31226 Commits

Author SHA1 Message Date
Hannah Jin
ed19f47bec
Add blockAccessibilityFocus flag (#175551)
Add a new flag for a11y focusable

- Accessibility focus, which is the focus used by screen readers like
TalkBack and VoiceOver, is different from input focus.
- Our current logic use some existing flags to decide if a node is
accessibilty focusable. like "if it's a slider / has a check state / has
keyboard focus/..., then it's a11y focusable"
ecbb115ae3/engine/src/flutter/shell/platform/android/io/flutter/view/AccessibilityBridge.java (L98)
- but we lack the ability to explicitly set a node to be unfocusable in
a11y!
- This flag can be used to explicitly set some semantics nodes to be
unfocusable in a11y mode. if it is false, we fall back to the logic "if
it's a slider / has a check state / has keyboard focus/..., then it's
a11y focusable"

future use case 1:
user can set live region to be not focusable, so when content changes,
it will still announce, but the content can't be focused by swiping.
future use case 2:
when pushing a new route like a dialog, setting the semantics nodes in
old pages to be un focusable.




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2025-11-03 22:18:33 +00:00
Kaylee Lubick
aed2e42321
[skia] Explicitly disable XPS backend (#177050)
Skia's working on some breaking changes to the XPS backend. Flutter does
not use this backend explicitly, but it is being compiled in on Windows
builds. We can explicitly disable it all the time to avoid any
unexpected breakages from impacting Flutter.

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2025-11-03 20:35:41 +00:00
Andrew Marshall
a642eddae1
fix(impeller): fix params to glDiscardFrameBufferEXT (#175589)
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Fix parameters to
[glDiscardFramebufferEXT](https://registry.khronos.org/OpenGL/extensions/EXT/EXT_discard_framebuffer.txt)
when an application-defined framebuffer is bound. The `is_default_fbo`
parameter is set to `true` if `color_gles.IsWrapped()` is true, however
according to the GLES spec, a non-default framebuffer is bound if
`glBindFramebuffer(GL_FRAMEBUFFER, framebuffer)` is called with
`framebuffer != 0`:

> _The namespace for framebuffer objects is the unsigned integers, with
zero re-
served by OpenGL ES to refer to the default framebuffer. A framebuffer
object
is created by binding an unused name to the target FRAMEBUFFER._ 

To reproduce this issue, run a flutter application with
`--enable-impeller` on a platform where `glDiscardFramebufferEXT` is
available. The following error is reported:

```
[FATAL:flutter/impeller/renderer/backend/gles/proc_table_gles.h(43)] Fatal GL Error GL_INVALID_ENUM(1280) encountered on call to glDiscardFramebufferEXT
```

*List which issues are fixed by this PR. You must list at least one
issue. An issue is not required if the PR fixes something trivial like a
typo.*

closes #175588 

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2025-11-03 19:13:27 +00:00
chunhtai
bcd359d746
wires up set application locale to web engine (#177284)
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fixes https://github.com/flutter/flutter/issues/98948

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2025-11-03 18:42:26 +00:00
Jason Simmons
633d6591a1
[Impeller] Fix the source rectangle used when rendering an AtlasContents with the strict mode for nine-patch images (#177860)
* Convert the source rectangle to texture coordinates and shrink it to
adjust for linear filtering
* Pass the coordinates of the rectangle in the order expected by the
Porter-Duff shader

Fixes https://github.com/flutter/flutter/issues/176544
2025-11-03 15:38:15 +00:00
Zachary Anderson
590a783995
[engine,build] Fix Fuchsia RBE build (#177865)
As in the Dart build here:


fc8b3d7927/build/toolchain/fuchsia/fuchsia_toolchain.gni (L24)

For unknown reasons, the `__config_site` file has to be explicitly
listed as an input to the build to ensure it is available in the RBE
workers.

