poll: Add expandable option to allow users to easily add new choices to a poll.

[ikiwiki.git] / IkiWiki / Plugin / poll.pm

diff --git a/IkiWiki/Plugin/poll.pm b/IkiWiki/Plugin/poll.pm
index 2773486a6c69560fdd0a2236607b800dc88b15e6..32756a5712301cb6977f498dd61d99ebea054d71 100644 (file)
--- a/IkiWiki/Plugin/poll.pm
+++ b/IkiWiki/Plugin/poll.pm
@@ -23,11 +23,13 @@ sub getsetup () {
 
 my %pagenum;
 sub preprocess (@) {
-       my %params=(open => "yes", total => "yes", percent => "yes", @_);
+       my %params=(open => "yes", total => "yes", percent => "yes",
+               expandable => "no", @_);
 
        my $open=IkiWiki::yesno($params{open});
        my $showtotal=IkiWiki::yesno($params{total});
        my $showpercent=IkiWiki::yesno($params{percent});
+       my $expandable=IkiWiki::yesno($params{expandable});
        $pagenum{$params{page}}++;
 
        my %choices;
@@ -74,6 +76,19 @@ sub preprocess (@) {
                        $ret.="</form>\n";
                }
        }
+       
+       if ($expandable && $open && exists $config{cgiurl}) {
+               $ret.="<p>\n";
+               $ret.="<form method=\"POST\" action=\"".IkiWiki::cgiurl()."\">\n";
+               $ret.="<input type=\"hidden\" name=\"do\" value=\"poll\" />\n";
+               $ret.="<input type=\"hidden\" name=\"num\" value=\"$pagenum{$params{page}}\" />\n";
+               $ret.="<input type=\"hidden\" name=\"page\" value=\"$params{page}\" />\n";
+               $ret.=gettext("Write in").": <input name=\"choice\" size=50 />\n";
+               $ret.="<input type=\"submit\" value=\"".gettext("vote")."\" />\n";
+               $ret.="</form>\n";
+               $ret.="</p>\n";
+       }
+
        if ($showtotal) {
                $ret.="<span>".gettext("Total votes:")." $total</span>\n";
        }
@@ -85,7 +100,7 @@ sub sessioncgi ($$) {
        my $session=shift;
        if (defined $cgi->param('do') && $cgi->param('do') eq "poll") {
                my $choice=decode_utf8($cgi->param('choice'));
-               if (! defined $choice) {
+               if (! defined $choice || not length $choice) {
                        error("no choice specified");
                }
                my $num=$cgi->param('num');
@@ -118,7 +133,14 @@ sub sessioncgi ($$) {
                        my $params=shift;
                        return "\\[[$prefix $params]]" if $escape;
                        if (--$num == 0) {
-                               $params=~s/(^|\s+)(\d+)\s+"?\Q$choice\E"?(\s+|$)/$1.($2+1)." \"$choice\"".$3/se;
+                               if ($params=~s/(^|\s+)(\d+)\s+"?\Q$choice\E"?(\s+|$)/$1.($2+1)." \"$choice\"".$3/se) {
+                               }
+                               elsif ($params=~/expandable=(\w+)/
+                                   & &IkiWiki::yesno($1)) {
+                                       $choice=~s/["\]\n\r]//g;
+                                       $params.=" 1 \"$choice\""
+                                               if length $choice;
+                               }
                                if (defined $oldchoice) {
                                        $params=~s/(^|\s+)(\d+)\s+"?\Q$oldchoice\E"?(\s+|$)/$1.($2-1 >=0 ? $2-1 : 0)." \"$oldchoice\"".$3/se;
                                }