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760 lines
30 KiB
JavaScript
760 lines
30 KiB
JavaScript
/*
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* jQuery UI Tag-it!
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*
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* @version v2.0 (06/2011)
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*
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* Copyright 2011, Levy Carneiro Jr.
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* Released under the MIT license.
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* http://aehlke.github.com/tag-it/LICENSE
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*
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* Homepage:
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* http://aehlke.github.com/tag-it/
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*
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* Authors:
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* Levy Carneiro Jr.
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* Martin Rehfeld
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* Tobias Schmidt
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* Skylar Challand
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* Alex Ehlke
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*
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* Maintainer:
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* Alex Ehlke - Twitter: @aehlke
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*
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* Dependencies:
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* jQuery v1.4+
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* jQuery UI v1.8+
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*/
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(function($) {
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$.widget('ui.tagit', {
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options: {
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itemName : 'item',
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fieldName : 'tags',
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availableTags : [],
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tagSource : null,
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removeConfirmation: false,
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caseSensitive : true,
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// When enabled, quotes are not neccesary
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// for inputting multi-word tags.
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allowSpaces: false,
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// The below options are for using a single field instead of several
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// for our form values.
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//
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// When enabled, will use a single hidden field for the form,
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// rather than one per tag. It will delimit tags in the field
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// with singleFieldDelimiter.
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//
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// The easiest way to use singleField is to just instantiate tag-it
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// on an INPUT element, in which case singleField is automatically
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// set to true, and singleFieldNode is set to that element. This
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// way, you don't need to fiddle with these options.
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singleField: false,
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singleFieldDelimiter: ',',
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// Set this to an input DOM node to use an existing form field.
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// Any text in it will be erased on init. But it will be
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// populated with the text of tags as they are created,
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// delimited by singleFieldDelimiter.
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//
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// If this is not set, we create an input node for it,
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// with the name given in settings.fieldName,
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// ignoring settings.itemName.
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singleFieldNode: null,
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// Optionally set a tabindex attribute on the input that gets
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// created for tag-it.
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tabIndex: null,
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// Event callbacks.
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onTagAdded : null,
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onTagRemoved: null,
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onTagClicked: null
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},
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_create: function() {
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// for handling static scoping inside callbacks
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var that = this;
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// There are 2 kinds of DOM nodes this widget can be instantiated on:
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// 1. UL, OL, or some element containing either of these.
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// 2. INPUT, in which case 'singleField' is overridden to true,
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// a UL is created and the INPUT is hidden.
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if (this.element.is('input')) {
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this.tagList = $('<ul></ul>').insertAfter(this.element);
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this.options.singleField = true;
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this.options.singleFieldNode = this.element;
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this.element.css('display', 'none');
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} else {
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this.tagList = this.element.find('ul, ol').andSelf().last();
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}
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this._tagInput = $('<input type="text">').addClass('ui-widget-content');
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if (this.options.tabIndex) {
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this._tagInput.attr('tabindex', this.options.tabIndex);
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}
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this.options.tagSource = this.options.tagSource || function(search, showChoices) {
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var filter = search.term.toLowerCase();
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var choices = $.grep(that.options.availableTags, function(element) {
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// Only match autocomplete options that begin with the search term.
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// (Case insensitive.)
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return (element.toLowerCase().indexOf(filter) === 0);
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});
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showChoices(that._subtractArray(choices, that.assignedTags()));
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};
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this.tagList
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.addClass('tagit')
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.addClass('ui-widget ui-widget-content ui-corner-all')
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// Create the input field.
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.append($('<li class="tagit-new"></li>').append(this._tagInput))
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.click(function(e) {
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var target = $(e.target);
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if (target.hasClass('tagit-label')) {
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that._trigger('onTagClicked', e, target.closest('.tagit-choice'));
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} else {
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// Sets the focus() to the input field, if the user
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// clicks anywhere inside the UL. This is needed
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// because the input field needs to be of a small size.
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that._tagInput.focus();
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}
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});
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// Add existing tags from the list, if any.
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this.tagList.children('li').each(function() {
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if (!$(this).hasClass('tagit-new')) {
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that.createTag($(this).html(), $(this).attr('class'));
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$(this).remove();
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}
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});
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// Single field support.
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if (this.options.singleField) {
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if (this.options.singleFieldNode) {
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// Add existing tags from the input field.
