Bye bye Mandoline

components/html_viewer/html_widget.cc

-// Copyright 2015 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 "components/html_viewer/html_widget.h"
-
-#include <stdint.h>
-#include <utility>
-
-#include "base/command_line.h"
-#include "components/html_viewer/blink_settings.h"
-#include "components/html_viewer/global_state.h"
-#include "components/html_viewer/ime_controller.h"
-#include "components/html_viewer/stats_collection_controller.h"
-#include "components/html_viewer/web_layer_tree_view_impl.h"
-#include "components/html_viewer/web_storage_namespace_impl.h"
-#include "components/mus/public/cpp/window.h"
-#include "mojo/services/tracing/public/interfaces/tracing.mojom.h"
-#include "mojo/shell/public/cpp/shell.h"
-#include "third_party/WebKit/public/web/WebFrameWidget.h"
-#include "third_party/WebKit/public/web/WebSettings.h"
-#include "third_party/WebKit/public/web/WebView.h"
-#include "ui/gfx/geometry/dip_util.h"
-
-namespace html_viewer {
-namespace {
-
-scoped_ptr<WebLayerTreeViewImpl> CreateWebLayerTreeView(
-    GlobalState* global_state) {
-  return make_scoped_ptr(new WebLayerTreeViewImpl(
-      global_state->compositor_thread(),
-      global_state->gpu_memory_buffer_manager(),
-      global_state->raster_thread_helper()->task_graph_runner()));
-}
-
-void InitializeWebLayerTreeView(WebLayerTreeViewImpl* web_layer_tree_view,
-                                mojo::Shell* shell,
-                                mus::Window* window,
-                                blink::WebWidget* widget) {
-  DCHECK(window);
-  mus::mojom::GpuPtr gpu_service;
-  shell->ConnectToService("mojo:mus", &gpu_service);
-  web_layer_tree_view->Initialize(std::move(gpu_service), window, widget);
-}
-
-void UpdateWebViewSizeFromViewSize(mus::Window* window,
-                                   blink::WebWidget* web_widget,
-                                   WebLayerTreeViewImpl* web_layer_tree_view) {
-  const gfx::Size size_in_pixels(window->bounds().size());
-  const gfx::Size size_in_dips = gfx::ConvertSizeToDIP(
-      window->viewport_metrics().device_pixel_ratio, size_in_pixels);
-  web_widget->resize(
-      blink::WebSize(size_in_dips.width(), size_in_dips.height()));
-  web_layer_tree_view->setViewportSize(size_in_pixels);
-}
-
-}  // namespace
-
-// HTMLWidgetRootRemote -------------------------------------------------------
-
-HTMLWidgetRootRemote::HTMLWidgetRootRemote(GlobalState* global_state)
-    : web_view_(blink::WebView::create(this)) {
-  global_state->blink_settings()->ApplySettingsToWebView(web_view_);
-}
-
-HTMLWidgetRootRemote::~HTMLWidgetRootRemote() {}
-
-blink::WebStorageNamespace*
-HTMLWidgetRootRemote::createSessionStorageNamespace() {
-  return new WebStorageNamespaceImpl();
-}
-
-bool HTMLWidgetRootRemote::allowsBrokenNullLayerTreeView() const {
-  return true;
-}
-
-blink::WebWidget* HTMLWidgetRootRemote::GetWidget() {
-  return web_view_;
-}
-
-void HTMLWidgetRootRemote::OnWindowBoundsChanged(mus::Window* window) {}
-
-// HTMLWidgetRootLocal --------------------------------------------------------
-
-HTMLWidgetRootLocal::CreateParams::CreateParams(mojo::Shell* shell,
-                                                GlobalState* global_state,
-                                                mus::Window* window)
-    : shell(shell), global_state(global_state), window(window) {}
-
-HTMLWidgetRootLocal::CreateParams::~CreateParams() {}
-
-HTMLWidgetRootLocal::HTMLWidgetRootLocal(CreateParams* create_params)
-    : shell_(create_params->shell),
-      global_state_(create_params->global_state),
-      window_(create_params->window),
-      web_view_(nullptr) {
-  web_view_ = blink::WebView::create(this);
-  ime_controller_.reset(new ImeController(window_, web_view_));
-  // Creating the widget calls initializeLayerTreeView() to create the
-  // |web_layer_tree_view_impl_|. As we haven't yet assigned the |web_view_|
-  // we have to set it here.
