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4 lars 1
/**
2
 * ### Search plugin
3
 *
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 * Adds search functionality to jsTree.
5
 */
6
/*globals jQuery, define, exports, require, document */
7
(function (factory) {
8
	"use strict";
9
	if (typeof define === 'function' && define.amd) {
10
		define('jstree.search', ['jquery','jstree'], factory);
11
	}
12
	else if(typeof exports === 'object') {
13
		factory(require('jquery'), require('jstree'));
14
	}
15
	else {
16
		factory(jQuery, jQuery.jstree);
17
	}
18
}(function ($, jstree, undefined) {
19
	"use strict";
20
 
21
	if($.jstree.plugins.search) { return; }
22
 
23
	/**
24
	 * stores all defaults for the search plugin
25
	 * @name $.jstree.defaults.search
26
	 * @plugin search
27
	 */
28
	$.jstree.defaults.search = {
29
		/**
30
		 * a jQuery-like AJAX config, which jstree uses if a server should be queried for results.
31
		 *
32
		 * A `str` (which is the search string) parameter will be added with the request, an optional `inside` parameter will be added if the search is limited to a node id. The expected result is a JSON array with nodes that need to be opened so that matching nodes will be revealed.
33
		 * Leave this setting as `false` to not query the server. You can also set this to a function, which will be invoked in the instance's scope and receive 3 parameters - the search string, the callback to call with the array of nodes to load, and the optional node ID to limit the search to
34
		 * @name $.jstree.defaults.search.ajax
35
		 * @plugin search
36
		 */
37
		ajax : false,
38
		/**
39
		 * Indicates if the search should be fuzzy or not (should `chnd3` match `child node 3`). Default is `false`.
40
		 * @name $.jstree.defaults.search.fuzzy
41
		 * @plugin search
42
		 */
43
		fuzzy : false,
44
		/**
45
		 * Indicates if the search should be case sensitive. Default is `false`.
46
		 * @name $.jstree.defaults.search.case_sensitive
47
		 * @plugin search
48
		 */
49
		case_sensitive : false,
50
		/**
51
		 * Indicates if the tree should be filtered (by default) to show only matching nodes (keep in mind this can be a heavy on large trees in old browsers).
52
		 * This setting can be changed at runtime when calling the search method. Default is `false`.
53
		 * @name $.jstree.defaults.search.show_only_matches
54
		 * @plugin search
55
		 */
56
		show_only_matches : false,
57
		/**
58
		 * Indicates if the children of matched element are shown (when show_only_matches is true)
59
		 * This setting can be changed at runtime when calling the search method. Default is `false`.
60
		 * @name $.jstree.defaults.search.show_only_matches_children
61
		 * @plugin search
62
		 */
63
		show_only_matches_children : false,
64
		/**
65
		 * Indicates if all nodes opened to reveal the search result, should be closed when the search is cleared or a new search is performed. Default is `true`.
66
		 * @name $.jstree.defaults.search.close_opened_onclear
67
		 * @plugin search
68
		 */
69
		close_opened_onclear : true,
70
		/**
71
		 * Indicates if only leaf nodes should be included in search results. Default is `false`.
72
		 * @name $.jstree.defaults.search.search_leaves_only
73
		 * @plugin search
74
		 */
75
		search_leaves_only : false,
76
		/**
77
		 * If set to a function it wil be called in the instance's scope with two arguments - search string and node (where node will be every node in the structure, so use with caution).
78
		 * If the function returns a truthy value the node will be considered a match (it might not be displayed if search_only_leaves is set to true and the node is not a leaf). Default is `false`.
79
		 * @name $.jstree.defaults.search.search_callback
80
		 * @plugin search
81
		 */
82
		search_callback : false
83
	};
84
 
85
	$.jstree.plugins.search = function (options, parent) {
86
		this.bind = function () {
87
			parent.bind.call(this);
88
 
89
			this._data.search.str = "";
90
			this._data.search.dom = $();
91
			this._data.search.res = [];
92
			this._data.search.opn = [];
93
			this._data.search.som = false;
94
			this._data.search.smc = false;
95
			this._data.search.hdn = [];
96
 
