685 lines
21 KiB
JavaScript
685 lines
21 KiB
JavaScript
/*
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Angular File Upload v0.3.3.1
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https://github.com/nervgh/angular-file-upload
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*/
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(function(angular, factory) {
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if (typeof define === 'function' && define.amd) {
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define('angular-file-upload', ['angular'], function(angular) {
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return factory(angular);
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});
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} else {
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return factory(angular);
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}
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}(angular || null, function(angular) {
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var app = angular.module('angularFileUpload', []);
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// It is attached to an element that catches the event drop file
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app.directive('ngFileDrop', [ '$fileUploader', function ($fileUploader) {
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'use strict';
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return {
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// don't use drag-n-drop files in IE9, because not File API support
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link: !$fileUploader.isHTML5 ? angular.noop : function (scope, element, attributes) {
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element
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.bind('drop', function (event) {
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var dataTransfer = event.dataTransfer ?
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event.dataTransfer :
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event.originalEvent.dataTransfer; // jQuery fix;
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if (!dataTransfer) return;
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event.preventDefault();
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event.stopPropagation();
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scope.$broadcast('file:removeoverclass');
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scope.$emit('file:add', dataTransfer.files, scope.$eval(attributes.ngFileDrop));
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})
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.bind('dragover', function (event) {
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var dataTransfer = event.dataTransfer ?
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event.dataTransfer :
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event.originalEvent.dataTransfer; // jQuery fix;
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event.preventDefault();
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event.stopPropagation();
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dataTransfer.dropEffect = 'copy';
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scope.$broadcast('file:addoverclass');
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})
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.bind('dragleave', function () {
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scope.$broadcast('file:removeoverclass');
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});
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}
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};
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}])
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// It is attached to an element which will be assigned to a class "ng-file-over" or ng-file-over="className"
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app.directive('ngFileOver', function () {
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'use strict';
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return {
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link: function (scope, element, attributes) {
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scope.$on('file:addoverclass', function () {
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element.addClass(attributes.ngFileOver || 'ng-file-over');
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});
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scope.$on('file:removeoverclass', function () {
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element.removeClass(attributes.ngFileOver || 'ng-file-over');
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});
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}
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};
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});
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// It is attached to <input type="file"> element like <ng-file-select="options">
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app.directive('ngFileSelect', [ '$fileUploader', function ($fileUploader) {
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'use strict';
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return {
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link: function (scope, element, attributes) {
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$fileUploader.isHTML5 || element.removeAttr('multiple');
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element.bind('change', function () {
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scope.$emit('file:add', $fileUploader.isHTML5 ? this.files : this, scope.$eval(attributes.ngFileSelect));
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($fileUploader.isHTML5 && element.attr('multiple')) && element.prop('value', null);
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});
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element.prop('value', null); // FF fix
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}
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};
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}]);
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app.factory('$fileUploader', [ '$compile', '$rootScope', '$http', '$window', function ($compile, $rootScope, $http, $window) {
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'use strict';
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/**
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* Creates a uploader
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* @param {Object} params
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* @constructor
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*/
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function Uploader(params) {
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angular.extend(this, {
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scope: $rootScope,
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url: '/',
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alias: 'file',
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queue: [],
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headers: {},
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progress: null,
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autoUpload: false,
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removeAfterUpload: false,
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method: 'POST',
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filters: [],
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formData: [],
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isUploading: false,
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_nextIndex: 0,
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_timestamp: Date.now()
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}, params);
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// add the base filter
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this.filters.unshift(this._filter);
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this.scope.$on('file:add', function (event, items, options) {
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event.stopPropagation();
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this.addToQueue(items, options);
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}.bind(this));
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this.bind('beforeupload', Item.prototype._beforeupload);
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this.bind('in:progress', Item.prototype._progress);
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this.bind('in:success', Item.prototype._success);
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this.bind('in:cancel', Item.prototype._cancel);
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this.bind('in:error', Item.prototype._error);
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this.bind('in:complete', Item.prototype._complete);
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this.bind('in:progress', this._progress);
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this.bind('in:complete', this._complete);
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}
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Uploader.prototype = {
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/**
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* Link to the constructor
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*/
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constructor: Uploader,
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/**
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* The base filter. If returns "true" an item will be added to the queue
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* @param {File|Input} item
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* @returns {boolean}
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* @private
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*/
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_filter: function (item) {
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return angular.isElement(item) ? true : !!item.size;
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},
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/**
