| <!DOCTYPE html> |
| <title>Correct behaviour of scroll restoration mode in same document history traversals</title> |
| |
| <style> |
| body { |
| height: 10000px; |
| width: 10000px; |
| } |
| </style> |
| |
| <body></body> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script type="text/javascript"> |
| 'use strict'; |
| |
| async_test(function(t) { |
| history.scrollRestoration = 'auto'; |
| window.scrollTo(0, 0); |
| |
| // create history entries and then verify the impact of scrollRestoration |
| // when they are popped |
| var entries = { |
| /* For scroll restoration mode 'auto', the spec does not require scroll |
| position to be restored at any particular value. */ |
| '#1': {type: 'push', expectedScroll: null, scrollRestoration: 'auto'}, |
| '#2': {type: 'replace', expectedScroll: null, scrollRestoration: 'auto'}, |
| /* For scroll restoration mode 'manual', the spec requires scroll position |
| not to be restored. So we expect [555,555] which is the latest position |
| before navigation. */ |
| '#3': {type: 'push', expectedScroll: [555, 555], scrollRestoration: 'manual'}, |
| '#4': {type: 'replace', expectedScroll: [555, 555], scrollRestoration: 'manual'} |
| }; |
| |
| // setup entries |
| for (var key in entries) { |
| var entry = entries[key], |
| beforeValue = history.scrollRestoration, |
| newValue = entry.scrollRestoration; |
| |
| var args = [{key: key}, '', key]; |
| if (entry.type == 'push') { |
| history.pushState.apply(history, args); |
| } else { |
| history.pushState(null, '', key); |
| history.replaceState.apply(history, args); |
| } |
| assert_equals(history.scrollRestoration, beforeValue, `history.scrollRestoration value is retained after pushing new state`); |
| history.scrollRestoration = newValue; |
| assert_equals(history.scrollRestoration, newValue, `Setting scrollRestoration to ${newValue} works as expected`); |
| window.scrollBy(50, 100); |
| } |
| |
| // setup verification |
| window.addEventListener('hashchange', t.step_func(function() { |
| var key = location.hash, |
| entry = entries[key]; |
| |
| if (key === '') { |
| t.done(); |
| return; |
| } |
| assert_equals(history.state.key, key, `state should have key: ${key}`); |
| assert_equals(history.scrollRestoration, entry.scrollRestoration, 'scrollRestoration is updated correctly'); |
| if (entry.expectedScroll) { |
| assert_equals(window.scrollX, entry.expectedScroll[0], `scrollX is correct for ${key}`); |
| assert_equals(window.scrollY, entry.expectedScroll[1], `scrollY is correct for ${key}`); |
| } |
| |
| window.history.back(); |
| })); |
| |
| // reset the scroll and kick off the verification |
| setTimeout(function() { |
| history.pushState(null, null, '#done'); |
| window.scrollTo(555, 555); |
| window.history.back(); |
| }, 0); |
| |
| }, 'history.{push,replace}State retain scroll restoration mode and navigation in the same document respects it'); |
| </script> |
