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/extensions/extension_view.h"
11#include "content/public/browser/native_web_keyboard_event.h"
12#include "extensions/browser/extension_host.h"
13#include "third_party/skia/include/core/SkBitmap.h"
14#include "ui/views/controls/native/native_view_host.h"
15#include "ui/views/controls/webview/unhandled_keyboard_event_handler.h"
16
17class Browser;
18
19namespace content {
20class RenderViewHost;
21}
22
23// This handles the display portion of an ExtensionHost.
24class ExtensionViewViews : public views::NativeViewHost,
25                           public extensions::ExtensionView {
26 public:
27  // A class that represents the container that this view is in.
28  // (bottom shelf, side bar, etc.)
29  class Container {
30   public:
31    virtual ~Container() {}
32
33    virtual void OnExtensionSizeChanged(ExtensionViewViews* view) {}
34  };
35
36  ExtensionViewViews(extensions::ExtensionHost* host, Browser* browser);
37  virtual ~ExtensionViewViews();
38
39  // views::NativeViewHost:
40  virtual gfx::Size GetMinimumSize() const OVERRIDE;
41  virtual void SetVisible(bool is_visible) OVERRIDE;
42  virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE;
43  virtual void ViewHierarchyChanged(
44      const ViewHierarchyChangedDetails& details) OVERRIDE;
45
46  extensions::ExtensionHost* host() const { return host_; }
47  const extensions::Extension* extension() const { return host_->extension(); }
48  content::RenderViewHost* render_view_host() const {
49    return host_->render_view_host();
50  }
51  void set_minimum_size(const gfx::Size& minimum_size) {
52    minimum_size_ = minimum_size;
53  }
54  void set_container(Container* container) { container_ = container; }
55
56  void SetIsClipped(bool is_clipped);
57
58  // extensions::ExtensionView:
59  virtual void Init() OVERRIDE;
60  virtual Browser* GetBrowser() OVERRIDE;
61  virtual gfx::NativeView GetNativeView() OVERRIDE;
62  virtual void ResizeDueToAutoResize(const gfx::Size& new_size) OVERRIDE;
63  virtual void RenderViewCreated() OVERRIDE;
64  virtual void HandleKeyboardEvent(
65      content::WebContents* source,
66      const content::NativeWebKeyboardEvent& event) OVERRIDE;
67  virtual void DidStopLoading() OVERRIDE;
68
69 private:
70  friend class extensions::ExtensionHost;
71
72  // views::NativeViewHost:
73  virtual bool SkipDefaultKeyEventProcessing(const ui::KeyEvent& e) OVERRIDE;
74  virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE;
75  virtual void PreferredSizeChanged() OVERRIDE;
76  virtual void OnFocus() OVERRIDE;
77
78  // Initializes the RenderWidgetHostView for this object.
79  void CreateWidgetHostView();
80
81  // We wait to show the ExtensionViewViews until several things have loaded.
82  void ShowIfCompletelyLoaded();
83
84  // Restore object to initial state. Called on shutdown or after a renderer
85  // crash.
86  void CleanUp();
87
88  // The running extension instance that we're displaying.
89  // Note that host_ owns view
90  extensions::ExtensionHost* host_;
91
92  // The browser window that this view is in.
93  Browser* browser_;
94
95  // True if we've been initialized.
96  bool initialized_;
97
98  // What we should set the preferred width to once the ExtensionViewViews has
99  // loaded.
100  gfx::Size pending_preferred_size_;
101  gfx::Size minimum_size_;
102
103  // The container this view is in (not necessarily its direct superview).
104  // Note: the view does not own its container.
105  Container* container_;
106
107  // Whether this extension view is clipped.
108  bool is_clipped_;
109
110  // A handler to handle unhandled keyboard messages coming back from the
111  // renderer process.
112  views::UnhandledKeyboardEventHandler unhandled_keyboard_event_handler_;
113
114  DISALLOW_COPY_AND_ASSIGN(ExtensionViewViews);
115};
116
117#endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_VIEW_VIEWS_H_
118