fix(common): make more restrictive the supportScrollRestoration method #28262

wKoza · 2019-01-20T13:47:42Z

closes #27957

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Tests for the changes have been added (for bug fixes / features)
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Other... Please describe:

What is the current behavior?

Currently, ViewportScroller does not work in Internet Explorer because of the use of scrollX and scrollY. Neither of which are supported by Internet Explorer.

Issue Number: #27957

What is the new behavior?

We check these properties with the supportScrollRestoration method before calling them in getScrollPosition()

Does this PR introduce a breaking change?

Yes
No

Other information

petebacondarwin · 2020-05-28T09:40:44Z

I feel that a better solution would be to use pageXOffset and pageYOffset which are available on IE9-11. See #27957 (comment)

wKoza · 2020-05-28T09:53:04Z

I can update this PR shortly

pkozlowski-opensource

I can update this PR shortly

@wKoza take your time. Also, please make sure that we've got a test exposing the problem we are trying to fix here (we do run test on IE).

petebacondarwin · 2020-11-09T15:08:13Z

@wKoza - are you still interested in fixing this issue?

wKoza · 2020-11-09T15:18:46Z

@petebacondarwin , It was out of my mind but i can do that this week.

google-cla · 2020-11-11T13:13:44Z

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google-cla · 2020-11-11T13:17:03Z

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The PR has moved a lot since this and PK is not active at the moment.

petebacondarwin · 2020-11-11T20:21:43Z

Nice work @wKoza - I have added @atscott as reviewer because he can cover both fw-core and fw-router.

atscott

LGTM. Given that pageYOffset is just an alias for scrollY with better support (namely, in IE), this seems fine aside from the small concern that this could break a few tests.

packages/router/test/bootstrap.spec.ts

atscott · 2020-11-13T21:32:46Z

packages/common/src/viewport_scroller.ts

@@ -166,7 +166,7 @@ export class BrowserViewportScroller implements ViewportScroller {

  private supportsScrolling(): boolean {


I wonder if there's really any value in this anymore. I wouldn't remove it at this point, but it appears that pageXOffset and scrollTo is supported in every browser that we support...

scrollTo doesn't seem to work with IE 11 that is supported by Angular.

…llX / scrollY This fix ensures a better cross-browser compatibility. This fix has been used for angular.io.

…of scrollX / scrollY

atscott · 2020-11-19T17:53:09Z

global presubmit

…llX / scrollY (#28262) This fix ensures a better cross-browser compatibility. This fix has been used for angular.io. PR Close #28262

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wKoza requested a review from a team as a code owner January 20, 2019 13:47

googlebot added the cla: yes label Jan 20, 2019

wKoza force-pushed the fix_supportScrollRestoration branch from c665584 to 6e63c1d Compare January 20, 2019 13:59

jasonaden added the area: common Issues related to APIs in the @angular/common package label Jan 23, 2019

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petebacondarwin added action: cleanup The PR is in need of cleanup, either due to needing a rebase or in response to comments from reviews target: patch This PR is targeted for the next patch release labels Jul 14, 2020

pullapprove bot requested review from mhevery, alxhub, AndrewKushnir, atscott, gkalpak, IgorMinar, jelbourn and kyliau November 9, 2020 20:21

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wKoza force-pushed the fix_supportScrollRestoration branch from 39eba46 to 1371940 Compare November 11, 2020 13:16

wKoza force-pushed the fix_supportScrollRestoration branch from 1371940 to 50f8eeb Compare November 11, 2020 13:20

wKoza force-pushed the fix_supportScrollRestoration branch from 50f8eeb to e356b5d Compare November 11, 2020 13:23

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wKoza added 2 commits November 15, 2020 10:54

fix(common): Prefer to use pageXOffset / pageYOffset instance of scro…

a20fec1

…llX / scrollY This fix ensures a better cross-browser compatibility. This fix has been used for angular.io.

fixup! fix(common): Prefer to use pageXOffset / pageYOffset instance …

9755ef2

…of scrollX / scrollY

wKoza force-pushed the fix_supportScrollRestoration branch from b38df64 to 9755ef2 Compare November 15, 2020 09:55

atscott removed the action: presubmit The PR is in need of a google3 presubmit label Nov 19, 2020

atscott added action: merge The PR is ready for merge by the caretaker and removed action: review The PR is still awaiting reviews from at least one requested reviewer labels Nov 19, 2020

AndrewKushnir closed this in b1d300d Nov 19, 2020

AndrewKushnir pushed a commit that referenced this pull request Nov 19, 2020

fix(common): Prefer to use pageXOffset / pageYOffset instance of scro…

5692607

…llX / scrollY (#28262) This fix ensures a better cross-browser compatibility. This fix has been used for angular.io. PR Close #28262

AndrewKushnir mentioned this pull request Nov 19, 2020

ViewportScroller getScrollPosition does not work in Internet Explorer #27957

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fix(common): make more restrictive the supportScrollRestoration method #28262

fix(common): make more restrictive the supportScrollRestoration method #28262

wKoza commented Jan 20, 2019

petebacondarwin commented May 28, 2020

wKoza commented May 28, 2020

pkozlowski-opensource left a comment

petebacondarwin commented Nov 9, 2020

wKoza commented Nov 9, 2020

google-cla bot commented Nov 11, 2020

google-cla bot commented Nov 11, 2020

google-cla bot commented Nov 11, 2020

petebacondarwin commented Nov 11, 2020

atscott left a comment

atscott Nov 13, 2020

wKoza Nov 15, 2020 •

edited

atscott commented Nov 19, 2020

angular-automatic-lock-bot bot commented Dec 20, 2020

		@@ -166,7 +166,7 @@ export class BrowserViewportScroller implements ViewportScroller {

		private supportsScrolling(): boolean {

fix(common): make more restrictive the supportScrollRestoration method #28262

fix(common): make more restrictive the supportScrollRestoration method #28262

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wKoza commented Jan 20, 2019

PR Checklist

PR Type

What is the current behavior?

What is the new behavior?

Does this PR introduce a breaking change?

Other information

petebacondarwin commented May 28, 2020

wKoza commented May 28, 2020

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petebacondarwin commented Nov 9, 2020

wKoza commented Nov 9, 2020

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petebacondarwin commented Nov 11, 2020

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wKoza Nov 15, 2020 • edited

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atscott commented Nov 19, 2020

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wKoza Nov 15, 2020 •

edited