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1 | // Miscellaneous core Javascript functions for Moodle |
2 | |
b48fd7b5 |
3 | function popupchecker(msg) { |
4 | var testwindow = window.open('itestwin.html', '', 'width=1,height=1,left=0,top=0,scrollbars=no'); |
5 | if (testwindow == null) |
6 | {alert(msg);} |
7 | else { |
8 | testwindow.close(); |
9 | } |
10 | } |
11 | |
d2ce367f |
12 | /* |
63d28811 |
13 | function popUpProperties(inobj) { |
d2ce367f |
14 | /// Legacy function |
15 | var op = window.open(); |
63d28811 |
16 | op.document.open('text/plain'); |
17 | for (objprop in inobj) { |
18 | op.document.write(objprop + ' => ' + inobj[objprop] + '\n'); |
19 | } |
20 | op.document.close(); |
21 | } |
22 | |
23 | function fillmessagebox(text) { |
d2ce367f |
24 | /// Legacy function |
63d28811 |
25 | document.form.message.value = text; |
26 | } |
27 | |
28 | function copyrichtext(textname) { |
29 | /// Legacy stub for old editor - to be removed soon |
30 | return true; |
31 | } |
d2ce367f |
32 | */ |
63d28811 |
33 | |
34 | function checkall() { |
d2ce367f |
35 | var el = document.getElementsByTagName('input'); |
36 | for(var i=0; i<el.length; i++) { |
37 | if(el[i].type == 'checkbox') { |
38 | el[i].checked = true; |
39 | } |
40 | } |
63d28811 |
41 | } |
42 | |
03f9425f |
43 | function checknone() { |
d2ce367f |
44 | var el = document.getElementsByTagName('input'); |
45 | for(var i=0; i<el.length; i++) { |
46 | if(el[i].type == 'checkbox') { |
47 | el[i].checked = false; |
48 | } |
49 | } |
03f9425f |
50 | } |
51 | |
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52 | function lockoptions(formid, master, subitems) { |
027d0485 |
53 | // Subitems is an array of names of sub items. |
54 | // Optionally, each item in subitems may have a |
63d28811 |
55 | // companion hidden item in the form with the |
027d0485 |
56 | // same name but prefixed by "h". |
d2ce367f |
57 | var form = document.forms[formid]; |
58 | |
59 | if (eval("form."+master+".checked")) { |
63d28811 |
60 | for (i=0; i<subitems.length; i++) { |
61 | unlockoption(form, subitems[i]); |
62 | } |
63 | } else { |
64 | for (i=0; i<subitems.length; i++) { |
65 | lockoption(form, subitems[i]); |
66 | } |
67 | } |
68 | return(true); |
69 | } |
70 | |
f07b9627 |
71 | function lockoption(form,item) { |
d2ce367f |
72 | eval("form."+item+".disabled=true");/* IE thing */ |
73 | if(form.elements['h'+item]) { |
74 | eval("form.h"+item+".value=1"); |
f07b9627 |
75 | } |
76 | } |
77 | |
78 | function unlockoption(form,item) { |
d2ce367f |
79 | eval("form."+item+".disabled=false");/* IE thing */ |
80 | if(form.elements['h'+item]) { |
81 | eval("form.h"+item+".value=0"); |
f07b9627 |
82 | } |
83 | } |
dd07bbac |
84 | |
85 | |
50ef8eb9 |
86 | function lockoptionsall(formid) { |
dd07bbac |
87 | var form = document.forms[formid]; |
88 | var dependons = eval(formid+'items'); |
632b88d5 |
89 | var tolock = Array(); |
dd07bbac |
90 | for (var dependon in dependons) { |
91 | var master = form[dependon]; |
92 | for (var condition in dependons[dependon]) { |
93 | for (var value in dependons[dependon][condition]) { |
94 | var lock; |
95 | switch (condition) { |
96 | case 'notchecked': |
97 | lock = !master.checked; break; |
98 | case 'checked': |
99 | lock = master.checked; break; |
100 | case 'noitemselected': |
101 | lock = master.selectedIndex==-1; break; |
102 | case 'eq': |
103 | lock = master.value==value; break; |
104 | default: |
105 | lock = master.value!=value; break; |
106 | } |
107 | for (var ei in dependons[dependon][condition][value]) { |
632b88d5 |
108 | var eltolock = dependons[dependon][condition][value][ei]; |
