Refactor: Rename peer connection variables

src/content/capture/canvas-pc/index.html

@@ -50,7 +50,7 @@ <h1>
     <p>View the browser console to see logging.</p>
 
     <p>Several variables are in global scope, so you can inspect them from the console: <code>canvas</code>,
-        <code>video</code>, <code>localPeerConnection</code>, <code>remotePeerConnection</code> and <code>stream</code>.
+        <code>video</code>, <code>pc1</code>, <code>pc2</code> and <code>stream</code>.
     </p>
 
     <p>For more demos and information about <code>captureStream()</code>, see <a

src/content/datachannel/basic/index.html

@@ -56,7 +56,7 @@ <h2>Receive</h2>
 
     <p>View the console to see logging.</p>
 
-    <p>The <code>RTCPeerConnection</code> objects <code>localConnection</code> and <code>remoteConnection</code> are in
+    <p>The <code>RTCPeerConnection</code> objects <code>pc1</code> and <code>pc2</code> are in
         global scope, so you can inspect them in the console as well.</p>
 
     <p>For more information about RTCDataChannel, see <a

src/content/datachannel/basic/js/main.js

@@ -8,8 +8,8 @@
 
 'use strict';
 
-let localConnection;
-let remoteConnection;
+let pc1;
+let pc2;
 let sendChannel;
 let receiveChannel;
 const dataChannelSend = document.querySelector('textarea#dataChannelSend');
@@ -33,27 +33,27 @@ function disableSendButton() {
 function createConnection() {
   dataChannelSend.placeholder = '';
   const servers = null;
-  window.localConnection = localConnection = new RTCPeerConnection(servers);
-  console.log('Created local peer connection object localConnection');
+  pc1 = new RTCPeerConnection(servers);
+  console.log('Created local peer connection object pc1');
 
-  sendChannel = localConnection.createDataChannel('sendDataChannel');
+  sendChannel = pc1.createDataChannel('sendDataChannel');
   console.log('Created send data channel');
 
-  localConnection.onicecandidate = e => {
-    onIceCandidate(localConnection, e);
+  pc1.onicecandidate = e => {
+    onIceCandidate(pc1, e);
   };
   sendChannel.onopen = onSendChannelStateChange;
   sendChannel.onclose = onSendChannelStateChange;
 
-  window.remoteConnection = remoteConnection = new RTCPeerConnection(servers);
-  console.log('Created remote peer connection object remoteConnection');
+  pc2 = new RTCPeerConnection(servers);
+  console.log('Created remote peer connection object pc2');
 
-  remoteConnection.onicecandidate = e => {
-    onIceCandidate(remoteConnection, e);
+  pc2.onicecandidate = e => {
+    onIceCandidate(pc2, e);
   };
-  remoteConnection.ondatachannel = receiveChannelCallback;
+  pc2.ondatachannel = receiveChannelCallback;
 
-  localConnection.createOffer().then(
+  pc1.createOffer().then(
       gotDescription1,
       onCreateSessionDescriptionError
   );
@@ -77,10 +77,10 @@ function closeDataChannels() {
   console.log('Closed data channel with label: ' + sendChannel.label);
   receiveChannel.close();
   console.log('Closed data channel with label: ' + receiveChannel.label);
-  localConnection.close();
-  remoteConnection.close();
-  localConnection = null;
-  remoteConnection = null;
+  pc1.close();
+  pc2.close();
+  pc1 = null;
+  pc2 = null;
   console.log('Closed peer connections');
   startButton.disabled = false;
   sendButton.disabled = true;
@@ -93,27 +93,27 @@ function closeDataChannels() {
 }
 
 function gotDescription1(desc) {
-  localConnection.setLocalDescription(desc);
-  console.log(`Offer from localConnection\n${desc.sdp}`);
-  remoteConnection.setRemoteDescription(desc);
-  remoteConnection.createAnswer().then(
+  pc1.setLocalDescription(desc);
+  console.log(`Offer from pc1\n${desc.sdp}`);
+  pc2.setRemoteDescription(desc);
+  pc2.createAnswer().then(
       gotDescription2,
       onCreateSessionDescriptionError
   );
 }
 
 function gotDescription2(desc) {
-  remoteConnection.setLocalDescription(desc);
-  console.log(`Answer from remoteConnection\n${desc.sdp}`);
-  localConnection.setRemoteDescription(desc);
+  pc2.setLocalDescription(desc);
+  console.log(`Answer from pc2\n${desc.sdp}`);
+  pc1.setRemoteDescription(desc);
 }
 
