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fix(drag-drop): preview matchSize sometimes incorrect inside flex container #19062

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merged 1 commit into from
Apr 20, 2020

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crisbeto
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We create a custom preview through ViewContainerRef.createEmbeddedView and we move it to the correct place in the DOM. The problem is that for the brief period that it's in the DOM, we also measure the host node if the matchSize option is set. In some cases (e.g. a flex container), this can throw off the size. These changes switch to measuring the size ahead of time when necessary.

Fixes #19060.

…tainer

We create a custom preview through `ViewContainerRef.createEmbeddedView` and we move it to the correct place in the DOM. The problem is that for the brief period that it's in the DOM, we also measure the host node if the `matchSize` option is set. In some cases (e.g. a flex container), this can throw off the size. These changes switch to measuring the size ahead of time when necessary.

Fixes angular#19060.
@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 Apr 13, 2020
@googlebot googlebot added the cla: yes PR author has agreed to Google's Contributor License Agreement label Apr 13, 2020
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LGTM

@mmalerba mmalerba added lgtm action: merge The PR is ready for merge by the caretaker labels Apr 13, 2020
@jelbourn jelbourn merged commit cd75979 into angular:master Apr 20, 2020
jelbourn pushed a commit that referenced this pull request Apr 20, 2020
…tainer (#19062)

We create a custom preview through `ViewContainerRef.createEmbeddedView` and we move it to the correct place in the DOM. The problem is that for the brief period that it's in the DOM, we also measure the host node if the `matchSize` option is set. In some cases (e.g. a flex container), this can throw off the size. These changes switch to measuring the size ahead of time when necessary.

Fixes #19060.

(cherry picked from commit cd75979)
soro-google pushed a commit to soro-google/components that referenced this pull request Apr 24, 2020
…tainer (angular#19062)

We create a custom preview through `ViewContainerRef.createEmbeddedView` and we move it to the correct place in the DOM. The problem is that for the brief period that it's in the DOM, we also measure the host node if the `matchSize` option is set. In some cases (e.g. a flex container), this can throw off the size. These changes switch to measuring the size ahead of time when necessary.

Fixes angular#19060.
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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(drag-drop): cdkDragPreview matchSize does not always match size due to view container insertion
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