https://game-ost.com/static/js/jquery.autocomplete.js

1/**
2*  Ajax Autocomplete for jQuery, version 1.1.3
3*  (c) 2010 Tomas Kirda
4*
5*  Ajax Autocomplete for jQuery is freely distributable under the terms of an MIT-style license.
6*  For details, see the web site: http://www.devbridge.com/projects/autocomplete/jquery/
7*
8*  Last Review: 04/19/2010
9*/
10
11/*jslint onevar: true, evil: true, nomen: true, eqeqeq: true, bitwise: true, regexp: true, newcap: true, immed: true */
12/*global window: true, document: true, clearInterval: true, setInterval: true, jQuery: true */
13
14(function($) {
15
16  var reEscape = new RegExp('(\\' + ['/', '.', '*', '+', '?', '|', '(', ')', '[', ']', '{', '}', '\\'].join('|\\') + ')', 'g');
17
18  function fnFormatResult(value, data, currentValue) {
19    var pattern = '(' + currentValue.replace(reEscape, '\\$1') + ')';
20    return value.replace(new RegExp(pattern, 'gi'), '<strong>$1<\/strong>');
21  }
22
23  function Autocomplete(el, options) {
24    this.el = $(el);
25    this.el.attr('autocomplete', 'off');
26    this.suggestions = [];
27    this.data = [];
28    this.badQueries = [];
29    this.selectedIndex = -1;
30    this.currentValue = this.el.val();
31    this.intervalId = 0;
32    this.cachedResponse = [];
33    this.onChangeInterval = null;
34    this.ignoreValueChange = false;
35    this.serviceUrl = options.serviceUrl;
36    this.isLocal = false;

37    this.options = {
38      autoSubmit: false,
39      minChars: 1,
40      maxHeight: 300,
41      deferRequestBy: 0,
42      width: 0,
43      highlight: true,
44      params: {},
45      fnFormatResult: fnFormatResult,
46      delimiter: null,
47      zIndex: 9999
48    };
49    this.initialize();
50    this.setOptions(options);
51  }
52  
53  $.fn.autocomplete = function(options) {
54    return new Autocomplete(this.get(0)||$('<input />'), options);
55  };
56
57
58  Autocomplete.prototype = {
59
60    killerFn: null,
61
62    initialize: function() {
63
64      var me, uid, autocompleteElId;
65      me = this;
66      uid = Math.floor(Math.random()*0x100000).toString(16);
67      autocompleteElId = 'Autocomplete_' + uid;
68
69      this.killerFn = function(e) {
70        if ($(e.target).parents('.autocomplete').size() === 0) {
71          me.killSuggestions();
72          me.disableKillerFn();
73        }
74      };
75
76      if (!this.options.width) { this.options.width = this.el.width(); }
77      this.mainContainerId = 'AutocompleteContainter_' + uid;
78
79      $('<div id="' + this.mainContainerId + '" style="position:absolute;z-index:9999;"><div class="autocomplete-w1"><div class="autocomplete" id="' + autocompleteElId + '" style="display:none; width:300px;"></div></div></div>').appendTo('body');
80
81      this.container = $('#' + autocompleteElId);
82      this.fixPosition();
83      if (window.opera) {
84        this.el.keypress(function(e) { me.onKeyPress(e); });
85      } else {
86        this.el.keydown(function(e) { me.onKeyPress(e); });
87      }
88      this.el.keyup(function(e) { me.onKeyUp(e); });
89      this.el.blur(function() { me.enableKillerFn(); });
90      this.el.focus(function() { me.fixPosition(); });
91    },
92    
93    setOptions: function(options){
94      var o = this.options;
95      $.extend(o, options);
96      if(o.lookup){
97        this.isLocal = true;
98        if($.isArray(o.lookup)){ o.lookup = { suggestions:o.lookup, data:[] }; }
99      }
100      $('#'+this.mainContainerId).css({ zIndex:o.zIndex });
101      this.container.css({ maxHeight: o.maxHeight + 'px', width:o.width });
102    },
103    
104    clearCache: function(){
105      this.cachedResponse = [];
106      this.badQueries = [];
107    },
108    
109    disable: function(){
110      this.disabled = true;
111    },
112    
113    enable: function(){
114      this.disabled = false;
115    },
116
117    fixPosition: function() {
118      var offset = this.el.offset();
119      $('#' + this.mainContainerId).css({ top: (offset.top + this.el.innerHeight()) + 'px', left: offset.left + 'px' });
120    },
121
122    enableKillerFn: function() {
123      var me = this;
124      $(document).bind('click', me.killerFn);
125    },
126
127    disableKillerFn: function() {
128      var me = this;
