32 lines
919 B
Plaintext
32 lines
919 B
Plaintext
const windowCallbacks = new Set();
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let windowResizeHandler;
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function createWindowResizeHandler() {
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windowResizeHandler = () => {
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const info = {
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get width() {
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return window.innerWidth;
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},
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get height() {
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return window.innerHeight;
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},
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};
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windowCallbacks.forEach((callback) => callback(info));
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};
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window.addEventListener("resize", windowResizeHandler);
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}
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function resizeWindow(callback) {
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windowCallbacks.add(callback);
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if (!windowResizeHandler)
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createWindowResizeHandler();
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return () => {
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windowCallbacks.delete(callback);
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if (!windowCallbacks.size &&
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typeof windowResizeHandler === "function") {
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window.removeEventListener("resize", windowResizeHandler);
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windowResizeHandler = undefined;
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}
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};
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}
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export { resizeWindow };
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