root/content/test/web_layer_tree_view_impl_for_testing.cc

DEFINITIONS

1. Initialize
2. setSurfaceReady
3. setRootLayer
4. clearRootLayer
5. setViewportSize
6. layoutViewportSize
7. deviceViewportSize
8. setDeviceScaleFactor
9. deviceScaleFactor
10. setBackgroundColor
11. setHasTransparentBackground
12. setVisible
13. setPageScaleFactorAndLimits
14. startPageScaleAnimation
15. setNeedsAnimate
16. commitRequested
17. didStopFlinging
18. compositeAndReadback
19. finishAllRendering
20. setDeferCommits
21. Layout
22. ApplyScrollAndScale
23. CreateOutputSurface
24. OffscreenContextProvider
25. registerViewportLayers
26. clearViewportLayers

// 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 "content/test/web_layer_tree_view_impl_for_testing.h"

#include "base/command_line.h"
#include "base/strings/string_number_conversions.h"
#include "base/synchronization/lock.h"
#include "cc/base/switches.h"
#include "cc/input/input_handler.h"
#include "cc/layers/layer.h"
#include "cc/output/output_surface.h"
#include "cc/test/test_context_provider.h"
#include "cc/trees/layer_tree_host.h"
#include "content/test/test_context_provider_factory.h"
#include "content/test/test_webkit_platform_support.h"
#include "third_party/WebKit/public/platform/Platform.h"
#include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
#include "third_party/WebKit/public/platform/WebLayer.h"
#include "third_party/WebKit/public/platform/WebLayerTreeView.h"
#include "third_party/WebKit/public/platform/WebSize.h"
#include "ui/gfx/frame_time.h"
#include "webkit/renderer/compositor_bindings/web_layer_impl.h"

using blink::WebColor;
using blink::WebGraphicsContext3D;
using blink::WebRect;
using blink::WebSize;
using webkit::WebLayerImpl;

namespace content {

WebLayerTreeViewImplForTesting::WebLayerTreeViewImplForTesting() {}

WebLayerTreeViewImplForTesting::~WebLayerTreeViewImplForTesting() {}

void WebLayerTreeViewImplForTesting::Initialize() {
  cc::LayerTreeSettings settings;

  // For web contents, layer transforms should scale up the contents of layers
  // to keep content always crisp when possible.
  settings.layer_transforms_should_scale_layer_contents = true;

  // Accelerated animations are enabled for unit tests.
  settings.accelerated_animation_enabled = true;
  layer_tree_host_ =
      cc::LayerTreeHost::CreateSingleThreaded(this, this, NULL, settings);
  DCHECK(layer_tree_host_);
}

void WebLayerTreeViewImplForTesting::setSurfaceReady() {
  layer_tree_host_->SetLayerTreeHostClientReady();
}

void WebLayerTreeViewImplForTesting::setRootLayer(
    const blink::WebLayer& root) {
  layer_tree_host_->SetRootLayer(
      static_cast<const WebLayerImpl*>(&root)->layer());
}

void WebLayerTreeViewImplForTesting::clearRootLayer() {
  layer_tree_host_->SetRootLayer(scoped_refptr<cc::Layer>());
}

void WebLayerTreeViewImplForTesting::setViewportSize(
    const WebSize& unused_deprecated,
    const WebSize& device_viewport_size) {
  layer_tree_host_->SetViewportSize(device_viewport_size);
}

WebSize WebLayerTreeViewImplForTesting::layoutViewportSize() const {
  return layer_tree_host_->device_viewport_size();
}

WebSize WebLayerTreeViewImplForTesting::deviceViewportSize() const {
  return layer_tree_host_->device_viewport_size();
}

void WebLayerTreeViewImplForTesting::setDeviceScaleFactor(
    float device_scale_factor) {
  layer_tree_host_->SetDeviceScaleFactor(device_scale_factor);
}

float WebLayerTreeViewImplForTesting::deviceScaleFactor() const {
  return layer_tree_host_->device_scale_factor();
}

void WebLayerTreeViewImplForTesting::setBackgroundColor(WebColor color) {
  layer_tree_host_->set_background_color(color);
}

void WebLayerTreeViewImplForTesting::setHasTransparentBackground(
    bool transparent) {
  layer_tree_host_->set_has_transparent_background(transparent);
}

void WebLayerTreeViewImplForTesting::setVisible(bool visible) {
  layer_tree_host_->SetVisible(visible);
}

void WebLayerTreeViewImplForTesting::setPageScaleFactorAndLimits(
    float page_scale_factor,
    float minimum,
    float maximum) {
  layer_tree_host_->SetPageScaleFactorAndLimits(
      page_scale_factor, minimum, maximum);
}

void WebLayerTreeViewImplForTesting::startPageScaleAnimation(
    const blink::WebPoint& scroll,
    bool use_anchor,
    float new_page_scale,
    double duration_sec) {}

void WebLayerTreeViewImplForTesting::setNeedsAnimate() {
  layer_tree_host_->SetNeedsAnimate();
}

bool WebLayerTreeViewImplForTesting::commitRequested() const {
  return layer_tree_host_->CommitRequested();
}

void WebLayerTreeViewImplForTesting::didStopFlinging() {}

bool WebLayerTreeViewImplForTesting::compositeAndReadback(
    void* pixels, const WebRect& rect_in_device_viewport) {
  return layer_tree_host_->CompositeAndReadback(pixels,
                                                rect_in_device_viewport);
}

void WebLayerTreeViewImplForTesting::finishAllRendering() {
  layer_tree_host_->FinishAllRendering();
}

void WebLayerTreeViewImplForTesting::setDeferCommits(bool defer_commits) {
  layer_tree_host_->SetDeferCommits(defer_commits);
}

void WebLayerTreeViewImplForTesting::Layout() {
}

void WebLayerTreeViewImplForTesting::ApplyScrollAndScale(
    const gfx::Vector2d& scroll_delta,
    float page_scale) {}

scoped_ptr<cc::OutputSurface>
WebLayerTreeViewImplForTesting::CreateOutputSurface(bool fallback) {
  return make_scoped_ptr(
      new cc::OutputSurface(cc::TestContextProvider::Create()));
}

scoped_refptr<cc::ContextProvider>
WebLayerTreeViewImplForTesting::OffscreenContextProvider() {
  // Unit tests only run in single threaded mode.
  return content::TestContextProviderFactory::GetInstance()->
      OffscreenContextProviderForMainThread();
}

void WebLayerTreeViewImplForTesting::registerViewportLayers(
    const blink::WebLayer* pageScaleLayer,
    const blink::WebLayer* innerViewportScrollLayer,
    const blink::WebLayer* outerViewportScrollLayer) {
  layer_tree_host_->RegisterViewportLayers(
      static_cast<const WebLayerImpl*>(pageScaleLayer)->layer(),
      static_cast<const WebLayerImpl*>(innerViewportScrollLayer)->layer(),
      // The outer viewport layer will only exist when using pinch virtual
      // viewports.
      outerViewportScrollLayer
          ? static_cast<const WebLayerImpl*>(outerViewportScrollLayer)->layer()
          : NULL);
}

void WebLayerTreeViewImplForTesting::clearViewportLayers() {
  layer_tree_host_->RegisterViewportLayers(scoped_refptr<cc::Layer>(),
                                           scoped_refptr<cc::Layer>(),
                                           scoped_refptr<cc::Layer>());
}

}  // namespace content