Add a ui -> hide-mouse-cursor option.

doc/help/settings.asciidoc

@@ -43,6 +43,7 @@
 |<<ui-remove-finished-downloads,remove-finished-downloads>>|Whether to remove finished downloads automatically.
 |<<ui-hide-statusbar,hide-statusbar>>|Whether to hide the statusbar unless a message is shown.
 |<<ui-window-title-format,window-title-format>>|The format to use for the window title. The following placeholders are defined:
+|<<ui-hide-mouse-cursor,hide-mouse-cursor>>|Whether to hide the mouse cursor.
 |==============
 
 .Quick reference for section ``network''
@@ -564,6 +565,17 @@ The format to use for the window title. The following placeholders are defined:
 
 Default: +pass:[{perc}{title}{title_sep}qutebrowser]+
 
+[[ui-hide-mouse-cursor]]
+=== hide-mouse-cursor
+Whether to hide the mouse cursor.
+
+Valid values:
+
+ * +true+
+ * +false+
+
+Default: +pass:[false]+
+
 == network
 Settings related to the network.
 

qutebrowser/app.py

@@ -33,7 +33,7 @@ import faulthandler
 import json
 
 from PyQt5.QtWidgets import QApplication, QDialog, QMessageBox
-from PyQt5.QtGui import QDesktopServices, QPixmap, QIcon
+from PyQt5.QtGui import QDesktopServices, QPixmap, QIcon, QCursor
 from PyQt5.QtCore import (pyqtSlot, qInstallMessageHandler, QTimer, QUrl,
                           QObject, Qt, QSocketNotifier)
 try:
@@ -210,6 +210,19 @@ class Application(QApplication):
         objreg.register('cache', diskcache)
         log.init.debug("Initializing completions...")
         completionmodels.init()
+        log.init.debug("Misc initialization...")
+        self.maybe_hide_mouse_cursor()
+        objreg.get('config').changed.connect(self.maybe_hide_mouse_cursor)
+
+    @config.change_filter('ui', 'hide-mouse-cursor')
+    def maybe_hide_mouse_cursor(self):
+        """Hide the mouse cursor if it isn't yet and it's configured."""
+        if config.get('ui', 'hide-mouse-cursor'):
+            if self.overrideCursor() is not None:
+                return
+            self.setOverrideCursor(QCursor(Qt.BlankCursor))
+        else:
+            self.restoreOverrideCursor()
 
     def _init_icon(self):
         """Initialize the icon of qutebrowser."""
@@ -940,8 +953,10 @@ class Application(QApplication):
                 objreg.delete('last-focused-main-window')
             except KeyError:
                 pass
+            self.restoreOverrideCursor()
         else:
             objreg.register('last-focused-main-window', window, update=True)
+            self.maybe_hide_mouse_cursor()
 
     @pyqtSlot(QUrl)
     def open_desktopservices_url(self, url):

qutebrowser/config/configdata.py

@@ -297,6 +297,10 @@ def data(readonly=False):
              "otherwise.\n"
              "* `{id}`: The internal window ID of this window."),
 
+            ('hide-mouse-cursor',
+             SettingValue(typ.Bool(), 'false'),
+             "Whether to hide the mouse cursor."),
+
             readonly=readonly
         )),
 

qutebrowser/keyinput/modeman.py

@@ -131,9 +131,20 @@ class EventFilter(QObject):
     def eventFilter(self, obj, event):
         """Forward events to the correct modeman."""
         try:
+            qapp = QApplication.instance()
             if not self._activated:
                 return False
-            if event.type() not in [QEvent.KeyPress, QEvent.KeyRelease]:
+            if event.type() in [QEvent.MouseButtonDblClick,
+                                QEvent.MouseButtonPress,
+                                QEvent.MouseButtonRelease,
+                                QEvent.MouseMove]:
+                if qapp.overrideCursor() is None:
+                    # Mouse cursor shown -> don't filter event
+                    return False
+                else:
+                    # Mouse cursor hidden -> filter event
+                    return True
+            elif event.type() not in [QEvent.KeyPress, QEvent.KeyRelease]:
                 # We're not interested in non-key-events so we pass them
                 # through.
                 return False
@@ -141,8 +152,7 @@ class EventFilter(QObject):
                 # We already handled this same event at some point earlier, so
                 # we're not interested in it anymore.
                 return False
-            if (QApplication.instance().activeWindow() not in
+            if qapp.activeWindow() not in objreg.window_registry.values():
-                    objreg.window_registry.values()):
                 # Some other window (print dialog, etc.) is focused so we pass
                 # the event through.
                 return False

qutebrowser/mainwindow/mainwindow.py

@@ -128,6 +128,10 @@ class MainWindow(QWidget):
         # we defer this until everything else is initialized.
         QTimer.singleShot(0, self._connect_resize_completion)
         objreg.get('config').changed.connect(self.on_config_changed)
+
+        if config.get('ui', 'hide-mouse-cursor'):
+            self.setCursor(Qt.BlankCursor)
+
         #self.retranslateUi(MainWindow)
         #self.tabWidget.setCurrentIndex(0)
         #QtCore.QMetaObject.connectSlotsByName(MainWindow)