eric6/QScintilla/ShellHistoryDialog.py

Sat, 27 Feb 2021 12:08:23 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sat, 27 Feb 2021 12:08:23 +0100
changeset 8138
169e65a6787c
parent 7923
91e843545d9a
child 8143
2c730d5fd177
permissions
-rw-r--r--

Shell: added functionality to show a prompt when the main client process has exited (e.g. a script ended).

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2008 - 2021 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 shell history dialog.
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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 PyQt5.QtCore import pyqtSlot, Qt, QItemSelectionModel
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13 from PyQt5.QtWidgets import QListWidgetItem, QDialog
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14
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1d8dd9706f46 First commit after changing to Python 3.1.
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15 from .Ui_ShellHistoryDialog import Ui_ShellHistoryDialog
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16
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17
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18 class ShellHistoryDialog(QDialog, Ui_ShellHistoryDialog):
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19 """
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20 Class implementing the shell history dialog.
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21 """
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22 def __init__(self, history, vm, shell):
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23 """
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24 Constructor
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25
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26 @param history reference to the current shell history
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27 @type list of str
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28 @param vm reference to the viewmanager object
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29 @type ViewManager
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30 @param shell reference to the shell object
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31 @type Shell
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32 """
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33 super(ShellHistoryDialog, self).__init__(shell)
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34 self.setupUi(self)
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35
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36 self.__vm = vm
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37 self.__shell = shell
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38
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39 self.historyList.addItems(history)
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40 index = shell.getHistoryIndex()
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41 if index < 0 or index >= len(history):
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42 self.historyList.setCurrentRow(
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43 self.historyList.count() - 1, QItemSelectionModel.Select)
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44 else:
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45 self.historyList.setCurrentRow(index, QItemSelectionModel.Select)
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46 self.historyList.scrollToItem(self.historyList.currentItem())
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47
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48 @pyqtSlot()
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49 def on_historyList_itemSelectionChanged(self):
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50 """
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51 Private slot to handle a change of the selection.
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52 """
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53 selected = len(self.historyList.selectedItems()) > 0
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54 self.copyButton.setEnabled(selected and
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55 self.__vm.activeWindow() is not None)
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56 self.deleteButton.setEnabled(selected)
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57 self.executeButton.setEnabled(selected)
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58
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59 @pyqtSlot(QListWidgetItem)
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60 def on_historyList_itemDoubleClicked(self, item):
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61 """
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62 Private slot to handle a double click of an item.
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63
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64 @param item reference to the item that was double clicked
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65 (QListWidgetItem)
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66 """
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67 self.on_executeButton_clicked()
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68
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69 @pyqtSlot()
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70 def on_deleteButton_clicked(self):
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71 """
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72 Private slot to delete the selected entries from the history.
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73 """
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74 for itm in self.historyList.selectedItems():
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75 ditm = self.historyList.takeItem(self.historyList.row(itm))
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76 del ditm
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77 self.historyList.scrollToItem(self.historyList.currentItem())
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78 self.historyList.setFocus()
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79
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80 @pyqtSlot()
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81 def on_copyButton_clicked(self):
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82 """
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83 Private slot to copy the selected entries to the current editor.
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84 """
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85 aw = self.__vm.activeWindow()
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86 if aw is not None:
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87 lines = []
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88 for index in range(self.historyList.count()):
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89 # selectedItems() doesn't seem to preserve the order
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90 itm = self.historyList.item(index)
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91 if itm.isSelected():
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92 lines.append(itm.text())
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93 eol = aw.getLineSeparator()
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94 txt = eol.join(lines) + eol
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95 aw.insert(txt)
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96 self.historyList.setFocus()
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97
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98 @pyqtSlot()
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99 def on_executeButton_clicked(self):
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100 """
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101 Private slot to execute the selected entries in the shell.
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102 """
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103 lines = []
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104 for index in range(self.historyList.count()):
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105 # selectedItems() doesn't seem to preserve the order
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106 itm = self.historyList.item(index)
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107 if itm.isSelected():
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108 lines.append(itm.text())
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109 cmds = os.linesep.join(lines) + os.linesep
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110 self.__shell.executeLines(
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111 cmds,
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112 historyIndex=self.historyList.currentRow())
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113
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114 # reload the list because shell modified it
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115 self.on_reloadButton_clicked()
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116
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117 @pyqtSlot()
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118 def on_reloadButton_clicked(self):
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119 """
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120 Private slot to reload the history.
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121 """
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122 history = self.__shell.getHistory(None)
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123 index = self.__shell.getHistoryIndex()
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124
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125 self.historyList.clear()
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126 self.historyList.addItems(history)
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127 if index < 0 or index >= len(history):
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128 self.historyList.setCurrentRow(
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129 self.historyList.count() - 1, QItemSelectionModel.Select)
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130 else:
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131 self.historyList.setCurrentRow(index, QItemSelectionModel.Select)
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132 self.historyList.scrollToItem(self.historyList.currentItem())
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133
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134 self.historyList.setFocus(Qt.OtherFocusReason)
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135
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136 def getHistory(self):
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137 """
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138 Public method to retrieve the history from the dialog.
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139
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140 @return tuple containing the list of history entries and the
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141 current row
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142 @rtype tuple of (list of str, int)
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143 """
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144 history = []
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145 for index in range(self.historyList.count()):
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146 history.append(self.historyList.item(index).text())
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147 return history, self.historyList.currentRow()

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