Support drag-and-drop to set cover images on workboard cards

Summary: This was slightly more complex than I believed, but not too terrible.

Test Plan:
{F1096126}

  - Also used some normal file uploaders to make sure I didn't break that.

Reviewers: chad

Reviewed By: chad

Differential Revision: https://secure.phabricator.com/D15202

resources/celerity/map.php

@@ -8,10 +8,10 @@
 return array(
   'names' => array(
     'core.pkg.css' => 'a7d4cf8f',
-    'core.pkg.js' => 'ef5e33db',
+    'core.pkg.js' => '808ae845',
     'darkconsole.pkg.js' => 'e7393ebb',
     'differential.pkg.css' => '2de124c9',
-    'differential.pkg.js' => '5c2ba922',
+    'differential.pkg.js' => '6b42b4bc',
     'diffusion.pkg.css' => 'f45955ed',
     'diffusion.pkg.js' => '3a9a8bfa',
     'maniphest.pkg.css' => '4845691a',
@@ -155,7 +155,7 @@ return array(
     'rsrc/css/phui/phui-timeline-view.css' => '2efceff8',
     'rsrc/css/phui/phui-two-column-view.css' => 'c75bfc5b',
     'rsrc/css/phui/workboards/phui-workboard.css' => 'b07a5524',
-    'rsrc/css/phui/workboards/phui-workcard.css' => 'adf34f58',
+    'rsrc/css/phui/workboards/phui-workcard.css' => 'a869098a',
     'rsrc/css/phui/workboards/phui-workpanel.css' => 'e1bd8d04',
     'rsrc/css/sprite-login.css' => '60e8560e',
     'rsrc/css/sprite-menu.css' => '9dd65b92',
@@ -414,7 +414,7 @@ return array(
     'rsrc/js/application/phortune/phortune-credit-card-form.js' => '2290aeef',
     'rsrc/js/application/policy/behavior-policy-control.js' => 'd0c516d5',
     'rsrc/js/application/policy/behavior-policy-rule-editor.js' => '5e9f347c',
-    'rsrc/js/application/projects/behavior-project-boards.js' => '48470f95',
+    'rsrc/js/application/projects/behavior-project-boards.js' => '5191522f',
     'rsrc/js/application/projects/behavior-project-create.js' => '065227cc',
     'rsrc/js/application/projects/behavior-reorder-columns.js' => 'e1d25dfb',
     'rsrc/js/application/releeph/releeph-preview-branch.js' => 'b2b4fbaf',
@@ -446,9 +446,9 @@ return array(
     'rsrc/js/application/uiexample/gesture-example.js' => '558829c2',
     'rsrc/js/application/uiexample/notification-example.js' => '8ce821c5',
     'rsrc/js/core/Busy.js' => '59a7976a',
-    'rsrc/js/core/DragAndDropFileUpload.js' => 'ad10aeac',
+    'rsrc/js/core/DragAndDropFileUpload.js' => 'da044194',
     'rsrc/js/core/DraggableList.js' => '8905523d',
-    'rsrc/js/core/FileUpload.js' => '477359c8',
+    'rsrc/js/core/FileUpload.js' => '680ea2c8',
     'rsrc/js/core/Hovercard.js' => '1bd28176',
     'rsrc/js/core/KeyboardShortcut.js' => '1ae869f2',
     'rsrc/js/core/KeyboardShortcutManager.js' => 'c1700f6f',
@@ -654,7 +654,7 @@ return array(
     'javelin-behavior-phui-profile-menu' => '12884df9',
     'javelin-behavior-policy-control' => 'd0c516d5',
     'javelin-behavior-policy-rule-editor' => '5e9f347c',
-    'javelin-behavior-project-boards' => '48470f95',
+    'javelin-behavior-project-boards' => '5191522f',
     'javelin-behavior-project-create' => '065227cc',
     'javelin-behavior-quicksand-blacklist' => '7927a7d3',
     'javelin-behavior-recurring-edit' => '5f1c4d5f',
@@ -741,11 +741,11 @@ return array(
     'phabricator-core-css' => '5b3563c8',
     'phabricator-countdown-css' => 'e7544472',
     'phabricator-dashboard-css' => 'eb458607',
-    'phabricator-drag-and-drop-file-upload' => 'ad10aeac',
+    'phabricator-drag-and-drop-file-upload' => 'da044194',
     'phabricator-draggable-list' => '8905523d',
     'phabricator-fatal-config-template-css' => '8e6c6fcd',
     'phabricator-feed-css' => 'ecd4ec57',
-    'phabricator-file-upload' => '477359c8',
+    'phabricator-file-upload' => '680ea2c8',
     'phabricator-filetree-view-css' => 'fccf9f82',
     'phabricator-flag-css' => '5337623f',
     'phabricator-keyboard-shortcut' => '1ae869f2',
@@ -832,7 +832,7 @@ return array(
     'phui-timeline-view-css' => '2efceff8',
     'phui-two-column-view-css' => 'c75bfc5b',
     'phui-workboard-view-css' => 'b07a5524',
-    'phui-workcard-view-css' => 'adf34f58',
+    'phui-workcard-view-css' => 'a869098a',
     'phui-workpanel-view-css' => 'e1bd8d04',
     'phuix-action-list-view' => 'b5c256b8',
     'phuix-action-view' => '8cf6d262',
@@ -1133,11 +1133,6 @@ return array(
       'javelin-dom',
       'javelin-workflow',
     ),
-    '477359c8' => array(
-      'javelin-install',
-      'javelin-dom',
-      'phabricator-notification',
-    ),
     47830651 => array(
       'javelin-behavior',
       'javelin-dom',
@@ -1154,15 +1149,6 @@ return array(
       'javelin-dom',
       'javelin-workflow',
     ),
-    '48470f95' => array(
-      'javelin-behavior',
-      'javelin-dom',
-      'javelin-util',
-      'javelin-vector',
-      'javelin-stratcom',
-      'javelin-workflow',
-      'phabricator-draggable-list',
-    ),
     '49b73b36' => array(
       'javelin-behavior',
       'javelin-dom',
@@ -1204,6 +1190,16 @@ return array(
       'javelin-typeahead-source',
       'javelin-util',
     ),
+    '5191522f' => array(
+      'javelin-behavior',
+      'javelin-dom',
+      'javelin-util',
+      'javelin-vector',
+      'javelin-stratcom',
+      'javelin-workflow',
+      'phabricator-draggable-list',
+      'phabricator-drag-and-drop-file-upload',
+    ),
     '519705ea' => array(
       'javelin-install',
       'javelin-dom',
@@ -1331,6 +1327,11 @@ return array(
       'javelin-request',
       'javelin-workflow',
     ),
+    '680ea2c8' => array(
+      'javelin-install',
+      'javelin-dom',
+      'phabricator-notification',
+    ),
     '6882e80a' => array(
       'javelin-dom',
     ),
@@ -1674,14 +1675,6 @@ return array(
       'javelin-util',
       'phabricator-busy',
     ),
-    'ad10aeac' => array(
-      'javelin-install',
-      'javelin-util',
-      'javelin-request',
-      'javelin-dom',
-      'javelin-uri',
-      'phabricator-file-upload',
-    ),
     'b064af76' => array(
       'javelin-behavior',
       'javelin-stratcom',
@@ -1897,6 +1890,14 @@ return array(
       'javelin-util',
       'phabricator-shaped-request',
     ),
+    'da044194' => array(
+      'javelin-install',
+      'javelin-util',
+      'javelin-request',
+      'javelin-dom',
+      'javelin-uri',
+      'phabricator-file-upload',
+    ),
     'dbbf48b6' => array(
       'javelin-behavior',
       'javelin-stratcom',

