Revert "views: Move widget/ directory to ui/views." properly.

views/widget/tooltip_manager_win.h

+// Copyright (c) 2011 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 VIEWS_WIDGET_TOOLTIP_MANAGER_WIN_H_
+#define VIEWS_WIDGET_TOOLTIP_MANAGER_WIN_H_
+#pragma once
+
+#include <windows.h>
+#include <commctrl.h>
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/memory/weak_ptr.h"
+#include "base/string16.h"
+#include "ui/gfx/native_widget_types.h"
+#include "ui/gfx/point.h"
+#include "views/widget/tooltip_manager.h"
+
+namespace gfx {
+class Point;
+}
+
+namespace views {
+
+class View;
+class Widget;
+
+// TooltipManager implementation for Windows.
+//
+// This class is intended to be used by NativeWidgetWin. To use this, you must
+// do the following:
+// Add the following to your MSG_MAP:
+//
+//   MESSAGE_RANGE_HANDLER(WM_MOUSEFIRST, WM_MOUSELAST, OnMouseRange)
+//   MESSAGE_RANGE_HANDLER(WM_NCMOUSEMOVE, WM_NCMOUSEMOVE, OnMouseRange)
+//   MSG_WM_NOTIFY(OnNotify)
+//
+// With the following implementations:
+//   LRESULT XXX::OnMouseRange(UINT u_msg, WPARAM w_param, LPARAM l_param,
+//                             BOOL& handled) {
+//     tooltip_manager_->OnMouse(u_msg, w_param, l_param);
+//     handled = FALSE;
+//     return 0;
+//   }
+//
+//   LRESULT XXX::OnNotify(int w_param, NMHDR* l_param) {
+//     bool handled;
+//     LRESULT result = tooltip_manager_->OnNotify(w_param, l_param, &handled);
+//     SetMsgHandled(handled);
+//     return result;
+//   }
+//
+// And of course you'll need to create the TooltipManager!
+//
+// Lastly, you'll need to override GetTooltipManager.
+//
+// See NativeWidgetWin for an example of this in action.
+class TooltipManagerWin : public TooltipManager {
+ public:
+  // Creates a TooltipManager for the specified Widget and parent window.
+  explicit TooltipManagerWin(Widget* widget);
+  virtual ~TooltipManagerWin();
+
+  // Initializes the TooltipManager returning whether initialization was
+  // successful. If this returns false the TooltipManager should be destroyed
+  // and not used.
+  bool Init();
+
+  // Notification that the view hierarchy has changed in some way.
+  virtual void UpdateTooltip();
+
+  // Invoked when the tooltip text changes for the specified views.
+  virtual void TooltipTextChanged(View* view);
+
+  // Invoked when toolbar icon gets focus.
+  virtual void ShowKeyboardTooltip(View* view);
+
+  // Invoked when toolbar loses focus.
+  virtual void HideKeyboardTooltip();
+
+  // Message handlers. These forward to the tooltip control.
+  virtual void OnMouse(UINT u_msg, WPARAM w_param, LPARAM l_param);
+  LRESULT OnNotify(int w_param, NMHDR* l_param, bool* handled);
+
+ protected:
+  // Returns the Widget we're showing tooltips for.
+  gfx::NativeView GetParent();
+
+  // Updates the tooltip for the specified location.
+  void UpdateTooltip(const gfx::Point& location);
+
+  // Tooltip control window.
+  HWND tooltip_hwnd_;
+
+  // Tooltip information.
+  TOOLINFO toolinfo_;
+
+  // Last location of the mouse. This is in the coordinates of the rootview.
+  gfx::Point last_mouse_pos_;
+
+  // Whether or not the tooltip is showing.
+  bool tooltip_showing_;
+
+ private:
+  // Sets the tooltip position based on the x/y position of the text. If the
+  // tooltip fits, true is returned.
+  bool SetTooltipPosition(int text_x, int text_y);
+
+  // Calculates the preferred height for tooltips. This always returns a
+  // positive value.
+  int CalcTooltipHeight();
+
+  // Invoked when the timer elapses and tooltip has to be destroyed.
+  void DestroyKeyboardTooltipWindow(HWND window_to_destroy);
+
+  // Hosting Widget.
+  Widget* widget_;
+
+  // The View the mouse is under. This is null if the mouse isn't under a
+  // View.
+  View* last_tooltip_view_;
+
+  // Whether or not the view under the mouse needs to be refreshed. If this
+  // is true, when the tooltip is asked for the view under the mouse is
+  // refreshed.
+  bool last_view_out_of_sync_;
+
+  // Text for tooltip from the view.
+  string16 tooltip_text_;
+
+  // The clipped tooltip.
+  string16 clipped_text_;
+
+  // Number of lines in the tooltip.
+  int line_count_;
+
+  // Width of the last tooltip.
+  int tooltip_width_;
+
+  // control window for tooltip displayed using keyboard.
+  HWND keyboard_tooltip_hwnd_;
+
+  // Used to register DestroyTooltipWindow function with PostDelayedTask
+  // function.
+  base::WeakPtrFactory<TooltipManagerWin> keyboard_tooltip_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(TooltipManagerWin);
+};
+
+}  // namespace views
+
+#endif // VIEWS_WIDGET_TOOLTIP_MANAGER_WIN_H_