Merge branch 'dd_ordering' into zope-2.13
[Portfolio.git] / skins / photo_lightbox_viewer.js
1 /*
2 * 2008-2014 Benoit Pin - MINES ParisTech
3 * http://plinn.org
4 * Licence Creative Commons http://creativecommons.org/licenses/by-nc/2.0/
5 */
6
7
8 var Lightbox;
9
10 (function(){
11
12 var reSelected = /.*selected.*/;
13
14 Lightbox = function(grid, toolbar, complete, container_type, orderable) {
15 var self = this;
16 this.grid = grid;
17 this._buildSlidesIndex(); // set this.slides and this.lastSlide;
18 this.fetchingDisabled = false;
19 this.complete = complete;
20 this.container_type = container_type;
21 this.toolbar = toolbar;
22 if (toolbar) {
23 this.toolbarFixed = false;
24 addListener(window, 'scroll', function(evt){self.windowScrollToolbarlHandler(evt);});
25 }
26 addListener(window, 'scroll', function(evt){self.windowScrollGridHandler(evt);});
27 registerStartupFunction(function(){ self.windowScrollGridHandler();});
28 this.lastCBChecked = undefined;
29 this.form = undefined;
30 var parent = this.grid.parentNode;
31 while(parent) {
32 parent = parent.parentNode;
33 if (parent.tagName === 'FORM') {
34 this.form = parent;
35 break;
36 }
37 else if (parent.tagName === 'BODY') {
38 break;
39 }
40 }
41 addListener(this.grid, 'click', function(evt){self.mouseClickHandler(evt);});
42 if (this.form) {
43 var fm = this.fm = new FormManager(this.form);
44 addListener(this.form, 'change', function(evt){self.onChangeHandler(evt);});
45 fm.onBeforeSubmit = function(fm_, evt) {return self.onBeforeSubmit(fm_, evt);};
46 fm.onResponseLoad = function(req) {return self.onResponseLoad(req);};
47 }
48
49 // drag and drop
50 this.disableDefaultDragging();
51 this._DDOrderingListeners = {'dragstart' : function(evt){self.onDragStart(evt);},
52 'dragover' : function(evt){self.onDragOver(evt);},
53 'dragend' : function(evt){self.onDragEnd(evt);}
54 };
55 if(orderable) {this.enableDDOrdering();}
56 };
57
58 Lightbox.prototype._buildSlidesIndex = function() {
59 this.slides = [];
60 var node, i;
61 for (i=0 ; i<this.grid.childNodes.length ; i++) {
62 node = this.grid.childNodes[i];
63 if (node.nodeType === 1) { // is element
64 this.slides.push(node);
65 }
66 }
67 this.lastSlide = this.slides[this.slides.length-1];
68 };
69
70 Lightbox.prototype.windowScrollToolbarlHandler = function(evt) {
71 if (this.toolbar.offsetTop < getWindowScrollY() && !this.toolbarFixed) {
72 this.toolbarFixed = true;
73 this.backThreshold = this.toolbar.offsetTop;
74 this.switchToolBarPositioning(true);
75 }
76 else if (this.toolbarFixed && getWindowScrollY() < this.backThreshold) {
77 this.toolbarFixed = false;
78 this.switchToolBarPositioning(false);
79 }
80 };
81
82 Lightbox.prototype.windowScrollGridHandler = function(evt) {
83 if (!this.complete &&
84 !this.fetchingDisabled &&
85 getWindowScrollY() >
86 (this.lastSlide.firstElementChild || this.lastSlide.children[0]).offsetTop
87 - getWindowHeight()) {
88 this.fetchingDisabled = true;
89 this.fetchTail();
90 }
91 };
92
93 Lightbox.prototype.mouseClickHandler = function(evt) {
94 var target = getTargetedObject(evt);
95 if (target.tagName === 'IMG') {
96 var img = target;
97 var link = target.parentNode;
98 var button = link.parentNode;
99 var slide = button.parentNode;
100 var req, url;
101 if (link.tagName === 'A') {
102 switch(link.getAttribute('name')) {
103 case 'add_to_selection':
104 disableDefault(evt);
105 link.blur();
106 req = new XMLHttpRequest();
107 url = link.href;
108 req.open("POST", url, true);
