laurent@371: # Copyright 2006 James Tauber and contributors
laurent@371: #
laurent@371: # Licensed under the Apache License, Version 2.0 (the "License");
laurent@371: # you may not use this file except in compliance with the License.
laurent@371: # You may obtain a copy of the License at
laurent@371: #
laurent@371: #     http://www.apache.org/licenses/LICENSE-2.0
laurent@371: #
laurent@371: # Unless required by applicable law or agreed to in writing, software
laurent@371: # distributed under the License is distributed on an "AS IS" BASIS,
laurent@371: # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
laurent@371: # See the License for the specific language governing permissions and
laurent@371: # limitations under the License.
laurent@371: 
andrej@2444: # pylint: disable=too-many-function-args,undefined-variable,no-absolute-import,assign-to-new-keyword,nonzero-method
laurent@371: 
laurent@371: # iteration from Bob Ippolito's Iteration in JavaScript
laurent@371: 
laurent@371: from __pyjamas__ import JS
laurent@371: 
laurent@371: # must declare import _before_ importing sys
laurent@371: 
andrej@1736: 
laurent@371: def import_module(path, parent_module, module_name, dynamic=1, async=False):
laurent@371: 
laurent@371:     JS("""
laurent@371:         var cache_file;
laurent@371: 
laurent@371:         if (module_name == "sys" || module_name == 'pyjslib')
laurent@371:         {
laurent@371:             /*module_load_request[module_name] = 1;*/
laurent@371:             return;
laurent@371:         }
laurent@371: 
laurent@371:         if (path == null)
laurent@371:         {
laurent@371:             path = './';
laurent@371:         }
laurent@371: 
laurent@371:         var override_name = sys.platform + "." + module_name;
andrej@1730:         if (((sys.overrides != null) &&
laurent@371:              (sys.overrides.has_key(override_name))))
laurent@371:         {
laurent@371:             cache_file =  sys.overrides.__getitem__(override_name) ;
laurent@371:         }
laurent@371:         else
laurent@371:         {
laurent@371:             cache_file =  module_name ;
laurent@371:         }
laurent@371: 
laurent@371:         cache_file = (path + cache_file + '.cache.js' ) ;
laurent@371: 
laurent@371:         //alert("cache " + cache_file + " " + module_name + " " + parent_module);
laurent@371: 
laurent@371:         /* already loaded? */
laurent@371:         if (module_load_request[module_name])
laurent@371:         {
laurent@371:             if (module_load_request[module_name] >= 3 && parent_module != null)
laurent@371:             {
laurent@371:                 //onload_fn = parent_module + '.' + module_name + ' = ' + module_name + ';';
laurent@371:                 //pyjs_eval(onload_fn); /* set up the parent-module namespace */
laurent@371:             }
laurent@371:             return;
laurent@371:         }
laurent@371:         if (typeof (module_load_request[module_name]) == 'undefined')
laurent@371:         {
laurent@371:             module_load_request[module_name] = 1;
laurent@371:         }
laurent@371: 
andrej@1730:         /* following a load, this first executes the script
laurent@371:          * "preparation" function MODULENAME_loaded_fn()
laurent@371:          * and then sets up the loaded module in the namespace
laurent@371:          * of the parent.
laurent@371:          */
laurent@371: 
laurent@371:         onload_fn = ''; // module_name + "_loaded_fn();"
laurent@371: 
laurent@371:         if (parent_module != null)
laurent@371:         {
laurent@371:             //onload_fn += parent_module + '.' + module_name + ' = ' + module_name + ';';
laurent@371:             /*pmod = parent_module + '.' + module_name;
laurent@371:             onload_fn += 'alert("' + pmod + '"+' + pmod+');';*/
laurent@371:         }
laurent@371: 
laurent@371: 
laurent@371:         if (dynamic)
laurent@371:         {
laurent@371:             /* this one tacks the script onto the end of the DOM
laurent@371:              */
laurent@371: 
laurent@371:             pyjs_load_script(cache_file, onload_fn, async);
laurent@371: 
laurent@371:             /* this one actually RUNS the script (eval) into the page.
laurent@371:                my feeling is that this would be better for non-async
laurent@371:                but i can't get it to work entirely yet.
laurent@371:              */
laurent@371:             /*pyjs_ajax_eval(cache_file, onload_fn, async);*/
laurent@371:         }
laurent@371:         else
laurent@371:         {
laurent@371:             if (module_name != "pyjslib" &&
laurent@371:                 module_name != "sys")
laurent@371:                 pyjs_eval(onload_fn);
laurent@371:         }
laurent@371: 
laurent@371:     """)
laurent@371: 
andrej@1749: 
laurent@371: JS("""
laurent@371: function import_wait(proceed_fn, parent_mod, dynamic) {
laurent@371: 
laurent@371:     var data = '';
laurent@371:     var element = $doc.createElement("div");
laurent@371:     $doc.body.appendChild(element);
laurent@371:     function write_dom(txt) {
laurent@371:         element.innerHTML = txt + '<br />';
laurent@371:     }
laurent@371: 
laurent@371:     var timeoutperiod = 1;
laurent@371:     if (dynamic)
laurent@371:         var timeoutperiod = 1;
laurent@371: 
laurent@371:     var wait = function() {
laurent@371: 
laurent@371:         var status = '';
laurent@371:         for (l in module_load_request)
laurent@371:         {
laurent@371:             var m = module_load_request[l];
laurent@371:             if (l == "sys" || l == 'pyjslib')
laurent@371:                 continue;
laurent@371:             status += l + m + " ";
laurent@371:         }
laurent@371: 
laurent@371:         //write_dom( " import wait " + wait_count + " " + status + " parent_mod " + parent_mod);
laurent@371:         wait_count += 1;
laurent@371: 
laurent@371:         if (status == '')
laurent@371:         {
laurent@371:             setTimeout(wait, timeoutperiod);
laurent@371:             return;
laurent@371:         }
laurent@371: 
laurent@371:         for (l in module_load_request)
laurent@371:         {
laurent@371:             var m = module_load_request[l];
laurent@371:             if (l == "sys" || l == 'pyjslib')
laurent@371:             {
laurent@371:                 module_load_request[l] = 4;
laurent@371:                 continue;
laurent@371:             }
laurent@371:             if ((parent_mod != null) && (l == parent_mod))
