How to listen the components change in a component.
I couldn't get this to work either. Error reading components() when setting the listenTo. The tag is empty (no contents inside) on init, so this makes sense. never mind... i was doing this in the init of the model instead of the view. this worked after I put it in the correct init :)
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init() { this.listenTo(this.model,'change:components', this.handleComponentsChange); },
I develop a component, I try to listen the child components change, then I add above code to view init, but the function doesn't fired when add/remove component.
how I can listen the components change in a component view?
thanks
Answers (4)
I couldn't get this to work either. Error reading components() when setting the listenTo. The tag is empty (no contents inside) on init, so this makes sense. never mind... i was doing this in the init of the model instead of the view. this worked after I put it in the correct init :)
The components collection doesn't change, that's why there's no event triggered.
The storage backend is a Backbone collection, see here. You have to listen to its events, specifically add and remove.
As already mentioned by Andreas, you have to add a listener to the collection.
init() {
const children = this.model.components();
this.listenTo(children, 'add remove', this.handleComponentsChange);
},
Thanks for reporting this, @jcsofts. Great question about how to listen the components change in a component.. The recommended approach with Components is to use the event-driven API. Start here: Check the GrapesJS documentation for your specific module Look for the on() event listener method Most...
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