bugfix. ménage.

[Portfolio.git] / skins / photo_film_viewer.js

diff --git a/skins/photo_film_viewer.js b/skins/photo_film_viewer.js
index 35679e1..b86e94d 100644 (file)
--- a/skins/photo_film_viewer.js
+++ b/skins/photo_film_viewer.js
@@ -146,10 +146,11 @@ FilmSlider.prototype._checkSize = function(evt) {
 FilmSlider.prototype._checkSizeStability = function(evt) {
        var self = this;
        var i;
+       var checkAgain = function(evt){self._checkSizeStability();};
        for (i=0 ; i<this._barSizes.length - 1 ; i++) {
                if (this._barSizes[i] !== this._barSizes[i+1]) {
                        this._barSizes = [];
-                       setTimeout(function(evt){self._checkSizeStability();}, 250);
+                       setTimeout(checkAgain, 250);
                        return;
                }
        }
@@ -166,11 +167,12 @@ FilmSlider.prototype.fitToScreen = function(evt) {
 
 FilmSlider.prototype._fitToScreen = function(evt) {
        var wh = getWindowHeight();
+       var rb;
        if (!browser.isMobile) {
-               var rb = getObjectTop(this.rail) + getObjectHeight(this.rail); // rail bottom
+               rb = getObjectTop(this.rail) + getObjectHeight(this.rail); // rail bottom
        }
        else {
-               var rb = getObjectTop(this.filmBar) + getObjectHeight(this.filmBar); // film bottom
+               rb = getObjectTop(this.filmBar) + getObjectHeight(this.filmBar); // film bottom
        }
        var delta = wh - rb;
        var sh = getObjectHeight(this.stretchable);
@@ -289,6 +291,7 @@ FilmSlider.prototype.addEventListeners = function() {
        addListener(this.toolbar, 'click', function(evt){thisSlider.toolbarClickHandler(evt);});
        addListener(window, 'load', function(evt){thisSlider.fitToScreen(evt);});
        addListener(window, 'load', function(evt){thisSlider._checkSizeAfterLoad(evt);});
+       addListener(window, 'load', function(evt){thisSlider.startThumbnailsLoadQueue(evt);});
        
        // dd listeners
        addListener(this.slider, 'mousedown', this.ddHandlers.down);
@@ -354,6 +357,18 @@ FilmSlider.prototype.mouseOutHandler = function(evt) {
        }
 };
 
+FilmSlider.prototype.translateImgUrl = function(url) {
+       var canonicalImgUrl;
+       if (this.ctxUrlTranslation[0]) {
+               canonicalImgUrl = url.replace(this.ctxUrlTranslation[0],
+                                                                         this.ctxUrlTranslation[1]);
+       }
+       else {
+               canonicalImgUrl = url;
+       }
+       return canonicalImgUrl;
+};
+
 FilmSlider.prototype.thumbnailClickHandler = function(evt) {
        var target = getTargetedObject(evt);
        while (target.tagName !== 'A' && target !== this.filmBar) { target = target.parentNode; }
@@ -370,12 +385,7 @@ FilmSlider.prototype.thumbnailClickHandler = function(evt) {
                history.pushState(target.href, '', target.href);
                
                var imgBaseUrl = target.href;
-               var canonicalImgUrl;
-               if (this.ctxUrlTranslation[0]) {
-                       canonicalImgUrl = imgBaseUrl.replace(this.ctxUrlTranslation[0],
-                                                                                                this.ctxUrlTranslation[1]);
-               }
-               else { canonicalImgUrl = imgBaseUrl; }
+               var canonicalImgUrl = this.translateImgUrl(imgBaseUrl);
                
                var ajaxUrl = imgBaseUrl + '/photo_view_ajax';
                var thisFS = this;
@@ -613,16 +623,46 @@ else if (browser.isIE6up) {
 
 FilmSlider.prototype.touchStartHandler = function(evt) {
        this.filmStartX = parseInt(this.film.style.left, 10);
-       this.touchStartX = evt.pageX;
+       this.touchStartX = evt.changedTouches[0].screenX;
+       this.touchStartTime = (new Date()).getTime();
 };
 
