PHP can_use_richtext_editor函数代码示例

 function __construct($courseid = null, $submitted_data = null)
 {
     // Not tied to a course
     if ($courseid) {
         $this->courseid = $courseid;
     }
     // Strip users from that data, if available
     if ($submitted_data) {
         $ids = $this->get_user_data($submitted_data);
         $users = $ids ? get_records_select('block_courseprefs_users', 'id IN (' . implode(',', $ids) . ')') : array();
         $this->users = $this->get_section_users($submitted_data) + $users;
     }
     // Only here if the developers want a customizeed email.
     if ($this->usehtmleditor = can_use_richtext_editor()) {
         $this->defaultformat = FORMAT_HTML;
     } else {
         $this->defaultformat = FORMAT_MOODLE;
     }
     // Users coming here one way or the other.
     $this->submit = optional_param('form_submit') ? true : false;
     if ($this->submitted()) {
         $this->setup_referral($submitted_data);
     }
 }

                $cell2 = get_string('nogroupmembers', 'block_quickmail');
            } else {
                $cell2 = '<table cellpadding="5px">';
                $rows = array_chunk($cells, $cols);
                foreach ($rows as $row) {
                    $cell2 .= '<tr><td nowrap="nowrap">' . implode('</td><td nowrap="nowrap">', $row) . '</td></tr>';
                }
                $cell2 .= '</table>';
            }
        }
        // add the 2 cells to the table
        $table->data[] = array($cell1, $selectlinks . $cell2);
    }
}
// get the default format
if ($usehtmleditor = can_use_richtext_editor()) {
    $defaultformat = FORMAT_HTML;
} else {
    $defaultformat = FORMAT_MOODLE;
}
// set up some strings
$readonly = '';
$strchooseafile = get_string('chooseafile', 'resource');
$strquickmail = get_string('blockname', 'block_quickmail');
/// Header setup
if ($course->category) {
    $navigation = "<a href=\"{$CFG->wwwroot}/course/view.php?id={$course->id}\">{$course->shortname}</a> ->";
} else {
    $navigation = '';
}
print_header($course->fullname . ': ' . $strquickmail, $course->fullname, "{$navigation} {$strquickmail}", '', '', true);

function question_print_comment_box($question, $state, $attempt, $url)
{
    global $CFG, $QTYPES;
    $prefix = 'response';
    $usehtmleditor = can_use_richtext_editor();
    if (!question_state_is_graded($state) && $QTYPES[$question->qtype]->is_question_manual_graded($question, $attempt->layout)) {
        $grade = '';
    } else {
        $grade = round($state->last_graded->grade, 3);
    }
    echo '<form method="post" action="' . $url . '">';
    include $CFG->dirroot . '/question/comment.html';
    echo '<input type="hidden" name="attempt" value="' . $attempt->uniqueid . '" />';
    echo '<input type="hidden" name="question" value="' . $question->id . '" />';
    echo '<input type="hidden" name="sesskey" value="' . sesskey() . '" />';
    echo '<input type="submit" name="submit" value="' . get_string('save', 'quiz') . '" />';
    echo '</form>';
    if ($usehtmleditor) {
        use_html_editor();
    }
}

 /**
  * Prints questions with comment and grade form underneath each question
  *
  * @return void
  * @todo Finish documenting this function
  **/
 function print_questions_and_form($quiz, $question, $userid, $attemptid, $gradeungraded, $gradenextungraded, $ungraded)
 {
     global $CFG;
     // TODO get the context, and put in proper roles an permissions checks.
     $context = NULL;
     $questions[$question->id] =& $question;
     $usehtmleditor = can_use_richtext_editor();
     list($select, $from, $where) = $this->attempts_sql($quiz->id, false, $question->id, $userid, $attemptid, $gradeungraded, $gradenextungraded);
     $sort = 'ORDER BY u.firstname, u.lastname, qa.attempt ASC';
     if ($gradenextungraded) {
         $attempts = get_records_sql($select . $from . $where . $sort, 0, QUIZ_REPORT_DEFAULT_GRADING_PAGE_SIZE);
     } else {
         $attempts = get_records_sql($select . $from . $where . $sort);
     }
     if ($attempts) {
         $firstattempt = current($attempts);
         $fullname = fullname($firstattempt);
         if ($gradeungraded) {
             // getting all ungraded attempts
             print_heading(get_string('gradingungraded', 'quiz_grading', $ungraded), '', 3);
         } else {
             if ($gradenextungraded) {
                 // getting next ungraded attempts
                 print_heading(get_string('gradingnextungraded', 'quiz_grading', QUIZ_REPORT_DEFAULT_GRADING_PAGE_SIZE), '', 3);
             } else {
                 if ($userid) {
                     print_heading(get_string('gradinguser', 'quiz_grading', $fullname), '', 3);
                 } else {
                     if ($attemptid) {
                         $a = new object();
                         $a->fullname = $fullname;
                         $a->attempt = $firstattempt->attempt;
                         print_heading(get_string('gradingattempt', 'quiz_grading', $a), '', 3);
                     } else {
                         print_heading(get_string('gradingall', 'quiz_grading', count($attempts)), '', 3);
                     }
                 }
             }
         }
         // Display the form with one part for each selected attempt
         echo '<form method="post" action="report.php">' . '<input type="hidden" name="mode" value="grading" />' . '<input type="hidden" name="q" value="' . $quiz->id . '" />' . '<input type="hidden" name="sesskey" value="' . sesskey() . '" />' . '<input type="hidden" name="questionid" value="' . $question->id . '" />';
         foreach ($attempts as $attempt) {
             // Load the state for this attempt (The questions array was created earlier)
             $states = get_question_states($questions, $quiz, $attempt);
             // The $states array is indexed by question id but because we are dealing
             // with only one question there is only one entry in this array
             $state =& $states[$question->id];
             $options = quiz_get_reviewoptions($quiz, $attempt, $context);
             unset($options->questioncommentlink);
             $options->noeditlink = true;
             $copy = $state->manualcomment;
             $state->manualcomment = '';
             $options->readonly = 1;
             $gradedclass = question_state_is_graded($state) ? ' class="highlightgraded" ' : '';
             $gradedstring = question_state_is_graded($state) ? ' ' . get_string('graded', 'quiz_grading') : '';
             $a = new object();
             $a->fullname = fullname($attempt, true);
             $a->attempt = $attempt->attempt;
             // print the user name, attempt count, the question, and some more hidden fields
             echo '<div class="boxaligncenter" width="80%" style="clear:left;padding:15px;">';
             echo "<span{$gradedclass}>" . get_string('gradingattempt', 'quiz_grading', $a);
             echo $gradedstring . "</span>";
             print_question($question, $state, '', $quiz, $options);
             $prefix = "manualgrades[{$attempt->uniqueid}]";
             if (!question_state_is_graded($state)) {
                 $grade = '';
             } else {
                 $grade = round($state->last_graded->grade, 3);
             }
             $state->manualcomment = $copy;
             include $CFG->dirroot . '/question/comment.html';
             echo '</div>';
         }
         echo '<div class="boxaligncenter"><input type="submit" value="' . get_string('savechanges') . '" /></div>' . '</form>';
         if ($usehtmleditor) {
             use_html_editor();
         }
     } else {
         notify(get_string('noattemptstoshow', 'quiz'));
     }
 }

