bootstrap-treeview 拖拽
/* ========================================================= * bootstrap-treeview.js v1.2.0 * ========================================================= * Copyright 2013 Jonathan Miles * Project URL : http://www.jondmiles.com/bootstrap-treeview * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ========================================================= */ ; (function ($, window, document, undefined) { /*global jQuery, console*/ 'use strict'; var pluginName = 'treeview'; var _default = {}; _default.settings = { injectStyle: true, levels: 2, expandIcon: 'glyphicon glyphicon-plus', collapseIcon: 'glyphicon glyphicon-minus', emptyIcon: 'glyphicon', nodeIcon: '', selectedIcon: '', checkedIcon: 'glyphicon glyphicon-check', uncheckedIcon: 'glyphicon glyphicon-unchecked', color: undefined, // '#000000', backColor: undefined, // '#FFFFFF', borderColor: undefined, // '#dddddd', onhoverColor: '#F5F5F5', selectedColor: '#FFFFFF', selectedBackColor: '#428bca', searchResultColor: '#D9534F', searchResultBackColor: undefined, //'#FFFFFF', enableLinks: false, highlightSelected: true, highlightSearchResults: true, showBorder: true, showIcon: true, showCheckbox: false, showTags: false, multiSelect: false, // Event handlers onNodeChecked: undefined, onNodeCollapsed: undefined, onNodeDisabled: undefined, onNodeEnabled: undefined, onNodeExpanded: undefined, onNodeSelected: undefined, onNodeUnchecked: undefined, onNodeUnselected: undefined, onSearchComplete: undefined, onSearchCleared: undefined, onDragStart: undefined }; _default.options = { silent: false, ignoreChildren: false }; _default.searchOptions = { ignoreCase: true, exactMatch: false, revealResults: true }; var Tree = function (element, options) { this.$element = $(element); this.elementId = element.id; this.styleId = this.elementId + '-style'; this.init(options); return { // Options (public access) options: this.options, // Initialize / destroy methods init: $.proxy(this.init, this), remove: $.proxy(this.remove, this), // Get methods getNode: $.proxy(this.getNode, this), getParent: $.proxy(this.getParent, this), getSiblings: $.proxy(this.getSiblings, this), getSelected: $.proxy(this.getSelected, this), getUnselected: $.proxy(this.getUnselected, this), getExpanded: $.proxy(this.getExpanded, this), getCollapsed: $.proxy(this.getCollapsed, this), getChecked: $.proxy(this.getChecked, this), getUnchecked: $.proxy(this.getUnchecked, this), getDisabled: $.proxy(this.getDisabled, this), getEnabled: $.proxy(this.getEnabled, this), // Select methods selectNode: $.proxy(this.selectNode, this), unselectNode: $.proxy(this.unselectNode, this), toggleNodeSelected: $.proxy(this.toggleNodeSelected, this), // Expand / collapse methods collapseAll: $.proxy(this.collapseAll, this), collapseNode: $.proxy(this.collapseNode, this), expandAll: $.proxy(this.expandAll, this), expandNode: $.proxy(this.expandNode, this), toggleNodeExpanded: $.proxy(this.toggleNodeExpanded, this), revealNode: $.proxy(this.revealNode, this), // Expand / collapse methods checkAll: $.proxy(this.checkAll, this), checkNode: $.proxy(this.checkNode, this), uncheckAll: $.proxy(this.uncheckAll, this), uncheckNode: $.proxy(this.uncheckNode, this), toggleNodeChecked: $.proxy(this.toggleNodeChecked, this), // Disable / enable methods disableAll: $.proxy(this.disableAll, this), disableNode: $.proxy(this.disableNode, this), enableAll: $.proxy(this.enableAll, this), enableNode: $.proxy(this.enableNode, this), toggleNodeDisabled: $.proxy(this.toggleNodeDisabled, this), // Search methods search: $.proxy(this.search, this), clearSearch: $.proxy(this.clearSearch, this) }; }; Tree.prototype.init = function (options) { this.tree = []; this.nodes = []; if (options.data) { if (typeof options.data === 'string') { options.data = $.parseJSON(options.data); } this.tree = $.extend(true, [], options.data); delete options.data; } this.options = $.extend({}, _default.settings, options); this.destroy(); this.subscribeEvents(); this.setInitialStates({ nodes: this.tree }, 0); this.render(); }; Tree.prototype.remove = function () { this.destroy(); $.removeData(this, pluginName); $('#' + this.styleId).remove(); }; Tree.prototype.destroy = function () { if (!this.initialized) return; this.