PhabricatorProfileMenuEngine.php
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Created: Thu, Nov 7, 03:25

PhabricatorProfileMenuEngine.php
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	<?php

	abstract class PhabricatorProfileMenuEngine extends Phobject {

	private $viewer;
	private $profileObject;
	private $customPHID;
	private $items;
	private $menuType = self::MENU_GLOBAL;
	private $defaultItem;
	private $controller;
	private $navigation;
	private $showNavigation = true;

	const MENU_GLOBAL = 'global';
	const MENU_PERSONAL = 'personal';
	const MENU_COMBINED = 'menu';
	const ITEM_CUSTOM_DIVIDER = 'engine.divider';

	public function setViewer(PhabricatorUser $viewer) {
	$this->viewer = $viewer;
	return $this;
	}

	public function getViewer() {
	return $this->viewer;
	}

	public function setProfileObject($profile_object) {
	$this->profileObject = $profile_object;
	return $this;
	}

	public function getProfileObject() {
	return $this->profileObject;
	}

	public function setCustomPHID($custom_phid) {
	$this->customPHID = $custom_phid;
	return $this;
	}

	public function getCustomPHID() {
	return $this->customPHID;
	}

	public function setController(PhabricatorController $controller) {
	$this->controller = $controller;
	return $this;
	}

	public function getController() {
	return $this->controller;
	}

	private function setDefaultItem(
	PhabricatorProfileMenuItemConfiguration $default_item) {
	$this->defaultItem = $default_item;
	return $this;
	}

	public function getDefaultItem() {
	$this->loadItems();
	return $this->defaultItem;
	}

	public function setMenuType($type) {
	$this->menuType = $type;
	return $this;
	}

	private function getMenuType() {
	return $this->menuType;
	}

	public function setShowNavigation($show) {
	$this->showNavigation = $show;
	return $this;
	}

	public function getShowNavigation() {
	return $this->showNavigation;
	}

	abstract protected function getItemURI($path);
	abstract protected function isMenuEngineConfigurable();

	abstract protected function getBuiltinProfileItems($object);

	protected function getBuiltinCustomProfileItems(
	$object,
	$custom_phid) {
	return array();
	}

	public function buildResponse() {
	$controller = $this->getController();

	$viewer = $controller->getViewer();
	$this->setViewer($viewer);

	$request = $controller->getRequest();

	$item_action = $request->getURIData('itemAction');

	// If the engine is not configurable, don't respond to any of the editing
	// or configuration routes.
	if (!$this->isMenuEngineConfigurable()) {
	switch ($item_action) {
	case 'view':
	break;
	default:
	return new Aphront404Response();
	}
	}

	$item_id = $request->getURIData('itemID');
	$item_list = $this->getItems();

	$selected_item = null;
	if (strlen($item_id)) {
	$item_id_int = (int)$item_id;
	foreach ($item_list as $item) {
	if ($item_id_int) {
	if ((int)$item->getID() === $item_id_int) {
	$selected_item = $item;
	break;
	}
	}

	$builtin_key = $item->getBuiltinKey();
	if ($builtin_key === (string)$item_id) {
	$selected_item = $item;
	break;
	}
	}
	}

	switch ($item_action) {
	case 'view':
	case 'info':
	case 'hide':
	case 'default':
	case 'builtin':
	if (!$selected_item) {
	return new Aphront404Response();
	}
	break;
	case 'edit':
	if (!$request->getURIData('id')) {
	// If we continue along the "edit" pathway without an ID, we hit an
	// unrelated exception because we can not build a new menu item out
	// of thin air. For menus, new items are created via the "new"
	// action. Just catch this case and 404 early since there's currently
	// no clean way to make EditEngine aware of this.
	return new Aphront404Response();
	}
	break;
	}

	$navigation = $this->buildNavigation();
	$navigation->selectFilter('item.configure');

