Inter-Widget Communication
In some cases where an extension has multiple widgets, communication between each widget becomes crucial. This is made possible through inter-widget communication.
For instance, let us say an extension has two widgets: one at desk.ticket.detail.rightpanel and the other at desk.ticket.datil.subtab. Data from the widget on the right panel needs to be sent to the widget on the subtab. This requirement is achieved through the following code snippet:
- App.instance.getWidgets().then(function(widgets)
- {
- siblingwidgetId = widgets[0].widgetID
- var siblingWidget = App.instance.getWidgetInstance(siblingwidgetId);
- siblingWidget.emit('event', { from: Math.random() });
- });
Code Explanation
- App.instance.getWidgets() returns the array of sibling widgets of the extension.
- siblingwidgetId = widgets[0].widgetID gets the widgetID of the widget on the subtab. Here, widgets will have only one element. Therefore, iteration is not required.
- var siblingWidget = App.instance.getWidgetInstance(siblingwidgetId) returns the whole instance of the widget on the subtab.
- siblingWidget.emit('event', {from : Math.random()}) sends the event response with data to the widget on the subtab.
To enable the widget on the subtab to receive the event sent from the widget on the right panel, use the following code snippet:
- App.instance.on('event', function(data){
- // data({from : "randomnumber"}) sent from other widget
- });
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