XWIKI-21729: Bad interaction between quick search and the drawer

* Fired an event that was overwise unused
* Fixed its listener
* Added an optional argument for the suggest resetTimeout function (to allow a more precise control of the suggest panel)

xwiki-platform-core/xwiki-platform-search/xwiki-platform-search-ui/src/main/resources/XWiki/QuickSearchUIX.xml

@@ -136,6 +136,7 @@
       globalSearch.addClass('globalsearch-close');
       globalSearchButton.attr('aria-expanded', 'false');
       globalSearchInput.attr('disabled','');
+      document.fire('xwiki:suggest:collapsed');
     }
 
     // Open the global search when the user click on the global search button

xwiki-platform-core/xwiki-platform-web/xwiki-platform-web-war/src/main/webapp/resources/uicomponents/search/searchSuggest.js

@@ -118,7 +118,8 @@ var XWiki = (function (XWiki) {
      * Callback triggered when the suggest element is collapsed, because of a focusout event for example.
      */
     onSuggestCollapsed: function(event) {
-      this.suggest.clearSuggestions();
+      /* We match the collapse of the input field timing to close the suggest panel. */
+      this.suggest.resetTimeout(300);
     },
 
     /**

xwiki-platform-core/xwiki-platform-web/xwiki-platform-web-war/src/main/webapp/resources/uicomponents/suggest/suggest.js

@@ -1033,11 +1033,14 @@ var XWiki = (function(XWiki){
   /**
    * Reset timeout
    */
-  resetTimeout: function()
+  resetTimeout: function(timeout)
   {
+    if(!timeout) {
+      timeout = 1000;
+    }
     clearTimeout(this.toID);
     var pointer = this;
-    this.toID = setTimeout(function () { pointer.clearSuggestions() }, 1000);
+    this.toID = setTimeout(function () { pointer.clearSuggestions() }, timeout);
   },
 
   /**