This PR also cleans up unnecessary flags from the Fuchsia toolchain
definition. The target triple and sysroot flags are already injected
into the compiler flags by the Fuchsia build configs.

linux_fuchsia presub ran in 16 minutes.
2025-11-02 00:05:24 +00:00
Pierre
f234d26926
Clean up links to docs website (#177792)
- remove link without use (PowerShell version minimum not reached, this
is not mentionned anywhere in Windows installation / troubleshooting
documentation)
- clean up API docs root
- clean up app template links, add `Learn Flutter` link
- update get started links
- replace `flutter.dev/docs` with `docs.flutter.dev`
- fix embedder descriptions
- fix broken API `docs.flutter.io` links
- http → https 
- remove `/install` from `/get-started` links
- fix Android Studio link

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---------

Co-authored-by: Parker Lougheed <parlough@gmail.com>
2025-11-01 18:38:27 +00:00
ColdPaleLight
290d0f87a9
Fix cubic subdivision estimation using correct Wang’s formula (#177758)
Replaced the incorrect Abs()/Max() operations with squared magnitude
checks via dot products
2025-10-31 10:52:25 +00:00
Jason Simmons
8dd2a072ca
Update the path used by the download_fuchsia_sdk.py script to //third_party/fuchsia-sdk (#177794)
See https://github.com/flutter/flutter/pull/177118
2025-10-30 22:58:33 +00:00
gaaclarke
c089837469
Fixes RuntimeEffect when used with ImageFilter.compose and gaussian blur (#177687)
fixes https://github.com/flutter/flutter/issues/170820
fixes https://github.com/flutter/flutter/issues/177611

This PR snapshots the input of a runtimeeffect if its transform is not
identity. This fixes the cases where we use compose with the runtime
effect and the inner effect evaluates to a snapshot that doesn't match
the size of x, such as`runtime_effect(blur(x))`. Blur will perform at
lower resolutions when the sigma is high as an optimization. Blur also
adds a halo around what it is blurring. Previously we could optimize
away this extra render pass when we assumed that the coverage of
inner(x) was the same as x (but potentially just translated), but we
can't do that in practice because of things like gaussian blur.

In order to make this PR work we had to come up with a way to disable
the extra padding that is added to every `RenderToSnapshot`. This is
because users want to to reference specific fragments. The extra border
of padding would increase the texture size of inner(x) and x which
created a jump in the locations calcuated in the fragment shaders when
the inner snapshot's transform would jump from identity to non-identity.
The only other alternative would be to pass in the offset to the
fragment shader but that would be a breaking change.

In order to get the shaders rendering in the right orientation on
opengles I had to switch the shaders to do a `uv.y = 1.0 - uv.y`. This
is in the documentation for ImageFilter.shader but it is an annoying
gotcha. Hopefully this doesn't break someone if the logic was different
previously for ImageFilter.compose but this is the correct thing to do
and since it wasn't tested, there is no breaking change.

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2025-10-30 21:39:11 +00:00
auto-submit[bot]
6a5a918002
Reverts "Update .ci.yaml in flutter/flutter to use 15.5 (#177669)" (#177793)
<!-- start_original_pr_link -->
Reverts: flutter/flutter#177669
<!-- end_original_pr_link -->
<!-- start_initiating_author -->
Initiated by: vashworth
<!-- end_initiating_author -->
<!-- start_revert_reason -->
Reason for reverting: Not all devicelab bots are on Mac 15.5

<!-- end_revert_reason -->
<!-- start_original_pr_author -->
Original PR Author: okorohelijah
<!-- end_original_pr_author -->

<!-- start_reviewers -->
Reviewed By: {mdebbar, vashworth}
<!-- end_reviewers -->

<!-- start_revert_body -->
This change reverts the following previous change:
Update .ci.yaml in flutter/flutter to use 15.5

*List which issues are fixed by this PR. You must list at least one
issue. An issue is not required if the PR fixes something trivial like a
typo.*

Fixes #177394

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link to the migration guide as per the [breaking change policy].*

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Co-authored-by: auto-submit[bot] <flutter-engprod-team@google.com>
2025-10-30 20:21:39 +00:00
Camille Simon
f5580933d8
Fixes SettingsChannelTest flake (#177061)
Fixes `SettingsChannelTest` failure that occurs when other Android
embedding tests touch the singleton queue that the `SettingsChannel`
manages.

