--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/svgui/pyjs/lib/pyjslib.py Sat May 12 11:21:10 2012 +0200
@@ -0,0 +1,1365 @@
+# Copyright 2006 James Tauber and contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# iteration from Bob Ippolito's Iteration in JavaScript
+
+from __pyjamas__ import JS
+
+# must declare import _before_ importing sys
+
+def import_module(path, parent_module, module_name, dynamic=1, async=False):
+ """
+ """
+
+ JS("""
+ var cache_file;
+
+ if (module_name == "sys" || module_name == 'pyjslib')
+ {
+ /*module_load_request[module_name] = 1;*/
+ return;
+ }
+
+ if (path == null)
+ {
+ path = './';
+ }
+
+ var override_name = sys.platform + "." + module_name;
+ if (((sys.overrides != null) &&
+ (sys.overrides.has_key(override_name))))
+ {
+ cache_file = sys.overrides.__getitem__(override_name) ;
+ }
+ else
+ {
+ cache_file = module_name ;
+ }
+
+ cache_file = (path + cache_file + '.cache.js' ) ;
+
+ //alert("cache " + cache_file + " " + module_name + " " + parent_module);
+
+ /* already loaded? */
+ if (module_load_request[module_name])
+ {
+ if (module_load_request[module_name] >= 3 && parent_module != null)
+ {
+ //onload_fn = parent_module + '.' + module_name + ' = ' + module_name + ';';
+ //pyjs_eval(onload_fn); /* set up the parent-module namespace */
+ }
+ return;
+ }
+ if (typeof (module_load_request[module_name]) == 'undefined')
+ {
+ module_load_request[module_name] = 1;
+ }
+
+ /* following a load, this first executes the script
+ * "preparation" function MODULENAME_loaded_fn()
+ * and then sets up the loaded module in the namespace
+ * of the parent.
+ */
+
+ onload_fn = ''; // module_name + "_loaded_fn();"
+
+ if (parent_module != null)
+ {
+ //onload_fn += parent_module + '.' + module_name + ' = ' + module_name + ';';
+ /*pmod = parent_module + '.' + module_name;
+ onload_fn += 'alert("' + pmod + '"+' + pmod+');';*/
+ }
+
+
+ if (dynamic)
+ {
+ /* this one tacks the script onto the end of the DOM
+ */
+
+ pyjs_load_script(cache_file, onload_fn, async);
+
+ /* this one actually RUNS the script (eval) into the page.
+ my feeling is that this would be better for non-async
+ but i can't get it to work entirely yet.
+ */
+ /*pyjs_ajax_eval(cache_file, onload_fn, async);*/
+ }
+ else
+ {
+ if (module_name != "pyjslib" &&
+ module_name != "sys")
+ pyjs_eval(onload_fn);
+ }
+
+ """)
+
+JS("""
+function import_wait(proceed_fn, parent_mod, dynamic) {
+
+ var data = '';
+ var element = $doc.createElement("div");
+ $doc.body.appendChild(element);
+ function write_dom(txt) {
+ element.innerHTML = txt + '<br />';
+ }
+
+ var timeoutperiod = 1;
+ if (dynamic)
+ var timeoutperiod = 1;
+
+ var wait = function() {
+
+ var status = '';
+ for (l in module_load_request)
+ {
+ var m = module_load_request[l];
+ if (l == "sys" || l == 'pyjslib')
+ continue;
+ status += l + m + " ";
+ }
+
+ //write_dom( " import wait " + wait_count + " " + status + " parent_mod " + parent_mod);
+ wait_count += 1;
+
+ if (status == '')
+ {
+ setTimeout(wait, timeoutperiod);
+ return;
+ }
+
+ for (l in module_load_request)
+ {
+ var m = module_load_request[l];
+ if (l == "sys" || l == 'pyjslib')
+ {
+ module_load_request[l] = 4;
+ continue;
+ }
+ if ((parent_mod != null) && (l == parent_mod))
+ {
+ if (m == 1)
+ {
+ setTimeout(wait, timeoutperiod);
+ return;
+ }
+ if (m == 2)
+ {
+ /* cheat and move app on to next stage */
