#!/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/>.
##
##---------------------------------------------------------------------------##
__all__ = ['HTMLViewer']
# imports
import os, sys
import htmllib, formatter
import Tkinter
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)
# PySol imports
from pysollib.mfxutil import Struct, openURL
from pysollib.settings import TITLE
# Toolkit imports
from tkutil import bind, unbind_destroy
from tkwidget import MfxMessageDialog
from statusbar import HtmlStatusbar
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
self.viewer = viewer
##
if app:
font = app.getFont("sans")
fixed = app.getFont("fixed")
else:
font = ('helvetica', 12)
fixed = ('courier', 12)
size = font[1]
sign = 1
if size < 0: sign = -1
self.fontmap = {
"h1" : (font[0], size + 12*sign, "bold"),
"h2" : (font[0], size + 8*sign, "bold"),
"h3" : (font[0], size + 6*sign, "bold"),
"h4" : (font[0], size + 4*sign, "bold"),
"h5" : (font[0], size + 2*sign, "bold"),
"h6" : (font[0], size + 1*sign, "bold"),
"bold" : (font[0], size, "bold"),
"italic" : (font[0], size, "italic"),
"pre" : fixed,
}
self.text.config(cursor=self.viewer.defcursor, font=font)
for f in self.fontmap.keys():
self.text.tag_config(f, font=self.fontmap[f])
self.anchor = None
self.anchor_mark = None
self.font = None
self.font_mark = None
self.indent = ""
def createCallback(self, href):
class Functor:
def __init__(self, viewer, arg):
self.viewer = viewer
self.arg = arg
def __call__(self, *args):
self.viewer.updateHistoryXYView()
return self.viewer.display(self.arg)
return Functor(self.viewer, href)
def write(self, data):
self.text.insert("insert", 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.index("insert")
def anchor_end(self):
if self.anchor:
url = self.anchor[0]
tag = "href_" + url
self.text.tag_add(tag, self.anchor_mark, "insert")
self.text.tag_bind(tag, "<1>", self.createCallback(url))
self.text.tag_bind(tag, "<Enter>", lambda e: self.anchor_enter(url))
self.text.tag_bind(tag, "<Leave>", self.anchor_leave)
fg = 'blue'
u = self.viewer.normurl(url, with_protocol=False)
if u in self.viewer.visited_urls:
fg = '#660099'
self.text.tag_config(tag, foreground=fg, underline=1)
self.anchor = None
def anchor_enter(self, url):
url = self.viewer.normurl(url)
self.viewer.statusbar.updateText(url=url)
self.text.config(cursor=self.viewer.handcursor)
def anchor_leave(self, *args):
self.viewer.statusbar.updateText(url='')
self.text.config(cursor=self.viewer.defcursor)
def new_font(self, font):
# end the current font
if self.font:
##print "end_font(%s)" % `self.font`
self.text.tag_add(self.font, self.font_mark, "insert")
self.font = None
# start the new font
if font:
##print "start_font(%s)" % `font`
self.font_mark = self.text.index("insert")
if font[0] in self.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.image_create(index='insert', image=img,
padx=0, pady=0)
else:
self.write('*')
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)
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 = {} # need to keep a reference because of garbage collection
self.defcursor = parent["cursor"]
##self.defcursor = 'xterm'
self.handcursor = "hand2"
# create buttons
button_width = 8
self.homeButton = Tkinter.Button(parent, text=_("Index"),
width=button_width,
command=self.goHome)
self.homeButton.grid(row=0, column=0, sticky='w')
self.backButton = Tkinter.Button(parent, text=_("Back"),
width=button_width,
command=self.goBack)
self.backButton.grid(row=0, column=1, sticky='w')
self.forwardButton = Tkinter.Button(parent, text=_("Forward"),
width=button_width,
command=self.goForward)
self.forwardButton.grid(row=0, column=2, sticky='w')
self.closeButton = Tkinter.Button(parent, text=_("Close"),
width=button_width,
command=self.destroy)
self.closeButton.grid(row=0, column=3, sticky='e')
# create text widget
text_frame = Tkinter.Frame(parent)
text_frame.grid(row=1, column=0, columnspan=4, sticky='nsew')
text_frame.grid_propagate(False)
vbar = Tkinter.Scrollbar(text_frame)
vbar.pack(side='right', fill='y')
self.text = Tkinter.Text(text_frame,
fg='black', bg='white',
bd=1, relief='sunken',
cursor=self.defcursor,
wrap='word', padx=10)
self.text.pack(side='left', fill='both', expand=True)
self.text["yscrollcommand"] = vbar.set
vbar["command"] = self.text.yview
# statusbar
self.statusbar = HtmlStatusbar(parent, row=2, column=0, columnspan=4)
parent.columnconfigure(2, weight=1)
parent.rowconfigure(1, weight=1)
# load images
for name, fn in self.symbols_fn.items():
self.symbols_img[name] = self.getImage(fn)
self.initBindings()
def initBindings(self):
w = self.parent
bind(w, "WM_DELETE_WINDOW", self.destroy)
bind(w, "<Escape>", self.destroy)
bind(w, "<KeyPress-Prior>", self.page_up)
bind(w, "<KeyPress-Next>", self.page_down)
bind(w, "<KeyPress-Up>", self.unit_up)
bind(w, "<KeyPress-Down>", self.unit_down)
bind(w, "<KeyPress-Begin>", self.scroll_top)
bind(w, "<KeyPress-Home>", self.scroll_top)
bind(w, "<KeyPress-End>", self.scroll_bottom)
bind(w, "<KeyPress-BackSpace>", self.goBack)
def destroy(self, *event):
unbind_destroy(self.parent)
try:
self.parent.wm_withdraw()
except: pass
try:
self.parent.destroy()
except: pass
self.parent = None
def _yview(self, *args):
self.text.yview(*args)
return 'break'
def page_up(self, *event):
return self._yview('scroll', -1, 'page')
def page_down(self, *event):
return self._yview('scroll', 1, 'page')
def unit_up(self, *event):
return self._yview('scroll', -1, 'unit')
def unit_down(self, *event):
return self._yview('scroll', 1, 'unit')
def scroll_top(self, *event):
return self._yview('moveto', 0)
def scroll_bottom(self, *event):
return self._yview('moveto', 1)
# 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 cmp(h1, h2) != 0:
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, xview=0, yview=0):
