offer using Alt key as Meta key (fixes #316)

terminus-core/src/components/appRoot.component.ts

@@ -131,7 +131,9 @@ export class AppRootComponent {
         if (this.electron.app.window.isFocused()) {
             // focused
             this.electron.loseFocus()
-            this.electron.app.window.hide()
+            if (this.hostApp.platform !== Platform.macOS) {
+                this.electron.app.window.hide()
+            }
         } else {
             if (!this.electron.app.window.isVisible()) {
                 // unfocused, invisible

terminus-terminal/src/components/terminalSettingsTab.component.pug

@@ -242,50 +242,46 @@ h3.mb-3 Appearance
 
 h3.mt-3.mb-3 Shell
 
-.row
-    .col-md-6
-        .d-flex
-            .form-group.mr-3
-                label Shell
-                select.form-control(
-                    [(ngModel)]='config.store.terminal.shell',
-                    (ngModelChange)='config.save()',
-                )
-                    option(
-                        *ngFor='let shell of shells',
-                        [ngValue]='shell.id'
-                    ) {{shell.name}}
+.d-flex
+    .form-group.mr-3
+        label Shell
+        select.form-control(
+            [(ngModel)]='config.store.terminal.shell',
+            (ngModelChange)='config.save()',
+        )
+            option(
+                *ngFor='let shell of shells',
+                [ngValue]='shell.id'
+            ) {{shell.name}}
 
-            .form-group(*ngIf='persistenceProviders.length > 0')
-                label Session persistence
-                select.form-control(
-                    [(ngModel)]='config.store.terminal.persistence',
-                    (ngModelChange)='config.save()',
-                )
-                    option([ngValue]='null') Off
-                    option(
-                        *ngFor='let provider of persistenceProviders',
-                        [ngValue]='provider.id'
-                    ) {{provider.displayName}}
-
-        .form-group(*ngIf='config.store.terminal.shell == "custom"')
-            label Custom shell
-            input.form-control(
-                type='text',
-                [(ngModel)]='config.store.terminal.customShell',
-                (ngModelChange)='config.save()',
-            )
+    .form-group.mr-3(*ngIf='persistenceProviders.length > 0')
+        label Session persistence
+        select.form-control(
+            [(ngModel)]='config.store.terminal.persistence',
+            (ngModelChange)='config.save()',
+        )
+            option([ngValue]='null') Off
+            option(
+                *ngFor='let provider of persistenceProviders',
+                [ngValue]='provider.id'
+            ) {{provider.displayName}}
                     
-    .col-md-6
-        .form-group
-            label Working directory
-            input.form-control(
-                type='text',
-                placeholder='Home directory',
-                [(ngModel)]='config.store.terminal.workingDirectory',
-                (ngModelChange)='config.save()',
-            )
+    .form-group
+        label Working directory
+        input.form-control(
+            type='text',
+            placeholder='Home directory',
+            [(ngModel)]='config.store.terminal.workingDirectory',
+            (ngModelChange)='config.save()',
+        )
             
+.form-group(*ngIf='config.store.terminal.shell == "custom"')
+    label Custom shell
+    input.form-control(
+        type='text',
+        [(ngModel)]='config.store.terminal.customShell',
+        (ngModelChange)='config.save()',
+    )
             
 
 h3.mt-3.mb-3 Behaviour
@@ -321,7 +317,7 @@ h3.mt-3.mb-3 Behaviour
             | Audible
     
 .form-group
-    label Right click behaviour
+    label Right click
     br
     .btn-group(
         [(ngModel)]='config.store.terminal.rightClick',
@@ -362,3 +358,9 @@ h3.mt-3.mb-3 Behaviour
         (ngModelChange)='config.save()',
         text='Copy on select',
     )
+    
+    checkbox(
+        [(ngModel)]='config.store.terminal.altIsMeta',
+        (ngModelChange)='config.save()',
+        text='Use Alt key as the Meta key',
+    )

terminus-terminal/src/components/terminalTab.component.ts

@@ -93,6 +93,7 @@ export class TerminalTabComponent extends BaseTabComponent {
             case 'ctrl-c':
                 if (this.hterm.getSelectionText()) {
                     this.hterm.copySelectionToClipboard()
+                    this.hterm.getDocument().getSelection().removeAllRanges()
                 } else {
                     this.sendInput('\x03')
                 }
@@ -370,6 +371,7 @@ export class TerminalTabComponent extends BaseTabComponent {
         preferenceManager.set('ctrl-plus-minus-zero-zoom', false)
         preferenceManager.set('scrollbar-visible', this.hostApp.platform === Platform.macOS)
         preferenceManager.set('copy-on-select', config.terminal.copyOnSelect)
+        preferenceManager.set('alt-is-meta', config.terminal.altIsMeta)
         preferenceManager.set('alt-sends-what', 'browser-key')
         preferenceManager.set('alt-gr-mode', 'ctrl-alt')
         preferenceManager.set('pass-alt-number', true)

terminus-terminal/src/config.ts

@@ -16,6 +16,7 @@ export class TerminalConfigProvider extends ConfigProvider {
             rightClick: 'menu',
             copyOnSelect: false,
             workingDirectory: '',
+            altIsMeta: false,
             colorScheme: {
                 __nonStructural: true,
                 name: 'Material',