109 | if (tolock[eltolock] != null){ |
110 | tolock[eltolock] = |
111 | lock || tolock[eltolock]; |
112 | } else { |
113 | tolock[eltolock] = lock; |
114 | } |
dd07bbac |
115 | } |
116 | } |
50ef8eb9 |
117 | } |
dd07bbac |
118 | } |
632b88d5 |
119 | for (var el in tolock){ |
120 | var formelement = form[el]; |
121 | formelement.disabled = tolock[el]; |
122 | } |
dd07bbac |
123 | return true; |
50ef8eb9 |
124 | } |
125 | |
d01a38cb |
126 | function lockoptionsallsetup(formid) { |
dd07bbac |
127 | var form = document.forms[formid]; |
128 | var dependons = eval(formid+'items'); |
129 | for (var dependon in dependons) { |
130 | var master = form[dependon]; |
131 | master.onclick = function() {return lockoptionsall(this.form.getAttribute('id'));}; |
132 | master.onblur = function() {return lockoptionsall(this.form.getAttribute('id'));}; |
133 | master.onchange = function() {return lockoptionsall(this.form.getAttribute('id'));}; |
134 | } |
135 | for (var i = 0; i < form.elements.length; i++){ |
136 | var formelement = form.elements[i]; |
137 | if (formelement.type=='reset') { |
138 | formelement.onclick = function() {this.form.reset();return lockoptionsall(this.form.getAttribute('id'));}; |
139 | formelement.onblur = function() {this.form.reset();return lockoptionsall(this.form.getAttribute('id'));}; |
140 | formelement.onchange = function() {this.form.reset();return lockoptionsall(this.form.getAttribute('id'));}; |
141 | } |
142 | } |
143 | return lockoptionsall(formid); |
d01a38cb |
144 | } |
50ef8eb9 |
145 | |
7678e65c |
146 | |
147 | function submitFormById(id) { |
148 | var theform = document.getElementById(id); |
149 | if(!theform) { |
150 | return false; |
151 | } |
bb006c95 |
152 | if(theform.tagName.toLowerCase() != 'form') { |
7678e65c |
153 | return false; |
154 | } |
155 | if(!theform.onsubmit || theform.onsubmit()) { |
156 | return theform.submit(); |
157 | } |
158 | } |
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159 | |
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160 | function select_all_in(elTagName, elClass, elId) { |
d2ce367f |
161 | var inputs = document.getElementsByTagName('input'); |
8ceb09e0 |
162 | inputs = filterByParent(inputs, function(el) {return findParentNode(el, elTagName, elClass, elId);}); |
363cb62c |
163 | for(var i = 0; i < inputs.length; ++i) { |
bee40515 |
164 | if(inputs[i].type == 'checkbox' || inputs[i].type == 'radio') { |
363cb62c |
165 | inputs[i].checked = 'checked'; |
166 | } |
167 | } |
168 | } |
169 | |
8ceb09e0 |
170 | function deselect_all_in(elTagName, elClass, elId) { |
363cb62c |
171 | var inputs = document.getElementsByTagName('INPUT'); |
8ceb09e0 |
172 | inputs = filterByParent(inputs, function(el) {return findParentNode(el, elTagName, elClass, elId);}); |
363cb62c |
173 | for(var i = 0; i < inputs.length; ++i) { |
bee40515 |
174 | if(inputs[i].type == 'checkbox' || inputs[i].type == 'radio') { |
363cb62c |
175 | inputs[i].checked = ''; |
176 | } |
177 | } |
178 | } |
179 | |
180 | function confirm_if(expr, message) { |
181 | if(!expr) { |
182 | return true; |
183 | } |
184 | return confirm(message); |
185 | } |
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186 | |
187 | |
188 | /* |
189 | findParentNode (start, elementName, elementClass, elementID) |
50ef8eb9 |
190 | |
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191 | Travels up the DOM hierarchy to find a parent element with the |
192 | specified tag name, class, and id. All conditions must be met, |
193 | but any can be ommitted. Returns the BODY element if no match |
194 | found. |
195 | */ |