# for some reason we have to stop the PySol demo
# (is this a multithread problem with Tkinter ?)
if self.app and self.app.game:
self.app.game.stopDemo()
##self.app.game._cancelDrag()
##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, 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, xview=xview, yview=yview)
##print self.history.index, self.history.list
if self.history.index > 1:
self.backButton.config(state="normal")
else:
self.backButton.config(state="disabled")
if self.history.index < len(self.history.list):
self.forwardButton.config(state="normal")
else:
self.forwardButton.config(state="disabled")
old_c1, old_c2 = self.defcursor, self.handcursor
self.defcursor = self.handcursor = "watch"
self.text.config(cursor=self.defcursor)
self.text.update_idletasks()
##self.frame.config(cursor=self.defcursor)
##self.frame.update_idletasks()
self.text.config(state="normal")
self.text.delete("1.0", "end")
##self.images = {}
writer = tkHTMLWriter(self.text, self, self.app)
fmt = formatter.AbstractFormatter(writer)
parser = tkHTMLParser(fmt)
parser.feed(data)
parser.close()
self.text.config(state="disabled")
if 0.0 <= xview <= 1.0:
self.text.xview_moveto(xview)
if 0.0 <= yview <= 1.0:
self.text.yview_moveto(yview)
self.parent.wm_title(parser.title)
self.parent.wm_iconname(parser.title)
self.defcursor, self.handcursor = old_c1, old_c2
self.text.config(cursor=self.defcursor)
##self.frame.config(cursor=self.defcursor)
def addHistory(self, url, xview=0, yview=0):
if url not in self.visited_urls:
self.visited_urls.append(url)
if self.history.index > 0:
u, xv, yv = self.history.list[self.history.index-1]
if cmp(u, url) == 0:
self.updateHistoryXYView()
return
del self.history.list[self.history.index : ]
self.history.list.append((url, xview, yview))
self.history.index = self.history.index + 1
def updateHistoryXYView(self):
if self.history.index > 0:
url, xview, yview = self.history.list[self.history.index-1]
xview = self.text.xview()[0]
yview = self.text.yview()[0]
self.history.list[self.history.index-1] = (url, xview, yview)
def goBack(self, *event):
if self.history.index > 1:
self.updateHistoryXYView()
self.history.index = self.history.index - 1
url, xview, yview = self.history.list[self.history.index-1]
self.display(url, add=0, relpath=0, xview=xview, yview=yview)
def goForward(self, *event):
if self.history.index < len(self.history.list):
self.updateHistoryXYView()
url, xview, yview = self.history.list[self.history.index]
self.history.index = self.history.index + 1
self.display(url, add=0, relpath=0, xview=xview, yview=yview)
def goHome(self, *event):
if self.home and cmp(self.home, self.url) != 0:
self.updateHistoryXYView()
self.display(self.home, relpath=0)
def errorDialog(self, msg):
d = MfxMessageDialog(self.parent, title=TITLE+" HTML Problem",
text=msg,
##bitmap="warning", # FIXME: this interp don't have images
strings=(_("&OK"),), default=0)
def getImage(self, fn):
if fn in self.images:
return self.images[fn]
try:
img = Tkinter.PhotoImage(master=self.parent, 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:
self.text.image_create(index="insert", image=img, padx=0, pady=0)
# ************************************************************************
# *
# ************************************************************************
def tkhtml_main(args):
try:
url = args[1]
except:
url = os.path.join(os.pardir, os.pardir, "data", "html", "index.html")
top = Tkinter.Tk()
top.wm_minsize(400, 200)
viewer = HTMLViewer(top)
viewer.app = None
viewer.display(url)
top.mainloop()
return 0
if __name__ == "__main__":
sys.exit(tkhtml_main(sys.argv))