1005 lines
35 KiB
Python
1005 lines
35 KiB
Python
# Copyright (C) 2005 Gustavo J. A. M. Carneiro
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# Copyright (C) 2006 Santiago Gala
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# Copyright (C) 2006-2007 Jean-Marie Traissard <jim AT lapin.org>
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# Copyright (C) 2006-2014 Yann Leboulanger <asterix AT lagaule.org>
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# Copyright (C) 2007 Nikos Kouremenos <kourem AT gmail.com>
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# Copyright (C) 2008 Jonathan Schleifer <js-gajim AT webkeks.org>
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# Julien Pivotto <roidelapluie AT gmail.com>
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# Stephan Erb <steve-e AT h3c.de>
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#
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# This file is part of Gajim.
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#
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# Gajim is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published
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# by the Free Software Foundation; version 3 only.
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#
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# Gajim is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Gajim. If not, see <http://www.gnu.org/licenses/>.
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"""
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A Gtk.TextView-based renderer for XHTML-IM, as described in:
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http://xmpp.org/extensions/xep-0071.html
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Starting with the version posted by Gustavo Carneiro,
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I (Santiago Gala) am trying to make it more compatible
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with the markup that docutils generate, and also more
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modular.
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"""
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import re
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import logging
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import urllib
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import xml.sax
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import xml.sax.handler
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from io import StringIO
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from gi.repository import GObject
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from gi.repository import Pango
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from gi.repository import Gtk
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from gi.repository import Gdk
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from gi.repository import GdkPixbuf
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from gi.repository import GLib
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from gajim.common import app
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from gajim.common import helpers
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from gajim.common.i18n import _
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from gajim.common.const import StyleAttr
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from gajim.gtk.util import load_icon
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from gajim.gtk.util import get_cursor
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from gajim.gui_menu_builder import get_conv_context_menu
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log = logging.getLogger('gajim.htmlview')
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whitespace_rx = re.compile('\\s+')
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allwhitespace_rx = re.compile('^\\s*$')
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# embryo of CSS classes
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classes = {
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#'system-message':';display: none',
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'problematic': ';color: red',
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}
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# styles for elements
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_element_styles = {
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'u' : ';text-decoration: underline',
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'em' : ';font-style: oblique',
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'cite' : '; background-color:rgb(170,190,250);'
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'font-style: oblique',
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'li' : '; margin-left: 1em; margin-right: 10%',
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'strong' : ';font-weight: bold',
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'pre' : '; background-color:rgb(190,190,190);'
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'font-family: monospace; white-space: pre;'
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'margin-left: 1em; margin-right: 10%',
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'kbd' : ';background-color:rgb(210,210,210);'
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'font-family: monospace',
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'blockquote' : '; background-color:rgb(170,190,250);'
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'margin-left: 2em; margin-right: 10%',
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'dt' : ';font-weight: bold; font-style: oblique',
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'dd' : ';margin-left: 2em; font-style: oblique'
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}
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# no difference for the moment
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_element_styles['dfn'] = _element_styles['em']
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_element_styles['var'] = _element_styles['em']
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# deprecated, legacy, presentational
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_element_styles['tt'] = _element_styles['kbd']
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_element_styles['i'] = _element_styles['em']
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_element_styles['b'] = _element_styles['strong']
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_supported_style_attrs = [
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'background-color', 'color', 'font-family', 'font-size', 'font-style',
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'font-weight', 'margin-left', 'margin-right', 'text-align',
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'text-decoration', 'white-space', 'display', 'width', 'height'
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]
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# ==========
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# XEP-0071
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# ==========
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#
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# This Integration Set includes a subset of the modules defined for
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# XHTML 1.0 but does not redefine any existing modules, nor
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# does it define any new modules. Specifically, it includes the
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# following modules only:
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#
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# - Structure
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# - Text
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#
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# * Block
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#
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# phrasal
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# addr, blockquote, pre
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# Struc
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# div,p
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# Heading
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# h1, h2, h3, h4, h5, h6
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#
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# * Inline
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#
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# phrasal
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# abbr, acronym, cite, code, dfn, em, kbd, q, samp, strong, var
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# structural
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# br, span
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#
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# - Hypertext (a)
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# - List (ul, ol, dl)
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# - Image (img)
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# - Style Attribute
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#
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# Therefore XHTML-IM uses the following content models:
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#
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# Block.mix
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# Block-like elements, e.g., paragraphs
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# Flow.mix
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# Any block or inline elements
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# Inline.mix
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# Character-level elements
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# InlineNoAnchor.class
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# Anchor element
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# InlinePre.mix
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# Pre element
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#
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# XHTML-IM also uses the following Attribute Groups:
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#
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# Core.extra.attrib
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# TBD
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# I18n.extra.attrib
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# TBD
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# Common.extra
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# style
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#
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#
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# ...