 function getOtherPc(pc) {
-  return (pc === localConnection) ? remoteConnection : localConnection;
+  return (pc === pc1) ? pc2 : pc1;
 }
 
 function getName(pc) {
-  return (pc === localConnection) ? 'localPeerConnection' : 'remotePeerConnection';
+  return (pc === pc1) ? 'pc1' : 'pc2';
 }
 
 function onIceCandidate(pc, event) {

src/content/datachannel/basic/js/test.js

@@ -30,10 +30,10 @@ describe('datachannel basic', () => {
 
     await Promise.all([
       driver.wait(() => driver.executeScript(() => {
-        return localConnection && localConnection.connectionState === 'connected'; // eslint-disable-line no-undef
+        return pc1 && pc1.connectionState === 'connected'; // eslint-disable-line no-undef
       })),
       await driver.wait(() => driver.executeScript(() => {
-        return remoteConnection && remoteConnection.connectionState === 'connected'; // eslint-disable-line no-undef
+        return pc2 && pc2.connectionState === 'connected'; // eslint-disable-line no-undef
       })),
     ]);
     await driver.wait(() => driver.findElement(webdriver.By.id('sendButton')).isEnabled());

src/content/datachannel/datatransfer/index.html

@@ -77,7 +77,7 @@ <h1><a href="https://webrtc.github.io/samples/" title="WebRTC samples homepage">
     <section>
         <p>View the console to see logging.</p>
 
-        <p>The <code>RTCPeerConnection</code> objects <code>localConnection</code> and <code>remoteConnection</code> are
+        <p>The <code>RTCPeerConnection</code> objects <code>pc1</code> and <code>pc2</code> are
             in global scope, so you can inspect them in the console as well.</p>
 
         <p>For more information about RTCDataChannel, see <a

src/content/datachannel/datatransfer/js/main.js

@@ -9,8 +9,8 @@
 'use strict';
 const MAX_CHUNK_SIZE = 262144;
 
-let localConnection;
-let remoteConnection;
+let pc1;
+let pc2;
 let sendChannel;
 let receiveChannel;
 let chunkSize;
@@ -61,28 +61,28 @@ async function createConnection() {
   const number = Number.parseInt(megsToSend.value);
   bytesToSend = number * 1024 * 1024;
 
-  localConnection = new RTCPeerConnection(servers);
+  pc1 = new RTCPeerConnection(servers);
 
   // Let's make a data channel!
   const dataChannelParams = {ordered: false};
   if (orderedCheckbox.checked) {
     dataChannelParams.ordered = true;
   }
-  sendChannel = localConnection.createDataChannel('sendDataChannel', dataChannelParams);
+  sendChannel = pc1.createDataChannel('sendDataChannel', dataChannelParams);
   sendChannel.addEventListener('open', onSendChannelOpen);
   sendChannel.addEventListener('close', onSendChannelClosed);
   console.log('Created send data channel: ', sendChannel);
 
-  console.log('Created local peer connection object localConnection: ', localConnection);
+  console.log('Created local peer connection object pc1: ', pc1);
 
-  localConnection.addEventListener('icecandidate', e => onIceCandidate(localConnection, e));
+  pc1.addEventListener('icecandidate', e => onIceCandidate(pc1, e));
 
-  remoteConnection = new RTCPeerConnection(servers);
-  remoteConnection.addEventListener('icecandidate', e => onIceCandidate(remoteConnection, e));
-  remoteConnection.addEventListener('datachannel', receiveChannelCallback);
+  pc2 = new RTCPeerConnection(servers);
+  pc2.addEventListener('icecandidate', e => onIceCandidate(pc2, e));
+  pc2.addEventListener('datachannel', receiveChannelCallback);
 
   try {
-    const localOffer = await localConnection.createOffer();
+    const localOffer = await pc1.createOffer();
     await handleLocalDescription(localOffer);
   } catch (e) {
     console.error('Failed to create session description: ', e);
@@ -143,32 +143,32 @@ function startSendingData() {
 }
 
 function maybeReset() {
-  if (localConnection === null && remoteConnection === null) {
+  if (pc1 === null && pc2 === null) {
     sendButton.disabled = false;
     megsToSend.disabled = false;
   }
 }
 
