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Refactor

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This commit is contained in:
Ming Ming 2021-04-21 13:22:10 +08:00
parent 3eb634f454
commit 76d122783f
1 changed files with 23 additions and 22 deletions
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45
lib/widget/viewer.dart
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@ -73,13 +73,34 @@ class _ViewerState extends State<Viewer> with TickerProviderStateMixin {
build(BuildContext context) {
return AppTheme(
child: Scaffold(
body: Builder(builder: (context) => _buildContent(context)),
body: Builder(
builder: (context) =>
kIsWeb ? _buildWebContent(context) : _buildContent(context)),
),
);
}
Widget _buildWebContent(BuildContext context) {
assert(kIsWeb);
// support switching pages with keyboard on web
return RawKeyboardListener(
onKey: (ev) {
if (!_canSwitchPage()) {
return;
}
if (ev.isKeyPressed(LogicalKeyboardKey.arrowLeft)) {
_switchToLeftImage();
} else if (ev.isKeyPressed(LogicalKeyboardKey.arrowRight)) {
_switchToRightImage();
}
},
focusNode: _pageFocus,
child: _buildContent(context),
);
}
Widget _buildContent(BuildContext context) {
Widget content = Listener(
return Listener(
onPointerDown: (event) {
++_finger;
if (_finger >= 2 && _canZoom()) {
@ -133,26 +154,6 @@ class _ViewerState extends State<Viewer> with TickerProviderStateMixin {
),
),
);
// support switching pages with keyboard on web
if (kIsWeb) {
content = RawKeyboardListener(
onKey: (ev) {
if (!_canSwitchPage()) {
return;
}
if (ev.isKeyPressed(LogicalKeyboardKey.arrowLeft)) {
_switchToLeftImage();
} else if (ev.isKeyPressed(LogicalKeyboardKey.arrowRight)) {
_switchToRightImage();
}
},
focusNode: _pageFocus,
child: content,
);
}
return content;
}
List<Widget> _buildNavigationButtons(BuildContext context) {