From c43137b8f6cbe2b20a06b860b828c3af3179f02a Mon Sep 17 00:00:00 2001
From: Eugene Pankov <e@ajenti.org>
Date: Sat, 30 Jul 2022 00:05:44 +0200
Subject: [PATCH] fixed #194 - added hotkeys to scroll the terminal

---
 tabby-terminal/src/api/baseTerminalTab.component.ts |  9 +++++++++
 tabby-terminal/src/config.ts                        | 13 ++++++++++++-
 tabby-terminal/src/frontends/frontend.ts            |  3 +++
 tabby-terminal/src/frontends/xtermFrontend.ts       |  8 ++++++++
 tabby-terminal/src/hotkeys.ts                       | 12 ++++++++++++
 5 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/tabby-terminal/src/api/baseTerminalTab.component.ts b/tabby-terminal/src/api/baseTerminalTab.component.ts
index 526860ca63..10665ee19e 100644
--- a/tabby-terminal/src/api/baseTerminalTab.component.ts
+++ b/tabby-terminal/src/api/baseTerminalTab.component.ts
@@ -279,6 +279,15 @@ export class BaseTerminalTabComponent extends BaseTabComponent implements OnInit
                 case 'copy-current-path':
                     this.copyCurrentPath()
                     break
+                case 'scroll-to-top':
+                    this.frontend?.scrollToTop()
+                    break
+                case 'scroll-up':
+                    this.frontend?.scrollPages(-1)
+                    break
+                case 'scroll-down':
+                    this.frontend?.scrollPages(1)
+                    break
                 case 'scroll-to-bottom':
                     this.frontend?.scrollToBottom()
                     break
diff --git a/tabby-terminal/src/config.ts b/tabby-terminal/src/config.ts
index a865597462..e2b78584db 100644
--- a/tabby-terminal/src/config.ts
+++ b/tabby-terminal/src/config.ts
@@ -5,7 +5,6 @@ export class TerminalConfigProvider extends ConfigProvider {
     defaults = {
         hotkeys: {
             'copy-current-path': [],
-            'scroll-to-bottom': [],
         },
         terminal: {
             frontend: 'xterm',
@@ -113,6 +112,10 @@ export class TerminalConfigProvider extends ConfigProvider {
                 'pane-focus-all': [
                     '⌘-Shift-I',
                 ],
+                'scroll-to-top': ['Shift-PageUp'],
+                'scroll-up': ['PageUp'],
+                'scroll-down': ['PageDown'],
+                'scroll-to-bottom': ['Shift-PageDown'],
             },
         },
         [Platform.Windows]: {
@@ -157,6 +160,10 @@ export class TerminalConfigProvider extends ConfigProvider {
                 'pane-focus-all': [
                     'Ctrl-Shift-I',
                 ],
+                'scroll-to-top': ['Ctrl-PageUp'],
+                'scroll-up': ['PageUp'],
+                'scroll-down': ['PageDown'],
+                'scroll-to-bottom': ['Ctrl-PageDown'],
             },
         },
         [Platform.Linux]: {
@@ -199,6 +206,10 @@ export class TerminalConfigProvider extends ConfigProvider {
                 'pane-focus-all': [
                     'Ctrl-Shift-I',
                 ],
+                'scroll-to-top': ['Ctrl-PageUp'],
+                'scroll-up': ['PageUp'],
+                'scroll-down': ['PageDown'],
+                'scroll-to-bottom': ['Ctrl-PageDown'],
             },
         },
     }
diff --git a/tabby-terminal/src/frontends/frontend.ts b/tabby-terminal/src/frontends/frontend.ts
index 54056b7268..72a08ac919 100644
--- a/tabby-terminal/src/frontends/frontend.ts
+++ b/tabby-terminal/src/frontends/frontend.ts
@@ -75,6 +75,9 @@ export abstract class Frontend {
     abstract write (data: string): Promise<void>
     abstract clear (): void
     abstract visualBell (): void
+
+    abstract scrollToTop (): void
+    abstract scrollPages (pages: number): void
     abstract scrollToBottom (): void
 
     abstract configure (): void
diff --git a/tabby-terminal/src/frontends/xtermFrontend.ts b/tabby-terminal/src/frontends/xtermFrontend.ts
index 076606ec3e..532920d6e4 100644
--- a/tabby-terminal/src/frontends/xtermFrontend.ts
+++ b/tabby-terminal/src/frontends/xtermFrontend.ts
@@ -328,6 +328,14 @@ export class XTermFrontend extends Frontend {
         }
     }
 
+    scrollToTop (): void {
+        this.xterm.scrollToTop()
+    }
+
+    scrollPages (pages: number): void {
+        this.xterm.scrollPages(pages)
+    }
+
     scrollToBottom (): void {
         this.xtermCore._scrollToBottom()
     }
diff --git a/tabby-terminal/src/hotkeys.ts b/tabby-terminal/src/hotkeys.ts
index 878cd2fa34..3346af456b 100644
--- a/tabby-terminal/src/hotkeys.ts
+++ b/tabby-terminal/src/hotkeys.ts
@@ -73,6 +73,18 @@ export class TerminalHotkeyProvider extends HotkeyProvider {
             id: 'pane-focus-all',
             name: this.translate.instant('Focus all panes at once (broadcast)'),
         },
+        {
+            id: 'scroll-to-top',
+            name: this.translate.instant('Scroll terminal to top'),
+        },
+        {
+            id: 'scroll-up',
+            name: this.translate.instant('Scroll terminal one page up'),
+        },
+        {
+            id: 'scroll-down',
+            name: this.translate.instant('Scroll terminal one page down'),
+        },
         {
             id: 'scroll-to-bottom',
             name: this.translate.instant('Scroll terminal to bottom'),