所以我有一个奇怪的问题,我的主干事件被触发了,即使它们还没有被触发。本质上,我正在制作一个笔记编辑器应用程序。在注释本身中,用户可以按 cmd + b 来加粗文本,或任何其他法线。然后触发一个事件,该事件冒泡到应该订阅该事件并调用正确方法的 AppController。
这是调用触发器的注释的视图:
class MeetingNote.View.NoteView extends Backbone.View
adminTemplate: _.template($('#AdminNoteTemplate').html())
normalTemplate: _.template($('#NormalNoteTemplate').html())
className: 'note'
events:
'keydown' : 'handleKeyDownsForStyling'
# all of the normal backbone stuff.... init/render/blah
handleKeyDownsForStyling: (e) ->
if @admin == true
if e.metaKey
switch e.which
when 66 then @trigger "boldSelection"
when 73 then @trigger "italicizeSelection"
when 85 then @trigger "underlineSelection"
然后这是我的 AppController,它在 NoteView 实例化时绑定到事件
class MeetingNote.View.AppController extends Backbone.View
template: _.template($('#MeetingNoteAppTemplate').html())
className: 'MeetingNoteApp'
initialize: (options) ->
@admin = options.privilege
@render()
render: ->
@$el.html(@template())
$('#container').append(@$el)
@initializeApp()
initializeApp: ->
@adminTools = new MeetingNote.View.AdminTools if @admin == true
notes = new MeetingNote.Collection.NotesCollection()
notes.fetch {
success: (collection) =>
_.each collection.models, (model) =>
note = new MeetingNote.View.NoteView {model: model, privilege: @admin}
@bindNoteEvents note if @admin == true
}
bindNoteEvents: (note) ->
note.on "boldSelection", @adminTools.boldSelection(), note
note.on "italicizeSelection", @adminTools.italicizeSelection(), note
note.on "underlineSelection", @adminTools.underlineSelection(), note
最后,这里是 @adminTools.boldSelection() 函数
boldSelection: ->
console.log( "yo" )
出于某种原因,在页面加载时,即使我从未通过在注释视图中按 cmd + b 来发送触发器,也会触发 console.log。任何人都知道为什么 Backbone.Event 会自动触发?