MoinMoin: attachment:ImageLink-1.2.3-3.py of MacroMarket/ImageLink12

   1 # -*- coding: iso-8859-1 -*-
   2 """
   3     MoinMoin - ImageLink Macro
   4 
   5     PURPOSE:
   6         This macro is used to set a link as WikiName for an attached image. Optional the size of the
   7 	image could be adjusted.
   8 
   9     CALLING SEQUENCE:
  10         [[ImageLink(attachment,WikiName,[width,[height]])]]
  11 
  12     INPUTS:
  13         attachment:image name of attachment
  14 	WikiName: the page to set the link to
  15 
  16     OPTIONAL INPUTS:
  17         width: width of the embedded image
  18 	height: height of the embedded image
  19 
  20     EXAMPLE:
  21       [[ImageLink(plot.gif,FrontPage,20,20)]]
  22       [[ImageLink(plot.gif,FrontPage)]]
  23 
  24     PROCEDURE:
  25       This routine requires attachment enabled. If the attachment isn't downloaded at all
  26       the attachment line is shown.
  27 
  28       It must be in "MoinMoin/macro"
  29 
  30     MODIFICATION HISTORY:
  31         @copyright: 2004 by Reimar Bauer (R.Bauer@fz-juelich.de)
  32         @license: GNU GPL, see COPYING for details.
  33 
  34 	Marcin Zalewski:
  35 	    Some things that were causing problems on my wiki are changed
  36             (wikiutil.link_tag and macro.formatter.pagelink implemented)
  37 
  38         Marcin Zalewski:
  39             Added title attribute to the created link. One could generalize that to
  40             add arbitrary attributes.
  41 
  42             One could also add class attributes to <a> and/or
  43             <img> elements. I do not see the need for such modifications. If however this is
  44             to be done in the future one would need to add 'html_class' key to the kw dictionary
  45             with a corresponding value to add class to <img> element. To add class to <a> element
  46             one needs to add 'css_class' key with a corresponding value to the dictionary passed to
  47             pagelink call.
  48 
  49 """
  50 
  51 #Dependencies = []
  52 
  53 from MoinMoin.action import AttachFile
  54 from MoinMoin import wikiutil
  55 import os,string
  56 
  57 
  58 def execute(macro, text):
  59 
  60    kw ={} # create a dictionary for the formatter.image call
  61 
  62    if text:
  63       args=text.split(',')
  64    else:
  65       args=[]
  66    number_args=len(args)
  67    if number_args < 2:
  68       return macro.formatter.sysmsg('Not enough arguments to ImageLink macro')
  69    attname=wikiutil.taintfilename(macro.formatter.text(args[0]))
  70    linked_page=macro.formatter.text(args[1])
  71    current_pagename=macro.formatter.page.page_name
  72    kw['src']=AttachFile.getAttachUrl(current_pagename,attname,macro.request)
  73 
  74    # Check if attachment used for image link exists
  75    attachment_path = os.path.join(AttachFile.getAttachDir(current_pagename), attname)
  76    if not os.path.exists(attachment_path):
  77       import urllib
  78       linktext = macro.request.getText('Upload new attachment "%(filename)s"')
  79       return wikiutil.link_tag(macro.request,
  80                                '%s?action=AttachFile&amp;rename=%s' %
  81                                (wikiutil.quoteWikiname(current_pagename),
  82                                 urllib.quote_plus(attname)),
  83                                linktext % {'filename': attname})
  84 
  85 
  86 
  87    if (number_args >= 3 and args[2] != ''):
  88       kw['width']=wikiutil.escape(string.join(args[2],''), quote=1)
  89    if (number_args >= 4 and args[3] != ''):
  90       kw['height']=wikiutil.escape(string.join(args[3],''), quote=1)
  91    image_link=macro.formatter.image(**kw)
  92    pagelink_attrs='title="'+wikiutil.escape(linked_page, quote=1)+'"'
  93    return macro.formatter.pagelink(linked_page, image_link, attrs=pagelink_attrs)