src/ash/wm/overview/window_selector_window.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ash/wm/overview/window_selector_window.h"
   6
   7 #include "ash/screen_util.h"
   8 #include "ash/shell.h"
   9 #include "ash/shell_window_ids.h"
  10 #include "ash/wm/overview/scoped_transform_overview_window.h"
  11 #include "ui/aura/window.h"
  12 #include "ui/compositor/scoped_layer_animation_settings.h"
  13 #include "ui/gfx/rect.h"
  14 #include "ui/gfx/transform.h"
  15 #include "ui/views/controls/button/image_button.h"
  16 #include "ui/views/widget/widget.h"
  17
  18 namespace ash {
  19
  20 WindowSelectorWindow::WindowSelectorWindow(aura::Window* window)
  21     : transform_window_(window) {
  22   window->AddObserver(this);
  23 }
  24
  25 WindowSelectorWindow::~WindowSelectorWindow() {
  26   if (transform_window_.window())
  27     transform_window_.window()->RemoveObserver(this);
  28 }
  29
  30 aura::Window* WindowSelectorWindow::GetRootWindow() {
  31   return transform_window_.window()->GetRootWindow();
  32 }
  33
  34 bool WindowSelectorWindow::HasSelectableWindow(const aura::Window* window) {
  35   return transform_window_.window() == window;
  36 }
  37
  38 bool WindowSelectorWindow::Contains(const aura::Window* target) {
  39   return transform_window_.Contains(target);
  40 }
  41
  42 void WindowSelectorWindow::RestoreWindowOnExit(aura::Window* window) {
  43   transform_window_.RestoreWindowOnExit();
  44 }
  45
  46 aura::Window* WindowSelectorWindow::SelectionWindow() {
  47   return transform_window_.window();
  48 }
  49
  50 void WindowSelectorWindow::RemoveWindow(const aura::Window* window) {
  51   DCHECK_EQ(transform_window_.window(), window);
  52   transform_window_.window()->RemoveObserver(this);
  53   transform_window_.OnWindowDestroyed();
  54   WindowSelectorItem::RemoveWindow(window);
  55 }
  56
  57 bool WindowSelectorWindow::empty() const {
  58   return transform_window_.window() == NULL;
  59 }
  60
  61 void WindowSelectorWindow::PrepareForOverview() {
  62   transform_window_.PrepareForOverview();
  63 }
  64
  65 void WindowSelectorWindow::SetItemBounds(aura::Window* root_window,
  66                                          const gfx::Rect& target_bounds,
  67                                          bool animate) {
  68   gfx::Rect src_rect = transform_window_.GetBoundsInScreen();
  69   set_bounds(ScopedTransformOverviewWindow::
  70         ShrinkRectToFitPreservingAspectRatio(src_rect, target_bounds));
  71   transform_window_.SetTransform(root_window,
  72       ScopedTransformOverviewWindow::GetTransformForRect(src_rect, bounds()),
  73       animate);
  74 }
  75
  76 void WindowSelectorWindow::SetOpacity(float opacity) {
  77   transform_window_.window()->layer()->SetOpacity(opacity);
  78   WindowSelectorItem::SetOpacity(opacity);
  79 }
  80
  81 }  // namespace ash