	$crumbs = $controller->buildApplicationCrumbsForEditEngine();
	switch ($this->getMenuType()) {
	case 'personal':
	$crumbs->addTextCrumb(pht('Personal'));
	break;
	case 'global':
	$crumbs->addTextCrumb(pht('Global'));
	break;
	}

	switch ($item_action) {
	case 'view':
	$content = $this->buildItemViewContent($selected_item);
	break;
	case 'configure':
	$content = $this->buildItemConfigureContent($item_list);
	$crumbs->addTextCrumb(pht('Configure Menu'));
	break;
	case 'reorder':
	$content = $this->buildItemReorderContent($item_list);
	break;
	case 'new':
	$item_key = $request->getURIData('itemKey');
	$content = $this->buildItemNewContent($item_key);
	break;
	case 'builtin':
	$content = $this->buildItemBuiltinContent($selected_item);
	break;
	case 'hide':
	$content = $this->buildItemHideContent($selected_item);
	break;
	case 'default':
	$content = $this->buildItemDefaultContent(
	$selected_item,
	$item_list);
	break;
	case 'edit':
	$content = $this->buildItemEditContent();
	break;
	default:
	throw new Exception(
	pht(
	'Unsupported item action "%s".',
	$item_action));
	}

	if ($content instanceof AphrontResponse) {
	return $content;
	}

	if ($content instanceof AphrontResponseProducerInterface) {
	return $content;
	}

	$crumbs->setBorder(true);

	$page = $controller->newPage()
	->setTitle(pht('Configure Menu'))
	->setCrumbs($crumbs)
	->appendChild($content);

	if ($this->getShowNavigation()) {
	$page->setNavigation($navigation);
	}
	return $page;
	}

	public function buildNavigation() {
	if ($this->navigation) {
	return $this->navigation;
	}

	$nav = id(new AphrontSideNavFilterView())
	->setIsProfileMenu(true)
	->setBaseURI(new PhutilURI($this->getItemURI('')));

	$menu_items = $this->getItems();

	$filtered_items = array();
	foreach ($menu_items as $menu_item) {
	if ($menu_item->isDisabled()) {
	continue;
	}
	$filtered_items[] = $menu_item;
	}
	$filtered_groups = mgroup($filtered_items, 'getMenuItemKey');
	foreach ($filtered_groups as $group) {
	$first_item = head($group);
	$first_item->willBuildNavigationItems($group);
	}

	foreach ($menu_items as $menu_item) {
	if ($menu_item->isDisabled()) {
	continue;
	}

	$items = $menu_item->buildNavigationMenuItems();
	foreach ($items as $item) {
	$this->validateNavigationMenuItem($item);
	}

	// If the item produced only a single item which does not otherwise
	// have a key, try to automatically assign it a reasonable key. This
	// makes selecting the correct item simpler.

	if (count($items) == 1) {
	$item = head($items);
	if ($item->getKey() === null) {
	$builtin_key = $menu_item->getBuiltinKey();
	$item_phid = $menu_item->getPHID();
	if ($builtin_key !== null) {
	$item->setKey($builtin_key);
	} else if ($item_phid !== null) {
	$item->setKey($item_phid);
	}
	}
	}

	foreach ($items as $item) {
	$nav->addMenuItem($item);
	}
	}

	$nav->selectFilter(null);

	$this->navigation = $nav;
	return $this->navigation;
	}

	private function getItems() {
	if ($this->items === null) {
	$this->items = $this->loadItems();
	}

	return $this->items;
	}

	private function loadItems() {
	$viewer = $this->getViewer();
	$object = $this->getProfileObject();

	$items = $this->loadBuiltinProfileItems();

	$query = id(new PhabricatorProfileMenuItemConfigurationQuery())
	->setViewer($viewer)
	->withProfilePHIDs(array($object->getPHID()));

	$menu_type = $this->getMenuType();
	switch ($menu_type) {
	case self::MENU_GLOBAL:
	$query->withCustomPHIDs(array(), true);
	break;
	case self::MENU_PERSONAL:
	$query->withCustomPHIDs(array($this->getCustomPHID()), false);
	break;
	case self::MENU_COMBINED:
	$query->withCustomPHIDs(array($this->getCustomPHID()), true);
	break;
	}

	$stored_items = $query->execute();

	foreach ($stored_items as $stored_item) {
	$impl = $stored_item->getMenuItem();
	$impl->setViewer($viewer);
	}

