| <!doctype html> |
| <meta charset=utf-8> |
| <title>Animating CSS logical properties using CSS Transitions</title> |
| <link rel="help" href="https://drafts.csswg.org/css-logical/#box"> |
| <meta name="assert" content="The specified values of these properties are separate from the specified values of the parallel physical properties, but the flow-relative and physical properties share computed values."> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="../css-animations/support/testcommon.js"></script> |
| |
| <div id="log"></div> |
| <div id="test"></div> |
| <script> |
| 'use strict'; |
| |
| const testEl = document.getElementById("test"); |
| |
| function makeDeclaration(object = {}) { |
| return Object.entries(object).map(([prop, val]) => prop + ": " + val).join("; "); |
| } |
| |
| /** |
| * Starts a CSS transition in testEl. By default, the transition will affect the properies |
| * specified in finalStyles, be linear, last 10 seconds and start halfway, but this can be |
| * overridden in baseStyles. |
| * |
| * @param t The testharness.js Test object. |
| * @param baseStyles A dictionary object with property names and values to set on the |
| * element before starting the transition. |
| * @param finalStyles A dictionary object with property names and values towards which |
| * the element will transition. |
| * @param [transitionStyles] An optional dictionary object to costumize the transition. |
| */ |
| function transition(t, baseStyles, finalStyles, transitionStyles = {}) { |
| // Clear styles from previous test. |
| testEl.style.cssText = ""; |
| testEl.className = ""; |
| getComputedStyle(testEl).height; |
| |
| // Set base and final styles |
| addStyle(t, { |
| "#test": makeDeclaration(baseStyles), |
| "#test.transition": makeDeclaration(finalStyles), |
| }); |
| getComputedStyle(testEl).height; |
| |
| // Set transition styles |
| const defaultTransition = { |
| "transition-property": Object.keys(finalStyles).join(", "), |
| "transition-timing-function": "linear", |
| "transition-duration": "10s", |
| "transition-delay": "-5s", |
| }; |
| addStyle(t, { |
| "#test": makeDeclaration(Object.assign(defaultTransition, transitionStyles)), |
| }); |
| |
| // Start the transition |
| testEl.className = "transition"; |
| } |
| |
| test(t => { |
| transition(t, { |
| "block-size": "0px", |
| }, { |
| "block-size": "100px", |
| }); |
| assert_equals(getComputedStyle(testEl).height, '50px'); |
| }, 'Logical properties can be transitioned'); |
| |
| test(t => { |
| transition(t, { |
| "block-size": "0px", |
| "writing-mode": "vertical-rl", |
| }, { |
| "block-size": "100px", |
| }); |
| assert_equals(getComputedStyle(testEl).width, '50px'); |
| assert_equals(getComputedStyle(testEl).height, '0px'); |
| }, 'Logical properties in transitions respect the writing-mode'); |
| |
| test(t => { |
| transition(t, { |
| "margin-inline-start": "0px", |
| "direction": "rtl", |
| }, { |
| "margin-inline-start": "100px", |
| }); |
| assert_equals(getComputedStyle(testEl).marginLeft, '0px'); |
| assert_equals(getComputedStyle(testEl).marginRight, '50px'); |
| }, 'Logical properties in transitions respect the direction'); |
| |
| test(t => { |
| transition(t, { |
| "block-size": "0px", |
| "height": "200px", |
| }, { |
| "block-size": "100px", |
| "height": "300px", |
| }); |
| assert_equals(getComputedStyle(testEl).height, '250px'); |
| }, 'Declaration order is respected within declaration blocks'); |
| |
| test(t => { |
| transition(t, {}, { |
| "margin-top": "200px", |
| "margin-block-start": "100px" |
| }, { |
| "transition-timing-function": "step-start", |
| }); |
| assert_equals(getComputedStyle(testEl).marginTop, '100px'); |
| }, 'Logical properties are able to override physical properties in declaration blocks'); |
| |
| test(t => { |
| transition(t, {}, { |
| "margin-inline": "200px", |
| "margin-inline-start": "0px", |
| "margin-inline-start": "100px", |
| }, { |
| "transition-timing-function": "step-start", |
| }); |
| assert_equals(getComputedStyle(testEl).marginLeft, '100px'); |
| }, 'Declaration order is respected amongst logical properties within declaration blocks'); |
| |
| test(t => { |
| transition(t, { |
| "block-size": "200px", |
| }, { |
| "height": "300px", |
| }); |
| assert_equals(getComputedStyle(testEl).height, '250px'); |
| }, 'Physical properties and logical properties can be mixed'); |
| |
| test(t => { |
| transition(t, { |
| "height": "100px", |
| "block-size": "200px", |
| }, { |
| "block-size": "100px", |
| "height": "300px", |
| }); |
| assert_equals(getComputedStyle(testEl).height, '250px'); |
| }, 'Declaration order is respected on each keyframe individually'); |
| |
| test(t => { |
| transition(t, { |
| "width": "0px", |
| "height": "0px", |
| "block-size": "0px", |
| }, { |
