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fix(list): don't redirect focus to first option on mouse focus #19889

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crisbeto
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@crisbeto crisbeto commented Jul 7, 2020

We have some logic that redirects focus to the first option whenever the list receives focus. The main target for this is tabbing into the list, but because we were using the focus event, it was also happening for mouse focus which can cause the page to jump around for long lists. These changes make it so that we only move it on keyboard and programmatic focus.

Fixes #18948.

We have some logic that redirects focus to the first option whenever the list receives focus. The main target for this is tabbing into the list, but because we were using the `focus` event, it was also happening for mouse focus which can cause the page to jump around for long lists. These changes make it so that we only move it on keyboard and programmatic focus.

Fixes angular#18948.
@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 Jul 7, 2020
@googlebot googlebot added the cla: yes PR author has agreed to Google's Contributor License Agreement label Jul 7, 2020
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LGTM

@jelbourn jelbourn added lgtm action: merge The PR is ready for merge by the caretaker labels Jul 8, 2020
@mmalerba mmalerba removed the lgtm label Jul 31, 2020
@wagnermaciel wagnermaciel merged commit 22eca83 into angular:master Aug 20, 2020
wagnermaciel pushed a commit that referenced this pull request Aug 20, 2020
We have some logic that redirects focus to the first option whenever the list receives focus. The main target for this is tabbing into the list, but because we were using the `focus` event, it was also happening for mouse focus which can cause the page to jump around for long lists. These changes make it so that we only move it on keyboard and programmatic focus.

Fixes #18948.

(cherry picked from commit 22eca83)
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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(MatSelectionList): Last selected mat-list-option is shown when clicking on mat-list-item outside of the view
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