1 // Copyright (c) 2012 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_TABS_TAB_CONTROLLER_H_ 6 #define CHROME_BROWSER_UI_VIEWS_TABS_TAB_CONTROLLER_H_ 7 8 #include "chrome/browser/ui/views/tabs/tab_strip_types.h" 9 10 class Tab; 11 12 namespace gfx { 13 class Point; 14 } 15 namespace ui { 16 class ListSelectionModel; 17 class LocatedEvent; 18 class MouseEvent; 19 } 20 namespace views { 21 class View; 22 } 23 24 // Controller for tabs. 25 class TabController { 26 public: 27 virtual const ui::ListSelectionModel& GetSelectionModel() = 0; 28 29 // Returns true if multiple selection is supported. 30 virtual bool SupportsMultipleSelection() = 0; 31 32 // Selects the tab. 33 virtual void SelectTab(Tab* tab) = 0; 34 35 // Extends the selection from the anchor to |tab|. 36 virtual void ExtendSelectionTo(Tab* tab) = 0; 37 38 // Toggles whether |tab| is selected. 39 virtual void ToggleSelected(Tab* tab) = 0; 40 41 // Adds the selection from the anchor to |tab|. 42 virtual void AddSelectionFromAnchorTo(Tab* tab) = 0; 43 44 // Closes the tab. 45 virtual void CloseTab(Tab* tab, CloseTabSource source) = 0; 46 47 // Shows a context menu for the tab at the specified point in screen coords. 48 virtual void ShowContextMenuForTab(Tab* tab, 49 const gfx::Point& p, 50 ui::MenuSourceType source_type) = 0; 51 52 // Returns true if |tab| is the active tab. The active tab is the one whose 53 // content is shown in the browser. 54 virtual bool IsActiveTab(const Tab* tab) const = 0; 55 56 // Returns true if the specified Tab is selected. 57 virtual bool IsTabSelected(const Tab* tab) const = 0; 58 59 // Returns true if the specified Tab is pinned. 60 virtual bool IsTabPinned(const Tab* tab) const = 0; 61 62 // Potentially starts a drag for the specified Tab. 63 virtual void MaybeStartDrag( 64 Tab* tab, 65 const ui::LocatedEvent& event, 66 const ui::ListSelectionModel& original_selection) = 0; 67 68 // Continues dragging a Tab. 69 virtual void ContinueDrag(views::View* view, 70 const ui::LocatedEvent& event) = 0; 71 72 // Ends dragging a Tab. Returns whether the tab has been destroyed. 73 virtual bool EndDrag(EndDragReason reason) = 0; 74 75 // Returns the tab that contains the specified coordinates, in terms of |tab|, 76 // or NULL if there is no tab that contains the specified point. 77 virtual Tab* GetTabAt(Tab* tab, 78 const gfx::Point& tab_in_tab_coordinates) = 0; 79 80 // Invoked when a mouse event occurs on |source|. 81 virtual void OnMouseEventInTab(views::View* source, 82 const ui::MouseEvent& event) = 0; 83 84 // Returns true if |tab| needs to be painted. If false is returned the tab is 85 // not painted. If true is returned the tab should be painted and |clip| is 86 // set to the clip (if |clip| is empty means no clip). 87 virtual bool ShouldPaintTab(const Tab* tab, gfx::Rect* clip) = 0; 88 89 // Returns true if tabs painted in the rectangular light-bar style. 90 virtual bool IsImmersiveStyle() const = 0; 91 92 protected: ~TabController()93 virtual ~TabController() {} 94 }; 95 96 #endif // CHROME_BROWSER_UI_VIEWS_TABS_TAB_CONTROLLER_H_ 97