1 // Copyright (c) 2011 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_VIEWS_WIDGET_AERO_TOOLTIP_MANAGER_H_ 6 #define UI_VIEWS_WIDGET_AERO_TOOLTIP_MANAGER_H_ 7 8 #include "base/memory/ref_counted.h" 9 #include "ui/views/widget/tooltip_manager_win.h" 10 11 namespace views { 12 13 /////////////////////////////////////////////////////////////////////////////// 14 // AeroTooltipManager 15 // 16 // Default Windows tooltips are broken when using our custom window frame 17 // - as soon as the tooltip receives a WM_MOUSEMOVE event, it starts spewing 18 // NCHITTEST messages at its parent window (us). These messages have random 19 // x/y coordinates and can't be ignored, as the DwmDefWindowProc uses 20 // NCHITTEST messages to determine how to highlight the caption buttons 21 // (the buttons then flicker as the hit tests sent by the user's mouse 22 // trigger different effects to those sent by the tooltip). 23 // 24 // So instead, we have to partially implement tooltips ourselves using 25 // TTF_TRACKed tooltips. 26 // 27 // TODO(glen): Resolve this with Microsoft. 28 class AeroTooltipManager : public TooltipManagerWin { 29 public: 30 explicit AeroTooltipManager(Widget* widget); 31 virtual ~AeroTooltipManager(); 32 33 virtual void OnMouse(UINT u_msg, WPARAM w_param, LPARAM l_param); 34 35 private: 36 void OnTimer(); 37 38 class InitialTimer : public base::RefCounted<InitialTimer> { 39 public: 40 explicit InitialTimer(AeroTooltipManager* manager); 41 void Start(int time); 42 void Disown(); 43 void Execute(); 44 45 private: 46 friend class base::RefCounted<InitialTimer>; 47 48 ~InitialTimer() {} 49 50 AeroTooltipManager* manager_; 51 }; 52 53 int initial_delay_; 54 scoped_refptr<InitialTimer> initial_timer_; 55 }; 56 57 } // namespace views 58 59 #endif // UI_VIEWS_WIDGET_AERO_TOOLTIP_MANAGER_H_ 60
