HeraldAction.php
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Created: Wed, Dec 4, 15:13

HeraldAction.php
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	<?php

	abstract class HeraldAction extends Phobject {

	private $adapter;
	private $viewer;
	private $applyLog = array();

	const STANDARD_NONE = 'standard.none';
	const STANDARD_PHID_LIST = 'standard.phid.list';
	const STANDARD_TEXT = 'standard.text';
	const STANDARD_REMARKUP = 'standard.remarkup';

	const DO_STANDARD_EMPTY = 'do.standard.empty';
	const DO_STANDARD_NO_EFFECT = 'do.standard.no-effect';
	const DO_STANDARD_INVALID = 'do.standard.invalid';
	const DO_STANDARD_UNLOADABLE = 'do.standard.unloadable';
	const DO_STANDARD_PERMISSION = 'do.standard.permission';
	const DO_STANDARD_INVALID_ACTION = 'do.standard.invalid-action';
	const DO_STANDARD_WRONG_RULE_TYPE = 'do.standard.wrong-rule-type';
	const DO_STANDARD_FORBIDDEN = 'do.standard.forbidden';

	abstract public function getHeraldActionName();
	abstract public function supportsObject($object);
	abstract public function supportsRuleType($rule_type);
	abstract public function applyEffect($object, HeraldEffect $effect);

	abstract public function renderActionDescription($value);

	public function getRequiredAdapterStates() {
	return array();
	}

	protected function renderActionEffectDescription($type, $data) {
	return null;
	}

	public function getActionGroupKey() {
	return null;
	}

	public function getActionsForObject($object) {
	return array($this->getActionConstant() => $this);
	}

	protected function getDatasource() {
	throw new PhutilMethodNotImplementedException();
	}

	protected function getDatasourceValueMap() {
	return null;
	}

	public function getHeraldActionStandardType() {
	throw new PhutilMethodNotImplementedException();
	}

	public function getHeraldActionValueType() {
	switch ($this->getHeraldActionStandardType()) {
	case self::STANDARD_NONE:
	return new HeraldEmptyFieldValue();
	case self::STANDARD_TEXT:
	return new HeraldTextFieldValue();
	case self::STANDARD_REMARKUP:
	return new HeraldRemarkupFieldValue();
	case self::STANDARD_PHID_LIST:
	$tokenizer = id(new HeraldTokenizerFieldValue())
	->setKey($this->getHeraldActionName())
	->setDatasource($this->getDatasource());

	$value_map = $this->getDatasourceValueMap();
	if ($value_map !== null) {
	$tokenizer->setValueMap($value_map);
	}

	return $tokenizer;
	}

	throw new PhutilMethodNotImplementedException();
	}

	public function willSaveActionValue($value) {
	try {
	$type = $this->getHeraldActionStandardType();
	} catch (PhutilMethodNotImplementedException $ex) {
	return $value;
	}

	switch ($type) {
	case self::STANDARD_PHID_LIST:
	return array_keys($value);
	}

	return $value;
	}

	public function getEditorValue(PhabricatorUser $viewer, $target) {
	try {
	$type = $this->getHeraldActionStandardType();
	} catch (PhutilMethodNotImplementedException $ex) {
	return $target;
	}

	switch ($type) {
	case self::STANDARD_PHID_LIST:
	$datasource = $this->getDatasource();

	if (!$datasource) {
	return array();
	}

	return $datasource
	->setViewer($viewer)
	->getWireTokens($target);
	}

	return $target;
	}

	final public function setAdapter(HeraldAdapter $adapter) {
	$this->adapter = $adapter;
	return $this;
	}

	final public function getAdapter() {
	return $this->adapter;
	}

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

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

	final public function getActionConstant() {
	return $this->getPhobjectClassConstant('ACTIONCONST', 64);
	}

	final public static function getAllActions() {
	return id(new PhutilClassMapQuery())
	->setAncestorClass(__CLASS__)
	->setUniqueMethod('getActionConstant')
	->execute();
	}

	protected function logEffect($type, $data = null) {
	if (!is_string($type)) {
	throw new Exception(
	pht(
	'Effect type passed to "%s" must be a scalar string.',
	'logEffect()'));
	}

	$this->applyLog[] = array(
	'type' => $type,
	'data' => $data,
	);

	return $this;
	}

	final public function getApplyTranscript(HeraldEffect $effect) {
	$context = $this->applyLog;
	$this->applyLog = array();
	return new HeraldApplyTranscript($effect, true, $context);
	}

	protected function getActionEffectMap() {
	throw new PhutilMethodNotImplementedException();
	}

	private function getActionEffectSpec($type) {
	$map = $this->getActionEffectMap() + $this->getStandardEffectMap();
	return idx($map, $type, array());
	}

	final public function renderActionEffectIcon($type, $data) {
	$map = $this->getActionEffectSpec($type);
	return idx($map, 'icon');
	}

	final public function renderActionEffectColor($type, $data) {
	$map = $this->getActionEffectSpec($type);
	return idx($map, 'color');
	}

	final public function renderActionEffectName($type, $data) {
	$map = $this->getActionEffectSpec($type);
	return idx($map, 'name');
	}

	protected function renderHandleList($phids) {
	if (!is_array($phids)) {
	return pht('(Invalid List)');
	}

	return $this->getViewer()
	->renderHandleList($phids)
	->setAsInline(true)
	->render();
	}

	protected function loadStandardTargets(
	array $phids,
	array $allowed_types,
	array $current_value) {

