various changes to enable g-overlay

src/g-component.html

@@ -11,13 +11,35 @@
     });
   </script>
   <script>
+    // polyfill for DOMTokenList features: list of classes in add/remove; 
+    // enable method.
+    (function() {
+      'use strict';
+      var add = DOMTokenList.prototype.add;
+      var remove = DOMTokenList.prototype.remove;
+      DOMTokenList.prototype.add = function() {
+        for (var i = 0; i < arguments.length; i++) {
+         add.call(this, arguments[i]);
+        }
+      };
+      DOMTokenList.prototype.remove = function() {
+        for (var i = 0; i < arguments.length; i++) {
+         remove.call(this, arguments[i]);
+        }
+      };
+      DOMTokenList.prototype.enable = function(name, value) {
+        value ? this.add(name) : this.remove(name);
+      };
+    })();
+
     (function(){
       var bindAttrs = function(inAttrs) {
         inAttrs.forEach(function(a) {
           a = a.trim();
           Object.defineProperty(this, a, {
             get: function() {
-              return this.getAttribute(a);
+              return this.hasAttribute(a) ? this.getAttribute(a) :
+                this.__proto__[a];
             },
             set: function(v) {
               return this.setAttribute(a, v);
@@ -26,6 +48,18 @@
         }, this);
       };
 
+      var bindEvents = function(inEvents) {
+        inEvents.forEach(function(e) {
+          // event name: handler name pairs
+          var pair = e.split(":");
+          var event = pair[0].trim();
+          var handler = pair[1].trim();
+          if (this[handler]) {
+            this.addEventListener(event, this[handler].bind(this));
+          }
+        }, this);
+      };
+
       var deref = function(inNode) {
         return inNode.baby || inNode;
       };
@@ -56,8 +90,64 @@
         return observer;
       };
 
-      var $ = document.querySelector.bind(document);
+      var shadowRootCreated = function(inRoot, inUber, inAttributes) {
+        if (inAttributes.attributes) {
+          var attributes = inAttributes.attributes.value.split(",");
+          bindAttrs.call(this, attributes);
+        }
+        if (inAttributes.handlers) {
+          var events = inAttributes.handlers.value.split(",");
+          bindEvents.call(this, events);
+        }
+        establishNodeReferences.call(this, inRoot);
+        if (inUber.shadowRootCreated) {
+          inUber.shadowRootCreated(inRoot);
+        }
+        this.attrObserver = new AttrObserver(this);
+      };
 
+      // utility methods
+
+      var job = function(inJobName, inJob, inWait) {
+        job.stop(inJobName);
+        job._jobs[inJobName] = setTimeout(function() {
+          job.stop(inJobName);
+          inJob();
+        }, inWait);
+      };
+      job.stop = function(inJobName) {
+        if (job._jobs[inJobName]) {
+          clearTimeout(job._jobs[inJobName]);
+          delete job._jobs[inJobName];
+        }
+      };
+      job._jobs = {};
+
+      var utils = {
+        job: job
+      };
+
+      // decorate HTMLElementElement with toolkit API
+
+      HTMLElementElement.prototype.component = function(inUber) {
+        var attributes = this.element.attributes;
+        this.lifecycle({
+          shadowRootCreated: function(inRoot) {
+           shadowRootCreated.call(this, inRoot, inUber, attributes);
+          },
+          created: inUber.created
+        });
+        var p = this.generatedConstructor.prototype = inUber.prototype;
+        // attach utility library
+        // TODO(sjmiles): this is probably not the best way to do this
+        p.utils = utils;
+      };
+
+      // code below provides a shim for declarative event handlers
+      // (aka 'x', as in onclick="x('click')")
+      // it's only really for evaluating syntax, and not 
+      // a real solution
+
       var nodeIterator = function(inNodes, inFn) {
         if (inNodes) {
           for (var i=0, n; (n=inNodes[i]); i++) {
@@ -106,22 +196,6 @@
         }
       };
 