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# block level:
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# Heading h
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# ( pres = h1 | h2 | h3 | h4 | h5 | h6 )
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# Block ( phrasal = address | blockquote | pre )
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# NOT ( presentational = hr )
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# ( structural = div | p )
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# other: section
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# Inline ( phrasal = abbr | acronym | cite | code | dfn | em |
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# kbd | q | samp | strong | var )
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# NOT ( presentational = b | big | i | small | sub | sup | tt )
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# ( structural = br | span )
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# Param/Legacy param, font, basefont, center, s, strike, u, dir, menu,
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# isindex
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BLOCK_HEAD = set(('h1', 'h2', 'h3', 'h4', 'h5', 'h6',))
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BLOCK_PHRASAL = set(('address', 'blockquote', 'pre',))
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BLOCK_PRES = set(('hr', )) #not in xhtml-im
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BLOCK_STRUCT = set(('div', 'p', ))
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BLOCK_HACKS = set(('table', 'tr')) # at the very least, they will start line ;)
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BLOCK = BLOCK_HEAD.union(BLOCK_PHRASAL).union(BLOCK_STRUCT).union(BLOCK_PRES).union(BLOCK_HACKS)
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INLINE_PHRASAL = set('abbr, acronym, cite, code, dfn, em, kbd, q, samp, strong, var'.split(', '))
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INLINE_PRES = set('b, i, u, tt'.split(', ')) #not in xhtml-im
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INLINE_STRUCT = set('br, span'.split(', '))
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INLINE = INLINE_PHRASAL.union(INLINE_PRES).union(INLINE_STRUCT)
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LIST_ELEMS = set('dl, ol, ul'.split(', '))
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for _name in BLOCK_HEAD:
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_num = int(_name[1])
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_header_size = (_num - 1) // 2
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_weight = (_num - 1) % 2
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_element_styles[_name] = '; font-size: %s; %s' % (
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('large', 'medium', 'small')[_header_size],
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('font-weight: bold', 'font-style: oblique')[_weight])
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def _parse_css_color(color):
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if color.startswith('rgb(') and color.endswith(')'):
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red, green, blue = [int(c)*257 for c in color[4:-1].split(',')]
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return Gdk.Color(red, green, blue)
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return Gdk.color_parse(color)
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def style_iter(style):
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return ([x.strip() for x in item.split(':', 1)] for item in style.split(';')\
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if len(item.strip()))
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class HtmlHandler(xml.sax.handler.ContentHandler):
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"""
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A handler to display html to a gtk textview
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It keeps a stack of "style spans" (start/end element pairs) and a stack of
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list counters, for nested lists.
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"""
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def __init__(self, textview, conv_textview, startiter):
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xml.sax.handler.ContentHandler.__init__(self)
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self.textbuf = textview.get_buffer()
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self.textview = textview
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self.iter = startiter
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self.conv_textview = conv_textview
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self.text = ''
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self.starting = True
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self.preserve = False
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self.styles = [] # a Gtk.TextTag or None, for each span level
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self.list_counters = [] # stack (top at head) of list
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# counters, or None for unordered list
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# build a dictionary mapping styles to methods
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self.__style_methods = {}
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for style in _supported_style_attrs:
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method_names = '_parse_style_%s' % style.replace('-', '_')
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self.__style_methods[style] = method_names
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def _get_points_from_pixels(self, pixels):
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resolution = self.textview.get_screen().get_resolution()
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# points = pixels * 72 / resolution
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return pixels * 72 / resolution
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@staticmethod
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def _parse_style_color(tag, value):
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color = _parse_css_color(value)
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tag.set_property('foreground-gdk', color)
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@staticmethod
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def _parse_style_background_color(tag, value):
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color = _parse_css_color(value)
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tag.set_property('background-gdk', color)
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tag.set_property('paragraph-background-gdk', color)
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@staticmethod
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def __parse_length_frac_size_allocate(_textview, allocation, frac,
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callback, args):
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callback(allocation.width*frac, *args)
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def _parse_length(self, value, font_relative, block_relative, minl, maxl,
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callback, *args):
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"""
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Parse/calc length, converting to pixels, calls callback(length, *args)
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when the length is first computed or changes
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"""
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if value.endswith('%'):
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val = float(value[:-1])
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if val > 0:
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sign = 1
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elif val < 0:
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sign = -1
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else:
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sign = 0
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# limits: 1% to 500%
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val = sign*max(1, min(abs(val), 500))
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frac = val/100
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if font_relative:
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callback(frac, '%', *args)
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elif block_relative:
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# CSS says 'Percentage values: refer to width of the closest
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# block-level ancestor'
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# This is difficult/impossible to implement, so we use
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# textview width instead; a reasonable approximation..
