Bug 1309147 - Part 3: Implement the support for CEReactions in Codegen.

Tag UXP Issue #1344

1 files changed, 17 insertions, 0 deletions

diff --git a/dom/bindings/Codegen.py b/dom/bindings/Codegen.py
index 6fd15ac90c..5bbf77bb60 100644
--- a/dom/bindings/Codegen.py
+++ b/dom/bindings/Codegen.py
@@ -7672,6 +7672,17 @@ class CGPerSignatureCall(CGThing):
                 CGIfWrapper(CGList(xraySteps),
                             "objIsXray"))
 
+        if (idlNode.getExtendedAttribute('CEReactions') is not None and
+            not getter):
+            cgThings.append(CGGeneric(fill(
+                """
+                CustomElementReactionsStack* reactionsStack = GetCustomElementReactionsStack(${obj});
+                Maybe<AutoCEReaction> ceReaction;
+                if (reactionsStack) {
+                  ceReaction.emplace(reactionsStack);
+                }
+                """, obj=objectName)))
+
         # If this is a method that was generated by a maplike/setlike
         # interface, use the maplike/setlike generator to fill in the body.
         # Otherwise, use CGCallGenerator to call the native method.
@@ -13840,12 +13851,18 @@ class CGBindingRoot(CGThing):
             iface = desc.interface
             return any(m.getExtendedAttribute("Deprecated") for m in iface.members + [iface])
 
+        def descriptorHasCEReactions(desc):
+            iface = desc.interface
+            return any(m.getExtendedAttribute("CEReactions") for m in iface.members + [iface])
+
         bindingHeaders["nsIDocument.h"] = any(
             descriptorDeprecated(d) for d in descriptors)
         bindingHeaders["mozilla/Preferences.h"] = any(
             descriptorRequiresPreferences(d) for d in descriptors)
         bindingHeaders["mozilla/dom/DOMJSProxyHandler.h"] = any(
             d.concrete and d.proxy for d in descriptors)
+        bindingHeaders["mozilla/dom/CustomElementRegistry.h"] = any(
+            descriptorHasCEReactions(d) for d in descriptors)
 
         def descriptorHasChromeOnly(desc):
             ctor = desc.interface.ctor()