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// Copyright (c) 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/desktop_background/user_wallpaper_delegate.h"
#include "ash/desktop_background/desktop_background_controller.h"
#include "ash/shell.h"
#include "ash/wm/window_animations.h"
#include "base/basictypes.h"
#include "ui/gfx/image/image_skia.h"
namespace {
const char kBackgroundRed = 70;
const char kBackgroundGreen = 70;
const char kBackgroundBlue = 78;
class UserWallpaperDelegate : public ash::UserWallpaperDelegate {
public:
UserWallpaperDelegate() {
}
virtual ~UserWallpaperDelegate() {
}
virtual int GetAnimationType() OVERRIDE {
return ShouldShowInitialAnimation() ?
ash::WINDOW_VISIBILITY_ANIMATION_TYPE_BRIGHTNESS_GRAYSCALE :
static_cast<int>(wm::WINDOW_VISIBILITY_ANIMATION_TYPE_FADE);
}
virtual bool ShouldShowInitialAnimation() OVERRIDE {
return true;
}
virtual int GetAnimationDurationOverride() OVERRIDE {
// Return 0 to select the default.
return 0;
}
virtual void SetAnimationDurationOverride(
int animation_duration_in_ms) OVERRIDE {
NOTIMPLEMENTED();
}
virtual void UpdateWallpaper(bool clear_cache) OVERRIDE {
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 16, 16);
bitmap.allocPixels();
bitmap.eraseARGB(255, kBackgroundRed, kBackgroundGreen, kBackgroundBlue);
#if !defined(NDEBUG)
// In debug builds we generate a simple pattern that allows visually
// notice if transparency is broken.
{
SkAutoLockPixels alp(bitmap);
*bitmap.getAddr32(0,0) = SkColorSetRGB(0, 0, 0);
}
#endif
gfx::ImageSkia wallpaper = gfx::ImageSkia::CreateFrom1xBitmap(bitmap);
ash::Shell::GetInstance()->desktop_background_controller()->
SetCustomWallpaper(wallpaper, ash::WALLPAPER_LAYOUT_TILE);
}
virtual void InitializeWallpaper() OVERRIDE {
UpdateWallpaper(false);
}
virtual void OpenSetWallpaperPage() OVERRIDE {
}
virtual bool CanOpenSetWallpaperPage() OVERRIDE {
return false;
}
virtual void OnWallpaperAnimationFinished() OVERRIDE {
}
virtual void OnWallpaperBootAnimationFinished() OVERRIDE {
}
private:
DISALLOW_COPY_AND_ASSIGN(UserWallpaperDelegate);
};
} // namespace
ash::UserWallpaperDelegate* CreateUserWallpaperDelegate() {
return new UserWallpaperDelegate();
}
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