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var node = $(this.options.singleFieldNode);
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var tags = node.val().split(this.options.singleFieldDelimiter);
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node.val('');
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$.each(tags, function(index, tag) {
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that.createTag(tag);
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});
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} else {
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// Create our single field input after our list.
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this.options.singleFieldNode = this.tagList.after('<input type="hidden" style="display:none;" value="" name="' + this.options.fieldName + '">');
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}
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}
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// Events.
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this._tagInput
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.keydown(function(event) {
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// Backspace is not detected within a keypress, so it must use keydown.
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if (event.which == $.ui.keyCode.BACKSPACE && that._tagInput.val() === '') {
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var tag = that._lastTag();
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if (!that.options.removeConfirmation || tag.hasClass('remove')) {
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// When backspace is pressed, the last tag is deleted.
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that.removeTag(tag);
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} else if (that.options.removeConfirmation) {
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tag.addClass('remove ui-state-highlight');
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}
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} else if (that.options.removeConfirmation) {
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that._lastTag().removeClass('remove ui-state-highlight');
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}
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// Comma/Space/Enter are all valid delimiters for new tags,
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// except when there is an open quote or if setting allowSpaces = true.
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// Tab will also create a tag, unless the tag input is empty, in which case it isn't caught.
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if (
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event.which == $.ui.keyCode.COMMA ||
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event.which == $.ui.keyCode.ENTER ||
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(
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event.which == $.ui.keyCode.TAB &&
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that._tagInput.val() !== ''
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) ||
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(
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event.which == $.ui.keyCode.SPACE &&
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that.options.allowSpaces !== true &&
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(
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$.trim(that._tagInput.val()).replace( /^s*/, '' ).charAt(0) != '"' ||
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(
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$.trim(that._tagInput.val()).charAt(0) == '"' &&
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$.trim(that._tagInput.val()).charAt($.trim(that._tagInput.val()).length - 1) == '"' &&
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$.trim(that._tagInput.val()).length - 1 !== 0
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)
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)
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)
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) {
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event.preventDefault();
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that.createTag(that._cleanedInput());
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// The autocomplete doesn't close automatically when TAB is pressed.
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// So let's ensure that it closes.
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that._tagInput.autocomplete('close');
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}
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}).blur(function(e){
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// Create a tag when the element loses focus (unless it's empty).
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that.createTag(that._cleanedInput());
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});
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// Autocomplete.
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if (this.options.availableTags || this.options.tagSource) {
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this._tagInput.autocomplete({
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source: this.options.tagSource,
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select: function(event, ui) {
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// Delete the last tag if we autocomplete something despite the input being empty
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// This happens because the input's blur event causes the tag to be created when
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// the user clicks an autocomplete item.
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// The only artifact of this is that while the user holds down the mouse button
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// on the selected autocomplete item, a tag is shown with the pre-autocompleted text,
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// and is changed to the autocompleted text upon mouseup.
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if (that._tagInput.val() === '') {
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that.removeTag(that._lastTag(), false);
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}
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that.createTag(ui.item.value);
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// Preventing the tag input to be updated with the chosen value.
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return false;
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}
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});
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}
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},
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_cleanedInput: function() {
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// Returns the contents of the tag input, cleaned and ready to be passed to createTag
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return $.trim(this._tagInput.val().replace(/^"(.*)"$/, '$1'));
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},
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_lastTag: function() {
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return this.tagList.children('.tagit-choice:last');
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},
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assignedTags: function() {
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// Returns an array of tag string values
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var that = this;
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var tags = [];
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if (this.options.singleField) {
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tags = $(this.options.singleFieldNode).val().split(this.options.singleFieldDelimiter);
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if (tags[0] === '') {
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tags = [];
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}
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} else {
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this.tagList.children('.tagit-choice').each(function() {
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tags.push(that.tagLabel(this));
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});
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}
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return tags;
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},
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_updateSingleTagsField: function(tags) {
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// Takes a list of tag string values, updates this.options.singleFieldNode.val to the tags delimited by this.options.singleFieldDelimiter
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$(this.options.singleFieldNode).val(tags.join(this.options.singleFieldDelimiter));
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},
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_subtractArray: function(a1, a2) {
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var result = [];
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for (var i = 0; i < a1.length; i++) {
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if ($.inArray(a1[i], a2) == -1) {
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result.push(a1[i]);
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}
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}
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return result;
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},
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tagLabel: function(tag) {
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// Returns the tag's string label.
