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 UI_VIEWS_CONTROLS_MESSAGE_BOX_VIEW_H_ 6 #define UI_VIEWS_CONTROLS_MESSAGE_BOX_VIEW_H_ 7 8 #include <vector> 9 10 #include "base/strings/string16.h" 11 #include "ui/views/view.h" 12 13 namespace views { 14 15 class Checkbox; 16 class Label; 17 class Link; 18 class LinkListener; 19 class Textfield; 20 21 // This class displays the contents of a message box. It is intended for use 22 // within a constrained window, and has options for a message, prompt, OK 23 // and Cancel buttons. 24 class VIEWS_EXPORT MessageBoxView : public View { 25 public: 26 enum Options { 27 NO_OPTIONS = 0, 28 // For a message from a web page (not from Chrome's UI), such as script 29 // dialog text, each paragraph's directionality is auto-detected using the 30 // directionality of the paragraph's first strong character's. Please refer 31 // to HTML5 spec for details. 32 // http://dev.w3.org/html5/spec/Overview.html#text-rendered-in-native-user-interfaces: 33 // The spec does not say anything about alignment. And we choose to 34 // align all paragraphs according to the direction of the first paragraph. 35 DETECT_DIRECTIONALITY = 1 << 0, 36 HAS_PROMPT_FIELD = 1 << 1, 37 }; 38 39 struct VIEWS_EXPORT InitParams { 40 explicit InitParams(const base::string16& message); 41 ~InitParams(); 42 43 uint16 options; 44 base::string16 message; 45 base::string16 default_prompt; 46 int message_width; 47 int inter_row_vertical_spacing; 48 }; 49 50 explicit MessageBoxView(const InitParams& params); 51 52 virtual ~MessageBoxView(); 53 54 // Returns the text box. 55 views::Textfield* text_box() { return prompt_field_; } 56 57 // Returns user entered data in the prompt field. 58 base::string16 GetInputText(); 59 60 // Returns true if a checkbox is selected, false otherwise. (And false if 61 // the message box has no checkbox.) 62 bool IsCheckBoxSelected(); 63 64 // Adds a checkbox with the specified label to the message box if this is the 65 // first call. Otherwise, it changes the label of the current checkbox. To 66 // start, the message box has no checkbox until this function is called. 67 void SetCheckBoxLabel(const base::string16& label); 68 69 // Sets the state of the check-box. 70 void SetCheckBoxSelected(bool selected); 71 72 // Sets the text and the listener of the link. If |text| is empty, the link 73 // is removed. 74 void SetLink(const base::string16& text, LinkListener* listener); 75 76 // View: 77 virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE; 78 79 protected: 80 // View: 81 virtual void ViewHierarchyChanged( 82 const ViewHierarchyChangedDetails& details) OVERRIDE; 83 // Handles Ctrl-C and writes the message in the system clipboard. 84 virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE; 85 86 private: 87 // Sets up the layout manager and initializes the message labels and prompt 88 // field. This should only be called once, from the constructor. 89 void Init(const InitParams& params); 90 91 // Sets up the layout manager based on currently initialized views. Should be 92 // called when a view is initialized or changed. 93 void ResetLayoutManager(); 94 95 // Message for the message box. 96 std::vector<Label*> message_labels_; 97 98 // Input text field for the message box. 99 Textfield* prompt_field_; 100 101 // Checkbox for the message box. 102 Checkbox* checkbox_; 103 104 // Link displayed at the bottom of the view. 105 Link* link_; 106 107 // Maximum width of the message label. 108 int message_width_; 109 110 // Spacing between rows in the grid layout. 111 int inter_row_vertical_spacing_; 112 113 DISALLOW_COPY_AND_ASSIGN(MessageBoxView); 114 }; 115 116 } // namespace views 117 118 #endif // UI_VIEWS_CONTROLS_MESSAGE_BOX_VIEW_H_ 119
