ui/base/cocoa/tool_tip_base_view.h

   1 // Copyright 2015 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 UI_BASE_COCOA_TOOL_TIP_BASE_VIEW_H_
   6 #define UI_BASE_COCOA_TOOL_TIP_BASE_VIEW_H_
   7
   8 #import <AppKit/AppKit.h>
   9
  10 #import "ui/base/cocoa/base_view.h"
  11
  12 // An NSiew that allows tooltip text to be set at the current mouse location. It
  13 // can take effect immediately, but won't appear unless the tooltip delay has
  14 // elapsed.
  15 UI_BASE_EXPORT
  16 @interface ToolTipBaseView : BaseView {
  17  @private
  18   // These are part of the magic tooltip code from WebKit's WebHTMLView:
  19   id trackingRectOwner_;  // (not retained)
  20   void* trackingRectUserData_;
  21   NSTrackingRectTag lastToolTipTag_;
  22   base::scoped_nsobject<NSString> toolTip_;
  23 }
  24
  25 // Set the current tooltip. It is the responsibility of the caller to set a nil
  26 // tooltip when the mouse cursor leaves the appropriate region.
  27 - (void)setToolTipAtMousePoint:(NSString*)string;
  28
  29 @end
  30
  31 #endif  // UI_BASE_COCOA_TOOL_TIP_BASE_VIEW_H_