Add Operator dropdown

Add third token in the filtered_search -- the middle token which is
an operator with one of two permissible values. Equal or Not Equal
written as `=` or `!=`.

This operator allows an user to filter issues much more efficiently
wherein they can say `author=me assignee!=someone`, to exactly pin point
the search.

app/assets/javascripts/droplab/drop_down.js

@@ -101,6 +101,11 @@ class DropDown {
 
   render(data) {
     const children = data ? data.map(this.renderChildren.bind(this)) : [];
+
+    if (this.list.querySelector('.filter-dropdown-loading')) {
+      return;
+    }
+
     const renderableList = this.list.querySelector('ul[data-dynamic]') || this.list;
 
     renderableList.innerHTML = children.join('');

app/assets/javascripts/filtered_search/add_extra_tokens_for_merge_requests.js

@@ -2,6 +2,7 @@ import { __ } from '~/locale';
 
 export default IssuableTokenKeys => {
   const wipToken = {
+    formattedKey: __('WIP'),
     key: 'wip',
     type: 'string',
     param: '',
@@ -17,6 +18,7 @@ export default IssuableTokenKeys => {
   IssuableTokenKeys.tokenKeysWithAlternative.push(wipToken);
 
   const targetBranchToken = {
+    formattedKey: __('Target-Branch'),
     key: 'target-branch',
     type: 'string',
     param: '',

app/assets/javascripts/filtered_search/admin_runners_filtered_search_token_keys.js

+import { __ } from '~/locale';
 import FilteredSearchTokenKeys from './filtered_search_token_keys';
 
 const tokenKeys = [
   {
+    formattedKey: __('Status'),
     key: 'status',
     type: 'string',
     param: 'status',
@@ -10,6 +12,7 @@ const tokenKeys = [
     tag: 'status',
   },
   {
+    formattedKey: __('Type'),
     key: 'type',
     type: 'string',
     param: 'type',
@@ -18,6 +21,7 @@ const tokenKeys = [
     tag: 'type',
   },
   {
+    formattedKey: __('Tag'),
     key: 'tag',
     type: 'array',
     param: 'name[]',

app/assets/javascripts/filtered_search/available_dropdown_mappings.js

@@ -4,6 +4,7 @@ import DropdownNonUser from './dropdown_non_user';
 import DropdownEmoji from './dropdown_emoji';
 import NullDropdown from './null_dropdown';
 import DropdownAjaxFilter from './dropdown_ajax_filter';
+import DropdownOperator from './dropdown_operator';
 import DropdownUtils from './dropdown_utils';
 import { mergeUrlParams } from '../lib/utils/url_utility';
 
@@ -40,6 +41,11 @@ export default class AvailableDropdownMappings {
         gl: DropdownHint,
         element: this.container.querySelector('#js-dropdown-hint'),
       },
+      operator: {
+        reference: null,
+        gl: DropdownOperator,
+        element: this.container.querySelector('#js-dropdown-operator'),
+      },
     };
 
     supportedTokens.forEach(type => {

app/assets/javascripts/filtered_search/components/recent_searches_dropdown_content.vue

@@ -29,6 +29,7 @@ export default {
 
         const resultantTokens = tokens.map(token => ({
           prefix: `${token.key}:`,
+          operator: token.operator,
           suffix: `${token.symbol}${token.value}`,
         }));
 
@@ -75,6 +76,7 @@ export default {
               class="filtered-search-history-dropdown-token"
             >
               <span class="name">{{ token.prefix }}</span>
+              <span class="name">{{ token.operator }}</span>
               <span class="value">{{ token.suffix }}</span>
             </span>
           </span>

app/assets/javascripts/filtered_search/constants.js

-/* eslint-disable import/prefer-default-export */
 export const USER_TOKEN_TYPES = ['author', 'assignee'];
+
+export const DROPDOWN_TYPE = {
+  hint: 'hint',
+  operator: 'operator',
+};

app/assets/javascripts/filtered_search/dropdown_ajax_filter.js

@@ -45,7 +45,7 @@ export default class DropdownAjaxFilter extends FilteredSearchDropdown {
 
   getSearchInput() {
     const query = DropdownUtils.getSearchInput(this.input);
-    const { lastToken } = FilteredSearchTokenizer.processTokens(query, this.tokenKeys.get());
+    const { lastToken } = FilteredSearchTokenizer.processTokens(query, this.tokenKeys.getKeys());
 
     let value = lastToken || '';
 

app/assets/javascripts/filtered_search/dropdown_hint.js

@@ -3,6 +3,7 @@ import FilteredSearchDropdown from './filtered_search_dropdown';
 import DropdownUtils from './dropdown_utils';
 import FilteredSearchDropdownManager from './filtered_search_dropdown_manager';
 import FilteredSearchVisualTokens from './filtered_search_visual_tokens';
+import { __ } from '~/locale';
 
 export default class DropdownHint extends FilteredSearchDropdown {
   constructor(options = {}) {
@@ -30,8 +31,8 @@ export default class DropdownHint extends FilteredSearchDropdown {
         this.dismissDropdown();
         this.dispatchFormSubmitEvent();
       } else {
-        const token = selected.querySelector('.js-filter-hint').innerText.trim();
-        const tag = selected.querySelector('.js-filter-tag').innerText.trim();
+        const filterItemEl = selected.closest('.filter-dropdown-item');
+        const { hint: token, tag } = filterItemEl.dataset;
 
         if (tag.length) {
           // Get previous input values in the input field and convert them into visual tokens
@@ -55,8 +56,13 @@ export default class DropdownHint extends FilteredSearchDropdown {
 
           const key = token.replace(':', '');
           const { uppercaseTokenName } = this.tokenKeys.searchByKey(key);
-          FilteredSearchDropdownManager.addWordToInput(key, '', false, {
-            uppercaseTokenName,
+
+          FilteredSearchDropdownManager.addWordToInput({
+            tokenName: key,
+            clicked: false,
+            options: {
+              uppercaseTokenName,
+            },
           });
         }
         this.dismissDropdown();
@@ -66,15 +72,30 @@ export default class DropdownHint extends FilteredSearchDropdown {
   }
 
   renderContent() {
-    const dropdownData = this.tokenKeys.get().map(tokenKey => ({
-      icon: `${gon.sprite_icons}#${tokenKey.icon}`,
-      hint: tokenKey.key,
-      tag: `:${tokenKey.tag}`,
-      type: tokenKey.type,
-    }));
+    const searchItem = [
+      {
+        hint: 'search',
+        tag: 'search',
+        formattedKey: __('Search for this text'),
+        icon: `${gon.sprite_icons}#search`,
+      },
+    ];
+
+    const dropdownData = this.tokenKeys
+      .get()
+      .map(tokenKey => ({
+        icon: `${gon.sprite_icons}#${tokenKey.icon}`,
+        hint: tokenKey.key,
+        tag: `:${tokenKey.tag}`,
+        type: tokenKey.type,
+        formattedKey: tokenKey.formattedKey,
+      }))
+      .concat(searchItem);
 
     this.droplab.changeHookList(this.hookId, this.dropdown, [Filter], this.config);
     this.droplab.setData(this.hookId, dropdownData);
+
+    super.renderContent();
   }
 
   init() {

app/assets/javascripts/filtered_search/dropdown_operator.js

+import Filter from '~/droplab/plugins/filter';
+import { __ } from '~/locale';
+import FilteredSearchDropdown from './filtered_search_dropdown';
+import DropdownUtils from './dropdown_utils';
+import FilteredSearchDropdownManager from './filtered_search_dropdown_manager';
+import FilteredSearchVisualTokens from './filtered_search_visual_tokens';
+
+export default class DropdownOperator extends FilteredSearchDropdown {
+  constructor(options = {}) {
+    const { input, tokenKeys } = options;
+    super(options);
+
+    this.config = {
+      Filter: {
+        filterFunction: DropdownUtils.filterWithSymbol.bind(null, '', input),
+        template: 'title',
+      },
+    };
+    this.tokenKeys = tokenKeys;
+  }
+
+  itemClicked(e) {
+    const { selected } = e.detail;
+
+    if (selected.tagName === 'LI') {
+      if (selected.hasAttribute('data-value')) {
+        const operator = selected.dataset.value;
+        FilteredSearchVisualTokens.removeLastTokenPartial();
+        FilteredSearchDropdownManager.addWordToInput({
+          tokenName: this.filter,
+          tokenOperator: operator,
+          clicked: false,
+        });
+      }
+    }
+    this.dismissDropdown();
+    this.dispatchInputEvent();
+  }
+
+  renderContent(forceShowList = false) {
+    this.filter = FilteredSearchVisualTokens.getLastTokenPartial();
+
+    const dropdownData = [
+      {
+        tag: 'equal',
+        type: 'string',
+        title: '=',
+        help: __('Is'),
+      },
+      {
+        tag: 'not-equal',
+        type: 'string',
+        title: '!=',
+        help: __('Is not'),
+      },
+    ];
+    this.droplab.changeHookList(this.hookId, this.dropdown, [Filter], this.config);
+    this.droplab.setData(this.hookId, dropdownData);
+    super.renderContent(forceShowList);
+  }
+
+  init() {
+    this.droplab.addHook(this.input, this.dropdown, [Filter], this.config).init();
+  }
+}

app/assets/javascripts/filtered_search/dropdown_utils.js

@@ -62,28 +62,42 @@ export default class DropdownUtils {
     const lastKey = lastToken.key || lastToken || '';
     const allowMultiple = item.type === 'array';
     const itemInExistingTokens = tokens.some(t => t.key === item.hint);
+    const isSearchItem = updatedItem.hint === 'search';
+
+    if (isSearchItem) {
+      updatedItem.droplab_hidden = true;
+    }
 
     if (!allowMultiple && itemInExistingTokens) {
       updatedItem.droplab_hidden = true;
-    } else if (!lastKey || _.last(searchInput.split('')) === ' ') {
+    } else if (!isSearchItem && (!lastKey || _.last(searchInput.split('')) === ' ')) {
       updatedItem.droplab_hidden = false;
     } else if (lastKey) {
       const split = lastKey.split(':');
       const tokenName = _.last(split[0].split(' '));
 
-      const match = updatedItem.hint.indexOf(tokenName.toLowerCase()) === -1;
+      const match = isSearchItem
+        ? allowedKeys.some(key => key.startsWith(tokenName.toLowerCase()))
+        : updatedItem.hint.indexOf(tokenName.toLowerCase()) === -1;
+
       updatedItem.droplab_hidden = tokenName ? match : false;
     }
 
     return updatedItem;
   }
 
-  static setDataValueIfSelected(filter, selected) {
+  static setDataValueIfSelected(filter, operator, selected) {
     const dataValue = selected.getAttribute('data-value');
 
     if (dataValue) {
-      FilteredSearchDropdownManager.addWordToInput(filter, dataValue, true, {
-        capitalizeTokenValue: selected.hasAttribute('data-capitalize'),
+      FilteredSearchDropdownManager.addWordToInput({
+        tokenName: filter,
+        tokenOperator: operator,
+        tokenValue: dataValue,
+        clicked: true,
+        options: {
+          capitalizeTokenValue: selected.hasAttribute('data-capitalize'),
+        },
       });
     }
 
@@ -101,7 +115,11 @@ export default class DropdownUtils {
       // remove leading symbol and wrapping quotes
       tokenValue = tokenValue.replace(/^~("|')?(.*)/, '$2').replace(/("|')$/, '');
     }
-    return { tokenName, tokenValue };
+
+    const operatorEl = visualToken && visualToken.querySelector('.operator');
+    const tokenOperator = operatorEl && operatorEl.textContent.trim();
+
+    return { tokenName, tokenOperator, tokenValue };
   }
 
   // Determines the full search query (visual tokens + input)
@@ -119,10 +137,16 @@ export default class DropdownUtils {
     tokens.forEach(token => {
       if (token.classList.contains('js-visual-token')) {
         const name = token.querySelector('.name');
+        const operatorContainer = token.querySelector('.operator');
         const value = token.querySelector('.value');
         const valueContainer = token.querySelector('.value-container');
         const symbol = value && value.dataset.symbol ? value.dataset.symbol : '';
         let valueText = '';
+        let operator = '';
+
+        if (operatorContainer) {
+          operator = operatorContainer.textContent.trim();
+        }
 
         if (valueContainer && valueContainer.dataset.originalValue) {
           valueText = valueContainer.dataset.originalValue;
@@ -131,7 +155,7 @@ export default class DropdownUtils {
         }
 
         if (token.className.indexOf('filtered-search-token') !== -1) {
-          values.push(`${name.innerText.toLowerCase()}:${symbol}${valueText}`);
+          values.push(`${name.innerText.toLowerCase()}:${operator}${symbol}${valueText}`);
         } else {
           values.push(name.innerText);
         }

app/assets/javascripts/filtered_search/filtered_search_dropdown.js

 import DropdownUtils from './dropdown_utils';
 import FilteredSearchDropdownManager from './filtered_search_dropdown_manager';
+import FilteredSearchVisualTokens from './filtered_search_visual_tokens';
 
 const DATA_DROPDOWN_TRIGGER = 'data-dropdown-trigger';
 
@@ -31,13 +32,26 @@ export default class FilteredSearchDropdown {
 
   itemClicked(e, getValueFunction) {
     const { selected } = e.detail;
-
     if (selected.tagName === 'LI' && selected.innerHTML) {
-      const dataValueSet = DropdownUtils.setDataValueIfSelected(this.filter, selected);
+      const {
+        lastVisualToken: visualToken,
+      } = FilteredSearchVisualTokens.getLastVisualTokenBeforeInput();
+      const { tokenOperator } = DropdownUtils.getVisualTokenValues(visualToken);
+
+      const dataValueSet = DropdownUtils.setDataValueIfSelected(
+        this.filter,
+        tokenOperator,
+        selected,
+      );
 
       if (!dataValueSet) {
         const value = getValueFunction(selected);
-        FilteredSearchDropdownManager.addWordToInput(this.filter, value, true);
+        FilteredSearchDropdownManager.addWordToInput({
+          tokenName: this.filter,
+          tokenOperator,
+          tokenValue: value,
+          clicked: true,
+        });
       }
 
       this.resetFilters();

app/assets/javascripts/filtered_search/filtered_search_dropdown_manager.js

@@ -5,6 +5,7 @@ import FilteredSearchContainer from './container';
 import FilteredSearchTokenKeys from './filtered_search_token_keys';
 import DropdownUtils from './dropdown_utils';
 import FilteredSearchVisualTokens from './filtered_search_visual_tokens';
+import { DROPDOWN_TYPE } from './constants';
 
 export default class FilteredSearchDropdownManager {
   constructor({
@@ -67,10 +68,16 @@ export default class FilteredSearchDropdownManager {
     this.mapping = availableMappings.getAllowedMappings(supportedTokens);
   }
 
-  static addWordToInput(tokenName, tokenValue = '', clicked = false, options = {}) {
+  static addWordToInput({
+    tokenName,
+    tokenOperator = '',
+    tokenValue = '',
+    clicked = false,
+    options = {},
+  }) {
     const { uppercaseTokenName = false, capitalizeTokenValue = false } = options;
     const input = FilteredSearchContainer.container.querySelector('.filtered-search');
-    FilteredSearchVisualTokens.addFilterVisualToken(tokenName, tokenValue, {
+    FilteredSearchVisualTokens.addFilterVisualToken(tokenName, tokenOperator, tokenValue, {
       uppercaseTokenName,
       capitalizeTokenValue,
     });
@@ -129,7 +136,10 @@ export default class FilteredSearchDropdownManager {
       mappingKey.reference.init();
     }
 
-    if (this.currentDropdown === 'hint') {
+    if (
+      this.currentDropdown === DROPDOWN_TYPE.hint ||
+      this.currentDropdown === DROPDOWN_TYPE.operator
+    ) {
       // Force the dropdown to show if it was clicked from the hint dropdown
       forceShowList = true;
     }
@@ -148,13 +158,19 @@ export default class FilteredSearchDropdownManager {
       this.droplab = new DropLab();
     }
 
+    if (dropdownName === DROPDOWN_TYPE.operator) {
+      this.load(dropdownName, firstLoad);
+      return;
+    }
+
     const match = this.filteredSearchTokenKeys.searchByKey(dropdownName.toLowerCase());
     const shouldOpenFilterDropdown =
       match && this.currentDropdown !== match.key && this.mapping[match.key];
-    const shouldOpenHintDropdown = !match && this.currentDropdown !== 'hint';
+    const shouldOpenHintDropdown = !match && this.currentDropdown !== DROPDOWN_TYPE.hint;
 
     if (shouldOpenFilterDropdown || shouldOpenHintDropdown) {
-      const key = match && match.key ? match.key : 'hint';
+      const key = match && match.key ? match.key : DROPDOWN_TYPE.hint;
+
       this.load(key, firstLoad);
     }
   }
@@ -169,19 +185,32 @@ export default class FilteredSearchDropdownManager {
     if (this.currentDropdown) {
       this.updateCurrentDropdownOffset();
     }
-
     if (lastToken === searchToken && lastToken !== null) {
       // Token is not fully initialized yet because it has no value
       // Eg. token = 'label:'
 
       const split = lastToken.split(':');
       const dropdownName = _.last(split[0].split(' '));
-      this.loadDropdown(split.length > 1 ? dropdownName : '');
+      const possibleOperatorToken = _.last(split[1]);
+
+      const hasOperator = FilteredSearchVisualTokens.permissibleOperatorValues.includes(
+        possibleOperatorToken && possibleOperatorToken.trim(),
+      );
+
+      let dropdownToOpen = '';
+
+      if (split.length > 1) {
+        const lastOperatorToken = FilteredSearchVisualTokens.getLastTokenOperator();
+        dropdownToOpen = hasOperator && lastOperatorToken ? dropdownName : DROPDOWN_TYPE.operator;
+      }
+
+      this.loadDropdown(dropdownToOpen);
     } else if (lastToken) {
+      const lastOperator = FilteredSearchVisualTokens.getLastTokenOperator();
       // Token has been initialized into an object because it has a value
-      this.loadDropdown(lastToken.key);
+      this.loadDropdown(lastOperator ? lastToken.key : DROPDOWN_TYPE.operator);
     } else {
-      this.loadDropdown('hint');
+      this.loadDropdown(DROPDOWN_TYPE.hint);
     }
   }
 

app/assets/javascripts/filtered_search/filtered_search_manager.js

@@ -14,6 +14,7 @@ import FilteredSearchTokenizer from './filtered_search_tokenizer';
 import FilteredSearchDropdownManager from './filtered_search_dropdown_manager';
 import FilteredSearchVisualTokens from './filtered_search_visual_tokens';
 import DropdownUtils from './dropdown_utils';
+import { BACKSPACE_KEY_CODE } from '~/lib/utils/keycodes';
 import { __ } from '~/locale';
 
 export default class FilteredSearchManager {
@@ -58,6 +59,8 @@ export default class FilteredSearchManager {
     this.recentSearchesService = new RecentSearchesService(recentSearchesKey);
   }
 
