Project Fugu: Progressive Web Apps, Superpowered

Progressive Web Apps are a great cross-platform application model, even if somewhat restricted in use—until now, that is. Project Fugu is an initiative led by Google, Microsoft, and Intel. Their goal: a more capable web. Home screen icon badges and shortcuts, clipboard access, accelerated shape detection in images and native file system access are only a few examples of Fugu’s powerful APIs. In this session, Christian Liebel, PWA specialist at Thinktecture, shows you the objective of Project Fugu and demonstrates some of its APIs. Are you ready to superpower your Progressive Web App?

Transcript

1. Project Fugu
   Progressive Web Apps, Superpowered
   Christian Liebel
   @christianliebel
   Consultant
   

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2. Hello, it’s me.
   Project Fugu
   Progressive Web Apps, Superpowered
   Christian Liebel
   Twitter:
   @christianliebel
   Email:
   christian.liebel
   @thinktecture.com
   Angular & PWA
   Slides:
   thinktecture.com
   /christian-liebel
   

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3. Project Fugu
   Progressive Web Apps, Superpowered
   Web App
   Manifest
   Service
   Worker
   

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4. ✅ Offline capability
   ✅ Push messages
   ✅ Webcam/microphone access
   File System Access
   Raw Clipboard Access
   Local Font Access
   Project Fugu
   Progressive Web Apps, Superpowered
   

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5. Project Fugu
   Progressive Web Apps, Superpowered
   

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6. Cross-Vendor Initiative Led By…
   Project Fugu
   Progressive Web Apps, Superpowered
   Project Fugu – A More Capable Web
   »Let’s bring the web
   back – API by API«
   Thomas Steiner, Google
   

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7. Project Fugu
   Progressive Web Apps, Superpowered
   Project Fugu
   https://goo.gle/fugu-api-tracker
   

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8. Process
   – Write an Explainer (https://github.com/WICG/file-system-
   access/blob/main/EXPLAINER.md)
   – Discuss capability with developers, browser vendors, standard orgs
   – Iterate
   – Compile a design document
   – W3C TAG Review (https://github.com/w3ctag/design-
   reviews/issues/390)
   – Formal spec within Web Incubator Community Group (WICG,
   https://wicg.github.io/file-system-access/)
   Project Fugu
   Progressive Web Apps, Superpowered
   Project Fugu
   

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9. Process
   – Implementation in Chromium
   – Launches behind a flag (chrome://flags/#enable-experimental-web-
   platform-features)
   – Origin Trial (https://developers.chrome.com/origintrials/)
   – Transfer to W3C Working Group + Recommendation?
   Project Fugu
   Progressive Web Apps, Superpowered
   Project Fugu
   

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10. Project Fugu
    Progressive Web Apps, Superpowered
    Project Fugu
    navigator.share({ url: 'http://example.com' });
    ShareIntent DataTransferManager
    …
    NSSharingServicePicker
    

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11. Progressive Enhancement
    if ('share' in navigator) {
    navigator.share({ text: 'Hi!' });
    } else {
    // Fallback method
    }
    Project Fugu
    Progressive Web Apps, Superpowered
    Project Fugu
    

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12. Badging API
    Project Fugu
    Progressive Web Apps, Superpowered
    

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13. Motivation
    - Communicate updates
    without distracting the
    user (in constrast to push
    notifications)
    - Typically displays a badge
    on the home screen, task
    bar or dock
    - Appearance varies from
    platform to platform
    Project Fugu
    Progressive Web Apps, Superpowered
    Badging API
    

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14. API
    Set the badge
    navigator.setAppBadge(5);
    Clear the badge
    navigator.clearAppBadge();
    Project Fugu
    Progressive Web Apps, Superpowered
    Badging API
    

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15. Shortcuts
    Project Fugu
    Progressive Web Apps, Superpowered
    

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16. Provide secondary entry points
    for your application, now also
    for Progressive Web Apps
    added to the home screen
    Windows: Jump List
    iOS: Home Screen Quick
    Actions
    Project Fugu
    Progressive Web Apps, Superpowered
    Shortcuts
    

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17. Web App Manifest Extension
    {
    "shortcuts": [
    {
    "name": "Direct Messages",
    "url": "/mails/new",
    "icons": []
    },
    {
    "name": "Notifications",
    "url": "/appointments/new",
    "icons": []
    }
    ]
    }
    Project Fugu
    Progressive Web Apps, Superpowered
    Shortcuts
    

