5db5e02086
Added theme-options ("minwidth" and "align") for setting the minimum
width and the alignment of a widget.
Also, allow widget to provide defaults for the theme options by setting
an attribute in their store called "theme-<name of the theme option>".
For example, a widget can now define a default alignment by using:
widget.set("theme-align", "default-value").
112 lines
3.5 KiB
Python
112 lines
3.5 KiB
Python
# pylint: disable=R0201
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"""Output classes"""
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import sys
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import json
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import uuid
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import bumblebee.store
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class Widget(bumblebee.store.Store):
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"""Represents a single visible block in the status bar"""
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def __init__(self, full_text="", name=""):
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super(Widget, self).__init__()
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self._full_text = full_text
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self.module = None
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self._module = None
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self.name = name
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self.id = str(uuid.uuid4())
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def link_module(self, module):
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"""Set the module that spawned this widget
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This is done outside the constructor to avoid having to
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pass in the module name in every concrete module implementation"""
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self.module = module.name
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self._module = module
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def state(self):
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"""Return the widget's state"""
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if self._module and hasattr(self._module, "state"):
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states = self._module.state(self)
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if not isinstance(states, list):
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return [states]
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return states
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return []
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def full_text(self, value=None):
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"""Set or retrieve the full text to display in the widget"""
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if value:
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self._full_text = value
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else:
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if callable(self._full_text):
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return self._full_text(self)
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else:
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return self._full_text
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class I3BarOutput(object):
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"""Manage output according to the i3bar protocol"""
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def __init__(self, theme):
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self._theme = theme
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self._widgets = []
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self._started = False
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def started(self):
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return self._started
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def start(self):
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"""Print start preamble for i3bar protocol"""
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self._started = True
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sys.stdout.write(json.dumps({"version": 1, "click_events": True}) + "[\n")
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def stop(self):
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"""Finish i3bar protocol"""
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sys.stdout.write("]\n")
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def draw(self, widget, module=None, engine=None):
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"""Draw a single widget"""
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full_text = widget.full_text()
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padding = self._theme.padding(widget)
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prefix = self._theme.prefix(widget, padding)
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suffix = self._theme.suffix(widget, padding)
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if prefix:
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full_text = u"{}{}".format(prefix, full_text)
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if suffix:
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full_text = u"{}{}".format(full_text, suffix)
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separator = self._theme.separator(widget)
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if separator:
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self._widgets.append({
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u"full_text": separator,
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"separator": False,
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"color": self._theme.separator_fg(widget),
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"background": self._theme.separator_bg(widget),
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"separator_block_width": self._theme.separator_block_width(widget),
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})
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self._widgets.append({
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u"full_text": full_text,
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"color": self._theme.fg(widget),
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"background": self._theme.bg(widget),
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"separator_block_width": self._theme.separator_block_width(widget),
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"separator": True if separator is None else False,
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"min_width": self._theme.minwidth(widget),
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"align": self._theme.align(widget),
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"instance": widget.id,
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"name": module.id,
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})
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def begin(self):
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"""Start one output iteration"""
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self._widgets = []
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self._theme.reset()
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def flush(self):
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"""Flushes output"""
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sys.stdout.write(json.dumps(self._widgets))
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def end(self):
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"""Finalizes output"""
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sys.stdout.write(",\n")
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sys.stdout.flush()
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# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
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