+  static notTransformableQueryParams = ['scope', 'utf8', 'state', 'search'];
+
   setup() {
     // Fetch recent searches from localStorage
     this.fetchingRecentSearchesPromise = this.recentSearchesService
@@ -84,6 +87,7 @@ export default class FilteredSearchManager {
 
     if (this.filteredSearchInput) {
       this.tokenizer = FilteredSearchTokenizer;
+
       this.dropdownManager = new FilteredSearchDropdownManager({
         runnerTagsEndpoint:
           this.filteredSearchInput.getAttribute('data-runner-tags-endpoint') || '',
@@ -172,7 +176,7 @@ export default class FilteredSearchManager {
     this.filteredSearchInput.addEventListener('input', this.setDropdownWrapper);
     this.filteredSearchInput.addEventListener('input', this.toggleClearSearchButtonWrapper);
     this.filteredSearchInput.addEventListener('input', this.handleInputPlaceholderWrapper);
-    this.filteredSearchInput.addEventListener('input', this.handleInputVisualTokenWrapper);
+    this.filteredSearchInput.addEventListener('keyup', this.handleInputVisualTokenWrapper);
     this.filteredSearchInput.addEventListener('keydown', this.checkForEnterWrapper);
     this.filteredSearchInput.addEventListener('keyup', this.checkForBackspaceWrapper);
     this.filteredSearchInput.addEventListener('click', this.tokenChange);
@@ -194,7 +198,7 @@ export default class FilteredSearchManager {
     this.filteredSearchInput.removeEventListener('input', this.setDropdownWrapper);
     this.filteredSearchInput.removeEventListener('input', this.toggleClearSearchButtonWrapper);
     this.filteredSearchInput.removeEventListener('input', this.handleInputPlaceholderWrapper);
-    this.filteredSearchInput.removeEventListener('input', this.handleInputVisualTokenWrapper);
+    this.filteredSearchInput.removeEventListener('keyup', this.handleInputVisualTokenWrapper);
     this.filteredSearchInput.removeEventListener('keydown', this.checkForEnterWrapper);
     this.filteredSearchInput.removeEventListener('keyup', this.checkForBackspaceWrapper);
     this.filteredSearchInput.removeEventListener('click', this.tokenChange);
@@ -228,7 +232,7 @@ export default class FilteredSearchManager {
 
           if (backspaceCount === 2) {
             backspaceCount = 0;
-            this.filteredSearchInput.value = FilteredSearchVisualTokens.getLastTokenPartial();
+            this.filteredSearchInput.value = FilteredSearchVisualTokens.getLastTokenPartial(true);
             FilteredSearchVisualTokens.removeLastTokenPartial();
           }
         }
@@ -407,7 +411,12 @@ export default class FilteredSearchManager {
     }
   }
 
-  handleInputVisualToken() {
+  handleInputVisualToken(e) {
+    // If the keyCode was 8 then do not form new tokens
+    if (e.keyCode === BACKSPACE_KEY_CODE) {
+      return;
+    }
+
     const input = this.filteredSearchInput;
     const { tokens, searchToken } = this.tokenizer.processTokens(
       input.value,
@@ -417,14 +426,21 @@ export default class FilteredSearchManager {
 
     if (isLastVisualTokenValid) {
       tokens.forEach(t => {
-        input.value = input.value.replace(`${t.key}:${t.symbol}${t.value}`, '');
-        FilteredSearchVisualTokens.addFilterVisualToken(t.key, `${t.symbol}${t.value}`, {
-          uppercaseTokenName: this.filteredSearchTokenKeys.shouldUppercaseTokenName(t.key),
-          capitalizeTokenValue: this.filteredSearchTokenKeys.shouldCapitalizeTokenValue(t.key),
-        });
+        input.value = input.value.replace(`${t.key}:${t.operator}${t.symbol}${t.value}`, '');
+
+        FilteredSearchVisualTokens.addFilterVisualToken(
+          t.key,
+          t.operator,
+          `${t.symbol}${t.value}`,
+          {
+            uppercaseTokenName: this.filteredSearchTokenKeys.shouldUppercaseTokenName(t.key),
+            capitalizeTokenValue: this.filteredSearchTokenKeys.shouldCapitalizeTokenValue(t.key),
+          },
+        );
       });
 
       const fragments = searchToken.split(':');
+
       if (fragments.length > 1) {
         const inputValues = fragments[0].split(' ');
         const tokenKey = _.last(inputValues);
@@ -437,19 +453,58 @@ export default class FilteredSearchManager {
           FilteredSearchVisualTokens.addSearchVisualToken(searchTerms);
         }
 
-        FilteredSearchVisualTokens.addFilterVisualToken(tokenKey, null, {
+        FilteredSearchVisualTokens.addFilterVisualToken(tokenKey, null, null, {
           uppercaseTokenName: this.filteredSearchTokenKeys.shouldUppercaseTokenName(tokenKey),
           capitalizeTokenValue: this.filteredSearchTokenKeys.shouldCapitalizeTokenValue(tokenKey),
         });
         input.value = input.value.replace(`${tokenKey}:`, '');
       }
+
+      const splitSearchToken = searchToken && searchToken.split(' ');
+      let lastSearchToken = _.last(splitSearchToken);
+      lastSearchToken = lastSearchToken?.toLowerCase();
+
+      /**
+       * If user writes "milestone", a known token, in the input, we should not
+       * wait for leading colon to flush it as a filter token.
+       */
+      if (this.filteredSearchTokenKeys.getKeys().includes(lastSearchToken)) {
+        if (splitSearchToken.length > 1) {
+          splitSearchToken.pop();
+          const searchVisualTokens = splitSearchToken.join(' ');
+
+          input.value = input.value.replace(searchVisualTokens, '');
+          FilteredSearchVisualTokens.addSearchVisualToken(searchVisualTokens);
+        }
+        FilteredSearchVisualTokens.addFilterVisualToken(lastSearchToken, null, null, {
+          uppercaseTokenName: this.filteredSearchTokenKeys.shouldUppercaseTokenName(
+            lastSearchToken,
+          ),
+          capitalizeTokenValue: this.filteredSearchTokenKeys.shouldCapitalizeTokenValue(
+            lastSearchToken,
+          ),
+        });
+        input.value = input.value.replace(lastSearchToken, '');
+      }
+    } else if (!isLastVisualTokenValid && !FilteredSearchVisualTokens.getLastTokenOperator()) {
+      const tokenKey = FilteredSearchVisualTokens.getLastTokenPartial();
+      const tokenOperator = searchToken && searchToken.trim();
+
+      // Tokenize operator only if the operator token is valid
+      if (FilteredSearchVisualTokens.permissibleOperatorValues.includes(tokenOperator)) {
+        FilteredSearchVisualTokens.removeLastTokenPartial();
+        FilteredSearchVisualTokens.addFilterVisualToken(tokenKey, tokenOperator, null, {
+          capitalizeTokenValue: this.filteredSearchTokenKeys.shouldCapitalizeTokenValue(tokenKey),
+        });
+        input.value = input.value.replace(searchToken, '').trim();
+      }
     } else {
       // Keep listening to token until we determine that the user is done typing the token value
       const valueCompletedRegex = /([~%@]{0,1}".+")|([~%@]{0,1}'.+')|^((?![~%@]')(?![~%@]")(?!')(?!")).*/g;
 
       if (searchToken.match(valueCompletedRegex) && input.value[input.value.length - 1] === ' ') {
         const tokenKey = FilteredSearchVisualTokens.getLastTokenPartial();
-        FilteredSearchVisualTokens.addFilterVisualToken(searchToken, null, {
+        FilteredSearchVisualTokens.addFilterVisualToken(searchToken, null, null, {
           capitalizeTokenValue: this.filteredSearchTokenKeys.shouldCapitalizeTokenValue(tokenKey),
         });
 
@@ -484,9 +539,52 @@ export default class FilteredSearchManager {
     return this.modifyUrlParams ? this.modifyUrlParams(urlParams) : urlParams;
   }
 
+  transformParams(params) {
+    /**
+     * Extract key, value pair from the `not` query param:
+     * Query param looks like not[key]=value
+     *
+     * Eg. not[foo]=%bar
+     * key = foo; value = %bar
+     */
+    const notKeyValueRegex = new RegExp(/not\[(\w+)\]\[?\]?=(.*)/);
+
+    return params.map(query => {
+      // Check if there are matches for `not` operator
+      const matches = query.match(notKeyValueRegex);
+      if (matches && matches.length === 3) {
+        const keyParam = matches[1];
+        if (
+          FilteredSearchManager.notTransformableQueryParams.includes(keyParam) ||
+          this.filteredSearchTokenKeys.searchByConditionUrl(query)
+        ) {
+          return query;
+        }
+
+        const valueParam = matches[2];
+        // Not operator
+        const operator = encodeURIComponent('!=');
+        return `${keyParam}=${operator}${valueParam}`;
+      }
+
+      const [keyParam, valueParam] = query.split('=');
+
+      if (
+        FilteredSearchManager.notTransformableQueryParams.includes(keyParam) ||
+        this.filteredSearchTokenKeys.searchByConditionUrl(query)
+      ) {
+        return query;
+      }
+
+      const operator = encodeURIComponent('=');
+      return `${keyParam}=${operator}${valueParam}`;
+    });
+  }
+
   loadSearchParamsFromURL() {
     const urlParams = getUrlParamsArray();
-    const params = this.getAllParams(urlParams);
+    const withOperatorParams = this.transformParams(urlParams);
+    const params = this.getAllParams(withOperatorParams);
     const usernameParams = this.getUsernameParams();
     let hasFilteredSearch = false;
 
@@ -501,9 +599,14 @@ export default class FilteredSearchManager {
       if (condition) {
         hasFilteredSearch = true;
         const canEdit = this.canEdit && this.canEdit(condition.tokenKey);
-        FilteredSearchVisualTokens.addFilterVisualToken(condition.tokenKey, condition.value, {
-          canEdit,
-        });
+        FilteredSearchVisualTokens.addFilterVisualToken(
+          condition.tokenKey,
+          condition.operator,
+          condition.value,
+          {
+            canEdit,
+          },
+        );
       } else {
         // Sanitize value since URL converts spaces into +
         // Replace before decode so that we know what was originally + versus the encoded +
@@ -522,9 +625,12 @@ export default class FilteredSearchManager {
           hasFilteredSearch = true;
           const canEdit = this.canEdit && this.canEdit(key, sanitizedValue);
           const { uppercaseTokenName, capitalizeTokenValue } = match;
+          const operator = FilteredSearchVisualTokens.getOperatorToken(sanitizedValue);
+          const sanitizedToken = FilteredSearchVisualTokens.getValueToken(sanitizedValue);
           FilteredSearchVisualTokens.addFilterVisualToken(
             key,
-            `${symbol}${quotationsToUse}${sanitizedValue}${quotationsToUse}`,
+            operator,
+            `${symbol}${quotationsToUse}${sanitizedToken}${quotationsToUse}`,
             {
               canEdit,
               uppercaseTokenName,
@@ -537,7 +643,10 @@ export default class FilteredSearchManager {
             hasFilteredSearch = true;
             const tokenName = 'assignee';
             const canEdit = this.canEdit && this.canEdit(tokenName);
-            FilteredSearchVisualTokens.addFilterVisualToken(tokenName, `@${usernameParams[id]}`, {
+            const operator = FilteredSearchVisualTokens.getOperatorToken(usernameParams[id]);
+            const valueToken = FilteredSearchVisualTokens.getValueToken(usernameParams[id]);
+
+            FilteredSearchVisualTokens.addFilterVisualToken(tokenName, operator, `@${valueToken}`, {
               canEdit,
             });
           }
@@ -547,7 +656,10 @@ export default class FilteredSearchManager {
             hasFilteredSearch = true;
             const tokenName = 'author';
             const canEdit = this.canEdit && this.canEdit(tokenName);
-            FilteredSearchVisualTokens.addFilterVisualToken(tokenName, `@${usernameParams[id]}`, {
+            const operator = FilteredSearchVisualTokens.getOperatorToken(usernameParams[id]);
+            const valueToken = FilteredSearchVisualTokens.getValueToken(usernameParams[id]);
+
+            FilteredSearchVisualTokens.addFilterVisualToken(tokenName, operator, `@${valueToken}`, {
               canEdit,
             });
           }
@@ -582,7 +694,6 @@ export default class FilteredSearchManager {
   search(state = null) {
     const paths = [];
     const searchQuery = DropdownUtils.getSearchQuery();
-
     this.saveCurrentSearchQuery();
 
     const tokenKeys = this.filteredSearchTokenKeys.getKeys();
@@ -593,6 +704,7 @@ export default class FilteredSearchManager {
     tokens.forEach(token => {
       const condition = this.filteredSearchTokenKeys.searchByConditionKeyValue(
         token.key,
+        token.operator,
         token.value,
       );
       const tokenConfig = this.filteredSearchTokenKeys.searchByKey(token.key) || {};
@@ -620,7 +732,16 @@ export default class FilteredSearchManager {
           tokenValue = tokenValue.slice(1, tokenValue.length - 1);
         }
 
-        tokenPath = `${keyParam}=${encodeURIComponent(tokenValue)}`;
+        if (token.operator === '!=') {
+          const isArrayParam = keyParam.endsWith('[]');
+
+          tokenPath = `not[${isArrayParam ? keyParam.slice(0, -2) : keyParam}]${
+            isArrayParam ? '[]' : ''
+          }=${encodeURIComponent(tokenValue)}`;
+        } else {
+          // Default operator is `=`
+          tokenPath = `${keyParam}=${encodeURIComponent(tokenValue)}`;
+        }
       }
 
       paths.push(tokenPath);

app/assets/javascripts/filtered_search/filtered_search_token_keys.js

@@ -65,17 +65,20 @@ export default class FilteredSearchTokenKeys {
     return this.conditions.find(condition => condition.url === url) || null;
   }
 
-  searchByConditionKeyValue(key, value) {
+  searchByConditionKeyValue(key, operator, value) {
     return (
       this.conditions.find(
         condition =>
-          condition.tokenKey === key && condition.value.toLowerCase() === value.toLowerCase(),
+          condition.tokenKey === key &&
+          condition.operator === operator &&
+          condition.value.toLowerCase() === value.toLowerCase(),
       ) || null
     );
   }
 
   addExtraTokensForIssues() {
     const confidentialToken = {
+      formattedKey: __('Confidential'),
       key: 'confidential',
       type: 'string',
       param: '',

app/assets/javascripts/filtered_search/filtered_search_tokenizer.js

@@ -2,10 +2,11 @@ import './filtered_search_token_keys';
 
 export default class FilteredSearchTokenizer {
   static processTokens(input, allowedKeys) {
-    // Regex extracts `(token):(symbol)(value)`
+    // Regex extracts `(token):(operator)(symbol)(value)`
     // Values that start with a double quote must end in a double quote (same for single)
+
     const tokenRegex = new RegExp(
-      `(${allowedKeys.join('|')}):([~%@]?)(?:('[^']*'{0,1})|("[^"]*"{0,1})|(\\S+))`,
+      `(${allowedKeys.join('|')}):(=|!=)?([~%@]?)(?:('[^']*'{0,1})|("[^"]*"{0,1})|(\\S+))`,
       'g',
     );
     const tokens = [];
@@ -13,16 +14,22 @@ export default class FilteredSearchTokenizer {
     let lastToken = null;
     const searchToken =
       input
-        .replace(tokenRegex, (match, key, symbol, v1, v2, v3) => {
+        .replace(tokenRegex, (match, key, operator, symbol, v1, v2, v3) => {
           let tokenValue = v1 || v2 || v3;
           let tokenSymbol = symbol;
           let tokenIndex = '';
+          let tokenOperator = operator;
 
           if (tokenValue === '~' || tokenValue === '%' || tokenValue === '@') {
             tokenSymbol = tokenValue;
             tokenValue = '';
           }
 
+          if (tokenValue === '!=' || tokenValue === '=') {
+            tokenOperator = tokenValue;
+            tokenValue = '';
+          }
+
           tokenIndex = `${key}:${tokenValue}`;
 
           // Prevent adding duplicates
@@ -33,6 +40,7 @@ export default class FilteredSearchTokenizer {
               key,
               value: tokenValue || '',
               symbol: tokenSymbol || '',
+              operator: tokenOperator || '',
             });
           }
 
@@ -43,13 +51,12 @@ export default class FilteredSearchTokenizer {
 
     if (tokens.length > 0) {
       const last = tokens[tokens.length - 1];
-      const lastString = `${last.key}:${last.symbol}${last.value}`;
+      const lastString = `${last.key}:${last.operator}${last.symbol}${last.value}`;
       lastToken =
         input.lastIndexOf(lastString) === input.length - lastString.length ? last : searchToken;
     } else {
       lastToken = searchToken;
     }
-
     return {
       tokens,
       lastToken,

app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js

@@ -3,6 +3,32 @@ import { objectToQueryString } from '~/lib/utils/common_utils';
 import FilteredSearchContainer from './container';
 
 export default class FilteredSearchVisualTokens {
+  static permissibleOperatorValues = ['=', '!='];
+
+  static getOperatorToken(value) {
+    let token = null;
+
+    FilteredSearchVisualTokens.permissibleOperatorValues.forEach(operatorToken => {
+      if (value.startsWith(operatorToken)) {
+        token = operatorToken;
+      }
+    });
+
+    return token;
+  }
+
+  static getValueToken(value) {
+    let newValue = value;
+
+    FilteredSearchVisualTokens.permissibleOperatorValues.forEach(operatorToken => {
+      if (value.startsWith(operatorToken)) {
+        newValue = value.slice(operatorToken.length);
+      }
+    });
+
+    return newValue;
+  }
+
   static getLastVisualTokenBeforeInput() {
     const inputLi = FilteredSearchContainer.container.querySelector('.input-token');
     const lastVisualToken = inputLi && inputLi.previousElementSibling;
@@ -12,7 +38,9 @@ export default class FilteredSearchVisualTokens {
       isLastVisualTokenValid:
         lastVisualToken === null ||
         lastVisualToken.className.indexOf('filtered-search-term') !== -1 ||
-        (lastVisualToken && lastVisualToken.querySelector('.value') !== null),
+        (lastVisualToken &&
+          lastVisualToken.querySelector('.operator') !== null &&
+          lastVisualToken.querySelector('.value') !== null),
     };
   }
 
