bumblebee-status/modules/contrib/shortcut.py

# pylint: disable=C0112,R0903

"""Shows a widget per user-defined shortcut and allows to define the behaviour
when clicking on it.

For more than one shortcut, the commands and labels are strings separated by
a demiliter (; semicolon by default).

For example in order to create two shortcuts labeled A and B with commands
cmdA and cmdB you could do:

 ./bumblebee-status -m shortcut -p shortcut.cmd='ls;ps' shortcut.label='A;B'

Parameters:
    * shortcut.cmds  : List of commands to execute
    * shortcut.labels: List of widgets' labels (text)
    * shortcut.delim : Commands and labels delimiter (; semicolon by default)
"""

import logging

LINK = 'https://github.com/tobi-wan-kenobi/bumblebee-status/wiki'
LABEL = 'Click me'

import core.module
import core.widget
import core.input
import core.decorators

class Module(core.module.Module):
    @core.decorators.every(minutes=60)
    def __init__(self, config, theme):
        super().__init__(config, theme, [])

        self.__labels = self.parameter('labels', '{}'.format(LABEL))
        self.__cmds = self.parameter('cmds', 'firefox {}'.format(LINK))
        self.__delim = self.parameter('delim', ';')

        self.update_widgets()

    def update_widgets(self):
        """ Creates a set of widget per user define shortcut."""

        widgets = self.widgets()

        cmds = self.__cmds.split(self.__delim)
        labels = self.__labels.split(self.__delim)

        # to be on the safe side create as many widgets as there are data (cmds or labels)
        num_shortcuts = min(len(cmds), len(labels))

        # report possible problem as a warning
        if len(cmds) is not len(labels):
            logging.warning('shortcut: the number of commands does not match '\
                            'the number of provided labels.')
            logging.warning('cmds : %s, labels : %s', cmds, labels)

        for idx in range(0, num_shortcuts):
            cmd = cmds[idx]
            label = labels[idx]

            widget = core.widget.Widget(full_text=label)
            core.input.register(widget, button=core.input.LEFT_MOUSE, cmd=cmd)

            widgets.append(widget)

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