X-Git-Url: https://svn.cri.ensmp.fr/git/Portfolio.git/blobdiff_plain/a3732c58de2390b45546badf2e36cf4fe33c72aa..4d5ba04bc322584f7837abf736eb9e414bfc0e44:/skins/photo_film_viewer.js

diff --git a/skins/photo_film_viewer.js b/skins/photo_film_viewer.js
index 9bbf5ef..0b1fde3 100644
--- a/skins/photo_film_viewer.js
+++ b/skins/photo_film_viewer.js
@@ -83,37 +83,45 @@ FilmSlider = function(filmBar, slider, ctxInfos, image, toolbar, breadcrumbs) {
 };
 
 if (!browser.isMobile) {
-FilmSlider.prototype.resizeSlider = function(evt) {
-	var filmBarWidth = this.filmBarWidth;
-	if (!filmBarWidth) { return; }
-	var filmWidth = this.slideSize * this.filmLength;
-	var sliderRatio = this.sliderRatio =  filmBarWidth / filmWidth;
-	var sliderWidth = filmBarWidth * sliderRatio;
-	this.rail.style.width = filmBarWidth + 'px';
-	this.rail.style.display = 'block';
-	this.rail.style.visibility = 'visible';
-	if (sliderRatio < 1) {
-		this.slider.style.width = Math.round(sliderWidth) + 'px';
-		this.slider.style.visibility = 'visible';
-	}
-	else {
-		this.slider.style.visibility = 'hidden';
-	}
+	FilmSlider.prototype.resizeSlider = function(evt) {
+		var filmBarWidth = this.filmBarWidth;
+		if (!filmBarWidth) { return; }
+		var filmWidth = this.slideSize * this.filmLength;
+		var sliderRatio = this.sliderRatio =  filmBarWidth / filmWidth;
+		var sliderWidth = filmBarWidth * sliderRatio;
+		this.rail.style.width = filmBarWidth + 'px';
+		this.rail.style.display = 'block';
+		this.rail.style.visibility = 'visible';
+		if (sliderRatio < 1) {
+			this.slider.style.width = Math.round(sliderWidth) + 'px';
+			this.slider.style.visibility = 'visible';
+		}
+		else {
+			this.slider.style.visibility = 'hidden';
+		}
 	
-	this.winSize = {'width'	 : getWindowWidth(),
-					'height' : getWindowHeight()};
-	this.maxRightPosition = filmBarWidth - sliderWidth;
-	this.sliderSpeedRatio = - (filmBarWidth - sliderWidth) / (filmWidth - filmBarWidth);
-	if (!this.initialized) {
-		this.centerSlide(this.center);
-		this.selectedSlide = this.filmBar.getElementsByTagName('img')[this.center].parentNode;
-		this.initialized = true;
-	}
-};
+		this.winSize = {'width'	 : getWindowWidth(),
+						'height' : getWindowHeight()};
+		this.maxRightPosition = filmBarWidth - sliderWidth;
+		this.sliderSpeedRatio = - (filmBarWidth - sliderWidth) / (filmWidth - filmBarWidth);
+		if (!this.initialized) {
+			this.centerSlide(this.center);
+			this.selectedSlide = this.filmBar.getElementsByTagName('img')[this.center].parentNode;
+			this.initialized = true;
+		}
+	};
 }
 
 else {
-	FilmSlider.prototype.resizeSlider = function(evt) {};
+	// pas de barre de scroll horizontal pour les tablettes
+	FilmSlider.prototype.resizeSlider = function(evt) {
+		this.filmMaxX = - (getObjectWidth(this.film) - this.filmBarWidth);
+		if (!this.initialized) {
+			this.centerSlide(this.center);
+			this.selectedSlide = this.filmBar.getElementsByTagName('img')[this.center].parentNode;
+			this.initialized = true;
+		}
+	};
 }
 
 FilmSlider.prototype._checkSizeAfterLoad = function(evt) {
@@ -158,7 +166,12 @@ FilmSlider.prototype.fitToScreen = function(evt) {
 
 FilmSlider.prototype._fitToScreen = function(evt) {
 	var wh = getWindowHeight();
-	var rb = getObjectTop(this.rail) + getObjectHeight(this.rail); // rail bottom
+	if (!browser.isMobile) {
+		var rb = getObjectTop(this.rail) + getObjectHeight(this.rail); // rail bottom
+	}
+	else {
+		var rb = getObjectTop(this.filmBar) + getObjectHeight(this.filmBar); // film bottom
+	}
 	var delta = wh - rb;
 	var sh = getObjectHeight(this.stretchable);
 	var newSize = sh + delta;
@@ -195,15 +208,25 @@ FilmSlider.prototype.getBestFitSize = function(ratio) {
 	return DEFAULT_IMAGE_SIZES[i];
 };
 
-FilmSlider.prototype.centerSlide = function(slideIndex) {
-	if (this.sliderRatio > 1) { return; }
-	var filmBarWidth = getObjectWidth(this.filmBar);
-	var x = slideIndex * this.slideSize;
-	x = x - (filmBarWidth - this.slideSize) / 2.0;
-	x = x * this.sliderSpeedRatio;
-	var p = new Point( -x, 0 );
-	this.setSliderPosition(p);
-};
+if (!browser.isMobile) {
+	FilmSlider.prototype.centerSlide = function(slideIndex) {
+		if (this.sliderRatio > 1) { return; }
+		var filmBarWidth = getObjectWidth(this.filmBar);
+		var x = slideIndex * this.slideSize;
+		x = x - (filmBarWidth - this.slideSize) / 2.0;
+		x = x * this.sliderSpeedRatio;
+		var p = new Point( -x, 0 );
+		this.setSliderPosition(p);
+	};
+}
+else {
+	FilmSlider.prototype.centerSlide = function(slideIndex) {
+		var filmBarWidth = getObjectWidth(this.filmBar);
+		var x = slideIndex * this.slideSize;
+		x = x - (filmBarWidth - this.slideSize) / 2.0;
+		this.setFilmPosition(-x);
+	};
+}
 
 FilmSlider.prototype.setSliderPosition = function(point) {
 	if(point.x < 0) { point.x = 0; }
@@ -212,9 +235,18 @@ FilmSlider.prototype.setSliderPosition = function(point) {
 	this.setFilmPosition(point);
 };
 
-FilmSlider.prototype.setFilmPosition = function(point) {
-	this.film.style.left = point.x / this.sliderSpeedRatio + 'px';
-};
+if (!browser.isMobile) {
+	FilmSlider.prototype.setFilmPosition = function(point) {
+		this.film.style.left = point.x / this.sliderSpeedRatio + 'px';
+	};
+}
+else {
+	FilmSlider.prototype.setFilmPosition = function(x) {
+		x = Math.min(0, x);
+		x = Math.max(this.filmMaxX, x);
+		this.film.style.left = String(x) + 'px';
+	};
+}
 
 FilmSlider.prototype.getSliderPosition = function() {
 	var x = parseInt(this.slider.style.left, 10);
@@ -581,15 +613,46 @@ 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;
-	this.film.style.left = String(this.filmStartX - delta) + 'px';
+	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
+            var delta = 0;
+            var dt = 25
+    		var self = this;
+	
+    		function animate() {
+                // 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;
 };