[gnome-shell] Remove taskbar-highlighting support from Alt-Tab popup

[Dan Winship <danw src gnome org>]

commit e79b15c645148c75cb02eb766108534bb8890bae
Author: Dan Winship <danw gnome org>
Date:   Tue Sep 15 21:26:11 2009 -0400

    Remove taskbar-highlighting support from Alt-Tab popup
    
    The "lightbox" effect had support for highlighting a particular
    rectangular region on the taskbar when Alt-Tabbing to a minimized
    window. Since we no longer use the taskbar, this code is just cruft
    now.
    
    Part of https://bugzilla.gnome.org/show_bug.cgi?id=590563

 js/ui/altTab.js |   87 ++++++------------------------------------------------
 1 files changed, 10 insertions(+), 77 deletions(-)
---
diff --git a/js/ui/altTab.js b/js/ui/altTab.js
index 3dfcac6..206292a 100644
--- a/js/ui/altTab.js
+++ b/js/ui/altTab.js
@@ -78,22 +78,14 @@ AltTabPopup.prototype = {
         global.stage.add_actor(this.actor);
 
         // Dark translucent window used to cover all but the
-        // currently-selected window while Alt-Tabbing. Actually
-        // contains four actors which can we rearrange to create
-        // a hole in the overlay.
-        this._overlay = new Clutter.Group({ reactive: true });
-        this._overlay_top = new Clutter.Rectangle({ color: OVERLAY_COLOR,
-                                                    border_width: 0 });
-        this._overlay_bottom = new Clutter.Rectangle({ color: OVERLAY_COLOR,
-                                                       border_width: 0 });
-        this._overlay_left = new Clutter.Rectangle({ color: OVERLAY_COLOR,
-                                                     border_width: 0 });
-        this._overlay_right = new Clutter.Rectangle({ color: OVERLAY_COLOR,
-                                                      border_width: 0 });
-        this._overlay.add_actor(this._overlay_top);
-        this._overlay.add_actor(this._overlay_bottom);
-        this._overlay.add_actor(this._overlay_left);
-        this._overlay.add_actor(this._overlay_right);
+        // currently-selected window while Alt-Tabbing.
+        this._overlay = new Clutter.Rectangle({ color: OVERLAY_COLOR,
+                                                x: 0,
+                                                y: 0,
+                                                width: global.screen_width,
+                                                height: global.screen_height,
+                                                border_width: 0,
+                                                reactive: true });
     },
 
     addWindow : function(win) {
@@ -117,14 +109,6 @@ AltTabPopup.prototype = {
             }
         }
 
-        item.visible = item.metaWindow.showing_on_its_workspace();
-
-        if (!item.visible) {
-            let rect = new Meta.Rectangle();
-            if (item.metaWindow.get_icon_geometry(rect))
-                item.icon_rect = rect;
-        }
-
         item.n = this._items.length;
         this._items.push(item);
 
@@ -209,11 +193,8 @@ AltTabPopup.prototype = {
             }
             this._indicator.show();
 
-            if (this._overlay.visible) {
-                if (this._selected.visible)
-                    this._selected.window.raise(this._overlay);
-                this._adjust_overlay();
-            }
+            if (this._overlay.visible)
+                this._selected.window.raise(this._overlay);
 
             this._allocationChangedId =
                 this._selected.box.connect('notify::allocation',
@@ -227,53 +208,5 @@ AltTabPopup.prototype = {
     _allocationChanged : function() {
         if (this._selected)
             this.select(this._selected.n);
-    },
-
-    _adjust_overlay : function() {
-        if (this._selected && this._selected.icon_rect) {
-            // We want to highlight a specific rectangle within the
-            // task bar, so rearrange the pieces of the overlay to
-            // cover the whole screen except that rectangle
-
-            let rect = this._selected.icon_rect;
-
-            this._overlay_top.x = 0;
-            this._overlay_top.y = 0;
-            this._overlay_top.width = global.screen_width;
-            this._overlay_top.height = rect.y;
-
-            this._overlay_left.x = 0;
-            this._overlay_left.y = rect.y;
-            this._overlay_left.width = rect.x;
-            this._overlay_left.height = rect.height;
-            this._overlay_left.show();
-
-            this._overlay_right.x = rect.x + rect.width;
-            this._overlay_right.y = rect.y;
-            this._overlay_right.width = global.screen_width - rect.x - rect.width;
-            this._overlay_right.height = rect.height;
-            this._overlay_right.show();
-
-            this._overlay_bottom.x = 0;
-            this._overlay_bottom.y = rect.y + rect.height;
-            this._overlay_bottom.width = global.screen_width;
-            this._overlay_bottom.height = global.screen_height - rect.y - rect.height;
-            this._overlay_bottom.show();
-        } else {
-            // Either there's no current selection, or the selection
-            // is a visible window. Make the overlay cover the whole
-            // screen. select() will raise the selected window over
-            // the overlay.
-
-            this._overlay_top.x = 0;
-            this._overlay_top.y = 0;
-            this._overlay_top.width = global.screen_width;
-            this._overlay_top.height = global.screen_height;
-            this._overlay_top.show();
-
-            this._overlay_left.hide();
-            this._overlay_right.hide();
-            this._overlay_bottom.hide();
-        }
     }
 };