bb27a67b9c354541393d7443bb6434dfa568403d
[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) {
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 // addListener(window, 'load', function(evt){ self.windowScrollGridHandler();});
28 registerStartupFunction(function(){ self.windowScrollGridHandler();});
29 this.lastCBChecked = undefined;
30 this.form = undefined;
31 var parent = this.grid.parentNode;
32 while(parent) {
33 parent = parent.parentNode;
34 if (parent.tagName === 'FORM') {
35 this.form = parent;
36 break;
37 }
38 else if (parent.tagName === 'BODY') {
39 break;
40 }
41 }
42 addListener(this.grid, 'click', function(evt){self.mouseClickHandler(evt);});
43 if (this.form) {
44 var fm = this.fm = new FormManager(this.form);
45 addListener(this.form, 'change', function(evt){self.onChangeHandler(evt);});
46 fm.onBeforeSubmit = function(fm_, evt) {return self.onBeforeSubmit(fm_, evt);};
47 fm.onResponseLoad = function(req) {return self.onResponseLoad(req);};
48 }
49 };
50
51 Lightbox.prototype._buildSlidesIndex = function() {
52 this.slides = [];
53 var node, i;
54 for (i=0 ; i<this.grid.childNodes.length ; i++) {
55 node = this.grid.childNodes[i];
56 if (node.nodeType === 1) { // is element
57 this.slides.push(node);
58 }
59 }
60 this.lastSlide = this.slides[this.slides.length-1];
61 };
62
63 Lightbox.prototype.windowScrollToolbarlHandler = function(evt) {
64 if (this.toolbar.offsetTop < getWindowScrollY() && !this.toolbarFixed) {
65 this.toolbarFixed = true;
66 this.backThreshold = this.toolbar.offsetTop;
67 this.switchToolBarPositioning(true);
68 }
69 else if (this.toolbarFixed && getWindowScrollY() < this.backThreshold) {
70 this.toolbarFixed = false;
71 this.switchToolBarPositioning(false);
72 }
73 };
74 Lightbox.prototype.windowScrollGridHandler = function(evt) {
75 if (!this.complete &&
76 !this.fetchingDisabled &&
77 getWindowScrollY() >
78 (this.lastSlide.firstElementChild || this.lastSlide.children[0]).offsetTop
79 - getWindowHeight()) {
80 this.fetchingDisabled = true;
81 this.fetchTail();
82 }
83 };
84
85 Lightbox.prototype.mouseClickHandler = function(evt) {
86 var target = getTargetedObject(evt);
87 if (target.tagName === 'IMG') {
88 var img = target;
89 var link = target.parentNode;
90 var button = link.parentNode;
91 var slide = button.parentNode;
92 var req, url;
93 if (link.tagName === 'A') {
94 switch(link.getAttribute('name')) {
95 case 'add_to_selection':
96 disableDefault(evt);
97 link.blur();
98 req = new XMLHttpRequest();
99 url = link.href;
100 req.open("POST", url, true);
101 req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
102 req.send("ajax=1");
103
104 slide.className = 'selected';
105
106 link.setAttribute('name', 'remove_to_selection');
107 link.href = url.replace(/(.*\/)add_to_selection$/, '$1remove_to_selection');
108 link.title = img.alt = 'Retirer de la sélection';
109 button.className = "button slide-deselect";
110 break;
111
112 case 'remove_to_selection':
113 disableDefault(evt);
114 link.blur();
115 req = new XMLHttpRequest();
116 url = link.href;
117 req.open("POST", url, true);
118 req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
119 req.send("ajax=1");
120 slide.className = null;
121 link.setAttribute('name', 'add_to_selection');
122 link.href = url.replace(/(.*\/)remove_to_selection$/, '$1add_to_selection');
123 link.title = img.alt = 'Ajouter à la sélection';
124 button.className = "button slide-select";
125 break;
126
127 case 'add_to_cart' :
128 disableDefault(evt);
129 slide.widget = new CartWidget(slide, link.href);
130 break;
131
132 case 'hide_for_anonymous':
133 disableDefault(evt);
134 link.blur();
135 req = new XMLHttpRequest();
136 url = link.href;
137 req.open("POST", url, true);
138 req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
139 req.send(null);
140 slide.className = 'hidden-slide';
