net.sourceforge.java.feednread.frontend.event.action
Class RemoveTreeElementAction

java.lang.Object
  org.eclipse.core.commands.common.EventManager
      org.eclipse.jface.action.AbstractAction
          org.eclipse.jface.action.Action
              net.sourceforge.java.feednread.frontend.event.action.RemoveTreeElementAction

All Implemented Interfaces:

IAction

public class RemoveTreeElementAction

extends Action

Action to remove an IMutableTreeElement from the NewsfeedFavoritesTree or NewsFeedWatchesTree component .

Author:

Sebastian Machhausen

Field Summary

private MainApplicationWindow

mainWindow The Feed'n Read main window

Fields inherited from class org.eclipse.jface.action.Action

Fields inherited from class org.eclipse.core.commands.common.EventManager

Fields inherited from interface org.eclipse.jface.action.IAction

AS_CHECK_BOX, AS_DROP_DOWN_MENU, AS_PUSH_BUTTON, AS_RADIO_BUTTON, AS_UNSPECIFIED, CHECKED, DESCRIPTION, ENABLED, HANDLED, IMAGE, RESULT, TEXT, TOOL_TIP_TEXT

Constructor Summary

RemoveTreeElementAction(MainApplicationWindow mainWindow)
Creates a new RemoveTreeElementAction instance.

Method Summary

private void	cancelScheduler(Category category) Cancels the JobManager scheduler for the specified Category, i.e. if an update interval for the specified Category is set the corresponding ScheduledJobs of the Favorites in the Category are canceled.
private void	cancelScheduler(Favorite favorite) Cancels the JobManager scheduler for the specified Favorite, i.e. if an update interval for the specified Favorite is set the corresponding ScheduledJob is canceled.
void	run() Executes the action: Gets the currently selected component in the SideBar.

Methods inherited from class org.eclipse.jface.action.Action

convertAccelerator, convertAccelerator, findKeyCode, findKeyString, findModifier, findModifierString, getAccelerator, getActionDefinitionId, getDescription, getDisabledImageDescriptor, getHelpListener, getHoverImageDescriptor, getId, getImageDescriptor, getMenuCreator, getStyle, getText, getToolTipText, isChecked, isEnabled, isHandled, notifyResult, removeAcceleratorText, removeMnemonics, runWithEvent, setAccelerator, setActionDefinitionId, setChecked, setDescription, setDisabledImageDescriptor, setEnabled, setHelpListener, setHoverImageDescriptor, setId, setImageDescriptor, setMenuCreator, setText, setToolTipText

Methods inherited from class org.eclipse.jface.action.AbstractAction

addPropertyChangeListener, firePropertyChange, firePropertyChange, removePropertyChangeListener

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

Methods inherited from interface org.eclipse.jface.action.IAction

addPropertyChangeListener, removePropertyChangeListener

Field Detail

mainWindow

private MainApplicationWindow mainWindow

The Feed'n Read main window

Constructor Detail

RemoveTreeElementAction

public RemoveTreeElementAction(MainApplicationWindow mainWindow)

Creates a new RemoveTreeElementAction instance. This Action is being used if the user removes an IMutableTreeElement from the NewsFeedFavoritesTree or NewsFeedWatchesTree component.
This can either be a Category or a Favorite if the NewsFeedFavoritesTree is selected. If the NewsFeedWatchesTree is selected this can be a WatchFolder or a Watch.

Parameters:

mainWindow - the Feed'n Read main window

Method Detail

run

public void run()

Executes the action:

• Gets the currently selected component in the SideBar. This is either the NewsFeedFavoritesTree or the NewsFeedWatchesTree.
• Gets the currently selected tree element
• If the user configured a security check to precede a removal a RemoveTreeElementDialog is displayed which lets the user confirm the removal.
• If the user disabled the security check or answered yes in a RemoveTreeElementDialog the selected tree element is removed from the NewsFeedFavoritesTree resp. NewsFeedWatchesTree. If the selection points to a Category all sub categories and Favorites contained in this tree element will be removed too. If the selection points to a WatchFolder all sub folders and Watches in this folder will be removed too.

cancelScheduler

private void cancelScheduler(Favorite favorite)

Cancels the JobManager scheduler for the specified Favorite, i.e. if an update interval for the specified Favorite is set the corresponding ScheduledJob is canceled.

Parameters:

favorite - the Favorite to cancel the scheduler for

cancelScheduler

private void cancelScheduler(Category category)

Cancels the JobManager scheduler for the specified Category, i.e. if an update interval for the specified Category is set the corresponding ScheduledJobs of the Favorites in the Category are canceled. This routine works recursively. That means that the potential ScheduledJobs of all Favorites in the specified Category are canceled.

Parameters:

category - the Category to cancel the scheduler for