forked from wuyuntao/jquery-autosuggest
/
jquery.autoSuggest.js
423 lines (410 loc) · 21.2 KB
/
jquery.autoSuggest.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
/*
* AutoSuggest
* Copyright 2009-2010 Drew Wilson
* www.drewwilson.com
* code.drewwilson.com/entry/autosuggest-jquery-plugin
*
* Forked by Wu Yuntao
* github.com/wuyuntao/jquery-autosuggest
*
* Version 1.6.2
*
* This Plug-In will auto-complete or auto-suggest completed search queries
* for you as you type. You can add multiple selections and remove them on
* the fly. It supports keybord navigation (UP + DOWN + RETURN), as well
* as multiple AutoSuggest fields on the same page.
*
* Inspired by the Autocomplete plugin by: Joern Zaefferer
* and the Facelist plugin by: Ian Tearle (iantearle.com)
*
* This AutoSuggest jQuery plug-in is dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*/
(function($){
$.fn.autoSuggest = function(data, options) {
var defaults = {
asHtmlID: false,
startText: "Enter Name Here",
usePlaceholder: false,
emptyText: "No Results Found",
preFill: {},
limitText: "No More Selections Are Allowed",
selectedItemProp: "value", //name of object property
selectedValuesProp: "value", //name of object property
searchObjProps: "value", //comma separated list of object property names
queryParam: "q",
retrieveLimit: false, //number for 'limit' param on ajax request
extraParams: "",
matchCase: false,
minChars: 1,
keyDelay: 400,
resultsHighlight: true,
neverSubmit: false,
selectionLimit: false,
showResultList: true,
showResultListWhenNoMatch: false,
canGenerateNewSelections: true,
start: function(){},
selectionClick: function(elem){},
selectionAdded: function(elem){},
selectionRemoved: function(elem){ elem.remove(); },
formatList: false, //callback function
beforeRetrieve: function(string){ return string; },
retrieveComplete: function(data){ return data; },
resultClick: function(data){},
resultsComplete: function(){}
};
var opts = $.extend(defaults, options);
function countValidItems(data) { var n = 0; for (k in data) if (data.hasOwnProperty(k)) n++; return n; }
var d_fetcher;
var request = null;
if(typeof data == "function") {
d_fetcher = data;
} else if(typeof data == "string") {
d_fetcher = function(query, next) {
var limit = "";
if(opts.retrieveLimit){
limit = "&limit="+encodeURIComponent(opts.retrieveLimit);
}
request = $.getJSON(data+"?"+opts.queryParam+"="+encodeURIComponent(query)+limit+opts.extraParams, function(data){
var new_data = opts.retrieveComplete.call(this, data);
next(new_data, query);
});
};
} else if(typeof data == "object" && countValidItems(data) > 0) {
d_fetcher = function(query, next) { next(data, query); };
}
if(d_fetcher) {
return this.each(function(x){
if(!opts.asHtmlID){
x = x+""+Math.floor(Math.random()*100); //this ensures there will be unique IDs on the page if autoSuggest() is called multiple times
var x_id = "as-input-"+x;
} else {
x = opts.asHtmlID;
var x_id = x;
}
opts.start.call(this, {
add: function(data) {
add_selected_item(data, 'u' + $('li', selections_holder).length).addClass('blur');
},
remove: function(value) {
values_input.val(values_input.val().replace(","+value+",",","));
selections_holder.find('li[data-value = "' + value + '"]').remove();
},
});
var input = $(this);
input.attr("autocomplete","off").addClass("as-input").attr("id",x_id);
if (opts.usePlaceholder) {
input.attr('placeholder', opts.startText);
} else {
input.val(opts.startText);
}
var input_focus = false;
// Setup basic elements and render them to the DOM
input.wrap('<ul class="as-selections" id="as-selections-'+x+'"></ul>').wrap('<li class="as-original" id="as-original-'+x+'"></li>');
var selections_holder = $("#as-selections-"+x);
var org_li = $("#as-original-"+x);
var results_holder = $('<div class="as-results" id="as-results-'+x+'"></div>').hide();
var results_ul = $('<ul class="as-list"></ul>');
var values_input = $('<input type="hidden" class="as-values" name="as_values_'+x+'" id="as-values-'+x+'" />');
var prefill_value = "";
if(typeof opts.preFill == "string"){
var vals = opts.preFill.split(",");
for(var i=0; i < vals.length; i++){
var v_data = {};
v_data[opts.selectedValuesProp] = vals[i];
if(vals[i] != ""){
add_selected_item(v_data, "000"+i);
}
}
prefill_value = opts.preFill;
} else {
prefill_value = "";
