mirror of
https://github.com/GoogleChrome/chrome-extensions-samples.git
synced 2026-03-27 13:29:34 +07:00
Remove generic bluetooth-demo.
This demo relies on a custom Android application to act as an echo server, so it makes a very poor demo. The zephyr-hxm and ioio demos should provide a good starting point for interested people.
This commit is contained in:
Bryan Yeung
@@ -1,6 +0,0 @@
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chrome.experimental.app.onLaunched.addListener(function() {
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chrome.appWindow.create('index.html', {
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width: 680,
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height: 480
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});
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});
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@@ -1,16 +0,0 @@
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<html>
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<body>
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<input type="button" id="start_discovery" value="Start discovery">
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<input type="button" id="stop_discovery" value="Stop discovery">
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<br />
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<input type="button" id="services" value="Query services">
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<br />
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<input type="button" id="connect" value="Connect to echo service">
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<br />
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Send to echo service: <input type="text" id="t"></input>
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<input type="button" id="send" value="Send">
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<br />
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<pre id="log"></pre>
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</body>
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<script src="main.js"></script>
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</html>
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@@ -1,211 +0,0 @@
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function log(msg) {
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var l = document.getElementById('log');
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if (typeof(msg) == 'object') {
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l.innerText += JSON.stringify(msg) + '\n';
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} else {
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l.innerText += msg + '\n';
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}
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console.log(msg);
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}
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function logResult(tag) {
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return function(result) {
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log(tag + ':' + result);
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};
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}
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function checkError(tag) {
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return function() {
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if (chrome.extension.lastError) {
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log(tag + ' failed: ' + chrome.extension.lastError);
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} else {
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log(tag + ' succeeded.');
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}
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};
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}
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log('Starting bluetooth demo...');
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/**
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* Listen to available events and log any changes.
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*/
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chrome.experimental.bluetooth.onAvailabilityChanged.addListener(
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function(result) {
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log('onAvailabilityChanged(' + result + ')');
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});
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chrome.experimental.bluetooth.onPowerChanged.addListener(
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function(result) {
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log('onPowerChanged(' + result + ')');
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});
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/**
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* Query the system for basic information.
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*/
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chrome.experimental.bluetooth.getAddress(
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logResult('getAddress'));
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chrome.experimental.bluetooth.isAvailable(
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logResult('isAvailable'));
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chrome.experimental.bluetooth.isPowered(
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logResult('isPowered'));
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/**
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* Device discovery example.
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*/
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function deviceCallback(device) {
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if (chrome.extension.lastError) {
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log('Device discovered callback called with error: ' +
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chrome.extension.lastError);
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} else {
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log('Discovered device: ' + device.address + ' (' + device.name + ')');
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}
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}
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document.getElementById('start_discovery').addEventListener('click',
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function() {
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chrome.experimental.bluetooth.startDiscovery(
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{'deviceCallback': deviceCallback}, checkError('startDiscovery'));
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});
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document.getElementById('stop_discovery').addEventListener('click',
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function() {
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chrome.experimental.bluetooth.stopDiscovery(checkError('stopDiscovery'));
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});
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/**
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* Connect, read & write example
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*
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* NOTE: In order for this example to work a phone with the BluetoothEcho
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* application (ask bryeung) must be paired with the device. This also
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* requires enabling "Unsupported bluetooth devices" in about:flags.
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*/
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var kUUID = '6e197870-8fae-11e1-b0c4-0800200c9a66'; // BluetoothEcho
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var readIntervalId;
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var readInterval = function (socket) {
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return function() {
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chrome.experimental.bluetooth.read({socketId:socket.id}, function(data) {
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if (chrome.extension.lastError) {
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log('Read error:');
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log(chrome.extension.lastError);
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window.clearInterval(readIntervalId);
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} else {
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if (data) {
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var chars = new Uint8Array(data);
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var s = 'read: ';
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for (var i = 0; i < data.byteLength; i++) {
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s += String.fromCharCode(chars[i]);
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}
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log(s);
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}
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}
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});
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}
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}
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function startEchoService(socket) {
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log('Starting reads');
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readIntervalId = window.setInterval(readInterval(socket), 1000);
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}
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function makeWriteFunction(socket) {
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return function() {
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var textField = document.getElementById('t');
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if (textField.value.length == 0) {
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return;
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}
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var buffer = new ArrayBuffer(textField.value.length);
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var view = new Uint8Array(buffer);
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for (var i = 0; i < textField.value.length; i++) {
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view[i] = textField.value[i].charCodeAt();
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}
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chrome.experimental.bluetooth.write({socketId:socket.id, data:buffer},
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function(bytes) {
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if (chrome.extension.lastError) {
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log('Write error: ' + chrome.extension.lastError.message);
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} else {
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log('wrote ' + bytes + ' bytes');
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}
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});
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textField.value = '';
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};
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}
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var connectCallback = function(result) {
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if (result) {
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log('Connected! Socket ID is: ' + result.id + ' on service ' +
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result.serviceUuid);
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startEchoService(result);
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document.getElementById('t').addEventListener('change',
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makeWriteFunction(result));
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document.getElementById('send').addEventListener('click',
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makeWriteFunction(result));
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} else {
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log('Failed to connect.');
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}
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};
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var connectToDevice = function(result) {
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if (chrome.extension.lastError) {
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log('Error searching for a device to connect to.');
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return;
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}
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if (result.length == 0) {
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log('No devices found to connect to.');
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return;
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}
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for (var i in result) {
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var device = result[i];
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log('Connecting to device: ' + device.name + ' @ ' + device.address);
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chrome.experimental.bluetooth.connect(
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{deviceAddress: device.address, serviceUuid: kUUID}, connectCallback);
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}
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};
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document.getElementById('connect').addEventListener('click',
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function() {
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chrome.experimental.bluetooth.getDevices({uuid: kUUID}, connectToDevice);
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});
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/**
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* getServices example
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*
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* NOTE: same caveats apply as for the connect example above.
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*/
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function makeProcessServices(device) {
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return function(result) {
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if (chrome.extension.lastError) {
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log('Service discovery failed for ' + device.address);
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return;
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}
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log('Device ' + device.address + ' has services:');
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for (var i in result) {
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log(' ' + result[i].name + ' : ' + result[i].uuid);
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}
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};
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}
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var getServicesFromDevice = function(result) {
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if (chrome.extension.lastError) {
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log('Error searching for a device to query.');
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return;
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}
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if (result.length == 0) {
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log('No device found to query for services.');
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return;
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}
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for (var i in result) {
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var device = result[i];
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log('Discovered device: ' + device.address + ' (' + device.name + ')');
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chrome.experimental.bluetooth.getServices({deviceAddress:device.address},
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makeProcessServices(device));
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}
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};
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document.getElementById('services').addEventListener('click',
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function() {
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chrome.experimental.bluetooth.getDevices({uuid: kUUID},
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getServicesFromDevice);
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});
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@@ -1,19 +0,0 @@
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{
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"name": "Bluetooth Demo",
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"description": "Demo of the new Bluetooth APIs",
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"version": "1.0",
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"manifest_version": 2,
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"icons": {
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"16": "icon16.png",
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"48": "icon48.png",
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"128": "icon128.png"
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},
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"app": {
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"background": {
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"scripts": ["background.js"]
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}
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},
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"permissions": [
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"experimental"
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]
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}
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