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_FIND_BAR_VIEW_H_ 6 #define CHROME_BROWSER_UI_VIEWS_FIND_BAR_VIEW_H_ 7 #pragma once 8 9 #include "base/string16.h" 10 #include "chrome/browser/ui/find_bar/find_notification_details.h" 11 #include "chrome/browser/ui/views/dropdown_bar_view.h" 12 #include "ui/gfx/size.h" 13 #include "views/controls/button/button.h" 14 #include "views/controls/textfield/textfield.h" 15 #include "views/controls/textfield/textfield_controller.h" 16 17 class FindBarHost; 18 19 namespace views { 20 class ImageButton; 21 class Label; 22 class MouseEvent; 23 class View; 24 } 25 26 //////////////////////////////////////////////////////////////////////////////// 27 // 28 // The FindBarView is responsible for drawing the UI controls of the 29 // FindBar, the find text box, the 'Find' button and the 'Close' 30 // button. It communicates the user search words to the FindBarHost. 31 // 32 //////////////////////////////////////////////////////////////////////////////// 33 class FindBarView : public DropdownBarView, 34 public views::ButtonListener, 35 public views::TextfieldController { 36 public: 37 // A tag denoting which button the user pressed. 38 enum ButtonTag { 39 FIND_PREVIOUS_TAG = 0, // The Find Previous button. 40 FIND_NEXT_TAG, // The Find Next button. 41 CLOSE_TAG, // The Close button (the 'X'). 42 }; 43 44 explicit FindBarView(FindBarHost* host); 45 virtual ~FindBarView(); 46 47 // Gets/sets the text displayed in the text box. 48 string16 GetFindText() const; 49 void SetFindText(const string16& find_text); 50 51 // Gets the selected text in the text box. 52 string16 GetFindSelectedText() const; 53 54 // Gets the match count text displayed in the text box. 55 string16 GetMatchCountText() const; 56 57 // Updates the label inside the Find text box that shows the ordinal of the 58 // active item and how many matches were found. 59 void UpdateForResult(const FindNotificationDetails& result, 60 const string16& find_text); 61 62 // Clears the current Match Count value in the Find text box. 63 void ClearMatchCount(); 64 65 // Claims focus for the text field and selects its contents. 66 virtual void SetFocusAndSelection(bool select_all); 67 68 // views::View: 69 virtual void OnPaint(gfx::Canvas* canvas); 70 virtual void Layout(); 71 virtual gfx::Size GetPreferredSize(); 72 virtual void ViewHierarchyChanged(bool is_add, 73 views::View* parent, 74 views::View* child); 75 76 // views::ButtonListener: 77 virtual void ButtonPressed(views::Button* sender, const views::Event& event); 78 79 // views::TextfieldController: 80 virtual void ContentsChanged(views::Textfield* sender, 81 const string16& new_contents); 82 virtual bool HandleKeyEvent(views::Textfield* sender, 83 const views::KeyEvent& key_event); 84 85 private: 86 // Update the appearance for the match count label. 87 void UpdateMatchCountAppearance(bool no_match); 88 89 // Overridden from views::View. 90 virtual void OnThemeChanged(); 91 92 // We use a hidden view to grab mouse clicks and bring focus to the find 93 // text box. This is because although the find text box may look like it 94 // extends all the way to the find button, it only goes as far as to the 95 // match_count label. The user, however, expects being able to click anywhere 96 // inside what looks like the find text box (including on or around the 97 // match_count label) and have focus brought to the find box. 98 class FocusForwarderView : public views::View { 99 public: FocusForwarderView(views::Textfield * view_to_focus_on_mousedown)100 explicit FocusForwarderView( 101 views::Textfield* view_to_focus_on_mousedown) 102 : view_to_focus_on_mousedown_(view_to_focus_on_mousedown) {} 103 104 private: 105 virtual bool OnMousePressed(const views::MouseEvent& event); 106 107 views::Textfield* view_to_focus_on_mousedown_; 108 109 DISALLOW_COPY_AND_ASSIGN(FocusForwarderView); 110 }; 111 112 // A wrapper of views::TextField that allows us to select all text when we 113 // get focus. Represents the text field where the user enters a search term. 114 class SearchTextfieldView : public views::Textfield { 115 public: 116 SearchTextfieldView(); 117 virtual ~SearchTextfieldView(); 118 119 virtual void RequestFocus(); 120 121 private: 122 DISALLOW_COPY_AND_ASSIGN(SearchTextfieldView); 123 }; 124 125 // Returns the OS-specific view for the find bar that acts as an intermediary 126 // between us and the TabContentsView. 127 FindBarHost* find_bar_host() const; 128 129 // The controls in the window. 130 SearchTextfieldView* find_text_; 131 views::Label* match_count_text_; 132 FocusForwarderView* focus_forwarder_view_; 133 views::ImageButton* find_previous_button_; 134 views::ImageButton* find_next_button_; 135 views::ImageButton* close_button_; 136 137 DISALLOW_COPY_AND_ASSIGN(FindBarView); 138 }; 139 140 #endif // CHROME_BROWSER_UI_VIEWS_FIND_BAR_VIEW_H_ 141