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Unified Diff: pkg/template_binding/lib/src/instance_binding_map.dart

Issue 50203004: port TemplateBinding to ed3266266e751b5ab1f75f8e0509d0d5f0ef35d8 (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 7 years, 2 months ago
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Index: pkg/template_binding/lib/src/instance_binding_map.dart
diff --git a/pkg/template_binding/lib/src/instance_binding_map.dart b/pkg/template_binding/lib/src/instance_binding_map.dart
new file mode 100644
index 0000000000000000000000000000000000000000..3868343c8aa675007f74fab14687cb4cd3966676
--- /dev/null
+++ b/pkg/template_binding/lib/src/instance_binding_map.dart
@@ -0,0 +1,66 @@
+// Copyright (c) 2013, 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.
+
+part of template_binding;
+
+class _InstanceBindingMap {
+ final List bindings;
+ final List<_InstanceBindingMap> children;
+ final Node templateRef;
+ final bool hasSubTemplate;
+
+ _InstanceBindingMap._(this.bindings, this.children, this.templateRef,
+ this.hasSubTemplate);
+
+ factory _InstanceBindingMap(Node node, BindingDelegate delegate) {
+ var bindings = _getBindings(node, delegate);
+
+ bool hasSubTemplate = false;
+ Node templateRef = null;
+
+ if (isSemanticTemplate(node)) {
+ templateRef = node;
+ hasSubTemplate = true;
+ }
+
+ List children = null;
+ for (var c = node.firstChild, i = 0; c != null; c = c.nextNode, i++) {
+ var childMap = new _InstanceBindingMap(c, delegate);
+ if (childMap == null) continue;
+
+ if (children == null) children = new List(node.nodes.length);
+ children[i] = childMap;
+ if (childMap.hasSubTemplate) {
+ hasSubTemplate = true;
+ }
+ }
+
+ return new _InstanceBindingMap._(bindings, children, templateRef,
+ hasSubTemplate);
+ }
+}
+
+
+void _addMapBindings(Node node, _InstanceBindingMap map, model,
+ BindingDelegate delegate, List bound) {
+ if (map == null) return;
+
+ if (map.templateRef != null) {
+ TemplateBindExtension.decorate(node, map.templateRef);
+ if (delegate != null) {
+ templateBindFallback(node)._bindingDelegate = delegate;
+ }
+ }
+
+ if (map.bindings != null) {
+ _processBindings(map.bindings, node, model, bound);
+ }
+
+ if (map.children == null) return;
+
+ int i = 0;
+ for (var c = node.firstChild; c != null; c = c.nextNode) {
+ _addMapBindings(c, map.children[i++], model, delegate, bound);
+ }
+}
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