57 lines
2.6 KiB
JavaScript
57 lines
2.6 KiB
JavaScript
/* jshint node:true, browser:true */
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// Ghost Image Preview
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//
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// Manages the conversion of image markdown `![]()` from markdown into the HTML image preview
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// This provides a dropzone and other interface elements for adding images
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// Is only used in the admin client.
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var Ghost = Ghost || {};
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(function () {
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var ghostimagepreview = function () {
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return [
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// ![] image syntax
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{
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type: 'lang',
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filter: function (text) {
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var imageMarkdownRegex = /^(?:\{<(.*?)>\})?!(?:\[([^\n\]]*)\])(?:\(([^\n\]]*)\))?$/gim,
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/* regex from isURL in node-validator. Yum! */
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uriRegex = /^(?!mailto:)(?:(?:https?|ftp):\/\/)?(?:\S+(?::\S*)?@)?(?:(?:(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[0-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z\u00a1-\uffff0-9]+-?)*[a-z\u00a1-\uffff0-9]+)(?:\.(?:[a-z\u00a1-\uffff0-9]+-?)*[a-z\u00a1-\uffff0-9]+)*(?:\.(?:[a-z\u00a1-\uffff]{2,})))|localhost)(?::\d{2,5})?(?:\/[^\s]*)?$/i,
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pathRegex = /^(\/)?([^\/\0]+(\/)?)+$/i;
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return text.replace(imageMarkdownRegex, function (match, key, alt, src) {
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var result = '',
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output;
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if (src && (src.match(uriRegex) || src.match(pathRegex))) {
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result = '<img class="js-upload-target" src="' + src + '"/>';
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}
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if (Ghost && Ghost.touchEditor) {
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output = '<section class="image-uploader">' +
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result + '<div class="description">Mobile uploads coming soon</div></section>';
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} else {
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output = '<section id="image_upload_' + key + '" class="js-drop-zone image-uploader">' +
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result + '<div class="description">Add image of <strong>' + alt + '</strong></div>' +
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'<input data-url="upload" class="js-fileupload main fileupload" type="file" name="uploadimage">' +
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'</section>';
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}
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return output;
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});
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}
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}
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];
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};
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// Client-side export
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if (typeof window !== 'undefined' && window.Showdown && window.Showdown.extensions) {
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window.Showdown.extensions.ghostimagepreview = ghostimagepreview;
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}
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// Server-side export
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if (typeof module !== 'undefined') {
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module.exports = ghostimagepreview;
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}
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}());
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