Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/QScintilla/ShellHistoryDialog.py	Sun Apr 14 15:09:21 2019 +0200
@@ -0,0 +1,149 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2008 - 2019 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing the shell history dialog.
+"""
+
+from __future__ import unicode_literals
+
+import os
+
+from PyQt5.QtCore import pyqtSlot, Qt, QItemSelectionModel
+from PyQt5.QtWidgets import QListWidgetItem, QDialog
+
+from .Ui_ShellHistoryDialog import Ui_ShellHistoryDialog
+
+
+class ShellHistoryDialog(QDialog, Ui_ShellHistoryDialog):
+    """
+    Class implementing the shell history dialog.
+    """
+    def __init__(self, history, vm, shell):
+        """
+        Constructor
+        
+        @param history reference to the current shell history
+        @type list of str
+        @param vm reference to the viewmanager object
+        @type ViewManager
+        @param shell reference to the shell object
+        @type Shell
+        """
+        super(ShellHistoryDialog, self).__init__(shell)
+        self.setupUi(self)
+        
+        self.__vm = vm
+        self.__shell = shell
+        
+        self.historyList.addItems(history)
+        index = shell.getHistoryIndex()
+        if index < 0 or index >= len(history):
+            self.historyList.setCurrentRow(
+                self.historyList.count() - 1, QItemSelectionModel.Select)
+        else:
+            self.historyList.setCurrentRow(index, QItemSelectionModel.Select)
+        self.historyList.scrollToItem(self.historyList.currentItem())
+    
+    @pyqtSlot()
+    def on_historyList_itemSelectionChanged(self):
+        """
+        Private slot to handle a change of the selection.
+        """
+        selected = len(self.historyList.selectedItems()) > 0
+        self.copyButton.setEnabled(selected and
+                                   self.__vm.activeWindow() is not None)
+        self.deleteButton.setEnabled(selected)
+        self.executeButton.setEnabled(selected)
+    
+    @pyqtSlot(QListWidgetItem)
+    def on_historyList_itemDoubleClicked(self, item):
+        """
+        Private slot to handle a double click of an item.
+        
+        @param item reference to the item that was double clicked
+            (QListWidgetItem)
+        """
+        self.on_executeButton_clicked()
+    
+    @pyqtSlot()
+    def on_deleteButton_clicked(self):
+        """
+        Private slot to delete the selected entries from the history.
+        """
+        for itm in self.historyList.selectedItems():
+            ditm = self.historyList.takeItem(self.historyList.row(itm))
+            del ditm
+        self.historyList.scrollToItem(self.historyList.currentItem())
+        self.historyList.setFocus()
+    
+    @pyqtSlot()
+    def on_copyButton_clicked(self):
+        """
+        Private slot to copy the selected entries to the current editor.
+        """
+        aw = self.__vm.activeWindow()
+        if aw is not None:
+            lines = []
+            for index in range(self.historyList.count()):
+                # selectedItems() doesn't seem to preserve the order
+                itm = self.historyList.item(index)
+                if itm.isSelected():
+                    lines.append(itm.text())
+            eol = aw.getLineSeparator()
+            txt = eol.join(lines) + eol
+            aw.insert(txt)
+        self.historyList.setFocus()
+    
+    @pyqtSlot()
+    def on_executeButton_clicked(self):
+        """
+        Private slot to execute the selected entries in the shell.
+        """
+        lines = []
+        for index in range(self.historyList.count()):
+            # selectedItems() doesn't seem to preserve the order
+            itm = self.historyList.item(index)
+            if itm.isSelected():
+                lines.append(itm.text())
+        cmds = os.linesep.join(lines) + os.linesep
+        self.__shell.executeLines(
+            cmds,
+            historyIndex=self.historyList.currentRow())
+        
+        # reload the list because shell modified it
+        self.on_reloadButton_clicked()
+    
+    @pyqtSlot()
+    def on_reloadButton_clicked(self):
+        """
+        Private slot to reload the history.
+        """
+        history = self.__shell.getHistory(None)
+        index = self.__shell.getHistoryIndex()
+        
+        self.historyList.clear()
+        self.historyList.addItems(history)
+        if index < 0 or index >= len(history):
+            self.historyList.setCurrentRow(
+                self.historyList.count() - 1, QItemSelectionModel.Select)
+        else:
+            self.historyList.setCurrentRow(index, QItemSelectionModel.Select)
+        self.historyList.scrollToItem(self.historyList.currentItem())
+        
+        self.historyList.setFocus(Qt.OtherFocusReason)
+        
+    def getHistory(self):
+        """
+        Public method to retrieve the history from the dialog.
+        
+        @return tuple containing the list of history entries and the
+            current row
+        @rtype tuple of (list of str, int)
+        """
+        history = []
+        for index in range(self.historyList.count()):
+            history.append(self.historyList.item(index).text())
+        return history, self.historyList.currentRow()