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      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/wm/workspace/colored_window_controller.h"
      6 
      7 #include "ash/shell_window_ids.h"
      8 #include "ash/wm/property_util.h"
      9 #include "ui/aura/client/aura_constants.h"
     10 #include "ui/aura/root_window.h"
     11 #include "ui/gfx/canvas.h"
     12 #include "ui/views/widget/widget.h"
     13 #include "ui/views/widget/widget_delegate.h"
     14 
     15 namespace ash {
     16 namespace internal {
     17 
     18 // View implementation responsible for rendering the background.
     19 class ColoredWindowController::View : public views::WidgetDelegateView {
     20  public:
     21   explicit View(ColoredWindowController* controller);
     22   virtual ~View();
     23 
     24   // Closes the hosting widget.
     25   void Close();
     26 
     27   // WidgetDelegate overrides:
     28   virtual views::View* GetContentsView() OVERRIDE;
     29 
     30  private:
     31   ColoredWindowController* controller_;
     32 
     33   DISALLOW_COPY_AND_ASSIGN(View);
     34 };
     35 
     36 ColoredWindowController::View::View(ColoredWindowController* controller)
     37     : controller_(controller) {
     38 }
     39 
     40 ColoredWindowController::View::~View() {
     41   if (controller_)
     42     controller_->view_ = NULL;
     43 }
     44 
     45 void ColoredWindowController::View::Close() {
     46   controller_ = NULL;
     47   GetWidget()->Close();
     48 }
     49 
     50 views::View* ColoredWindowController::View::GetContentsView() {
     51   return this;
     52 }
     53 
     54 ColoredWindowController::ColoredWindowController(aura::Window* parent,
     55                                                  const std::string& window_name)
     56     : view_(new View(this)) {
     57   views::Widget* widget = new views::Widget;
     58   views::Widget::InitParams params(
     59       views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
     60   params.delegate = view_;
     61   params.parent = parent;
     62   params.can_activate = false;
     63   params.accept_events = false;
     64   params.layer_type = ui::LAYER_SOLID_COLOR;
     65   widget->Init(params);
     66   // Do this so the parent doesn't attempt to enforce any bounds constraints on
     67   // us.
     68   SetTrackedByWorkspace(widget->GetNativeView(), false);
     69   widget->GetNativeView()->SetProperty(aura::client::kAnimationsDisabledKey,
     70                                        true);
     71   widget->GetNativeView()->SetName(window_name);
     72   // The bounds should match the parent exactly. We don't go through
     73   // Widget::SetBounds() as that may try to place on a different display.
     74   widget->GetNativeWindow()->SetBounds(gfx::Rect(parent->bounds()));
     75 }
     76 
     77 ColoredWindowController::~ColoredWindowController() {
     78   if (view_)
     79     view_->Close();
     80 }
     81 
     82 void ColoredWindowController::SetColor(SkColor color) {
     83   if (view_)
     84     view_->GetWidget()->GetNativeView()->layer()->SetColor(color);
     85 }
     86 
     87 views::Widget* ColoredWindowController::GetWidget() {
     88   return view_ ? view_->GetWidget() : NULL;
     89 }
     90 
     91 }  // namespace internal
     92 }  // namespace ash
     93