feat(flutter): 重设计登录页视觉
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Zhou Weidong committed
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@@ -0,0 +1,363 @@
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// Author: fruit.com.cn
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part of 'auth_view.dart';
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class _AuthFields extends StatelessWidget {
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const _AuthFields({required this.state, required this.callbacks});
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final _AuthCardState state;
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final _AuthCardCallbacks callbacks;
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@override
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Widget build(BuildContext context) {
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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_fieldLabel(state.l10n.authEmailLabel),
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const SizedBox(height: 8),
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_emailField(),
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const SizedBox(height: 16),
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_fieldLabel(state.l10n.authPasswordLabel),
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const SizedBox(height: 8),
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_passwordField(),
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],
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);
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}
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Widget _emailField() {
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final enabled = !state.status.busy;
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return ListenableBuilder(
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listenable: state.fields.emailFocus,
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builder: (context, _) => SizedBox(
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height: _fieldHeight,
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child: TextField(
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key: const Key('auth-email'),
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controller: state.fields.email,
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focusNode: state.fields.emailFocus,
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enabled: enabled,
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autofocus: true,
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keyboardType: TextInputType.emailAddress,
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textInputAction: TextInputAction.next,
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autofillHints: const [AutofillHints.email],
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onChanged: callbacks.onEmailChanged,
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onSubmitted: (_) => state.fields.passwordFocus.requestFocus(),
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style: const TextStyle(color: AppColors.onPrimary, fontSize: 15),
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decoration: _decoration(
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hint: 'name@example.com',
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icon: Icons.mail_outline_rounded,
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focused: state.fields.emailFocus.hasFocus,
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),
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),
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),
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);
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}
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Widget _passwordField() {
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final enabled = !state.status.busy;
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final l10n = state.l10n;
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return ListenableBuilder(
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listenable: state.fields.passwordFocus,
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builder: (context, _) => SizedBox(
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height: _fieldHeight,
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child: TextField(
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key: const Key('auth-password'),
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controller: state.fields.password,
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focusNode: state.fields.passwordFocus,
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enabled: enabled,
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obscureText: state.status.obscurePassword,
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keyboardType: TextInputType.visiblePassword,
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textInputAction: TextInputAction.done,
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autofillHints: const [AutofillHints.password],
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onChanged: callbacks.onPasswordChanged,
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onSubmitted: (_) => callbacks.onSubmit(),
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style: const TextStyle(color: AppColors.onPrimary, fontSize: 15),
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decoration: _decoration(
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hint: l10n.authPasswordHint,
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icon: Icons.lock_outline_rounded,
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focused: state.fields.passwordFocus.hasFocus,
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suffix: IconButton(
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key: const Key('auth-password-visibility'),
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constraints: const BoxConstraints.tightFor(
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width: _minTapTarget,
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height: _minTapTarget,
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),
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tooltip: state.status.obscurePassword
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? l10n.showPassword
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: l10n.hidePassword,
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onPressed: enabled ? callbacks.onTogglePasswordVisibility : null,
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icon: Icon(
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state.status.obscurePassword
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? Icons.visibility_outlined
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: Icons.visibility_off_outlined,
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color: AppColors.muted,
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),
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),
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),
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),
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),
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);
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}
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Widget _fieldLabel(String label) => Text(
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label,
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style: const TextStyle(
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color: AppColors.muted,
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fontSize: 13,
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fontWeight: FontWeight.w600,
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),
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);
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InputDecoration _decoration({
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required String hint,
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required IconData icon,
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required bool focused,
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Widget? suffix,
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}) {
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final border = OutlineInputBorder(
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borderRadius: BorderRadius.circular(_fieldRadius),
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borderSide: BorderSide.none,
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);
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return InputDecoration(
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hintText: hint,
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hintStyle: const TextStyle(color: AppColors.muted, fontSize: 14),
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prefixIcon: Icon(
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icon,
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size: 21,
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color: focused ? AppColors.blueSoft : AppColors.muted,
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),
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prefixIconConstraints: const BoxConstraints(
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minWidth: _minTapTarget,
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minHeight: _minTapTarget,
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),
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suffixIcon: suffix,
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filled: true,
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fillColor: AppColors.bar,
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isDense: true,
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contentPadding: const EdgeInsets.only(right: 16),
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border: border,
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enabledBorder: border,
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disabledBorder: border,
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focusedBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(_fieldRadius),
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borderSide: const BorderSide(
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color: AppColors.blue,
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width: _fieldBorderWidth,
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),
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),
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);
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}
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}
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class _AuthSubmitButton extends StatelessWidget {
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const _AuthSubmitButton({required this.state, required this.onSubmit});
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final _AuthCardState state;
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final VoidCallback onSubmit;
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@override
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Widget build(BuildContext context) {
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final status = state.status;
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final l10n = state.l10n;
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return SizedBox(
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width: double.infinity,
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height: _buttonHeight,
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child: FilledButton(
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key: const Key('auth-submit'),
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onPressed: status.busy ? null : onSubmit,
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style: ButtonStyle(
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backgroundColor: WidgetStateProperty.resolveWith((states) {
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if (states.contains(WidgetState.disabled)) {
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return AppColors.blue.withValues(alpha: 0.5);
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}
