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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.
#ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_MAC_H_
#define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_MAC_H_
#import <Cocoa/Cocoa.h>
#include <list>
#include <memory>
#include <string>
#include <vector>
#include "base/mac/scoped_nsobject.h"
#include "base/macros.h"
#include "content/browser/frame_host/popup_menu_helper_mac.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 "content/public/browser/visibility.h"
#include "content/public/common/web_contents_ns_view_bridge.mojom.h"
#include "mojo/public/cpp/bindings/associated_binding.h"
#import "ui/base/cocoa/base_view.h"
#import "ui/base/cocoa/views_hostable.h"
#include "ui/gfx/geometry/size.h"
@class WebDragDest;
@class WebDragSource;
namespace content {
class RenderWidgetHostViewMac;
class WebContentsImpl;
class WebContentsViewDelegate;
class WebContentsViewMac;
}
namespace gfx {
class Vector2d;
}
CONTENT_EXPORT
@interface WebContentsViewCocoa : BaseView<ViewsHostable> {
@private
// Instances of this class are owned by both webContentsView_ and AppKit. It
// is possible for an instance to outlive its webContentsView_. The
// webContentsView_ must call -clearWebContentsView in its destructor.
content::WebContentsViewMac* webContentsView_;
base::scoped_nsobject<WebDragSource> dragSource_;
base::scoped_nsobject<WebDragDest> dragDest_;
base::scoped_nsobject<id> accessibilityParent_;
BOOL mouseDownCanMoveWindow_;
}
- (void)setMouseDownCanMoveWindow:(BOOL)canMove;
// Sets |accessibilityParent| as the object returned when the
// receiver is queried for its accessibility parent.
// TODO(lgrey/ellyjones): Remove this in favor of setAccessibilityParent:
// when we switch to the new accessibility API.
- (void)setAccessibilityParentElement:(id)accessibilityParent;
// Returns the available drag operations. This is a required method for
// NSDraggingSource. It is supposedly deprecated, but the non-deprecated API
// -[NSWindow dragImage:...] still relies on it.
- (NSDragOperation)draggingSourceOperationMaskForLocal:(BOOL)isLocal;
@end
namespace content {
// Mac-specific implementation of the WebContentsView. It owns an NSView that
// contains all of the contents of the tab and associated child views.
class WebContentsViewMac : public WebContentsView,
public RenderViewHostDelegateView,
public PopupMenuHelper::Delegate,
public mojom::WebContentsNSViewClient,
public ui::ViewsHostableView {
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.
WebContentsViewMac(WebContentsImpl* web_contents,
WebContentsViewDelegate* delegate);
~WebContentsViewMac() override;
// 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;
void FocusThroughTabTraversal(bool reverse) 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* CreateViewForChildWidget(
RenderWidgetHost* render_widget_host) override;
void SetPageTitle(const base::string16& title) override;
void RenderViewCreated(RenderViewHost* host) override;
void RenderViewReady() override;
void RenderViewHostChanged(RenderViewHost* old_host,
RenderViewHost* new_host) override;
void SetOverscrollControllerEnabled(bool enabled) override;
bool IsEventTracking() const override;
void CloseTabAfterEventTracking() override;
// RenderViewHostDelegateView:
void StartDragging(const DropData& drop_data,
blink::WebDragOperationsMask allowed_operations,
const gfx::ImageSkia& image,
const gfx::Vector2d& image_offset,
const DragEventSourceInfo& event_info,
RenderWidgetHostImpl* source_rwh) override;
void UpdateDragCursor(blink::WebDragOperation operation) override;
void GotFocus(RenderWidgetHostImpl* render_widget_host) override;
void TakeFocus(bool reverse) override;
void ShowContextMenu(RenderFrameHost* render_frame_host,
const ContextMenuParams& params) override;
void ShowPopupMenu(RenderFrameHost* render_frame_host,
const gfx::Rect& bounds,
int item_height,
double item_font_size,
int selected_item,
const std::vector<MenuItem>& items,
bool right_aligned,
bool allow_multiple_selection) override;
void HidePopupMenu() override;
// PopupMenuHelper::Delegate:
void OnMenuClosed() override;
// ViewsHostableView:
void OnViewsHostableAttached(ViewsHostableView::Host* host) override;
void OnViewsHostableDetached() override;
void OnViewsHostableShow(const gfx::Rect& bounds_in_window) override;
void OnViewsHostableHide() override;
void OnViewsHostableMakeFirstResponder() override;
// A helper method for closing the tab in the
// CloseTabAfterEventTracking() implementation.
void CloseTab();
// Called from Cocoa when window visibility changes.
void OnWindowVisibilityChanged(content::Visibility visibility);
WebContentsImpl* web_contents() { return web_contents_; }
WebContentsViewDelegate* delegate() { return delegate_.get(); }
using RenderWidgetHostViewCreateFunction =
RenderWidgetHostViewMac* (*)(RenderWidgetHost*, bool);
// Used to override the creation of RenderWidgetHostViews in tests.
CONTENT_EXPORT static void InstallCreateHookForTests(
RenderWidgetHostViewCreateFunction create_render_widget_host_view);
private:
// Return the list of child RenderWidgetHostViewMacs. This will remove any
// destroyed instances before returning.
std::list<RenderWidgetHostViewMac*> GetChildViews();
// Returns the fullscreen view, if one exists; otherwise, returns the content
// native view. This ensures that the view currently attached to a NSWindow is
// being used to query or set first responder state.
gfx::NativeView GetNativeViewForFocus() const;
// The WebContentsImpl whose contents we display.
WebContentsImpl* web_contents_;
// The Cocoa NSView that lives in the view hierarchy.
base::scoped_nsobject<WebContentsViewCocoa> cocoa_view_;
// Our optional delegate.
std::unique_ptr<WebContentsViewDelegate> delegate_;
// This contains all RenderWidgetHostViewMacs that have been added as child
// NSViews to this NSView. Note that this list may contain RWHVMacs besides
// just |web_contents_->GetRenderWidgetHostView()|. The only time that the
// RWHVMac's NSView is removed from the WCVMac's NSView is when it is
// destroyed.
std::list<base::WeakPtr<RenderWidgetHostViewBase>> child_views_;
// Interface to the views::View host of this view.
ViewsHostableView::Host* views_host_ = nullptr;
std::unique_ptr<PopupMenuHelper> popup_menu_helper_;
// The id that may be used to look up this NSView.
const uint64_t ns_view_id_;
// Mojo bindings for an out of process instance of this NSView.
mojom::WebContentsNSViewBridgeAssociatedPtr ns_view_bridge_remote_;
mojo::AssociatedBinding<mojom::WebContentsNSViewClient>
ns_view_client_binding_;
DISALLOW_COPY_AND_ASSIGN(WebContentsViewMac);
};
} // namespace content
#endif // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_MAC_H_