92 lines
3.3 KiB
JavaScript
92 lines
3.3 KiB
JavaScript
/** @licstart The following is the entire license notice for the
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* JavaScript code in this page.
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*
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* Copyright: (c) 2011-2015 Sébastien SAUVAGE <sebsauvage@sebsauvage.net>
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* (c) 2011-2017 The Shaarli Community, see AUTHORS
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*
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* This software is provided 'as-is', without any express or implied warranty.
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* In no event will the authors be held liable for any damages arising from
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* the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would
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* be appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must
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* not be misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source distribution.
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*
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* @licend The above is the entire license notice
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* for the JavaScript code in this page.
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*/
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// Show the QR-Code of a permalink (when the QR-Code icon is clicked).
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function showQrCode(caller,loading)
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{
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// Dynamic javascript lib loading: We only load qr.js if the QR code icon is clicked:
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if (typeof(qr) == 'undefined') // Load qr.js only if not present.
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{
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if (!loading) // If javascript lib is still loading, do not append script to body.
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{
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var basePath = document.querySelector('input[name="js_base_path"]').value;
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var element = document.createElement("script");
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element.src = basePath + "/plugins/qrcode/qr-1.1.3.min.js";
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document.body.appendChild(element);
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}
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setTimeout(function() { showQrCode(caller,true);}, 200); // Retry in 200 milliseconds.
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return false;
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}
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// Remove previous qrcode if present.
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removeQrcode();
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// Build the div which contains the QR-Code:
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var element = document.createElement('div');
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element.id = 'permalinkQrcode';
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// Make QR-Code div commit sepuku when clicked:
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if ( element.attachEvent ){
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element.attachEvent('onclick', 'this.parentNode.removeChild(this);' );
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} else {
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// Damn IE
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element.setAttribute('onclick', 'this.parentNode.removeChild(this);' );
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}
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// Build the QR-Code:
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var image = qr.image({size: 8,value: caller.dataset.permalink});
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if (image)
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{
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element.appendChild(image);
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element.innerHTML += "<br>Click to close";
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caller.parentNode.appendChild(element);
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// Show the QRCode
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qrcodeImage = document.getElementById('permalinkQrcode');
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// Workaround to deal with newly created element lag for transition.
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window.getComputedStyle(qrcodeImage).opacity;
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qrcodeImage.className = 'show';
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}
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else
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{
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element.innerHTML = "Your browser does not seem to be HTML5 compatible.";
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}
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return false;
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}
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// Remove any displayed QR-Code
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function removeQrcode()
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{
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var elem = document.getElementById('permalinkQrcode');
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if (elem) {
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elem.parentNode.removeChild(elem);
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}
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return false;
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}
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