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Side by Side Diff: chrome/browser/ui/views/link_disambiguation/link_disambiguation_popup.h

Issue 1926173002: Erase LinkDisambiguation code on desktop. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: another merge conflict Created 4 years, 7 months ago
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1 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef CHROME_BROWSER_UI_VIEWS_LINK_DISAMBIGUATION_LINK_DISAMBIGUATION_POPUP_H_
6 #define CHROME_BROWSER_UI_VIEWS_LINK_DISAMBIGUATION_LINK_DISAMBIGUATION_POPUP_H_
7
8 #include "base/macros.h"
9 #include "content/public/browser/web_contents_view_delegate.h"
10 #include "ui/gfx/geometry/rect.h"
11 #include "ui/views/widget/widget.h"
12
13 namespace aura {
14 class Window;
15 }
16
17 namespace ui {
18 class MouseEvent;
19 }
20
21 // Creates a popup with a zoomed bitmap rendered by Blink of an area in web
22 // |content| that received an ambiguous Gesture event. This allows the user to
23 // select which of the links their first Gesture event overlapped. The popup
24 // generates a new Gesture event which is sent back to the provided |callback|.
25 class LinkDisambiguationPopup {
26 public:
27 LinkDisambiguationPopup();
28 ~LinkDisambiguationPopup();
29
30 // Creates and shows the Popup. |top_level_widget| is the active widget.
31 // |zoomed_bitmap| is the scaled-up image of the ambiguous web content.
32 // |target_rect| is the original, unzoomed rectangle in DIPs in the
33 // coordinate system of |content|. We will convert received
34 // gestures in the popup to the coordinate system of |content| and as an
35 // offset within |target_rect|, and then call the |callback| with the
36 // transformed coordinates GestureEvent.
37 void Show(views::Widget* top_level_widget,
38 const SkBitmap& zoomed_bitmap,
39 const gfx::Rect& target_rect,
40 const gfx::NativeView content,
41 const base::Callback<void(ui::GestureEvent*)>& gesture_cb,
42 const base::Callback<void(ui::MouseEvent*)>& mouse_cb);
43 void Close();
44
45 private:
46 class ZoomBubbleView;
47
48 // It is possible that |view_| can be destroyed by its widget instead of
49 // closed explicitly by us. In that case we need to be notified that it has
50 // been destroyed so we can invalidate our own pointer to that view.
51 void InvalidateBubbleView();
52
53 // A non-owning pointer to the calling window that contains the unzoomed web
54 // content bitmap, that we will be sending the GestureEvents received back to.
55 const aura::Window* content_;
56 ZoomBubbleView* view_;
57
58 DISALLOW_COPY_AND_ASSIGN(LinkDisambiguationPopup);
59 };
60
61 #endif // CHROME_BROWSER_UI_VIEWS_LINK_DISAMBIGUATION_LINK_DISAMBIGUATION_POPUP _H_
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