laurent@371:             {
laurent@371:                 if (m == 1)
laurent@371:                 {
laurent@371:                     setTimeout(wait, timeoutperiod);
laurent@371:                     return;
laurent@371:                 }
laurent@371:                 if (m == 2)
laurent@371:                 {
laurent@371:                     /* cheat and move app on to next stage */
laurent@371:                     module_load_request[l] = 3;
laurent@371:                 }
laurent@371:             }
laurent@371:             if (m == 1 || m == 2)
laurent@371:             {
laurent@371:                 setTimeout(wait, timeoutperiod);
laurent@371:                 return;
laurent@371:             }
laurent@371:             if (m == 3)
laurent@371:             {
laurent@371:                 //alert("waited for module " + l + ": loaded");
laurent@371:                 module_load_request[l] = 4;
laurent@371:                 mod_fn = modules[l];
laurent@371:             }
laurent@371:         }
laurent@371:         //alert("module wait done");
laurent@371: 
laurent@371:         if (proceed_fn.importDone)
laurent@371:             proceed_fn.importDone(proceed_fn);
laurent@371:         else
laurent@371:             proceed_fn();
laurent@371:     }
laurent@371: 
laurent@371:     wait();
laurent@371: }
laurent@371: """)
laurent@371: 
andrej@1736: 
andrej@1873: # pylint: disable=old-style-class
laurent@371: class Object:
andrej@1873:     def __init__(self):
andrej@1873:         pass
laurent@371: 
andrej@1749: 
laurent@371: object = Object
laurent@371: 
andrej@1736: 
laurent@371: class Modload:
laurent@371: 
laurent@371:     def __init__(self, path, app_modlist, app_imported_fn, dynamic,
laurent@371:                  parent_mod):
laurent@371:         self.app_modlist = app_modlist
laurent@371:         self.app_imported_fn = app_imported_fn
laurent@371:         self.path = path
andrej@1752:         self.idx = 0
laurent@371:         self.dynamic = dynamic
laurent@371:         self.parent_mod = parent_mod
laurent@371: 
laurent@371:     def next(self):
andrej@1730: 
laurent@371:         for i in range(len(self.app_modlist[self.idx])):
laurent@371:             app = self.app_modlist[self.idx][i]
andrej@1752:             import_module(self.path, self.parent_mod, app, self.dynamic, True)
laurent@371:         self.idx += 1
laurent@371: 
laurent@371:         if self.idx >= len(self.app_modlist):
laurent@371:             import_wait(self.app_imported_fn, self.parent_mod, self.dynamic)
laurent@371:         else:
laurent@371:             import_wait(getattr(self, "next"), self.parent_mod, self.dynamic)
laurent@371: 
andrej@1736: 
laurent@371: def get_module(module_name):
andrej@1847:     _ev = "__mod = %s;" % module_name
andrej@1847:     JS("pyjs_eval(_ev);")
laurent@371:     return __mod
laurent@371: 
andrej@1736: 
laurent@371: def preload_app_modules(path, app_modnames, app_imported_fn, dynamic,
laurent@371:                         parent_mod=None):
laurent@371: 
laurent@371:     loader = Modload(path, app_modnames, app_imported_fn, dynamic, parent_mod)
laurent@371:     loader.next()
laurent@371: 
andrej@1749: 
andrej@1783: # as comment on line 20 says
andrej@1783: # import sys should be below
andrej@1859: import sys  # noqa # pylint: disable=wrong-import-order,unused-import,wrong-import-position
laurent@371: 
andrej@1736: 
laurent@371: class BaseException:
laurent@371: 
laurent@371:     name = "BaseException"
laurent@371: 
laurent@371:     def __init__(self, *args):
laurent@371:         self.args = args
laurent@371: 
laurent@371:     def __str__(self):
laurent@371:         if len(self.args) is 0:
laurent@371:             return ''
laurent@371:         elif len(self.args) is 1:
laurent@371:             return repr(self.args[0])
laurent@371:         return repr(self.args)
laurent@371: 
laurent@371:     def toString(self):
laurent@371:         return str(self)
laurent@371: 
andrej@1736: 
laurent@371: class Exception(BaseException):
laurent@371:     name = "Exception"
laurent@371: 
andrej@1736: 
laurent@371: class TypeError(BaseException):
laurent@371:     name = "TypeError"
laurent@371: 
andrej@1736: 
laurent@371: class StandardError(Exception):
laurent@371:     name = "StandardError"
laurent@371: 
andrej@1736: 
laurent@371: class LookupError(StandardError):
laurent@371:     name = "LookupError"
laurent@371: 
laurent@371:     def toString(self):
laurent@371:         return self.name + ": " + self.args[0]
laurent@371: 
andrej@1736: 
laurent@371: class KeyError(LookupError):
laurent@371:     name = "KeyError"
laurent@371: 
andrej@1736: 
laurent@371: class AttributeError(StandardError):
laurent@371:     name = "AttributeError"
laurent@371: 
laurent@371:     def toString(self):
laurent@371:         return "AttributeError: %s of %s" % (self.args[1], self.args[0])
laurent@371: 
andrej@1749: 
andrej@2439: JS(r"""
laurent@371: pyjslib.StopIteration = function () { };
laurent@371: pyjslib.StopIteration.prototype = new Error();
laurent@371: pyjslib.StopIteration.name = 'StopIteration';
laurent@371: pyjslib.StopIteration.message = 'StopIteration';
laurent@371: 
laurent@371: pyjslib.String_find = function(sub, start, end) {
laurent@371:     var pos=this.indexOf(sub, start);
laurent@371:     if (pyjslib.isUndefined(end)) return pos;
laurent@371: 
laurent@371:     if (pos + sub.length>end) return -1;
laurent@371:     return pos;
laurent@371: }
laurent@371: 
laurent@371: pyjslib.String_join = function(data) {
laurent@371:     var text="";
laurent@371: 
laurent@371:     if (pyjslib.isArray(data)) {
laurent@371:         return data.join(this);
laurent@371:     }
laurent@371:     else if (pyjslib.isIteratable(data)) {
laurent@371:         var iter=data.__iter__();
laurent@371:         try {
laurent@371:             text+=iter.next();
laurent@371:             while (true) {
laurent@371:                 var item=iter.next();
laurent@371:                 text+=this + item;
laurent@371:             }
laurent@371:         }
laurent@371:         catch (e) {
laurent@371:             if (e != pyjslib.StopIteration) throw e;
laurent@371:         }
laurent@371:     }
laurent@371: 
laurent@371:     return text;
laurent@371: }
laurent@371: 
laurent@371: pyjslib.String_isdigit = function() {
laurent@371:     return (this.match(/^\d+$/g) != null);
laurent@371: }
laurent@371: 
laurent@371: pyjslib.String_replace = function(old, replace, count) {