-      HTMLElementElement.prototype.component = function(inUber) {
-        var attributes = this.element.getAttribute("attributes").split(",");
-        //var events = this.getAttribute("events");
-        this.lifecycle({
-          shadowRootCreated: function(inRoot) {
-            bindAttrs.call(this, attributes);
-            establishNodeReferences.call(this, inRoot);
-            if (inUber.shadowRootCreated) {
-              inUber.shadowRootCreated(inRoot);
-            }
-            this.attrObserver = new AttrObserver(this);
-          },
-          created: inUber.created
-        });
-        this.generatedConstructor.prototype = inUber.prototype;
-      };
     })();
   </script>
 </element>

src/g-overlay.html

@@ -0,0 +1,94 @@
+<!--
+/*
+ * Copyright 2012 The Toolkitchen Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style
+ * license that can be found in the LICENSE file.
+ */
+-->
+<element name="g-overlay" attributes="showClass, hideClass, showing, timeout">
+<link rel="components" href="g-component.html">
+<template>
+	<style scoped>
+		@host {
+			position: absolute;
+			z-index: 10;
+		}
+	</style>
+	<content></content>
+</template>
+<script>
+  this.component({
+    created: function(inSuper) {
+      this.jobId = "animate-" + Math.random();
+      this._squelchShowingChange = true;
+      this.showingAttributeChanged();
+    },
+    prototype: {
+      timeout: 1000,
+      // TODO(sorvell): why is this not an attr-prop?
+      allowAnimation: true,
+      toggleShowing: function() {
+        this.showing = this.showing == "true" ? "false" : "true";
+      },
+      showingAttributeChanged: function() {
+        if (this.canAnimate()) {
+          this.animateShowing();
+        } else {
+          this[this.showing == "true" ? "removeAttribute" : "setAttribute"]("hidden", "true");
+        }
+        if (this._squelchShowingChange) {
+          this._squelchShowingChange = false;
+        } else {
+          webkitRequestAnimationFrame(this.fireShowingChange.bind(this));
+        }
+      },
+      setShowingDirect: function(inValue) {
+        this._squelchShowingChange = true;
+        this.showing = inValue;
+      },
+      fireShowingChange: function() {
+        var detail = {showing: this.showing == "true", rect: this.getBoundingClientRect()};
+        var event = new CustomEvent("showingChange", {bubbles: true, detail: detail})
+        this.dispatchEvent(event); 
+      },
+      canAnimate: function() {
+        return this.allowAnimation && Boolean(this.hideClass || this.showClass);
+      },
+      animateShowing: function() {
+        this.removeAttribute("hidden");
+        webkitRequestAnimationFrame(this._animateShowing.bind(this));
+      },
+      _animateShowing: function() {
+        if (this.showClass) {
+          this.classList.enable(this.showClass, this.showing == "true");
+        }
+        if (this.hideClass) {
+          this.classList.enable(this.hideClass, this.showing == "false");
+        }
+        this.unlisten();
+        this.listen();
+      },
+      listen: function() {
+        this.animationListener = this.finishAnimate.bind(this);
+        this.addEventListener("webkitAnimationEnd", this.animationListener, false);
+        this.addEventListener("webkitTransitionEnd", this.animationListener, false);
+        // always finish animation within timeout
+        this.utils.job(this.jobId, this.animationListener, this.timeout);
+      },
+      finishAnimate: function() {
+        //console.log("end animate");
+        if (this.showing == "false") {
+          this.setAttribute("hidden", "true");
+          this.classList.remove(this.hideClass);
+        }
+        this.unlisten();
+      },
+      unlisten: function() {
+        this.removeEventListener("webkitAnimationEnd", this.animationListener, false);
+        this.removeEventListener("webkitTransitionEnd", this.animationListener, false);
+        this.utils.job.stop(this.jobId);
+      }
+    }
+  });
+</script>
+</element>

