| // Copyright (c) 2012, 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. |
| |
| class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC { |
| $!MEMBERS |
| void observe(Node target, |
| {Map options, |
| bool childList, |
| bool attributes, |
| bool characterData, |
| bool subtree, |
| bool attributeOldValue, |
| bool characterDataOldValue, |
| List<String> attributeFilter}) { |
| |
| // Parse options into map of known type. |
| var parsedOptions = _createDict(); |
| |
| if (options != null) { |
| options.forEach((k, v) { |
| if (_boolKeys.containsKey(k)) { |
| _add(parsedOptions, k, true == v); |
| } else if (k == 'attributeFilter') { |
| _add(parsedOptions, k, _fixupList(v)); |
| } else { |
| throw new ArgumentError( |
| "Illegal MutationObserver.observe option '$k'"); |
| } |
| }); |
| } |
| |
| // Override options passed in the map with named optional arguments. |
| override(key, value) { |
| if (value != null) _add(parsedOptions, key, value); |
| } |
| |
| override('childList', childList); |
| override('attributes', attributes); |
| override('characterData', characterData); |
| override('subtree', subtree); |
| override('attributeOldValue', attributeOldValue); |
| override('characterDataOldValue', characterDataOldValue); |
| if (attributeFilter != null) { |
| override('attributeFilter', _fixupList(attributeFilter)); |
| } |
| |
| _call(target, parsedOptions); |
| } |
| |
| // TODO: Change to a set when const Sets are available. |
| static final _boolKeys = |
| const {'childList': true, |
| 'attributes': true, |
| 'characterData': true, |
| 'subtree': true, |
| 'attributeOldValue': true, |
| 'characterDataOldValue': true }; |
| |
| $if DARTIUM |
| static _createDict() => {}; |
| static _add(m, String key, value) { m[key] = value; } |
| static _fixupList(list) => list; |
| |
| _call(Node target, options) { |
| _observe(target, options); |
| } |
| $endif |
| |
| $if DART2JS |
| static _createDict() => JS('var', '{}'); |
| static _add(m, String key, value) { JS('void', '#[#] = #', m, key, value); } |
| static _fixupList(list) => list; // TODO: Ensure is a JavaScript Array. |
| |
| // Call native function with no conversions. |
| _call(target, options) native 'observe'; |
| $endif |
| } |