laurent@371:     var do_max=false;
laurent@371:     var start=0;
laurent@371:     var new_str="";
laurent@371:     var pos=0;
laurent@371: 
laurent@371:     if (!pyjslib.isString(old)) return this.__replace(old, replace);
laurent@371:     if (!pyjslib.isUndefined(count)) do_max=true;
laurent@371: 
laurent@371:     while (start<this.length) {
laurent@371:         if (do_max && !count--) break;
laurent@371: 
laurent@371:         pos=this.indexOf(old, start);
laurent@371:         if (pos<0) break;
laurent@371: 
laurent@371:         new_str+=this.substring(start, pos) + replace;
laurent@371:         start=pos+old.length;
laurent@371:     }
laurent@371:     if (start<this.length) new_str+=this.substring(start);
laurent@371: 
laurent@371:     return new_str;
laurent@371: }
laurent@371: 
laurent@371: pyjslib.String_split = function(sep, maxsplit) {
laurent@371:     var items=new pyjslib.List();
laurent@371:     var do_max=false;
laurent@371:     var subject=this;
laurent@371:     var start=0;
laurent@371:     var pos=0;
laurent@371: 
laurent@371:     if (pyjslib.isUndefined(sep) || pyjslib.isNull(sep)) {
laurent@371:         sep=" ";
laurent@371:         subject=subject.strip();
laurent@371:         subject=subject.replace(/\s+/g, sep);
laurent@371:     }
laurent@371:     else if (!pyjslib.isUndefined(maxsplit)) do_max=true;
laurent@371: 
laurent@371:     if (subject.length == 0) {
laurent@371:         return items;
laurent@371:     }
laurent@371: 
laurent@371:     while (start<subject.length) {
laurent@371:         if (do_max && !maxsplit--) break;
laurent@371: 
laurent@371:         pos=subject.indexOf(sep, start);
laurent@371:         if (pos<0) break;
laurent@371: 
laurent@371:         items.append(subject.substring(start, pos));
laurent@371:         start=pos+sep.length;
laurent@371:     }
laurent@371:     if (start<=subject.length) items.append(subject.substring(start));
laurent@371: 
laurent@371:     return items;
laurent@371: }
laurent@371: 
laurent@371: pyjslib.String___iter__ = function() {
laurent@371:     var i = 0;
laurent@371:     var s = this;
laurent@371:     return {
laurent@371:         'next': function() {
laurent@371:             if (i >= s.length) {
laurent@371:                 throw pyjslib.StopIteration;
laurent@371:             }
laurent@371:             return s.substring(i++, i, 1);
laurent@371:         },
laurent@371:         '__iter__': function() {
laurent@371:             return this;
laurent@371:         }
laurent@371:     };
laurent@371: }
laurent@371: 
laurent@371: pyjslib.String_strip = function(chars) {
laurent@371:     return this.lstrip(chars).rstrip(chars);
laurent@371: }
laurent@371: 
laurent@371: pyjslib.String_lstrip = function(chars) {
laurent@371:     if (pyjslib.isUndefined(chars)) return this.replace(/^\s+/, "");
laurent@371: 
laurent@371:     return this.replace(new RegExp("^[" + chars + "]+"), "");
laurent@371: }
laurent@371: 
laurent@371: pyjslib.String_rstrip = function(chars) {
laurent@371:     if (pyjslib.isUndefined(chars)) return this.replace(/\s+$/, "");
laurent@371: 
laurent@371:     return this.replace(new RegExp("[" + chars + "]+$"), "");
laurent@371: }
laurent@371: 
laurent@371: pyjslib.String_startswith = function(prefix, start) {
laurent@371:     if (pyjslib.isUndefined(start)) start = 0;
laurent@371: 
laurent@371:     if (this.substring(start, prefix.length) == prefix) return true;
laurent@371:     return false;
laurent@371: }
laurent@371: 
laurent@371: pyjslib.abs = Math.abs;
laurent@371: 
laurent@371: """)
laurent@371: 
andrej@1736: 
laurent@371: class Class:
laurent@371:     def __init__(self, name):
laurent@371:         self.name = name
laurent@371: 
laurent@371:     def __str___(self):
laurent@371:         return self.name
laurent@371: 
andrej@1736: 
andrej@1740: def eq(a, b):
laurent@371:     JS("""
laurent@371:     if (pyjslib.hasattr(a, "__cmp__")) {
laurent@371:         return a.__cmp__(b) == 0;
laurent@371:     } else if (pyjslib.hasattr(b, "__cmp__")) {
laurent@371:         return b.__cmp__(a) == 0;
laurent@371:     }
laurent@371:     return a == b;
laurent@371:     """)
laurent@371: 
andrej@1736: 
andrej@1740: def cmp(a, b):
laurent@371:     if hasattr(a, "__cmp__"):
laurent@371:         return a.__cmp__(b)
laurent@371:     elif hasattr(b, "__cmp__"):
laurent@371:         return -b.__cmp__(a)
laurent@371:     if a > b:
laurent@371:         return 1
laurent@371:     elif b > a:
laurent@371:         return -1
laurent@371:     else:
laurent@371:         return 0
laurent@371: 
andrej@1736: 
laurent@371: def bool(v):
laurent@371:     # this needs to stay in native code without any dependencies here,
laurent@371:     # because this is used by if and while, we need to prevent
laurent@371:     # recursion
laurent@371:     JS("""
laurent@371:     if (!v) return false;
laurent@371:     switch(typeof v){
laurent@371:     case 'boolean':
laurent@371:         return v;
laurent@371:     case 'object':
laurent@371:         if (v.__nonzero__){
laurent@371:             return v.__nonzero__();
laurent@371:         }else if (v.__len__){
laurent@371:             return v.__len__()>0;
laurent@371:         }
laurent@371:         return true;
laurent@371:     }
laurent@371:     return Boolean(v);
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: class List:
laurent@371:     def __init__(self, data=None):
laurent@371:         JS("""
laurent@371:         this.l = [];
laurent@371:         this.extend(data);
laurent@371:         """)
laurent@371: 
laurent@371:     def append(self, item):
laurent@371:         JS("""    this.l[this.l.length] = item;""")
laurent@371: 
laurent@371:     def extend(self, data):
laurent@371:         JS("""
laurent@371:         if (pyjslib.isArray(data)) {
laurent@371:             n = this.l.length;
laurent@371:             for (var i=0; i < data.length; i++) {
laurent@371:                 this.l[n+i]=data[i];
laurent@371:                 }
laurent@371:             }
laurent@371:         else if (pyjslib.isIteratable(data)) {
laurent@371:             var iter=data.__iter__();
laurent@371:             var i=this.l.length;
laurent@371:             try {
laurent@371:                 while (true) {
laurent@371:                     var item=iter.next();
laurent@371:                     this.l[i++]=item;
laurent@371:                     }
laurent@371:                 }
laurent@371:             catch (e) {
