Index: pkg/template_binding/lib/src/node_binding.dart |
diff --git a/pkg/template_binding/lib/src/node_binding.dart b/pkg/template_binding/lib/src/node_binding.dart |
deleted file mode 100644 |
index 95c5e00dd5ee999e2fca097f21cc17171252498a..0000000000000000000000000000000000000000 |
--- a/pkg/template_binding/lib/src/node_binding.dart |
+++ /dev/null |
@@ -1,92 +0,0 @@ |
-// 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. |
- |
-library template_binding.src.node_binding; |
- |
-import 'dart:async' show StreamSubscription; |
-import 'dart:html' show Node; |
-import 'package:observe/observe.dart' show PathObserver, CompoundPathObserver; |
- |
-/** Test only method. Not re-exported. */ |
-getObserverForTest(NodeBinding binding) => binding._observer; |
- |
-/** |
- * A data binding on a [Node]. |
- * See [NodeBindExtension.bindings] and [NodeBindExtension.bind]. |
- */ |
-abstract class NodeBinding { |
- Node _node; |
- var _model; |
- |
- // TODO(jmesserly): need common interface for PathObserver, |
- // CompoundPathObserver. |
- var _observer; |
- StreamSubscription _pathSub; |
- |
- /** The property of [node] which will be data bound. */ |
- final String property; |
- |
- /** The property of [node] which will be data bound. */ |
- final String path; |
- |
- /** The node that has [property] which will be data bound. */ |
- Node get node => _node; |
- |
- /** The bound data model. */ |
- get model => _model; |
- |
- /** True if this binding has been [closed]. */ |
- bool get closed => _node == null; |
- |
- /** The value at the [path] on [model]. */ |
- get value => _observer.value; |
- |
- set value(newValue) { |
- _observer.value = newValue; |
- } |
- |
- NodeBinding(this._node, this.property, this._model, [String path]) |
- : path = path != null ? path : '' { |
- |
- // Fast path if we're observing "value" |
- if ((model is PathObserver || model is CompoundPathObserver) && |
- path == 'value') { |
- |
- _observer = model; |
- } else { |
- // Create the path observer |
- _observer = new PathObserver(model, this.path); |
- } |
- |
- _pathSub = _observer.changes.listen((r) => valueChanged(value)); |
- valueChanged(value); |
- } |
- |
- /** Called when [value] changes to update the [node]. */ |
- // TODO(jmesserly): the impl in template_binding uses reflection to set the |
- // property, but that isn't used except for specific known fields like |
- // "textContent", so I'm overridding this in the subclasses instead. |
- void valueChanged(newValue); |
- |
- /** Called to sanitize the value before it is assigned into the property. */ |
- sanitizeBoundValue(value) => value == null ? '' : '$value'; |
- |
- /** |
- * Called by [NodeBindExtension.unbind] to close this binding and unobserve |
- * the [path]. |
- * |
- * This can be overridden in subclasses, but they must call `super.close()` |
- * to free associated resources. They must also check [closed] and return |
- * immediately if already closed. |
- */ |
- void close() { |
- if (closed) return; |
- |
- if (_pathSub != null) _pathSub.cancel(); |
- _pathSub = null; |
- _observer = null; |
- _node = null; |
- _model = null; |
- } |
-} |