Fix pdf blinks when open it

[bernhardoj]

Details

The blink happens because we change the component tree when the pdf loads completes which will recreate the pdf component again. This PR fix it.

Fixed Issues

$ #42103
PROPOSAL: #42103 (comment)

Tests

Same as QA Steps

• Verify that no errors appear in the JS console

Offline tests

Same as QA Steps

QA Steps

Prerequisite: send a pdf attachment

1. Open the chat with the pdf attachment
2. Press the pdf preview to open the attachment
3. Verify the pdf doesn't blink

• Verify that no errors appear in the JS console

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
• I wrote clear testing steps that cover the changes made in this PR
  • I added steps for local testing in the Tests section
  • I added steps for the expected offline behavior in the Offline steps section
  • I added steps for Staging and/or Production testing in the QA steps section
  • I added steps to cover failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
  • I tested this PR with a High Traffic account against the staging or production API to ensure there are no regressions (e.g. long loading states that impact usability).
• I included screenshots or videos for tests on all platforms
• I ran the tests on all platforms & verified they passed on:
  • Android: Native
  • Android: mWeb Chrome
  • iOS: Native
  • iOS: mWeb Safari
  • MacOS: Chrome / Safari
  • MacOS: Desktop
• I verified there are no console errors (if there's a console error not related to the PR, report it or open an issue for it to be fixed)
• I followed proper code patterns (see Reviewing the code)
  • I verified that any callback methods that were added or modified are named for what the method does and never what callback they handle (i.e. toggleReport and not onIconClick)
  • I verified that the left part of a conditional rendering a React component is a boolean and NOT a string, e.g. myBool && <MyComponent />.
  • I verified that comments were added to code that is not self explanatory
  • I verified that any new or modified comments were clear, correct English, and explained "why" the code was doing something instead of only explaining "what" the code was doing.
  • I verified any copy / text shown in the product is localized by adding it to src/languages/* files and using the translation method
    • If any non-english text was added/modified, I verified the translation was requested/reviewed in #expensify-open-source and it was approved by an internal Expensify engineer. Link to Slack message:
  • I verified all numbers, amounts, dates and phone numbers shown in the product are using the localization methods
  • I verified any copy / text that was added to the app is grammatically correct in English. It adheres to proper capitalization guidelines (note: only the first word of header/labels should be capitalized), and is either coming verbatim from figma or has been approved by marketing (in order to get marketing approval, ask the Bug Zero team member to add the Waiting for copy label to the issue)
  • I verified proper file naming conventions were followed for any new files or renamed files. All non-platform specific files are named after what they export and are not named "index.js". All platform-specific files are named for the platform the code supports as outlined in the README.
  • I verified the JSDocs style guidelines (in STYLE.md) were followed
• If a new code pattern is added I verified it was agreed to be used by multiple Expensify engineers
• I followed the guidelines as stated in the Review Guidelines
• I tested other components that can be impacted by my changes (i.e. if the PR modifies a shared library or component like Avatar, I verified the components using Avatar are working as expected)
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• I verified any variables that can be defined as constants (ie. in CONST.js or at the top of the file that uses the constant) are defined as such
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• If any new file was added I verified that:
  • The file has a description of what it does and/or why is needed at the top of the file if the code is not self explanatory
• If a new CSS style is added I verified that:
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  • The style can't be created with an existing StyleUtils function (i.e. StyleUtils.getBackgroundAndBorderStyle(theme.componentBG))
• If the PR modifies code that runs when editing or sending messages, I tested and verified there is no unexpected behavior for all supported markdown - URLs, single line code, code blocks, quotes, headings, bold, strikethrough, and italic.
• If the PR modifies a generic component, I tested and verified that those changes do not break usages of that component in the rest of the App (i.e. if a shared library or component like Avatar is modified, I verified that Avatar is working as expected in all cases)
• If the PR modifies a component related to any of the existing Storybook stories, I tested and verified all stories for that component are still working as expected.
• If the PR modifies a component or page that can be accessed by a direct deeplink, I verified that the code functions as expected when the deeplink is used - from a logged in and logged out account.
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  • I verified that all the inputs inside a form are aligned with each other.
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• If a new page is added, I verified it's using the ScrollView component to make it scrollable when more elements are added to the page.
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Screenshots/Videos

Android: Native

Screen.Recording.2024-05-17.at.12.37.49.mov

Android: mWeb Chrome

Screen.Recording.2024-05-17.at.12.34.02.mov

iOS: Native

Screen.Recording.2024-05-17.at.12.32.22.mov

iOS: mWeb Safari

Screen.Recording.2024-05-17.at.12.30.50.mov

MacOS: Chrome / Safari

Screen.Recording.2024-05-17.at.12.29.54.mov

MacOS: Desktop

Screen.Recording.2024-05-17.at.12.30.14.mov

[melvin-bot]

@mananjadhav Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button]

[bernhardoj]

@mananjadhav I tested a multi-page PDF and I can't scroll it on Android, basically this PR will reraise #20867 again. #20867 is the one that causes our issue here. The root cause is explained on the proposal there, but in short, it's because our Pressable component when disabled doesn't really disable the Pressable, but just pass an undefined event handler to it.

