Home | History | Annotate | Download | only in tabs
      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_SIDE_TAB_STRIP_H_
      6 #define CHROME_BROWSER_UI_VIEWS_TABS_SIDE_TAB_STRIP_H_
      7 #pragma once
      8 
      9 #include "chrome/browser/ui/views/tabs/base_tab_strip.h"
     10 #include "views/controls/button/button.h"
     11 
     12 struct TabRendererData;
     13 
     14 class SideTabStrip : public BaseTabStrip, public views::ButtonListener {
     15  public:
     16   // The tabs are inset by this much along all axis.
     17   static const int kTabStripInset;
     18 
     19   explicit SideTabStrip(TabStripController* controller);
     20   virtual ~SideTabStrip();
     21 
     22   // AbstractTabStripView implementation:
     23   virtual bool IsPositionInWindowCaption(const gfx::Point& point) OVERRIDE;
     24   virtual void SetBackgroundOffset(const gfx::Point& offset) OVERRIDE;
     25 
     26   // BaseTabStrip implementation:
     27   virtual void StartHighlight(int model_index) OVERRIDE;
     28   virtual void StopAllHighlighting() OVERRIDE;
     29   virtual BaseTab* CreateTabForDragging() OVERRIDE;
     30   virtual void RemoveTabAt(int model_index) OVERRIDE;
     31   virtual void SelectTabAt(int old_model_index, int new_model_index) OVERRIDE;
     32   virtual void TabTitleChangedNotLoading(int model_index) OVERRIDE;
     33 
     34   // views::View overrides:
     35   virtual gfx::Size GetPreferredSize() OVERRIDE;
     36   virtual void PaintChildren(gfx::Canvas* canvas) OVERRIDE;
     37   virtual views::View* GetEventHandlerForPoint(
     38       const gfx::Point& point) OVERRIDE;
     39 
     40   // views::ButtonListener overrides:
     41   virtual void ButtonPressed(views::Button* sender,
     42                              const views::Event& event) OVERRIDE;
     43 
     44  protected:
     45   // BaseTabStrip overrides:
     46   virtual BaseTab* CreateTab() OVERRIDE;
     47   virtual void GenerateIdealBounds() OVERRIDE;
     48   virtual void StartInsertTabAnimation(int model_index) OVERRIDE;
     49   virtual void AnimateToIdealBounds() OVERRIDE;
     50   virtual void DoLayout() OVERRIDE;
     51   virtual void LayoutDraggedTabsAt(const std::vector<BaseTab*>& tabs,
     52                                    BaseTab* active_tab,
     53                                    const gfx::Point& location,
     54                                    bool initial_drag) OVERRIDE;
     55   virtual void CalculateBoundsForDraggedTabs(
     56       const std::vector<BaseTab*>& tabs,
     57       std::vector<gfx::Rect>* bounds) OVERRIDE;
     58   virtual int GetSizeNeededForTabs(const std::vector<BaseTab*>& tabs) OVERRIDE;
     59 
     60   // views::View protected overrides:
     61   virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE;
     62 
     63  private:
     64   // Sets |first_tab_y_offset_|. This ensures |new_offset| is legal.
     65   void SetFirstTabYOffset(int new_offset);
     66 
     67   // Returns the max y offset.
     68   int GetMaxOffset() const;
     69 
     70   // Returns the max visible y-coordinate for tabs.
     71   int GetMaxTabY() const;
     72 
     73   // Make sure the tab at |tab_index| is visible.
     74   void MakeTabVisible(int tab_index);
     75 
     76   // The "New Tab" button.
     77   views::View* newtab_button_;
     78 
     79   // Ideal bounds of the new tab button.
     80   gfx::Rect newtab_button_bounds_;
     81 
     82   // Scroll buttons.
     83   views::View* scroll_up_button_;
     84   views::View* scroll_down_button_;
     85 
     86   // Separator between mini-tabs and the new tab button. The separator is
     87   // positioned above the visible area if there are no mini-tabs.
     88   views::View* separator_;
     89 
     90   // Bounds of the sepatator.
     91   gfx::Rect separator_bounds_;
     92 
     93   // Offset the first tab (or new tab button) is positioned at. If the user has
     94   // scrolled the tabs this is non-zero.
     95   int first_tab_y_offset_;
     96 
     97   // Height needed to display the tabs, separator and new tab button. Doesn't
     98   // include any padding.
     99   int ideal_height_;
    100 
    101   DISALLOW_COPY_AND_ASSIGN(SideTabStrip);
    102 };
    103 
    104 #endif  // CHROME_BROWSER_UI_VIEWS_TABS_SIDE_TAB_STRIP_H_
    105