From 89e4a80a3796fb04e1a93bdf7f9fdfcaa9f3fa9c Mon Sep 17 00:00:00 2001
From: Eugene Pankov <john.pankov@gmail.com>
Date: Fri, 8 Mar 2019 12:24:42 +0100
Subject: [PATCH] fixed xterm hotkeys - fixed #696

---
 terminus-terminal/src/frontends/frontend.ts   |  3 ++-
 .../src/frontends/xtermFrontend.ts            | 23 ++++++++++++++++++-
 .../src/services/terminalFrontend.service.ts  |  9 ++++++--
 3 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/terminus-terminal/src/frontends/frontend.ts b/terminus-terminal/src/frontends/frontend.ts
index 6efc3f69..fae0de68 100644
--- a/terminus-terminal/src/frontends/frontend.ts
+++ b/terminus-terminal/src/frontends/frontend.ts
@@ -1,6 +1,6 @@
 import { Observable, Subject, AsyncSubject, ReplaySubject, BehaviorSubject } from 'rxjs'
 import { ResizeEvent } from '../api'
-import { ConfigService, ThemesService } from 'terminus-core'
+import { ConfigService, ThemesService, HotkeysService } from 'terminus-core'
 
 /**
  * Extend to add support for a different VT frontend implementation
@@ -8,6 +8,7 @@ import { ConfigService, ThemesService } from 'terminus-core'
 export abstract class Frontend {
     configService: ConfigService
     themesService: ThemesService
+    hotkeysService: HotkeysService
 
     enableResizing = true
     protected ready = new AsyncSubject<void>()
diff --git a/terminus-terminal/src/frontends/xtermFrontend.ts b/terminus-terminal/src/frontends/xtermFrontend.ts
index 7b2b134b..0c541392 100644
--- a/terminus-terminal/src/frontends/xtermFrontend.ts
+++ b/terminus-terminal/src/frontends/xtermFrontend.ts
@@ -42,6 +42,21 @@ export class XTermFrontend extends Frontend {
                 this.copySelection()
             }
         })
+
+        const keyboardEventHandler = (name: string, event: KeyboardEvent) => {
+            this.hotkeysService.pushKeystroke(name, event)
+            let ret = true
+            if (this.hotkeysService.getCurrentPartiallyMatchedHotkeys().length !== 0) {
+                event.stopPropagation()
+                event.preventDefault()
+                ret = false
+            }
+            this.hotkeysService.processKeystrokes()
+            this.hotkeysService.emitKeyEvent(event)
+
+            return ret
+        }
+
         this.xterm.attachCustomKeyEventHandler((event: KeyboardEvent) => {
             if ((event.getModifierState('Control') || event.getModifierState('Meta')) && event.key.toLowerCase() === 'v') {
                 event.preventDefault()
@@ -50,7 +65,8 @@ export class XTermFrontend extends Frontend {
             if (event.getModifierState('Meta') && event.key.startsWith('Arrow')) {
                 return false
             }
-            return true
+
+            return keyboardEventHandler('keydown', event)
         })
 
         this.xtermCore._scrollToBottom = this.xtermCore.scrollToBottom.bind(this.xtermCore)
@@ -63,6 +79,11 @@ export class XTermFrontend extends Frontend {
                 // tends to throw when element wasn't shown yet
             }
         }
+
+        this.xtermCore._keyUp = (e: KeyboardEvent) => {
+            this.xtermCore.updateCursorStyle(e)
+            keyboardEventHandler('keyup', e)
+        }
     }
 
     attach (host: HTMLElement): void {
diff --git a/terminus-terminal/src/services/terminalFrontend.service.ts b/terminus-terminal/src/services/terminalFrontend.service.ts
index 3cb7b92d..6405a0da 100644
--- a/terminus-terminal/src/services/terminalFrontend.service.ts
+++ b/terminus-terminal/src/services/terminalFrontend.service.ts
@@ -1,5 +1,5 @@
 import { Injectable } from '@angular/core'
-import { ConfigService, ThemesService } from 'terminus-core'
+import { ConfigService, ThemesService, HotkeysService } from 'terminus-core'
 import { Frontend } from '../frontends/frontend'
 import { HTermFrontend } from '../frontends/htermFrontend'
 import { XTermFrontend } from '../frontends/xtermFrontend'
@@ -10,7 +10,11 @@ export class TerminalFrontendService {
     private containers = new WeakMap<BaseSession, Frontend>()
 
     /** @hidden */
-    constructor (private config: ConfigService, private themes: ThemesService) { }
+    constructor (
+        private config: ConfigService,
+        private themes: ThemesService,
+        private hotkeys: HotkeysService,
+    ) { }
 
     getFrontend (session?: BaseSession): Frontend {
         if (!session) {
@@ -19,6 +23,7 @@ export class TerminalFrontendService {
                 : new HTermFrontend()
             frontend.configService = this.config
             frontend.themesService = this.themes
+            frontend.hotkeysService = this.hotkeys
             return frontend
         }
         if (!this.containers.has(session)) {