attributes.js
19 KB
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
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
"use strict";
/**
* Methods for getting and modifying attributes.
*
* @module cheerio/attributes
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.is = exports.toggleClass = exports.removeClass = exports.addClass = exports.hasClass = exports.removeAttr = exports.val = exports.data = exports.prop = exports.attr = void 0;
var static_1 = require("../static");
var utils_1 = require("../utils");
var hasOwn = Object.prototype.hasOwnProperty;
var rspace = /\s+/;
var dataAttrPrefix = 'data-';
/*
* Lookup table for coercing string data-* attributes to their corresponding
* JavaScript primitives
*/
var primitives = {
null: null,
true: true,
false: false,
};
// Attributes that are booleans
var rboolean = /^(?:autofocus|autoplay|async|checked|controls|defer|disabled|hidden|loop|multiple|open|readonly|required|scoped|selected)$/i;
// Matches strings that look like JSON objects or arrays
var rbrace = /^(?:{[\w\W]*}|\[[\w\W]*])$/;
function getAttr(elem, name) {
var _a;
if (!elem || !utils_1.isTag(elem))
return undefined;
(_a = elem.attribs) !== null && _a !== void 0 ? _a : (elem.attribs = {});
// Return the entire attribs object if no attribute specified
if (!name) {
return elem.attribs;
}
if (hasOwn.call(elem.attribs, name)) {
// Get the (decoded) attribute
return rboolean.test(name) ? name : elem.attribs[name];
}
// Mimic the DOM and return text content as value for `option's`
if (elem.name === 'option' && name === 'value') {
return static_1.text(elem.children);
}
// Mimic DOM with default value for radios/checkboxes
if (elem.name === 'input' &&
(elem.attribs.type === 'radio' || elem.attribs.type === 'checkbox') &&
name === 'value') {
return 'on';
}
return undefined;
}
/**
* Sets the value of an attribute. The attribute will be deleted if the value is `null`.
*
* @private
* @param el - The element to set the attribute on.
* @param name - The attribute's name.
* @param value - The attribute's value.
*/
function setAttr(el, name, value) {
if (value === null) {
removeAttribute(el, name);
}
else {
el.attribs[name] = "" + value;
}
}
function attr(name, value) {
// Set the value (with attr map support)
if (typeof name === 'object' || value !== undefined) {
if (typeof value === 'function') {
if (typeof name !== 'string') {
{
throw new Error('Bad combination of arguments.');
}
}
return utils_1.domEach(this, function (i, el) {
if (utils_1.isTag(el))
setAttr(el, name, value.call(el, i, el.attribs[name]));
});
}
return utils_1.domEach(this, function (_, el) {
if (!utils_1.isTag(el))
return;
if (typeof name === 'object') {
Object.keys(name).forEach(function (objName) {
var objValue = name[objName];
setAttr(el, objName, objValue);
});
}
else {
setAttr(el, name, value);
}
});
}
return arguments.length > 1 ? this : getAttr(this[0], name);
}
exports.attr = attr;
/**
* Gets a node's prop.
*
* @private
* @category Attributes
* @param el - Elenent to get the prop of.
* @param name - Name of the prop.
* @returns The prop's value.
*/
function getProp(el, name) {
if (!el || !utils_1.isTag(el))
return;
return name in el
? // @ts-expect-error TS doesn't like us accessing the value directly here.
el[name]
: rboolean.test(name)
? getAttr(el, name) !== undefined
: getAttr(el, name);
}
/**
* Sets the value of a prop.
*
* @private
* @param el - The element to set the prop on.
* @param name - The prop's name.
* @param value - The prop's value.