workbench/overlay.html

@@ -0,0 +1,142 @@
+<!DOCTYPE html>
+<html>
+<head>
+	<title>Overlay</title>
+  <script src="../../polyfills/Components/components-polyfill.js" shimShadow></script>
+  <link rel="components" href="../../toolkit/src/g-overlay.html">
+	<style>
+		body {
+			font-family: Arial, Helvetica, sans-serif;
+			margin: 20px;
+			-webkit-user-select: none;
+			font-size: 13px;
+		}
+
+		.dialog {
+			box-shadow: 0 4px 16px rgba(0,0,0,0.2);
+			background: white;
+			left: 50%;
+			outline: 1px solid rgba(0,0,0,0.2);
+			padding:30px 42px;
+			position: fixed;
+			right: auto;
+			width: 512px;
+			height: auto;
+			overflow: hidden;
+			z-index: 100;
+			top: 72px;
+			margin-left: -256px;
+
+			/*display: none;*/
+			opacity: 0.0;
+			-webkit-transform: scale(1.05);
+			-webkit-transition: all 0.218s;
+		}
+
+		.dialogShown {
+			/*display: block;*/
+			opacity: 1.0;
+			-webkit-transform: scale(1.0);
+		}
+
+		.dialogHidden {
+			/*display: block;*/
+			opacity: 0;
+			-webkit-transform: translateY(-100%);
+			-webkit-transition: all 1s;
+		}
+
+		@-webkit-keyframes shakeFadeIn {
+			0% {
+				display: block;
+				opacity: 0;
+				-webkit-transform: translateX(0);
+			}
+			10% {
+				display: block;
+				-webkit-transform: translateX(-50px);
+			}
+			30% {
+				display: block;
+				-webkit-transform: translateX(50px);
+			}
+			50% {
+				display: block;
+				-webkit-transform: translateX(-25px);
+			}
+			70% {
+				display: block;
+				-webkit-transform: translateX(25px);
+			}
+			90% {
+				display: block;
+				-webkit-transform: translateX(-13px);
+			}
+			100% {
+				display: block;
+				-webkit-transform: translateX(0);
+				opacity: 1;
+			}
+		}
+
+		@-webkit-keyframes shakeFadeOut {
+			0% {
+				opacity: 1;
+				-webkit-transform: translateX(0);
+			}
+			10% {
+				-webkit-transform: translateX(-50px);
+			}
+			30% {
+				-webkit-transform: translateX(50px);
+			}
+			100% {
+				-webkit-transform: translateX(-100%);
+				opacity: 0;
+			}
+		}
+
+		.dialog2Shown {
+			-webkit-animation-duration: 0.5s;
+			-webkit-animation-fill-mode: both;
+			-webkit-animation-name: shakeFadeIn;
+		}
+
+		.dialog2Hidden {
+			-webkit-animation-duration: 0.3s;
+			-webkit-animation-fill-mode: both;
+			-webkit-animation-name: shakeFadeOut;
+		}
+
+	</style>
+</head>
+<body>
+	<button onclick="toggleDialog()">Toggle Dialog</button>
+	<g-overlay id="dialog" class="dialog" showClass="dialogShown" hideClass="dialogHidden">
+		<h2>Dialog</h2>
+		<div>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed fringilla sapien sed enim sollicitudin laoreet. Suspendisse suscipit, metus ac volutpat sodales, libero magna semper lacus, molestie fringilla massa orci ut arcu. Nullam sodales urna sit amet odio vehicula mattis.</div><br><br>
+		<div>Ut aliquam vulputate congue. Vestibulum pretium pretium nulla quis sollicitudin. Praesent lacinia congue erat nec mattis. Fusce commodo lacus est. Duis turpis eros, ultrices sed aliquet non, blandit egestas velit. Integer a augue nec lorem tristique hendrerit. Curabitur imperdiet risus id enim bibendum vestibulum. Integer id magna at arcu faucibus fermentum vel a augue. Sed fringilla venenatis dolor, in blandit magna molestie luctus. Vestibulum dignissim posuere ultrices. Aenean urna nisl, tincidunt vitae iaculis ut, pharetra nec eros.</div><br><br>
+		<div>
+			<g-checkbox></g-checkbox>
+			I agree with this wholeheartedly.
+		</div><br><br>
+		<button onclick="toggleDialog()">OK</button>
+	</g-overlay>
+	<br><br>
+	<button onclick="toggleDialog2()">Toggle Dialog 2</button>
+	<g-overlay id="dialog2" class="dialog" showClass="dialog2Shown" hideClass="dialog2Hidden">
+		<h2>Dialog 2</h2>
+			I'm dizzy.
+		</div><br><br>
+		<button onclick="toggleDialog2()">OK</button>
+	</g-overlay>
+	<script>
+		toggleDialog = function() {
+			document.querySelector("#dialog").toggleShowing();
+		}
+		toggleDialog2 = function() {
+			document.querySelector("#dialog2").toggleShowing();
+		}
+	</script>
+</body>
+</html>