Donovan Preston wrote:
> my liking. So I took it upon myself to see if I could get the TAL (Tag
> Attribute Language) component of ZPT working with WebKit, and it was
> surprisingly easy.
Very interesting. I changed your version a little bit,
so it only regenerates the page when it is really changed.
I get a massive speedup with that.
please check my code carefully to see if everything is ok.
the new file is attached..
--
Tom Schwaller
[EMAIL PROTECTED]
http://www.python.de
from TAL.DummyEngine import DummyEngine
from TAL.driver import compilefile
from TAL.TALInterpreter import TALInterpreter
from WebKit.Page import Page
from cStringIO import StringIO
import os
class WebKitEngine(DummyEngine):
"""
Override DummyEngine's __init__ to take the WebKit page object to which we
wish to refer in our
TAL Template HTML. Call DummyEngine.__init__ to initialize the engine, then add
page to the local namespace.
"""
def __init__(self, page):
DummyEngine.__init__(self)
# Add page to the WebKitEngine's local namespace so that the variable
'page' will be accessible
# from TAL.
self.setLocal('page', page)
class TALPage(Page):
"""
TALPage makes TAL do the work of generating the HTML from a template file
"""
base = ''
file = ''
def __init__(self):
Page.__init__(self)
self._path = self.base + self.file
self._mtime = -1
# Create a memory-mapped file for TALInterpreter to write the final
HTML output to.
self._fileObj = StringIO()
def awake(self, transaction):
Page.awake(self, transaction)
if os.path.getmtime(self._path) > self._mtime:
self._mtime = os.path.getmtime(self._path)
self._fileObj.truncate()
# Compilefile returns a two-element tuple containing the
program and the macros to interpret
program, macros = compilefile(self._path, "html")
# Create a WebKitEngine and pass it a reference to ourself
(The current page object)
engine = WebKitEngine(self)
TALInterpreter(program, macros, engine, self._fileObj, wrap=0,
tal=1, showtal=-1, strictinsert=1)()
def writeHTML(self):
# Send the page to WebKit for output to the web browser.
self.writeln(self._fileObj.getvalue())
