terry@google.com
91dd628bd8
Need unique name for library collision with template parser. Few more changes to work under VM. More changes for lang.dart seperation. Seperation from lang.dart (tokenizer can't access private fields of base class in another library). This was allowed in frog but not in the VM. VM is right so need to sever dependency. BUG= TEST= Review URL: https://chromiumcodereview.appspot.com//9695048 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@5544 260f80e4-7a28-3924-810f-c04153c831b5
93 lines
3.4 KiB
Dart
93 lines
3.4 KiB
Dart
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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class Generate {
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// Build up list of all known class selectors in all CSS files.
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static List<String> computeClassSelectors(RuleSet ruleset, classes) {
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for (final selector in ruleset.selectorGroup.selectors) {
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var selSeqs = selector.simpleSelectorSequences;
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for (final selSeq in selSeqs) {
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var simpleSelector = selSeq.simpleSelector;
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if (simpleSelector is ClassSelector) {
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String className = simpleSelector.name;
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if (classes.indexOf(className) == -1) { // Class name already known?
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// No, expose it.
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classes.add(className);
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}
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}
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}
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}
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return classes;
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}
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static dartClass(var files, String outPath, Stylesheet stylesheet,
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String filename) {
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List<String> knownClasses = [];
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StringBuffer buff = new StringBuffer(
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'// File generated by Dart CSS from source file ${filename}\n' +
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'// Do not edit.\n\n');
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// Emit class for any @stylet directive.
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for (final production in stylesheet._topLevels) {
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if (production is Directive) {
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if (production is StyletDirective) {
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// TODO(terry): Need safer mechanism for stylets in different files
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// and stylets with colliding names.
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buff.add('class ${production.dartClassName} {\n');
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buff.add(' // selector, properties<propertyName, value>\n');
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buff.add(' static final selectors = const {\n');
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for (final ruleset in production.rulesets) {
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for (final selector in ruleset.selectorGroup.selectors) {
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var selSeq = selector.simpleSelectorSquences;
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if (selSeq.length == 1) {
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buff.add(' \'${selSeq.toString()}\' : const {\n');
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}
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}
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for (final decl in ruleset.declarationGroup.declarations) {
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buff.add(' \'${decl.property}\' : ' +
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'\'${decl.expression.toString()}\',\n');
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}
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buff.add(' },\n'); // End of declarations for stylet class.
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}
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buff.add(' };\n'); // End of static selectors constant.
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buff.add('}\n\n'); // End of stylet class
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} else if (production is IncludeDirective) {
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for (final topLevel in production.styleSheet._topLevels) {
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if (topLevel is RuleSet) {
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knownClasses = computeClassSelectors(topLevel, knownClasses);
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}
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}
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}
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} else if (production is RuleSet) {
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knownClasses = computeClassSelectors(production, knownClasses);
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}
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}
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// Generate all known classes encountered in all processed CSS files.
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StringBuffer classSelectors = new StringBuffer(
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'class CSS {\n' +
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' // CSS class selectors:\n');
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for (final className in knownClasses) {
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String classAsDart = className.replaceAll('-', '_').toUpperCase();
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classSelectors.add(' static final String ${classAsDart} = ' +
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'\'${className}\';\n');
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}
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classSelectors.add('}\n'); // End of class selectors.
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buff.add(classSelectors.toString());
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// Write Dart file.
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String outFile = '${outPath}CSS.dart';
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files.writeString(outFile, buff.toString());
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return outFile;
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}
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}
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