Mercurial Repositories > eric / file comparison
comparison: Helpviewer/SpeedDial/SpeedDialReader.py
Helpviewer/SpeedDial/SpeedDialReader.py
- changeset 1699
- 10706f6ad9d2
- child 2302
- f29e9405c851
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| 1698:dba994e19891 | 1699:10706f6ad9d2 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2012 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 | |
| 7 """ | |
| 8 Module implementing a class to read speed dial data files. | |
| 9 """ | |
| 10 | |
| 11 from PyQt4.QtCore import QXmlStreamReader, QIODevice, QFile, QCoreApplication | |
| 12 | |
| 13 from .Page import Page | |
| 14 | |
| 15 | |
| 16 class SpeedDialReader(QXmlStreamReader): | |
| 17 """ | |
| 18 Class implementing a reader object for speed dial data files. | |
| 19 """ | |
| 20 def __init__(self): | |
| 21 """ | |
| 22 Constructor | |
| 23 """ | |
| 24 super().__init__() | |
| 25 | |
| 26 def read(self, fileNameOrDevice): | |
| 27 """ | |
| 28 Public method to read a user agent file. | |
| 29 | |
| 30 @param fileNameOrDevice name of the file to read (string) | |
| 31 or reference to the device to read (QIODevice) | |
| 32 @return list of speed dial pages (list of Page), number of pages per row (integer) | |
| 33 and size of the speed dial pages (integer) | |
| 34 """ | |
| 35 self.__pages = [] | |
| 36 self.__pagesPerRow = 0 | |
| 37 self.__sdSize = 0 | |
| 38 | |
| 39 if isinstance(fileNameOrDevice, QIODevice): | |
| 40 self.setDevice(fileNameOrDevice) | |
| 41 else: | |
| 42 f = QFile(fileNameOrDevice) | |
| 43 if not f.exists(): | |
| 44 return self.__pages, self.__pagesPerRow, self.__sdSize | |
| 45 f.open(QFile.ReadOnly) | |
| 46 self.setDevice(f) | |
| 47 | |
| 48 while not self.atEnd(): | |
| 49 self.readNext() | |
| 50 if self.isStartElement(): | |
| 51 version = self.attributes().value("version") | |
| 52 if self.name() == "SpeedDial" and \ | |
| 53 (not version or version == "1.0"): | |
| 54 self.__readSpeedDial() | |
| 55 else: | |
| 56 self.raiseError(QCoreApplication.translate( | |
| 57 "SpeedDialReader", | |
| 58 "The file is not a SpeedDial version 1.0 file.")) | |
| 59 | |
| 60 return self.__pages, self.__pagesPerRow, self.__sdSize | |
| 61 | |
| 62 def __readSpeedDial(self): | |
| 63 """ | |
| 64 Private method to read the speed dial data. | |
| 65 """ | |
| 66 if not self.isStartElement() and self.name() != "SpeedDial": | |
| 67 return | |
| 68 | |
| 69 while not self.atEnd(): | |
| 70 self.readNext() | |
| 71 if self.isEndElement(): | |
| 72 if self.name() in ["Pages", "Page"]: | |
| 73 continue | |
| 74 else: | |
| 75 break | |
| 76 | |
| 77 if self.isStartElement(): | |
| 78 if self.name() == "Pages": | |
| 79 attributes = self.attributes() | |
| 80 pagesPerRow = attributes.value("row") | |
| 81 if pagesPerRow.isdigit(): | |
| 82 self.__pagesPerRow = int(pagesPerRow) | |
| 83 sdSize = attributes.value("size") | |
| 84 if sdSize.isdigit(): | |
| 85 self.__sdSize = int(sdSize) | |
| 86 elif self.name() == "Page": | |
| 87 attributes = self.attributes() | |
| 88 url = attributes.value("url") | |
| 89 title = attributes.value("title") | |
| 90 if url: | |
| 91 if not title: | |
| 92 title = url | |
| 93 page = Page(url, title) | |
| 94 self.__pages.append(page) | |
| 95 else: | |
| 96 self.__skipUnknownElement() | |
| 97 | |
| 98 def __skipUnknownElement(self): | |
| 99 """ | |
| 100 Private method to skip over all unknown elements. | |
| 101 """ | |
| 102 if not self.isStartElement(): | |
| 103 return | |
| 104 | |
| 105 while not self.atEnd(): | |
| 106 self.readNext() | |
| 107 if self.isEndElement(): | |
| 108 break | |
| 109 | |
| 110 if self.isStartElement(): | |
| 111 self.__skipUnknownElement() |