src/__phutil_library_map__.php

@@ -2880,6 +2880,7 @@ phutil_register_library_map(array(
     'PhabricatorProjectConfiguredCustomField' => 'applications/project/customfield/PhabricatorProjectConfiguredCustomField.php',
     'PhabricatorProjectController' => 'applications/project/controller/PhabricatorProjectController.php',
     'PhabricatorProjectCoreTestCase' => 'applications/project/__tests__/PhabricatorProjectCoreTestCase.php',
+    'PhabricatorProjectCoverController' => 'applications/project/controller/PhabricatorProjectCoverController.php',
     'PhabricatorProjectCustomField' => 'applications/project/customfield/PhabricatorProjectCustomField.php',
     'PhabricatorProjectCustomFieldNumericIndex' => 'applications/project/storage/PhabricatorProjectCustomFieldNumericIndex.php',
     'PhabricatorProjectCustomFieldStorage' => 'applications/project/storage/PhabricatorProjectCustomFieldStorage.php',
@@ -7304,6 +7305,7 @@ phutil_register_library_map(array(
     ),
     'PhabricatorProjectController' => 'PhabricatorController',
     'PhabricatorProjectCoreTestCase' => 'PhabricatorTestCase',
+    'PhabricatorProjectCoverController' => 'PhabricatorProjectController',
     'PhabricatorProjectCustomField' => 'PhabricatorCustomField',
     'PhabricatorProjectCustomFieldNumericIndex' => 'PhabricatorCustomFieldNumericIndexStorage',
     'PhabricatorProjectCustomFieldStorage' => 'PhabricatorCustomFieldStorage',

