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import sys
UZBLS = {}
DEFAULTS = {'width': 8,
'done': '=',
'pending': '.',
'format': '[%d%a%p]%c',
'spinner': '-\\|/',
'sprites': 'loading',
'updates': 0,
'progress': 100}
def error(msg):
sys.stderr.write("progress_bar plugin: error: %s\n" % msg)
def add_instance(uzbl, *args):
UZBLS[uzbl] = dict(DEFAULTS)
def del_instance(uzbl, *args):
if uzbl in UZBLS:
del UZBLS[uzbl]
def get_progress_config(uzbl):
if uzbl not in UZBLS:
add_instance(uzbl)
return UZBLS[uzbl]
def update_progress(uzbl, prog=None):
'''Updates the progress_format variable on LOAD_PROGRESS update.
The current substitution options are:
%d = done char * done
%p = pending char * remaining
%c = percent done
%i = int done
%s = -\|/ spinner
%t = percent pending
%o = int pending
%r = sprites
'''
prog_config = get_progress_config(uzbl)
config = uzbl.get_config()
if prog is None:
prog = prog_config['progress']
else:
prog = int(prog)
prog_config['progress'] = prog
prog_config['updates'] += 1
format = prog_config['format']
width = prog_config['width']
# Inflate the done and pending bars to stop the progress bar
# jumping around.
if '%c' in format or '%i' in format:
count = format.count('%c') + format.count('%i')
width += (3-len(str(prog))) * count
if '%t' in format or '%o' in format:
count = format.count('%t') + format.count('%o')
width += (3-len(str(100-prog))) * count
done = int(((prog/100.0)*width)+0.5)
pending = width - done
if '%d' in format:
format = format.replace('%d', prog_config['done']*done)
if '%p' in format:
format = format.replace('%p', prog_config['pending']*pending)
if '%c' in format:
format = format.replace('%c', '%d%%' % prog)
if '%i' in format:
format = format.replace('%i', '%d' % prog)
if '%t' in format:
format = format.replace('%t', '%d%%' % (100-prog))
if '%o' in format:
format = format.replace('%o', '%d' % (100-prog))
if '%s' in format:
spinner = prog_config['spinner']
spin = '-' if not spinner else spinner
index = 0 if prog == 100 else prog_config['updates'] % len(spin)
char = '\\\\' if spin[index] == '\\' else spin[index]
format = format.replace('%s', char)
if '%r' in format:
sprites = prog_config['sprites']
sprites = '-' if not sprites else sprites
index = int(((prog/100.0)*len(sprites))+0.5)-1
sprite = '\\\\' if sprites[index] == '\\' else sprites[index]
format = format.replace('%r', sprite)
if 'progress_format' not in config or config['progress_format'] != format:
config['progress_format'] = format
def progress_config(uzbl, args):
'''Parse PROGRESS_CONFIG events from the uzbl instance.
Syntax: event PROGRESS_CONFIG <key> = <value>
'''
split = args.split('=', 1)
if len(split) != 2:
return error("invalid syntax: %r" % args)
key, value = map(unicode.strip, split)
prog_config = get_progress_config(uzbl)
if key not in prog_config:
return error("key error: %r" % args)
if type(prog_config[key]) == type(1):
try:
value = int(value)
except:
return error("invalid type: %r" % args)
elif not value:
value = ' '
prog_config[key] = value
update_progress(uzbl)
def reset_progress(uzbl, args):
'''Reset the spinner counter, reset the progress int and re-draw the
progress bar on LOAD_COMMIT.'''
prog_dict = get_progress_config(uzbl)
prog_dict['updates'] = prog_dict['progress'] = 0
update_progress(uzbl)
def init(uzbl):
# Event handling hooks.
uzbl.connect_dict({
'INSTANCE_EXIT': del_instance,
'INSTANCE_START': add_instance,
'LOAD_COMMIT': reset_progress,
'LOAD_PROGRESS': update_progress,
'PROGRESS_CONFIG': progress_config,
})
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