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Incorporate compat info changes into flutter engine #19606

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Jul 10, 2020
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Incorporate compat info changes into flutter engine #19606

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2 changes: 2 additions & 0 deletions lib/web_ui/analysis_options.yaml
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Expand Up @@ -12,6 +12,8 @@ analyzer:
missing_required_param: warning
missing_return: warning
native_function_body_in_non_sdk_code: ignore
unnecessary_non_null_assertion: ignore
unnecessary_null_comparison: ignore
todo: ignore

linter:
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2 changes: 1 addition & 1 deletion lib/web_ui/lib/src/engine/assets.dart
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Expand Up @@ -64,7 +64,7 @@ class AssetManager {
.warn('Asset manifest does not exist at `$url` – ignoring.');
return Uint8List.fromList(utf8.encode('{}')).buffer.asByteData();
}
throw AssetManagerException(url, target.status);
throw AssetManagerException(url, target.status!);
}

html.window.console.warn('Caught ProgressEvent with target: $target');
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4 changes: 2 additions & 2 deletions lib/web_ui/lib/src/engine/bitmap_canvas.dart
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Expand Up @@ -364,7 +364,7 @@ class BitmapCanvas extends EngineCanvas {
}

html.ImageElement _reuseOrCreateImage(HtmlImage htmlImage) {
final String cacheKey = htmlImage.imgElement.src;
final String cacheKey = htmlImage.imgElement.src!;
if (_elementCache != null) {
html.ImageElement? imageElement = _elementCache!.reuse(cacheKey) as html.ImageElement?;
if (imageElement != null) {
Expand Down Expand Up @@ -674,7 +674,7 @@ class BitmapCanvas extends EngineCanvas {
for (int i = 0; i < len; i++) {
final String char = line.displayText![i];
ctx!.fillText(char, x, y);
x += letterSpacing + ctx.measureText(char).width;
x += letterSpacing + ctx.measureText(char).width!;
}
}
}
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2 changes: 1 addition & 1 deletion lib/web_ui/lib/src/engine/browser_detection.dart
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Expand Up @@ -115,7 +115,7 @@ OperatingSystem get operatingSystem {
OperatingSystem? debugOperatingSystemOverride;

OperatingSystem _detectOperatingSystem() {
final String platform = html.window.navigator.platform;
final String platform = html.window.navigator.platform!;
final String userAgent = html.window.navigator.userAgent;

if (platform.startsWith('Mac')) {
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4 changes: 2 additions & 2 deletions lib/web_ui/lib/src/engine/browser_location.dart
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Expand Up @@ -176,10 +176,10 @@ class BrowserPlatformLocation extends PlatformLocation {
}

@override
String get pathname => _location.pathname;
String get pathname => _location.pathname!;

@override
String get search => _location.search;
String get search => _location.search!;

@override
String get hash => _location.hash;
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4 changes: 2 additions & 2 deletions lib/web_ui/lib/src/engine/clipboard.dart
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Expand Up @@ -109,7 +109,7 @@ class ClipboardAPICopyStrategy implements CopyToClipboardStrategy {
@override
Future<bool> setData(String? text) async {
try {
await html.window.navigator.clipboard.writeText(text!);
await html.window.navigator.clipboard!.writeText(text!);
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Sounds like we no longer need to use _unsafeIsNull on line 95 to check for clipboard presence. Also, I imagine window.navigator.clipboard is a singleton, and so we can store it in a final non-null field, null check it in the initializer once, and remove the null assertions here and below.

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I think we still want to check whether it's null in order to determine what "Strategy" class to initialize, right?

I don't think clipboard can be made a singleton since _Clipboard is a private class (unless we declared the field as dynamic).