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alloc = self.textview.get_allocation()
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self.__parse_length_frac_size_allocate(
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self.textview, alloc, frac, callback, args)
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self.textview.connect('size-allocate',
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self.__parse_length_frac_size_allocate,
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frac, callback, args)
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else:
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callback(frac, *args)
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return
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def get_val(min_val=minl, max_val=maxl):
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try:
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val = float(value[:-2])
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except Exception:
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log.warning('Unable to parse length value "%s"', value)
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return None
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if val > 0:
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sign = 1
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elif val < 0:
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sign = -1
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else:
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sign = 0
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# validate length
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return sign*max(min_val, min(abs(val), max_val))
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if value.endswith('pt'): # points
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size = get_val(5, 50)
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if size is None:
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return
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callback(size, 'pt', *args)
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elif value.endswith('em'):
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size = get_val(0.3, 4)
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if size is None:
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return
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callback(size, 'em', *args)
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elif value.endswith('px'): # pixels
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size = get_val(5, 50)
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if size is None:
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return
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callback(size, 'px', *args)
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else:
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try:
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# TODO: isn't "no units" interpreted as pixels?
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val = int(value)
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if val > 0:
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sign = 1
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elif val < 0:
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sign = -1
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else:
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sign = 0
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# validate length
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val = sign*max(5, min(abs(val), 70))
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callback(val, 'px', *args)
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except Exception:
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log.warning('Unable to parse length value "%s"', value)
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def __parse_font_size_cb(self, size, type_, tag):
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if type_ in ('em', '%'):
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tag.set_property('scale', size)
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elif type_ == 'pt':
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tag.set_property('size-points', size)
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elif type_ == 'px':
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tag.set_property('size-points', self._get_points_from_pixels(size))
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@staticmethod
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def _parse_style_display(tag, value):
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if value == 'none':
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tag.set_property('invisible', 'true')
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# FIXME: display: block, inline
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def _parse_style_font_size(self, tag, value):
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try:
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scale = {
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'xx-small': 0.5787037037037,
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'x-small': 0.6444444444444,
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'small': 0.8333333333333,
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'medium': 1.0,
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'large': 1.2,
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'x-large': 1.4399999999999,
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'xx-large': 1.728,
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}[value]
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except KeyError:
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pass
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else:
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tag.set_property('scale', scale)
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return
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if value == 'smaller':
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tag.set_property('scale', 0.8333333333333)
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return
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if value == 'larger':
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tag.set_property('scale', 1.2)
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return
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# font relative (5 ~ 4pt, 110 ~ 72pt)
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self._parse_length(
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value, True, False, 5, 110, self.__parse_font_size_cb, tag)
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@staticmethod
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def _parse_style_font_style(tag, value):
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try:
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style = {
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'normal': Pango.Style.NORMAL,
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'italic': Pango.Style.ITALIC,
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'oblique': Pango.Style.OBLIQUE,
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}[value]
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except KeyError:
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log.warning('unknown font-style %s', value)
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else:
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tag.set_property('style', style)
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def __frac_length_tag_cb(self, length, tag, propname):
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styles = self._get_style_tags()
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if styles:
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length += styles[-1].get_property(propname)
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tag.set_property(propname, length)
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def _parse_style_margin_left(self, tag, value):
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# block relative