@@ -42,11 +70,17 @@ export default class FilteredSearchVisualTokens {
   }
 
   static createVisualTokenElementHTML(options = {}) {
-    const { canEdit = true, uppercaseTokenName = false, capitalizeTokenValue = false } = options;
+    const {
+      canEdit = true,
+      hasOperator = false,
+      uppercaseTokenName = false,
+      capitalizeTokenValue = false,
+    } = options;
 
     return `
       <div class="${canEdit ? 'selectable' : 'hidden'}" role="button">
         <div class="${uppercaseTokenName ? 'text-uppercase' : ''} name"></div>
+        ${hasOperator ? '<div class="operator"></div>' : ''}
         <div class="value-container">
           <div class="${capitalizeTokenValue ? 'text-capitalize' : ''} value"></div>
           <div class="remove-token" role="button">
@@ -57,18 +91,18 @@ export default class FilteredSearchVisualTokens {
     `;
   }
 
-  static renderVisualTokenValue(parentElement, tokenName, tokenValue) {
+  static renderVisualTokenValue(parentElement, tokenName, tokenValue, tokenOperator) {
     const tokenType = tokenName.toLowerCase();
     const tokenValueContainer = parentElement.querySelector('.value-container');
     const tokenValueElement = tokenValueContainer.querySelector('.value');
     tokenValueElement.innerText = tokenValue;
 
-    const visualTokenValue = new VisualTokenValue(tokenValue, tokenType);
+    const visualTokenValue = new VisualTokenValue(tokenValue, tokenType, tokenOperator);
 
     visualTokenValue.render(tokenValueContainer, tokenValueElement);
   }
 
-  static addVisualTokenElement(name, value, options = {}) {
+  static addVisualTokenElement({ name, operator, value, options = {} }) {
     const {
       isSearchTerm = false,
       canEdit,
@@ -84,17 +118,32 @@ export default class FilteredSearchVisualTokens {
       li.classList.add(tokenClass);
     }
 
+    const hasOperator = Boolean(operator);
+
     if (value) {
       li.innerHTML = FilteredSearchVisualTokens.createVisualTokenElementHTML({
         canEdit,
         uppercaseTokenName,
+        operator,
+        hasOperator,
         capitalizeTokenValue,
       });
-      FilteredSearchVisualTokens.renderVisualTokenValue(li, name, value);
+      FilteredSearchVisualTokens.renderVisualTokenValue(li, name, value, operator);
     } else {
-      li.innerHTML = `<div class="${uppercaseTokenName ? 'text-uppercase' : ''} name"></div>`;
+      const nameHTML = `<div class="${uppercaseTokenName ? 'text-uppercase' : ''} name"></div>`;
+      let operatorHTML = '';
+
+      if (hasOperator) {
+        operatorHTML = '<div class="operator"></div>';
+      }
+
+      li.innerHTML = nameHTML + operatorHTML;
     }
+
     li.querySelector('.name').innerText = name;
+    if (hasOperator) {
+      li.querySelector('.operator').innerText = operator;
+    }
 
     const tokensContainer = FilteredSearchContainer.container.querySelector('.tokens-container');
     const input = FilteredSearchContainer.container.querySelector('.filtered-search');
@@ -109,14 +158,19 @@ export default class FilteredSearchVisualTokens {
 
     if (!isLastVisualTokenValid && lastVisualToken.classList.contains('filtered-search-token')) {
       const name = FilteredSearchVisualTokens.getLastTokenPartial();
-      lastVisualToken.innerHTML = FilteredSearchVisualTokens.createVisualTokenElementHTML();
+      const operator = FilteredSearchVisualTokens.getLastTokenOperator();
+      lastVisualToken.innerHTML = FilteredSearchVisualTokens.createVisualTokenElementHTML({
+        hasOperator: Boolean(operator),
+      });
       lastVisualToken.querySelector('.name').innerText = name;
-      FilteredSearchVisualTokens.renderVisualTokenValue(lastVisualToken, name, value);
+      lastVisualToken.querySelector('.operator').innerText = operator;
+      FilteredSearchVisualTokens.renderVisualTokenValue(lastVisualToken, name, value, operator);
     }
   }
 
   static addFilterVisualToken(
     tokenName,
+    tokenOperator,
     tokenValue,
     { canEdit, uppercaseTokenName = false, capitalizeTokenValue = false } = {},
   ) {
@@ -127,21 +181,51 @@ export default class FilteredSearchVisualTokens {
     const { addVisualTokenElement } = FilteredSearchVisualTokens;
 
     if (isLastVisualTokenValid) {
-      addVisualTokenElement(tokenName, tokenValue, {
-        canEdit,
-        uppercaseTokenName,
-        capitalizeTokenValue,
+      addVisualTokenElement({
+        name: tokenName,
+        operator: tokenOperator,
+        value: tokenValue,
+        options: {
+          canEdit,
+          uppercaseTokenName,
+          capitalizeTokenValue,
+        },
+      });
+    } else if (
+      !isLastVisualTokenValid &&
+      (lastVisualToken && !lastVisualToken.querySelector('.operator'))
+    ) {
+      const tokensContainer = FilteredSearchContainer.container.querySelector('.tokens-container');
+      tokensContainer.removeChild(lastVisualToken);
+      addVisualTokenElement({
+        name: tokenName,
+        operator: tokenOperator,
+        value: tokenValue,
+        options: {
+          canEdit,
+          uppercaseTokenName,
+          capitalizeTokenValue,
+        },
       });
     } else {
       const previousTokenName = lastVisualToken.querySelector('.name').innerText;
+      const previousTokenOperator = lastVisualToken.querySelector('.operator').innerText;
       const tokensContainer = FilteredSearchContainer.container.querySelector('.tokens-container');
       tokensContainer.removeChild(lastVisualToken);
 
-      const value = tokenValue || tokenName;
-      addVisualTokenElement(previousTokenName, value, {
-        canEdit,
-        uppercaseTokenName,
-        capitalizeTokenValue,
+      let value = tokenValue;
+      if (!value && !tokenOperator) {
+        value = tokenName;
+      }
+      addVisualTokenElement({
+        name: previousTokenName,
+        operator: previousTokenOperator,
+        value,
+        options: {
+          canEdit,
+          uppercaseTokenName,
+          capitalizeTokenValue,
+        },
       });
     }
   }
@@ -152,13 +236,18 @@ export default class FilteredSearchVisualTokens {
     if (lastVisualToken && lastVisualToken.classList.contains('filtered-search-term')) {
       lastVisualToken.querySelector('.name').innerText += ` ${searchTerm}`;
     } else {
-      FilteredSearchVisualTokens.addVisualTokenElement(searchTerm, null, {
-        isSearchTerm: true,
+      FilteredSearchVisualTokens.addVisualTokenElement({
+        name: searchTerm,
+        operator: null,
+        value: null,
+        options: {
+          isSearchTerm: true,
+        },
       });
     }
   }
 
-  static getLastTokenPartial() {
+  static getLastTokenPartial(includeOperator = false) {
     const { lastVisualToken } = FilteredSearchVisualTokens.getLastVisualTokenBeforeInput();
 
     if (!lastVisualToken) return '';
@@ -175,20 +264,36 @@ export default class FilteredSearchVisualTokens {
     const valueText = value ? value.innerText : '';
     const nameText = name ? name.innerText : '';
 
+    if (includeOperator) {
+      const operator = lastVisualToken.querySelector('.operator');
+      const operatorText = operator ? operator.innerText : '';
+      return valueText || operatorText || nameText;
+    }
+
     return valueText || nameText;
   }
 
+  static getLastTokenOperator() {
+    const { lastVisualToken } = FilteredSearchVisualTokens.getLastVisualTokenBeforeInput();
+
+    const operator = lastVisualToken && lastVisualToken.querySelector('.operator');
+
+    return operator?.innerText;
+  }
+
   static removeLastTokenPartial() {
     const { lastVisualToken } = FilteredSearchVisualTokens.getLastVisualTokenBeforeInput();
 
     if (lastVisualToken) {
       const value = lastVisualToken.querySelector('.value');
-
+      const operator = lastVisualToken.querySelector('.operator');
       if (value) {
         const button = lastVisualToken.querySelector('.selectable');
         const valueContainer = lastVisualToken.querySelector('.value-container');
         button.removeChild(valueContainer);
         lastVisualToken.innerHTML = button.innerHTML;
+      } else if (operator) {
+        lastVisualToken.removeChild(operator);
       } else {
         lastVisualToken.closest('.tokens-container').removeChild(lastVisualToken);
       }
@@ -236,12 +341,18 @@ export default class FilteredSearchVisualTokens {
     tokenContainer.replaceChild(inputLi, token);
 
     const nameElement = token.querySelector('.name');
+    const operatorElement = token.querySelector('.operator');
     let value;
 
     if (token.classList.contains('filtered-search-token')) {
-      FilteredSearchVisualTokens.addFilterVisualToken(nameElement.innerText, null, {
-        uppercaseTokenName: nameElement.classList.contains('text-uppercase'),
-      });
+      FilteredSearchVisualTokens.addFilterVisualToken(
+        nameElement.innerText,
+        operatorElement.innerText,
+        null,
+        {
+          uppercaseTokenName: nameElement.classList.contains('text-uppercase'),
+        },
+      );
 
       const valueContainerElement = token.querySelector('.value-container');
       value = valueContainerElement.dataset.originalValue;

app/assets/javascripts/filtered_search/issuable_filtered_search_token_keys.js

+import { flatten } from 'underscore';
 import FilteredSearchTokenKeys from './filtered_search_token_keys';
 import { __ } from '~/locale';
 
 export const tokenKeys = [
   {
+    formattedKey: __('Author'),
     key: 'author',
     type: 'string',
     param: 'username',
@@ -11,6 +13,7 @@ export const tokenKeys = [
     tag: '@author',
   },
   {
+    formattedKey: __('Assignee'),
     key: 'assignee',
     type: 'string',
     param: 'username',
@@ -19,6 +22,7 @@ export const tokenKeys = [
     tag: '@assignee',
   },
   {
+    formattedKey: __('Milestone'),
     key: 'milestone',
     type: 'string',
     param: 'title',
@@ -27,6 +31,7 @@ export const tokenKeys = [
     tag: '%milestone',
   },
   {
+    formattedKey: __('Release'),
     key: 'release',
     type: 'string',
     param: 'tag',
@@ -35,6 +40,7 @@ export const tokenKeys = [
     tag: __('tag name'),
   },
   {
+    formattedKey: __('Label'),
     key: 'label',
     type: 'array',
     param: 'name[]',
@@ -47,6 +53,7 @@ export const tokenKeys = [
 if (gon.current_user_id) {
   // Appending tokenkeys only logged-in
   tokenKeys.push({
+    formattedKey: __('My-Reaction'),
     key: 'my-reaction',
     type: 'string',
     param: 'emoji',
@@ -58,6 +65,7 @@ if (gon.current_user_id) {
 
 export const alternativeTokenKeys = [
   {
+    formattedKey: __('Label'),
     key: 'label',
     type: 'string',
     param: 'name',
@@ -65,68 +73,88 @@ export const alternativeTokenKeys = [
   },
 ];
 
-export const conditions = [
-  {
-    url: 'assignee_id=None',
-    tokenKey: 'assignee',
-    value: __('None'),
-  },
-  {
-    url: 'assignee_id=Any',
-    tokenKey: 'assignee',
-    value: __('Any'),
-  },
-  {
-    url: 'milestone_title=None',
-    tokenKey: 'milestone',
-    value: __('None'),
-  },
-  {
-    url: 'milestone_title=Any',
-    tokenKey: 'milestone',
-    value: __('Any'),
-  },
-  {
-    url: 'milestone_title=%23upcoming',
-    tokenKey: 'milestone',
-    value: __('Upcoming'),
-  },
-  {
-    url: 'milestone_title=%23started',
-    tokenKey: 'milestone',
-    value: __('Started'),
-  },
-  {
-    url: 'release_tag=None',
-    tokenKey: 'release',
-    value: __('None'),
-  },
-  {
-    url: 'release_tag=Any',
-    tokenKey: 'release',
-    value: __('Any'),
-  },
-  {
-    url: 'label_name[]=None',
-    tokenKey: 'label',
-    value: __('None'),
-  },
-  {
-    url: 'label_name[]=Any',
-    tokenKey: 'label',
-    value: __('Any'),
-  },
-  {
-    url: 'my_reaction_emoji=None',
-    tokenKey: 'my-reaction',
-    value: __('None'),
-  },
-  {
-    url: 'my_reaction_emoji=Any',
-    tokenKey: 'my-reaction',
-    value: __('Any'),
-  },
-];
+export const conditions = flatten(
+  [
+    {
+      url: 'assignee_id=None',
+      tokenKey: 'assignee',
+      value: __('None'),
+    },
+    {
+      url: 'assignee_id=Any',
+      tokenKey: 'assignee',
+      value: __('Any'),
+    },
+    {
+      url: 'milestone_title=None',
+      tokenKey: 'milestone',
+      value: __('None'),
+    },
+    {
+      url: 'milestone_title=Any',
+      tokenKey: 'milestone',
+      value: __('Any'),
+    },
+    {
+      url: 'milestone_title=%23upcoming',
+      tokenKey: 'milestone',
+      value: __('Upcoming'),
+    },
+    {
+      url: 'milestone_title=%23started',
+      tokenKey: 'milestone',
+      value: __('Started'),
+    },
+    {
+      url: 'release_tag=None',
+      tokenKey: 'release',
+      value: __('None'),
+    },
+    {
+      url: 'release_tag=Any',
+      tokenKey: 'release',
+      value: __('Any'),
+    },
+    {
+      url: 'label_name[]=None',
+      tokenKey: 'label',
+      value: __('None'),
+    },
+    {
+      url: 'label_name[]=Any',
+      tokenKey: 'label',
+      value: __('Any'),
+    },
+    {
+      url: 'my_reaction_emoji=None',
+      tokenKey: 'my-reaction',
+      value: __('None'),
+    },
+    {
+      url: 'my_reaction_emoji=Any',
+      tokenKey: 'my-reaction',
+      value: __('Any'),
+    },
+  ].map(condition => {
+    const [keyPart, valuePart] = condition.url.split('=');
+    const hasBrackets = keyPart.includes('[]');
+
+    const notEqualUrl = `not[${hasBrackets ? keyPart.slice(0, -2) : keyPart}]${
+      hasBrackets ? '[]' : ''
+    }=${valuePart}`;
+    return [
+      {
+        ...condition,
+        operator: '=',
+      },
+      {
+        ...condition,
+        operator: '!=',
+        url: notEqualUrl,
+      },
+    ];
+  }),
+);
 
 const IssuableFilteredSearchTokenKeys = new FilteredSearchTokenKeys(
   tokenKeys,

app/assets/javascripts/filtered_search/visual_token_value.js

@@ -9,9 +9,10 @@ import UsersCache from '~/lib/utils/users_cache';
 import { __ } from '~/locale';
 
 export default class VisualTokenValue {
-  constructor(tokenValue, tokenType) {
+  constructor(tokenValue, tokenType, tokenOperator) {
     this.tokenValue = tokenValue;
     this.tokenType = tokenType;
+    this.tokenOperator = tokenOperator;
   }
 
   render(tokenValueContainer, tokenValueElement) {

app/assets/javascripts/lib/utils/keycodes.js

@@ -2,3 +2,4 @@ export const UP_KEY_CODE = 38;
 export const DOWN_KEY_CODE = 40;
 export const ENTER_KEY_CODE = 13;
 export const ESC_KEY_CODE = 27;
+export const BACKSPACE_KEY_CODE = 8;

app/assets/stylesheets/framework/filters.scss

@@ -88,6 +88,7 @@
   }
 
   .name,
+  .operator,
   .value {
     display: inline-block;
     padding: 2px 7px;
@@ -101,6 +102,12 @@
     text-transform: capitalize;
   }
 
+  .operator {
+    background-color: $white-normal;
+    color: $filter-value-text-color;
+    margin-right: 1px;
+  }
+
   .value-container {
     display: flex;
     align-items: center;
@@ -147,6 +154,10 @@
     background-color: $filter-name-selected-color;
   }
 
+  .operator {
+    box-shadow: inset 0 0 0 100px $filtered-search-term-shadow-color;
+  }
+
   .value-container {
     box-shadow: inset 0 0 0 100px $filtered-search-term-shadow-color;
   }
@@ -260,6 +271,11 @@
     max-width: none;
     min-width: 100%;
   }
+
+  .btn-helptext {
+    margin-left: auto;
+    color: var(--gray);
+  }
 }
 
 .filtered-search-history-dropdown-wrapper {

app/controllers/boards/issues_controller.rb

@@ -90,7 +90,7 @@ module Boards
     end
 
     def filter_params
-      params.merge(board_id: params[:board_id], id: params[:list_id])
+      params.permit(*Boards::Issues::ListService.valid_params).merge(board_id: params[:board_id], id: params[:list_id])
         .reject { |_, value| value.nil? }
     end
 

app/finders/issuable_finder.rb

@@ -87,7 +87,7 @@ class IssuableFinder
     end
 
     def valid_params
-      @valid_params ||= scalar_params + [array_params] + [{ not: [] }]
+      @valid_params ||= scalar_params + [array_params.merge(not: {})]
     end
   end
 

app/services/boards/issues/list_service.rb

@@ -5,6 +5,10 @@ module Boards
     class ListService < Boards::BaseService
       include Gitlab::Utils::StrongMemoize
 
