Diffstat (limited to 'frontend/beta/js/MochiKit/Selector.js') (more/less context) (show whitespace changes)
-rw-r--r-- | frontend/beta/js/MochiKit/Selector.js | 431 |
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diff --git a/frontend/beta/js/MochiKit/Selector.js b/frontend/beta/js/MochiKit/Selector.js new file mode 100644 index 0000000..c385df7 --- a/dev/null +++ b/frontend/beta/js/MochiKit/Selector.js | |||
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1 | /*** | ||
2 | |||
3 | MochiKit.Selector 1.4 | ||
4 | |||
5 | See <http://mochikit.com/> for documentation, downloads, license, etc. | ||
6 | |||
7 | (c) 2005 Bob Ippolito and others. All rights Reserved. | ||
8 | |||
9 | ***/ | ||
10 | |||
11 | if (typeof(dojo) != 'undefined') { | ||
12 | dojo.provide('MochiKit.Selector'); | ||
13 | dojo.require('MochiKit.Base'); | ||
14 | dojo.require('MochiKit.DOM'); | ||
15 | dojo.require('MochiKit.Iter'); | ||
16 | } | ||
17 | |||
18 | if (typeof(JSAN) != 'undefined') { | ||
19 | JSAN.use("MochiKit.Base", []); | ||
20 | JSAN.use("MochiKit.DOM", []); | ||
21 | JSAN.use("MochiKit.Iter", []); | ||
22 | } | ||
23 | |||
24 | try { | ||
25 | if (typeof(MochiKit.Base) === 'undefined' || | ||
26 | typeof(MochiKit.DOM) === 'undefined' || | ||
27 | typeof(MochiKit.Iter) === 'undefined') { | ||
28 | throw ""; | ||
29 | } | ||
30 | } catch (e) { | ||
31 | throw "MochiKit.Selector depends on MochiKit.Base, MochiKit.DOM and MochiKit.Iter!"; | ||
32 | } | ||
33 | |||
34 | if (typeof(MochiKit.Selector) == 'undefined') { | ||
35 | MochiKit.Selector = {}; | ||
36 | } | ||
37 | |||
38 | MochiKit.Selector.NAME = "MochiKit.Selector"; | ||
39 | |||
40 | MochiKit.Selector.VERSION = "1.4"; | ||
41 | |||
42 | MochiKit.Selector.__repr__ = function () { | ||
43 | return "[" + this.NAME + " " + this.VERSION + "]"; | ||
44 | }; | ||
45 | |||
46 | MochiKit.Selector.toString = function () { | ||
47 | return this.__repr__(); | ||
48 | }; | ||
49 | |||
50 | MochiKit.Selector.EXPORT = [ | ||
51 | "Selector", | ||
52 | "findChildElements", | ||
53 | "findDocElements", | ||
54 | "$$" | ||
55 | ]; | ||
56 | |||
57 | MochiKit.Selector.EXPORT_OK = [ | ||
58 | ]; | ||
59 | |||
60 | MochiKit.Selector.Selector = function (expression) { | ||
61 | this.params = {classNames: [], pseudoClassNames: []}; | ||
62 | this.expression = expression.toString().replace(/(^\s+|\s+$)/g, ''); | ||
63 | this.parseExpression(); | ||
64 | this.compileMatcher(); | ||
65 | }; | ||
66 | |||
67 | MochiKit.Selector.Selector.prototype = { | ||
68 | /*** | ||
69 | |||
70 | Selector class: convenient object to make CSS selections. | ||
71 | |||
72 | ***/ | ||
73 | __class__: MochiKit.Selector.Selector, | ||
74 | |||
75 | /** @id MochiKit.Selector.Selector.prototype.parseExpression */ | ||
76 | parseExpression: function () { | ||
77 | function abort(message) { | ||
78 | throw 'Parse error in selector: ' + message; | ||
79 | } | ||
80 | |||
81 | if (this.expression == '') { | ||
82 | abort('empty expression'); | ||
83 | } | ||
84 | |||
85 | var repr = MochiKit.Base.repr; | ||
86 | var params = this.params; | ||
87 | var expr = this.expression; | ||
88 | var match, modifier, clause, rest; | ||