laurent@371:                 if (e != pyjslib.StopIteration) throw e;
laurent@371:                 }
laurent@371:             }
laurent@371:         """)
laurent@371: 
laurent@371:     def remove(self, value):
laurent@371:         JS("""
laurent@371:         var index=this.index(value);
laurent@371:         if (index<0) return false;
laurent@371:         this.l.splice(index, 1);
laurent@371:         return true;
laurent@371:         """)
laurent@371: 
laurent@371:     def index(self, value, start=0):
laurent@371:         JS("""
laurent@371:         var length=this.l.length;
laurent@371:         for (var i=start; i<length; i++) {
laurent@371:             if (this.l[i]==value) {
laurent@371:                 return i;
laurent@371:                 }
laurent@371:             }
laurent@371:         return -1;
laurent@371:         """)
laurent@371: 
laurent@371:     def insert(self, index, value):
laurent@371:         JS("""    var a = this.l; this.l=a.slice(0, index).concat(value, a.slice(index));""")
laurent@371: 
andrej@1744:     def pop(self, index=-1):
laurent@371:         JS("""
laurent@371:         if (index<0) index = this.l.length + index;
laurent@371:         var a = this.l[index];
laurent@371:         this.l.splice(index, 1);
laurent@371:         return a;
laurent@371:         """)
laurent@371: 
laurent@371:     def __cmp__(self, l):
laurent@371:         if not isinstance(l, List):
laurent@371:             return -1
laurent@371:         ll = len(self) - len(l)
laurent@371:         if ll != 0:
laurent@371:             return ll
laurent@371:         for x in range(len(l)):
laurent@371:             ll = cmp(self.__getitem__(x), l[x])
laurent@371:             if ll != 0:
laurent@371:                 return ll
laurent@371:         return 0
laurent@371: 
laurent@371:     def slice(self, lower, upper):
laurent@371:         JS("""
laurent@371:         if (upper==null) return pyjslib.List(this.l.slice(lower));
laurent@371:         return pyjslib.List(this.l.slice(lower, upper));
laurent@371:         """)
laurent@371: 
laurent@371:     def __getitem__(self, index):
laurent@371:         JS("""
laurent@371:         if (index<0) index = this.l.length + index;
laurent@371:         return this.l[index];
laurent@371:         """)
laurent@371: 
laurent@371:     def __setitem__(self, index, value):
laurent@371:         JS("""    this.l[index]=value;""")
laurent@371: 
laurent@371:     def __delitem__(self, index):
laurent@371:         JS("""    this.l.splice(index, 1);""")
laurent@371: 
laurent@371:     def __len__(self):
laurent@371:         JS("""    return this.l.length;""")
laurent@371: 
laurent@371:     def __contains__(self, value):
laurent@371:         return self.index(value) >= 0
laurent@371: 
laurent@371:     def __iter__(self):
laurent@371:         JS("""
laurent@371:         var i = 0;
laurent@371:         var l = this.l;
laurent@371:         return {
laurent@371:             'next': function() {
laurent@371:                 if (i >= l.length) {
laurent@371:                     throw pyjslib.StopIteration;
laurent@371:                 }
laurent@371:                 return l[i++];
laurent@371:             },
laurent@371:             '__iter__': function() {
laurent@371:                 return this;
laurent@371:             }
laurent@371:         };
laurent@371:         """)
laurent@371: 
laurent@371:     def reverse(self):
laurent@371:         JS("""    this.l.reverse();""")
laurent@371: 
laurent@371:     def sort(self, compareFunc=None, keyFunc=None, reverse=False):
laurent@371:         if not compareFunc:
laurent@371:             compareFunc = cmp
laurent@371:         if keyFunc and reverse:
andrej@1740:             def thisSort1(a, b):
laurent@371:                 return -compareFunc(keyFunc(a), keyFunc(b))
laurent@371:             self.l.sort(thisSort1)
laurent@371:         elif keyFunc:
andrej@1740:             def thisSort2(a, b):
laurent@371:                 return compareFunc(keyFunc(a), keyFunc(b))
laurent@371:             self.l.sort(thisSort2)
laurent@371:         elif reverse:
andrej@1740:             def thisSort3(a, b):
laurent@371:                 return -compareFunc(a, b)
laurent@371:             self.l.sort(thisSort3)
laurent@371:         else:
laurent@371:             self.l.sort(compareFunc)
laurent@371: 
laurent@371:     def getArray(self):
laurent@371:         """
laurent@371:         Access the javascript Array that is used internally by this list
laurent@371:         """
laurent@371:         return self.l
laurent@371: 
laurent@371:     def __str__(self):
laurent@371:         return repr(self)
laurent@371: 
andrej@1749: 
laurent@371: list = List
laurent@371: 
andrej@1736: 
laurent@371: class Tuple:
laurent@371:     def __init__(self, data=None):
laurent@371:         JS("""
laurent@371:         this.l = [];
laurent@371:         this.extend(data);
laurent@371:         """)
laurent@371: 
laurent@371:     def append(self, item):
laurent@371:         JS("""    this.l[this.l.length] = item;""")
laurent@371: 
laurent@371:     def extend(self, data):
laurent@371:         JS("""
laurent@371:         if (pyjslib.isArray(data)) {
laurent@371:             n = this.l.length;
laurent@371:             for (var i=0; i < data.length; i++) {
laurent@371:                 this.l[n+i]=data[i];
laurent@371:                 }
laurent@371:             }
laurent@371:         else if (pyjslib.isIteratable(data)) {
laurent@371:             var iter=data.__iter__();
laurent@371:             var i=this.l.length;
laurent@371:             try {
laurent@371:                 while (true) {
laurent@371:                     var item=iter.next();
laurent@371:                     this.l[i++]=item;
laurent@371:                     }
laurent@371:                 }
laurent@371:             catch (e) {
laurent@371:                 if (e != pyjslib.StopIteration) throw e;
laurent@371:                 }
laurent@371:             }
laurent@371:         """)
laurent@371: 
laurent@371:     def remove(self, value):
laurent@371:         JS("""
laurent@371:         var index=this.index(value);
laurent@371:         if (index<0) return false;
laurent@371:         this.l.splice(index, 1);
laurent@371:         return true;
laurent@371:         """)
laurent@371: 
laurent@371:     def index(self, value, start=0):
laurent@371:         JS("""
laurent@371:         var length=this.l.length;
laurent@371:         for (var i=start; i<length; i++) {
