Enable export of your visualization extension
By allowing users to export your visualization extensions, users can generate insights and share them with people outside the boundaries of a Qlik Sense system. For instance you can cooperate with customers and suppliers and take decisions based on selected data.
To be able to export your visualization extensions, the export feature must be enabled in the code of the visualization extension. The following export functions can be enabled:
- Export to image
- Export to PDF
- Export story to PowerPoint
- Export story to PDF
- Export data
The following limitations apply:
-
Qlik Sense does not support exporting or printing of visualization extensions that use external resources.
-
Qlik Sense does not support exporting or printing of visualization extensions that use internal and undocumented JavaScript modules or APIs.
-
When exporting as an image, the maximum size that can be exported is 2,000 by 2,000 pixels. If the export would result in a larger image, the user must reduce the size under
Customin theExport as an image dialogin the app.
Export to image, PDF, and PowerPoint
The export property is used to turn on or turn off the ability to export the
visualization extension as an image and as a PDF. It also allows the
visualization extension to be included in an export from data storytelling
(to PowerPoint or PDF). When export is set to true, the Export as an image
and the Export to PDF context menu options will be available for the visualization
extension. This also allows visualization extensions to be part of stories
exported to PowerPoint or PDF on the Export story to PowerPoint and
Export story to PDF context menu options.
Example: Export as an image
This example creates a deferred promise that is resolved when the image is
loaded. This ensures that the extension has finished rendering before the
paint method exits.
define(['qlik'], function (qlik) {
return {
support: {
export: true
},
paint: function ($element, layout) {
const dfd = qlik.Promise.defer();
const image = document.createElement('img');
image.src = 'https://shorturl.at/iyHO0';
image.onload = dfd.resolve;
$element.append(image);
return dfd;
}
};
});
Example: export property defined as a function
In this example, the export property is used as a function and does not allow
export to image when no data is available in the visualization extension.
definition : properties,
support : {
export: function( layout ) {
return layout.qHyperCube.qDataPages[0].qMatrix.length;
}
},
paint : function($element, layout) {
As well as this, you must set up the “finished rendering” notification in the paint method.
Export data
The exportData property is used to turn on or turn off the ability to export
data from the visualization extension and save it in an XLSX file. When set
to true, the Export data context menu option is enabled for the
visualization extension.
As well as this, you must set up the “finished rendering” notification in the paint method.
Note: The default value of the exportData property is true, which means that
the option to export to data is enabled even if the property is not defined in
the code.
Example: Basic example of exportData property
definition : properties,
support : {
exportData: true
},
paint : function($element, layout) {
Example: exportData as a function
In this example, the exportData property is used as a function and does not allow export of data when no data is available in the visualization extension.
definition : properties,
support : {
exportData: function( layout ) {
return layout.qHyperCube.qDataPages[0].qMatrix.length;
}
},
paint : function($element, layout) {
Set up “finished rendering” notification
To complete the enabling of export you must inform the printing service, in the paint method, that the extension has finished rendering.
// ...,
paint : function() {
return qlik.Promise.resolve();
}
// ...