Utilizzando bootstrap-modale vista Backbone.js

Question

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?

Answer 1

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.