*/
function setProp(el, name, value) {
if (name in el) {
// @ts-expect-error Overriding value
el[name] = value;
}
else {
setAttr(el, name, rboolean.test(name) ? (value ? '' : null) : "" + value);
}
}
function prop(name, value) {
if (typeof name === 'string' && value === undefined) {
switch (name) {
case 'style': {
var property_1 = this.css();
var keys = Object.keys(property_1);
keys.forEach(function (p, i) {
property_1[i] = p;
});
property_1.length = keys.length;
return property_1;
}
case 'tagName':
case 'nodeName': {
var el = this[0];
return utils_1.isTag(el) ? el.name.toUpperCase() : undefined;
}
case 'outerHTML':
return this.clone().wrap('<container />').parent().html();
case 'innerHTML':
return this.html();
default:
return getProp(this[0], name);
}
}
if (typeof name === 'object' || value !== undefined) {
if (typeof value === 'function') {
if (typeof name === 'object') {
throw new Error('Bad combination of arguments.');
}
return utils_1.domEach(this, function (j, el) {
if (utils_1.isTag(el))
setProp(el, name, value.call(el, j, getProp(el, name)));
});
}
return utils_1.domEach(this, function (__, el) {
if (!utils_1.isTag(el))
return;
if (typeof name === 'object') {
Object.keys(name).forEach(function (key) {
var val = name[key];
setProp(el, key, val);
});
}
else {
setProp(el, name, value);
}
});
}
return undefined;
}
exports.prop = prop;
/**
* Sets the value of a data attribute.
*
* @private
* @param el - The element to set the data attribute on.
* @param name - The data attribute's name.
* @param value - The data attribute's value.
*/
function setData(el, name, value) {
var _a;
var elem = el;
(_a = elem.data) !== null && _a !== void 0 ? _a : (elem.data = {});
if (typeof name === 'object')
Object.assign(elem.data, name);
else if (typeof name === 'string' && value !== undefined) {
elem.data[name] = value;
}
}
/**
* Read the specified attribute from the equivalent HTML5 `data-*` attribute,
* and (if present) cache the value in the node's internal data store. If no
* attribute name is specified, read *all* HTML5 `data-*` attributes in this manner.
*
* @private
* @category Attributes
* @param el - Elenent to get the data attribute of.
* @param name - Name of the data attribute.
* @returns The data attribute's value, or a map with all of the data attribute.
*/
function readData(el, name) {
var domNames;
var jsNames;
var value;
if (name == null) {
domNames = Object.keys(el.attribs).filter(function (attrName) {
return attrName.startsWith(dataAttrPrefix);
});
jsNames = domNames.map(function (domName) {
return utils_1.camelCase(domName.slice(dataAttrPrefix.length));
});
}
else {
domNames = [dataAttrPrefix + utils_1.cssCase(name)];
jsNames = [name];
}
for (var idx = 0; idx < domNames.length; ++idx) {
var domName = domNames[idx];
var jsName = jsNames[idx];
if (hasOwn.call(el.attribs, domName) &&
!hasOwn.call(el.data, jsName)) {
value = el.attribs[domName];
if (hasOwn.call(primitives, value)) {
value = primitives[value];
}
else if (value === String(Number(value))) {
value = Number(value);
}
else if (rbrace.test(value)) {
try {
value = JSON.parse(value);
}
catch (e) {
/* Ignore */
}
}
el.data[jsName] = value;
}
}
return name == null ? el.data : value;
}
function data(name, value) {
var _a;
var elem = this[0];
if (!elem || !utils_1.isTag(elem))
return;
var dataEl = elem;
(_a = dataEl.data) !== null && _a !== void 0 ? _a : (dataEl.data = {});
// Return the entire data object if no data specified
if (!name) {
return readData(dataEl);
}
// Set the value (with attr map support)
if (typeof name === 'object' || value !== undefined) {
utils_1.domEach(this, function (_, el) {
if (utils_1.isTag(el))
if (typeof name === 'object')
setData(el, name);
else
setData(el, name, value);
});
return this;
}
if (hasOwn.call(dataEl.data, name)) {
return dataEl.data[name];
}
return readData(dataEl, name);
}
exports.data = data;
function val(value) {
var querying = arguments.length === 0;
var element = this[0];
if (!element || !utils_1.isTag(element))
return querying ? undefined : this;
switch (element.name) {
case 'textarea':
return this.text(value);
case 'select': {
var option = this.find('option:selected');
if (!querying) {
if (this.attr('multiple') == null && typeof value === 'object') {
return this;
}
this.find('option').removeAttr('selected');
var values = typeof value !== 'object' ? [value] : value;
for (var i = 0; i < values.length; i++) {
this.find("option[value=\"" + values[i] + "\"]").attr('selected', '');
}
return this;
}
return this.attr('multiple')
? option.toArray().map(function (el) { return static_1.text(el.children); })
: option.attr('value');
}
case 'input':
case 'option':
return querying
? this.attr('value')
: this.attr('value', value);
}
return undefined;
}
exports.val = val;
/**
* Remove an attribute.