} catch (error) {
print('copy is not successful $error');
return Future.value(false);
Expand All @@ -127,7 +127,7 @@ class ClipboardAPICopyStrategy implements CopyToClipboardStrategy {
class ClipboardAPIPasteStrategy implements PasteFromClipboardStrategy {
@override
Future<String> getData() async {
return html.window.navigator.clipboard.readText();
return html.window.navigator.clipboard!.readText();
}
}

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6 changes: 3 additions & 3 deletions lib/web_ui/lib/src/engine/dom_renderer.dart
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Expand Up @@ -420,7 +420,7 @@ flt-glass-pane * {
// Firefox returns correct values for innerHeight, innerWidth.
// Firefox also triggers html.window.onResize therefore we don't need this
// timer setup for Firefox.
final int initialInnerWidth = html.window.innerWidth;
final int initialInnerWidth = html.window.innerWidth!;
// Counts how many times we checked screen size. We check up to 5 times.
int checkCount = 0;
Timer.periodic(const Duration(milliseconds: 100), (Timer t) {
Expand Down Expand Up @@ -534,10 +534,10 @@ flt-glass-pane * {
///
/// See w3c screen api: https://www.w3.org/TR/screen-orientation/
Future<bool> setPreferredOrientation(List<dynamic>? orientations) {
final html.Screen screen = html.window.screen;
final html.Screen screen = html.window.screen!;
if (!_unsafeIsNull(screen)) {
final html.ScreenOrientation screenOrientation =
screen.orientation;
screen.orientation!;
if (!_unsafeIsNull(screenOrientation)) {
if (orientations!.isEmpty) {
screenOrientation.unlock();
Expand Down
4 changes: 2 additions & 2 deletions lib/web_ui/lib/src/engine/keyboard.dart
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Expand Up @@ -89,7 +89,7 @@ class Keyboard {
event.preventDefault();
}

final String timerKey = keyboardEvent.code;
final String timerKey = keyboardEvent.code!;

// Don't synthesize a keyup event for modifier keys because the browser always
// sends a keyup event for those.
Expand Down Expand Up @@ -181,7 +181,7 @@ int _getMetaState(html.KeyboardEvent event) {
/// Modifier keys are shift, alt, ctrl and meta/cmd/win. These are the keys used
/// to perform keyboard shortcuts (e.g. `cmd+c`, `cmd+l`).
bool _isModifierKey(html.KeyboardEvent event) {
final String key = event.key;
final String key = event.key!;
return key == 'Meta' || key == 'Shift' || key == 'Alt' || key == 'Control';
}

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64 changes: 32 additions & 32 deletions lib/web_ui/lib/src/engine/pointer_binding.dart
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Expand Up @@ -257,13 +257,13 @@ mixin _WheelEventListenerMixin on _BaseAdapter {
_pointerDataConverter.convert(
data,
change: ui.PointerChange.hover,
timeStamp: _BaseAdapter._eventTimeStampToDuration(event.timeStamp),
timeStamp: _BaseAdapter._eventTimeStampToDuration(event.timeStamp!),
kind: ui.PointerDeviceKind.mouse,
signalKind: ui.PointerSignalKind.scroll,
device: _mouseDeviceId,
physicalX: event.client.x * ui.window.devicePixelRatio as double,
physicalY: event.client.y * ui.window.devicePixelRatio as double,
buttons: event.buttons,
buttons: event.buttons!,
pressure: 1.0,
pressureMin: 0.0,
pressureMax: 1.0,
Expand Down Expand Up @@ -444,23 +444,23 @@ class _PointerAdapter extends _BaseAdapter with _WheelEventListenerMixin {
@override
void setup() {
_addPointerEventListener('pointerdown', (html.PointerEvent event) {
final int device = event.pointerId;
final int device = event.pointerId!;
final List<ui.PointerData> pointerData = <ui.PointerData>[];
final _SanitizedDetails details =
_ensureSanitizer(device).sanitizeDownEvent(
button: event.button,
buttons: event.buttons,
buttons: event.buttons!,
);
_convertEventsToPointerData(data: pointerData, event: event, details: details);
_callback(pointerData);
});

_addPointerEventListener('pointermove', (html.PointerEvent event) {
final int device = event.pointerId;
final int device = event.pointerId!;
final _ButtonSanitizer sanitizer = _ensureSanitizer(device);
final List<ui.PointerData> pointerData = <ui.PointerData>[];
final Iterable<_SanitizedDetails> detailsList = _expandEvents(event).map(
(html.PointerEvent expandedEvent) => sanitizer.sanitizeMoveEvent(buttons: expandedEvent.buttons),
(html.PointerEvent expandedEvent) => sanitizer.sanitizeMoveEvent(buttons: expandedEvent.buttons!),
);
for (_SanitizedDetails details in detailsList) {
_convertEventsToPointerData(data: pointerData, event: event, details: details);
Expand All @@ -469,7 +469,7 @@ class _PointerAdapter extends _BaseAdapter with _WheelEventListenerMixin {
}, acceptOutsideGlasspane: true);

