author | Giulio Cesare Solaroli <giulio.cesare@clipperz.com> | 2011-10-02 23:56:18 (UTC) |
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committer | Giulio Cesare Solaroli <giulio.cesare@clipperz.com> | 2011-10-02 23:56:18 (UTC) |
commit | ef68436ac04da078ffdcacd7e1f785473a303d45 (patch) (unidiff) | |
tree | c403752d66a2c4775f00affd4fa8431b29c5b68c /frontend/gamma/js/MochiKit/Selector.js | |
parent | 597ecfbc0249d83e1b856cbd558340c01237a360 (diff) | |
download | clipperz-ef68436ac04da078ffdcacd7e1f785473a303d45.zip clipperz-ef68436ac04da078ffdcacd7e1f785473a303d45.tar.gz clipperz-ef68436ac04da078ffdcacd7e1f785473a303d45.tar.bz2 |
First version of the newly restructured repository
Diffstat (limited to 'frontend/gamma/js/MochiKit/Selector.js') (more/less context) (ignore whitespace changes)
-rw-r--r-- | frontend/gamma/js/MochiKit/Selector.js | 387 |
1 files changed, 387 insertions, 0 deletions
diff --git a/frontend/gamma/js/MochiKit/Selector.js b/frontend/gamma/js/MochiKit/Selector.js new file mode 100644 index 0000000..6aec892 --- a/dev/null +++ b/frontend/gamma/js/MochiKit/Selector.js | |||
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1 | /*** | ||
2 | |||
3 | MochiKit.Selector 1.5 | ||
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 | MochiKit.Base._module('Selector', '1.5', ['Base', 'DOM', 'Iter']); | ||
12 | |||
13 | MochiKit.Selector.Selector = function (expression) { | ||
14 | this.params = {classNames: [], pseudoClassNames: []}; | ||
15 | this.expression = expression.toString().replace(/(^\s+|\s+$)/g, ''); | ||
16 | this.parseExpression(); | ||
17 | this.compileMatcher(); | ||
18 | }; | ||
19 | |||
20 | MochiKit.Selector.Selector.prototype = { | ||
21 | /*** | ||
22 | |||
23 | Selector class: convenient object to make CSS selections. | ||
24 | |||
25 | ***/ | ||
26 | __class__: MochiKit.Selector.Selector, | ||
27 | |||
28 | /** @id MochiKit.Selector.Selector.prototype.parseExpression */ | ||
29 | parseExpression: function () { | ||
30 | function abort(message) { | ||
31 | throw 'Parse error in selector: ' + message; | ||
32 | } | ||
33 | |||
34 | if (this.expression == '') { | ||
35 | abort('empty expression'); | ||
36 | } | ||
37 | |||
38 | var repr = MochiKit.Base.repr; | ||
39 | var params = this.params; | ||
40 | var expr = this.expression; | ||
41 | var match, modifier, clause, rest; | ||
42 | while (match = expr.match(/^(.*)\[([a-z0-9_:-]+?)(?:([~\|!^$*]?=)(?:"([^"]*)"|([^\]\s]*)))?\]$/i)) { | ||
43 | params.attributes = params.attributes || []; | ||
44 | params.attributes.push({name: match[2], operator: match[3], value: match[4] || match[5] || ''}); | ||
45 | expr = match[1]; | ||
46 | } | ||
47 | |||
48 | if (expr == '*') { | ||
49 | return this.params.wildcard = true; | ||
50 | } | ||
51 | |||
52 | while (match = expr.match(/^([^a-z0-9_-])?([a-z0-9_-]+(?:\([^)]*\))?)(.*)/i)) { | ||
53 | modifier = match[1]; | ||
54 | clause = match[2]; | ||
55 | rest = match[3]; | ||
56 | switch (modifier) { | ||
57 | case '#': | ||
58 | params.id = clause; | ||
59 | break; | ||
60 | case '.': | ||
61 | params.classNames.push(clause); | ||
62 | break; | ||
63 | case ':': | ||
64 | params.pseudoClassNames.push(clause); | ||
65 | break; | ||
66 | case '': | ||
67 | case undefined: | ||
68 | params.tagName = clause.toUpperCase(); | ||
69 | break; | ||
70 | default: | ||
71 | abort(repr(expr)); | ||
72 | } | ||
73 | expr = rest; | ||
74 | } | ||
75 | |||
76 | if (expr.length > 0) { | ||
77 | abort(repr(expr)); | ||
78 | } | ||
79 | }, | ||
80 | |||
81 | /** @id MochiKit.Selector.Selector.prototype.buildMatchExpression */ | ||
82 | buildMatchExpression: function () { | ||
83 | var repr = MochiKit.Base.repr; | ||
84 | var params = this.params; | ||
85 | var conditions = []; | ||
86 | var clause, i; | ||
87 | |||
88 | function childElements(element) { | ||