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if (this.options.singleField) {
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return $(tag).children('.tagit-label').text();
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} else {
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return $(tag).children('input').val();
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}
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},
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_isNew: function(value) {
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var that = this;
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var isNew = true;
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this.tagList.children('.tagit-choice').each(function(i) {
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if (that._formatStr(value) == that._formatStr(that.tagLabel(this))) {
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isNew = false;
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return;
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}
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});
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return isNew;
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},
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_formatStr: function(str) {
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if (this.options.caseSensitive) {
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return str;
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}
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return $.trim(str.toLowerCase());
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},
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createTag: function(value, additionalClass) {
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that = this;
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// Automatically trims the value of leading and trailing whitespace.
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value = $.trim(value);
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if (!this._isNew(value) || value === '') {
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return false;
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}
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var label = $(this.options.onTagClicked ? '<a class="tagit-label"></a>' : '<span class="tagit-label"></span>').text(value);
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// Create tag.
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var tag = $('<li></li>')
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.addClass('tagit-choice ui-widget-content ui-state-default ui-corner-all')
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.addClass(additionalClass)
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.append(label);
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// Button for removing the tag.
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var removeTagIcon = $('<span></span>')
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.addClass('ui-icon ui-icon-close');
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var removeTag = $('<a><span class="text-icon">\xd7</span></a>') // \xd7 is an X
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.addClass('close')
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.append(removeTagIcon)
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.click(function(e) {
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// Removes a tag when the little 'x' is clicked.
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that.removeTag(tag);
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});
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tag.append(removeTag);
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// Unless options.singleField is set, each tag has a hidden input field inline.
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if (this.options.singleField) {
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var tags = this.assignedTags();
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tags.push(value);
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this._updateSingleTagsField(tags);
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} else {
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var escapedValue = label.html();
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tag.append('<input type="hidden" style="display:none;" value="' + escapedValue + '" name="' + this.options.itemName + '[' + this.options.fieldName + '][]">');
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}
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this._trigger('onTagAdded', null, tag);
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// Cleaning the input.
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this._tagInput.val('');
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// insert tag
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this._tagInput.parent().before(tag);
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},
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removeTag: function(tag, animate) {
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if (typeof animate === 'undefined') { animate = true; }
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tag = $(tag);
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this._trigger('onTagRemoved', null, tag);
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if (this.options.singleField) {
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var tags = this.assignedTags();
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var removedTagLabel = this.tagLabel(tag);
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tags = $.grep(tags, function(el){
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return el != removedTagLabel;
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});
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this._updateSingleTagsField(tags);
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}
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// Animate the removal.
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if (animate) {
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tag.fadeOut('fast').hide('blind', {direction: 'horizontal'}, 'fast', function(){
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tag.remove();
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}).dequeue();
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} else {
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tag.remove();
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}
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},
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removeAll: function() {
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// Removes all tags. Takes an optional `animate` argument.
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var that = this;
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this.tagList.children('.tagit-choice').each(function(index, tag) {
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that.removeTag(tag, false);
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});
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}
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});
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})(jQuery);
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/*
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* jQuery UI Tag-it!
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|
*
|
|
* @version v2.0 (06/2011)
|
|
*
|
|
* Copyright 2011, Levy Carneiro Jr.
|
|
* Released under the MIT license.
|
|
* http://aehlke.github.com/tag-it/LICENSE
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|
*
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|
* Homepage:
|
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* http://aehlke.github.com/tag-it/
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*
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* Authors:
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* Levy Carneiro Jr.
|
|
* Martin Rehfeld
|
|
* Tobias Schmidt
|
|
* Skylar Challand
|
|
* Alex Ehlke
|
|
*
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|
* Maintainer:
|
|
* Alex Ehlke - Twitter: @aehlke
|
|
*
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|
* Dependencies:
|
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* jQuery v1.4+
|
|
* jQuery UI v1.8+
|
|
*/
|
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(function($) {
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$.widget('ui.tagit', {
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options: {
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itemName : 'item',
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fieldName : 'tags',
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availableTags : [],
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tagSource : null,
|
|
removeConfirmation: false,
|
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caseSensitive : true,
|
|
|
|
// When enabled, quotes are not neccesary
|
|
// for inputting multi-word tags.
