Implement open() and closed() Maniphest tokenizer status functions, plus cleanup

Summary:
Ref T4100.

  - Make it easy to choose all open or closed tasks.
  - Make "special" tokenizers composable.
  - Get `viewer()` generating documentation properly.

Test Plan:
  - Ran queries with new tokens.
  - Browsed new tokens.
  - Viewed docs on new tokens.
  - Used plain status tokens.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: chad, epriestley

Maniphest Tasks: T4100

Differential Revision: https://secure.phabricator.com/D12530

src/__phutil_library_map__.php

@@ -1045,6 +1045,7 @@ phutil_register_library_map(array(
     'ManiphestStatusEmailCommand' => 'applications/maniphest/command/ManiphestStatusEmailCommand.php',
     'ManiphestSubpriorityController' => 'applications/maniphest/controller/ManiphestSubpriorityController.php',
     'ManiphestTask' => 'applications/maniphest/storage/ManiphestTask.php',
+    'ManiphestTaskClosedStatusDatasource' => 'applications/maniphest/typeahead/ManiphestTaskClosedStatusDatasource.php',
     'ManiphestTaskDependedOnByTaskEdgeType' => 'applications/maniphest/edge/ManiphestTaskDependedOnByTaskEdgeType.php',
     'ManiphestTaskDependsOnTaskEdgeType' => 'applications/maniphest/edge/ManiphestTaskDependsOnTaskEdgeType.php',
     'ManiphestTaskDetailController' => 'applications/maniphest/controller/ManiphestTaskDetailController.php',
@@ -1055,6 +1056,7 @@ phutil_register_library_map(array(
     'ManiphestTaskListController' => 'applications/maniphest/controller/ManiphestTaskListController.php',
     'ManiphestTaskListView' => 'applications/maniphest/view/ManiphestTaskListView.php',
     'ManiphestTaskMailReceiver' => 'applications/maniphest/mail/ManiphestTaskMailReceiver.php',
+    'ManiphestTaskOpenStatusDatasource' => 'applications/maniphest/typeahead/ManiphestTaskOpenStatusDatasource.php',
     'ManiphestTaskOwner' => 'applications/maniphest/constants/ManiphestTaskOwner.php',
     'ManiphestTaskPHIDType' => 'applications/maniphest/phid/ManiphestTaskPHIDType.php',
     'ManiphestTaskPriority' => 'applications/maniphest/constants/ManiphestTaskPriority.php',
@@ -1064,6 +1066,7 @@ phutil_register_library_map(array(
     'ManiphestTaskSearchEngine' => 'applications/maniphest/query/ManiphestTaskSearchEngine.php',
     'ManiphestTaskStatus' => 'applications/maniphest/constants/ManiphestTaskStatus.php',
     'ManiphestTaskStatusDatasource' => 'applications/maniphest/typeahead/ManiphestTaskStatusDatasource.php',
+    'ManiphestTaskStatusFunctionDatasource' => 'applications/maniphest/typeahead/ManiphestTaskStatusFunctionDatasource.php',
     'ManiphestTaskStatusTestCase' => 'applications/maniphest/constants/__tests__/ManiphestTaskStatusTestCase.php',
     'ManiphestTaskTestCase' => 'applications/maniphest/__tests__/ManiphestTaskTestCase.php',
     'ManiphestTransaction' => 'applications/maniphest/storage/ManiphestTransaction.php',
@@ -4335,6 +4338,7 @@ phutil_register_library_map(array(
       'PhabricatorApplicationTransactionInterface',
       'PhabricatorProjectInterface',
     ),
+    'ManiphestTaskClosedStatusDatasource' => 'PhabricatorTypeaheadDatasource',
     'ManiphestTaskDependedOnByTaskEdgeType' => 'PhabricatorEdgeType',
     'ManiphestTaskDependsOnTaskEdgeType' => 'PhabricatorEdgeType',
     'ManiphestTaskDetailController' => 'ManiphestController',
@@ -4345,6 +4349,7 @@ phutil_register_library_map(array(
     'ManiphestTaskListController' => 'ManiphestController',
     'ManiphestTaskListView' => 'ManiphestView',
     'ManiphestTaskMailReceiver' => 'PhabricatorObjectMailReceiver',
+    'ManiphestTaskOpenStatusDatasource' => 'PhabricatorTypeaheadDatasource',
     'ManiphestTaskOwner' => 'ManiphestConstants',
     'ManiphestTaskPHIDType' => 'PhabricatorPHIDType',
     'ManiphestTaskPriority' => 'ManiphestConstants',
@@ -4354,6 +4359,7 @@ phutil_register_library_map(array(
     'ManiphestTaskSearchEngine' => 'PhabricatorApplicationSearchEngine',
     'ManiphestTaskStatus' => 'ManiphestConstants',
     'ManiphestTaskStatusDatasource' => 'PhabricatorTypeaheadDatasource',
+    'ManiphestTaskStatusFunctionDatasource' => 'PhabricatorTypeaheadCompositeDatasource',
     'ManiphestTaskStatusTestCase' => 'PhabricatorTestCase',
     'ManiphestTaskTestCase' => 'PhabricatorTestCase',
     'ManiphestTransaction' => 'PhabricatorApplicationTransaction',

