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_DETACHABLE_TOOLBAR_VIEW_H_ 6 #define CHROME_BROWSER_UI_VIEWS_DETACHABLE_TOOLBAR_VIEW_H_ 7 #pragma once 8 9 #include "chrome/browser/ui/views/accessible_pane_view.h" 10 11 class SkBitmap; 12 struct SkRect; 13 14 // DetachableToolbarView contains functionality common to views that can detach 15 // from the Chrome frame, such as the BookmarkBarView and the Extension shelf. 16 class DetachableToolbarView : public AccessiblePaneView { 17 public: 18 // The color gradient start value close to the edge of the divider. 19 static const SkColor kEdgeDividerColor; 20 // The color gradient value for the middle of the divider. 21 static const SkColor kMiddleDividerColor; 22 23 DetachableToolbarView() {} 24 virtual ~DetachableToolbarView() {} 25 26 // Whether the view is currently detached from the Chrome frame. 27 virtual bool IsDetached() const = 0; 28 29 // Gets the current state of the resize animation (show/hide). 30 virtual double GetAnimationValue() const = 0; 31 32 // Gets the current amount of overlap atop the browser toolbar. 33 virtual int GetToolbarOverlap() const = 0; 34 35 // Paints the background (including the theme image behind content area) when 36 // the bar/shelf is attached to the top toolbar. |background_origin| is the 37 // origin to use for painting the theme image. 38 static void PaintBackgroundAttachedMode(gfx::Canvas* canvas, 39 views::View* view, 40 const gfx::Point& background_origin); 41 42 // Calculate the rect for the content area of the bar/shelf. This is only 43 // needed when the bar/shelf is detached from the Chrome frame (otherwise the 44 // content area is the whole area of the bar/shelf. When detached, however, 45 // only a small round rectangle is for drawing our content on. This calculates 46 // how big this area is, where it is located within the shelf and how round 47 // the edges should be. 48 static void CalculateContentArea(double animation_state, 49 double horizontal_padding, 50 double vertical_padding, 51 SkRect* rect, 52 double* roundness, 53 views::View* view); 54 55 // Paint the horizontal border separating the shelf/bar from the page content. 56 static void PaintHorizontalBorder(gfx::Canvas* canvas, 57 DetachableToolbarView* view); 58 59 // Paint the background of the content area (the surface behind the 60 // bookmarks or extension toolstrips). |rect| is the rectangle to paint 61 // the background within. |roundness| describes the roundness of the corners. 62 static void PaintContentAreaBackground(gfx::Canvas* canvas, 63 ui::ThemeProvider* theme_provider, 64 const SkRect& rect, 65 double roundness); 66 // Paint the border around the content area (when in detached mode). 67 static void PaintContentAreaBorder(gfx::Canvas* canvas, 68 ui::ThemeProvider* theme_provider, 69 const SkRect& rect, 70 double roundness); 71 72 // Paint a themed gradient divider at location |x|. |height| is the full 73 // height of the view you want to paint the divider into, not the height of 74 // the divider. The height of the divider will become: 75 // |height| - 2 * |vertical_padding|. 76 // The color of the divider is a gradient starting with |top_color| at the 77 // top, and changing into |middle_color| and then over to |bottom_color| as 78 // you go further down. 79 static void PaintVerticalDivider(gfx::Canvas* canvas, 80 int x, 81 int height, 82 int vertical_padding, 83 const SkColor& top_color, 84 const SkColor& middle_color, 85 const SkColor& bottom_color); 86 87 private: 88 DISALLOW_COPY_AND_ASSIGN(DetachableToolbarView); 89 }; 90 91 #endif // CHROME_BROWSER_UI_VIEWS_DETACHABLE_TOOLBAR_VIEW_H_ 92