|
|
allowSpaces: false,
|
|
|
|
// The below options are for using a single field instead of several
|
|
// for our form values.
|
|
//
|
|
// When enabled, will use a single hidden field for the form,
|
|
// rather than one per tag. It will delimit tags in the field
|
|
// with singleFieldDelimiter.
|
|
//
|
|
// The easiest way to use singleField is to just instantiate tag-it
|
|
// on an INPUT element, in which case singleField is automatically
|
|
// set to true, and singleFieldNode is set to that element. This
|
|
// way, you don't need to fiddle with these options.
|
|
singleField: false,
|
|
|
|
singleFieldDelimiter: ',',
|
|
|
|
// Set this to an input DOM node to use an existing form field.
|
|
// Any text in it will be erased on init. But it will be
|
|
// populated with the text of tags as they are created,
|
|
// delimited by singleFieldDelimiter.
|
|
//
|
|
// If this is not set, we create an input node for it,
|
|
// with the name given in settings.fieldName,
|
|
// ignoring settings.itemName.
|
|
singleFieldNode: null,
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|
|
|
// Optionally set a tabindex attribute on the input that gets
|
|
// created for tag-it.
|
|
tabIndex: null,
|
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|
|
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// Event callbacks.
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onTagAdded : null,
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|
onTagRemoved: null,
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onTagClicked: null
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},
|
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|
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_create: function() {
|
|
// for handling static scoping inside callbacks
|
|
var that = this;
|
|
|
|
// There are 2 kinds of DOM nodes this widget can be instantiated on:
|
|
// 1. UL, OL, or some element containing either of these.
|
|
// 2. INPUT, in which case 'singleField' is overridden to true,
|
|
// a UL is created and the INPUT is hidden.
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|
if (this.element.is('input')) {
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this.tagList = $('<ul></ul>').insertAfter(this.element);
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this.options.singleField = true;
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this.options.singleFieldNode = this.element;
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this.element.css('display', 'none');
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} else {
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this.tagList = this.element.find('ul, ol').andSelf().last();
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}
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this._tagInput = $('<input type="text">').addClass('ui-widget-content');
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if (this.options.tabIndex) {
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this._tagInput.attr('tabindex', this.options.tabIndex);
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}
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this.options.tagSource = this.options.tagSource || function(search, showChoices) {
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var filter = search.term.toLowerCase();
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var choices = $.grep(that.options.availableTags, function(element) {
|
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// Only match autocomplete options that begin with the search term.
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// (Case insensitive.)
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return (element.toLowerCase().indexOf(filter) === 0);
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});
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showChoices(that._subtractArray(choices, that.assignedTags()));
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};
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this.tagList
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.addClass('tagit')
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.addClass('ui-widget ui-widget-content ui-corner-all')
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// Create the input field.
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.append($('<li class="tagit-new"></li>').append(this._tagInput))
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.click(function(e) {
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var target = $(e.target);
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if (target.hasClass('tagit-label')) {
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that._trigger('onTagClicked', e, target.closest('.tagit-choice'));
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} else {
|
|
// Sets the focus() to the input field, if the user
|
|
// clicks anywhere inside the UL. This is needed
|
|
// because the input field needs to be of a small size.
|
|
that._tagInput.focus();
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|
}
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});
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// Add existing tags from the list, if any.
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this.tagList.children('li').each(function() {
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if (!$(this).hasClass('tagit-new')) {
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that.createTag($(this).html(), $(this).attr('class'));
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$(this).remove();
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}
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});
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// Single field support.
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|
if (this.options.singleField) {
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if (this.options.singleFieldNode) {
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// Add existing tags from the input field.
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var node = $(this.options.singleFieldNode);
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var tags = node.val().split(this.options.singleFieldDelimiter);
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node.val('');
|
|
$.each(tags, function(index, tag) {
|
|
that.createTag(tag);
|
|
});
|
|
} else {
|
|
// Create our single field input after our list.
|
|
this.options.singleFieldNode = this.tagList.after('<input type="hidden" style="display:none;" value="" name="' + this.options.fieldName + '">');
|
|
}
|
|
}
|
|
|
|
// Events.
|
|
this._tagInput
|
|
.keydown(function(event) {
|
|
// Backspace is not detected within a keypress, so it must use keydown.