+      def self.valid_params
+        IssuesFinder.valid_params
+      end
+
       def execute
         fetch_issues.order_by_position_and_priority
       end

app/views/admin/runners/index.html.haml

@@ -57,24 +57,22 @@
                 %li.input-token
                   %input.form-control.filtered-search{ search_filter_input_options('runners') }
             #js-dropdown-hint.filtered-search-input-dropdown-menu.dropdown-menu.hint-dropdown
-              %ul{ data: { dropdown: true } }
-                %li.filter-dropdown-item{ data: { action: 'submit' } }
-                  = button_tag class: %w[btn btn-link] do
-                    = sprite_icon('search')
-                    %span
-                      = _('Press Enter or click to search')
               %ul.filter-dropdown{ data: { dynamic: true, dropdown: true } }
-                %li.filter-dropdown-item
+                %li.filter-dropdown-item{ data: {hint: "#{'{{hint}}'}", tag: "#{'{{tag}}'}", action: "#{'{{hint === \'search\' ? \'submit\' : \'\' }}'}" } }
                   = button_tag class: %w[btn btn-link] do
                     -# Encapsulate static class name `{{icon}}` inside #{} to bypass
                     -# haml lint's ClassAttributeWithStaticValue
                     %svg
                       %use{ 'xlink:href': "#{'{{icon}}'}" }
                     %span.js-filter-hint
-                      {{hint}}
-                    %span.js-filter-tag.dropdown-light-content
-                      {{tag}}
-
+                      {{formattedKey}}
+            #js-dropdown-operator.filtered-search-input-dropdown-menu.dropdown-menu
+              %ul.filter-dropdown{ data: { dropdown: true, dynamic: true } }
+                %li.filter-dropdown-item{ data: { value: "{{ title }}" } }
+                  %button.btn.btn-link{ type: 'button' }
+                    {{ title }}
+                    %span.btn-helptext
+                      {{ help }}
             #js-dropdown-admin-runner-status.filtered-search-input-dropdown-menu.dropdown-menu
               %ul{ data: { dropdown: true } }
                 - Ci::Runner::AVAILABLE_STATUSES.each do |status|

app/views/shared/issuable/_search_bar.html.haml

@@ -30,23 +30,22 @@
                   %li.input-token
                     %input.form-control.filtered-search{ search_filter_input_options(type) }
               #js-dropdown-hint.filtered-search-input-dropdown-menu.dropdown-menu.hint-dropdown
-                %ul{ data: { dropdown: true } }
-                  %li.filter-dropdown-item{ data: { action: 'submit' } }
-                    %button.btn.btn-link{ type: 'button' }
-                      = sprite_icon('search')
-                      %span
-                        = _('Press Enter or click to search')
                 %ul.filter-dropdown{ data: { dynamic: true, dropdown: true } }
-                  %li.filter-dropdown-item
+                  %li.filter-dropdown-item{ data: {hint: "#{'{{hint}}'}", tag: "#{'{{tag}}'}", action: "#{'{{hint === \'search\' ? \'submit\' : \'\' }}'}" } }
                     %button.btn.btn-link{ type: 'button' }
                       -# Encapsulate static class name `{{icon}}` inside #{} to bypass
                       -# haml lint's ClassAttributeWithStaticValue
                       %svg
                         %use{ 'xlink:href': "#{'{{icon}}'}" }
                       %span.js-filter-hint
-                        {{hint}}
-                      %span.js-filter-tag.dropdown-light-content
-                        {{tag}}
+                        {{formattedKey}}
+              #js-dropdown-operator.filtered-search-input-dropdown-menu.dropdown-menu
+                %ul.filter-dropdown{ data: { dropdown: true, dynamic: true } }
+                  %li.filter-dropdown-item{ data: { value: "{{ title }}" } }
+                    %button.btn.btn-link{ type: 'button' }
+                      {{ title }}
+                      %span.btn-helptext
+                        {{ help }}
               #js-dropdown-author.filtered-search-input-dropdown-menu.dropdown-menu
                 - if current_user
                   %ul{ data: { dropdown: true } }

changelogs/unreleased/19011-add-operator-dropdown.yml

+---
+title: Add support for operator in filter bar
+merge_request: 19011
+author:
+type: added

ee/app/assets/javascripts/analytics/productivity_analytics/productivity_analytics_filtered_search_token_keys.js

+import { __ } from '~/locale';
 import FilteredSearchTokenKeys from '~/filtered_search/filtered_search_token_keys';
 
 const tokenKeys = [
   {
+    formattedKey: __('Author'),
     key: 'author',
     type: 'string',
     param: 'username',
@@ -10,6 +12,7 @@ const tokenKeys = [
     tag: '@author',
   },
   {
+    formattedKey: __('Milestone'),
     key: 'milestone',
     type: 'string',
     param: 'title',
@@ -18,6 +21,7 @@ const tokenKeys = [
     tag: '%milestone',
   },
   {
+    formattedKey: __('Label'),
     key: 'label',
     type: 'array',
     param: 'name[]',

ee/app/assets/javascripts/filtered_search/add_extra_tokens_for_merge_requests.js

@@ -9,15 +9,30 @@ export default IssuableTokenKeys => {
       url: 'approver_usernames[]=None',
       tokenKey: 'approver',
       value: __('None'),
+      operator: '=',
+    },
+    {
+      url: 'not[approver_usernames][]=None',
+      tokenKey: 'approver',
+      value: __('None'),
+      operator: '!=',
     },
     {
       url: 'approver_usernames[]=Any',
       tokenKey: 'approver',
       value: __('Any'),
+      operator: '=',
+    },
+    {
+      url: 'not[approver_usernames][]=Any',
+      tokenKey: 'approver',
+      value: __('Any'),
+      operator: '!=',
     },
   ];
 
   const approversToken = {
+    formattedKey: __('Approver'),
     key: 'approver',
     type: 'array',
     param: 'usernames[]',

ee/app/assets/javascripts/filtered_search/filtered_search_token_keys_epics.js

+import { __ } from '~/locale';
 import FilteredSearchTokenKeys from '~/filtered_search/filtered_search_token_keys';
 
 const tokenKeys = [
   {
+    formattedKey: __('Author'),
     key: 'author',
     type: 'string',
     param: 'username',
@@ -10,6 +12,7 @@ const tokenKeys = [
     tag: '@author',
   },
   {
+    formattedKey: __('Label'),
     key: 'label',
     type: 'array',
     param: 'name[]',
@@ -21,6 +24,7 @@ const tokenKeys = [
 
 const alternativeTokenKeys = [
   {
+    formattedKey: __('Label'),
     key: 'label',
     type: 'string',
     param: 'name',
@@ -33,6 +37,13 @@ const conditions = [
     url: 'label_name[]=No+Label',
     tokenKey: 'label',
     value: 'none',
+    operator: '=',
+  },
+  {
+    url: 'not[label_name][]=No+Label',
+    tokenKey: 'label',
+    value: 'none',
+    operator: '!=',
   },
 ];
 

ee/app/assets/javascripts/filtered_search/issuable_filtered_search_token_keys.js

@@ -7,6 +7,7 @@ import {
 import { __ } from '~/locale';
 
 const weightTokenKey = {
+  formattedKey: __('Weight'),
   key: 'weight',
   type: 'string',
   param: '',
@@ -18,11 +19,25 @@ const weightTokenKey = {
 const weightConditions = [
   {
     url: 'weight=None',
+    operator: '=',
     tokenKey: 'weight',
     value: __('None'),
   },
   {
     url: 'weight=Any',
+    operator: '=',
+    tokenKey: 'weight',
+    value: __('Any'),
+  },
+  {
+    url: 'not[weight]=None',
+    operator: '!=',
+    tokenKey: 'weight',
+    value: __('None'),
+  },
+  {
+    url: 'not[weight]=Any',
+    operator: '!=',
     tokenKey: 'weight',
     value: __('Any'),
   },

ee/app/views/shared/epic/_search_bar.html.haml

@@ -42,23 +42,22 @@
                 %li.input-token
                   %input.form-control.filtered-search{ epic_endpoint_query_params(search_filter_input_options(type)) }
             #js-dropdown-hint.filtered-search-input-dropdown-menu.dropdown-menu.hint-dropdown
-              %ul{ data: { dropdown: true } }
-                %li.filter-dropdown-item{ data: { action: 'submit' } }
-                  %button.btn.btn-link{ type: 'button' }
-                    = sprite_icon('search')
-                    %span
-                      Press Enter or click to search
               %ul.filter-dropdown{ data: { dynamic: true, dropdown: true } }
-                %li.filter-dropdown-item
+                %li.filter-dropdown-item{ data: {hint: "#{'{{hint}}'}", tag: "#{'{{tag}}'}", action: "#{'{{hint === \'search\' ? \'submit\' : \'\' }}'}" } }
                   %button.btn.btn-link{ type: 'button' }
                     -# Encapsulate static class name `{{icon}}` inside #{} to bypass
                     -# haml lint's ClassAttributeWithStaticValue
                     %svg
                       %use{ 'xlink:href': "#{'{{icon}}'}" }
                     %span.js-filter-hint
-                      {{hint}}
-                    %span.js-filter-tag.dropdown-light-content
-                      {{tag}}
+                      {{formattedKey}}
+            #js-dropdown-operator.filtered-search-input-dropdown-menu.dropdown-menu
+              %ul.filter-dropdown{ data: { dropdown: true, dynamic: true } }
+                %li.filter-dropdown-item{ data: { value: "{{ title }}" } }
+                  %button.btn.btn-link{ type: 'button' }
+                    {{ title }}
+                    %span.btn-helptext
+                      {{ help }}
             #js-dropdown-author.filtered-search-input-dropdown-menu.dropdown-menu
               - if current_user
                 %ul{ data: { dropdown: true } }

ee/spec/features/boards/add_issues_modal_spec.rb

@@ -25,6 +25,6 @@ describe 'Issue Boards add issue modal', :js do
     wait_for_requests
     find('.add-issues-modal .filtered-search').click
 
-    expect(page.find('.filter-dropdown')).to have_content 'weight'
+    expect(page.find('.filter-dropdown')).to have_content 'Weight'
   end
 end

ee/spec/features/boards/scoped_issue_board_spec.rb

@@ -132,8 +132,8 @@ describe 'Scoped issue boards', :js do
           filtered_search.click
 
           page.within('#js-dropdown-hint') do
-            expect(page).to have_content('label')
-            expect(page).not_to have_content('assignee')
+            expect(page).to have_content('Label')
+            expect(page).not_to have_content('Assignee')
           end
         end
 
@@ -164,8 +164,8 @@ describe 'Scoped issue boards', :js do
           filtered_search.click
 
           page.within('#js-dropdown-hint') do
-            expect(page).to have_content('label')
-            expect(page).not_to have_content('weight')
+            expect(page).to have_content('Label')
+            expect(page).not_to have_content('Weight')
           end
         end
 
@@ -244,8 +244,8 @@ describe 'Scoped issue boards', :js do
           filtered_search.click
 
           page.within('#js-dropdown-hint') do
-            expect(page).to have_content('label')
-            expect(page).not_to have_content('milestone')
+            expect(page).to have_content('Label')
+            expect(page).not_to have_content('Milestone')
           end
         end
       end
@@ -293,7 +293,7 @@ describe 'Scoped issue boards', :js do
 
           update_board_label(label_title)
 
-          input_filtered_search("label:~#{label_2_title}")
+          input_filtered_search("label=~#{label_2_title}")
 
           expect(page).to have_selector('.board-card', count: 0)
         end
@@ -338,8 +338,8 @@ describe 'Scoped issue boards', :js do
           filtered_search.click
 
           page.within('#js-dropdown-hint') do
-            expect(page).to have_content('label')
-            expect(page).not_to have_content('assignee')
+            expect(page).to have_content('Label')
+            expect(page).not_to have_content('Assignee')
           end
         end
       end
@@ -365,8 +365,8 @@ describe 'Scoped issue boards', :js do
           filtered_search.click
 
           page.within('#js-dropdown-hint') do
-            expect(page).to have_content('label')
-            expect(page).not_to have_content('weight')
+            expect(page).to have_content('Label')
+            expect(page).not_to have_content('Weight')
           end
         end
       end

ee/spec/features/epics/filtered_search/visual_tokens_spec.rb

@@ -24,7 +24,7 @@ describe 'epics list', :js do
 
   context 'editing author token' do
     before do
-      input_filtered_search('author:@root', submit: false)
+      input_filtered_search('author=@root', submit: false)
       first('.tokens-container .filtered-search-token').click
     end
 
@@ -52,7 +52,7 @@ describe 'epics list', :js do
 
   context 'editing label token' do
     before do
-      input_filtered_search("label:~#{label.title}", submit: false)
+      input_filtered_search("label=~#{label.title}", submit: false)
       first('.tokens-container .filtered-search-token').click
     end
 

ee/spec/features/issues/filtered_search/dropdown_weight_spec.rb

@@ -21,7 +21,7 @@ describe 'Dropdown weight', :js do
 
   describe 'behavior' do
     it 'loads all the weights when opened' do
-      input_filtered_search('weight:', submit: false, extra_space: false)
+      input_filtered_search('weight=', submit: false, extra_space: false)
 
       expect_filtered_search_dropdown_results(filter_dropdown, 21)
     end

ee/spec/features/issues/filtered_search/filter_issues_weight_spec.rb

@@ -40,7 +40,7 @@ describe 'Filter issues weight', :js do
 
   describe 'only weight' do
     it 'filter issues by searched weight' do
-      input_filtered_search('weight:1')
+      input_filtered_search('weight=1')
 
       expect_issues_list_count(1)
     end
@@ -48,7 +48,7 @@ describe 'Filter issues weight', :js do
 
   describe 'weight with other filters' do
     it 'filters issues by searched weight and text' do
-      search = "weight:2 bug"
+      search = "weight=2 bug"
       input_filtered_search(search)
 
       expect_issues_list_count(1)
@@ -56,7 +56,7 @@ describe 'Filter issues weight', :js do
     end
 
     it 'filters issues by searched weight, author and text' do
-      search = "weight:2 author:@root bug"
+      search = "weight=2 author=@root bug"
       input_filtered_search(search)
 
       expect_issues_list_count(1)
@@ -64,7 +64,7 @@ describe 'Filter issues weight', :js do
     end
 
     it 'filters issues by searched weight, author, assignee and text' do
-      search = "weight:2 author:@root assignee:@root bug"
+      search = "weight=2 author=@root assignee=@root bug"
       input_filtered_search(search)
 
       expect_issues_list_count(1)
@@ -72,7 +72,7 @@ describe 'Filter issues weight', :js do
     end
 
     it 'filters issues by searched weight, author, assignee, label and text' do
-      search = "weight:2 author:@root assignee:@root label:~urgent bug"
+      search = "weight=2 author=@root assignee=@root label=~urgent bug"
       input_filtered_search(search)
 
       expect_issues_list_count(1)
@@ -80,7 +80,7 @@ describe 'Filter issues weight', :js do
     end
 
     it 'filters issues by searched weight, milestone and text' do
-      search = "weight:2 milestone:%version1 bug"
+      search = "weight=2 milestone=%version1 bug"
       input_filtered_search(search)
 
       expect_issues_list_count(1)

ee/spec/features/merge_requests/user_filters_by_approvers_spec.rb

@@ -32,7 +32,7 @@ describe 'Merge Requests > User filters by approvers', :js do
 
   context 'filtering by approver:none' do
     it 'applies the filter' do
-      input_filtered_search('approver:none')
+      input_filtered_search('approver=none')
 
       expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
 
@@ -45,7 +45,7 @@ describe 'Merge Requests > User filters by approvers', :js do
 
   context 'filtering by approver:any' do
     it 'applies the filter' do
-      input_filtered_search('approver:any')
+      input_filtered_search('approver=any')
 
       expect(page).to have_issuable_counts(open: 3, closed: 0, all: 3)
 
@@ -58,7 +58,7 @@ describe 'Merge Requests > User filters by approvers', :js do
 
   context 'filtering by approver:@username' do
     it 'applies the filter' do
-      input_filtered_search("approver:@#{first_user.username}")
+      input_filtered_search("approver=@#{first_user.username}")
 
       expect(page).to have_issuable_counts(open: 2, closed: 0, all: 2)
 
@@ -71,7 +71,7 @@ describe 'Merge Requests > User filters by approvers', :js do
 
   context 'filtering by multiple approvers' do
     it 'applies the filter' do
-      input_filtered_search("approver:@#{first_user.username} approver:@#{user.username}")
+      input_filtered_search("approver=@#{first_user.username} approver=@#{user.username}")
 
       expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
 
@@ -84,7 +84,7 @@ describe 'Merge Requests > User filters by approvers', :js do
 
   context 'filtering by an approver from a group' do
     it 'applies the filter' do
-      input_filtered_search("approver:@#{group_user.username}")
+      input_filtered_search("approver=@#{group_user.username}")
 
       expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
 

ee/spec/javascripts/filtered_search/issues_filtered_search_token_keys_spec.js

@@ -2,6 +2,7 @@ import IssuableFilteredSearchTokenKeys from 'ee/filtered_search/issuable_filtere
 
 describe('Issues Filtered Search Token Keys (EE)', () => {
   const weightTokenKey = {
+    formattedKey: 'Weight',
     key: 'weight',
     type: 'string',
     param: '',
@@ -41,7 +42,7 @@ describe('Issues Filtered Search Token Keys (EE)', () => {
     it('should return weightConditions as part of conditions', () => {
       const weightConditions = conditions.filter(c => c.tokenKey === 'weight');
 
-      expect(weightConditions.length).toBe(2);
+      expect(weightConditions.length).toBe(4);
     });
   });
 
@@ -91,6 +92,7 @@ describe('Issues Filtered Search Token Keys (EE)', () => {
       const weightConditions = conditions.filter(c => c.tokenKey === 'weight');
       const result = IssuableFilteredSearchTokenKeys.searchByConditionKeyValue(
         weightConditions[0].tokenKey,
+        weightConditions[0].operator,
         weightConditions[0].value,
       );
 

locale/gitlab.pot

@@ -2032,6 +2032,9 @@ msgstr ""
 msgid "Approved the current merge request."
 msgstr ""
 
+msgid "Approver"
+msgstr ""
+
 msgid "Apr"
 msgstr ""
 
@@ -9942,6 +9945,12 @@ msgstr ""
 msgid "Invocations"
 msgstr ""
 
+msgid "Is"
+msgstr ""
+
+msgid "Is not"
+msgstr ""
+
 msgid "Is using license seat:"
 msgstr ""
 
@@ -11672,6 +11681,9 @@ msgstr ""
 msgid "Multiple uploaders found: %{uploader_types}"
 msgstr ""
 
+msgid "My-Reaction"
+msgstr ""
+
 msgid "Name"
 msgstr ""
 
@@ -13299,9 +13311,6 @@ msgstr ""
 msgid "Press %{key}-C to copy"
 msgstr ""
 
-msgid "Press Enter or click to search"
-msgstr ""
-
 msgid "Prevent adding new members to project membership within this group"
 msgstr ""
 
@@ -15706,6 +15715,9 @@ msgstr ""
 msgid "Search for projects, issues, etc."
 msgstr ""
 
+msgid "Search for this text"
+msgstr ""
+
 msgid "Search forks"
 msgstr ""
 
@@ -17713,6 +17725,9 @@ msgstr ""
 msgid "Target branch"
 msgstr ""
 
+msgid "Target-Branch"
+msgstr ""
+
 msgid "Team"
 msgstr ""
 
@@ -20279,6 +20294,9 @@ msgstr ""
 msgid "Vulnerability|Severity"
 msgstr ""
 
+msgid "WIP"
+msgstr ""
+
 msgid "Wait for the file to load to copy its contents"
 msgstr ""
 

spec/features/admin/admin_runners_spec.rb

@@ -57,7 +57,7 @@ describe "Admin Runners" do
           expect(page).to have_content 'runner-active'
           expect(page).to have_content 'runner-paused'
 