var prefill_count = 0;
for (k in opts.preFill) if (opts.preFill.hasOwnProperty(k)) prefill_count++;
if(prefill_count > 0){
for(var i=0; i < prefill_count; i++){
var new_v = opts.preFill[i][opts.selectedValuesProp];
if(new_v == undefined){ new_v = ""; }
prefill_value = prefill_value+new_v+",";
if(new_v != ""){
add_selected_item(opts.preFill[i], "000"+i);
}
}
}
}
if(prefill_value != ""){
input.val("");
var lastChar = prefill_value.substring(prefill_value.length-1);
if(lastChar != ","){ prefill_value = prefill_value+","; }
values_input.val(","+prefill_value);
$("li.as-selection-item", selections_holder).addClass("blur").removeClass("selected");
}
input.after(values_input);
selections_holder.click(function(){
input_focus = true;
input.focus();
}).mousedown(function(){ input_focus = false; }).after(results_holder);
var interval = null;
var timeout = null;
var prev = "";
var totalSelections = 0;
var tab_press = false;
var lastKeyPressCode = null;
// Handle input field events
input.focus(function(){
if(!opts.usePlaceholder && $(this).val() == opts.startText && values_input.val() == ""){
$(this).val("");
} else if(input_focus){
$("li.as-selection-item", selections_holder).removeClass("blur");
if($(this).val() != ""){
results_ul.css("width",selections_holder.outerWidth());
results_holder.show();
}
}
if (interval) clearInterval(interval);
interval = setInterval(function() {
if(opts.showResultList){
if(opts.selectionLimit && $("li.as-selection-item", selections_holder).length >= opts.selectionLimit){
results_ul.html('<li class="as-message">'+opts.limitText+'</li>');
results_holder.show();
} else {
keyChange();
}
}
}, opts.keyDelay);
input_focus = true;
if (opts.minChars == 0){
processRequest($(this).val());
}
return true;
}).blur(function(){
if (!opts.usePlaceholder && $(this).val() == "" && values_input.val() == "" && prefill_value == "" && opts.minChars > 0) {
$(this).val(opts.startText);
} else if(input_focus){
$("li.as-selection-item", selections_holder).addClass("blur").removeClass("selected");
results_holder.hide();
}
if (interval) clearInterval(interval);
}).keydown(function(e) {
// track last key pressed
lastKeyPressCode = e.keyCode;
first_focus = false;
switch(e.keyCode) {
case 38: // up
e.preventDefault();
moveSelection("up");
break;
case 40: // down
e.preventDefault();
moveSelection("down");
break;
case 8: // delete
if(input.val() == ""){
var last = values_input.val().split(",");
last = last[last.length - 2];
selections_holder.children().not(org_li.prev()).removeClass("selected");
if(org_li.prev().hasClass("selected")){
values_input.val(values_input.val().replace(","+last+",",","));
opts.selectionRemoved.call(this, org_li.prev());
} else {
opts.selectionClick.call(this, org_li.prev());
org_li.prev().addClass("selected");
}
}
if(input.val().length == 1){
results_holder.hide();
prev = "";
abortRequest();
}
if($(":visible",results_holder).length > 0){
if (timeout){ clearTimeout(timeout); }
timeout = setTimeout(function(){ keyChange(); }, opts.keyDelay);
}
break;
case 9: case 188: // tab or comm
if(opts.canGenerateNewSelections){
tab_press = true;
var i_input = input.val().replace(/(,)/g, "");
var active = $("li.active:first", results_holder);
// Generate a new bubble with text when no suggestion selected
if(i_input !== "" && values_input.val().search(","+i_input+",") < 0 && i_input.length >= opts.minChars && active.length === 0){
e.preventDefault();
var n_data = {};
n_data[opts.selectedItemProp] = i_input;
n_data[opts.selectedValuesProp] = i_input;
var lis = $("li", selections_holder).length;
add_selected_item(n_data, "00"+(lis+1));
input.val("");
// Cancel previous request when new tag is added
abortRequest();
break;
}
}
case 13: // return
tab_press = false;
var active = $("li.active:first", results_holder);
if(active.length > 0){
active.click();
results_holder.hide();
}
if(opts.neverSubmit || active.length > 0){
e.preventDefault();
}
break;
// ignore if the following keys are pressed: [escape] [shift] [capslock]
case 27: // escape
case 16: // shift
case 20: // capslock
abortRequest();
results_holder.hide();
break;
}
});
function keyChange() {
// Since most IME does not trigger any key events, if we press [del]
// and type some chinese character, `lastKeyPressCode` will still be [del].