89 | return "MochiKit.Base.filter(function (node) { return node.nodeType == 1; }, " + element + ".childNodes)"; | ||
90 | } | ||
91 | |||
92 | if (params.wildcard) { | ||
93 | conditions.push('true'); | ||
94 | } | ||
95 | if (clause = params.id) { | ||
96 | conditions.push('element.id == ' + repr(clause)); | ||
97 | } | ||
98 | if (clause = params.tagName) { | ||
99 | conditions.push('element.tagName.toUpperCase() == ' + repr(clause)); | ||
100 | } | ||
101 | if ((clause = params.classNames).length > 0) { | ||
102 | for (i = 0; i < clause.length; i++) { | ||
103 | conditions.push('MochiKit.DOM.hasElementClass(element, ' + repr(clause[i]) + ')'); | ||
104 | } | ||
105 | } | ||
106 | if ((clause = params.pseudoClassNames).length > 0) { | ||
107 | for (i = 0; i < clause.length; i++) { | ||
108 | var match = clause[i].match(/^([^(]+)(?:\((.*)\))?$/); | ||
109 | var pseudoClass = match[1]; | ||
110 | var pseudoClassArgument = match[2]; | ||
111 | switch (pseudoClass) { | ||
112 | case 'root': | ||
113 | conditions.push('element.nodeType == 9 || element === element.ownerDocument.documentElement'); break; | ||
114 | case 'nth-child': | ||
115 | case 'nth-last-child': | ||
116 | case 'nth-of-type': | ||
117 | case 'nth-last-of-type': | ||
118 | match = pseudoClassArgument.match(/^((?:(\d+)n\+)?(\d+)|odd|even)$/); | ||
119 | if (!match) { | ||
120 | throw "Invalid argument to pseudo element nth-child: " + pseudoClassArgument; | ||
121 | } | ||
122 | var a, b; | ||
123 | if (match[0] == 'odd') { | ||
124 | a = 2; | ||
125 | b = 1; | ||
126 | } else if (match[0] == 'even') { | ||
127 | a = 2; | ||
128 | b = 0; | ||
129 | } else { | ||
130 | a = match[2] && parseInt(match) || null; | ||
131 | b = parseInt(match[3]); | ||
132 | } | ||
133 | conditions.push('this.nthChild(element,' + a + ',' + b | ||
134 | + ',' + !!pseudoClass.match('^nth-last') // Reverse | ||
135 | + ',' + !!pseudoClass.match('of-type$') // Restrict to same tagName | ||
136 | + ')'); | ||
137 | break; | ||
138 | case 'first-child': | ||
139 | conditions.push('this.nthChild(element, null, 1)'); | ||
140 | break; | ||
141 | case 'last-child': | ||
142 | conditions.push('this.nthChild(element, null, 1, true)'); | ||
143 | break; | ||
144 | case 'first-of-type': | ||
145 | conditions.push('this.nthChild(element, null, 1, false, true)'); | ||
146 | break; | ||
147 | case 'last-of-type': | ||
148 | conditions.push('this.nthChild(element, null, 1, true, true)'); | ||
149 | break; | ||
150 | case 'only-child': | ||
151 | conditions.push(childElements('element.parentNode') + '.length == 1'); | ||
152 | break; | ||
153 | case 'only-of-type': | ||
154 | conditions.push('MochiKit.Base.filter(function (node) { return node.tagName == element.tagName; }, ' + childElements('element.parentNode') + ').length == 1'); | ||
155 | break; | ||
156 | case 'empty': | ||
157 | conditions.push('element.childNodes.length == 0'); | ||
158 | break; | ||
159 | case 'enabled': | ||
160 | conditions.push('(this.isUIElement(element) && element.disabled === false)'); | ||
161 | break; | ||
162 | case 'disabled': | ||
163 | conditions.push('(this.isUIElement(element) && element.disabled === true)'); | ||
164 | break; | ||
165 | case 'checked': | ||
166 | conditions.push('(this.isUIElement(element) && element.checked === true)'); | ||
167 | break; | ||
168 | case 'not': | ||
169 | var subselector = new MochiKit.Selector.Selector(pseudoClassArgument); | ||
170 | conditions.push('!( ' + subselector.buildMatchExpression() + ')') | ||
171 | break; | ||
172 | } | ||
173 | } | ||
174 | } | ||
175 | if (clause = params.attributes) { | ||
176 | MochiKit.Base.map(function (attribute) { | ||
177 | var value = 'MochiKit.DOM.getNodeAttribute(element, ' + repr(attribute.name) + ')'; | ||
178 | var splitValueBy = function (delimiter) { | ||
