Upgrade to Pro — share decks privately, control downloads, hide ads and more …
Sign up for free

React と 画像

Avatar for ymrl ymrl
March 11, 2016
Programming
1.5k
0

React と 画像

途中で出てくるデモはこちらです http://ymrl.github.io/lgtm-editor/

Avatar for ymrl

ymrl

March 11, 2016

More Decks by ymrl

See All by ymrl
たのしいtable / Fun table
Avatar for ymrl ymrl
0
31
freeeのアクセシビリティの現在地 / freee's Current Position on Accessibility
Avatar for ymrl ymrl
4
1.6k
全社でアクセシビリティに取り組む / Company-wide Accessibility Initiatives
Avatar for ymrl ymrl
1
990
デザイナーがTSKaigiでWAI-ARIAの話をしてみて / Speaking as a Designer: WAI-ARIA at TSKaigi
Avatar for ymrl ymrl
0
730
TypeScriptとReactで、WAI-ARIAの属性を正しく利用する / Fixing WAI-ARIA Typing in React with TypeScript
Avatar for ymrl ymrl
1
980
がんばらないアクセシビリティ / Accessibility Without the Struggle
Avatar for ymrl ymrl
0
1.1k
Webサイトのアクセシビリティにどう向き合う？ / How Should We Approach Web Accessibility?
Avatar for ymrl ymrl
0
190
いま求められるソフトウェアのアクセシビリティ / Essential Accessibility in Software Today
Avatar for ymrl ymrl
1
1.7k
アクセシビリティを意識したプロダクトづくり / Creating Products with Accessibility in Mind
Avatar for ymrl ymrl
0
24k

Other Decks in Programming

See All in Programming
iOSDC2026登壇資料.pdf
Avatar for RioFujimon riofujimon
0
170
スマートフォンでモールス信号を送受信する 〜スマートフォンのLEDとカメラで作る光通信の設計と実装〜
Avatar for Atsuki Seo atsuki_seo
0
160
thread_parallel_with_free-threaded_Python_and_NumPy.pdf
Avatar for Riku Sakamoto riku_sakamoto
0
350
MVNOの申込からeSIM開通までをiOSアプリでつなぐ- 本人確認・MNP・通信事業者基盤をまたぐ実装
Avatar for Sato Takeshi satotakeshi
0
450
Starting & Sustaining Code-Based E2E Testing for Non-Coding QA Teams( #jasstniigata )
Avatar for teyamagu teyamagu
PRO
1
490
Jetpack Compose メカニズム
Avatar for Jaewoong skydoves
0
460
UnityでSystem.Net.WebSocketsなWebSocketサーバが動かないのでUnity Monoのコードを覗いてみた / about implementing websocket server with unity mono
Avatar for にー兄さん drumath2237
1
280
モデルのリファクタリングが難しいと思ったら、そもそも複雑だったのはビジネス仕様だった ? / is-the-business-domain-the-real-complexity
Avatar for hatsu hatsu38
0
380
【高い買い物LT会】初任給で話題の国産フィジカルAIを買った話
Avatar for 赤神青空 akagami
PRO
0
160
AWS DevOps Agentで インシデント対応をAIに任せたい
Avatar for HonMarkHunt honmarkhunt
7
3.1k
更なる可用性を求めて、5年間運用したKotlinのアプリケーションをGoでリプレイスする話
Avatar for Kensuke Taguchi ken_tunc
0
330
FreeBSDでZabbixを動かす
Avatar for kenkino kenkino
0
310

Featured

See All Featured
The Illustrated Children's Guide to Kubernetes
Avatar for Chris Short chrisshort
51
53k
Data-driven link building: lessons from a $708K investment (BrightonSEO talk)
Avatar for Szymon Słowik szymonslowik
1
1.3k
Designing Powerful Visuals for Engaging Learning
Avatar for Mike Taylor tmiket
1
570
Put a Button on it: Removing Barriers to Going Fast.
Avatar for kastner kastner
60
4.6k
Designing for Timeless Needs
Avatar for Cassini Nazir cassininazir
1
480
ラッコキーワード サービス紹介資料
Avatar for ラッコ株式会社 rakko
1
5M
Thoughts on Productivity
Avatar for Jon Yablonski jonyablonski
76
5.4k
Sam Torres - BigQuery for SEOs
Avatar for Tech SEO Connect techseoconnect
PRO
0
540
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
Avatar for Addy Osmani addyosmani
10
1.3k
What’s in a name? Adding method to the madness
Avatar for The Alliance productmarketing
PRO
24
4.2k
CSS Pre-Processors: Stylus, Less & Sass
Avatar for Bermon Painter bermonpainter
360
31k
Design of three-dimensional binary manipulators for pick-and-place task avoiding obstacles (IECON2024)
Avatar for konakalab konakalab
0
600

