Added text filtering to Overview Mode

ash/wm/overview/scoped_transform_overview_window.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/wm/overview/scoped_transform_overview_window.h"
 
 #include "ash/screen_util.h"
 #include "ash/shell_window_ids.h"
 #include "ash/wm/overview/scoped_window_copy.h"
 #include "ash/wm/overview/window_selector_item.h"
@@ skipping 79 matching lines @@
 
 const int ScopedTransformOverviewWindow::kTransitionMilliseconds = 200;
 
 ScopedTransformOverviewWindow::ScopedTransformOverviewWindow(
         aura::Window* window)
     : window_(window),
       minimized_(window->GetProperty(aura::client::kShowStateKey) ==
                  ui::SHOW_STATE_MINIMIZED),
       ignored_by_shelf_(ash::wm::GetWindowState(window)->ignored_by_shelf()),
       overview_started_(false),
-      original_transform_(window->layer()->GetTargetTransform()) {
+      original_transform_(window->layer()->GetTargetTransform()),
+      opacity_(window->layer()->opacity()) {

[flackr, 2014/06/26 17:33:07]

Use GetTargetOpacity so that if instantiated during an animation we exit to the
correct opacity.

[Nina, 2014/06/27 15:20:38]

Done.

 }
 
 ScopedTransformOverviewWindow::~ScopedTransformOverviewWindow() {
   if (window_) {
     WindowSelectorAnimationSettings animation_settings(window_);
     gfx::Transform transform;
     SetTransformOnWindowAndTransientChildren(original_transform_, true);
     if (minimized_ && window_->GetProperty(aura::client::kShowStateKey) !=
         ui::SHOW_STATE_MINIMIZED) {
       // Setting opacity 0 and visible false ensures that the property change
       // to SHOW_STATE_MINIMIZED will not animate the window from its original
       // bounds to the minimized position.
       // Hiding the window needs to be done before the target opacity is 0,
       // otherwise the layer's visibility will not be updated
       // (See VisibilityController::UpdateLayerVisibility).
       window_->Hide();
       window_->layer()->SetOpacity(0);
       window_->SetProperty(aura::client::kShowStateKey,
                            ui::SHOW_STATE_MINIMIZED);
     }
     ash::wm::GetWindowState(window_)->set_ignored_by_shelf(ignored_by_shelf_);
+    window_->layer()->SetOpacity(opacity_);
   }
 }
 
 bool ScopedTransformOverviewWindow::Contains(const aura::Window* target) const {
   for (ScopedVector<ScopedWindowCopy>::const_iterator iter =
       window_copies_.begin(); iter != window_copies_.end(); ++iter) {
     if ((*iter)->GetWindow()->Contains(target))
       return true;
   }
   aura::Window* window = window_;
@@ skipping 18 matching lines @@
 
 void ScopedTransformOverviewWindow::RestoreWindow() {
   if (minimized_ && window_->GetProperty(aura::client::kShowStateKey) ==
       ui::SHOW_STATE_MINIMIZED) {
     window_->Show();
   }
 }
 
 void ScopedTransformOverviewWindow::RestoreWindowOnExit() {
   minimized_ = false;
   original_transform_ = gfx::Transform();

[flackr, 2014/06/26 17:33:07]

Probably should set opacity_ = 1.0f here so that the selected window will not
restore an old opacity of 0.

[Nina, 2014/06/27 15:20:38]

Wow this was a really serious bug, since minimized windows got a free upgrade to
"ghost windows" if selected in the overview. Fixed.

 }
 
 void ScopedTransformOverviewWindow::OnWindowDestroyed() {
   window_ = NULL;
 }
 
 gfx::Rect ScopedTransformOverviewWindow::ShrinkRectToFitPreservingAspectRatio(
     const gfx::Rect& rect,
     const gfx::Rect& bounds) {
   DCHECK(!rect.IsEmpty());
@@ skipping 91 matching lines @@
 }
 
 void ScopedTransformOverviewWindow::PrepareForOverview() {
   DCHECK(!overview_started_);
   overview_started_ = true;
   ash::wm::GetWindowState(window_)->set_ignored_by_shelf(true);
   RestoreWindow();
 }
 
 }  // namespace ash