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PySolFC/pysollib/pysolgtk/tkhtml.py
Shlomi Fish b887d6042b Made flake8 happier. 
Removed __all__ and stuff - we use explicit imports now.
2017-09-18 13:04:53 +03:00

588 lines
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Python
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#!/usr/bin/env python
# -*- mode: python; coding: utf-8; -*-
# ---------------------------------------------------------------------------
#
# Copyright (C) 1998-2003 Markus Franz Xaver Johannes Oberhumer
# Copyright (C) 2003 Mt. Hood Playing Card Co.
# Copyright (C) 2005-2009 Skomoroh
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# ---------------------------------------------------------------------------
# imports
import os
import sys
import htmllib
import formatter
import traceback
from pysollib.mygettext import _
import gtk
import pango
import gobject
from gtk import gdk
# PySol imports
from pysollib.mfxutil import Struct, openURL
from pysollib.settings import TITLE
# Toolkit imports
from tkwidget import MfxMessageDialog
if __name__ == '__main__':
d = os.path.abspath(os.path.join(sys.path[0], '..', '..'))
sys.path.append(d)
import gettext
gettext.install('pysol', d, unicode=True)
if sys.version_info > (3,):
unicode = str
REMOTE_PROTOCOLS = ('ftp:', 'gopher:', 'http:', 'mailto:', 'news:', 'telnet:')
# ************************************************************************
# *
# ************************************************************************
class tkHTMLWriter(formatter.NullWriter):
def __init__(self, text, viewer, app):
formatter.NullWriter.__init__(self)
self.text = text # gtk.TextBuffer
self.viewer = viewer # HTMLViewer
self.anchor = None
self.anchor_mark = None
self.font = None
self.font_mark = None
self.indent = ''
def write(self, data):
data = unicode(data)
self.text.insert(self.text.get_end_iter(), data, len(data))
def anchor_bgn(self, href, name, type):
if href:
# self.text.update_idletasks() # update display during parsing
self.anchor = (href, name, type)
self.anchor_mark = self.text.get_end_iter().get_offset()
def anchor_end(self):
if self.anchor:
href = self.anchor[0]
tag_name = 'href_' + href
if tag_name in self.viewer.anchor_tags:
tag = self.viewer.anchor_tags[tag_name][0]
else:
tag = self.text.create_tag(tag_name, foreground='blue',
underline=pango.UNDERLINE_SINGLE)
self.viewer.anchor_tags[tag_name] = (tag, href)
tag.connect('event', self.viewer.anchor_event, href)
u = self.viewer.normurl(href, with_protocol=False)
if u in self.viewer.visited_urls:
tag.set_property('foreground', '#660099')
start = self.text.get_iter_at_offset(self.anchor_mark)
end = self.text.get_end_iter()
# print 'apply_tag href >>', start.get_offset(), end.get_offset()
self.text.apply_tag(tag, start, end)
self.anchor = None
def new_font(self, font):
# end the current font
if self.font:
# print 'end_font(%s)' % `self.font`
start = self.text.get_iter_at_offset(self.font_mark)
end = self.text.get_end_iter()
# print 'apply_tag font >>', start.get_offset(), end.get_offset()
self.text.apply_tag_by_name(self.font, start, end)
self.font = None
# start the new font
if font:
# print 'start_font(%s)' % `font`
self.font_mark = self.text.get_end_iter().get_offset()
if font[0] in self.viewer.fontmap:
self.font = font[0]
elif font[3]:
self.font = 'pre'
elif font[2]:
self.font = 'bold'
elif font[1]:
self.font = 'italic'
else:
self.font = None
def new_margin(self, margin, level):
self.indent = ' ' * level
def send_label_data(self, data):
# self.write(self.indent + data + ' ')
self.write(self.indent)
if data == '*': # <li>
img = self.viewer.symbols_img.get('disk')
if img:
self.text.insert_pixbuf(self.text.get_end_iter(), img)
else:
self.write('*') # unichr(0x2022)
else:
self.write(data)
self.write(' ')
def send_paragraph(self, blankline):
self.write('\n' * blankline)
def send_line_break(self):
self.write('\n')
def send_hor_rule(self, *args):
