$filearea = document_services::PAGE_IMAGE_READONLY_FILEAREA;
}
foreach ($pages as $id => $pagefile) {
$index = count($response->pages);
$page = new stdClass();
$comments = page_editor::get_comments($grade->id, $index, $draft);
$page->url = moodle_url::make_pluginfile_url($context->id, 'assignfeedback_editpdf', $filearea, $grade->id, '/', $pagefile->get_filename())->out();
$page->comments = $comments;
if ($imageinfo = $pagefile->get_imageinfo()) {
$page->width = $imageinfo['width'];
$page->height = $imageinfo['height'];
} else {
$page->width = 0;
$page->height = 0;
}
$annotations = page_editor::get_annotations($grade->id, $index, $draft);
$page->annotations = $annotations;
array_push($response->pages, $page);
}
echo json_encode($response);
die;
} else {
if ($action == 'savepage') {
require_capability('mod/assign:grade', $context);
$response = new stdClass();
$response->errors = array();
$grade = $assignment->get_user_grade($userid, true, $attemptnumber);
$pagejson = required_param('page', PARAM_RAW);
$page = json_decode($pagejson);
$index = required_param('index', PARAM_INT);
$added = page_editor::set_comments($grade->id, $index, $page->comments);
/**
* Check to see if the grade feedback for the pdf has been modified.
*
* @param stdClass $grade Grade object.
* @param stdClass $data Data from the form submission (not used).
* @return boolean True if the pdf has been modified, else false.
*/
public function is_feedback_modified(stdClass $grade, stdClass $data)
{
global $USER;
$pagenumbercount = document_services::page_number_for_attempt($this->assignment, $grade->userid, $grade->attemptnumber);
for ($i = 0; $i < $pagenumbercount; $i++) {
// Select all annotations.
$draftannotations = page_editor::get_annotations($grade->id, $i, true);
$nondraftannotations = page_editor::get_annotations($grade->id, $i, false);
// Check to see if the count is the same.
if (count($draftannotations) != count($nondraftannotations)) {
// The count is different so we have a modification.
return true;
} else {
$matches = 0;
// Have a closer look and see if the draft files match all the non draft files.
foreach ($nondraftannotations as $ndannotation) {
foreach ($draftannotations as $dannotation) {
foreach ($ndannotation as $key => $value) {
if ($key != 'id' && $value != $dannotation->{$key}) {
continue 2;
}
}
$matches++;
}
}
if ($matches !== count($nondraftannotations)) {
return true;
}
}
// Select all comments.
$draftcomments = page_editor::get_comments($grade->id, $i, true);
$nondraftcomments = page_editor::get_comments($grade->id, $i, false);
if (count($draftcomments) != count($nondraftcomments)) {
return true;
} else {
// Go for a closer inspection.
$matches = 0;
foreach ($nondraftcomments as $ndcomment) {
foreach ($draftcomments as $dcomment) {
foreach ($ndcomment as $key => $value) {
if ($key != 'id' && $value != $dcomment->{$key}) {
continue 2;
}
}
$matches++;
}
}
if ($matches !== count($nondraftcomments)) {
return true;
}
}
}
return false;
}
public function test_page_editor()
{
$assign = $this->create_assign_and_submit_pdf();
$this->setUser($this->teachers[0]);
$grade = $assign->get_user_grade($this->students[0]->id, true);
$notempty = page_editor::has_annotations_or_comments($grade->id, false);
$this->assertFalse($notempty);
$comment = new comment();
$comment->rawtext = 'Comment text';
$comment->width = 100;
$comment->x = 100;
$comment->y = 100;
$comment->colour = 'red';
$comment2 = new comment();
$comment2->rawtext = 'Comment text 2';
$comment2->width = 100;
$comment2->x = 200;
$comment2->y = 100;
$comment2->colour = 'clear';
page_editor::set_comments($grade->id, 0, array($comment, $comment2));
$annotation = new annotation();
$annotation->path = '';
$annotation->x = 100;
$annotation->y = 100;
$annotation->endx = 200;
$annotation->endy = 200;
$annotation->type = 'line';
$annotation->colour = 'red';
$annotation2 = new annotation();
$annotation2->path = '';
$annotation2->x = 100;
$annotation2->y = 100;
$annotation2->endx = 200;
$annotation2->endy = 200;
$annotation2->type = 'rectangle';
$annotation2->colour = 'yellow';
page_editor::set_annotations($grade->id, 0, array($annotation, $annotation2));
$notempty = page_editor::has_annotations_or_comments($grade->id, false);
// Still empty because all edits are still drafts.