 async function handleLocalDescription(desc) {
-  localConnection.setLocalDescription(desc);
-  console.log('Offer from localConnection:\n', desc.sdp);
-  remoteConnection.setRemoteDescription(desc);
+  pc1.setLocalDescription(desc);
+  console.log('Offer from pc1:\n', desc.sdp);
+  pc2.setRemoteDescription(desc);
   try {
-    const remoteAnswer = await remoteConnection.createAnswer();
+    const remoteAnswer = await pc2.createAnswer();
     handleRemoteAnswer(remoteAnswer);
   } catch (e) {
     console.error('Error when creating remote answer: ', e);
   }
 }
 
 function handleRemoteAnswer(desc) {
-  remoteConnection.setLocalDescription(desc);
-  console.log('Answer from remoteConnection:\n', desc.sdp);
-  localConnection.setRemoteDescription(desc);
+  pc2.setLocalDescription(desc);
+  console.log('Answer from pc2:\n', desc.sdp);
+  pc1.setRemoteDescription(desc);
 }
 
 function getOtherPc(pc) {
-  return (pc === localConnection) ? remoteConnection : localConnection;
+  return (pc === pc1) ? pc2 : pc1;
 }
 
 async function onIceCandidate(pc, event) {
@@ -209,7 +209,7 @@ function onReceiveMessageCallback(event) {
 function onSendChannelOpen() {
   console.log('Send channel is open');
 
-  chunkSize = Math.min(localConnection.sctp.maxMessageSize, MAX_CHUNK_SIZE);
+  chunkSize = Math.min(pc1.sctp.maxMessageSize, MAX_CHUNK_SIZE);
   console.log('Determined chunk size: ', chunkSize);
   dataString = new Array(chunkSize).fill('X').join('');
   lowWaterMark = chunkSize; // A single chunk
@@ -227,8 +227,8 @@ function onSendChannelOpen() {
 
 function onSendChannelClosed() {
   console.log('Send channel is closed');
-  localConnection.close();
-  localConnection = null;
+  pc1.close();
+  pc1 = null;
   console.log('Closed local peer connection');
   maybeReset();
   console.log('Average time spent in send() (ms): ' +
@@ -241,8 +241,8 @@ function onSendChannelClosed() {
 
 function onReceiveChannelClosed() {
   console.log('Receive channel is closed');
-  remoteConnection.close();
-  remoteConnection = null;
+  pc2.close();
+  pc2 = null;
   console.log('Closed remote peer connection');
   maybeReset();
 }

src/content/datachannel/datatransfer/js/test.js

@@ -38,16 +38,16 @@ describe('datachannel datatransfer', () => {
 
     await Promise.all([
       driver.wait(() => driver.executeScript(() => {
-        return localConnection && localConnection.connectionState === 'connected'; // eslint-disable-line no-undef
+        return pc1 && pc1.connectionState === 'connected'; // eslint-disable-line no-undef
       })),
       await driver.wait(() => driver.executeScript(() => {
-        return remoteConnection && remoteConnection.connectionState === 'connected'; // eslint-disable-line no-undef
+        return pc2 && pc2.connectionState === 'connected'; // eslint-disable-line no-undef
       })),
     ]);
 
     // the remote connection gets closed when it is done.
     await driver.wait(() => driver.executeScript(() => {
-      return remoteConnection === null; // eslint-disable-line no-undef
+      return pc2 === null; // eslint-disable-line no-undef
     }));
 
     const transferred = await driver.findElement(webdriver.By.id('receiveProgress')).getAttribute('value');

src/content/datachannel/filetransfer/index.html

@@ -76,7 +76,7 @@ <h1><a href="https://webrtc.github.io/samples/" title="WebRTC samples homepage">
     <section>
       <p>View the console to see logging.</p>
 
-      <p>The <code>RTCPeerConnection</code> objects <code>localConnection</code> and <code>remoteConnection</code> are in global scope, so you can inspect them in the console as well.</p>
+      <p>The <code>RTCPeerConnection</code> objects <code>pc1</code> and <code>pc2</code> are in global scope, so you can inspect them in the console as well.</p>
 
       <p>For more information about RTCDataChannel, see <a href="http://www.html5rocks.com/en/tutorials/webrtc/basics/#toc-rtcdatachannel" title="RTCDataChannel section of HTML5 Rocks article about WebRTC">Getting Started With WebRTC</a>.</p>
     </section>