	// Merge the stored items into the builtin items. If a builtin item has
	// a stored version, replace the defaults with the stored changes.
	foreach ($stored_items as $stored_item) {
	if (!$stored_item->shouldEnableForObject($object)) {
	continue;
	}

	$builtin_key = $stored_item->getBuiltinKey();
	if ($builtin_key !== null) {
	// If this builtin actually exists, replace the builtin with the
	// stored configuration. Otherwise, we're just going to drop the
	// stored config: it corresponds to an out-of-date or uninstalled
	// item.
	if (isset($items[$builtin_key])) {
	$items[$builtin_key] = $stored_item;
	} else {
	continue;
	}
	} else {
	$items[] = $stored_item;
	}
	}

	$items = $this->arrangeItems($items);

	// Make sure exactly one valid item is marked as default.
	$default = null;
	$first = null;
	foreach ($items as $item) {
	if (!$item->canMakeDefault()) {
	continue;
	}

	if ($item->isDefault()) {
	$default = $item;
	break;
	}

	if ($first === null) {
	$first = $item;
	}
	}

	if (!$default) {
	$default = $first;
	}

	if ($default) {
	$this->setDefaultItem($default);
	}

	return $items;
	}

	private function loadBuiltinProfileItems() {
	$object = $this->getProfileObject();

	$menu_type = $this->getMenuType();
	switch ($menu_type) {
	case self::MENU_GLOBAL:
	$builtins = $this->getBuiltinProfileItems($object);
	break;
	case self::MENU_PERSONAL:
	$builtins = $this->getBuiltinCustomProfileItems(
	$object,
	$this->getCustomPHID());
	break;
	case self::MENU_COMBINED:
	$builtins = array();
	$builtins[] = $this->getBuiltinCustomProfileItems(
	$object,
	$this->getCustomPHID());
	$builtins[] = $this->getBuiltinProfileItems($object);
	$builtins = array_mergev($builtins);
	break;
	}

	$items = PhabricatorProfileMenuItem::getAllMenuItems();
	$viewer = $this->getViewer();

	$order = 1;
	$map = array();
	foreach ($builtins as $builtin) {
	$builtin_key = $builtin->getBuiltinKey();

	if (!$builtin_key) {
	throw new Exception(
	pht(
	'Object produced a builtin item with no builtin item key! '.
	'Builtin items must have a unique key.'));
	}

	if (isset($map[$builtin_key])) {
	throw new Exception(
	pht(
	'Object produced two items with the same builtin key ("%s"). '.
	'Each item must have a unique builtin key.',
	$builtin_key));
	}

	$item_key = $builtin->getMenuItemKey();

	$item = idx($items, $item_key);
	if (!$item) {
	throw new Exception(
	pht(
	'Builtin item ("%s") specifies a bad item key ("%s"); there '.
	'is no corresponding item implementation available.',
	$builtin_key,
	$item_key));
	}

	$item = clone $item;
	$item->setViewer($viewer);

	$builtin
	->setProfilePHID($object->getPHID())
	->attachMenuItem($item)
	->attachProfileObject($object)
	->setMenuItemOrder($order);

	if (!$builtin->shouldEnableForObject($object)) {
	continue;
	}

	$map[$builtin_key] = $builtin;

	$order++;
	}

	return $map;
	}

	private function validateNavigationMenuItem($item) {
	if (!($item instanceof PHUIListItemView)) {
	throw new Exception(
	pht(
	'Expected buildNavigationMenuItems() to return a list of '.
	'PHUIListItemView objects, but got a surprise.'));
	}
	}

	public function getConfigureURI() {
	return $this->getItemURI('configure/');
	}

	private function buildItemReorderContent(array $items) {
	$viewer = $this->getViewer();
	$object = $this->getProfileObject();

	PhabricatorPolicyFilter::requireCapability(
	$viewer,
	$object,
	PhabricatorPolicyCapability::CAN_EDIT);

	$controller = $this->getController();
	$request = $controller->getRequest();

	$request->validateCSRF();

	$order = $request->getStrList('order');

