Added a rescan hook.

[git.ikiwiki.info.git] / IkiWiki / Plugin / img.pm

diff --git a/IkiWiki/Plugin/img.pm b/IkiWiki/Plugin/img.pm
index 17a9367d3339145170256d44c734663f561e94ec..2375ead8968b6a9baf64ff8ac825dbde6a75b82d 100644 (file)
--- a/IkiWiki/Plugin/img.pm
+++ b/IkiWiki/Plugin/img.pm
@@ -5,18 +5,32 @@ package IkiWiki::Plugin::img;
 
 use warnings;
 use strict;
 
 use warnings;
 use strict;

-use IkiWiki 2.00;
+use IkiWiki 3.00;

 
 my %imgdefaults;
 
 
 my %imgdefaults;
 

-sub import { #{{{
+sub import {
+       hook(type => "getsetup", id => "img", call => \&getsetup);

        hook(type => "preprocess", id => "img", call => \&preprocess, scan => 1);
        hook(type => "preprocess", id => "img", call => \&preprocess, scan => 1);

-} #}}}
-
-sub preprocess (@) { #{{{
+}
+
+sub getsetup () {
+       return
+               plugin => {
+                       safe => 1,
+                       rebuild => undef,
+                       section => "widget",
+               },
+}
+
+sub preprocess (@) {

        my ($image) = $_[0] =~ /$config{wiki_file_regexp}/; # untaint
        my %params=@_;
 
        my ($image) = $_[0] =~ /$config{wiki_file_regexp}/; # untaint
        my %params=@_;
 

+       if (! defined $image) {
+               error("bad image filename");
+       }
+

        if (exists $imgdefaults{$params{page}}) {
                foreach my $key (keys %{$imgdefaults{$params{page}}}) {
                        if (! exists $params{$key}) {
        if (exists $imgdefaults{$params{page}}) {
                foreach my $key (keys %{$imgdefaults{$params{page}}}) {
                        if (! exists $params{$key}) {


@@ -25,7 +39,7 @@ sub preprocess (@) { #{{{
                }
        }
 
                }
        }
 

-       if (! exists $params{size}) {
+       if (! exists $params{size} || ! length $params{size}) {

                $params{size}='full';
        }
 
                $params{size}='full';
        }
 


@@ -34,13 +48,19 @@ sub preprocess (@) { #{{{
                return '';
        }
 
                return '';
        }
 

-       push @{$links{$params{page}}}, $image;
+       add_link($params{page}, $image);
+       add_depends($params{page}, $image);
+

        # optimisation: detect scan mode, and avoid generating the image
        if (! defined wantarray) {
                return;
        }
 
        my $file = bestlink($params{page}, $image);
        # optimisation: detect scan mode, and avoid generating the image
        if (! defined wantarray) {
                return;
        }
 
        my $file = bestlink($params{page}, $image);

+       my $srcfile = srcfile($file, 1);
+       if (! length $file || ! defined $srcfile) {
+               return htmllink($params{page}, $params{destpage}, $image);
+       }

 
        my $dir = $params{page};
        my $base = IkiWiki::basename($file);
 
        my $dir = $params{page};
        my $base = IkiWiki::basename($file);


@@ -49,46 +69,82 @@ sub preprocess (@) { #{{{
        error gettext("Image::Magick is not installed") if $@;
        my $im = Image::Magick->new;
        my $imglink;
        error gettext("Image::Magick is not installed") if $@;
        my $im = Image::Magick->new;
        my $imglink;

-       my $r;
+       my $r = $im->Read($srcfile);
+       error sprintf(gettext("failed to read %s: %s"), $file, $r) if $r;
+       
+       my ($dwidth, $dheight);

 
        if ($params{size} ne 'full') {
 
        if ($params{size} ne 'full') {

-               my ($w, $h) = ($params{size} =~ /^(\d+)x(\d+)$/);
-               error sprintf(gettext('bad size "%s"'), $params{size})
-                       unless (defined $w && defined $h);
-
-               my $outfile = "$config{destdir}/$dir/${w}x${h}-$base";
-               $imglink = "$dir/${w}x${h}-$base";
+               my ($w, $h) = ($params{size} =~ /^(\d*)x(\d*)$/);
+               error sprintf(gettext('wrong size format "%s" (should be WxH)'), $params{size})
+                       unless (defined $w && defined $h &&
+                               (length $w || length $h));

                
                

-               will_render($params{page}, $imglink);
-
-               if (-e $outfile && (-M srcfile($file) >= -M $outfile)) {
-                       $r = $im->Read($outfile);
-                       error sprintf(gettext("failed to read %s: %s"), $outfile, $r) if $r;
+               if ((length $w && $w > $im->Get("width")) ||
+                   (length $h && $h > $im->Get("height"))) {
+                       # resizing larger
+                       $imglink = $file;
+
+                       # don't generate larger image, just set display size
+                       if (length $w && length $h) {
+                               ($dwidth, $dheight)=($w, $h);
+                       }
+                       # avoid division by zero on 0x0 image
+                       elsif ($im->Get("width") == 0 || $im->Get("height") == 0) {
+                               ($dwidth, $dheight)=(0, 0);
+                       }
+                       # calculate unspecified size from the other one, preserving
+                       # aspect ratio
+                       elsif (length $w) {
+                               $dwidth=$w;
+                               $dheight=$w / $im->Get("width") * $im->Get("height");
+                       }
+                       elsif (length $h) {
+                               $dheight=$h;
+                               $dwidth=$h / $im->Get("height") * $im->Get("width");
+                       }

