X-Git-Url: http://source.bookstackapp.com/bookstack/blobdiff_plain/ddb7f33868ea499ab8f48a7062f145e8c0fbe02f..refs/pull/5280/head:/resources/js/services/animations.js

diff --git a/resources/js/services/animations.js b/resources/js/services/animations.js
index b6158ea5f..bc983c807 100644
--- a/resources/js/services/animations.js
+++ b/resources/js/services/animations.js
@@ -5,6 +5,69 @@
  */
 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
+ * are an array of two items in the format [initialValue, finalValue]
+ * @param {Element} element
+ * @param {Object} styles
+ * @param {Number} animTime
+ * @param {Function} onComplete
+ */
+function animateStyles(element, styles, animTime = 400, onComplete = null) {
+    const styleNames = Object.keys(styles);
+    for (const style of styleNames) {
+        element.style[style] = styles[style][0];
+    }
+
+    const cleanup = () => {
+        for (const style of styleNames) {
+            element.style[style] = null;
+        }
+        element.style.transition = null;
+        element.removeEventListener('transitionend', cleanup);
+        animateStylesCleanupMap.delete(element);
+        if (onComplete) onComplete();
+    };
+
+    setTimeout(() => {
+        element.style.transition = `all ease-in-out ${animTime}ms`;
+        for (const style of styleNames) {
+            element.style[style] = styles[style][1];
+        }
+
+        element.addEventListener('transitionend', cleanup);
+        animateStylesCleanupMap.set(element, cleanup);
+    }, 15);
+}
+
+/**
+ * Run the active cleanup action for the given element.
+ * @param {Element} element
+ */
+function cleanupExistingElementAnimation(element) {
+    if (animateStylesCleanupMap.has(element)) {
+        const oldCleanup = animateStylesCleanupMap.get(element);
+        oldCleanup();
+    }
+}
+
+/**
+ * Fade in the given element.
+ * @param {Element} element
+ * @param {Number} animTime
+ * @param {Function|null} onComplete
+ */
+export function fadeIn(element, animTime = 400, onComplete = null) {
+    cleanupExistingElementAnimation(element);
+    element.style.display = 'block';
+    animateStyles(element, {
+        opacity: ['0', '1'],
+    }, animTime, () => {
+        if (onComplete) onComplete();
+    });
+}
+
 /**
  * Fade out the given element.
  * @param {Element} element
@@ -14,7 +77,7 @@ const animateStylesCleanupMap = new WeakMap();
 export function fadeOut(element, animTime = 400, onComplete = null) {
     cleanupExistingElementAnimation(element);
     animateStyles(element, {
-        opacity: ['1', '0']
+        opacity: ['1', '0'],
     }, animTime, () => {
         element.style.display = 'none';
         if (onComplete) onComplete();
@@ -33,7 +96,7 @@ export function slideUp(element, animTime = 400) {
     const currentPaddingTop = computedStyles.getPropertyValue('padding-top');
     const currentPaddingBottom = computedStyles.getPropertyValue('padding-bottom');
     const animStyles = {
-        height: [`${currentHeight}px`, '0px'],
+        maxHeight: [`${currentHeight}px`, '0px'],
         overflow: ['hidden', 'hidden'],
         paddingTop: [currentPaddingTop, '0px'],
         paddingBottom: [currentPaddingBottom, '0px'],
@@ -57,7 +120,7 @@ export function slideDown(element, animTime = 400) {
     const targetPaddingTop = computedStyles.getPropertyValue('padding-top');
     const targetPaddingBottom = computedStyles.getPropertyValue('padding-bottom');
     const animStyles = {
-        height: ['0px', `${targetHeight}px`],
+        maxHeight: ['0px', `${targetHeight}px`],
         overflow: ['hidden', 'hidden'],
         paddingTop: ['0px', targetPaddingTop],
         paddingBottom: ['0px', targetPaddingBottom],
@@ -67,48 +130,33 @@ export function slideDown(element, animTime = 400) {
 }
 
 /**
- * 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
- * are an array of two items in the format [initialValue, finalValue]
- * @param {Element} element
- * @param {Object} styles
- * @param {Number} animTime
- * @param {Function} onComplete
+ * Transition the height of the given element between two states.
+ * Call with first state, and you'll receive a function in return.
+ * Call the returned function in the second state to animate between those two states.
+ * If animating to/from 0-height use the slide-up/slide down as easier alternatives.
+ * @param {Element} element - Element to animate
+ * @param {Number} animTime - Animation time in ms
+ * @returns {function} - Function to run in second state to trigger animation.
  */
-function animateStyles(element, styles, animTime = 400, onComplete = null) {
-    const styleNames = Object.keys(styles);
-    for (let style of styleNames) {
-        element.style[style] = styles[style][0];
-    }
-
-    const cleanup = () => {
-        for (let style of styleNames) {
-            element.style[style] = null;
-        }
-        element.style.transition = null;
-        element.removeEventListener('transitionend', cleanup);
-        animateStylesCleanupMap.delete(element);
-        if (onComplete) onComplete();
-    };
+export function transitionHeight(element, animTime = 400) {
+    const startHeight = element.getBoundingClientRect().height;
+    const initialComputedStyles = getComputedStyle(element);
+    const startPaddingTop = initialComputedStyles.getPropertyValue('padding-top');
+    const startPaddingBottom = initialComputedStyles.getPropertyValue('padding-bottom');
 
-    setTimeout(() => {
-        element.style.transition = `all ease-in-out ${animTime}ms`;
-        for (let style of styleNames) {
-            element.style[style] = styles[style][1];
-        }
+    return () => {
+        cleanupExistingElementAnimation(element);
+        const targetHeight = element.getBoundingClientRect().height;
+        const computedStyles = getComputedStyle(element);
+        const targetPaddingTop = computedStyles.getPropertyValue('padding-top');
+        const targetPaddingBottom = computedStyles.getPropertyValue('padding-bottom');
+        const animStyles = {
+            height: [`${startHeight}px`, `${targetHeight}px`],
+            overflow: ['hidden', 'hidden'],
+            paddingTop: [startPaddingTop, targetPaddingTop],
+            paddingBottom: [startPaddingBottom, targetPaddingBottom],
+        };
 
-        element.addEventListener('transitionend', cleanup);
-        animateStylesCleanupMap.set(element, cleanup);
-    }, 15);
+        animateStyles(element, animStyles, animTime);
+    };
 }
-
-/**
- * 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();
-    }
-}
\ No newline at end of file