_addPointerEventListener('pointerup', (html.PointerEvent event) {
final int device = event.pointerId;
final int device = event.pointerId!;
final List<ui.PointerData> pointerData = <ui.PointerData>[];
final _SanitizedDetails? details = _getSanitizer(device).sanitizeUpEvent();
_removePointerIfUnhoverable(event);
Expand All @@ -482,7 +482,7 @@ class _PointerAdapter extends _BaseAdapter with _WheelEventListenerMixin {
// A browser fires cancel event if it concludes the pointer will no longer
// be able to generate events (example: device is deactivated)
_addPointerEventListener('pointercancel', (html.PointerEvent event) {
final int device = event.pointerId;
final int device = event.pointerId!;
final List<ui.PointerData> pointerData = <ui.PointerData>[];
final _SanitizedDetails details = _getSanitizer(device).sanitizeCancelEvent();
_removePointerIfUnhoverable(event);
Expand Down Expand Up @@ -512,13 +512,13 @@ class _PointerAdapter extends _BaseAdapter with _WheelEventListenerMixin {
assert(data != null); // ignore: unnecessary_null_comparison
assert(event != null); // ignore: unnecessary_null_comparison
assert(details != null); // ignore: unnecessary_null_comparison
final ui.PointerDeviceKind kind = _pointerTypeToDeviceKind(event.pointerType);
final ui.PointerDeviceKind kind = _pointerTypeToDeviceKind(event.pointerType!);
// We force `device: _mouseDeviceId` on mouse pointers because Wheel events
// might come before any PointerEvents, and since wheel events don't contain
// pointerId we always assign `device: _mouseDeviceId` to them.
final int device = kind == ui.PointerDeviceKind.mouse ? _mouseDeviceId : event.pointerId;
final int device = kind == ui.PointerDeviceKind.mouse ? _mouseDeviceId : event.pointerId!;
final double tilt = _computeHighestTilt(event);
final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp);
final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp!);
_pointerDataConverter.convert(
data,
change: details.change,
Expand Down Expand Up @@ -566,7 +566,7 @@ class _PointerAdapter extends _BaseAdapter with _WheelEventListenerMixin {

/// Tilt angle is -90 to + 90. Take maximum deflection and convert to radians.
double _computeHighestTilt(html.PointerEvent e) =>
(e.tiltX.abs() > e.tiltY.abs() ? e.tiltX : e.tiltY).toDouble() /
(e.tiltX!.abs() > e.tiltY!.abs() ? e.tiltX : e.tiltY)!.toDouble() /
180.0 *
math.pi;
}
Expand Down Expand Up @@ -596,12 +596,12 @@ class _TouchAdapter extends _BaseAdapter {
@override
void setup() {
_addTouchEventListener('touchstart', (html.TouchEvent event) {
final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp);
final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp!);
final List<ui.PointerData> pointerData = <ui.PointerData>[];
for (html.Touch touch in event.changedTouches) {
final nowPressed = _isTouchPressed(touch.identifier);
for (html.Touch touch in event.changedTouches!) {
final nowPressed = _isTouchPressed(touch.identifier!);
if (!nowPressed) {
_pressTouch(touch.identifier);
_pressTouch(touch.identifier!);
_convertEventToPointerData(
data: pointerData,
change: ui.PointerChange.down,
Expand All @@ -616,10 +616,10 @@ class _TouchAdapter extends _BaseAdapter {