-          input_filtered_search_keys('status:active')
+          input_filtered_search_keys('status=active')
           expect(page).to have_content 'runner-active'
           expect(page).not_to have_content 'runner-paused'
         end
@@ -68,7 +68,7 @@ describe "Admin Runners" do
 
           visit admin_runners_path
 
-          input_filtered_search_keys('status:offline')
+          input_filtered_search_keys('status=offline')
 
           expect(page).not_to have_content 'runner-active'
           expect(page).not_to have_content 'runner-paused'
@@ -83,12 +83,12 @@ describe "Admin Runners" do
 
           visit admin_runners_path
 
-          input_filtered_search_keys('status:active')
+          input_filtered_search_keys('status=active')
           expect(page).to have_content 'runner-a-1'
           expect(page).to have_content 'runner-b-1'
           expect(page).not_to have_content 'runner-a-2'
 
-          input_filtered_search_keys('status:active runner-a')
+          input_filtered_search_keys('status=active runner-a')
           expect(page).to have_content 'runner-a-1'
           expect(page).not_to have_content 'runner-b-1'
           expect(page).not_to have_content 'runner-a-2'
@@ -105,7 +105,7 @@ describe "Admin Runners" do
           expect(page).to have_content 'runner-project'
           expect(page).to have_content 'runner-group'
 
-          input_filtered_search_keys('type:project_type')
+          input_filtered_search_keys('type=project_type')
           expect(page).to have_content 'runner-project'
           expect(page).not_to have_content 'runner-group'
         end
@@ -116,7 +116,7 @@ describe "Admin Runners" do
 
           visit admin_runners_path
 
-          input_filtered_search_keys('type:instance_type')
+          input_filtered_search_keys('type=instance_type')
 
           expect(page).not_to have_content 'runner-project'
           expect(page).not_to have_content 'runner-group'
@@ -131,12 +131,12 @@ describe "Admin Runners" do
 
           visit admin_runners_path
 
-          input_filtered_search_keys('type:project_type')
+          input_filtered_search_keys('type=project_type')
           expect(page).to have_content 'runner-a-1'
           expect(page).to have_content 'runner-b-1'
           expect(page).not_to have_content 'runner-a-2'
 
-          input_filtered_search_keys('type:project_type runner-a')
+          input_filtered_search_keys('type=project_type runner-a')
           expect(page).to have_content 'runner-a-1'
           expect(page).not_to have_content 'runner-b-1'
           expect(page).not_to have_content 'runner-a-2'
@@ -153,7 +153,7 @@ describe "Admin Runners" do
           expect(page).to have_content 'runner-blue'
           expect(page).to have_content 'runner-red'
 
-          input_filtered_search_keys('tag:blue')
+          input_filtered_search_keys('tag=blue')
 
           expect(page).to have_content 'runner-blue'
           expect(page).not_to have_content 'runner-red'
@@ -165,7 +165,7 @@ describe "Admin Runners" do
 
           visit admin_runners_path
 
-          input_filtered_search_keys('tag:red')
+          input_filtered_search_keys('tag=red')
 
           expect(page).not_to have_content 'runner-blue'
           expect(page).not_to have_content 'runner-blue'
@@ -179,13 +179,13 @@ describe "Admin Runners" do
 
           visit admin_runners_path
 
-          input_filtered_search_keys('tag:blue')
+          input_filtered_search_keys('tag=blue')
 
           expect(page).to have_content 'runner-a-1'
           expect(page).to have_content 'runner-b-1'
           expect(page).not_to have_content 'runner-a-2'
 
-          input_filtered_search_keys('tag:blue runner-a')
+          input_filtered_search_keys('tag=blue runner-a')
 
           expect(page).to have_content 'runner-a-1'
           expect(page).not_to have_content 'runner-b-1'

spec/features/boards/boards_spec.rb

@@ -628,7 +628,7 @@ describe 'Issue Boards', :js do
   end
 
   def set_filter(type, text)
-    find('.filtered-search').native.send_keys("#{type}:#{text}")
+    find('.filtered-search').native.send_keys("#{type}=#{text}")
   end
 
   def submit_filter

spec/features/boards/modal_filter_spec.rb

@@ -211,7 +211,7 @@ describe 'Issue Boards add issue modal filtering', :js do
   end
 
   def set_filter(type, text = '')
-    find('.add-issues-modal .filtered-search').native.send_keys("#{type}:#{text}")
+    find('.add-issues-modal .filtered-search').native.send_keys("#{type}=#{text}")
   end
 
   def submit_filter

spec/features/dashboard/issues_filter_spec.rb

@@ -28,14 +28,14 @@ describe 'Dashboard Issues filtering', :js do
 
   context 'filtering by milestone' do
     it 'shows all issues with no milestone' do
-      input_filtered_search("milestone:none")
+      input_filtered_search("milestone=none")
 
       expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
       expect(page).to have_selector('.issue', count: 1)
     end
 
     it 'shows all issues with the selected milestone' do
-      input_filtered_search("milestone:%\"#{milestone.title}\"")
+      input_filtered_search("milestone=%\"#{milestone.title}\"")
 
       expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
       expect(page).to have_selector('.issue', count: 1)
@@ -63,7 +63,7 @@ describe 'Dashboard Issues filtering', :js do
     let!(:label_link) { create(:label_link, label: label, target: issue) }
 
     it 'shows all issues with the selected label' do
-      input_filtered_search("label:~#{label.title}")
+      input_filtered_search("label=~#{label.title}")
 
       page.within 'ul.content-list' do
         expect(page).to have_content issue.title

spec/features/dashboard/issues_spec.rb

@@ -30,7 +30,7 @@ RSpec.describe 'Dashboard Issues' do
 
     it 'shows issues when current user is author', :js do
       reset_filters
-      input_filtered_search("author:#{current_user.to_reference}")
+      input_filtered_search("author=#{current_user.to_reference}")
 
       expect(page).to have_content(authored_issue.title)
       expect(page).to have_content(authored_issue_on_public_project.title)

spec/features/dashboard/merge_requests_spec.rb

@@ -107,7 +107,7 @@ describe 'Dashboard Merge Requests' do
 
     it 'shows authored merge requests', :js do
       reset_filters
-      input_filtered_search("author:#{current_user.to_reference}")
+      input_filtered_search("author=#{current_user.to_reference}")
 
       expect(page).to have_content(authored_merge_request.title)
       expect(page).to have_content(authored_merge_request_from_fork.title)
@@ -120,7 +120,7 @@ describe 'Dashboard Merge Requests' do
 
     it 'shows labeled merge requests', :js do
       reset_filters
-      input_filtered_search("label:#{label.name}")
+      input_filtered_search("label=#{label.name}")
 
       expect(page).to have_content(labeled_merge_request.title)
 

spec/features/groups/issues_spec.rb

@@ -48,7 +48,7 @@ describe 'Group issues page' do
       let(:user2) { user_outside_group }
 
       it 'filters by only group users' do
-        filtered_search.set('assignee:')
+        filtered_search.set('assignee=')
 
         expect(find('#js-dropdown-assignee .filter-dropdown')).to have_content(user.name)
         expect(find('#js-dropdown-assignee .filter-dropdown')).not_to have_content(user2.name)

spec/features/groups/merge_requests_spec.rb

@@ -52,7 +52,7 @@ describe 'Group merge requests page' do
     let(:user2) { user_outside_group }
 
     it 'filters by assignee only group users' do
-      filtered_search.set('assignee:')
+      filtered_search.set('assignee=')
 
       expect(find('#js-dropdown-assignee .filter-dropdown')).to have_content(user.name)
       expect(find('#js-dropdown-assignee .filter-dropdown')).not_to have_content(user2.name)

spec/features/issues/filtered_search/dropdown_assignee_spec.rb

@@ -20,13 +20,13 @@ describe 'Dropdown assignee', :js do
 
   describe 'behavior' do
     it 'loads all the assignees when opened' do
-      input_filtered_search('assignee:', submit: false, extra_space: false)
+      input_filtered_search('assignee=', submit: false, extra_space: false)
 
       expect_filtered_search_dropdown_results(filter_dropdown, 2)
     end
 
     it 'shows current user at top of dropdown' do
-      input_filtered_search('assignee:', submit: false, extra_space: false)
+      input_filtered_search('assignee=', submit: false, extra_space: false)
 
       expect(filter_dropdown.first('.filter-dropdown-item')).to have_content(user.name)
     end
@@ -35,7 +35,7 @@ describe 'Dropdown assignee', :js do
   describe 'selecting from dropdown without Ajax call' do
     before do
       Gitlab::Testing::RequestBlockerMiddleware.block_requests!
-      input_filtered_search('assignee:', submit: false, extra_space: false)
+      input_filtered_search('assignee=', submit: false, extra_space: false)
     end
 
     after do

spec/features/issues/filtered_search/dropdown_author_spec.rb

@@ -20,13 +20,13 @@ describe 'Dropdown author', :js do
 
   describe 'behavior' do
     it 'loads all the authors when opened' do
-      input_filtered_search('author:', submit: false, extra_space: false)
+      input_filtered_search('author=', submit: false, extra_space: false)
 
       expect_filtered_search_dropdown_results(filter_dropdown, 2)
     end
 
     it 'shows current user at top of dropdown' do
-      input_filtered_search('author:', submit: false, extra_space: false)
+      input_filtered_search('author=', submit: false, extra_space: false)
 
       expect(filter_dropdown.first('.filter-dropdown-item')).to have_content(user.name)
     end
@@ -35,7 +35,7 @@ describe 'Dropdown author', :js do
   describe 'selecting from dropdown without Ajax call' do
     before do
       Gitlab::Testing::RequestBlockerMiddleware.block_requests!
-      input_filtered_search('author:', submit: false, extra_space: false)
+      input_filtered_search('author=', submit: false, extra_space: false)
     end
 
     after do

spec/features/issues/filtered_search/dropdown_base_spec.rb

@@ -27,14 +27,14 @@ describe 'Dropdown base', :js do
     it 'shows loading indicator when opened' do
       slow_requests do
         # We aren't using `input_filtered_search` because we want to see the loading indicator
-        filtered_search.set('assignee:')
+        filtered_search.set('assignee=')
 
         expect(page).to have_css("#{js_dropdown_assignee} .filter-dropdown-loading", visible: true)
       end
     end
 
     it 'hides loading indicator when loaded' do
-      input_filtered_search('assignee:', submit: false, extra_space: false)
+      input_filtered_search('assignee=', submit: false, extra_space: false)
 
       expect(find(js_dropdown_assignee)).not_to have_css('.filter-dropdown-loading')
     end
@@ -42,7 +42,7 @@ describe 'Dropdown base', :js do
 
   describe 'caching requests' do
     it 'caches requests after the first load' do
-      input_filtered_search('assignee:', submit: false, extra_space: false)
+      input_filtered_search('assignee=', submit: false, extra_space: false)
       initial_size = dropdown_assignee_size
 
       expect(initial_size).to be > 0
@@ -50,7 +50,7 @@ describe 'Dropdown base', :js do
       new_user = create(:user)
       project.add_maintainer(new_user)
       find('.filtered-search-box .clear-search').click
-      input_filtered_search('assignee:', submit: false, extra_space: false)
+      input_filtered_search('assignee=', submit: false, extra_space: false)
 
       expect(dropdown_assignee_size).to eq(initial_size)
     end

spec/features/issues/filtered_search/dropdown_emoji_spec.rb

@@ -26,8 +26,8 @@ describe 'Dropdown emoji', :js do
     end
 
     describe 'behavior' do
-      it 'does not open when the search bar has my-reaction:' do
-        filtered_search.set('my-reaction:')
+      it 'does not open when the search bar has my-reaction=' do
+        filtered_search.set('my-reaction=')
 
         expect(page).not_to have_css(js_dropdown_emoji)
       end
@@ -42,20 +42,20 @@ describe 'Dropdown emoji', :js do
     end
 
     describe 'behavior' do
-      it 'opens when the search bar has my-reaction:' do
-        filtered_search.set('my-reaction:')
+      it 'opens when the search bar has my-reaction=' do
+        filtered_search.set('my-reaction=')
 
         expect(page).to have_css(js_dropdown_emoji, visible: true)
       end
 
       it 'loads all the emojis when opened' do
-        input_filtered_search('my-reaction:', submit: false, extra_space: false)
+        input_filtered_search('my-reaction=', submit: false, extra_space: false)
 
         expect_filtered_search_dropdown_results(filter_dropdown, 3)
       end
 
       it 'shows the most populated emoji at top of dropdown' do
-        input_filtered_search('my-reaction:', submit: false, extra_space: false)
+        input_filtered_search('my-reaction=', submit: false, extra_space: false)
 
         expect(first("#{js_dropdown_emoji} .filter-dropdown li")).to have_content(award_emoji_star.name)
       end

spec/features/issues/filtered_search/dropdown_hint_spec.rb

@@ -9,11 +9,16 @@ describe 'Dropdown hint', :js do
   let!(:user) { create(:user) }
   let(:filtered_search) { find('.filtered-search') }
   let(:js_dropdown_hint) { '#js-dropdown-hint' }
+  let(:js_dropdown_operator) { '#js-dropdown-operator' }
 
   def click_hint(text)
     find('#js-dropdown-hint .filter-dropdown .filter-dropdown-item', text: text).click
   end
 
+  def click_operator(op)
+    find("#js-dropdown-operator .filter-dropdown .filter-dropdown-item[data-value='#{op}']").click
+  end
+
   before do
     project.add_maintainer(user)
     create(:issue, project: project)
@@ -27,7 +32,7 @@ describe 'Dropdown hint', :js do
 
     it 'does not exist my-reaction dropdown item' do
       expect(page).to have_css(js_dropdown_hint, visible: false)
-      expect(page).not_to have_content('my-reaction')
+      expect(page).not_to have_content('My-reaction')
     end
   end
 
@@ -54,15 +59,6 @@ describe 'Dropdown hint', :js do
     end
 
     describe 'filtering' do
-      it 'does not filter `Press Enter or click to search`' do
-        filtered_search.set('randomtext')
-
-        hint_dropdown = find(js_dropdown_hint)
-
-        expect(hint_dropdown).to have_content('Press Enter or click to search')
-        expect(hint_dropdown).to have_selector('.filter-dropdown .filter-dropdown-item', count: 0)
-      end
-
       it 'filters with text' do
         filtered_search.set('a')
 
@@ -76,21 +72,27 @@ describe 'Dropdown hint', :js do
       end
 
       it 'opens the token dropdown when you click on it' do
-        click_hint('author')
+        click_hint('Author')
 
         expect(page).to have_css(js_dropdown_hint, visible: false)
+        expect(page).to have_css(js_dropdown_operator, visible: true)
+
+        click_operator('=')
+
+        expect(page).to have_css(js_dropdown_hint, visible: false)
+        expect(page).to have_css(js_dropdown_operator, visible: false)
         expect(page).to have_css('#js-dropdown-author', visible: true)
-        expect_tokens([{ name: 'Author' }])
+        expect_tokens([{ name: 'Author', operator: '=' }])
         expect_filtered_search_input_empty
       end
     end
 
     describe 'reselecting from dropdown' do
       it 'reuses existing token text' do
-        filtered_search.send_keys('author:')
+        filtered_search.send_keys('author')
         filtered_search.send_keys(:backspace)
         filtered_search.send_keys(:backspace)
-        click_hint('author')
+        click_hint('Author')
 
         expect_tokens([{ name: 'Author' }])
         expect_filtered_search_input_empty

spec/features/issues/filtered_search/dropdown_label_spec.rb

@@ -21,7 +21,7 @@ describe 'Dropdown label', :js do
   describe 'behavior' do
     it 'loads all the labels when opened' do
       create(:label, project: project, title: 'bug-label')
-      filtered_search.set('label:')
+      filtered_search.set('label=')
 
       expect_filtered_search_dropdown_results(filter_dropdown, 1)
     end

spec/features/issues/filtered_search/dropdown_milestone_spec.rb

@@ -23,7 +23,7 @@ describe 'Dropdown milestone', :js do
 
   describe 'behavior' do
     before do
-      filtered_search.set('milestone:')
+      filtered_search.set('milestone=')
     end
 
     it 'loads all the milestones when opened' do

spec/features/issues/filtered_search/dropdown_release_spec.rb

@@ -23,7 +23,7 @@ describe 'Dropdown release', :js do
 
   describe 'behavior' do
     before do
-      filtered_search.set('release:')
+      filtered_search.set('release=')
     end
 
     it 'loads all the releases when opened' do

spec/features/issues/filtered_search/filter_issues_spec.rb

@@ -67,7 +67,7 @@ describe 'Filter issues', :js do
   it 'filters by all available tokens' do
     search_term = 'issue'
 
-    input_filtered_search("assignee:@#{user.username} author:@#{user.username} label:~#{caps_sensitive_label.title} milestone:%#{milestone.title} #{search_term}")
+    input_filtered_search("assignee=@#{user.username} author=@#{user.username} label=~#{caps_sensitive_label.title} milestone=%#{milestone.title} #{search_term}")
 
     wait_for_requests
 
@@ -84,7 +84,7 @@ describe 'Filter issues', :js do
   describe 'filter issues by author' do
     context 'only author' do
       it 'filters issues by searched author' do
-        input_filtered_search("author:@#{user.username}")
+        input_filtered_search("author=@#{user.username}")
 
         wait_for_requests
 
@@ -98,7 +98,7 @@ describe 'Filter issues', :js do
   describe 'filter issues by assignee' do
     context 'only assignee' do
       it 'filters issues by searched assignee' do
-        input_filtered_search("assignee:@#{user.username}")
+        input_filtered_search("assignee=@#{user.username}")
 
         wait_for_requests
 
@@ -108,7 +108,7 @@ describe 'Filter issues', :js do
       end
 
       it 'filters issues by no assignee' do
-        input_filtered_search('assignee:none')
+        input_filtered_search('assignee=none')
 
         expect_tokens([assignee_token('None')])
         expect_issues_list_count(3)
@@ -122,7 +122,7 @@ describe 'Filter issues', :js do
       it 'filters issues by multiple assignees' do
         create(:issue, project: project, author: user, assignees: [user2, user])
 
-        input_filtered_search("assignee:@#{user.username} assignee:@#{user2.username}")
+        input_filtered_search("assignee=@#{user.username} assignee=@#{user2.username}")
 
         expect_tokens([
           assignee_token(user.name),
@@ -138,15 +138,31 @@ describe 'Filter issues', :js do
   describe 'filter issues by label' do
     context 'only label' do
       it 'filters issues by searched label' do
-        input_filtered_search("label:~#{bug_label.title}")
+        input_filtered_search("label=~#{bug_label.title}")
 
         expect_tokens([label_token(bug_label.title)])
         expect_issues_list_count(2)
         expect_filtered_search_input_empty
       end
 
