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-rw-r--r--data/js/uploader.js132
1 files changed, 132 insertions, 0 deletions
diff --git a/data/js/uploader.js b/data/js/uploader.js
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+++ b/data/js/uploader.js
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+(function () {
+'use strict';
+define(['jquery'], function ($) {
+ var ui = {
+ uploadButton: '#upload_button',
+ uploadInputs: 'input.file-upload',
+ textAreas: '#textboxes textarea.text-upload',
+ filenameInputs: '#textboxes input[name^=filename]',
+ textAreaTabsContainer: '#textboxes .tab-content',
+ textAreaTabs: '#textboxes .tab-content .tab-pane',
+ tabNavigation: '#textboxes ul.nav',
+ tabPane: '.tab-pane',
+ panelBody: '.panel-body'
+ };
+ var PrivateFunctions = {
+ filesForInput: function (input, callback) {
+ var files = $(input).prop('files');
+ for (var i = 0; i < files.length; i++) {
+ callback(files[i]);
+ }
+ },
+
+ filesForInputs: function (callback) {
+ _.each($(ui.uploadInputs), function (input) {
+ this.filesForInput(input, callback);
+ }, this);
+ },
+
+ checkFileUpload: function (event) {
+ var totalSize = 0;
+ var filesCount = 0;
+ this.filesForInputs(function (file) {
+ filesCount++;
+ totalSize += file.size;
+ });
+
+ var uploadButton = $(ui.uploadButton);
+ if (filesCount > appConfig.maxFilesPerUpload) {
+ uploadButton.html('Too many files').attr('disabled', true);
+ } else if (totalSize > appConfig.maxUploadSize) {
+ uploadButton.html('File(s) too big').attr('disabled', true);
+ } else {
+ uploadButton.html('Upload/Paste it!').attr('disabled', false);
+ }
+ },
+
+ hasNoFiles: function (input) {
+ return $(input).prop('files').length === 0;
+ },
+
+ appendUploadInput: function (event) {
+ if (_.any($(ui.uploadInputs), this.hasNoFiles)) { return; }
+ $(event.target).parent().append($(event.target).clone(), $('<br>'));
+ },
+
+ hasNoText: function (textArea) {
+ return !$(textArea).val();
+ },
+
+ setAttributeIndices: function (tab, index) {
+ tab.attr('id', tab.attr('id').replace(/\d+$/, index));
+ _.each(tab.find('input,textarea'), function (input) {
+ var name = $(input).attr('name');
+ $(input).attr('name', name.replace(/\[\d+\]/, '[' + index + ']'));
+ });
+ },
+
+ clearValues: function (tab) {
+ tab.find('input,textarea').val('');
+ },
+
+ tabNavigationItem: function (index) {
+ var link = $('<a data-toggle="tab">').attr({
+ href: '#text-upload-tab-' + index,
+ }).html('Paste ' + index);
+
+ return $('<li>').append(link);
+ },
+
+ appendTextField: function (event) {
+ if (_.any($(ui.textAreas), this.hasNoText)) { return; }
+
+ var newTab = $(ui.textAreaTabs).last().clone();
+ var index = parseInt(newTab.attr('id').match(/\d+$/)[0]) + 1;
+ this.setAttributeIndices(newTab, index);
+ this.clearValues(newTab);
+ newTab.toggleClass('active', false);
+ $(ui.textAreaTabsContainer).append(newTab);
+ $(ui.tabNavigation).append(this.tabNavigationItem(index));
+ },
+
+ setTabHeader: function (event) {
+ var name = $(event.target).val();
+ if (_.isEmpty(name)) {
+ var tabPane = $(event.target).closest(ui.tabPane);
+ var index = tabPane.attr('id').match(/\d+$/)[0];
+ name = 'Paste ' + index;
+ }
+ $(ui.tabNavigation).find('li.active a').html(name);
+ },
+
+ setupEvents: function () {
+ if (window.File && window.FileList) {
+ $(document).on(
+ 'change', ui.uploadInputs,
+ _.bind(this.checkFileUpload, this)
+ );
+ }
+ $(document).on(
+ 'change', ui.uploadInputs,
+ _.bind(this.appendUploadInput, this)
+ );
+ $(document).on(
+ 'input propertychange', ui.textAreas,
+ _.bind(this.appendTextField, this)
+ );
+ $(document).on(
+ 'input propertychange', ui.filenameInputs,
+ _.bind(this.setTabHeader, this)
+ );
+ }
+ };
+
+ var Uploader = {
+ initialize: function () {
+ PrivateFunctions.setupEvents();
+ }
+ };
+
+ return Uploader;
+});
+})();