X-Git-Url: https://scm.cri.mines-paristech.fr/git/Portfolio.git/blobdiff_plain/6e817759eb01c8419a8aaf4194afd73bcc60bc93..2da869b2b46179d64c05eaac4081226fdbbbc9ff:/skins/photo_lightbox_viewer.js

diff --git a/skins/photo_lightbox_viewer.js b/skins/photo_lightbox_viewer.js
index 354a334..ba3ecf1 100644
--- a/skins/photo_lightbox_viewer.js
+++ b/skins/photo_lightbox_viewer.js
@@ -11,14 +11,20 @@ var Lightbox;
 
 var reSelected = /.*selected.*/;
 
-Lightbox = function(grid, toolbar) {
+Lightbox = function(grid, toolbar, complete, container_type, orderable) {
 	var self = this;
 	this.grid = grid;
+	this._buildSlidesIndex(); // set this.slides and this.lastSlide;
+	this.fetchingDisabled = false;
+	this.complete = complete;
+	this.container_type = container_type;
 	this.toolbar = toolbar;
 	if (toolbar) {
 		this.toolbarFixed = false;
-		addListener(window, 'scroll', function(evt){self.windowScrollHandler(evt);});
+		addListener(window, 'scroll', function(evt){self.windowScrollToolbarlHandler(evt);});
 	}
+	addListener(window, 'scroll', function(evt){self.windowScrollGridHandler(evt);});
+	registerStartupFunction(function(){ self.windowScrollGridHandler();});
 	this.lastCBChecked = undefined;
 	this.form = undefined;
 	var parent = this.grid.parentNode;
@@ -35,29 +41,60 @@ Lightbox = function(grid, toolbar) {
 	addListener(this.grid, 'click', function(evt){self.mouseClickHandler(evt);});
 	if (this.form) {
 		var fm = this.fm = new FormManager(this.form);
-        addListener(this.form, 'change', function(evt){self.onChangeHandler(evt);});
+		addListener(this.form, 'change', function(evt){self.onChangeHandler(evt);});
 		fm.onBeforeSubmit = function(fm_, evt) {return self.onBeforeSubmit(fm_, evt);};
 		fm.onResponseLoad = function(req) {return self.onResponseLoad(req);};
 	}
+
+	// drag and drop
+	this.disableDefaultDragging();
+	this._DDOrderingListeners = {'dragstart' : function(evt){self.onDragStart(evt);},
+								 'dragover' : function(evt){self.onDragOver(evt);},
+								 'dragend' : function(evt){self.onDragEnd(evt);}
+								 };
+	if(orderable) {this.enableDDOrdering();}
+};
+
+Lightbox.prototype._buildSlidesIndex = function() {
+	this.slides = [];
+	var node, i;
+	for (i=0 ; i<this.grid.childNodes.length ; i++) {
+		node = this.grid.childNodes[i];
+		if (node.nodeType === 1) { // is element
+			this.slides.push(node);
+		}
+	}
+	this.lastSlide = this.slides[this.slides.length-1];
 };
 
-Lightbox.prototype.windowScrollHandler = function(evt) {
-	if (this.toolbar.offsetTop < window.scrollY && !this.toolbarFixed) {
+Lightbox.prototype.windowScrollToolbarlHandler = function(evt) {
+	if (this.toolbar.offsetTop < getWindowScrollY() && !this.toolbarFixed) {
 		this.toolbarFixed = true;
 		this.backThreshold = this.toolbar.offsetTop;
 		this.switchToolBarPositioning(true);
 	}
-	else if (this.toolbarFixed && window.scrollY < this.backThreshold) {
+	else if (this.toolbarFixed && getWindowScrollY() < this.backThreshold) {
 		this.toolbarFixed = false;
 		this.switchToolBarPositioning(false);
 	}
 };
 