// This might cause problem so we move the line to key events section;
// ignore if the following keys are pressed: [del] [shift] [capslock]
// if( lastKeyPressCode == 46 || (lastKeyPressCode > 8 && lastKeyPressCode < 32) ){ return results_holder.hide(); }
var string = input.val().replace(/[\\]+|[\/]+/g,"");
if (string == prev) return;
prev = string;
if (string.length >= opts.minChars) {
selections_holder.addClass("loading");
processRequest(string);
} else {
selections_holder.removeClass("loading");
results_holder.hide();
}
}
function processRequest(string){
if(opts.beforeRetrieve){
string = opts.beforeRetrieve.call(this, string);
}
abortRequest();
d_fetcher(string, processData);
}
var num_count = 0;
function processData(data, query){
if (!opts.matchCase){ query = query.toLowerCase(); }
query = query.replace("(", "\\(", "g").replace(")", "\\)", "g");
var matchCount = 0;
results_holder.html(results_ul.html("")).hide();
var d_count = countValidItems(data);
for(var i=0;i<d_count;i++){
var num = i;
num_count++;
var forward = false;
if(opts.searchObjProps == "value") {
var str = data[num].value;
} else {
var str = "";
var names = opts.searchObjProps.split(",");
for(var y=0;y<names.length;y++){
var name = $.trim(names[y]);
str = str+data[num][name]+" ";
}
}
if(str){
if (!opts.matchCase){ str = str.toLowerCase(); }
if(str.search(query) != -1 && values_input.val().search(","+data[num][opts.selectedValuesProp]+",") == -1){
forward = true;
}
}
if(forward){
var formatted = $('<li class="as-result-item" id="as-result-item-'+num+'"></li>').click(function(){
var raw_data = $(this).data("data");
var number = raw_data.num;
if($("#as-selection-"+number, selections_holder).length <= 0 && !tab_press){
var data = raw_data.attributes;
input.val("").focus();
prev = "";
add_selected_item(data, number);
opts.resultClick.call(this, raw_data);
results_holder.hide();
}
tab_press = false;
}).mousedown(function(){ input_focus = false; }).mouseover(function(){
$("li", results_ul).removeClass("active");
$(this).addClass("active");
}).data("data",{attributes: data[num], num: num_count});
var this_data = $.extend({},data[num]);
if (!opts.matchCase){
var regx = new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + query + ")(?![^<>]*>)(?![^&;]+;)", "gi");
} else {
var regx = new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + query + ")(?![^<>]*>)(?![^&;]+;)", "g");
}
if(opts.resultsHighlight && query.length > 0){
this_data[opts.selectedItemProp] = this_data[opts.selectedItemProp].replace(regx,"<em>$1</em>");
}
if(!opts.formatList){
formatted = formatted.html(this_data[opts.selectedItemProp]);
} else {
formatted = opts.formatList.call(this, this_data, formatted);
}
results_ul.append(formatted);
delete this_data;
matchCount++;
if(opts.retrieveLimit && opts.retrieveLimit == matchCount ){ break; }
}
}
selections_holder.removeClass("loading");
if(matchCount <= 0){
results_ul.html('<li class="as-message">'+opts.emptyText+'</li>');
}
results_ul.css("width", selections_holder.outerWidth());
if (matchCount > 0 || !opts.showResultListWhenNoMatch) {
results_holder.show();
}
opts.resultsComplete.call(this);
}
function add_selected_item(data, num){
values_input.val((values_input.val()||",")+data[opts.selectedValuesProp]+",");
var item = $('<li class="as-selection-item" id="as-selection-'+num+'" data-value="' + data[opts.selectedValuesProp] + '"></li>').click(function(){
opts.selectionClick.call(this, $(this));
selections_holder.children().removeClass("selected");
$(this).addClass("selected");
}).mousedown(function(){ input_focus = false; });
var close = $('<a class="as-close">×</a>').click(function(){
values_input.val(values_input.val().replace(","+data[opts.selectedValuesProp]+",",","));
opts.selectionRemoved.call(this, item);
input_focus = true;
input.focus();
return false;
});
org_li.before(item.html(data[opts.selectedItemProp]).prepend(close));
opts.selectionAdded.call(this, org_li.prev(), data[opts.selectedValuesProp]);
return org_li.prev();
}
function moveSelection(direction){
if($(":visible",results_holder).length > 0){
var lis = $("li", results_holder);
if(direction == "down"){
var start = lis.eq(0);
} else {
var start = lis.filter(":last");
}
var active = $("li.active:first", results_holder);
if(active.length > 0){
if(direction == "down"){
start = active.next();
} else {
start = active.prev();
}
}
lis.removeClass("active");
start.addClass("active");
}
}
function abortRequest() {
if (request) {
request.abort();
request = null;
}
}
});
}
};
})(jQuery);