[WIP]: feat: support initial CSS value.

webf/lib/src/css/computed_style_declaration.dart

@@ -564,6 +564,11 @@ class ComputedCSSStyleDeclaration extends CSSStyleDeclaration {
  final afterValue = afterSlashSeparator.map((e) => _valueForPropertyInStyle(e)).join(' ');
  return backgroundColor + ' ' + beforeValue + ' / ' + afterValue;
  }
+
+ @override
+ String toString() {
+ return 'ComputedCSSStyleDeclaration($_element)';
+ }
 }
 
 List<T>? _compressSlidesValue<T>(List<T> values) {

webf/lib/src/css/render_style.dart

@@ -441,6 +441,10 @@ class CSSRenderStyle extends RenderStyle
  dynamic resolveValue(String propertyName, String propertyValue, { String? baseHref }) {
  RenderStyle renderStyle = this;
 
+ if (propertyValue == INITIAL) {
+ propertyValue = CSSInitialValues[propertyName] ?? propertyValue;
+ }
+
  // Process CSSVariable.
  dynamic value = CSSVariable.tryParse(renderStyle, propertyValue);
  if (value != null) {

webf/lib/src/css/style_declaration.dart

@@ -322,6 +322,8 @@ class CSSStyleDeclaration extends BindingObject {
  // Eg. var(--x), calc(1 + 1)
  if (CSSFunction.isFunction(normalizedValue)) return true;
 
+ if (CSSLength.isInitial(normalizedValue)) return true;
+
  // Validate value.
  switch (propertyName) {
  case WIDTH:

webf/lib/src/css/values/length.dart

@@ -522,6 +522,10 @@ class CSSLength {
  return value == AUTO;
  }
 
+ static bool isInitial(String? value) {
+ return value == INITIAL;
+ }
+
  static bool isLength(String? value) {
  return value != null && (value == ZERO || _lengthRegExp.hasMatch(value));
  }

webf/lib/src/css/values/variable.dart

@@ -47,7 +47,11 @@ class CSSVariable {
 
  // Get the lazy calculated CSS resolved value.
  dynamic computedValue(String propertyName) {
- dynamic value = _renderStyle.getCSSVariable(identifier, propertyName) ?? defaultValue;
+ dynamic value = _renderStyle.getCSSVariable(identifier, propertyName);
+ if (value == null || value == INITIAL) {
+ value = defaultValue;
+ }
+
  if (value == null) {
  return null;
  }

webf/lib/src/devtools/modules/dom.dart

@@ -262,7 +262,9 @@ class InspectorNode extends JSONEncodable {
  'childNodeCount': childNodeCount,
  'attributes': attributes,
  if (childNodeCount > 0)
- 'children': referencedNode.childNodes.map((Node node) => InspectorNode(node).toJson()).toList(),
+ 'children': referencedNode.childNodes.where((node) {
+ return node is Element || (node is TextNode && node.data.isNotEmpty);
+ }).map((Node node) => InspectorNode(node).toJson()).toList(),
  };
  }
 }