_addTouchEventListener('touchmove', (html.TouchEvent event) {
event.preventDefault(); // Prevents standard overscroll on iOS/Webkit.
final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp);
final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp!);
final List<ui.PointerData> pointerData = <ui.PointerData>[];
for (html.Touch touch in event.changedTouches) {
final nowPressed = _isTouchPressed(touch.identifier);
for (html.Touch touch in event.changedTouches!) {
final nowPressed = _isTouchPressed(touch.identifier!);
if (nowPressed) {
_convertEventToPointerData(
data: pointerData,
Expand All @@ -637,12 +637,12 @@ class _TouchAdapter extends _BaseAdapter {
// On Safari Mobile, the keyboard does not show unless this line is
// added.
event.preventDefault();
final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp);
final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp!);
final List<ui.PointerData> pointerData = <ui.PointerData>[];
for (html.Touch touch in event.changedTouches) {
final nowPressed = _isTouchPressed(touch.identifier);
for (html.Touch touch in event.changedTouches!) {
final nowPressed = _isTouchPressed(touch.identifier!);
if (nowPressed) {
_unpressTouch(touch.identifier);
_unpressTouch(touch.identifier!);
_convertEventToPointerData(
data: pointerData,
change: ui.PointerChange.up,
Expand All @@ -656,12 +656,12 @@ class _TouchAdapter extends _BaseAdapter {
});

_addTouchEventListener('touchcancel', (html.TouchEvent event) {
final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp);
final Duration timeStamp = _BaseAdapter._eventTimeStampToDuration(event.timeStamp!);
final List<ui.PointerData> pointerData = <ui.PointerData>[];
for (html.Touch touch in event.changedTouches) {
final nowPressed = _isTouchPressed(touch.identifier);
for (html.Touch touch in event.changedTouches!) {
final nowPressed = _isTouchPressed(touch.identifier!);
if (nowPressed) {
_unpressTouch(touch.identifier);
_unpressTouch(touch.identifier!);
_convertEventToPointerData(
data: pointerData,
change: ui.PointerChange.cancel,
Expand All @@ -688,7 +688,7 @@ class _TouchAdapter extends _BaseAdapter {
timeStamp: timeStamp,
kind: ui.PointerDeviceKind.touch,
signalKind: ui.PointerSignalKind.none,
device: touch.identifier,
device: touch.identifier!,
physicalX: touch.client.x * ui.window.devicePixelRatio as double,
physicalY: touch.client.y * ui.window.devicePixelRatio as double,
buttons: pressed ? _kPrimaryMouseButton : 0,
Expand Down Expand Up @@ -746,15 +746,15 @@ class _MouseAdapter extends _BaseAdapter with _WheelEventListenerMixin {
final _SanitizedDetails sanitizedDetails =
_sanitizer.sanitizeDownEvent(
button: event.button,
buttons: event.buttons,
buttons: event.buttons!,
);
_convertEventsToPointerData(data: pointerData, event: event, details: sanitizedDetails);
_callback(pointerData);
});

_addMouseEventListener('mousemove', (html.MouseEvent event) {
final List<ui.PointerData> pointerData = <ui.PointerData>[];
final _SanitizedDetails sanitizedDetails = _sanitizer.sanitizeMoveEvent(buttons: event.buttons);
final _SanitizedDetails sanitizedDetails = _sanitizer.sanitizeMoveEvent(buttons: event.buttons!);
_convertEventsToPointerData(data: pointerData, event: event, details: sanitizedDetails);
_callback(pointerData);
}, acceptOutsideGlasspane: true);
Expand All @@ -764,7 +764,7 @@ class _MouseAdapter extends _BaseAdapter with _WheelEventListenerMixin {
final bool isEndOfDrag = event.buttons == 0;
final _SanitizedDetails sanitizedDetails = isEndOfDrag ?
_sanitizer.sanitizeUpEvent()! :
_sanitizer.sanitizeMoveEvent(buttons: event.buttons);
_sanitizer.sanitizeMoveEvent(buttons: event.buttons!);
_convertEventsToPointerData(data: pointerData, event: event, details: sanitizedDetails);
_callback(pointerData);
}, acceptOutsideGlasspane: true);
Expand Down Expand Up @@ -794,7 +794,7 @@ class _MouseAdapter extends _BaseAdapter with _WheelEventListenerMixin {
_pointerDataConverter.convert(
data,
change: details.change,
timeStamp: _BaseAdapter._eventTimeStampToDuration(event.timeStamp),
timeStamp: _BaseAdapter._eventTimeStampToDuration(event.timeStamp!),
kind: ui.PointerDeviceKind.mouse,
signalKind: ui.PointerSignalKind.none,
device: _mouseDeviceId,
Expand Down
8 changes: 4 additions & 4 deletions lib/web_ui/lib/src/engine/semantics/incrementable.dart
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Expand Up @@ -45,11 +45,11 @@ class Incrementable extends RoleManager {
_element.setAttribute('role', 'slider');

_element.addEventListener('change', (_) {
if (_element.disabled) {
if (_element.disabled!) {
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Curious why this property is nullable. Even the most ancient browsers should have this property, no?

