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Optimize accelerometer to use new PluginManager.

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This commit is contained in:
Bryce Curtis 2010-09-10 13:44:45 -05:00
parent 863807a7a5
commit 0a7762743e
2 changed files with 42 additions and 124 deletions
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133
framework/assets/js/accelerometer.js
View File

@ -1,35 +1,3 @@
com.phonegap.AccelListenerProxy = function() {
this.className = "com.phonegap.AccelListener";
this.status = -1; // not set yet
};
com.phonegap.AccelListenerProxy.prototype.getStatus = function() {
if (this.status == -1) { // if not set, then request status
this.status = PhoneGap.exec(this.className, "getStatus", []);
}
return this.status;
};
com.phonegap.AccelListenerProxy.prototype.onStatus = function(status) {
console.log("AccelListener.onStatus("+status+")");
this.status = status;
};
com.phonegap.AccelListenerProxy.prototype.getAcceleration = function() {
var r = PhoneGap.exec(this.className, "getAcceleration", []);
var a = new Acceleration(r.x,r.y,r.z);
return a;
};
com.phonegap.AccelListenerProxy.prototype.start = function() {
return PhoneGap.exec(this.className, "start", []);
};
com.phonegap.AccelListenerProxy.prototype.stop = function() {
return PhoneGap.exec(this.className, "stop", []);
};
com.phonegap.AccelListenerProxy.prototype.setTimeout = function(timeout) {
return PhoneGap.exec(this.className, "setTimeout", [timeout]);
};
com.phonegap.AccelListenerProxy.prototype.getTimeout = function() {
return PhoneGap.exec(this.className, "getTimeout", []);
};
com.phonegap.AccelListener = new com.phonegap.AccelListenerProxy();
function Acceleration(x, y, z) {
this.x = x;
@ -55,20 +23,17 @@ function Accelerometer() {
this.timers = {};
};
Accelerometer.STOPPED = 0;
Accelerometer.STARTING = 1;
Accelerometer.RUNNING = 2;
Accelerometer.ERROR_FAILED_TO_START = 3;
Accelerometer.ERROR_MSG = ["Not running", "Starting", "", "Failed to start"];
/**
* Asynchronously aquires the current acceleration.
*
* @param {Function} successCallback The function to call when the acceleration data is available
* @param {Function} errorCallback The function to call when there is an error getting the acceleration data.
* @param {AccelerationOptions} options The options for getting the accelerometer data such as timeout.
* @param {Function} errorCallback The function to call when there is an error getting the acceleration data. (OPTIONAL)
* @param {AccelerationOptions} options The options for getting the accelerometer data such as timeout. (OPTIONAL)
*/
Accelerometer.prototype.getCurrentAcceleration = function(successCallback, errorCallback, options) {
console.log("Accelerometer.getCurrentAcceleration()");
// successCallback required
if (typeof successCallback != "function") {
@ -82,60 +47,16 @@ Accelerometer.prototype.getCurrentAcceleration = function(successCallback, error
return;
}
// Get current acceleration status
var status = com.phonegap.AccelListener.getStatus();
// If running, then call successCallback
if (status == Accelerometer.RUNNING) {
try {
var accel = com.phonegap.AccelListener.getAcceleration();
successCallback(accel);
} catch (e) {
console.log("Accelerometer Error in successCallback: " + e);
}
}
// If not running, then start it
else if (status >= 0) {
com.phonegap.AccelListener.start();
// Wait until started
var timer = setInterval(function() {
var status = com.phonegap.AccelListener.getStatus();
// If accelerometer is running
if (status == Accelerometer.RUNNING) {
clearInterval(timer);
try {
var accel = com.phonegap.AccelListener.getAcceleration();
successCallback(accel);
} catch (e) {
console.log("Accelerometer Error in successCallback: " + e);
}
}
// If accelerometer error
else if (status == Accelerometer.ERROR_FAILED_TO_START) {
clearInterval(timer);
console.log("Accelerometer Error: "+ Accelerometer.ERROR_MSG[status]);
try {
if (errorCallback) {
errorCallback(status);
}
} catch (e) {
console.log("Accelerometer Error in errorCallback: " + e);
}
}
}, 10);
}
// Get acceleration
PhoneGap.execAsync(successCallback, errorCallback, "Accelerometer", "getAcceleration", []);
};
/**
* Asynchronously aquires the acceleration repeatedly at a given interval.
*
* @param {Function} successCallback The function to call each time the acceleration data is available
* @param {Function} errorCallback The function to call when there is an error getting the acceleration data.
* @param {AccelerationOptions} options The options for getting the accelerometer data such as timeout.
* @param {Function} errorCallback The function to call when there is an error getting the acceleration data. (OPTIONAL)
* @param {AccelerationOptions} options The options for getting the accelerometer data such as timeout. (OPTIONAL)
* @return String The watch id that must be passed to #clearWatch to stop watching.
*/
Accelerometer.prototype.watchAcceleration = function(successCallback, errorCallback, options) {
@ -156,40 +77,18 @@ Accelerometer.prototype.watchAcceleration = function(successCallback, errorCallb
}
// Make sure accelerometer timeout > frequency + 10 sec
var timeout = com.phonegap.AccelListener.getTimeout();
if (timeout < (frequency + 10000)) {
com.phonegap.AccelListener.setTimeout(frequency + 10000); // set to frequency + 10 sec
}
var id = PhoneGap.createUUID();
com.phonegap.AccelListener.start();
PhoneGap.execAsync(
function(timeout) {
if (timeout < (frequency + 10000)) {
PhoneGap.execAsync(null, null, "Accelerometer", "setTimeout", [frequency + 10000]);
}
},
function(e) { }, "Accelerometer", "getTimeout", []);
// Start watch timer
var id = PhoneGap.createUUID();
navigator.accelerometer.timers[id] = setInterval(function() {
var status = com.phonegap.AccelListener.getStatus();
// If accelerometer is running
if (status == Accelerometer.RUNNING) {
try {
var accel = com.phonegap.AccelListener.getAcceleration();
successCallback(accel);
} catch (e) {
console.log("Accelerometer Error in successCallback: " + e);
}
}
// If accelerometer had error
else if (status == Accelerometer.ERROR_FAILED_TO_START) {
console.log("Accelerometer Error: "+ Accelerometer.ERROR_MSG[status]);
try {
navigator.accelerometer.clearWatch(id);
if (errorCallback) {
errorCallback(status);
}
} catch (e) {
console.log("Accelerometer Error in errorCallback: " + e);
}
}
PhoneGap.execAsync(successCallback, errorCallback, "Accelerometer", "getAcceleration", []);
}, (frequency ? frequency : 1));
return id;