	$by_builtin = array();
	$by_id = array();

	foreach ($items as $key => $item) {
	$id = $item->getID();
	if ($id) {
	$by_id[$id] = $key;
	continue;
	}

	$builtin_key = $item->getBuiltinKey();
	if ($builtin_key) {
	$by_builtin[$builtin_key] = $key;
	continue;
	}
	}

	$key_order = array();
	foreach ($order as $order_item) {
	if (isset($by_id[$order_item])) {
	$key_order[] = $by_id[$order_item];
	continue;
	}
	if (isset($by_builtin[$order_item])) {
	$key_order[] = $by_builtin[$order_item];
	continue;
	}
	}

	$items = array_select_keys($items, $key_order) + $items;

	$type_order =
	PhabricatorProfileMenuItemConfigurationTransaction::TYPE_ORDER;

	$order = 1;
	foreach ($items as $item) {
	$xactions = array();

	$xactions[] = id(new PhabricatorProfileMenuItemConfigurationTransaction())
	->setTransactionType($type_order)
	->setNewValue($order);

	$editor = id(new PhabricatorProfileMenuEditor())
	->setContentSourceFromRequest($request)
	->setActor($viewer)
	->setContinueOnMissingFields(true)
	->setContinueOnNoEffect(true)
	->applyTransactions($item, $xactions);

	$order++;
	}

	return id(new AphrontRedirectResponse())
	->setURI($this->getConfigureURI());
	}


	private function buildItemConfigureContent(array $items) {
	$viewer = $this->getViewer();
	$object = $this->getProfileObject();

	$filtered_groups = mgroup($items, 'getMenuItemKey');
	foreach ($filtered_groups as $group) {
	$first_item = head($group);
	$first_item->willBuildNavigationItems($group);
	}

	// Users only need to be able to edit the object which this menu appears
	// on if they're editing global menu items. For example, users do not need
	// to be able to edit the Favorites application to add new items to the
	// Favorites menu.
	if (!$this->getCustomPHID()) {
	PhabricatorPolicyFilter::requireCapability(
	$viewer,
	$object,
	PhabricatorPolicyCapability::CAN_EDIT);
	}

	$list_id = celerity_generate_unique_node_id();

	Javelin::initBehavior(
	'reorder-profile-menu-items',
	array(
	'listID' => $list_id,
	'orderURI' => $this->getItemURI('reorder/'),
	));

	$list = id(new PHUIObjectItemListView())
	->setID($list_id)
	->setNoDataString(pht('This menu currently has no items.'));

	foreach ($items as $item) {
	$id = $item->getID();
	$builtin_key = $item->getBuiltinKey();

	$can_edit = PhabricatorPolicyFilter::hasCapability(
	$viewer,
	$item,
	PhabricatorPolicyCapability::CAN_EDIT);

	$view = id(new PHUIObjectItemView());

	$name = $item->getDisplayName();
	$type = $item->getMenuItemTypeName();
	if (!strlen(trim($name))) {
	$name = pht('Untitled "%s" Item', $type);
	}

	$view->setHeader($name);
	$view->addAttribute($type);

	if ($can_edit) {
	$view
	->setGrippable(true)
	->addSigil('profile-menu-item')
	->setMetadata(
	array(
	'key' => nonempty($id, $builtin_key),
	));

	if ($id) {
	$default_uri = $this->getItemURI("default/{$id}/");
	} else {
	$default_uri = $this->getItemURI("default/{$builtin_key}/");
	}

	if ($item->isDefault()) {
	$default_icon = 'fa-thumb-tack green';
	$default_text = pht('Current Default');
	} else if ($item->canMakeDefault()) {
	$default_icon = 'fa-thumb-tack';
	$default_text = pht('Make Default');
	} else {
	$default_text = null;
	}

	if ($default_text !== null) {
	$view->addAction(
	id(new PHUIListItemView())
	->setHref($default_uri)
	->setWorkflow(true)
	->setName($default_text)
	->setIcon($default_icon));
	}

	if ($id) {
	$view->setHref($this->getItemURI("edit/{$id}/"));
	$hide_uri = $this->getItemURI("hide/{$id}/");
	} else {
	$view->setHref($this->getItemURI("builtin/{$builtin_key}/"));
	$hide_uri = $this->getItemURI("hide/{$builtin_key}/");
	}

	if ($item->isDisabled()) {
	$hide_icon = 'fa-plus';
	$hide_text = pht('Enable');
	} else if ($item->getBuiltinKey() !== null) {
	$hide_icon = 'fa-times';
	$hide_text = pht('Disable');
	} else {
	$hide_icon = 'fa-times';
	$hide_text = pht('Delete');
	}

