I am trying to dynamically change interaction behaviour. It seems to have hit a wall with unregistering the events anyone that can help me with this?
This code:
map.un("click",ol.interaction.DragBox.handleDownEvent_,ol.interaction.DragBox);
gets a undefined error
You cannot manipulate the internals of the library this way. What you can do is use setActive(false) on the interaction.
http://openlayers.org/en/v3.4.0/apidoc/ol.interaction.DragBox.html?unstable=true#setActive
Related
I'm trying to get my head around Avalonia in general, and the Reactive UI integration in particular. From googling around, I understand that Avalonia pulled away the Avalonia support in ReactiveUI, and tries to integrate ReactiveUI into Avalonia itself, to support a sometimes unstable Avalonia API.
I'm implementing a flow where a double tap on a DataGrid row should open a details windows, which I can do by adding a handler for the DoubleTapped event in the code behind. However, I was wondering if I could do this in a Reactive UI way, in a WhenActivated() implementation, by observing the DoubleTapped event.
In the ReactiveUI documentation, I see that there is a Pharmacist integration, which generates the observables for these events. However, when I fetch a reference to the DataGrid in the code behind, and try to hook into the DoubleTapped via
myDataGrid.Events(). ..., I don't get to see any events. Does this imply that there's no such support in Avalonia at this time?
Finally, while I'm at it, if I forget about the Reactive UI support, and use a straight-forward event handler, I need to do some stuff to detect whether it was a row that was double tapped, or something else (such as the header). I have to do this, because there's no EventSetter implementation in Avalonia as I understand it.
Somebody who knows if Avalonia will support this in the future?
Edit: in the end I used ReactiveUI somewhat similar to
TreeView.GetObservable(DoubleTappedEvent)
.Subscribe(async x =>
{
var selectedItem = TreeView.SelectedItem;
if (selectedItem is TreeNodeViewModel treeNodeViewModel)
{
await ViewModel!.ActivateResource(treeNodeViewModel);
}
}).DisposeWith(d);
An attached behaviour can also help to bind events to perform logic. There is a sample that looks like it could work provided the DoubleTappedEvent is being fired.
Avalonia Docs - Creating and binding Attached Properties
The dev tools should help show the event your are looking for tunnel and bubble though the DataGrid?
Pharmacist does not support Avalonia. They are working on ReactiveMarbles.ObservableEvents, which as of right now, doesn't work on generic classes, but they're working on fixing it.
I currently have a project in Xamarin and I am using MvvmCross. I have an MvxActionBarActivity that hosts MvxFragments. Now when I want to close the entire MvxActionBarActivity, the event begins in the Fragment and I want to tell the MvxActionBarActivity to close. Calling Close(this) in the fragment viewmodel is not working.
I have considered using MvxMessegner to send message from one viewmodel to the other but due to the relationship of a fragment and an activity I am wondering if there is a better way to do this.
Any help would be much appreciated.
Thank you!
When you want to close an Activity you need to call Finish(). This will close that activity and go back to that what is on the backstack.
If you want to call that from your viewmodel you should use a custom presenter: http://gregshackles.com/presenters-in-mvvmcross-navigating-android-with-fragments/
I'm trying to modify the behaviour of the NewIssuesEmailTemplate in SonarQube 4.0. I want to put richer information into the generated emails. It looks as if everything I need is put in the Notification by IssueNotifications.
What I want to know is if it's possible to override the fact that NewIssuesEmailTemplate is the handler for Notifications of type "new-issues".
I'm going to hazard that this can be done by creating a new plugin that overrides the specific behaviour of CorePlugin, and making sure that this gets loaded first, but I don't really know how to go about it.
Has anyone done anything like this before? I don't seem to be able to find any hints to get me started.
You cannot change the fact that NewIssuesEmailTemplate is the handler for notifications of type "new-issues".
All you can do is to add new channels or dispatchers using the extensions available in the notification API. You can check how this is done by the Core Email plugin.
currently I am trying to register a Doctrine-Eventlistener for every request in my FLOW3-Package. Some research pointed me to the Package.php, but unfortunately the ObjectManager is not available when the boot()-Method is called.
I searched the whole FLOW3-Documentation http://flow3.typo3.org/documentation/guide/partiii/bootstrapping.html without luck
Any hints on which is the right place to do package-wide setup with access to the object manager?
thanks and best regards
Your are bit to early in the bootstrap to get every object, I have a problem, maybe related to yours, you can check my bug report on http://forge.typo3.org/issues/33838
Why do you need a Doctrine Eventlistener, maybe you can use AOP to have this kind of feature ?
I was wondering if there's some sort of system event that gets fired every time a user changes the time in Windows. I know there's a way to enable this in Windows' EventLog, but I was looking for a way to respond to this event programatically (like using the Windows API).
A WM_TIMECHANGE message is sent whenever there is a change in the system time
I'm not sure from your question if you're working in managed or native code. But if you're working in managed code you can use the TimeChanged event on the SystemEvents class.
Microsoft.Win32.SystemEvents.TimeChanged