Utilizzando bootstrap-modale vista Backbone.js
-
26-10-2019 - |
Domanda
Sto tentando di creare un Backbone.js vista basata su un Twitter bootstrap-modal, che si avvale della delega automatica degli eventi di Backbone tramite l'attributo events
della vista.
Purtroppo, bootstrap-modal sembra rompere delegazione evento di Backbone come si clona il codice HTML vista prima di visualizzare il modal:
that.$element
.appendTo(document.body)
.show()
La mia opinione:
App.Views.ProjectsNav ||= {}
class App.Views.ProjectsNav.NewProjectView extends Backbone.View
events: {
'click .save': 'save',
'shown': 'shown'
}
save: (e) ->
...
false
shown: () ->
App.Helpers.Forms.setFocus($(@el), true)
false
render: () ->
$(@el).html(ich.nav_edit_project_template(@model.toJSON()))
@$('.modal').modal({'show': true, 'keyboard': true, 'backdrop': true})
@
Il corrispondente (baffi) HTML template:
<div class="modal hide" style="display: none; ">
<div class="modal-header">
<a href="#" class="close">×</a>
<h3>New Project</h3>
</div>
<div class="modal-body form-stacked">
<label for="name">Name</label> <input type="text" name="name" value="{{name}}"/><input type="hidden" name="lock_version" value="{{lock_version}}"/>
</div>
<div class="modal-footer">
<a href="javascript:void(0)" class="save btn primary">Create</a>
<a href="javascript:void(0)" class="cancel btn secondary">Cancel</a>
</div>
</div>
Né save
né shown
vengono chiamati quando i rispettivi eventi vengono attivati.
Tutte le idee?
Soluzione
Allright, so the solution is was rather simple:
App.Views.ProjectsNav ||= {}
class App.Views.ProjectsNav.NewProjectView extends Backbone.View
tagName: 'div'
events: {
'click .save': 'save',
'click .cancel': 'hide',
'hidden': 'hidden',
'shown': 'shown'
}
initialize: (options) ->
super(options)
@collection = options.collection
hide: () ->
@el.modal(true).hide()
false
save: (e) ->
...
@model.save(attrs, {
success: (project) =>
@model = project
@collection.add(@model)
@hide()
error: (project) =>
alert('Something went wrong: ' + project)
}
)
false
render: () ->
@el = ich.nav_edit_project_template(@model.toJSON()).modal('keyboard': true, 'backdrop': true)
@delegateEvents()
@el.modal('show': true)
@
hidden: () ->
@remove()
false
shown: () ->
App.Helpers.Forms.setFocus($(@el), true)
false
Summing things up, the key is to split showing the modal into two steps giving the possibility to assign @el
and invoke @delegateEvents()
afterwards before making it visible. @el.modal(true)
can be used to get access to the object controlling the modal, e.g., to programmatically hide it.