js/camera.js
author Ryan Willoughby <ryan.willoughby@nitobi.com>
Tue, 06 Jul 2010 11:31:19 -0700
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/**
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 * This class provides access to the device camera.
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 * @constructor
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 */
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function Camera() {
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	this.success_callback = null;
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	this.error_callback = null;
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}
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/**
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 * We use the Platform Services 2.0 API here. So we must include a portion of the
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 * PS 2.0 source code (camera API). 
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 * @param {Function} successCallback
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 * @param {Function} errorCallback
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 * @param {Object} options
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 */
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Camera.prototype.getPicture = function(successCallback, errorCallback, options){
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	try {
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		if (!this.serviceObj) {
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			this.serviceObj = com.nokia.device.load("", "com.nokia.device.camera", "");
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		}
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		if (!this.serviceObj) {
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			throw {
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				name: "CameraError",
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				message: "could not load camera service"
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			};
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		}
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		var obj = this;
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		obj.success_callback = successCallback;
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		obj.error_callback = errorCallback;
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		this.serviceObj.startCamera( function(transactionID, errorCode, outPut) { 
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			//outPut should be an array of image urls (local), or an error code
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			if (errorCode == 0) {
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				obj.success_callback(outPut);
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			}
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			else {
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				obj.error_callback({
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					name: "CameraError",
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					message: errorCode
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				});
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			}
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		});
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	} catch (ex) {
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		errorCallback.call(ex);
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	}
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};
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if (typeof navigator.camera == "undefined") navigator.camera = new Camera();