109 req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
110 req.send("ajax=1");
111
112 slide.className = 'selected';
113
114 link.setAttribute('name', 'remove_to_selection');
115 link.href = url.replace(/(.*\/)add_to_selection$/, '$1remove_to_selection');
116 link.title = img.alt = 'Retirer de la sélection';
117 button.className = "button slide-deselect";
118 break;
119
120 case 'remove_to_selection':
121 disableDefault(evt);
122 link.blur();
123 req = new XMLHttpRequest();
124 url = link.href;
125 req.open("POST", url, true);
126 req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
127 req.send("ajax=1");
128 slide.className = null;
129 link.setAttribute('name', 'add_to_selection');
130 link.href = url.replace(/(.*\/)remove_to_selection$/, '$1add_to_selection');
131 link.title = img.alt = 'Ajouter à la sélection';
132 button.className = "button slide-select";
133 break;
134
135 case 'add_to_cart' :
136 disableDefault(evt);
137 slide.widget = new CartWidget(slide, link.href);
138 break;
139
140 case 'hide_for_anonymous':
141 disableDefault(evt);
142 link.blur();
143 req = new XMLHttpRequest();
144 url = link.href;
145 req.open("POST", url, true);
146 req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
147 req.send(null);
148 slide.className = 'hidden-slide';
149 link.setAttribute('name', 'show_for_anonymous');
150 link.href = url.replace(/(.*\/)hideForAnonymous$/, '$1resetHide');
151 link.title = img.alt = 'Montrer au anonymes';
152 button.className = "button slide-show";
153 break;
154
155 case 'show_for_anonymous':
156 disableDefault(evt);
157 link.blur();
158 req = new XMLHttpRequest();
159 url = link.href;
160 req.open("POST", url, true);
161 req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
162 req.send(null);
163 slide.className = null;
164 link.setAttribute('name', 'hide_for_anonymous');
165 link.href = url.replace(/(.*\/)resetHide$/, '$1hideForAnonymous');
166 link.title = img.alt = 'Masquer pour les anonymes';
167 button.className = "button slide-hide";
168 break;
169 }
170 }
171 } else if(target.tagName === 'INPUT' && target.type === 'checkbox') {
172 var cb = target;
173 if (cb.checked) {
174 cb.setAttribute('checked', 'checked');
175 }
176 else {
177 cb.removeAttribute('checked');
178 }
179 this.selectCBRange(evt);
180 }
181 };
182
183 Lightbox.prototype.onChangeHandler = function(evt) {
184 var target = getTargetedObject(evt);
185 if (target.name === 'sort_on') {
186 if (target.value === 'position') {this.enableDDOrdering();}
187 else {this.disableDDOrdering();}
188 this.fm.submitButton = {'name' : 'set_sorting', 'value' : 'ok'};
189 this.fm.submit(evt);
190 }
191 };
192
193 Lightbox.prototype.onBeforeSubmit = function(fm, evt) {
194 switch(fm.submitButton.name) {
195 case 'delete' :
196 this.hideSelection();
197 break;
198 }
199 };
200
201 Lightbox.prototype.onResponseLoad = function(req) {
202 switch(req.responseXML.documentElement.nodeName) {
203 case 'deleted' :
204 this.deleteSelection();
205 break;
206 case 'error' :
207 this.showSelection();
208 break;
209 case 'sorted' :
210 this.fm.submitButton = undefined;
211 this.refreshGrid();
212 break;
213 default :
214 this.fm.loadResponse(req);
215 break;
216 }
217 };
218
219 Lightbox.prototype.switchToolBarPositioning = function(fixed) {
220 var tbs = this.toolbar.style;
221 if (fixed) {
222 this.toolbar.defaultCssText = this.toolbar.style.cssText;
223 tbs.width = String(this.toolbar.offsetWidth) + 'px';
