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# $Id: _SkeletonPage.py,v 1.13 2002/10/01 17:52:02 tavis_rudd Exp $
"""A baseclass for the SkeletonPage template
Meta-Data
==========
Author: Tavis Rudd <tavis@damnsimple.com>,
Version: $Revision: 1.13 $
Start Date: 2001/04/05
Last Revision Date: $Date: 2002/10/01 17:52:02 $
"""
__author__ = "Tavis Rudd <tavis@damnsimple.com>"
__revision__ = "$Revision: 1.13 $"[11:-2]
##################################################
## DEPENDENCIES ##
import time, types, os, sys
# intra-package imports ...
from Cheetah.Template import Template
##################################################
## GLOBALS AND CONSTANTS ##
True = (1==1)
False = (0==1)
##################################################
## CLASSES ##
class _SkeletonPage(Template):
"""A baseclass for the SkeletonPage template"""
docType = '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" ' + \
'"http://www.w3.org/TR/html4/loose.dtd">'
# docType = '<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ' + \
#'"http://www.w3.org/TR/xhtml1l/DTD/transitional.dtd">'
title = ''
siteDomainName = 'www.example.com'
siteCredits = 'Designed & Implemented by Tavis Rudd'
siteCopyrightName = "Tavis Rudd"
htmlTag = '<html>'
def __init__(self, *args, **KWs):
Template.__init__(self, *args, **KWs)
self._metaTags = {'HTTP-EQUIV':{'keywords':'Cheetah',
'Content-Type':'text/html; charset=iso-8859-1',
},
'NAME':{'generator':'Cheetah: The Python-Powered Template Engine'}
}
# metaTags = {'HTTP_EQUIV':{'test':1234}, 'NAME':{'test':1234,'test2':1234} }
self._stylesheets = {}
# stylesheets = {'.cssClassName':'stylesheetCode'}
self._stylesheetsOrder = []
# stylesheetsOrder = ['.cssClassName',]
self._stylesheetLibs = {}
# stylesheetLibs = {'libName':'libSrcPath'}
self._javascriptLibs = {}
self._javascriptTags = {}
# self._javascriptLibs = {'libName':'libSrcPath'}
self._bodyTagAttribs = {}
def metaTags(self):
"""Return a formatted vesion of the self._metaTags dictionary, using the
formatMetaTags function from Cheetah.Macros.HTML"""
return self.formatMetaTags(self._metaTags)
def stylesheetTags(self):
"""Return a formatted version of the self._stylesheetLibs and
self._stylesheets dictionaries. The keys in self._stylesheets must
be listed in the order that they should appear in the list
self._stylesheetsOrder, to ensure that the style rules are defined in
the correct order."""
stylesheetTagsTxt = ''
for title, src in self._stylesheetLibs.items():
stylesheetTagsTxt += '<link rel="stylesheet" type="text/css" href="' + str(src) + '" />\n'
if not self._stylesheetsOrder:
return stylesheetTagsTxt
stylesheetTagsTxt += '<style type="text/css"><!--\n'
for identifier in self._stylesheetsOrder:
if not self._stylesheets.has_key(identifier):
warning = '# the identifier ' + identifier + \
'was in stylesheetsOrder, but not in stylesheets'
print warning
stylesheetTagsTxt += warning
continue
attribsDict = self._stylesheets[identifier]
cssCode = ''
attribCode = ''
for k, v in attribsDict.items():
attribCode += str(k) + ': ' + str(v) + '; '
attribCode = attribCode[:-2] # get rid of the last semicolon
cssCode = '\n' + identifier + ' {' + attribCode + '}'
stylesheetTagsTxt += cssCode
stylesheetTagsTxt += '\n//--></style>\n'
return stylesheetTagsTxt
def javascriptTags(self):
"""Return a formatted version of the javascriptTags and
javascriptLibs dictionaries. Each value in javascriptTags
should be a either a code string to include, or a list containing the
JavaScript version number and the code string. The keys can be anything.
The same applies for javascriptLibs, but the string should be the
SRC filename rather than a code string."""
javascriptTagsTxt = []
for key, details in self._javascriptTags.items():
if type(details) not in (types.ListType, types.TupleType):
details = ['',details]
javascriptTagsTxt += ['<script language="JavaScript', str(details[0]),
'" type="text/javascript"><!--\n',
str(details[0]), '\n//--></script>\n']
for key, details in self._javascriptLibs.items():
if type(details) not in (types.ListType, types.TupleType):
details = ['',details]
javascriptTagsTxt += ['<script language="JavaScript', str(details[0]),
'" type="text/javascript" src="',
str(details[1]), '" />\n']
return ''.join(javascriptTagsTxt)
def bodyTag(self):
"""Create a body tag from the entries in the dict bodyTagAttribs."""
return self.formHTMLTag('body', self._bodyTagAttribs)
def imgTag(self, src, alt='', width=None, height=None, border=0):
"""Dynamically generate an image tag. Cheetah will try to convert the
src argument to a WebKit serverSidePath relative to the servlet's
location. If width and height aren't specified they are calculated using
PIL or ImageMagick if available."""
src = self.normalizePath(src)
if not width or not height:
try: # see if the dimensions can be calc'd with PIL
import Image
im = Image.open(src)
calcWidth, calcHeight = im.size
del im
if not width: width = calcWidth
if not height: height = calcHeight
except:
try: # try imageMagick instead
calcWidth, calcHeight = os.popen(
'identify -format "%w,%h" ' + src).read().split(',')
if not width: width = calcWidth
if not height: height = calcHeight
except:
pass
if width and height:
return ''.join(['<img src="', src, '" width="', str(width), '" height="', str(height),
'" alt="', alt, '" border="', str(border), '" />'])
elif width:
return ''.join(['<img src="', src, '" width="', str(width),
'" alt="', alt, '" border="', str(border), '" />'])
elif height:
return ''.join(['<img src="', src, '" height="', str(height),
'" alt="', alt, '" border="', str(border), '" />'])
else:
return ''.join(['<img src="', src, '" alt="', alt, '" border="', str(border),'" />'])
def currentYr(self):
"""Return a string representing the current yr."""
return time.strftime("%Y",time.localtime(time.time()))
def currentDate(self, formatString="%b %d, %Y"):
"""Return a string representing the current localtime."""
return time.strftime(formatString,time.localtime(time.time()))
def spacer(self, width=1,height=1):
return '<img src="spacer.gif" width="%s" height="%s" alt="" />'% (str(width), str(height))
def formHTMLTag(self, tagName, attributes={}):
"""returns a string containing an HTML <tag> """
tagTxt = ['<', tagName.lower()]
for name, val in attributes.items():
tagTxt += [' ', name.lower(), '="', str(val),'"']
tagTxt.append('>')
return ''.join(tagTxt)
def formatMetaTags(self, metaTags):
"""format a dict of metaTag definitions into an HTML version"""
metaTagsTxt = []
if metaTags.has_key('HTTP-EQUIV'):
for http_equiv, contents in metaTags['HTTP-EQUIV'].items():
metaTagsTxt += ['<meta http-equiv="', str(http_equiv), '" content="',
str(contents), '" />\n']
if metaTags.has_key('NAME'):
for name, contents in metaTags['NAME'].items():
metaTagsTxt += ['<meta name="', str(name), '" content="', str(contents),
'" />\n']
return ''.join(metaTagsTxt)
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