+Lightbox.prototype.windowScrollGridHandler = function(evt) {
+	if (!this.complete &&
+		!this.fetchingDisabled &&
+		getWindowScrollY() >
+			(this.lastSlide.firstElementChild || this.lastSlide.children[0]).offsetTop
+			 - getWindowHeight()) {
+		this.fetchingDisabled = true;
+		this.fetchTail();
+	}
+};
+
 Lightbox.prototype.mouseClickHandler = function(evt) {
 	var target = getTargetedObject(evt);
 	if (target.tagName === 'IMG') {
 		var img = target;
-		var link =  target.parentNode;
+		var link =	target.parentNode;
 		var button =  link.parentNode;
 		var slide = button.parentNode;
 		var req, url;
@@ -144,11 +181,13 @@ Lightbox.prototype.mouseClickHandler = function(evt) {
 };
 
 Lightbox.prototype.onChangeHandler = function(evt) {
-    var target = getTargetedObject(evt);
-    if (target.name === 'sort_on') {
-        this.fm.submitButton = {'name' : 'set_sorting', 'value' : 'ok'};
-        this.fm.submit(evt);
-    }
+	var target = getTargetedObject(evt);
+	if (target.name === 'sort_on') {
+		if (target.value === 'position') {this.enableDDOrdering();}
+		else {this.disableDDOrdering();}
+		this.fm.submitButton = {'name' : 'set_sorting', 'value' : 'ok'};
+		this.fm.submit(evt);
+	}
 };
 
 Lightbox.prototype.onBeforeSubmit = function(fm, evt) {
@@ -167,8 +206,13 @@ Lightbox.prototype.onResponseLoad = function(req) {
 		case 'error' :
 			this.showSelection();
 			break;
-        case 'sorted' :
-            this.fm.submitButton = undefined;
+		case 'sorted' :
+			this.fm.submitButton = undefined;
+			this.refreshGrid();
+			break;
+		default :
+			this.fm.loadResponse(req);
+			break;
 	}
 };
 
@@ -231,7 +275,7 @@ Lightbox.prototype.deleteSelection = function() {
 };
 
 Lightbox.prototype._removeSelection = function() {
-	var i, e, slide;
+	var i, e;
 	var toRemove = [];
 	for (i=0 ; i<this.form.elements.length ; i++) {
 		e = this.form.elements[i];
@@ -240,10 +284,11 @@ Lightbox.prototype._removeSelection = function() {
 		}
 	}
 	for (i=0 ; i<toRemove.length ; i++) {
-		slide = toRemove[i];
-		slide.parentNode.removeChild(slide);
+		this.grid.removeChild(toRemove[i]);
 	}
+	this._buildSlidesIndex();
 	this.cbIndex = undefined;
+	this.windowScrollGridHandler();
 };
 
 Lightbox.prototype.getCBIndex = function(cb) {
@@ -251,14 +296,11 @@ Lightbox.prototype.getCBIndex = function(cb) {
 		// build checkbox index
 		this.cbIndex = [];
 		var i, node, c;
-		var nodes = this.grid.childNodes;
-		for (i=0 ; i<nodes.length ; i++) {
-			node = nodes[i];
-			if (node.nodeName === 'SPAN') {
-				c = node.getElementsByTagName('input')[0];
-				c.index = this.cbIndex.length;
-				this.cbIndex[this.cbIndex.length] = c;
-			}
+		for (i=0 ; i<this.slides.length ; i++) {
+			node = this.slides[i];
+			c = node.getElementsByTagName('input')[0];
+			c.index = this.cbIndex.length;
+			this.cbIndex.push(c);
 		}
 	}
 	return cb.index;
@@ -286,6 +328,98 @@ Lightbox.prototype.selectCBRange = function(evt) {
 	}
 };
 
