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annotate src/browser/sat_browser/nativedom.py @ 874:c030d8235c23

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theme (default): added query information in blog's atom feed alternate url
author Goffi <goffi@goffi.org>
date Wed, 02 Mar 2016 15:08:42 +0100
parents f8a7a046ff9c
children fd4eae654182
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # Libervia: a Salut à Toi frontend
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5 # Copyright (C) 2011-2016 Jérôme Poisson <goffi@goffi.org>
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 """
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21 This class provide basic DOM parsing based on native javascript parser
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22 __init__ code comes from Tim Down at http://stackoverflow.com/a/8412989
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23 """
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24
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25 from __pyjamas__ import JS
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28 class Node(object):
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30 def __init__(self, js_node):
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31 self._node = js_node
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32
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33 def _jsNodesList2List(self, js_nodes_list):
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34 ret = []
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35 for i in range(len(js_nodes_list)):
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36 #ret.append(Element(js_nodes_list.item(i)))
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37 ret.append(self.__class__(js_nodes_list.item(i))) # XXX: Ugly, but used to work around a Pyjamas's bug
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38 return ret
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40 def __getattr__(self, name):
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41 if name in ('TEXT_NODE', 'ELEMENT_NODE', 'ATTRIBUTE_NODE', 'COMMENT_NODE', 'nodeName', 'nodeType', 'wholeText'):
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42 return getattr(self._node, name)
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43 return object.__getattribute__(self, name)
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45 @property # XXX: doesn't work in --strict mode in pyjs
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46 def childNodes(self):
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47 return self._jsNodesList2List(self._node.childNodes)
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48
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49 def getAttribute(self, attr):
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50 return self._node.getAttribute(attr)
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52 def setAttribute(self, attr, value):
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53 return self._node.setAttribute(attr, value)
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55 def hasAttribute(self, attr):
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56 return self._node.hasAttribute(attr)
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58 def toxml(self):
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59 return JS("""this._node.outerHTML || new XMLSerializer().serializeToString(this._node);""")
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62 class Element(Node):
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63
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64 def __init__(self, js_node):
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65 Node.__init__(self, js_node)
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66
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67 def getElementsByTagName(self, tagName):
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68 return self._jsNodesList2List(self._node.getElementsByTagName(tagName))
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71 class Document(Node):
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73 def __init__(self, js_document):
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74 Node.__init__(self, js_document)
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75
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76 @property
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77 def documentElement(self):
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78 return Element(self._node.documentElement)
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81 class NativeDOM:
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82
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83 def __init__(self):
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84 JS("""
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85
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86 if (typeof window.DOMParser != "undefined") {
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87 this.parseXml = function(xmlStr) {
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88 return ( new window.DOMParser() ).parseFromString(xmlStr, "text/xml");
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89 };
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90 } else if (typeof window.ActiveXObject != "undefined" &&
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91 new window.ActiveXObject("Microsoft.XMLDOM")) {
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92 this.parseXml = function(xmlStr) {
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93 var xmlDoc = new window.ActiveXObject("Microsoft.XMLDOM");
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94 xmlDoc.async = "false";
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95 xmlDoc.loadXML(xmlStr);
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96 return xmlDoc;
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97 };
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98 } else {
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99 throw new Error("No XML parser found");
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100 }
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101 """)
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102
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103 def parseString(self, xml):
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104 return Document(self.parseXml(xml))