editpage: Avoid storing accidental state changes when previewing pages.

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

diff --git a/IkiWiki/Plugin/editpage.pm b/IkiWiki/Plugin/editpage.pm
index 670eedfd97699eee7b3eca3ce112cda5944d3d09..3d731d399f34e9b857616135574727b24abb1757 100644 (file)
--- a/IkiWiki/Plugin/editpage.pm
+++ b/IkiWiki/Plugin/editpage.pm
@@ -153,6 +153,7 @@ sub cgi_editpage ($$) {
                        noimageinline => 1,
                        linktext => "FormattingHelp"));
        
+       my $previewing=0;
        if ($form->submitted eq "Cancel") {
                if ($form->field("do") eq "create" && defined $from) {
                        redirect($q, urlto($from, undef, 1));
@@ -166,11 +167,11 @@ sub cgi_editpage ($$) {
                exit;
        }
        elsif ($form->submitted eq "Preview") {
+               $previewing=1;
+
                my $new=not exists $pagesources{$page};
-               if ($new) {
-                       # temporarily record its type
-                       $pagesources{$page}=$page.".".$type;
-               }
+               # temporarily record its type
+               $pagesources{$page}=$page.".".$type if $new;
                my %wasrendered=map { $_ => 1 } @{$renderedfiles{$page}};
 
                my $content=$form->field('editcontent');
@@ -195,18 +196,17 @@ sub cgi_editpage ($$) {
                });
                $form->tmpl_param("page_preview", $preview);
                
-               if ($new) {
-                       delete $pagesources{$page};
-               }
-
                # Previewing may have created files on disk.
                # Keep a list of these to be deleted later.
                my %previews = map { $_ => 1 } @{$wikistate{editpage}{previews}};
                foreach my $f (@{$renderedfiles{$page}}) {
                        $previews{$f}=1 unless $wasrendered{$f};
                }
+
+               # Throw out any other state changes made during previewing,
+               # and save the previews list.
+               loadindex();
                @{$wikistate{editpage}{previews}} = keys %previews;
-               $renderedfiles{$page}=[keys %wasrendered];
                saveindex();
        }
        elsif ($form->submitted eq "Save Page") {
@@ -255,7 +255,7 @@ sub cgi_editpage ($$) {
                        if (! @page_locs) {
                                # hmm, someone else made the page in the
                                # meantime?
-                               if ($form->submitted eq "Preview") {
+                               if ($previewing) {
                                        # let them go ahead with the edit
                                        # and resolve the conflict at save
                                        # time
@@ -312,7 +312,10 @@ sub cgi_editpage ($$) {
                        $form->title(sprintf(gettext("editing %s"), pagetitle($page)));
                }
                
-               showform($form, \@buttons, $session, $q, forcebaseurl => $baseurl);
+               showform($form, \@buttons, $session, $q,
+                       forcebaseurl => $baseurl,
+                       ($previewing ? (page => $page) : ()),
+               );
        }
        else {
                # save page
@@ -329,7 +332,8 @@ sub cgi_editpage ($$) {
                        $form->field(name => "page", type => 'hidden');
                        $form->field(name => "type", type => 'hidden');
                        $form->title(sprintf(gettext("editing %s"), $page));
-                       showform($form, \@buttons, $session, $q, forcebaseurl => $baseurl);
+                       showform($form, \@buttons, $session, $q,
+                               forcebaseurl => $baseurl);
                        exit;
                }
                elsif ($form->field("do") eq "create" && $exists) {
@@ -343,7 +347,8 @@ sub cgi_editpage ($$) {
                                value => readfile("$config{srcdir}/$file").
                                         "\n\n\n".$form->field("editcontent"),
                                force => 1);
-                       showform($form, \@buttons, $session, $q, forcebaseurl => $baseurl);
+                       showform($form, \@buttons, $session, $q,
+                               forcebaseurl => $baseurl);
                        exit;
                }