src/ash/wm/workspace/colored_window_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/wm/workspace/colored_window_controller.h"
   6
   7 #include "ash/shell_window_ids.h"
   8 #include "ash/wm/window_state.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   wm::GetWindowState(widget->GetNativeView())->SetTrackedByWorkspace(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