# ~ width = int(int(self.text['width']) * 0.9)
width = 70
self.write('_' * width)
self.write('\n')
def send_literal_data(self, data):
self.write(data)
def send_flowing_data(self, data):
self.write(data)
# ************************************************************************
# *
# ************************************************************************
class tkHTMLParser(htmllib.HTMLParser):
def anchor_bgn(self, href, name, type):
self.formatter.flush_softspace()
htmllib.HTMLParser.anchor_bgn(self, href, name, type)
self.formatter.writer.anchor_bgn(href, name, type)
def anchor_end(self):
if self.anchor:
self.anchor = None
self.formatter.writer.anchor_end()
def do_dt(self, attrs):
self.formatter.end_paragraph(1)
self.ddpop()
def handle_image(self, src, alt, ismap, align, width, height):
self.formatter.writer.viewer.showImage(
src, alt, ismap, align, width, height)
# ************************************************************************
# *
# ************************************************************************
class HTMLViewer:
symbols_fn = {} # filenames, loaded in Application.loadImages3
symbols_img = {}
def __init__(self, parent, app=None, home=None):
self.parent = parent
self.app = app
self.home = home
self.url = None
self.history = Struct(
list=[],
index=0,
)
self.visited_urls = []
self.images = {}
self.anchor_tags = {}
# create buttons
vbox = gtk.VBox()
parent.table.attach(
vbox,
0, 1, 0, 1,
gtk.EXPAND | gtk.FILL, gtk.EXPAND | gtk.FILL | gtk.SHRINK,
0, 0)
buttons_box = gtk.HBox()
vbox.pack_start(buttons_box, fill=True, expand=False)
for name, label, callback in (
('homeButton', _('Index'), self.goHome),
('backButton', _('Back'), self.goBack),
('forwardButton', _('Forward'), self.goForward),
('closeButton', _('Close'), self.destroy)
):
button = gtk.Button(label)
button.show()
button.connect('clicked', callback)
buttons_box.pack_start(button, fill=True, expand=False)
button.set_property('can-focus', False)
setattr(self, name, button)
# create text widget
self.textview = gtk.TextView()
self.textview.show()
self.textview.set_left_margin(10)
self.textview.set_right_margin(10)
self.textview.set_cursor_visible(False)
self.textview.set_editable(False)
self.textview.set_wrap_mode(gtk.WRAP_WORD)
self.textbuffer = self.textview.get_buffer()
sw = gtk.ScrolledWindow()
sw.set_property('hscrollbar-policy', gtk.POLICY_AUTOMATIC)
sw.set_property('vscrollbar-policy', gtk.POLICY_AUTOMATIC)
sw.set_property('border-width', 0)
sw.add(self.textview)
sw.show()
vbox.pack_start(sw, fill=True, expand=True)
self.vadjustment = sw.get_vadjustment()
self.hadjustment = sw.get_hadjustment()
# statusbar
self.statusbar = gtk.Statusbar()
self.statusbar.show()
vbox.pack_start(self.statusbar, fill=True, expand=False)
# load images
for name, fn in self.symbols_fn.items():
self.symbols_img[name] = self.getImage(fn)
# bindings
parent.connect('key-press-event', self.key_press_event)
parent.connect('destroy', self.destroy)
self.textview.connect('motion-notify-event', self.motion_notify_event)
self.textview.connect('leave-notify-event', self.leave_event)
self.textview.connect('enter-notify-event', self.motion_notify_event)
self._changed_cursor = False
self.createFontMap()
# cursor
self.defcursor = gdk.XTERM
self.handcursor = gdk.HAND2
# self.textview.realize()
# window = self.textview.get_window(gtk.TEXT_WINDOW_TEXT)
# window.set_cursor(gdk.Cursor(self.defcursor))
parent.set_default_size(600, 440)
parent.show_all()
gobject.idle_add(gtk.main)
def motion_notify_event(self, widget, event):
x, y, _ = widget.window.get_pointer()
x, y = widget.window_to_buffer_coords(gtk.TEXT_WINDOW_TEXT, x, y)
tags = widget.get_iter_at_location(x, y).get_tags()
is_over_anchor = False
for tag, href in self.anchor_tags.values():
if tag in tags:
is_over_anchor = True
break
if is_over_anchor:
if not self._changed_cursor:
# print 'set cursor hand'
window = widget.get_window(gtk.TEXT_WINDOW_TEXT)
window.set_cursor(gdk.Cursor(self.handcursor))
