[gnome-shell] legacyTray: Add to ctrl-alt-tab

[Florian Müllner <fmuellner src gnome org>]

commit 775a2ea051b2179764c38d23ace6d8c898eb77ce
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Mar 11 20:44:10 2015 +0100

    legacyTray: Add to ctrl-alt-tab
    
    While legacy status icons are notoriously bad with regard to
    accessibility (well, among many other things), we should still
    make them available via ctrl-alt-tab ...
    
    https://bugzilla.gnome.org/show_bug.cgi?id=746022

 js/ui/legacyTray.js |   15 ++++++++++++++-
 po/POTFILES.in      |    1 +
 2 files changed, 15 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/legacyTray.js b/js/ui/legacyTray.js
index f3d8613..8c23167 100644
--- a/js/ui/legacyTray.js
+++ b/js/ui/legacyTray.js
@@ -3,6 +3,7 @@ const GObject = imports.gi.GObject;
 const Shell = imports.gi.Shell;
 const St = imports.gi.St;
 
+const CtrlAltTab = imports.ui.ctrlAltTab;
 const Lang = imports.lang;
 const Layout = imports.ui.layout;
 const Main = imports.ui.main;
@@ -53,7 +54,10 @@ const LegacyTray = new Lang.Class({
         this._box = new St.BoxLayout();
         this._slider.add_actor(this._box);
 
-        this._concealHandle = new St.Button({ style_class: 'legacy-tray-handle' });
+        this._concealHandle = new St.Button({ style_class: 'legacy-tray-handle',
+                                              /* translators: 'Hide' is a verb */
+                                              accessible_name: _("Hide tray"),
+                                              can_focus: true });
         this._concealHandle.child = new St.Icon({ icon_name: 'go-previous-symbolic' });
         this._box.add_child(this._concealHandle);
 
@@ -83,6 +87,9 @@ const LegacyTray = new Lang.Class({
 
         Main.layoutManager.addChrome(this.actor, { affectsInputRegion: false });
         Main.layoutManager.trackChrome(this._slider, { affectsInputRegion: true });
+        Main.ctrlAltTabManager.addGroup(this.actor,
+                                        _("Status Icons"), 'focus-legacy-systray-symbolic',
+                                        { sortGroup: CtrlAltTab.SortGroup.BOTTOM });
 
         this._trayManager = new Shell.TrayManager();
         this._trayIconAddedId = this._trayManager.connect('tray-icon-added', Lang.bind(this, 
this._onTrayIconAdded));
@@ -121,14 +128,20 @@ const LegacyTray = new Lang.Class({
             return;
 
         let button = new St.Button({ child: icon,
+                                     style_class: 'legacy-tray-icon',
                                      button_mask: St.ButtonMask.ONE |
                                                   St.ButtonMask.TWO |
                                                   St.ButtonMask.THREE,
+                                     can_focus: true,
                                      x_fill: true, y_fill: true });
         button.connect('clicked',
             function() {
                 icon.click(Clutter.get_current_event());
             });
+        button.connect('key-focus-in', Lang.bind(this,
+            function() {
+                this._concealHandle.show();
+            }));
 
         this._iconBox.add_actor(button);
         this._sync();
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 69942b8..aa535bb 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -30,6 +30,7 @@ js/ui/endSessionDialog.js
 js/ui/extensionDownloader.js
 js/ui/extensionSystem.js
 js/ui/keyboard.js
+js/ui/legacyTray.js
 js/ui/lookingGlass.js
 js/ui/main.js
 js/ui/messageTray.js