141 link.setAttribute('name', 'show_for_anonymous');
142 link.href = url.replace(/(.*\/)hideForAnonymous$/, '$1resetHide');
143 link.title = img.alt = 'Montrer au anonymes';
144 button.className = "button slide-show";
145 break;
146
147 case 'show_for_anonymous':
148 disableDefault(evt);
149 link.blur();
150 req = new XMLHttpRequest();
151 url = link.href;
152 req.open("POST", url, true);
153 req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
154 req.send(null);
155 slide.className = null;
156 link.setAttribute('name', 'hide_for_anonymous');
157 link.href = url.replace(/(.*\/)resetHide$/, '$1hideForAnonymous');
158 link.title = img.alt = 'Masquer pour les anonymes';
159 button.className = "button slide-hide";
160 break;
161 }
162 }
163 } else if(target.tagName === 'INPUT' && target.type === 'checkbox') {
164 var cb = target;
165 if (cb.checked) {
166 cb.setAttribute('checked', 'checked');
167 }
168 else {
169 cb.removeAttribute('checked');
170 }
171 this.selectCBRange(evt);
172 }
173 };
174
175 Lightbox.prototype.onChangeHandler = function(evt) {
176 var target = getTargetedObject(evt);
177 if (target.name === 'sort_on') {
178 this.fm.submitButton = {'name' : 'set_sorting', 'value' : 'ok'};
179 this.fm.submit(evt);
180 }
181 };
182
183 Lightbox.prototype.onBeforeSubmit = function(fm, evt) {
184 switch(fm.submitButton.name) {
185 case 'delete' :
186 this.hideSelection();
187 break;
188 }
189 };
190
191 Lightbox.prototype.onResponseLoad = function(req) {
192 switch(req.responseXML.documentElement.nodeName) {
193 case 'deleted' :
194 this.deleteSelection();
195 break;
196 case 'error' :
197 this.showSelection();
198 break;
199 case 'sorted' :
200 this.fm.submitButton = undefined;
201 this.refreshGrid();
202 break;
203 default :
204 this.fm.loadResponse(req);
205 break;
206 }
207 };
208
209 Lightbox.prototype.switchToolBarPositioning = function(fixed) {
210 var tbs = this.toolbar.style;
211 if (fixed) {
212 this.toolbar.defaultCssText = this.toolbar.style.cssText;
213 tbs.width = String(this.toolbar.offsetWidth) + 'px';
214 tbs.height = String(this.toolbar.offsetHeight) + 'px';
215 tbs.position = 'fixed';
216 tbs.top = '0';
217 this.toolbarPlaceholder = document.createElement('div');
218 var phs = this.toolbarPlaceholder.style;
219 phs.cssText = tbs.cssText;
220 phs.position = 'relative';
221 this.toolbar.parentNode.insertBefore(this.toolbarPlaceholder, this.toolbar);
222 }
223 else {
224 this.toolbarPlaceholder.parentNode.removeChild(this.toolbarPlaceholder);
225 tbs.cssText = this.toolbar.defaultCssText;
226 }
227 };
228
229
230 Lightbox.prototype.hideSelection = function() {
231 var i, e, slide;
232 for (i=0 ; i<this.form.elements.length ; i++) {
233 e = this.form.elements[i];
234 if (e.type === 'checkbox' && e.checked) {
235 slide = e.parentNode.parentNode;
236 slide.classList.add('zero_opacity');
237 }
238 }
239 };
240
241 Lightbox.prototype.showSelection = function() {
242 var i, e, slide;
243 for (i=0 ; i<this.form.elements.length ; i++) {
244 e = this.form.elements[i];
245 if (e.type === 'checkbox' && e.checked) {
246 slide = e.parentNode.parentNode;
247 slide.classList.remove('zero_opacity');
248 }
249 }
250 };
251
252 Lightbox.prototype.deleteSelection = function() {
253 var i, e, slide;
254 for (i=0 ; i<this.form.elements.length ; i++) {
255 e = this.form.elements[i];
256 if (e.type === 'checkbox' && e.checked) {
257 slide = e.parentNode.parentNode;
258 slide.classList.add('zero_width');
259 }
260 }
261 var self = this;
262 // if you change this, delay you should also change this css rule :
263 // .lightbox span { transition: width 1s
264 setTimeout(function(){self._removeSelection();}, 1000);
265 };
266
267 Lightbox.prototype._removeSelection = function() {
268 var i, e;
269 var toRemove = [];
270 for (i=0 ; i<this.form.elements.length ; i++) {
