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[Mobile] - Enable font size and line height support and addresses Android issues #38205

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merged 14 commits into from
Jan 31, 2022

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@geriux geriux commented Jan 25, 2022

Description

This PR enables font size and line-height support on mobile for block-based themes.

It also includes some fixes on Android and the Heading block.

On Aztec Android, different scales are added to the Heading block. Unfortunately, I couldn't find an easy way to disable this for an specific case like block-based themes. So for now the approach is the following:

  • Bring the scales used in Aztec to subtract it from the font size before setting the value.
  • It adds isHeadingBlock to check if the current tag is from a Heading block, e.g h1, h2, etc.
  • Whenever setBlockType is called, it triggets setFontSize, for cases when the Heading block was already created but its level changes e.g from h1 to h2.

This also limits the minimum value that can be set for line-height to 1, lower values break on Android where the block doesn't show the correct height.

Testing Instructions

Font size (block-based themes: Calvin, Quadrat, etc.)

Test case 1

  • Add a Paragraph block
  • Type in some text
  • Open the block settings
  • Change the font size
  • Expect to see the text with the selected new size

Test case 2

  • Add a Heading block
  • Type in some text
  • Change through different levels, h1, h3, h4
  • Expect to see the block change accordingly

Test case 3

  • Add a Heading block
  • Set the H1 level
  • Type in a long text so there are multiple lines
  • Expect the text to show correctly without overlapping
  • Open the block settings
  • Change the font size
  • Expect to see the text with the new font size
  • Change to the H4 level
  • Expect the text to keep the same font size selected before
  • Open the block settings
  • Select the Default font size
  • Expect to see the font size go back to the selected heading level default size

Line-height (block-based themes: Calvin, Quadrat, etc.)

Test case 1

  • Open the app
  • Add a Paragraph block
  • Type in several lines of text
  • Open the block settings
  • Change the line-height
  • Expect to see the line height to change

Test case 2

  • Add a Heading block
  • Type in several lines of text
  • Open the block settings
  • Change the line-height
  • Expect to see the line height to change
  • Change the heading level to H1
  • Expect the font size value to change and the line-height to update accordingly to the new size

Test case 3

  • Add a Heading block
  • Type in several lines of text
  • Open the block settings
  • Check that you can't select a line-height value lower than 1

Font size (standard theme: Seedlet)

Test case 1

  • Open the app
  • Add a Paragraph block
  • Type in some text
  • Open the block settings
  • Expect to not see the font size picker

Test case 2

  • Open the app
  • Add a Heading block
  • Type in some text
  • Change to H1
  • Expect the font size to change
  • Change to H3
  • Expect the font size to change

Line-height (standard theme: Seedlet)

Test case 1

  • Open the app
  • Add a Heading block
  • Type in some text
  • Open the block settings
  • Expect to not see the line height picker

Screenshots

Font size (block-based themes: Calvin, Quadrat, etc.)

Test case 1 Test case 2 Test case 3

Line-height (block-based themes: Calvin, Quadrat, etc.)

Test case 1 Test case 2 Test case 3

Font size (standard theme: Seedlet)

Test case 1 Test case 2

Line-height (standard theme: Seedlet)

Test case 1

Types of changes

New feature

Checklist:

  • My code is tested.
  • My code follows the WordPress code style.
  • My code follows the accessibility standards.
  • I've tested my changes with keyboard and screen readers.
  • My code has proper inline documentation.
  • I've included developer documentation if appropriate.
  • I've updated all React Native files affected by any refactorings/renamings in this PR (please manually search all *.native.js files for terms that need renaming or removal).
  • I've updated related schemas if appropriate.

@geriux geriux added [Status] In Progress Tracking issues with work in progress Mobile App - i.e. Android or iOS Native mobile impl of the block editor. (Note: used in scripts, ping mobile folks to change) labels Jan 25, 2022
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Size Change: -430 B (0%)

Total Size: 1.14 MB

Filename Size Change
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build/block-library/blocks/navigation/editor.css 1.91 kB -87 B (-4%)
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ℹ️ View Unchanged
Filename Size
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compressed-size-action

@geriux geriux added the Mobile App - Automation Label used to initiate Mobile App PR Automation label Jan 27, 2022
@geriux geriux changed the title [Mobile] - Rich Text - Fixes line height issues on Android for the Heading block [Mobile] - Enable font size and line height support and addresses Android issues Jan 27, 2022
@geriux geriux requested a review from antonis January 27, 2022 20:09
@geriux geriux removed the [Status] In Progress Tracking issues with work in progress label Jan 27, 2022
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Great work @geriux 👍
I tested the changes on a Pixel 5 (Android 12) and an iPhone SE 2020 (iOS 14.7.1) and everything worked as expected. The code changes also LGTM 🎉
Thank you for wrangling this 🙇

@geriux geriux merged commit fa5c739 into trunk Jan 31, 2022
@geriux geriux deleted the rnmobile/fix/line-height-android-block-based-themes branch January 31, 2022 12:25
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