forked from Pixabay/jQuery-tagEditor
-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathjquery.tag-editor.js
338 lines (305 loc) · 17.5 KB
/
jquery.tag-editor.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
/*
jQuery tagEditor v1.0.13
Copyright (c) 2014 Simon Steinberger / Pixabay
GitHub: https://github.com/Pixabay/jQuery-tagEditor
License: http://www.opensource.org/licenses/mit-license.php
*/
(function($){
// auto grow input (stackoverflow.com/questions/931207)
$.fn.tagEditorInput=function(){var t=" ",e=$(this),n=parseInt(e.css("fontSize")),i=$("<span/>").css({position:"absolute",top:-9999,left:-9999,width:"auto",fontSize:e.css("fontSize"),fontFamily:e.css("fontFamily"),fontWeight:e.css("fontWeight"),letterSpacing:e.css("letterSpacing"),whiteSpace:"nowrap"}),s=function(){if(t!==(t=e.val())){i.html(t.replace(/&/g,"&").replace(/\s/g," ").replace(/</g,"<").replace(/>/g,">"));var s=i.width()+n;20>s&&(s=20),s!=e.width()&&e.width(s)}};return i.insertAfter(e),e.bind("keyup keydown focus",s)};
// plugin with val as parameter for public methods
$.fn.tagEditor = function(options, val, blur){
// build options dictionary with default values
var blur_result, o = $.extend({}, $.fn.tagEditor.defaults, options), selector = this;
// store regex and default delimiter in options for later use
o.dregex = new RegExp('['+o.delimiter.replace('-', '\-')+']', 'g');
// public methods
if (typeof options == 'string') {
// depending on selector, response may contain tag lists of multiple editor instances
var response = [];
selector.each(function(){
// the editor is the next sibling to the hidden, original field
var el = $(this), o = el.data('options'), ed = el.next('.tag-editor');
if (options == 'getTags')
response.push({field: el[0], editor: ed, tags: ed.data('tags')});
else if (options == 'addTag') {
// insert new tag
$('<li><div class="tag-editor-spacer"> '+o.delimiter[0]+'</div><div class="tag-editor-tag"></div><div class="tag-editor-delete"><i></i></div></li>').appendTo(ed).find('.tag-editor-tag')
.html('<input type="text" maxlength="'+o.maxLength+'">').addClass('active').find('input').val(val).blur();
if (!blur) ed.click();
else $('.placeholder', ed).remove();
} else if (options == 'removeTag') {
// trigger delete on matching tag, then click editor to create a new tag
$('.tag-editor-tag', ed).filter(function(){return $(this).html()==val;}).closest('li').find('.tag-editor-delete').click();
if (!blur) ed.click();
} else if (options == 'destroy') {
el.removeClass('tag-editor-hidden-src').removeData('options').off('focus.tag-editor').next('.tag-editor').remove();
}
});
return options == 'getTags' ? response : this;
}
// delete selected tags on backspace, delete, ctrl+x
function delete_selected_tags(e){
if (e.which == 8 || e.which == 46 || e.ctrlKey && e.which == 88) {
try {
var sel = getSelection(), el = $(sel.getRangeAt(0).commonAncestorContainer);
} catch(e){ el = 0; }
if (el && el.hasClass('tag-editor')) {
var tags = [], splits = sel.toString().split(el.prev().data('options').dregex);
for (i=0; i<splits.length; i++){ var tag = $.trim(splits[i]); if (tag) tags.push(tag); }
$('.tag-editor-tag', el).each(function(){
if (~$.inArray($(this).html(), tags)) $(this).closest('li').find('.tag-editor-delete').click();
});
}
}
}
if (window.getSelection) $(document).off('keydown.tag-editor').on('keydown.tag-editor', delete_selected_tags);
return selector.each(function(){
var el = $(this), tag_list = []; // cache current tags
// create editor (ed) instance
var ed = $('<ul '+(o.clickDelete ? 'oncontextmenu="return false;" ' : '')+'class="tag-editor"></ul>').insertAfter(el);
el.addClass('tag-editor-hidden-src') // hide original field
.data('options', o) // set data on hidden field
.on('focus.tag-editor', function(){ ed.click(); }); // simulate tabindex
// add dummy item for min-height on empty editor
ed.append('<li style="width:1px"> </li>');
// markup for new tag
var new_tag = '<li><div class="tag-editor-spacer"> '+o.delimiter[0]+'</div><div class="tag-editor-tag"></div><div class="tag-editor-delete"><i></i></div></li>';
// helper: update global data
function set_placeholder(){
if (o.placeholder && !tag_list.length && !$('.deleted, .placeholder, input', ed).length)
ed.append('<li class="placeholder"><div>'+o.placeholder+'</div></li>');
}
// helper: update global data
function update_globals(init){