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self._parse_length(value, False, True, 1, 1000,
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self.__frac_length_tag_cb, tag, 'left-margin')
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def _parse_style_margin_right(self, tag, value):
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# block relative
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self._parse_length(value, False, True, 1, 1000,
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self.__frac_length_tag_cb, tag, 'right-margin')
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@staticmethod
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def _parse_style_font_weight(tag, value):
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# TODO: missing 'bolder' and 'lighter'
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try:
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weight = {
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'100': Pango.Weight.ULTRALIGHT,
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'200': Pango.Weight.ULTRALIGHT,
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'300': Pango.Weight.LIGHT,
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'400': Pango.Weight.NORMAL,
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'500': Pango.Weight.NORMAL,
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'600': Pango.Weight.BOLD,
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'700': Pango.Weight.BOLD,
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'800': Pango.Weight.ULTRABOLD,
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'900': Pango.Weight.HEAVY,
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'normal': Pango.Weight.NORMAL,
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'bold': Pango.Weight.BOLD,
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}[value]
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except KeyError:
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log.warning('unknown font-style %s', value)
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else:
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tag.set_property('weight', weight)
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@staticmethod
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def _parse_style_font_family(tag, value):
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tag.set_property('family', value)
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@staticmethod
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def _parse_style_text_align(tag, value):
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try:
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align = {
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'left': Gtk.Justification.LEFT,
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'right': Gtk.Justification.RIGHT,
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'center': Gtk.Justification.CENTER,
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'justify': Gtk.Justification.FILL,
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}[value]
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except KeyError:
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log.warning('Invalid text-align: %s requested', value)
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else:
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tag.set_property('justification', align)
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@staticmethod
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def _parse_style_text_decoration(tag, value):
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values = value.split(' ')
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if 'none' in values:
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tag.set_property('underline', Pango.Underline.NONE)
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tag.set_property('strikethrough', False)
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if 'underline' in values:
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tag.set_property('underline', Pango.Underline.SINGLE)
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else:
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tag.set_property('underline', Pango.Underline.NONE)
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if 'line-through' in values:
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tag.set_property('strikethrough', True)
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else:
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tag.set_property('strikethrough', False)
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if 'blink' in values:
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log.warning('text-decoration:blink not implemented')
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if 'overline' in values:
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log.warning('text-decoration:overline not implemented')
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@staticmethod
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def _parse_style_white_space(tag, value):
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if value == 'pre':
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tag.set_property('wrap_mode', Gtk.WrapMode.NONE)
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elif value == 'normal':
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tag.set_property('wrap_mode', Gtk.WrapMode.WORD)
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elif value == 'nowrap':
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tag.set_property('wrap_mode', Gtk.WrapMode.NONE)
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@staticmethod
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def __length_tag_cb(value, tag, propname):
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try:
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tag.set_property(propname, value)
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except Exception:
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log.warning('Error with prop: %s for tag: %s', propname, str(tag))
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def _parse_style_width(self, tag, value):
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if value == 'auto':
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return
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self._parse_length(value, False, False, 1, 1000,
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self.__length_tag_cb, tag, "width")
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def _parse_style_height(self, tag, value):
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if value == 'auto':
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return
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self._parse_length(value, False, False, 1, 1000,
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self.__length_tag_cb, tag, "height")
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def _get_style_tags(self):
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return [tag for tag in self.styles if tag is not None]
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def _create_url(self, href, title, type_, id_):
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'''Process a url tag.
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'''
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tag = self.textbuf.create_tag(id_)
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|
if href and href[0] != '#':
|
|
tag.href = href
|
|
tag.type_ = type_ # to be used by the URL handler
|
|
tag.connect('event', self.textview.hyperlink_handler, 'url')
|
|
tag.set_property('foreground', app.css_config.get_value('.gajim-url', StyleAttr.COLOR))
|
|
tag.set_property('underline', Pango.Underline.SINGLE)
|
|
tag.is_anchor = True
|
|
if title:
|
|
tag.title = title
|
|
return tag
|
|
|
|
def _update_img(self, output, attrs, img_mark, tags):
|
|
'''Callback function called after the function helpers.download_image.
|
|
'''
|
|
mem, alt = output
|
|
self._process_img(attrs, (mem, alt, img_mark, tags))
|
|
|
|
def _process_img(self, attrs, loaded=None):
|
|
'''Process a img tag.
