320 lines
13 KiB
Dart
320 lines
13 KiB
Dart
import 'package:flutter/material.dart';
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import 'border_accept.dart';
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import 'dotted_border.dart';
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import 'theme.dart';
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import 'window.dart';
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enum WindowPos { top, left, bottom, right, tab }
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class RenderWindowGroup extends StatefulWidget {
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final WindowGroup group;
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final VoidCallback onFullScreen, onClose, update;
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final bool minimize;
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final Size popUpSize;
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final bool isDragging;
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final void Function(WindowTab) onCancel;
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final ValueChanged<bool> onDraggingChanged;
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final void Function(BuildContext, WindowTab, WindowPos, [int index]) onModify;
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final WindowTab Function() onAddTab;
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const RenderWindowGroup({
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Key key,
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this.group,
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this.onFullScreen,
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this.onClose,
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this.minimize = false,
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this.update,
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@required this.onCancel,
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@required this.popUpSize,
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@required this.onDraggingChanged,
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@required this.isDragging,
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this.onModify,
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@required this.onAddTab,
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}) : super(key: key);
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@override
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_RenderWindowGroupState createState() => _RenderWindowGroupState();
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}
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class _RenderWindowGroupState extends State<RenderWindowGroup> {
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int accepting;
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WindowTab _draggingTab;
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@override
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void initState() {
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widget.group.addListener(() {
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if (mounted) {
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setState(() {});
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}
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});
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super.initState();
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}
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@override
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Widget build(BuildContext context) {
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final _theme =
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GoldenLayoutTheme.of(context).theme ?? GoldenLayoutThemeData();
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return Column(
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children: [
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Container(
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color: _theme.backgroundColor,
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height: 32,
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child: Row(
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children: [
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Expanded(
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child: SingleChildScrollView(
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scrollDirection: Axis.horizontal,
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Container(width: 4),
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for (var i = 0; i < widget.group.tabs.length; i++)
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Draggable<WindowTab>(
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data: widget.group.tabs[i],
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onDragStarted: () {
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_draggingTab = widget.group.tabs[i];
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widget.group.removeTab(_draggingTab);
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widget.update();
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if (widget.group.tabs.isEmpty) {
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widget.onClose.call();
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}
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widget.onDraggingChanged(true);
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},
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onDragCompleted: () {
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widget.onDraggingChanged(false);
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_draggingTab = null;
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},
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onDragEnd: (_) {
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widget.onDraggingChanged(false);
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_draggingTab = null;
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},
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onDraggableCanceled: (_, __) {
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widget.onDraggingChanged(false);
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widget.onCancel(_draggingTab);
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_draggingTab = null;
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},
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feedback: Column(
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mainAxisSize: MainAxisSize.min,
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mainAxisAlignment: MainAxisAlignment.start,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Material(
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elevation: 8,
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color: Colors.red,
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borderRadius: BorderRadius.only(
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topLeft: Radius.circular(5),
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topRight: Radius.circular(5),
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),
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child: Padding(
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padding: const EdgeInsets.all(8.0),
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child: widget.group.tabs[i]
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.title(context, false, i),
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),
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),
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SizedBox.fromSize(
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size: widget.popUpSize,
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child:
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Material(elevation: 8, child: Container()),
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),
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],
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),
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child: DragTarget<WindowTab>(
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onLeave: (_) {
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if (mounted) {
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setState(() {
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accepting = null;
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});
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}
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},
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onWillAcceptWithDetails: (val) {
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if (mounted) {
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setState(() {
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accepting = i;
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});
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}
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return true;
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},
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onAcceptWithDetails: (val) {
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widget.onModify(
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context, val, WindowPos.tab, accepting);
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if (mounted) {
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setState(() {
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accepting = null;
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});
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}
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},
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builder: (context, accepted, rejected) {
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final selected = i == widget.group.activeTabIndex;
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return InkWell(
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onTap: () {
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widget.group.selectTab(i);
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widget.update();
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},
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child: Container(
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decoration: BoxDecoration(
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color: selected
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? _theme.tabSelectedBackgroundColor ??
