hgweb: plug followlines action in annotate view

Add the followlines.js script and corresponding parameters as data attribute
on <tbody class="sourcelines"> element.
Extend CSS rules so that they also match the DOM structure of annotate view.

As previously, only address paper and gitweb styles (other styles do not have
followlines at all).

mercurial/hgweb/webcommands.py

@@ -865,6 +865,7 b' def annotate(web, req, tmpl):'
     fctx = webutil.filectx(web.repo, req)
     f = fctx.path()
     parity = paritygen(web.stripecount)
+    ishead = fctx.filerev() in fctx.filelog().headrevs()
 
     # parents() is called once per line and several lines likely belong to
     # same revision. So it is worth caching.
@@ -927,6 +928,7 b' def annotate(web, req, tmpl):'
                 symrev=webutil.symrevorshortnode(req, fctx),
                 rename=webutil.renamelink(fctx),
                 permissions=fctx.manifest().flags(f),
+                ishead=int(ishead),
                 **webutil.commonentry(web.repo, fctx))
 
 @webcommand('filelog')

mercurial/templates/gitweb/fileannotate.tmpl

@@ -66,10 +66,15 b' annotate |'
 </div>
 <div class="page_body">
 <table>
-<tbody>
+<tbody class="sourcelines"
+       data-logurl="{url|urlescape}log/{symrev}/{file|urlescape}"
+       data-selectabletag="TR"
+       data-ishead="{ishead}">
 {annotate%annotateline}
 </tbody>
 </table>
 </div>
 
+<script type="text/javascript" src="{staticurl|urlescape}followlines.js"></script>
+
 {footer}

mercurial/templates/paper/fileannotate.tmpl

@@ -73,7 +73,10 b''
  <th class="line">&nbsp;&nbsp;line source</th>
 </tr>
 </thead>
-<tbody class="stripes2">
+<tbody class="stripes2 sourcelines"
+       data-logurl="{url|urlescape}log/{symrev}/{file|urlescape}"
+       data-selectabletag="TR"
+       data-ishead="{ishead}">
   {annotate%annotateline}
 </tbody>
 </table>
@@ -81,4 +84,6 b''
 </div>
 </div>
 
+<script type="text/javascript" src="{staticurl|urlescape}followlines.js"></script>
+
 {footer}

mercurial/templates/static/style-gitweb.css

@@ -177,10 +177,12 b' pre.sourcelines.stripes > span:target {'
 }
 
 /* Followlines */
+div.page_body table tbody.sourcelines > tr.followlines-select:hover,
 div.page_body pre.sourcelines > span.followlines-select:hover {
   cursor: cell;
 }
 
+tbody.sourcelines > tr.followlines-selected,
 pre.sourcelines > span.followlines-selected {
   background-color: #99C7E9 !important;
 }

mercurial/templates/static/style-paper.css

@@ -280,10 +280,12 b' td.annotate:hover div.annotate-info { di'
   background-color: #bfdfff;
 }
 
+div.overflow table tbody.sourcelines > tr.followlines-select:hover,
 div.overflow pre.sourcelines > span.followlines-select:hover {
   cursor: cell;
 }
 
+tbody.sourcelines > tr.followlines-selected,
 pre.sourcelines > span.followlines-selected {
   background-color: #99C7E9;
 }

tests/test-hgweb.t

@@ -340,7 +340,7 b' static file'
 
   $ get-with-headers.py --twice localhost:$HGPORT 'static/style-gitweb.css' - date etag server
   200 Script output follows
-  content-length: 8349
+  content-length: 8463
   content-type: text/css
   
   body { font-family: sans-serif; font-size: 12px; border:solid #d9d8d1; border-width:1px; margin:10px; background: white; color: black; }
@@ -522,10 +522,12 b' static file'
   }
   
   /* Followlines */
+  div.page_body table tbody.sourcelines > tr.followlines-select:hover,
   div.page_body pre.sourcelines > span.followlines-select:hover {
     cursor: cell;
   }
   
+  tbody.sourcelines > tr.followlines-selected,
   pre.sourcelines > span.followlines-selected {
     background-color: #99C7E9 !important;
   }

tests/test-highlight.t

@@ -292,7 +292,10 b' hgweb fileannotate, html'
    <th class="line">&nbsp;&nbsp;line source</th>
   </tr>
   </thead>
-  <tbody class="stripes2">
+  <tbody class="stripes2 sourcelines"
+         data-logurl="/log/tip/primes.py"
+         data-selectabletag="TR"
+         data-ishead="1">
     
   <tr id="l1" class="thisrev">
   <td class="annotate parity0">
@@ -829,6 +832,8 b' hgweb fileannotate, html'
   </div>
   </div>
   
+  <script type="text/javascript" src="/static/followlines.js"></script>
+  
   
   
   </body>