|
|
'''
|
|
mem = ''
|
|
pixbuf = None
|
|
replace_mark = None
|
|
replace_tags = None
|
|
|
|
try:
|
|
if attrs['src'].startswith('data:image/'):
|
|
# The "data" URL scheme http://tools.ietf.org/html/rfc2397
|
|
import base64
|
|
img = attrs['src'].split(',')[1]
|
|
mem = base64.standard_b64decode(urllib.parse.unquote(
|
|
img).encode('utf-8'))
|
|
elif loaded is not None:
|
|
(mem, alt, replace_mark, replace_tags) = loaded
|
|
else:
|
|
if self.conv_textview:
|
|
img_mark = self.textbuf.create_mark(None, self.iter, True)
|
|
app.thread_interface(
|
|
helpers.download_image,
|
|
[self.conv_textview.account, attrs],
|
|
self._update_img,
|
|
[attrs, img_mark, self._get_style_tags()])
|
|
alt = attrs.get('alt', '')
|
|
if alt:
|
|
alt += '\n'
|
|
alt += _('Loading')
|
|
pixbuf = load_icon('image-missing', self.textview, pixbuf=True)
|
|
if mem:
|
|
# Caveat: GdkPixbuf is known not to be safe to load
|
|
# images from network... this program is now potentially
|
|
# hackable ;)
|
|
loader = GdkPixbuf.PixbufLoader()
|
|
dims = [0, 0]
|
|
def height_cb(length):
|
|
dims[1] = length
|
|
def width_cb(length):
|
|
dims[0] = length
|
|
# process width and height attributes
|
|
width = attrs.get('width')
|
|
height = attrs.get('height')
|
|
# override with width and height styles
|
|
for attr, val in style_iter(attrs.get('style', '')):
|
|
if attr == 'width':
|
|
width = val
|
|
elif attr == 'height':
|
|
height = val
|
|
if width:
|
|
self._parse_length(width, False, False, 1, 1000, width_cb)
|
|
if height:
|
|
self._parse_length(height, False, False, 1, 1000, height_cb)
|
|
|
|
def set_size(_pixbuf, width_, height_, dims):
|
|
"""
|
|
FIXME: Floats should be relative to the whole textview, and
|
|
resize with it. This needs new pifbufs for every resize,
|
|
GdkPixbuf.Pixbuf.scale_simple or similar.
|
|
"""
|
|
if isinstance(dims[0], float):
|
|
dims[0] = int(dims[0] * width_)
|
|
elif not dims[0]:
|
|
dims[0] = width_
|
|
if isinstance(dims[1], float):
|
|
dims[1] = int(dims[1] * height_)
|
|
if not dims[1]:
|
|
dims[1] = height_
|
|
loader.set_size(*dims)
|
|
|
|
if width or height:
|
|
loader.connect('size-prepared', set_size, dims)
|
|
loader.write(mem)
|
|
loader.close()
|
|
pixbuf = loader.get_pixbuf()
|
|
alt = attrs.get('alt', '')
|
|
working_iter = self.iter
|
|
if replace_mark is not None:
|
|
working_iter = self.textbuf.get_iter_at_mark(replace_mark)
|
|
next_iter = working_iter.copy()
|
|
next_iter.forward_char()
|
|
self.textbuf.delete(working_iter, next_iter)
|
|
self.textbuf.delete_mark(replace_mark)
|
|
if pixbuf is not None:
|
|
if replace_mark:
|
|
tags = replace_tags
|
|
else:
|
|
tags = self._get_style_tags()
|
|
if tags:
|
|
tmpmark = self.textbuf.create_mark(None, working_iter, True)
|
|
self.textbuf.insert_pixbuf(working_iter, pixbuf)
|
|
self.starting = False
|
|
if tags:
|
|
start = self.textbuf.get_iter_at_mark(tmpmark)
|
|
for tag in tags:
|
|
self.textbuf.apply_tag(tag, start, working_iter)
|
|
self.textbuf.delete_mark(tmpmark)
|
|
else:
|
|
self._insert_text('[IMG: %s]' % alt, working_iter)
|
|
except Exception as ex:
|
|
log.error('Error loading image %s', str(ex))
|
|
pixbuf = None
|
|
alt = attrs.get('alt', 'Broken image')
|
|
try:
|
|
loader.close()
|
|
except Exception:
|
|
pass
|
|
return pixbuf
|
|
|
|
def _begin_span(self, style, tag=None, id_=None):
|
|
if style is None:
|
|
self.styles.append(tag)
|
|
return None
|
|
if tag is None:
|
|
if id_:
|
|
tag = self.textbuf.create_tag(id_)
|
|
else:
|
|
tag = self.textbuf.create_tag() # we create anonymous tag
|
|
for attr, val in style_iter(style):
|
|
attr = attr.lower()
|
|
val = val
|
|
try:
|
|
