Mercurial > hg
view mercurial/progress.py @ 31758:04ec317b8128
hgweb: expose a followlines UI in filerevision view
In filerevision view (/file/<rev>/<fname>) we add some event listeners on
mouse clicks of <span> elements in the <pre class="sourcelines"> block.
Those listeners will capture a range of lines selected between two mouse
clicks and a box inviting to follow the history of selected lines will then
show up. Selected lines (i.e. the block of lines) get a CSS class which make
them highlighted. Selection can be cancelled (and restarted) by either
clicking on the cancel ("x") button in the invite box or clicking on any other
source line. Also clicking twice on the same line will abort the selection and
reset event listeners to restart the process.
As a first step, this action is only advertised by the "cursor: cell" CSS rule
on source lines elements as any other mechanisms would make the code
significantly more complicated. This might be improved later.
All JavaScript code lives in a new "linerangelog.js" file, sourced in
filerevision template (only in "paper" style for now).
author | Denis Laxalde <denis.laxalde@logilab.fr> |
---|---|
date | Wed, 29 Mar 2017 22:26:16 +0200 |
parents | cb1ea3cc44b5 |
children | c3ef33fd0058 |
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# progress.py progress bars related code # # Copyright (C) 2010 Augie Fackler <durin42@gmail.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import import threading import time from .i18n import _ from . import encoding def spacejoin(*args): return ' '.join(s for s in args if s) def shouldprint(ui): return not (ui.quiet or ui.plain('progress')) and ( ui._isatty(ui.ferr) or ui.configbool('progress', 'assume-tty')) def fmtremaining(seconds): """format a number of remaining seconds in human readable way This will properly display seconds, minutes, hours, days if needed""" if seconds < 60: # i18n: format XX seconds as "XXs" return _("%02ds") % (seconds) minutes = seconds // 60 if minutes < 60: seconds -= minutes * 60 # i18n: format X minutes and YY seconds as "XmYYs" return _("%dm%02ds") % (minutes, seconds) # we're going to ignore seconds in this case minutes += 1 hours = minutes // 60 minutes -= hours * 60 if hours < 30: # i18n: format X hours and YY minutes as "XhYYm" return _("%dh%02dm") % (hours, minutes) # we're going to ignore minutes in this case hours += 1 days = hours // 24 hours -= days * 24 if days < 15: # i18n: format X days and YY hours as "XdYYh" return _("%dd%02dh") % (days, hours) # we're going to ignore hours in this case days += 1 weeks = days // 7 days -= weeks * 7 if weeks < 55: # i18n: format X weeks and YY days as "XwYYd" return _("%dw%02dd") % (weeks, days) # we're going to ignore days and treat a year as 52 weeks weeks += 1 years = weeks // 52 weeks -= years * 52 # i18n: format X years and YY weeks as "XyYYw" return _("%dy%02dw") % (years, weeks) class progbar(object): def __init__(self, ui): self.ui = ui self._refreshlock = threading.Lock() self.resetstate() def resetstate(self): self.topics = [] self.topicstates = {} self.starttimes = {} self.startvals = {} self.printed = False self.lastprint = time.time() + float(self.ui.config( 'progress', 'delay', default=3)) self.curtopic = None self.lasttopic = None self.indetcount = 0 self.refresh = float(self.ui.config( 'progress', 'refresh', default=0.1)) self.changedelay = max(3 * self.refresh, float(self.ui.config( 'progress', 'changedelay', default=1))) self.order = self.ui.configlist( 'progress', 'format', default=['topic', 'bar', 'number', 'estimate']) def show(self, now, topic, pos, item, unit, total): if not shouldprint(self.ui): return termwidth = self.width() self.printed = True head = '' needprogress = False tail = '' for indicator in self.order: add = '' if indicator == 'topic': add = topic elif indicator == 'number': if total: add = ('% ' + str(len(str(total))) + 's/%s') % (pos, total) else: add = str(pos) elif indicator.startswith('item') and item: slice = 'end' if '-' in indicator: