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_LINK_H_ 6 #define UI_VIEWS_CONTROLS_LINK_H_ 7 8 #include <string> 9 10 #include "third_party/skia/include/core/SkColor.h" 11 #include "ui/views/controls/label.h" 12 13 namespace views { 14 15 class LinkListener; 16 17 //////////////////////////////////////////////////////////////////////////////// 18 // 19 // Link class 20 // 21 // A Link is a label subclass that looks like an HTML link. It has a 22 // controller which is notified when a click occurs. 23 // 24 //////////////////////////////////////////////////////////////////////////////// 25 class VIEWS_EXPORT Link : public Label { 26 public: 27 Link(); 28 explicit Link(const string16& title); 29 virtual ~Link(); 30 31 static SkColor GetDefaultEnabledColor(); 32 33 const LinkListener* listener() { return listener_; } 34 void set_listener(LinkListener* listener) { listener_ = listener; } 35 36 // Overridden from View: 37 virtual void OnEnabledChanged() OVERRIDE; 38 virtual const char* GetClassName() const OVERRIDE; 39 virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE; 40 virtual bool HitTestRect(const gfx::Rect& rect) const OVERRIDE; 41 virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE; 42 virtual bool OnMouseDragged(const ui::MouseEvent& event) OVERRIDE; 43 virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE; 44 virtual void OnMouseCaptureLost() OVERRIDE; 45 virtual bool OnKeyPressed(const ui::KeyEvent& event) OVERRIDE; 46 virtual bool SkipDefaultKeyEventProcessing( 47 const ui::KeyEvent& event) OVERRIDE; 48 virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE; 49 50 // Overridden from ui::EventHandler: 51 virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE; 52 53 // Overridden from Label: 54 virtual void SetFont(const gfx::Font& font) OVERRIDE; 55 56 virtual void SetEnabledColor(SkColor color) OVERRIDE; 57 void SetPressedColor(SkColor color); 58 void SetUnderline(bool underline); 59 60 static const char kViewClassName[]; 61 62 private: 63 void Init(); 64 65 void SetPressed(bool pressed); 66 67 void RecalculateFont(); 68 69 LinkListener* listener_; 70 71 // Whether the link should be underlined when enabled. 72 bool underline_; 73 74 // Whether the link is currently pressed. 75 bool pressed_; 76 77 // The color when the link is neither pressed nor disabled. 78 SkColor requested_enabled_color_; 79 80 // The color when the link is pressed. 81 SkColor requested_pressed_color_; 82 83 DISALLOW_COPY_AND_ASSIGN(Link); 84 }; 85 86 } // namespace views 87 88 #endif // UI_VIEWS_CONTROLS_LINK_H_ 89
