Arduino Uno Quick Start Manual page 288

it to the bind method.
this keyword to the value you passed to
define a function now, but make sure that it has a certain context when you
actually call it.
When working with event handlers, this is often necessary. Users of the
alDevice class should be able to pass their own callback functions, but they
should be executed in the class context. You ll see how this works in a minute.
At the end of the constructor, we define three instance variables that are all
instances of the chrome.Event
define and dispatch events within Chrome apps. We use it to define the three
events that users of our
for readLine events using the
The next three methods of the
for connecting and disconnecting serial devices:
ChromeApps/SerialDevice/js/serial_device.js
SerialDevice.prototype.connect = function() {
Line 1
chrome.serial.connect(
-
this.path,
-
{ bitrate: this.baudRate },
-
this.onConnectComplete.bind(this))
5
};
-
-
SerialDevice.prototype.onConnectComplete = function(connectionInfo) {
-
if (!connectionInfo) {
-
console.log("Could not connect to serial
10
return;
-
}
-
this.connectionId = connectionInfo.connectionId;
-
chrome.serial.onReceive.addListener(this.boundOnReceive);
-
chrome.serial.onReceiveError.addListener(this.boundOnReceiveError);
15
this.onConnect.dispatch();
-
};
-
-
SerialDevice.prototype.disconnect = function() {
-
if (this.connectionId < 0) {
20
throw "No serial device
-
}
-
chrome.serial.disconnect(this.connectionId, function() {});
-
};
-
10. https://developer.chrome.com/extensions/events
Appendix 4. Controlling the Arduino with a Browser
bind creates a new function and sets the new function s
bind
10
class. This class provides some nice features to
SerialDevice class can listen for. Now users can register
onReadLine property.
SerialDevice class implement everything needed
connected.";
www.it-ebooks.info
originally. Using bind
device.");
276
, you can
Seri-
report erratum discuss