From ec477f619b8b9eb7b555c2abe9a15e7acb9b5053 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Miroslav=20=C5=A0ediv=C3=BD?= <sedivy.miro@gmail.com>
Date: Mon, 1 Nov 2021 20:49:59 +0100
Subject: [PATCH] inactive cursors enabled from server.

---
 src/component/cursors.vue          |  4 ++--
 src/component/internal/messages.ts |  4 ++--
 src/component/main.vue             | 12 +++++++++---
 src/component/types/messages.ts    |  1 +
 src/component/types/state.ts       | 13 +++++++++++--
 5 files changed, 25 insertions(+), 9 deletions(-)

diff --git a/src/component/cursors.vue b/src/component/cursors.vue
index d711840e..944845a3 100644
--- a/src/component/cursors.vue
+++ b/src/component/cursors.vue
@@ -16,7 +16,7 @@
 <script lang="ts">
   import { Vue, Component, Ref, Prop, Watch } from 'vue-property-decorator'
 
-  import { SessionCursor } from './types/state'
+  import { Cursor } from './types/state'
   import { CursorDrawFunction, Dimension } from './types/cursors'
 
   const CANVAS_SCALE = 2
@@ -38,7 +38,7 @@
     private readonly canvasSize!: Dimension
 
     @Prop()
-    private readonly cursors!: SessionCursor[]
+    private readonly cursors!: Cursor[]
 
     @Prop()
     private readonly cursorDraw!: CursorDrawFunction | null
diff --git a/src/component/internal/messages.ts b/src/component/internal/messages.ts
index 916810e8..f4d108b6 100644
--- a/src/component/internal/messages.ts
+++ b/src/component/internal/messages.ts
@@ -83,6 +83,7 @@ export class NekoMessages extends EventEmitter<NekoEvents> {
     this._localLog.debug(`EVENT.SYSTEM_INIT`)
     Vue.set(this._state, 'session_id', conf.session_id)
     Vue.set(this._state.control, 'implicit_hosting', conf.implicit_hosting)
+    Vue.set(this._state.cursors, 'enabled', conf.inactive_cursors)
     Vue.set(this._state.connection, 'screencast', conf.screencast_enabled)
     Vue.set(this._state.connection.webrtc, 'videos', conf.webrtc.videos)
 
@@ -189,8 +190,7 @@ export class NekoMessages extends EventEmitter<NekoEvents> {
   }
 
   protected [EVENT.SESSION_CURSORS](cursors: message.SessionCursor[]) {
-    // TODO: State retention logic.
-    Vue.set(this._state, 'cursors', cursors)
+    Vue.set(this._state.cursors, 'list', cursors)
   }
 
   /////////////////////////////
diff --git a/src/component/main.vue b/src/component/main.vue
index 8a0c4ba6..105935d2 100644
--- a/src/component/main.vue
+++ b/src/component/main.vue
@@ -4,10 +4,11 @@
       <video v-show="!screencast" ref="video" :autoplay="autoplay" :muted="autoplay" playsinline />
       <neko-screencast v-show="screencast" :enabled="screencast" :api="api.room" />
       <neko-cursors
+        v-if="state.cursors.enabled"
         :sessionId="state.session_id"
         :screenSize="state.screen.size"
         :canvasSize="canvasSize"
-        :cursors="state.cursors"
+        :cursors="state.cursors.list"
       />
       <neko-overlay
         :webrtc="connection.webrtc"
@@ -22,7 +23,7 @@
         "
         :cursorDraw="cursorDrawFunction"
         :implicitControl="state.control.implicit_hosting && state.sessions[state.session_id].profile.can_host"
-        :inactiveCursors="true"
+        :inactiveCursors="state.cursors.enabled"
         @implicitControlRequest="connection.websocket.send('control/request')"
         @implicitControlRelease="connection.websocket.send('control/release')"
         @updateKeyboardModifiers="updateKeyboardModifiers($event)"
@@ -168,7 +169,10 @@
       },
       session_id: null,
       sessions: {},
-      cursors: [],
+      cursors: {
+        enabled: false,
+        list: [],
+      },
     } as NekoState
 
     /////////////////////////////
@@ -545,6 +549,8 @@
       Vue.set(this.state.screen, 'configurations', [])
       Vue.set(this.state, 'session_id', null)
       Vue.set(this.state, 'sessions', {})
+      Vue.set(this.state.cursors, 'enabled', false)
+      Vue.set(this.state.cursors, 'list', [])
 
       // webrtc
       Vue.set(this.state.connection.webrtc, 'stats', null)
diff --git a/src/component/types/messages.ts b/src/component/types/messages.ts
index 8446b118..a60c3e36 100644
--- a/src/component/types/messages.ts
+++ b/src/component/types/messages.ts
@@ -14,6 +14,7 @@ export interface SystemInit {
   screen_size: ScreenSize
   sessions: Record<string, SessionData>
   implicit_hosting: boolean
+  inactive_cursors: boolean
   screencast_enabled: boolean
   webrtc: SystemWebRTC
 }
diff --git a/src/component/types/state.ts b/src/component/types/state.ts
index cf6e975e..4c19d599 100644
--- a/src/component/types/state.ts
+++ b/src/component/types/state.ts
@@ -9,7 +9,7 @@ export default interface State {
   screen: Screen
   session_id: string | null
   sessions: Record<string, Session>
-  cursors: SessionCursor[]
+  cursors: Cursors
 }
 
 /////////////////////////////
@@ -120,7 +120,16 @@ export interface Session {
   state: SessionState
 }
 
-export interface SessionCursor {
+/////////////////////////////
+// Cursors
+/////////////////////////////
+
+export interface Cursors {
+  enabled: boolean
+  list: Cursor[]
+}
+
+export interface Cursor {
   id: string
   x: number
   y: number