224 tbs.height = String(this.toolbar.offsetHeight) + 'px';
225 tbs.position = 'fixed';
226 tbs.top = '0';
227 this.toolbarPlaceholder = document.createElement('div');
228 var phs = this.toolbarPlaceholder.style;
229 phs.cssText = tbs.cssText;
230 phs.position = 'relative';
231 this.toolbar.parentNode.insertBefore(this.toolbarPlaceholder, this.toolbar);
232 }
233 else {
234 this.toolbarPlaceholder.parentNode.removeChild(this.toolbarPlaceholder);
235 tbs.cssText = this.toolbar.defaultCssText;
236 }
237 };
238
239
240 Lightbox.prototype.hideSelection = function() {
241 var i, e, slide;
242 for (i=0 ; i<this.form.elements.length ; i++) {
243 e = this.form.elements[i];
244 if (e.type === 'checkbox' && e.checked) {
245 slide = e.parentNode.parentNode;
246 slide.classList.add('zero_opacity');
247 }
248 }
249 };
250
251 Lightbox.prototype.showSelection = function() {
252 var i, e, slide;
253 for (i=0 ; i<this.form.elements.length ; i++) {
254 e = this.form.elements[i];
255 if (e.type === 'checkbox' && e.checked) {
256 slide = e.parentNode.parentNode;
257 slide.classList.remove('zero_opacity');
258 }
259 }
260 };
261
262 Lightbox.prototype.deleteSelection = function() {
263 var i, e, slide;
264 for (i=0 ; i<this.form.elements.length ; i++) {
265 e = this.form.elements[i];
266 if (e.type === 'checkbox' && e.checked) {
267 slide = e.parentNode.parentNode;
268 slide.classList.add('zero_width');
269 }
270 }
271 var self = this;
272 // if you change this, delay you should also change this css rule :
273 // .lightbox span { transition: width 1s
274 setTimeout(function(){self._removeSelection();}, 1000);
275 };
276
277 Lightbox.prototype._removeSelection = function() {
278 var i, e;
279 var toRemove = [];
280 for (i=0 ; i<this.form.elements.length ; i++) {
281 e = this.form.elements[i];
282 if (e.type === 'checkbox' && e.checked) {
283 toRemove.push(e.parentNode.parentNode);
284 }
285 }
286 for (i=0 ; i<toRemove.length ; i++) {
287 this.grid.removeChild(toRemove[i]);
288 }
289 this._buildSlidesIndex();
290 this.cbIndex = undefined;
291 this.windowScrollGridHandler();
292 };
293
294 Lightbox.prototype.getCBIndex = function(cb) {
295 if (!this.cbIndex) {
296 // build checkbox index
297 this.cbIndex = [];
298 var i, node, c;
299 for (i=0 ; i<this.slides.length ; i++) {
300 node = this.slides[i];
301 c = node.getElementsByTagName('input')[0];
302 c.index = this.cbIndex.length;
303 this.cbIndex.push(c);
304 }
305 }
306 return cb.index;
307 };
308
309 Lightbox.prototype.selectCBRange = function(evt) {
310 var target = getTargetedObject(evt);
311 evt = getEventObject(evt);
312 var shift = evt.shiftKey;
313 if (shift && this.lastCBChecked) {
314 var from = this.getCBIndex(this.lastCBChecked);
315 var to = this.getCBIndex(target);
316 var start = Math.min(from, to);
317 var stop = Math.max(from, to);
318 var i;
319 for (i=start ; i<stop ; i++ ) {
320 this.cbIndex[i].setAttribute('checked', 'checked');
321 }
322 }
323 else if (target.checked) {
324 this.lastCBChecked = target;
325 }
326 else {
327 this.lastCBChecked = undefined;
328 }
329 };
330
331 Lightbox.prototype.refreshGrid = function() {
332 var req = new XMLHttpRequest();
333 self = this;
334 req.onreadystatechange = function() {
335 switch (req.readyState) {
336 case 1 :
337 showProgressImage();
338 break;
339 case 4 :
340 hideProgressImage();
341 if (req.status === 200) {
342 self._refreshGrid(req);
343 }
344 break;
345 }
346 };
347
348 var url = absolute_url() +
349 '/portfolio_thumbnails_tail?start:int=0&size:int=' +
