aboutsummaryrefslogtreecommitdiffstats
path: root/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-image.js
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/blueimp/jquery-file-upload/js/jquery.fileupload-image.js')
-rw-r--r--vendor/blueimp/jquery-file-upload/js/jquery.fileupload-image.js326
1 files changed, 326 insertions, 0 deletions
diff --git a/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-image.js b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-image.js
new file mode 100644
index 000000000..65fc6d7b8
--- /dev/null
+++ b/vendor/blueimp/jquery-file-upload/js/jquery.fileupload-image.js
@@ -0,0 +1,326 @@
+/*
+ * jQuery File Upload Image Preview & Resize Plugin
+ * https://github.com/blueimp/jQuery-File-Upload
+ *
+ * Copyright 2013, Sebastian Tschan
+ * https://blueimp.net
+ *
+ * Licensed under the MIT license:
+ * https://opensource.org/licenses/MIT
+ */
+
+/* jshint nomen:false */
+/* global define, require, window, Blob */
+
+;(function (factory) {
+ 'use strict';
+ if (typeof define === 'function' && define.amd) {
+ // Register as an anonymous AMD module:
+ define([
+ 'jquery',
+ 'load-image',
+ 'load-image-meta',
+ 'load-image-scale',
+ 'load-image-exif',
+ 'canvas-to-blob',
+ './jquery.fileupload-process'
+ ], factory);
+ } else if (typeof exports === 'object') {
+ // Node/CommonJS:
+ factory(
+ require('jquery'),
+ require('blueimp-load-image/js/load-image'),
+ require('blueimp-load-image/js/load-image-meta'),
+ require('blueimp-load-image/js/load-image-scale'),
+ require('blueimp-load-image/js/load-image-exif'),
+ require('blueimp-canvas-to-blob'),
+ require('./jquery.fileupload-process')
+ );
+ } else {
+ // Browser globals:
+ factory(
+ window.jQuery,
+ window.loadImage
+ );
+ }
+}(function ($, loadImage) {
+ 'use strict';
+
+ // Prepend to the default processQueue:
+ $.blueimp.fileupload.prototype.options.processQueue.unshift(
+ {
+ action: 'loadImageMetaData',
+ disableImageHead: '@',
+ disableExif: '@',
+ disableExifThumbnail: '@',
+ disableExifSub: '@',
+ disableExifGps: '@',
+ disabled: '@disableImageMetaDataLoad'
+ },
+ {
+ action: 'loadImage',
+ // Use the action as prefix for the "@" options:
+ prefix: true,
+ fileTypes: '@',
+ maxFileSize: '@',
+ noRevoke: '@',
+ disabled: '@disableImageLoad'
+ },
+ {
+ action: 'resizeImage',
+ // Use "image" as prefix for the "@" options:
+ prefix: 'image',
+ maxWidth: '@',
+ maxHeight: '@',
+ minWidth: '@',
+ minHeight: '@',
+ crop: '@',
+ orientation: '@',
+ forceResize: '@',
+ disabled: '@disableImageResize'
+ },
+ {
+ action: 'saveImage',
+ quality: '@imageQuality',
+ type: '@imageType',
+ disabled: '@disableImageResize'
+ },
+ {
+ action: 'saveImageMetaData',
+ disabled: '@disableImageMetaDataSave'
+ },
+ {
+ action: 'resizeImage',
+ // Use "preview" as prefix for the "@" options:
+ prefix: 'preview',
+ maxWidth: '@',
+ maxHeight: '@',
+ minWidth: '@',
+ minHeight: '@',
+ crop: '@',
+ orientation: '@',
+ thumbnail: '@',
+ canvas: '@',
+ disabled: '@disableImagePreview'
+ },
+ {
+ action: 'setImage',
+ name: '@imagePreviewName',
+ disabled: '@disableImagePreview'
+ },
+ {
+ action: 'deleteImageReferences',
+ disabled: '@disableImageReferencesDeletion'
+ }
+ );
+
+ // The File Upload Resize plugin extends the fileupload widget
+ // with image resize functionality:
+ $.widget('blueimp.fileupload', $.blueimp.fileupload, {
+
+ options: {
+ // The regular expression for the types of images to load:
+ // matched against the file type:
+ loadImageFileTypes: /^image\/(gif|jpeg|png|svg\+xml)$/,
+ // The maximum file size of images to load:
+ loadImageMaxFileSize: 10000000, // 10MB
+ // The maximum width of resized images:
+ imageMaxWidth: 1920,
+ // The maximum height of resized images:
+ imageMaxHeight: 1080,
+ // Defines the image orientation (1-8) or takes the orientation
+ // value from Exif data if set to true:
+ imageOrientation: false,
+ // Define if resized images should be cropped or only scaled:
+ imageCrop: false,
+ // Disable the resize image functionality by default:
+ disableImageResize: true,
+ // The maximum width of the preview images:
+ previewMaxWidth: 80,
+ // The maximum height of the preview images:
+ previewMaxHeight: 80,
+ // Defines the preview orientation (1-8) or takes the orientation
+ // value from Exif data if set to true:
+ previewOrientation: true,
+ // Create the preview using the Exif data thumbnail:
+ previewThumbnail: true,
+ // Define if preview images should be cropped or only scaled:
+ previewCrop: false,
+ // Define if preview images should be resized as canvas elements:
+ previewCanvas: true
+ },
+
+ processActions: {
+
+ // Loads the image given via data.files and data.index
+ // as img element, if the browser supports the File API.
