[F xhml] use a class to avoid duplicated ids when editing several entities at once
/*
* This file contains extensions for standard javascript types
*
*/
ONE_DAY = 86400000; // (in milliseconds)
// ========== DATE EXTENSIONS ========== ///
Date.prototype.equals = function(other) {
/* compare with other date ignoring time differences */
if (this.getYear() == other.getYear() &&
this.getMonth() == other.getMonth() &&
this.getDate() == other.getDate()) {
return true;
}
return false;
};
Date.prototype.add = function(days) {
var res = new Date();
res.setTime(this.getTime() + (days * ONE_DAY));
return res;
};
Date.prototype.sub = function(days) {
return this.add(-days);
};
Date.prototype.iadd = function(days) {
// in-place add
this.setTime(this.getTime() + (days * ONE_DAY));
// avoid strange rounding problems !!
this.setHours(12);
};
Date.prototype.isub = function(days) {
// in-place sub
this.setTime(this.getTime() - (days * ONE_DAY));
};
/*
* returns the first day of the next month
*/
Date.prototype.nextMonth = function() {
if (this.getMonth() == 11) {
var d =new Date(this.getFullYear()+1, 0, 1);
return d;
} else {
var d2 = new Date(this.getFullYear(), this.getMonth()+1, 1);
return d2;
}
};
/*
* returns the day of week, 0 being monday, 6 being sunday
*/
Date.prototype.getRealDay = function() {
// getDay() returns 0 for Sunday ==> 6 for Saturday
return (this.getDay()+6) % 7;
};
Date.prototype.strftime = function(fmt) {
if (this.toLocaleFormat !== undefined) { // browser dependent
return this.toLocaleFormat(fmt);
}
// XXX implement at least a decent fallback implementation
return this.getFullYear() + '/' + (this.getMonth()+1) + '/' + this.getDate();
};
var _DATE_FORMAT_REGXES = {
'Y': new RegExp('^-?[0-9]+'),
'd': new RegExp('^[0-9]{1,2}'),
'm': new RegExp('^[0-9]{1,2}'),
'H': new RegExp('^[0-9]{1,2}'),
'M': new RegExp('^[0-9]{1,2}')
}
/*
* _parseData does the actual parsing job needed by `strptime`
*/
function _parseDate(datestring, format) {
var skip0 = new RegExp('^0*[0-9]+');
var parsed = {};
for (var i1=0,i2=0;i1<format.length;i1++,i2++) {
var c1 = format[i1];
var c2 = datestring[i2];
if (c1 == '%') {
c1 = format[++i1];
var data = _DATE_FORMAT_REGXES[c1].exec(datestring.substring(i2));
if (!data.length) {
return null;
}
data = data[0];
i2 += data.length-1;
var value = parseInt(data, 10);
if (isNaN(value)) {
return null;
}
parsed[c1] = value;
continue;
}
if (c1 != c2) {
return null;
}
}
return parsed;
}
/*
* basic implementation of strptime. The only recognized formats
* defined in _DATE_FORMAT_REGEXES (i.e. %Y, %d, %m, %H, %M)
*/
function strptime(datestring, format) {
var parsed = _parseDate(datestring, format);
if (!parsed) {
return null;
}
// create initial date (!!! year=0 means 1900 !!!)
var date = new Date(0, 0, 1, 0, 0);
date.setFullYear(0); // reset to year 0
if (parsed.Y) {
date.setFullYear(parsed.Y);
}
if (parsed.m) {
if (parsed.m < 1 || parsed.m > 12) {
return null;
}
// !!! month indexes start at 0 in javascript !!!
date.setMonth(parsed.m - 1);
}
if (parsed.d) {
if (parsed.m < 1 || parsed.m > 31) {
return null;
}
date.setDate(parsed.d);
}
if (parsed.H) {
if (parsed.H < 0 || parsed.H > 23) {
return null;
}
date.setHours(parsed.H);
}
if (parsed.M) {
if (parsed.M < 0 || parsed.M > 59) {
return null;
}
date.setMinutes(parsed.M);
}
return date;
}
// ========== END OF DATE EXTENSIONS ========== ///
// ========== ARRAY EXTENSIONS ========== ///
Array.prototype.contains = function(element) {
return findValue(this, element) != -1;
};
// ========== END OF ARRAY EXTENSIONS ========== ///
// ========== STRING EXTENSIONS ========== //
/* python-like startsWith method for js strings
* >>>
*/
String.prototype.startsWith = function(prefix) {
return this.indexOf(prefix) == 0;
};
/* python-like endsWith method for js strings */
String.prototype.endsWith = function(suffix) {
var startPos = this.length - suffix.length;
if (startPos < 0) { return false; }
return this.lastIndexOf(suffix, startPos) == startPos;
};
/* python-like strip method for js strings */
String.prototype.strip = function() {
return this.replace(/^\s*(.*?)\s*$/, "$1");
};
/* py-equiv: string in list */
String.prototype.in_ = function(values) {
return findValue(values, this) != -1;
};
/* py-equiv: str.join(list) */
String.prototype.join = function(args) {
return args.join(this);
};
/* python-like list builtin
* transforms an iterable in a js sequence
* >>> gen = ifilter(function(x) {return x%2==0}, range(10))
* >>> s = list(gen)
* [0,2,4,6,8]
*/
function list(iterable) {
var iterator = iter(iterable);
var result = [];
while (true) {
/* iterates until StopIteration occurs */
try {
