Fix issue #75 : chargement des images en lazyload, reste à le rendre optionnel

4 files changed, 29 insertions, 3 deletions

diff --git a/app/App_FrontController.php b/app/App_FrontController.php
index 77261280e..5729a115d 100644
--- a/app/App_FrontController.php
+++ b/app/App_FrontController.php
@@ -56,6 +56,7 @@ class App_FrontController extends FrontController {
 			View::appendScript ('https://login.persona.org/include.js');
 		}
 		View::appendScript (Url::display ('/scripts/jquery.js'));
+		View::appendScript (Url::display ('/scripts/jquery.lazyload.min.js'));
 		View::appendScript (Url::display ('/scripts/notification.js'));
 	}
 
diff --git a/app/views/index/index.phtml b/app/views/index/index.phtml
index 9974a9b0b..7037b2405 100644
--- a/app/views/index/index.phtml
+++ b/app/views/index/index.phtml
@@ -1,4 +1,12 @@
 <?php
+function lazyimg($content) {
+	return preg_replace(
+		'/<img([^<]+)src=([\'"])([^"\']*)([\'"])([^<]*)>/i',
+		'<img$1src="' . Url::display('/data/grey.gif') . '" data-original="$3"$5>',
+		$content
+	);
+}
+
 $output = Request::param ('output', 'normal');
 
 if ($output == 'rss') {
@@ -58,7 +66,7 @@ if ($output == 'rss') {
 				<h1 class="title"><?php echo $item->title (); ?></h1>
 				<?php $author = $item->author (); ?>
 				<?php echo $author != '' ? '<div class="author">' . Translate::t ('by_author', $author) . '</div>' : ''; ?>
-				<?php echo $item->content (); ?>
+				<?php echo lazyimg($item->content ()); ?>
 			</div>
 
 			<ul class="horizontal-list bottom">
diff --git a/app/views/javascript/main.phtml b/app/views/javascript/main.phtml
index e6c882333..443f62c31 100644
--- a/app/views/javascript/main.phtml
+++ b/app/views/javascript/main.phtml
@@ -109,8 +109,8 @@ function mark_favorite (active) {
 }
 
 function init_img () {
-	$(".flux .content img").each (function () {
-		if ($(this).width () > ($("#stream .content").width()) / 2) {
+	$(".flux_content .content img").each (function () {
+		if ($(this).width () > ($(".flux_content .content").width()) / 2) {
 			$(this).addClass("big");
 		}
 	});
@@ -125,6 +125,8 @@ function init_posts () {
 	<?php } ?>
 
 	init_img ();
+	// TODO rendre optionnel
+	$(".flux .content img").lazyload();
 
 	if (hide_posts) {
 		$(".flux:not(.active) .flux_content").hide ();
diff --git a/public/scripts/jquery.lazyload.min.js b/public/scripts/jquery.lazyload.min.js
new file mode 100644
index 000000000..79663d7bb
--- /dev/null
+++ b/public/scripts/jquery.lazyload.min.js
@@ -0,0 +1,15 @@
+/*
+ * Lazy Load - jQuery plugin for lazy loading images
+ *
+ * Copyright (c) 2007-2013 Mika Tuupola
+ *
+ * Licensed under the MIT license:
+ *   http://www.opensource.org/licenses/mit-license.php
+ *
+ * Project home:
+ *   http://www.appelsiini.net/projects/lazyload
+ *
+ * Version:  1.8.4
+ *
+ */
+(function(a,b,c,d){var e=a(b);a.fn.lazyload=function(c){function i(){var b=0;f.each(function(){var c=a(this);if(h.skip_invisible&&!c.is(":visible"))return;if(!a.abovethetop(this,h)&&!a.leftofbegin(this,h))if(!a.belowthefold(this,h)&&!a.rightoffold(this,h))c.trigger("appear"),b=0;else if(++b>h.failure_limit)return!1})}var f=this,g,h={threshold:0,failure_limit:0,event:"scroll",effect:"show",container:b,data_attribute:"original",skip_invisible:!0,appear:null,load:null};return c&&(d!==c.failurelimit&&(c.failure_limit=c.failurelimit,delete c.failurelimit),d!==c.effectspeed&&(c.effect_speed=c.effectspeed,delete c.effectspeed),a.extend(h,c)),g=h.container===d||h.container===b?e:a(h.container),0===h.event.indexOf("scroll")&&g.bind(h.event,function(a){return i()}),this.each(function(){var b=this,c=a(b);b.loaded=!1,c.one("appear",function(){if(!this.loaded){if(h.appear){var d=f.length;h.appear.call(b,d,h)}a("<img />").bind("load",function(){c.hide().attr("src",c.data(h.data_attribute))[h.effect](h.effect_speed),b.loaded=!0;var d=a.grep(f,function(a){return!a.loaded});f=a(d);if(h.load){var e=f.length;h.load.call(b,e,h)}}).attr("src",c.data(h.data_attribute))}}),0!==h.event.indexOf("scroll")&&c.bind(h.event,function(a){b.loaded||c.trigger("appear")})}),e.bind("resize",function(a){i()}),/iphone|ipod|ipad.*os 5/gi.test(navigator.appVersion)&&e.bind("pageshow",function(b){b.originalEvent.persisted&&f.each(function(){a(this).trigger("appear")})}),a(b).load(function(){i()}),this},a.belowthefold=function(c,f){var g;return f.container===d||f.container===b?g=e.height()+e.scrollTop():g=a(f.container).offset().top+a(f.container).height(),g<=a(c).offset().top-f.threshold},a.rightoffold=function(c,f){var g;return f.container===d||f.container===b?g=e.width()+e.scrollLeft():g=a(f.container).offset().left+a(f.container).width(),g<=a(c).offset().left-f.threshold},a.abovethetop=function(c,f){var g;return f.container===d||f.container===b?g=e.scrollTop():g=a(f.container).offset().top,g>=a(c).offset().top+f.threshold+a(c).height()},a.leftofbegin=function(c,f){var g;return f.container===d||f.container===b?g=e.scrollLeft():g=a(f.container).offset().left,g>=a(c).offset().left+f.threshold+a(c).width()},a.inviewport=function(b,c){return!a.rightoffold(b,c)&&!a.leftofbegin(b,c)&&!a.belowthefold(b,c)&&!a.abovethetop(b,c)},a.extend(a.expr[":"],{"below-the-fold":function(b){return a.belowthefold(b,{threshold:0})},"above-the-top":function(b){return!a.belowthefold(b,{threshold:0})},"right-of-screen":function(b){return a.rightoffold(b,{threshold:0})},"left-of-screen":function(b){return!a.rightoffold(b,{threshold:0})},"in-viewport":function(b){return a.inviewport(b,{threshold:0})},"above-the-fold":function(b){return!a.belowthefold(b,{threshold:0})},"right-of-fold":function(b){return a.rightoffold(b,{threshold:0})},"left-of-fold":function(b){return!a.rightoffold(b,{threshold:0})}})})(jQuery,window,document)