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// Copyright 2018 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.
#import <objc/objc.h>
#include "ui/base/ui_base_export.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/native_widget_types.h"
namespace remote_cocoa {
namespace mojom {
class Application;
} // namespace mojom
} // namespace remote_cocoa
namespace ui {
class Layer;
// Interface that it used to stitch a content::WebContentsView into a
// views::View.
// TODO(ccameron): Move this to components/remote_cocoa.
class ViewsHostableView {
// Host interface through which the WebContentsView may indicate that its C++
// object is destroying.
class Host {
// Query the ui::Layer of the host.
virtual ui::Layer* GetUiLayer() const = 0;
// Return the mojo interface to the application in a remote process in which
// the host NSView exists. Used to migrate the content::WebContentsView and
// content::RenderWidgetHostView to that process.
virtual remote_cocoa::mojom::Application* GetRemoteCocoaApplication()
const = 0;
// The id for the views::View's NSView. Used to add the
// content::WebContentsView's NSView as a child view.
virtual uint64_t GetNSViewId() const = 0;
// Called when the hostable view will be destroyed.
virtual void OnHostableViewDestroying() = 0;
// Called to add the content::WebContentsView's NSView as a subview of the
// views::View's NSView. This is responsible for:
// - Adding the WebContentsView's ui::Layer to the parent's ui::Layer tree.
// - Stitching together the accessibility tree between the views::View and
// the WebContentsView.
// - Adding the WebContents browser-side and app-shim-side NSViews as children
// to the views::View's NSViews.
virtual void ViewsHostableAttach(Host* host) = 0;
// Called when the WebContentsView's NSView has been removed from the
// views::View's NSView. This is responsible for un-doing all of the actions
// taken when attaching.
virtual void ViewsHostableDetach() = 0;
// Resize the WebContentsView's NSView.
virtual void ViewsHostableSetBounds(const gfx::Rect& bounds_in_window) = 0;
// Show or hide the WebContentsView's NSView.
virtual void ViewsHostableSetVisible(bool visible) = 0;
// Make the WebContentsView's NSView be a first responder.
virtual void ViewsHostableMakeFirstResponder() = 0;
// Set the WebContentsView's parent accessibility element.
virtual void ViewsHostableSetParentAccessible(
gfx::NativeViewAccessible parent_accessibility_element) = 0;
// Retrieve the WebContentsView's accessibility element.
virtual gfx::NativeViewAccessible ViewsHostableGetAccessibilityElement() = 0;
} // namespace ui
// The protocol through which an NSView indicates support for the
// ViewsHostableView interface.
@protocol ViewsHostable
- (ui::ViewsHostableView*)viewsHostableView;