From ea3027377f1fe62e98da6a0a890fcc6f709389c3 Mon Sep 17 00:00:00 2001
From: Owen Leonard <oleonard@myacpl.org>
Date: Tue, 2 Feb 2021 14:10:49 +0000
Subject: [PATCH] Bug 27594: Add access to public download link for
 publicly-accessible uploads

This patch adds a link to the display of publicly-accessible uploads so
that the user can copy the public link. This will hopefully lead to
easier use of sound file uploads in the Audio Alerts system.

To test, apply the patch and go to Tools -> Upload.

- If necessary, upload a file with the "Allow public downloads"
  checkbox checked.
- Upon upload you should be shown the results of your upload in a table
  with the file details.
- In the "Public" column you should see that "Yes" is a link.
  - When you hover your mouse over the link you should see a tooltip,
    "Copy link to this file."
  - When you click the link the tooltip should say "Link copied to the
    clipboard."
  - Verify that the correct link has been copied.
- Test uploading a file which is not publicly-accessible.
  - Confirm that the information in the "Public" column says "No" and is
    not a link.

Signed-off-by: David Nind <david@davidnind.com>
---
 .../intranet-tmpl/prog/en/modules/tools/upload.tt    | 20 +++++++++++++++++++-
 koha-tmpl/intranet-tmpl/prog/js/staff-global.js      | 15 ++++++++++++++-
 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/tools/upload.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/tools/upload.tt
index 027f66de74..2b2f38160c 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/tools/upload.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/tools/upload.tt
@@ -178,7 +178,13 @@
         <td>[% record.hashvalue | html %]</td>
         <td>[% record.uploadcategorycode | html %]</td>
         [% IF !plugin %]
-            <td>[% IF record.public %]Yes[% ELSE %]No[% END %]</td>
+            <td>
+                [% IF record.public %]
+                    <a href="[% Koha.Preference('OPACBaseURL') | url %]/cgi-bin/koha/opac-retrieve-file.pl?id=[% record.hashvalue | uri %]" class="get-file" data-toggle="tooltip" title="Copy link to this file"><i class="fa fa-link" aria-hidden="true"></i> Yes</a>
+                [% ELSE %]
+                    No
+                [% END %]
+            </td>
             <td>[% IF record.permanent %]No[% ELSE %]Yes[% END %]</td>
         [% END %]
         <td class="actions">
@@ -429,6 +435,18 @@
                 e.preventDefault();
                 SubmitMe('new');
             });
+
+            $(".get-file").on("click", function(e){
+                e.preventDefault();
+                copyToClipboard( $(this).attr("href") );
+                $(this).attr("data-original-title", _( "Link copied to the clipboard" ) )
+                    .tooltip("show");
+            });
+            $(".get-file").tooltip({
+                delay: { "show": 100, "hide": 500 }
+            }).on("hidden.bs.tooltip", function(){
+                $(this).attr("data-original-title", _( "Copy link to this file" ) );
+            });
         });
     </script>
 [% END %]
diff --git a/koha-tmpl/intranet-tmpl/prog/js/staff-global.js b/koha-tmpl/intranet-tmpl/prog/js/staff-global.js
index 4f06af9465..7411567556 100644
--- a/koha-tmpl/intranet-tmpl/prog/js/staff-global.js
+++ b/koha-tmpl/intranet-tmpl/prog/js/staff-global.js
@@ -1,5 +1,5 @@
 /* global shortcut delCookie delBasket Sticky */
-/* exported paramOfUrl addBibToContext delBibToContext */
+/* exported paramOfUrl addBibToContext delBibToContext copyToClipboard */
 if ( KOHA === undefined ) var KOHA = {};
 
 function _(s) { return s; } // dummy function for gettext
@@ -358,3 +358,16 @@ function saveOrClearSimpleSearchParams() {
     localStorage.setItem('cat_search_pulldown_selection', pulldown_selection );
     localStorage.setItem('searchbox_value', searchbox_value );
 }
+
+// https://hackernoon.com/copying-text-to-clipboard-with-javascript-df4d4988697f
+function copyToClipboard( text ){
+    var el = document.createElement("textarea");  // Create a <textarea> element
+    el.value = text;                                 // Set its value to the string that you want copied
+    el.setAttribute("readonly", "");                // Make it readonly to be tamper-proof
+    el.style.position = "absolute";
+    el.style.left = "-9999px";                      // Move outside the screen to make it invisible
+    document.body.appendChild(el);                  // Append the <textarea> element to the HTML document
+    el.select();                                    // Select the <textarea> content
+    document.execCommand("copy");                   // Copy - only works as a result of a user action (e.g. click events)
+    document.body.removeChild(el);                  // Remove the <textarea> element
+}
-- 
2.11.0