fix: calling actions view moves down - WPB-20193

[David-Henner]

WPB-20193 [iOS] Calling UI moves down when minimized then maximized

Issue

The call actions view moves outside of the bottom safe area after minimising and maximising the call view.

Causes

The call actions view is part of the CallingBottomSheetViewController which acts as a swipe-able sheet that only shows the call actions by default, and displays the participants list when the user swipes up. This mechanism relies on a constraint that offsets the position of the view.

The offset is based on the call actions view height constraint. When the offset is updated, the height constraint misses the height of the bottom safe area (it evaluates to 0 because the view hasn't been laid out yet).

In addition to this, the height constraint doesn't take into account the SecurityLevelView height, which can further lower the calculated offset.

Solution

• Update the height constraint after viewDidLayoutSubviews() so that the bottom safe area height is factored in
• Inform the CallingBottomSheetViewController it needs to update the offset when the call actions view height constraint changes
• Include the SecurityLevelView height in the call actions view height constraint

Testing

• Start / join a call in a classified / unclassified conversation (it needs to have the classification banner)
• Minimise and maximise the call view

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Checklist

• Title contains a reference JIRA issue number like [WPB-XXX].
• Description is filled and free of optional paragraphs.
• Adds/updates automated tests.

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UI accessibility checklist

If your PR includes UI changes, please utilize this checklist:

• Make sure you use the API for UI elements that support large fonts.
• All colors are taken from WireDesign.ColorTheme or constructed using WireDesign.BaseColorPalette.
• New UI elements have Accessibility strings for VoiceOver.

[github-actions]

Test Results

    2 files      3 suites   2m 0s ⏱️
1 824 tests 1 797 ✅ 27 💤 0 ❌
1 834 runs  1 807 ✅ 27 💤 0 ❌

Results for commit abcdab4.

[netbe]

LGTM;)