[gnome-shell/wip/re-search: 139/151] workspaceThumbnail: Rename show(), hide() and add new methods

[Jasper St. Pierre <jstpierre src gnome org>]

commit a3a3f24ed3b028196a95527583e5a9bee0ef4489
Author: Tanner Doshier <doshitan gmail com>
Date:   Thu Jul 26 12:10:16 2012 -0500

    workspaceThumbnail: Rename show(), hide() and add new methods
    
    show() and hide() now slide the thumbnails in and out, respectively. The old
    show and hide are now _createThumbnails and _destroyThumbnails. We only care
    about these thumbnails while in the overview, so create them when entering and
    destroy them on exit.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=682050

 js/ui/workspaceThumbnail.js |   52 +++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 50 insertions(+), 2 deletions(-)
---
diff --git a/js/ui/workspaceThumbnail.js b/js/ui/workspaceThumbnail.js
index 9697aa1..3a54320 100644
--- a/js/ui/workspaceThumbnail.js
+++ b/js/ui/workspaceThumbnail.js
@@ -526,6 +526,8 @@ const ThumbnailsBox = new Lang.Class({
         this._dropPlaceholder = new St.Bin({ style_class: 'placeholder' });
         this.actor.add_actor(this._dropPlaceholder);
 
+        this.visible = true;
+
         this._targetScale = 0;
         this._scale = 0;
         this._pendingScaleUpdate = false;
@@ -544,6 +546,11 @@ const ThumbnailsBox = new Lang.Class({
         this.actor.connect('scroll-event',
                            Lang.bind(this, this._onScrollEvent));
 
+        Main.overview.connect('showing',
+                              Lang.bind(this, this._createThumbnails));
+        Main.overview.connect('hidden',
+                              Lang.bind(this, this._destroyThumbnails));
+
         Main.overview.connect('app-drag-begin',
                               Lang.bind(this, this._onDragBegin));
         Main.overview.connect('app-drag-end',
@@ -721,7 +728,7 @@ const ThumbnailsBox = new Lang.Class({
         }
     },
 
-    show: function() {
+    _createThumbnails: function() {
         this._switchWorkspaceNotifyId =
             global.window_manager.connect('switch-workspace',
                                           Lang.bind(this, this._activeWorkspaceChanged));
@@ -751,7 +758,7 @@ const ThumbnailsBox = new Lang.Class({
         this.addThumbnails(0, global.screen.n_workspaces);
     },
 
-    hide: function() {
+    _destroyThumbnails: function() {
         if (this._switchWorkspaceNotifyId > 0) {
             global.window_manager.disconnect(this._switchWorkspaceNotifyId);
             this._switchWorkspaceNotifyId = 0;
@@ -766,6 +773,45 @@ const ThumbnailsBox = new Lang.Class({
         this._thumbnails = [];
     },
 
+    _computeThumbnailsX: function() {
+        this._targetX = this.actor.get_x();
+
+        let rtl = (this.actor.get_text_direction() == Clutter.TextDirection.RTL);
+
+        if (rtl)
+            this._hiddenX = -this.actor.width;
+        else
+            this._hiddenX = this._targetX + this.actor.width;
+    },
+
+    show: function() {
+        if (this.visible)
+            return;
+
+        this.visible = true;
+
+        this.actor.show();
+        Tweener.addTween(this.actor, { translation_x: this._targetX,
+                                       transition: 'easeOutQuad',
+                                       time: SLIDE_ANIMATION_TIME
+                                     });
+    },
+
+    hide: function() {
+        if (!this.visible)
+            return;
+
+        this.visible = false;
+
+        Tweener.addTween(this.actor, { translation_x: this._hiddenX,
+                                       transition: 'easeOutQuad',
+                                       time: SLIDE_ANIMATION_TIME,
+                                       onComplete: Lang.bind(this, function () {
+                                           this.actor.hide();
+                                       })
+                                     });
+    },
+
     _workspacesChanged: function() {
         let oldNumWorkspaces = this._thumbnails.length;
         let newNumWorkspaces = global.screen.n_workspaces;
@@ -955,6 +1001,8 @@ const ThumbnailsBox = new Lang.Class({
                                    onCompleteScope: this
                                  });
             });
+
+        this._computeThumbnailsX();
     },
 
     _queueUpdateStates: function() {