-  if (web_layer_tree_view_impl_) {
-    InitializeWebLayerTreeView(web_layer_tree_view_impl_.get(), shell_, window_,
-                               web_view_);
-    UpdateWebViewSizeFromViewSize(window_, web_view_,
-                                  web_layer_tree_view_impl_.get());
-  }
-  global_state_->blink_settings()->ApplySettingsToWebView(web_view_);
-}
-
-HTMLWidgetRootLocal::~HTMLWidgetRootLocal() {}
-
-blink::WebStorageNamespace*
-HTMLWidgetRootLocal::createSessionStorageNamespace() {
-  return new WebStorageNamespaceImpl();
-}
-
-void HTMLWidgetRootLocal::initializeLayerTreeView() {
-  web_layer_tree_view_impl_ = CreateWebLayerTreeView(global_state_);
-}
-
-blink::WebLayerTreeView* HTMLWidgetRootLocal::layerTreeView() {
-  return web_layer_tree_view_impl_.get();
-}
-
-void HTMLWidgetRootLocal::didMeaningfulLayout(
-    blink::WebMeaningfulLayout layout_type) {
-  static bool called = false;
-  if (!called && layout_type == blink::WebMeaningfulLayout::VisuallyNonEmpty) {
-    const int64_t ticks = base::TimeTicks::Now().ToInternalValue();
-    tracing::StartupPerformanceDataCollectorPtr collector =
-        StatsCollectionController::ConnectToDataCollector(shell_);
-    if (collector)
-      collector->SetFirstVisuallyNonEmptyLayoutTicks(ticks);
-    called = true;
-  }
-}
-
-void HTMLWidgetRootLocal::resetInputMethod() {
-  ime_controller_->ResetInputMethod();
-}
-
-void HTMLWidgetRootLocal::didHandleGestureEvent(
-    const blink::WebGestureEvent& event,
-    bool event_cancelled) {
-  ime_controller_->DidHandleGestureEvent(event, event_cancelled);
-}
-
-void HTMLWidgetRootLocal::didUpdateTextOfFocusedElementByNonUserInput() {
-  ime_controller_->DidUpdateTextOfFocusedElementByNonUserInput();
-}
-
-void HTMLWidgetRootLocal::showImeIfNeeded() {
-  ime_controller_->ShowImeIfNeeded();
-}
-
-blink::WebWidget* HTMLWidgetRootLocal::GetWidget() {
-  return web_view_;
-}
-
-void HTMLWidgetRootLocal::OnWindowBoundsChanged(mus::Window* window) {
-  UpdateWebViewSizeFromViewSize(window, web_view_,
-                                web_layer_tree_view_impl_.get());
-}
-
-// HTMLWidgetLocalRoot --------------------------------------------------------
-
-HTMLWidgetLocalRoot::HTMLWidgetLocalRoot(mojo::Shell* shell,
-                                         GlobalState* global_state,
-                                         mus::Window* window,
-                                         blink::WebLocalFrame* web_local_frame)
-    : shell_(shell), global_state_(global_state), web_frame_widget_(nullptr) {
-  web_frame_widget_ = blink::WebFrameWidget::create(this, web_local_frame);
-  ime_controller_.reset(new ImeController(window, web_frame_widget_));
-  // Creating the widget calls initializeLayerTreeView() to create the
-  // |web_layer_tree_view_impl_|. As we haven't yet assigned the
-  // |web_frame_widget_|
-  // we have to set it here.
-  if (web_layer_tree_view_impl_) {
-    InitializeWebLayerTreeView(web_layer_tree_view_impl_.get(), shell_, window,
-                               web_frame_widget_);
-    UpdateWebViewSizeFromViewSize(window, web_frame_widget_,
-                                  web_layer_tree_view_impl_.get());
-  }
-}
-
-HTMLWidgetLocalRoot::~HTMLWidgetLocalRoot() {}
-
-blink::WebWidget* HTMLWidgetLocalRoot::GetWidget() {
-  return web_frame_widget_;
-}
-
-void HTMLWidgetLocalRoot::OnWindowBoundsChanged(mus::Window* window) {
-  UpdateWebViewSizeFromViewSize(window, web_frame_widget_,
-                                web_layer_tree_view_impl_.get());
-}
-
-void HTMLWidgetLocalRoot::initializeLayerTreeView() {
-  web_layer_tree_view_impl_ = CreateWebLayerTreeView(global_state_);
-}
-
-blink::WebLayerTreeView* HTMLWidgetLocalRoot::layerTreeView() {
-  return web_layer_tree_view_impl_.get();
-}
-
-void HTMLWidgetLocalRoot::resetInputMethod() {
-  ime_controller_->ResetInputMethod();
-}
-
-void HTMLWidgetLocalRoot::didHandleGestureEvent(
-    const blink::WebGestureEvent& event,
-    bool event_cancelled) {
-  ime_controller_->DidHandleGestureEvent(event, event_cancelled);
-}
-
-void HTMLWidgetLocalRoot::didUpdateTextOfFocusedElementByNonUserInput() {
-  ime_controller_->DidUpdateTextOfFocusedElementByNonUserInput();
-}
-
-void HTMLWidgetLocalRoot::showImeIfNeeded() {
-  ime_controller_->ShowImeIfNeeded();
-}
-
-}  // namespace html_viewer