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New patterns for amazing apps | Blog | web.dev
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analytics-action-close="Callout Profile dismissed" analytics-label="Create Collection Callout" class="devsite-page-bookmark-tooltip nocontent" dismiss-button="true" id="devsite-collections-dropdown" dismiss-button-text="Dismiss" close-button-text="Got it"> <devsite-bookmark></devsite-bookmark> <span slot="popout-heading"> Stay organized with collections </span> <span slot="popout-contents"> Save and categorize content based on your preferences. </span> </devsite-feature-tooltip> <div class="devsite-page-title-meta"><devsite-view-release-notes></devsite-view-release-notes></div> <devsite-toc class="devsite-nav" depth="2" devsite-toc-embedded > </devsite-toc> <div class="devsite-article-body clearfix "> <p>Dive into a fantastic collection of new patterns for amazing apps, including clipboard patterns, file patterns, and app patterns.</p> <p> <div class="wd-authors" translate="no"> <div class="wd-author"> <img class="devsite-landing-row-item-icon" alt="Thomas Steiner" 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C 11.339 4.786 10.951 4.35 10.175 4.35 C 9.317 4.35 8.887 4.867 8.887 5.891 L 8.887 8.124 L 7.113 8.124 L 7.113 5.891 C 7.113 4.867 6.683 4.35 5.825 4.35 C 5.049 4.35 4.661 4.786 4.661 5.646 L 4.661 9.725 L 2.876 9.725 L 2.876 5.522 C 2.876 4.663 3.111 3.981 3.582 3.476 C 4.067 2.971 4.703 2.712 5.493 2.712 C 6.406 2.712 7.098 3.039 7.555 3.695 L 8 4.39 L 8.445 3.695 C 8.902 3.039 9.594 2.712 10.507 2.712 C 11.297 2.712 11.933 2.971 12.418 3.476 C 12.889 3.981 13.124 4.663 13.124 5.522 Z" style="stroke:none;stroke-miterlimit:10;fill-rule:evenodd;"></path> </svg></a> <a href="https://blog.tomayac.com/" aria-label="Thomas Steiner's homepage" rel="me"> <svg xmlns="http://www.w3.org/2000/svg" width="22" height="22" viewBox="0 0 30 30"> <title>Homepage</title> <circle cx="14.5" cy="14.5" r="13.5" stroke-width="2" stroke-miterlimit="10" fill="none" stroke="currentColor" /> <ellipse cx="14.5" cy="14.5" rx="6.1" ry="13.5" stroke-width="2" stroke-miterlimit="10" fill="none" stroke="currentColor" /> <path d="M1.6 9.6h25.8M1.6 19.4h25.8" stroke-width="2" stroke-miterlimit="10" fill="none" stroke="currentColor" /> </svg></a> </div> </div> </div> </div></p> <p>No matter what you build—be it a next generation video editing app, an addictive word game, or a future online social networking app—you will always find yourself in need of a few basic building blocks:</p> <ul> <li>The video editing app will probably allow the user to <em>save</em> the edited video.</li> <li>Your game will maybe allow the user to <em>share</em> game progress with friends.</li> <li>An online social networking app will highly likely allow the user to <em>paste</em> images into a post.</li> </ul> <h2 id="no_universal_way_to_realize_these_patterns" data-text="No universal way to realize these patterns" tabindex="-1">No universal way to realize these patterns</h2> <p>These were just a couple of examples of such patterns, and there are many more. But all of these have one thing in common: there is no universal way to realize them.</p> <h3 id="sharing_progress" data-text="Sharing progress" tabindex="-1">Sharing progress</h3> <p>For example, not all browsers implement the <a href="/articles/web-share">Web Share API</a>, so in some cases you will have to fall back to a different approach, like <a href="https://developer.twitter.com/en/docs/twitter-for-websites/tweet-button/guides/web-intent">Twitter's Web Intents</a>, or copying to the clipboard, which is the <a href="https://twitter.com/powerlanguish/status/1471493886031773707">approach</a> chosen in <a href="https://www.nytimes.com/games/wordle/index.html">Wordle</a> when the Web Share API isn't implemented. Phew, barely got this one:</p> <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Text only"><code translate="no" dir="ltr">Wordle 471 6/6 ⬛⬛⬛⬛🟨 🟩⬛⬛⬛🟨 🟩🟩🟩⬛⬛ 🟩🟩🟩⬛⬛ 🟩🟩🟩🟩⬛ 🟩🟩🟩🟩🟩 </code></pre></devsite-code> <h3 id="saving_files" data-text="Saving files" tabindex="-1">Saving files</h3> <p>When it comes to saving, the go-to approach is to use the <a href="/file-system-access">File System Access API</a>, so you end up with a <code translate="no" dir="ltr">FileSystemFileHandle</code>, which allows you to implement a true <a href="/articles/excalidraw-and-fugu#saving_files">save, edit, save flow</a>. The next best thing is to fall back to a classic <code translate="no" dir="ltr"><a download></code>, which likewise lets the user save data, but has the downside of creating new files on each download, so they end up with <code translate="no" dir="ltr">my-video.mp4</code>, <code translate="no" dir="ltr">my-video (1).mp4</code>, <code translate="no" dir="ltr">my-video (2).mp4</code>, etc.