89 | while (match = expr.match(/^(.*)\[([a-z0-9_:-]+?)(?:([~\|!^$*]?=)(?:"([^"]*)"|([^\]\s]*)))?\]$/i)) { | ||
90 | params.attributes = params.attributes || []; | ||
91 | params.attributes.push({name: match[2], operator: match[3], value: match[4] || match[5] || ''}); | ||
92 | expr = match[1]; | ||
93 | } | ||
94 | |||
95 | if (expr == '*') { | ||
96 | return this.params.wildcard = true; | ||
97 | } | ||
98 | |||
99 | while (match = expr.match(/^([^a-z0-9_-])?([a-z0-9_-]+(?:\([^)]*\))?)(.*)/i)) { | ||
100 | modifier = match[1]; | ||
101 | clause = match[2]; | ||
102 | rest = match[3]; | ||
103 | switch (modifier) { | ||
104 | case '#': | ||
105 | params.id = clause; | ||
106 | break; | ||
107 | case '.': | ||
108 | params.classNames.push(clause); | ||
109 | break; | ||
110 | case ':': | ||
111 | params.pseudoClassNames.push(clause); | ||
112 | break; | ||
113 | case '': | ||
114 | case undefined: | ||
115 | params.tagName = clause.toUpperCase(); | ||
116 | break; | ||
117 | default: | ||
118 | abort(repr(expr)); | ||
119 | } | ||
120 | expr = rest; | ||
121 | } | ||
122 | |||
123 | if (expr.length > 0) { | ||
124 | abort(repr(expr)); | ||
125 | } | ||
126 | }, | ||
127 | |||
128 | /** @id MochiKit.Selector.Selector.prototype.buildMatchExpression */ | ||
129 | buildMatchExpression: function () { | ||
130 | var repr = MochiKit.Base.repr; | ||
131 | var params = this.params; | ||
132 | var conditions = []; | ||
133 | var clause, i; | ||
134 | |||
135 | function childElements(element) { | ||
136 | return "MochiKit.Base.filter(function (node) { return node.nodeType == 1; }, " + element + ".childNodes)"; | ||
137 | } | ||
138 | |||
139 | if (params.wildcard) { | ||
140 | conditions.push('true'); | ||
141 | } | ||
142 | if (clause = params.id) { | ||
143 | conditions.push('element.id == ' + repr(clause)); | ||
144 | } | ||
145 | if (clause = params.tagName) { | ||
146 | conditions.push('element.tagName.toUpperCase() == ' + repr(clause)); | ||
147 | } | ||
148 | if ((clause = params.classNames).length > 0) { | ||
149 | for (i = 0; i < clause.length; i++) { | ||
150 | conditions.push('MochiKit.DOM.hasElementClass(element, ' + repr(clause[i]) + ')'); | ||
151 | } | ||
152 | } | ||
153 | if ((clause = params.pseudoClassNames).length > 0) { | ||
154 | for (i = 0; i < clause.length; i++) { | ||
155 | var match = clause[i].match(/^([^(]+)(?:\((.*)\))?$/); | ||
156 | var pseudoClass = match[1]; | ||
157 | var pseudoClassArgument = match[2]; | ||
158 | switch (pseudoClass) { | ||
159 | case 'root': | ||
160 | conditions.push('element.nodeType == 9 || element === element.ownerDocument.documentElement'); break; | ||
161 | case 'nth-child': | ||
162 | case 'nth-last-child': | ||
163 | case 'nth-of-type': | ||
164 | case 'nth-last-of-type': | ||
165 | match = pseudoClassArgument.match(/^((?:(\d+)n\+)?(\d+)|odd|even)$/); | ||
166 | if (!match) { | ||
167 | throw "Invalid argument to pseudo element nth-child: " + pseudoClassArgument; | ||
168 | } | ||
169 | var a, b; | ||
170 | if (match[0] == 'odd') { | ||
171 | a = 2; | ||
172 | b = 1; | ||
173 | } else if (match[0] == 'even') { | ||
174 | a = 2; | ||
175 | b = 0; | ||
176 | } else { | ||