var old_tags = tag_list.toString();
tag_list = $('.tag-editor-tag:not(.deleted)', ed).map(function(i, e) {
var val = $.trim($(this).hasClass('active') ? $(this).find('input').val() : $(e).text());
if (val) return val;
}).get();
ed.data('tags', tag_list);
el.val(tag_list.join(o.delimiter[0]));
// change callback except for plugin init
if (!init) if (old_tags != tag_list.toString()) o.onChange(el, ed, tag_list);
set_placeholder();
}
ed.click(function(e, closest_tag){
var d, dist = 99999, loc;
// do not create tag when user selects tags by text selection
if (window.getSelection && getSelection() != '') return;
blur_result = true
$('input:focus', ed).blur();
if (!blur_result) return false;
blur_result = true
// always remove placeholder on click
$('.placeholder', ed).remove();
if (closest_tag && closest_tag.length)
loc = 'before';
else {
// calculate tag closest to click position
$('.tag-editor-tag', ed).each(function(){
var tag = $(this), to = tag.offset(), tag_x = to.left, tag_y = to.top;
if (e.pageY >= tag_y && e.pageY <= tag_y+tag.height()) {
if (e.pageX < tag_x) loc = 'before', d = tag_x - e.pageX;
else loc = 'after', d = e.pageX - tag_x - tag.width();
if (d < dist) dist = d, closest_tag = tag;
}
});
}
if (loc == 'before') {
$(new_tag).insertBefore(closest_tag.closest('li')).find('.tag-editor-tag').click();
} else if (loc == 'after')
$(new_tag).insertAfter(closest_tag.closest('li')).find('.tag-editor-tag').click();
else // empty editor
$(new_tag).appendTo(ed).find('.tag-editor-tag').click();
return false;
});
ed.on('click', '.tag-editor-delete', function(e){
// delete icon is hidden when input is visible; place cursor near invisible delete icon on click
if ($(this).prev().hasClass('active')) { $(this).closest('li').find('input').caret(-1); return false; }
var li = $(this).closest('li'), tag = li.find('.tag-editor-tag');
if (o.beforeTagDelete(el, ed, tag_list, tag.html()) === false) return false;
tag.addClass('deleted').animate({width: 0}, 175, function(){ li.remove(); set_placeholder(); });
update_globals();
return false;
});
// delete on right mouse click or ctrl+click
if (o.clickDelete)
ed.on('mousedown', '.tag-editor-tag', function(e){
if (e.ctrlKey || e.which > 1) {
var li = $(this).closest('li'), tag = li.find('.tag-editor-tag');
if (o.beforeTagDelete(el, ed, tag_list, tag.html()) === false) return false;
tag.addClass('deleted').animate({width: 0}, 175, function(){ li.remove(); set_placeholder(); });
update_globals();
return false;
}
});
ed.on('click', '.tag-editor-tag', function(e){
// delete on right click or ctrl+click -> exit
if (o.clickDelete && (e.ctrlKey || e.which > 1)) return false;
if (!$(this).hasClass('active')) {
var tag = $(this).html();
// guess cursor position in text input
var left_percent = Math.abs(($(this).offset().left - e.pageX)/$(this).width()), caret_pos = parseInt(tag.length*left_percent),
input = $(this).html('<input type="text" maxlength="'+o.maxLength+'" value="'+tag+'">').addClass('active').find('input');
input.data('old_tag', tag).tagEditorInput().focus().caret(caret_pos);
if (o.autocomplete) {
var aco = $.extend({}, o.autocomplete);
// extend user provided autocomplete select method
var ac_select = 'select' in aco ? o.autocomplete.select : '';
aco.select = function(){ if (ac_select) ac_select(); setTimeout(function(){ $('.active', ed).find('input').focus(); }, 20); };
input.autocomplete(aco);
}
}
return false;
});
// helper: split into multiple tags, e.g. after paste
function split_cleanup(input){
var li = input.closest('li'), sub_tags = input.val().replace(/ +/, ' ').split(o.dregex), old_tag = input.data('old_tag');
var old_tags = tag_list.slice(0); // copy tag_list
for (i=0; i<sub_tags.length; i++) {
tag = $.trim(sub_tags[i]).slice(0, o.maxLength);
if (tag) {
if (o.forceLowercase) tag = tag.toLowerCase();
tag = o.beforeTagSave(el, ed, old_tags, old_tag, tag) || tag;
// remove duplicates
if (~$.inArray(tag, old_tags))
$('.tag-editor-tag', ed).each(function(){ if ($(this).html() == tag) $(this).closest('li').remove(); });
old_tags.push(tag);
li.before('<li><div class="tag-editor-spacer"> '+o.delimiter[0]+'</div><div class="tag-editor-tag">'+tag+'</div><div class="tag-editor-delete"><i></i></div></li>');
}
}
input.attr('maxlength', o.maxLength).removeData('old_tag').val('').focus();
update_globals();
}
ed.on('blur', 'input', function(e){