laurent@371:             if (this.l[i]==value) {
laurent@371:                 return i;
laurent@371:                 }
laurent@371:             }
laurent@371:         return -1;
laurent@371:         """)
laurent@371: 
laurent@371:     def insert(self, index, value):
laurent@371:         JS("""    var a = this.l; this.l=a.slice(0, index).concat(value, a.slice(index));""")
laurent@371: 
andrej@1744:     def pop(self, index=-1):
laurent@371:         JS("""
laurent@371:         if (index<0) index = this.l.length + index;
laurent@371:         var a = this.l[index];
laurent@371:         this.l.splice(index, 1);
laurent@371:         return a;
laurent@371:         """)
laurent@371: 
laurent@371:     def __cmp__(self, l):
laurent@371:         if not isinstance(l, Tuple):
laurent@371:             return -1
laurent@371:         ll = len(self) - len(l)
laurent@371:         if ll != 0:
laurent@371:             return ll
laurent@371:         for x in range(len(l)):
laurent@371:             ll = cmp(self.__getitem__(x), l[x])
laurent@371:             if ll != 0:
laurent@371:                 return ll
laurent@371:         return 0
laurent@371: 
laurent@371:     def slice(self, lower, upper):
laurent@371:         JS("""
laurent@371:         if (upper==null) return pyjslib.Tuple(this.l.slice(lower));
laurent@371:         return pyjslib.Tuple(this.l.slice(lower, upper));
laurent@371:         """)
laurent@371: 
laurent@371:     def __getitem__(self, index):
laurent@371:         JS("""
laurent@371:         if (index<0) index = this.l.length + index;
laurent@371:         return this.l[index];
laurent@371:         """)
laurent@371: 
laurent@371:     def __setitem__(self, index, value):
laurent@371:         JS("""    this.l[index]=value;""")
laurent@371: 
laurent@371:     def __delitem__(self, index):
laurent@371:         JS("""    this.l.splice(index, 1);""")
laurent@371: 
laurent@371:     def __len__(self):
laurent@371:         JS("""    return this.l.length;""")
laurent@371: 
laurent@371:     def __contains__(self, value):
laurent@371:         return self.index(value) >= 0
laurent@371: 
laurent@371:     def __iter__(self):
laurent@371:         JS("""
laurent@371:         var i = 0;
laurent@371:         var l = this.l;
laurent@371:         return {
laurent@371:             'next': function() {
laurent@371:                 if (i >= l.length) {
laurent@371:                     throw pyjslib.StopIteration;
laurent@371:                 }
laurent@371:                 return l[i++];
laurent@371:             },
laurent@371:             '__iter__': function() {
laurent@371:                 return this;
laurent@371:             }
laurent@371:         };
laurent@371:         """)
laurent@371: 
laurent@371:     def reverse(self):
laurent@371:         JS("""    this.l.reverse();""")
laurent@371: 
laurent@371:     def sort(self, compareFunc=None, keyFunc=None, reverse=False):
laurent@371:         if not compareFunc:
laurent@371:             compareFunc = cmp
laurent@371:         if keyFunc and reverse:
andrej@1740:             def thisSort1(a, b):
laurent@371:                 return -compareFunc(keyFunc(a), keyFunc(b))
laurent@371:             self.l.sort(thisSort1)
laurent@371:         elif keyFunc:
andrej@1740:             def thisSort2(a, b):
laurent@371:                 return compareFunc(keyFunc(a), keyFunc(b))
laurent@371:             self.l.sort(thisSort2)
laurent@371:         elif reverse:
andrej@1740:             def thisSort3(a, b):
laurent@371:                 return -compareFunc(a, b)
laurent@371:             self.l.sort(thisSort3)
laurent@371:         else:
laurent@371:             self.l.sort(compareFunc)
laurent@371: 
laurent@371:     def getArray(self):
laurent@371:         """
laurent@371:         Access the javascript Array that is used internally by this list
laurent@371:         """
laurent@371:         return self.l
laurent@371: 
laurent@371:     def __str__(self):
laurent@371:         return repr(self)
laurent@371: 
andrej@1749: 
laurent@371: tuple = Tuple
laurent@371: 
laurent@371: 
laurent@371: class Dict:
laurent@371:     def __init__(self, data=None):
laurent@371:         JS("""
laurent@371:         this.d = {};
laurent@371: 
laurent@371:         if (pyjslib.isArray(data)) {
laurent@371:             for (var i in data) {
laurent@371:                 var item=data[i];
laurent@371:                 this.__setitem__(item[0], item[1]);
laurent@371:                 //var sKey=pyjslib.hash(item[0]);
laurent@371:                 //this.d[sKey]=item[1];
laurent@371:                 }
laurent@371:             }
laurent@371:         else if (pyjslib.isIteratable(data)) {
laurent@371:             var iter=data.__iter__();
laurent@371:             try {
laurent@371:                 while (true) {
laurent@371:                     var item=iter.next();
laurent@371:                     this.__setitem__(item.__getitem__(0), item.__getitem__(1));
laurent@371:                     }
laurent@371:                 }
laurent@371:             catch (e) {
laurent@371:                 if (e != pyjslib.StopIteration) throw e;
laurent@371:                 }
laurent@371:             }
laurent@371:         else if (pyjslib.isObject(data)) {
laurent@371:             for (var key in data) {
laurent@371:                 this.__setitem__(key, data[key]);
laurent@371:                 }
laurent@371:             }
laurent@371:         """)
laurent@371: 
laurent@371:     def __setitem__(self, key, value):
laurent@371:         JS("""
laurent@371:         var sKey = pyjslib.hash(key);
laurent@371:         this.d[sKey]=[key, value];
laurent@371:         """)
laurent@371: 
laurent@371:     def __getitem__(self, key):
laurent@371:         JS("""
laurent@371:         var sKey = pyjslib.hash(key);
laurent@371:         var value=this.d[sKey];
laurent@371:         if (pyjslib.isUndefined(value)){
laurent@371:             throw pyjslib.KeyError(key);
laurent@371:         }
laurent@371:         return value[1];
laurent@371:         """)
laurent@371: 
laurent@371:     def __nonzero__(self):
laurent@371:         JS("""
laurent@371:         for (var i in this.d){
laurent@371:             return true;
laurent@371:         }
laurent@371:         return false;
laurent@371:         """)
laurent@371: 
laurent@371:     def __len__(self):
laurent@371:         JS("""
laurent@371:         var size=0;
laurent@371:         for (var i in this.d) size++;