177 | a = match[2] && parseInt(match) || null; | ||
178 | b = parseInt(match[3]); | ||
179 | } | ||
180 | conditions.push('this.nthChild(element,' + a + ',' + b | ||
181 | + ',' + !!pseudoClass.match('^nth-last') // Reverse | ||
182 | + ',' + !!pseudoClass.match('of-type$') // Restrict to same tagName | ||
183 | + ')'); | ||
184 | break; | ||
185 | case 'first-child': | ||
186 | conditions.push('this.nthChild(element, null, 1)'); | ||
187 | break; | ||
188 | case 'last-child': | ||
189 | conditions.push('this.nthChild(element, null, 1, true)'); | ||
190 | break; | ||
191 | case 'first-of-type': | ||
192 | conditions.push('this.nthChild(element, null, 1, false, true)'); | ||
193 | break; | ||
194 | case 'last-of-type': | ||
195 | conditions.push('this.nthChild(element, null, 1, true, true)'); | ||
196 | break; | ||
197 | case 'only-child': | ||
198 | conditions.push(childElements('element.parentNode') + '.length == 1'); | ||
199 | break; | ||
200 | case 'only-of-type': | ||
201 | conditions.push('MochiKit.Base.filter(function (node) { return node.tagName == element.tagName; }, ' + childElements('element.parentNode') + ').length == 1'); | ||
202 | break; | ||
203 | case 'empty': | ||
204 | conditions.push('element.childNodes.length == 0'); | ||
205 | break; | ||
206 | case 'enabled': | ||
207 | conditions.push('(this.isUIElement(element) && element.disabled === false)'); | ||
208 | break; | ||
209 | case 'disabled': | ||
210 | conditions.push('(this.isUIElement(element) && element.disabled === true)'); | ||
211 | break; | ||
212 | case 'checked': | ||
213 | conditions.push('(this.isUIElement(element) && element.checked === true)'); | ||
214 | break; | ||
215 | case 'not': | ||
216 | var subselector = new MochiKit.Selector.Selector(pseudoClassArgument); | ||
217 | conditions.push('!( ' + subselector.buildMatchExpression() + ')') | ||
218 | break; | ||
219 | } | ||
220 | } | ||
221 | } | ||
222 | if (clause = params.attributes) { | ||
223 | MochiKit.Base.map(function (attribute) { | ||
224 | var value = 'MochiKit.DOM.getNodeAttribute(element, ' + repr(attribute.name) + ')'; | ||
225 | var splitValueBy = function (delimiter) { | ||
226 | return value + ' && ' + value + '.split(' + repr(delimiter) + ')'; | ||
227 | } | ||
228 | |||
229 | switch (attribute.operator) { | ||
230 | case '=': | ||
231 | conditions.push(value + ' == ' + repr(attribute.value)); | ||
232 | break; | ||
233 | case '~=': | ||
234 | conditions.push('MochiKit.Base.findValue(' + splitValueBy(' ') + ', ' + repr(attribute.value) + ') > -1'); | ||
235 | break; | ||
236 | case '^=': | ||
237 | conditions.push(value + '.substring(0, ' + attribute.value.length + ') == ' + repr(attribute.value)); | ||
238 | break; | ||
239 | case '$=': | ||
240 | conditions.push(value + '.substring(' + value + '.length - ' + attribute.value.length + ') == ' + repr(attribute.value)); | ||
241 | break; | ||
242 | case '*=': | ||
243 | conditions.push(value + '.match(' + repr(attribute.value) + ')'); | ||
244 | break; | ||
245 | case '|=': | ||
246 | conditions.push( | ||
247 | splitValueBy('-') + '[0].toUpperCase() == ' + repr(attribute.value.toUpperCase()) | ||
248 | ); | ||