+      it 'filters issues not containing searched label' do
+        input_filtered_search("label!=~#{bug_label.title}")
+
+        expect_tokens([label_token(bug_label.title)])
+        expect_issues_list_count(6)
+        expect_filtered_search_input_empty
+      end
+
+      it 'filters issues by no label' do
+        input_filtered_search('label=none')
+
+        expect_tokens([label_token('None', false)])
+        expect_issues_list_count(4)
+        expect_filtered_search_input_empty
+      end
+
       it 'filters issues by no label' do
-        input_filtered_search('label:none')
+        input_filtered_search('label!=none')
 
         expect_tokens([label_token('None', false)])
         expect_issues_list_count(4)
@@ -154,7 +170,18 @@ describe 'Filter issues', :js do
       end
 
       it 'filters issues by multiple labels' do
-        input_filtered_search("label:~#{bug_label.title} label:~#{caps_sensitive_label.title}")
+        input_filtered_search("label=~#{bug_label.title} label=~#{caps_sensitive_label.title}")
+
+        expect_tokens([
+          label_token(bug_label.title),
+          label_token(caps_sensitive_label.title)
+        ])
+        expect_issues_list_count(1)
+        expect_filtered_search_input_empty
+      end
+
+      it 'filters issues by multiple labels with not operator' do
+        input_filtered_search("label!=~#{bug_label.title} label=~#{caps_sensitive_label.title}")
 
         expect_tokens([
           label_token(bug_label.title),
@@ -169,22 +196,42 @@ describe 'Filter issues', :js do
         special_issue = create(:issue, title: "Issue with special character label", project: project)
         special_issue.labels << special_label
 
-        input_filtered_search("label:~#{special_label.title}")
+        input_filtered_search("label=~#{special_label.title}")
 
         expect_tokens([label_token(special_label.title)])
         expect_issues_list_count(1)
         expect_filtered_search_input_empty
       end
 
+      it 'filters issues by label not containing special characters' do
+        special_label = create(:label, project: project, title: '!@#{$%^&*()-+[]<>?/:{}|\}')
+        special_issue = create(:issue, title: "Issue with special character label", project: project)
+        special_issue.labels << special_label
+
+        input_filtered_search("label!=~#{special_label.title}")
+
+        expect_tokens([label_token(special_label.title)])
+        expect_issues_list_count(8)
+        expect_filtered_search_input_empty
+      end
+
       it 'does not show issues for unused labels' do
         new_label = create(:label, project: project, title: 'new_label')
 
-        input_filtered_search("label:~#{new_label.title}")
+        input_filtered_search("label=~#{new_label.title}")
 
         expect_tokens([label_token(new_label.title)])
         expect_no_issues_list
         expect_filtered_search_input_empty
       end
+
+      it 'does show issues for bug label' do
+        input_filtered_search("label!=~#{bug_label.title}")
+
+        expect_tokens([label_token(bug_label.title)])
+        expect_issues_list_count(6)
+        expect_filtered_search_input_empty
+      end
     end
 
     context 'label with multiple words' do
@@ -193,7 +240,7 @@ describe 'Filter issues', :js do
         special_multiple_issue = create(:issue, title: "Issue with special character multiple words label", project: project)
         special_multiple_issue.labels << special_multiple_label
 
-        input_filtered_search("label:~'#{special_multiple_label.title}'")
+        input_filtered_search("label=~'#{special_multiple_label.title}'")
 
         # Check for search results (which makes sure that the page has changed)
         expect_issues_list_count(1)
@@ -205,7 +252,7 @@ describe 'Filter issues', :js do
       end
 
       it 'single quotes' do
-        input_filtered_search("label:~'#{multiple_words_label.title}'")
+        input_filtered_search("label=~'#{multiple_words_label.title}'")
 
         expect_issues_list_count(1)
         expect_tokens([label_token("\"#{multiple_words_label.title}\"")])
@@ -213,7 +260,7 @@ describe 'Filter issues', :js do
       end
 
       it 'double quotes' do
-        input_filtered_search("label:~\"#{multiple_words_label.title}\"")
+        input_filtered_search("label=~\"#{multiple_words_label.title}\"")
 
         expect_tokens([label_token("\"#{multiple_words_label.title}\"")])
         expect_issues_list_count(1)
@@ -225,7 +272,7 @@ describe 'Filter issues', :js do
         double_quotes_label_issue = create(:issue, title: "Issue with double quotes label", project: project)
         double_quotes_label_issue.labels << double_quotes_label
 
-        input_filtered_search("label:~'#{double_quotes_label.title}'")
+        input_filtered_search("label=~'#{double_quotes_label.title}'")
 
         expect_tokens([label_token("'#{double_quotes_label.title}'")])
         expect_issues_list_count(1)
@@ -237,7 +284,7 @@ describe 'Filter issues', :js do
         single_quotes_label_issue = create(:issue, title: "Issue with single quotes label", project: project)
         single_quotes_label_issue.labels << single_quotes_label
 
-        input_filtered_search("label:~\"#{single_quotes_label.title}\"")
+        input_filtered_search("label=~\"#{single_quotes_label.title}\"")
 
         expect_tokens([label_token("\"#{single_quotes_label.title}\"")])
         expect_issues_list_count(1)
@@ -249,7 +296,7 @@ describe 'Filter issues', :js do
       it 'filters issues by searched label, label2, author, assignee, milestone and text' do
         search_term = 'bug'
 
-        input_filtered_search("label:~#{bug_label.title} label:~#{caps_sensitive_label.title} author:@#{user.username} assignee:@#{user.username} milestone:%#{milestone.title} #{search_term}")
+        input_filtered_search("label=~#{bug_label.title} label=~#{caps_sensitive_label.title} author=@#{user.username} assignee=@#{user.username} milestone=%#{milestone.title} #{search_term}")
 
         wait_for_requests
 
@@ -263,6 +310,24 @@ describe 'Filter issues', :js do
         expect_issues_list_count(1)
         expect_filtered_search_input(search_term)
       end
+
+      it 'filters issues by searched label, label2, author, assignee, not included in a milestone' do
+        search_term = 'bug'
+
+        input_filtered_search("label=~#{bug_label.title} label=~#{caps_sensitive_label.title} author=@#{user.username} assignee=@#{user.username} milestone!=%#{milestone.title} #{search_term}")
+
+        wait_for_requests
+
+        expect_tokens([
+          label_token(bug_label.title),
+          label_token(caps_sensitive_label.title),
+          author_token(user.name),
+          assignee_token(user.name),
+          milestone_token(milestone.title, false, '!=')
+        ])
+        expect_issues_list_count(0)
+        expect_filtered_search_input(search_term)
+      end
     end
 
     context 'issue label clicked' do
@@ -279,7 +344,7 @@ describe 'Filter issues', :js do
   describe 'filter issues by milestone' do
     context 'only milestone' do
       it 'filters issues by searched milestone' do
-        input_filtered_search("milestone:%#{milestone.title}")
+        input_filtered_search("milestone=%#{milestone.title}")
 
         expect_tokens([milestone_token(milestone.title)])
         expect_issues_list_count(5)
@@ -287,53 +352,102 @@ describe 'Filter issues', :js do
       end
 
       it 'filters issues by no milestone' do
-        input_filtered_search("milestone:none")
+        input_filtered_search("milestone=none")
 
         expect_tokens([milestone_token('None', false)])
         expect_issues_list_count(3)
         expect_filtered_search_input_empty
       end
 
+      it 'filters issues by negation of no milestone' do
+        input_filtered_search("milestone!=none ")
+
+        expect_tokens([milestone_token('None', false, '!=')])
+        expect_issues_list_count(5)
+        expect_filtered_search_input_empty
+      end
+
       it 'filters issues by upcoming milestones' do
         create(:milestone, project: project, due_date: 1.month.from_now) do |future_milestone|
           create(:issue, project: project, milestone: future_milestone, author: user)
         end
 
-        input_filtered_search("milestone:upcoming")
+        input_filtered_search("milestone=upcoming")
 
         expect_tokens([milestone_token('Upcoming', false)])
         expect_issues_list_count(1)
         expect_filtered_search_input_empty
       end
 
+      it 'filters issues by negation of upcoming milestones' do
+        create(:milestone, project: project, due_date: 1.month.from_now) do |future_milestone|
+          create(:issue, project: project, milestone: future_milestone, author: user)
+        end
+
+        input_filtered_search("milestone!=upcoming")
+
+        expect_tokens([milestone_token('Upcoming', false, '!=')])
+        expect_issues_list_count(8)
+        expect_filtered_search_input_empty
+      end
+
       it 'filters issues by started milestones' do
-        input_filtered_search("milestone:started")
+        input_filtered_search("milestone=started")
 
         expect_tokens([milestone_token('Started', false)])
         expect_issues_list_count(5)
         expect_filtered_search_input_empty
       end
 
+      it 'filters issues by negation of started milestones' do
+        input_filtered_search("milestone!=started")
+
+        expect_tokens([milestone_token('Started', false, '!=')])
+        expect_issues_list_count(3)
+        expect_filtered_search_input_empty
+      end
+
       it 'filters issues by milestone containing special characters' do
         special_milestone = create(:milestone, title: '!@\#{$%^&*()}', project: project)
         create(:issue, project: project, milestone: special_milestone)
 
-        input_filtered_search("milestone:%#{special_milestone.title}")
+        input_filtered_search("milestone=%#{special_milestone.title}")
 
         expect_tokens([milestone_token(special_milestone.title)])
         expect_issues_list_count(1)
         expect_filtered_search_input_empty
       end
 
+      it 'filters issues by milestone not containing special characters' do
+        special_milestone = create(:milestone, title: '!@\#{$%^&*()}', project: project)
+        create(:issue, project: project, milestone: special_milestone)
+
+        input_filtered_search("milestone!=%#{special_milestone.title}")
+
+        expect_tokens([milestone_token(special_milestone.title, false, '!=')])
+        expect_issues_list_count(8)
+        expect_filtered_search_input_empty
+      end
+
       it 'does not show issues for unused milestones' do
         new_milestone = create(:milestone, title: 'new', project: project)
 
-        input_filtered_search("milestone:%#{new_milestone.title}")
+        input_filtered_search("milestone=%#{new_milestone.title}")
 
         expect_tokens([milestone_token(new_milestone.title)])
         expect_no_issues_list
         expect_filtered_search_input_empty
       end
+
+      it 'show issues for unused milestones' do
+        new_milestone = create(:milestone, title: 'new', project: project)
+
+        input_filtered_search("milestone!=%#{new_milestone.title}")
+
+        expect_tokens([milestone_token(new_milestone.title, false, '!=')])
+        expect_issues_list_count(8)
+        expect_filtered_search_input_empty
+      end
     end
   end
 
@@ -407,7 +521,7 @@ describe 'Filter issues', :js do
 
     context 'searched text with other filters' do
       it 'filters issues by searched text, author, text, assignee, text, label1, text, label2, text, milestone and text' do
-        input_filtered_search("bug author:@#{user.username} report label:~#{bug_label.title} label:~#{caps_sensitive_label.title} milestone:%#{milestone.title} foo")
+        input_filtered_search("bug author=@#{user.username} report label=~#{bug_label.title} label=~#{caps_sensitive_label.title} milestone=%#{milestone.title} foo")
 
         expect_issues_list_count(1)
         expect_filtered_search_input('bug report foo')
@@ -481,7 +595,7 @@ describe 'Filter issues', :js do
     end
 
     it 'milestone dropdown loads milestones' do
-      input_filtered_search("milestone:", submit: false)
+      input_filtered_search("milestone=", submit: false)
 
       within('#js-dropdown-milestone') do
         expect(page).to have_selector('.filter-dropdown .filter-dropdown-item', count: 1)
@@ -489,7 +603,7 @@ describe 'Filter issues', :js do
     end
 
     it 'label dropdown load labels' do
-      input_filtered_search("label:", submit: false)
+      input_filtered_search("label=", submit: false)
 
       within('#js-dropdown-label') do
         expect(page).to have_selector('.filter-dropdown .filter-dropdown-item', count: 3)

spec/features/issues/filtered_search/recent_searches_spec.rb

@@ -41,8 +41,8 @@ describe 'Recent searches', :js do
 
     items = all('.filtered-search-history-dropdown-item', visible: false, count: 2)
 
-    expect(items[0].text).to eq('label: ~qux garply')
-    expect(items[1].text).to eq('label: ~foo bar')
+    expect(items[0].text).to eq('label: = ~qux garply')
+    expect(items[1].text).to eq('label: = ~foo bar')
   end
 
   it 'saved recent searches are restored last on the list' do

spec/features/issues/filtered_search/search_bar_spec.rb

@@ -34,7 +34,7 @@ describe 'Search bar', :js do
     it 'selects item' do
       filtered_search.native.send_keys(:down, :down, :enter)
 
-      expect_tokens([author_token])
+      expect_tokens([{ name: 'Assignee' }])
       expect_filtered_search_input_empty
     end
   end
@@ -78,7 +78,7 @@ describe 'Search bar', :js do
       filtered_search.click
       original_size = page.all('#js-dropdown-hint .filter-dropdown .filter-dropdown-item').size
 
-      filtered_search.set('author')
+      filtered_search.set('autho')
 
       expect(find('#js-dropdown-hint')).to have_selector('.filter-dropdown .filter-dropdown-item', count: 1)
 

spec/features/issues/filtered_search/visual_tokens_spec.rb

@@ -36,8 +36,9 @@ describe 'Visual tokens', :js do
 
   describe 'editing a single token' do
     before do
-      input_filtered_search('author:@root assignee:none', submit: false)
+      input_filtered_search('author=@root assignee=none', submit: false)
       first('.tokens-container .filtered-search-token').click
+      wait_for_requests
     end
 
     it 'opens author dropdown' do
@@ -76,8 +77,8 @@ describe 'Visual tokens', :js do
 
   describe 'editing multiple tokens' do
     before do
-      input_filtered_search('author:@root assignee:none', submit: false)
-      first('.tokens-container .filtered-search-token').double_click
+      input_filtered_search('author=@root assignee=none', submit: false)
+      first('.tokens-container .filtered-search-token').click
     end
 
     it 'opens author dropdown' do
@@ -85,27 +86,33 @@ describe 'Visual tokens', :js do
     end
 
     it 'opens assignee dropdown' do
-      find('.tokens-container .filtered-search-token', text: 'Assignee').double_click
+      find('.tokens-container .filtered-search-token', text: 'Assignee').click
       expect(page).to have_css('#js-dropdown-assignee', visible: true)
     end
   end
 
   describe 'editing a search term while editing another filter token' do
     before do
-      input_filtered_search('author assignee:', submit: false)
-      first('.tokens-container .filtered-search-term').double_click
+      input_filtered_search('foo assignee=', submit: false)
+      first('.tokens-container .filtered-search-term').click
     end
 
     it 'opens author dropdown' do
-      find('#js-dropdown-hint .filter-dropdown .filter-dropdown-item', text: 'author').click
+      find('#js-dropdown-hint .filter-dropdown .filter-dropdown-item', text: 'Author').click
+
+      expect(page).to have_css('#js-dropdown-operator', visible: true)
+      expect(page).to have_css('#js-dropdown-author', visible: false)
+
+      find('#js-dropdown-operator .filter-dropdown .filter-dropdown-item[data-value="="]').click
 
+      expect(page).to have_css('#js-dropdown-operator', visible: false)
       expect(page).to have_css('#js-dropdown-author', visible: true)
     end
   end
 
   describe 'add new token after editing existing token' do
     before do
-      input_filtered_search('author:@root assignee:none', submit: false)
+      input_filtered_search('author=@root assignee=none', submit: false)
       first('.tokens-container .filtered-search-token').double_click
       filtered_search.send_keys(' ')
     end
@@ -116,7 +123,7 @@ describe 'Visual tokens', :js do
       end
 
       it 'opens token dropdown' do
-        filtered_search.send_keys('author:')
+        filtered_search.send_keys('author=')
 
         expect(page).to have_css('#js-dropdown-author', visible: true)
       end
@@ -124,7 +131,7 @@ describe 'Visual tokens', :js do
 
     describe 'visual tokens' do
       it 'creates visual token' do
-        filtered_search.send_keys('author:@thomas ')
+        filtered_search.send_keys('author=@thomas ')
         token = page.all('.tokens-container .filtered-search-token')[1]
 
         expect(token.find('.name').text).to eq('Author')
@@ -133,7 +140,7 @@ describe 'Visual tokens', :js do
     end
 
     it 'does not tokenize incomplete token' do
-      filtered_search.send_keys('author:')
+      filtered_search.send_keys('author=')
 
       find('body').click
       token = page.all('.tokens-container .js-visual-token')[1]
@@ -145,7 +152,7 @@ describe 'Visual tokens', :js do
 
   describe 'search using incomplete visual tokens' do
     before do
-      input_filtered_search('author:@root assignee:none', extra_space: false)
+      input_filtered_search('author=@root assignee=none', extra_space: false)
     end
 
     it 'tokenizes the search term to complete visual token' do

spec/features/labels_hierarchy_spec.rb

@@ -70,7 +70,7 @@ describe 'Labels Hierarchy', :js do
     end
 
     it 'does not filter by descendant group labels' do
-      filtered_search.set("label:")
+      filtered_search.set("label=")
 
       wait_for_requests
 
@@ -134,7 +134,7 @@ describe 'Labels Hierarchy', :js do
     end
 
     it 'does not filter by descendant group project labels' do
-      filtered_search.set("label:")
+      filtered_search.set("label=")
 
       wait_for_requests
 
@@ -227,7 +227,7 @@ describe 'Labels Hierarchy', :js do
       it_behaves_like 'filtering by ancestor labels for projects'
 
       it 'does not filter by descendant group labels' do
-        filtered_search.set("label:")
+        filtered_search.set("label=")
 
         wait_for_requests
 

spec/features/merge_requests/filters_generic_behavior_spec.rb

@@ -23,7 +23,7 @@ describe 'Merge Requests > Filters generic behavior', :js do
 
   context 'when filtered by a label' do
     before do
-      input_filtered_search('label:~bug')
+      input_filtered_search('label=~bug')
     end
 
     describe 'state tabs' do

spec/features/merge_requests/user_filters_by_assignees_spec.rb

@@ -18,7 +18,7 @@ describe 'Merge Requests > User filters by assignees', :js do
 
   context 'filtering by assignee:none' do
     it 'applies the filter' do
-      input_filtered_search('assignee:none')
+      input_filtered_search('assignee=none')
 
       expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
       expect(page).not_to have_content 'Bugfix1'
@@ -26,9 +26,9 @@ describe 'Merge Requests > User filters by assignees', :js do
     end
   end
 