+ module_load_request[l] = 3;
+ }
+ }
+ if (m == 1 || m == 2)
+ {
+ setTimeout(wait, timeoutperiod);
+ return;
+ }
+ if (m == 3)
+ {
+ //alert("waited for module " + l + ": loaded");
+ module_load_request[l] = 4;
+ mod_fn = modules[l];
+ }
+ }
+ //alert("module wait done");
+
+ if (proceed_fn.importDone)
+ proceed_fn.importDone(proceed_fn);
+ else
+ proceed_fn();
+ }
+
+ wait();
+}
+""")
+
+class Object:
+ pass
+
+object = Object
+
+class Modload:
+
+ def __init__(self, path, app_modlist, app_imported_fn, dynamic,
+ parent_mod):
+ self.app_modlist = app_modlist
+ self.app_imported_fn = app_imported_fn
+ self.path = path
+ self.idx = 0;
+ self.dynamic = dynamic
+ self.parent_mod = parent_mod
+
+ def next(self):
+
+ for i in range(len(self.app_modlist[self.idx])):
+ app = self.app_modlist[self.idx][i]
+ import_module(self.path, self.parent_mod, app, self.dynamic, True);
+ self.idx += 1
+
+ if self.idx >= len(self.app_modlist):
+ import_wait(self.app_imported_fn, self.parent_mod, self.dynamic)
+ else:
+ import_wait(getattr(self, "next"), self.parent_mod, self.dynamic)
+
+def get_module(module_name):
+ ev = "__mod = %s;" % module_name
+ JS("pyjs_eval(ev);")
+ return __mod
+
+def preload_app_modules(path, app_modnames, app_imported_fn, dynamic,
+ parent_mod=None):
+
+ loader = Modload(path, app_modnames, app_imported_fn, dynamic, parent_mod)
+ loader.next()
+
+import sys
+
+class BaseException:
+
+ name = "BaseException"
+
+ def __init__(self, *args):
+ self.args = args
+
+ def __str__(self):
+ if len(self.args) is 0:
+ return ''
+ elif len(self.args) is 1:
+ return repr(self.args[0])
+ return repr(self.args)
+
+ def toString(self):
+ return str(self)
+
+class Exception(BaseException):
+
+ name = "Exception"
+
+class TypeError(BaseException):
+ name = "TypeError"
+
+class StandardError(Exception):
+ name = "StandardError"
+
+class LookupError(StandardError):
+ name = "LookupError"
+
+ def toString(self):
+ return self.name + ": " + self.args[0]
+
+class KeyError(LookupError):
+ name = "KeyError"
+
+class AttributeError(StandardError):
+
+ name = "AttributeError"
+
+ def toString(self):
+ return "AttributeError: %s of %s" % (self.args[1], self.args[0])
+
+JS("""
+pyjslib.StopIteration = function () { };
+pyjslib.StopIteration.prototype = new Error();
+pyjslib.StopIteration.name = 'StopIteration';
+pyjslib.StopIteration.message = 'StopIteration';
+
+pyjslib.String_find = function(sub, start, end) {
+ var pos=this.indexOf(sub, start);
+ if (pyjslib.isUndefined(end)) return pos;
+
+ if (pos + sub.length>end) return -1;
+ return pos;
+}
+
+pyjslib.String_join = function(data) {
+ var text="";
+
+ if (pyjslib.isArray(data)) {
+ return data.join(this);
+ }
+ else if (pyjslib.isIteratable(data)) {
+ var iter=data.__iter__();
+ try {
+ text+=iter.next();
+ while (true) {
+ var item=iter.next();
+ text+=this + item;
+ }
+ }
+ catch (e) {
+ if (e != pyjslib.StopIteration) throw e;
+ }
+ }
+
+ return text;
+}
+
+pyjslib.String_isdigit = function() {
+ return (this.match(/^\d+$/g) != null);
+}
+
+pyjslib.String_replace = function(old, replace, count) {
+ var do_max=false;
+ var start=0;
+ var new_str="";
+ var pos=0;
+
+ if (!pyjslib.isString(old)) return this.__replace(old, replace);
+ if (!pyjslib.isUndefined(count)) do_max=true;
+
+ while (start<this.length) {
+ if (do_max && !count--) break;
+
+ pos=this.indexOf(old, start);
+ if (pos<0) break;
+