	$can_disable = $item->canHideMenuItem();

	$view->addAction(
	id(new PHUIListItemView())
	->setHref($hide_uri)
	->setWorkflow(true)
	->setDisabled(!$can_disable)
	->setName($hide_text)
	->setIcon($hide_icon));
	}

	if ($item->isDisabled()) {
	$view->setDisabled(true);
	}

	$list->addItem($view);
	}

	$action_view = id(new PhabricatorActionListView())
	->setUser($viewer);

	$item_types = PhabricatorProfileMenuItem::getAllMenuItems();
	$object = $this->getProfileObject();

	$action_list = id(new PhabricatorActionListView())
	->setViewer($viewer);

	$action_list->addAction(
	id(new PhabricatorActionView())
	->setLabel(true)
	->setName(pht('Add New Menu Item...')));

	foreach ($item_types as $item_type) {
	if (!$item_type->canAddToObject($object)) {
	continue;
	}

	$item_key = $item_type->getMenuItemKey();

	$action_list->addAction(
	id(new PhabricatorActionView())
	->setIcon($item_type->getMenuItemTypeIcon())
	->setName($item_type->getMenuItemTypeName())
	->setHref($this->getItemURI("new/{$item_key}/"))
	->setWorkflow(true));
	}

	$action_list->addAction(
	id(new PhabricatorActionView())
	->setLabel(true)
	->setName(pht('Documentation')));

	$doc_link = PhabricatorEnv::getDoclink('Profile Menu User Guide');
	$doc_name = pht('Profile Menu User Guide');

	$action_list->addAction(
	id(new PhabricatorActionView())
	->setIcon('fa-book')
	->setHref($doc_link)
	->setName($doc_name));

	$header = id(new PHUIHeaderView())
	->setHeader(pht('Menu Items'))
	->setHeaderIcon('fa-list');

	$box = id(new PHUIObjectBoxView())
	->setHeaderText(pht('Current Menu Items'))
	->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
	->setObjectList($list);

	$panel = id(new PHUICurtainPanelView())
	->appendChild($action_view);

	$curtain = id(new PHUICurtainView())
	->setViewer($viewer)
	->setActionList($action_list);

	$view = id(new PHUITwoColumnView())
	->setHeader($header)
	->setCurtain($curtain)
	->setMainColumn(
	array(
	$box,
	));

	return $view;
	}

	private function buildItemNewContent($item_key) {
	$item_types = PhabricatorProfileMenuItem::getAllMenuItems();
	$item_type = idx($item_types, $item_key);
	if (!$item_type) {
	return new Aphront404Response();
	}

	$object = $this->getProfileObject();
	if (!$item_type->canAddToObject($object)) {
	return new Aphront404Response();
	}

	$custom_phid = $this->getCustomPHID();
	$configuration = PhabricatorProfileMenuItemConfiguration::initializeNewItem(
	$object,
	$item_type,
	$custom_phid);

	$viewer = $this->getViewer();

	PhabricatorPolicyFilter::requireCapability(
	$viewer,
	$configuration,
	PhabricatorPolicyCapability::CAN_EDIT);

	$controller = $this->getController();

	return id(new PhabricatorProfileMenuEditEngine())
	->setMenuEngine($this)
	->setProfileObject($object)
	->setNewMenuItemConfiguration($configuration)
	->setCustomPHID($custom_phid)
	->setController($controller)
	->buildResponse();
	}

	private function buildItemEditContent() {
	$viewer = $this->getViewer();
	$object = $this->getProfileObject();
	$controller = $this->getController();

	return id(new PhabricatorProfileMenuEditEngine())
	->setMenuEngine($this)
	->setProfileObject($object)
	->setController($controller)
	->setCustomPHID($this->getCustomPHID())
	->buildResponse();
	}

	private function buildItemBuiltinContent(
	PhabricatorProfileMenuItemConfiguration $configuration) {

