89 lines
2.5 KiB
JavaScript
89 lines
2.5 KiB
JavaScript
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// Constant to identify a React Component. It's been extracted from ReactTypeOfWork
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// (https://github.com/facebook/react/blob/master/src/shared/ReactTypeOfWork.js#L20)
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const ReactClassComponent = 2;
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function traverseRenderedChildren(internalInstance, callback, argument) {
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callback(internalInstance, argument);
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if (internalInstance._renderedComponent) {
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traverseRenderedChildren(
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internalInstance._renderedComponent,
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callback,
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argument
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);
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} else {
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for (let key in internalInstance._renderedChildren) {
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if (internalInstance._renderedChildren.hasOwnProperty(key)) {
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traverseRenderedChildren(
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internalInstance._renderedChildren[key],
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callback,
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argument
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);
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}
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}
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}
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}
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function setPendingForceUpdate(internalInstance) {
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if (internalInstance._pendingForceUpdate === false) {
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internalInstance._pendingForceUpdate = true;
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}
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}
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function forceUpdateIfPending(internalInstance, React) {
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if (internalInstance._pendingForceUpdate === true) {
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const publicInstance = internalInstance._instance;
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React.Component.prototype.forceUpdate.call(publicInstance);
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}
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}
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function deepForceUpdateStack(instance, React) {
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const internalInstance = instance._reactInternalInstance;
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traverseRenderedChildren(internalInstance, setPendingForceUpdate);
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traverseRenderedChildren(internalInstance, forceUpdateIfPending, React);
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}
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function deepForceUpdate(instance, React) {
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const root = instance._reactInternalFiber || instance._reactInternalInstance;
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if (typeof root.tag !== 'number') {
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// Traverse stack-based React tree.
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return deepForceUpdateStack(instance, React);
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}
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let node = root;
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while (true) {
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if (node.tag === ReactClassComponent) {
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const publicInstance = node.stateNode;
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const { updater } = publicInstance;
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if (typeof publicInstance.forceUpdate === 'function') {
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publicInstance.forceUpdate();
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} else if (updater && typeof updater.enqueueForceUpdate === 'function') {
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updater.enqueueForceUpdate(publicInstance);
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}
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}
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if (node.child) {
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node.child.return = node;
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node = node.child;
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continue;
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}
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if (node === root) {
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return undefined;
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}
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while (!node.sibling) {
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if (!node.return || node.return === root) {
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return undefined;
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}
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node = node.return;
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}
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node.sibling.return = node.return;
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node = node.sibling;
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}
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}
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export default function getForceUpdate(React) {
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return instance => {
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deepForceUpdate(instance, React);
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};
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}
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