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Colors.grey.shade600
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: _theme.backgroundColor,
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borderRadius: selected
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? BorderRadius.only(
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topLeft: Radius.circular(5),
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topRight: Radius.circular(5),
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)
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: null,
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),
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height: double.infinity,
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margin: EdgeInsets.only(
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top: 4,
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),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment:
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CrossAxisAlignment.center,
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children: [
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if (accepting != i)
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Container(
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child: widget.group.tabs[i]
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.title(context, false, i),
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),
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if (accepting == i)
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Container(
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width: 100,
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height: double.infinity,
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child: DashedRect(
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color: Colors.white,
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shadowColor: Colors.grey.shade300,
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strokeWidth: 2.0,
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gap: 5.0,
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),
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),
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if (widget.group.tabs[i].canClose &&
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selected) ...[
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Container(width: 4),
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InkWell(
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child: Icon(
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Icons.close,
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size: 18,
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color: _theme.tabIconColor ??
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Colors.white,
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),
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onTap: () {
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widget.group.tabs[i].onClose
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.call();
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widget.group.removeTab(
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widget.group.tabs[i]);
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widget.update();
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if (widget.group.tabs.isEmpty) {
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widget.onClose.call();
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}
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},
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),
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],
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if (!selected &&
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i + 1 != widget.group.activeTabIndex)
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VerticalDivider(
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indent: 4,
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width: 1,
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thickness: 1,
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color: Colors.grey.shade500,
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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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), dragAnchorStrategy: childDragAnchorStrategy,
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),
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IconButton(
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iconSize: 20,
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icon: Icon(
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Icons.add,
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color: Colors.white,
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),
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onPressed: () =>
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widget.group.addTab(widget.onAddTab())),
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if (widget.isDragging)
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WindowAcceptRegion(
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size: Size(100, 32),
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onAccept: (val) {
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widget.group.addTab(val);
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widget.update();
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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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IconButton(
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color: _theme.tabIconColor ?? Colors.white,
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iconSize: 18,
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icon: Icon(widget.minimize ? Icons.minimize : Icons.fullscreen),
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onPressed: widget.onFullScreen,
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),
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IconButton(
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color: _theme.tabIconColor ?? Colors.white,
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iconSize: 18,
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icon: Icon(Icons.close),
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onPressed: widget.onClose,
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),
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],
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),
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),
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Expanded(
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child: LayoutBuilder(
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builder: (context, dimens) => Stack(
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children: [
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Positioned.fill(
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child: widget.group.tabs.isEmpty
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? Container()
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: widget.group.tabs[widget.group.activeTabIndex].child ??
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Container(),
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),
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Positioned(
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top: 0,
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width: dimens.maxWidth,
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height: dimens.minHeight * 0.5,
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child: WindowAcceptRegion(
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onAccept: (val) =>
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widget.onModify(context, val, WindowPos.top),
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),
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),
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Positioned(
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bottom: 0,
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width: dimens.maxWidth,
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height: dimens.minHeight * 0.5,
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child: WindowAcceptRegion(
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onAccept: (val) =>
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widget.onModify(context, val, WindowPos.bottom),
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),
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),
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Positioned(
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right: 0,
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width: dimens.maxWidth * 0.5,
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height: dimens.minHeight,
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child: WindowAcceptRegion(
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left: dimens.maxWidth * 0.2,
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onAccept: (val) =>
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widget.onModify(context, val, WindowPos.right),
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),
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),
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Positioned(
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left: 0,
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width: dimens.maxWidth * 0.5,
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height: dimens.minHeight,
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child: WindowAcceptRegion(
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right: dimens.maxWidth * 0.2,
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onAccept: (val) =>
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widget.onModify(context, val, WindowPos.left),
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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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