mirror of
https://github.com/YunoHost-Apps/hubzilla_ynh.git
synced 2024-09-03 19:26:21 +02:00
315 lines
12 KiB
JavaScript
315 lines
12 KiB
JavaScript
/*
|
|
* jQuery File Upload Image Preview & Resize Plugin 1.7.2
|
|
* https://github.com/blueimp/jQuery-File-Upload
|
|
*
|
|
* Copyright 2013, Sebastian Tschan
|
|
* https://blueimp.net
|
|
*
|
|
* Licensed under the MIT license:
|
|
* http://www.opensource.org/licenses/MIT
|
|
*/
|
|
|
|
/* jshint nomen:false */
|
|
/* global define, 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-exif',
|
|
'load-image-ios',
|
|
'canvas-to-blob',
|
|
'./jquery.fileupload-process'
|
|
], factory);
|
|
} 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 = $.Deferred();
|
|
if (data.canvas.toBlob) {
|
|
data.canvas.toBlob(
|
|
function (blob) {
|
|
if (!blob.name) {
|
|
if (file.type === blob.type) {
|
|
blob.name = file.name;
|
|
} else if (file.name) {
|
|
blob.name = file.name.replace(
|
|
/\..+$/,
|
|
'.' + 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;
|
|
}
|
|
|
|
}
|
|
|
|
});
|
|
|
|
}));
|