App/src/components/Pressable/GenericPressable/BaseGenericPressable.tsx

Lines 139 to 143 in e8ae3c5

	onPress={!isDisabled ? singleExecution(onPressHandler) : undefined}
	onLongPress={!isDisabled && onLongPress ? onLongPressHandler : undefined}
	onKeyDown={!isDisabled ? onKeyDown : undefined}
	onPressIn={!isDisabled ? onPressIn : undefined}
	onPressOut={!isDisabled ? onPressOut : undefined}

I think to solve both issues, we should have a new prop for Pressable called something like, fullDisabled and use it to set the disabled props of BaseGenericPressable. What do you think?

[mananjadhav]

when disabled doesn't really disable the Pressable, but just pass an undefined event handler to it.

@bernhardoj I don't completely follow what you mean? You mean in our PR or the props in general? I am not sure if we really need fullDisabled. Can you rephrase what you mean? May be we can then come up with an alternative.

cc - @blimpich

[bernhardoj]

@mananjadhav that's how the disabled props of our custom Pressable currently works as shown in this code.

App/src/components/Pressable/GenericPressable/BaseGenericPressable.tsx

Lines 139 to 143 in e8ae3c5

	onPress={!isDisabled ? singleExecution(onPressHandler) : undefined}
	onLongPress={!isDisabled && onLongPress ? onLongPressHandler : undefined}
	onKeyDown={!isDisabled ? onKeyDown : undefined}
	onPressIn={!isDisabled ? onPressIn : undefined}
	onPressOut={!isDisabled ? onPressOut : undefined}

There is no disabled={disabled}. We are just passing an undefined callback, so the pressable responder is still working. The only way to disable the responder is by setting the RN Pressable disabled to true.

[mananjadhav]

and what happens if we actually add disabled: true in here.

App/src/components/Pressable/GenericPressable/index.native.tsx

Lines 9 to 12 in e8ae3c5

	focusable
	accessible
	accessibilityHint={props.accessibilityHint ?? props.accessibilityLabel}
	// eslint-disable-next-line react/jsx-props-no-spreading

[bernhardoj]

It will still be the same since we take out the disabled props from the ...rest props.

App/src/components/Pressable/GenericPressable/BaseGenericPressable.tsx

Lines 22 to 38 in e8ae3c5

	disabled,
	style,
	disabledStyle = {},
	hoverStyle = {},
	focusStyle = {},
	pressStyle = {},
	screenReaderActiveStyle = {},
	shouldUseHapticsOnLongPress = true,
	shouldUseHapticsOnPress = false,
	nextFocusRef,
	keyboardShortcut,
	shouldUseAutoHitSlop = false,
	enableInScreenReaderStates = CONST.SCREEN_READER_STATES.ALL,
	onPressIn,
	onPressOut,
	accessible = true,
	...rest

[mananjadhav]

Okay I am okay having a fullDisabled prop. @blimpich Any thoughts?

[blimpich]

Fine by me 👍

[mananjadhav]

@bernhardoj Can we work on the fix?

[bernhardoj]

@mananjadhav updated

[mananjadhav]