	$phids = array_fuse($phids);
	if (!$phids) {
	$this->logEffect(self::DO_STANDARD_EMPTY);
	}

	$current_value = array_fuse($current_value);
	$no_effect = array();
	foreach ($phids as $phid) {
	if (isset($current_value[$phid])) {
	$no_effect[] = $phid;
	unset($phids[$phid]);
	}
	}

	if ($no_effect) {
	$this->logEffect(self::DO_STANDARD_NO_EFFECT, $no_effect);
	}

	if (!$phids) {
	return;
	}

	$allowed_types = array_fuse($allowed_types);
	$invalid = array();
	foreach ($phids as $phid) {
	$type = phid_get_type($phid);
	if ($type == PhabricatorPHIDConstants::PHID_TYPE_UNKNOWN) {
	$invalid[] = $phid;
	unset($phids[$phid]);
	continue;
	}

	if ($allowed_types && empty($allowed_types[$type])) {
	$invalid[] = $phid;
	unset($phids[$phid]);
	continue;
	}
	}

	if ($invalid) {
	$this->logEffect(self::DO_STANDARD_INVALID, $invalid);
	}

	if (!$phids) {
	return;
	}

	$targets = id(new PhabricatorObjectQuery())
	->setViewer(PhabricatorUser::getOmnipotentUser())
	->withPHIDs($phids)
	->execute();
	$targets = mpull($targets, null, 'getPHID');

	$unloadable = array();
	foreach ($phids as $phid) {
	if (empty($targets[$phid])) {
	$unloadable[] = $phid;
	unset($phids[$phid]);
	}
	}

	if ($unloadable) {
	$this->logEffect(self::DO_STANDARD_UNLOADABLE, $unloadable);
	}

	if (!$phids) {
	return;
	}

	$adapter = $this->getAdapter();
	$object = $adapter->getObject();

	if ($object instanceof PhabricatorPolicyInterface) {
	$no_permission = array();
	foreach ($targets as $phid => $target) {
	if (!($target instanceof PhabricatorUser)) {
	continue;
	}

	$can_view = PhabricatorPolicyFilter::hasCapability(
	$target,
	$object,
	PhabricatorPolicyCapability::CAN_VIEW);
	if ($can_view) {
	continue;
	}

	$no_permission[] = $phid;
	unset($targets[$phid]);
	}
	}

	if ($no_permission) {
	$this->logEffect(self::DO_STANDARD_PERMISSION, $no_permission);
	}

	return $targets;
	}

	protected function getStandardEffectMap() {
	return array(
	self::DO_STANDARD_EMPTY => array(
	'icon' => 'fa-ban',
	'color' => 'grey',
	'name' => pht('No Targets'),
	),
	self::DO_STANDARD_NO_EFFECT => array(
	'icon' => 'fa-circle-o',
	'color' => 'grey',
	'name' => pht('No Effect'),
	),
	self::DO_STANDARD_INVALID => array(
	'icon' => 'fa-ban',
	'color' => 'red',
	'name' => pht('Invalid Targets'),
	),
	self::DO_STANDARD_UNLOADABLE => array(
	'icon' => 'fa-ban',
	'color' => 'red',
	'name' => pht('Unloadable Targets'),
	),
	self::DO_STANDARD_PERMISSION => array(
	'icon' => 'fa-lock',
	'color' => 'red',
	'name' => pht('No Permission'),
	),
	self::DO_STANDARD_INVALID_ACTION => array(
	'icon' => 'fa-ban',
	'color' => 'red',
	'name' => pht('Invalid Action'),
	),
	self::DO_STANDARD_WRONG_RULE_TYPE => array(
	'icon' => 'fa-ban',
	'color' => 'red',
	'name' => pht('Wrong Rule Type'),
	),
	self::DO_STANDARD_FORBIDDEN => array(
	'icon' => 'fa-ban',
	'color' => 'violet',
	'name' => pht('Forbidden'),
	),
	);
	}

	final public function renderEffectDescription($type, $data) {
	$result = $this->renderActionEffectDescription($type, $data);
	if ($result !== null) {
	return $result;
	}

	switch ($type) {
	case self::DO_STANDARD_EMPTY:
	return pht(
	'This action specifies no targets.');
	case self::DO_STANDARD_NO_EFFECT:
	if ($data && is_array($data)) {
	return pht(
	'This action has no effect on %s target(s): %s.',
	phutil_count($data),
	$this->renderHandleList($data));
	} else {
	return pht('This action has no effect.');
	}
	case self::DO_STANDARD_INVALID:
	return pht(
	'%s target(s) are invalid or of the wrong type: %s.',
	phutil_count($data),
	$this->renderHandleList($data));
	case self::DO_STANDARD_UNLOADABLE:
	return pht(
	'%s target(s) could not be loaded: %s.',
	phutil_count($data),
	$this->renderHandleList($data));
	case self::DO_STANDARD_PERMISSION:
	return pht(
	'%s target(s) do not have permission to see this object: %s.',
	phutil_count($data),
	$this->renderHandleList($data));
	case self::DO_STANDARD_INVALID_ACTION:
	return pht(
	'No implementation is available for rule "%s".',
	$data);
	case self::DO_STANDARD_WRONG_RULE_TYPE:
	return pht(
	'This action does not support rules of type "%s".',
	$data);
	case self::DO_STANDARD_FORBIDDEN:
	return HeraldStateReasons::getExplanation($data);
	}

	return null;
	}

	}

HeraldAction.phpNo OneTemporaryActions

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HeraldAction.php
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HeraldAction.php
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