|
|
if (event.which == $.ui.keyCode.BACKSPACE && that._tagInput.val() === '') {
|
|
var tag = that._lastTag();
|
|
if (!that.options.removeConfirmation || tag.hasClass('remove')) {
|
|
// When backspace is pressed, the last tag is deleted.
|
|
that.removeTag(tag);
|
|
} else if (that.options.removeConfirmation) {
|
|
tag.addClass('remove ui-state-highlight');
|
|
}
|
|
} else if (that.options.removeConfirmation) {
|
|
that._lastTag().removeClass('remove ui-state-highlight');
|
|
}
|
|
|
|
// Comma/Space/Enter are all valid delimiters for new tags,
|
|
// except when there is an open quote or if setting allowSpaces = true.
|
|
// Tab will also create a tag, unless the tag input is empty, in which case it isn't caught.
|
|
if (
|
|
event.which == $.ui.keyCode.COMMA ||
|
|
event.which == $.ui.keyCode.ENTER ||
|
|
(
|
|
event.which == $.ui.keyCode.TAB &&
|
|
that._tagInput.val() !== ''
|
|
) ||
|
|
(
|
|
event.which == $.ui.keyCode.SPACE &&
|
|
that.options.allowSpaces !== true &&
|
|
(
|
|
$.trim(that._tagInput.val()).replace( /^s*/, '' ).charAt(0) != '"' ||
|
|
(
|
|
$.trim(that._tagInput.val()).charAt(0) == '"' &&
|
|
$.trim(that._tagInput.val()).charAt($.trim(that._tagInput.val()).length - 1) == '"' &&
|
|
$.trim(that._tagInput.val()).length - 1 !== 0
|
|
)
|
|
)
|
|
)
|
|
) {
|
|
event.preventDefault();
|
|
that.createTag(that._cleanedInput());
|
|
|
|
// The autocomplete doesn't close automatically when TAB is pressed.
|
|
// So let's ensure that it closes.
|
|
that._tagInput.autocomplete('close');
|
|
}
|
|
}).blur(function(e){
|
|
// Create a tag when the element loses focus (unless it's empty).
|
|
that.createTag(that._cleanedInput());
|
|
});
|
|
|
|
|
|
// Autocomplete.
|
|
if (this.options.availableTags || this.options.tagSource) {
|
|
this._tagInput.autocomplete({
|
|
source: this.options.tagSource,
|
|
select: function(event, ui) {
|
|
// Delete the last tag if we autocomplete something despite the input being empty
|
|
// This happens because the input's blur event causes the tag to be created when
|
|
// the user clicks an autocomplete item.
|
|
// The only artifact of this is that while the user holds down the mouse button
|
|
// on the selected autocomplete item, a tag is shown with the pre-autocompleted text,
|
|
// and is changed to the autocompleted text upon mouseup.
|
|
if (that._tagInput.val() === '') {
|
|
that.removeTag(that._lastTag(), false);
|
|
}
|
|
that.createTag(ui.item.value);
|
|
// Preventing the tag input to be updated with the chosen value.
|
|
return false;
|
|
}
|
|
});
|
|
}
|
|
},
|
|
|
|
_cleanedInput: function() {
|
|
// Returns the contents of the tag input, cleaned and ready to be passed to createTag
|
|
return $.trim(this._tagInput.val().replace(/^"(.*)"$/, '$1'));
|
|
},
|
|
|
|
_lastTag: function() {
|
|
return this.tagList.children('.tagit-choice:last');
|
|
},
|
|
|
|
assignedTags: function() {
|
|
// Returns an array of tag string values
|
|
var that = this;
|
|
var tags = [];
|
|
if (this.options.singleField) {
|
|
tags = $(this.options.singleFieldNode).val().split(this.options.singleFieldDelimiter);
|
|
if (tags[0] === '') {
|
|
tags = [];
|
|
}
|
|
} else {
|
|
this.tagList.children('.tagit-choice').each(function() {
|
|
tags.push(that.tagLabel(this));
|
|
});
|
|
}
|
|
return tags;
|
|
},
|
|
|
|
_updateSingleTagsField: function(tags) {
|
|
// Takes a list of tag string values, updates this.options.singleFieldNode.val to the tags delimited by this.options.singleFieldDelimiter
|
|
$(this.options.singleFieldNode).val(tags.join(this.options.singleFieldDelimiter));
|
|
},
|
|
|
|
_subtractArray: function(a1, a2) {
|
|
var result = [];
|
|
for (var i = 0; i < a1.length; i++) {
|
|
if ($.inArray(a1[i], a2) == -1) {
|
|
result.push(a1[i]);
|
|
}
|
|
}
|
|
return result;
|
|
},
|
|
|
|
tagLabel: function(tag) {
|
|
// Returns the tag's string label.
