Refactor different LineEdit classes.

qutebrowser/widgets/misc.py

@@ -20,14 +20,16 @@
 """Misc. widgets used at different places."""
 
 from PyQt5.QtWidgets import QLineEdit
+from PyQt5.QtGui import QValidator
+
+from qutebrowser.models.cmdhistory import History
 
 
-class MinimalLineEdit(QLineEdit):
+class MinimalLineEditMixin:
 
-    """A LineEdit with a minimal look (without borders/background)."""
+    """A mixin to give a QLineEdit a minimal look and nicer repr()."""
 
-    def __init__(self, parent=None):
-        super().__init__(parent)
+    def __init__(self):
         self.setStyleSheet("""
             QLineEdit {
                 border: 0px;
@@ -38,3 +40,46 @@ class MinimalLineEdit(QLineEdit):
 
     def __repr__(self):
         return '<{} "{}">'.format(self.__class__.__name__, self.text())
+
+
+class CommandLineEdit(QLineEdit):
+
+    """A QLineEdit with a history and prompt chars.
+
+    Attributes:
+        history: The command history object.
+        _validator: The current command validator.
+    """
+
+    def __init__(self, parent, prompts):
+        super().__init__(parent)
+        self.history = History()
+        self._validator = _CommandValidator(prompts, parent=self)
+        self.setValidator(self._validator)
+
+    def __repr__(self):
+        return '<{} "{}">'.format(self.__class__.__name__, self.text())
+
+
+class _CommandValidator(QValidator):
+
+    """Validator to prevent the : from getting deleted."""
+
+    def __init__(self, prompts, parent=None):
+        super().__init__(parent)
+        self.prompts = prompts
+
+    def validate(self, string, pos):
+        """Override QValidator::validate.
+
+        Args:
+            string: The string to validate.
+            pos: The current curser position.
+
+        Return:
+            A tuple (status, string, pos) as a QValidator should.
+        """
+        if any(string.startswith(c) for c in self.prompts):
+            return (QValidator.Acceptable, string, pos)
+        else:
+            return (QValidator.Invalid, string, pos)

qutebrowser/widgets/statusbar/command.py

@@ -25,26 +25,24 @@ from PyQt5.QtGui import QValidator
 
 import qutebrowser.keyinput.modeman as modeman
 import qutebrowser.commands.utils as cmdutils
-from qutebrowser.widgets.misc import MinimalLineEdit
+from qutebrowser.widgets.misc import MinimalLineEditMixin, CommandLineEdit
 from qutebrowser.commands.runners import CommandRunner
 from qutebrowser.keyinput.modeparsers import STARTCHARS
 from qutebrowser.utils.log import completion as logger
-from qutebrowser.models.cmdhistory import (History, HistoryEmptyError,
+from qutebrowser.models.cmdhistory import (HistoryEmptyError,
                                            HistoryEndReachedError)
 from qutebrowser.commands.exceptions import CommandError
 from qutebrowser.utils.usertypes import KeyMode
 
 
-class Command(MinimalLineEdit):
+class Command(MinimalLineEditMixin, CommandLineEdit):
 
     """The commandline part of the statusbar.
 
     Attributes:
-        history: The command history object.
         cursor_part: The part the cursor is currently over.
         parts: A list of strings with the split commandline
         prefix: The prefix currently entered.
-        _validator: The current command validator.
 
     Signals:
         got_cmd: Emitted when a command is triggered by the user.
@@ -79,12 +77,11 @@ class Command(MinimalLineEdit):
     # for a possible fix.
 
     def __init__(self, parent=None):
-        super().__init__(parent)
+        CommandLineEdit.__init__(self, parent, STARTCHARS)
+        MinimalLineEditMixin.__init__(self)
         self.cursor_part = 0
-        self.history = History(QApplication.instance().cmd_history.data)
-        self._validator = _CommandValidator(self)
+        self.history.history = QApplication.instance().cmd_history.data
         self._empty_item_idx = None
-        self.setValidator(self._validator)
         self.textEdited.connect(self.on_text_edited)
         self.cursorPositionChanged.connect(self._update_cursor_part)
         self.cursorPositionChanged.connect(self.on_cursor_position_changed)
@@ -301,23 +298,3 @@ class Command(MinimalLineEdit):
         """Extend focusInEvent to enter command mode."""
         modeman.maybe_enter(KeyMode.command, 'cmd focus')
         super().focusInEvent(e)
-
-
-class _CommandValidator(QValidator):
-
-    """Validator to prevent the : from getting deleted."""
-
-    def validate(self, string, pos):
-        """Override QValidator::validate.
-
-        Args:
-            string: The string to validate.
-            pos: The current curser position.
-
-        Return:
-            A tuple (status, string, pos) as a QValidator should.
-        """
-        if any(string.startswith(c) for c in STARTCHARS):
-            return (QValidator.Acceptable, string, pos)
-        else:
-            return (QValidator.Invalid, string, pos)

qutebrowser/widgets/statusbar/prompt.py

@@ -20,13 +20,20 @@
 """Prompt shown in the statusbar."""
 
 from PyQt5.QtCore import pyqtSignal
-from PyQt5.QtWidgets import QHBoxLayout, QWidget
+from PyQt5.QtWidgets import QHBoxLayout, QWidget, QLineEdit
 
-from qutebrowser.widgets.misc import MinimalLineEdit
+from qutebrowser.widgets.misc import MinimalLineEditMixin
 from qutebrowser.widgets.statusbar.textbase import TextBase
 from qutebrowser.widgets.statusbar.prompter import Prompter
 
 
+class PromptLineEdit(MinimalLineEditMixin, QLineEdit):
+
+    def __init__(self, parent=None):
+        QLineEdit.__init__(self, parent)
+        MinimalLineEditMixin.__init__(self)
+
+
 class Prompt(QWidget):
 
     """The prompt widget shown in the statusbar.
@@ -54,7 +61,7 @@ class Prompt(QWidget):
         self.txt = TextBase()
         self._hbox.addWidget(self.txt)
 
-        self.lineedit = MinimalLineEdit()
+        self.lineedit = PromptLineEdit()
         self._hbox.addWidget(self.lineedit)
 
         self.prompter = Prompter(self)