129      $(document).unbind('click', me.killerFn);
130    },
131
132    killSuggestions: function() {
133      var me = this;
134      this.stopKillSuggestions();
135      this.intervalId = window.setInterval(function() { me.hide(); me.stopKillSuggestions(); }, 300);
136    },
137
138    stopKillSuggestions: function() {
139      window.clearInterval(this.intervalId);
140    },
141
142    onKeyPress: function(e) {
143      if (this.disabled || !this.enabled) { return; }
144      // return will exit the function
145      // and event will not be prevented
146      switch (e.keyCode) {
147        case 27: //KEY_ESC:
148          this.el.val(this.currentValue);
149          this.hide();
150          break;
151        case 9: //KEY_TAB:
152        case 13: //KEY_RETURN:
153          if (this.selectedIndex === -1) {
154            this.hide();
155            return;
156          }
157          this.select(this.selectedIndex);
158          if(e.keyCode === 9){ return; }
159          break;
160        case 38: //KEY_UP:
161          this.moveUp();
162          break;
163        case 40: //KEY_DOWN:
164          this.moveDown();
165          break;
166        default:
167          return;
168      }
169      e.stopImmediatePropagation();
170      e.preventDefault();
171    },
172
173    onKeyUp: function(e) {
174      if(this.disabled){ return; }
175      switch (e.keyCode) {
176        case 38: //KEY_UP:
177        case 40: //KEY_DOWN:
178          return;
179      }
180      clearInterval(this.onChangeInterval);
181      if (this.currentValue !== this.el.val()) {
182        if (this.options.deferRequestBy > 0) {
183          // Defer lookup in case when value changes very quickly:
184          var me = this;
185          this.onChangeInterval = setInterval(function() { me.onValueChange(); }, this.options.deferRequestBy);
186        } else {
187          this.onValueChange();
188        }
189      }
190    },
191
192    onValueChange: function() {
193      clearInterval(this.onChangeInterval);
194      this.currentValue = this.el.val();
195      var q = this.getQuery(this.currentValue);
196      this.selectedIndex = -1;
197      if (this.ignoreValueChange) {
198        this.ignoreValueChange = false;

199        return;
200      }
201      if (q === '' || q.length < this.options.minChars) {
202        this.hide();
203      } else {
204        this.getSuggestions(q);
205      }
206    },
207
208    getQuery: function(val) {
209      var d, arr;
210      d = this.options.delimiter;
211      if (!d) { return $.trim(val); }
212      arr = val.split(d);
213      return $.trim(arr[arr.length - 1]);
214    },
215
216    getSuggestionsLocal: function(q) {
217      var ret, arr, len, val, i;
218      arr = this.options.lookup;
219      len = arr.suggestions.length;
220      ret = { suggestions:[], data:[] };
221      q = q.toLowerCase();
222      for(i=0; i< len; i++){
223        val = arr.suggestions[i];
224        if(val.toLowerCase().indexOf(q) === 0){
225          ret.suggestions.push(val);
226          ret.data.push(arr.data[i]);
227        }
228      }
229      return ret;
230    },
231    
232    getSuggestions: function(q) {
233      var cr, me;
234      cr = this.isLocal ? this.getSuggestionsLocal(q) : this.cachedResponse[q];
235      if (cr && $.isArray(cr.suggestions)) {
236        this.suggestions = cr.suggestions;
237        this.data = cr.data;
238        this.suggest();
239      } else if (!this.isBadQuery(q)) {
240        me = this;
241        me.options.params.query = q;
242        $.get(this.serviceUrl, me.options.params, function(txt) { me.processResponse(txt); }, 'text');
243      }
244    },
245
246    isBadQuery: function(q) {
247      var i = this.badQueries.length;
248      while (i--) {
249        if (q.indexOf(this.badQueries[i]) === 0) { return true; }
250      }
251      return false;
252    },
253
254    hide: function() {
255      this.enabled = false;
256      this.selectedIndex = -1;
257      this.container.hide();
258    },
259
260    suggest: function() {
261      if (this.suggestions.length === 0) {
262        this.hide();
263        return;
264      }
265
266      var me, len, div, f, v, i, s, mOver, mClick;
267      me = this;
268      len = this.suggestions.length;
269      f = this.options.fnFormatResult;
