Add shortcuts for copy, paste & scrolling (#10)

canonical · Jun 20, 2022 · 9e5f185 · 9e5f185
1 parent 6b78e72
commit 9e5f185
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Showing 3 changed files with 52 additions and 18 deletions.
diff --git a/packages/terminal_view/lib/src/terminal.dart b/packages/terminal_view/lib/src/terminal.dart
@@ -34,6 +34,7 @@ class Terminal extends ChangeNotifier {
         maxLines ?? 10000, // TODO
         theme?.palette.toXtermTheme() ?? xterm.TerminalThemes.defaultTheme,
       );
+      _xterm!.setBracketedPasteMode(false);
     }
     return _xterm!;
   }
@@ -72,6 +73,18 @@ class Terminal extends ChangeNotifier {
   }
 
   void selectAll() => _xterm?.selectAll();
+
+  int get _bufferHeight => _xterm?.bufferHeight ?? 0;
+  int get _pageHeight => _xterm?.viewHeight ?? 0;
+  int get _scrollOffset => _xterm?.scrollOffsetFromBottom ?? 0;
+  void _scrollTo(int offset) => _xterm?.setScrollOffsetFromBottom(offset);
+
+  void scrollUp() => _scrollTo(_scrollOffset + 1);
+  void scrollDown() => _scrollTo(_scrollOffset - 1);
+  void scrollPageUp() => _scrollTo(_scrollOffset + _pageHeight);
+  void scrollPageDown() => _scrollTo(_scrollOffset - _pageHeight);
+  void scrollToTop() => _scrollTo(_bufferHeight - _pageHeight);
+  void scrollToBottom() => _scrollTo(0);
 }
 
 extension _XtermTheme on TerminalPalette {

diff --git a/packages/terminal_view/lib/src/terminal_view.dart b/packages/terminal_view/lib/src/terminal_view.dart
@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:xterm/flutter.dart' as xterm;
 import 'package:xterm/xterm.dart' as xterm;
 
@@ -13,23 +14,43 @@ class TerminalView extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final theme = TerminalTheme.maybeOf(context);
-    return FocusScope(
-      child: AnimatedBuilder(
-        animation: terminal,
-        builder: (context, child) {
-          return xterm.TerminalView(
-            padding: 2,
-            autofocus: true,
-            terminal: terminal.buildXterm(theme: theme),
-            style: xterm.TerminalStyle(
-              fontSize: theme?.fontSize ?? 16,
-              fontFamily: [
-                if (theme != null) theme.fontFamily,
-                ...xterm.TerminalStyle.defaultFontFamily,
-              ],
-            ),
-          );
-        },
+    return CallbackShortcuts(
+      bindings: {
+        const SingleActivator(LogicalKeyboardKey.keyC,
+            control: true, shift: true): terminal.copy,
+        const SingleActivator(LogicalKeyboardKey.keyV,
+            control: true, shift: true): terminal.paste,
+        const SingleActivator(LogicalKeyboardKey.arrowUp,
+            control: true, shift: true): terminal.scrollUp,
+        const SingleActivator(LogicalKeyboardKey.arrowDown,
+            control: true, shift: true): terminal.scrollDown,
+        const SingleActivator(LogicalKeyboardKey.pageUp, shift: true):
+            terminal.scrollPageUp,
+        const SingleActivator(LogicalKeyboardKey.pageDown, shift: true):
+            terminal.scrollPageDown,
+        const SingleActivator(LogicalKeyboardKey.home, shift: true):
+            terminal.scrollToTop,
+        const SingleActivator(LogicalKeyboardKey.end, shift: true):
+            terminal.scrollToBottom,
+      },
+      child: FocusScope(
+        child: AnimatedBuilder(
+          animation: terminal,
+          builder: (context, child) {
+            return xterm.TerminalView(
+              padding: 2,
+              autofocus: true,
+              terminal: terminal.buildXterm(theme: theme),
+              style: xterm.TerminalStyle(
+                fontSize: theme?.fontSize ?? 16,
+                fontFamily: [
+                  if (theme != null) theme.fontFamily,
+                  ...xterm.TerminalStyle.defaultFontFamily,
+                ],
+              ),
+            );
+          },
+        ),
       ),
     );
   }

diff --git a/packages/terminal_view/pubspec.yaml b/packages/terminal_view/pubspec.yaml
@@ -15,7 +15,7 @@ dependencies:
   xterm: #^2.6.0
     git:
       url: https://github.com/jpnurmi/xterm.dart
-      ref: flutter-3
+      ref: dev
 
 dev_dependencies:
   flutter_lints: ^2.0.0