+Lightbox.prototype.refreshGrid = function() {
+	var req = new XMLHttpRequest();
+	self = this;
+	req.onreadystatechange = function() {
+		switch (req.readyState) {
+			case 1 :
+				showProgressImage();
+				break;
+			case 4 :
+				hideProgressImage();
+				if (req.status === 200) {
+					self._refreshGrid(req);
+				}
+				break;
+		}
+	};
+	
+	var url = absolute_url() +
+			  '/portfolio_thumbnails_tail?start:int=0&size:int=' +
+			  this.slides.length;
+	req.open('GET', url, true);
+	req.send();
+};
+
+Lightbox.prototype._refreshGrid = function(req) {
+	var doc = req.responseXML.documentElement;
+	var i, node;
+	var j = 0;
+	for (i=0 ; i<doc.childNodes.length ; i++) {
+		node = doc.childNodes[i];
+		if (node.nodeType === 1) {
+			node = getCopyOfNode(node);
+			this.disableDefaultDragging(node);
+			this.grid.replaceChild(node, this.slides[j]);
+			this.slides[j] = node;
+			j++;
+		}
+	}
+	this.cbIndex = undefined;
+};
+
+Lightbox.prototype.fetchTail = function() {
+	var req = new XMLHttpRequest();
+	var self = this;
+	req.onreadystatechange = function() {
+		switch (req.readyState) {
+			case 1 :
+				showProgressImage();
+				break;
+			case 4 :
+				hideProgressImage();
+				if (req.status === 200) {
+					self._appendTail(req);
+				}
+				break;
+		}
+	};
+	
+	var url = absolute_url() +
+			  '/portfolio_thumbnails_tail?start:int=' +
+			  String(this.slides.length) +
+			  '&size:int=10' +
+			  '&container_type=' +
+			  this.container_type;
+	req.open('GET', url, true);
+	req.send();
+};
+
+Lightbox.prototype._appendTail = function(req) {
+	var doc = req.responseXML.documentElement;
+	var i, node, c;
+	for (i=0 ; i<doc.childNodes.length ; i++) {
+		node = doc.childNodes[i];
+		if (node.nodeType === 1) {
+			this.lastSlide = this.grid.appendChild(getCopyOfNode(node));
+			this.disableDefaultDragging(this.lastSlide);
+			this.slides.push(this.lastSlide);
+			if (this.cbIndex) {
+				c = this.lastSlide.getElementsByTagName('input')[0];
+				c.index = this.cbIndex.length;
+				this.cbIndex.push(c);
+				
+			}
+		}
+	}
+	this.fetchingDisabled = false;
+	if (doc.getAttribute('nomore')) {
+		this.complete = true;
+	}
+	this.windowScrollGridHandler();
+};
+
 
 var _outlineSelectedSlide;
 if (browser.isGecko) {
@@ -302,4 +436,160 @@ else {
 	};
 }
 