getattr(self, self.__style_methods[attr])(tag, val)
|
|
except KeyError:
|
|
log.warning('Style attribute "%s" requested '
|
|
'but not yet implemented', attr)
|
|
self.styles.append(tag)
|
|
|
|
def _end_span(self):
|
|
self.styles.pop()
|
|
|
|
def _jump_line(self):
|
|
self.textbuf.insert_with_tags_by_name(self.iter, '\n', 'eol')
|
|
self.starting = True
|
|
|
|
def _insert_text(self, text, working_iter=None):
|
|
if working_iter is None:
|
|
working_iter = self.iter
|
|
if self.starting and text != '\n':
|
|
self.starting = (text[-1] == '\n')
|
|
tags = self._get_style_tags()
|
|
if tags:
|
|
self.textbuf.insert_with_tags(working_iter, text, *tags)
|
|
else:
|
|
self.textbuf.insert(working_iter, text)
|
|
|
|
def _starts_line(self):
|
|
return self.starting or self.iter.starts_line()
|
|
|
|
def _flush_text(self):
|
|
if not self.text:
|
|
return
|
|
text, self.text = self.text, ''
|
|
if not self.preserve:
|
|
text = text.replace('\n', ' ')
|
|
self.handle_specials(whitespace_rx.sub(' ', text))
|
|
else:
|
|
self._insert_text(text.strip('\n'))
|
|
|
|
def _anchor_event(self, _tag, _textview, event, _iter, href, type_):
|
|
if event.type == Gdk.EventType.BUTTON_PRESS:
|
|
self.textview.emit('url-clicked', href, type_)
|
|
return True
|
|
return False
|
|
|
|
def handle_specials(self, text):
|
|
if self.conv_textview:
|
|
self.iter = self.conv_textview.detect_and_print_special_text(
|
|
text, self._get_style_tags(), iter_=self.iter)
|
|
else:
|
|
self._insert_text(text)
|
|
|
|
def characters(self, content):
|
|
if self.preserve:
|
|
self.text += content
|
|
return
|
|
if allwhitespace_rx.match(content) is not None and self._starts_line():
|
|
return
|
|
self.text += content
|
|
self.starting = False
|
|
|
|
def startElement(self, name, attrs):
|
|
self._flush_text()
|
|
klass = [i for i in attrs.get('class', ' ').split(' ') if i]
|
|
style = ''
|
|
#Add styles defined for classes
|
|
for k in klass:
|
|
if k in classes:
|
|
style += classes[k]
|
|
|
|
tag = None
|
|
#FIXME: if we want to use id, it needs to be unique across
|
|
# the whole textview, so we need to add something like the
|
|
# message-id to it.
|
|
#id_ = attrs.get('id',None)
|
|
id_ = None
|
|
if name == 'a':
|
|
#TODO: accesskey, charset, hreflang, rel, rev, tabindex, type
|
|
href = attrs.get('href', None)
|
|
if not href:
|
|
href = attrs.get('HREF', None)
|
|
# Gaim sends HREF instead of href
|
|
title = attrs.get('title', attrs.get('rel', href))
|
|
type_ = attrs.get('type', None)
|
|
tag = self._create_url(href, title, type_, id_)
|
|
elif name == 'blockquote':
|
|
cite = attrs.get('cite', None)
|
|
if cite:
|
|
tag = self.textbuf.create_tag(id_)
|
|
tag.title = attrs.get('title', None)
|
|
tag.is_anchor = True
|
|
elif name in LIST_ELEMS:
|
|
style += ';margin-left: 2em'
|
|
elif name == 'img':
|
|
tag = self._process_img(attrs)
|
|
if name in _element_styles:
|
|
style += _element_styles[name]
|
|
# so that explicit styles override implicit ones,
|
|
# we add the attribute last
|
|
style += ";"+attrs.get('style', '')
|
|
if style == '':
|
|
style = None
|
|
self._begin_span(style, tag, id_)
|
|
|
|
if name == 'br':
|
|
pass # handled in endElement
|
|
elif name == 'hr':
|
|
pass # handled in endElement
|
|
elif name in BLOCK:
|
|
if not self._starts_line():
|
|
self._jump_line()
|
|
if name == 'pre':
|
|
self.preserve = True
|
|
elif name == 'span':
|
|
pass
|
|
elif name in ('dl', 'ul'):
|
|
if not self._starts_line():
|
|
self._jump_line()
|
|
self.list_counters.append(None)
|
|
elif name == 'ol':
|
|
if not self._starts_line():
|
|
self._jump_line()
|
|
self.list_counters.append(0)
|
|
elif name == 'li':
|
|