$this->assertFalse($notempty);
$comments = page_editor::get_comments($grade->id, 0, false);
$this->assertEmpty($comments);
$comments = page_editor::get_comments($grade->id, 0, true);
$this->assertEquals(count($comments), 2);
$annotations = page_editor::get_annotations($grade->id, 0, false);
$this->assertEmpty($annotations);
$annotations = page_editor::get_annotations($grade->id, 0, true);
$this->assertEquals(count($annotations), 2);
$comment = reset($comments);
$annotation = reset($annotations);
page_editor::remove_comment($comment->id);
page_editor::remove_annotation($annotation->id);
$comments = page_editor::get_comments($grade->id, 0, true);
$this->assertEquals(count($comments), 1);
$annotations = page_editor::get_annotations($grade->id, 0, true);
$this->assertEquals(count($annotations), 1);
page_editor::release_drafts($grade->id);
$notempty = page_editor::has_annotations_or_comments($grade->id, false);
$this->assertTrue($notempty);
page_editor::unrelease_drafts($grade->id);
$notempty = page_editor::has_annotations_or_comments($grade->id, false);
$this->assertFalse($notempty);
}
/**
* Check to see if the grade feedback for the pdf has been modified.
*
* @param stdClass $grade Grade object.
* @param stdClass $data Data from the form submission (not used).
* @return boolean True if the pdf has been modified, else false.
*/
public function is_feedback_modified(stdClass $grade, stdClass $data)
{
// We only need to know if the source user's PDF has changed. If so then all
// following users will have the same status. If it's only an individual annotation
// then only one user will come through this method.
// Source user id is only added to the form if there was a pdf.
if (!empty($data->editpdf_source_userid)) {
$sourceuserid = $data->editpdf_source_userid;
// Retrieve the grade information for the source user.
$sourcegrade = $this->assignment->get_user_grade($sourceuserid, true, $grade->attemptnumber);
$pagenumbercount = document_services::page_number_for_attempt($this->assignment, $sourceuserid, $sourcegrade->attemptnumber);
for ($i = 0; $i < $pagenumbercount; $i++) {
// Select all annotations.
$draftannotations = page_editor::get_annotations($sourcegrade->id, $i, true);
$nondraftannotations = page_editor::get_annotations($grade->id, $i, false);
// Check to see if the count is the same.
if (count($draftannotations) != count($nondraftannotations)) {
// The count is different so we have a modification.
return true;
} else {
$matches = 0;
// Have a closer look and see if the draft files match all the non draft files.
foreach ($nondraftannotations as $ndannotation) {
foreach ($draftannotations as $dannotation) {
foreach ($ndannotation as $key => $value) {
if ($key != 'id' && $value != $dannotation->{$key}) {
continue 2;
}
}
$matches++;
}
}
if ($matches !== count($nondraftannotations)) {
return true;
}
}
// Select all comments.
$draftcomments = page_editor::get_comments($sourcegrade->id, $i, true);
$nondraftcomments = page_editor::get_comments($grade->id, $i, false);
if (count($draftcomments) != count($nondraftcomments)) {
return true;
} else {
// Go for a closer inspection.
