chrome/browser/ui/views/extensions/extension_view_views.h

   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_host.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 #include "ui/views/controls/webview/unhandled_keyboard_event_handler.h"
  15
  16 class Browser;
  17
  18 namespace content {
  19 class RenderViewHost;
  20 }
  21
  22 // This handles the display portion of an ExtensionHost.
  23 class ExtensionViewViews : public views::NativeViewHost {
  24  public:
  25   // A class that represents the container that this view is in.
  26   // (bottom shelf, side bar, etc.)
  27   class Container {
  28    public:
  29     virtual ~Container() {}
  30
  31     virtual void OnExtensionSizeChanged(ExtensionViewViews* view) {}
  32   };
  33
  34   ExtensionViewViews(extensions::ExtensionHost* host, Browser* browser);
  35   virtual ~ExtensionViewViews();
  36
  37   // views::NativeViewHost:
  38   virtual gfx::Size GetMinimumSize() OVERRIDE;
  39   virtual void SetVisible(bool is_visible) OVERRIDE;
  40   virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE;
  41   virtual void ViewHierarchyChanged(
  42       const ViewHierarchyChangedDetails& details) OVERRIDE;
  43
  44   extensions::ExtensionHost* host() const { return host_; }
  45   const extensions::Extension* extension() const { return host_->extension(); }
  46   content::RenderViewHost* render_view_host() const {
  47     return host_->render_view_host();
  48   }
  49   Browser* browser() const { return browser_; }
  50   void set_minimum_size(const gfx::Size& minimum_size) {
  51     minimum_size_ = minimum_size;
  52   }
  53   void set_container(Container* container) { container_ = container; }
  54
  55   void DidStopLoading();
  56   void SetIsClipped(bool is_clipped);
  57
  58   // Notification from ExtensionHost.
  59   void ResizeDueToAutoResize(const gfx::Size& new_size);
  60
  61   // Method for the ExtensionHost to notify us when the RenderViewHost has a
  62   // connection.
  63   void RenderViewCreated();
  64
  65   // Handles unhandled keyboard messages coming back from the renderer process.
  66   void HandleKeyboardEvent(const content::NativeWebKeyboardEvent& event);
  67
  68  private:
  69   friend class extensions::ExtensionHost;
  70
  71   // views::NativeViewHost:
  72   virtual bool SkipDefaultKeyEventProcessing(const ui::KeyEvent& e) OVERRIDE;
  73   virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE;
  74   virtual void PreferredSizeChanged() OVERRIDE;
  75   virtual void OnFocus() OVERRIDE;
  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   gfx::Size minimum_size_;
 101
 102   // The container this view is in (not necessarily its direct superview).
 103   // Note: the view does not own its container.
 104   Container* container_;
 105
 106   // Whether this extension view is clipped.
 107   bool is_clipped_;
 108
 109   // A handler to handle unhandled keyboard messages coming back from the
 110   // renderer process.
 111   views::UnhandledKeyboardEventHandler unhandled_keyboard_event_handler_;
 112
 113   DISALLOW_COPY_AND_ASSIGN(ExtensionViewViews);
 114 };
 115
 116 #endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_VIEW_VIEWS_H_