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* Registers a event handler
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* @param {String} event
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* @param {Function} handler
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* @return {Function} unsubscribe function
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*/
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bind: function (event, handler) {
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return this.scope.$on(this._timestamp + ':' + event, handler.bind(this));
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},
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/**
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* Triggers events
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* @param {String} event
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* @param {...*} [some]
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*/
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trigger: function (event, some) {
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arguments[ 0 ] = this._timestamp + ':' + event;
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this.scope.$broadcast.apply(this.scope, arguments);
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},
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/**
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* Checks a support the html5 uploader
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* @returns {Boolean}
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* @readonly
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*/
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isHTML5: !!($window.File && $window.FormData),
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/**
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* Adds items to the queue
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* @param {FileList|File|HTMLInputElement} items
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* @param {Object} [options]
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*/
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addToQueue: function (items, options) {
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var length = this.queue.length;
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var list = 'length' in items ? items : [items];
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angular.forEach(list, function (file) {
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// check a [File|HTMLInputElement]
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var isValid = !this.filters.length ? true : this.filters.every(function (filter) {
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return filter.call(this, file);
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}, this);
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// create new item
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var item = new Item(angular.extend({
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url: this.url,
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alias: this.alias,
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headers: angular.copy(this.headers),
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formData: angular.copy(this.formData),
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removeAfterUpload: this.removeAfterUpload,
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method: this.method,
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uploader: this,
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file: file
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}, options));
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if (isValid) {
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this.queue.push(item);
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this.trigger('afteraddingfile', item);
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} else {
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this.trigger('whenaddingfilefailed', item);
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}
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}, this);
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if (this.queue.length !== length) {
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this.trigger('afteraddingall', this.queue);
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this.progress = this._getTotalProgress();
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}
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this._render();
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this.autoUpload && this.uploadAll();
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},
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/**
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* Remove items from the queue. Remove last: index = -1
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* @param {Item|Number} value
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*/
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removeFromQueue: function (value) {
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var index = this.getIndexOfItem(value);
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var item = this.queue[ index ];
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item.isUploading && item.cancel();
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this.queue.splice(index, 1);
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item._destroy();
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this.progress = this._getTotalProgress();
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},
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/**
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* Clears the queue
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*/
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clearQueue: function () {
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this.queue.forEach(function (item) {
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item.isUploading && item.cancel();
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item._destroy();
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}, this);
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this.queue.length = 0;
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this.progress = 0;
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},
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/**
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* Returns a index of item from the queue
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* @param {Item|Number} value
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* @returns {Number}
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*/
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getIndexOfItem: function (value) {
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return angular.isObject(value) ? this.queue.indexOf(value) : value;
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},
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/**
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* Returns not uploaded items
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* @returns {Array}
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*/
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getNotUploadedItems: function () {
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return this.queue.filter(function (item) {
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return !item.isUploaded;
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});
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},
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/**
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* Returns items ready for upload
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* @returns {Array}
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*/
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getReadyItems: function() {
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return this.queue
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.filter(function(item) {
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return item.isReady && !item.isUploading;
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})
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.sort(function(item1, item2) {
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return item1.index - item2.index;
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});
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},
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/**
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* Uploads a item from the queue
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* @param {Item|Number} value
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*/
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uploadItem: function (value) {
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var index = this.getIndexOfItem(value);
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var item = this.queue[ index ];
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var transport = this.isHTML5 ? '_xhrTransport' : '_iframeTransport';
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item.index = item.index || this._nextIndex++;
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item.isReady = true;
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if (this.isUploading) {
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return;
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}
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this.isUploading = true;
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this[ transport ](item);
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},
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/**
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* Cancels uploading of item from the queue
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* @param {Item|Number} value
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*/
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cancelItem: function(value) {
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var index = this.getIndexOfItem(value);
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var item = this.queue[ index ];
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var prop = this.isHTML5 ? '_xhr' : '_form';
