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Manual

Exporting with Scroll Exporters from a Viewport

Thomas Rough

Thomas Rough Last update: Feb 5, 2018

Using the code examples below, you can create a button to start exports from within your Viewport. For this recipe, we are going to use AUI dialogs as our UI – this depends on jQuery, but you are free to create or use any alternative.

Export with Scroll PDF Exporter 4.x 

Once you have created the export button, you can display the button in the viewport view.

Insert the required web resources

Firstly, insert the required web resources into the page.vm page of your template:

$page.resources.require("com.k15t.scroll.scroll-pdf:spark-export-ui-web-resource")

Include the export button

Now, you can to include the button code in the template wherever you want it to appear:

<button 
	class="aui-button scroll-pdf-launcher" 
	data-template-id="com.k15t.scroll.pdf.default-template-article" 
	data-space-key="$space.key"
	data-page-id="$page.id"
	data-scope="descendants"
    data-quick-start="true"
>Export current page and children to PDF</button>

Defining the export settings

You can define various settings for the export:

Setting

Information

Template used

Insert the ID of the template you want to use in the
data-template-id key. You can use global templates and templates from the space the viewport theme is defined in.

To find the template ID, open Space Tools > Add-ons > Scroll PDF Exporter, find the template you want to use, open the actions dropdown menu, and click Template Information.

Page exportedYou can define a page to be exported by replacing $space.key and $page.id with specific space key and page ID.
Scope of export

Export either only defined page, or the defined page and its children.

To export only the defined page, enter data-scope="descendants", and to export the defined page and its children, enter data-scope="current"

Quick Start

With the quick-start key, you can define whether the export uses the Quick Start option. If the key is defined as "true", the export will begin directly after the user clicks on the option.

If the key is defined as "false", the user can customize the export parameters prior to exporting. By default, this option defaults to "true" if no value is set.

Export with other Scroll Exporters  

Preparing the assets

Firstly, insert the webresources required for AUI in the head of your page.vm:

<head>
	$page.resources.js
    $page.resources.css
    $page.resources.require('com.atlassian.auiplugin:dialog2')
    $page.resources.require('com.atlassian.auiplugin:aui-progress-indicator')
</head>

Now, put the code for the dialog on the same page as your export button. You can also put it somewhere else to be later included as template.

<section role="dialog" id="demo-dialog" class="aui-layer aui-dialog2 aui-dialog2-small" aria-hidden="true">
    <header class="aui-dialog2-header">
        <h2 class="aui-dialog2-header-main">Export</h2>
        <a class="aui-dialog2-header-close">
            <span class="aui-icon aui-icon-small aui-iconfont-close-dialog">Close</span>
        </a>
    </header>
    <div class="aui-dialog2-content">
        <div id="progress-bar" class="aui-progress-indicator">
            <span class="aui-progress-indicator-value"></span>
        </div>
        <p class="status-message"></p>
    </div>
    <footer class="aui-dialog2-footer">
        <div class="aui-dialog2-footer-actions">
            <button id="dialog-close-button" class="aui-button aui-button-link">Cancel</button>
        </div>
    </footer>
</section>

If your theme does not declare the window.contextPath variable already, add this script tag in a .vm file. It must be evaluated before the JavaScript code from the next section. 

<script>
    window.contextPath = '$contextPath';
</script>

Implementing the code

The code below can be used in any <script> tag or in an external javascript file. Browser compatibility has been tested in IE9+, Firefox, Chrome and Safari.

Info

We use jQuery instead of the global $ variable so you can paste this code into a script tag in any vm file. The $ variable causes issues in vm files because of the Velocity syntax. If you put this in a separate JavaScript file feel free to use $ instead.

