QScintilla/APIsManager.py

Mon, 28 Dec 2009 16:03:33 +0000

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Mon, 28 Dec 2009 16:03:33 +0000
changeset 0
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child 12
1d8dd9706f46
permissions
-rw-r--r--

Started porting eric4 to Python3

0
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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2007 - 2009 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing the APIsManager.
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8 """
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9
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10 import os
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11
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12 from PyQt4.QtCore import *
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13 from PyQt4.Qsci import QsciAPIs, QsciLexer
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14
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15 import Lexers
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16 import Preferences
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17 import Utilities
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18
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19 class APIs(QObject):
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20 """
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21 Class implementing an API storage entity.
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22
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23 @signal apiPreparationFinished() emitted after the API preparation has finished
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24 @signal apiPreparationCancelled() emitted after the API preparation has been cancelled
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25 @signal apiPreparationStarted() emitted after the API preparation has started
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26 """
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27 def __init__(self, language, forPreparation = False, parent = None):
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28 """
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29 Constructor
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30
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31 @param language language of the APIs object (string)
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32 @param forPreparation flag indicating this object is just needed
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33 for a preparation process (boolean)
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34 @param parent reference to the parent object (QObject)
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35 """
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36 QObject.__init__(self, parent)
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37 self.setObjectName("APIs_%s" % language)
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38
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39 self.__inPreparation = False
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40 self.__language = language
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41 self.__forPreparation = forPreparation
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42 self.__lexer = Lexers.getLexer(self.__language)
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43 self.__apifiles = Preferences.getEditorAPI(self.__language)
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44 self.__apifiles.sort()
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45 if self.__lexer is None:
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46 self.__apis = None
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47 else:
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48 self.__apis = QsciAPIs(self.__lexer)
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49 self.connect(self.__apis, SIGNAL("apiPreparationFinished()"),
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50 self.__apiPreparationFinished)
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51 self.connect(self.__apis, SIGNAL("apiPreparationCancelled()"),
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52 self.__apiPreparationCancelled)
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53 self.connect(self.__apis, SIGNAL("apiPreparationStarted()"),
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54 self.__apiPreparationStarted)
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55 self.__loadAPIs()
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56
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57 def __loadAPIs(self):
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58 """
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59 Private method to load the APIs.
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60 """
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61 if self.__apis.isPrepared():
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62 # load a prepared API file
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63 if not self.__forPreparation and Preferences.getEditor("AutoPrepareAPIs"):
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64 self.prepareAPIs()
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65 self.__apis.loadPrepared()
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66 else:
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67 # load the raw files and prepare the API file
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68 if not self.__forPreparation and Preferences.getEditor("AutoPrepareAPIs"):
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69 self.prepareAPIs(ondemand = True)
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70
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71 def reloadAPIs(self):
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72 """
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73 Public method to reload the API information.
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74 """
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75 if not self.__forPreparation and Preferences.getEditor("AutoPrepareAPIs"):
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76 self.prepareAPIs()
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77 self.__loadAPIs()
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78
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79 def getQsciAPIs(self):
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80 """
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81 Public method to get a reference to QsciAPIs object.
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82
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83 @return reference to the QsciAPIs object (QsciAPIs)
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84 """
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85 if not self.__forPreparation and Preferences.getEditor("AutoPrepareAPIs"):
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86 self.prepareAPIs()
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87 return self.__apis
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88
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89 def __apiPreparationFinished(self):
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90 """
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91 Private method called to save an API, after it has been prepared.
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92 """
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93 res = self.__apis.savePrepared()
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94 self.__inPreparation = False
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95 self.emit(SIGNAL('apiPreparationFinished()'))
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96
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97 def __apiPreparationCancelled(self):
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98 """
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99 Private method called, after the API preparation process has been cancelled.
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100 """
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101 self.__inPreparation = False
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102 self.emit(SIGNAL('apiPreparationCancelled()'))
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103
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104 def __apiPreparationStarted(self):
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105 """
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106 Private method called, when the API preparation process started.
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107 """
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108 self.__inPreparation = True
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109 self.emit(SIGNAL('apiPreparationStarted()'))
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110
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111 def prepareAPIs(self, ondemand = False, rawList = None):
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112 """
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113 Public method to prepare the APIs if necessary.
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114
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115 @keyparam ondemand flag indicating a requested preparation (boolean)