+ // Accepts the options fileTypes (regular expression)
+ // and maxFileSize (integer) to limit the files to load:
+ loadImage: function (data, options) {
+ if (options.disabled) {
+ return data;
+ }
+ var that = this,
+ file = data.files[data.index],
+ dfd = $.Deferred();
+ if (($.type(options.maxFileSize) === 'number' &&
+ file.size > options.maxFileSize) ||
+ (options.fileTypes &&
+ !options.fileTypes.test(file.type)) ||
+ !loadImage(
+ file,
+ function (img) {
+ if (img.src) {
+ data.img = img;
+ }
+ dfd.resolveWith(that, [data]);
+ },
+ options
+ )) {
+ return data;
+ }
+ return dfd.promise();
+ },
+
+ // Resizes the image given as data.canvas or data.img
+ // and updates data.canvas or data.img with the resized image.
+ // Also stores the resized image as preview property.
+ // Accepts the options maxWidth, maxHeight, minWidth,
+ // minHeight, canvas and crop:
+ resizeImage: function (data, options) {
+ if (options.disabled || !(data.canvas || data.img)) {
+ return data;
+ }
+ options = $.extend({canvas: true}, options);
+ var that = this,
+ dfd = $.Deferred(),
+ img = (options.canvas && data.canvas) || data.img,
+ resolve = function (newImg) {
+ if (newImg && (newImg.width !== img.width ||
+ newImg.height !== img.height ||
+ options.forceResize)) {
+ data[newImg.getContext ? 'canvas' : 'img'] = newImg;
+ }
+ data.preview = newImg;
+ dfd.resolveWith(that, [data]);
+ },
+ thumbnail;
+ if (data.exif) {
+ if (options.orientation === true) {
+ options.orientation = data.exif.get('Orientation');
+ }
+ if (options.thumbnail) {
+ thumbnail = data.exif.get('Thumbnail');
+ if (thumbnail) {
+ loadImage(thumbnail, resolve, options);
+ return dfd.promise();
+ }
+ }
+ // Prevent orienting the same image twice:
+ if (data.orientation) {
+ delete options.orientation;
+ } else {
+ data.orientation = options.orientation;
+ }
+ }
+ if (img) {
+ resolve(loadImage.scale(img, options));
+ return dfd.promise();
+ }
+ return data;
+ },
+
+ // Saves the processed image given as data.canvas
+ // inplace at data.index of data.files:
+ saveImage: function (data, options) {
+ if (!data.canvas || options.disabled) {
+ return data;
+ }
+ var that = this,
+ file = data.files[data.index],
+ dfd = $.Deferred();
+ if (data.canvas.toBlob) {
+ data.canvas.toBlob(
+ function (blob) {
+ if (!blob.name) {
+ if (file.type === blob.type) {
+ blob.name = file.name;
+ } else if (file.name) {
+ blob.name = file.name.replace(
+ /\.\w+$/,
+ '.' + blob.type.substr(6)
+ );
+ }
+ }
+ // Don't restore invalid meta data:
+ if (file.type !== blob.type) {
+ delete data.imageHead;
+ }
+ // Store the created blob at the position
+ // of the original file in the files list:
+ data.files[data.index] = blob;
+ dfd.resolveWith(that, [data]);
+ },
+ options.type || file.type,
+ options.quality
+ );
+ } else {
+ return data;
+ }
+ return dfd.promise();
+ },
+
+ loadImageMetaData: function (data, options) {
+ if (options.disabled) {
+ return data;
+ }
+ var that = this,
+ dfd = $.Deferred();
+ loadImage.parseMetaData(data.files[data.index], function (result) {
+ $.extend(data, result);
+ dfd.resolveWith(that, [data]);
+ }, options);
+ return dfd.promise();
+ },
+
+ saveImageMetaData: function (data, options) {
+ if (!(data.imageHead && data.canvas &&
+ data.canvas.toBlob && !options.disabled)) {
+ return data;
+ }
+ var file = data.files[data.index],
+ blob = new Blob([
+ data.imageHead,
+ // Resized images always have a head size of 20 bytes,
+ // including the JPEG marker and a minimal JFIF header:
+ this._blobSlice.call(file, 20)
+ ], {type: file.type});
+ blob.name = file.name;
+ data.files[data.index] = blob;
+ return data;
+ },
+
+ // Sets the resized version of the image as a property of the
+ // file object, must be called after "saveImage":
+ setImage: function (data, options) {
+ if (data.preview && !options.disabled) {
+ data.files[data.index][options.name || 'preview'] = data.preview;
+ }
+ return data;
+ },
+
+ deleteImageReferences: function (data, options) {
+ if (!options.disabled) {
+ delete data.img;
+ delete data.canvas;
+ delete data.preview;
+ delete data.imageHead;
+ }
+ return data;
+ }
+
+ }
+
+ });
+
+}));
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 23:53:59 +0000