jQuery(document).ready(function () {
    if (jQuery('[data-exporter]').length) {
        window.openExporter = function (link) {
            var that = this;
            this.link = link;
            this.init = function () {
                that.finished = false;
                that.job = undefined;
                that.link.preventDefault();
                that.exporter = jQuery(that.link.target).data('exporter');
                that.hash = that.link.target.href.substr(that.link.target.href.indexOf('#'));
                that.pollInterval = 500;
                that.restUrl = window.contextPath + '/rest';
                that.restUrls = {
                    pdf: 'scroll-pdf/1.0',
                    office: 'scroll-office/1.0',
                    chm: 'scroll-chm/1.0',
                    html: 'scroll-html/1.0',
                    docbook: 'scroll-docbook/1.0',
                    eclipse: 'scroll-eclipsehelp/1.0',
                    epub: 'scroll-epub/1.0'
                };
                if (!!~Object.keys(that.restUrls).indexOf(that.exporter)) {
                    that.exportScheme = jQuery(that.link.target).data('export-scheme');
                    that.pageId = jQuery('[data-exporter]').data('page-id');
                    that.url = that.restUrl + '/' + that.restUrls[that.exporter] + '/export?exportSchemeId=' + that.exportScheme + '&rootPageId=' + that.pageId;
                    that.startExport();
                }
            };
            this.poll = function () {
                that.pollTimeout = setTimeout(function () {
                    jQuery.get(that.restUrl + '/' + that.restUrls[that.exporter] + '/async-tasks/' + that.job.id, function (response) {
                        that.updateDialog(response);
                        if (!response.finished && !that.finished) {
                            that.poll();
                        } else {
                            that.finishExport(response);
                        }
                    });
                }, that.pollInterval);
            };
            this.startExport = function () {
                that.openDialog();
                jQuery(that.hash + ' #dialog-close-button').text('Cancel');
                jQuery(that.hash + ' #dialog-close-button').click(function () {
                    AJS.dialog2(that.hash).hide();
                });
                jQuery.get(that.url, function (job) {
                    console.log(job);
                    that.job = job;
                    that.poll();
                });
            };
            this.finishExport = function (response) {
                that.finished = true;
                var download = that.restUrl + '/' + that.restUrls[that.exporter] + '/export/' + that.job.id + '/' + response.filename;
                jQuery(that.hash + ' .status-message').html('Export finished - <a class="aui-button aui-button-link" href="' + download + '">download</a>');
                jQuery(that.hash + ' #dialog-close-button').text('Close');
                window.location = download;
            };
            this.openDialog = function () {
                AJS.dialog2(that.hash).show();
                AJS.progressBars.setIndeterminate("#progress-bar");
                var text = 'Exporting to ' + that.exporter.toUpperCase();
                jQuery(that.hash + ' .aui-dialog2-header-main').text(text);
                jQuery(that.hash + ' .status-message').html('Waiting for export to begin');
                AJS.dialog2(that.hash).on('hide', function () {
                    if (!that.finished && that.job) {
                        that.finished = true;
                        clearTimeout(that.pollTimeout);
                        jQuery.ajax({
                            url: that.restUrl + '/' + that.restUrls[that.exporter] + '/async-tasks/' + that.job.id,
                            type: 'DELETE'
                        });
                    }
                });
            };
            this.updateDialog = function (response) {
                AJS.progressBars.update("#progress-bar", parseFloat(response.progress / 100));
                jQuery(that.hash + ' .status-message').html(response.message);
            };
            this.init();
        };
        jQuery('[data-exporter]').on('click', function (link) {
            new openExporter(link);
        });
    }
});

Usage

Any anchor element with the data attribute data-exporter is targeted for exports.

Example

<a href="#demo-dialog" data-exporter="pdf" data-export-scheme="bundled_default" data-page-id="$page.id">
    EXPORT TO PDF
</a>

Info

The href has to match the id of the dialog provided for the export.

Data Attributes

NameValue
data-export-scheme

Selects the export scheme you want to use for exporting (including the template and all your adapted settings).

Usually, bundled_default is always valid for exporting. To find out your custom export scheme ID, you have to create an export scheme and copy the exportSchemeId parameter of the REST URL.

Example: http://localhost:8010/rest/scroll-pdf/1.0/export?exportSchemeId=bundled_default&rootPageId=65541

data-exporter

Selects the Scroll Exporter to use for exporting.

The following values are supported as long as the respective Scroll Exporter is installed: pdfofficechmhtmldocbookeclipseepub

data-page-id

Selects the root page of the export.

The specified export scheme defines what pages actually will be exported. Typically you'll want to use the $page.id placeholder here.

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