| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ash/wm/boot_splash_screen_chromeos.h" |
| |
| #include "third_party/skia/include/core/SkBitmap.h" |
| #include "ui/aura/root_window.h" |
| #include "ui/base/x/x11_util.h" |
| #include "ui/compositor/layer.h" |
| #include "ui/compositor/layer_type.h" |
| #include "ui/compositor/scoped_layer_animation_settings.h" |
| #include "ui/gfx/canvas.h" |
| |
| namespace ash { |
| namespace internal { |
| |
| // ui::LayerDelegate that copies the aura host window's content to a ui::Layer. |
| class BootSplashScreen::CopyHostContentLayerDelegate |
| : public ui::LayerDelegate { |
| public: |
| explicit CopyHostContentLayerDelegate(aura::RootWindow* root_window) |
| : root_window_(root_window) { |
| } |
| |
| virtual ~CopyHostContentLayerDelegate() {} |
| |
| // ui::LayerDelegate overrides: |
| virtual void OnPaintLayer(gfx::Canvas* canvas) OVERRIDE { |
| // It'd be safer to copy the area to a canvas in the constructor and then |
| // copy from that canvas to this one here, but this appears to work (i.e. we |
| // only call this before we draw our first frame) and it saves us an extra |
| // copy. |
| // TODO(derat): Instead of copying the data, use GLX_EXT_texture_from_pixmap |
| // to create a zero-copy texture (when possible): |
| // https://codereview.chromium.org/10543125 |
| ui::CopyAreaToCanvas(root_window_->GetAcceleratedWidget(), |
| gfx::Rect(root_window_->GetHostOrigin(), root_window_->GetHostSize()), |
| gfx::Point(), canvas); |
| } |
| |
| virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE {} |
| |
| virtual base::Closure PrepareForLayerBoundsChange() OVERRIDE { |
| return base::Closure(); |
| } |
| |
| private: |
| aura::RootWindow* root_window_; // not owned |
| |
| DISALLOW_COPY_AND_ASSIGN(CopyHostContentLayerDelegate); |
| }; |
| |
| BootSplashScreen::BootSplashScreen(aura::RootWindow* root_window) |
| : layer_delegate_(new CopyHostContentLayerDelegate(root_window)), |
| layer_(new ui::Layer(ui::LAYER_TEXTURED)) { |
| layer_->set_delegate(layer_delegate_.get()); |
| |
| ui::Layer* root_layer = root_window->layer(); |
| layer_->SetBounds(gfx::Rect(root_layer->bounds().size())); |
| root_layer->Add(layer_.get()); |
| root_layer->StackAtTop(layer_.get()); |
| } |
| |
| BootSplashScreen::~BootSplashScreen() { |
| } |
| |
| void BootSplashScreen::StartHideAnimation(base::TimeDelta duration) { |
| ui::ScopedLayerAnimationSettings settings(layer_->GetAnimator()); |
| settings.SetTransitionDuration(duration); |
| settings.SetPreemptionStrategy(ui::LayerAnimator::REPLACE_QUEUED_ANIMATIONS); |
| layer_->SetOpacity(0.0f); |
| } |
| |
| } // namespace internal |
| } // namespace ash |