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116 @keyparam rawList list of raw API files (list of strings)
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117 """
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118 if self.__apis is None or self.__inPreparation:
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119 return
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120
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121 needsPreparation = False
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122 if ondemand:
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123 needsPreparation = True
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124 else:
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125 # check, if a new preparation is necessary
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126 preparedAPIs = self.__defaultPreparedName()
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127 if preparedAPIs:
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128 preparedAPIsInfo = QFileInfo(preparedAPIs)
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129 if not preparedAPIsInfo.exists():
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130 needsPreparation = True
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131 else:
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132 preparedAPIsTime = preparedAPIsInfo.lastModified()
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133 apifiles = Preferences.getEditorAPI(self.__language)
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134 apifiles.sort()
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135 if self.__apifiles != apifiles:
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136 needsPreparation = True
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137 for apifile in apifiles:
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138 if QFileInfo(apifile).lastModified() > preparedAPIsTime:
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139 needsPreparation = True
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140 break
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141
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142 if needsPreparation:
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143 # do the preparation
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144 self.__apis.clear()
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145 if rawList:
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146 apifiles = rawList
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147 else:
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148 apifiles = Preferences.getEditorAPI(self.__language)
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149 for apifile in apifiles:
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150 self.__apis.load(apifile)
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151 self.__apis.prepare()
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152 self.__apifiles = apifiles
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153
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154 def cancelPreparation(self):
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155 """
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156 Public slot to cancel the APIs preparation.
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157 """
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158 self.__apis and self.__apis.cancelPreparation()
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159
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160 def installedAPIFiles(self):
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161 """
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162 Public method to get a list of installed API files.
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163
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164 @return list of installed API files (list of strings)
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165 """
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166 if self.__apis is not None:
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167 return self.__apis.installedAPIFiles()
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168 else:
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169 return []
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170
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171 def __defaultPreparedName(self):
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172 """
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173 Private method returning the default name of a prepared API file.
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174
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175 @return complete filename for the Prepared APIs file (string)
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176 """
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177 if self.__apis is not None:
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178 return self.__apis.defaultPreparedName()
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179 else:
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180 return ""
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181
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182 class APIsManager(QObject):
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183 """
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184 Class implementing the APIsManager class, which is the central store for
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185 API information used by autocompletion and calltips.
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186 """
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187 def __init__(self, parent = None):
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188 """
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189 Constructor
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190
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191 @param parent reference to the parent object (QObject)
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192 """
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parents:
diff changeset
193 QObject.__init__(self, parent)
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194 self.setObjectName("APIsManager")
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195
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196 self.__apis = {}
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197
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198 def reloadAPIs(self):
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199 """
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parents:
diff changeset
200 Public slot to reload the api information.
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parents:
diff changeset
201 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
202 for api in self.__apis.values():
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parents:
diff changeset
203 api and api.reloadAPIs()
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parents:
diff changeset
204
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diff changeset
205 def getAPIs(self, language, forPreparation = False):
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206 """
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parents:
diff changeset
207 Public method to get an apis object for autocompletion/calltips.
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diff changeset
208
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diff changeset
209 This method creates and loads an APIs object dynamically upon request.
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diff changeset
210 This saves memory for languages, that might not be needed at the moment.
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diff changeset
211
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parents:
diff changeset
212 @param language the language of the requested api object (string)
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parents:
diff changeset
213 @param forPreparation flag indicating the requested api object is just needed
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parents:
diff changeset
214 for a preparation process (boolean)
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parents:
diff changeset
215 @return the apis object (APIs)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
216 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
217 if forPreparation:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
218 return APIs(language, forPreparation = forPreparation)
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parents:
diff changeset
219 else:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
220 try:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
221 return self.__apis[language]
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
222 except KeyError:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
223 if language in Lexers.getSupportedLanguages():
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
224 # create the api object
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
225 self.__apis[language] = APIs(language)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
226 return self.__apis[language]
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
227 else:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
228 return None

eric ide

mercurial