Add utilcmds and :later command.

qutebrowser/app.py

@@ -46,6 +46,7 @@ import qutebrowser.utils.version as version
 import qutebrowser.utils.url as urlutils
 import qutebrowser.utils.message as message
 import qutebrowser.commands.userscripts as userscripts
+import qutebrowser.utils.utilcmds as utilcmds
 from qutebrowser.config.config import ConfigManager
 from qutebrowser.keyinput.modeman import ModeManager
 from qutebrowser.widgets.mainwindow import MainWindow
@@ -139,6 +140,8 @@ class Application(QApplication):
         proxy.init()
         log.init.debug("Initializing userscripts...")
         userscripts.init()
+        log.init.debug("Initializing utility commands...")
+        utilcmds.init()
         log.init.debug("Initializing cookies...")
         self.cookiejar = CookieJar(self)
         log.init.debug("Initializing commands...")

qutebrowser/utils/utilcmds.py

@@ -0,0 +1,62 @@
+# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
+
+# Copyright 2014 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
+#
+# This file is part of qutebrowser.
+#
+# qutebrowser is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# qutebrowser is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
+
+"""Misc. utility commands exposed to the user."""
+
+from functools import partial
+
+import qutebrowser.commands.utils as cmdutils
+from qutebrowser.utils.usertypes import Timer
+from qutebrowser.commands.exceptions import CommandError
+from qutebrowser.commands.managers import CommandManager
+
+
+_timers = []
+_commandmanager = None
+
+
+def init():
+    """Initialize the global _commandmanager."""
+    global _commandmanager
+    _commandmanager = CommandManager()
+
+
+@cmdutils.register(nargs=(2, None))
+def later(ms, *command):
+    """Execute a command after some time.
+
+    Args:
+        ms: How many milliseconds to wait.
+        command: The command/args to run.
+    """
+    ms = int(ms)
+    timer = Timer(name='later')
+    timer.setSingleShot(True)
+    if ms < 0:
+        raise CommandError("I can't run something in the past!")
+    try:
+        timer.setInterval(ms)
+    except OverflowError:
+        raise CommandError("Numeric argument is too large for internal int "
+                           "representation.")
+    _timers.append(timer)
+    cmdline = ' '.join(command)
+    timer.timeout.connect(partial(_commandmanager.run_safely, cmdline))
+    timer.timeout.connect(lambda: _timers.remove(timer))
+    timer.start()