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item[prop] && item[prop].abort();
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},
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/**
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* Uploads all not uploaded items of queue
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*/
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uploadAll: function () {
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var items = this.getNotUploadedItems().filter(function(item) {
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return !item.isUploading;
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});
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items.forEach(function(item) {
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item.index = item.index || this._nextIndex++;
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item.isReady = true;
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}, this);
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items.length && this.uploadItem(items[ 0 ]);
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},
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/**
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* Cancels all uploads
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*/
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cancelAll: function() {
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this.getNotUploadedItems().forEach(function(item) {
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this.cancelItem(item);
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}, this);
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},
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/**
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* Updates angular scope
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* @private
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*/
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_render: function() {
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this.scope.$$phase || this.scope.$digest();
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},
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/**
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* Returns the total progress
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* @param {Number} [value]
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* @returns {Number}
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* @private
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*/
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_getTotalProgress: function (value) {
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if (this.removeAfterUpload) {
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return value || 0;
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}
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var notUploaded = this.getNotUploadedItems().length;
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var uploaded = notUploaded ? this.queue.length - notUploaded : this.queue.length;
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var ratio = 100 / this.queue.length;
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var current = (value || 0) * ratio / 100;
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return Math.round(uploaded * ratio + current);
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},
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/**
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* The 'in:progress' handler
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* @private
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*/
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_progress: function (event, item, progress) {
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var result = this._getTotalProgress(progress);
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this.trigger('progressall', result);
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this.progress = result;
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this._render();
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},
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/**
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* The 'in:complete' handler
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* @private
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*/
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_complete: function () {
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var item = this.getReadyItems()[ 0 ];
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this.isUploading = false;
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if (angular.isDefined(item)) {
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this.uploadItem(item);
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return;
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}
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this.trigger('completeall', this.queue);
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this.progress = this._getTotalProgress();
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this._render();
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},
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/**
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* The XMLHttpRequest transport
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* @private
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*/
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_xhrTransport: function (item) {
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var xhr = item._xhr = new XMLHttpRequest();
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var form = new FormData();
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var that = this;
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this.trigger('beforeupload', item);
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item.formData.forEach(function(obj) {
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angular.forEach(obj, function(value, key) {
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form.append(key, value);
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});
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});
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form.append(item.alias, item.file);
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xhr.upload.onprogress = function (event) {
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var progress = event.lengthComputable ? event.loaded * 100 / event.total : 0;
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that.trigger('in:progress', item, Math.round(progress));
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};
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xhr.onload = function () {
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var response = that._transformResponse(xhr.response);
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var event = that._isSuccessCode(xhr.status) ? 'success' : 'error';
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that.trigger('in:' + event, xhr, item, response);
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that.trigger('in:complete', xhr, item, response);
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};
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xhr.onerror = function () {
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that.trigger('in:error', xhr, item);
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that.trigger('in:complete', xhr, item);
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};
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xhr.onabort = function () {
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that.trigger('in:cancel', xhr, item);
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that.trigger('in:complete', xhr, item);
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};
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xhr.open(item.method, item.url, true);
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angular.forEach(item.headers, function (value, name) {
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xhr.setRequestHeader(name, value);
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});
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xhr.send(form);
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},
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/**
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* The IFrame transport
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* @private
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*/
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_iframeTransport: function (item) {
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var form = angular.element('<form style="display: none;" />');
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var iframe = angular.element('<iframe name="iframeTransport' + Date.now() + '">');
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var input = item._input;
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var that = this;
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item._form && item._form.replaceWith(input); // remove old form
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item._form = form; // save link to new form
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this.trigger('beforeupload', item);
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input.prop('name', item.alias);
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item.formData.forEach(function(obj) {
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angular.forEach(obj, function(value, key) {
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form.append(angular.element('<input type="hidden" name="' + key + '" value="' + value + '" />'));
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});
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});
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form.prop({
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action: item.url,
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method: item.method,
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target: iframe.prop('name'),
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enctype: 'multipart/form-data',
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encoding: 'multipart/form-data' // old IE
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});