+ new_str+=this.substring(start, pos) + replace;
+ start=pos+old.length;
+ }
+ if (start<this.length) new_str+=this.substring(start);
+
+ return new_str;
+}
+
+pyjslib.String_split = function(sep, maxsplit) {
+ var items=new pyjslib.List();
+ var do_max=false;
+ var subject=this;
+ var start=0;
+ var pos=0;
+
+ if (pyjslib.isUndefined(sep) || pyjslib.isNull(sep)) {
+ sep=" ";
+ subject=subject.strip();
+ subject=subject.replace(/\s+/g, sep);
+ }
+ else if (!pyjslib.isUndefined(maxsplit)) do_max=true;
+
+ if (subject.length == 0) {
+ return items;
+ }
+
+ while (start<subject.length) {
+ if (do_max && !maxsplit--) break;
+
+ pos=subject.indexOf(sep, start);
+ if (pos<0) break;
+
+ items.append(subject.substring(start, pos));
+ start=pos+sep.length;
+ }
+ if (start<=subject.length) items.append(subject.substring(start));
+
+ return items;
+}
+
+pyjslib.String___iter__ = function() {
+ var i = 0;
+ var s = this;
+ return {
+ 'next': function() {
+ if (i >= s.length) {
+ throw pyjslib.StopIteration;
+ }
+ return s.substring(i++, i, 1);
+ },
+ '__iter__': function() {
+ return this;
+ }
+ };
+}
+
+pyjslib.String_strip = function(chars) {
+ return this.lstrip(chars).rstrip(chars);
+}
+
+pyjslib.String_lstrip = function(chars) {
+ if (pyjslib.isUndefined(chars)) return this.replace(/^\s+/, "");
+
+ return this.replace(new RegExp("^[" + chars + "]+"), "");
+}
+
+pyjslib.String_rstrip = function(chars) {
+ if (pyjslib.isUndefined(chars)) return this.replace(/\s+$/, "");
+
+ return this.replace(new RegExp("[" + chars + "]+$"), "");
+}
+
+pyjslib.String_startswith = function(prefix, start) {
+ if (pyjslib.isUndefined(start)) start = 0;
+
+ if (this.substring(start, prefix.length) == prefix) return true;
+ return false;
+}
+
+pyjslib.abs = Math.abs;
+
+""")
+
+class Class:
+ def __init__(self, name):
+ self.name = name
+
+ def __str___(self):
+ return self.name
+
+def eq(a,b):
+ JS("""
+ if (pyjslib.hasattr(a, "__cmp__")) {
+ return a.__cmp__(b) == 0;
+ } else if (pyjslib.hasattr(b, "__cmp__")) {
+ return b.__cmp__(a) == 0;
+ }
+ return a == b;
+ """)
+
+def cmp(a,b):
+ if hasattr(a, "__cmp__"):
+ return a.__cmp__(b)
+ elif hasattr(b, "__cmp__"):
+ return -b.__cmp__(a)
+ if a > b:
+ return 1
+ elif b > a:
+ return -1
+ else:
+ return 0
+
+def bool(v):
+ # this needs to stay in native code without any dependencies here,
+ # because this is used by if and while, we need to prevent
+ # recursion
+ JS("""
+ if (!v) return false;
+ switch(typeof v){
+ case 'boolean':
+ return v;
+ case 'object':
+ if (v.__nonzero__){
+ return v.__nonzero__();
+ }else if (v.__len__){
+ return v.__len__()>0;
+ }
+ return true;
+ }
+ return Boolean(v);
+ """)
+
+class List:
+ def __init__(self, data=None):
+ JS("""
+ this.l = [];
+ this.extend(data);
+ """)
+
+ def append(self, item):
+ JS(""" this.l[this.l.length] = item;""")
+
+ def extend(self, data):
+ JS("""
+ if (pyjslib.isArray(data)) {
+ n = this.l.length;
+ for (var i=0; i < data.length; i++) {
+ this.l[n+i]=data[i];
+ }
+ }
+ else if (pyjslib.isIteratable(data)) {
+ var iter=data.__iter__();
+ var i=this.l.length;
+ try {
+ while (true) {
+ var item=iter.next();
+ this.l[i++]=item;
+ }
+ }
+ catch (e) {
+ if (e != pyjslib.StopIteration) throw e;
+ }
+ }
+ """)
+
+ def remove(self, value):
+ JS("""
+ var index=this.index(value);
+ if (index<0) return false;
+ this.l.splice(index, 1);
+ return true;
+ """)
+
