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implement continuous mode, gesture, keyboard recognition

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nyne
2024-10-09 11:16:00 +08:00
parent 12463208a6
commit 90b9265ca0
8 changed files with 860 additions and 32 deletions
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89
lib/pages/reader/gesture.dart
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@@ -14,6 +14,8 @@ class _ReaderGestureDetectorState extends State<_ReaderGestureDetector> {
static const _kDoubleTapMinTime = Duration(milliseconds: 200);
static const _kLongPressMinTime = Duration(milliseconds: 200);
static const _kDoubleTapMaxDistanceSquared = 20.0 * 20.0;
static const _kTapToTurnPagePercent = 0.3;
@@ -33,7 +35,28 @@ class _ReaderGestureDetectorState extends State<_ReaderGestureDetector> {
return Listener(
behavior: HitTestBehavior.translucent,
onPointerDown: (event) {
_lastTapPointer = event.pointer;
_lastTapMoveDistance = Offset.zero;
_tapGestureRecognizer.addPointer(event);
Future.delayed(_kLongPressMinTime, () {
if (_lastTapPointer == event.pointer &&
_lastTapMoveDistance!.distanceSquared < 20.0 * 20.0) {
onLongPressedDown(event.position);
_longPressInProgress = true;
}
});
},
onPointerMove: (event) {
if (event.pointer == _lastTapPointer) {
_lastTapMoveDistance = event.delta + _lastTapMoveDistance!;
}
},
onPointerUp: (event) {
if (_longPressInProgress) {
onLongPressedUp(event.position);
}
_lastTapPointer = null;
_lastTapMoveDistance = null;
},
onPointerSignal: (event) {
if (event is PointerScrollEvent) {
@@ -45,20 +68,32 @@ class _ReaderGestureDetectorState extends State<_ReaderGestureDetector> {
}
void onMouseWheel(bool forward) {
if (forward) {
if (!context.reader.toNextPage()) {
context.reader.toNextChapter();
}
} else {
if (!context.reader.toPrevPage()) {
context.reader.toPrevChapter();
if (context.reader.mode.key.startsWith('gallery')) {
if (forward) {
if (!context.reader.toNextPage()) {
context.reader.toNextChapter();
}
} else {
if (!context.reader.toPrevPage()) {
context.reader.toPrevChapter();
}
}
}
}
TapUpDetails? _previousEvent;
int? _lastTapPointer;
Offset? _lastTapMoveDistance;
bool _longPressInProgress = false;
void onTapUp(TapUpDetails event) {
if (_longPressInProgress) {
_longPressInProgress = false;
return;
}
final location = event.globalPosition;
final previousLocation = _previousEvent?.globalPosition;
if (previousLocation != null) {
@@ -147,19 +182,35 @@ class _ReaderGestureDetectorState extends State<_ReaderGestureDetector> {
context,
location,
[
DesktopMenuEntry(text: "Settings".tl, onClick: () {
context.readerScaffold.openSetting();
}),
DesktopMenuEntry(text: "Chapters".tl, onClick: () {
context.readerScaffold.openChapterDrawer();
}),
DesktopMenuEntry(text: "Fullscreen".tl, onClick: () {
context.reader.fullscreen();
}),
DesktopMenuEntry(text: "Exit".tl, onClick: () {
context.pop();
}),
DesktopMenuEntry(
text: "Settings".tl,
onClick: () {
context.readerScaffold.openSetting();
}),
DesktopMenuEntry(
text: "Chapters".tl,
onClick: () {
context.readerScaffold.openChapterDrawer();
}),
DesktopMenuEntry(
text: "Fullscreen".tl,
onClick: () {
context.reader.fullscreen();
}),
DesktopMenuEntry(
text: "Exit".tl,
onClick: () {
context.pop();
}),
],
);
}
void onLongPressedUp(Offset location) {
context.reader._imageViewController?.handleLongPressUp(location);
}
void onLongPressedDown(Offset location) {
context.reader._imageViewController?.handleLongPressDown(location);
}
}