Bug 1409975 - Implement node distribution for shadow tree slots

* Implementation for assignedNodes
* Include slots in the flat tree
* Fix event get-the-parent algorithm for a node
* Update and add reftests for Shadow DOM v1
* Update web platform tests expectations

Tag #1375

7 files changed, 2 insertions, 214 deletions

diff --git a/testing/web-platform/meta/html/dom/interfaces.html.ini b/testing/web-platform/meta/html/dom/interfaces.html.ini
index db6a464d0a..d0ebb0c7d6 100644
--- a/testing/web-platform/meta/html/dom/interfaces.html.ini
+++ b/testing/web-platform/meta/html/dom/interfaces.html.ini
@@ -1,6 +1,6 @@
 [interfaces.html]
   type: testharness
-  prefs: [dom.forms.inputmode:true, dom.dialog_element.enabled:true]
+  prefs: [dom.forms.inputmode:true, dom.dialog_element.enabled:true, dom.webcomponents.enabled:true]
   [Document interface: attribute domain]
     expected: FAIL
 
@@ -2524,21 +2524,6 @@
   [HTMLSlotElement interface: operation assignedNodes(AssignedNodesOptions)]
     expected: FAIL
 
-  [HTMLSlotElement must be primary interface of document.createElement("slot")]
-    expected: FAIL
-
-  [Stringification of document.createElement("slot")]
-    expected: FAIL
-
-  [HTMLSlotElement interface: document.createElement("slot") must inherit property "name" with the proper type (0)]
-    expected: FAIL
-
-  [HTMLSlotElement interface: document.createElement("slot") must inherit property "assignedNodes" with the proper type (1)]
-    expected: FAIL
-
-  [HTMLSlotElement interface: calling assignedNodes(AssignedNodesOptions) on document.createElement("slot") with too few arguments must throw TypeError]
-    expected: FAIL
-
   [HTMLInputElement interface: createInput("text") must inherit property "dirName" with the proper type (6)]
     expected: FAIL
 
diff --git a/testing/web-platform/meta/html/dom/reflection-misc.html.ini b/testing/web-platform/meta/html/dom/reflection-misc.html.ini
index bc65d4191b..05bb9c4cdd 100644
--- a/testing/web-platform/meta/html/dom/reflection-misc.html.ini
+++ b/testing/web-platform/meta/html/dom/reflection-misc.html.ini
@@ -1,6 +1,6 @@
 [reflection-misc.html]
   type: testharness
-  prefs: [dom.dialog_element.enabled: true]
+  prefs: [dom.dialog_element.enabled: true, dom.webcomponents.enabled:true]
   [html.tabIndex: setAttribute() to object "3" followed by getAttribute()]
     expected: FAIL
 