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iframe.bind('load', function () {
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// fixed angular.contents() for iframes
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var html = iframe[0].contentDocument.body.innerHTML;
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var xhr = { response: html, status: 200, dummy: true };
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var response = that._transformResponse(xhr.response);
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that.trigger('in:success', xhr, item, response);
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that.trigger('in:complete', xhr, item, response);
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});
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form.abort = function() {
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var xhr = { status: 0, dummy: true };
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iframe.unbind('load').prop('src', 'javascript:false;');
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form.replaceWith(input);
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that.trigger('in:cancel', xhr, item);
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that.trigger('in:complete', xhr, item);
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};
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input.after(form);
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form.append(input).append(iframe);
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form[ 0 ].submit();
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},
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/**
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* Checks whether upload successful
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* @param {Number} status
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* @returns {Boolean}
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* @private
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*/
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_isSuccessCode: function(status) {
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return (status >= 200 && status < 300) || status === 304;
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},
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/**
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* Transforms the server response
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* @param {*} response
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* @returns {*}
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* @private
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*/
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_transformResponse: function (response) {
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$http.defaults.transformResponse.forEach(function (transformFn) {
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response = transformFn(response);
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});
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return response;
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}
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};
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/**
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* Create a item
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* @param {Object} params
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* @constructor
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*/
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function Item(params) {
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// fix for old browsers
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if (!Uploader.prototype.isHTML5) {
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var input = angular.element(params.file);
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var clone = $compile(input.clone())(params.uploader.scope);
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var value = input.val();
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params.file = {
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lastModifiedDate: null,
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size: null,
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type: 'like/' + value.slice(value.lastIndexOf('.') + 1).toLowerCase(),
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name: value.slice(value.lastIndexOf('/') + value.lastIndexOf('\\') + 2)
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};
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params._input = input;
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clone.prop('value', null); // FF fix
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input.css('display', 'none').after(clone); // remove jquery dependency
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}
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angular.extend(this, {
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isReady: false,
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isUploading: false,
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isUploaded: false,
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isSuccess: false,
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isCancel: false,
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isError: false,
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progress: null,
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index: null
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}, params);
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}
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Item.prototype = {
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/**
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* Link to the constructor
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*/
|
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constructor: Item,
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/**
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* Removes a item
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*/
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remove: function () {
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this.uploader.removeFromQueue(this);
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},
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/**
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* Uploads a item
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*/
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upload: function () {
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this.uploader.uploadItem(this);
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},
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/**
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* Cancels uploading
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*/
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cancel: function() {
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this.uploader.cancelItem(this);
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},
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/**
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* Destroys form and input
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* @private
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*/
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_destroy: function() {
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this._form && this._form.remove();
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this._input && this._input.remove();
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delete this._form;
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delete this._input;
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},
|
|
/**
|
|
* The 'beforeupload' handler
|
|
* @param {Object} event
|
|
* @param {Item} item
|
|
* @private
|
|
*/
|
|
_beforeupload: function (event, item) {
|
|
item.isReady = true;
|
|
item.isUploading = true;
|
|
item.isUploaded = false;
|
|
item.isSuccess = false;
|
|
item.isCancel = false;
|
|
item.isError = false;
|
|
item.progress = 0;
|
|
},
|
|
/**
|
|
* The 'in:progress' handler
|
|
* @param {Object} event
|
|
* @param {Item} item
|
|
* @param {Number} progress
|
|
* @private
|
|
*/
|
|
_progress: function (event, item, progress) {
|
|
item.progress = progress;
|
|
item.uploader.trigger('progress', item, progress);
|
|
},
|
|
/**
|
|
* The 'in:success' handler
|
|
* @param {Object} event
|
|
* @param {XMLHttpRequest} xhr
|
|
* @param {Item} item
|
|
* @param {*} response
|
|
* @private
|
|
*/
|
|
_success: function (event, xhr, item, response) {
|
|
item.isReady = false;
|
|
item.isUploading = false;
|
|
item.isUploaded = true;
|
|
item.isSuccess = true;
|
|
item.isCancel = false;
|
|
item.isError = false;
|
|
item.progress = 100;
|
|
item.index = null;
|
|
item.uploader.trigger('success', xhr, item, response);
|
|
},
|
|
/**
|
|
* The 'in:cancel' handler
|
|
* @param {Object} event
|
|
* @param {XMLHttpRequest} xhr
|
|
* @param {Item} item
|
|
* @private
|
|
*/
|
|
_cancel: function(event, xhr, item) {
|
|
item.isReady = false;
|
|
item.isUploading = false;
|
|
item.isUploaded = false;
|
|
item.isSuccess = false;
|
|
item.isCancel = true;
|
|
item.isError = false;
|
|
item.progress = 0;
|
|
item.index = null;
|
|
item.uploader.trigger('cancel', xhr, item);
|
|
},
|
|
/**
|
|
* The 'in:error' handler
|
|
* @param {Object} event
|
|
* @param {XMLHttpRequest} xhr
|
|
* @param {Item} item
|
|
* @param {*} response
|
|
* @private
|
|
*/
|
|
_error: function (event, xhr, item, response) {
|
|
item.isReady = false;
|
|
item.isUploading = false;
|
|
item.isUploaded = true;
|
|
item.isSuccess = false;
|
|
item.isCancel = false;
|
|
item.isError = true;
|
|
item.progress = 100;
|
|
item.index = null;
|
|
item.uploader.trigger('error', xhr, item, response);
|
|
},
|
|
/**
|
|
* The 'in:complete' handler
|
|
* @param {Object} event
|
|
* @param {XMLHttpRequest} xhr
|
|
* @param {Item} item
|
|
* @param {*} response
|
|
* @private
|
|
*/
|
|
_complete: function (event, xhr, item, response) {
|
|
item.uploader.trigger('complete', xhr, item, response);
|
|
item.removeAfterUpload && item.remove();
|
|
}
|
|
};
|
|
|
|
return {
|
|
create: function (params) {
|
|
return new Uploader(params);
|
|
},
|
|
isHTML5: Uploader.prototype.isHTML5
|
|
};
|
|
}])
|
|
|
|
return app;
|
|
})); |