Hi Stefano,
I can provide you some information:
* a widget is based on $:/core/modules/widgets/widget.js ... all the
methods defined there are also accessible in your widget (and work with
values based on your widget, like the refreshSelf method, that works with
your parentDomNode defined on top with this.parentDomNode = parent), or you
provide your own which will be used instead of the one in widget.js
* for your configuration panel this will be useful so that the widget
refreshes its configuration whenever one of its configuration tiddlers
changes:
YourWidget.prototype.refresh = function(changedTiddlers) {
//here, decide what to do, how to refresh when a configuration tiddler
changes
if(changedTiddlers["$:/plugins/myname/myplugin/config/myconfig"] ||
changedTiddlers["$:/plugins/myname/myplugin/config/myotherconfig"]) {
//maybe when these tiddler change the widget needs a full refresh - depends
on how your widget works. note that the refreshSelf method depends on
this.parentDomNode being accessible, that's why it's saved at the top of
the render method
this.refreshSelf();
return true;
} else if(changedTiddlers["
$:/plugins/myname/myplugin/config/myotherotherconfig"]) {
//maybe this config needs just to update a configuration value ...
this.configvalue = this.widget.wiki.getTiddlerText("
$:/plugins/myname/myplugin/config/myotherotherconfig");
//maybe I need to do some other processing / updating / refreshing based on
an external library, maybe there's a way to update ... otherwise the
refreshSelf method updates everything,
//given that somewhere, like in the execute method (which is usually called
in the render method and used to get attributes and make child widgets),
you get those values from the configuration tiddlers
}
}
//if none of our configuration tiddlers is contained within the array of
all changed tiddlers (or if it's the otherotherconfig), just refresh the
children based on this widget and the changed tiddlers
//see widget.js how the refreshChildren method looks like
return this.refreshChildren(changedTiddlers);
};
So, the refresh method basically makes changes in your configuration in
user-land update the configuration in your widget
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