src/applications/maniphest/query/ManiphestTaskSearchEngine.php

@@ -139,7 +139,10 @@ final class ManiphestTaskSearchEngine
       $query->withOwners($assigned_phids);
     }
 
+    $datasource = id(new ManiphestTaskStatusFunctionDatasource())
+      ->setViewer($this->requireViewer());
     $statuses = $saved->getParameter('statuses');
+    $statuses = $datasource->evaluateTokens($statuses);
     if ($statuses) {
       $query->withStatuses($statuses);
     }
@@ -274,7 +277,7 @@ final class ManiphestTaskSearchEngine
           ->setValue($subscriber_phids))
       ->appendControl(
         id(new AphrontFormTokenizerControl())
-          ->setDatasource(new ManiphestTaskStatusDatasource())
+          ->setDatasource(new ManiphestTaskStatusFunctionDatasource())
           ->setLabel(pht('Statuses'))
           ->setName('statuses')
           ->setValue($statuses))

src/applications/maniphest/typeahead/ManiphestTaskClosedStatusDatasource.php

@@ -0,0 +1,73 @@
+<?php
+
+final class ManiphestTaskClosedStatusDatasource
+  extends PhabricatorTypeaheadDatasource {
+
+  const FUNCTION_TOKEN = 'closed()';
+
+  public function getBrowseTitle() {
+    return pht('Browse Any Closed Status');
+  }
+
+  public function getPlaceholderText() {
+    return pht('Type closed()...');
+  }
+
+  public function getDatasourceApplicationClass() {
+    return 'PhabricatorManiphestApplication';
+  }
+
+  public function getDatasourceFunctions() {
+    return array(
+      'closed' => array(
+        'name' => pht('Any Closed Status'),
+        'summary' => pht('Find results with any closed status.'),
+        'description' => pht(
+          'This function includes results which have any closed status.'),
+      ),
+    );
+  }
+
+  public function loadResults() {
+    $results = array(
+      $this->buildClosedResult(),
+    );
+    return $this->filterResultsAgainstTokens($results);
+  }
+
+  protected function evaluateFunction($function, array $argv_list) {
+    $results = array();
+
+    $map = ManiphestTaskStatus::getTaskStatusMap();
+    foreach ($argv_list as $argv) {
+      foreach ($map as $status => $name) {
+        if (!ManiphestTaskStatus::isOpenStatus($status)) {
+          $results[] = $status;
+        }
+      }
+    }
+
+    return $results;
+  }
+
+  public function renderFunctionTokens($function, array $argv_list) {
+    $results = array();
+
+    foreach ($argv_list as $argv) {
+      $results[] = PhabricatorTypeaheadTokenView::newFromTypeaheadResult(
+        $this->buildClosedResult());
+    }
+
+    return $results;
+  }
+
+  private function buildClosedResult() {
+    $name = pht('Any Closed Status');
+    return $this->newFunctionResult()
+      ->setName($name.' closed')
+      ->setDisplayName($name)
+      ->setPHID(self::FUNCTION_TOKEN)
+      ->setUnique(true);
+  }
+
+}