Transcript

  1. Reactͱը૾ Gotanda.js #3 @ymrl

  2. ςΩετ ࣗݾ঺հ ▸ @ymrl (Twitter, GitHub, etc…) ▸ freeeͱ͍͏ձࣾͰڅ༩ܭࢉαʔϏεΛ࡞͍ͬͯ·͢

  3. ςΩετ LGTMize ▸ 1೥΄Ͳલʹࡶʹ࡞ͬͨChrome֦ு ▸ ը૾΍ϏσΦΛӈΫϦοΫͯ͠LGTMͬͯจࣈΛࡌͤͯอଘ ▸ ࣾ಺ͷԁ׈ͳίϛϡχέʔγϣϯʹʢݸਓతʹ͸ʣศར

  4. http://bylines.news.yahoo.co.jp/kohyoungki/20151012-00050386/

  5. ςΩετ Canvasཁૉ ▸ ͍ΘΏΔHTML5ͷՖܗͬΆ͍΍ͭ ▸ 2࣍ݩϏοτϚοϓը૾͕ѻ͑Δ ▸ ศརͳΑ͏Ͱ͚ͬ͜͏໘౗͍͘͞ ▸ ྑ͘΋ѱ͘΋ϏοτϚοϓ

  6. react-canvas

  7. ςΩετ react-canvas ▸ ReactͰը૾͕࡞ΕΔͧʂʂʂ ▸ Textͱ͔Imageͱ͔Layerͱ͔࢖ͬͯը૾࡞ΕΔ ▸ CSSͬΆ͍ObjectΛ౉ͯ͠ελΠϧΛௐ੔ ▸ ຊདྷ͸ߴ଎ͳಈ࡞ͷUIΛ࡞ΔͨΊʹ࡞ΒΕͨͬΆ͍งғؾ

    ▸ mouse/touchܥΠϕϯτ΋͍͔࣮ͭ͘૷͞ΕͯΔ
  8. None
  9. None

  10. DEMO

  11. إೝࣝ

  12. إʹจࣈ͕͔͔ Δͷ͸ආ͚͍ͨ

  13. ςΩετ ccv ▸ CݴޠͷϥΠϒϥϦ͚ͩͲJSʹҠ২͞ΕͯΔ ▸ إೝࣝͰ͖Δ ▸ Web Worker࢖͑Δʢ࢖ͬͯͳ͍ʣ ▸

    npmͱ͔ීٴͯ͠ͳ͍ࠒͷϒπͳͷͰద౰ʹམͱ͖ͯͨ͠ ϑΝΠϧΛ഑ஔͯ͠࢖͏

  14. http://www.asahi.com/articles/ASHB75GGFHB7UTFK00G.html

  15. http://www.asahi.com/articles/ASHB75GGFHB7UTFK00G.html

  16. None
  17. None

  18. ςΩετ إΛආ͚Δ ▸ ݩͷը૾͔ΒإͷҐஔͰۣܗΛ੾͍ͬͯͬͨ࢒Γͷ͏ͪ
 Ұ൪޿͍৔ॴʹ഑ஔ ▸ ReactCanvasͷϊʔυΛ౉͢ͱനࠇԽ͞Εͯ͠·ͬͨΓ͢Δ ▸ ͍ͬͯ͏͔͜Ε͋Μ·ΓReactؔ܎ͳ͍ ▸

    ؾܰʹCanvasΛॻ͖௚ͤΔͷ͸ྑ͍

  19. GIF

  20. animated GIF

  21. ςΩετ gif ▸ Canvasཁૉʹॻ͖ग़͢ͱ1ίϚ໨ ▸ toDataURL() Ͱ͖ͳ͍ ▸ ʢαϒϚϦϯಛڐͬͯͲ͏ͳͬͨΜͰ͚ͨͬ͠ʣ

  22. ςΩετ readwrite-gif ▸ EncoderͱDecoder͕ೖͬͯΔ ▸ 1ίϚͣͭImageDataͰಡΈग़ͤͨΓ͢Δ ▸ Encoder͸ gif.jsify ͷ΄͏͕ଟػೳ͔΋……

    ▸ ίϚ͝ͱʹ௕͞Λม͑ͨΓͰ͖ͦ͏

  23. GIF ΛಡΉ

  24. None
  25. None

  26. ࠶ੜ

  27. None

  28. શϑϨʔϜඳը
 ͠ͳ͖Όμϝ

  29. None

  30. ग़ྗ

  31. ςΩετ શϑϨʔϜͷը૾σʔλ͕΄͍͠ ▸ setState()ͰϑϨʔϜΛ1ͭͣͭඳը͍ͯ͘͠ͷ͸೉͍͠ ▸ ࠶ඳըͷλΠϛϯά͕Α͘Θ͔Βͳ͍ ▸ ࠶ੜ͠ͳ͕Βඳը݁ՌΛอଘ͚ͯ͠͹Α͍ͷͰ͸ʁ ▸ componentDidUpdate

    Ͱద౰ʹಥͬࠐΜͰ͍͘
  32. None
  33. None

  34. ͳΜͱ͔ग़ͤΔΑ ͏ʹ͸ͳͬͨͧ

  35. ςΩετ ·ͱΊ ▸ animated GIFͷ૬खΛ͢Δͷ͸ͭΒ͍

  36. ͝ਗ਼ௌ͋Γ͕ͱ ͏͍͟͝·ͨ͠