cartodb/lib/assets/javascripts/deep-insights/widgets/widget-view-factory.js
2020-06-15 10:58:47 +08:00

51 lines
1.3 KiB
JavaScript

var _ = require('underscore');
var WidgetView = require('./widget-view');
var WidgetViewFactory = function (defs) {
this.defs = [];
_.each(defs, function (def) {
this.addType(def);
}, this);
};
WidgetViewFactory.prototype.DEFAULT_CLASS_NAMES = 'CDB-Widget CDB-Widget--light';
WidgetViewFactory.prototype.addType = function (def) {
if (!def.match) {
if (def.type) {
def.match = function (widget) {
return widget.get('type') === this.type;
};
} else {
throw new Error('def.type or def.match must be provided for createContentView to work');
}
}
if (!_.isFunction(def.createContentView)) throw new Error('def.createContentView must be a function');
this.defs.push(def);
};
/**
* @returns {Object, undefined} Returns nothing if there is not matching view for the given model
*/
WidgetViewFactory.prototype.createWidgetView = function (widget) {
var def = _.find(this.defs, function (def) {
return def.match(widget);
});
if (def) {
var attrs = {
className: this.DEFAULT_CLASS_NAMES,
model: widget,
contentView: def.createContentView(widget)
};
return new WidgetView(
_.isFunction(def.customizeWidgetAttrs)
? def.customizeWidgetAttrs(attrs)
: attrs
);
}
};
module.exports = WidgetViewFactory;