Index: runtime/bin/vmservice/observatory/deployed/web/packages/web_components/interop_support.js |
diff --git a/runtime/bin/vmservice/observatory/deployed/web/packages/web_components/interop_support.js b/runtime/bin/vmservice/observatory/deployed/web/packages/web_components/interop_support.js |
deleted file mode 100644 |
index 790f8284bdbe5158035eb755bc2911eebca40770..0000000000000000000000000000000000000000 |
--- a/runtime/bin/vmservice/observatory/deployed/web/packages/web_components/interop_support.js |
+++ /dev/null |
@@ -1,126 +0,0 @@ |
-// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
-// for details. All rights reserved. Use of this source code is governed by a |
-// BSD-style license that can be found in the LICENSE file. |
- |
-// Updates document.registerElement so Dart can see when Javascript custom |
-// elements are created, and wrap them to provide a Dart friendly API. |
-(function (doc) { |
- if (window._dart_register_element_interop_support) return; |
- window._dart_register_element_interop_support = true; |
- |
- var upgraders = {}; // upgrader associated with a custom-tag. |
- var unpatchableTags = {}; // set of custom-tags that can't be patched. |
- var pendingElements = {}; // will upgrade when/if an upgrader is installed. |
- var upgradeOldElements = true; |
- |
- var originalRegisterElement = doc.registerElement; |
- if (!originalRegisterElement) { |
- throw new Error('document.registerElement is not present.'); |
- } |
- |
- function reportError(name) { |
- console.error("Couldn't patch prototype to notify Dart when " + name + |
- " elements are created. This can be fixed by making the " + |
- "createdCallback in " + name + " a configurable property."); |
- } |
- |
- function registerElement(name, options) { |
- var proto, extendsOption; |
- if (options !== undefined) { |
- proto = options.prototype; |
- } else { |
- proto = Object.create(HTMLElement.prototype); |
- options = {protoptype: proto}; |
- } |
- |
- var original = proto.createdCallback; |
- var newCallback = function() { |
- original.call(this); |
- var name = (this.getAttribute('is') || this.localName).toLowerCase(); |
- var upgrader = upgraders[name]; |
- if (upgrader) { |
- upgrader(this); |
- } else if (upgradeOldElements) { |
- // Save this element in case we can upgrade it later when an upgrader is |
- // registered. |
- var list = pendingElements[name]; |
- if (!list) { |
- list = pendingElements[name] = []; |
- } |
- list.push(this); |
- } |
- }; |
- |
- var descriptor = Object.getOwnPropertyDescriptor(proto, 'createdCallback'); |
- if (!descriptor || descriptor.writable) { |
- proto.createdCallback = newCallback; |
- } else if (descriptor.configurable) { |
- descriptor['value'] = newCallback; |
- Object.defineProperty(proto, 'createdCallback', descriptor); |
- } else { |
- unpatchableTags[name] = true; |
- if (upgraders[name]) reportError(name); |
- } |
- return originalRegisterElement.call(this, name, options); |
- } |
- |
- function registerDartTypeUpgrader(name, upgrader) { |
- if (!upgrader) return; |
- name = name.toLowerCase(); |
- var existing = upgraders[name]; |
- if (existing) { |
- console.error('Already have a Dart type associated with ' + name); |
- return; |
- } |
- upgraders[name] = upgrader; |
- if (unpatchableTags[name]) reportError(name); |
- if (upgradeOldElements) { |
- // Upgrade elements that were created before the upgrader was registered. |
- var list = pendingElements[name]; |
- if (list) { |
- for (var i = 0; i < list.length; i++) { |
- upgrader(list[i]); |
- } |
- } |
- delete pendingElements[name]; |
- } else { |
- console.warn("Didn't expect more Dart types to be registered. '" + name |
- + "' elements that already exist in the page might not be wrapped."); |
- } |
- } |
- |
- function onlyUpgradeNewElements() { |
- upgradeOldElements = false; |
- pendingElements = null; |
- } |
- |
- // Native custom elements outside the app in Chrome have constructor |
- // names like "x-tag", which need to be translated to the DOM |
- // element they extend. When using the shadow dom polyfill this is |
- // taken care of in dart_support.js. |
- var ShadowDOMPolyfill = window.ShadowDOMPolyfill; |
- if (!ShadowDOMPolyfill) { |
- // dartNativeDispatchHooksTransformer is described on initHooks() in |
- // sdk/lib/_internal/lib/native_helper.dart. |
- if (typeof window.dartNativeDispatchHooksTransformer == 'undefined') |
- window.dartNativeDispatchHooksTransformer = []; |
- |
- window.dartNativeDispatchHooksTransformer.push(function(hooks) { |
- var originalGetUnknownTag = hooks.getUnknownTag; |
- hooks.getUnknownTag = function(o, tag) { |
- if (/-/.test(tag)) { // "x-tag" |
- var s = Object.prototype.toString.call(o); |
- var match = s.match(/^\[object ([A-Za-z]*Element)\]$/); |
- if (match) { |
- return match[1]; |
- } |
- return originalGetUnknownTag(o, tag); |
- } |
- }; |
- }); |
- } |
- |
- doc._registerDartTypeUpgrader = registerDartTypeUpgrader; |
- doc._onlyUpgradeNewElements = onlyUpgradeNewElements; |
- doc.registerElement = registerElement; |
-})(document); |