Widget to turn on/off layers? (No, not the Layerlist.)
Robert Scheitlin, GISP, 3 weeks on, and I'm finally getting back to this. I read over your instructions up there, and I think I hear what you're saying. It's just still seems too much at once for my first round of widgetry.
So instead, I'm starting with this for widget.html and using dijit/form/Select
<div>
<select name="LayerSelector" data-dojo-type="dijit/form/Select">
<option value="First Layer">First Layer</option>
<option value="Second Layer">Second Layer</option>
</select>
</div>That gives me this:
Great! Then I used the Demo widget as template, added the Mixin's for the dojo dropdown
define(['dojo/_base/declare',
'jimu/BaseWidget',
'dijit/_WidgetsInTemplateMixin'
],
function(declare,
BaseWidget,
_WidgetsInTemplateMixin
) {
return declare([BaseWidget,_WidgetsInTemplateMixin], {
baseClass: 'jimu-widget-layerselector',
[...]I also kept the following life cycle methods - bare, with only console logging:
postCreate: function() {
this.inherited(arguments);
console.log('postCreate');
},
startup: function() {
this.inherited(arguments);
console.log('startup');
},
onOpen: function(){
console.log('onOpen');
},
onClose: function(){
console.log('onClose');
}Then I added an event handler (merely to log the event), based on this other thread where you chimed in.
cbChangedHandler: function (who, property, oldValue, {
console.info(who, property, oldValue, newValue);
}Now, how do I rig this up with a event listener? Again, I found the following snippet in your other example:
this.LayerSelector.watch('displayedValue', lang.hitch(this, this.cbChangedHandler, "LayerSelector"));But where does it need to live? Am I generally still on track to widget enlightenment or lost in the woods?
