+ /**
+ * Used in the function below to store references of clean-up functions.
+ * Used to ensure only one transitionend function exists at any time.
+ * @type {WeakMap<object, any>}
+ */
+ const animateStylesCleanupMap = new WeakMap();
+
/**
* Fade out the given element.
* @param {Element} element
* @param {Function|null} onComplete
*/
export function fadeOut(element, animTime = 400, onComplete = null) {
+ cleanupExistingElementAnimation(element);
animateStyles(element, {
opacity: ['1', '0']
}, animTime, () => {
* @param {Number} animTime
*/
export function slideUp(element, animTime = 400) {
+ cleanupExistingElementAnimation(element);
const currentHeight = element.getBoundingClientRect().height;
const computedStyles = getComputedStyle(element);
const currentPaddingTop = computedStyles.getPropertyValue('padding-top');
* @param {Number} animTime - Animation time in ms
*/
export function slideDown(element, animTime = 400) {
+ cleanupExistingElementAnimation(element);
element.style.display = 'block';
const targetHeight = element.getBoundingClientRect().height;
const computedStyles = getComputedStyle(element);
animateStyles(element, animStyles, animTime);
}
- /**
- * Used in the function below to store references of clean-up functions.
- * Used to ensure only one transitionend function exists at any time.
- * @type {WeakMap<object, any>}
- */
- const animateStylesCleanupMap = new WeakMap();
-
/**
* Animate the css styles of an element using FLIP animation techniques.
* Styles must be an object where the keys are style properties, camelcase, and the values
}
element.style.transition = null;
element.removeEventListener('transitionend', cleanup);
+ animateStylesCleanupMap.delete(element);
if (onComplete) onComplete();
};
setTimeout(() => {
- requestAnimationFrame(() => {
- element.style.transition = `all ease-in-out ${animTime}ms`;
- for (let style of styleNames) {
- element.style[style] = styles[style][1];
- }
+ element.style.transition = `all ease-in-out ${animTime}ms`;
+ for (let style of styleNames) {
+ element.style[style] = styles[style][1];
+ }
- if (animateStylesCleanupMap.has(element)) {
- const oldCleanup = animateStylesCleanupMap.get(element);
- element.removeEventListener('transitionend', oldCleanup);
- }
+ element.addEventListener('transitionend', cleanup);
+ animateStylesCleanupMap.set(element, cleanup);
+ }, 15);
+ }
- element.addEventListener('transitionend', cleanup);
- animateStylesCleanupMap.set(element, cleanup);
- });
- }, 10);
+ /**
+ * Run the active cleanup action for the given element.
+ * @param {Element} element
+ */
+ function cleanupExistingElementAnimation(element) {
+ if (animateStylesCleanupMap.has(element)) {
+ const oldCleanup = animateStylesCleanupMap.get(element);
+ oldCleanup();
+ }
}