Mercurial > hg
view mercurial/hgweb/request.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 | 37fcfe52c68c |
children | 482d6f6dba91 |
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# hgweb/request.py - An http request from either CGI or the standalone server. # # Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net> # Copyright 2005, 2006 Matt Mackall <mpm@selenic.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 cgi import errno import socket from .common import ( ErrorResponse, HTTP_NOT_MODIFIED, statusmessage, ) from .. import ( util, ) shortcuts = { 'cl': [('cmd', ['changelog']), ('rev', None)], 'sl': [('cmd', ['shortlog']), ('rev', None)], 'cs': [('cmd', ['changeset']), ('node', None)], 'f': [('cmd', ['file']), ('filenode', None)], 'fl': [('cmd', ['filelog']), ('filenode', None)], 'fd': [('cmd', ['filediff']), ('node', None)], 'fa': [('cmd', ['annotate']), ('filenode', None)], 'mf': [('cmd', ['manifest']), ('manifest', None)], 'ca': [('cmd', ['archive']), ('node', None)], 'tags': [('cmd', ['tags'])], 'tip': [('cmd', ['changeset']), ('node', ['tip'])], 'static': [('cmd', ['static']), ('file', None)] } def normalize(form): # first expand the shortcuts for k in shortcuts.iterkeys(): if k in form: for name, value in shortcuts[k]: if value is None: value = form[k] form[name] = value del form[k] # And strip the values for k, v in form.iteritems(): form[k] = [i.strip() for i in v] return form class wsgirequest(object): """Higher-level API for a WSGI request. WSGI applications are invoked with 2 arguments. They are used to instantiate instances of this class, which provides higher-level APIs for obtaining request parameters, writing HTTP output, etc. """ def __init__(self, wsgienv, start_response): version = wsgienv['wsgi.version'] if (version < (1, 0)) or (version >= (2, 0)): raise RuntimeError("Unknown and unsupported WSGI version %d.%d" % version) self.inp = wsgienv['wsgi.input'] self.err = wsgienv['wsgi.errors'] self.threaded = wsgienv['wsgi.multithread'] self.multiprocess = wsgienv['wsgi.multiprocess'] self.run_once = wsgienv['wsgi.run_once'] self.env = wsgienv self.form = normalize(cgi.parse(self.inp, self.env, keep_blank_values=1)) self._start_response = start_response self.server_write = None self.headers = [] def __iter__(self): return iter([]) def read(self, count=-1): return self.inp.read(count) def drain(self): '''need to read all data from request, httplib is half-duplex''' length = int(self.env.get('CONTENT_LENGTH') or 0) for s in util.filechunkiter(self.inp, limit=length): pass def respond(self, status, type, filename=None, body=None): if self._start_response is not None: self.headers.append(('Content-Type', type)) if filename: filename = (filename.rpartition('/')[-1] .replace('\\', '\\\\').replace('"', '\\"')) self.headers.append(('Content-Disposition', 'inline; filename="%s"' % filename)) if body is not None: self.headers.append(('Content-Length', str(len(body)))) for k, v in self.headers: if not isinstance(v, str): raise TypeError('header value must be string: %r' % (v,)) if isinstance(status, ErrorResponse): self.headers.extend(status.headers) if status.code == HTTP_NOT_MODIFIED: # RFC 2616 Section 10.3.5: 304 Not Modified has cases where # it MUST NOT include any headers other than these and no # body self.headers = [(k, v) for (k, v) in self.headers if k in ('Date', 'ETag', 'Expires', 'Cache-Control', 'Vary')] status = statusmessage(status.code, str(status)) elif status == 200: status = '200 Script output follows' elif isinstance(status, int): status = statusmessage(status) self.server_write = self._start_response(status, self.headers) self._start_response = None self.headers = [] if body is not None: self.write(body) self.server_write = None def write(self, thing): if thing: try: self.server_write(thing) except socket.error as inst: if inst[0] != errno.ECONNRESET: raise def writelines(self, lines): for line in lines: self.write(line) def flush(self): return None def close(self): return None def wsgiapplication(app_maker): '''For compatibility with old CGI scripts. A plain hgweb() or hgwebdir() can and should now be used as a WSGI application.''' application = app_maker() def run_wsgi(env, respond): return application(env, respond) return run_wsgi