PlatformSupport


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33  
34  package edu.rice.cs.drjava.platform;
35  
36  import javax.swing.Action  ;
37  import java.net.URL  ;
38  
39  /**
40   * Central interface for all platform-specific code in DrJava.
41   * A default platform-neutral implementation is provided in DefaultPlatform.
42   * @version $Id: PlatformSupport.java 3900 2006-06-29 13:16:38Z rcartwright $
43   * @see edu.rice.cs.drjava.platform.DefaultPlatform
44   */
45  public interface PlatformSupport {
46    
47    /** Returns whether this is a Mac OS X platform. */
48    public boolean isMacPlatform();
49    
50    /** Returns whether this is a Windows platform. */
51    public boolean isWindowsPlatform();
52    
53    /** Returns the current Java specification version. */
54    public String   getJavaSpecVersion();
55    
56    /** Returns true if the classpath's tools.jar is from version 1.3. */
57    public boolean has13ToolsJar();
58    
59    /** Returns true if the classpath's tools.jar is from version 1.4. */
60    public boolean has14ToolsJar();
61    
62    /** Utility method to determine if the current Swing look and feel is the
63     *  platform-specific look and feel for the client platform.
64     *  @return true if current Swing look and feel is the system look and feel
65     */
66    public boolean isUsingSystemLAF();
67    
68    /** Hook for performing general UI setup.  Called before all other UI setup is done. */
69    public void beforeUISetup();
70    
71    /** Hook for performing general UI setup.  Called after all other UI setup is done.
72     *  @param about the Action associated with openning the About dialog
73     *  @param prefs the Action associated with openning the Preferences dialog
74     *  @param quit the Action associated with quitting the DrJava application
75     */
76    public void afterUISetup(Action   about, Action   prefs, Action   quit);
77    
78    /** Utility method for opening a URL in a browser in a platform-specific way.
79     *  The default implementation uses Runtime.exec to execute a command specified
80     *  in Preferences.  Platform implementations should attempt the default method
81     *  first, then try to use a "default browser", if such a thing exists on the
82     *  specific platform.
83     *  @param address the URL to open
84     *  @return true if the URL was successfully handled, false otherwise
85     */
86    public boolean openURL(URL   address);
87  }
88
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