97
			this.element
98
				.on("search.jstree", $.proxy(function (e, data) {
99
						if(this._data.search.som && data.res.length) {
100
							var m = this._model.data, i, j, p = [];
101
							for(i = 0, j = data.res.length; i < j; i++) {
102
								if(m[data.res[i]] && !m[data.res[i]].state.hidden) {
103
									p.push(data.res[i]);
104
									p = p.concat(m[data.res[i]].parents);
105
									if(this._data.search.smc) {
106
										p = p.concat(m[data.res[i]].children_d);
107
									}
108
								}
109
							}
110
							p = $.vakata.array_remove_item($.vakata.array_unique(p), $.jstree.root);
111
							this._data.search.hdn = this.hide_all(true);
112
							this.show_node(p);
113
						}
114
					}, this))
115
				.on("clear_search.jstree", $.proxy(function (e, data) {
116
						if(this._data.search.som && data.res.length) {
117
							this.show_node(this._data.search.hdn);
118
						}
119
					}, this));
120
		};
121
		/**
122
		 * used to search the tree nodes for a given string
123
		 * @name search(str [, skip_async])
124
		 * @param {String} str the search string
125
		 * @param {Boolean} skip_async if set to true server will not be queried even if configured
126
		 * @param {Boolean} show_only_matches if set to true only matching nodes will be shown (keep in mind this can be very slow on large trees or old browsers)
127
		 * @param {mixed} inside an optional node to whose children to limit the search
128
		 * @param {Boolean} append if set to true the results of this search are appended to the previous search
129
		 * @plugin search
130
		 * @trigger search.jstree
131
		 */
132
		this.search = function (str, skip_async, show_only_matches, inside, append, show_only_matches_children) {
133
			if(str === false || $.trim(str.toString()) === "") {
134
				return this.clear_search();
135
			}
136
			inside = this.get_node(inside);
137
			inside = inside && inside.id ? inside.id : null;
138
			str = str.toString();
139
			var s = this.settings.search,
140
				a = s.ajax ? s.ajax : false,
141
				m = this._model.data,
142
				f = null,
143
				r = [],
144
				p = [], i, j;
145
			if(this._data.search.res.length && !append) {
146
				this.clear_search();
147
			}
148
			if(show_only_matches === undefined) {
149
				show_only_matches = s.show_only_matches;
150
			}
151
			if(show_only_matches_children === undefined) {
152
				show_only_matches_children = s.show_only_matches_children;
153
			}
154
			if(!skip_async && a !== false) {
155
				if($.isFunction(a)) {
156
					return a.call(this, str, $.proxy(function (d) {
157
							if(d && d.d) { d = d.d; }
158
							this._load_nodes(!$.isArray(d) ? [] : $.vakata.array_unique(d), function () {
159
								this.search(str, true, show_only_matches, inside, append);
160
							}, true);
161
						}, this), inside);
162
				}
163
				else {
164
					a = $.extend({}, a);
165
					if(!a.data) { a.data = {}; }
166
					a.data.str = str;
167
					if(inside) {
168
						a.data.inside = inside;
169
					}
170
					return $.ajax(a)
171
						.fail($.proxy(function () {
172
							this._data.core.last_error = { 'error' : 'ajax', 'plugin' : 'search', 'id' : 'search_01', 'reason' : 'Could not load search parents', 'data' : JSON.stringify(a) };
173
							this.settings.core.error.call(this, this._data.core.last_error);
174
						}, this))
175
						.done($.proxy(function (d) {
176
							if(d && d.d) { d = d.d; }
177
							this._load_nodes(!$.isArray(d) ? [] : $.vakata.array_unique(d), function () {
178
								this.search(str, true, show_only_matches, inside, append);
179
							}, true);
180
						}, this));
181
				}
182
			}
183
			if(!append) {
184
				this._data.search.str = str;
185
				this._data.search.dom = $();
186
				this._data.search.res = [];
187
				this._data.search.opn = [];
188
				this._data.search.som = show_only_matches;
189
				this._data.search.smc = show_only_matches_children;
190
			}
191
 
