When configuring a read-only textbox, allow copying (bug #736665)

When configuring a textbox containing a read-only artefact (or one
which has copies in other blocks), the user will often want to
create a new copy of the note instead of reusing the note.  This
patch adds a 'copy' link beside the read-only message, which will
unhide the tinymce box and set a flag to ensure that a new html
artefact gets created on submission.

Change-Id: I5214c5b0ae615cd9f32dfc5c71efc942b5961756
Signed-off-by: Richard Mansfield <richard.mansfield@catalyst.net.nz>

htdocs/artefact/internal/blocktype/textbox/lang/en.utf8/blocktype.textbox.php

@@ -34,3 +34,4 @@ $string['usecontentfromanothertextbox'] = 'Use content from another text box';
 $string['textusedinotherblocks'] = 'If you edit the text of this block, it will also be changed in %s other block(s) where it appears.';
 $string['managealltextboxcontent'] = 'Manage all textbox content';
 $string['readonlymessage'] = 'The text you have selected is not editable on this page.';
+$string['makeacopy'] = 'Make a copy';

htdocs/artefact/internal/blocktype/textbox/lang/en.utf8/help/forms/instconf.otherblocksmsg.html

@@ -8,3 +8,5 @@ note is contained in your Notes area under the Content menu.</p>
 other group or institution members may have inserted this text inside
 their own pages.  If you edit it here, it will be updated on their
 pages too.</p>
+<p>You can also make a copy of the selected note, and then
+when you edit it, the changes will only affect this page.</p>

htdocs/artefact/internal/blocktype/textbox/lang/en.utf8/help/forms/instconf.readonlymsg.html

@@ -7,4 +7,6 @@ groups inside your own personal page.</p>
 your page whenever it is changed by the owner.  If you want to update
 it yourself, you must do that through a page with the same owner as
 the note.</p>
+<p>Alternatively, you may take your own copy of this content, and then
+when you edit it, the changes will only affect this page.</p>
 

htdocs/artefact/internal/blocktype/textbox/lib.php

@@ -116,6 +116,7 @@ function updateTextContent(a) {
     setNodeAttribute('instconf_title', 'value', a.title);
     tinyMCE.activeEditor.setContent(a.description);
     $('instconf_textreadonly_display').innerHTML = a.safedescription;
+    $('instconf_makecopy').checked = false;
     if (a.editable == 1) {
         addElementClass('instconf_textreadonly_container', 'hidden');
         addElementClass('instconf_readonlymsg_container', 'hidden');
@@ -151,6 +152,21 @@ connect('chooseartefactlink', 'onclick', function(e) {
     toggleElementClass('hidden', 'instconf_artefactid_container');
     toggleElementClass('hidden', 'instconf_managenotes_container');
 });
+forEach(getElementsByTagAndClassName('a', 'copytextboxnote', 'instconf'), function(link) {
+    connect(link, 'onclick', function(e) {
+        e.stop();
+        forEach(getElementsByTagAndClassName('input', 'radio', 'artefactid_data'), function(i) {
+            if (i.checked) {
+                i.checked = false;
+            }
+        });
+        $('instconf_makecopy').checked = true;
+        addElementClass('instconf_textreadonly_container', 'hidden');
+        addElementClass('instconf_readonlymsg_container', 'hidden');
+        addElementClass('instconf_otherblocksmsg_container', 'hidden');
+        removeElementClass('instconf_text_container', 'hidden');
+    });
+});
 EOF;
     }
 
@@ -210,14 +226,16 @@ EOF;
             'otherblocksmsg' => array(
                 'type' => 'html',
                 'class' => 'message info' . (($otherblockcount && !$readonly) ? '' : ' hidden'),
-                'value' => $otherblocksmsg,
+                'value' => $otherblocksmsg
+                    . ' <a class="copytextboxnote nojs-hidden-inline" href="">' . get_string('makeacopy', 'blocktype.internal/textbox') . '</a>',
                 'help' => true,
             ),
             // Add a message whenever this text cannot be edited here
             'readonlymsg' => array(
                 'type' => 'html',
                 'class' => 'message info' . ($readonly ? '' : ' hidden'),
-                'value' => get_string('readonlymessage', 'blocktype.internal/textbox'),
+                'value' => get_string('readonlymessage', 'blocktype.internal/textbox')
+                    . ' <a class="copytextboxnote nojs-hidden-inline" href="">' . get_string('makeacopy', 'blocktype.internal/textbox') . '</a>',
                 'help' => true,
             ),
             'text' => array(
@@ -235,6 +253,11 @@ EOF;
                 'width' => '100%',
                 'value' => '<div id="instconf_textreadonly_display">' . $text . '</div>',
             ),
+            'makecopy' => array(
+                'type' => 'checkbox',
+                'class' => 'hidden',
+                'defaultvalue' => false,
+            ),
             'chooseartefact' => array(
                 'type'  => 'html',
                 'class' => 'nojs-hidden-block',
@@ -260,7 +283,7 @@ EOF;
             $data[$f] = $view->get($f);
         }
 
-        if (empty($values['artefactid'])) {
+        if (empty($values['artefactid']) || $values['makecopy']) {
             // The artefact title will be the same as the block title when the
             // artefact is first created, or, if there's no block title, generate
             // 'Note (1)', 'Note (2)', etc.  After that, the artefact title can't
@@ -307,6 +330,7 @@ EOF;
         unset($values['otherblocksmsg']);
         unset($values['readonlymsg']);
         unset($values['textreadonly']);
+        unset($values['makecopy']);
         unset($values['chooseartefact']);
         unset($values['managenotes']);