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PHUIListView.php
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Sat, Jun 29, 12:42

PHUIListView.php
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<?php
final class PHUIListView extends AphrontTagView {
const NAVBAR_LIST = 'phui-list-navbar';
const SIDENAV_LIST = 'phui-list-sidenav';
const TABBAR_LIST = 'phui-list-tabbar';
private $items = array();
private $type;
protected function canAppendChild() {
return false;
}
public function newLabel($name, $key = null) {
$item = id(new PHUIListItemView())
->setType(PHUIListItemView::TYPE_LABEL)
->setName($name);
if ($key !== null) {
$item->setKey($key);
}
$this->addMenuItem($item);
return $item;
}
public function newLink($name, $href, $key = null) {
$item = id(new PHUIListItemView())
->setType(PHUIListItemView::TYPE_LINK)
->setName($name)
->setHref($href);
if ($key !== null) {
$item->setKey($key);
}
$this->addMenuItem($item);
return $item;
}
public function newButton($name, $href) {
$item = id(new PHUIListItemView())
->setType(PHUIListItemView::TYPE_BUTTON)
->setName($name)
->setHref($href);
$this->addMenuItem($item);
return $item;
}
public function addMenuItem(PHUIListItemView $item) {
return $this->addMenuItemAfter(null, $item);
}
public function addMenuItemAfter($key, PHUIListItemView $item) {
if ($key === null) {
$this->items[] = $item;
return $this;
}
if (!$this->getItem($key)) {
throw new Exception(pht("No such key '%s' to add menu item after!",
$key));
}
$result = array();
foreach ($this->items as $other) {
$result[] = $other;
if ($other->getKey() == $key) {
$result[] = $item;
}
}
$this->items = $result;
return $this;
}
public function addMenuItemBefore($key, PHUIListItemView $item) {
if ($key === null) {
array_unshift($this->items, $item);
return $this;
}
$this->requireKey($key);
$result = array();
foreach ($this->items as $other) {
if ($other->getKey() == $key) {
$result[] = $item;
}
$result[] = $other;
}
$this->items = $result;
return $this;
}
public function addMenuItemToLabel($key, PHUIListItemView $item) {
$this->requireKey($key);
$other = $this->getItem($key);
if ($other->getType() != PHUIListItemView::TYPE_LABEL) {
throw new Exception(pht("Menu item '%s' is not a label!", $key));
}
$seen = false;
$after = null;
foreach ($this->items as $other) {
if (!$seen) {
if ($other->getKey() == $key) {
$seen = true;
}
} else {
if ($other->getType() == PHUIListItemView::TYPE_LABEL) {
break;
}
}
$after = $other->getKey();
}
return $this->addMenuItemAfter($after, $item);
}
private function requireKey($key) {
if (!$this->getItem($key)) {
throw new Exception(pht("No menu item with key '%s' exists!", $key));
}
}
public function getItem($key) {
$key = (string)$key;
// NOTE: We could optimize this, but need to update any map when items have
// their keys change. Since that's moderately complex, wait for a profile
// or use case.
foreach ($this->items as $item) {
if ($item->getKey() == $key) {
return $item;
}
}
return null;
}
public function getItems() {
return $this->items;
}
protected function willRender() {
$key_map = array();
foreach ($this->items as $item) {
$key = $item->getKey();
if ($key !== null) {
if (isset($key_map[$key])) {
throw new Exception(
pht("Menu contains duplicate items with key '%s'!", $key));
}
$key_map[$key] = $item;
}
}
}
public function getTagName() {
return 'ul';
}
public function setType($type) {
$this->type = $type;
return $this;
}
protected function getTagAttributes() {
require_celerity_resource('phui-list-view-css');
$classes = array();
$classes[] = 'phui-list-view';
if ($this->type) {
$classes[] = $this->type;
}
return array(
'class' => implode(' ', $classes),
);
}
protected function getTagContent() {
return $this->items;
}
}

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