svgedit/editor/embedapi-dom.js

126 lines
4.1 KiB
JavaScript

/* globals jQuery */
/**
* Attaches items to DOM for Embedded SVG support.
* @module EmbeddedSVGEditDOM
*/
import EmbeddedSVGEdit from './embedapi.js';
import {isChrome} from './browser.js';
const $ = jQuery;
let svgCanvas = null;
/**
* @param {string} data
* @param {string} error
* @returns {void}
*/
function handleSvgData (data, error) {
if (error) {
// Todo: This should be replaced with a general purpose dialog alert library call
alert('error ' + error); // eslint-disable-line no-alert
} else {
// Todo: This should be replaced with a general purpose dialog alert library call
alert('Congratulations. Your SVG string is back in the host page, do with it what you will\n\n' + data); // eslint-disable-line no-alert
}
}
/**
* Set the canvas with an example SVG string.
* @returns {void}
*/
function loadSvg () {
const svgexample = '<svg width="640" height="480" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg"><g><title>Layer 1</title><rect stroke-width="5" stroke="#000000" fill="#FF0000" id="svg_1" height="35" width="51" y="35" x="32"/><ellipse ry="15" rx="24" stroke-width="5" stroke="#000000" fill="#0000ff" id="svg_2" cy="60" cx="66"/></g></svg>';
svgCanvas.setSvgString(svgexample);
}
/**
*
* @returns {void}
*/
function saveSvg () {
svgCanvas.getSvgString()(handleSvgData);
}
/**
* Perform a PNG export.
* @returns {void}
*/
function exportPNG () {
svgCanvas.getUIStrings()(function (uiStrings) {
const str = uiStrings.notification.loadingImage;
let exportWindow;
if (!isChrome()) {
exportWindow = window.open(
'data:text/html;charset=utf-8,' + encodeURIComponent('<title>' + str + '</title><h1>' + str + '</h1>'),
'svg-edit-exportWindow'
);
}
svgCanvas.rasterExport('PNG', null, exportWindow && exportWindow.name)();
});
}
/**
* Perform a PDF export.
* @returns {void}
*/
function exportPDF () {
svgCanvas.getUIStrings()(function (uiStrings) {
const str = uiStrings.notification.loadingImage;
/*
// If you want to handle the PDF blob yourself, do as follows
svgCanvas.bind('exportedPDF', function (win, data) {
alert(data.output);
});
svgCanvas.exportPDF(); // Accepts two args: optionalWindowName supplied back to bound exportPDF handler and optional outputType (defaults to dataurlstring)
return;
*/
if (isChrome()) {
// Chrome will open an extra window if we follow the approach below
svgCanvas.exportPDF();
} else {
const exportWindow = window.open(
'data:text/html;charset=utf-8,' + encodeURIComponent('<title>' + str + '</title><h1>' + str + '</h1>'),
'svg-edit-exportWindow'
);
svgCanvas.exportPDF(exportWindow && exportWindow.name);
}
});
}
const frameBase = 'https://raw.githack.com/SVG-Edit/svgedit/master';
// const frameBase = 'http://localhost:8001';
const framePath = '/editor/xdomain-svg-editor-es.html?extensions=ext-xdomain-messaging.js';
const iframe = $('<iframe width="900px" height="600px" id="svgedit"></iframe>');
iframe[0].src = frameBase + framePath +
(location.href.includes('?')
// ? location.href.replace(/\?(?<search>.*)$/, '&$<search>')
? location.href.replace(/\?(.*)$/, '&$1')
: ''); // Append arguments to this file onto the iframe
iframe[0].addEventListener('load', function () {
svgCanvas = new EmbeddedSVGEdit(frame, [new URL(frameBase).origin]);
// Hide main button, as we will be controlling new, load, save, etc. from the host document
let doc;
try {
doc = frame.contentDocument || frame.contentWindow.document;
} catch (err) {
console.log('Blocked from accessing document', err); // eslint-disable-line no-console
}
if (doc) {
// Todo: Provide a way to get this to occur by `postMessage`
const mainButton = doc.getElementById('main_button');
mainButton.style.display = 'none';
}
// Add event handlers now that `svgCanvas` is ready
$('#load').click(loadSvg);
$('#save').click(saveSvg);
$('#exportPNG').click(exportPNG);
$('#exportPDF').click(exportPDF);
});
$('body').append(iframe);
const frame = document.getElementById('svgedit');