OCR page: missing case fixed + file splitted (#5395)

packages/smooth_app/lib/pages/product/edit_ocr/edit_ocr_main_action.dart

@@ -0,0 +1,209 @@
+part of 'edit_ocr_page.dart';
+
+class _EditOcrMainAction extends StatelessWidget {
+  const _EditOcrMainAction({
+    required this.onPressed,
+    required this.helper,
+    required this.state,
+  });
+
+  final VoidCallback onPressed;
+  final OcrHelper helper;
+  final _OcrState state;
+
+  @override
+  Widget build(BuildContext context) {
+    final AppLocalizations appLocalizations = AppLocalizations.of(context);
+
+    final Widget? child = switch (state) {
+      _OcrState.IMAGE_LOADING => _EditOcrActionLoadingContent(
+          helper: helper,
+          appLocalizations: appLocalizations,
+        ),
+      _OcrState.IMAGE_LOADED => _ExtractMainActionContentLoaded(
+          helper: helper,
+          appLocalizations: appLocalizations,
+          onPressed: onPressed,
+        ),
+      _OcrState.EXTRACTING_DATA => _EditOcrActionExtractingContent(
+          helper: helper,
+          appLocalizations: appLocalizations,
+        ),
+      _OcrState.OTHER => null,
+    };
+
+    if (child == null) {
+      return EMPTY_WIDGET;
+    }
+
+    final SmoothColorsThemeExtension theme =
+        Theme.of(context).extension<SmoothColorsThemeExtension>()!;
+
+    return SizedBox(
+      height: 45.0 * (_computeFontScaleFactor(context)),
+      width: double.infinity,
+      child: DecoratedBox(
+        decoration: BoxDecoration(
+          borderRadius: ANGULAR_BORDER_RADIUS,
+          color: theme.primarySemiDark,
+          border: Border.all(
+            color: theme.primaryBlack,
+            width: 2.0,
+          ),
+        ),
+        child: Material(
+          type: MaterialType.transparency,
+          child: ProgressIndicatorTheme(
+            data: const ProgressIndicatorThemeData(
+              color: Colors.white,
+            ),
+            child: IconTheme(
+              data: const IconThemeData(color: Colors.white),
+              child: DefaultTextStyle(
+                style: const TextStyle(
+                  fontWeight: FontWeight.bold,
+                  fontSize: 15.5,
+                  color: Colors.white,
+                ),
+                child: child,
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
+  double _computeFontScaleFactor(BuildContext context) {
+    final double fontSize = DefaultTextStyle.of(context).style.fontSize ?? 15.0;
+    final double scaledFontSize =
+        MediaQuery.textScalerOf(context).scale(fontSize);
+
+    return scaledFontSize / fontSize;
+  }
+}
+
+class _EditOcrActionExtractingContent extends StatelessWidget {
+  const _EditOcrActionExtractingContent({
+    required this.helper,
+    required this.appLocalizations,
+  });
+
+  final OcrHelper helper;
+  final AppLocalizations appLocalizations;
+
+  @override
+  Widget build(BuildContext context) {
+    return Semantics(
+      label: helper.getActionLoadingPhoto(appLocalizations),
+      excludeSemantics: true,
+      child: Shimmer(
+        gradient: const LinearGradient(
+          begin: Alignment.centerLeft,
+          end: Alignment.centerRight,
+          colors: <Color>[
+            Colors.black,
+            Colors.white,
+            Colors.black,
+          ],
+        ),
+        child: Padding(
+          padding: const EdgeInsets.symmetric(horizontal: MEDIUM_SPACE),
+          child: Row(
+            mainAxisAlignment: MainAxisAlignment.center,
+            crossAxisAlignment: CrossAxisAlignment.center,
+            children: <Widget>[
+              const CircularProgressIndicator.adaptive(),
+              Expanded(
+                child: Text(
+                  helper.getActionExtractingData(appLocalizations),
+                  textAlign: TextAlign.center,
+                ),
+              ),
+              const CircularProgressIndicator.adaptive(),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+class _ExtractMainActionContentLoaded extends StatelessWidget {
+  const _ExtractMainActionContentLoaded({
+    required this.helper,
+    required this.appLocalizations,
+    required this.onPressed,
+  });
+
+  final OcrHelper helper;
+  final AppLocalizations appLocalizations;
+  final VoidCallback onPressed;
+
+  @override
+  Widget build(BuildContext context) {
+    return Semantics(
+      excludeSemantics: true,
+      value: helper.getActionExtractText(appLocalizations),
+      button: true,
+      child: InkWell(
+        onTap: onPressed,
+        borderRadius: ANGULAR_BORDER_RADIUS,
+        child: Padding(
+          padding: const EdgeInsets.symmetric(horizontal: MEDIUM_SPACE),
+          child: Row(
+            mainAxisAlignment: MainAxisAlignment.center,
+            crossAxisAlignment: CrossAxisAlignment.center,
+            children: <Widget>[
+              Expanded(
+                child: Text(
+                  helper.getActionExtractText(appLocalizations),
+                ),
+              ),
+              const Icon(
+                Icons.download,
+                semanticLabel: '',
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+class _EditOcrActionLoadingContent extends StatelessWidget {
+  const _EditOcrActionLoadingContent({
+    required this.helper,
+    required this.appLocalizations,
+  });
+
+  final OcrHelper helper;
+  final AppLocalizations appLocalizations;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.symmetric(horizontal: MEDIUM_SPACE),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.center,
+        crossAxisAlignment: CrossAxisAlignment.center,
+        children: <Widget>[
+          Expanded(
+            child: Text(
+              helper.getActionLoadingPhoto(appLocalizations),
+            ),
+          ),
+          const CircularProgressIndicator.adaptive(),
+        ],
+      ),
+    );
+  }
+}
+
+enum _OcrState {
+  IMAGE_LOADING,
+  IMAGE_LOADED,
+  EXTRACTING_DATA,
+  OTHER,
+}