Catch Ctrl+Enter when user typing text in Ext.form

问题:

I'm trying to make ajax request when user press ctrl+enter while is entering text in Ext.form.field.HtmlEditor (xtype:'htmleditor'), but I don't know how to do it.
I'got button next to the 'htmleditor' which can send the value of the 'htmleditor' but I'd like to add keyboard shortcut for that operation with ctrl+enter.
Will appreciate some help.

EDIT: It need to be made with ExtJS4 - somehow I must add something like 'keypress' listener to my htmleditor object...
Here is the code..

this.htmleditor = this.addComment.add({
    region:'center',
    xtype:'htmleditor',
    margin:'0 0 0 0',
    enableSourceEdit:false,
    height:200
});

回答1:

You cannot listen for events in default htmleditor. So you need use updated version of it.

This code can help you (it is for extjs 3, so maybe you need change it for 4 version):

Cyber.ui.HtmlEditor = Ext.extend(Ext.form.HtmlEditor, {
        frame : true,
        initComponent : function() {
            Cyber.ui.HtmlEditor.superclass.initComponent.call(this);
            this.addEvents('submit');
        },
        initEditor : function() {
           Cyber.ui.HtmlEditor.superclass.initEditor.call(this);
            if (Ext.isGecko) {
                Ext.EventManager.on(this.doc, 'keypress', this.fireSubmit,
                        this);
            }
            if (Ext.isIE || Ext.isWebKit || Ext.isOpera) {
                Ext.EventManager.on(this.doc, 'keydown', this.fireSubmit,
                        this);
            }
        },
        fireSubmit : function(e) {
            if (e.ctrlKey && Ext.EventObject.ENTER == e.getKey()) {
                // Do what you need here
            }
        }
});

Ext.reg('customeditor', Cyber.ui.HtmlEditor);

And in your form:

this.htmleditor = this.addComment.add({
    region:'center',
    xtype:'customeditor',
    margin:'0 0 0 0',
    enableSourceEdit:false,
    height:200
});

---

I played a lot with Extjs 4 and found the way (you need just include this code before you'll use htmleditor):

Ext.form.HtmlEditor.override({
    frame : true,
    initComponent: function() {
        this.callOverridden();
        this.addEvents('submit');
    },

    initEditor : function() {
        this.callOverridden();

        var me = this;
        var doc = me.getDoc();

        if (Ext.isGecko) {
            Ext.EventManager.on(doc, 'keypress', me.fireSubmit, me);
        }

        if (Ext.isIE || Ext.isWebKit || Ext.isOpera) {
            Ext.EventManager.on(doc, 'keydown', me.fireSubmit, me);
        }
    },

    fireSubmit : function(e) {
        if (e.ctrlKey && Ext.EventObject.ENTER == e.getKey()) {
            // Do what you need here
            alert('yes!');
        }
    }
});

回答2:

Is this what you're after (was already on stack :P)? Ctrl+Enter jQuery in TEXTAREA:

$('#textareaId').keydown(function (e) {
e = e || event; // for compatibility with IE (i belive)
  if (e.ctrlKey && e.keyCode == 13) {
    // Ctrl-Enter pressed
  }
});