*
* @private
* @param elem - Node to remove attribute from.
* @param name - Name of the attribute to remove.
*/
function removeAttribute(elem, name) {
if (!elem.attribs || !hasOwn.call(elem.attribs, name))
return;
delete elem.attribs[name];
}
/**
* Splits a space-separated list of names to individual names.
*
* @category Attributes
* @param names - Names to split.
* @returns - Split names.
*/
function splitNames(names) {
return names ? names.trim().split(rspace) : [];
}
/**
* Method for removing attributes by `name`.
*
* @category Attributes
* @example
*
* ```js
* $('.pear').removeAttr('class').html();
* //=> <li>Pear</li>
*
* $('.apple').attr('id', 'favorite');
* $('.apple').removeAttr('id class').html();
* //=> <li>Apple</li>
* ```
*
* @param name - Name of the attribute.
* @returns The instance itself.
* @see {@link https://api.jquery.com/removeAttr/}
*/
function removeAttr(name) {
var attrNames = splitNames(name);
var _loop_1 = function (i) {
utils_1.domEach(this_1, function (_, elem) {
if (utils_1.isTag(elem))
removeAttribute(elem, attrNames[i]);
});
};
var this_1 = this;
for (var i = 0; i < attrNames.length; i++) {
_loop_1(i);
}
return this;
}
exports.removeAttr = removeAttr;
/**
* Check to see if *any* of the matched elements have the given `className`.
*
* @category Attributes
* @example
*
* ```js
* $('.pear').hasClass('pear');
* //=> true
*
* $('apple').hasClass('fruit');
* //=> false
*
* $('li').hasClass('pear');
* //=> true
* ```
*
* @param className - Name of the class.
* @returns Indicates if an element has the given `className`.
* @see {@link https://api.jquery.com/hasClass/}
*/
function hasClass(className) {
return this.toArray().some(function (elem) {
var clazz = utils_1.isTag(elem) && elem.attribs.class;
var idx = -1;
if (clazz && className.length) {
while ((idx = clazz.indexOf(className, idx + 1)) > -1) {
var end = idx + className.length;
if ((idx === 0 || rspace.test(clazz[idx - 1])) &&
(end === clazz.length || rspace.test(clazz[end]))) {
return true;
}
}
}
return false;
});
}
exports.hasClass = hasClass;
/**
* Adds class(es) to all of the matched elements. Also accepts a `function`.
*
* @category Attributes
* @example
*
* ```js
* $('.pear').addClass('fruit').html();
* //=> <li class="pear fruit">Pear</li>
*
* $('.apple').addClass('fruit red').html();
* //=> <li class="apple fruit red">Apple</li>
* ```
*
* @param value - Name of new class.
* @returns The instance itself.
* @see {@link https://api.jquery.com/addClass/}
*/
function addClass(value) {
// Support functions
if (typeof value === 'function') {
return utils_1.domEach(this, function (i, el) {
if (utils_1.isTag(el)) {
var className = el.attribs.class || '';
addClass.call([el], value.call(el, i, className));
}
});
}
// Return if no value or not a string or function
if (!value || typeof value !== 'string')
return this;
var classNames = value.split(rspace);
var numElements = this.length;
for (var i = 0; i < numElements; i++) {
var el = this[i];
// If selected element isn't a tag, move on
if (!utils_1.isTag(el))
continue;
// If we don't already have classes
var className = getAttr(el, 'class');
if (!className) {
setAttr(el, 'class', classNames.join(' ').trim());
}
else {
var setClass = " " + className + " ";
// Check if class already exists
for (var j = 0; j < classNames.length; j++) {
var appendClass = classNames[j] + " ";
if (!setClass.includes(" " + appendClass))
setClass += appendClass;
}
setAttr(el, 'class', setClass.trim());
}
}
return this;
}
exports.addClass = addClass;
/**
* Removes one or more space-separated classes from the selected elements. If no
* `className` is defined, all classes will be removed. Also accepts a `function`.
