[gnome-shell] Show "No matching results" if that's the case

[Colin Walters <walters src gnome org>]

commit 69c8aef6c275a989c9f28a695b8d7fc2a738c830
Author: Colin Walters <walters verbum org>
Date:   Wed Jan 6 15:00:49 2010 -0500

    Show "No matching results" if that's the case
    
    This also fixes backtracking from no matching results.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=606209

 js/ui/dash.js |   19 +++++++++++++------
 1 files changed, 13 insertions(+), 6 deletions(-)
---
diff --git a/js/ui/dash.js b/js/ui/dash.js
index e50c853..0d941a7 100644
--- a/js/ui/dash.js
+++ b/js/ui/dash.js
@@ -433,9 +433,8 @@ SearchResults.prototype = {
 
         this.actor = new St.BoxLayout({ name: 'dashSearchResults',
                                         vertical: true });
-        this._searchingNotice = new St.Label({ style_class: 'dash-search-starting',
-                                               text: _("Searching...") });
-        this.actor.add(this._searchingNotice);
+        this._statusText = new St.Label({ style_class: 'dash-search-statustext' });
+        this.actor.add(this._statusText);
         this._selectedProvider = -1;
         this._providers = this._searchSystem.getProviders();
         this._providerMeta = [];
@@ -485,13 +484,14 @@ SearchResults.prototype = {
 
     reset: function() {
         this._searchSystem.reset();
-        this._searchingNotice.hide();
+        this._statusText.hide();
         this._clearDisplay();
     },
 
     startingSearch: function() {
         this.reset();
-        this._searchingNotice.show();
+        this._statusText.set_text(_("Searching..."));
+        this._statusText.show();
     },
 
     _metaForProvider: function(provider) {
@@ -501,9 +501,16 @@ SearchResults.prototype = {
     updateSearch: function (searchString) {
         let results = this._searchSystem.updateSearch(searchString);
 
-        this._searchingNotice.hide();
         this._clearDisplay();
 
+        if (results.length == 0) {
+            this._statusText.set_text(_("No matching results."));
+            this._statusText.show();
+            return true;
+        } else {
+            this._statusText.hide();
+        }
+
         let terms = this._searchSystem.getTerms();
 
         for (let i = 0; i < results.length; i++) {