270      v = this.getQuery(this.currentValue);
271      mOver = function(xi) { return function() { me.activate(xi); }; };
272      mClick = function(xi) { return function() { me.select(xi); }; };
273      this.container.hide().empty();
274      for (i = 0; i < len; i++) {
275        s = this.suggestions[i];
276        div = $((me.selectedIndex === i ? '<div class="selected"' : '<div') + ' title="' + s + '">' + f(s, this.data[i], v) + '</div>');
277        div.mouseover(mOver(i));
278        div.click(mClick(i));
279        this.container.append(div);
280      }
281      this.enabled = true;
282      this.container.show();
283    },
284
285    processResponse: function(text) {
286      var response;
287      try {
288        response = eval('(' + text + ')');
289      } catch (err) { return; }
290      if (!$.isArray(response.data)) { response.data = []; }
291      if(!this.options.noCache){
292        this.cachedResponse[response.query] = response;
293        if (response.suggestions.length === 0) { this.badQueries.push(response.query); }
294      }
295      if (response.query === this.getQuery(this.currentValue)) {
296        this.suggestions = response.suggestions;
297        this.data = response.data;
298        this.suggest(); 
299      }
300    },
301
302    activate: function(index) {
303      var divs, activeItem;
304      divs = this.container.children();
305      // Clear previous selection:
306      if (this.selectedIndex !== -1 && divs.length > this.selectedIndex) {
307        $(divs.get(this.selectedIndex)).removeClass();
308      }
309      this.selectedIndex = index;
310      if (this.selectedIndex !== -1 && divs.length > this.selectedIndex) {
311        activeItem = divs.get(this.selectedIndex);
312        $(activeItem).addClass('selected');
313      }
314      return activeItem;
315    },
316
317    deactivate: function(div, index) {
318      div.className = '';
319      if (this.selectedIndex === index) { this.selectedIndex = -1; }
320    },
321
322    select: function(i) {
323      var selectedValue, f;
324      selectedValue = this.suggestions[i];
325      if (selectedValue) {
326        this.el.val(selectedValue);
327        if (this.options.autoSubmit) {
328          f = this.el.parents('form');
329          if (f.length > 0) { f.get(0).submit(); }
330        }
331        this.ignoreValueChange = true;
332        this.hide();
333        this.onSelect(i);
334      }
335    },
336
337    moveUp: function() {
338      if (this.selectedIndex === -1) { return; }
339      if (this.selectedIndex === 0) {
340        this.container.children().get(0).className = '';
341        this.selectedIndex = -1;
342        this.el.val(this.currentValue);
343        return;
344      }
345      this.adjustScroll(this.selectedIndex - 1);
346    },
347
348    moveDown: function() {
349      if (this.selectedIndex === (this.suggestions.length - 1)) { return; }
350      this.adjustScroll(this.selectedIndex + 1);
351    },
352
353    adjustScroll: function(i) {
354      var activeItem, offsetTop, upperBound, lowerBound;
355      activeItem = this.activate(i);
356      offsetTop = activeItem.offsetTop;
357      upperBound = this.container.scrollTop();
358      lowerBound = upperBound + this.options.maxHeight - 25;
359      if (offsetTop < upperBound) {
360        this.container.scrollTop(offsetTop);
361      } else if (offsetTop > lowerBound) {
362        this.container.scrollTop(offsetTop - this.options.maxHeight + 25);
363      }
364      this.el.val(this.getValue(this.suggestions[i]));
365    },
366
367    onSelect: function(i) {
368      var me, fn, s, d;
369      me = this;
370      fn = me.options.onSelect;
371      s = me.suggestions[i];
372      d = me.data[i];
373      me.el.val(me.getValue(s));
374      if ($.isFunction(fn)) { fn(s, d, me.el); }
375    },
376    
377    getValue: function(value){
378        var del, currVal, arr, me;
379        me = this;
380        del = me.options.delimiter;
381        if (!del) { return value; }
382        currVal = me.currentValue;
383        arr = currVal.split(del);
384        if (arr.length === 1) { return value; }
385        return currVal.substr(0, currVal.length - arr[arr.length - 1].length) + value;
386    }
387
388  };
389
390}(jQuery));