+ def index(self, value, start=0):
+ JS("""
+ var length=this.l.length;
+ for (var i=start; i<length; i++) {
+ if (this.l[i]==value) {
+ return i;
+ }
+ }
+ return -1;
+ """)
+
+ def insert(self, index, value):
+ JS(""" var a = this.l; this.l=a.slice(0, index).concat(value, a.slice(index));""")
+
+ def pop(self, index = -1):
+ JS("""
+ if (index<0) index = this.l.length + index;
+ var a = this.l[index];
+ this.l.splice(index, 1);
+ return a;
+ """)
+
+ def __cmp__(self, l):
+ if not isinstance(l, List):
+ return -1
+ ll = len(self) - len(l)
+ if ll != 0:
+ return ll
+ for x in range(len(l)):
+ ll = cmp(self.__getitem__(x), l[x])
+ if ll != 0:
+ return ll
+ return 0
+
+ def slice(self, lower, upper):
+ JS("""
+ if (upper==null) return pyjslib.List(this.l.slice(lower));
+ return pyjslib.List(this.l.slice(lower, upper));
+ """)
+
+ def __getitem__(self, index):
+ JS("""
+ if (index<0) index = this.l.length + index;
+ return this.l[index];
+ """)
+
+ def __setitem__(self, index, value):
+ JS(""" this.l[index]=value;""")
+
+ def __delitem__(self, index):
+ JS(""" this.l.splice(index, 1);""")
+
+ def __len__(self):
+ JS(""" return this.l.length;""")
+
+ def __contains__(self, value):
+ return self.index(value) >= 0
+
+ def __iter__(self):
+ JS("""
+ var i = 0;
+ var l = this.l;
+ return {
+ 'next': function() {
+ if (i >= l.length) {
+ throw pyjslib.StopIteration;
+ }
+ return l[i++];
+ },
+ '__iter__': function() {
+ return this;
+ }
+ };
+ """)
+
+ def reverse(self):
+ JS(""" this.l.reverse();""")
+
+ def sort(self, compareFunc=None, keyFunc=None, reverse=False):
+ if not compareFunc:
+ global cmp
+ compareFunc = cmp
+ if keyFunc and reverse:
+ def thisSort1(a,b):
+ return -compareFunc(keyFunc(a), keyFunc(b))
+ self.l.sort(thisSort1)
+ elif keyFunc:
+ def thisSort2(a,b):
+ return compareFunc(keyFunc(a), keyFunc(b))
+ self.l.sort(thisSort2)
+ elif reverse:
+ def thisSort3(a,b):
+ return -compareFunc(a, b)
+ self.l.sort(thisSort3)
+ else:
+ self.l.sort(compareFunc)
+
+ def getArray(self):
+ """
+ Access the javascript Array that is used internally by this list
+ """
+ return self.l
+
+ def __str__(self):
+ return repr(self)
+
+list = List
+
+class Tuple:
+ def __init__(self, data=None):
+ JS("""
+ this.l = [];
+ this.extend(data);
+ """)
+
+ def append(self, item):
+ JS(""" this.l[this.l.length] = item;""")
+
+ def extend(self, data):
+ JS("""
+ if (pyjslib.isArray(data)) {
+ n = this.l.length;
+ for (var i=0; i < data.length; i++) {
+ this.l[n+i]=data[i];
+ }
+ }
+ else if (pyjslib.isIteratable(data)) {
+ var iter=data.__iter__();
+ var i=this.l.length;
+ try {
+ while (true) {
+ var item=iter.next();
+ this.l[i++]=item;
+ }
+ }
+ catch (e) {
+ if (e != pyjslib.StopIteration) throw e;
+ }
+ }
+ """)
+
+ def remove(self, value):
+ JS("""
+ var index=this.index(value);
+ if (index<0) return false;
+ this.l.splice(index, 1);
+ return true;
+ """)
+
+ def index(self, value, start=0):
+ JS("""
+ var length=this.l.length;
+ for (var i=start; i<length; i++) {
+ if (this.l[i]==value) {
+ return i;
+ }
+ }
+ return -1;
+ """)
+
+ def insert(self, index, value):
+ JS(""" var a = this.l; this.l=a.slice(0, index).concat(value, a.slice(index));""")
+
+ def pop(self, index = -1):
+ JS("""
+ if (index<0) index = this.l.length + index;
+ var a = this.l[index];
+ this.l.splice(index, 1);
+ return a;
+ """)
+
+ def __cmp__(self, l):
+ if not isinstance(l, Tuple):