src/applications/maniphest/editor/ManiphestTransactionEditor.php

@@ -28,6 +28,7 @@ final class ManiphestTransactionEditor
     $types[] = ManiphestTransaction::TYPE_UNBLOCK;
     $types[] = ManiphestTransaction::TYPE_PARENT;
     $types[] = ManiphestTransaction::TYPE_COLUMN;
+    $types[] = ManiphestTransaction::TYPE_COVER_IMAGE;
     $types[] = PhabricatorTransactions::TYPE_VIEW_POLICY;
     $types[] = PhabricatorTransactions::TYPE_EDIT_POLICY;
 
@@ -66,6 +67,8 @@ final class ManiphestTransactionEditor
         return $xaction->getOldValue();
       case ManiphestTransaction::TYPE_SUBPRIORITY:
         return $object->getSubpriority();
+      case ManiphestTransaction::TYPE_COVER_IMAGE:
+        return $object->getCoverImageFilePHID();
       case ManiphestTransaction::TYPE_MERGED_INTO:
       case ManiphestTransaction::TYPE_MERGED_FROM:
         return null;
@@ -92,6 +95,7 @@ final class ManiphestTransactionEditor
       case ManiphestTransaction::TYPE_MERGED_INTO:
       case ManiphestTransaction::TYPE_MERGED_FROM:
       case ManiphestTransaction::TYPE_UNBLOCK:
+      case ManiphestTransaction::TYPE_COVER_IMAGE:
         return $xaction->getNewValue();
       case ManiphestTransaction::TYPE_PARENT:
       case ManiphestTransaction::TYPE_COLUMN:
@@ -161,6 +165,32 @@ final class ManiphestTransactionEditor
       case ManiphestTransaction::TYPE_MERGED_INTO:
         $object->setStatus(ManiphestTaskStatus::getDuplicateStatus());
         return;
+      case ManiphestTransaction::TYPE_COVER_IMAGE:
+        $file_phid = $xaction->getNewValue();
+
+        if ($file_phid) {
+          $file = id(new PhabricatorFileQuery())
+            ->setViewer($this->getActor())
+            ->withPHIDs(array($file_phid))
+            ->executeOne();
+        } else {
+          $file = null;
+        }
+
+        if (!$file || !$file->isTransformableImage()) {
+          $object->setProperty('cover.filePHID', null);
+          $object->setProperty('cover.thumbnailPHID', null);
+          return;
+        }
+
+        $xform_key = PhabricatorFileThumbnailTransform::TRANSFORM_WORKCARD;
+
+        $xform = PhabricatorFileTransform::getTransformByKey($xform_key)
+          ->executeTransform($file);
+
+        $object->setProperty('cover.filePHID', $file->getPHID());
+        $object->setProperty('cover.thumbnailPHID', $xform->getPHID());
+        return;
       case ManiphestTransaction::TYPE_MERGED_FROM:
       case ManiphestTransaction::TYPE_PARENT:
       case ManiphestTransaction::TYPE_COLUMN:
@@ -819,6 +849,41 @@ final class ManiphestTransactionEditor
           }
         }
         break;
+      case ManiphestTransaction::TYPE_COVER_IMAGE:
+        foreach ($xactions as $xaction) {
+          $old = $xaction->getOldValue();
+          $new = $xaction->getNewValue();
+          if (!$new) {
+            continue;
+          }
+
+          if ($new === $old) {
+            continue;
+          }
+
+          $file = id(new PhabricatorFileQuery())
+            ->setViewer($this->getActor())
+            ->withPHIDs(array($new))
+            ->executeOne();
+          if (!$file) {
+            $errors[] = new PhabricatorApplicationTransactionValidationError(
+              $type,
+              pht('Invalid'),
+              pht('File "%s" is not valid.', $new),
+              $xaction);
+            continue;
+          }
+
+          if (!$file->isTransformableImage()) {
+            $errors[] = new PhabricatorApplicationTransactionValidationError(
+              $type,
+              pht('Invalid'),
+              pht('File "%s" is not a valid image file.', $new),
+              $xaction);
+            continue;
+          }
+        }
+        break;
     }
 
     return $errors;
@@ -941,5 +1006,19 @@ final class ManiphestTransactionEditor
       ->executeOne();
   }
 
