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// Copyright (c) 2012 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 "ui/snapshot/snapshot.h"
#include "base/bind.h"
#include "cc/output/copy_output_request.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/base/android/view_android.h"
#include "ui/base/android/window_android.h"
#include "ui/base/android/window_android_compositor.h"
#include "ui/gfx/display.h"
#include "ui/gfx/geometry/point_conversions.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/screen.h"
#include "ui/snapshot/snapshot_async.h"
namespace ui {
bool GrabViewSnapshot(gfx::NativeView view,
std::vector<unsigned char>* png_representation,
const gfx::Rect& snapshot_bounds) {
return GrabWindowSnapshot(
view->GetWindowAndroid(), png_representation, snapshot_bounds);
}
bool GrabWindowSnapshot(gfx::NativeWindow window,
std::vector<unsigned char>* png_representation,
const gfx::Rect& snapshot_bounds) {
// Not supported in Android. Callers should fall back to the async version.
return false;
}
static void MakeAsyncCopyRequest(
gfx::NativeWindow window,
const gfx::Rect& source_rect,
const cc::CopyOutputRequest::CopyOutputRequestCallback& callback) {
scoped_ptr<cc::CopyOutputRequest> request =
cc::CopyOutputRequest::CreateBitmapRequest(callback);
const gfx::Display& display =
gfx::Screen::GetNativeScreen()->GetPrimaryDisplay();
float device_scale_factor = display.device_scale_factor();
gfx::Rect source_rect_in_pixel =
gfx::ToEnclosingRect(gfx::ScaleRect(source_rect, device_scale_factor));
// Account for the toolbar offset.
gfx::Vector2dF offset = window->content_offset();
gfx::Rect adjusted_source_rect(gfx::ToRoundedPoint(
gfx::PointF(source_rect_in_pixel.x() + offset.x(),
source_rect_in_pixel.y() + offset.y())),
source_rect_in_pixel.size());
request->set_area(adjusted_source_rect);
window->GetCompositor()->RequestCopyOfOutputOnRootLayer(request.Pass());
}
void GrabWindowSnapshotAndScaleAsync(
gfx::NativeWindow window,
const gfx::Rect& source_rect,
const gfx::Size& target_size,
scoped_refptr<base::TaskRunner> background_task_runner,
const GrabWindowSnapshotAsyncCallback& callback) {
MakeAsyncCopyRequest(window,
source_rect,
base::Bind(&SnapshotAsync::ScaleCopyOutputResult,
callback,
target_size,
background_task_runner));
}
void GrabWindowSnapshotAsync(
gfx::NativeWindow window,
const gfx::Rect& source_rect,
scoped_refptr<base::TaskRunner> background_task_runner,
const GrabWindowSnapshotAsyncPNGCallback& callback) {
MakeAsyncCopyRequest(window,
source_rect,
base::Bind(&SnapshotAsync::EncodeCopyOutputResult,
callback,
background_task_runner));
}
void GrabViewSnapshotAsync(
gfx::NativeView view,
const gfx::Rect& source_rect,
scoped_refptr<base::TaskRunner> background_task_runner,
const GrabWindowSnapshotAsyncPNGCallback& callback) {
GrabWindowSnapshotAsync(
view->GetWindowAndroid(), source_rect, background_task_runner, callback);
}
} // namespace ui
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