350 this.slides.length;
351 req.open('GET', url, true);
352 req.send();
353 };
354
355 Lightbox.prototype._refreshGrid = function(req) {
356 var doc = req.responseXML.documentElement;
357 var i, node;
358 var j = 0;
359 for (i=0 ; i<doc.childNodes.length ; i++) {
360 node = doc.childNodes[i];
361 if (node.nodeType === 1) {
362 node = getCopyOfNode(node);
363 this.disableDefaultDragging(node);
364 this.grid.replaceChild(node, this.slides[j]);
365 this.slides[j] = node;
366 j++;
367 }
368 }
369 this.cbIndex = undefined;
370 };
371
372 Lightbox.prototype.fetchTail = function() {
373 var req = new XMLHttpRequest();
374 var self = this;
375 req.onreadystatechange = function() {
376 switch (req.readyState) {
377 case 1 :
378 showProgressImage();
379 break;
380 case 4 :
381 hideProgressImage();
382 if (req.status === 200) {
383 self._appendTail(req);
384 }
385 break;
386 }
387 };
388
389 var url = absolute_url() +
390 '/portfolio_thumbnails_tail?start:int=' +
391 String(this.slides.length) +
392 '&size:int=10' +
393 '&container_type=' +
394 this.container_type;
395 req.open('GET', url, true);
396 req.send();
397 };
398
399 Lightbox.prototype._appendTail = function(req) {
400 var doc = req.responseXML.documentElement;
401 var i, node, c;
402 for (i=0 ; i<doc.childNodes.length ; i++) {
403 node = doc.childNodes[i];
404 if (node.nodeType === 1) {
405 this.lastSlide = this.grid.appendChild(getCopyOfNode(node));
406 this.disableDefaultDragging(this.lastSlide);
407 this.slides.push(this.lastSlide);
408 if (this.cbIndex) {
409 c = this.lastSlide.getElementsByTagName('input')[0];
410 c.index = this.cbIndex.length;
411 this.cbIndex.push(c);
412
413 }
414 }
415 }
416 this.fetchingDisabled = false;
417 if (doc.getAttribute('nomore')) {
418 this.complete = true;
419 }
420 this.windowScrollGridHandler();
421 };
422
423
424 var _outlineSelectedSlide;
425 if (browser.isGecko) {
426 _outlineSelectedSlide = function(slide) {
427 slide.className = 'selected';
428 };
429 }
430 else {
431 _outlineSelectedSlide = function(slide) {
432 if (slide.className &&
433 !reSelected.test(slide.className)) {
434 slide.className = slide.className + ' selected';
435 }
436 };
437 }
438
439 if (browser.isGecko) {
440 Lightbox.prototype.disableDefaultDragging = function(element) {
441 if (!element) {
442 element = this.grid;
443 }
444 var i, j, name, elements;
445 var elementsNames = ['a', 'img'];
446 for (i=0 ; i < elementsNames.length ; i++) {
447 name = elementsNames[i];
448 elements = element.getElementsByTagName(name);
449 for (j=0 ; j < elements.length ; j++) {
450 elements[j].draggable=false;
451 }
452 }
453 };
454 }
455 else {
456 Lightbox.prototype.disableDefaultDragging = function() {};
457 }
458
459 Lightbox.prototype.getSelectedSlides = function() {
460 var i, e, slide;
461 var slides = [];
462 for (i=0 ; i<this.form.elements.length ; i++) {
463 e = this.form.elements[i];
464 if (e.type === 'checkbox' && e.checked) {
465 slide = e.parentNode.parentNode;
466 slides.push(slide);
467 }
468 }
469 return slides;
470 };
471
472
473 Lightbox.prototype.enableDDOrdering = function() {
474 addListener(this.grid, 'dragstart', this._DDOrderingListeners.dragstart);
475 addListener(this.grid, 'dragover', this._DDOrderingListeners.dragover);
476 addListener(this.grid, 'dragend', this._DDOrderingListeners.dragend);
477 };
478
479 Lightbox.prototype.disableDDOrdering = function() {
480 removeListener(this.grid, 'dragstart', this._DDOrderingListeners.dragstart);