diff --git a/testing/web-platform/meta/shadow-dom/HTMLSlotElement-interface.html.ini b/testing/web-platform/meta/shadow-dom/HTMLSlotElement-interface.html.ini
deleted file mode 100644
index c045a3006b..0000000000
--- a/testing/web-platform/meta/shadow-dom/HTMLSlotElement-interface.html.ini
+++ /dev/null
@@ -1,44 +0,0 @@
-[HTMLSlotElement-interface.html]
-  type: testharness
-  [HTMLSlotElement must be defined on window]
-    expected: FAIL
-
-  ["name" attribute on HTMLSlotElement must reflect "name" attribute]
-    expected: FAIL
-
-  [assignedNodes() on a HTMLSlotElement must return an empty array when the slot element is not in a tree or in a document tree]
-    expected: FAIL
-
-  [assignedNodes({"flattened":false}) on a HTMLSlotElement must return an empty array when the slot element is not in a tree or in a document tree]
-    expected: FAIL
-
-  [assignedNodes({"flattened":true}) on a HTMLSlotElement must return an empty array when the slot element is not in a tree or in a document tree]
-    expected: FAIL
-
-  [assignedNodes() must return the list of assigned nodes when none of the assigned nodes themselves are slots]
-    expected: FAIL
-
-  [assignedNodes({"flattened":false}) must return the list of assigned nodes when none of the assigned nodes themselves are slots]
-    expected: FAIL
-
-  [assignedNodes({"flattened":true}) must return the list of assigned nodes when none of the assigned nodes themselves are slots]
-    expected: FAIL
-
-  [assignedNodes() must update when slot and name attributes are modified]
-    expected: FAIL
-
-  [assignedNodes({"flattened":false}) must update when slot and name attributes are modified]
-    expected: FAIL
-
-  [assignedNodes({"flattened":true}) must update when slot and name attributes are modified]
-    expected: FAIL
-
-  [assignedNodes must update when a default slot is introduced dynamically by a slot rename]
-    expected: FAIL
-
-  [assignedNodes must update when slot elements are inserted or removed]
-    expected: FAIL
-
-  [assignedNodes({flatten: true}) must return the distributed nodes, and assignedNodes() and assignedNodes({flatten: false}) must returned the assigned nodes]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/Slotable-interface.html.ini b/testing/web-platform/meta/shadow-dom/Slotable-interface.html.ini
deleted file mode 100644
index 6ef193dee6..0000000000
--- a/testing/web-platform/meta/shadow-dom/Slotable-interface.html.ini
+++ /dev/null
@@ -1,12 +0,0 @@
-[Slotable-interface.html]
-  type: testharness
-  prefs: [dom.webcomponents.enabled:true]
-  [assignedSlot must return null when the node does not have an assigned node]
-    expected: FAIL
-
-  [assignedSlot must return the assigned slot]
-    expected: FAIL
-
-  [assignedSlot must return null when the assigned slot element is inside a closed shadow tree]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/event-inside-slotted-node.html.ini b/testing/web-platform/meta/shadow-dom/event-inside-slotted-node.html.ini
deleted file mode 100644
index 7e42670a30..0000000000
--- a/testing/web-platform/meta/shadow-dom/event-inside-slotted-node.html.ini
+++ /dev/null
@@ -1,38 +0,0 @@
-[event-inside-slotted-node.html]
-  type: testharness
-  [Firing an event inside a grand child of a detached open mode shadow host]
-    expected: FAIL
-
-  [Firing an event inside a grand child of a detached closed mode shadow host]
-    expected: FAIL
-
-  [Firing an event inside a grand child of an in-document open mode shadow host]
-    expected: FAIL
-
-  [Firing an event inside a grand child of an in-document closed mode shadow host]
-    expected: FAIL
-
-  [Firing an event on a node with two ancestors with a detached open and open shadow trees with an inner open shadow tree]
-    expected: FAIL
-
-  [Firing an event on a node with two ancestors with a detached open and open shadow trees with an inner closed shadow tree]
-    expected: FAIL
-
-  [Firing an event on a node with two ancestors with a detached open and closed shadow trees with an inner open shadow tree]
-    expected: FAIL
-
-  [Firing an event on a node with two ancestors with a detached open and closed shadow trees with an inner closed shadow tree]
-    expected: FAIL
-
-  [Firing an event on a node with two ancestors with a detached closed and open shadow trees with an inner open shadow tree]
-    expected: FAIL
-
-  [Firing an event on a node with two ancestors with a detached closed and open shadow trees with an inner closed shadow tree]
-    expected: FAIL
-
-  [Firing an event on a node with two ancestors with a detached closed and closed shadow trees with an inner open shadow tree]
-    expected: FAIL
-
-  [Firing an event on a node with two ancestors with a detached closed and closed shadow trees with an inner closed shadow tree]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/slots-fallback.html.ini b/testing/web-platform/meta/shadow-dom/slots-fallback.html.ini
deleted file mode 100644
index d32ae812b8..0000000000
--- a/testing/web-platform/meta/shadow-dom/slots-fallback.html.ini
+++ /dev/null
@@ -1,32 +0,0 @@
-[slots-fallback.html]
-  type: testharness
-  [Slots fallback: Basic.]
-    expected: FAIL
-
-  [Slots fallback: Slots in Slots.]
-    expected: FAIL
-
-  [Slots fallback: Fallback contents should not be used if a node is assigned.]
-    expected: FAIL
-
-  [Slots fallback: Slots in Slots: Assinged nodes should be used as fallback contents of another slot]
-    expected: FAIL
-
-  [Slots fallback: Complex case.]
-    expected: FAIL
-
-  [Slots fallback: Mutation. Append fallback contents.]
-    expected: FAIL
-
-  [Slots fallback: Mutation. Remove fallback contents.]
-    expected: FAIL
-
-  [Slots fallback: Mutation. Assign a node to a slot so that fallback contens are no longer used.]
-    expected: FAIL
-
-  [Slots fallback: Mutation. Remove an assigned node from a slot so that fallback contens will be used.]
-    expected: FAIL
-
-  [Slots fallback: Mutation.  Remove a slot which is a fallback content of another slot.]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/slots.html.ini b/testing/web-platform/meta/shadow-dom/slots.html.ini
deleted file mode 100644
index 3c047e4825..0000000000
--- a/testing/web-platform/meta/shadow-dom/slots.html.ini
+++ /dev/null
@@ -1,71 +0,0 @@
-[slots.html]
-  type: testharness
-  [Slots: Basic.]
-    expected: FAIL
-
-  [Slots: Slots in closed.]
-    expected: FAIL
-
-  [Slots: Slots not in a shadow tree.]
-    expected: FAIL
-
-  [Slots: Distributed nooes for Slots not in a shadow tree.]
-    expected: FAIL
-
-  [Slots: Name matching]
-    expected: FAIL
-
-  [Slots: No direct host child.]
-    expected: FAIL
-
-  [Slots: Default Slot.]
-    expected: FAIL
-
-  [Slots: Slot in Slot does not matter in assignment.]
-    expected: FAIL
-
-  [Slots: Slot is assigned to another slot]
-    expected: FAIL
-
-  [Slots: Open > Closed.]
-    expected: FAIL
-
-  [Slots: Closed > Closed.]
-    expected: FAIL
-
-  [Slots: Closed > Open.]
-    expected: FAIL
-
-  [Slots: Complex case: Basi line.]
-    expected: FAIL
-
-  [Slots: Mutation: appendChild.]
-    expected: FAIL
-
-  [Slots: Mutation: Change slot= attribute 1.]
-    expected: FAIL
-
-  [Slots: Mutation: Change slot= attribute 2.]
-    expected: FAIL
-
-  [Slots: Mutation: Change slot= attribute 3.]
-    expected: FAIL
-
-  [Slots: Mutation: Remove a child.]
-    expected: FAIL
-
-  [Slots: Mutation: Add a slot: after.]
-    expected: FAIL
-
-  [Slots: Mutation: Add a slot: before.]
-    expected: FAIL
-
-  [Slots: Mutation: Remove a slot.]
-    expected: FAIL
-
-  [Slots: Mutation: Change slot name= attribute.]
-    expected: FAIL
-
-  [Slots: Mutation: Change slot slot= attribute.]
-    expected: FAIL
-