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home_page.dart
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home_page.dart
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import 'package:flex_color_scheme/flex_color_scheme.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import '../../../shared/const/app.dart';
import '../../../shared/const/app_color.dart';
import '../../../shared/controllers/theme_controller.dart';
import '../../../shared/widgets/app/responsive_scaffold.dart';
import '../../../shared/widgets/universal/responsive_dialog.dart';
import '../../utils/generate_colorscheme_dart_code.dart';
import '../dialogs/dart_code_dialog_screen.dart';
import '../dialogs/reset_settings_dialog.dart';
import '../dialogs/show_copy_setup_code_dialog.dart';
import 'theme_topic.dart';
import 'theme_topic_page.dart';
import 'theme_topics_grid_page.dart';
import 'theme_two_topics_page.dart';
import 'theme_two_topics_vertical_page.dart';
/// Home Page for FlexColorScheme EXAMPLE 5 - Themes Playground.
///
/// The learn more about using this app see the docs at:
/// - https://docs.flexcolorscheme.com/playground
///
/// The learn more about its history and design see docs at:
/// - https://docs.flexcolorscheme.com/tutorial5
class HomePage extends StatefulWidget {
const HomePage({
super.key,
required this.controller,
});
final ThemeController controller;
@override
State<HomePage> createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
// Open close/state of each panel in the large masonry grid view.
late List<bool> isPanelOpen;
// Enabled state of each menuItem.
late List<bool> menuItemsEnabled;
// Active state of each menuItem.
late List<ResponsiveMenuItemIconState> menuItemsIconState;
// Toggle the state of a card between open/closed.
void togglePanelOpenClose(int index) {
setState(() {
isPanelOpen[index] = !isPanelOpen[index];
});
}
@override
void initState() {
super.initState();
// Set enabled menu items.
menuItemsEnabled =
List<bool>.generate(App.menuItems.length, (int i) => true);
menuItemsEnabled[9] = widget.controller.isLargeGridView;
menuItemsEnabled[10] = widget.controller.isLargeGridView;
menuItemsEnabled[3] = widget.controller.useFlexColorScheme;
// Set menu icons states to initial states, some are a loaded from
// persisted values via the theme controller.
menuItemsIconState = List<ResponsiveMenuItemIconState>.generate(
App.menuItems.length, (int i) => ResponsiveMenuItemIconState.primary);
menuItemsIconState[6] = widget.controller.isLargeGridView
? ResponsiveMenuItemIconState.secondary
: ResponsiveMenuItemIconState.primary;
// The panels can only be opened/closed on the large masonry grid view.
// Since by default users will start with the page view, they will have
// New in V7, keeping grid view panels all closed at start. Might
// phase out the grid view and remove it totally.
isPanelOpen = List<bool>.generate(themeTopics.length, (int i) => false);
}
@override
void didChangeDependencies() {
super.didChangeDependencies();
menuItemsIconState[0] = Theme.of(context).brightness == Brightness.light
? ResponsiveMenuItemIconState.primary
: ResponsiveMenuItemIconState.secondary;
menuItemsIconState[1] = widget.controller.useMaterial3
? ResponsiveMenuItemIconState.primary
: ResponsiveMenuItemIconState.secondary;
menuItemsIconState[2] = widget.controller.useFlexColorScheme
? ResponsiveMenuItemIconState.primary
: ResponsiveMenuItemIconState.secondary;
menuItemsIconState[3] = widget.controller.useSubThemes
? ResponsiveMenuItemIconState.primary
: ResponsiveMenuItemIconState.secondary;
menuItemsEnabled[3] = widget.controller.useFlexColorScheme;
menuItemsIconState[7] = widget.controller.compactMode
? ResponsiveMenuItemIconState.primary
: ResponsiveMenuItemIconState.secondary;
menuItemsIconState[8] = widget.controller.verticalMode
? ResponsiveMenuItemIconState.primary
: ResponsiveMenuItemIconState.secondary;
}
void updateMenuState(int index) {
setState(() {
menuItemsIconState[index] =
menuItemsIconState[index] == ResponsiveMenuItemIconState.primary
? ResponsiveMenuItemIconState.secondary
: ResponsiveMenuItemIconState.primary;
});
}
@override
Widget build(BuildContext context) {
final ThemeData theme = Theme.of(context);
final bool isDark = theme.brightness == Brightness.dark;
final TextTheme textTheme = theme.textTheme;
final Size mediaSize = MediaQuery.sizeOf(context);
final bool isPhone = mediaSize.width < App.phoneWidthBreakpoint ||
mediaSize.height < App.phoneHeightBreakpoint;
final bool isBigDesktop =
mediaSize.width > App.mediumDesktopWidthBreakpoint;
final String materialType = theme.useMaterial3 ? 'M3 ' : 'M2 ';
// Disable vertical/horizontal setting when it has no effect.
