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| /*
* GPII Orca Settings Handler
*
* Copyright 2013-2015 Emergya
* Copyright 2015-2016 RtF-US
*
* Licensed under the New BSD license. You may not use this file except in
* compliance with this License.
*
* You may obtain a copy of the License at
* https://github.com/GPII/linux/blob/master/LICENSE.txt
*
* The research leading to these results has received funding from the European Union's
* Seventh Framework Programme (FP7/2007-2013)
* under grant agreement no. 289016.
*/
"use strict";
var fluid = require("universal");
var gpii = fluid.registerNamespace("gpii");
var fs = require("fs");
var spawn = require("child_process").spawn;
var path = require("path");
var HOME = process.env.HOME;
var XDG_DATA_HOME = process.env.XDG_DATA_HOME || path.resolve(HOME, ".local/share");
var orcaSettingsFile = path.resolve(XDG_DATA_HOME, "orca/user-settings.conf");
var ORCA_ARGS = ["--disable", "speech",
"--disable", "braille",
"--disable", "braille-monitor",
"--disable", "main-window",
"--disable", "splash-window"];
// When Orca is referencing a profile in a setting, it uses an array
// containing the profile's name and id.
// ie: startingProfile: ["Default", "default"]
//
// But profiles are stored in the 'profiles' section as an object,
// which main key equals to the profile's id. As we need to retrieve a
// specific profile under 'profiles' section, we need to get the second
// value (the id) from the array.
//
var PROFILE_ID = 1;
fluid.registerNamespace("gpii.orca");
fluid.defaults("gpii.orca.settingsHandler", {
gradeNames: ["fluid.component"],
invokers: {
get: {
funcName: "gpii.orca.settingsHandler.get",
args: ["{that}", "{arguments}.0"]
},
set: {
funcName: "gpii.orca.settingsHandler.set",
args: ["{that}", "{arguments}.0"]
},
getImpl: {
funcName: "gpii.orca.settingsHandler.getImpl",
args: ["{that}", "{arguments}.0"]
},
setImpl: {
funcName: "gpii.orca.settingsHandler.setImpl",
args: ["{that}", "{arguments}.0"]
},
getSettings: {
funcName: "gpii.orca.settingsHandler.getSettings",
args: ["{that}", "{arguments}.0", "{arguments}.1"]
},
setSettings: {
funcName: "gpii.orca.settingsHandler.setSettings",
args: ["{that}", "{arguments}.0"]
},
makeConfigurable: {
funcName: "gpii.orca.settingsHandler.makeConfigurable"
},
loadSettings: {
funcName: "gpii.orca.settingsHandler.loadSettings",
args: "{that}"
}
}
});
gpii.orca.settingsHandler.loadSettings = function (that) {
var togo = fluid.promise();
var performRead = function () {
try {
var userSettings = fs.readFileSync(orcaSettingsFile);
togo.resolve(JSON.parse(userSettings));
} catch (err) {
var rej = {
isError: true,
message: "Unable to read Orca settings file: " + err
};
togo.reject(rej);
}
};
try {
fs.statSync(orcaSettingsFile);
performRead();
} catch (err) {
var makeConfigurable = that.makeConfigurable();
makeConfigurable.then(function () {
performRead();
}, function (err) {
togo.reject(err);
});
}
return togo;
};
gpii.orca.settingsHandler.makeConfigurable = function () {
var togo = fluid.promise();
var orcaSpawn = spawn("orca", ORCA_ARGS);
var pass = 0;
var maxPass = 10;
var checkIfFileGetsCreated = function () {
pass++;
if (pass === maxPass) {
orcaSpawn.kill("SIGKILL");
var err = "Time limit exceeded [" + maxPass * 500 +
"ms] for creating Orca's configuration file";
var rej = {
isError: true,
message: err
};
togo.reject(rej);
} else {
try {
fs.statSync(orcaSettingsFile);
orcaSpawn.kill("SIGKILL");
togo.resolve();
} catch (err) {
gpii.invokeLater(checkIfFileGetsCreated, 500);
}
}
};
gpii.invokeLater(checkIfFileGetsCreated, 500);
return togo;
};
gpii.orca.settingsHandler.getSettings = function (that, payload) {
var loadSettings = that.loadSettings();
return fluid.promise.map(loadSettings, function (userSettings) {
var profile = userSettings.general.activeProfile[PROFILE_ID];
var results = fluid.transform(payload.settings, function (value, key) {
var currentValue = fluid.get(userSettings, ["profiles", profile, key]);
return currentValue;
});
return results;
});
};
gpii.orca.settingsHandler.setSettings = function (that, payload) {
var loadSettings = that.loadSettings();
return fluid.promise.map(loadSettings, function (userSettings) {
var profile = userSettings.general.activeProfile[PROFILE_ID];
var results = fluid.transform(payload.settings, function (value, key) {
var oldValue = fluid.get(userSettings, ["profiles", profile, key]);
fluid.set(userSettings, ["profiles", profile, key], value);
var newValue = fluid.get(userSettings, ["profiles", profile, key]);
return {
oldValue: oldValue,
newValue: newValue
};
});
fs.writeFileSync(orcaSettingsFile, JSON.stringify(userSettings, null, 4));
return results;
});
};
gpii.orca.settingsHandler.getImpl = function (that, payload) {
return that.getSettings(payload);
};
gpii.orca.settingsHandler.setImpl = function (that, payload) {
return that.setSettings(payload);
};
gpii.orca.settingsHandler.get = function (that, payload) {
return gpii.settingsHandlers.invokeSettingsHandler(that.getImpl, payload);
};
gpii.orca.settingsHandler.set = function (that, payload) {
return gpii.settingsHandlers.invokeSettingsHandler(that.setImpl, payload);
};
var orcaSettingsHandler = gpii.orca.settingsHandler();
gpii.orca.get = orcaSettingsHandler.get;
gpii.orca.set = orcaSettingsHandler.set;
|