Translate pointer events into touch events.

lib/units/device/plugins/vnc/index.js

@@ -11,10 +11,12 @@ var lifecycle = require('../../../../util/lifecycle')
 
 var VncServer = require('./util/server')
 var VncConnection = require('./util/connection')
+var PointerTranslator = require('./util/pointertranslator')
 
 module.exports = syrup.serial()
   .dependency(require('../screen/stream'))
-  .define(function(options, screenStream) {
+  .dependency(require('../touch'))
+  .define(function(options, screenStream, touch) {
     var log = logger.createLogger('device:plugins:vnc')
 
     function createServer() {
@@ -63,6 +65,24 @@ module.exports = syrup.serial()
           , updateRequests: 0
           }
 
+          var pointerTranslator = new PointerTranslator()
+
+          pointerTranslator.on('touchdown', function(event) {
+            touch.touchDown(event)
+          })
+
+          pointerTranslator.on('touchmove', function(event) {
+            touch.touchMove(event)
+          })
+
+          pointerTranslator.on('touchup', function(event) {
+            touch.touchUp(event)
+          })
+
+          pointerTranslator.on('touchcommit', function() {
+            touch.touchCommit()
+          })
+
           function vncStartListener(frameProducer) {
             return new Promise(function(resolve/*, reject*/) {
               connState.frameWidth = frameProducer.banner.virtualWidth
@@ -126,6 +146,10 @@ module.exports = syrup.serial()
             maybeSendFrame()
           })
 
+          conn.on('pointer', function(event) {
+            pointerTranslator.push(event)
+          })
+
           conn.on('close', function() {
             screenStream.broadcastSet.remove(id)
           })

lib/units/device/plugins/vnc/util/connection.js

@@ -21,8 +21,8 @@ function VncConnection(conn, options) {
 
   this._serverVersion = VncConnection.V3_008
   this._serverSupportedSecurity = [VncConnection.SECURITY_NONE]
-  this._serverWidth = 720
-  this._serverHeight = 1280
+  this._serverWidth = 1080
+  this._serverHeight = 1920
   this._serverPixelFormat = new PixelFormat({
     bitsPerPixel: 32
   , depth: 24
@@ -368,9 +368,11 @@ VncConnection.prototype._read = function() {
         break
       case VncConnection.STATE_NEED_CLIENT_MESSAGE_POINTEREVENT:
         if ((chunk = this._consume(5))) {
-          // buttonMask = chunk[0]
-          // xPosition = chunk.readUInt16BE(1, true)
-          // yPosition = chunk.readUInt16BE(3, true)
+          this.emit('pointer', {
+            buttonMask: chunk[0]
+          , xPosition: chunk.readUInt16BE(1, true) / this._serverWidth
+          , yPosition: chunk.readUInt16BE(3, true) / this._serverHeight
+          })
           this._changeState(VncConnection.STATE_NEED_CLIENT_MESSAGE)
         }
         break

lib/units/device/plugins/vnc/util/pointertranslator.js

@@ -0,0 +1,66 @@
+var util = require('util')
+
+var EventEmitter = require('eventemitter3').EventEmitter
+
+function PointerTranslator() {
+  this.previousEvent = null
+}
+
+util.inherits(PointerTranslator, EventEmitter)
+
+PointerTranslator.prototype.push = function(event) {
+  if (event.buttonMask & 0xFE) {
+    // Non-primary buttons included, ignore.
+    return
+  }
+
+  if (this.previousEvent) {
+    var buttonChanges = event.buttonMask ^ this.previousEvent.buttonMask
+
+    // If the primary button changed, we have an up/down event.
+    if (buttonChanges & 1) {
+      // If it's pressed now, that's a down event.
+      if (event.buttonMask & 1) {
+        this.emit('touchdown', {
+          contact: 1
+        , x: event.xPosition
+        , y: event.yPosition
+        })
+        this.emit('touchcommit')
+      }
+      // It's not pressed, so we have an up event.
+      else {
+        this.emit('touchup', {
+          contact: 1
+        })
+        this.emit('touchcommit')
+      }
+    }
+    // Otherwise, if we're still holding the primary button down,
+    // that's a move event.
+    else if (event.buttonMask & 1) {
+      this.emit('touchmove', {
+        contact: 1
+      , x: event.xPosition
+      , y: event.yPosition
+      })
+      this.emit('touchcommit')
+    }
+  }
+  else {
+    // If it's the first event we get and the primary button's pressed,
+    // it's a down event.
+    if (event.buttonMask & 1) {
+      this.emit('touchdown', {
+        contact: 1
+      , x: event.xPosition
+      , y: event.yPosition
+      })
+      this.emit('touchcommit')
+    }
+  }
+
+  this.previousEvent = event
+}
+
+module.exports = PointerTranslator