In below example it has two buttons "Add" and "ClearAll".
`http://jsfiddle.net/naveencgr/L3orucjm/3/`
"Add" button is inside the template which is loaded by backbone on view render and Clear All button is loaded normally as in html.
I had events for both the buttons in view, but click event on normally loaded button is not working . Why?
i have seen this question asked in backbone github forum. I thibk it is designed this way. each backbone view events only involved with items inside the view.
in order to use the outside event you either put thie inner view into theoutter view or simple use jquery event for it. basically backbone authors believe this is more elegant and secure and this will not be changed at least for now.
Related
Angular Strap V2's modal seems to have lost some functionality of V1, and I'm struggling to work out how to achieve what was fairly straightforward with V1 (using angular-strap's $modal service).
The documentation only shows an example where the modal is attached to a DOM element like a button and seems to be automatically wired to the click event. However I want to use other events eg SwipeLeft is a common convention for deleting something, but I'd like to pop up an "Are you sure?" modal prompt for this action. Is this possible?
Is there any way to use the V2 modal with any event other than the click event?
Looking at the source code, it looks like you can bind your own events, or use the default click event.
It should work if you add a data-trigger='myEvent' to your markup.
https://github.com/mgcrea/angular-strap/blob/master/src/modal/modal.js#L279
Need to disable input buttons for items within a Marionette collection view.
Normally I'd just do:
TheView.$el.find('input').prop('disabled', true);
That should disabled all input elements within the view.
The problem I am having is that other parts of the application are updating that view, as a result anything new that comes into the view is not disabled.
What is a good pattern for dealing with this situation?
INHO its not very good to work with ItemView elements from collection view - its better to use custom event or move disable logick to item view.
In case you have other modules updating the view - if i were you i would move disable term in ItemView template - in this case any update will check this term and render input correctlly.
I have a List view and a Detail view.
In list view, I have set up the jquery infinite-scroll plugin.
When a user clicks an item, I render the detail view. The problem is when the user hits bottom of the page, the infinite-scroll callback is fired.
I tried calling $.infinitescroll('pause') but it won't stop the fetch.
Should I completetly destroy the list view before rendering the detail view?
If so, how can I completely destory it? (I tried https://stackoverflow.com/a/11534056/433570 but didn't stop the infinite-scroll callback)
My code resembles https://github.com/joshbohde/django-backbone-example in a big picture
Have you tried doing event.stopPropagation on the scroll event inside the Detail view?
I have a view where i have 3 links(routers which have methods triggering a View bound event).
Normally based on the link i click i reduce from the main collection a subset and render it in another VIEW.
But suppose i have clicked on a link say '....#/remaining' and then i click again on the same link, the event bound is not triggered.
But when i click on any other link and click back on the desired link, everything works!
Is this a Backbone feature/defect, if so what are the alternatives to work around this?
Thanks in Advance.
I think this is because you're doing the reduce in the Router. When you're already on #remaining, your route handler won't execute because there's no route change at all.
Instead of that, you could use a View UI event on the link to manipulate the collection, so it will always be called no matter if you're already on that route or not.
You could also use events as a communication method between your app's components: your data, your views, and so on.
Hope it helps, I didn't put any code because you didn't either. :)
I'm pretty new to Backbone and Marionette and am having a tough time getting my views to communicate.
I've got a composite view that displays a list of items. To add a new item to the list, I have a popup modal that opens in a new item view that is separate from the composite view.
I'm not sure that this is the best way to do this, but in the modal, I created a new instance of the collection with all of the items and added the new item to that collection. This new item shows up in the original composite view, but only after I refresh the page.
I can't seem to figure out how to get the composite view to listen for the add event and render the new model after it is added.
Am I on the right track here? If not, what should I be doing to add to a collection from a modal?
I think I got this figured out. Instead of creating a new collection in the modal view, I passed in the collection from the composite view as a parameter when I created the modal view. Now, when I add a new model in the modal, the 'add' event is automatically triggered on both versions of the collection and the view automatically renders the new model. No need to bind any extra events like I was thinking.
Your solution will work, but means your views are pretty tightly coupled. You might want to look into using events instead (see How do I send a model that was clicked on within a ItemView to another ItemView that is on the same page?)
How your functionality would work with events:
Within the modal, you enter the data for the model to create
When you press the "save" button,
you validate and save the model var myNewModel = ...
you trigger an event: MyApp.MySubApp.trigger("item:add", myNewModel)
In the controllerfor the list view, you listen to that event, and add the new model to the collection.
The handler code in your controller would look something like:
MyApp.MySubApp.on("item:add", function(model){
this.myCollection.add(model);
});
If you'd like to learn more about using events, check out 2 Marionette tutorials I wrote:
http://davidsulc.com/blog/2012/04/15/a-simple-backbone-marionette-tutorial/
http://davidsulc.com/blog/2012/05/06/tutorial-a-full-backbone-marionette-application-part-1/
Both use events to communicate information within the apps.
In addition, basic events are also explained here: http://samples.leanpub.com/marionette-gentle-introduction-sample.pdf