所以这个可能有点牵扯。完整的应用程序,如果你真的很难过,并希望自己运行它,on github。
(如果你这样做,你需要登录,用户名和密码在API/tasks/populate.rake
...只是不要告诉其他人,k?)
我正在使用Ember State Services来跟踪编辑器组件的isClean
状态(使用hallo.js)。
下面是一些示例代码,包含场景,以及我遇到的问题:
当编辑器中的内容发生更改时,hallo.js将触发hallomodified
事件。在组件的didInsertElement
挂钩中,我附加了一个jquery事件监听器,它将isClean
属性设置为false,并将其记录到控制台,以便我们检查它是否真正有效:
JfEdit = Ember.Component.extend
editorService: Ember.inject.service('jf-edit')
editorState: Ember.computed('page', ->
@editorService.stateFor(@page) # page is passed in to the component
# in the route template
).readOnly()
# ...
didInsertElement: ->
self = @
@$().on("hallomodified", ->
console.log "modified"
self.get('editorState.isClean') = false
console.dir self.get('editorState') # -> Logs: Class -> __ember123456789:null,
# isClean: false
# in the console (but I have to click on
# isClean to show the value)
).hallo(
# ...
)
`export default JfEdit`
# Full code is at https://github.com/clov3rly/JoyFarm/blob/master/app/app/components/jf-edit.em
# (written in emberscript, which is an adaptation of coffeescript)
这似乎可以在控制台中使用editorState.isClean = false
。
那么,当我们尝试从页面转移时,我们检查编辑器状态,以提示用户保存。
NewPostRoute = Ember.Route.extend
model: ->
@*.store.createRecord 'post',
title: "New Post"
content: "Content here."
editorService: Ember.inject.service('jf-edit')
editorState: Ember.computed('model', ->
@editorService.stateFor(@model)
).readOnly().volatile()
actions:
willTransition: (transition) ->
model = @modelFor('posts/new')
console.log "editorState:", @get('editorState.isClean')
# -> logs true, after the log in
# the file above logged false.
console.dir @get('editorState') # -> Logs: Class ->
# __ember123456789:null
# (the same number as above)
# but the isClean property is
# not in the log statement
# ...
unless @get('editorState.isClean')
confirm("Do you want to discard your changes?") || transition.abort()
# Full code at https://github.com/clov3rly/JoyFarm/blob/master/app/app/routes/posts/new.em
现在,editorState.isClean返回false(并且在记录对象本身时不显示)。但是,对象的第一个属性具有相同的键,我假设它是某种类型的余烬ID?
模板如下所示:
{{{jf-edit page=model save="save" class="blog editor"}}}
因此,page
文件中的component/jf-edit
应与model
文件中的routes/new
对象相同。
服务/状态文件非常简单,如果你想看到它们,你可以在this gist(或在repo本身)中找到它们。
答案 0 :(得分:1)
如果我将editorState存储在控制器上,并在路径willTransition操作处理程序中查找this.controller.editorState
,则此问题就会消失。
感谢Grapho并锁定IRC;)