-
-$linktext
+
ENDLINK
}
- if ($explanation ne '') {
- $output .= '
'.$explanation.'
';
+ if ($exttool) {
+ if ($explanation ne '') {
+ $output .= '
'.$explanation.'
';
+ }
}
} else {
if ($uselink) {
@@ -273,7 +337,7 @@ sub handler {
my $url = $r->uri;
my ($is_ext,$brcrum,$absolute,$is_pdf,$exttool,$cdom,$cnum,$hostname,
- $linktext,$explanation,$width,$height);
+ $linktext,$explanation,$width,$height,$reuse);
for ($url){
s|^/adm/wrapper||;
@@ -284,6 +348,27 @@ sub handler {
if ($url =~ /\.pdf$/i) {
$is_pdf = 1;
+ } elsif (($is_ext) && ($env{'request.course.id'})) {
+ if ($env{'course.'.$env{'request.course.id'}.'.extresource'}) {
+ (my $selected,$reuse,$width,$height) = split(/:/,$env{'course.'.$env{'request.course.id'}.'.extresource'});
+ if ($selected eq 'tab') {
+ $is_ext = 'tab';
+ $width = '';
+ $height = '';
+ } elsif ($selected eq 'window') {
+ $is_ext = 'window';
+ unless ($width =~ /^\d+$/) {
+ $width = '';
+ }
+ unless ($height =~ /^\d+$/) {
+ $height = '';
+ }
+ } else {
+ $width = '';
+ $height = '';
+ $reuse = '';
+ }
+ }
} elsif ($url =~ m{^/adm/($match_domain)/($match_courseid)/(\d+)/ext\.tool$}) {
$cdom = $1;
$cnum = $2;
@@ -385,7 +470,7 @@ sub handler {
}
$r->print( wrapper($r,$url,$brcrum,$absolute,$is_ext,$is_pdf,$exttool,
- $linktext,$explanation,undef,$width,$height) );
+ $linktext,$explanation,undef,$width,$height,$reuse) );
} # not just the menu
@@ -412,7 +497,7 @@ described at http://www.lon-capa.org.
=over
-=item wrapper($r,$url,$brcrum,$absolute,$is_ext,$is_pdf,$exttool,$linktext,$explanation,$title,$width,$height)
+=item wrapper($r,$url,$brcrum,$absolute,$is_ext,$is_pdf,$exttool,$linktext,$explanation,$title,$width,$height,$reuse)
=over
@@ -422,8 +507,11 @@ request object
=item $url
-url to display by including in an iframe within a
-LON-CAPA page which has a standard LON-CAPA inline menu.
+url to display either by including in an iframe within a
+LON-CAPA page which has a standard LON-CAPA inline menu,
+or in some cases launched in a separate tab or window,
+launched via a link in a LON-CAPA page with standard inline
+menu.
=item $brcrum
@@ -452,12 +540,32 @@ in Firefox 23 and later, when serving fr
=item $is_ext
-true if URL is for an external resource.
+true if URL is for an external resource. Default true value
+is 1 (display in iframe, unless $uselink is true).
+If external resource is to be displayed in a tab,
+value of $is_ext will be tab, if to be displayed in a pop-up window,
+value of $is_ext will be window.
=item $is_pdf
true if URL is for a PDF (based on file extension).
+=item $exttool
+
+If URL is for an External Tool, will contain the target type: iframe, window or tab.
+
+=item $linktext
+
+optional. If URL is for an External Tool, and target type is window or tab,
+then the link text may be an option set in the course for each tool instance,
+or may be a default defined in the domain for all instances of the tool.
+
+=item $explanation
+
+optional. If URL is for an External Tool, and target type is window or tab,
+then the explanation is an option set in the course for each tool instance,
+or may be a default defined in the domain for all instances of the tool.
+
=item $title
optional. If wrapped item is a PDF, and $clientmobile is true,
@@ -466,12 +574,55 @@ above the link, but if not provided as a
will be used, otherwise, the filename will be displayed (unless
hidden URL set for the resource).
+=item $width
+
+optional. If URL is for an External Tool, and target type is window,
+then a default width may have been defined in the domain for all instances of
+the tool. If so, that width will be used for the window opened (via a link)
+to launch the external tool. If the URL is for an External Resource, and
+$is_ext is window, then a default width (px) may have been defined in the current
+course for all external resource instances.
+
+=item $height
+
+optional. If URL is for an External Tool, and target type is window,
+then a default height may have been defined in the domain for all instances of
+the tool. If so, that height will be used for the window opened (via a link)
+to launch the external tool. If the URL is for an External Resource, and
+$is_ext is window, then a default height (px) may have been defined in the current
+course for all external resource instances.
+
+=item $reuse
+
+optional. If the URL is for an External Resource, and $is_ext is tab or window,
+then $reuse will be true if the same tab or window is to be reused for display
+of all external resource instances in a a course.
+
=back
Returns markup for the entire page.
=item handler()
+Content handler for requests for: /adm/wrapper/...
+used for content to be displayed in an iframe, or launched in a separate tab
+or window via a link. The target URL is extracted from the requested URL, by
+removing the /adm/wrapper prefix.
+
+The target URL will typically be a PDF served from the current server, an
+external resource URL served from a different server, or an external tool
+(from an LTI Provider) launched from LON-CAPA (as LTI Consumer) and launched
+via a link.
+
+If the request included forceedit in the query string, and the requester has
+rights to modify course content, then the editor will be displayed to allow
+changes to be made to the resource (e.g., change the URL of the external resource,
+or change the setting for the external tool instance).
+
+If not in edit mode, then the wrapper() subroutine will be called to generate the
+standard LON-CAPA inline menu, and then either a link to launch a separate tab or
+window, or an iframe to display the content inline.
+
=back
=cut