$wrapper.remove(); this.$wrapper = null; // Switch off events this.unsubscribeEvents(); // Reset this.initialized flag this.initialized = false; }; Tree.prototype.unsubscribeEvents = function () { this.$element.off('click'); this.$element.off('nodeChecked'); this.$element.off('nodeCollapsed'); this.$element.off('nodeDisabled'); this.$element.off('nodeEnabled'); this.$element.off('nodeExpanded'); this.$element.off('nodeSelected'); this.$element.off('nodeUnchecked'); this.$element.off('nodeUnselected'); this.$element.off('searchComplete'); this.$element.off('searchCleared'); }; Tree.prototype.subscribeEvents = function () { this.unsubscribeEvents(); this.$element.on('click', $.proxy(this.clickHandler, this)); if (typeof (this.options.onNodeChecked) === 'function') { this.$element.on('nodeChecked', this.options.onNodeChecked); } if (typeof (this.options.onNodeCollapsed) === 'function') { this.$element.on('nodeCollapsed', this.options.onNodeCollapsed); } if (typeof (this.options.onNodeDisabled) === 'function') { this.$element.on('nodeDisabled', this.options.onNodeDisabled); } if (typeof (this.options.onNodeEnabled) === 'function') { this.$element.on('nodeEnabled', this.options.onNodeEnabled); } if (typeof (this.options.onNodeExpanded) === 'function') { this.$element.on('nodeExpanded', this.options.onNodeExpanded); } if (typeof (this.options.onNodeSelected) === 'function') { this.$element.on('nodeSelected', this.options.onNodeSelected); } if (typeof (this.options.onNodeUnchecked) === 'function') { this.$element.on('nodeUnchecked', this.options.onNodeUnchecked); } if (typeof (this.options.onNodeUnselected) === 'function') { this.$element.on('nodeUnselected', this.options.onNodeUnselected); } if (typeof (this.options.onSearchComplete) === 'function') { this.$element.on('searchComplete', this.options.onSearchComplete); } if (typeof (this.options.onSearchCleared) === 'function') { this.$element.on('searchCleared', this.options.onSearchCleared); } }; /* Recurse the tree structure and ensure all nodes have valid initial states. User defined states will be preserved. For performance we also take this opportunity to index nodes in a flattened structure */ Tree.prototype.setInitialStates = function (node, level) { if (!node.nodes) return; level += 1; var parent = node; var _this = this; $.each(node.nodes, function checkStates(index, node) { // nodeId : unique, incremental identifier node.nodeId = _this.nodes.length; // parentId : transversing up the tree node.parentId = parent.nodeId; // if not provided set selectable default value if (!node.hasOwnProperty('selectable')) { node.selectable = true; } // where provided we should preserve states node.state = node.state || {}; // set checked state; unless set always false if (!node.state.hasOwnProperty('checked')) { node.state.checked = false; } // set enabled state; unless set always false if (!node.state.hasOwnProperty('disabled')) { node.state.disabled = false; } // set expanded state; if not provided based on levels if (!node.state.hasOwnProperty('expanded')) { if (!node.state.disabled && (level < _this.options.levels) && (node.nodes && node.nodes.length > 0)) { node.state.expanded = true; } else { node.state.expanded = false; } } // set selected state; unless set always false if (!node.state.hasOwnProperty('selected')) { node.state.selected = false; } // index nodes in a flattened structure for use later _this.nodes.push(node); // recurse child nodes and transverse the tree if (node.nodes) { _this.setInitialStates(node, level); } }); }; Tree.prototype.clickHandler = function (event) { if (!this.options.enableLinks) event.preventDefault(); var target = $(event.target); var node = this.findNode(target); if (!node || node.state.disabled) return; var classList = target.attr('class') ? target.attr('class').split(' ') : []; if ((classList.indexOf('expand-icon') !== -1)) { this.toggleExpandedState(node, _default.options); this.render(); } else if ((classList.indexOf('check-icon') !