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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* Some common, generic functions
*/
try {
var Cc = Components.classes;
var Ci = Components.interfaces;
} catch (e) { ddump(e); } // if already declared, as in xpcshell-tests
try {
var Cu = Components.utils;
} catch (e) { ddump(e); }
Cu.import("resource:///modules/errUtils.js");
Cu.import("resource://gre/modules/Services.jsm");
function assert(test, errorMsg)
{
if (!test)
throw new NotReached(errorMsg ? errorMsg :
"Programming bug. Assertion failed, see log.");
}
function makeCallback(obj, func)
{
return function()
{
return func.apply(obj, arguments);
}
}
/**
* Runs the given function sometime later
*
* Currently implemented using setTimeout(), but
* can later be replaced with an nsITimer impl,
* when code wants to use it in a module.
*/
function runAsync(func)
{
setTimeout(func, 0);
}
/**
* @param uriStr {String}
* @result {nsIURI}
*/
function makeNSIURI(uriStr)
{
return Services.io.newURI(uriStr, null, null);
}
/**
* Reads UTF8 data from a URL.
*
* @param uri {nsIURI} what you want to read
* @return {Array of String} the contents of the file, one string per line
*/
function readURLasUTF8(uri)
{
assert(uri instanceof Ci.nsIURI, "uri must be an nsIURI");
try {
let chan = Services.io.newChannelFromURI2(uri,
null,
Services.scriptSecurityManager.getSystemPrincipal(),
null,
Ci.nsILoadInfo.SEC_NORMAL,
Ci.nsIContentPolicy.TYPE_OTHER);
let is = Cc["@mozilla.org/intl/converter-input-stream;1"]
.createInstance(Ci.nsIConverterInputStream);
is.init(chan.open(), "UTF-8", 1024,
Ci.nsIConverterInputStream.DEFAULT_REPLACEMENT_CHARACTER);
let content = "";
let strOut = new Object();
try {
while (is.readString(1024, strOut) != 0)
content += strOut.value;
// catch in outer try/catch
} finally {
is.close();
}
return content;
} catch (e) {
// TODO this has a numeric error message. We need to ship translations
// into human language.
throw e;
}
}
/**
* Takes a string (which is typically the content of a file,
* e.g. the result returned from readURLUTF8() ), and splits
* it into lines, and returns an array with one string per line
*
* Linebreaks are not contained in the result,,
* and all of \r\n, (Windows) \r (Mac) and \n (Unix) counts as linebreak.
*
* @param content {String} one long string with the whole file
* @return {Array of String} one string per line (no linebreaks)
*/
function splitLines(content)
{
content = content.replace("\r\n", "\n");
content = content.replace("\r", "\n");
return content.split("\n");
}
/**
* @param bundleURI {String} chrome URL to properties file
* @return nsIStringBundle
*/
function getStringBundle(bundleURI)
{
try {
return Services.strings.createBundle(bundleURI);
} catch (e) {
throw new Exception("Failed to get stringbundle URI <" + bundleURI +
">. Error: " + e);
}
}
function Exception(msg)
{
this._message = msg;
// get stack
try {
not.found.here += 1; // force a native exception ...
} catch (e) {
this.stack = e.stack; // ... to get the current stack
}
}
Exception.prototype =
{
get message()
{
return this._message;
},
toString : function()
{
return this._message;
}
}
function NotReached(msg)
{
Exception.call(this, msg); // call super constructor
logException(this);
}
// Make NotReached extend Exception.
NotReached.prototype = Object.create(Exception.prototype);
NotReached.prototype.constructor = NotReached;
/**
* A handle for an async function which you can cancel.
* The async function will return an object of this type (a subtype)
* and you can call cancel() when you feel like killing the function.
*/
function Abortable()
{
}
Abortable.prototype =
{
cancel : function()
{
}
}
/**
* Utility implementation, for allowing to abort a setTimeout.
* Use like: return new TimeoutAbortable(setTimeout(function(){ ... }, 0));
* @param setTimeoutID {Integer} Return value of setTimeout()
*/
function TimeoutAbortable(setTimeoutID)
{
Abortable.call(this, setTimeoutID); // call super constructor
this._id = setTimeoutID;
}
TimeoutAbortable.prototype = Object.create(Abortable.prototype);
TimeoutAbortable.prototype.constructor = TimeoutAbortable;
TimeoutAbortable.prototype.cancel = function() { clearTimeout(this._id); }
/**
* Utility implementation, for allowing to abort a setTimeout.
* Use like: return new TimeoutAbortable(setTimeout(function(){ ... }, 0));
* @param setIntervalID {Integer} Return value of setInterval()
*/
function IntervalAbortable(setIntervalID)
{
Abortable.call(this, setIntervalID); // call super constructor
this._id = setIntervalID;
}
IntervalAbortable.prototype = Object.create(Abortable.prototype);
IntervalAbortable.prototype.constructor = IntervalAbortable;
IntervalAbortable.prototype.cancel = function() { clearInterval(this._id); }
// Allows you to make several network calls, but return
// only one Abortable object.
function SuccessiveAbortable()
{
Abortable.call(this); // call super constructor
this._current = null;
}
SuccessiveAbortable.prototype = {
__proto__: Abortable.prototype,
get current() { return this._current; },
set current(abortable)
{
assert(abortable instanceof Abortable || abortable == null,
"need an Abortable object (or null)");
this._current = abortable;
},
cancel: function()
{
if (this._current)
this._current.cancel();
}
}
function deepCopy(org)
{
if (typeof(org) == "undefined")
return undefined;
if (org == null)
return null;
if (typeof(org) == "string")
return org;
if (typeof(org) == "number")
return org;
if (typeof(org) == "boolean")
return org == true;
if (typeof(org) == "function")
return org;
if (typeof(org) != "object")
throw "can't copy objects of type " + typeof(org) + " yet";
//TODO still instanceof org != instanceof copy
//var result = new org.constructor();
var result = new Object();
if (typeof(org.length) != "undefined")
var result = new Array();
for (var prop in org)
result[prop] = deepCopy(org[prop]);
return result;
}
if (typeof gEmailWizardLogger == "undefined") {
Cu.import("resource:///modules/gloda/log4moz.js");
var gEmailWizardLogger = Log4Moz.getConfiguredLogger("mail.wizard");
}
function ddump(text)
{
gEmailWizardLogger.info(text);
}
function debugObject(obj, name, maxDepth, curDepth)
{
if (curDepth == undefined)
curDepth = 0;
if (maxDepth != undefined && curDepth > maxDepth)
return "";
var result = "";
var i = 0;
for (let prop in obj)
{
i++;
try {
if (typeof(obj[prop]) == "object")
{
if (obj[prop] && obj[prop].length != undefined)
result += name + "." + prop + "=[probably array, length " +
obj[prop].length + "]\n";
else
result += name + "." + prop + "=[" + typeof(obj[prop]) + "]\n";
result += debugObject(obj[prop], name + "." + prop,
maxDepth, curDepth + 1);
}
else if (typeof(obj[prop]) == "function")
result += name + "." + prop + "=[function]\n";
else
result += name + "." + prop + "=" + obj[prop] + "\n";
} catch (e) {
result += name + "." + prop + "-> Exception(" + e + ")\n";
}
}
if (!i)
result += name + " is empty\n";
return result;
}
function alertPrompt(alertTitle, alertMsg)
{
Services.prompt.alert(window, alertTitle, alertMsg);
}
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