481 removeListener(this.grid, 'dragover', this._DDOrderingListeners.dragover);
482 removeListener(this.grid, 'dragend', this._DDOrderingListeners.dragend);
483 };
484
485 Lightbox.prototype.onDragStart = function(evt) {
486 var target = getTargetedObject(evt);
487 this.dragged = target;
488 this.draggedSelection = this.getSelectedSlides();
489 if (this.draggedSelection.indexOf(target) === -1) {
490 this.draggedSelection.push(target);
491 }
492 evt.dataTransfer.setData('text', '');
493 var i, slide;
494 for(i=0 ; i<this.draggedSelection.length ; i++) {
495 slide = this.draggedSelection[i];
496 slide.style.opacity = 0;
497 slide.style.width = 0;
498 }
499 };
500
501 Lightbox.prototype.onDragOver = function(evt) {
502 if (!this.dragged) {
503 return;
504 }
505 var target = getTargetedObject(evt);
506 while(target && target.className !== 'slide') {
507 target = target.parentNode;
508 }
509 if (!target) {return;}
510 target = target.parentNode;
511 if (target !== this.dragged) {
512 target.classList.add('dragover');
513 }
514 if (this.lastDropTarget && this.lastDropTarget !== target) {
515 this.lastDropTarget.classList.remove('dragover');
516 }
517 this.lastDropTarget = target;
518 };
519
520 Lightbox.prototype.onDragEnd = function(evt) {
521 if (this.lastDropTarget) {
522 this.lastDropTarget.classList.remove('dragover');
523 var i, slide;
524 this.pendingMovedSlides = [];
525 for(i=this.draggedSelection.length -1 ; i>=0 ; i--) {
526 slide = this.draggedSelection[i].cloneNode(true);
527 this.pendingMovedSlides.push(slide);
528 this.grid.insertBefore(slide, this.lastDropTarget.nextSibling);
529 slide.style.opacity = 1;
530 slide.style.width = '';
531 }
532 this.moveSelectedPhotos();
533 }
534 // this.draggedSelection = this.lastDropTarget
535 this.dragged = undefined;
536 };
537
538 Lightbox.prototype.moveSelectedPhotos = function() {
539 var req = new XMLHttpRequest();
540 self = this;
541 req.onreadystatechange = function() {
542 switch (req.readyState) {
543 case 1 :
544 showProgressImage();
545 break;
546 case 4 :
547 hideProgressImage();
548 self._moveSelectedPhotos(req);
549 break;
550 }
551 };
552
553 var url = absolute_url() + '/portfolio_move_photos';
554 req.open("POST", url, true);
555 req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
556 var query = 'container_type=' + this.container_type;
557 var i;
558 for (i=0 ; i<this.draggedSelection.length ; i++) {
559 query += '&uids:list=' + this.draggedSelection[i].getAttribute('name');
560 }
561 query += '&afterUid=' + this.lastDropTarget.getAttribute('name');
562 req.send(query);
563 };
564
565 Lightbox.prototype._moveSelectedPhotos = function(req) {
566 var i, slide, cb;
567 if (req.status === 200) {
568 var doc = req.responseXML.documentElement;
569 if (doc.nodeName === 'ok') {
570 for(i=0 ; i<this.draggedSelection.length ; i++) {
571 slide = this.draggedSelection[i];
572 this.grid.removeChild(slide);
573 cb = this.pendingMovedSlides[i].getElementsByTagName('input')[0];
574 cb.checked = false;
575 cb.removeAttribute('checked');
576 }
577 this.pendingMovedSlides = undefined;
578 this.cbIndex = undefined;
579 return;
580 }
581 }
582
583 for(i=0 ; i<this.pendingMovedSlides.length ; i++) {
584 slide = this.pendingMovedSlides[i];
585 this.grid.removeChild(slide);
586 }
587
588 for(i=0 ; i<this.draggedSelection.length ; i++) {
589 slide = this.draggedSelection[i];
590 slide.style.opacity = 1;
591 slide.style.width = '';
592 }
593 };
594
595 }());