src/applications/maniphest/typeahead/ManiphestTaskOpenStatusDatasource.php

@@ -0,0 +1,73 @@
+<?php
+
+final class ManiphestTaskOpenStatusDatasource
+  extends PhabricatorTypeaheadDatasource {
+
+  const FUNCTION_TOKEN = 'open()';
+
+  public function getBrowseTitle() {
+    return pht('Browse Any Open Status');
+  }
+
+  public function getPlaceholderText() {
+    return pht('Type open()...');
+  }
+
+  public function getDatasourceApplicationClass() {
+    return 'PhabricatorManiphestApplication';
+  }
+
+  public function getDatasourceFunctions() {
+    return array(
+      'open' => array(
+        'name' => pht('Any Open Status'),
+        'summary' => pht('Find results with any open status.'),
+        'description' => pht(
+          'This function includes results which have any open status.'),
+      ),
+    );
+  }
+
+  public function loadResults() {
+    $results = array(
+      $this->buildOpenResult(),
+    );
+    return $this->filterResultsAgainstTokens($results);
+  }
+
+  protected function evaluateFunction($function, array $argv_list) {
+    $results = array();
+
+    $map = ManiphestTaskStatus::getTaskStatusMap();
+    foreach ($argv_list as $argv) {
+      foreach ($map as $status => $name) {
+        if (ManiphestTaskStatus::isOpenStatus($status)) {
+          $results[] = $status;
+        }
+      }
+    }
+
+    return $results;
+  }
+
+  public function renderFunctionTokens($function, array $argv_list) {
+    $results = array();
+
+    foreach ($argv_list as $argv) {
+      $results[] = PhabricatorTypeaheadTokenView::newFromTypeaheadResult(
+        $this->buildOpenResult());
+    }
+
+    return $results;
+  }
+
+  private function buildOpenResult() {
+    $name = pht('Any Open Status');
+    return $this->newFunctionResult()
+      ->setName($name.' open')
+      ->setDisplayName($name)
+      ->setPHID(self::FUNCTION_TOKEN)
+      ->setUnique(true);
+  }
+
+}

src/applications/maniphest/typeahead/ManiphestTaskStatusDatasource.php

@@ -20,7 +20,8 @@ final class ManiphestTaskStatusDatasource
     return $this->filterResultsAgainstTokens($results);
   }
 
-  public function renderTokens(array $values) {
+
+  protected function renderSpecialTokens(array $values) {
     return $this->renderTokensFromResults($this->buildResults(), $values);
   }
 

src/applications/maniphest/typeahead/ManiphestTaskStatusFunctionDatasource.php

@@ -0,0 +1,22 @@
+<?php
+
+final class ManiphestTaskStatusFunctionDatasource
+  extends PhabricatorTypeaheadCompositeDatasource {
+
+  public function getBrowseTitle() {
+    return pht('Browse Statuses');
+  }
+
+  public function getPlaceholderText() {
+    return pht('Type a task status name or function...');
+  }
+
+  public function getComponentDatasources() {
+    return array(
+      new ManiphestTaskStatusDatasource(),
+      new ManiphestTaskClosedStatusDatasource(),
+      new ManiphestTaskOpenStatusDatasource(),
+    );
+  }
+
+}

src/applications/people/typeahead/PhabricatorViewerDatasource.php

@@ -15,6 +15,26 @@ final class PhabricatorViewerDatasource
     return 'PhabricatorPeopleApplication';
   }
 
