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Eclipse Platform
Release 3.5

org.eclipse.ui.views.framelist
Class FrameList

java.lang.Object
  extended by 

org.eclipse.core.commands.common.EventManager
      extended by 
org.eclipse.ui.views.framelist.FrameList

public class FrameList
extends EventManager

Supports a web-browser style of navigation by maintaining a list of frames. Each frame holds a snapshot of a view at some point in time.

The frame list obtains a snapshot of the current frame from a frame source on creation, and whenever switching to a different frame.

A property change notification is sent whenever the current page changes.


Field Summary
static  String P_CURRENT_FRAME
          Property name constant for the current frame.
 
Constructor Summary
FrameList ( IFrameSource source)
          Creates a new frame list with the given source.
 
Method Summary
 void addPropertyChangeListener ( IPropertyChangeListener listener)
          Adds a property change listener.
 void back ()
          Moves the frame pointer back by one.
protected  void firePropertyChange ( PropertyChangeEvent event)
          Notifies any property change listeners that a property has changed.
 void forward ()
          Moves the frame pointer forward by one.
  Frame getCurrentFrame ()
          Returns the current frame.
 int getCurrentIndex ()
          Returns the index of the current frame.
  Frame getFrame (int index)
          Returns the frame at the given index, or null if the index is ≤ 0 or ≥ size().
  IFrameSource getSource ()
          Returns the frame source.
 void gotoFrame ( Frame frame)
          Adds the given frame after the current frame, and advances the pointer to the new frame.
 void removePropertyChangeListener ( IPropertyChangeListener listener)
          Removes a property change listener.
 void setCurrentIndex (int index)
          Sets the current frame to the frame with the given index.
 int size ()
          Returns the number of frames in the frame list.
 void updateCurrentFrame ()
          Replaces the current frame in this list with the current frame from the frame source.
 
Methods inherited from class org.eclipse.core.commands.common. EventManager
addListenerObject, clearListeners, getListeners, isListenerAttached, removeListenerObject
 
Methods inherited from class java.lang. Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

P_CURRENT_FRAME

public static final 
String P_CURRENT_FRAME
Property name constant for the current frame.

See Also:
Constant Field Values
Constructor Detail

FrameList

public FrameList(
IFrameSource source)
Creates a new frame list with the given source.

Parameters:
source - the frame source
Method Detail

addPropertyChangeListener

public void addPropertyChangeListener(
IPropertyChangeListener listener)
Adds a property change listener. Has no effect if an identical listener is already registered.

Parameters:
listener - a property change listener

back

public void back()
Moves the frame pointer back by one. Has no effect if there is no frame before the current one. Fires a P_CURRENT_FRAME property change event.


firePropertyChange

protected void firePropertyChange(
PropertyChangeEvent event)
Notifies any property change listeners that a property has changed. Only listeners registered at the time this method is called are notified.

Parameters:
event - the property change event
See Also:
IPropertyChangeListener.propertyChange(org.eclipse.jface.util.PropertyChangeEvent)

forward

public void forward()
Moves the frame pointer forward by one. Has no effect if there is no frame after the current one. Fires a P_CURRENT_FRAME property change event.


getCurrentFrame

public 
Frame getCurrentFrame()
Returns the current frame. Returns null if there is no current frame.

Returns:
the current frame, or null

getCurrentIndex

public int getCurrentIndex()
Returns the index of the current frame.

Returns:
the index of the current frame

getFrame

public 
Frame getFrame(int index)
Returns the frame at the given index, or null if the index is ≤ 0 or ≥ size().

Parameters:
index - the index of the requested frame
Returns:
the frame at the given index or null

getSource

public 
IFrameSource getSource()
Returns the frame source.


gotoFrame

public void gotoFrame(
Frame frame)
Adds the given frame after the current frame, and advances the pointer to the new frame. Before doing so, updates the current frame, and removes any frames following the current frame. Fires a P_CURRENT_FRAME property change event.

Parameters:
frame - the frame to add

removePropertyChangeListener

public void removePropertyChangeListener(
IPropertyChangeListener listener)
Removes a property change listener. Has no effect if an identical listener is not registered.

Parameters:
listener - a property change listener

setCurrentIndex

public void setCurrentIndex(int index)
Sets the current frame to the frame with the given index. Fires a P_CURRENT_FRAME property change event if the current frame changes.


size

public int size()
Returns the number of frames in the frame list.


updateCurrentFrame

public void updateCurrentFrame()
Replaces the current frame in this list with the current frame from the frame source. No event is fired.


Eclipse Platform
Release 3.5

Guidelines for using Eclipse APIs.

Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.


 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire