ui/views/widget/tooltip_manager_aura.h

   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_TOOLTIP_MANAGER_AURA_H_
   6 #define UI_VIEWS_WIDGET_TOOLTIP_MANAGER_AURA_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "base/strings/string16.h"
  10 #include "ui/gfx/geometry/point.h"
  11 #include "ui/views/widget/tooltip_manager.h"
  12
  13 namespace aura {
  14 class Window;
  15 }
  16
  17 namespace gfx {
  18 class FontList;
  19 }
  20
  21 namespace views {
  22
  23 class Widget;
  24
  25 // TooltipManager implementation for Aura.
  26 class TooltipManagerAura : public TooltipManager {
  27  public:
  28   explicit TooltipManagerAura(Widget* widget);
  29   ~TooltipManagerAura() override;
  30
  31   // If |source| has capture this finds the Widget under the mouse and invokes
  32   // UpdateTooltip() on it's TooltipManager. This is necessary as when capture
  33   // is held mouse events are only delivered to the Window that has capture even
  34   // though we may show tooltips for the Window under the mouse.
  35   static void UpdateTooltipManagerForCapture(Widget* source);
  36
  37   // Returns the FontList used by all TooltipManagerAuras.
  38   static const gfx::FontList& GetDefaultFontList();
  39
  40   // TooltipManager:
  41   int GetMaxWidth(const gfx::Point& location,
  42                   aura::Window* context) const override;
  43   const gfx::FontList& GetFontList() const override;
  44   void UpdateTooltip() override;
  45   void TooltipTextChanged(View* view) override;
  46
  47  private:
  48   View* GetViewUnderPoint(const gfx::Point& point);
  49   void UpdateTooltipForTarget(View* target,
  50                               const gfx::Point& point,
  51                               aura::Window* root_window);
  52
  53   // Returns the Window the tooltip text is installed on.
  54   aura::Window* GetWindow();
  55
  56   Widget* widget_;
  57   base::string16 tooltip_text_;
  58
  59   DISALLOW_COPY_AND_ASSIGN(TooltipManagerAura);
  60 };
  61
  62 }  // namespace views
  63
  64 #endif  // UI_VIEWS_WIDGET_TOOLTIP_MANAGER_AURA_H_