ash/wm/system_background_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/system_background_controller.h"
   6
   7 #include "ui/aura/root_window.h"
   8 #include "ui/compositor/layer.h"
   9 #include "ui/compositor/layer_type.h"
  10
  11 namespace ash {
  12 namespace internal {
  13
  14 namespace {
  15
  16 #if defined(OS_CHROMEOS)
  17 // Background color used for the Chrome OS boot splash screen.
  18 const SkColor kChromeOsBootColor = SkColorSetARGB(0xff, 0xfe, 0xfe, 0xfe);
  19 #endif
  20
  21 }  // namespace
  22
  23 SystemBackgroundController::SystemBackgroundController(
  24     aura::RootWindow* root_window,
  25     SkColor color)
  26     : root_window_(root_window),
  27       layer_(new ui::Layer(ui::LAYER_SOLID_COLOR)) {
  28   root_window_->AddRootWindowObserver(this);
  29   layer_->SetColor(color);
  30
  31   ui::Layer* root_layer = root_window_->layer();
  32   layer_->SetBounds(gfx::Rect(root_layer->bounds().size()));
  33   root_layer->Add(layer_.get());
  34   root_layer->StackAtBottom(layer_.get());
  35 }
  36
  37 SystemBackgroundController::~SystemBackgroundController() {
  38   root_window_->RemoveRootWindowObserver(this);
  39 }
  40
  41 void SystemBackgroundController::SetColor(SkColor color) {
  42   layer_->SetColor(color);
  43 }
  44
  45 void SystemBackgroundController::OnRootWindowResized(
  46     const aura::RootWindow* root,
  47     const gfx::Size& old_size) {
  48   DCHECK_EQ(root_window_, root);
  49   layer_->SetBounds(gfx::Rect(root_window_->layer()->bounds().size()));
  50 }
  51
  52 }  // namespace internal
  53 }  // namespace ash