*
* @category Attributes
* @example
*
* ```js
* $('.pear').removeClass('pear').html();
* //=> <li class="">Pear</li>
*
* $('.apple').addClass('red').removeClass().html();
* //=> <li class="">Apple</li>
* ```
*
* @param name - Name of the class. If not specified, removes all elements.
* @returns The instance itself.
* @see {@link https://api.jquery.com/removeClass/}
*/
function removeClass(name) {
// Handle if value is a function
if (typeof name === 'function') {
return utils_1.domEach(this, function (i, el) {
if (utils_1.isTag(el))
removeClass.call([el], name.call(el, i, el.attribs.class || ''));
});
}
var classes = splitNames(name);
var numClasses = classes.length;
var removeAll = arguments.length === 0;
return utils_1.domEach(this, function (_, el) {
if (!utils_1.isTag(el))
return;
if (removeAll) {
// Short circuit the remove all case as this is the nice one
el.attribs.class = '';
}
else {
var elClasses = splitNames(el.attribs.class);
var changed = false;
for (var j = 0; j < numClasses; j++) {
var index = elClasses.indexOf(classes[j]);
if (index >= 0) {
elClasses.splice(index, 1);
changed = true;
/*
* We have to do another pass to ensure that there are not duplicate
* classes listed
*/
j--;
}
}
if (changed) {
el.attribs.class = elClasses.join(' ');
}
}
});
}
exports.removeClass = removeClass;
/**
* Add or remove class(es) from the matched elements, depending on either the
* class's presence or the value of the switch argument. Also accepts a `function`.
*
* @category Attributes
* @example
*
* ```js
* $('.apple.green').toggleClass('fruit green red').html();
* //=> <li class="apple fruit red">Apple</li>
*
* $('.apple.green').toggleClass('fruit green red', true).html();
* //=> <li class="apple green fruit red">Apple</li>
* ```
*
* @param value - Name of the class. Can also be a function.
* @param stateVal - If specified the state of the class.
* @returns The instance itself.
* @see {@link https://api.jquery.com/toggleClass/}
*/
function toggleClass(value, stateVal) {
// Support functions
if (typeof value === 'function') {
return utils_1.domEach(this, function (i, el) {
if (utils_1.isTag(el)) {
toggleClass.call([el], value.call(el, i, el.attribs.class || '', stateVal), stateVal);
}
});
}
// Return if no value or not a string or function
if (!value || typeof value !== 'string')
return this;
var classNames = value.split(rspace);
var numClasses = classNames.length;
var state = typeof stateVal === 'boolean' ? (stateVal ? 1 : -1) : 0;
var numElements = this.length;
for (var i = 0; i < numElements; i++) {
var el = this[i];
// If selected element isn't a tag, move on
if (!utils_1.isTag(el))
continue;
var elementClasses = splitNames(el.attribs.class);
// Check if class already exists
for (var j = 0; j < numClasses; j++) {
// Check if the class name is currently defined
var index = elementClasses.indexOf(classNames[j]);
// Add if stateValue === true or we are toggling and there is no value
if (state >= 0 && index < 0) {
elementClasses.push(classNames[j]);
}
else if (state <= 0 && index >= 0) {
// Otherwise remove but only if the item exists
elementClasses.splice(index, 1);
}
}
el.attribs.class = elementClasses.join(' ');
}
return this;
}
exports.toggleClass = toggleClass;
/**
* Checks the current list of elements and returns `true` if *any* of the
* elements match the selector. If using an element or Cheerio selection,
* returns `true` if *any* of the elements match. If using a predicate function,
* the function is executed in the context of the selected element, so `this`
* refers to the current element.
*
* @category Attributes
* @param selector - Selector for the selection.
* @returns Whether or not the selector matches an element of the instance.
* @see {@link https://api.jquery.com/is/}
*/
function is(selector) {
if (selector) {
return this.filter(selector).length > 0;
}
return false;
}
exports.is = is;