179 | return value + '.split(' + repr(delimiter) + ')'; | ||
180 | } | ||
181 | conditions.push(value + ' != null'); | ||
182 | switch (attribute.operator) { | ||
183 | case '=': | ||
184 | conditions.push(value + ' == ' + repr(attribute.value)); | ||
185 | break; | ||
186 | case '~=': | ||
187 | conditions.push('MochiKit.Base.findValue(' + splitValueBy(' ') + ', ' + repr(attribute.value) + ') > -1'); | ||
188 | break; | ||
189 | case '^=': | ||
190 | conditions.push(value + '.substring(0, ' + attribute.value.length + ') == ' + repr(attribute.value)); | ||
191 | break; | ||
192 | case '$=': | ||
193 | conditions.push(value + '.substring(' + value + '.length - ' + attribute.value.length + ') == ' + repr(attribute.value)); | ||
194 | break; | ||
195 | case '*=': | ||
196 | conditions.push(value + '.match(' + repr(attribute.value) + ')'); | ||
197 | break; | ||
198 | case '|=': | ||
199 | conditions.push(splitValueBy('-') + '[0].toUpperCase() == ' + repr(attribute.value.toUpperCase())); | ||
200 | break; | ||
201 | case '!=': | ||
202 | conditions.push(value + ' != ' + repr(attribute.value)); | ||
203 | break; | ||
204 | case '': | ||
205 | case undefined: | ||
206 | // Condition already added above | ||
207 | break; | ||
208 | default: | ||
209 | throw 'Unknown operator ' + attribute.operator + ' in selector'; | ||
210 | } | ||
211 | }, clause); | ||
212 | } | ||
213 | |||
214 | return conditions.join(' && '); | ||
215 | }, | ||
216 | |||
217 | /** @id MochiKit.Selector.Selector.prototype.compileMatcher */ | ||
218 | compileMatcher: function () { | ||
219 | var code = 'return (!element.tagName) ? false : ' + | ||
220 | this.buildMatchExpression() + ';'; | ||
221 | this.match = new Function('element', code); | ||
222 | }, | ||
223 | |||
224 | /** @id MochiKit.Selector.Selector.prototype.nthChild */ | ||
225 | nthChild: function (element, a, b, reverse, sametag){ | ||
226 | var siblings = MochiKit.Base.filter(function (node) { | ||
227 | return node.nodeType == 1; | ||
228 | }, element.parentNode.childNodes); | ||
229 | if (sametag) { | ||
230 | siblings = MochiKit.Base.filter(function (node) { | ||
231 | return node.tagName == element.tagName; | ||
232 | }, siblings); | ||
233 | } | ||
234 | if (reverse) { | ||
235 | siblings = MochiKit.Iter.reversed(siblings); | ||
236 | } | ||
237 | if (a) { | ||
238 | var actualIndex = MochiKit.Base.findIdentical(siblings, element); | ||
239 | return ((actualIndex + 1 - b) / a) % 1 == 0; | ||
240 | } else { | ||
241 | return b == MochiKit.Base.findIdentical(siblings, element) + 1; | ||
242 | } | ||
243 | }, | ||
244 | |||
245 | /** @id MochiKit.Selector.Selector.prototype.isUIElement */ | ||
246 | isUIElement: function (element) { | ||
247 | return MochiKit.Base.findValue(['input', 'button', 'select', 'option', 'textarea', 'object'], | ||
248 | element.tagName.toLowerCase()) > -1; | ||
249 | }, | ||
250 | |||
251 | /** @id MochiKit.Selector.Selector.prototype.findElements */ | ||
252 | findElements: function (scope, axis) { | ||
253 | var element; | ||
254 | |||
255 | if (axis == undefined) { | ||
256 | axis = ""; | ||
257 | } | ||
258 | |||
259 | function inScope(element, scope) { | ||
260 | if (axis == "") { | ||
261 | return MochiKit.DOM.isChildNode(element, scope); | ||
262 | } else if (axis == ">") { | ||
263 | return element.parentNode === scope; | ||
264 | } else if (axis == "+") { | ||
265 | return element === nextSiblingElement(scope); | ||
266 | } else if (axis == "~") { | ||
267 | var sibling = scope; | ||
268 | while (sibling = nextSiblingElement(sibling)) { | ||
269 | if (element === sibling) { | ||
270 | return true; | ||
271 | } | ||
272 | } | ||
273 | return false; | ||
274 | } else { | ||
275 | throw "Invalid axis: " + axis; | ||
276 | } | ||
277 | } | ||
278 | |||
