From 10df6d114d9965254233cffbabdcfcf12d659959 Mon Sep 17 00:00:00 2001
From: "Harish.K" <harish2704@gmail.com>
Date: Sat, 18 Nov 2017 13:17:29 +0530
Subject: [PATCH] Initial commit

---
 index.js     | 144 +++++++++++++++++++++++++++++++++++++++++++++++++++
 package.json |  28 ++++++++++
 2 files changed, 172 insertions(+)
 create mode 100755 index.js
 create mode 100644 package.json

diff --git a/index.js b/index.js
new file mode 100755
index 0000000..de61f6e
--- /dev/null
+++ b/index.js
@@ -0,0 +1,144 @@
+#!/usr/bin/env node
+var _exec = require('child_process').execSync;
+
+function exec( cmd ){
+  console.log( 'exec: ', cmd );
+  return _exec( cmd );
+}
+
+function getSwayInfo( cmd ){
+  return JSON.parse( exec(`swaymsg -t ${cmd}`) );
+}
+
+/**
+ *  Workspace Manager
+ */
+function WpManager( Rows, Cols, monitorCount ){
+  var w = 0,
+    workspaces = [];
+  for (r = 0; r < Rows; r++) {
+    for (c = 0; c < Cols; c++) {
+      workspaces.push( {
+        left: c !== 0 && w-1,
+        right: ( c+1 ) !== Cols && w+1,
+        up: r!==0 && w-Cols,
+        down: (r+1)!==Rows && w+Cols,
+      });
+      w++;
+    }
+  }
+  this.workspaces = workspaces;
+  this.Rows = Rows;
+  this.Cols = Cols;
+  this.monitorCount = monitorCount;
+}
+
+/**
+ *  Workspace grid initialisation command generator.
+ *  Currenlty not working because `Workspace` command will not work through `swaymsg`.
+ *  it will work only if we put these commands on config file
+ */
+WpManager.prototype.getInitCmd = function(){
+  var outputs = getSwayInfo('get_outputs').map(v => v.name ),
+    outputCout = outputs.length,
+    totalWorkspaces = this.Rows * this.Cols,
+    cmd = [];
+
+  for( ws = 0; ws<totalWorkspaces; ws++ ){
+    for ( op = 0; op<outputCout; op++ ) {
+      cmd.push(`workspace ${( ws*outputCout ) + op+1 } output ${outputs[op]}` );
+    }
+  }
+  return cmd.join('; ');
+};
+
+/**
+ * Return the list of target workspaces.
+ *
+ * Given current focused workspace and switching direction. eg: ( 1, down )
+ * for a 3x3 grid in a dual monitor, it will reutrn [ 7, 8 ].
+ * for single monitor setup, it will return [ 4 ]
+ * For three monitor setup, it will return [ 10, 11, 12 ]
+ *
+ * @param current - current monitor
+ * @param dir - direction up|down|right|left
+ * @returns {Array<Number>} - list of target workspaces
+ */
+WpManager.prototype.getWorkspaces = function( current, dir ){
+  var monitorCount = this.monitorCount, out=[], i;
+  var targetw = this.workspaces[ Math.ceil( current/monitorCount ) - 1 ][dir];
+  if( targetw !== false ){
+    targetw = targetw*monitorCount;
+    for (i = monitorCount; i !== 0; i--) {
+      out.push( targetw+i );
+    }
+    return out;
+  }
+};
+
+/**
+ * Get swaymsg command for switching current Workspace to <dir> direction
+ *
+ * @param swayWorkspace
+ * @param dir
+ * @param isMove
+ * @returns {String} - swaymsg command
+ */
+WpManager.prototype.getCmd = function( swayWorkspace, dir, isMove ){
+  var currentWS = swayWorkspace.num, currentOutput = swayWorkspace.output;
+
+  var ws = this.getWorkspaces( currentWS, dir );
+  if(!ws){
+    return ;
+  }
+  var out = ws.map( v => `workspace ${v}` );
+  if( isMove ){
+    var tws= ws[ currentWS%this.monitorCount];
+    out.unshift( `move container to workspace ${ tws }` );
+  }
+  out.push( `focus output ${ currentOutput }` );
+  return out.join('; ');
+};
+
+
+function main(){
+  var dir = process.argv[2],
+    isMove=false,
+    ROWS=3,
+    COLS=3,
+    wm,
+    cmd,
+    outputInfo,
+    workspaceInfo;
+
+  if( dir === '-m' ){
+    isMove=true;
+    dir = process.argv[3];
+  }
+  if( [ 'up', 'down', 'right', 'left' ].indexOf( dir ) === -1 ){
+    console.log([
+      'Usage:',
+      '\tsway-wp-switch [ -m ] <up|down|right|left>',
+      '\n',
+      'Options:',
+      '\t-m\t move current window to new workspace while switching'
+    ].join('\n'));
+    return;
+  }
+
+  outputInfo = getSwayInfo('get_outputs');
+  wm = new WpManager( ROWS, COLS, outputInfo.length );
+  if( dir === '-i' ){
+    cmd = wm.getInitCmd();
+  } else {
+    workspaceInfo = getSwayInfo('get_workspaces').find( v=>v.focused );
+    cmd = wm.getCmd( workspaceInfo, dir, isMove);
+  }
+
+  if( cmd ){
+    exec(`swaymsg -t command "${cmd}"`);
+  }
+}
+
+
+main();
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..cab3966
--- /dev/null
+++ b/package.json
@@ -0,0 +1,28 @@
+{
+  "name": "sway-workspace-grid",
+  "version": "0.0.1",
+  "description": "A simple utility to organize sway workspaces as M x N grid with multi-monitor support Edit",
+  "main": "index.js",
+  "bin":{
+    "sway-wp-switch": "./index.js"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/harish2704/sway-workspace-grid.git"
+  },
+  "keywords": [
+    "sway",
+    "i3",
+    "workspace",
+    "grid"
+  ],
+  "author": "Harish.K <harish2704@gmail.com> (https://github.com/harish2704)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/harish2704/sway-workspace-grid/issues"
+  },
+  "homepage": "https://github.com/harish2704/sway-workspace-grid#readme"
+}