249 | break; | ||
250 | case '!=': | ||
251 | conditions.push(value + ' != ' + repr(attribute.value)); | ||
252 | break; | ||
253 | case '': | ||
254 | case undefined: | ||
255 | conditions.push(value + ' != null'); | ||
256 | break; | ||
257 | default: | ||
258 | throw 'Unknown operator ' + attribute.operator + ' in selector'; | ||
259 | } | ||
260 | }, clause); | ||
261 | } | ||
262 | |||
263 | return conditions.join(' && '); | ||
264 | }, | ||
265 | |||
266 | /** @id MochiKit.Selector.Selector.prototype.compileMatcher */ | ||
267 | compileMatcher: function () { | ||
268 | this.match = new Function('element', 'if (!element.tagName) return false; \ | ||
269 | return ' + this.buildMatchExpression()); | ||
270 | }, | ||
271 | |||
272 | /** @id MochiKit.Selector.Selector.prototype.nthChild */ | ||
273 | nthChild: function (element, a, b, reverse, sametag){ | ||
274 | var siblings = MochiKit.Base.filter(function (node) { | ||
275 | return node.nodeType == 1; | ||
276 | }, element.parentNode.childNodes); | ||
277 | if (sametag) { | ||
278 | siblings = MochiKit.Base.filter(function (node) { | ||
279 | return node.tagName == element.tagName; | ||
280 | }, siblings); | ||
281 | } | ||
282 | if (reverse) { | ||
283 | siblings = MochiKit.Iter.reversed(siblings); | ||
284 | } | ||
285 | if (a) { | ||
286 | var actualIndex = MochiKit.Base.findIdentical(siblings, element); | ||
287 | return ((actualIndex + 1 - b) / a) % 1 == 0; | ||
288 | } else { | ||
289 | return b == MochiKit.Base.findIdentical(siblings, element) + 1; | ||
290 | } | ||
291 | }, | ||
292 | |||
293 | /** @id MochiKit.Selector.Selector.prototype.isUIElement */ | ||
294 | isUIElement: function (element) { | ||
295 | return findValue(['input', 'button', 'select', 'option', 'textarea', 'object'], | ||
296 | element.tagName.toLowerCase()) > -1; | ||
297 | }, | ||
298 | |||
299 | /** @id MochiKit.Selector.Selector.prototype.findElements */ | ||
300 | findElements: function (scope, axis) { | ||
301 | var element; | ||
302 | |||
303 | if (axis == undefined) { | ||
304 | axis = ""; | ||
305 | } | ||
306 | |||
307 | function inScope(element, scope) { | ||
308 | if (axis == "") { | ||
309 | return MochiKit.DOM.isChildNode(element, scope); | ||
310 | } else if (axis == ">") { | ||
311 | return element.parentNode == scope; | ||
312 | } else if (axis == "+") { | ||
313 | return element == nextSiblingElement(scope); | ||
314 | } else if (axis == "~") { | ||
315 | var sibling = scope; | ||
316 | while (sibling = nextSiblingElement(sibling)) { | ||
317 | if (element == sibling) { | ||
318 | return true; | ||
319 | } | ||
320 | } | ||
321 | return false; | ||
322 | } else { | ||
323 | throw "Invalid axis: " + axis; | ||
324 | } | ||
325 | } | ||
326 | |||
327 | if (element = MochiKit.DOM.getElement(this.params.id)) { | ||
328 | if (this.match(element)) { | ||
329 | if (!scope || inScope(element, scope)) { | ||
330 | return [element]; | ||
331 | } | ||
332 | } | ||
333 | } | ||
334 | |||
335 | function nextSiblingElement(node) { | ||
336 | node = node.nextSibling; | ||
337 | while (node && node.nodeType != 1) { | ||
338 | node = node.nextSibling; | ||
339 | } | ||
340 | return node; | ||