| "block-size": "100px", |
| }); |
| assert_equals(getComputedStyle(testEl).width, '0px'); |
| assert_equals(getComputedStyle(testEl).height, '50px'); |
| |
| testEl.style.writingMode = 'vertical-rl'; |
| assert_equals(getComputedStyle(testEl).width, '50px'); |
| assert_equals(getComputedStyle(testEl).height, '0px'); |
| }, 'Transitions update when the writing-mode is changed'); |
| |
| promise_test(async t => { |
| transition(t, { |
| "width": "0px", |
| "height": "0px", |
| "block-size": "0px", |
| }, { |
| "block-size": "100px", |
| }, { |
| "transition-delay": "-9.9s", |
| }); |
| const watcher = new EventWatcher(t, testEl, [ 'transitionend' ]); |
| await watcher.wait_for('transitionend'); |
| |
| assert_equals(getComputedStyle(testEl).width, '0px'); |
| assert_equals(getComputedStyle(testEl).height, '100px'); |
| |
| testEl.style.transition = 'none'; |
| testEl.style.writingMode = 'vertical-rl'; |
| assert_equals(getComputedStyle(testEl).width, '100px'); |
| assert_equals(getComputedStyle(testEl).height, '0px'); |
| }, 'Filling transitions update when the writing-mode is changed'); |
| |
| test(t => { |
| transition(t, { |
| "width": "0px", |
| "height": "0px", |
| }, { |
| "block-size": "100px", |
| "height": "200px", |
| }); |
| |
| // Initially we are interpolating the height from 0 to 200px |
| assert_equals(getComputedStyle(testEl).width, '0px'); |
| assert_equals(getComputedStyle(testEl).height, '100px'); |
| |
| // But once we change the writing-mode, we will be interpolating *both* |
| // the height (from 0px to 200px) *and* the width (from 0px to 100px). |
| testEl.style.writingMode = 'vertical-rl'; |
| assert_equals(getComputedStyle(testEl).width, '50px'); |
| assert_equals(getComputedStyle(testEl).height, '100px'); |
| }, 'The number of interpolating properties can be increased when the' |
| + ' writing-mode is changed'); |
| |
| test(t => { |
| transition(t, { |
| "width": "100px", |
| "height": "100px", |
| }, { |
| "width": "500px", |
| "block-size": "200px", |
| }); |
| |
| // Initially we are interpolating the width (100px -> 500px) and the height |
| // (100px -> 200px). |
| assert_equals(getComputedStyle(testEl).width, '300px'); |
| assert_equals(getComputedStyle(testEl).height, '150px'); |
| |
| // Once we change the writing-mode, we will be interpolating *only* the |
| // width (300px -> 200px). |
| testEl.style.writingMode = 'vertical-rl'; |
| assert_equals(getComputedStyle(testEl).width, '250px'); |
| assert_equals(getComputedStyle(testEl).height, '100px'); |
| }, 'The number of interpolating properties can be decreased when the' |
| + ' writing-mode is changed'); |
| |
| test(t => { |
| addStyle(t, { ':root': '--writingMode: horizontal-tb' }); |
| transition(t, { |
| "width": "0px", |
| "height": "0px", |
| "writing-mode": "var(--writingMode)", |
| "block-size": "0px", |
| }, { |
| "block-size": "100px" |
| }); |
| assert_equals(getComputedStyle(testEl).width, '0px'); |
| assert_equals(getComputedStyle(testEl).height, '50px'); |
| |
| testEl.style.setProperty('--writingMode', 'vertical-rl'); |
| assert_equals(getComputedStyle(testEl).width, '50px'); |
| assert_equals(getComputedStyle(testEl).height, '0px'); |
| }, 'Transitions update when the writing-mode is changed through a CSS variable'); |
| |
| test(t => { |
| transition(t, { |
| "margin-inline-start": "0px", |
| }, { |
| "margin-inline-start": "100px", |
| }); |
| assert_equals(getComputedStyle(testEl).marginLeft, '50px'); |
| assert_equals(getComputedStyle(testEl).marginRight, '0px'); |
| |
| testEl.style.direction = 'rtl'; |
| assert_equals(getComputedStyle(testEl).marginLeft, '0px'); |
| assert_equals(getComputedStyle(testEl).marginRight, '50px'); |
| }, 'Transitions update when the direction is changed'); |
| |
| test(t => { |
| transition(t, { |
| "margin-inline-start": "100px", |
| }, { |
| "margin-left": "200px", |
| }); |
| assert_equals(getComputedStyle(testEl).marginLeft, '150px'); |
| assert_equals(getComputedStyle(testEl).marginRight, '0px'); |
| |
| testEl.style.direction = 'rtl'; |
| assert_equals(getComputedStyle(testEl).marginLeft, '150px'); |
| assert_equals(getComputedStyle(testEl).marginRight, '100px'); |
| }, 'Transitions from logical to physical update when the direction is changed'); |
| |
| test(t => { |
| transition(t, { |
| "margin-left": "200px", |
| }, { |
| "margin-inline-start": "100px", |
| }); |
| assert_equals(getComputedStyle(testEl).marginLeft, '150px'); |
| assert_equals(getComputedStyle(testEl).marginRight, '0px'); |
| |
| testEl.style.direction = 'rtl'; |
| assert_equals(getComputedStyle(testEl).marginLeft, '200px'); |
| assert_equals(getComputedStyle(testEl).marginRight, '50px'); |
| }, 'Transitions from physical to logical update when the direction is changed'); |
| </script> |