	// If this builtin item has already been persisted, redirect to the
	// edit page.
	$id = $configuration->getID();
	if ($id) {
	return id(new AphrontRedirectResponse())
	->setURI($this->getItemURI("edit/{$id}/"));
	}

	// Otherwise, act like we're creating a new item, we're just starting
	// with the builtin template.
	$viewer = $this->getViewer();

	PhabricatorPolicyFilter::requireCapability(
	$viewer,
	$configuration,
	PhabricatorPolicyCapability::CAN_EDIT);

	$object = $this->getProfileObject();
	$controller = $this->getController();

	return id(new PhabricatorProfileMenuEditEngine())
	->setIsBuiltin(true)
	->setMenuEngine($this)
	->setProfileObject($object)
	->setNewMenuItemConfiguration($configuration)
	->setController($controller)
	->setCustomPHID($this->getCustomPHID())
	->buildResponse();
	}

	private function buildItemHideContent(
	PhabricatorProfileMenuItemConfiguration $configuration) {

	$controller = $this->getController();
	$request = $controller->getRequest();
	$viewer = $this->getViewer();

	PhabricatorPolicyFilter::requireCapability(
	$viewer,
	$configuration,
	PhabricatorPolicyCapability::CAN_EDIT);

	if (!$configuration->canHideMenuItem()) {
	return $controller->newDialog()
	->setTitle(pht('Mandatory Item'))
	->appendParagraph(
	pht('This menu item is very important, and can not be disabled.'))
	->addCancelButton($this->getConfigureURI());
	}

	if ($configuration->getBuiltinKey() === null) {
	$new_value = null;

	$title = pht('Delete Menu Item');
	$body = pht('Delete this menu item?');
	$button = pht('Delete Menu Item');
	} else if ($configuration->isDisabled()) {
	$new_value = PhabricatorProfileMenuItemConfiguration::VISIBILITY_VISIBLE;

	$title = pht('Enable Menu Item');
	$body = pht(
	'Enable this menu item? It will appear in the menu again.');
	$button = pht('Enable Menu Item');
	} else {
	$new_value = PhabricatorProfileMenuItemConfiguration::VISIBILITY_DISABLED;

	$title = pht('Disable Menu Item');
	$body = pht(
	'Disable this menu item? It will no longer appear in the menu, but '.
	'you can re-enable it later.');
	$button = pht('Disable Menu Item');
	}

	$v_visibility = $configuration->getVisibility();
	if ($request->isFormPost()) {
	if ($new_value === null) {
	$configuration->delete();
	} else {
	$type_visibility =
	PhabricatorProfileMenuItemConfigurationTransaction::TYPE_VISIBILITY;

	$xactions = array();

	$xactions[] =
	id(new PhabricatorProfileMenuItemConfigurationTransaction())
	->setTransactionType($type_visibility)
	->setNewValue($new_value);

	$editor = id(new PhabricatorProfileMenuEditor())
	->setContentSourceFromRequest($request)
	->setActor($viewer)
	->setContinueOnMissingFields(true)
	->setContinueOnNoEffect(true)
	->applyTransactions($configuration, $xactions);
	}

	return id(new AphrontRedirectResponse())
	->setURI($this->getConfigureURI());
	}

	return $controller->newDialog()
	->setTitle($title)
	->appendParagraph($body)
	->addCancelButton($this->getConfigureURI())
	->addSubmitButton($button);
	}

	private function buildItemDefaultContent(
	PhabricatorProfileMenuItemConfiguration $configuration,
	array $items) {

	$controller = $this->getController();
	$request = $controller->getRequest();
	$viewer = $this->getViewer();

	PhabricatorPolicyFilter::requireCapability(
	$viewer,
	$configuration,
	PhabricatorPolicyCapability::CAN_EDIT);