+ return -1
+ ll = len(self) - len(l)
+ if ll != 0:
+ return ll
+ for x in range(len(l)):
+ ll = cmp(self.__getitem__(x), l[x])
+ if ll != 0:
+ return ll
+ return 0
+
+ def slice(self, lower, upper):
+ JS("""
+ if (upper==null) return pyjslib.Tuple(this.l.slice(lower));
+ return pyjslib.Tuple(this.l.slice(lower, upper));
+ """)
+
+ def __getitem__(self, index):
+ JS("""
+ if (index<0) index = this.l.length + index;
+ return this.l[index];
+ """)
+
+ def __setitem__(self, index, value):
+ JS(""" this.l[index]=value;""")
+
+ def __delitem__(self, index):
+ JS(""" this.l.splice(index, 1);""")
+
+ def __len__(self):
+ JS(""" return this.l.length;""")
+
+ def __contains__(self, value):
+ return self.index(value) >= 0
+
+ def __iter__(self):
+ JS("""
+ var i = 0;
+ var l = this.l;
+ return {
+ 'next': function() {
+ if (i >= l.length) {
+ throw pyjslib.StopIteration;
+ }
+ return l[i++];
+ },
+ '__iter__': function() {
+ return this;
+ }
+ };
+ """)
+
+ def reverse(self):
+ JS(""" this.l.reverse();""")
+
+ def sort(self, compareFunc=None, keyFunc=None, reverse=False):
+ if not compareFunc:
+ global cmp
+ compareFunc = cmp
+ if keyFunc and reverse:
+ def thisSort1(a,b):
+ return -compareFunc(keyFunc(a), keyFunc(b))
+ self.l.sort(thisSort1)
+ elif keyFunc:
+ def thisSort2(a,b):
+ return compareFunc(keyFunc(a), keyFunc(b))
+ self.l.sort(thisSort2)
+ elif reverse:
+ def thisSort3(a,b):
+ return -compareFunc(a, b)
+ self.l.sort(thisSort3)
+ else:
+ self.l.sort(compareFunc)
+
+ def getArray(self):
+ """
+ Access the javascript Array that is used internally by this list
+ """
+ return self.l
+
+ def __str__(self):
+ return repr(self)
+
+tuple = Tuple
+
+
+class Dict:
+ def __init__(self, data=None):
+ JS("""
+ this.d = {};
+
+ if (pyjslib.isArray(data)) {
+ for (var i in data) {
+ var item=data[i];
+ this.__setitem__(item[0], item[1]);
+ //var sKey=pyjslib.hash(item[0]);
+ //this.d[sKey]=item[1];
+ }
+ }
+ else if (pyjslib.isIteratable(data)) {
+ var iter=data.__iter__();
+ try {
+ while (true) {
+ var item=iter.next();
+ this.__setitem__(item.__getitem__(0), item.__getitem__(1));
+ }
+ }
+ catch (e) {
+ if (e != pyjslib.StopIteration) throw e;
+ }
+ }
+ else if (pyjslib.isObject(data)) {
+ for (var key in data) {
+ this.__setitem__(key, data[key]);
+ }
+ }
+ """)
+
+ def __setitem__(self, key, value):
+ JS("""
+ var sKey = pyjslib.hash(key);
+ this.d[sKey]=[key, value];
+ """)
+
+ def __getitem__(self, key):
+ JS("""
+ var sKey = pyjslib.hash(key);
+ var value=this.d[sKey];
+ if (pyjslib.isUndefined(value)){
+ throw pyjslib.KeyError(key);
+ }
+ return value[1];
+ """)
+
+ def __nonzero__(self):
+ JS("""
+ for (var i in this.d){
+ return true;
+ }
+ return false;
+ """)
+
+ def __len__(self):
+ JS("""
+ var size=0;
+ for (var i in this.d) size++;
+ return size;
+ """)
+
+ def has_key(self, key):
+ return self.__contains__(key)
+
+ def __delitem__(self, key):
+ JS("""
+ var sKey = pyjslib.hash(key);
+ delete this.d[sKey];
+ """)
+
+ def __contains__(self, key):
+ JS("""
+ var sKey = pyjslib.hash(key);
+ return (pyjslib.isUndefined(this.d[sKey])) ? false : true;
+ """)
+
+ def keys(self):
+ JS("""
+ var keys=new pyjslib.List();
+ for (var key in this.d) {
+ keys.append(this.d[key][0]);
+ }
+ return keys;
+ """)
+
+ def values(self):
+ JS("""
+ var values=new pyjslib.List();
+ for (var key in this.d) values.append(this.d[key][1]);
