1 // Copyright 2013 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.
5 #include "ash/wm/boot_splash_screen_chromeos.h"
7 #include "third_party/skia/include/core/SkBitmap.h"
8 #include "ui/aura/window.h"
9 #include "ui/aura/window_tree_host.h"
10 #include "ui/base/x/x11_util.h"
11 #include "ui/compositor/layer.h"
12 #include "ui/compositor/layer_type.h"
13 #include "ui/compositor/scoped_layer_animation_settings.h"
14 #include "ui/gfx/canvas.h"
18 // ui::LayerDelegate that copies the aura host window's content to a ui::Layer.
19 class BootSplashScreen::CopyHostContentLayerDelegate
20 : public ui::LayerDelegate
{
22 explicit CopyHostContentLayerDelegate(aura::WindowTreeHost
* host
)
26 virtual ~CopyHostContentLayerDelegate() {}
28 // ui::LayerDelegate overrides:
29 virtual void OnPaintLayer(gfx::Canvas
* canvas
) OVERRIDE
{
30 // It'd be safer to copy the area to a canvas in the constructor and then
31 // copy from that canvas to this one here, but this appears to work (i.e. we
32 // only call this before we draw our first frame) and it saves us an extra
34 // TODO(derat): Instead of copying the data, use GLX_EXT_texture_from_pixmap
35 // to create a zero-copy texture (when possible):
36 // https://codereview.chromium.org/10543125
38 ui::CopyAreaToCanvas(host_
->GetAcceleratedWidget(),
39 host_
->GetBounds(), gfx::Point(), canvas
);
41 // TODO(spang): Figure out what to do here.
46 virtual void OnDelegatedFrameDamage(
47 const gfx::Rect
& damage_rect_in_dip
) OVERRIDE
{}
49 virtual void OnDeviceScaleFactorChanged(float device_scale_factor
) OVERRIDE
{}
51 virtual base::Closure
PrepareForLayerBoundsChange() OVERRIDE
{
52 return base::Closure();
56 aura::WindowTreeHost
* host_
; // not owned
58 DISALLOW_COPY_AND_ASSIGN(CopyHostContentLayerDelegate
);
61 BootSplashScreen::BootSplashScreen(aura::WindowTreeHost
* host
)
62 : layer_delegate_(new CopyHostContentLayerDelegate(host
)),
63 layer_(new ui::Layer(ui::LAYER_TEXTURED
)) {
64 layer_
->set_delegate(layer_delegate_
.get());
66 ui::Layer
* root_layer
= host
->window()->layer();
67 layer_
->SetBounds(gfx::Rect(host
->window()->bounds().size()));
68 root_layer
->Add(layer_
.get());
69 root_layer
->StackAtTop(layer_
.get());
72 BootSplashScreen::~BootSplashScreen() {
75 void BootSplashScreen::StartHideAnimation(base::TimeDelta duration
) {
76 ui::ScopedLayerAnimationSettings
settings(layer_
->GetAnimator());
77 settings
.SetTransitionDuration(duration
);
78 settings
.SetPreemptionStrategy(ui::LayerAnimator::REPLACE_QUEUED_ANIMATIONS
);
79 layer_
->SetOpacity(0.0f
);