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_BOOKMARKS_BOOKMARK_BAR_INSTRUCTIONS_VIEW_H_ 6 #define CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_BAR_INSTRUCTIONS_VIEW_H_ 7 8 #include "base/basictypes.h" 9 #include "base/compiler_specific.h" 10 #include "ui/views/context_menu_controller.h" 11 #include "ui/views/controls/link_listener.h" 12 #include "ui/views/view.h" 13 14 class BookmarkBarInstructionsDelegate; 15 16 namespace views { 17 class Label; 18 class Link; 19 } 20 21 // BookmarkBarInstructionsView is a child of the bookmark bar that is visible 22 // when the user has no bookmarks on the bookmark bar. 23 // BookmarkBarInstructionsView shows a description of the bookmarks bar along 24 // with a link to import bookmarks. Clicking the link results in notifying the 25 // delegate. 26 class BookmarkBarInstructionsView : public views::View, 27 public views::LinkListener, 28 public views::ContextMenuController { 29 public: 30 explicit BookmarkBarInstructionsView( 31 BookmarkBarInstructionsDelegate* delegate); 32 33 // views::View overrides. 34 virtual gfx::Size GetPreferredSize() const OVERRIDE; 35 virtual void Layout() OVERRIDE; 36 virtual void OnThemeChanged() OVERRIDE; 37 virtual void ViewHierarchyChanged( 38 const ViewHierarchyChangedDetails& details) OVERRIDE; 39 virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE; 40 41 // views::LinkListener overrides. 42 virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE; 43 44 private: 45 virtual void ShowContextMenuForView(views::View* source, 46 const gfx::Point& point, 47 ui::MenuSourceType source_type) OVERRIDE; 48 49 void UpdateColors(); 50 51 BookmarkBarInstructionsDelegate* delegate_; 52 53 views::Label* instructions_; 54 views::Link* import_link_; 55 56 // The baseline of the child views. This is -1 if none of the views support a 57 // baseline. 58 int baseline_; 59 60 // Have the colors of the child views been updated? This is initially false 61 // and set to true once we have a valid ThemeProvider. 62 bool updated_colors_; 63 64 DISALLOW_COPY_AND_ASSIGN(BookmarkBarInstructionsView); 65 }; 66 67 #endif // CHROME_BROWSER_UI_VIEWS_BOOKMARKS_BOOKMARK_BAR_INSTRUCTIONS_VIEW_H_ 68