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+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_VIEWS_CONTROLS_LINK_H_
+#define CHROME_VIEWS_CONTROLS_LINK_H_
+
+#include "chrome/views/controls/label.h"
+
+namespace views {
+
+class Link;
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// LinkController defines the method that should be implemented to
+// receive a notification when a link is clicked
+//
+////////////////////////////////////////////////////////////////////////////////
+class LinkController {
+ public:
+ virtual void LinkActivated(Link* source, int event_flags) = 0;
+};
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// Link class
+//
+// A Link is a label subclass that looks like an HTML link. It has a
+// controller which is notified when a click occurs.
+//
+////////////////////////////////////////////////////////////////////////////////
+class Link : public Label {
+ public:
+ static const char Link::kViewClassName[];
+
+ Link();
+ Link(const std::wstring& title);
+ virtual ~Link();
+
+ void SetController(LinkController* controller);
+ const LinkController* GetController();
+
+ // Overridden from View:
+ virtual bool OnMousePressed(const MouseEvent& event);
+ virtual bool OnMouseDragged(const MouseEvent& event);
+ virtual void OnMouseReleased(const MouseEvent& event,
+ bool canceled);
+ virtual bool OnKeyPressed(const KeyEvent& e);
+ virtual bool OverrideAccelerator(const Accelerator& accelerator);
+
+ virtual void SetFont(const ChromeFont& font);
+
+ // Set whether the link is enabled.
+ virtual void SetEnabled(bool f);
+
+ virtual HCURSOR GetCursorForPoint(Event::EventType event_type, int x, int y);
+
+ virtual std::string GetClassName() const;
+
+ void SetHighlightedColor(const SkColor& color);
+ void SetDisabledColor(const SkColor& color);
+ void SetNormalColor(const SkColor& color);
+
+ private:
+
+ // A highlighted link is clicked.
+ void SetHighlighted(bool f);
+
+ // Make sure the label style matched the current state.
+ void ValidateStyle();
+
+ void Init();
+
+ LinkController* controller_;
+
+ // Whether the link is currently highlighted.
+ bool highlighted_;
+
+ // The color when the link is highlighted.
+ SkColor highlighted_color_;
+
+ // The color when the link is disabled.
+ SkColor disabled_color_;
+
+ // The color when the link is neither highlighted nor disabled.
+ SkColor normal_color_;
+
+ DISALLOW_COPY_AND_ASSIGN(Link);
+};
+
+} // namespace views
+
+#endif // CHROME_VIEWS_CONTROLS_LINK_H_