chrome/browser/renderer_host/chrome_render_widget_host_view_mac_delegate.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_RENDERER_HOST_CHROME_RENDER_WIDGET_HOST_VIEW_DELEGATE_H_
   6 #define CHROME_BROWSER_RENDERER_HOST_CHROME_RENDER_WIDGET_HOST_VIEW_DELEGATE_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #import "content/public/browser/render_widget_host_view_mac_delegate.h"
  12
  13 namespace content {
  14 class RenderWidgetHost;
  15 }
  16
  17 namespace ChromeRenderWidgetHostViewMacDelegateInternal {
  18 class SpellCheckRenderViewObserver;
  19 }
  20
  21 @interface ChromeRenderWidgetHostViewMacDelegate
  22     : NSObject<RenderWidgetHostViewMacDelegate> {
  23  @private
  24   content::RenderWidgetHost* renderWidgetHost_;  // weak
  25   scoped_ptr<ChromeRenderWidgetHostViewMacDelegateInternal::
  26       SpellCheckRenderViewObserver> spellingObserver_;
  27
  28   // If the viewport is scrolled all the way to the left or right.
  29   // Used for history swiping.
  30   BOOL isPinnedLeft_;
  31   BOOL isPinnedRight_;
  32
  33   // If the main frame has a horizontal scrollbar.
  34   // Used for history swiping.
  35   BOOL hasHorizontalScrollbar_;
  36
  37   // If a scroll event came back unhandled from the renderer. Set to |NO| at
  38   // the start of a scroll gesture, and then to |YES| if a scroll event comes
  39   // back unhandled from the renderer.
  40   // Used for history swiping.
  41   BOOL gotUnhandledWheelEvent_;
  42
  43   // Cumulative scroll delta since scroll gesture start. Only valid during
  44   // scroll gesture handling. Used for history swiping.
  45   NSSize totalScrollDelta_;
  46
  47   // Used for continuous spell checking.
  48   BOOL spellcheckEnabled_;
  49   BOOL spellcheckChecked_;
  50 }
  51
  52 - (id)initWithRenderWidgetHost:(content::RenderWidgetHost*)renderWidgetHost;
  53
  54 - (void)viewGone:(NSView*)view;
  55 - (BOOL)handleEvent:(NSEvent*)event;
  56 - (void)gotUnhandledWheelEvent;
  57 - (void)scrollOffsetPinnedToLeft:(BOOL)left toRight:(BOOL)right;
  58 - (void)setHasHorizontalScrollbar:(BOOL)hasHorizontalScrollbar;
  59 - (BOOL)validateUserInterfaceItem:(id<NSValidatedUserInterfaceItem>)item
  60                       isValidItem:(BOOL*)valid;
  61
  62 @end
  63
  64 #endif  // CHROME_BROWSER_RENDERER_HOST_CHROME_RENDER_WIDGET_HOST_VIEW_DELEGATE_H_