$matches = 0;
foreach ($nondraftcomments as $ndcomment) {
foreach ($draftcomments as $dcomment) {
foreach ($ndcomment as $key => $value) {
if ($key != 'id' && $value != $dcomment->{$key}) {
continue 2;
}
}
$matches++;
}
}
if ($matches !== count($nondraftcomments)) {
return true;
}
}
}
}
return false;
}
/**
* Test that modifying the annotated pdf form return true when modified
* and false when not modified.
*/
public function test_is_feedback_modified()
{
global $DB;
$assign = $this->create_assign_and_submit_pdf();
$this->setUser($this->teachers[0]);
$grade = $assign->get_user_grade($this->students[0]->id, true);
$notempty = page_editor::has_annotations_or_comments($grade->id, false);
$this->assertFalse($notempty);
$comment = new comment();
$comment->rawtext = 'Comment text';
$comment->width = 100;
$comment->x = 100;
$comment->y = 100;
$comment->colour = 'red';
page_editor::set_comments($grade->id, 0, array($comment));
$annotations = array();
$annotation = new annotation();
$annotation->path = '';
$annotation->x = 100;
$annotation->y = 100;
$annotation->endx = 200;
$annotation->endy = 200;
$annotation->type = 'line';
$annotation->colour = 'red';
array_push($annotations, $annotation);
page_editor::set_annotations($grade->id, 0, $annotations);
$plugin = $assign->get_feedback_plugin_by_type('editpdf');
$data = new stdClass();
$data->editpdf_source_userid = $this->students[0]->id;
$this->assertTrue($plugin->is_feedback_modified($grade, $data));
$plugin->save($grade, $data);
$annotation = new annotation();
$annotation->gradeid = $grade->id;
$annotation->pageno = 0;
$annotation->path = '';
$annotation->x = 100;
$annotation->y = 100;
$annotation->endx = 200;
$annotation->endy = 200;
$annotation->type = 'rectangle';
$annotation->colour = 'yellow';
$yellowannotationid = page_editor::add_annotation($annotation);
// Add a comment as well.
$comment = new comment();
$comment->gradeid = $grade->id;
$comment->pageno = 0;
$comment->rawtext = 'Second Comment text';
$comment->width = 100;
$comment->x = 100;
$comment->y = 100;
$comment->colour = 'red';
page_editor::add_comment($comment);
$this->assertTrue($plugin->is_feedback_modified($grade, $data));
$plugin->save($grade, $data);
// We should have two annotations.
$this->assertCount(2, page_editor::get_annotations($grade->id, 0, false));
// And two comments.
$this->assertCount(2, page_editor::get_comments($grade->id, 0, false));
// Add one annotation and delete another.
$annotation = new annotation();
$annotation->gradeid = $grade->id;
$annotation->pageno = 0;
$annotation->path = '100,100:105,105:110,100';
$annotation->x = 100;
$annotation->y = 100;
$annotation->endx = 110;
$annotation->endy = 105;
$annotation->type = 'pen';
$annotation->colour = 'black';
page_editor::add_annotation($annotation);
$annotations = page_editor::get_annotations($grade->id, 0, true);
page_editor::remove_annotation($yellowannotationid);
$this->assertTrue($plugin->is_feedback_modified($grade, $data));
$plugin->save($grade, $data);
// We should have two annotations.
$this->assertCount(2, page_editor::get_annotations($grade->id, 0, false));
// And two comments.
$this->assertCount(2, page_editor::get_comments($grade->id, 0, false));
// Add a comment and then remove it. Should not be considered as modified.
$comment = new comment();
$comment->gradeid = $grade->id;
$comment->pageno = 0;
$comment->rawtext = 'Third Comment text';
$comment->width = 400;
$comment->x = 57;
$comment->y = 205;
$comment->colour = 'black';
$comment->id = page_editor::add_comment($comment);
// We should now have three comments.
