| // 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. |
| |
| #include "ui/views/widget/aero_tooltip_manager.h" |
| |
| #include <windows.h> |
| #include <commctrl.h> |
| #include <shlobj.h> |
| |
| #include "base/bind.h" |
| #include "base/message_loop/message_loop.h" |
| #include "ui/base/l10n/l10n_util_win.h" |
| #include "ui/gfx/point.h" |
| #include "ui/gfx/win/dpi.h" |
| #include "ui/gfx/win/hwnd_util.h" |
| |
| namespace views { |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // AeroTooltipManager, public: |
| |
| AeroTooltipManager::AeroTooltipManager(Widget* widget) |
| : TooltipManagerWin(widget), |
| initial_delay_(0) { |
| } |
| |
| AeroTooltipManager::~AeroTooltipManager() { |
| if (initial_timer_) |
| initial_timer_->Disown(); |
| } |
| |
| void AeroTooltipManager::OnMouse(UINT u_msg, WPARAM w_param, LPARAM l_param) { |
| if (u_msg == WM_MOUSELEAVE) { |
| last_mouse_pos_.SetPoint(-1, -1); |
| UpdateTooltip(); |
| return; |
| } |
| |
| if (initial_timer_) |
| initial_timer_->Disown(); |
| |
| if (u_msg == WM_MOUSEMOVE || u_msg == WM_NCMOUSEMOVE) { |
| gfx::Point mouse_pos_in_pixels(l_param); |
| gfx::Point mouse_pos = gfx::win::ScreenToDIPPoint(mouse_pos_in_pixels); |
| if (u_msg == WM_NCMOUSEMOVE) { |
| // NC message coordinates are in screen coordinates. |
| POINT temp = mouse_pos_in_pixels.ToPOINT(); |
| ::MapWindowPoints(HWND_DESKTOP, GetParent(), &temp, 1); |
| mouse_pos_in_pixels.SetPoint(temp.x, temp.y); |
| mouse_pos = gfx::win::ScreenToDIPPoint(mouse_pos_in_pixels); |
| } |
| if (last_mouse_pos_ != mouse_pos) { |
| last_mouse_pos_ = mouse_pos; |
| UpdateTooltip(mouse_pos); |
| } |
| |
| // Delay opening of the tooltip just in case the user moves their |
| // mouse to another control. We defer this from Init because we get |
| // zero if we query it too soon. |
| if (!initial_delay_) { |
| initial_delay_ = static_cast<int>( |
| ::SendMessage(tooltip_hwnd_, TTM_GETDELAYTIME, TTDT_INITIAL, 0)); |
| } |
| initial_timer_ = new InitialTimer(this); |
| initial_timer_->Start(initial_delay_); |
| } else { |
| // Hide the tooltip and cancel any timers. |
| ::SendMessage(tooltip_hwnd_, TTM_POP, 0, 0); |
| ::SendMessage(tooltip_hwnd_, TTM_TRACKACTIVATE, false, (LPARAM)&toolinfo_); |
| return; |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // AeroTooltipManager, private: |
| |
| void AeroTooltipManager::OnTimer() { |
| initial_timer_ = NULL; |
| |
| POINT pt = last_mouse_pos_.ToPOINT(); |
| ::ClientToScreen(GetParent(), &pt); |
| |
| // Set the position and visibility. |
| if (!tooltip_showing_) { |
| ::SendMessage(tooltip_hwnd_, TTM_POPUP, 0, 0); |
| ::SendMessage(tooltip_hwnd_, TTM_TRACKPOSITION, 0, MAKELPARAM(pt.x, pt.y)); |
| ::SendMessage(tooltip_hwnd_, TTM_TRACKACTIVATE, true, (LPARAM)&toolinfo_); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // AeroTooltipManager::InitialTimer |
| |
| AeroTooltipManager::InitialTimer::InitialTimer(AeroTooltipManager* manager) |
| : manager_(manager) { |
| } |
| |
| void AeroTooltipManager::InitialTimer::Start(int time) { |
| base::MessageLoop::current()->PostDelayedTask( |
| FROM_HERE, |
| base::Bind(&InitialTimer::Execute, this), |
| base::TimeDelta::FromMilliseconds(time)); |
| } |
| |
| void AeroTooltipManager::InitialTimer::Disown() { |
| manager_ = NULL; |
| } |
| |
| void AeroTooltipManager::InitialTimer::Execute() { |
| if (manager_) |
| manager_->OnTimer(); |
| } |
| |
| } // namespace views |