86 lines
2.8 KiB
JavaScript
86 lines
2.8 KiB
JavaScript
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/*
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* HTML5 Sortable jQuery Plugin
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* http://farhadi.ir/projects/html5sortable
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*
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* Copyright 2012, Ali Farhadi
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* Released under the MIT license.
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*/
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(function($) {
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var dragging, placeholders = $();
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$.fn.sortable = function(options) {
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var method = String(options);
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options = $.extend({
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connectWith: false
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}, options);
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return this.each(function() {
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if (/^enable|disable|destroy$/.test(method)) {
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var items = $(this).children($(this).data('items')).attr('draggable', method == 'enable');
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if (method == 'destroy') {
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items.add(this).removeData('connectWith items')
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.off('dragstart.h5s dragend.h5s selectstart.h5s dragover.h5s dragenter.h5s drop.h5s');
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}
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return;
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}
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var isHandle, index, items = $(this).children(options.items);
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var placeholder = $('<' + (/^ul|ol$/i.test(this.tagName) ? 'li' : 'div') + ' class="sortable-placeholder">');
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items.find(options.handle).mousedown(function() {
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isHandle = true;
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}).mouseup(function() {
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isHandle = false;
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});
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$(this).data('items', options.items)
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placeholders = placeholders.add(placeholder);
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if (options.connectWith) {
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$(options.connectWith).add(this).data('connectWith', options.connectWith);
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}
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items.attr('draggable', 'true').on('dragstart.h5s', function(e) {
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if (options.handle && !isHandle) {
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return false;
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}
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isHandle = false;
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var dt = e.originalEvent.dataTransfer;
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dt.effectAllowed = 'move';
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dt.setData('Text', 'dummy');
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index = (dragging = $(this)).addClass('sortable-dragging').index();
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}).on('dragend.h5s', function() {
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if (!dragging) {
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return;
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}
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dragging.removeClass('sortable-dragging').show();
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placeholders.detach();
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if (index != dragging.index()) {
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dragging.parent().trigger('sortupdate', {item: dragging});
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}
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dragging = null;
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}).not('a[href], img').on('selectstart.h5s', function() {
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this.dragDrop && this.dragDrop();
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return false;
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}).end().add([this, placeholder]).on('dragover.h5s dragenter.h5s drop.h5s', function(e) {
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if (!items.is(dragging) && options.connectWith !== $(dragging).parent().data('connectWith')) {
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return true;
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}
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if (e.type == 'drop') {
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e.stopPropagation();
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placeholders.filter(':visible').after(dragging);
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dragging.trigger('dragend.h5s');
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return false;
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}
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e.preventDefault();
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e.originalEvent.dataTransfer.dropEffect = 'move';
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if (items.is(this)) {
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if (options.forcePlaceholderSize) {
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placeholder.height(dragging.outerHeight());
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}
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dragging.hide();
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$(this)[placeholder.index() < $(this).index() ? 'after' : 'before'](placeholder);
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placeholders.not(placeholder).detach();
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} else if (!placeholders.is(this) && !$(this).children(options.items).length) {
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placeholders.detach();
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$(this).append(placeholder);
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}
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return false;
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});
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});
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};
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})(jQuery);
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