+ return values;
+ """)
+
+ def items(self):
+ JS("""
+ var items = new pyjslib.List();
+ for (var key in this.d) {
+ var kv = this.d[key];
+ items.append(new pyjslib.List(kv))
+ }
+ return items;
+ """)
+
+ def __iter__(self):
+ return self.keys().__iter__()
+
+ def iterkeys(self):
+ return self.__iter__()
+
+ def itervalues(self):
+ return self.values().__iter__();
+
+ def iteritems(self):
+ return self.items().__iter__();
+
+ def setdefault(self, key, default_value):
+ if not self.has_key(key):
+ self[key] = default_value
+
+ def get(self, key, default_=None):
+ if not self.has_key(key):
+ return default_
+ return self[key]
+
+ def update(self, d):
+ for k,v in d.iteritems():
+ self[k] = v
+
+ def getObject(self):
+ """
+ Return the javascript Object which this class uses to store
+ dictionary keys and values
+ """
+ return self.d
+
+ def copy(self):
+ return Dict(self.items())
+
+ def __str__(self):
+ return repr(self)
+
+dict = Dict
+
+# taken from mochikit: range( [start,] stop[, step] )
+def range():
+ JS("""
+ var start = 0;
+ var stop = 0;
+ var step = 1;
+
+ if (arguments.length == 2) {
+ start = arguments[0];
+ stop = arguments[1];
+ }
+ else if (arguments.length == 3) {
+ start = arguments[0];
+ stop = arguments[1];
+ step = arguments[2];
+ }
+ else if (arguments.length>0) stop = arguments[0];
+
+ return {
+ 'next': function() {
+ if ((step > 0 && start >= stop) || (step < 0 && start <= stop)) throw pyjslib.StopIteration;
+ var rval = start;
+ start += step;
+ return rval;
+ },
+ '__iter__': function() {
+ return this;
+ }
+ }
+ """)
+
+def slice(object, lower, upper):
+ JS("""
+ if (pyjslib.isString(object)) {
+ if (lower < 0) {
+ lower = object.length + lower;
+ }
+ if (upper < 0) {
+ upper = object.length + upper;
+ }
+ if (pyjslib.isNull(upper)) upper=object.length;
+ return object.substring(lower, upper);
+ }
+ if (pyjslib.isObject(object) && object.slice)
+ return object.slice(lower, upper);
+
+ return null;
+ """)
+
+def str(text):
+ JS("""
+ if (pyjslib.hasattr(text,"__str__")) {
+ return text.__str__();
+ }
+ return String(text);
+ """)
+
+def ord(x):
+ if(isString(x) and len(x) is 1):
+ JS("""
+ return x.charCodeAt(0);
+ """)
+ else:
+ JS("""
+ throw pyjslib.TypeError();
+ """)
+ return None
+
+def chr(x):
+ JS("""
+ return String.fromCharCode(x)
+ """)
+
+def is_basetype(x):
+ JS("""
+ var t = typeof(x);
+ return t == 'boolean' ||
+ t == 'function' ||
+ t == 'number' ||
+ t == 'string' ||
+ t == 'undefined'
+ ;
+ """)
+
+def get_pyjs_classtype(x):
+ JS("""
+ if (pyjslib.hasattr(x, "__class__"))
+ if (pyjslib.hasattr(x.__class__, "__new__"))
+ var src = x.__class__.__name__;
+ return src;
+ return null;
+ """)
+
+def repr(x):
+ """ Return the string representation of 'x'.
+ """
+ JS("""
+ if (x === null)
+ return "null";
+
+ if (x === undefined)
+ return "undefined";
+
+ var t = typeof(x);
+
+ //alert("repr typeof " + t + " : " + x);
+
+ if (t == "boolean")
+ return x.toString();
+
+ if (t == "function")
+ return "<function " + x.toString() + ">";
+
+ if (t == "number")
+ return x.toString();
+
+ if (t == "string") {
+ if (x.indexOf("'") == -1)
+ return "'" + x + "'";
+ if (x.indexOf('"') == -1)
+ return '"' + x + '"';
+ var s = x.replace(new RegExp('"', "g"), '\\\\"');
+ return '"' + s + '"';
+ };
+
+ if (t == "undefined")
+ return "undefined";
+
+ // If we get here, x is an object. See if it's a Pyjamas class.
