MacViews: Implement Tooltips

content/browser/renderer_host/render_widget_host_view_mac.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 #include <IOSurface/IOSurfaceAPI.h>
 #include <list>
@@ skipping 13 matching lines @@
 #include "content/browser/renderer_host/input/mouse_wheel_rails_filter_mac.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/common/content_export.h"
 #include "content/common/cursors/webcursor.h"
 #include "content/common/edit_command.h"
 #import "content/public/browser/render_widget_host_view_mac_base.h"
 #include "ipc/ipc_sender.h"
 #include "third_party/WebKit/public/web/WebCompositionUnderline.h"
 #include "ui/accelerated_widget_mac/accelerated_widget_mac.h"
 #include "ui/accelerated_widget_mac/io_surface_layer.h"
-#include "ui/base/cocoa/base_view.h"
 #include "ui/base/cocoa/remote_layer_api.h"
+#import "ui/base/cocoa/tool_tip_base_view.h"
 #include "ui/gfx/display_observer.h"
 
 namespace content {
 class RenderWidgetHostImpl;
 class RenderWidgetHostViewMac;
 class RenderWidgetHostViewMacEditCommandHelper;
 class WebContents;
 }
 
 namespace ui {
 class Compositor;
 class Layer;
 }
 
 @class FullscreenWindowManager;
 @protocol RenderWidgetHostViewMacDelegate;
-@class ToolTip;
 
 @protocol RenderWidgetHostViewMacOwner
 - (content::RenderWidgetHostViewMac*)renderWidgetHostViewMac;
 @end
 
 // This is the view that lives in the Cocoa view hierarchy. In Windows-land,
 // RenderWidgetHostViewWin is both the view and the delegate. We split the roles
 // but that means that the view needs to own the delegate and will dispose of it
 // when it's removed from the view system.
 @interface RenderWidgetHostViewCocoa
-    : BaseView <RenderWidgetHostViewMacBase,
-                RenderWidgetHostViewMacOwner,
-                NSTextInputClient> {
+    : ToolTipBaseView<RenderWidgetHostViewMacBase,
+                      RenderWidgetHostViewMacOwner,
+                      NSTextInputClient> {
  @private
   scoped_ptr<content::RenderWidgetHostViewMac> renderWidgetHostView_;
   // This ivar is the cocoa delegate of the NSResponder.
   base::scoped_nsobject<NSObject<RenderWidgetHostViewMacDelegate>>
       responderDelegate_;
   BOOL canBeKeyView_;
   BOOL closeOnDeactivate_;
   BOOL opaque_;
   scoped_ptr<content::RenderWidgetHostViewMacEditCommandHelper>
       editCommand_helper_;
 
-  // These are part of the magic tooltip code from WebKit's WebHTMLView:
-  id trackingRectOwner_;              // (not retained)
-  void* trackingRectUserData_;
-  NSTrackingRectTag lastToolTipTag_;
-  base::scoped_nsobject<NSString> toolTip_;
-
   // Is YES if there was a mouse-down as yet unbalanced with a mouse-up.
   BOOL hasOpenMouseDown_;
 
   NSWindow* lastWindow_;  // weak
 
   // The cursor for the page. This is passed up from the renderer.
   base::scoped_nsobject<NSCursor> currentCursor_;
 
   // Variables used by our implementaion of the NSTextInput protocol.
   // An input method of Mac calls the methods of this protocol not only to
@@ skipping 94 matching lines @@
   // orientation.
   content::MouseWheelRailsFilterMac mouseWheelFilter_;
 }
 
 @property(nonatomic, readonly) NSRange selectedRange;
 @property(nonatomic, readonly) BOOL suppressNextEscapeKeyUp;
 
 - (void)setCanBeKeyView:(BOOL)can;
 - (void)setCloseOnDeactivate:(BOOL)b;
 - (void)setOpaque:(BOOL)opaque;
-- (void)setToolTipAtMousePoint:(NSString *)string;
 // True for always-on-top special windows (e.g. Balloons and Panels).
 - (BOOL)acceptsMouseEventsWhenInactive;
 // Cancel ongoing composition (abandon the marked text).
 - (void)cancelComposition;
 // Confirm ongoing composition.
 - (void)confirmComposition;
 // Enables or disables plugin IME.
 - (void)setPluginImeActive:(BOOL)active;
 // Updates the current plugin focus state.
 - (void)pluginFocusChanged:(BOOL)focused forPlugin:(int)pluginId;
@@ skipping 383 matching lines @@
 
   // Factory used to safely scope delayed calls to ShutdownHost().
   base::WeakPtrFactory<RenderWidgetHostViewMac> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewMac);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_