extension_view_views.h revision 2a99a7e74a7f215066514fe81d2bfa6639d9eddd 
1// Copyright (c) 2012 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_EXTENSIONS_EXTENSION_VIEW_VIEWS_H_
6#define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_VIEW_VIEWS_H_
7
8#include "base/basictypes.h"
9#include "base/compiler_specific.h"
10#include "chrome/browser/ui/views/unhandled_keyboard_event_handler.h"
11#include "content/public/browser/native_web_keyboard_event.h"
12#include "third_party/skia/include/core/SkBitmap.h"
13#include "ui/views/controls/native/native_view_host.h"
14
15class Browser;
16
17namespace content {
18class RenderViewHost;
19}
20
21namespace extensions {
22class Extension;
23class ExtensionHost;
24}
25
26// This handles the display portion of an ExtensionHost.
27class ExtensionViewViews : public views::NativeViewHost {
28 public:
29  ExtensionViewViews(extensions::ExtensionHost* host, Browser* browser);
30  virtual ~ExtensionViewViews();
31
32  // A class that represents the container that this view is in.
33  // (bottom shelf, side bar, etc.)
34  class Container {
35   public:
36    virtual ~Container() {}
37    virtual void OnExtensionSizeChanged(ExtensionViewViews* view) {}
38    virtual void OnViewWasResized() {}
39  };
40
41  extensions::ExtensionHost* host() const { return host_; }
42  Browser* browser() const { return browser_; }
43  const extensions::Extension* extension() const;
44  content::RenderViewHost* render_view_host() const;
45  void DidStopLoading();
46  void SetIsClipped(bool is_clipped);
47
48  // Notification from ExtensionHost.
49  void ResizeDueToAutoResize(const gfx::Size& new_size);
50
51  // Method for the ExtensionHost to notify us when the RenderViewHost has a
52  // connection.
53  void RenderViewCreated();
54
55  // Sets the container for this view.
56  void SetContainer(Container* container) { container_ = container; }
57
58  // Handles unhandled keyboard messages coming back from the renderer process.
59  void HandleKeyboardEvent(const content::NativeWebKeyboardEvent& event);
60
61  // Overridden from views::NativeViewHost:
62  virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE;
63  virtual void SetVisible(bool is_visible) OVERRIDE;
64  virtual void ViewHierarchyChanged(bool is_add,
65                                    views::View* parent,
66                                    views::View* child) OVERRIDE;
67
68 protected:
69  // Overridden from views::View.
70  virtual void PreferredSizeChanged() OVERRIDE;
71  virtual bool SkipDefaultKeyEventProcessing(const ui::KeyEvent& e) OVERRIDE;
72  virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE;
73
74 private:
75  friend class extensions::ExtensionHost;
76
77  // Initializes the RenderWidgetHostView for this object.
78  void CreateWidgetHostView();
79
80  // We wait to show the ExtensionViewViews until several things have loaded.
81  void ShowIfCompletelyLoaded();
82
83  // Restore object to initial state. Called on shutdown or after a renderer
84  // crash.
85  void CleanUp();
86
87  // The running extension instance that we're displaying.
88  // Note that host_ owns view
89  extensions::ExtensionHost* host_;
90
91  // The browser window that this view is in.
92  Browser* browser_;
93
94  // True if we've been initialized.
95  bool initialized_;
96
97  // What we should set the preferred width to once the ExtensionViewViews has
98  // loaded.
99  gfx::Size pending_preferred_size_;
100
101  // The container this view is in (not necessarily its direct superview).
102  // Note: the view does not own its container.
103  Container* container_;
104
105  // Whether this extension view is clipped.
106  bool is_clipped_;
107
108  // A handler to handle unhandled keyboard messages coming back from the
109  // renderer process.
110  UnhandledKeyboardEventHandler unhandled_keyboard_event_handler_;
111
112  DISALLOW_COPY_AND_ASSIGN(ExtensionViewViews);
113};
114
115#endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_VIEW_VIEWS_H_
116