issue:#126652
in Chinese text, word length is 1 and (position.offset == word.end) happens a lot.
Update if (position.offset >= word.end) to if (position.offset > word.end) to resolve the issue that Chinese characters are not selected.
This PR fixes inconsistency of SelectionArea when scrolling by removing the `_clearSelection` on `longPressUpdate` gesture. This in turn makes the selection UX much better.
*List which issues are fixed by this PR. You must list at least one issue.*
Fixes: https://github.com/flutter/flutter/issues/120892
*If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].*
I intend to edit `toBeginningOfSentenceCase`'s return value to be non-nullable because it really is never null. That will mean that non-null asserts around it will become flagged as unnecessary, although right now they are necessary. So, apply a workaround - instead use a function that does a non-null assert without triggering any lints even after it becomes unnecessary.
Flutter web uses requireJS in `debug` mode to assemble a DDC-compiled app from a bunch of small files ("modules").
This caused that `canvaskit.js` (and all other modules that used a browserify-like loading header) didn't work because they attempted to use the `define` function provided by Flutter's instance of `requireJS` (which kept the defined modules private, rather than as globals on the page, as the users of the JS expected).
A [fix](https://github.com/flutter/engine/pull/27342) was added to `flutter/engine` to trick loaders into *not* using the `requireJS` module loader, but a recent change in the fix's js-interop layer *subtly* changed its JS output on the page (objects went from `undefined` to `null`), causing this:
* https://github.com/flutter/flutter/issues/126131 (and others)
This PR hides a bit of code that is commonly used by module loaders to decide that they may use the `define` function provided by requireJS (so the engine workaround can be removed).
## Next steps
* https://github.com/flutter/engine/pull/42941
## Issues
Partially addresses: https://github.com/flutter/flutter/issues/126131 (and others)
## Tests
* Added a unit test to ensure the `delete` stays
* Manually tested with the Gallery app in `debug` mode with a bunch of user-supplied scripts that currently fail to load.
* Also tested hot restart as suggested by @nshahan
`_TapStatusTrackerMixin` used by `BaseTapAndDragGestureRecognizer` should wait until the next tap down before resetting its state when the `_consecutiveTapTimer` times out. This is because `BaseTapAndDragGestureRecognizer` may not have fired its tap down/tap up event before the state has been reset preventing it from firing the tap down/tap up callbacks at all because `currentDown` and `currentUp` are reset to `null`.
Fixes#129161
Prevent the cli from crashing when a user selects a number that is not valid for `flutter run` device selection
Fixes issue:
- https://github.com/flutter/flutter/issues/129191
*If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].*
## FlutterTimeline
Add a new class `FlutterTimeline` that's a drop-in replacement for `Timeline` from `dart:developer`. In addition to forwarding invocations of `startSync`, `finishSync`, `timeSync`, and `instantSync` to `dart:developer`, provides the following extra methods that make is easy to collect timings for code blocks on a frame-by-frame basis:
* `debugCollect()` - aggregates timings since the last reset, or since the app launched.
* `debugReset()` - forgets all data collected since the previous reset, or since the app launched. This allows clearing data from previous frames so timings can be attributed to the current frame.
* `now` - this was enhanced so that it works on the web by calling `window.performance.now` (in `Timeline` this is a noop in Dart web compilers).
* `collectionEnabled` - a field that controls whether `FlutterTimeline` stores timings in memory. By default this is disabled to avoid unexpected overhead (although the class is designed for minimal and predictable overhead). Specific benchmarks can enable collection to report to Skia Perf.
## Semantics benchmarks
Add `BenchMaterial3Semantics` that benchmarks the cost of semantics when constructing a screen full of Material 3 widgets from nothing. It is expected that semantics will have non-trivial cost in this case, but we should strive to keep it much lower than the rendering cost. This is the case already. This benchmark shows that the cost of semantics is <10%.
Add `BenchMaterial3ScrollSemantics` that benchmarks the cost of scrolling a previously constructed screen full of Material 3 widgets. The expectation should be that semantics will have trivial cost, since we're just shifting some widgets around. As of today, the numbers are not great, with semantics taking >50% of frame time, which is what prompted this PR in the first place. As we optimize this, we want to see this number improve.
