Mercurial > libervia-web
diff browser/sat_browser/nativedom.py @ 1124:28e3eb3bb217
files reorganisation and installation rework:
- files have been reorganised to follow other SàT projects and usual Python organisation (no more "/src" directory)
- VERSION file is now used, as for other SàT projects
- replace the overcomplicated setup.py be a more sane one. Pyjamas part is not compiled anymore by setup.py, it must be done separatly
- removed check for data_dir if it's empty
- installation tested working in virtual env
- libervia launching script is now in bin/libervia
author | Goffi <goffi@goffi.org> |
---|---|
date | Sat, 25 Aug 2018 17:59:48 +0200 |
parents | src/browser/sat_browser/nativedom.py@f2170536ba23 |
children | 2af117bfe6cc |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/browser/sat_browser/nativedom.py Sat Aug 25 17:59:48 2018 +0200 @@ -0,0 +1,104 @@ +#!/usr/bin/python +# -*- coding: utf-8 -*- + +# Libervia: a Salut à Toi frontend +# Copyright (C) 2011-2018 Jérôme Poisson <goffi@goffi.org> + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU Affero General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Affero General Public License for more details. + +# You should have received a copy of the GNU Affero General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +""" +This class provide basic DOM parsing based on native javascript parser +__init__ code comes from Tim Down at http://stackoverflow.com/a/8412989 +""" + +from __pyjamas__ import JS + + +class Node(object): + + def __init__(self, js_node): + self._node = js_node + + def _jsNodesList2List(self, js_nodes_list): + ret = [] + for i in range(len(js_nodes_list)): + #ret.append(Element(js_nodes_list.item(i))) + ret.append(self.__class__(js_nodes_list.item(i))) # XXX: Ugly, but used to work around a Pyjamas's bug + return ret + + def __getattr__(self, name): + if name in ('TEXT_NODE', 'ELEMENT_NODE', 'ATTRIBUTE_NODE', 'COMMENT_NODE', 'nodeName', 'nodeType', 'wholeText'): + return getattr(self._node, name) + return object.__getattribute__(self, name) + + @property # XXX: doesn't work in --strict mode in pyjs + def childNodes(self): + return self._jsNodesList2List(self._node.childNodes) + + def getAttribute(self, attr): + return self._node.getAttribute(attr) + + def setAttribute(self, attr, value): + return self._node.setAttribute(attr, value) + + def hasAttribute(self, attr): + return self._node.hasAttribute(attr) + + def toxml(self): + return JS("""this._node.outerHTML || new XMLSerializer().serializeToString(this._node);""") + + +class Element(Node): + + def __init__(self, js_node): + Node.__init__(self, js_node) + + def getElementsByTagName(self, tagName): + return self._jsNodesList2List(self._node.getElementsByTagName(tagName)) + + +class Document(Node): + + def __init__(self, js_document): + Node.__init__(self, js_document) + + @property + def documentElement(self): + return Element(self._node.documentElement) + + +class NativeDOM: + + def __init__(self): + JS(""" + + if (typeof window.DOMParser != "undefined") { + this.parseXml = function(xmlStr) { + return ( new window.DOMParser() ).parseFromString(xmlStr, "text/xml"); + }; + } else if (typeof window.ActiveXObject != "undefined" && + new window.ActiveXObject("Microsoft.XMLDOM")) { + this.parseXml = function(xmlStr) { + var xmlDoc = new window.ActiveXObject("Microsoft.XMLDOM"); + xmlDoc.async = "false"; + xmlDoc.loadXML(xmlStr); + return xmlDoc; + }; + } else { + throw new Error("No XML parser found"); + } + """) + + def parseString(self, xml): + return Document(self.parseXml(xml))