chrome/browser/ui/cocoa/extensions/extension_view_mac.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_COCOA_EXTENSIONS_EXTENSION_VIEW_MAC_H_
   6 #define CHROME_BROWSER_UI_COCOA_EXTENSIONS_EXTENSION_VIEW_MAC_H_
   7
   8 #include "base/basictypes.h"
   9 #include "third_party/skia/include/core/SkBitmap.h"
  10 #include "ui/gfx/native_widget_types.h"
  11 #include "ui/gfx/size.h"
  12
  13 class Browser;
  14 class SkBitmap;
  15
  16 namespace content {
  17 class RenderViewHost;
  18 }
  19
  20 namespace extensions {
  21 class ExtensionHost;
  22 }
  23
  24 // This class represents extension views. An extension view internally contains
  25 // a bridge to an extension process, which draws to the extension view's
  26 // native view object through IPC.
  27 class ExtensionViewMac {
  28  public:
  29   class Container {
  30    public:
  31     virtual ~Container() {}
  32     virtual void OnExtensionSizeChanged(ExtensionViewMac* view,
  33                                         const gfx::Size& new_size) {}
  34     virtual void OnExtensionViewDidShow(ExtensionViewMac* view) {};
  35   };
  36
  37   ExtensionViewMac(extensions::ExtensionHost* extension_host, Browser* browser);
  38   ~ExtensionViewMac();
  39
  40   // Starts the extension process and creates the native view. You must call
  41   // this method before calling any of this class's other methods.
  42   void Init();
  43
  44   // Returns the extension's native view.
  45   gfx::NativeView native_view();
  46
  47   // Returns the browser the extension belongs to.
  48   Browser* browser() const { return browser_; }
  49
  50   // Method for the ExtensionHost to notify us that the extension page is
  51   // loaded.
  52   void DidStopLoading();
  53
  54   // Sets the container for this view.
  55   void set_container(Container* container) { container_ = container; }
  56
  57   // Method for the ExtensionHost to notify us about the correct size for
  58   // extension contents.
  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   // Informs the view that its containing window's frame changed.
  66   void WindowFrameChanged();
  67
  68   // The minimum/maximum dimensions of the popup.
  69   // The minimum is just a little larger than the size of the button itself.
  70   // The maximum is an arbitrary number that should be smaller than most
  71   // screens.
  72   static const CGFloat kMinWidth;
  73   static const CGFloat kMinHeight;
  74   static const CGFloat kMaxWidth;
  75   static const CGFloat kMaxHeight;
  76
  77  private:
  78   content::RenderViewHost* render_view_host() const;
  79
  80   void CreateWidgetHostView();
  81
  82   // We wait to show the ExtensionView until several things have loaded.
  83   void ShowIfCompletelyLoaded();
  84
  85   Browser* browser_;  // weak
  86
  87   extensions::ExtensionHost* extension_host_;  // weak
  88
  89   // What we should set the preferred width to once the ExtensionView has
  90   // loaded.
  91   gfx::Size pending_preferred_size_;
  92
  93   Container* container_;
  94
  95   DISALLOW_COPY_AND_ASSIGN(ExtensionViewMac);
  96 };
  97
  98 #endif  // CHROME_BROWSER_UI_COCOA_EXTENSIONS_EXTENSION_VIEW_MAC_H_