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_INFOBARS_INFOBAR_VIEW_H_ 6 #define CHROME_BROWSER_UI_VIEWS_INFOBARS_INFOBAR_VIEW_H_ 7 8 #include "base/basictypes.h" 9 #include "base/compiler_specific.h" 10 #include "components/infobars/core/infobar.h" 11 #include "components/infobars/core/infobar_container.h" 12 #include "third_party/skia/include/core/SkPath.h" 13 #include "ui/views/controls/button/button.h" 14 #include "ui/views/controls/menu/menu_types.h" 15 #include "ui/views/focus/external_focus_tracker.h" 16 17 namespace ui { 18 class MenuModel; 19 } 20 21 namespace views { 22 class ImageButton; 23 class ImageView; 24 class Label; 25 class LabelButton; 26 class Link; 27 class LinkListener; 28 class MenuButton; 29 class MenuButtonListener; 30 class MenuRunner; 31 } // namespace views 32 33 class InfoBarView : public infobars::InfoBar, 34 public views::View, 35 public views::ButtonListener, 36 public views::ExternalFocusTracker { 37 public: 38 explicit InfoBarView(scoped_ptr<infobars::InfoBarDelegate> delegate); 39 40 const SkPath& fill_path() const { return fill_path_; } 41 const SkPath& stroke_path() const { return stroke_path_; } 42 43 protected: 44 typedef std::vector<views::Label*> Labels; 45 46 static const int kButtonButtonSpacing; 47 static const int kEndOfLabelSpacing; 48 49 virtual ~InfoBarView(); 50 51 // Creates a label with the appropriate font and color for an infobar. 52 views::Label* CreateLabel(const base::string16& text) const; 53 54 // Creates a link with the appropriate font and color for an infobar. 55 // NOTE: Subclasses must ignore link clicks if we're unowned. 56 views::Link* CreateLink(const base::string16& text, 57 views::LinkListener* listener) const; 58 59 // Creates a menu button with an infobar-specific appearance. 60 // NOTE: Subclasses must ignore button presses if we're unowned. 61 static views::MenuButton* CreateMenuButton( 62 const base::string16& text, 63 views::MenuButtonListener* menu_button_listener); 64 65 // Creates a button with an infobar-specific appearance. 66 // NOTE: Subclasses must ignore button presses if we're unowned. 67 static views::LabelButton* CreateLabelButton(views::ButtonListener* listener, 68 const base::string16& text); 69 70 // Given |labels| and the total |available_width| to display them in, sets 71 // each label's size so that the longest label shrinks until it reaches the 72 // length of the next-longest label, then both shrink until reaching the 73 // length of the next-longest, and so forth. 74 static void AssignWidths(Labels* labels, int available_width); 75 76 // views::View: 77 virtual void Layout() OVERRIDE; 78 virtual void ViewHierarchyChanged( 79 const ViewHierarchyChangedDetails& details) OVERRIDE; 80 81 // views::ButtonListener: 82 // NOTE: This must not be called if we're unowned. (Subclasses should ignore 83 // calls to ButtonPressed() in this case.) 84 virtual void ButtonPressed(views::Button* sender, 85 const ui::Event& event) OVERRIDE; 86 87 // Returns the minimum width the content (that is, everything between the icon 88 // and the close button) can be shrunk to. This is used to prevent the close 89 // button from overlapping views that cannot be shrunk any further. 90 virtual int ContentMinimumWidth() const; 91 92 // These return x coordinates delimiting the usable area for subclasses to lay 93 // out their controls. 94 int StartX() const; 95 int EndX() const; 96 97 // Given a |view|, returns the centered y position within us, taking into 98 // account animation so the control "slides in" (or out) as we animate open 99 // and closed. 100 int OffsetY(views::View* view) const; 101 102 // Convenience getter. 103 const infobars::InfoBarContainer::Delegate* container_delegate() const; 104 105 // Shows a menu at the specified position. 106 // NOTE: This must not be called if we're unowned. (Subclasses should ignore 107 // calls to RunMenu() in this case.) 108 void RunMenuAt(ui::MenuModel* menu_model, 109 views::MenuButton* button, 110 views::MenuAnchorPosition anchor); 111 112 private: 113 // Does the actual work for AssignWidths(). Assumes |labels| is sorted by 114 // decreasing preferred width. 115 static void AssignWidthsSorted(Labels* labels, int available_width); 116 117 // InfoBar: 118 virtual void PlatformSpecificShow(bool animate) OVERRIDE; 119 virtual void PlatformSpecificHide(bool animate) OVERRIDE; 120 virtual void PlatformSpecificOnHeightsRecalculated() OVERRIDE; 121 122 // views::View: 123 virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE; 124 virtual gfx::Size GetPreferredSize() const OVERRIDE; 125 virtual void PaintChildren(gfx::Canvas* canvas, 126 const views::CullSet& cull_set) OVERRIDE; 127 128 // views::ExternalFocusTracker: 129 virtual void OnWillChangeFocus(View* focused_before, 130 View* focused_now) OVERRIDE; 131 132 // The optional icon at the left edge of the InfoBar. 133 views::ImageView* icon_; 134 135 // The close button at the right edge of the InfoBar. 136 views::ImageButton* close_button_; 137 138 // The paths for the InfoBarBackground to draw, sized according to the heights 139 // above. 140 SkPath fill_path_; 141 SkPath stroke_path_; 142 143 // Used to run the menu. 144 scoped_ptr<views::MenuRunner> menu_runner_; 145 146 DISALLOW_COPY_AND_ASSIGN(InfoBarView); 147 }; 148 149 #endif // CHROME_BROWSER_UI_VIEWS_INFOBARS_INFOBAR_VIEW_H_ 150