-  context 'filtering by assignee:@username' do
+  context 'filtering by assignee=@username' do
     it 'applies the filter' do
-      input_filtered_search("assignee:@#{user.username}")
+      input_filtered_search("assignee=@#{user.username}")
 
       expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
       expect(page).to have_content 'Bugfix1'

spec/features/merge_requests/user_filters_by_labels_spec.rb

@@ -22,7 +22,7 @@ describe 'Merge Requests > User filters by labels', :js do
 
   context 'filtering by label:none' do
     it 'applies the filter' do
-      input_filtered_search('label:none')
+      input_filtered_search('label=none')
 
       expect(page).to have_issuable_counts(open: 0, closed: 0, all: 0)
       expect(page).not_to have_content 'Bugfix1'
@@ -32,7 +32,7 @@ describe 'Merge Requests > User filters by labels', :js do
 
   context 'filtering by label:~enhancement' do
     it 'applies the filter' do
-      input_filtered_search('label:~enhancement')
+      input_filtered_search('label=~enhancement')
 
       expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
       expect(page).to have_content 'Bugfix2'
@@ -42,7 +42,7 @@ describe 'Merge Requests > User filters by labels', :js do
 
   context 'filtering by label:~enhancement and label:~bug' do
     it 'applies the filters' do
-      input_filtered_search('label:~bug label:~enhancement')
+      input_filtered_search('label=~bug label=~enhancement')
 
       expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
       expect(page).to have_content 'Bugfix2'

spec/features/merge_requests/user_filters_by_milestones_spec.rb

@@ -18,14 +18,14 @@ describe 'Merge Requests > User filters by milestones', :js do
   end
 
   it 'filters by no milestone' do
-    input_filtered_search('milestone:none')
+    input_filtered_search('milestone=none')
 
     expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
     expect(page).to have_css('.merge-request', count: 1)
   end
 
   it 'filters by a specific milestone' do
-    input_filtered_search("milestone:%'#{milestone.title}'")
+    input_filtered_search("milestone=%'#{milestone.title}'")
 
     expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
     expect(page).to have_css('.merge-request', count: 1)
@@ -33,7 +33,7 @@ describe 'Merge Requests > User filters by milestones', :js do
 
   describe 'filters by upcoming milestone' do
     it 'does not show merge requests with no expiry' do
-      input_filtered_search('milestone:upcoming')
+      input_filtered_search('milestone=upcoming')
 
       expect(page).to have_issuable_counts(open: 0, closed: 0, all: 0)
       expect(page).to have_css('.merge-request', count: 0)
@@ -43,7 +43,7 @@ describe 'Merge Requests > User filters by milestones', :js do
       let(:milestone) { create(:milestone, project: project, due_date: Date.tomorrow) }
 
       it 'shows merge requests' do
-        input_filtered_search('milestone:upcoming')
+        input_filtered_search('milestone=upcoming')
 
         expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
         expect(page).to have_css('.merge-request', count: 1)
@@ -54,7 +54,7 @@ describe 'Merge Requests > User filters by milestones', :js do
       let(:milestone) { create(:milestone, project: project, due_date: Date.yesterday) }
 
       it 'does not show any merge requests' do
-        input_filtered_search('milestone:upcoming')
+        input_filtered_search('milestone=upcoming')
 
         expect(page).to have_issuable_counts(open: 0, closed: 0, all: 0)
         expect(page).to have_css('.merge-request', count: 0)

spec/features/merge_requests/user_filters_by_multiple_criteria_spec.rb

@@ -20,7 +20,7 @@ describe 'Merge requests > User filters by multiple criteria', :js do
 
   describe 'filtering by label:~"Won\'t fix" and assignee:~bug' do
     it 'applies the filters' do
-      input_filtered_search("label:~\"Won't fix\" assignee:@#{user.username}")
+      input_filtered_search("label=~\"Won't fix\" assignee=@#{user.username}")
 
       expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
       expect(page).to have_content 'Bugfix2'
@@ -30,7 +30,7 @@ describe 'Merge requests > User filters by multiple criteria', :js do
 
   describe 'filtering by text, author, assignee, milestone, and label' do
     it 'filters by text, author, assignee, milestone, and label' do
-      input_filtered_search_keys("author:@#{user.username} assignee:@#{user.username} milestone:%\"v1.1\" label:~\"Won't fix\" Bug")
+      input_filtered_search_keys("author=@#{user.username} assignee=@#{user.username} milestone=%\"v1.1\" label=~\"Won't fix\" Bug")
 
       expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
       expect(page).to have_content 'Bugfix2'

spec/features/merge_requests/user_filters_by_target_branch_spec.rb

@@ -17,7 +17,7 @@ describe 'Merge Requests > User filters by target branch', :js do
 
   context 'filtering by target-branch:master' do
     it 'applies the filter' do
-      input_filtered_search('target-branch:master')
+      input_filtered_search('target-branch=master')
 
       expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
       expect(page).to have_content mr1.title
@@ -27,7 +27,7 @@ describe 'Merge Requests > User filters by target branch', :js do
 
   context 'filtering by target-branch:merged-target' do
     it 'applies the filter' do
-      input_filtered_search('target-branch:merged-target')
+      input_filtered_search('target-branch=merged-target')
 
       expect(page).to have_issuable_counts(open: 1, closed: 0, all: 1)
       expect(page).not_to have_content mr1.title
@@ -37,7 +37,7 @@ describe 'Merge Requests > User filters by target branch', :js do
 
   context 'filtering by target-branch:feature' do
     it 'applies the filter' do
-      input_filtered_search('target-branch:feature')
+      input_filtered_search('target-branch=feature')
 
       expect(page).to have_issuable_counts(open: 0, closed: 0, all: 0)
       expect(page).not_to have_content mr1.title

spec/frontend/filtered_search/filtered_search_token_keys_spec.js

@@ -124,6 +124,7 @@ describe('Filtered Search Token Keys', () => {
       const condition = new FilteredSearchTokenKeys([], [], conditions).searchByConditionKeyValue(
         null,
         null,
+        null,
       );
 
       expect(condition).toBeNull();
@@ -132,6 +133,7 @@ describe('Filtered Search Token Keys', () => {
     it('should return condition when found by tokenKey and value', () => {
       const result = new FilteredSearchTokenKeys([], [], conditions).searchByConditionKeyValue(
         conditions[0].tokenKey,
+        conditions[0].operator,
         conditions[0].value,
       );
 

spec/javascripts/droplab/drop_down_spec.js

@@ -398,14 +398,21 @@ describe('DropLab DropDown', function() {
 
   describe('render', function() {
     beforeEach(function() {
-      this.list = { querySelector: () => {}, dispatchEvent: () => {} };
-      this.dropdown = { renderChildren: () => {}, list: this.list };
       this.renderableList = {};
+      this.list = {
+        querySelector: q => {
+          if (q === '.filter-dropdown-loading') {
+            return false;
+          }
+          return this.renderableList;
+        },
+        dispatchEvent: () => {},
+      };
+      this.dropdown = { renderChildren: () => {}, list: this.list };
       this.data = [0, 1];
       this.customEvent = {};
 
       spyOn(this.dropdown, 'renderChildren').and.callFake(data => data);
-      spyOn(this.list, 'querySelector').and.returnValue(this.renderableList);
       spyOn(this.list, 'dispatchEvent');
       spyOn(this.data, 'map').and.callThrough();
       spyOn(window, 'CustomEvent').and.returnValue(this.customEvent);

spec/javascripts/filtered_search/dropdown_utils_spec.js

@@ -222,7 +222,7 @@ describe('Dropdown Utils', () => {
         hasAttribute: () => false,
       };
 
-      DropdownUtils.setDataValueIfSelected(null, selected);
+      DropdownUtils.setDataValueIfSelected(null, '=', selected);
 
       expect(FilteredSearchDropdownManager.addWordToInput.calls.count()).toEqual(1);
     });
@@ -233,9 +233,11 @@ describe('Dropdown Utils', () => {
         hasAttribute: () => false,
       };
 
-      const result = DropdownUtils.setDataValueIfSelected(null, selected);
+      const result = DropdownUtils.setDataValueIfSelected(null, '=', selected);
+      const result2 = DropdownUtils.setDataValueIfSelected(null, '!=', selected);
 
       expect(result).toBe(true);
+      expect(result2).toBe(true);
     });
 
     it('returns false when dataValue does not exist', () => {
@@ -243,9 +245,11 @@ describe('Dropdown Utils', () => {
         getAttribute: () => null,
       };
 
-      const result = DropdownUtils.setDataValueIfSelected(null, selected);
+      const result = DropdownUtils.setDataValueIfSelected(null, '=', selected);
+      const result2 = DropdownUtils.setDataValueIfSelected(null, '!=', selected);
 
       expect(result).toBe(false);
+      expect(result2).toBe(false);
     });
   });
 
@@ -349,7 +353,7 @@ describe('Dropdown Utils', () => {
     beforeEach(() => {
       loadFixtures(issueListFixture);
 
-      authorToken = FilteredSearchSpecHelper.createFilterVisualToken('author', '@user');
+      authorToken = FilteredSearchSpecHelper.createFilterVisualToken('author', '=', '@user');
       const searchTermToken = FilteredSearchSpecHelper.createSearchVisualToken('search term');
 
       const tokensContainer = document.querySelector('.tokens-container');
@@ -364,7 +368,7 @@ describe('Dropdown Utils', () => {
 
       const searchQuery = DropdownUtils.getSearchQuery();
 
-      expect(searchQuery).toBe(' search term author:original dance');
+      expect(searchQuery).toBe(' search term author:=original dance');
     });
   });
 });

spec/javascripts/filtered_search/filtered_search_dropdown_manager_spec.js

@@ -27,7 +27,7 @@ describe('Filtered Search Dropdown Manager', () => {
 
     describe('input has no existing value', () => {
       it('should add just tokenName', () => {
-        FilteredSearchDropdownManager.addWordToInput('milestone');
+        FilteredSearchDropdownManager.addWordToInput({ tokenName: 'milestone' });
 
         const token = document.querySelector('.tokens-container .js-visual-token');
 
@@ -36,8 +36,8 @@ describe('Filtered Search Dropdown Manager', () => {
         expect(getInputValue()).toBe('');
       });
 
-      it('should add tokenName and tokenValue', () => {
-        FilteredSearchDropdownManager.addWordToInput('label');
+      it('should add tokenName, tokenOperator, and tokenValue', () => {
+        FilteredSearchDropdownManager.addWordToInput({ tokenName: 'label' });
 
         let token = document.querySelector('.tokens-container .js-visual-token');
 
@@ -45,13 +45,27 @@ describe('Filtered Search Dropdown Manager', () => {
         expect(token.querySelector('.name').innerText).toBe('label');
         expect(getInputValue()).toBe('');
 
-        FilteredSearchDropdownManager.addWordToInput('label', 'none');
+        FilteredSearchDropdownManager.addWordToInput({ tokenName: 'label', tokenOperator: '=' });
+
+        token = document.querySelector('.tokens-container .js-visual-token');
+
+        expect(token.classList.contains('filtered-search-token')).toEqual(true);
+        expect(token.querySelector('.name').innerText).toBe('label');
+        expect(token.querySelector('.operator').innerText).toBe('=');
+        expect(getInputValue()).toBe('');
+
+        FilteredSearchDropdownManager.addWordToInput({
+          tokenName: 'label',
+          tokenOperator: '=',
+          tokenValue: 'none',
+        });
         // We have to get that reference again
         // Because FilteredSearchDropdownManager deletes the previous token
         token = document.querySelector('.tokens-container .js-visual-token');
 
         expect(token.classList.contains('filtered-search-token')).toEqual(true);
         expect(token.querySelector('.name').innerText).toBe('label');
+        expect(token.querySelector('.operator').innerText).toBe('=');
         expect(token.querySelector('.value').innerText).toBe('none');
         expect(getInputValue()).toBe('');
       });
@@ -60,7 +74,7 @@ describe('Filtered Search Dropdown Manager', () => {
     describe('input has existing value', () => {
       it('should be able to just add tokenName', () => {
         setInputValue('a');
-        FilteredSearchDropdownManager.addWordToInput('author');
+        FilteredSearchDropdownManager.addWordToInput({ tokenName: 'author' });
 
         const token = document.querySelector('.tokens-container .js-visual-token');
 
@@ -70,29 +84,40 @@ describe('Filtered Search Dropdown Manager', () => {
       });
 
       it('should replace tokenValue', () => {
-        FilteredSearchDropdownManager.addWordToInput('author');
+        FilteredSearchDropdownManager.addWordToInput({ tokenName: 'author' });
+        FilteredSearchDropdownManager.addWordToInput({ tokenName: 'author', tokenOperator: '=' });
 
         setInputValue('roo');
-        FilteredSearchDropdownManager.addWordToInput(null, '@root');
+        FilteredSearchDropdownManager.addWordToInput({
+          tokenName: null,
+          tokenOperator: '=',
+          tokenValue: '@root',
+        });
 
         const token = document.querySelector('.tokens-container .js-visual-token');
 
         expect(token.classList.contains('filtered-search-token')).toEqual(true);
         expect(token.querySelector('.name').innerText).toBe('author');
+        expect(token.querySelector('.operator').innerText).toBe('=');
         expect(token.querySelector('.value').innerText).toBe('@root');
         expect(getInputValue()).toBe('');
       });
 
       it('should add tokenValues containing spaces', () => {
-        FilteredSearchDropdownManager.addWordToInput('label');
+        FilteredSearchDropdownManager.addWordToInput({ tokenName: 'label' });
 
         setInputValue('"test ');
-        FilteredSearchDropdownManager.addWordToInput('label', '~\'"test me"\'');
+        FilteredSearchDropdownManager.addWordToInput({
+          tokenName: 'label',
+          tokenOperator: '=',
+          tokenValue: '~\'"test me"\'',
+        });
 
         const token = document.querySelector('.tokens-container .js-visual-token');
 
         expect(token.classList.contains('filtered-search-token')).toEqual(true);
         expect(token.querySelector('.name').innerText).toBe('label');
+        expect(token.querySelector('.operator').innerText).toBe('=');
         expect(token.querySelector('.value').innerText).toBe('~\'"test me"\'');
         expect(getInputValue()).toBe('');
       });

spec/javascripts/filtered_search/filtered_search_manager_spec.js

@@ -201,8 +201,8 @@ describe('Filtered Search Manager', function() {
 
     it('removes duplicated tokens', done => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(`
-        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '~bug')}
-        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '~bug')}
+        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '=', '~bug')}
+        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '=', '~bug')}
       `);
 
       spyOnDependency(FilteredSearchManager, 'visitUrl').and.callFake(url => {
@@ -234,7 +234,7 @@ describe('Filtered Search Manager', function() {
 
     it('should not render placeholder when there are tokens and no input', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(
-        FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '~bug'),
+        FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '=', '~bug'),
       );
 
       const event = new Event('input');
@@ -252,7 +252,7 @@ describe('Filtered Search Manager', function() {
     describe('tokens and no input', () => {
       beforeEach(() => {
         tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(
-          FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '~bug'),
+          FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '=', '~bug'),
         );
       });
 
@@ -306,7 +306,7 @@ describe('Filtered Search Manager', function() {
 
     it('removes token even when it is already selected', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(
-        FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', 'none', true),
+        FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', '=', 'none', true),
       );
 
       tokensContainer.querySelector('.js-visual-token .remove-token').click();
@@ -319,7 +319,7 @@ describe('Filtered Search Manager', function() {
         spyOn(FilteredSearchManager.prototype, 'removeSelectedToken').and.callThrough();
 
         tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(
-          FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', 'none'),
+          FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', '=', 'none'),
         );
         tokensContainer.querySelector('.js-visual-token .remove-token').click();
       });
@@ -338,7 +338,7 @@ describe('Filtered Search Manager', function() {
     beforeEach(() => {
       initializeManager();
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(
-        FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', 'none', true),
+        FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', '=', 'none', true),
       );
     });
 
@@ -424,7 +424,7 @@ describe('Filtered Search Manager', function() {
     });
 
     it('Clicking the "x" clear button, clears the input', () => {
-      const inputValue = 'label:~bug ';
+      const inputValue = 'label:=~bug';
       manager.filteredSearchInput.value = inputValue;
       manager.filteredSearchInput.dispatchEvent(new Event('input'));
 

spec/javascripts/filtered_search/filtered_search_visual_tokens_spec.js

@@ -6,9 +6,10 @@ describe('Filtered Search Visual Tokens', () => {
 
   const findElements = tokenElement => {
     const tokenNameElement = tokenElement.querySelector('.name');
+    const tokenOperatorElement = tokenElement.querySelector('.operator');
     const tokenValueContainer = tokenElement.querySelector('.value-container');
     const tokenValueElement = tokenValueContainer.querySelector('.value');
-    return { tokenNameElement, tokenValueContainer, tokenValueElement };
+    return { tokenNameElement, tokenOperatorElement, tokenValueContainer, tokenValueElement };
   };
 
   let tokensContainer;
@@ -23,8 +24,8 @@ describe('Filtered Search Visual Tokens', () => {
     `);
     tokensContainer = document.querySelector('.tokens-container');
 
-    authorToken = FilteredSearchSpecHelper.createFilterVisualToken('author', '@user');
-    bugLabelToken = FilteredSearchSpecHelper.createFilterVisualToken('label', '~bug');
+    authorToken = FilteredSearchSpecHelper.createFilterVisualToken('author', '=', '@user');
+    bugLabelToken = FilteredSearchSpecHelper.createFilterVisualToken('label', '=', '~bug');
   });
 
   describe('getLastVisualTokenBeforeInput', () => {
@@ -62,7 +63,7 @@ describe('Filtered Search Visual Tokens', () => {
         tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(`
           ${bugLabelToken.outerHTML}
           ${FilteredSearchSpecHelper.createSearchVisualTokenHTML('search term')}
-          ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '@root')}
+          ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '=', '@root')}
         `);
 
         const { lastVisualToken, isLastVisualTokenValid } = subject.getLastVisualTokenBeforeInput();
@@ -92,7 +93,7 @@ describe('Filtered Search Visual Tokens', () => {
         tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(`
           ${bugLabelToken.outerHTML}
           ${FilteredSearchSpecHelper.createInputHTML()}
-          ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '@root')}
+          ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '=', '@root')}
         `);
 
         const { lastVisualToken, isLastVisualTokenValid } = subject.getLastVisualTokenBeforeInput();
@@ -105,7 +106,7 @@ describe('Filtered Search Visual Tokens', () => {
         tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(`
           ${FilteredSearchSpecHelper.createNameFilterVisualTokenHTML('label')}
           ${FilteredSearchSpecHelper.createInputHTML()}
-          ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '@root')}
+          ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '=', '@root')}
         `);
 
         const { lastVisualToken, isLastVisualTokenValid } = subject.getLastVisualTokenBeforeInput();
@@ -150,8 +151,8 @@ describe('Filtered Search Visual Tokens', () => {
 
     it('removes the selected class from buttons', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(`
-        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '@author')}
-        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', '%123', true)}
+        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '=', '@author')}
+        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', '=', '%123', true)}
       `);
 
       const selected = tokensContainer.querySelector('.js-visual-token .selected');
@@ -169,7 +170,7 @@ describe('Filtered Search Visual Tokens', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(`
         ${bugLabelToken.outerHTML}
         ${FilteredSearchSpecHelper.createSearchVisualTokenHTML('search term')}
-        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '~awesome')}
+        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '=', '~awesome')}
       `);
     });
 