                }
                else {
                }
                else {

-                       $r = $im->Read(srcfile($file));
-                       error sprintf(gettext("failed to read %s: %s"), $file, $r) if $r;
-
-                       $r = $im->Resize(geometry => "${w}x${h}");
-                       error sprintf(gettext("failed to resize: %s"), $r) if $r;
+                       # resizing smaller
+                       my $outfile = "$config{destdir}/$dir/${w}x${h}-$base";
+                       $imglink = "$dir/${w}x${h}-$base";
+               
+                       will_render($params{page}, $imglink);

 
 

-                       # don't actually write file in preview mode
-                       if (! $params{preview}) {
-                               my @blob = $im->ImageToBlob();
-                               writefile($imglink, $config{destdir}, $blob[0], 1);
+                       if (-e $outfile && (-M $srcfile >= -M $outfile)) {
+                               $im = Image::Magick->new;
+                               $r = $im->Read($outfile);
+                               error sprintf(gettext("failed to read %s: %s"), $outfile, $r) if $r;

                        }
                        else {
                        }
                        else {

-                               $imglink = $file;
+                               ($dwidth, $dheight)=($w, $h);
+                               $r = $im->Resize(geometry => "${w}x${h}");
+                               error sprintf(gettext("failed to resize: %s"), $r) if $r;
+
+                               # don't actually write resized file in preview mode;
+                               # rely on width and height settings
+                               if (! $params{preview}) {
+                                       my @blob = $im->ImageToBlob();
+                                       writefile($imglink, $config{destdir}, $blob[0], 1);
+                               }
+                               else {
+                                       $imglink = $file;
+                               }

                        }
                        }

+                       
+                       $dwidth = $im->Get("width") unless defined $dwidth;
+                       $dheight = $im->Get("height") unless defined $dheight;

                }
        }
        else {
                }
        }
        else {

-               $r = $im->Read(srcfile($file));
-               error sprintf(gettext("failed to read %s: %s"), $file, $r) if $r;

                $imglink = $file;
                $imglink = $file;

+               $dwidth = $im->Get("width");
+               $dheight = $im->Get("height");
+       }
+       
+       if (! defined($dwidth) || ! defined($dheight)) {
+               error sprintf(gettext("failed to determine size of image %s"), $file)

        }
        }

-
-       add_depends($imglink, $params{page});

 
        my ($fileurl, $imgurl);
        if (! $params{preview}) {
 
        my ($fileurl, $imgurl);
        if (! $params{preview}) {


@@ -100,34 +156,54 @@ sub preprocess (@) { #{{{
                $imgurl="$config{url}/$imglink";
        }
 
                $imgurl="$config{url}/$imglink";
        }
 

-       if (! defined($im->Get("width")) || ! defined($im->Get("height"))) {
-               error sprintf(gettext("failed to determine size of image %s"), $file)
+       if (exists $params{class}) {
+               $params{class}.=" img";
+       }
+       else {
+               $params{class}="img";

        }
 
        }
 

+       my $attrs='';
+       foreach my $attr (qw{alt title class id hspace vspace}) {
+               if (exists $params{$attr}) {
+                       $attrs.=" $attr=\"$params{$attr}\"";
+               }
+       }
+       

        my $imgtag='<img src="'.$imgurl.
        my $imgtag='<img src="'.$imgurl.

-               '" alt="'.(exists $params{alt} ? $params{alt} : '').
-               '" width="'.$im->Get("width").
-               '" height="'.$im->Get("height").'"'.
-               (exists $params{title} ? ' title="'.$params{title}.'"' : '').
-               (exists $params{class} ? ' class="'.$params{class}.'"' : '').
-               (exists $params{id} ? ' id="'.$params{id}.'"' : '').
+               '" width="'.$dwidth.
+               '" height="'.$dheight.'"'.
+               $attrs.
+               (exists $params{align} && ! exists $params{caption} ? ' align="'.$params{align}.'"' : '').

                ' />';
 
                ' />';
 

-       if (! defined $params{link} || lc($params{link}) eq 'yes') {
-               $imgtag='<a href="'.$fileurl.'">'.$imgtag.'</a>';
+       my $link;
+       if (! defined $params{link}) {
+               $link=$fileurl;

        }
        elsif ($params{link} =~ /^\w+:\/\//) {
        }
        elsif ($params{link} =~ /^\w+:\/\//) {

-               $imgtag='<a href="'.$params{link}.'">'.$imgtag.'</a>';
+               $link=$params{link};
+       }
+
+       if (defined $link) {
+               $imgtag='<a href="'.$link.'">'.$imgtag.'</a>';

        }
        }

-       elsif (length bestlink($params{page}, $params{link})) {
-               add_depends($params{page}, $params{link});
-               $imgtag=htmllink($params{page}, $params{destpage},
-                       $params{link}, linktext => $imgtag,
-                       noimageinline => 1);
+       else {
+               my $b = bestlink($params{page}, $params{link});
+       
+               if (length $b) {
+                       add_depends($params{page}, $b, deptype("presence"));
+                       $imgtag=htmllink($params{page}, $params{destpage},
+                               $params{link}, linktext => $imgtag,
+                               noimageinline => 1,
+                       );
+               }

        }
 
        if (exists $params{caption}) {
        }
 
        if (exists $params{caption}) {

-               return '<table class="img">'.
+               return '<table class="img'.
+                       (exists $params{align} ? " align-$params{align}" : "").
+                       '">'.

                        '<caption>'.$params{caption}.'</caption>'.
                        '<tr><td>'.$imgtag.'</td></tr>'.
                        '</table>';
                        '<caption>'.$params{caption}.'</caption>'.
                        '<tr><td>'.$imgtag.'</td></tr>'.
                        '</table>';


@@ -135,6 +211,6 @@ sub preprocess (@) { #{{{
        else {
                return $imgtag;
        }
        else {
                return $imgtag;
        }

-} #}}}
+}

 
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