if self.list_counters[-1] is None:
|
|
li_head = chr(0x2022)
|
|
else:
|
|
self.list_counters[-1] += 1
|
|
li_head = '%i.' % self.list_counters[-1]
|
|
self.text = ' '*len(self.list_counters)*4 + li_head + ' '
|
|
self._flush_text()
|
|
self.starting = True
|
|
elif name == 'dd':
|
|
self._jump_line()
|
|
elif name == 'dt':
|
|
if not self.starting:
|
|
self._jump_line()
|
|
elif name in ('a', 'img', 'body', 'html'):
|
|
pass
|
|
elif name in INLINE:
|
|
pass
|
|
else:
|
|
log.warning('Unhandled element "%s"', name)
|
|
|
|
def endElement(self, name):
|
|
end_preserving = False
|
|
newline = False
|
|
if name == 'br':
|
|
newline = True
|
|
elif name == 'hr':
|
|
#FIXME: plenty of unused attributes (width, height,...) :)
|
|
self._jump_line()
|
|
self._insert_text('\u2015'*40)
|
|
self._jump_line()
|
|
elif name in LIST_ELEMS:
|
|
self.list_counters.pop()
|
|
elif name == 'li':
|
|
newline = True
|
|
elif name == 'img':
|
|
pass
|
|
elif name in ('body', 'html'):
|
|
pass
|
|
elif name == 'a':
|
|
pass
|
|
elif name in INLINE:
|
|
pass
|
|
elif name in ('dd', 'dt', ):
|
|
pass
|
|
elif name in BLOCK:
|
|
if name == 'pre':
|
|
end_preserving = True
|
|
elif name in BLOCK_STRUCT:
|
|
newline = True
|
|
else:
|
|
log.warning("Unhandled element '%s'", name)
|
|
self._flush_text()
|
|
if end_preserving:
|
|
self.preserve = False
|
|
if newline:
|
|
self._jump_line()
|
|
self._end_span()
|
|
|
|
|
|
class HtmlTextView(Gtk.TextView):
|
|
|
|
_tags = ['url', 'mail', 'xmpp', 'sth_at_sth']
|
|
|
|
def __init__(self, account, standalone=False):
|
|
Gtk.TextView.__init__(self)
|
|
self.set_wrap_mode(Gtk.WrapMode.CHAR)
|
|
self.set_editable(False)
|
|
self.set_has_tooltip(True)
|
|
self.connect('copy-clipboard', self._on_copy_clipboard)
|
|
self.get_buffer().eol_tag = self.get_buffer().create_tag('eol')
|
|
|
|
self.account = account
|
|
self.plugin_modified = False
|
|
self._cursor_changed = False
|
|
|
|
if standalone:
|
|
self.connect('query-tooltip', self._query_tooltip)
|
|
self.create_tags()
|
|
|
|
def create_tags(self):
|
|
color = app.css_config.get_value('.gajim-url', StyleAttr.COLOR)
|
|
|
|
attrs = {'foreground': color,
|
|
'underline': Pango.Underline.SINGLE}
|
|
|
|
for tag in self._tags:
|
|
tag_ = self.get_buffer().create_tag(tag, **attrs)
|
|
tag_.connect('event', self.hyperlink_handler, tag)
|
|
|
|
def update_tags(self):
|
|
tag_table = self.get_buffer().get_tag_table()
|
|
color = app.css_config.get_value('.gajim-url', StyleAttr.COLOR)
|
|
|
|
for tag in self._tags:
|
|
tag_table.lookup(tag).set_property('foreground', color)
|
|
|
|
def _query_tooltip(self, widget, x_pos, y_pos, _keyboard_mode, tooltip):
|
|
window = widget.get_window(Gtk.TextWindowType.TEXT)
|
|
x_pos, y_pos = self.window_to_buffer_coords(
|
|
Gtk.TextWindowType.TEXT, x_pos, y_pos)
|
|
iter_ = self.get_iter_at_position(x_pos, y_pos)[1]
|
|
|
|
for tag in iter_.get_tags():
|
|
if getattr(tag, 'is_anchor', False):
|
|
text = getattr(tag, 'title', False)
|
|
if text:
|
|
if len(text) > 50:
|
|
text = text[:47] + '…'
|
|
tooltip.set_text(text)
|
|
window.set_cursor(get_cursor('HAND2'))
|
|
self._cursor_changed = True
|
|
return True
|
|
|
|
tag_name = tag.get_property('name')
|
|
if tag_name in ('url', 'mail', 'xmpp', 'sth_at_sth'):
|
|
window.set_cursor(get_cursor('HAND2'))
|
|
self._cursor_changed = True
|
|
return False
|
|
|
|
if self._cursor_changed:
|
|
window.set_cursor(get_cursor('XTERM'))
|
|
self._cursor_changed = False
|
|
return False
|
|
|
|
def show_context_menu(self, _event, kind, text):
|
|
menu = get_conv_context_menu(self.account, kind, text)
|
|
if menu is None:
|
|
return
|
|
|
|
def destroy(menu, _pspec):