menuItemsEnabled[8] = isBigDesktop && !widget.controller.isLargeGridView;
return AnnotatedRegion<SystemUiOverlayStyle>(
value: FlexColorScheme.themedSystemNavigationBar(
context,
systemNavBarStyle: widget.controller.sysNavBarStyle,
useDivider: widget.controller.useSysNavDivider,
opacity: widget.controller.sysNavBarOpacity,
),
child: ResponsiveScaffold(
extendBodyBehindAppBar: true,
extendBody: true,
railWidth: isPhone ? 52 : 66,
breakpointShowFullMenu: App.desktopWidthBreakpoint,
title: isPhone
? Text('$materialType '
'${AppColor.schemes[widget.controller.schemeIndex].name}')
: Text('${App.title(context)} '
'$materialType'
'${AppColor.schemes[widget.controller.schemeIndex].name}'),
menuTitle: const Text(App.packageName),
menuLeadingTitle: Text(
App.title(context),
style: textTheme.titleSmall!.copyWith(fontWeight: FontWeight.bold),
),
menuLeadingSubtitle: const Text('Version ${App.versionMajor}'),
menuLeadingAvatarLabel: 'FCS',
menuItems: App.menuItems,
menuItemsEnabled: menuItemsEnabled,
menuItemsIconState: menuItemsIconState,
// Callback from menu, using simple index based actions here.
onSelect: (int index) async {
// Set theme-mode light/dark
if (index == 0) {
if (isDark) {
widget.controller.setThemeMode(ThemeMode.light);
} else {
widget.controller.setThemeMode(ThemeMode.dark);
}
// On purpose no call to update menu change, it is handled by the
// didChangeDependencies called when the theme actually changes.
}
// Set M3 ON/OFF
else if (index == 1) {
if (widget.controller.useMaterial3) {
widget.controller.setUseMaterial3(false);
} else {
widget.controller.setUseMaterial3(true);
}
updateMenuState(index);
}
// Set FCS ON/OFF
else if (index == 2) {
if (widget.controller.useFlexColorScheme) {
widget.controller.setUseFlexColorScheme(false);
} else {
widget.controller.setUseFlexColorScheme(true);
}
updateMenuState(index);
}
// Set Sub-themes ON/OFF
else if (index == 3) {
if (widget.controller.useSubThemes) {
widget.controller.setUseSubThemes(false);
} else {
widget.controller.setUseSubThemes(true);
}
updateMenuState(index);
}
// Copy theme setup code
else if (index == 4) {
await showCopySetupCodeDialog(context, widget.controller);
}
// Copy ColorScheme code
else if (index == 5) {
final String code = generateColorSchemeDartCode(widget.controller);
await showResponsiveDialog<void>(
context: context,
child: DartCodeDialogScreen(
dialogHeader: 'Copy light and dark ColorScheme code',
copyMessage: 'ColorScheme code copied to the clipboard!',
code: code,
),
);
}
// Toggle grid view mode true/false.
else if (index == 6) {
widget.controller
.setLargeGridView(!widget.controller.isLargeGridView);
menuItemsEnabled[9] = !menuItemsEnabled[9];
menuItemsEnabled[10] = !menuItemsEnabled[10];
updateMenuState(index);
}
// Toggle compact/standard mode.
else if (index == 7) {
widget.controller.setCompactMode(!widget.controller.compactMode);
updateMenuState(index);
}
// Toggle horizontal/vertical mode.
else if (index == 8) {
widget.controller.setVerticalMode(!widget.controller.verticalMode);
updateMenuState(index);
}
// Open all cards
else if (index == 9) {
for (int i = 0; i < isPanelOpen.length; i++) {
isPanelOpen[i] = true;
}
setState(() {});
}
// Close all cards
else if (index == 10) {
for (int i = 0; i < isPanelOpen.length; i++) {
isPanelOpen[i] = false;
}
setState(() {});
}
// Reset theme settings.
else if (index == 11) {
final bool? reset = await showDialog<bool?>(
context: context,
builder: (BuildContext context) {
return const ResetSettingsDialog();
},
);
if (reset ?? false) {
await widget.controller.resetAllToDefaults();
}
}
},
body: widget.controller.isLargeGridView
? ThemeTopicsGridPage(
controller: widget.controller,
isCardOpen: isPanelOpen,
toggleCard: togglePanelOpenClose,
)
: isBigDesktop
? widget.controller.verticalMode
? ThemeTwoTopicsVerticalPage(controller: widget.controller)
: ThemeTwoTopicsPage(controller: widget.controller)
: ThemeTopicPage(controller: widget.controller),
),
);
}
}