self._changed_cursor = True
self.statusbar.pop(0)
href = self.normurl(href)
self.statusbar.push(0, href)
else:
if self._changed_cursor:
# print 'set cursor xterm'
window = widget.get_window(gtk.TEXT_WINDOW_TEXT)
window.set_cursor(gdk.Cursor(self.defcursor))
self._changed_cursor = False
self.statusbar.pop(0)
return False
def leave_event(self, widget, event):
if self._changed_cursor:
# print 'set cursor xterm'
window = widget.get_window(gtk.TEXT_WINDOW_TEXT)
window.set_cursor(gdk.Cursor(self.defcursor))
self._changed_cursor = False
self.statusbar.pop(0)
def anchor_event(self, tag, textview, event, iter, href):
# print 'anchor_event:', args
if event.type == gdk.BUTTON_PRESS and event.button == 1:
self.updateHistoryXYView()
self.display(href)
return True
return False
def key_press_event(self, w, e):
if gdk.keyval_name(e.keyval) == 'Escape':
self.destroy()
def createFontMap(self):
try: # if app
default_font = self.app.getFont('sans')
fixed_font = self.app.getFont('fixed')
except:
traceback.print_exc()
default_font = ('times new roman', 12)
fixed_font = ('courier', 12)
size = default_font[1]
sign = 1
if size < 0:
sign = -1
self.fontmap = {
'h1': (default_font[0], size + 12*sign, 'bold'),
'h2': (default_font[0], size + 8*sign, 'bold'),
'h3': (default_font[0], size + 6*sign, 'bold'),
'h4': (default_font[0], size + 4*sign, 'bold'),
'h5': (default_font[0], size + 2*sign, 'bold'),
'h6': (default_font[0], size + 1*sign, 'bold'),
'bold': (default_font[0], size, 'bold'),
}
for tag_name in self.fontmap.keys():
font = self.fontmap[tag_name]
font = font[0]+' '+str(font[1])
tag = self.textbuffer.create_tag(tag_name, font=font)
tag.set_property('weight', pango.WEIGHT_BOLD)
font = font[0]+' '+str(font[1])
tag = self.textbuffer.create_tag('italic', style=pango.STYLE_ITALIC)
self.fontmap['italic'] = (font[0], size, 'italic')
font = fixed_font[0]+' '+str(fixed_font[1])
self.textbuffer.create_tag('pre', font=font)
self.fontmap['pre'] = fixed_font
# set default font
fd = pango.FontDescription(default_font[0]+' '+str(default_font[1]))
if 'bold' in default_font:
fd.set_weight(pango.WEIGHT_BOLD)
if 'italic' in default_font:
fd.set_style(pango.STYLE_ITALIC)
self.textview.modify_font(fd)
def destroy(self, *event):
self.parent.destroy()
self.parent = None
def get_position(self):
pos = self.hadjustment.get_value(), self.vadjustment.get_value()
return pos
def set_position(self, pos):
def callback(pos, hadj, vadj):
hadj.set_value(pos[0])
vadj.set_value(pos[1])
gobject.idle_add(callback, pos, self.hadjustment, self.vadjustment)
# locate a file relative to the current self.url
def basejoin(self, url, baseurl=None, relpath=1):
if baseurl is None:
baseurl = self.url
if 0:
import urllib
url = urllib.pathname2url(url)
if relpath and self.url:
url = urllib.basejoin(baseurl, url)
else:
url = os.path.normpath(url)
if relpath and baseurl and not os.path.isabs(url):
h1, t1 = os.path.split(url)
h2, t2 = os.path.split(baseurl)
if h1 != h2:
url = os.path.join(h2, h1, t1)
url = os.path.normpath(url)
return url
def normurl(self, url, with_protocol=True):
for p in REMOTE_PROTOCOLS:
if url.startswith(p):
break
else:
url = self.basejoin(url)
if with_protocol:
if os.name == 'nt':
url = url.replace('\\', '/')
url = 'file://'+url
return url
def openfile(self, url):
if url[-1:] == '/' or os.path.isdir(url):
url = os.path.join(url, 'index.html')
url = os.path.normpath(url)
return open(url, 'rb'), url
def display(self, url, add=1, relpath=1, position=(0, 0)):
# print 'display:', url, position
# for some reason we have to stop the PySol demo
# (is this a multithread problem with tkinter ?)
try:
# self.app.game.stopDemo()
# self.app.game._cancelDrag()
pass
except:
pass
# ftp: and http: would work if we use urllib, but this widget is
# far too limited to display anything but our documentation...
for p in REMOTE_PROTOCOLS:
if url.startswith(p):
if not openURL(url):
self.errorDialog(TITLE + _('''HTML limitation:
The %s protocol is not supported yet.