Reviewer Checklist

• I have verified the author checklist is complete (all boxes are checked off).
• I verified the correct issue is linked in the ### Fixed Issues section above
• I verified testing steps are clear and they cover the changes made in this PR
  • I verified the steps for local testing are in the Tests section
  • I verified the steps for Staging and/or Production testing are in the QA steps section
  • I verified the steps cover any possible failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
• I checked that screenshots or videos are included for tests on all platforms
• I included screenshots or videos for tests on all platforms
• I verified tests pass on all platforms & I tested again on:
  • Android: Native
  • Android: mWeb Chrome
  • iOS: Native
  • iOS: mWeb Safari
  • MacOS: Chrome / Safari
  • MacOS: Desktop
• If there are any errors in the console that are unrelated to this PR, I either fixed them (preferred) or linked to where I reported them in Slack
• I verified proper code patterns were followed (see Reviewing the code)
  • I verified that any callback methods that were added or modified are named for what the method does and never what callback they handle (i.e. toggleReport and not onIconClick).
  • I verified that the left part of a conditional rendering a React component is a boolean and NOT a string, e.g. myBool && <MyComponent />.
  • I verified that comments were added to code that is not self explanatory
  • I verified that any new or modified comments were clear, correct English, and explained "why" the code was doing something instead of only explaining "what" the code was doing.
  • I verified any copy / text shown in the product is localized by adding it to src/languages/* files and using the translation method
  • I verified all numbers, amounts, dates and phone numbers shown in the product are using the localization methods
  • I verified any copy / text that was added to the app is grammatically correct in English. It adheres to proper capitalization guidelines (note: only the first word of header/labels should be capitalized), and is either coming verbatim from figma or has been approved by marketing (in order to get marketing approval, ask the Bug Zero team member to add the Waiting for copy label to the issue)
  • I verified proper file naming conventions were followed for any new files or renamed files. All non-platform specific files are named after what they export and are not named "index.js". All platform-specific files are named for the platform the code supports as outlined in the README.
  • I verified the JSDocs style guidelines (in STYLE.md) were followed
• If a new code pattern is added I verified it was agreed to be used by multiple Expensify engineers
• I verified that this PR follows the guidelines as stated in the Review Guidelines
• I verified other components that can be impacted by these changes have been tested, and I retested again (i.e. if the PR modifies a shared library or component like Avatar, I verified the components using Avatar have been tested & I retested again)
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• If any new file was added I verified that:
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  • A similar style doesn't already exist
  • The style can't be created with an existing StyleUtils function (i.e. StyleUtils.getBackgroundAndBorderStyle(theme.componentBG)
• If the PR modifies code that runs when editing or sending messages, I tested and verified there is no unexpected behavior for all supported markdown - URLs, single line code, code blocks, quotes, headings, bold, strikethrough, and italic.
• If the PR modifies a generic component, I tested and verified that those changes do not break usages of that component in the rest of the App (i.e. if a shared library or component like Avatar is modified, I verified that Avatar is working as expected in all cases)
• If the PR modifies a component related to any of the existing Storybook stories, I tested and verified all stories for that component are still working as expected.
• If the PR modifies a component or page that can be accessed by a direct deeplink, I verified that the code functions as expected when the deeplink is used - from a logged in and logged out account.
• If the PR modifies the UI (e.g. new buttons, new UI components, changing the padding/spacing/sizing, moving components, etc) or modifies the form input styles:
  • I verified that all the inputs inside a form are aligned with each other.
  • I added Design label and/or tagged @Expensify/design so the design team can review the changes.
• If a new page is added, I verified it's using the ScrollView component to make it scrollable when more elements are added to the page.
• If the main branch was merged into this PR after a review, I tested again and verified the outcome was still expected according to the Test steps.
• I have checked off every checkbox in the PR reviewer checklist, including those that don't apply to this PR.

Screenshots/Videos

Android: Native

android-pdf-blink.mov

Android: mWeb Chrome

mweb-chrome-pdf-blink.mov

iOS: Native

ios-pdf-blink.mov

iOS: mWeb Safari

mweb-safari-pdf-blink.mov

MacOS: Chrome / Safari

web-pdf-blink.mov

MacOS: Desktop

desktop-pdf-blink.mov

[blimpich]

LGTM! Waiting on merge freeze to end to merge.

[OSBotify]

✋ This PR was not deployed to staging yet because QA is ongoing. It will be automatically deployed to staging after the next production release.

[OSBotify]

🚀 Deployed to staging by https://github.com/chiragsalian in version: 1.4.76-0 🚀

platform	result
🤖 android 🤖	success ✅
🖥 desktop 🖥	success ✅
🍎 iOS 🍎	success ✅
🕸 web 🕸	success ✅

[OSBotify]

🚀 Deployed to production by https://github.com/Beamanator in version: 1.4.76-7 🚀

platform	result
🤖 android 🤖	success ✅
🖥 desktop 🖥	success ✅
🍎 iOS 🍎	success ✅
🕸 web 🕸	success ✅

[hannojg]

I don't understand why we manually disable the on* events manually. If we'd just pass along the disabled prop, the gesture responder would be deactivate and none of the callbacks would fire 🤔
That seems way simpler than turning off everything manually + adding additional props such as "fullDisabled" ?

[bernhardoj]

@hannojg I don't have full context on why we do that, but one thing that I can guess is that if we use disabled prop of the Pressable, Tooltip wrapped on a Pressable won't work anymore because the onMouse* event is now disabled which the Tooltip rely on.