57 lines
1.7 KiB
JavaScript
57 lines
1.7 KiB
JavaScript
/* globals svgEditor */
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const atags = document.querySelectorAll('a')
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Array.prototype.forEach.call(atags, function (aEle) {
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svgEditor.$click(aEle, function (event) {
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event.preventDefault()
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const { href } = event.currentTarget
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const target = window.parent
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const post = (message) => {
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// Todo: Make origin customizable as set by opening window
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// Todo: If dropping IE9, avoid stringifying
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target.postMessage(JSON.stringify({
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namespace: 'imagelib',
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...message
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}), '*')
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}
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// Convert Non-SVG images to data URL first
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// (this could also have been done server-side by the library)
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// Send metadata (also indicates file is about to be sent)
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post({
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name: event.currentTarget.textContent,
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id: href
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})
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if (!href.includes('.svg')) {
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const img = new Image()
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img.addEventListener('load', function () {
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const canvas = document.createElement('canvas')
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canvas.width = this.width
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canvas.height = this.height
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// load the raster image into the canvas
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canvas.getContext('2d').drawImage(this, 0, 0)
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// retrieve the data: URL
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let data
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try {
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data = canvas.toDataURL()
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} catch (err) {
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// This fails in Firefox with `file:///` URLs :(
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// Todo: This could use a generic alert library instead
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alert('Data URL conversion failed: ' + err)
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data = ''
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}
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post({ href, data })
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})
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img.src = href
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} else {
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fetch(href)
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.then((r) => r.text())
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.then((data) => {
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post({ href, data })
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return data
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})
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.catch((error) => console.error(error))
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}
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return false
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})
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})
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