|
|
if (this.options.singleField) {
|
|
return $(tag).children('.tagit-label').text();
|
|
} else {
|
|
return $(tag).children('input').val();
|
|
}
|
|
},
|
|
|
|
_isNew: function(value) {
|
|
var that = this;
|
|
var isNew = true;
|
|
this.tagList.children('.tagit-choice').each(function(i) {
|
|
if (that._formatStr(value) == that._formatStr(that.tagLabel(this))) {
|
|
isNew = false;
|
|
return;
|
|
}
|
|
});
|
|
return isNew;
|
|
},
|
|
|
|
_formatStr: function(str) {
|
|
if (this.options.caseSensitive) {
|
|
return str;
|
|
}
|
|
return $.trim(str.toLowerCase());
|
|
},
|
|
|
|
createTag: function(value, additionalClass) {
|
|
that = this;
|
|
// Automatically trims the value of leading and trailing whitespace.
|
|
value = $.trim(value);
|
|
|
|
if (!this._isNew(value) || value === '') {
|
|
return false;
|
|
}
|
|
|
|
var label = $(this.options.onTagClicked ? '<a class="tagit-label"></a>' : '<span class="tagit-label"></span>').text(value);
|
|
|
|
// Create tag.
|
|
var tag = $('<li></li>')
|
|
.addClass('tagit-choice ui-widget-content ui-state-default ui-corner-all')
|
|
.addClass(additionalClass)
|
|
.append(label);
|
|
|
|
// Button for removing the tag.
|
|
var removeTagIcon = $('<span></span>')
|
|
.addClass('ui-icon ui-icon-close');
|
|
var removeTag = $('<a><span class="text-icon">\xd7</span></a>') // \xd7 is an X
|
|
.addClass('close')
|
|
.append(removeTagIcon)
|
|
.click(function(e) {
|
|
// Removes a tag when the little 'x' is clicked.
|
|
that.removeTag(tag);
|
|
});
|
|
tag.append(removeTag);
|
|
|
|
// Unless options.singleField is set, each tag has a hidden input field inline.
|
|
if (this.options.singleField) {
|
|
var tags = this.assignedTags();
|
|
tags.push(value);
|
|
this._updateSingleTagsField(tags);
|
|
} else {
|
|
var escapedValue = label.html();
|
|
tag.append('<input type="hidden" style="display:none;" value="' + escapedValue + '" name="' + this.options.itemName + '[' + this.options.fieldName + '][]">');
|
|
}
|
|
|
|
this._trigger('onTagAdded', null, tag);
|
|
|
|
// Cleaning the input.
|
|
this._tagInput.val('');
|
|
|
|
// insert tag
|
|
this._tagInput.parent().before(tag);
|
|
},
|
|
|
|
removeTag: function(tag, animate) {
|
|
if (typeof animate === 'undefined') { animate = true; }
|
|
|
|
tag = $(tag);
|
|
|
|
if (this.options.singleField) {
|
|
var tags = this.assignedTags();
|
|
var removedTagLabel = this.tagLabel(tag);
|
|
tags = $.grep(tags, function(el){
|
|
return el != removedTagLabel;
|
|
});
|
|
this._updateSingleTagsField(tags);
|
|
}
|
|
// Animate the removal.
|
|
if (animate) {
|
|
tag.fadeOut('fast').hide('blind', {direction: 'horizontal'}, 'fast', function(){
|
|
tag.remove();
|
|
}).dequeue();
|
|
} else {
|
|
tag.remove();
|
|
}
|
|
this._trigger('onTagRemoved', null, tag);
|
|
|
|
},
|
|
|
|
removeAll: function() {
|
|
// Removes all tags. Takes an optional `animate` argument.
|
|
var that = this;
|
|
this.tagList.children('.tagit-choice').each(function(index, tag) {
|
|
that.removeTag(tag, false);
|
|
});
|
|
}
|
|
|
|
});
|
|
|
|
})(jQuery);
|
|
|