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Good question. Here, it's a limitation of the language: there is a class that extends InputElement that has disabled marked as nullable (probably due to some incompatibility), so this InputElement.disabled needs to also be nullable.

return;
}
_pendingResync = true;
final int newInputValue = int.parse(_element.value);
final int newInputValue = int.parse(_element.value!);
if (newInputValue > _currentSurrogateValue) {
_currentSurrogateValue += 1;
window.invokeOnSemanticsAction(
Expand Down Expand Up @@ -84,7 +84,7 @@ class Incrementable extends RoleManager {

void _enableBrowserGestureHandling() {
assert(semanticsObject.owner.gestureMode == GestureMode.browserGestures);
if (!_element.disabled) {
if (!_element.disabled!) {
return;
}
_element.disabled = false;
Expand Down Expand Up @@ -123,7 +123,7 @@ class Incrementable extends RoleManager {
}

void _disableBrowserGestureHandling() {
if (_element.disabled) {
if (_element.disabled!) {
return;
}
_element.disabled = true;
Expand Down
2 changes: 1 addition & 1 deletion lib/web_ui/lib/src/engine/semantics/semantics_helper.dart
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Expand Up @@ -331,7 +331,7 @@ class MobileSemanticsEnabler extends SemanticsEnabler {
case 'touchstart':
case 'touchend':
final html.TouchEvent touch = event as html.TouchEvent;
activationPoint = touch.changedTouches.first.client;
activationPoint = touch.changedTouches!.first.client;
break;
default:
// The event is not relevant, forward to framework as normal.
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8 changes: 4 additions & 4 deletions lib/web_ui/lib/src/engine/semantics/text_field.dart
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Expand Up @@ -165,17 +165,17 @@ class TextField extends RoleManager {
_textFieldElement.addEventListener('touchstart', (html.Event event) {
textEditing.useCustomEditableElement(textEditingElement);
final html.TouchEvent touchEvent = event as html.TouchEvent;
lastTouchStartOffsetX = touchEvent.changedTouches.last.client.x;
lastTouchStartOffsetY = touchEvent.changedTouches.last.client.y;
lastTouchStartOffsetX = touchEvent.changedTouches!.last.client.x;
lastTouchStartOffsetY = touchEvent.changedTouches!.last.client.y;
}, true);

_textFieldElement.addEventListener('touchend', (html.Event event) {
final html.TouchEvent touchEvent = event as html.TouchEvent;

if (lastTouchStartOffsetX != null) {
assert(lastTouchStartOffsetY != null);
final num offsetX = touchEvent.changedTouches.last.client.x;
final num offsetY = touchEvent.changedTouches.last.client.y;
final num offsetX = touchEvent.changedTouches!.last.client.x;
final num offsetY = touchEvent.changedTouches!.last.client.y;

// This should match the similar constant define in:
//
Expand Down
4 changes: 2 additions & 2 deletions lib/web_ui/lib/src/engine/surface/scene.dart
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Expand Up @@ -38,8 +38,8 @@ class PersistedScene extends PersistedContainerSurface {
// TODO(yjbanov): in the add2app scenario where we might be hosted inside
// a custom element, this will be different. We will need to
// update this code when we add add2app support.
final double screenWidth = html.window.innerWidth.toDouble();
final double screenHeight = html.window.innerHeight.toDouble();
final double screenWidth = html.window.innerWidth!.toDouble();
final double screenHeight = html.window.innerHeight!.toDouble();
_localClipBounds = ui.Rect.fromLTRB(0, 0, screenWidth, screenHeight);
_localTransformInverse = Matrix4.identity();
_projectedClip = null;
Expand Down
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