How to include the icon inside the tooltip message

Questions
1

HEllo, I need to include the download icon inside the tooltip message, I have tried the below code:

ObjectIconView: Ember.ContainerView.extend(childMOMixin, {
                iconDownload: function () {
                              model: 'download'
                },
                mouseEnter: function(e) {
                if(type == 'Text'){
                var textUrl = {content: 'Preview is Not Available, Use '+ this.iconDownload() +'Menu'};
                this.$().tooltip(textUrl);
}
}

In that I have called the iconDownload inside the tooltip. But it’s saying undefined in the output. I’m using Ember 1.4.0 version. Can anybody please provide the suggestion for this. Thanks in advance

2

Cross-posting your question here as well as on StackOverflow is not a nice practice in my opinion.