$this->assertCount(3, page_editor::get_comments($grade->id, 0, true));
// Now delete the newest record.
page_editor::remove_comment($comment->id);
// Back to two comments.
$this->assertCount(2, page_editor::get_comments($grade->id, 0, true));
// No modification.
$this->assertFalse($plugin->is_feedback_modified($grade, $data));
}
/**
* This function takes the combined pdf and embeds all the comments and annotations.
*
* This also moves the annotations and comments from drafts to not drafts. And it will
* copy all the images stored to the readonly area, so that they can be viewed online, and
* not be overwritten when a new submission is sent.
*
* @param int|\assign $assignment
* @param int $userid
* @param int $attemptnumber (-1 means latest attempt)
* @return stored_file
*/
public static function generate_feedback_document($assignment, $userid, $attemptnumber)
{
$assignment = self::get_assignment_from_param($assignment);
if (!$assignment->can_view_submission($userid)) {
\print_error('nopermission');
}
if (!$assignment->can_grade()) {
\print_error('nopermission');
}
// Need to generate the page images - first get a combined pdf.
$file = self::get_combined_pdf_for_attempt($assignment, $userid, $attemptnumber);
if (!$file) {
throw new \moodle_exception('Could not generate combined pdf.');
}
$tmpdir = \make_temp_directory('assignfeedback_editpdf/final/' . self::hash($assignment, $userid, $attemptnumber));
$combined = $tmpdir . '/' . self::COMBINED_PDF_FILENAME;
$file->copy_content_to($combined);
// Copy the file.
$pdf = new pdf();
$fs = \get_file_storage();
$stamptmpdir = \make_temp_directory('assignfeedback_editpdf/stamps/' . self::hash($assignment, $userid, $attemptnumber));
$grade = $assignment->get_user_grade($userid, true, $attemptnumber);
// Copy any new stamps to this instance.
if ($files = $fs->get_area_files($assignment->get_context()->id, 'assignfeedback_editpdf', 'stamps', $grade->id, "filename", false)) {
foreach ($files as $file) {
$filename = $stamptmpdir . '/' . $file->get_filename();
$file->copy_content_to($filename);
// Copy the file.
}
}
$pagecount = $pdf->set_pdf($combined);
$grade = $assignment->get_user_grade($userid, true, $attemptnumber);
page_editor::release_drafts($grade->id);
for ($i = 0; $i < $pagecount; $i++) {
$pdf->copy_page();
$comments = page_editor::get_comments($grade->id, $i, false);
$annotations = page_editor::get_annotations($grade->id, $i, false);
foreach ($comments as $comment) {
$pdf->add_comment($comment->rawtext, $comment->x, $comment->y, $comment->width, $comment->colour);
}
foreach ($annotations as $annotation) {
$pdf->add_annotation($annotation->x, $annotation->y, $annotation->endx, $annotation->endy, $annotation->colour, $annotation->type, $annotation->path, $stamptmpdir);
}
}
fulldelete($stamptmpdir);
$filename = self::get_downloadable_feedback_filename($assignment, $userid, $attemptnumber);
$filename = clean_param($filename, PARAM_FILE);
$generatedpdf = $tmpdir . '/' . $filename;
$pdf->save_pdf($generatedpdf);
$record = new \stdClass();
$record->contextid = $assignment->get_context()->id;
$record->component = 'assignfeedback_editpdf';
$record->filearea = self::FINAL_PDF_FILEAREA;
$record->itemid = $grade->id;
$record->filepath = '/';
$record->filename = $filename;
// Only keep one current version of the generated pdf.
$fs->delete_area_files($record->contextid, $record->component, $record->filearea, $record->itemid);
$file = $fs->create_file_from_pathname($record, $generatedpdf);
// Cleanup.
@unlink($generatedpdf);
@unlink($combined);
@rmdir($tmpdir);
self::copy_pages_to_readonly_area($assignment, $grade);
return $file;
}