+  protected function extractFilePHIDsFromCustomTransaction(
+    PhabricatorLiskDAO $object,
+    PhabricatorApplicationTransaction $xaction) {
+    $phids = parent::extractFilePHIDsFromCustomTransaction($object, $xaction);
+
+    switch ($xaction->getTransactionType()) {
+      case ManiphestTransaction::TYPE_COVER_IMAGE:
+        $phids[] = $xaction->getNewValue();
+        break;
+    }
+
+    return $phids;
+  }
+
 
 }

src/applications/maniphest/storage/ManiphestTask.php

@@ -226,6 +226,10 @@ final class ManiphestTask extends ManiphestDAO
     return idx($this->properties, $key, $default);
   }
 
+  public function getCoverImageFilePHID() {
+    return idx($this->properties, 'cover.filePHID');
+  }
+
   public function getCoverImageThumbnailPHID() {
     return idx($this->properties, 'cover.thumbnailPHID');
   }

src/applications/maniphest/storage/ManiphestTransaction.php

@@ -16,6 +16,7 @@ final class ManiphestTransaction
   const TYPE_UNBLOCK = 'unblock';
   const TYPE_PARENT = 'parent';
   const TYPE_COLUMN = 'column';
+  const TYPE_COVER_IMAGE = 'cover-image';
 
   // NOTE: this type is deprecated. Keep it around for legacy installs
   // so any transactions render correctly.
@@ -162,6 +163,9 @@ final class ManiphestTransaction
         sort($new_cols);
 
         return ($old_cols === $new_cols);
+      case self::TYPE_COVER_IMAGE:
+        // At least for now, don't show these.
+        return true;
     }
 
     return parent::shouldHide();

src/applications/project/application/PhabricatorProjectApplication.php

@@ -72,6 +72,7 @@ final class PhabricatorProjectApplication extends PhabricatorApplication {
           '(?:query/(?P<queryKey>[^/]+)/)?'
           => 'PhabricatorProjectBoardViewController',
         'move/(?P<id>[1-9]\d*)/' => 'PhabricatorProjectMoveController',
+        'cover/' => 'PhabricatorProjectCoverController',
         'board/(?P<projectID>[1-9]\d*)/' => array(
           'edit/(?:(?P<id>\d+)/)?'
             => 'PhabricatorProjectColumnEditController',

src/applications/project/controller/PhabricatorProjectBoardViewController.php

@@ -219,6 +219,9 @@ final class PhabricatorProjectBoardViewController
       'projectPHID' => $project->getPHID(),
       'moveURI' => $this->getApplicationURI('move/'.$project->getID().'/'),
       'createURI' => $this->getCreateURI(),
+      'uploadURI' => '/file/dropupload/',
+      'coverURI' => $this->getApplicationURI('cover/'),
+      'chunkThreshold' => PhabricatorFileStorageEngine::getChunkThreshold(),
       'order' => $this->sortKey,
     );
     $this->initBehavior(

src/applications/project/controller/PhabricatorProjectController.php

@@ -147,4 +147,53 @@ abstract class PhabricatorProjectController extends PhabricatorController {
     return $this;
   }
 
