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/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
test("dirtied", () => {
const root = Yoga.Node.create();
root.setAlignItems(Yoga.ALIGN_FLEX_START);
root.setWidth(100);
root.setHeight(100);
root.calculateLayout(undefined, undefined, Yoga.DIRECTION_LTR);
let dirtied = 0;
root.setDirtiedFunc(() => {
dirtied++;
});
// only nodes with a measure function can be marked dirty
root.setMeasureFunc(() => {});
expect(dirtied).toBe(0);
// dirtied func MUST be called in case of explicit dirtying.
root.markDirty();
expect(dirtied).toBe(1);
// dirtied func MUST be called ONCE.
root.markDirty();
expect(dirtied).toBe(1);
root.freeRecursive();
});
test("dirtied_propagation", () => {
const root = Yoga.Node.create();
root.setAlignItems(Yoga.ALIGN_FLEX_START);
root.setWidth(100);
root.setHeight(100);
const root_child0 = Yoga.Node.create();
root_child0.setAlignItems(Yoga.ALIGN_FLEX_START);
root_child0.setWidth(50);
root_child0.setHeight(20);
root_child0.setMeasureFunc(() => {});
root.insertChild(root_child0, 0);
const root_child1 = Yoga.Node.create();
root_child1.setAlignItems(Yoga.ALIGN_FLEX_START);
root_child1.setWidth(50);
root_child1.setHeight(20);
root.insertChild(root_child1, 0);
root.calculateLayout(undefined, undefined, Yoga.DIRECTION_LTR);
let dirtied = 0;
root.setDirtiedFunc(() => {
dirtied++;
});
expect(dirtied).toBe(0);
// dirtied func MUST be called for the first time.
root_child0.markDirty();
expect(dirtied).toBe(1);
// dirtied func must NOT be called for the second time.
root_child0.markDirty();
expect(dirtied).toBe(1);
root.freeRecursive();
});
test("dirtied_hierarchy", () => {
const root = Yoga.Node.create();
root.setAlignItems(Yoga.ALIGN_FLEX_START);
root.setWidth(100);
root.setHeight(100);
const root_child0 = Yoga.Node.create();
root_child0.setAlignItems(Yoga.ALIGN_FLEX_START);
root_child0.setWidth(50);
root_child0.setHeight(20);
root_child0.setMeasureFunc(() => {});
root.insertChild(root_child0, 0);
const root_child1 = Yoga.Node.create();
root_child1.setAlignItems(Yoga.ALIGN_FLEX_START);
root_child1.setWidth(50);
root_child1.setHeight(20);
root_child1.setMeasureFunc(() => {});
root.insertChild(root_child1, 0);
root.calculateLayout(undefined, undefined, Yoga.DIRECTION_LTR);
let dirtied = 0;
root_child0.setDirtiedFunc(() => {
dirtied++;
});
expect(dirtied).toBe(0);
// dirtied func must NOT be called for descendants.
// NOTE: nodes without a measure function cannot be marked dirty manually,
// but nodes with a measure function can not have children.
// Update the width to dirty the node instead.
root.setWidth(110);
expect(dirtied).toBe(0);
// dirtied func MUST be called in case of explicit dirtying.
root_child0.markDirty();
expect(dirtied).toBe(1);
root.freeRecursive();
});
test("dirtied_reset", () => {
const root = Yoga.Node.create();
root.setAlignItems(Yoga.ALIGN_FLEX_START);
root.setWidth(100);
root.setHeight(100);
root.setMeasureFunc(() => {});
root.calculateLayout(undefined, undefined, Yoga.DIRECTION_LTR);
let dirtied = 0;
root.setDirtiedFunc(() => {
dirtied++;
});
expect(dirtied).toBe(0);
// dirtied func MUST be called in case of explicit dirtying.
root.markDirty();
expect(dirtied).toBe(1);
// recalculate so the root is no longer dirty
root.calculateLayout(undefined, undefined, Yoga.DIRECTION_LTR);
root.reset();
root.setAlignItems(Yoga.ALIGN_FLEX_START);
root.setWidth(100);
root.setHeight(100);
root.setMeasureFunc(() => {});
root.markDirty();
// dirtied func must NOT be called after reset.
root.markDirty();
expect(dirtied).toBe(1);
root.freeRecursive();
});
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