== -1)) { this.toggleCheckedState(node, _default.options); this.render(); } else { if (node.selectable) { this.toggleSelectedState(node, _default.options); } else { this.toggleExpandedState(node, _default.options); } this.render(); } }; // Looks up the DOM for the closest parent list item to retrieve the // data attribute nodeid, which is used to lookup the node in the flattened structure. Tree.prototype.findNode = function (target) { var nodeId = target.closest('li.list-group-item').attr('data-nodeid'); var node = this.nodes[nodeId]; if (!node) { console.log('Error: node does not exist'); } return node; }; Tree.prototype.toggleExpandedState = function (node, options) { if (!node) return; this.setExpandedState(node, !node.state.expanded, options); }; Tree.prototype.setExpandedState = function (node, state, options) { if (state === node.state.expanded) return; if (state && node.nodes) { // Expand a node node.state.expanded = true; if (!options.silent) { this.$element.trigger('nodeExpanded', $.extend(true, {}, node)); } } else if (!state) { // Collapse a node node.state.expanded = false; if (!options.silent) { this.$element.trigger('nodeCollapsed', $.extend(true, {}, node)); } // Collapse child nodes if (node.nodes && !options.ignoreChildren) { $.each(node.nodes, $.proxy(function (index, node) { this.setExpandedState(node, false, options); }, this)); } } }; Tree.prototype.toggleSelectedState = function (node, options) { if (!node) return; this.setSelectedState(node, !node.state.selected, options); }; Tree.prototype.setSelectedState = function (node, state, options) { if (state === node.state.selected) return; if (state) { // If multiSelect false, unselect previously selected if (!this.options.multiSelect) { $.each(this.findNodes('true', 'g', 'state.selected'), $.proxy(function (index, node) { this.setSelectedState(node, false, options); }, this)); } // Continue selecting node node.state.selected = true; if (!options.silent) { this.$element.trigger('nodeSelected', $.extend(true, {}, node)); } } else { // Unselect node node.state.selected = false; if (!options.silent) { this.$element.trigger('nodeUnselected', $.extend(true, {}, node)); } } }; Tree.prototype.toggleCheckedState = function (node, options) { if (!node) return; this.setCheckedState(node, !node.state.checked, options); }; Tree.prototype.setCheckedState = function (node, state, options) { if (state === node.state.checked) return; if (state) { // Check node node.state.checked = true; if (!options.silent) { this.$element.trigger('nodeChecked', $.extend(true, {}, node)); } } else { // Uncheck node node.state.checked = false; if (!options.silent) { this.$element.trigger('nodeUnchecked', $.extend(true, {}, node)); } } }; Tree.prototype.setDisabledState = function (node, state, options) { if (state === node.state.disabled) return; if (state) { // Disable node node.state.disabled = true; // Disable all other states this.setExpandedState(node, false, options); this.setSelectedState(node, false, options); this.setCheckedState(node, false, options); if (!options.silent) { this.$element.trigger('nodeDisabled', $.extend(true, {}, node)); } } else { // Enabled node node.state.disabled = false; if (!options.silent) { this.$element.trigger('nodeEnabled', $.extend(true, {}, node)); } } }; Tree.prototype.render = function () { if (!this.initialized) { // Setup first time only components this.$element.addClass(pluginName); this.$wrapper = $(this.template.list); this.injectStyle(); this.initialized = true; } this.$element.empty().append(this.$wrapper.empty()); // Build tree this.buildTree(this.tree, 0); }; // Starting from the root node, and recursing down the // structure we build the tree one node at a time Tree.prototype.buildTree = function (nodes, level) { if (!nodes) return; level += 1; var _this = this; $.each(nodes, function addNodes(id, node) { var treeItem = $(_this.template.item) .addClass('node-' + _this.elementId) .addClass(node.state.checked ? 'node-checked' : '') .addClass(node.state.disabled ? 'node-disabled' : '') .addClass(node.state.selected ? 'node-selected' : '') .addClass(node.searchResult ? 