33
framework/src/com/phonegap/AccelListener.java
View File

@ -98,9 +98,20 @@ public class AccelListener implements SensorEventListener, Plugin{
return new PluginResult(status, 0);
}
else if (action.equals("getAcceleration")) {
// Start if not already running
if (this.status == AccelListener.STOPPED) {
this.start();
// If not running, then this is an async call, so don't worry about waiting
if (this.status != AccelListener.RUNNING) {
int r = this.start();
if (r == AccelListener.ERROR_FAILED_TO_START) {
return new PluginResult(PluginResult.Status.IO_EXCEPTION, AccelListener.ERROR_FAILED_TO_START);
}
// Wait until running
while (this.status == STARTING) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
JSONObject r = new JSONObject();
r.put("x", this.x);
@ -140,7 +151,18 @@ public class AccelListener implements SensorEventListener, Plugin{
* @return T=returns value
*/
public boolean hasReturnValue(String action) {
// TODO
if (action.equals("getStatus")) {
return true;
}
else if (action.equals("getAcceleration")) {
// Can only return value if RUNNING
if (this.status == RUNNING) {
return true;
}
}
else if (action.equals("getTimeout")) {
return true;
}
return false;
}
@ -293,9 +315,6 @@ public class AccelListener implements SensorEventListener, Plugin{
* @param status
*/
private void setStatus(int status) {
if (this.status != status) {
ctx.sendJavascript("com.phonegap.AccelListener.onStatus("+status+")");
}
this.status = status;
}