ExtJS 4.2.1 XTemplate and subtemplates (statics)

Question

I got a custom Ext.Component with a view XTemplates. I do need some of theese Templates outside of the view in my controller too.

Is it possible to refer to static members in functions of a XTemplate. Or is there another much better way???

something like this:

Ext.define('app.view.ApplicationHeader', {
    extend: 'Ext.Component',
    name: 'app-header',
    xtype: 'app-header',

    height: 67,
    margin: 0,

    statics: {
        mainIconTpl: new Ext.XTemplate('someTemplate'),

        navigationItemsTpl: new Ext.XTemplate( 'anotherTemplate'),

        userInfoTpl: new Ext.XTemplate('userTemplate')
    },

    html: new Ext.XTemplate('... {[ this.renderMainIcons() ]} {[ this.renderUserInfo() ]} ...',
            '... {[ this.renderNavigationBarItems() ]} ...',
            {
                me: this,
                renderMainIcons: function () {
                    return view.static.mainIconTpl.apply(MR.Sitemap.Items);
                },
                renderUserInfo: function () {
                    return view.static.userInfoTpl.apply();
                },
                renderNavigationBarItems: function () {
                    return view.static.navigationItemsTpl.apply();
                }
            }).apply()   
});

i also dont know how i could apply subtemplates which are members of the view. I declared them global right know which i really dont like to do.

please!

Answer 1

Your code is not working because the apply method of the main template is called before the class definition (i.e. the define method) is even called.

You can create your static template that uses the other static members of the class in the post-create function (see the last param of the define method).

Then in order for the template to be available, I would override the initComponent method and set the html property there.

Ext.define('app.view.ApplicationHeader', {
    extend: 'Ext.Component',
    name: 'app-header',
    xtype: 'app-header',

    height: 67,
    margin: 0,

    statics: {
        mainIconTpl: new Ext.XTemplate('someTemplate'),
        navigationItemsTpl: new Ext.XTemplate('anotherTemplate'),
        userInfoTpl: new Ext.XTemplate('userTemplate')
    },

    initComponent: function() {

        // Here, your statics are available, and you're in the scope of your
        // class *instance*
        this.html = this.self.viewTemplate.apply();

        this.callParent(arguments);
    }

}, function() {

    // In the post create function, this is the class constructor
    // (i.e. app.view.ApplicationHeader)
    var cls = this;

    // In fact, you could also create your sub templates here if you prefer
    // e.g.
    // cls.useInfoTpl = new Ext.XTemplate('userTemplate')

    // So, viewTemplate will be a static property of the class
    cls.viewTemplate = new Ext.XTemplate('... {[ this.renderMainIcons() ]} {[ this.renderUserInfo() ]} ...',
        '... {[ this.renderNavigationBarItems() ]} ...', {
        renderMainIcons: function() {
            return cls.mainIconTpl.apply();
        },
        renderUserInfo: function() {
            return cls.userInfoTpl.apply();
        },
        renderNavigationBarItems: function() {
            return cls.navigationItemsTpl.apply();
        }
    });

});

Answer 2

According to the link, you should be able to put this directly in your XTemplate. No need for statics

{[ MyApp.tpls.someOtherTpl.apply(values) ]}

Multiple templates in Nested List

You could also try putting all of these XTemplates in initComponent instead since you're not injecting any values for XTemplate after initial component render. The apply() will just return you an HTML fragment which should be able to be appended anywhere within the XTemplate.

If you're trying to put logical or conditional tpl operators i.e. <tpl for="parent.someVar">...</tpl> in any of the sub XTemplates, then that's another problem so it all depends on what you're trying to accomplish.

Ext.define('app.view.ApplicationHeader', {
    extend: 'Ext.Component',
    name: 'app-header',
    xtype: 'app-header',

    height: 67,
    margin: 0,

    initComponent: function() {
        var me = this,
        me.mainIconTpl = new Ext.XTemplate('someTemplate'),
        me.navigationItemsTpl = new Ext.XTemplate( 'anotherTemplate'),
        me.userInfoTpl = new Ext.XTemplate('userTemplate');

        me.tpl = new Ext.XTemplate(
            '...', me.mainIconTpl.apply(MR.Sitemap.Items), 
            '...', me.navigationItemsTpl.apply(someValues), 
            '...', me.userinfoTpl.apply(someValues), 
            '...'
        );

        Ext.apply(me, {
             html: me.tpl
        });

        me.callParent();
    }
});