From 7f0d08d4d394bd3951c0f2a5d42288795743c880 Mon Sep 17 00:00:00 2001
From: Dmitry Maksyoma <ledestin@gmail.com>
Date: Thu, 6 Oct 2022 18:54:12 +1300
Subject: [PATCH] Refactor: extract XVNC_BUTTONS

---
 app/ui.js                 |  6 +++---
 core/mousebuttonmapper.js | 14 ++++++++++++++
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/app/ui.js b/app/ui.js
index d8b77eee..48d9af8e 100644
--- a/app/ui.js
+++ b/app/ui.js
@@ -41,7 +41,7 @@ import KeyTable from "../core/input/keysym.js";
 import keysyms from "../core/input/keysymdef.js";
 import Keyboard from "../core/input/keyboard.js";
 import RFB from "../core/rfb.js";
-import MouseButtonMapper from "../core/mousebuttonmapper.js";
+import { MouseButtonMapper, XVNC_BUTTONS } from "../core/mousebuttonmapper.js";
 import * as WebUtil from "./webutil.js";
 
 const PAGE_TITLE = "KasmVNC";
@@ -274,8 +274,8 @@ const UI = {
             return mouseButtonMapper;
         }
 
-        mouseButtonMapper.set(3, 7);
-        mouseButtonMapper.set(4, 8);
+        mouseButtonMapper.set(3, XVNC_BUTTONS.BACK_BUTTON);
+        mouseButtonMapper.set(4, XVNC_BUTTONS.FORWARD_BUTTON);
         WebUtil.writeSetting("mouseButtonMapper", mouseButtonMapper.dump());
 
         return mouseButtonMapper;
diff --git a/core/mousebuttonmapper.js b/core/mousebuttonmapper.js
index 6b7fe1ee..565e813b 100644
--- a/core/mousebuttonmapper.js
+++ b/core/mousebuttonmapper.js
@@ -1,3 +1,15 @@
+export const XVNC_BUTTONS = {
+    LEFT_BUTTON: 0,
+    MIDDLE_BUTTON: 1,
+    RIGHT_BUTTON: 2,
+    TURN_SCROLL_WHEEL_UP: 3,
+    TURN_SCROLL_WHEEL_DOWN: 4,
+    PUSH_SCROLL_WHEEL_LEFT: 5,
+    PUSH_SCROLL_WHEEL_RIGHT: 6,
+    BACK_BUTTON: 7,
+    FORWARD_BUTTON: 8
+};
+
 export default class MouseButtonMapper {
     constructor() {
         this.map = new Map();
@@ -47,3 +59,5 @@ export default class MouseButtonMapper {
         return value;
     }
 }
+
+export { MouseButtonMapper };