This change updates `SelectableRegion`s right-click gesture to match native platform behavior.
Before: Right-click gesture selects word at position and opens context menu (All Platforms)
After:
- Linux, toggles context menu on/off, and collapses selection when click was not on an active selection (uncollapsed).
- Windows, Android, Fuchsia, shows context menu at right-clicked position (unless the click is at an active selection).
- macOS, toggles the context menu if right click was at the same position as the previous / or selects word at position and opens context menu.
- iOS, selects word at position and opens context menu.
This change also prevents the `copy` menu button from being shown when there is a collapsed selection (nothing to copy).
Fixes#117561
Refactor the globals getter for `Analytics` to be in the context instead of having a default fallback. The current state of the tool creates a new instance every time `globals.analytics` was called
Addresses issue:
- https://github.com/flutter/flutter/issues/128535
This is a second attempt to merge #107269. Currently I've fixed two of the issues:
1. Fixed horizontal scrollview by using a switch statement to consider vertical/horizontal case.
2. Fixed issue of `paintExtent` not being the right extent for painting. Rather using a `scrollExtent` for the main axis length of the decoration box and painting it offsetted by the `scrollOffset`.
3. If the sliver child has inifinite scrollExtent, then we only draw the decoration down to the bottom of the `cacheExtent`. The developer is expected to ensure that the border does not creep up above the cache area.
This PR includes a test that checks that the correct rectangle is drawn at a certain scrollOffset for both the horizontal and vertical case which should be sufficient for checking that `SliverDecoration` works properly now.
Fixes https://github.com/flutter/flutter/issues/107498.
This PR changes the `PreferredSize` constructor parameter positioning to cover the constructor invocations. It helps on auto-complete and suggestion.
*List which issues are fixed by this PR. You must list at least one issue.*
Fixes#128178
This PR fixes issue of duplicate entries from `xcdevice list` cause devices to not show in `flutter devices`, `flutter run`, etc.
When a duplicate entry is found, use the entry without errors as the authority. If both have errors, use the one with the higher SDK as the authority.
Fixes https://github.com/flutter/flutter/issues/128719.
The `getIsolate` method returns the full list of libraries which can be huge for large apps. Using the more speficic API to only fetch what we need improves hot reload performance.
*Replace this paragraph with a description of what this PR is changing or adding, and why. Consider including before/after screenshots.*
*List which issues are fixed by this PR. You must list at least one issue.*
*If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].*
This PR is to add **controller** property to the **Stepper** widget, so
that user has the flexibility to control the scroll offset for various
purposes(especially in case of scroll animations)!
Fixes#61207
Co-authored-by: Taha Tesser <tessertaha@gmail.com>
The file was becoming harder to deal with as it manually sets up a /lib/l10n directory with a `MemoryFileSystem` in every single test. This PR wraps this process in a helper function `setupLocalizations` and also provides a helper function `getGeneratedFileContent` which helps fetch the respective output file given the locale string.
When building the new SDK DAPs, this functionality was missed from the Flutter adapter (but added to the Dart CLI adapter).
As well as passing a VM Service URI directly, we support passing a file that can be polled for it.
This uses the same mechanism we use to obtain the VM Service URI from a Dart debug session (we run `dart --write-service-info=foo.json my_file.dart` and then poll that file which the VM will write) and is useful for users that have their own mechanism for launching an app (for example using custom Flutter embedders - see https://github.com/Dart-Code/Dart-Code/issues/3353) to provide a VM Service URI once the app is up and running.
Fixes https://github.com/Dart-Code/Dart-Code/issues/4577.
Previously, when the code contained `const HtmlElementView()` it would break even if it's guarded by `if (kIsWeb)`.
This PR makes it such that `const HtmlElementView()` is allowed but it still throws if it gets inserted into the widget tree by mistake on non-web platforms.
One improvement we can make in the future is to have a conditional import:
- `_html_element_view_web.dart` that contains the real `HtmlElementView` that can only be instantiated on web.
- `_html_element_view_io.dart` that contains a stub with an unimplemented `build()` method.
Fixes https://github.com/flutter/flutter/issues/43532
