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Side by Side Diff: tools/dom/src/shared_html.dart

Issue 2120063002: Revert zone tasks. (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: Created 4 years, 5 months ago
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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 part of dart.dom.html; 5 part of dart.dom.html;
6 6
7 ZoneUnaryCallback/*<R, T>*/ _registerZone/*<R, T>*/(Zone zone, 7 // TODO(jacobr): remove these typedefs when dart:async supports generic types.
8 ZoneUnaryCallback/*<R, T>*/ callback) { 8 typedef R _wrapZoneCallback<A, R>(A a);
9 // For performance reasons avoid registering if we are in the root zone. 9 typedef R _wrapZoneBinaryCallback<A, B, R>(A a, B b);
10 if (identical(zone, Zone.ROOT)) return callback; 10
11 _wrapZoneCallback/*<A, R>*/ _wrapZone/*<A, R>*/(_wrapZoneCallback/*<A, R>*/ call back) {
12 // For performance reasons avoid wrapping if we are in the root zone.
13 if (Zone.current == Zone.ROOT) return callback;
11 if (callback == null) return null; 14 if (callback == null) return null;
12 return zone.registerUnaryCallback(callback); 15 // TODO(jacobr): we cast to _wrapZoneCallback/*<A, R>*/ to hack around missing
16 // generic method support in zones.
17 // ignore: STRONG_MODE_DOWN_CAST_COMPOSITE
18 _wrapZoneCallback/*<A, R>*/ wrapped =
19 Zone.current.bindUnaryCallback(callback, runGuarded: true);
20 return wrapped;
13 } 21 }
14 22
15 ZoneUnaryCallback/*<R, T>*/ _wrapZone/*<R, T>*/(ZoneUnaryCallback/*<R, T>*/ call back) { 23 _wrapZoneBinaryCallback/*<A, B, R>*/ _wrapBinaryZone/*<A, B, R>*/(_wrapZoneBinar yCallback/*<A, B, R>*/ callback) {
16 // For performance reasons avoid wrapping if we are in the root zone. 24 if (Zone.current == Zone.ROOT) return callback;
17 if (identical(Zone.current, Zone.ROOT)) return callback;
18 if (callback == null) return null; 25 if (callback == null) return null;
19 return Zone.current.bindUnaryCallback(callback, runGuarded: true); 26 // We cast to _wrapZoneBinaryCallback/*<A, B, R>*/ to hack around missing
20 } 27 // generic method support in zones.
21 28 // ignore: STRONG_MODE_DOWN_CAST_COMPOSITE
22 ZoneBinaryCallback/*<R, A, B>*/ _wrapBinaryZone/*<R, A, B>*/( 29 _wrapZoneBinaryCallback/*<A, B, R>*/ wrapped =
23 ZoneBinaryCallback/*<R, A, B>*/ callback) { 30 Zone.current.bindBinaryCallback(callback, runGuarded: true);
24 if (identical(Zone.current, Zone.ROOT)) return callback; 31 return wrapped;
25 if (callback == null) return null;
26 return Zone.current.bindBinaryCallback(callback, runGuarded: true);
27 } 32 }
28 33
29 /** 34 /**
30 * Alias for [querySelector]. Note this function is deprecated because its 35 * Alias for [querySelector]. Note this function is deprecated because its
31 * semantics will be changing in the future. 36 * semantics will be changing in the future.
32 */ 37 */
33 @deprecated 38 @deprecated
34 @Experimental() 39 @Experimental()
35 Element query(String relativeSelectors) => document.query(relativeSelectors); 40 Element query(String relativeSelectors) => document.query(relativeSelectors);
36 /** 41 /**
(...skipping 42 matching lines...) Expand 10 before | Expand all | Expand 10 after
79 ElementList<Element> querySelectorAll(String selectors) => document.querySelecto rAll(selectors); 84 ElementList<Element> querySelectorAll(String selectors) => document.querySelecto rAll(selectors);
80 85
81 /// A utility for changing the Dart wrapper type for elements. 86 /// A utility for changing the Dart wrapper type for elements.
82 abstract class ElementUpgrader { 87 abstract class ElementUpgrader {
83 /// Upgrade the specified element to be of the Dart type this was created for. 88 /// Upgrade the specified element to be of the Dart type this was created for.
84 /// 89 ///
85 /// After upgrading the element passed in is invalid and the returned value 90 /// After upgrading the element passed in is invalid and the returned value
86 /// should be used instead. 91 /// should be used instead.
87 Element upgrade(Element element); 92 Element upgrade(Element element);
88 } 93 }
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