196 | function findParentNode(el, elName, elClass, elId) { |
ef4d42fd |
197 | while(el.nodeName.toUpperCase() != 'BODY') { |
47aa42e2 |
198 | if( |
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199 | (!elName || el.nodeName.toUpperCase() == elName) && |
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200 | (!elClass || el.className.indexOf(elClass) != -1) && |
201 | (!elId || el.id == elId)) |
202 | { |
203 | break; |
204 | } |
205 | el = el.parentNode; |
206 | } |
207 | return el; |
208 | } |
19194f82 |
209 | /* |
210 | findChildNode (start, elementName, elementClass, elementID) |
211 | |
212 | Travels down the DOM hierarchy to find all child elements with the |
213 | specified tag name, class, and id. All conditions must be met, |
214 | but any can be ommitted. |
a23f0aaf |
215 | Doesn't examine children of matches. |
19194f82 |
216 | */ |
217 | function findChildNodes(start, tagName, elementClass, elementID, elementName) { |
218 | var children = new Array(); |
83c9a8a2 |
219 | for (var i = 0; i < start.childNodes.length; i++) { |
a23f0aaf |
220 | var classfound = false; |
83c9a8a2 |
221 | var child = start.childNodes[i]; |
a23f0aaf |
222 | if((child.nodeType == 1) &&//element node type |
223 | (elementClass && (typeof(child.className)=='string'))){ |
224 | var childClasses = child.className.split(/\s+/); |
225 | for (var childClassIndex in childClasses){ |
226 | if (childClasses[childClassIndex]==elementClass){ |
227 | classfound = true; |
228 | break; |
229 | } |
230 | } |
231 | } |
f07b9627 |
232 | if(child.nodeType == 1) { //element node type |
233 | if ( (!tagName || child.nodeName == tagName) && |
234 | (!elementClass || classfound)&& |
235 | (!elementID || child.id == elementID) && |
236 | (!elementName || child.name == elementName)) |
237 | { |
238 | children = children.concat(child); |
239 | } else { |
240 | children = children.concat(findChildNodes(child, tagName, elementClass, elementID, elementName)); |
241 | } |
19194f82 |
242 | } |
19194f82 |
243 | } |
244 | return children; |
245 | } |
246 | /* |
247 | elementSetHide (elements, hide) |
248 | |
249 | Adds or removes the "hide" class for the specified elements depending on boolean hide. |
250 | */ |
251 | function elementShowAdvanced(elements, show) { |
252 | for (var elementIndex in elements){ |
253 | element = elements[elementIndex]; |
254 | element.className = element.className.replace(new RegExp(' ?hide'), '') |
255 | if(!show) { |
256 | element.className += ' hide'; |
257 | } |
258 | } |
259 | } |
260 | |
261 | function showAdvancedOnClick(button, hidetext, showtext){ |
262 | var toSet=findChildNodes(button.form, null, 'advanced'); |
263 | var buttontext = ''; |
74d15d35 |
264 | if (button.form.elements['mform_showadvanced_last'].value == '0' || button.form.elements['mform_showadvanced_last'].value == '' ) { |
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265 | elementShowAdvanced(toSet, true); |
266 | buttontext = hidetext; |
267 | button.form.elements['mform_showadvanced_last'].value = '1'; |
268 | } else { |
269 | elementShowAdvanced(toSet, false); |
270 | buttontext = showtext; |
271 | button.form.elements['mform_showadvanced_last'].value = '0'; |
272 | } |
273 | var formelements = button.form.elements; |
274 | for (var i in formelements){ |
9bf930bd |
275 | if (formelements[i] && formelements[i].name && (formelements[i].name=='mform_showadvanced')){ |
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276 | formelements[i].value = buttontext; |
277 | } |
278 | } |
279 | //never submit the form if js is enabled. |
280 | return false; |
281 | } |
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282 | |
