Image macro should support InterMapTxt

[anonymous]

The image macro does not seem to support InterMapTxt prefixes. This would allow to easily extend the image macro with new capabilities e.g. for frequently linked badges, build status icons etc.)

[anonymous]

As a workaround a custom plugin can be written:

from trac.core import *
from trac.wiki.macros import WikiMacroBase
from trac.wiki.formatter import format_to_oneliner
from trac.wiki.interwiki import InterWikiMap

class SpecialImageMacro(WikiMacroBase):
    """Expands to `[[Image(SpecialImage:$1,link=SpecialImageLink:$1)]]`.
   
    Two InterMapTxt prefixes must be defined:
    {{{
    SpecialImage      http://example.com/$1.png
    SpecialImageLink  http://example.com/$1.html
    }}}
    """
    def expand_macro(self, formatter, name, content, args):
        intermap = InterWikiMap(self.env)
        src = intermap.url("SpecialImage", content)[0]
        link = intermap.url("SpecialImageLink", content)[0]
        wiki = "[[Image(%s,link=%s,title=Special Image %s)]]" % (src, link, content)
        return format_to_oneliner(self.env, formatter.context, wiki)

[Ryan J Ollos]

PatchWelcome.

[anonymous]

For example with this prefix:

shields https://img.shields.io/

Wiki markup like this:

[[Image(shields:travis/edgewall/trac.svg)]]
[[Image(shields:pypi/dm/trac.svg)]]
[[Image(shields:pypi/v/trac.svg)]]

should become: etc.

[Jun Omae]

See PatchWelcome.

[anonymous]

trac/wiki/macros.py

@@ -38 +38 @@
 from trac.wiki.formatter import (
     format_to_html, format_to_oneliner, extract_link, OutlineFormatter
 )
+from trac.wiki.interwiki import InterWikiMap
 
 
 # TODO: should be moved in .api
@@ -632 +633 @@
                 attachment = Resource(realm, id).child('attachment', filename)
         elif len(parts) == 2:
             realm, filename = parts
+            interwikimap = InterWikiMap(self.env)
             if realm in browser_links:  # source:path
                 # TODO: use context here as well
                 rev = None
@@ -641 +643 @@
                 raw_url = formatter.href.browser(filename, rev=rev,
                                                  format='raw')
                 desc = filespec
+            elif realm in interwikimap:
+                url, desc = interwikimap.url(realm, filename)
+                raw_url = url
             else:  # #ticket:attachment or WikiPage:attachment
                 # FIXME: do something generic about shorthand forms...
                 realm = None

[Ryan J Ollos]

Tests and documentation update were also needed. Proposed changes in log:rjollos.git:t12025.