'search-result' : '') .attr('data-nodeid', node.nodeId) // .attr('data-parent-code', node.parentCode) // 这个是当前节点的父级节点的code，主要是为了实现父级拖拽的时候可以把子级同时移动 gz。 .attr('data-level', node.dataLevel) // 这个是当前节点的层级数据，之前有就可以不写 gz。 .attr('draggable', true) // 激发拖拽 gz .attr("ondrop", "drop(event)") // 结束拖拽 gz .attr("ondragover", "allowDrop(event)") // 拖拽中 gz .attr("ondragstart", "drag(event)") // 目标开始拖拽事件 gz .attr("ondragenter", "dragEnter(event)") //当拖拽对象进入投放区时触发 .attr("ondragleave", "dragLeave(event)") //元素被拖出了投放区时触发 .attr('style', _this.buildStyleOverride(node)); // Add indent/spacer to mimic tree structure for (var i = 0; i < (level - 1); i++) { treeItem.append(_this.template.indent); } // Add expand, collapse or empty spacer icons var classList = []; if (node.nodes) { classList.push('expand-icon'); if (node.state.expanded) { classList.push(_this.options.collapseIcon); } else { classList.push(_this.options.expandIcon); } } else { classList.push(_this.options.emptyIcon); } treeItem .append($(_this.template.icon) .addClass(classList.join(' ')) ); // Add node icon if (_this.options.showIcon) { var classList = ['node-icon']; classList.push(node.icon || _this.options.nodeIcon); if (node.state.selected) { classList.pop(); classList.push(node.selectedIcon || _this.options.selectedIcon || node.icon || _this.options.nodeIcon); } treeItem .append($(_this.template.icon) .addClass(classList.join(' ')) ); } // Add check / unchecked icon if (_this.options.showCheckbox) { var classList = ['check-icon']; if (node.state.checked) { classList.push(_this.options.checkedIcon); } else { classList.push(_this.options.uncheckedIcon); } treeItem .append($(_this.template.icon) .addClass(classList.join(' ')) ); } // Add text if (_this.options.enableLinks) { // Add hyperlink treeItem .append($(_this.template.link) .attr('href', node.href) .append(node.text) ); } else { // otherwise just text treeItem .append(node.text); } // Add tags as badges if (_this.options.showTags && node.tags) { $.each(node.tags, function addTag(id, tag) { treeItem .append($(_this.template.badge) .append(tag) ); }); } // Add item to the tree _this.$wrapper.append(treeItem); // Recursively add child ndoes if (node.nodes && node.state.expanded && !node.state.disabled) { return _this.buildTree(node.nodes, level); } }); }; // Define any node level style override for // 1. selectedNode // 2. node|data assigned color overrides Tree.prototype.buildStyleOverride = function (node) { if (node.state.disabled) return ''; var color = node.color; var backColor = node.backColor; if (this.options.highlightSelected && node.state.selected) { if (this.options.selectedColor) { color = this.options.selectedColor; } if (this.options.selectedBackColor) { backColor = this.options.selectedBackColor; } } if (this.options.highlightSearchResults && node.searchResult && !node.state.disabled) { if (this.options.searchResultColor) { color = this.options.searchResultColor; } if (this.options.searchResultBackColor) { backColor = this.options.searchResultBackColor; } } return 'color:' + color + ';background-color:' + backColor + ';'; }; // Add inline style into head Tree.prototype.injectStyle = function () { if (this.options.injectStyle && !document.getElementById(this.styleId)) { $('<style type="text/css" id="' + this.styleId + '"> ' + this.buildStyle() + ' </style>').appendTo('head'); } }; // Construct trees style based on user options Tree.prototype.buildStyle = function () { var style = '.node-' + this.elementId + '{'; if (this.options.color) { style += 'color:' + this.options.color + ';'; } if (this.options.backColor) { style += 'background-color:' + this.options.backColor + ';'; } if (!this.options.showBorder) { style += 'border:none;'; } else if (this.options.borderColor) { style += 'border:1px solid ' + this.options.borderColor + ';'; } style += '}'; if (this.options.onhoverColor) { style += '.node-' + this.elementId + ':not(.node-disabled):hover{' + 'background-color:' + this.options.onhoverColor + ';' + '}'; } return this.css + style; }; Tree.prototype.template = { list: '<ul class="list-group"></ul>', item: '<li