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 CHROME_BROWSER_UI_VIEWS_TABS_TAB_STRIP_CONTROLLER_H_ 6 #define CHROME_BROWSER_UI_VIEWS_TABS_TAB_STRIP_CONTROLLER_H_ 7 #pragma once 8 9 class BaseTab; 10 class BaseTabStrip; 11 class GURL; 12 13 namespace gfx { 14 class Point; 15 } 16 17 // Model/Controller for the TabStrip. 18 // NOTE: All indices used by this class are in model coordinates. 19 class TabStripController { 20 public: ~TabStripController()21 virtual ~TabStripController() {} 22 23 // Returns the number of tabs in the model. 24 virtual int GetCount() const = 0; 25 26 // Returns true if |index| is a valid model index. 27 virtual bool IsValidIndex(int index) const = 0; 28 29 // Returns true if the tab at |index| is the active tab. The active tab is the 30 // one whose content is shown. 31 virtual bool IsActiveTab(int index) const = 0; 32 33 // Returns true if the selected index is selected. 34 virtual bool IsTabSelected(int index) const = 0; 35 36 // Returns true if the selected index is pinned. 37 virtual bool IsTabPinned(int index) const = 0; 38 39 // Returns true if the selected index is closeable. 40 virtual bool IsTabCloseable(int index) const = 0; 41 42 // Returns true if the selected index is the new tab page. 43 virtual bool IsNewTabPage(int index) const = 0; 44 45 // Select the tab at the specified index in the model. 46 virtual void SelectTab(int index) = 0; 47 48 // Extends the selection from the anchor to the specified index in the model. 49 virtual void ExtendSelectionTo(int index) = 0; 50 51 // Toggles the selection of the specified index in the model. 52 virtual void ToggleSelected(int index) = 0; 53 54 // Adds the selection the anchor to |index|. 55 virtual void AddSelectionFromAnchorTo(int index) = 0; 56 57 // Closes the tab at the specified index in the model. 58 virtual void CloseTab(int index) = 0; 59 60 // Shows a context menu for the tab at the specified point in screen coords. 61 virtual void ShowContextMenuForTab(BaseTab* tab, const gfx::Point& p) = 0; 62 63 // Updates the loading animations of all the tabs. 64 virtual void UpdateLoadingAnimations() = 0; 65 66 // Returns true if the associated TabStrip's delegate supports tab moving or 67 // detaching. Used by the Frame to determine if dragging on the Tab 68 // itself should move the window in cases where there's only one 69 // non drag-able Tab. 70 virtual int HasAvailableDragActions() const = 0; 71 72 // Performans a drop at the specified location. 73 virtual void PerformDrop(bool drop_before, int index, const GURL& url) = 0; 74 75 // Return true if this tab strip is compatible with the provided tab strip. 76 // Compatible tab strips can transfer tabs during drag and drop. 77 virtual bool IsCompatibleWith(BaseTabStrip* other) const = 0; 78 79 // Creates the new tab. 80 virtual void CreateNewTab() = 0; 81 }; 82 83 #endif // CHROME_BROWSER_UI_VIEWS_TABS_TAB_STRIP_CONTROLLER_H_ 84