+  protected function newCardResponse($board_phid, $object_phid) {
+    $viewer = $this->getViewer();
+
+    $project = id(new PhabricatorProjectQuery())
+      ->setViewer($viewer)
+      ->withPHIDs(array($board_phid))
+      ->executeOne();
+    if (!$project) {
+      return new Aphront404Response();
+    }
+
+    // Reload the object so it reflects edits which have been applied.
+    $object = id(new ManiphestTaskQuery())
+      ->setViewer($viewer)
+      ->withPHIDs(array($object_phid))
+      ->needProjectPHIDs(true)
+      ->executeOne();
+    if (!$object) {
+      return new Aphront404Response();
+    }
+
+    $except_phids = array($board_phid);
+    if ($project->getHasSubprojects() || $project->getHasMilestones()) {
+      $descendants = id(new PhabricatorProjectQuery())
+        ->setViewer($viewer)
+        ->withAncestorProjectPHIDs($except_phids)
+        ->execute();
+      foreach ($descendants as $descendant) {
+        $except_phids[] = $descendant->getPHID();
+      }
+    }
+
+    $rendering_engine = id(new PhabricatorBoardRenderingEngine())
+      ->setViewer($viewer)
+      ->setObjects(array($object))
+      ->setExcludedProjectPHIDs($except_phids);
+
+    $card = $rendering_engine->renderCard($object->getPHID());
+
+    $item = $card->getItem();
+    $item->addClass('phui-workcard');
+
+    return id(new AphrontAjaxResponse())
+      ->setContent(
+        array(
+          'task' => $item,
+        ));
+  }
+
 }

src/applications/project/controller/PhabricatorProjectCoverController.php

@@ -0,0 +1,53 @@
+<?php
+
+final class PhabricatorProjectCoverController
+  extends PhabricatorProjectController {
+
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
+
+    $request->validateCSRF();
+
+    $board_phid = $request->getStr('boardPHID');
+    $object_phid = $request->getStr('objectPHID');
+    $file_phid = $request->getStr('filePHID');
+
+    $object = id(new ManiphestTaskQuery())
+      ->setViewer($viewer)
+      ->withPHIDs(array($object_phid))
+      ->requireCapabilities(
+        array(
+          PhabricatorPolicyCapability::CAN_VIEW,
+          PhabricatorPolicyCapability::CAN_EDIT,
+        ))
+      ->executeOne();
+    if (!$object) {
+      return new Aphront404Response();
+    }
+
+    $file = id(new PhabricatorFileQuery())
+      ->setViewer($viewer)
+      ->withPHIDs(array($file_phid))
+      ->executeOne();
+    if (!$file) {
+      return new Aphront404Response();
+    }
+
+    $xactions = array();
+
+    $xactions[] = id(new ManiphestTransaction())
+      ->setTransactionType(ManiphestTransaction::TYPE_COVER_IMAGE)
+      ->setNewValue($file->getPHID());
+
+    $editor = id(new ManiphestTransactionEditor())
+      ->setActor($viewer)
+      ->setContinueOnMissingFields(true)
+      ->setContinueOnNoEffect(true)
+      ->setContentSourceFromRequest($request);
+
+    $editor->applyTransactions($object, $xactions);
+
+    return $this->newCardResponse($board_phid, $object_phid);
+  }
+
+}

src/applications/project/controller/PhabricatorProjectMoveController.php

@@ -7,13 +7,14 @@ final class PhabricatorProjectMoveController
     $viewer = $request->getViewer();
     $id = $request->getURIData('id');
 
+    $request->validateCSRF();
+
     $column_phid = $request->getStr('columnPHID');
     $object_phid = $request->getStr('objectPHID');
     $after_phid = $request->getStr('afterPHID');
     $before_phid = $request->getStr('beforePHID');
     $order = $request->getStr('order', PhabricatorProjectColumn::DEFAULT_ORDER);
 
-
     $project = id(new PhabricatorProjectQuery())
       ->setViewer($viewer)
       ->requireCapabilities(
@@ -175,39 +176,7 @@ final class PhabricatorProjectMoveController
 
     $editor->applyTransactions($object, $xactions);
 
-    // Reload the object so it reflects edits which have been applied.
+    return $this->newCardResponse($board_phid, $object_phid);
-    $object = id(new ManiphestTaskQuery())
-      ->setViewer($viewer)
-      ->withPHIDs(array($object_phid))
-      ->needProjectPHIDs(true)
-      ->executeOne();
-
-    $except_phids = array($board_phid);
-    if ($project->getHasSubprojects() || $project->getHasMilestones()) {
-      $descendants = id(new PhabricatorProjectQuery())
-        ->setViewer($viewer)
-        ->withAncestorProjectPHIDs($except_phids)
-        ->execute();
-      foreach ($descendants as $descendant) {
-        $except_phids[] = $descendant->getPHID();
-      }
-    }
-
-    $rendering_engine = id(new PhabricatorBoardRenderingEngine())
-      ->setViewer($viewer)
-      ->setObjects(array($object))
-      ->setExcludedProjectPHIDs($except_phids);
-
-    $card = $rendering_engine->renderCard($object->getPHID());
-
-    $item = $card->getItem();
-    $item->addClass('phui-workcard');
-
-    return id(new AphrontAjaxResponse())
-      ->setContent(
-        array(
-          'task' => $item,
-        ));
   }
 