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if (states.contains(WidgetState.pressed)) {
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return AppColors.bluePressed;
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}
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return AppColors.blue;
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}),
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foregroundColor: const WidgetStatePropertyAll(AppColors.onPrimary),
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elevation: const WidgetStatePropertyAll(0),
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padding: const WidgetStatePropertyAll(EdgeInsets.zero),
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shape: WidgetStatePropertyAll(
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RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(_buttonRadius),
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),
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),
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),
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child: status.busy
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? const SizedBox.square(
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dimension: 18,
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child: CircularProgressIndicator(
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strokeWidth: 2,
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color: AppColors.onPrimary,
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),
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)
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: Text(
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status.signUpMode ? l10n.signUp : l10n.signIn,
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style: const TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.w700,
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),
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),
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),
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);
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}
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}
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class _ModeSegment extends StatelessWidget {
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const _ModeSegment({
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required this.segmentKey,
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required this.label,
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required this.hiddenLabel,
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required this.selected,
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required this.onTap,
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});
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final Key segmentKey;
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final String label;
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final String hiddenLabel;
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final bool selected;
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final VoidCallback? onTap;
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@override
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Widget build(BuildContext context) {
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return GestureDetector(
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key: segmentKey,
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behavior: HitTestBehavior.opaque,
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onTap: onTap,
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child: AnimatedContainer(
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duration: _segmentDuration,
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alignment: Alignment.center,
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decoration: BoxDecoration(
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color: selected ? AppColors.blue : Colors.transparent,
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borderRadius: BorderRadius.circular(18),
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),
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child: Stack(
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fit: StackFit.expand,
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children: [
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Center(
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child: Text(
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label,
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style: TextStyle(
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color: selected ? AppColors.onPrimary : AppColors.muted,
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fontSize: 14,
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fontWeight: FontWeight.w700,
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),
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),
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),
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Positioned.fill(
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child: ExcludeSemantics(
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child: Opacity(
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opacity: 0,
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child: Center(
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child: Text(
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hiddenLabel,
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maxLines: 1,
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softWrap: false,
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style: const TextStyle(fontSize: 14),
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),
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),
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),
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),
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),
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],
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),
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),
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);
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}
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}
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class _AuthBrand extends StatelessWidget {
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const _AuthBrand({required this.tagline});
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final String tagline;
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@override
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Widget build(BuildContext context) {
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return Row(
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key: const Key('auth-brand'),
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children: [
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Container(
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key: const Key('auth-brand-mark'),
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width: _brandMarkSize,
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height: _brandMarkSize,
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decoration: BoxDecoration(
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color: AppColors.blue,
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borderRadius: BorderRadius.circular(14),
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boxShadow: [
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BoxShadow(
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color: AppColors.blue.withValues(alpha: 0.32),
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blurRadius: 24,
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offset: const Offset(0, 10),
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),
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],
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),
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child: const Icon(
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Icons.movie_filter_rounded,
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color: AppColors.onPrimary,
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size: 26,
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),
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),
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const SizedBox(width: 14),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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AppLocalizations.of(context)!.appName,
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style: const TextStyle(
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color: AppColors.onPrimary,
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fontSize: 23,
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fontWeight: FontWeight.w800,
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height: 1.1,
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),
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),
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const SizedBox(height: 4),
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Text(
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tagline,
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style: const TextStyle(
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color: AppColors.blueSoft,
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fontSize: 13,
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height: 1.35,
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),
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),
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],
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),
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),
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],
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);
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}
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}
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class _AuthError extends StatelessWidget {
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const _AuthError({required this.message});
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final String message;
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@override
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Widget build(BuildContext context) {
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final color = Theme.of(context).colorScheme.error;
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return Container(
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key: const Key('auth-error-capsule'),
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padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
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decoration: BoxDecoration(
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color: color.withValues(alpha: _errorOpacity),
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borderRadius: BorderRadius.circular(12),
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border: Border.all(color: color.withValues(alpha: _errorBorderOpacity)),
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),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Icon(Icons.error_outline_rounded, color: color, size: 18),
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const SizedBox(width: 8),
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Expanded(
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child: Text(
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message,
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key: const Key('auth-error'),
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style: TextStyle(color: color, fontSize: 13, height: 1.35),
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),
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),
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],
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),
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);
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}
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}
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