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[web] Implement the glue code for ICU-less CanvasKit #118801

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flutter/engine
#39592
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[web] Implement the glue code for ICU-less CanvasKit#118801
flutter/engine
#39592
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mdebbar
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P1High-priority issues at the top of the work lista: sizeReducing IPA/APK/JS sizesa: typographyText rendering, possibly libtxte: web_canvaskitCanvasKit (a.k.a. Skia-on-WebGL) rendering backend for Webperf: app sizePerformance issues related to app size (binary/code size) or disk spaceplatform-webWeb applications specifically
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@mdebbar
mdebbar
opened on Jan 19, 2023

The ICU-less build of CanvasKit needs 4 pieces of information from us:

  1. Line breaks: from v8BreakIterator (only available in Chromium).
  2. Word boundaries: from Intl.Segmenter (available in all browsers except Firefox).
  3. Grapheme boundaries: from Intl.Segmenter (available in all browsers except Firefox).
  4. Bidi regions: from ICU4X (not available in any browser).

The glue code for providing the above information to CanvasKit needs to be implemented in the flutter web engine.

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P1High-priority issues at the top of the work lista: sizeReducing IPA/APK/JS sizesa: typographyText rendering, possibly libtxte: web_canvaskitCanvasKit (a.k.a. Skia-on-WebGL) rendering backend for Webperf: app sizePerformance issues related to app size (binary/code size) or disk spaceplatform-webWeb applications specifically

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