 }

webroot/rsrc/css/phui/workboards/phui-workcard.css

@@ -106,6 +106,10 @@
   width: 263px;
 }
 
+.phui-workcard.phui-object-item.phui-workcard-upload-target {
+  background-color: {$sh-greenbackground};
+}
+
 
 /* - Draggable Colors --------------------------------------------------------*/
 

webroot/rsrc/js/application/projects/behavior-project-boards.js

@@ -7,6 +7,7 @@
  *           javelin-stratcom
  *           javelin-workflow
  *           phabricator-draggable-list
+ *           phabricator-drag-and-drop-file-upload
  */
 
 JX.behavior('project-boards', function(config, statics) {
@@ -348,6 +349,39 @@ JX.behavior('project-boards', function(config, statics) {
           init_board();
         }
       });
+
+    if (JX.PhabricatorDragAndDropFileUpload.isSupported()) {
+      var drop = new JX.PhabricatorDragAndDropFileUpload('project-card')
+        .setURI(config.uploadURI)
+        .setChunkThreshold(config.chunkThreshold);
+
+      drop.listen('didBeginDrag', function(node) {
+        JX.DOM.alterClass(node, 'phui-workcard-upload-target', true);
+      });
+
+      drop.listen('didEndDrag', function(node) {
+        JX.DOM.alterClass(node, 'phui-workcard-upload-target', false);
+      });
+
+      drop.listen('didUpload', function(file) {
+        var node = file.getTargetNode();
+
+        var data = {
+          boardPHID: statics.projectPHID,
+          objectPHID: JX.Stratcom.getData(node).objectPHID,
+          filePHID: file.getPHID()
+        };
+
+        new JX.Workflow(config.coverURI, data)
+          .setHandler(function(r) {
+            JX.DOM.replace(node, JX.$H(r.task));
+          })
+          .start();
+      });
+
+      drop.start();
+    }
+
     return true;
   }
 

webroot/rsrc/js/core/DragAndDropFileUpload.js

@@ -11,8 +11,12 @@
 
 JX.install('PhabricatorDragAndDropFileUpload', {
 
-  construct : function(node) {
+  construct : function(target) {
-    this._node = node;
+    if (JX.DOM.isNode(target)) {
+      this._node = target;
+    } else {
+      this._sigil = target;
+    }
   },
 
   events : [
@@ -39,6 +43,7 @@ JX.install('PhabricatorDragAndDropFileUpload', {
 
   members : {
     _node : null,
+    _sigil: null,
     _depth : 0,
     _isEnabled: false,
 
@@ -53,18 +58,21 @@ JX.install('PhabricatorDragAndDropFileUpload', {
 
     _updateDepth : function(delta) {
       if (this._depth === 0 && delta > 0) {
-        this.invoke('didBeginDrag');
+        this.invoke('didBeginDrag', this._getTarget());
       }
 
       this._depth += delta;
 
       if (this._depth === 0 && delta < 0) {
-        this.invoke('didEndDrag');
+        this.invoke('didEndDrag', this._getTarget());
       }
     },
 
-    start : function() {
+    _getTarget: function() {
+      return this._target || this._node;
+    },
 
+    start : function() {
 
       // TODO: move this to JX.DOM.contains()?
       function contains(container, child) {
@@ -80,87 +88,87 @@ JX.install('PhabricatorDragAndDropFileUpload', {
 
       // Firefox has some issues sometimes; implement this click handler so
       // the user can recover. See T5188.
-      JX.DOM.listen(
+      var on_click = JX.bind(this, function (e) {
-        this._node,
+        if (!this.getIsEnabled()) {
-        'click',
+          return;
-        null,
+        }
-        JX.bind(this, function (e) {
+
-          if (!this.getIsEnabled()) {
+        if (this._depth) {
-            return;
+          e.kill();
-          }
+          // Force depth to 0.
-          if (this._depth) {
+          this._updateDepth(-this._depth);
-            e.kill();
+        }
-            // Force depth to 0.
+      });
-            this._updateDepth(-this._depth);
-          }
-        }));
 