laurent@371:         return size;
laurent@371:         """)
laurent@371: 
laurent@371:     def has_key(self, key):
laurent@371:         return self.__contains__(key)
laurent@371: 
laurent@371:     def __delitem__(self, key):
laurent@371:         JS("""
laurent@371:         var sKey = pyjslib.hash(key);
laurent@371:         delete this.d[sKey];
laurent@371:         """)
laurent@371: 
laurent@371:     def __contains__(self, key):
laurent@371:         JS("""
laurent@371:         var sKey = pyjslib.hash(key);
laurent@371:         return (pyjslib.isUndefined(this.d[sKey])) ? false : true;
laurent@371:         """)
laurent@371: 
laurent@371:     def keys(self):
laurent@371:         JS("""
laurent@371:         var keys=new pyjslib.List();
laurent@371:         for (var key in this.d) {
laurent@371:             keys.append(this.d[key][0]);
laurent@371:         }
laurent@371:         return keys;
laurent@371:         """)
laurent@371: 
laurent@371:     def values(self):
laurent@371:         JS("""
laurent@371:         var values=new pyjslib.List();
laurent@371:         for (var key in this.d) values.append(this.d[key][1]);
laurent@371:         return values;
laurent@371:         """)
laurent@371: 
laurent@371:     def items(self):
laurent@371:         JS("""
laurent@371:         var items = new pyjslib.List();
laurent@371:         for (var key in this.d) {
laurent@371:           var kv = this.d[key];
laurent@371:           items.append(new pyjslib.List(kv))
laurent@371:           }
laurent@371:           return items;
laurent@371:         """)
laurent@371: 
laurent@371:     def __iter__(self):
laurent@371:         return self.keys().__iter__()
laurent@371: 
laurent@371:     def iterkeys(self):
laurent@371:         return self.__iter__()
laurent@371: 
laurent@371:     def itervalues(self):
andrej@1752:         return self.values().__iter__()
laurent@371: 
laurent@371:     def iteritems(self):
andrej@1752:         return self.items().__iter__()
laurent@371: 
laurent@371:     def setdefault(self, key, default_value):
andrej@1775:         if key not in self:
laurent@371:             self[key] = default_value
laurent@371: 
laurent@371:     def get(self, key, default_=None):
andrej@1775:         if key not in self:
laurent@371:             return default_
laurent@371:         return self[key]
laurent@371: 
laurent@371:     def update(self, d):
andrej@1740:         for k, v in d.iteritems():
laurent@371:             self[k] = v
laurent@371: 
laurent@371:     def getObject(self):
laurent@371:         """
laurent@371:         Return the javascript Object which this class uses to store
laurent@371:         dictionary keys and values
laurent@371:         """
laurent@371:         return self.d
laurent@371: 
laurent@371:     def copy(self):
laurent@371:         return Dict(self.items())
laurent@371: 
laurent@371:     def __str__(self):
laurent@371:         return repr(self)
laurent@371: 
andrej@1749: 
laurent@371: dict = Dict
laurent@371: 
laurent@371: # taken from mochikit: range( [start,] stop[, step] )
andrej@1736: 
andrej@1736: 
laurent@371: def range():
laurent@371:     JS("""
laurent@371:     var start = 0;
laurent@371:     var stop = 0;
laurent@371:     var step = 1;
laurent@371: 
laurent@371:     if (arguments.length == 2) {
laurent@371:         start = arguments[0];
laurent@371:         stop = arguments[1];
laurent@371:         }
laurent@371:     else if (arguments.length == 3) {
laurent@371:         start = arguments[0];
laurent@371:         stop = arguments[1];
laurent@371:         step = arguments[2];
laurent@371:         }
laurent@371:     else if (arguments.length>0) stop = arguments[0];
laurent@371: 
laurent@371:     return {
laurent@371:         'next': function() {
laurent@371:             if ((step > 0 && start >= stop) || (step < 0 && start <= stop)) throw pyjslib.StopIteration;
laurent@371:             var rval = start;
laurent@371:             start += step;
laurent@371:             return rval;
laurent@371:             },
laurent@371:         '__iter__': function() {
laurent@371:             return this;
laurent@371:             }
laurent@371:         }
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def slice(object, lower, upper):
laurent@371:     JS("""
laurent@371:     if (pyjslib.isString(object)) {
laurent@371:         if (lower < 0) {
laurent@371:            lower = object.length + lower;
laurent@371:         }
laurent@371:         if (upper < 0) {
laurent@371:            upper = object.length + upper;
laurent@371:         }
laurent@371:         if (pyjslib.isNull(upper)) upper=object.length;
laurent@371:         return object.substring(lower, upper);
laurent@371:     }
laurent@371:     if (pyjslib.isObject(object) && object.slice)
laurent@371:         return object.slice(lower, upper);
laurent@371: 
laurent@371:     return null;
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def str(text):
laurent@371:     JS("""
laurent@371:     if (pyjslib.hasattr(text,"__str__")) {
laurent@371:         return text.__str__();
laurent@371:     }
laurent@371:     return String(text);
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def ord(x):
andrej@1828:     if isString(x) and len(x) is 1:
laurent@371:         JS("""
laurent@371:             return x.charCodeAt(0);
laurent@371:         """)
laurent@371:     else:
laurent@371:         JS("""
laurent@371:             throw pyjslib.TypeError();
laurent@371:         """)
laurent@371:     return None
laurent@371: 
andrej@1736: 
laurent@371: def chr(x):
laurent@371:     JS("""
laurent@371:         return String.fromCharCode(x)
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def is_basetype(x):
laurent@371:     JS("""
laurent@371:        var t = typeof(x);
laurent@371:        return t == 'boolean' ||
laurent@371:        t == 'function' ||
laurent@371:        t == 'number' ||
laurent@371:        t == 'string' ||
laurent@371:        t == 'undefined'
laurent@371:        ;
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def get_pyjs_classtype(x):
laurent@371:     JS("""
laurent@371:        if (pyjslib.hasattr(x, "__class__"))
laurent@371:            if (pyjslib.hasattr(x.__class__, "__new__"))
laurent@371:                var src = x.__class__.__name__;
laurent@371:                return src;
laurent@371:        return null;
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def repr(x):
laurent@371:     """ Return the string representation of 'x'.