Instead of the test making assertions based on the theoretical
generation number of `SentConfiguration`s added to the queue, the
assertions are isntead made relative to the exaction generation number
of those `SentConfiguration`s.

Fixes https://github.com/flutter/flutter/issues/176413. I tested this
fix in https://github.com/flutter/flutter/pull/175937; an example
passing build:
https://ci.chromium.org/ui/p/flutter/builders/try/Linux%20Engine%20Drone/3641486/overview.

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2025-10-30 19:29:10 +00:00
gaaclarke
2c9e69f0db
Implements uniform-by-name for web (#176980)
fixes https://github.com/flutter/flutter/issues/176417 (for web)

Now on the web the `FragmentShader.getUniformFloat(String name, [int?
index])` can be used.

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2025-10-30 19:14:37 +00:00
Elijah Okoroh
fdeb7f5a6e
Update .ci.yaml in flutter/flutter to use 15.5 (#177669)
Update .ci.yaml in flutter/flutter to use 15.5

*List which issues are fixed by this PR. You must list at least one
issue. An issue is not required if the PR fixes something trivial like a
typo.*

Fixes #177394

*If you had to change anything in the [flutter/tests] repo, include a
link to the migration guide as per the [breaking change policy].*

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---------

Co-authored-by: Mouad Debbar <mdebbar@google.com>
2025-10-30 18:43:07 +00:00
Jason Simmons
8834b42dff
[Impeller] Fall back to OpenGL ES on older Adreno GPUs (#177747)
These GPUs require additional flags in WorkaroundsVK that affect key
features used by the Vulkan back end such as framebuffer fetch. The
OpenGL ES back end will likely be more reliable on these devices.

Fixes https://github.com/flutter/flutter/issues/177380
2025-10-30 18:41:11 +00:00
gaaclarke
29e46fa49b
impeller: allow setting image sampler uniforms by name (#176749)
follow up to https://github.com/flutter/flutter/pull/176728 which allows
setting image samplers too.

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2025-10-30 00:38:26 +00:00
Gray Mackall
bba912ef87
Copy symlinks when creating android cipd package, and update to package w/ symlinks (#177638)
`cp -r` isn't [well
defined](https://unix.stackexchange.com/questions/18712/difference-between-cp-r-and-cp-r-copy-command),
but on my mac (and probably on the other android team members macs) it
doesn't copy symlinks (instead it follows the symlink and copies the
file).

`cp -a` is well defined, and copies the symlinks. This will probably fix
https://github.com/flutter/flutter/issues/177286, the symlinks are there
for sure locally so it is just a question of if the upload process
tramples them. But it sounds like cipd supports this, so I imagine it
will fix the issue.

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---------

Co-authored-by: Gray Mackall <mackall@google.com>
2025-10-30 00:30:21 +00:00
Harry Terkelsen
bd2f9f4074
[web] Add GEMINI.md for web engine customizations (#177413)
Adds a `GEMINI.md` for the Flutter Web engine to assist Gemini code
assistant in building the web engine and running tests.

## Pre-launch Checklist

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2025-10-30 00:28:26 +00:00
Qun Cheng
ccf6466b14
Refactor OverlayPortal semantics (#173005)
Fixes https://github.com/flutter/flutter/issues/163576
Fixes https://github.com/flutter/flutter/issues/175184

This PR refactored the grafting part on `OverlayPortal`. Originally, the
semantics tree of `OverlayPortal` was constructed/grafted in render
object phase to make sure the correctness of the traversal order.
However this resulted wrong hit-test order and the issue surfaced on
web. With the fact that on web we are not able to graft/correct hit-test
order tree, this PR:
* Reverts the original grafting of the `OverlayPortal` so the hit-test
order is always correct.
* Then, we adds the grafting and updates the traversal order when we
send `childrenInTraversalOrder` to engine.
* Updating `childrenInTraversalOrder` causes it have different length
from the length of `childrenInHitTestOrder` and wrong hit-test transform
of the `OverlayPortal` children because when the transform is
calculated, it assumes a correct traversal order. To fix these issues,
this PR also:
  * recalculates the transform for `OverlayPortal` children.
  * adds `hitTestTransform` property and pass it to Android engine.
* skip grafting for web because it assumes the same length of
`childrenInTraversalOrder` and `childrenInHitTestOrder`.
* added grafting by using `ARIA-owns` in web engine to fix the traversal
order.