class="list-group-item"></li>', indent: '<span class="indent"></span>', icon: '<span class="icon"></span>', link: '<a href="#" style="color:inherit;"></a>', badge: '<span class="badge"></span>' }; Tree.prototype.css = '.treeview .list-group-item{cursor:pointer}.treeview span.indent{margin-left:10px;margin-right:10px}.treeview span.icon{width:12px;margin-right:5px}.treeview .node-disabled{color:silver;cursor:not-allowed}' /** Returns a single node object that matches the given node id. @param {Number} nodeId - A node's unique identifier @return {Object} node - Matching node */ Tree.prototype.getNode = function (nodeId) { return this.nodes[nodeId]; }; /** Returns the parent node of a given node, if valid otherwise returns undefined. @param {Object|Number} identifier - A valid node or node id @returns {Object} node - The parent node */ Tree.prototype.getParent = function (identifier) { var node = this.identifyNode(identifier); return this.nodes[node.parentId]; }; /** Returns an array of sibling nodes for a given node, if valid otherwise returns undefined. @param {Object|Number} identifier - A valid node or node id @returns {Array} nodes - Sibling nodes */ Tree.prototype.getSiblings = function (identifier) { var node = this.identifyNode(identifier); var parent = this.getParent(node); var nodes = parent ? parent.nodes : this.tree; return nodes.filter(function (obj) { return obj.nodeId !== node.nodeId; }); }; /** Returns an array of selected nodes. @returns {Array} nodes - Selected nodes */ Tree.prototype.getSelected = function () { return this.findNodes('true', 'g', 'state.selected'); }; /** Returns an array of unselected nodes. @returns {Array} nodes - Unselected nodes */ Tree.prototype.getUnselected = function () { return this.findNodes('false', 'g', 'state.selected'); }; /** Returns an array of expanded nodes. @returns {Array} nodes - Expanded nodes */ Tree.prototype.getExpanded = function () { return this.findNodes('true', 'g', 'state.expanded'); }; /** Returns an array of collapsed nodes. @returns {Array} nodes - Collapsed nodes */ Tree.prototype.getCollapsed = function () { return this.findNodes('false', 'g', 'state.expanded'); }; /** Returns an array of checked nodes. @returns {Array} nodes - Checked nodes */ Tree.prototype.getChecked = function () { return this.findNodes('true', 'g', 'state.checked'); }; /** Returns an array of unchecked nodes. @returns {Array} nodes - Unchecked nodes */ Tree.prototype.getUnchecked = function () { return this.findNodes('false', 'g', 'state.checked'); }; /** Returns an array of disabled nodes. @returns {Array} nodes - Disabled nodes */ Tree.prototype.getDisabled = function () { return this.findNodes('true', 'g', 'state.disabled'); }; /** Returns an array of enabled nodes. @returns {Array} nodes - Enabled nodes */ Tree.prototype.getEnabled = function () { return this.findNodes('false', 'g', 'state.disabled'); }; /** Set a node state to selected @param {Object|Number} identifiers - A valid node, node id or array of node identifiers @param {optional Object} options */ Tree.prototype.selectNode = function (identifiers, options) { this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setSelectedState(node, true, options); }, this)); this.render(); }; /** Set a node state to unselected @param {Object|Number} identifiers - A valid node, node id or array of node identifiers @param {optional Object} options */ Tree.prototype.unselectNode = function (identifiers, options) { this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setSelectedState(node, false, options); }, this)); this.render(); }; /** Toggles a node selected state; selecting if unselected, unselecting if selected. @param {Object|Number} identifiers - A valid node, node id or array of node identifiers @param {optional Object} options */ Tree.prototype.toggleNodeSelected = function (identifiers, options) { this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.toggleSelectedState(node, options); }, this)); this.render(); }; /** Collapse all tree nodes @param {optional Object} options */ Tree.prototype.collapseAll = function (options) { var identifiers = this.findNodes('true', 'g', 'state.expanded'); this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setExpandedState(node, false, options); }, this)); this.render(); }; /** Collapse a given tree node @param {Object|Number} identifiers - A valid node, node id or array of node identifiers @param {optional Object} options */ Tree.prototype.collapseNode = function (identifiers, options) { this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setExpandedState(node, false, options); }, this)); this.render(); }; /** Expand all tree nodes @param {optional Object} options */ Tree.prototype.expandAll = function (options) { options = $.extend({}, _default.options, options); if (options && options.levels) { this.expandLevels(this.tree, options.levels, options); } else { var identifiers = this.findNodes('false', 'g', 'state.expanded'); this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setExpandedState(node, true, options); }, this)); } this.render(); }; /** Expand a given tree node @param {Object|Number} identifiers - A valid node, node id or array of node identifiers @param {optional Object} options */ Tree.prototype.expandNode = function (identifiers, options) { this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setExpandedState(node, true, options); if (node.nodes && (options && options.levels)) { this.expandLevels(node.nodes, options.levels - 1, options); } }, this)); this.render(); }; Tree.prototype.expandLevels = function (nodes, level, options) { options = $.extend({}, _default.options, options); $.each(nodes, $.proxy(function (index, node) { this.setExpandedState(node, (level > 0) ? true : false, options); if (node.nodes) { this.expandLevels(node.nodes, level - 1, options); } }, this)); }; /** Reveals a given tree node, expanding the tree from node to root. @param {Object|Number|Array} identifiers - A valid node, node id or array of node identifiers @param {optional Object} options */ Tree.prototype.revealNode = function (identifiers, options) { this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { var parentNode = this.getParent(node); while (parentNode) { this.setExpandedState(parentNode, true, options); parentNode = this.getParent(parentNode); }; }, this)); this.render(); }; /** Toggles a nodes expanded state; collapsing if expanded, expanding if collapsed. @param {Object|Number} identifiers - A valid node, node id or array of node identifiers @param {optional Object} options */ Tree.prototype.toggleNodeExpanded = function (identifiers, options) { this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.toggleExpandedState(node, options); }, this)); this.render(); }; /** Check all tree nodes @param {optional Object} options */ Tree.prototype.checkAll = function (options) { var identifiers = this.findNodes('false', 'g', 'state.checked'); this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setCheckedState(node, true, options); }, this)); this.render(); }; /** Check a given tree node @param {Object|Number} identifiers - A valid node, node id or array of node identifiers @param {optional Object} options */ Tree.prototype.checkNode = function (identifiers, options) { this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setCheckedState(node, true, options); }, this)); this.render(); }; /** Uncheck all tree nodes @param {optional Object} options */ Tree.prototype.uncheckAll = function (options) { var identifiers = this.findNodes('true', 'g', 'state.checked'); this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setCheckedState(node, false, options); }, this)); this.render(); }; /** Uncheck a given tree node @param {Object|Number} identifiers - A valid node, node id or array of node identifiers @param {optional Object} options */ Tree.prototype.uncheckNode = function (identifiers, options) { this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setCheckedState(node, false, options); }, this)); this.render(); }; /** Toggles a nodes checked state; checking if unchecked, unchecking if checked. @param {Object|Number} identifiers - A valid node, node id or array of node identifiers @param {optional Object} options */ Tree.prototype.toggleNodeChecked = function (identifiers, options) { this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.toggleCheckedState(node, options); }, this)); this.render(); }; /** Disable all tree nodes @param {optional Object} options */ Tree.prototype.disableAll = function (options) { var identifiers = this.findNodes('false', 'g', 'state.disabled'); this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setDisabledState(node, true, options); }, this)); this.render(); }; /** Disable a given tree node @param {Object|Number} identifiers - A valid node, node id or array of node identifiers @param {optional Object} options */ Tree.prototype.disableNode = function (identifiers, options) { this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setDisabledState(node, true, options); }, this)); this.render(); }; /** Enable all tree nodes @param {optional Object} options */ Tree.prototype.enableAll = function (options) { var identifiers = this.findNodes('true', 'g', 'state.disabled'); this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setDisabledState(node, false, options); }, this)); this.render(); }; /** Enable a given tree node @param {Object|Number} identifiers - A valid node, node id or array of node identifiers @param {optional Object} options */ Tree.prototype.enableNode = function (identifiers, options) { this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setDisabledState(node, false, options); }, this)); this.render(); }; /** Toggles a nodes disabled state; disabling is enabled, enabling if disabled. @param {Object|Number} identifiers - A valid node, node id or array of node identifiers @param {optional Object} options */ Tree.prototype.toggleNodeDisabled = function (identifiers, options) { this.forEachIdentifier(identifiers, options, $.proxy(function (node, options) { this.setDisabledState(node, !node.state.disabled, options); }, this)); this.render(); }; /** Common code for processing multiple identifiers */ Tree.prototype.forEachIdentifier = function (identifiers, options, callback) { options = $.extend({}, _default.options, options); if (!(identifiers instanceof Array)) { identifiers = [identifiers]; } $.each(identifiers, $.proxy(function (index, identifier) { callback(this.identifyNode(identifier), options); }, this)); }; /* Identifies a node from either a node id or object */ Tree.prototype.identifyNode = function (identifier) { return ((typeof identifier) === 'number') ? this.nodes[identifier] : identifier; }; /** Searches the tree for nodes (text) that match given criteria @param {String} pattern - A given string to match against @param {optional Object} options - Search criteria options @return {Array} nodes - Matching nodes */ Tree.prototype.search = function (pattern, options) { options = $.extend({}, _default.searchOptions, options); this.clearSearch({ render: false }); var results = []; if (pattern && pattern.length > 0) { if (options.exactMatch) { pattern = '^' + pattern + '$'; } var modifier = 'g'; if (options.ignoreCase) { modifier += 'i'; } results = this.findNodes(pattern, modifier); // Add searchResult property to all matching nodes // This will be used to apply custom styles // and when identifying result to be cleared $.each(results, function (index, node) { node.searchResult = true; }) } // If revealResults, then render is triggered from revealNode // otherwise we just call render. if (options.revealResults) { this.revealNode(results); } else { this.render(); } this.$element.trigger('searchComplete', $.extend(true, {}, results)); return results; }; /** Clears previous search results */ Tree.prototype.clearSearch = function (options) { options = $.extend({}, { render: true }, options); var results = $.each(this.findNodes('true', 'g', 'searchResult'), function (index, node) { node.searchResult = false; }); if (options.render) { this.render(); } this.