ash/desktop_background/desktop_background_widget_controller.cc

   1 // Copyright (c) 2012 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/desktop_background/desktop_background_widget_controller.h"
   6
   7 #include "ash/ash_export.h"
   8 #include "ui/aura/root_window.h"
   9 #include "ui/aura/window_property.h"
  10 #include "ui/views/widget/widget.h"
  11
  12 // Exported for tests.
  13 DECLARE_EXPORTED_WINDOW_PROPERTY_TYPE(
  14     ASH_EXPORT, ash::internal::DesktopBackgroundWidgetController*);
  15 DECLARE_EXPORTED_WINDOW_PROPERTY_TYPE(
  16     ASH_EXPORT, ash::internal::AnimatingDesktopController*);
  17
  18 namespace ash {
  19 namespace internal {
  20
  21 DEFINE_OWNED_WINDOW_PROPERTY_KEY(DesktopBackgroundWidgetController,
  22                                  kDesktopController, NULL);
  23 DEFINE_OWNED_WINDOW_PROPERTY_KEY(AnimatingDesktopController,
  24                                  kAnimatingDesktopController, NULL);
  25
  26 DesktopBackgroundWidgetController::DesktopBackgroundWidgetController(
  27     views::Widget* widget) : widget_(widget) {
  28   DCHECK(widget_);
  29   widget_->AddObserver(this);
  30 }
  31
  32 DesktopBackgroundWidgetController::DesktopBackgroundWidgetController(
  33     ui::Layer* layer) : widget_(NULL) {
  34   layer_.reset(layer);
  35 }
  36
  37 DesktopBackgroundWidgetController::~DesktopBackgroundWidgetController() {
  38   if (widget_) {
  39     widget_->RemoveObserver(this);
  40     widget_->CloseNow();
  41     widget_ = NULL;
  42   } else if (layer_.get())
  43     layer_.reset(NULL);
  44 }
  45
  46 void DesktopBackgroundWidgetController::OnWidgetDestroying(
  47     views::Widget* widget) {
  48   widget_->RemoveObserver(this);
  49   widget_ = NULL;
  50 }
  51
  52 void DesktopBackgroundWidgetController::SetBounds(gfx::Rect bounds) {
  53   if (widget_)
  54     widget_->SetBounds(bounds);
  55   else if (layer_.get())
  56     layer_->SetBounds(bounds);
  57 }
  58
  59 bool DesktopBackgroundWidgetController::Reparent(aura::RootWindow* root_window,
  60                                                  int src_container,
  61                                                  int dest_container) {
  62   if (widget_) {
  63     views::Widget::ReparentNativeView(widget_->GetNativeView(),
  64         root_window->GetChildById(dest_container));
  65     return true;
  66   }
  67   if (layer_.get()) {
  68     ui::Layer* layer = layer_.get();
  69     root_window->GetChildById(src_container)->layer()->Remove(layer);
  70     root_window->GetChildById(dest_container)->layer()->Add(layer);
  71     return true;
  72   }
  73   // Nothing to reparent.
  74   return false;
  75 }
  76
  77 AnimatingDesktopController::AnimatingDesktopController(
  78     DesktopBackgroundWidgetController* component) {
  79   controller_.reset(component);
  80 }
  81
  82 AnimatingDesktopController::~AnimatingDesktopController() {
  83 }
  84
  85 void AnimatingDesktopController::StopAnimating() {
  86   if (controller_) {
  87     ui::Layer* layer = controller_->layer() ? controller_->layer() :
  88         controller_->widget()->GetNativeView()->layer();
  89     layer->GetAnimator()->StopAnimating();
  90   }
  91 }
  92
  93 DesktopBackgroundWidgetController* AnimatingDesktopController::GetController(
  94     bool pass_ownership) {
  95   if (pass_ownership)
  96     return controller_.release();
  97   return controller_.get();
  98 }
  99
 100 }  // namespace internal
 101 }  // namespace ash