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
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- [x] I read the [Tree Hygiene] wiki page, which explains my
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we expect every widget to implement].
- [x] I signed the [CLA].
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[test-exempt].
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Fixes] where supported.
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2025-10-29 22:30:39 +00:00
Mouad Debbar
0afe64e86a
[web] Delete unused canvaskit utils (#177684)
Closes https://github.com/flutter/flutter/issues/73492
2025-10-29 22:27:44 +00:00
Jason Simmons
df55910093
Disable LTO in CI builder configurations for Linux targets (#177694)
See https://github.com/flutter/flutter/issues/177660
2025-10-29 22:23:10 +00:00
Mouad Debbar
53925c1283
[web] Move webparagraph tests to their right location (#177739)
Many failures happening in [`Linux linux_web_engine_tests

`](https://ci.chromium.org/ui/p/flutter/builders/luci.flutter.prod/Linux%20linux_web_engine_tests)
due to `ui/web_paragraph/font_collection_test.dart` being misplaced.

This PR moves the test file to the correct directory so it runs with the
correct test suite.
2025-10-29 20:42:49 +00:00
Camille Simon
83ce1845ec
[Android] Remove unecessary spy in FlutterActivityAndFragmentDelegateTest (#177120)
Title says it all :)

## Pre-launch Checklist

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2025-10-29 15:24:34 +00:00
Mouad Debbar
c065595842
[web] Deprecate --pwa-strategy (#177613)
- Hide the `--pwa-strategy` flag.
- Add deprecation note to the help text.
- Print deprecation warning if passed explicitly.

Towards https://github.com/flutter/flutter/issues/156910
2025-10-29 14:45:36 +00:00
jesswrd
125b1fba5a
[Gradle 9] Fix Engine Deps (#177623)
Fixed gradle 9 deprecation warning in engine. Most of the gradle files
in engine are from external third party libraries and do not affect
flutter's build.

Fixes https://github.com/flutter/flutter/issues/173321
Fixes https://github.com/flutter/flutter/issues/173318

## Pre-launch Checklist

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2025-10-28 22:27:09 +00:00
jesswrd
7f90a3be6f
[Android 16] Update Engine ci.yaml to test against Java 21 (#177677)
Last part of making sure engine is testing against java 21

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2025-10-28 22:05:15 +00:00
Matej Knopp
f4d77a17bb
Workaround for lag when dragging window titlebar on Windows (#177597)
Fixes https://github.com/flutter/flutter/issues/176480

*If you had to change anything in the [flutter/tests] repo, include a
link to the migration guide as per the [breaking change policy].*

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2025-10-28 19:42:59 +00:00
Andrew Marshall
e0ff789894
add gn flag to optimize builds for size (#176835)
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Adds a `gn` flag to optimize builds for size over speed when
optimization is requested. The existing behaviour is that Windows,
Android and iOS builds are always optimized for size. This has not
changed.

The flag allows other builds to prefer size over speed.

Closes #176685 

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2025-10-27 21:47:02 +00:00
Andrew Marshall
eb713a5fa8
disable metal for crosscompile from mac to linux (#176639)
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Disable metal support when cross compiling from mac to linux targets,
othewise build script generation fails.

Closes #176637

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2025-10-27 21:47:02 +00:00
Michael Goderbauer
cc743e404c
[DDM] enable host builds in the merge queue (#177446)
Follow-up to https://github.com/flutter/flutter/pull/177252.
Towards b/452833651.
Similar to https://github.com/flutter/flutter/pull/168233.