$element.trigger('searchCleared', $.extend(true, {}, results)); }; /** Find nodes that match a given criteria @param {String} pattern - A given string to match against @param {optional String} modifier - Valid RegEx modifiers @param {optional String} attribute - Attribute to compare pattern against @return {Array} nodes - Nodes that match your criteria */ Tree.prototype.findNodes = function (pattern, modifier, attribute) { modifier = modifier || 'g'; attribute = attribute || 'text'; var _this = this; return $.grep(this.nodes, function (node) { var val = _this.getNodeValue(node, attribute); if (typeof val === 'string') { return val.match(new RegExp(pattern, modifier)); } }); }; /** Recursive find for retrieving nested attributes values All values are return as strings, unless invalid @param {Object} obj - Typically a node, could be any object @param {String} attr - Identifies an object property using dot notation @return {String} value - Matching attributes string representation */ Tree.prototype.getNodeValue = function (obj, attr) { var index = attr.indexOf('.'); if (index > 0) { var _obj = obj[attr.substring(0, index)]; var _attr = attr.substring(index + 1, attr.length); return this.getNodeValue(_obj, _attr); } else { if (obj.hasOwnProperty(attr)) { return obj[attr].toString(); } else { return undefined; } } }; var logError = function (message) { if (window.console) { window.console.error(message); } }; // Prevent against multiple instantiations, // handle updates and method calls $.fn[pluginName] = function (options, args) { var result; this.each(function () { var _this = $.data(this, pluginName); if (typeof options === 'string') { if (!_this) { logError('Not initialized, can not call method : ' + options); } else if (!$.isFunction(_this[options]) || options.charAt(0) === '_') { logError('No such method : ' + options); } else { if (!(args instanceof Array)) { args = [args]; } result = _this[options].apply(_this, args); } } else if (typeof options === 'boolean') { result = _this; } else { $.data(this, pluginName, new Tree(this, $.extend(true, {}, options))); } }); return result || this; }; })(jQuery, window, document);
html需要添加拖拽事件
<!DOCTYPE html> <html> <head> <title>Bootstrap Tree View</title> <link href="./packages/treeview/bootstrap.css" rel="stylesheet"> <!-- <link href="./css/bootstrap-treeview.css" rel="stylesheet"> --> </head> <body> <div class="container"> <h1>Bootstrap Tree View</h1> <br> <div id="treeview1" class=""></div> </div> <script src="./packages/treeview/jquery.js"></script> <script src="./packages/treeview/bootstrap-treeview.js"></script> <script type="text/javascript"> var defaultData = [{ text: 'Parent 1', href: '#parent1', code: 'code1', id: 1, parentCode: 'code1', dataLevel: 1, nodes: [{ text: 'Child 1', href: '#child1', tag: "child1", dataLevel: 2, nodes: [{ text: 'Grandchild 1', href: '#grandchild1', dataLevel: 3, }, { text: 'Grandchild 2', href: '#grandchild2', dataLevel: 3, }, { text: 'Grandchild 3', href: '#grandchild3', dataLevel: 3, } ] }, { text: 'Child 2', href: '#child2', dataLevel: 2, } ] }, ]; $('#treeview1').treeview({ data: defaultData, }); function allowDrop(ev) { ev.preventDefault(); } function drag(ev) { console.log('开始'); console.log(defaultData); console.log(ev) console.log(ev.target); let _nodeid = ev.target.attributes['data-nodeid'].nodeValue; // 获取要移动元素的层级 let _level = ev.target.attributes['data-level'].nodeValue; // 获取要移动元素的节点id ev.dataTransfer.setData("nodeid", _nodeid); // 存储要移动元素的层级 ev.dataTransfer.setData("level", _level); // 存储要移动元素的节点id } function drop(ev) { console.log('结束'); ev.preventDefault(); console.log(ev.target); let _nodeid = ev.target.attributes['data-nodeid'].nodeValue; let _level = ev.target.attributes['data-level'].nodeValue; let data_level = ev.dataTransfer.getData("level"); // 要移动元素的层级 var data_nodeid = ev.dataTransfer.getData("nodeid"); // 要移动元素的节点id console.log(_level, data_level); if (data_level === _level) { $("li[data-nodeid='" + _nodeid + "']").insertAfter($("li[data-nodeid='" + data_nodeid + "']")); } else { alert('不是同一级目录，无法进行移动操作') } } // 当拖拽对象进入投放区时触发 function dragEnter(ev) { console.log(ev.target); $(ev.target).attr("style", "border:solid 1px red") } // 元素被拖出了投放区时触发 function dragLeave(ev) { console.log(ev.target); $(ev.target).attr("style", "border:solid 1px #dddddd") } </script> </body> </html>