341 | } | ||
342 | |||
343 | if (axis == "") { | ||
344 | scope = (scope || currentDocument()).getElementsByTagName(this.params.tagName || '*'); | ||
345 | } else if (axis == ">") { | ||
346 | if (!scope) { | ||
347 | throw "> combinator not allowed without preceeding expression"; | ||
348 | } | ||
349 | scope = MochiKit.Base.filter(function (node) { | ||
350 | return node.nodeType == 1; | ||
351 | }, scope.childNodes); | ||
352 | } else if (axis == "+") { | ||
353 | if (!scope) { | ||
354 | throw "+ combinator not allowed without preceeding expression"; | ||
355 | } | ||
356 | scope = nextSiblingElement(scope) && [nextSiblingElement(scope)]; | ||
357 | } else if (axis == "~") { | ||
358 | if (!scope) { | ||
359 | throw "~ combinator not allowed without preceeding expression"; | ||
360 | } | ||
361 | var newscope = []; | ||
362 | while (nextSiblingElement(scope)) { | ||
363 | scope = nextSiblingElement(scope); | ||
364 | newscope.push(scope); | ||
365 | } | ||
366 | scope = newscope; | ||
367 | } | ||
368 | |||
369 | if (!scope) { | ||
370 | return []; | ||
371 | } | ||
372 | |||
373 | var results = MochiKit.Base.filter(MochiKit.Base.bind(function (scopeElt) { | ||
374 | return this.match(scopeElt); | ||
375 | }, this), scope); | ||
376 | |||
377 | return results; | ||
378 | }, | ||
379 | |||
380 | /** @id MochiKit.Selector.Selector.prototype.repr */ | ||
381 | repr: function () { | ||
382 | return 'Selector(' + this.expression + ')'; | ||
383 | }, | ||
384 | |||
385 | toString: MochiKit.Base.forwardCall("repr") | ||
386 | }; | ||
387 | |||
388 | MochiKit.Base.update(MochiKit.Selector, { | ||
389 | |||
390 | /** @id MochiKit.Selector.findChildElements */ | ||
391 | findChildElements: function (element, expressions) { | ||
392 | return MochiKit.Base.flattenArray(MochiKit.Base.map(function (expression) { | ||
393 | var nextScope = ""; | ||
394 | return MochiKit.Iter.reduce(function (results, expr) { | ||
395 | if (match = expr.match(/^[>+~]$/)) { | ||
396 | nextScope = match[0]; | ||
397 | return results; | ||
398 | } else { | ||
399 | var selector = new MochiKit.Selector.Selector(expr); | ||
400 | var elements = MochiKit.Iter.reduce(function (elements, result) { | ||
401 | return MochiKit.Base.extend(elements, selector.findElements(result || element, nextScope)); | ||
402 | }, results, []); | ||
403 | nextScope = ""; | ||
404 | return elements; | ||
405 | } | ||
406 | }, expression.replace(/(^\s+|\s+$)/g, '').split(/\s+/), [null]); | ||
407 | }, expressions)); | ||
408 | }, | ||
409 | |||
410 | findDocElements: function () { | ||
411 | return MochiKit.Selector.findChildElements(MochiKit.DOM.currentDocument(), arguments); | ||
412 | }, | ||
413 | |||
414 | __new__: function () { | ||
415 | var m = MochiKit.Base; | ||
416 | |||
417 | this.$$ = this.findDocElements; | ||
418 | |||
419 | this.EXPORT_TAGS = { | ||
420 | ":common": this.EXPORT, | ||
421 | ":all": m.concat(this.EXPORT, this.EXPORT_OK) | ||
422 | }; | ||
423 | |||
424 | m.nameFunctions(this); | ||
425 | } | ||
426 | }); | ||
427 | |||
428 | MochiKit.Selector.__new__(); | ||
429 | |||
430 | MochiKit.Base._exportSymbols(this, MochiKit.Selector); | ||
431 | |||