This changes the ddm host build to be part of the merge queue so they
are available on every commit because we want to use them for internal
testing and use them on CI internally.
2025-10-27 21:00:08 +00:00
Andrew Marshall
b28c40c972
Disable vulkan X11 support when building for minimal linux (#176697)
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Disables X11 support in vulkan if the `is_minimal_linux` flag is
enabled. This flag is for building for linux systems that may not have
the X11 libraries available.

Tested locally that this works with a sysroot where X11 is not
available.

Closes #176684 

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2025-10-27 20:22:09 +00:00
Jason Simmons
e090117bde
Set the font weight variation axis based on the text style's FontWeight (#175771)
This makes it possible for applications to set a FontWeight and get the
expected result for both variable fonts and fonts that provide separate
assets for each weight.

See https://github.com/flutter/flutter/issues/148026
2025-10-27 20:10:17 +00:00
gaaclarke
4fd66064d2
Fixed RuntimeEffect with ImageFilter.compose (#177510)
fixes https://github.com/flutter/flutter/issues/170973

This changes the math for drawing RuntimeEffect's so that it works with
`ImageFilter.compose`. Without this patch the `ComposePaintRuntimeInner`
would draw a cropped image.

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2025-10-27 20:08:38 +00:00
Kaylee Lubick
b5d2ed668b
[skia] Disable legacy png encoding/decoding in skp (#177462)
This removes an implicit coupling on core Skia and PNG
encoders/decoders. While flutter uses SkPictures, I don't believe it
ever serializes them (which would invoke the legacy code) so we
should be good to disable that (unused by Flutter) legacy path.

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2025-10-27 18:41:20 +00:00
Tong Mu
e09862d718
Fix RoundedSuperellipse crashes for tiny corners (#177070)
Fix https://github.com/flutter/flutter/issues/176894

I've verified that the original issue consistently reproduces on my
machine and no longer crashes after this PR.

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2025-10-27 17:08:12 +00:00
Loïc Sharma
8180ae0655
Add more docs to TextBaseline (#177507) 2025-10-24 23:43:14 +00:00
Mouad Debbar
37590335c4
[web] Use SkPathBuilder because SkPath is becoming immutable (#177343)
Skia is working on making `SkPath` immutable:
https://skia-review.googlesource.com/c/skia/+/1075478

In Flutter Web's CanvasKit renderer, we use `SkPath` as a mutable
object, which made the [Skia
roll](https://github.com/flutter/flutter/pull/177184) fail. To fix this,
we should start using `SkPathBuilder` instead.

Remaining work:
- [x] Figure out the deletion/disposal of `SkPath`s generated from
`.snapshot()` calls.
- [ ] `LazyPath` should be restructured to better accommodate a world of
immutable paths and path builders (coming in a future PR).
2025-10-24 19:32:31 +00:00
Jason Simmons
67068ee0fe
Roll Abseil to Chromium's 5b92b04a2e (based on Abseil commit fc4481e968) (#177059)
This also moves the Abseil sources from //flutter/third_party to
//third_party to allow use of Chromium's GN scripts without
modification.

See internal issue b/400498305
2025-10-24 14:22:29 +00:00
Jason Simmons
a771543deb
Change the root path of the license crawl to engine/src (#177352)
Previously the license script looked for licenses within the
engine/src/flutter tree. This PR updates the script to support the move
of Abseil and the Fuchsia SDK from engine/src/flutter to
engine/src/third_party.

See https://github.com/flutter/flutter/pull/177059 and
https://github.com/flutter/flutter/pull/177118
2025-10-23 22:24:01 +00:00
Loïc PÉRON
f01fa5950c
[Desktop] Propagate SemanticsNode::identifier to AXPlatformNodeDelegate::AuthorUniqueId (#175405)
Expose flutter Semantics.identifier as
AXPlatformNodeDelegate::AuthorUniqueId.
To be used for UI test automation through Windows AutomationId.

see https://github.com/flutter/flutter/issues/148763

followup to https://github.com/flutter/flutter/pull/161955

## Pre-launch Checklist

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2025-10-23 22:22:58 +00:00
zhongliugo
26766ac86d
Implements engine-side declarative pointer event handling for semantics. (#176974)
Implements engine-side declarative pointer event handling for semantics.

