1 // Copyright 2014 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 "athena/screen/background_controller.h" 6 7 #include "ui/aura/window.h" 8 #include "ui/compositor/layer.h" 9 #include "ui/gfx/canvas.h" 10 #include "ui/gfx/image/image_skia.h" 11 #include "ui/views/view.h" 12 #include "ui/views/widget/widget.h" 13 14 namespace athena { 15 16 class BackgroundView : public views::View { 17 public: BackgroundView()18 BackgroundView() {} ~BackgroundView()19 virtual ~BackgroundView() {} 20 SetImage(const gfx::ImageSkia & image)21 void SetImage(const gfx::ImageSkia& image) { 22 image_ = image; 23 SchedulePaint(); 24 } 25 26 // views::View OnPaint(gfx::Canvas * canvas)27 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE { 28 canvas->DrawImageInt(image_, 29 0, 30 0, 31 image_.width(), 32 image_.height(), 33 0, 34 0, 35 width(), 36 height(), 37 true); 38 } 39 40 private: 41 gfx::ImageSkia image_; 42 43 DISALLOW_COPY_AND_ASSIGN(BackgroundView); 44 }; 45 BackgroundController(aura::Window * container)46BackgroundController::BackgroundController(aura::Window* container) { 47 // TODO(oshima): Using widget to just draw an image is probably 48 // overkill. Just use WindowDelegate to draw the background and 49 // remove dependency to ui/views. 50 51 views::Widget* background_widget = new views::Widget; 52 views::Widget::InitParams params( 53 views::Widget::InitParams::TYPE_WINDOW_FRAMELESS); 54 params.accept_events = false; 55 params.parent = container; 56 background_widget->Init(params); 57 background_widget->GetNativeWindow()->layer()->SetMasksToBounds(true); 58 background_view_ = new BackgroundView; 59 background_widget->SetContentsView(background_view_); 60 background_widget->GetNativeView()->SetName("BackgroundWidget"); 61 background_widget->Show(); 62 } 63 ~BackgroundController()64BackgroundController::~BackgroundController() { 65 // background_widget is owned by the container and will be deleted 66 // when the container is deleted. 67 } 68 SetImage(const gfx::ImageSkia & image)69void BackgroundController::SetImage(const gfx::ImageSkia& image) { 70 // TODO(oshima): implement cross fede animation. 71 background_view_->SetImage(image); 72 } 73 74 } // namespace athena 75