</p> <h3 id="pasting_images" data-text="Pasting images" tabindex="-1">Pasting images</h3> <p>To conclude the introductory examples, not all browsers support pasting images into a web app, so you can fall back to using the Drag and Drop API or showing a file picker, which is not as elegant as the <a href="/articles/async-clipboard">Async Clipboard API</a>, but at least it works.</p> <h2 id="the_new_patterns" data-text="The new patterns" tabindex="-1">The new patterns</h2> <p>With this out of the way, the new pattern sections are:</p> <h3 id="clipboard_patterns" data-text="Clipboard patterns" tabindex="-1">Clipboard patterns</h3> <p><a href="/patterns/clipboard">Clipboard patterns</a> for everything concerned with the system clipboard like copying and pasting of all sorts of things.</p> <p><img src="/static/blog/new-patterns-for-amazing-apps/image/eWdb4ici0H9p8tueeUUG.svg" alt width="200" height="200"></p> <h3 id="files_patterns" data-text="Files patterns" tabindex="-1">Files patterns</h3> <p><a href="/patterns/files">Files patterns</a> for everything concerned with files and directories; be it saving, opening, dragging and dropping, receiving or sharing.</p> <p><img src="/static/blog/new-patterns-for-amazing-apps/image/Smch2ZFw5PxkiQZPkl3v.svg" alt width="200" height="200"></p> <h3 id="web_apps_patterns" data-text="Web apps patterns" tabindex="-1">Web apps patterns</h3> <p><a href="/patterns/web-apps">Web apps patterns</a> for everything concerned with advanced app features like providing app shortcuts, periodically syncing data in the background, showing app badges, and many more.</p> <p><img src="/static/blog/new-patterns-for-amazing-apps/image/Yyuu9Wob0ix4z2jgBY1S.svg" alt width="200" height="200"></p> <h2 id="feedback" data-text="Feedback" tabindex="-1">Feedback</h2> <p>I hope these patterns will help you build amazing apps, and I'm looking forward to your feedback! You can provide feedback by tweeting at <a href="https://twitter.com/ChromiumDev">@ChromiumDev</a> or <a href="https://github.com/GoogleChrome/web.dev/issues/new/choose">filing an Issue</a>. In both cases, tag <code translate="no" dir="ltr">@tomayac</code> to make sure I see it.</p> <h2 id="acknowledgements" data-text="Acknowledgements" tabindex="-1">Acknowledgements</h2> <p>I'm grateful to <a href="https://github.com/jpmedley">Joe Medley</a> for his help with reviewing and editing the patterns. Thanks to <a href="https://github.com/petele">Pete LePage</a>, <a href="https://twitter.com/devnook">Ewa Gasperowicz</a>, <a href="https://twitter.com/rachelandrew">Rachel Andrew</a>, <a href="https://www.linkedin.com/in/kenpascal/">Ken Pascal</a>, and <a href="https://twitter.com/matthiasrohmer">Matthias Rohmer</a> for all their technical and organizational support and encouragements to land this. The entire patterns project would not have been possible without the help of the authors of the individual patterns, namely <a href="https://www.harrytheo.com/">Harry Theodoulou</a>, <a href="/authors/conwayt">Tony Conway</a>, <a href="/authors/pliao">Palances Liao</a>, <a href="/authors/chuijun">Cecilia Cong</a>, <a href="https://github.com/beaufortfrancois">François Beaufort</a>, and <a href="https://github.com/jpmedley">Joe Medley</a>.</p> </div> <devsite-thumb-rating position="footer"> </devsite-thumb-rating> <div class="devsite-floating-action-buttons"> </div> </article> <devsite-content-footer class="nocontent"> <p>Except as otherwise noted, the content of this page is licensed under the <a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 License</a>, and code samples are licensed under the <a href="https://www.apache.org/licenses/LICENSE-2.0">Apache 2.0 License</a>. 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