Framework-side to be implemented in next PR.

Fixes flutter/flutter#149001.

**Before change**
https://dialog-dismiss-before.web.app/

Click on the "Show Dialog" button.
Click anywhere inside the dialog that is not a form field.
Observe the dialog being dismissed. 

**After change**
https://dialog-dimiss-after.web.app/

Click on the "Show Dialog" button.
Click anywhere inside the dialog that is not a form field.
Observe the dialog not dismissed.
2025-10-23 21:11:52 +00:00
Kaylee Lubick
96fe3e27c7
Change Flutter APIs to use spans (#177272)
Some old APIs are currently guarded by `SK_SUPPORT_UNSPANNED_APIS` and
Skia plans to delete them (for example in this
[CL](https://skia-review.googlesource.com/c/skia/+/1073616)). This
updates Flutter calls to use the new APIs (by wrapping the pointers and
counts together) and removes the define to avoid backsliding.

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we expect every widget to implement].
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2025-10-23 19:08:18 +00:00
Matej Knopp
c52370113d
[macOS] Implement regular window (#176361)
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Co-authored-by: Matthew Kosarek <matt.kosarek@canonical.com>
2025-10-23 14:12:56 +00:00
engine-flutter-autoroll
0fcbdedaea
Roll ICU from 1b2e3e8a421e to ff35c4f9df23 (5 revisions) (#177434)
1b2e3e8a42..ff35c4f9df

2025-10-01 foolip@chromium.org [ICU 77] Update main from 74-2 to 77-1
2025-09-16 foolip@chromium.org Improve `diff_data.sh` robustness and
performance
2025-09-10 kojii@chromium.org Add comments to `diff_data.sh`
2025-08-27 kojii@chromium.org Fix `patch_locale.sh`
2025-08-13 foolip@chromium.org Extract brkitr/root.txt changes to
patches

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/icu-sdk-flutter
Please CC chinmaygarde@google.com,fuchsia-ui-discuss@google.com on the
revert to ensure that a human
is aware of the problem.

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2025-10-23 08:30:40 +00:00
Michael Goderbauer
073995192f
Adds a new CI build for Linux host DDM-enabled artifacts (#177252)
Work towards [b/452833651](b/452833651).

This adds a new flavor of linux_host_engine, which enables the DDM build
flag with the goal of building a flutter_tester binary that supports
loading DDMs in tests.

Tested locally via `et build --config ci/host_debug_ddm`.

This roughly follows https://github.com/flutter/flutter/pull/168717,
which added a similar DDM-enabled build for iOS.

I've branched this off the `linux_host_engine.json`, added the build
flag for DDM support, and removed things we don't need.
2025-10-23 07:17:38 +00:00
gaaclarke
1b85ba6734
Added ahem license (#177423)
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2025-10-23 02:42:24 +00:00
Robert Ancell
0f9144743b
Fix accessibility events not being correctly translated to ATK (#176991)
This was a regression introduced in
117c60edcf1f6843e71a8ff8107eb6c3d2af9041 which didn't correctly migrate
to the newer tristate a11y API.

Fixes https://github.com/flutter/flutter/issues/176360
2025-10-22 22:49:18 +00:00
Harry Terkelsen
c8102faf0b
Delete stray 'text' file (#177355)
A stray file was added to the repo in error. This PR deletes it.

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2025-10-22 17:12:47 +00:00
chunhtai
a1ac766b4a
Android treats link without URL semantics node as button (#176959)
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fixes https://github.com/flutter/flutter/issues/172982

fixes it in the android side in case Android provide an API to denote
link without URL in the future


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2025-10-22 16:42:17 +00:00
Jason Simmons
75004a639a
[Impeller] Add the paint color to the key of the text shadow cache (#177140)
Fixes https://github.com/flutter/flutter/issues/176146
2025-10-22 15:28:11 +00:00