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.
5 #ifndef CHROME_BROWSER_UI_VIEWS_TOOLBAR_TOOLBAR_BUTTON_H_
6 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_TOOLBAR_BUTTON_H_
8 #include "ui/views/context_menu_controller.h"
9 #include "ui/views/controls/button/button.h"
10 #include "ui/views/controls/button/label_button.h"
20 // This class provides basic drawing and mouse-over behavior for buttons
21 // appearing in the toolbar.
22 class ToolbarButton : public views::LabelButton,
23 public views::ContextMenuController {
25 // Takes ownership of the |model|, which can be null if no menu
27 ToolbarButton(views::ButtonListener* listener, ui::MenuModel* model);
28 ~ToolbarButton() override;
30 // Set up basic mouseover border behavior.
31 // Should be called before first paint.
34 // Methods for handling ButtonDropDown-style menus.
35 void ClearPendingMenu();
36 bool IsMenuShowing() const;
38 // views::LabelButton:
39 gfx::Size GetPreferredSize() const override;
40 bool OnMousePressed(const ui::MouseEvent& event) override;
41 bool OnMouseDragged(const ui::MouseEvent& event) override;
42 void OnMouseReleased(const ui::MouseEvent& event) override;
43 // Showing the drop down results in a MouseCaptureLost, we need to ignore it.
44 void OnMouseCaptureLost() override;
45 void OnMouseExited(const ui::MouseEvent& event) override;
46 void OnGestureEvent(ui::GestureEvent* event) override;
47 void GetAccessibleState(ui::AXViewState* state) override;
48 scoped_ptr<views::LabelButtonBorder> CreateDefaultBorder() const override;
50 // views::ContextMenuController:
51 void ShowContextMenuForView(View* source,
52 const gfx::Point& point,
53 ui::MenuSourceType source_type) override;
56 // Overridden from CustomButton. Returns true if the button should become
57 // pressed when a user holds the mouse down over the button. For this
58 // implementation, both left and right mouse buttons can trigger a change
59 // to the PUSHED state.
60 bool ShouldEnterPushedState(const ui::Event& event) override;
62 // Returns if menu should be shown. Override this to change default behavior.
63 virtual bool ShouldShowMenu();
65 // Function to show the dropdown menu.
66 virtual void ShowDropDownMenu(ui::MenuSourceType source_type);
69 // The model that populates the attached menu.
70 scoped_ptr<ui::MenuModel> model_;
72 // Indicates if menu is currently showing.
75 // Y position of mouse when left mouse button is pressed
76 int y_position_on_lbuttondown_;
78 // Menu runner to display drop down menu.
79 scoped_ptr<views::MenuRunner> menu_runner_;
81 // A factory for tasks that show the dropdown context menu for the button.
82 base::WeakPtrFactory<ToolbarButton> show_menu_factory_;
84 DISALLOW_COPY_AND_ASSIGN(ToolbarButton);
87 #endif // CHROME_BROWSER_UI_VIEWS_TOOLBAR_TOOLBAR_BUTTON_H_