[PATCH] Make sure tools menu entries (and actions) are deactivated when no layer

[avarab@…]

1. Start JOSM
2. Press "c" (combine way)

java.lang.NullPointerException
	at org.openstreetmap.josm.actions.CombineWayAction.actionPerformed(CombineWayAction.java:59)
	at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1636)
	at javax.swing.JComponent.processKeyBinding(JComponent.java:2851)
	at javax.swing.KeyboardManager.fireBinding(KeyboardManager.java:267)
	at javax.swing.KeyboardManager.fireKeyboardAction(KeyboardManager.java:216)
	at javax.swing.JComponent.processKeyBindingsForAllComponents(JComponent.java:2928)
	at javax.swing.JComponent.processKeyBindings(JComponent.java:2920)
	at javax.swing.JComponent.processKeyEvent(JComponent.java:2814)
	at java.awt.Component.processEvent(Component.java:6040)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1848)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:704)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:969)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:841)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:668)
	at java.awt.Component.dispatchEventImpl(Component.java:4502)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Window.dispatchEventImpl(Window.java:2475)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

[Gubaer]

fixed in r1817

[Landwirt]

I have to say that this problem affects perhaps all tools - UnGlueAction, MergeNodesAction etc. Just load JOSM and start an action from the Tools menu.

[Gubaer]

fixed in r1820

[Landwirt]

I reopen the ticket once again, because the tools/actions are not immediately activated after a layer has been created or opened. Even after drawing selected objects have to be re-selected to enable the actions.

[anonymous]

Ticket #2948 has been marked as a duplicate of this ticket.

[Landwirt]

I made a patch to update the updateEnabledState function of most actions.

[Landwirt]

Ticket #3038 has been marked as a duplicate of this ticket.

[Gubaer]

The patch mainly replaces

setEnabled(getCurrentDataSet() != null && ! getCurrentDataSet().getSelected().isEmpty()); 

by

setEnabled(getEditLayer() != null); 
	 
if (this.enabled) { 
   setEnabled(getCurrentDataSet() != null && !getCurrentDataSet().getSelected().isEmpty()); 
} 

in actions.

The replacement is logically equivalent with the orignal, though, it looks only more elaborated.

Am I missing something?

[Landwirt]

I believe I mixed up the patches - the this.enabled part shouldn't be there as I replaced all that lines by just the getEditLayer line. Nonetheless both is wrong, and best example why I haven't asked for svn access :-D

But I have another patch for a possible solution. As I couldn't find out why getCurrentDataSet().getSelected() seems to be always empty, I simply extended the updateEnabledState.

[Gubaer]

Nonetheless both is wrong, and best example why I haven't asked for svn access :-D

I won't apply this patch either, at least not entirely.

Most of the stuff you added is redundant. It's already working exactly the way you try to fix it. I'm therefore wondering with what JOSM version you are working. Can you explain again what you try to fix?

The patch for ReverseWayAction.java is ok, though. This OK was forgotten in the last update so your cleanup is welcome.

[Landwirt]

In eclipse I currently have 1826, but you can also try today's josm-latest: draw a way, switch to select mode - though the way is selected the actions in the Tools menu are still disabled. That's because in updateEnableState the result of !getCurrentDataSet().getSelected().isEmpty() is incorrectly "false".

The patch for ReverseWayAction.java is ok

Parts in PasteAction.java should also work - currently Pasting is disabled when nothing is selected.

[Gubaer]

fixed in r1844