wid = int(indicator.split('-')[1]) elif '+' in indicator: slice = 'beginning' wid = int(indicator.split('+')[1]) else: wid = 20 if slice == 'end': add = encoding.trim(item, wid, leftside=True) else: add = encoding.trim(item, wid) add += (wid - encoding.colwidth(add)) * ' ' elif indicator == 'bar': add = '' needprogress = True elif indicator == 'unit' and unit: add = unit elif indicator == 'estimate': add = self.estimate(topic, pos, total, now) elif indicator == 'speed': add = self.speed(topic, pos, unit, now) if not needprogress: head = spacejoin(head, add) else: tail = spacejoin(tail, add) if needprogress: used = 0 if head: used += encoding.colwidth(head) + 1 if tail: used += encoding.colwidth(tail) + 1 progwidth = termwidth - used - 3 if total and pos <= total: amt = pos * progwidth // total bar = '=' * (amt - 1) if amt > 0: bar += '>' bar += ' ' * (progwidth - amt) else: progwidth -= 3 self.indetcount += 1 # mod the count by twice the width so we can make the # cursor bounce between the right and left sides amt = self.indetcount % (2 * progwidth) amt -= progwidth bar = (' ' * int(progwidth - abs(amt)) + '<=>' + ' ' * int(abs(amt))) prog = ''.join(('[', bar , ']')) out = spacejoin(head, prog, tail) else: out = spacejoin(head, tail) self.ui.ferr.write('\r' + encoding.trim(out, termwidth)) self.lasttopic = topic self.ui.ferr.flush() def clear(self): if not self.printed or not self.lastprint or not shouldprint(self.ui): return self.ui.ferr.write('\r%s\r' % (' ' * self.width())) if self.printed: # force immediate re-paint of progress bar self.lastprint = 0 def complete(self): if not shouldprint(self.ui): return if self.ui.configbool('progress', 'clear-complete', default=True): self.clear() else: self.ui.ferr.write('\n') self.ui.ferr.flush() def width(self): tw = self.ui.termwidth() return min(int(self.ui.config('progress', 'width', default=tw)), tw) def estimate(self, topic, pos, total, now): if total is None: return '' initialpos = self.startvals[topic] target = total - initialpos delta = pos - initialpos if delta > 0: elapsed = now - self.starttimes[topic] # experimental config: progress.estimate if elapsed > float( self.ui.config('progress', 'estimate', default=2)): seconds = (elapsed * (target - delta)) // delta + 1 return fmtremaining(seconds) return '' def speed(self, topic, pos, unit, now): initialpos = self.startvals[topic] delta = pos - initialpos elapsed = now - self.starttimes[topic] if elapsed > float( self.ui.config('progress', 'estimate', default=2)): return _('%d %s/sec') % (delta / elapsed, unit) return '' def _oktoprint(self, now): '''Check if conditions are met to print - e.g. changedelay elapsed''' if (self.lasttopic is None # first time we printed # not a topic change or self.curtopic == self.lasttopic # it's been long enough we should print anyway or now - self.lastprint >= self.changedelay): return True else: return False def progress(self, topic, pos, item='', unit='', total=None): now = time.time() self._refreshlock.acquire() try: if pos is None: self.starttimes.pop(topic, None) self.startvals.pop(topic, None) self.topicstates.pop(topic, None) # reset the progress bar if this is the outermost topic if self.topics and self.topics[0] == topic and self.printed: self.complete() self.resetstate() # truncate the list of topics assuming all topics within # this one are also closed if topic in self.topics: self.topics = self.topics[:self.topics.index(topic)] # reset the last topic to the one we just unwound to, # so that higher-level topics will be stickier than # lower-level topics if self.topics: self.lasttopic = self.topics[-1] else: self.lasttopic = None else: if topic not in self.topics: self.starttimes[topic] = now self.startvals[topic] = pos self.topics.append(topic) self.topicstates[topic] = pos, item, unit, total self.curtopic = topic if now - self.lastprint >= self.refresh and self.topics: if self._oktoprint(now): self.lastprint = now self.show(now, topic, *self.topicstates[topic]) finally: self._refreshlock.release()