laurent@371:     """
laurent@371:     JS("""
laurent@371:        if (x === null)
laurent@371:            return "null";
laurent@371: 
laurent@371:        if (x === undefined)
laurent@371:            return "undefined";
laurent@371: 
laurent@371:        var t = typeof(x);
laurent@371: 
laurent@371:         //alert("repr typeof " + t + " : " + x);
laurent@371: 
laurent@371:        if (t == "boolean")
laurent@371:            return x.toString();
laurent@371: 
laurent@371:        if (t == "function")
laurent@371:            return "<function " + x.toString() + ">";
laurent@371: 
laurent@371:        if (t == "number")
laurent@371:            return x.toString();
laurent@371: 
laurent@371:        if (t == "string") {
laurent@371:            if (x.indexOf("'") == -1)
laurent@371:                return "'" + x + "'";
laurent@371:            if (x.indexOf('"') == -1)
laurent@371:                return '"' + x + '"';
laurent@371:            var s = x.replace(new RegExp('"', "g"), '\\\\"');
laurent@371:            return '"' + s + '"';
laurent@371:        };
laurent@371: 
laurent@371:        if (t == "undefined")
laurent@371:            return "undefined";
laurent@371: 
laurent@371:        // If we get here, x is an object.  See if it's a Pyjamas class.
laurent@371: 
laurent@371:        if (!pyjslib.hasattr(x, "__init__"))
laurent@371:            return "<" + x.toString() + ">";
laurent@371: 
laurent@371:        // Handle the common Pyjamas data types.
laurent@371: 
laurent@371:        var constructor = "UNKNOWN";
laurent@371: 
laurent@371:        constructor = pyjslib.get_pyjs_classtype(x);
laurent@371: 
laurent@371:         //alert("repr constructor: " + constructor);
laurent@371: 
laurent@371:        if (constructor == "Tuple") {
laurent@371:            var contents = x.getArray();
laurent@371:            var s = "(";
laurent@371:            for (var i=0; i < contents.length; i++) {
laurent@371:                s += pyjslib.repr(contents[i]);
laurent@371:                if (i < contents.length - 1)
laurent@371:                    s += ", ";
laurent@371:            };
laurent@371:            s += ")"
laurent@371:            return s;
laurent@371:        };
laurent@371: 
laurent@371:        if (constructor == "List") {
laurent@371:            var contents = x.getArray();
laurent@371:            var s = "[";
laurent@371:            for (var i=0; i < contents.length; i++) {
laurent@371:                s += pyjslib.repr(contents[i]);
laurent@371:                if (i < contents.length - 1)
laurent@371:                    s += ", ";
laurent@371:            };
laurent@371:            s += "]"
laurent@371:            return s;
laurent@371:        };
laurent@371: 
laurent@371:        if (constructor == "Dict") {
laurent@371:            var keys = new Array();
laurent@371:            for (var key in x.d)
laurent@371:                keys.push(key);
laurent@371: 
laurent@371:            var s = "{";
laurent@371:            for (var i=0; i<keys.length; i++) {
laurent@371:                var key = keys[i]
laurent@371:                s += pyjslib.repr(key) + ": " + pyjslib.repr(x.d[key]);
laurent@371:                if (i < keys.length-1)
laurent@371:                    s += ", "
laurent@371:            };
laurent@371:            s += "}";
laurent@371:            return s;
laurent@371:        };
laurent@371: 
laurent@371:        // If we get here, the class isn't one we know -> return the class name.
laurent@371:        // Note that we replace underscores with dots so that the name will
laurent@371:        // (hopefully!) look like the original Python name.
laurent@371: 
laurent@371:        //var s = constructor.replace(new RegExp('_', "g"), '.');
laurent@371:        return "<" + constructor + " object>";
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def float(text):
laurent@371:     JS("""
laurent@371:     return parseFloat(text);
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def int(text, radix=0):
laurent@371:     JS("""
laurent@371:     return parseInt(text, radix);
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def len(object):
laurent@371:     JS("""
laurent@371:     if (object==null) return 0;
laurent@371:     if (pyjslib.isObject(object) && object.__len__) return object.__len__();
laurent@371:     return object.length;
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def isinstance(object_, classinfo):
laurent@371:     if pyjslib.isUndefined(object_):
laurent@371:         return False
laurent@371:     if not pyjslib.isObject(object_):
andrej@1730: 
laurent@371:         return False
laurent@371:     if _isinstance(classinfo, Tuple):
laurent@371:         for ci in classinfo:
laurent@371:             if isinstance(object_, ci):
laurent@371:                 return True
laurent@371:         return False
laurent@371:     else:
laurent@371:         return _isinstance(object_, classinfo)
laurent@371: 
andrej@1736: 
laurent@371: def _isinstance(object_, classinfo):
laurent@371:     if not pyjslib.isObject(object_):
laurent@371:         return False
laurent@371:     JS("""
laurent@371:     if (object_.__class__){
laurent@371:         var res =  object_ instanceof classinfo.constructor;
laurent@371:         return res;
laurent@371:     }
laurent@371:     return false;
laurent@371:     """)
laurent@371: 
andrej@1736: 
andrej@1865: def getattr(obj, name, default_=None):
laurent@371:     JS("""
laurent@371:     if ((!pyjslib.isObject(obj))||(pyjslib.isUndefined(obj[name]))){
laurent@371:         if (pyjslib.isUndefined(default_)){
laurent@371:             throw pyjslib.AttributeError(obj, name);
laurent@371:         }else{
laurent@371:         return default_;
laurent@371:         }
laurent@371:     }
laurent@371:     if (!pyjslib.isFunction(obj[name])) return obj[name];
laurent@371:     var fnwrap = function() {
laurent@371:         var args = [];
laurent@371:         for (var i = 0; i < arguments.length; i++) {
laurent@371:           args.push(arguments[i]);
laurent@371:         }
laurent@371:         return obj[name].apply(obj,args);
laurent@371:         }
laurent@371:     fnwrap.__name__ = name;
laurent@371:     return fnwrap;
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def setattr(obj, name, value):
laurent@371:     JS("""
laurent@371:     if (!pyjslib.isObject(obj)) return null;
laurent@371: 
laurent@371:     obj[name] = value;
laurent@371: 
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def hasattr(obj, name):
laurent@371:     JS("""
laurent@371:     if (!pyjslib.isObject(obj)) return false;
laurent@371:     if (pyjslib.isUndefined(obj[name])) return false;
laurent@371: 
laurent@371:     return true;
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def dir(obj):
laurent@371:     JS("""
laurent@371:     var properties=new pyjslib.List();
laurent@371:     for (property in obj) properties.append(property);
laurent@371:     return properties;