283 | /* |
284 | elementToggleHide (element, elementFinder) |
285 | |
286 | If elementFinder is not provided, toggles the "hidden" class for the specified element. |
287 | If elementFinder is provided, then the "hidden" class will be toggled for the object |
288 | returned by the function call elementFinder(element). |
289 | |
290 | If persistent == true, also sets a cookie for this. |
291 | */ |
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292 | function elementToggleHide(el, persistent, elementFinder) { |
47aa42e2 |
293 | if(!elementFinder) { |
294 | var obj = el; |
295 | } |
296 | else { |
297 | var obj = elementFinder(el); |
298 | } |
299 | if(obj.className.indexOf('hidden') == -1) { |
300 | obj.className += ' hidden'; |
19194f82 |
301 | var shown = 0; |
47aa42e2 |
302 | } |
303 | else { |
19194f82 |
304 | obj.className = obj.className.replace(new RegExp(' ?hidden'), '') |
305 | var shown = 1; |
47aa42e2 |
306 | } |
19194f82 |
307 | |
47aa42e2 |
308 | if(persistent == true) { |
309 | new cookie('hide:' + obj.id, 1, (shown ? -1 : 356), '/').set(); |
310 | } |
311 | } |
312 | |
313 | |
314 | function elementCookieHide(id) { |
315 | var obj = document.getElementById(id); |
316 | var cook = new cookie('hide:' + id).read(); |
317 | if(cook != null) { |
318 | elementToggleHide(obj, false); |
319 | } |
320 | } |
321 | |
322 | function filterByParent(elCollection, parentFinder) { |
323 | var filteredCollection = []; |
324 | for(var i = 0; i < elCollection.length; ++i) { |
325 | var findParent = parentFinder(elCollection[i]); |
326 | if(findParent.nodeName != 'BODY') { |
327 | filteredCollection.push(elCollection[i]); |
328 | } |
329 | } |
330 | return filteredCollection; |
331 | } |
332 | |
7979105c |
333 | /* |
334 | All this is here just so that IE gets to handle oversized blocks |
335 | in a visually pleasing manner. It does a browser detect. So sue me. |
336 | */ |
337 | |
338 | function fix_column_widths() { |
339 | var agt = navigator.userAgent.toLowerCase(); |
340 | if ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1)) { |
341 | fix_column_width('left-column'); |
342 | fix_column_width('right-column'); |
343 | } |
344 | } |
345 | |
346 | function fix_column_width(colName) { |
347 | if(column = document.getElementById(colName)) { |
348 | if(!column.offsetWidth) { |
349 | setTimeout("fix_column_width('" + colName + "')", 20); |
350 | return; |
351 | } |
352 | |
353 | var width = 0; |
354 | var nodes = column.childNodes; |
355 | |
356 | for(i = 0; i < nodes.length; ++i) { |
357 | if(nodes[i].className.indexOf("sideblock") != -1 ) { |
358 | if(width < nodes[i].offsetWidth) { |
359 | width = nodes[i].offsetWidth; |
360 | } |
361 | } |
362 | } |
363 | |
364 | for(i = 0; i < nodes.length; ++i) { |
365 | if(nodes[i].className.indexOf("sideblock") != -1 ) { |
366 | nodes[i].style.width = width + 'px'; |
367 | } |
368 | } |
369 | } |
370 | } |
d13c5938 |
371 | |
372 | |
373 | /* |
374 | Insert myValue at current cursor position |
375 | */ |
376 | function insertAtCursor(myField, myValue) { |
377 | // IE support |
378 | if (document.selection) { |
379 | myField.focus(); |
380 | sel = document.selection.createRange(); |
381 | sel.text = myValue; |
382 | } |
383 | // Mozilla/Netscape support |
384 | else if (myField.selectionStart || myField.selectionStart == '0') { |
385 | var startPos = myField.selectionStart; |
386 | var endPos = myField.selectionEnd; |
387 | myField.value = myField.value.substring(0, startPos) |
388 | + myValue + myField.value.substring(endPos, myField.value.length); |
389 | } else { |
390 | myField.value += myValue; |
391 | } |
392 | } |