+
+ if (!pyjslib.hasattr(x, "__init__"))
+ return "<" + x.toString() + ">";
+
+ // Handle the common Pyjamas data types.
+
+ var constructor = "UNKNOWN";
+
+ constructor = pyjslib.get_pyjs_classtype(x);
+
+ //alert("repr constructor: " + constructor);
+
+ if (constructor == "Tuple") {
+ var contents = x.getArray();
+ var s = "(";
+ for (var i=0; i < contents.length; i++) {
+ s += pyjslib.repr(contents[i]);
+ if (i < contents.length - 1)
+ s += ", ";
+ };
+ s += ")"
+ return s;
+ };
+
+ if (constructor == "List") {
+ var contents = x.getArray();
+ var s = "[";
+ for (var i=0; i < contents.length; i++) {
+ s += pyjslib.repr(contents[i]);
+ if (i < contents.length - 1)
+ s += ", ";
+ };
+ s += "]"
+ return s;
+ };
+
+ if (constructor == "Dict") {
+ var keys = new Array();
+ for (var key in x.d)
+ keys.push(key);
+
+ var s = "{";
+ for (var i=0; i<keys.length; i++) {
+ var key = keys[i]
+ s += pyjslib.repr(key) + ": " + pyjslib.repr(x.d[key]);
+ if (i < keys.length-1)
+ s += ", "
+ };
+ s += "}";
+ return s;
+ };
+
+ // If we get here, the class isn't one we know -> return the class name.
+ // Note that we replace underscores with dots so that the name will
+ // (hopefully!) look like the original Python name.
+
+ //var s = constructor.replace(new RegExp('_', "g"), '.');
+ return "<" + constructor + " object>";
+ """)
+
+def float(text):
+ JS("""
+ return parseFloat(text);
+ """)
+
+def int(text, radix=0):
+ JS("""
+ return parseInt(text, radix);
+ """)
+
+def len(object):
+ JS("""
+ if (object==null) return 0;
+ if (pyjslib.isObject(object) && object.__len__) return object.__len__();
+ return object.length;
+ """)
+
+def isinstance(object_, classinfo):
+ if pyjslib.isUndefined(object_):
+ return False
+ if not pyjslib.isObject(object_):
+
+ return False
+ if _isinstance(classinfo, Tuple):
+ for ci in classinfo:
+ if isinstance(object_, ci):
+ return True
+ return False
+ else:
+ return _isinstance(object_, classinfo)
+
+def _isinstance(object_, classinfo):
+ if not pyjslib.isObject(object_):
+ return False
+ JS("""
+ if (object_.__class__){
+ var res = object_ instanceof classinfo.constructor;
+ return res;
+ }
+ return false;
+ """)
+
+def getattr(obj, name, default_):
+ JS("""
+ if ((!pyjslib.isObject(obj))||(pyjslib.isUndefined(obj[name]))){
+ if (pyjslib.isUndefined(default_)){
+ throw pyjslib.AttributeError(obj, name);
+ }else{
+ return default_;
+ }
+ }
+ if (!pyjslib.isFunction(obj[name])) return obj[name];
+ var fnwrap = function() {
+ var args = [];
+ for (var i = 0; i < arguments.length; i++) {
+ args.push(arguments[i]);
+ }
+ return obj[name].apply(obj,args);
+ }
+ fnwrap.__name__ = name;
+ return fnwrap;
+ """)
+
+def setattr(obj, name, value):
+ JS("""
+ if (!pyjslib.isObject(obj)) return null;
+
+ obj[name] = value;
+
+ """)
+
+def hasattr(obj, name):
+ JS("""
+ if (!pyjslib.isObject(obj)) return false;
+ if (pyjslib.isUndefined(obj[name])) return false;
+
+ return true;
+ """)
+
+def dir(obj):
+ JS("""
+ var properties=new pyjslib.List();
+ for (property in obj) properties.append(property);
+ return properties;
+ """)
+
+def filter(obj, method, sequence=None):
+ # object context is LOST when a method is passed, hence object must be passed separately
+ # to emulate python behaviour, should generate this code inline rather than as a function call
+ items = []
+ if sequence is None:
+ sequence = method
+ method = obj
+
+ for item in sequence:
+ if method(item):
