PageUp an PageDown implemented

src/lib/co/src/co_xhelp.cpp

@@ -47,6 +47,14 @@ CoXHelp *CoXHelp::default_xhelp = 0;
 
 // Prototype declarations
 
+static void xhelp_open_URL_cb( void *ctx, char *url)
+{
+  CoXHelp *xhelp = (CoXHelp *)ctx;
+
+  if ( xhelp->open_URL_cb)
+    (xhelp->open_URL_cb)( xhelp->parent_ctx, url);
+}
+
 static void xhelp_open_input_dialog( CoXHelp *xhelp, char *text, char *title,
 	char *init_text,
 	void (*ok_cb)( CoXHelp *, char *))
@@ -283,7 +291,7 @@ CoXHelp::CoXHelp(
 	xhelp_eUtility	utility,
         int             *xa_sts) :
  	parent_wid(xa_parent_wid), parent_ctx(xa_parent_ctx), 
-	client_data(0), close_cb(0), set_focus_disabled(0), 
+	client_data(0), close_cb(0), open_URL_cb(0), set_focus_disabled(0), 
 	displayed(0)
 {
   char		uid_filename[120] = {"xtt_xhelp.uid"};
@@ -373,6 +381,7 @@ CoXHelp::CoXHelp(
 
   xhelpnav = new CoXHelpNav( (void *)this, xhelpnav_form, title, utility, &brow_widget, 
                              &sts);
+  xhelpnav->open_URL_cb = xhelp_open_URL_cb;
 
   // XtPopup( parent_wid, XtGrabNone);
   // displayed = 1;

src/lib/co/src/co_xhelp.h

@@ -37,6 +37,7 @@ class CoXHelp {
     Widget	xhelpnav_form;
     void	*client_data;
     void	(*close_cb) ( void *, void *);
+    void 	(*open_URL_cb)( void *, char *);
     int		set_focus_disabled;
     XtIntervalId focus_timerid;
     int         displayed;

src/lib/co/src/co_xhelpnav.cpp

@@ -64,8 +64,10 @@ static int xhelpnav_init_brow_cb( BrowCtx *ctx, void *client_data);
 static int xhelpnav_init_brow_base_cb( FlowCtx *fctx, void *client_data);
 static int help_cmp_items( const void *node1, const void *node2);
 
-static void xhelpnav_open_URL( char *link)
+static void xhelpnav_open_URL( CoXHelpNav *xhelpnav, char *url)
 {
+  if ( xhelpnav->open_URL_cb)
+    (xhelpnav->open_URL_cb)( xhelpnav->parent_ctx, url);
 }
 
 //
@@ -288,7 +290,7 @@ CoXHelpNav::CoXHelpNav(
 	pwr_tStatus *status) :
 	parent_ctx(xn_parent_ctx), parent_wid(xn_parent_wid),
 	brow_cnt(0), closing_down(0), displayed(0), utility(xn_utility),
-	search_node(0), search_strict(false)
+	search_node(0), search_strict(false), open_URL_cb(0)
 {
   strcpy( name, xn_name);
   strcpy( search_str, "");
@@ -444,6 +446,14 @@ static int xhelpnav_brow_cb( FlowCtx *ctx, flow_tEvent event)
         free( node_list);
       break;
     }
+    case flow_eEvent_Key_PageDown: {
+      brow_Page( xhelpnav->brow->ctx, 0.95);
+      break;
+    }
+    case flow_eEvent_Key_PageUp: {
+      brow_Page( xhelpnav->brow->ctx, -0.95);
+      break;
+    }
     case flow_eEvent_Key_Return:
     case flow_eEvent_Key_Right:
     {
@@ -794,7 +804,7 @@ int HItemHelpImage::doubleclick_action( CoXHelpNavBrow *brow, CoXHelpNav *xhelpn
   {
     if ( (strstr( link, ".htm") != 0) || (strstr( link, ".pdf") != 0)) {
       // Open the url
-      xhelpnav_open_URL( link);
+      xhelpnav_open_URL( xhelpnav, link);
     }
     else {
       if ( file_name[0] == 0)
@@ -916,7 +926,7 @@ int HItemHelp::doubleclick_action( CoXHelpNavBrow *brow, CoXHelpNav *xhelpnav, d
   {
     if ( (strstr( link, ".htm") != 0) || (strstr( link, ".pdf") != 0)) {
       // Open the url
-      xhelpnav_open_URL( link);
+      xhelpnav_open_URL( xhelpnav, link);
     }
     else {
       if ( file_name[0] == 0)
@@ -983,7 +993,7 @@ int HItemHelpBold::doubleclick_action( CoXHelpNavBrow *brow, CoXHelpNav *xhelpna
   {
     if ( (strstr( link, ".htm") != 0) || (strstr( link, ".pdf") != 0)) {
       // Open the url
-      xhelpnav_open_URL( link);
+      xhelpnav_open_URL( xhelpnav, link);
     }
     else {
       if ( file_name[0] == 0)

src/lib/co/src/co_xhelpnav.h

@@ -106,6 +106,7 @@ class CoXHelpNav {
     brow_tNode		search_node;
     char		search_str[80];
     bool 		search_strict;
+    void 		(*open_URL_cb)( void *, char *);
 
     void print( char *filename);
     void zoom( double zoom_factor);