From 1f434c1ef11fa55bab1718ea4e3ca8d115c0dfb1 Mon Sep 17 00:00:00 2001
From: Florrie <towerofnix@gmail.com>
Date: Sat, 8 Dec 2018 02:37:15 -0400
Subject: Mouse support
Not exactly the most elegant implementation, but it definitely works and
isn't really difficult to code around!
---
util/ansi.js | 4 ++++
util/telchars.js | 36 ++++++++++++++++++++++++++++++++++++
2 files changed, 40 insertions(+)
(limited to 'util')
diff --git a/util/ansi.js b/util/ansi.js
index f976c12..6d26f5d 100644
--- a/util/ansi.js
+++ b/util/ansi.js
@@ -104,6 +104,10 @@ const ansi = {
return `${ESC}[27m`
},
+ startTrackingMouse() {
+ return `${ESC}[?9h`
+ },
+
requestCursorPosition() {
// Requests the position of the cursor.
// Expect a stdin-result '\ESC[l;cR', where l is the line number (1-based),
diff --git a/util/telchars.js b/util/telchars.js
index dcb840f..b099f65 100644
--- a/util/telchars.js
+++ b/util/telchars.js
@@ -31,6 +31,42 @@ const telchars = {
isRight: buf => buf[0] === 0x1b && buf[2] === 0x43,
isLeft: buf => buf[0] === 0x1b && buf[2] === 0x44,
+ // Mouse constants!
+ mapMouseActionNum: num => {
+ let button = null
+
+ if (num & 64) {
+ if (num & 1) button = 'scroll-down'
+ else button = 'scroll-up'
+ } else {
+ const bits = num & 3
+ if (bits === 0) button = 'left'
+ else if (bits === 1) button = 'middle'
+ else if (bits === 2) button = 'right'
+ else if (bits === 3) button = 'release'
+ }
+
+ const shift = !!(num & 4)
+ const ctrl = !!(num & 16)
+
+ return {button, shift, ctrl}
+ },
+
+ isMouse: buf => buf[0] === 0x1b && buf[2] === 0x4d,
+ parseMouse: buf => {
+ if (!telchars.isMouse(buf)) {
+ return null
+ }
+
+ const actionNum = buf[3] - 32
+ const col = buf[4] - 32
+ const line = buf[5] - 32
+
+ const { button, shift, ctrl } = telchars.mapMouseActionNum(actionNum)
+
+ return {button, shift, ctrl, col, line, actionNum}
+ },
+
isShiftUp: buf => compareBufStr(buf, '\x1b[1;2A'),
isShiftDown: buf => compareBufStr(buf, '\x1b[1;2B'),
isShiftRight: buf => compareBufStr(buf, '\x1b[1;2C'),
--
cgit 1.3.0-6-gf8a5