/**
* @param object $quiz the quiz
* @param object $question the question
* @param boolean $label if true, show the previewquestion label after the icon
* @return the HTML for a preview question icon.
*/
function quiz_question_preview_button($quiz, $question, $label = false)
{
global $CFG, $COURSE, $OUTPUT;
if (!question_has_capability_on($question, 'use', $question->category)) {
return '';
}
// Minor efficiency saving. Only get strings once, even if there are a lot of icons on one page.
static $strpreview = null;
static $strpreviewquestion = null;
if ($strpreview === null) {
$strpreview = get_string('preview', 'quiz');
$strpreviewquestion = get_string('previewquestion', 'quiz');
}
// Do we want a label?
$strpreviewlabel = "";
if ($label) {
$strpreviewlabel = $strpreview;
}
// Build the icon.
$image = new html_image();
$image->src = $OUTPUT->old_icon_url('t/preview');
$image->add_class('iconsmall');
$image->alt = $strpreviewquestion;
$link = html_link::make("/question/preview.php?id={$question->id}&quizid={$quiz->id}", $strpreviewlabel);
parse_str(QUESTION_PREVIEW_POPUP_OPTIONS, $options);
$link->add_action(new popup_action('click', $link->url, 'questionpreview', $options));
$link->title = $strpreviewquestion;
return $OUTPUT->link_to_popup($link, $image);
}
/**
* @see lib/moodle_html_component#prepare()
* @return void
*/
public function prepare()
{
$this->image->add_class('action-icon');
if (!empty($this->actions)) {
foreach ($this->actions as $action) {
$this->link->add_action($action);
}
unset($this->actions);
}
parent::prepare();
if (empty($this->image->src)) {
throw new coding_exception('moodle_action_icon->image->src must not be empty');
}
if (empty($this->image->alt) && !empty($this->linktext)) {
$this->image->alt = $this->linktext;
} else {
if (empty($this->image->alt)) {
debugging('moodle_action_icon->image->alt should not be empty.', DEBUG_DEVELOPER);
}
}
}
public function test_spacer()
{
global $CFG;
$spacer = new html_image();
$html = $this->renderer->spacer($spacer);
$this->assert(new ContainsTagWithAttributes('img', array('class' => 'image spacer', 'src' => $CFG->wwwroot . '/pix/spacer.gif', 'alt' => '')), $html);
$spacer = new html_image();
$spacer->src = $this->renderer->old_icon_url('myspacer');
$spacer->alt = 'sometext';
$spacer->add_class('my');
$html = $this->renderer->spacer($spacer);
$this->assert(new ContainsTagWithAttributes('img', array('class' => 'my image spacer', 'src' => $this->renderer->old_icon_url('myspacer'), 'alt' => 'sometext')), $html);
}
protected function display_content($question, $rowclasses)
{
global $OUTPUT;
if (question_has_capability_on($question, 'use')) {
parse_str(QUESTION_PREVIEW_POPUP_OPTIONS, $options);
$image = new html_image();
$image->src = $OUTPUT->old_icon_url('t/preview');
$image->add_class('iconsmall');
$image->alt = $this->strpreview;
$link = html_link::make($this->qbank->preview_question_url($question->id), $this->strpreview);
$link->add_action(new popup_action('click', $link->url, 'questionpreview', $options));
$link->title = $this->strpreview;
echo $OUTPUT->link_to_popup($link, $image);
}
}