 /**
  * Prints questions with comment and grade form underneath each question
  *
  * @return void
  * @todo Finish documenting this function
  **/
 function print_questions_and_form($quiz, $question)
 {
     global $CFG, $db;
     // grade question specific parameters
     $gradeall = optional_param('gradeall', 0, PARAM_INT);
     $userid = optional_param('userid', 0, PARAM_INT);
     $attemptid = optional_param('attemptid', 0, PARAM_INT);
     // TODO get the context, and put in proper roles an permissions checks.
     $context = NULL;
     $questions[$question->id] =& $question;
     $usehtmleditor = can_use_richtext_editor();
     $users = get_course_students($quiz->course);
     $userids = implode(',', array_keys($users));
     // this sql joins the attempts table and the user table
     $select = 'SELECT ' . sql_concat('u.id', '\'#\'', $db->IfNull('qa.attempt', '0')) . ' AS userattemptid,
                 qa.id AS attemptid, qa.uniqueid, qa.attempt, qa.timefinish, qa.preview,
                 u.id AS userid, u.firstname, u.lastname, u.picture ';
     $from = 'FROM ' . $CFG->prefix . 'user u LEFT JOIN ' . $CFG->prefix . 'quiz_attempts qa ON (u.id = qa.userid AND qa.quiz = ' . $quiz->id . ') ';
     if ($gradeall) {
         // get all user attempts
         $where = 'WHERE u.id IN (' . $userids . ') ';
     } else {
         if ($userid) {
             // get all the attempts for a specific user
             $where = 'WHERE u.id=' . $userid . ' ';
         } else {
             // get a specific attempt
             $where = 'WHERE qa.id=' . $attemptid . ' ';
         }
     }
     // ignore previews
     $where .= ' AND preview = 0 ';
     $where .= 'AND ' . $db->IfNull('qa.attempt', '0') . ' != 0 ';
     $where .= 'AND ' . $db->IfNull('qa.timefinish', '0') . ' != 0 ';
     $sort = 'ORDER BY u.firstname, u.lastname, qa.attempt ASC';
     $attempts = get_records_sql($select . $from . $where . $sort);
     // Display the form with one part for each selected attempt
     echo '<form method="post" action="report.php">' . '<input type="hidden" name="mode" value="grading" />' . '<input type="hidden" name="q" value="' . $quiz->id . '" />' . '<input type="hidden" name="sesskey" value="' . sesskey() . '" />' . '<input type="hidden" name="action" value="viewquestion" />' . '<input type="hidden" name="questionid" value="' . $question->id . '" />';
     foreach ($attempts as $attempt) {
         // Load the state for this attempt (The questions array was created earlier)
         $states = get_question_states($questions, $quiz, $attempt);
         // The $states array is indexed by question id but because we are dealing
         // with only one question there is only one entry in this array
         $state =& $states[$question->id];
         $options = quiz_get_reviewoptions($quiz, $attempt, $context);
         unset($options->questioncommentlink);
         $copy = $state->manualcomment;
         $state->manualcomment = '';
         $options->readonly = 1;
         // print the user name, attempt count, the question, and some more hidden fields
         echo '<div class="boxaligncenter" width="80%" style="padding:15px;">' . fullname($attempt, true) . ': ' . get_string('attempt', 'quiz') . $attempt->attempt;
         print_question($question, $state, '', $quiz, $options);
         $prefix = "manualgrades[{$attempt->uniqueid}]";
         $grade = round($state->last_graded->grade, 3);
         $state->manualcomment = $copy;
         include $CFG->dirroot . '/question/comment.html';
         echo '</div>';
     }
     echo '<div class="boxaligncenter"><input type="submit" value="' . get_string('savechanges') . '" /></div>' . '</form>';
     if ($usehtmleditor) {
         use_html_editor();
     }
 }

 function print_after_form()
 {
     if (can_use_richtext_editor()) {
         use_html_editor('field_' . $this->field->id, '', 'field_' . $this->field->id);
     }
 }