Convert view manager to surfaces with uploading shim in client lib

mojo/services/view_manager/window_tree_host_impl.cc

-// 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 "mojo/public/c/gles2/gles2.h"
-#include "mojo/services/public/cpp/geometry/geometry_type_converters.h"
-#include "mojo/services/public/cpp/input_events/input_events_type_converters.h"
-#include "mojo/services/view_manager/connection_manager.h"
-#include "mojo/services/view_manager/context_factory_impl.h"
-#include "mojo/services/view_manager/window_tree_host_impl.h"
-#include "ui/aura/env.h"
-#include "ui/aura/layout_manager.h"
-#include "ui/aura/window.h"
-#include "ui/aura/window_event_dispatcher.h"
-#include "ui/compositor/compositor.h"
-#include "ui/events/event.h"
-#include "ui/events/event_constants.h"
-#include "ui/gfx/geometry/insets.h"
-#include "ui/gfx/geometry/rect.h"
-
-namespace mojo {
-namespace service {
-
-// TODO(sky): nuke this. It shouldn't be static.
-// static
-ContextFactoryImpl* WindowTreeHostImpl::context_factory_ = NULL;
-
-////////////////////////////////////////////////////////////////////////////////
-// RootLayoutManager, layout management for the root window's (one) child
-
-class RootLayoutManager : public aura::LayoutManager {
- public:
-  RootLayoutManager() : child_(NULL) {}
-
-  // Overridden from aura::LayoutManager
-  virtual void OnWindowResized() OVERRIDE;
-  virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE;
-  virtual void OnWillRemoveWindowFromLayout(aura::Window* child) OVERRIDE {}
-  virtual void OnWindowRemovedFromLayout(aura::Window* child) OVERRIDE {}
-  virtual void OnChildWindowVisibilityChanged(aura::Window* child,
-                                              bool visible) OVERRIDE {}
-  virtual void SetChildBounds(aura::Window* child,
-                              const gfx::Rect& requested_bounds) OVERRIDE;
- private:
-  aura::Window* child_;
-
-  DISALLOW_COPY_AND_ASSIGN(RootLayoutManager);
-};
-
-void RootLayoutManager::OnWindowResized() {
-  if (child_)
-    child_->SetBounds(gfx::Rect(child_->parent()->bounds().size()));
-}
-
-void RootLayoutManager::OnWindowAddedToLayout(aura::Window* child) {
-  DCHECK(!child_);
-  child_ = child;
-}
-
-void RootLayoutManager::SetChildBounds(aura::Window* child,
-                                       const gfx::Rect& requested_bounds) {
-  SetChildBoundsDirect(child, gfx::Rect(requested_bounds.size()));
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// WindowTreeHostImpl, public:
-
-WindowTreeHostImpl::WindowTreeHostImpl(
-    NativeViewportPtr viewport,
-    GpuPtr gpu_service,
-    const gfx::Rect& bounds,
-    const Callback<void()>& compositor_created_callback,
-    const Callback<void()>& native_viewport_closed_callback,
-    const Callback<void(EventPtr)>& event_received_callback)
-    : native_viewport_(viewport.Pass()),
-      gpu_service_(gpu_service.Pass()),
-      widget_(gfx::kNullAcceleratedWidget),
-      compositor_created_callback_(compositor_created_callback),
-      native_viewport_closed_callback_(native_viewport_closed_callback),
-      event_received_callback_(event_received_callback),
-      bounds_(bounds) {
-  native_viewport_.set_client(this);
-  native_viewport_->Create(Rect::From(bounds));
-  native_viewport_->Show();
-
-  window()->SetLayoutManager(new RootLayoutManager());
-}
-
-WindowTreeHostImpl::~WindowTreeHostImpl() {
-  DestroyCompositor();
-  DestroyDispatcher();
-  delete context_factory_;
-  context_factory_ = NULL;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// WindowTreeHostImpl, aura::WindowTreeHost implementation:
-
-ui::EventSource* WindowTreeHostImpl::GetEventSource() {
-  return this;
-}
-
-gfx::AcceleratedWidget WindowTreeHostImpl::GetAcceleratedWidget() {
-  return widget_;
-}
-
-void WindowTreeHostImpl::Show() {
-  window()->Show();
-}
-
-void WindowTreeHostImpl::Hide() {
-  native_viewport_->Hide();
-  window()->Hide();
-}
-
-gfx::Rect WindowTreeHostImpl::GetBounds() const {
-  return bounds_;
-}
-
-void WindowTreeHostImpl::SetBounds(const gfx::Rect& bounds) {
-  native_viewport_->SetBounds(Rect::From(bounds));
-}
-
-gfx::Point WindowTreeHostImpl::GetLocationOnNativeScreen() const {
-  return gfx::Point(0, 0);
-}
-
-void WindowTreeHostImpl::SetCapture() {
-  NOTIMPLEMENTED();
-}
-
-void WindowTreeHostImpl::ReleaseCapture() {
-  NOTIMPLEMENTED();
-}
-
-void WindowTreeHostImpl::PostNativeEvent(
-    const base::NativeEvent& native_event) {
-  NOTIMPLEMENTED();
-}
-
-void WindowTreeHostImpl::SetCursorNative(gfx::NativeCursor cursor) {
-  NOTIMPLEMENTED();
-}
-
-void WindowTreeHostImpl::MoveCursorToNative(const gfx::Point& location) {
-  NOTIMPLEMENTED();
-}
-
-void WindowTreeHostImpl::OnCursorVisibilityChangedNative(bool show) {
-  NOTIMPLEMENTED();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// WindowTreeHostImpl, ui::EventSource implementation:
-
-ui::EventProcessor* WindowTreeHostImpl::GetEventProcessor() {
-  return dispatcher();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// WindowTreeHostImpl, NativeViewportClient implementation:
-
-void WindowTreeHostImpl::OnCreated(uint64_t native_viewport_id) {
-  CommandBufferPtr cb;
-  // TODO(jamesr): Output to a surface instead.
-  gpu_service_->CreateOnscreenGLES2Context(
-      native_viewport_id, Size::From(bounds_.size()), Get(&cb));
-  widget_ = bit_cast<gfx::AcceleratedWidget>(
-      static_cast<uintptr_t>(native_viewport_id));
-
-  // The ContextFactory must exist before any Compositors are created.
-  if (context_factory_) {
-    delete context_factory_;
-    context_factory_ = NULL;
-  }
-  context_factory_ = new ContextFactoryImpl(cb.PassMessagePipe());
-  aura::Env::GetInstance()->set_context_factory(context_factory_);
-
-  CreateCompositor(gfx::kNullAcceleratedWidget);
-  compositor_created_callback_.Run();
-}
-
-void WindowTreeHostImpl::OnBoundsChanged(RectPtr bounds) {
-  bounds_ = bounds.To<gfx::Rect>();
-  if (context_factory_)
-    OnHostResized(bounds_.size());
-}
-
-void WindowTreeHostImpl::OnDestroyed() {
-  DestroyCompositor();
-  native_viewport_closed_callback_.Run();
-  // TODO(beng): quit the message loop once we are on our own thread.
-}
-
-void WindowTreeHostImpl::OnEvent(EventPtr event,
-                                 const mojo::Callback<void()>& callback) {
-  event_received_callback_.Run(event.Pass());
-  callback.Run();
-};
-
-}  // namespace service
-}  // namespace mojo