var input = $(this), old_tag = input.data('old_tag'), tag = $.trim(input.val().replace(/ +/, ' ').replace(o.dregex, o.delimiter[0]));
if (!tag) {
if (old_tag && o.beforeTagDelete(el, ed, tag_list, old_tag) === false) {
input.val(old_tag).focus();
blur_result = false;
update_globals();
return;
}
try { input.closest('li').remove(); } catch(e){}
if (old_tag) update_globals();
}
else if (tag.indexOf(o.delimiter[0])>=0) { split_cleanup(input); return; }
else if (tag != old_tag) {
if (o.forceLowercase) tag = tag.toLowerCase();
tag = o.beforeTagSave(el, ed, tag_list, old_tag, tag) || tag;
// remove duplicates
$('.tag-editor-tag:not(.active)', ed).each(function(){ if ($(this).html() == tag) $(this).closest('li').remove(); });
}
input.parent().html(tag).removeClass('active');
if (tag != old_tag) update_globals();
set_placeholder();
});
var pasted_content;
ed.on('paste', 'input', function(e){
$(this).removeAttr('maxlength');
pasted_content = $(this);
setTimeout(function(){ split_cleanup(pasted_content); }, 30);
});
// keypress delimiter
var inp;
ed.on('keypress', 'input', function(e){
if (o.delimiter.indexOf(String.fromCharCode(e.which))>=0) {
inp = $(this);
setTimeout(function(){ split_cleanup(inp); }, 20);
}
});
ed.on('keydown', 'input', function(e){
var $t = $(this);
// left/up key + backspace key on empty field
if ((e.which == 37 || !o.autocomplete && e.which == 38) && !$t.caret() || e.which == 8 && !$t.val()) {
var prev_tag = $t.closest('li').prev('li').find('.tag-editor-tag');
if (prev_tag.length) prev_tag.click().find('input').caret(-1);
else if ($t.val()) $(new_tag).insertBefore($t.closest('li')).find('.tag-editor-tag').click();
return false;
}
// right/down key
else if ((e.which == 39 || !o.autocomplete && e.which == 40) && ($t.caret() == $t.val().length)) {
var next_tag = $t.closest('li').next('li').find('.tag-editor-tag');
if (next_tag.length) next_tag.click().find('input').caret(0);
else if ($t.val()) ed.click();
return false;
}
// tab key
else if (e.which == 9) {
// shift+tab
if (e.shiftKey) {
var prev_tag = $t.closest('li').prev('li').find('.tag-editor-tag');
if (prev_tag.length) prev_tag.click().find('input').caret(0);
else if ($t.val()) $(new_tag).insertBefore($t.closest('li')).find('.tag-editor-tag').click();
// allow tabbing to previous element
else {
el.attr('disabled', 'disabled');
setTimeout(function(){ el.removeAttr('disabled'); }, 30);
return;
}
return false;
// tab
} else {
var next_tag = $t.closest('li').next('li').find('.tag-editor-tag');
if (next_tag.length) next_tag.click().find('input').caret(0);
else if ($t.val()) ed.click();
else return; // allow tabbing to next element
return false;
}
}
// del key
else if (e.which == 46 && (!$.trim($t.val()) || ($t.caret() == $t.val().length))) {
var next_tag = $t.closest('li').next('li').find('.tag-editor-tag');
if (next_tag.length) next_tag.click().find('input').caret(0);
else if ($t.val()) ed.click();
return false;
}
// enter key
else if (e.which == 13) {
ed.trigger('click', [$t.closest('li').next('li').find('.tag-editor-tag')]);
return false;
}
// pos1
else if (e.which == 36 && !$t.caret()) ed.find('.tag-editor-tag').first().click();
// end
else if (e.which == 35 && $t.caret() == $t.val().length) ed.find('.tag-editor-tag').last().click();
// esc
else if (e.which == 27) {
$t.val($t.data('old_tag') ? $t.data('old_tag') : '').blur();
return false;
}
});
// create initial tags
var tags = o.initialTags.length ? o.initialTags : el.val().split(o.dregex);
for (i=0; i<tags.length; i++) {
var tag = $.trim(tags[i].replace(/ +/, ' '));
if (tag) {
if (o.forceLowercase) tag = tag.toLowerCase();
tag_list.push(tag);
ed.append('<li><div class="tag-editor-spacer"> '+o.delimiter[0]+'</div><div class="tag-editor-tag">'+tag+'</div><div class="tag-editor-delete"><i></i></div></li>');
}
}
update_globals(true); // true -> no onChange callback
// init sortable
if (o.sortable && $.fn.sortable) ed.sortable({
distance: 5, cancel: '.tag-editor-spacer, input', helper: 'clone',
update: function(){ update_globals(); }
});
});
};
$.fn.tagEditor.defaults = {
initialTags: [],
maxLength: 50,
delimiter: ',;',
placeholder: '',
forceLowercase: true,
clickDelete: false,
sortable: true, // jQuery UI sortable
autocomplete: null, // options dict for jQuery UI autocomplete
// callbacks
onChange: function(){},
beforeTagSave: function(){},
beforeTagDelete: function(){}
};
}(jQuery));