192
			f = new $.vakata.search(str, true, { caseSensitive : s.case_sensitive, fuzzy : s.fuzzy });
193
			$.each(m[inside ? inside : $.jstree.root].children_d, function (ii, i) {
194
				var v = m[i];
195
				if(v.text && (!s.search_leaves_only || (v.state.loaded && v.children.length === 0)) && ( (s.search_callback && s.search_callback.call(this, str, v)) || (!s.search_callback && f.search(v.text).isMatch) ) ) {
196
					r.push(i);
197
					p = p.concat(v.parents);
198
				}
199
			});
200
			if(r.length) {
201
				p = $.vakata.array_unique(p);
202
				for(i = 0, j = p.length; i < j; i++) {
203
					if(p[i] !== $.jstree.root && m[p[i]] && this.open_node(p[i], null, 0) === true) {
204
						this._data.search.opn.push(p[i]);
205
					}
206
				}
207
				if(!append) {
208
					this._data.search.dom = $(this.element[0].querySelectorAll('#' + $.map(r, function (v) { return "0123456789".indexOf(v[0]) !== -1 ? '\\3' + v[0] + ' ' + v.substr(1).replace($.jstree.idregex,'\\$&') : v.replace($.jstree.idregex,'\\$&'); }).join(', #')));
209
					this._data.search.res = r;
210
				}
211
				else {
212
					this._data.search.dom = this._data.search.dom.add($(this.element[0].querySelectorAll('#' + $.map(r, function (v) { return "0123456789".indexOf(v[0]) !== -1 ? '\\3' + v[0] + ' ' + v.substr(1).replace($.jstree.idregex,'\\$&') : v.replace($.jstree.idregex,'\\$&'); }).join(', #'))));
213
					this._data.search.res = $.vakata.array_unique(this._data.search.res.concat(r));
214
				}
215
				this._data.search.dom.children(".jstree-anchor").addClass('jstree-search');
216
			}
217
			/**
218
			 * triggered after search is complete
219
			 * @event
220
			 * @name search.jstree
221
			 * @param {jQuery} nodes a jQuery collection of matching nodes
222
			 * @param {String} str the search string
223
			 * @param {Array} res a collection of objects represeing the matching nodes
224
			 * @plugin search
225
			 */
226
			this.trigger('search', { nodes : this._data.search.dom, str : str, res : this._data.search.res, show_only_matches : show_only_matches });
227
		};
228
		/**
229
		 * used to clear the last search (removes classes and shows all nodes if filtering is on)
230
		 * @name clear_search()
231
		 * @plugin search
232
		 * @trigger clear_search.jstree
233
		 */
234
		this.clear_search = function () {
235
			if(this.settings.search.close_opened_onclear) {
236
				this.close_node(this._data.search.opn, 0);
237
			}
238
			/**
239
			 * triggered after search is complete
240
			 * @event
241
			 * @name clear_search.jstree
242
			 * @param {jQuery} nodes a jQuery collection of matching nodes (the result from the last search)
243
			 * @param {String} str the search string (the last search string)
244
			 * @param {Array} res a collection of objects represeing the matching nodes (the result from the last search)
245
			 * @plugin search
246
			 */
247
			this.trigger('clear_search', { 'nodes' : this._data.search.dom, str : this._data.search.str, res : this._data.search.res });
248
			if(this._data.search.res.length) {
249
				this._data.search.dom = $(this.element[0].querySelectorAll('#' + $.map(this._data.search.res, function (v) {
250
					return "0123456789".indexOf(v[0]) !== -1 ? '\\3' + v[0] + ' ' + v.substr(1).replace($.jstree.idregex,'\\$&') : v.replace($.jstree.idregex,'\\$&');
251
				}).join(', #')));
252
				this._data.search.dom.children(".jstree-anchor").removeClass("jstree-search");
253
			}
254
			this._data.search.str = "";
255
			this._data.search.res = [];
256
			this._data.search.opn = [];
257
			this._data.search.dom = $();
258
		};
259
 
260
		this.redraw_node = function(obj, deep, callback, force_render) {
261
			obj = parent.redraw_node.apply(this, arguments);
262
			if(obj) {
263
				if($.inArray(obj.id, this._data.search.res) !== -1) {
264
					var i, j, tmp = null;
265
					for(i = 0, j = obj.childNodes.length; i < j; i++) {
266
						if(obj.childNodes[i] && obj.childNodes[i].className && obj.childNodes[i].className.indexOf("jstree-anchor") !== -1) {
267
							tmp = obj.childNodes[i];
268
							break;
269
						}
270
					}
271
					if(tmp) {
272
						tmp.className += ' jstree-search';
273
					}
274
				}
275
			}
276
			return obj;
277
		};
278
	};
279
 
