chrome/browser/ui/views/toolbar/wrench_toolbar_button.h

   1 // Copyright 2013 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 CHROME_BROWSER_UI_VIEWS_TOOLBAR_WRENCH_TOOLBAR_BUTTON_H_
   6 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_WRENCH_TOOLBAR_BUTTON_H_
   7
   8 #include "base/macros.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "chrome/browser/ui/toolbar/wrench_icon_painter.h"
  12 #include "ui/views/controls/button/menu_button.h"
  13
  14 namespace views {
  15 class LabelButtonBorder;
  16 }
  17
  18 class ToolbarView;
  19
  20 // TODO(gbillock): Rename this? No longer a wrench.
  21 class WrenchToolbarButton : public views::MenuButton,
  22                             public WrenchIconPainter::Delegate {
  23  public:
  24   explicit WrenchToolbarButton(ToolbarView* toolbar_view);
  25   ~WrenchToolbarButton() override;
  26
  27   void SetSeverity(WrenchIconPainter::Severity severity, bool animate);
  28
  29   // views::MenuButton:
  30   gfx::Size GetPreferredSize() const override;
  31
  32   // WrenchIconPainter::Delegate:
  33   void ScheduleWrenchIconPaint() override;
  34
  35   // Opens the wrench menu immediately during a drag-and-drop operation.
  36   // Used only in testing.
  37   static bool g_open_wrench_immediately_for_testing;
  38
  39  private:
  40   // views::MenuButton:
  41   const char* GetClassName() const override;
  42   bool GetDropFormats(
  43       int* formats,
  44       std::set<ui::OSExchangeData::CustomFormat>* custom_formats) override;
  45   bool AreDropTypesRequired() override;
  46   bool CanDrop(const ui::OSExchangeData& data) override;
  47   void OnDragEntered(const ui::DropTargetEvent& event) override;
  48   int OnDragUpdated(const ui::DropTargetEvent& event) override;
  49   void OnDragExited() override;
  50   int OnPerformDrop(const ui::DropTargetEvent& event) override;
  51   void OnPaint(gfx::Canvas* canvas) override;
  52
  53   // Show the extension action overflow menu (which is in the app menu).
  54   void ShowOverflowMenu();
  55
  56   scoped_ptr<WrenchIconPainter> wrench_icon_painter_;
  57
  58   // Our owning toolbar view.
  59   ToolbarView* toolbar_view_;
  60
  61   // Whether or not we should allow dragging extension icons onto this button
  62   // (in order to open the overflow in the app/wrench menu).
  63   bool allow_extension_dragging_;
  64
  65   // Used to spawn weak pointers for delayed tasks to open the overflow menu.
  66   base::WeakPtrFactory<WrenchToolbarButton> weak_factory_;
  67
  68   DISALLOW_COPY_AND_ASSIGN(WrenchToolbarButton);
  69 };
  70
  71 #endif  // CHROME_BROWSER_UI_VIEWS_TOOLBAR_WRENCH_TOOLBAR_BUTTON_H_