+if (browser.isGecko) {
+	Lightbox.prototype.disableDefaultDragging = function(element) {
+		if (!element) {
+			element = this.grid;
+		}
+		var i, j, name, elements;
+		var elementsNames = ['a', 'img'];
+		for (i=0 ; i < elementsNames.length ; i++) {
+			name = elementsNames[i];
+			elements = element.getElementsByTagName(name);
+			for (j=0 ; j < elements.length ; j++) {
+				elements[j].draggable=false;
+			}
+		}
+	};
+}
+else {
+	Lightbox.prototype.disableDefaultDragging = function() {};
+}
+
+Lightbox.prototype.getSelectedSlides = function() {
+	var i, e, slide;
+	var slides = [];
+	for (i=0 ; i<this.form.elements.length ; i++) {
+		e = this.form.elements[i];
+		if (e.type === 'checkbox' && e.checked) {
+			slide = e.parentNode.parentNode;
+			slides.push(slide);
+		}
+	}
+	return slides;
+};
+
+
+Lightbox.prototype.enableDDOrdering = function() {
+	addListener(this.grid, 'dragstart', this._DDOrderingListeners.dragstart);
+	addListener(this.grid, 'dragover', this._DDOrderingListeners.dragover);
+	addListener(this.grid, 'dragend', this._DDOrderingListeners.dragend);
+};
+
+Lightbox.prototype.disableDDOrdering = function() {
+	removeListener(this.grid, 'dragstart', this._DDOrderingListeners.dragstart);
+	removeListener(this.grid, 'dragover', this._DDOrderingListeners.dragover);
+	removeListener(this.grid, 'dragend', this._DDOrderingListeners.dragend);
+};
+
+Lightbox.prototype.onDragStart = function(evt) {
+	var target = getTargetedObject(evt);
+	this.dragged = target;
+	this.draggedSelection = this.getSelectedSlides();
+	if (this.draggedSelection.indexOf(target) === -1) {
+		this.draggedSelection.push(target);
+	}
+	evt.dataTransfer.setData('text', '');
+	var i, slide;
+	for(i=0 ; i<this.draggedSelection.length ; i++) {
+		slide = this.draggedSelection[i];
+		slide.style.opacity = 0;
+		slide.style.width = 0;
+	}
+};
+
+Lightbox.prototype.onDragOver = function(evt) {
+	if (!this.dragged) {
+		return;
+	}
+	var target = getTargetedObject(evt);
+	while(target && target.className !== 'slide') {
+		target = target.parentNode;
+	}
+	if (!target) {return;}
+	target = target.parentNode;
+	if (target !== this.dragged) {
+		target.classList.add('dragover');
+	}
+	if (this.lastDropTarget && this.lastDropTarget !== target) {
+		this.lastDropTarget.classList.remove('dragover');
+	}
+	this.lastDropTarget = target;
+};
+
+Lightbox.prototype.onDragEnd = function(evt) {
+	if (this.lastDropTarget) {
+		this.lastDropTarget.classList.remove('dragover');
+		var i, slide;
+		this.pendingMovedSlides = [];
+		for(i=this.draggedSelection.length -1 ; i>=0 ; i--) {
+			slide = this.draggedSelection[i].cloneNode(true);
+			this.pendingMovedSlides.push(slide);
+			this.grid.insertBefore(slide, this.lastDropTarget.nextSibling);
+			slide.style.opacity = 1;
+			slide.style.width = '';
+		}
+		this.moveSelectedPhotos();
+	}
+	// this.draggedSelection = this.lastDropTarget
+	this.dragged = undefined;
+};
+
+Lightbox.prototype.moveSelectedPhotos = function() {
+	var req = new XMLHttpRequest();
+	self = this;
+	req.onreadystatechange = function() {
+		switch (req.readyState) {
+			case 1 :
+				showProgressImage();
+				break;
+			case 4 :
+				hideProgressImage();
+				self._moveSelectedPhotos(req);
+				break;
+		}
+	};
+	
+	var url = absolute_url() + '/portfolio_move_photos';
+	req.open("POST", url, true);
+	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
+	var query = 'container_type=' + this.container_type;
+	var i;
+	for (i=0 ; i<this.draggedSelection.length ; i++) {
+		query += '&uids:list=' + this.draggedSelection[i].getAttribute('name');
+	}
+	query += '&afterUid=' + this.lastDropTarget.getAttribute('name');
+	req.send(query);
+};
+
+Lightbox.prototype._moveSelectedPhotos = function(req) {
+	var i, slide, cb;
+	if (req.status === 200) {
+		var doc = req.responseXML.documentElement;
+		if (doc.nodeName === 'ok') {
+			for(i=0 ; i<this.draggedSelection.length ; i++) {
+				slide = this.draggedSelection[i];
+				this.grid.removeChild(slide);
+				cb = this.pendingMovedSlides[i].getElementsByTagName('input')[0];
+				cb.checked = false;
+				cb.removeAttribute('checked');
+			}
+			this.pendingMovedSlides = undefined;
+			this.cbIndex = undefined;
+			return;
+		}
+	}
+	
+	for(i=0 ; i<this.pendingMovedSlides.length ; i++) {
+		slide = this.pendingMovedSlides[i];
+		this.grid.removeChild(slide);
+	}
+	
+	for(i=0 ; i<this.draggedSelection.length ; i++) {
+		slide = this.draggedSelection[i];
+		slide.style.opacity = 1;
+		slide.style.width = '';
+	}
+};
+
 }());
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