+  public function getDatasourceFunctions() {
+    return array(
+      'viewer' => array(
+        'name' => pht('Current Viewer'),
+        'summary' => pht('Use the current viewing user.'),
+        'description' => pht(
+          'This function allows you to change the behavior of a query '.
+          'based on who is running it. When you use this function, you will '.
+          'be the current viewer, so it works like you typed your own '.
+          'username.'.
+          "\n\n".
+          'However, if you save a query using this function and send it '.
+          'to someone else, it will work like //their// username was the '.
+          'one that was typed. This can be useful for building dashboard '.
+          'panels that always show relevant information to the user who '.
+          'is looking at them.'),
+      ),
+    );
+  }
+
   public function loadResults() {
     if ($this->getViewer()->getPHID()) {
       $results = array($this->renderViewerFunctionToken());
@@ -30,7 +50,7 @@ final class PhabricatorViewerDatasource
       return false;
     }
 
-    return ($function == 'viewer');
+    return parent::canEvaluateFunction($function);
   }
 
   protected function evaluateFunction($function, array $argv_list) {

src/applications/typeahead/datasource/PhabricatorTypeaheadCompositeDatasource.php

@@ -162,5 +162,20 @@ abstract class PhabricatorTypeaheadCompositeDatasource
     return parent::renderFunctionTokens($function, $argv_list);
   }
 
+  protected function renderSpecialTokens(array $values) {
+    $result = array();
+    foreach ($this->getUsableDatasources() as $source) {
+      $special = $source->renderSpecialTokens($values);
+      foreach ($special as $key => $token) {
+        $result[$key] = $token;
+        unset($values[$key]);
+      }
+      if (!$values) {
+        break;
+      }
+    }
+    return $result;
+  }
+
 
 }

src/applications/typeahead/datasource/PhabricatorTypeaheadDatasource.php

@@ -229,6 +229,24 @@ abstract class PhabricatorTypeaheadDatasource extends Phobject {
       }
     }
 
+    // Give special non-function tokens which are also not PHIDs (like statuses
+    // and priorities) an opportunity to render.
+    $type_unknown = PhabricatorPHIDConstants::PHID_TYPE_UNKNOWN;
+    $special = array();
+    foreach ($values as $key => $value) {
+      if (phid_get_type($value) == $type_unknown) {
+        $special[$key] = $value;
+      }
+    }
+
+    if ($special) {
+      $special_tokens = $this->renderSpecialTokens($special);
+      foreach ($special_tokens as $key => $token) {
+        $tokens[$key] = $token;
+        unset($phids[$key]);
+      }
+    }
+
     if ($phids) {
       $handles = $this->getViewer()->loadHandles($phids);
       foreach ($phids as $key => $phid) {
@@ -265,6 +283,10 @@ abstract class PhabricatorTypeaheadDatasource extends Phobject {
     return array_select_keys($tokens, array_keys($values));
   }
 
+  protected function renderSpecialTokens(array $values) {
+    return array();
+  }
+
 /* -(  Token Functions  )---------------------------------------------------- */
 
 
@@ -424,12 +446,13 @@ abstract class PhabricatorTypeaheadDatasource extends Phobject {
   }
 
   protected function renderTokensFromResults(array $results, array $values) {
-    $results = array_select_keys($results, $values);
-
     $tokens = array();
-    foreach ($results as $result) {
-      $tokens[] = PhabricatorTypeaheadTokenView::newFromTypeaheadResult(
-        $result);
+    foreach ($values as $key => $value) {
+      if (empty($results[$value])) {
+        continue;
+      }
+      $tokens[$key] = PhabricatorTypeaheadTokenView::newFromTypeaheadResult(
+        $results[$value]);
     }
 
     return $tokens;