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// Copyright (c) 2014 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 CHROME_BROWSER_UI_VIEWS_LINK_DISAMBIGUATION_LINK_DISAMBIGUATION_POPUP_H_
#define CHROME_BROWSER_UI_VIEWS_LINK_DISAMBIGUATION_LINK_DISAMBIGUATION_POPUP_H_
#include "base/macros.h"
#include "content/public/browser/web_contents_view_delegate.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/views/widget/widget.h"
namespace aura {
class Window;
}
namespace ui {
class MouseEvent;
}
// Creates a popup with a zoomed bitmap rendered by Blink of an area in web
// |content| that received an ambiguous Gesture event. This allows the user to
// select which of the links their first Gesture event overlapped. The popup
// generates a new Gesture event which is sent back to the provided |callback|.
class LinkDisambiguationPopup {
public:
LinkDisambiguationPopup();
~LinkDisambiguationPopup();
// Creates and shows the Popup. |top_level_widget| is the active widget.
// |zoomed_bitmap| is the scaled-up image of the ambiguous web content.
// |target_rect| is the original, unzoomed rectangle in DIPs in the
// coordinate system of |content|. We will convert received
// gestures in the popup to the coordinate system of |content| and as an
// offset within |target_rect|, and then call the |callback| with the
// transformed coordinates GestureEvent.
void Show(views::Widget* top_level_widget,
const SkBitmap& zoomed_bitmap,
const gfx::Rect& target_rect,
const gfx::NativeView content,
const base::Callback<void(ui::GestureEvent*)>& gesture_cb,
const base::Callback<void(ui::MouseEvent*)>& mouse_cb);
void Close();
private:
class ZoomBubbleView;
// It is possible that |view_| can be destroyed by its widget instead of
// closed explicitly by us. In that case we need to be notified that it has
// been destroyed so we can invalidate our own pointer to that view.
void InvalidateBubbleView();
// A non-owning pointer to the calling window that contains the unzoomed web
// content bitmap, that we will be sending the GestureEvents received back to.
const aura::Window* content_;
ZoomBubbleView* view_;
DISALLOW_COPY_AND_ASSIGN(LinkDisambiguationPopup);
};
#endif // CHROME_BROWSER_UI_VIEWS_LINK_DISAMBIGUATION_LINK_DISAMBIGUATION_POPUP_H_
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