       // We track depth so that the _node may have children inside of it and
       // not become unselected when they are dragged over.
-      JX.DOM.listen(
+      var on_dragenter = JX.bind(this, function(e) {
-        this._node,
+        if (!this.getIsEnabled()) {
-        'dragenter',
+          return;
-        null,
+        }
-        JX.bind(this, function(e) {
-          if (!this.getIsEnabled()) {
-            return;
-          }
 
-          if (contains(this._node, e.getTarget())) {
+        if (!this._node && !this._depth) {
-            this._updateDepth(1);
+          this._target = e.getNode(this._sigil);
-          }
+        }
-        }));
 
-      JX.DOM.listen(
+        if (contains(this._getTarget(), e.getTarget())) {
-        this._node,
+          this._updateDepth(1);
-        'dragleave',
+        }
-        null,
+      });
-        JX.bind(this, function(e) {
-          if (!this.getIsEnabled()) {
-            return;
-          }
 
-          if (contains(this._node, e.getTarget())) {
+      var on_dragleave = JX.bind(this, function(e) {
-            this._updateDepth(-1);
+        if (!this.getIsEnabled()) {
-          }
+          return;
-        }));
+        }
 
-      JX.DOM.listen(
+        if (contains(this._getTarget(), e.getTarget())) {
-        this._node,
+          this._updateDepth(-1);
-        'dragover',
+        }
-        null,
+      });
-        JX.bind(this, function(e) {
-          if (!this.getIsEnabled()) {
-            return;
-          }
 
-          // NOTE: We must set this, or Chrome refuses to drop files from the
+      var on_dragover = JX.bind(this, function(e) {
-          // download shelf.
+        if (!this.getIsEnabled()) {
-          e.getRawEvent().dataTransfer.dropEffect = 'copy';
+          return;
-          e.kill();
+        }
-        }));
 
-      JX.DOM.listen(
+        // NOTE: We must set this, or Chrome refuses to drop files from the
-        this._node,
+        // download shelf.
-        'drop',
+        e.getRawEvent().dataTransfer.dropEffect = 'copy';
-        null,
+        e.kill();
-        JX.bind(this, function(e) {
+      });
-          if (!this.getIsEnabled()) {
-            return;
-          }
 
-          e.kill();
+      var on_drop = JX.bind(this, function(e) {
+        if (!this.getIsEnabled()) {
+          return;
+        }
 
-          var files = e.getRawEvent().dataTransfer.files;
+        e.kill();
-          for (var ii = 0; ii < files.length; ii++) {
-            this._sendRequest(files[ii]);
-          }
 
-          // Force depth to 0.
+        var files = e.getRawEvent().dataTransfer.files;
-          this._updateDepth(-this._depth);
+        for (var ii = 0; ii < files.length; ii++) {
-        }));
+          this._sendRequest(files[ii]);
+        }
 
-      if (JX.PhabricatorDragAndDropFileUpload.isPasteSupported()) {
+        // Force depth to 0.
+        this._updateDepth(-this._depth);
+      });
+
+      if (this._node) {
+        JX.DOM.listen(this._node, 'click', null, on_click);
+        JX.DOM.listen(this._node, 'dragenter', null, on_dragenter);
+        JX.DOM.listen(this._node, 'dragleave', null, on_dragleave);
+        JX.DOM.listen(this._node, 'dragover', null, on_dragover);
+        JX.DOM.listen(this._node, 'drop', null, on_drop);
+      } else {
+        JX.Stratcom.listen('click', this._sigil, on_click);
+        JX.Stratcom.listen('dragenter', this._sigil, on_dragenter);
+        JX.Stratcom.listen('dragleave', this._sigil, on_dragleave);
+        JX.Stratcom.listen('dragover', this._sigil, on_dragover);
+        JX.Stratcom.listen('drop', this._sigil, on_drop);
+      }
+
+      if (JX.PhabricatorDragAndDropFileUpload.isPasteSupported() &&
+          this._node) {
         JX.DOM.listen(
           this._node,
           'paste',
@@ -399,6 +407,7 @@ JX.install('PhabricatorDragAndDropFileUpload', {
         .setURI(r.uri)
         .setMarkup(r.html)
         .setStatus('done')
+        .setTargetNode(this._getTarget())
         .update();
 
       this.invoke('didUpload', file);

webroot/rsrc/js/core/FileUpload.js

@@ -23,6 +23,7 @@ JX.install('PhabricatorFileUpload', {
     URI: null,
     status: null,
     markup: null,
+    targetNode: null,
     error: null
   },