Fetch des photos suivante (implémentation incomplète).

[Portfolio.git] / skins / photo_lightbox_viewer.js

diff --git a/skins/photo_lightbox_viewer.js b/skins/photo_lightbox_viewer.js
index ac20cd3..9a57ac2 100644 (file)
--- a/skins/photo_lightbox_viewer.js
+++ b/skins/photo_lightbox_viewer.js
@@ -14,6 +14,7 @@ var reSelected = /.*selected.*/;
 Lightbox = function(grid, toolbar) {
        var self = this;
        this.grid = grid;
+    this.lastSlide = this.grid.children[this.grid.children.length-1];
        this.toolbar = toolbar;
        if (toolbar) {
                this.toolbarFixed = false;
@@ -51,6 +52,9 @@ Lightbox.prototype.windowScrollHandler = function(evt) {
                this.toolbarFixed = false;
                this.switchToolBarPositioning(false);
        }
+    if (window.scrollY > this.lastSlide.firstElementChild.offsetTop - getWindowHeight()) {
+        this.fetchTail();
+    }
 };
 
 Lightbox.prototype.mouseClickHandler = function(evt) {
@@ -289,20 +293,6 @@ Lightbox.prototype.selectCBRange = function(evt) {
 };
 
 Lightbox.prototype.refreshGrid = function() {
-       if (!this.uidIndex) {
-               // build checkbox index
-               this.uidIndex = {};
-               var i, node, length=0;
-               var nodes = this.grid.childNodes;
-               for (i=0 ; i<nodes.length ; i++) {
-                       node = nodes[i];
-                       if (node.nodeName === 'SPAN') {
-                               this.uidIndex[node.name] = node;
-                               length++;
-                       }
-               }
-               this.uidIndex.length = length;
-       }
        var req = new XMLHttpRequest();
        self = this;
        req.onreadystatechange = function() {
@@ -321,13 +311,52 @@ Lightbox.prototype.refreshGrid = function() {
        
        var url = absolute_url() +
                          '/portfolio_thumbnails_tail?start:int=0&size:int=' +
-                         this.uidIndex.length;
+                         this.grid.children.length;
        req.open('GET', url, true);
        req.send();
 };
 
 Lightbox.prototype._refreshGrid = function(req) {
-       console.log(req);
+    var doc = req.responseXML.documentElement;
+    var i;
+    var slides = this.grid.children;
+    for (i=0 ; i<doc.children.length ; i++) {
+        this.grid.replaceChild(getCopyOfNode(doc.children[i]), slides[i]);
+    }
+};
+
+Lightbox.prototype.fetchTail = 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._appendTail(req)
+                               }
+                               break;
+               }
+       };
+       
+       var url = absolute_url() +
+                         '/portfolio_thumbnails_tail?start:int=' +
+              String(this.grid.children.length + 1 ) +
+              '&size:int=10';
+       req.open('GET', url, true);
+       req.send();
+};
+
+Lightbox.prototype._appendTail = function(req) {
+    var doc = req.responseXML.documentElement;
+    var i;
+    var slides = this.grid.children;
+    for (i=0 ; i<doc.children.length ; i++) {
+        this.grid.replaceChild(getCopyOfNode(doc.children[i]), slides[i]);
+    }
 };