279 | if (element = MochiKit.DOM.getElement(this.params.id)) { | ||
280 | if (this.match(element)) { | ||
281 | if (!scope || inScope(element, scope)) { | ||
282 | return [element]; | ||
283 | } | ||
284 | } | ||
285 | } | ||
286 | |||
287 | function nextSiblingElement(node) { | ||
288 | node = node.nextSibling; | ||
289 | while (node && node.nodeType != 1) { | ||
290 | node = node.nextSibling; | ||
291 | } | ||
292 | return node; | ||
293 | } | ||
294 | |||
295 | if (axis == "") { | ||
296 | scope = (scope || MochiKit.DOM.currentDocument()).getElementsByTagName(this.params.tagName || '*'); | ||
297 | } else if (axis == ">") { | ||
298 | if (!scope) { | ||
299 | throw "> combinator not allowed without preceeding expression"; | ||
300 | } | ||
301 | scope = MochiKit.Base.filter(function (node) { | ||
302 | return node.nodeType == 1; | ||
303 | }, scope.childNodes); | ||
304 | } else if (axis == "+") { | ||
305 | if (!scope) { | ||
306 | throw "+ combinator not allowed without preceeding expression"; | ||
307 | } | ||
308 | scope = nextSiblingElement(scope) && [nextSiblingElement(scope)]; | ||
309 | } else if (axis == "~") { | ||
310 | if (!scope) { | ||
311 | throw "~ combinator not allowed without preceeding expression"; | ||
312 | } | ||
313 | var newscope = []; | ||
314 | while (nextSiblingElement(scope)) { | ||
315 | scope = nextSiblingElement(scope); | ||
316 | newscope.push(scope); | ||
317 | } | ||
318 | scope = newscope; | ||
319 | } | ||
320 | |||
321 | if (!scope) { | ||
322 | return []; | ||
323 | } | ||
324 | |||
325 | var results = MochiKit.Base.filter(MochiKit.Base.bind(function (scopeElt) { | ||
326 | return this.match(scopeElt); | ||
327 | }, this), scope); | ||
328 | |||
329 | return results; | ||
330 | }, | ||
331 | |||
332 | /** @id MochiKit.Selector.Selector.prototype.repr */ | ||
333 | repr: function () { | ||
334 | return 'Selector(' + this.expression + ')'; | ||
335 | }, | ||
336 | |||
337 | toString: MochiKit.Base.forwardCall("repr") | ||
338 | }; | ||
339 | |||
340 | MochiKit.Base.update(MochiKit.Selector, { | ||
341 | |||
342 | /** @id MochiKit.Selector.findChildElements */ | ||
343 | findChildElements: function (element, expressions) { | ||
344 | element = MochiKit.DOM.getElement(element); | ||
345 | var uniq = function(arr) { | ||
346 | var res = []; | ||
347 | for (var i = 0; i < arr.length; i++) { | ||
348 | if (MochiKit.Base.findIdentical(res, arr[i]) < 0) { | ||
349 | res.push(arr[i]); | ||
350 | } | ||
351 | } | ||
352 | return res; | ||
353 | }; | ||
354 | return MochiKit.Base.flattenArray(MochiKit.Base.map(function (expression) { | ||
355 | var nextScope = ""; | ||
356 | var reducer = function (results, expr) { | ||
357 | var match = expr.match(/^[>+~]$/); | ||
358 | if (match) { | ||
359 | nextScope = match[0]; | ||
360 | return results; | ||
361 | } else { | ||
362 | var selector = new MochiKit.Selector.Selector(expr); | ||
363 | var elements = MochiKit.Iter.reduce(function (elements, result) { | ||
364 | return MochiKit.Base.extend(elements, selector.findElements(result || element, nextScope)); | ||
365 | }, results, []); | ||
366 | nextScope = ""; | ||
367 | return elements; | ||
368 | } | ||
369 | }; | ||
370 | var exprs = expression.replace(/(^\s+|\s+$)/g, '').split(/\s+/); | ||
371 | return uniq(MochiKit.Iter.reduce(reducer, exprs, [null])); | ||
372 | }, expressions)); | ||
373 | }, | ||
374 | |||
375 | findDocElements: function () { | ||
376 | return MochiKit.Selector.findChildElements(MochiKit.DOM.currentDocument(), arguments); | ||
377 | }, | ||
378 | |||
379 | __new__: function () { | ||
380 | this.$$ = this.findDocElements; | ||
381 | MochiKit.Base.nameFunctions(this); | ||
382 | } | ||
383 | }); | ||
384 | |||
385 | MochiKit.Selector.__new__(); | ||
386 | |||
387 | MochiKit.Base._exportSymbols(this, MochiKit.Selector); | ||