Add :message-{info,error,warning} commands.

CHANGELOG.asciidoc

@@ -17,6 +17,11 @@ This project adheres to http://semver.org/[Semantic Versioning].
 v0.3.0 (unreleased)
 -------------------
 
+Added
+~~~~~
+
+- New commands `:message-info`, `:message-error` and `:message-warning` to show messages in the statusbar, e.g. from an userscript.
+
 Changed
 ~~~~~~~
 

doc/help/commands.asciidoc

@@ -689,6 +689,9 @@ How many steps to zoom out.
 |<<enter-mode,enter-mode>>|Enter a key mode.
 |<<follow-hint,follow-hint>>|Follow the currently selected hint.
 |<<leave-mode,leave-mode>>|Leave the mode we're currently in.
+|<<message-error,message-error>>|Show an error message in the statusbar.
+|<<message-info,message-info>>|Show an info message in the statusbar.
+|<<message-warning,message-warning>>|Show a warning message in the statusbar.
 |<<open-editor,open-editor>>|Open an external editor with the currently selected form field.
 |<<prompt-accept,prompt-accept>>|Accept the current prompt.
 |<<prompt-no,prompt-no>>|Answer no to a yes/no prompt.
@@ -749,6 +752,33 @@ Follow the currently selected hint.
 === leave-mode
 Leave the mode we're currently in.
 
+[[message-error]]
+=== message-error
+Syntax: +:message-error 'text'+
+
+Show an error message in the statusbar.
+
+==== positional arguments
+* +'text'+: The text to show.
+
+[[message-info]]
+=== message-info
+Syntax: +:message-info 'text'+
+
+Show an info message in the statusbar.
+
+==== positional arguments
+* +'text'+: The text to show.
+
+[[message-warning]]
+=== message-warning
+Syntax: +:message-warning 'text'+
+
+Show a warning message in the statusbar.
+
+==== positional arguments
+* +'text'+: The text to show.
+
 [[open-editor]]
 === open-editor
 Open an external editor with the currently selected form field.

qutebrowser/misc/utilcmds.py

@@ -28,7 +28,7 @@ try:
 except ImportError:
     hunter = None
 
-from qutebrowser.utils import log, objreg, usertypes
+from qutebrowser.utils import log, objreg, usertypes, message
 from qutebrowser.commands import cmdutils, runners, cmdexc
 from qutebrowser.config import style
 from qutebrowser.misc import consolewidget
@@ -78,6 +78,36 @@ def repeat(times: {'type': int}, command, win_id: {'special': 'win_id'}):
         commandrunner.run_safely(command)
 
 
+@cmdutils.register(hide=True)
+def message_error(win_id: {'special': 'win_id'}, text):
+    """Show an error message in the statusbar.
+
+    Args:
+        text: The text to show.
+    """
+    message.error(win_id, text)
+
+
+@cmdutils.register(hide=True)
+def message_info(win_id: {'special': 'win_id'}, text):
+    """Show an info message in the statusbar.
+
+    Args:
+        text: The text to show.
+    """
+    message.info(win_id, text)
+
+
+@cmdutils.register(hide=True)
+def message_warning(win_id: {'special': 'win_id'}, text):
+    """Show a warning message in the statusbar.
+
+    Args:
+        text: The text to show.
+    """
+    message.warning(win_id, text)
+
+
 @cmdutils.register(debug=True)
 def debug_crash(typ: {'type': ('exception', 'segfault')}='exception'):
     """Crash for debugging purposes.