Ace editor trigger event using javascript

问题

Is there anything like

editor.getSession.trigger('change')

the reason I want this is because the editor goes in and out of new, so when It comes back into view I need it to do its normal 'change' thing, but I dont want to wait for user input?

Currently I have

editor.getSession().on('change', function(){
    editorChangeHandler()
})

and I just recall

        editorChangeHandler()

when I need to, but editor.getSession.trigger('change') is much nicer.

回答1:

editor.session._emit('change') would trigger editorChangeHandler, but fake change event will break undo history.

回答2:

the reason I want this is because the editor goes in and out of new, so when It comes back into view I need it to do its normal 'change' thing, but I dont want to wait for user input?

You may try an alternative solution to the case using underscore.js.

Change:

editor.getSession().on('change', function(){
    editorChangeHandler()
})

to:

editor.getSession().on('change', _.debounce(function() {
    editorChangeHandler()
}, 100))

when you trigger a change it like:

editor.setValue('my change..');

then it will behave like your wish:

editor.getSession.trigger('change')

来源：https://stackoverflow.com/questions/16020105/ace-editor-trigger-event-using-javascript