280
	// helpers
281
	(function ($) {
282
		// from http://kiro.me/projects/fuse.html
283
		$.vakata.search = function(pattern, txt, options) {
284
			options = options || {};
285
			options = $.extend({}, $.vakata.search.defaults, options);
286
			if(options.fuzzy !== false) {
287
				options.fuzzy = true;
288
			}
289
			pattern = options.caseSensitive ? pattern : pattern.toLowerCase();
290
			var MATCH_LOCATION	= options.location,
291
				MATCH_DISTANCE	= options.distance,
292
				MATCH_THRESHOLD	= options.threshold,
293
				patternLen = pattern.length,
294
				matchmask, pattern_alphabet, match_bitapScore, search;
295
			if(patternLen > 32) {
296
				options.fuzzy = false;
297
			}
298
			if(options.fuzzy) {
299
				matchmask = 1 << (patternLen - 1);
300
				pattern_alphabet = (function () {
301
					var mask = {},
302
						i = 0;
303
					for (i = 0; i < patternLen; i++) {
304
						mask[pattern.charAt(i)] = 0;
305
					}
306
					for (i = 0; i < patternLen; i++) {
307
						mask[pattern.charAt(i)] |= 1 << (patternLen - i - 1);
308
					}
309
					return mask;
310
				}());
311
				match_bitapScore = function (e, x) {
312
					var accuracy = e / patternLen,
313
						proximity = Math.abs(MATCH_LOCATION - x);
314
					if(!MATCH_DISTANCE) {
315
						return proximity ? 1.0 : accuracy;
316
					}
317
					return accuracy + (proximity / MATCH_DISTANCE);
318
				};
319
			}
320
			search = function (text) {
321
				text = options.caseSensitive ? text : text.toLowerCase();
322
				if(pattern === text || text.indexOf(pattern) !== -1) {
323
					return {
324
						isMatch: true,
325
						score: 0
326
					};
327
				}
328
				if(!options.fuzzy) {
329
					return {
330
						isMatch: false,
331
						score: 1
332
					};
333
				}
334
				var i, j,
335
					textLen = text.length,
336
					scoreThreshold = MATCH_THRESHOLD,
337
					bestLoc = text.indexOf(pattern, MATCH_LOCATION),
338
					binMin, binMid,
339
					binMax = patternLen + textLen,
340
					lastRd, start, finish, rd, charMatch,
341
					score = 1,
342
					locations = [];
343
				if (bestLoc !== -1) {
344
					scoreThreshold = Math.min(match_bitapScore(0, bestLoc), scoreThreshold);
345
					bestLoc = text.lastIndexOf(pattern, MATCH_LOCATION + patternLen);
346
					if (bestLoc !== -1) {
347
						scoreThreshold = Math.min(match_bitapScore(0, bestLoc), scoreThreshold);
348
					}
349
				}
350
				bestLoc = -1;
351
				for (i = 0; i < patternLen; i++) {
352
					binMin = 0;
353
					binMid = binMax;
354
					while (binMin < binMid) {
355
						if (match_bitapScore(i, MATCH_LOCATION + binMid) <= scoreThreshold) {
356
							binMin = binMid;
357
						} else {
358
							binMax = binMid;
359
						}
360
						binMid = Math.floor((binMax - binMin) / 2 + binMin);
361
					}
362
					binMax = binMid;
363
					start = Math.max(1, MATCH_LOCATION - binMid + 1);
364
					finish = Math.min(MATCH_LOCATION + binMid, textLen) + patternLen;
365
					rd = new Array(finish + 2);
366
					rd[finish + 1] = (1 << i) - 1;
367
					for (j = finish; j >= start; j--) {
368
						charMatch = pattern_alphabet[text.charAt(j - 1)];
369
						if (i === 0) {
370
							rd[j] = ((rd[j + 1] << 1) | 1) & charMatch;
371
						} else {
372
							rd[j] = ((rd[j + 1] << 1) | 1) & charMatch | (((lastRd[j + 1] | lastRd[j]) << 1) | 1) | lastRd[j + 1];
373
						}
374
						if (rd[j] & matchmask) {
375
							score = match_bitapScore(i, j - 1);
376
							if (score <= scoreThreshold) {
377
								scoreThreshold = score;
378
								bestLoc = j - 1;
379
								locations.push(bestLoc);
380
								if (bestLoc > MATCH_LOCATION) {
381
									start = Math.max(1, 2 * MATCH_LOCATION - bestLoc);
382
								} else {
383
									break;
384
								}
385
							}
386
						}
387
					}
388
					if (match_bitapScore(i + 1, MATCH_LOCATION) > scoreThreshold) {
389
						break;
390
					}
391
					lastRd = rd;
392
				}
393
				return {
394
					isMatch: bestLoc >= 0,
395
					score: score
396
				};
397
			};
398
			return txt === true ? { 'search' : search } : search(txt);
399
		};
400
		$.vakata.search.defaults = {
401
			location : 0,
402
			distance : 100,
403
			threshold : 0.6,
404
			fuzzy : false,
405
			caseSensitive : false
406
		};
407
	}($));
408
 
409
	// include the search plugin by default
410
	// $.jstree.defaults.plugins.push("search");
411
}));