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gaia/apps/music/components/dom-scheduler/demo-app/js/app.js

@@ -0,0 +1,95 @@
+(function() {
+  var debug = false;
+  var headerHeight = 50;
+  var maxItemCount = 28;
+
+  var endEvent = ('ontouchstart' in window) ? 'touchend' : 'mouseup';
+
+  window.addEventListener('load', function() {
+    var listContainer = document.querySelector('section');
+
+    var source = new BaconSource();
+    var list = new FastList(listContainer, source);
+    var dialog = document.querySelector('gaia-dialog-alert');
+
+    function updateHeader() {
+      return scheduler.mutation(function() {
+        var h1 = document.querySelector('h1');
+        h1.textContent = 'Main List (' + source.fullLength() + ')';
+        h1.scrollTop; // flush
+      });
+    }
+    updateHeader();
+
+    function clearNewIndicator() {
+      var h1After = document.querySelector('#h1-after');
+
+      if (h1After.dataset.anim == 'reveal') {
+        scheduler.transition(function() {
+          h1After.dataset.anim = 'hide';
+        }, h1After, 'animationend');
+      }
+    }
+    listContainer.addEventListener('top-reached', clearNewIndicator);
+
+    function updateNewIndicator() {
+      var h1After = document.querySelector('#h1-after');
+      if (h1After.dataset.anim == 'reveal') {
+        return;
+      }
+
+      scheduler.transition(function() {
+        h1After.dataset.anim = 'reveal';
+      }, h1After, 'animationend');
+    }
+    listContainer.addEventListener('hidden-new-content', updateNewIndicator);
+
+    function openGaiaDialog(evt) {
+      scheduler.mutation(function() {
+        var detail = evt.detail;
+        var li = source.getRecordAt(detail.index);
+        dialog.textContent = li.title + ' item clicked!';
+        dialog.open(detail.clickEvt);
+      });
+    }
+    list.list.addEventListener('item-selected', openGaiaDialog);
+
+    function newContentHandler() {
+      var newContent = {
+        title: 'NEW Bacon ' + Date.now().toString().slice(7, -1),
+        body: 'Turkey BLT please.'
+      };
+
+      source.insertAtIndex(0, newContent);
+      list.insertedAtIndex(0);
+
+      updateHeader();
+    }
+
+    setInterval(newContentHandler, 15000);
+    window.addEventListener('new-content', newContentHandler);
+
+    window.pushNewContent = function() {
+      window.dispatchEvent(new CustomEvent('new-content'));
+    };
+
+    var button = document.querySelector('button');
+    button.addEventListener(endEvent, function() {
+      Promise.all([toggleTransitioning(), list.toggleEditMode()])
+        .then(updateText)
+        .then(toggleTransitioning);
+    });
+
+    function updateText(text) {
+      return scheduler.mutation(function() {
+        button.textContent = list.editing ? 'Exit' : 'Edit';
+      });
+    }
+
+    function toggleTransitioning() {
+      return scheduler.feedback(function() {
+        button.classList.toggle('transitioning');
+      }, button, 'transitionend');
+    }
+  });
+})();