Merge pull request #126 from hennevogel/feature_newsite

Merge https://software.opensuse.org/newsite/ and make it translateable

app/assets/javascripts/main.js

@@ -0,0 +1,111 @@
+// Dean Attali / Beautiful Jekyll 2016
+
+var main = {
+
+  bigImgEl : null,
+  numImgs : null,
+
+  init : function() {
+    // Shorten the navbar after scrolling a little bit down
+    $(window).scroll(function() {
+        if ($(".navbar").offset().top > 50) {
+            $(".navbar").addClass("top-nav-short");
+        } else {
+            $(".navbar").removeClass("top-nav-short");
+        }
+    });
+
+    // On mobile, hide the avatar when expanding the navbar menu
+    $('#main-navbar').on('show.bs.collapse', function () {
+      $(".navbar").addClass("top-nav-expanded");
+    });
+    $('#main-navbar').on('hidden.bs.collapse', function () {
+      $(".navbar").removeClass("top-nav-expanded");
+    });
+
+    // On mobile, when clicking on a multi-level navbar menu, show the child links
+    $('#main-navbar').on("click", ".navlinks-parent", function(e) {
+      var target = e.target;
+      $.each($(".navlinks-parent"), function(key, value) {
+        if (value == target) {
+          $(value).parent().toggleClass("show-children");
+        } else {
+          $(value).parent().removeClass("show-children");
+        }
+      });
+    });
+
+    // show the big header image	
+    main.initImgs();
+  },
+
+  initImgs : function() {
+    // If the page was large images to randomly select from, choose an image
+    if ($("#header-big-imgs").length > 0) {
+      main.bigImgEl = $("#header-big-imgs");
+      main.numImgs = main.bigImgEl.attr("data-num-img");
+
+          // 2fc73a3a967e97599c9763d05e564189
+	  // set an initial image
+	  var imgInfo = main.getImgInfo();
+	  var src = imgInfo.src;
+	  var desc = imgInfo.desc;
+  	  main.setImg(src, desc);
+
+	  // For better UX, prefetch the next image so that it will already be loaded when we want to show it
+  	  var getNextImg = function() {
+	    var imgInfo = main.getImgInfo();
+	    var src = imgInfo.src;
+	    var desc = imgInfo.desc;		  
+
+		var prefetchImg = new Image();
+  		prefetchImg.src = src;
+		// if I want to do something once the image is ready: `prefetchImg.onload = function(){}`
+
+  		setTimeout(function(){
+                  var img = $("<div></div>").addClass("big-img-transition").css("background-image", 'url(' + src + ')');
+  		  $(".intro-header.big-img").prepend(img);
+  		  setTimeout(function(){ img.css("opacity", "1"); }, 50);
+
+		  // after the animation of fading in the new image is done, prefetch the next one
+  		  //img.one("transitioned webkitTransitionEnd oTransitionEnd MSTransitionEnd", function(){
+		  setTimeout(function() {
+		    main.setImg(src, desc);
+			img.remove();
+  			getNextImg();
+		  }, 1000); 
+  		  //});		
+  		}, 6000);
+  	  };
+
+	  // If there are multiple images, cycle through them
+	  if (main.numImgs > 1) {
+  	    getNextImg();
+	  }
+    }
+  },
+
+  getImgInfo : function() {
+  	var randNum = Math.floor((Math.random() * main.numImgs) + 1);
+    var src = main.bigImgEl.attr("data-img-src-" + randNum);
+	var desc = main.bigImgEl.attr("data-img-desc-" + randNum);
+
+	return {
+	  src : src,
+	  desc : desc
+	}
+  },
+
+  setImg : function(src, desc) {
+	$(".intro-header.big-img").css("background-image", 'url(' + src + ')');
+	if (typeof desc !== typeof undefined && desc !== false) {
+	  $(".img-desc").text(desc).show();
+	} else {
+	  $(".img-desc").hide();  
+	}
+  }
+};
+
+// 2fc73a3a967e97599c9763d05e564189
+
+document.addEventListener('DOMContentLoaded', main.init);