Remove outdated examples and framework pieces

sky/framework/sky-element/sky-element.sky

Index: sky/framework/sky-element/sky-element.sky
diff --git a/sky/framework/sky-element/sky-element.sky b/sky/framework/sky-element/sky-element.sky
deleted file mode 100644
index 07818bc21bb9183dd64cac621ad46106b523294a..0000000000000000000000000000000000000000
--- a/sky/framework/sky-element/sky-element.sky
+++ /dev/null
@@ -1,195 +0,0 @@
-<!--
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
--->
-<import src="sky-binder.sky" as="binder" />
-<import src="element-registry.sky" as="registry" />
-<script>
-function parseAttributeSpec(registration, definition) {
-  var spec = definition.getAttribute('attributes');
-
-  if (!spec)
-    return;
-
-  var attributeTokens = spec.split(',');
-
-  for (var i = 0; i < attributeTokens.length; ++i) {
-    var parts = attributeTokens[i].split(':');
-
-    if (parts.length != 2) {
-      console.error('Invalid attribute spec "' + spec + '", attributes must' +
-          ' be {name}:{type}, where type is one of  boolean, number or' +
-          ' string.');
-      continue;
-    }
-
-    var name = parts[0].trim();
-    var type = parts[1].trim();
-
-    registration.defineAttribute(name, type);
-  }
-}
-
-function parseEventHandlers(registration, definition) {
-  var eventHandlers = [];
-  var attributes = definition.getAttributes();
-
-  for (var i = 0; i < attributes.length; i++) {
-    var attr = attributes[i];
-    var name = attr.name;
-    var value = attr.value;
-
-    if (name.startsWith('on-')) {
-      registration.eventHandlers.set(name.substring(3), value);
-    }
-  }
-}
-
-class SkyElement extends HTMLElement {
-
-  static register() {
-    var definition = document.currentScript.parentNode;
-
-    if (definition.localName !== 'sky-element') {
-      throw new Error('register() calls must be inside a <sky-element>.');
-    }
-
-    var tagName = definition.getAttribute('name');
-    if (!tagName) {
-      throw new Error('<sky-element> must have a name.');
-    }
-
-    var registration = registry.registerElement(tagName);
-
-    parseAttributeSpec(registration, definition);
-    parseEventHandlers(registration, definition);
-
-    registration.template = definition.querySelector('template');
-
-    registration.synthesizeAttributes(this.prototype);
-
-    return document.registerElement(tagName, {
-      prototype: this.prototype,
-    });
-  }
-
-  created() {
-    // override
-  }
-
-  attached() {
-    // override
-  }
-
-  detached() {
-    // override
-  }
-
-  attributeChanged(attrName, oldValue, newValue) {
-    // override
-  }
-
-  shadowRootReady() {
-    // override
-  }
-
-  createdCallback() {
-    this.isAttached = false;
-    this.propertyBindings = null;
-    this.dirtyPropertyBindings = null;
-    this.created();
-
-    Object.preventExtensions(this);
-
-    // Invoke attributeChanged callback when element is first created too.
-    var attributes = this.getAttributes();
-    for (var i = 0; i < attributes.length; ++i) {
-      var attribute = attributes[i];
-      this.attributeChangedCallback(attribute.name, null, attribute.value);
-    }
-
-    var registration = registry.getRegistration(this.localName);
-    registration.addInstanceEventListeners(this);
-  }
-
-  attachedCallback() {
-    if (!this.shadowRoot) {
-      var registration = registry.getRegistration(this.localName);
-      if (registration.template) {
-        var shadow = this.ensureShadowRoot();
-        var instance = binder.createInstance(registration.template, this);
-        shadow.appendChild(instance.fragment);
-        this.shadowRootReady();
-      }
-    }
-    this.attached();
-    this.isAttached = true;
-  }
-
-  detachedCallback() {
-    this.detached();
-    this.isAttached = false;
-  }
-
-  attributeChangedCallback(name, oldValue, newValue) {
-    if (registry.isExpandableAttribute(name))
-      return;
-    this.attributeChanged(name, oldValue, newValue);
-    var registration = registry.getRegistration(this.localName);
-    var converter = registration.attributes.get(name);
-    if (converter) {
-      this.notifyPropertyChanged(name, converter(oldValue),
-          converter(newValue));
-    }
-  }
-
-  notifyPropertyChanged(name, oldValue, newValue) {
-    if (oldValue == newValue)
-      return;
-    var notifier = Object.getNotifier(this);
-    notifier.notify({
-      type: 'update',
-      name: name,
-      oldValue: oldValue,
-    });
-    var handler = this[name + 'Changed'];
-    if (typeof handler == 'function')
-      handler.call(this, oldValue, newValue);
-    this.schedulePropertyBindingUpdate(name);
-  }
-
-  addPropertyBinding(name, binding) {
-    if (!this.propertyBindings)
-      this.propertyBindings = new Map();
-    this.propertyBindings.set(name, binding);
-  }
-
-  getPropertyBinding(name) {
-    if (!this.propertyBindings)
-      return null;
-    return this.propertyBindings.get(name);
-  }
-
-  schedulePropertyBindingUpdate(name) {
-    if (!this.dirtyPropertyBindings) {
-      this.dirtyPropertyBindings = new Set();
-      Promise.resolve().then(this.updatePropertyBindings.bind(this));
-    }
-    this.dirtyPropertyBindings.add(name);
-  }
-
-  updatePropertyBindings() {
-    for (var name of this.dirtyPropertyBindings) {
-      var binding = this.getPropertyBinding(name);
-      if (binding) {
-        binding.setValue(this[name]);
-        binding.discardChanges();
-      }
-    }
-    this.dirtyPropertyBindings = null;
-  }
-};
-
-module.exports = SkyElement;
-</script>