Examples with StateNode com.vaadin.client.flow.StateNode used on opensource projects

Example 66 with StateNode

use of com.vaadin.client.flow.StateNode in project flow by vaadin.

the class SimpleElementBindingStrategy method getClosestStateNodeIdToEventTarget.

// This method could be moved somewhere to be reusable
private int getClosestStateNodeIdToEventTarget(StateNode topNode, EventTarget target) {
    if (target == null) {
        return -1;
    }
    try {
        DomNode targetNode = DomApi.wrap(WidgetUtil.crazyJsCast(target));
        JsArray<StateNode> stack = JsCollections.array();
        stack.push(topNode);
        // collect children and test eagerly for direct match
        for (int i = 0; i < stack.length(); i++) {
            final StateNode stateNode = stack.get(i);
            if (targetNode.isSameNode(stateNode.getDomNode())) {
                return stateNode.getId();
            }
            // NOTE: for now not looking at virtual children on purpose.
            // If needed (?), those can be included here to the search stack
            stateNode.getList(NodeFeatures.ELEMENT_CHILDREN).forEach(child -> stack.push((StateNode) child));
        }
        // no direct match, all child element state nodes collected.
        // bottom-up search elements until matching state node found
        targetNode = DomApi.wrap(targetNode.getParentNode());
        return getStateNodeForElement(stack, targetNode);
    } catch (Exception e) {
        // not going to let event handling fail; just report nothing found
        Console.debug("An error occurred when Flow tried to find a state node matching the element " + target + ", which was the event.target. Error: " + e.getMessage());
    }
    // no match / error;
    return -1;
}

Example 67 with StateNode

use of com.vaadin.client.flow.StateNode in project flow by vaadin.

the class GwtExecuteJavaScriptElementUtilsTest method addChild.

private StateNode addChild(Element child, int index) {
    StateNode childNode = new StateNode(nextId, tree);
    nextId++;
    childNode.setDomNode(child);
    node.getList(NodeFeatures.ELEMENT_CHILDREN).add(index, childNode);
    return childNode;
}

Example 68 with StateNode

use of com.vaadin.client.flow.StateNode in project flow by vaadin.

the class GwtExecuteJavaScriptElementUtilsTest method setupShadowRoot.

private void setupShadowRoot() {
    setupParent(element);
    NodeMap map = node.getMap(NodeFeatures.SHADOW_ROOT_DATA);
    map.getProperty(NodeProperties.SHADOW_ROOT).setValue(new StateNode(34, tree));
}

Example 69 with StateNode

use of com.vaadin.client.flow.StateNode in project flow by vaadin.

the class SimpleElementBindingStrategy method doBind.

private void doBind(StateNode node, BinderContext nodeFactory) {
    Node domNode = node.getDomNode();
    // this will fire an event which gives a chance to run logic which
    // needs to know when the element is completely initialized
    node.setDomNode(null);
    node.setDomNode(domNode);
    nodeFactory.createAndBind(node);
}

Example 70 with StateNode

use of com.vaadin.client.flow.StateNode in project flow by vaadin.

the class SimpleElementBindingStrategy method handlePropertyChange.

private void handlePropertyChange(String fullPropertyName, Supplier<Object> valueProvider, StateNode node) {
    UpdatableModelProperties updatableProperties = node.getNodeData(UpdatableModelProperties.class);
    if (updatableProperties == null || !updatableProperties.isUpdatableProperty(fullPropertyName)) {
        // collection of updatable properties
        return;
    }
    // This is not the property value itself, its a parent node of the
    // property
    String[] subProperties = fullPropertyName.split("\\.");
    StateNode model = node;
    MapProperty mapProperty = null;
    int i = 0;
    int size = subProperties.length;
    for (String subProperty : subProperties) {
        NodeMap elementProperties = model.getMap(NodeFeatures.ELEMENT_PROPERTIES);
        if (!elementProperties.hasPropertyValue(subProperty) && i < size - 1) {
            Console.debug("Ignoring property change for property '" + fullPropertyName + "' which isn't defined from server");
            return;
        }
        mapProperty = elementProperties.getProperty(subProperty);
        if (mapProperty.getValue() instanceof StateNode) {
            model = (StateNode) mapProperty.getValue();
        }
        i++;
    }
    if (mapProperty.getValue() instanceof StateNode) {
        // Don't send to the server updates for list nodes
        StateNode nodeValue = (StateNode) mapProperty.getValue();
        JsonObject obj = WidgetUtil.crazyJsCast(valueProvider.get());
        if (!obj.hasKey("nodeId") || nodeValue.hasFeature(NodeFeatures.TEMPLATE_MODELLIST)) {
            return;
        }
    }
    mapProperty.syncToServer(valueProvider.get());
}