271 e = this.form.elements[i];
272 if (e.type === 'checkbox' && e.checked) {
273 toRemove.push(e.parentNode.parentNode);
274 }
275 }
276 for (i=0 ; i<toRemove.length ; i++) {
277 this.grid.removeChild(toRemove[i]);
278 }
279 this._buildSlidesIndex();
280 this.cbIndex = undefined;
281 this.windowScrollGridHandler();
282 };
283
284 Lightbox.prototype.getCBIndex = function(cb) {
285 if (!this.cbIndex) {
286 // build checkbox index
287 this.cbIndex = [];
288 var i, node, c;
289 for (i=0 ; i<this.slides.length ; i++) {
290 node = this.slides[i];
291 c = node.getElementsByTagName('input')[0];
292 c.index = this.cbIndex.length;
293 this.cbIndex.push(c);
294 }
295 }
296 return cb.index;
297 };
298
299 Lightbox.prototype.selectCBRange = function(evt) {
300 var target = getTargetedObject(evt);
301 evt = getEventObject(evt);
302 var shift = evt.shiftKey;
303 if (shift && this.lastCBChecked) {
304 var from = this.getCBIndex(this.lastCBChecked);
305 var to = this.getCBIndex(target);
306 var start = Math.min(from, to);
307 var stop = Math.max(from, to);
308 var i;
309 for (i=start ; i<stop ; i++ ) {
310 this.cbIndex[i].setAttribute('checked', 'checked');
311 }
312 }
313 else if (target.checked) {
314 this.lastCBChecked = target;
315 }
316 else {
317 this.lastCBChecked = undefined;
318 }
319 };
320
321 Lightbox.prototype.refreshGrid = function() {
322 var req = new XMLHttpRequest();
323 self = this;
324 req.onreadystatechange = function() {
325 switch (req.readyState) {
326 case 1 :
327 showProgressImage();
328 break;
329 case 4 :
330 hideProgressImage();
331 if (req.status === 200) {
332 self._refreshGrid(req);
333 }
334 break;
335 }
336 };
337
338 var url = absolute_url() +
339 '/portfolio_thumbnails_tail?start:int=0&size:int=' +
340 this.slides.length;
341 req.open('GET', url, true);
342 req.send();
343 };
344
345 Lightbox.prototype._refreshGrid = function(req) {
346 var doc = req.responseXML.documentElement;
347 var i, node;
348 var j = 0;
349 for (i=0 ; i<doc.childNodes.length ; i++) {
350 node = doc.childNodes[i];
351 if (node.nodeType === 1) {
352 node = getCopyOfNode(node);
353 this.grid.replaceChild(node, this.slides[j]);
354 this.slides[j] = node;
355 j++;
356 }
357 }
358 this.cbIndex = undefined;
359 };
360
361 Lightbox.prototype.fetchTail = function() {
362 var req = new XMLHttpRequest();
363 var self = this;
364 req.onreadystatechange = function() {
365 switch (req.readyState) {
366 case 1 :
367 showProgressImage();
368 break;
369 case 4 :
370 hideProgressImage();
371 if (req.status === 200) {
372 self._appendTail(req);
373 }
374 break;
375 }
376 };
377
378 var url = absolute_url() +
379 '/portfolio_thumbnails_tail?start:int=' +
380 String(this.slides.length) +
381 '&size:int=10' +
382 '&container_type=' +
383 this.container_type;
384 req.open('GET', url, true);
385 req.send();
386 };
387
388 Lightbox.prototype._appendTail = function(req) {
389 var doc = req.responseXML.documentElement;
390 var i, node, c;
391 for (i=0 ; i<doc.childNodes.length ; i++) {
392 node = doc.childNodes[i];
393 if (node.nodeType === 1) {
394 this.lastSlide = this.grid.appendChild(getCopyOfNode(node));
395 this.slides.push(this.lastSlide);
396 if (this.cbIndex) {
397 c = this.lastSlide.getElementsByTagName('input')[0];
398 c.index = this.cbIndex.length;
399 this.cbIndex.push(c);
400
401 }
402 }
403 }
404 this.fetchingDisabled = false;
405 if (doc.getAttribute('nomore')) {
406 this.complete = true;
407 }
408 this.windowScrollGridHandler();
409 };
410
411
412 var _outlineSelectedSlide;
413 if (browser.isGecko) {
414 _outlineSelectedSlide = function(slide) {
415 slide.className = 'selected';
416 };
417 }
418 else {
419 _outlineSelectedSlide = function(slide) {
420 if (slide.className &&
421 !reSelected.test(slide.className)) {
422 slide.className = slide.className + ' selected';
423 }
424 };
425 }
426
427 }());