 FilmSlider.prototype.touchMoveHandler = function(evt) {
-       var delta = this.touchStartX - evt.pageX;
+       disableDefault(evt);
+       var delta = this.touchStartX - evt.changedTouches[0].screenX;
        var posX = this.filmStartX - delta;
        this.setFilmPosition(posX);
+       this.lastMoveTime = (new Date()).getTime();
 };
 
 FilmSlider.prototype.touchEndHandler = function(evt) {
+       var x = evt.changedTouches[0].screenX;
+       var delta = x - this.touchStartX;
+       if (delta) {
+               disableDefault(evt);
+               var now = (new Date()).getTime();
+               if (now - this.lastMoveTime < 100) {
+                       // au delà de 100 ms de maintient, on annule l'inertie
+                       var speed = delta / (now - this.touchStartTime);
+                       var x0 = parseInt(this.film.style.left, 10);
+                       var t0 = (new Date()).getTime();
+                       var d = 500; // milisecondes
+                       delta = 0;
+                       var dt = 25;
+                       var self = this;
+       
+                       var animate = function() {
+                               // inertie
+                               var t = (new Date()).getTime() - t0;
+                               if (t < d) {
+                                       setTimeout(animate, dt);
+                                       delta = delta + (1-t/d) * speed * dt; // décelleration linéaire
+                                       self.setFilmPosition(x0 + delta);
+                               }
+                       };
+                       animate();
+               }
+       }
        this.touchStartX = undefined;
 };
 
@@ -692,11 +732,47 @@ FilmSlider.prototype.refreshImage = function() {
 
 FilmSlider.prototype.updateBreadcrumbs = function(url, title) {
        if (this.hasBreadcrumbs) {
-               this.lastBCElement.href = element.getAttribute('lastBcUrl');
-               this.lastBCElement.innerHTML = element.getAttribute('img_id');
+               this.lastBCElement.href = url;
+               this.lastBCElement.innerHTML = title;
+       }
+};
+
+FilmSlider.prototype.startThumbnailsLoadQueue = function(evt) {
+       var thumbnails = this.film.getElementsByTagName('img');
+       if (thumbnails.length === 1) { return; }
+       this.thumbnailsLoadingOrder = [];
+       var leftSize = this.center;
+       var rightSize = thumbnails.length - this.center - 1;
+       var i;
+       for (i=1 ; i<=Math.min(leftSize, rightSize) ; i++) {
+               this.thumbnailsLoadingOrder.push(thumbnails[this.center + i]);
+               this.thumbnailsLoadingOrder.push(thumbnails[this.center - i]);
+       }
+       if (leftSize > rightSize) {
+               for (i = this.center - rightSize - 1 ; i >= 0 ; i--) {
+                       this.thumbnailsLoadingOrder.push(thumbnails[i]);
+               }
+       }
+       else if (leftSize < rightSize) {
+               for (i = this.center + leftSize + 1 ; i < thumbnails.length ; i++) {
+                       this.thumbnailsLoadingOrder.push(thumbnails[i]);
+               }
        }
+       var next = this.thumbnailsLoadingOrder.shift();
+       var self = this;
+       addListener(next, 'load', function(evt){self._loadNextThumb(evt);});
+       next.src = this.translateImgUrl(next.parentNode.href) + '/getThumbnail';
+};
+
+FilmSlider.prototype._loadNextThumb = function(evt) {
+       var next = this.thumbnailsLoadingOrder.shift();
+       if (!next) {return;}
+       var self = this;
+       addListener(next, 'load', function(evt){self._loadNextThumb(evt);});
+       next.src = this.translateImgUrl(next.parentNode.href) + '/getThumbnail';
 };
 
+
 FilmSlider.prototype.startSlideShow = function() {
        this.slideShowSlide = this.pendingSlideShowSlide = this.selectedSlide;
        return this.slideShowSlide.href;