+ items.append(item)
+ else:
+ for item in sequence:
+ if method.call(obj, item):
+ items.append(item)
+
+ return items
+
+
+def map(obj, method, sequence=None):
+ items = []
+
+ if sequence is None:
+ sequence = method
+ method = obj
+
+ for item in sequence:
+ items.append(method(item))
+ else:
+ for item in sequence:
+ items.append(method.call(obj, item))
+
+ return items
+
+
+def enumerate(sequence):
+ enumeration = []
+ nextIndex = 0
+ for item in sequence:
+ enumeration.append([nextIndex, item])
+ nextIndex = nextIndex + 1
+ return enumeration
+
+
+def min(*sequence):
+ minValue = None
+ for item in sequence:
+ if minValue is None:
+ minValue = item
+ elif item < minValue:
+ minValue = item
+ return minValue
+
+
+def max(*sequence):
+ maxValue = None
+ for item in sequence:
+ if maxValue is None:
+ maxValue = item
+ elif item > maxValue:
+ maxValue = item
+ return maxValue
+
+
+next_hash_id = 0
+
+def hash(obj):
+ JS("""
+ if (obj == null) return null;
+
+ if (obj.$H) return obj.$H;
+ if (obj.__hash__) return obj.__hash__();
+ if (obj.constructor == String || obj.constructor == Number || obj.constructor == Date) return obj;
+
+ obj.$H = ++pyjslib.next_hash_id;
+ return obj.$H;
+ """)
+
+
+# type functions from Douglas Crockford's Remedial Javascript: http://www.crockford.com/javascript/remedial.html
+def isObject(a):
+ JS("""
+ return (a != null && (typeof a == 'object')) || pyjslib.isFunction(a);
+ """)
+
+def isFunction(a):
+ JS("""
+ return typeof a == 'function';
+ """)
+
+def isString(a):
+ JS("""
+ return typeof a == 'string';
+ """)
+
+def isNull(a):
+ JS("""
+ return typeof a == 'object' && !a;
+ """)
+
+def isArray(a):
+ JS("""
+ return pyjslib.isObject(a) && a.constructor == Array;
+ """)
+
+def isUndefined(a):
+ JS("""
+ return typeof a == 'undefined';
+ """)
+
+def isIteratable(a):
+ JS("""
+ return pyjslib.isString(a) || (pyjslib.isObject(a) && a.__iter__);
+ """)
+
+def isNumber(a):
+ JS("""
+ return typeof a == 'number' && isFinite(a);
+ """)
+
+def toJSObjects(x):
+ """
+ Convert the pyjs pythonic List and Dict objects into javascript Object and Array
+ objects, recursively.
+ """
+ if isArray(x):
+ JS("""
+ var result = [];
+ for(var k=0; k < x.length; k++) {
+ var v = x[k];
+ var tv = pyjslib.toJSObjects(v);
+ result.push(tv);
+ }
+ return result;
+ """)
+ if isObject(x):
+ if isinstance(x, Dict):
+ JS("""
+ var o = x.getObject();
+ var result = {};
+ for (var i in o) {
+ result[o[i][0].toString()] = o[i][1];
+ }
+ return pyjslib.toJSObjects(result)
+ """)
+ elif isinstance(x, List):
+ return toJSObjects(x.l)
+ elif hasattr(x, '__class__'):
+ # we do not have a special implementation for custom
+ # classes, just pass it on
+ return x
+ if isObject(x):
+ JS("""
+ var result = {};
+ for(var k in x) {
+ var v = x[k];
+ var tv = pyjslib.toJSObjects(v)
+ result[k] = tv;
+ }
+ return result;
+ """)
+ return x
+
+def printFunc(objs):
+ JS("""
+ if ($wnd.console==undefined) return;
+ var s = "";
+ for(var i=0; i < objs.length; i++) {
+ if(s != "") s += " ";
+ s += objs[i];
+ }
+ console.debug(s)
+ """)
+
+def type(clsname, bases=None, methods=None):
+ """ creates a class, derived from bases, with methods and variables
+ """
+
+ JS(" var mths = {}; ")
+ if methods:
+ for k in methods.keys():
+ mth = methods[k]
+ JS(" mths[k] = mth; ")
+
+ JS(" var bss = null; ")
+ if bases:
+ JS("bss = bases.l;")
+ JS(" return pyjs_type(clsname, bss, mths); ")
+