improved SC.TemplateView

gistfile1.js

SC.mixin(SC.TemplateView.prototype,
    /** @scope SC.TemplateView.prototype */{
   
    templateNameDidChange: function() {
        SC.Logger.debug("Template name was set to " + this.get('templateName'));
        this.rerender();
    }.observes('template'),
    
    /**
      Called when the template property associated with this view changes.
      
      We destroy all registered children, then render the view again and insert
      it into DOM.
    */
    rerender: function() {
        var idx, len, childViews, childView;
        
        childViews = this.get('childViews');
        len = childViews.get('length');
        for (idx = len-1; idx >= 0; idx--) {
            childView = childViews[idx];
            childView.$().remove();
            childView.removeFromParent();
            childView.destroy();
        }
        
        var context = this.renderContext(this.get('tagName'));
        var elem;
        this.renderToContext(context);
        
        elem = context.element();
        this.$().replaceWith(elem);
        this.set('layer', elem);
        this._notifyDidCreateLayer();
    }
});