	$done_uri = $this->getConfigureURI();

	if (!$configuration->canMakeDefault()) {
	return $controller->newDialog()
	->setTitle(pht('Not Defaultable'))
	->appendParagraph(
	pht(
	'This item can not be set as the default item. This is usually '.
	'because the item has no page of its own, or links to an '.
	'external page.'))
	->addCancelButton($done_uri);
	}

	if ($configuration->isDefault()) {
	return $controller->newDialog()
	->setTitle(pht('Already Default'))
	->appendParagraph(
	pht(
	'This item is already set as the default item for this menu.'))
	->addCancelButton($done_uri);
	}

	if ($request->isFormPost()) {
	$key = $configuration->getID();
	if (!$key) {
	$key = $configuration->getBuiltinKey();
	}

	$this->adjustDefault($key);

	return id(new AphrontRedirectResponse())
	->setURI($done_uri);
	}

	return $controller->newDialog()
	->setTitle(pht('Make Default'))
	->appendParagraph(
	pht(
	'Set this item as the default for this menu? Users arriving on '.
	'this page will be shown the content of this item by default.'))
	->addCancelButton($done_uri)
	->addSubmitButton(pht('Make Default'));
	}

	protected function newItem() {
	return PhabricatorProfileMenuItemConfiguration::initializeNewBuiltin();
	}

	public function adjustDefault($key) {
	$controller = $this->getController();
	$request = $controller->getRequest();
	$viewer = $request->getViewer();

	$items = $this->loadItems();

	// To adjust the default item, we first change any existing items that
	// are marked as defaults to "visible", then make the new default item
	// the default.

	$default = array();
	$visible = array();

	foreach ($items as $item) {
	$builtin_key = $item->getBuiltinKey();
	$id = $item->getID();

	$is_target =
	(($builtin_key !== null) && ($builtin_key === $key)) \|\|
	(($id !== null) && ((int)$id === (int)$key));

	if ($is_target) {
	if (!$item->isDefault()) {
	$default[] = $item;
	}
	} else {
	if ($item->isDefault()) {
	$visible[] = $item;
	}
	}
	}

	$type_visibility =
	PhabricatorProfileMenuItemConfigurationTransaction::TYPE_VISIBILITY;

	$v_visible = PhabricatorProfileMenuItemConfiguration::VISIBILITY_VISIBLE;
	$v_default = PhabricatorProfileMenuItemConfiguration::VISIBILITY_DEFAULT;

	$apply = array(
	array($v_visible, $visible),
	array($v_default, $default),
	);

	foreach ($apply as $group) {
	list($value, $items) = $group;
	foreach ($items as $item) {
	$xactions = array();

	$xactions[] =
	id(new PhabricatorProfileMenuItemConfigurationTransaction())
	->setTransactionType($type_visibility)
	->setNewValue($value);

	$editor = id(new PhabricatorProfileMenuEditor())
	->setContentSourceFromRequest($request)
	->setActor($viewer)
	->setContinueOnMissingFields(true)
	->setContinueOnNoEffect(true)
	->applyTransactions($item, $xactions);
	}
	}

	return $this;
	}

	private function arrangeItems(array $items) {
	// Sort the items.
	$items = msortv($items, 'getSortVector');

	// If we have some global items and some custom items and are in "combined"
	// mode, put a hard-coded divider item between them.
	if ($this->getMenuType() == self::MENU_COMBINED) {
	$list = array();
	$seen_custom = false;
	$seen_global = false;
	foreach ($items as $item) {
	if ($item->getCustomPHID()) {
	$seen_custom = true;
	} else {
	if ($seen_custom && !$seen_global) {
	$list[] = $this->newItem()
	->setBuiltinKey(self::ITEM_CUSTOM_DIVIDER)
	->setMenuItemKey(PhabricatorDividerProfileMenuItem::MENUITEMKEY)
	->attachMenuItem(
	new PhabricatorDividerProfileMenuItem());
	}
	$seen_global = true;
	}
	$list[] = $item;
	}
	$items = $list;
	}

	// Normalize keys since callers shouldn't rely on this array being
	// partially keyed.
	$items = array_values($items);

	return $items;
	}


	}

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