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def filter(obj, method, sequence=None):
laurent@371:     # object context is LOST when a method is passed, hence object must be passed separately
laurent@371:     # to emulate python behaviour, should generate this code inline rather than as a function call
laurent@371:     items = []
laurent@371:     if sequence is None:
laurent@371:         sequence = method
laurent@371:         method = obj
laurent@371: 
laurent@371:         for item in sequence:
laurent@371:             if method(item):
laurent@371:                 items.append(item)
laurent@371:     else:
laurent@371:         for item in sequence:
laurent@371:             if method.call(obj, item):
laurent@371:                 items.append(item)
laurent@371: 
laurent@371:     return items
laurent@371: 
laurent@371: 
laurent@371: def map(obj, method, sequence=None):
laurent@371:     items = []
laurent@371: 
laurent@371:     if sequence is None:
laurent@371:         sequence = method
laurent@371:         method = obj
laurent@371: 
laurent@371:         for item in sequence:
laurent@371:             items.append(method(item))
laurent@371:     else:
laurent@371:         for item in sequence:
laurent@371:             items.append(method.call(obj, item))
laurent@371: 
laurent@371:     return items
laurent@371: 
laurent@371: 
laurent@371: def enumerate(sequence):
laurent@371:     enumeration = []
laurent@371:     nextIndex = 0
laurent@371:     for item in sequence:
laurent@371:         enumeration.append([nextIndex, item])
laurent@371:         nextIndex = nextIndex + 1
laurent@371:     return enumeration
laurent@371: 
laurent@371: 
laurent@371: def min(*sequence):
laurent@371:     minValue = None
laurent@371:     for item in sequence:
laurent@371:         if minValue is None:
laurent@371:             minValue = item
laurent@371:         elif item < minValue:
laurent@371:             minValue = item
laurent@371:     return minValue
laurent@371: 
laurent@371: 
laurent@371: def max(*sequence):
laurent@371:     maxValue = None
laurent@371:     for item in sequence:
laurent@371:         if maxValue is None:
laurent@371:             maxValue = item
laurent@371:         elif item > maxValue:
laurent@371:             maxValue = item
laurent@371:     return maxValue
laurent@371: 
laurent@371: 
laurent@371: next_hash_id = 0
laurent@371: 
andrej@1736: 
laurent@371: def hash(obj):
laurent@371:     JS("""
laurent@371:     if (obj == null) return null;
laurent@371: 
laurent@371:     if (obj.$H) return obj.$H;
laurent@371:     if (obj.__hash__) return obj.__hash__();
laurent@371:     if (obj.constructor == String || obj.constructor == Number || obj.constructor == Date) return obj;
laurent@371: 
laurent@371:     obj.$H = ++pyjslib.next_hash_id;
laurent@371:     return obj.$H;
laurent@371:     """)
laurent@371: 
laurent@371: 
laurent@371: # type functions from Douglas Crockford's Remedial Javascript: http://www.crockford.com/javascript/remedial.html
laurent@371: def isObject(a):
laurent@371:     JS("""
laurent@371:     return (a != null && (typeof a == 'object')) || pyjslib.isFunction(a);
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def isFunction(a):
laurent@371:     JS("""
laurent@371:     return typeof a == 'function';
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def isString(a):
laurent@371:     JS("""
laurent@371:     return typeof a == 'string';
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def isNull(a):
laurent@371:     JS("""
laurent@371:     return typeof a == 'object' && !a;
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def isArray(a):
laurent@371:     JS("""
laurent@371:     return pyjslib.isObject(a) && a.constructor == Array;
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def isUndefined(a):
laurent@371:     JS("""
laurent@371:     return typeof a == 'undefined';
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def isIteratable(a):
laurent@371:     JS("""
laurent@371:     return pyjslib.isString(a) || (pyjslib.isObject(a) && a.__iter__);
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def isNumber(a):
laurent@371:     JS("""
laurent@371:     return typeof a == 'number' && isFinite(a);
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def toJSObjects(x):
laurent@371:     """
laurent@371:        Convert the pyjs pythonic List and Dict objects into javascript Object and Array
laurent@371:        objects, recursively.
laurent@371:     """
laurent@371:     if isArray(x):
laurent@371:         JS("""
laurent@371:         var result = [];
laurent@371:         for(var k=0; k < x.length; k++) {
laurent@371:            var v = x[k];
laurent@371:            var tv = pyjslib.toJSObjects(v);
laurent@371:            result.push(tv);
laurent@371:         }
laurent@371:         return result;
laurent@371:         """)
laurent@371:     if isObject(x):
laurent@371:         if isinstance(x, Dict):
laurent@371:             JS("""
laurent@371:             var o = x.getObject();
laurent@371:             var result = {};
laurent@371:             for (var i in o) {
laurent@371:                result[o[i][0].toString()] = o[i][1];
laurent@371:             }
laurent@371:             return pyjslib.toJSObjects(result)
laurent@371:             """)
laurent@371:         elif isinstance(x, List):
laurent@371:             return toJSObjects(x.l)
laurent@371:         elif hasattr(x, '__class__'):
laurent@371:             # we do not have a special implementation for custom
laurent@371:             # classes, just pass it on
laurent@371:             return x
laurent@371:     if isObject(x):
laurent@371:         JS("""
laurent@371:         var result = {};
laurent@371:         for(var k in x) {
laurent@371:             var v = x[k];
laurent@371:             var tv = pyjslib.toJSObjects(v)
laurent@371:             result[k] = tv;
laurent@371:             }
laurent@371:             return result;
laurent@371:          """)
laurent@371:     return x
laurent@371: 
andrej@1736: 
laurent@371: def printFunc(objs):
laurent@371:     JS("""
laurent@371:     if ($wnd.console==undefined)  return;
laurent@371:     var s = "";
laurent@371:     for(var i=0; i < objs.length; i++) {
laurent@371:         if(s != "") s += " ";
laurent@371:         s += objs[i];
laurent@371:     }
laurent@371:     console.debug(s)
laurent@371:     """)
laurent@371: 
andrej@1736: 
laurent@371: def type(clsname, bases=None, methods=None):
laurent@371:     """ creates a class, derived from bases, with methods and variables
laurent@371:     """
laurent@371: 
laurent@371:     JS(" var mths = {}; ")
laurent@371:     if methods:
laurent@371:         for k in methods.keys():
andrej@1847:             _mth = methods[k]
andrej@1847:             JS(" mths[k] = _mth; ")
laurent@371: 
laurent@371:     JS(" var bss = null; ")
laurent@371:     if bases:
laurent@371:         JS("bss = bases.l;")
laurent@371:     JS(" return pyjs_type(clsname, bss, mths); ")