Returns the brightness of a color.
| public static brightness ( string $color ) : integer | ||
| $color | string | An HTML color, e.g.: #ffffcc. |
| return | integer | The brightness on a scale of 0 to 255. |
/**
* Returns the foreground color.
*
* @return string A HTML color code.
*/
public function foregroundColor()
{
return Horde_Image::brightness($this->backgroundColor()) < 128 ? '#fff' : '#000';
}
/**
* Adds a row to the sidebar.
*
* If containers/sections are not added explicitly to the view
* through the "containers" property, these rows will be used
* instead.
*
* @param array $row A hash with the row information. Possible
* values:
* - label: (string) The row text.
* - selected: (boolean) Whether to mark the row as active.
* - style: (string) Additional CSS styles to apply to the row.
* - url (string) URL to link the row to.
* - type (string, optional) The row type, defaults to "tree". Further
* $row properties depending on the type:
* - tree:
* - cssClass: (string) CSS class for the icon.
* - id: (string) DOM ID for the row link.
* - checkbox:
* - radiobox:
* - color: (string, optional) Background color.
* - edit: (string, optional) URL for extra edit icon.
* @param string $container If using multiple sidebar sections, the ID of
* the section to add the row to. Sections will
* be rendered in the order of their first usage.
*/
public function addRow(array $row, $container = '')
{
if (!isset($this->containers[$container])) {
$this->containers[$container] = array('rows' => array());
if ($container) {
$this->containers[$container]['id'] = $container;
}
}
$boxrow = isset($row['type']) && ($row['type'] == 'checkbox' || $row['type'] == 'radiobox');
$label = htmlspecialchars($row['label']);
if (isset($row['url'])) {
$url = empty($row['url']) ? new Horde_Url() : $row['url'];
if ($boxrow) {
$attributes = array();
} else {
$ak = Horde::getAccessKey($label);
$attributes = $ak ? array('accesskey' => $ak) : array();
}
foreach (array('onclick', 'target', 'class') as $attribute) {
if (!empty($row[$attribute])) {
$attributes[$attribute] = $row[$attribute];
}
}
if ($boxrow) {
$class = 'horde-resource-' . (empty($row['selected']) ? 'off' : 'on');
if ($row['type'] == 'radiobox') {
$class .= ' horde-radiobox';
}
if (empty($attributes['class'])) {
$attributes['class'] = $class;
} else {
$attributes['class'] .= ' ' . $class;
}
$row['link'] = $url->link($attributes) . $label . '</a>';
} else {
$row['link'] = $url->link($attributes) . Horde::highlightAccessKey($label, $ak) . '</a>';
}
} else {
$row['link'] = '<span class="horde-resource-none">' . $label . '</span>';
}
if ($boxrow) {
$this->containers[$container]['type'] = $row['type'];
if (!isset($row['style'])) {
$row['style'] = '';
}
if (!isset($row['color'])) {
$row['color'] = '#dddddd';
}
$foreground = '000';
if (Horde_Image::brightness($row['color']) < 128) {
$foreground = 'fff';
}
if (strlen($row['style'])) {
$row['style'] .= ';';
}
$row['style'] .= 'background-color:' . $row['color'] . ';color:#' . $foreground;
if (isset($row['edit'])) {
$row['editLink'] = $row['edit']->link(array('title' => _("Edit"), 'class' => 'horde-resource-edit-' . $foreground)) . '►' . '</a>';
}
}
$this->containers[$container]['rows'][] = $row;
}
/**
* Returns the foreground color for each of the user's categories.
*
* @return array A list of colors, key is the category name, value is the
* HTML color code.
*/
public static function fgColors()
{
$colors = self::colors();
$fgcolors = array();
foreach ($colors as $name => $color) {
$fgcolors[$name] = Horde_Image::brightness($color) < 128 ? '#f6f6f6' : '#000';
}
return $fgcolors;
}
/**
* Returns the foreground color for a calendar or a background color.
*
* @param array|Horde_Share_Object|string $calendar A color string, a
* calendar share or a
* hash from a remote
* calender definition.
*
* @return string A HTML color code.
*/
public static function foregroundColor($calendar)
{
return Horde_Image::brightness(is_string($calendar) ? $calendar : self::backgroundColor($calendar)) < 128 ? '#fff' : '#000';
}
protected function _renderVarInput_colorpicker($form, &$var, &$vars)
{
global $registry, $browser;
$varname = $this->_genID($var->getVarName(), false);
$color = $var->getValue($vars);
if ($color) {
$style = ' style="background-color:' . $color . ';color:' . (Horde_Image::brightness($color) < 128 ? '#fff' : '#000') . '"';
} else {
$style = '';
}
$html = '<table cellspacing="0"><tr><td>' . '<input type="text" size="10" maxlength="7" name="' . htmlspecialchars($var->getVarName()) . '" id="' . $varname . '"' . $style . ' value="' . htmlspecialchars($color) . '" /></td>';
if ($browser->hasFeature('javascript')) {
$GLOBALS['injector']->getInstance('Horde_PageOutput')->addScriptFile('colorpicker.js', 'horde');
$html .= '<td>' . Horde::link('#', Horde_Core_Translation::t("Color Picker"), '', '', 'new ColorPicker({ color: \'' . htmlspecialchars($color) . '\', offsetParent: Event.element(event), update: [[\'' . $varname . '\', \'value\'], [\'' . $varname . '\', \'background\']] }); return false;') . Horde::img('colorpicker.png', Horde_Core_Translation::t("Color Picker"), 'height="16"') . '</a></td>';
}
return $html . '</tr></table>';
}
protected function _renderVarDisplay_colorpicker($form, &$var, &$vars)
{
$color = $var->getValue($vars);
return '<span style="background-color:' . $color . ';color:' . (Horde_Image::brightness($color) < 128 ? '#fff' : '#000') . '">' . $color . '</span>';
}
/**
*/
public function __get($name)
{
switch ($name) {
case 'bgcolor':
return $this->_bgcolor ? $this->_bgcolor : self::DEFAULT_BG;
case 'bgdefault':
return $this->bgcolor == self::DEFAULT_BG;
case 'canset':
return $this->_canset;
case 'css':
return $this->_css;
case 'cssicon':
return $this->_cssIcon ? $this->_cssIcon : $this->_css;
case 'span':
return $this->_css ? '<span class="iconImg msgflags ' . $this->css . '" title="' . htmlspecialchars($this->label) . '"> </span>' : '';
case 'fgcolor':
return Horde_Image::brightness($this->bgcolor) < 128 ? '#f6f6f6' : '#000';
case 'form_set':
return $this->id;
case 'form_unset':
return '0\\' . $this->id;
case 'hash':
return hash('md5', $this->id);
case 'id':
return $this->_id;
case 'label':
return $this->getLabel();
}
}