Please use your standard web browser
to open the following URL:
%s
''') % (p, url))
return
# locate the file relative to the current url
url = self.basejoin(url, relpath=relpath)
# read the file
try:
file = None
if 0:
import urllib
file = urllib.urlopen(url)
else:
file, url = self.openfile(url)
data = file.read()
file.close()
file = None
except Exception as ex:
if file:
file.close()
self.errorDialog(
_('Unable to service request:\n') + url + '\n\n' + str(ex))
return
except:
if file:
file.close()
self.errorDialog(_('Unable to service request:\n') + url)
return
self.url = url
if self.home is None:
self.home = self.url
if add:
self.addHistory(self.url, position=position)
# print self.history.index, self.history.list
if self.history.index > 1:
self.backButton.set_sensitive(True)
else:
self.backButton.set_sensitive(False)
if self.history.index < len(self.history.list):
self.forwardButton.set_sensitive(True)
else:
self.forwardButton.set_sensitive(False)
start, end = self.textbuffer.get_bounds()
self.textbuffer.delete(start, end)
writer = tkHTMLWriter(self.textbuffer, self, self.app)
fmt = formatter.AbstractFormatter(writer)
parser = tkHTMLParser(fmt)
parser.feed(data)
parser.close()
self.set_position(position)
self.parent.set_title(parser.title)
def addHistory(self, url, position=(0, 0)):
if url not in self.visited_urls:
self.visited_urls.append(url)
if self.history.index > 0:
u, pos = self.history.list[self.history.index-1]
if u == url:
self.updateHistoryXYView()
return
del self.history.list[self.history.index:]
self.history.list.append((url, position))
self.history.index = self.history.index + 1
def updateHistoryXYView(self):
if self.history.index > 0:
url, position = self.history.list[self.history.index-1]
position = self.get_position()
self.history.list[self.history.index-1] = (url, position)
def goBack(self, *event):
if self.history.index > 1:
self.updateHistoryXYView()
self.history.index = self.history.index - 1
url, position = self.history.list[self.history.index-1]
self.display(url, add=0, relpath=0, position=position)
def goForward(self, *event):
if self.history.index < len(self.history.list):
self.updateHistoryXYView()
url, position = self.history.list[self.history.index]
self.history.index = self.history.index + 1
self.display(url, add=0, relpath=0, position=position)
def goHome(self, *event):
if self.home and self.home != self.url:
self.updateHistoryXYView()
self.display(self.home, relpath=0)
def errorDialog(self, msg):
MfxMessageDialog(
self.parent, title=TITLE+' HTML Problem',
text=msg, bitmap='warning',
strings=(_('&OK'),), default=0)
def getImage(self, fn):
if fn in self.images:
return self.images[fn]
try:
img = gdk.pixbuf_new_from_file(fn)
except:
img = None
self.images[fn] = img
return img
def showImage(self, src, alt, ismap, align, width, height):
url = self.basejoin(src)
img = self.getImage(url)
if img:
iter = self.textbuffer.get_end_iter()
self.textbuffer.insert_pixbuf(iter, img)
# ************************************************************************
# *
# ************************************************************************
def tkhtml_main(args):
try:
url = args[1]
except:
url = os.path.join(os.pardir, os.pardir, 'data', 'html', 'index.html')
top = gtk.Window()
table = gtk.Table()
table.show()
top.add(table)
top.table = table
viewer = HTMLViewer(top)
viewer.app = None
viewer.display(url)
top.connect('destroy', lambda w: gtk.main_quit())
gtk.main()
return 0
if __name__ == '__main__':
sys.exit(tkhtml_main(sys.argv))
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