content/browser/web_contents/web_contents_view_mus.h

// 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.

#ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_MUS_H_
#define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_MUS_H_

#include <memory>
#include <vector>

#include "base/macros.h"
#include "build/build_config.h"
#include "components/mus/public/cpp/scoped_window_ptr.h"
#include "components/mus/public/cpp/window.h"
#include "content/browser/renderer_host/render_view_host_delegate_view.h"
#include "content/browser/web_contents/web_contents_view.h"
#include "content/common/content_export.h"
#include "content/common/drag_event_source_info.h"
#include "ui/aura/window_delegate.h"

namespace content {

class WebContents;
class WebContentsImpl;
class WebContentsViewDelegate;

class WebContentsViewMus : public WebContentsView,
                           public RenderViewHostDelegateView,
                           public aura::WindowDelegate {
 public:
  // The corresponding WebContentsImpl is passed in the constructor, and manages
  // our lifetime. This doesn't need to be the case, but is this way currently
  // because that's what was easiest when they were split.
  WebContentsViewMus(mus::Window* parent_window,
                     WebContentsImpl* web_contents,
                     WebContentsViewDelegate* delegate,
                     RenderViewHostDelegateView** delegate_view);
  ~WebContentsViewMus() override;

  WebContents* web_contents();

 private:
  void SizeChangedCommon(const gfx::Size& size);

  // WebContentsView implementation:
  gfx::NativeView GetNativeView() const override;
  gfx::NativeView GetContentNativeView() const override;
  gfx::NativeWindow GetTopLevelNativeWindow() const override;
  void GetContainerBounds(gfx::Rect* out) const override;
  void SizeContents(const gfx::Size& size) override;
  void Focus() override;
  void SetInitialFocus() override;
  void StoreFocus() override;
  void RestoreFocus() override;
  DropData* GetDropData() const override;
  gfx::Rect GetViewBounds() const override;
  void CreateView(const gfx::Size& initial_size,
                  gfx::NativeView context) override;
  RenderWidgetHostViewBase* CreateViewForWidget(
      RenderWidgetHost* render_widget_host,
      bool is_guest_view_hack) override;
  RenderWidgetHostViewBase* CreateViewForPopupWidget(
      RenderWidgetHost* render_widget_host) override;
  void SetPageTitle(const base::string16& title) override;
  void RenderViewCreated(RenderViewHost* host) override;
  void RenderViewSwappedIn(RenderViewHost* host) override;
  void SetOverscrollControllerEnabled(bool enabled) override;
#if defined(OS_MACOSX)
  void SetAllowOtherViews(bool allow) override;
  bool GetAllowOtherViews() const override;
  bool IsEventTracking() const override;
  void CloseTabAfterEventTracking() override;
#endif

  // Backend implementation of RenderViewHostDelegateView.
  void ShowContextMenu(RenderFrameHost* render_frame_host,
                       const ContextMenuParams& params) override;
  void StartDragging(const DropData& drop_data,
                     blink::WebDragOperationsMask allowed_ops,
                     const gfx::ImageSkia& image,
                     const gfx::Vector2d& image_offset,
                     const DragEventSourceInfo& event_info) override;
  void UpdateDragCursor(blink::WebDragOperation operation) override;
  void GotFocus() override;
  void TakeFocus(bool reverse) override;

  // Overridden from aura::WindowDelegate:
  gfx::Size GetMinimumSize() const override;
  gfx::Size GetMaximumSize() const override;
  void OnBoundsChanged(const gfx::Rect& old_bounds,
                       const gfx::Rect& new_bounds) override;
  gfx::NativeCursor GetCursor(const gfx::Point& point) override;
  int GetNonClientComponent(const gfx::Point& point) const override;
  bool ShouldDescendIntoChildForEventHandling(
      aura::Window* child,
      const gfx::Point& location) override;
  bool CanFocus() override;
  void OnCaptureLost() override;
  void OnPaint(const ui::PaintContext& context) override;
  void OnDeviceScaleFactorChanged(float device_scale_factor) override;
  void OnWindowDestroying(aura::Window* window) override;
  void OnWindowDestroyed(aura::Window* window) override;
  void OnWindowTargetVisibilityChanged(bool visible) override;
  bool HasHitTestMask() const override;
  void GetHitTestMask(gfx::Path* mask) const override;

  // The WebContentsImpl whose contents we display.
  WebContentsImpl* web_contents_;

  std::unique_ptr<WebContentsViewDelegate> delegate_;
  std::unique_ptr<aura::Window> aura_window_;
  std::unique_ptr<mus::ScopedWindowPtr> mus_window_;

  DISALLOW_COPY_AND_ASSIGN(WebContentsViewMus);
};

}  // namespace content

#endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_MUS_H_