pkg/polymer/lib/src/loader.dart - Issue 558673004: update polymer js to 0.4.0

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Issue 558673004: update polymer js to 0.4.0 (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart

Patch Set: review updates Created 6 years, 3 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 polymer;	5 part of polymer;

6	6

7 /// Annotation used to automatically register polymer elements.	7 /// Annotation used to automatically register polymer elements.

8 class CustomTag {	8 class CustomTag {

9 final String tagName;	9 final String tagName;

10 const CustomTag(this.tagName);	10 const CustomTag(this.tagName);

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80 }	80 }

81	81

82 /// To ensure Dart can interoperate with polymer-element registered by	82 /// To ensure Dart can interoperate with polymer-element registered by

83 /// polymer.js, we need to be able to execute Dart code if we are registering	83 /// polymer.js, we need to be able to execute Dart code if we are registering

84 /// a Dart class for that element. We trigger Dart logic by patching	84 /// a Dart class for that element. We trigger Dart logic by patching

85 /// polymer-element's register function and:	85 /// polymer-element's register function and:

86 ///	86 ///

87 /// * if it has a Dart class, run PolymerDeclaration's register.	87 /// * if it has a Dart class, run PolymerDeclaration's register.

88 /// * otherwise it is a JS prototype, run polymer-element's normal register.	88 /// * otherwise it is a JS prototype, run polymer-element's normal register.

89 void _hookJsPolymer() {	89 void _hookJsPolymer() {

90 // Note: platform.js is not used directly here, but we check that it is loaded

91 // to provide a good error message in Dartium if people forgot to include it.

92 // Otherwise, polymer.js below will fail with a hard to understand error

93 // message.

94 var platform = js.context['Platform'];

95 if (platform == null) {

96 throw new StateError('platform.js, dart_support.js must be loaded at'

97 ' the top of your application, before any other scripts or HTML'

98 ' imports that use polymer. Putting these two script tags at the top of'

99 ' your <head> element should address this issue:'

100 ' <script src="packages/web_components/platform.js"></script> and '

101 ' <script src="packages/web_components/dart_support.js"></script>.');

102 }

103 var polymerJs = js.context['Polymer'];	90 var polymerJs = js.context['Polymer'];

104 if (polymerJs == null) {	91 if (polymerJs == null) {

105 throw new StateError('polymer.js must be loaded before polymer.dart, please'	92 throw new StateError('polymer.js must be loaded before polymer.dart, please'

106 ' add <link rel="import" href="packages/polymer/polymer.html"> to your'	93 ' add <link rel="import" href="packages/polymer/polymer.html"> to your'

107 ' <head> before any Dart scripts. Alternatively you can get a different'	94 ' <head> before any Dart scripts. Alternatively you can get a different'

108 ' version of polymer.js by following the instructions at'	95 ' version of polymer.js by following the instructions at'

109 ' http://www.polymer-project.org.');	96 ' http://www.polymer-project.org.');

110 }	97 }

111	98

112 // TODO(jmesserly): dart:js appears to not callback in the correct zone:	99 // TODO(jmesserly): dart:js appears to not callback in the correct zone:

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148 return proto;	135 return proto;

149 }();	136 }();

150	137

151 // Add support for the polymer js style of enabling logging. The global logging	138 // Add support for the polymer js style of enabling logging. The global logging

152 // level is respected for specified loggers (see http://goo.gl/btfDe1). All	139 // level is respected for specified loggers (see http://goo.gl/btfDe1). All

153 // other loggers will be set to [Level.OFF]. Logs will also be printed to the	140 // other loggers will be set to [Level.OFF]. Logs will also be printed to the

154 // console automatically if any are supplied.	141 // console automatically if any are supplied.

155 void _initializeLogging() {	142 void _initializeLogging() {

156 hierarchicalLoggingEnabled = true;	143 hierarchicalLoggingEnabled = true;

157 var logFlags = js.context['logFlags'];	144 var logFlags = js.context['logFlags'];

	145 if (logFlags == null) logFlags = {};

158 var loggers =	146 var loggers =

159 [_observeLog, _eventsLog, _unbindLog, _bindLog, _watchLog, _readyLog];	147 [_observeLog, _eventsLog, _unbindLog, _bindLog, _watchLog, _readyLog];

160 var polymerLogger = new Logger('polymer');	148 var polymerLogger = new Logger('polymer');

161	149

162 // If no loggers specified then disable globally and return.	150 // If no loggers specified then disable globally and return.

163 if (!loggers.any((logger) => logFlags[logger.name] == true)) {	151 if (!loggers.any((logger) => logFlags[logger.name] == true)) {

164 polymerLogger.level = Level.OFF;	152 polymerLogger.level = Level.OFF;

165 return;	153 return;

166 }	154 }

167	155

168 // Disable the loggers that were not specified.	156 // Disable the loggers that were not specified.

169 loggers.where((logger) => logFlags[logger.name] != true)	157 loggers.where((logger) => logFlags[logger.name] != true)

170 .forEach((logger) {logger.level = Level.OFF;});	158 .forEach((logger) {logger.level = Level.OFF;});

171	159

172 // Listen to the polymer logs and print them to the console.	160 // Listen to the polymer logs and print them to the console.

173 polymerLogger.onRecord.listen((rec) {print(rec);});	161 polymerLogger.onRecord.listen((rec) {print(rec);});

174 }	162 }

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