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18. Screen Wake Lock
    Project Fugu
    Progressive Web Apps, Superpowered
    

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19. Motivation
    - Devices go to sleep in order to reduce energy consumption
    - However, this can get bothersome in some situations (e.g. while
    watching a movie, while cooking, etc.)
    - The Screen Wake Lock API prevents the device from turning of the
    screen while the application has the wake lock
    Project Fugu
    Progressive Web Apps, Superpowered
    Screen Wake Lock API
    

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20. API
    let wakeLockObj;
    if ('wakeLock' in navigator) {
    try {
    wakeLockObj = await navigator.wakeLock.request('screen');
    console.log('👍', 'Screen Wake Lock', wakeLockObj);
    } catch (err) {
    console.error('👎', 'Screen Wake Lock', err);
    }
    }
    Project Fugu
    Progressive Web Apps, Superpowered
    Screen Wake Lock API
    https://web.dev/wake-lock/
    

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21. https://paint.js.org
    LIVE DEMO
    Project Fugu
    Progressive Web Apps, Superpowered
    Async Clipboard & FS Access
    

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22. Async Clipboard API
    Project Fugu
    Progressive Web Apps, Superpowered
    

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23. API
    Copy Content
    await navigator.clipboard.writeText('foo');
    await navigator.clipboard.write(/* data */);
    Paste Content
    const content = await navigator.clipboard.readText();
    const content = await navigator.clipboard.read();
    Project Fugu
    Progressive Web Apps, Superpowered
    Async Clipboard API
    

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24. File System Access API
    Project Fugu
    Progressive Web Apps, Superpowered
    

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25. Motivation
    - Currently, websites only have very limited access to the file system
    - Some applications heavily rely on working with files (e.g. Visual Studio
    Code)
    - Wouldn’t it be great if your web application could open files or folders
    from the native file system?
    Project Fugu
    Progressive Web Apps, Superpowered
    File System Access API
    

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26. API
    if ('showOpenFilePicker' in window) {
    const [handle] = await window.showOpenFilePicker();
    const file = await handle.getFile();
    // do something with the file
    } else {
    // use fallback API or disable feature in app
    }
    Project Fugu
    Progressive Web Apps, Superpowered
    File System Access API
    

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27. API
    const [handle] = await self.showOpenFilePicker({
    multiple: true,
    types: [{
    description: 'PNG files',
    accept: {'image/png': ['.png']}
    }]
    });
    Project Fugu
    Progressive Web Apps, Superpowered
    File System Access API
    

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28. File System Handling API
    Project Fugu
    Progressive Web Apps, Superpowered
    

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29. Motivation
    Register your PWA as a handler for file extensions
    Requires installing the application first
    Declare supported extensions in Web App Manifest and add imperative
    code to your application logic
    Project Fugu
    Progressive Web Apps, Superpowered
    File System Handling API
    

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30. Manifest Extension
    {
    "file_handlers": [{
    "action": "/",
    "accept": {
    "image/png": [".png"]
    }
    }]
    }
    Project Fugu
    Progressive Web Apps, Superpowered
    File System Handling API
    

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31. API
    if ('launchQueue' in window) {
    launchQueue.setConsumer(async params => {
    const [handle] = params.files;
    // do something with the handle
    });
    }
    Project Fugu
    Progressive Web Apps, Superpowered
    File System Handling API
    

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32. Project Fugu
    Progressive Web Apps, Superpowered
    Summary
    

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33. New powerful APIs regularly ship with new releases of Chromium-based
    browsers
    Some only add minor finishing touches, others enable whole application
    categories as productivity apps to finally make the shift to the web
    Some APIs already made their way into other browsers (e.g., Web Share)
    Fugu process makes sure that capabilities are implemented in a secure,
    privacy-preserving manner
    Let’s make the web a more capable platform!
    Project Fugu
    Progressive Web Apps, Superpowered
    Summary
    

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34. Q&A
    Project Fugu
    Progressive Web Apps, Superpowered
    

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35. Thank you
    for your kind attention!
    Christian Liebel
    @christianliebel
    christian.liebel@thinktecture.com
    

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