@@ -206,7 +207,7 @@ describe('Filtered Search Visual Tokens', () => {
   describe('removeSelectedToken', () => {
     it('does not remove when there are no selected tokens', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(
-        FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', 'none'),
+        FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', '=', 'none'),
       );
 
       expect(tokensContainer.querySelector('.js-visual-token .selectable')).not.toEqual(null);
@@ -218,7 +219,7 @@ describe('Filtered Search Visual Tokens', () => {
 
     it('removes selected token', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(
-        FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', 'none', true),
+        FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', '=', 'none', true),
       );
 
       expect(tokensContainer.querySelector('.js-visual-token .selectable')).not.toEqual(null);
@@ -281,16 +282,22 @@ describe('Filtered Search Visual Tokens', () => {
 
   describe('addVisualTokenElement', () => {
     it('renders search visual tokens', () => {
-      subject.addVisualTokenElement('search term', null, { isSearchTerm: true });
+      subject.addVisualTokenElement({
+        name: 'search term',
+        operator: '=',
+        value: null,
+        options: { isSearchTerm: true },
+      });
       const token = tokensContainer.querySelector('.js-visual-token');
 
       expect(token.classList.contains('filtered-search-term')).toEqual(true);
       expect(token.querySelector('.name').innerText).toEqual('search term');
+      expect(token.querySelector('.operator').innerText).toEqual('=');
       expect(token.querySelector('.value')).toEqual(null);
     });
 
     it('renders filter visual token name', () => {
-      subject.addVisualTokenElement('milestone');
+      subject.addVisualTokenElement({ name: 'milestone' });
       const token = tokensContainer.querySelector('.js-visual-token');
 
       expect(token.classList.contains('search-token-milestone')).toEqual(true);
@@ -299,22 +306,23 @@ describe('Filtered Search Visual Tokens', () => {
       expect(token.querySelector('.value')).toEqual(null);
     });
 
-    it('renders filter visual token name and value', () => {
-      subject.addVisualTokenElement('label', 'Frontend');
+    it('renders filter visual token name, operator, and value', () => {
+      subject.addVisualTokenElement({ name: 'label', operator: '!=', value: 'Frontend' });
       const token = tokensContainer.querySelector('.js-visual-token');
 
       expect(token.classList.contains('search-token-label')).toEqual(true);
       expect(token.classList.contains('filtered-search-token')).toEqual(true);
       expect(token.querySelector('.name').innerText).toEqual('label');
+      expect(token.querySelector('.operator').innerText).toEqual('!=');
       expect(token.querySelector('.value').innerText).toEqual('Frontend');
     });
 
     it('inserts visual token before input', () => {
       tokensContainer.appendChild(
-        FilteredSearchSpecHelper.createFilterVisualToken('assignee', '@root'),
+        FilteredSearchSpecHelper.createFilterVisualToken('assignee', '=', '@root'),
       );
 
-      subject.addVisualTokenElement('label', 'Frontend');
+      subject.addVisualTokenElement({ name: 'label', operator: '!=', value: 'Frontend' });
       const tokens = tokensContainer.querySelectorAll('.js-visual-token');
       const labelToken = tokens[0];
       const assigneeToken = tokens[1];
@@ -323,18 +331,20 @@ describe('Filtered Search Visual Tokens', () => {
       expect(labelToken.classList.contains('filtered-search-token')).toEqual(true);
       expect(labelToken.querySelector('.name').innerText).toEqual('label');
       expect(labelToken.querySelector('.value').innerText).toEqual('Frontend');
+      expect(labelToken.querySelector('.operator').innerText).toEqual('!=');
 
       expect(assigneeToken.classList.contains('search-token-assignee')).toEqual(true);
       expect(assigneeToken.classList.contains('filtered-search-token')).toEqual(true);
       expect(assigneeToken.querySelector('.name').innerText).toEqual('assignee');
       expect(assigneeToken.querySelector('.value').innerText).toEqual('@root');
+      expect(assigneeToken.querySelector('.operator').innerText).toEqual('=');
     });
   });
 
   describe('addValueToPreviousVisualTokenElement', () => {
     it('does not add when previous visual token element has no value', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(
-        FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '@root'),
+        FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '=', '@root'),
       );
 
       const original = tokensContainer.innerHTML;
@@ -345,7 +355,7 @@ describe('Filtered Search Visual Tokens', () => {
 
     it('does not add when previous visual token element is a search', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(`
-        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '@root')}
+        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '=', '@root')}
         ${FilteredSearchSpecHelper.createSearchVisualTokenHTML('search term')}
       `);
 
@@ -357,7 +367,7 @@ describe('Filtered Search Visual Tokens', () => {
 
     it('adds value to previous visual filter token', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(
-        FilteredSearchSpecHelper.createNameFilterVisualTokenHTML('label'),
+        FilteredSearchSpecHelper.createNameOperatorFilterVisualTokenHTML('label', '='),
       );
 
       const original = tokensContainer.innerHTML;
@@ -377,25 +387,28 @@ describe('Filtered Search Visual Tokens', () => {
 
       expect(token.classList.contains('filtered-search-token')).toEqual(true);
       expect(token.querySelector('.name').innerText).toEqual('milestone');
+      expect(token.querySelector('.operator')).toEqual(null);
       expect(token.querySelector('.value')).toEqual(null);
     });
 
     it('creates visual token with just tokenValue', () => {
-      subject.addFilterVisualToken('milestone');
+      subject.addFilterVisualToken('milestone', '=');
       subject.addFilterVisualToken('%8.17');
       const token = tokensContainer.querySelector('.js-visual-token');
 
       expect(token.classList.contains('filtered-search-token')).toEqual(true);
       expect(token.querySelector('.name').innerText).toEqual('milestone');
+      expect(token.querySelector('.operator').innerText).toEqual('=');
       expect(token.querySelector('.value').innerText).toEqual('%8.17');
     });
 
     it('creates full visual token', () => {
-      subject.addFilterVisualToken('assignee', '@john');
+      subject.addFilterVisualToken('assignee', '=', '@john');
       const token = tokensContainer.querySelector('.js-visual-token');
 
       expect(token.classList.contains('filtered-search-token')).toEqual(true);
       expect(token.querySelector('.name').innerText).toEqual('assignee');
+      expect(token.querySelector('.operator').innerText).toEqual('=');
       expect(token.querySelector('.value').innerText).toEqual('@john');
     });
   });
@@ -412,7 +425,7 @@ describe('Filtered Search Visual Tokens', () => {
 
     it('appends to previous search visual token if previous token was a search token', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(`
-        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '@root')}
+        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('author', '=', '@root')}
         ${FilteredSearchSpecHelper.createSearchVisualTokenHTML('search term')}
       `);
 
@@ -467,7 +480,11 @@ describe('Filtered Search Visual Tokens', () => {
   describe('removeLastTokenPartial', () => {
     it('should remove the last token value if it exists', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(
-        FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '~"Community Contribution"'),
+        FilteredSearchSpecHelper.createFilterVisualTokenHTML(
+          'label',
+          '=',
+          '~"Community Contribution"',
+        ),
       );
 
       expect(tokensContainer.querySelector('.js-visual-token .value')).not.toEqual(null);
@@ -507,7 +524,7 @@ describe('Filtered Search Visual Tokens', () => {
 
     it('adds search visual token if previous visual token is valid', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(
-        FilteredSearchSpecHelper.createFilterVisualTokenHTML('assignee', 'none'),
+        FilteredSearchSpecHelper.createFilterVisualTokenHTML('assignee', '=', 'none'),
       );
 
       const input = document.querySelector('.filtered-search');
@@ -523,7 +540,7 @@ describe('Filtered Search Visual Tokens', () => {
 
     it('adds value to previous visual token element if previous visual token is invalid', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(
-        FilteredSearchSpecHelper.createNameFilterVisualTokenHTML('assignee'),
+        FilteredSearchSpecHelper.createNameOperatorFilterVisualTokenHTML('assignee', '='),
       );
 
       const input = document.querySelector('.filtered-search');
@@ -534,6 +551,7 @@ describe('Filtered Search Visual Tokens', () => {
 
       expect(input.value).toEqual('');
       expect(updatedToken.querySelector('.name').innerText).toEqual('assignee');
+      expect(updatedToken.querySelector('.operator').innerText).toEqual('=');
       expect(updatedToken.querySelector('.value').innerText).toEqual('@john');
     });
   });
@@ -544,9 +562,9 @@ describe('Filtered Search Visual Tokens', () => {
 
     beforeEach(() => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(`
-        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', 'none')}
+        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '=', 'none')}
         ${FilteredSearchSpecHelper.createSearchVisualTokenHTML('search')}
-        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', 'upcoming')}
+        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('milestone', '=', 'upcoming')}
       `);
 
       input = document.querySelector('.filtered-search');
@@ -614,7 +632,7 @@ describe('Filtered Search Visual Tokens', () => {
   describe('moveInputTotheRight', () => {
     it('does nothing if the input is already the right most element', () => {
       tokensContainer.innerHTML = FilteredSearchSpecHelper.createTokensContainerHTML(
-        FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', 'none'),
+        FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '=', 'none'),
       );
 
       spyOn(subject, 'tokenizeInput').and.callFake(() => {});
@@ -628,12 +646,12 @@ describe('Filtered Search Visual Tokens', () => {
 
     it("tokenize's input", () => {
       tokensContainer.innerHTML = `
-        ${FilteredSearchSpecHelper.createNameFilterVisualTokenHTML('label')}
+        ${FilteredSearchSpecHelper.createNameOperatorFilterVisualTokenHTML('label', '=')}
         ${FilteredSearchSpecHelper.createInputHTML()}
         ${bugLabelToken.outerHTML}
       `;
 
-      document.querySelector('.filtered-search').value = 'none';
+      tokensContainer.querySelector('.filtered-search').value = 'none';
 
       subject.moveInputToTheRight();
       const value = tokensContainer.querySelector('.js-visual-token .value');
@@ -643,7 +661,7 @@ describe('Filtered Search Visual Tokens', () => {
 
     it('converts input into search term token if last token is valid', () => {
       tokensContainer.innerHTML = `
-        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', 'none')}
+        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '=', 'none')}
         ${FilteredSearchSpecHelper.createInputHTML()}
         ${bugLabelToken.outerHTML}
       `;
@@ -658,7 +676,7 @@ describe('Filtered Search Visual Tokens', () => {
 
     it('moves the input to the right most element', () => {
       tokensContainer.innerHTML = `
-        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', 'none')}
+        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '=', 'none')}
         ${FilteredSearchSpecHelper.createInputHTML()}
         ${bugLabelToken.outerHTML}
       `;
@@ -670,8 +688,8 @@ describe('Filtered Search Visual Tokens', () => {
 
     it('tokenizes input even if input is the right most element', () => {
       tokensContainer.innerHTML = `
-        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', 'none')}
-        ${FilteredSearchSpecHelper.createNameFilterVisualTokenHTML('label')}
+        ${FilteredSearchSpecHelper.createFilterVisualTokenHTML('label', '=', 'none')}
+        ${FilteredSearchSpecHelper.createNameOperatorFilterVisualTokenHTML('label')}
         ${FilteredSearchSpecHelper.createInputHTML('', '~bug')}
       `;
 

spec/javascripts/filtered_search/issues_filtered_search_token_keys_spec.js

@@ -138,6 +138,7 @@ describe('Issues Filtered Search Token Keys', () => {
       const conditions = IssuableFilteredSearchTokenKeys.getConditions();
       const result = IssuableFilteredSearchTokenKeys.searchByConditionKeyValue(
         conditions[0].tokenKey,
+        conditions[0].operator,
         conditions[0].value,
       );
 

spec/javascripts/filtered_search/visual_token_value_spec.js

@@ -10,9 +10,11 @@ describe('Filtered Search Visual Tokens', () => {
     const tokenNameElement = tokenElement.querySelector('.name');
     const tokenValueContainer = tokenElement.querySelector('.value-container');
     const tokenValueElement = tokenValueContainer.querySelector('.value');
+    const tokenOperatorElement = tokenElement.querySelector('.operator');
     const tokenType = tokenNameElement.innerText.toLowerCase();
     const tokenValue = tokenValueElement.innerText;
-    const subject = new VisualTokenValue(tokenValue, tokenType);
+    const tokenOperator = tokenOperatorElement.innerText;
+    const subject = new VisualTokenValue(tokenValue, tokenType, tokenOperator);
     return { subject, tokenValueContainer, tokenValueElement };
   };
 
@@ -28,8 +30,8 @@ describe('Filtered Search Visual Tokens', () => {
     `);
     tokensContainer = document.querySelector('.tokens-container');
 
-    authorToken = FilteredSearchSpecHelper.createFilterVisualToken('author', '@user');
-    bugLabelToken = FilteredSearchSpecHelper.createFilterVisualToken('label', '~bug');
+    authorToken = FilteredSearchSpecHelper.createFilterVisualToken('author', '=', '@user');
+    bugLabelToken = FilteredSearchSpecHelper.createFilterVisualToken('label', '=', '~bug');
   });
 
   describe('updateUserTokenAppearance', () => {
@@ -140,10 +142,12 @@ describe('Filtered Search Visual Tokens', () => {
 
     const missingLabelToken = FilteredSearchSpecHelper.createFilterVisualToken(
       'label',
+      '=',
       '~doesnotexist',
     );
     const spaceLabelToken = FilteredSearchSpecHelper.createFilterVisualToken(
       'label',
+      '=',
       '~"some space"',
     );
 

spec/javascripts/helpers/filtered_search_spec_helper.js

 export default class FilteredSearchSpecHelper {
-  static createFilterVisualTokenHTML(name, value, isSelected) {
-    return FilteredSearchSpecHelper.createFilterVisualToken(name, value, isSelected).outerHTML;
+  static createFilterVisualTokenHTML(name, operator, value, isSelected) {
+    return FilteredSearchSpecHelper.createFilterVisualToken(name, operator, value, isSelected)
+      .outerHTML;
   }
 
-  static createFilterVisualToken(name, value, isSelected = false) {
+  static createFilterVisualToken(name, operator, value, isSelected = false) {
     const li = document.createElement('li');
     li.classList.add('js-visual-token', 'filtered-search-token', `search-token-${name}`);
 
     li.innerHTML = `
       <div class="selectable ${isSelected ? 'selected' : ''}" role="button">
         <div class="name">${name}</div>
+        <div class="operator">${operator}</div>
         <div class="value-container">
           <div class="value">${value}</div>
           <div class="remove-token" role="button">
@@ -30,6 +32,15 @@ export default class FilteredSearchSpecHelper {
     `;
   }
 
+  static createNameOperatorFilterVisualTokenHTML(name, operator) {
+    return `
+      <li class="js-visual-token filtered-search-token">
+        <div class="name">${name}</div>
+        <div class="operator">${operator}</div>
+      </li>
+    `;
+  }
+
   static createSearchVisualToken(name) {
     const li = document.createElement('li');
     li.classList.add('js-visual-token', 'filtered-search-term');

spec/support/helpers/filtered_search_helpers.rb

@@ -26,7 +26,7 @@ module FilteredSearchHelpers
   # Select a label clicking in the search dropdown instead
   # of entering label names on the input.
   def select_label_on_dropdown(label_title)
-    input_filtered_search("label:", submit: false)
+    input_filtered_search("label=", submit: false)
 
     within('#js-dropdown-label') do
       wait_for_requests
@@ -71,7 +71,7 @@ module FilteredSearchHelpers
   end
 
   def init_label_search
-    filtered_search.set('label:')
+    filtered_search.set('label=')
     # This ensures the dropdown is shown
     expect(find('#js-dropdown-label')).not_to have_css('.filter-dropdown-loading')
   end
@@ -90,6 +90,7 @@ module FilteredSearchHelpers
         el = token_elements[index]
 
         expect(el.find('.name')).to have_content(token[:name])
+        expect(el.find('.operator')).to have_content(token[:operator]) if token[:operator].present?
         expect(el.find('.value')).to have_content(token[:value]) if token[:value].present?
 
         # gl-emoji content is blank when the emoji unicode is not supported
@@ -101,8 +102,8 @@ module FilteredSearchHelpers
     end
   end
 
-  def create_token(token_name, token_value = nil, symbol = nil)
-    { name: token_name, value: "#{symbol}#{token_value}" }
+  def create_token(token_name, token_value = nil, symbol = nil, token_operator = '=')
+    { name: token_name, operator: token_operator, value: "#{symbol}#{token_value}" }
   end
 
   def author_token(author_name = nil)
@@ -113,9 +114,9 @@ module FilteredSearchHelpers
     create_token('Assignee', assignee_name)
   end
 
-  def milestone_token(milestone_name = nil, has_symbol = true)
+  def milestone_token(milestone_name = nil, has_symbol = true, operator = '=')
     symbol = has_symbol ? '%' : nil
-    create_token('Milestone', milestone_name, symbol)
+    create_token('Milestone', milestone_name, symbol, operator)
   end
 
   def release_token(release_tag = nil)

spec/support/shared_examples/features/issuables_user_dropdown_behaviors_shared_examples.rb

@@ -13,7 +13,7 @@ shared_examples 'issuable user dropdown behaviors' do
       it 'only includes members of the project/group' do
         visit issuables_path
 
-        filtered_search.set("#{dropdown}:")
+        filtered_search.set("#{dropdown}=")
 
         expect(find("#js-dropdown-#{dropdown} .filter-dropdown")).to have_content(user_in_dropdown.name)
         expect(find("#js-dropdown-#{dropdown} .filter-dropdown")).not_to have_content(user_not_in_dropdown.name)