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@crisbeto crisbeto commented Aug 2, 2021

When we measure the size of the autosize textarea, we make it temporarily smaller which can cause the scroll position to shift on Firefox. These changes add a workaround that assign a temporary margin-bottom while measuring.

Fixes #23233.

@crisbeto crisbeto added P3 An issue that is relevant to core functions, but does not impede progress. Important, but not urgent target: patch This PR is targeted for the next patch release labels Aug 2, 2021
@crisbeto crisbeto requested a review from mmalerba August 2, 2021 19:14
@google-cla google-cla bot added the cla: yes PR author has agreed to Google's Contributor License Agreement label Aug 2, 2021
When we measure the size of the autosize `textarea`, we make it temporarily smaller which can cause the scroll position to shift on Firefox. These changes add a workaround that assign a temporary `margin-bottom` while measuring.

Fixes angular#23233.
@crisbeto crisbeto force-pushed the 23233/text-field-autosize branch from 96fbe84 to 3a7096c Compare August 2, 2021 19:22
@crisbeto crisbeto changed the title fix(cdk/autosize): avoid page jump on firefox fix(cdk/text-field): avoid page jump on firefox Aug 2, 2021
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LGTM

@mmalerba mmalerba added the action: merge The PR is ready for merge by the caretaker label Aug 2, 2021
@zarend zarend merged commit d83e5cf into angular:master Aug 4, 2021
zarend pushed a commit that referenced this pull request Aug 4, 2021
When we measure the size of the autosize `textarea`, we make it temporarily smaller which can cause the scroll position to shift on Firefox. These changes add a workaround that assign a temporary `margin-bottom` while measuring.

Fixes #23233.

(cherry picked from commit d83e5cf)
zarend pushed a commit that referenced this pull request Aug 4, 2021
When we measure the size of the autosize `textarea`, we make it temporarily smaller which can cause the scroll position to shift on Firefox. These changes add a workaround that assign a temporary `margin-bottom` while measuring.

Fixes #23233.

(cherry picked from commit d83e5cf)
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action: merge The PR is ready for merge by the caretaker cla: yes PR author has agreed to Google's Contributor License Agreement P3 An issue that is relevant to core functions, but does not impede progress. Important, but not urgent target: patch This PR is targeted for the next patch release

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bug(cdkTextareaAutosize): Resize in firefox seems to mess up scroll position

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