inflate method

@override void inflate(BuildContext context)

Set this widget context, build it’s child, and render the widget, updating Context.element When overriding pay attention that inflate need to call build and render

Implementation

@override
void inflate(BuildContext context) {
  context.widget = this;

  final oldDomElements = context.domChildren ?? [];
  context.domChildren = [];
  final wasChildUsed = List.filled(oldDomElements.length, false);

  // context propagation to children
  if (children != null) {
    for (var i = 0; i < children!.length; i++) {
      final child = children![i];

      /// Try to find if we already have this widget in the dom
      var sameHashCodePos = -1;
      var sameRunTypePos = -1;

      for (var i = 0; i < oldDomElements.length; i++) {
        final context = oldDomElements[i];

        if (context.widget.hashCode == child.hashCode &&
            context.widget?.key == child.key &&
            !wasChildUsed[i]) {
          sameHashCodePos = i;
          break;
        }

        if (context.widget.runtimeType == child.runtimeType &&
            context.widget?.key == child.key &&
            !wasChildUsed[i] &&
            sameRunTypePos == -1) {
          sameRunTypePos = i;
        }
      }

      /// Was the element already created ?
      if (sameHashCodePos != -1 &&
          oldDomElements[i].element?.isConnected == true) {
        context.domChildren!.add(oldDomElements[i]);
        oldDomElements[i].parent = context;

        assert(oldDomElements[i].element?.isConnected == true);
        wasChildUsed[sameHashCodePos] = true;
      } else {
        BuildContext? target;

        if (sameRunTypePos != -1) {
          wasChildUsed[sameRunTypePos] = true;
          target = oldDomElements[sameRunTypePos];
        }

        final childContext = context.createChildContext(
            copyOldProperties: target != null, target: target);

        context.domChildren!.add(childContext);
        child.inflate(childContext);
      }
    }
  }

  render(context);
}