result.push(iterator.next());
} catch (exc) {
if (exc != StopIteration) { throw exc; }
return result;
}
}
}
/* py-equiv: getattr(obj, attrname, default=None) */
function getattr(obj, attrname, defaultValue) {
// when not passed, defaultValue === undefined
return obj[attrname] || defaultValue;
}
/* py-equiv: operator.attrgetter */
function attrgetter(attrname) {
return function(obj) { return getattr(obj, attrname); };
}
/* returns a subslice of `lst` using `start`/`stop`/`step`
* start, stop might be negative
*
* >>> sliceList(['a', 'b', 'c', 'd', 'e', 'f'], 2)
* ['c', 'd', 'e', 'f']
* >>> sliceList(['a', 'b', 'c', 'd', 'e', 'f'], 2, -2)
* ['c', 'd']
* >>> sliceList(['a', 'b', 'c', 'd', 'e', 'f'], -3)
* ['d', 'e', 'f']
*/
function sliceList(lst, start, stop, step) {
var start = start || 0;
var stop = stop || lst.length;
var step = step || 1;
if (stop < 0) {
stop = max(lst.length+stop, 0);
}
if (start < 0) {
start = min(lst.length+start, lst.length);
}
var result = [];
for (var i=start; i < stop; i+=step) {
result.push(lst[i]);
}
return result;
}
/* returns a partial func that calls a mehod on its argument
* py-equiv: return lambda obj: getattr(obj, methname)(*args)
*/
function methodcaller(methname) {
var args = sliceList(arguments, 1);
return function(obj) {
return obj[methname].apply(obj, args);
};
}
/* use MochiKit's listMin / listMax */
function min() { return listMin(arguments); }
function max() { return listMax(arguments); }
/*
* >>> d = dict(["x", "y", "z"], [0, 1, 2])
* >>> d['y']
* 1
* >>> d.y
* 1
*/
function dict(keys, values) {
if (keys.length != values.length) {
throw "got different number of keys and values !";
}
var newobj = {};
for(var i=0; i<keys.length; i++) {
newobj[keys[i]] = values[i];
}
return newobj;
}
function concat() {
return ''.join(list(arguments));
}
/**** class factories ****/
// transforms a function into an unbound method
function makeUnboundMethod(meth) {
function unboundMeth(self) {
var newargs = sliceList(arguments, 1);
return meth.apply(self, newargs);
}
unboundMeth.__name__ = meth.__name__;
return unboundMeth;
}
function attachMethodToClass(cls, methname, meth) {
meth.__name__ = methname;
// XXX : this is probably bad for memory usage
cls.__dict__[methname] = meth;
cls[methname] = makeUnboundMethod(meth); // for the class itself
cls.prototype[methname] = meth; // for the instance
}
// simple internal function that tells if the attribute should
// be copied from baseclasses or not
function _isAttrSkipped(attrname) {
var skipped = ['__class__', '__dict__', '__bases__', 'prototype'];
for (var i=0; i < skipped.length; i++) {
if (skipped[i] == attrname) {
return true;
}
}
return false;
}
// internal function used to build the class constructor
function makeConstructor(userctor) {
return function() {
// this is a proxy to user's __init__
if (userctor) {
userctor.apply(this, arguments);
}
};
}
/* this is a js class factory. objects returned by this function behave
* more or less like a python class. The `class` function prototype is
* inspired by the python `type` builtin
* Important notes :
* -> methods are _STATICALLY_ attached when the class it created
* -> multiple inheritance was never tested, which means it doesn't work ;-)
*/
function defclass(name, bases, classdict) {
var baseclasses = bases || [];
// this is the static inheritance approach (<=> differs from python)
var basemeths = {};
var reverseLookup = [];
for(var i=baseclasses.length-1; i >= 0; i--) {
reverseLookup.push(baseclasses[i]);
}
reverseLookup.push({'__dict__' : classdict});
for(var i=0; i < reverseLookup.length; i++) {
var cls = reverseLookup[i];
for (prop in cls.__dict__) {
// XXX hack to avoid __init__, __bases__...
if ( !_isAttrSkipped(prop) ) {
basemeths[prop] = cls.__dict__[prop];
}
}
}
var userctor = basemeths['__init__'];
var constructor = makeConstructor(userctor);
// python-like interface
constructor.__name__ = name;
constructor.__bases__ = baseclasses;
constructor.__dict__ = {};
constructor.prototype.__class__ = constructor;
// make bound / unbound methods
for (methname in basemeths) {
attachMethodToClass(constructor, methname, basemeths[methname]);
}
return constructor;
}
// Not really python-like
CubicWeb = {};
// XXX backward compatibility
Erudi = CubicWeb;
CubicWeb.loaded = [];
CubicWeb.require = function(module) {
if (!CubicWeb.loaded.contains(module)) {
// a CubicWeb.load_javascript(module) function would require a dependency on ajax.js
log(module, ' is required but not loaded');
}
};
CubicWeb.provide = function(module) {
if (!CubicWeb.loaded.contains(module)) {
CubicWeb.loaded.push(module);
}
};
CubicWeb.provide('python.js');