|
|
visible = menu.get_property('visible')
|
|
if not visible:
|
|
GLib.idle_add(menu.destroy)
|
|
|
|
menu.attach_to_widget(self, None)
|
|
menu.connect('notify::visible', destroy)
|
|
menu.popup_at_pointer()
|
|
|
|
def hyperlink_handler(self, texttag, _widget, event, iter_, kind):
|
|
if event.type == Gdk.EventType.BUTTON_PRESS:
|
|
begin_iter = iter_.copy()
|
|
# we get the beginning of the tag
|
|
while not begin_iter.starts_tag(texttag):
|
|
begin_iter.backward_char()
|
|
end_iter = iter_.copy()
|
|
# we get the end of the tag
|
|
while not end_iter.ends_tag(texttag):
|
|
end_iter.forward_char()
|
|
|
|
# Detect XHTML-IM link
|
|
word = getattr(texttag, 'href', None)
|
|
if word:
|
|
if word.startswith('xmpp'):
|
|
kind = 'xmpp'
|
|
elif word.startswith('mailto:'):
|
|
kind = 'mail'
|
|
elif app.interface.sth_at_sth_dot_sth_re.match(word):
|
|
# it's a JID or mail
|
|
kind = 'sth_at_sth'
|
|
else:
|
|
word = self.get_buffer().get_text(begin_iter, end_iter, True)
|
|
|
|
if event.button.button == 3: # right click
|
|
self.show_context_menu(event, kind, word)
|
|
return True
|
|
|
|
self.plugin_modified = False
|
|
app.plugin_manager.extension_point(
|
|
'hyperlink_handler', word, kind, self,
|
|
self.get_toplevel())
|
|
if self.plugin_modified:
|
|
return
|
|
|
|
# we launch the correct application
|
|
if kind == 'xmpp':
|
|
word = word[5:]
|
|
if '?' in word:
|
|
(jid, action) = word.split('?')
|
|
if action == 'join':
|
|
app.interface.join_gc_minimal(self.account, jid)
|
|
else:
|
|
app.interface.new_chat_from_jid(self.account, jid)
|
|
else:
|
|
app.interface.new_chat_from_jid(self.account, word)
|
|
|
|
# handle geo:-URIs
|
|
elif word[:4] == 'geo:':
|
|
location = word[4:]
|
|
lat, _, lon = location.partition(',')
|
|
if lon == '':
|
|
return
|
|
uri = 'https://www.openstreetmap.org/?' \
|
|
'mlat=%(lat)s&mlon=%(lon)s&zoom=16' % \
|
|
{'lat': lat, 'lon': lon}
|
|
helpers.launch_browser_mailer(kind, uri)
|
|
else:
|
|
# other URIs
|
|
helpers.launch_browser_mailer(kind, word)
|
|
|
|
def display_html(self, html, textview, conv_textview, iter_=None):
|
|
buffer_ = self.get_buffer()
|
|
if iter_:
|
|
eob = iter_
|
|
else:
|
|
eob = buffer_.get_end_iter()
|
|
parser = xml.sax.make_parser()
|
|
parser.setContentHandler(HtmlHandler(textview, conv_textview, eob))
|
|
parser.parse(StringIO(html))
|
|
|
|
@staticmethod
|
|
def _on_copy_clipboard(textview):
|
|
clipboard = textview.get_clipboard(Gdk.SELECTION_CLIPBOARD)
|
|
selected = textview.get_selected_text()
|
|
clipboard.set_text(selected, -1)
|
|
GObject.signal_stop_emission_by_name(textview, 'copy-clipboard')
|
|
|
|
def get_selected_text(self):
|
|
bounds = self.get_buffer().get_selection_bounds()
|
|
selection = ''
|
|
if bounds:
|
|
(search_iter, end) = bounds
|
|
|
|
while search_iter.compare(end):
|
|
character = search_iter.get_char()
|
|
if character == '\ufffc':
|
|
anchor = search_iter.get_child_anchor()
|
|
if anchor:
|
|
text = anchor.plaintext
|
|
if text:
|
|
selection += text
|
|
else:
|
|
selection += character
|
|
else:
|
|
selection += character
|
|
search_iter.forward_char()
|
|
return selection
|
|
|
|
def replace_emojis(self, start_mark, end_mark, pixbuf, codepoint):
|
|
buffer_ = self.get_buffer()
|
|
start_iter = buffer_.get_iter_at_mark(start_mark)
|
|
end_iter = buffer_.get_iter_at_mark(end_mark)
|
|
buffer_.delete(start_iter, end_iter)
|
|
|
|
anchor = buffer_.create_child_anchor(start_iter)
|
|
anchor.plaintext = codepoint
|
|
emoji = Gtk.Image.new_from_pixbuf(pixbuf)
|
|
emoji.show()
|
|
self.add_child_at_anchor(emoji, anchor)
|
|
buffer_.delete_mark(start_mark)
|
|
buffer_.delete_mark(end_mark)
|