[M120 Migration] Implement hasEventListeners for Web Voice Touch

In order to support more elements in Web Voice Touch,
WebBrowser request new JS API for getting event listeners
attached to html element. So implemented the JS API:
bool hasEventListeners(const String eventType)

References:
  - https://review.tizen.org/gerrit/#/c/299220/

Change-Id: I077701f36eaf12f25161fda8b513127fa177533f
Signed-off-by: jiangyuwei <yuwei.jiang@samsung.com>

diff --git a/third_party/blink/renderer/core/dom/events/event_target.cc b/third_party/blink/renderer/core/dom/events/event_target.cc
index b62911feeb08f47a49260e82f42a7c097207de5e..241e934e9049ecf7f4d835473bb1ac0b6e3c21a4 100644 (file)
--- a/third_party/blink/renderer/core/dom/events/event_target.cc
+++ b/third_party/blink/renderer/core/dom/events/event_target.cc
@@ -586,6 +586,10 @@ bool EventTarget::removeEventListener(const AtomicString& event_type,
   return removeEventListener(event_type, event_listener, /*use_capture=*/false);
 }
 
+bool EventTarget::hasEventListeners(const AtomicString& event_type) {
+  return HasEventListeners(event_type);
+}
+
 bool EventTarget::removeEventListener(
     const AtomicString& event_type,
     V8EventListener* listener,

diff --git a/third_party/blink/renderer/core/dom/events/event_target.h b/third_party/blink/renderer/core/dom/events/event_target.h
index 022773b162917ff258eeabaeb126180ddf8fa0e3..768371b67148c1ae4acacb36315d3b725078ce83 100644 (file)
--- a/third_party/blink/renderer/core/dom/events/event_target.h
+++ b/third_party/blink/renderer/core/dom/events/event_target.h
@@ -171,6 +171,7 @@ class CORE_EXPORT EventTarget : public ScriptWrappable {
                            const EventListener*,
                            EventListenerOptions*);
   virtual void RemoveAllEventListeners();
+  bool hasEventListeners(const AtomicString& event_type);
 
   DispatchEventResult DispatchEvent(Event&);
 

diff --git a/third_party/blink/renderer/core/dom/events/event_target.idl b/third_party/blink/renderer/core/dom/events/event_target.idl
index 94c067867fee994274f529794a2aac12ea2b9f5c..ef2aa404b588c2b82f1c50d8a48f1ee42eb7b254 100644 (file)
--- a/third_party/blink/renderer/core/dom/events/event_target.idl
+++ b/third_party/blink/renderer/core/dom/events/event_target.idl
@@ -26,5 +26,6 @@
     [CallWith=ScriptState] constructor();
     void addEventListener(DOMString type, EventListener? listener, optional (AddEventListenerOptions or boolean) options);
     void removeEventListener(DOMString type, EventListener? listener, optional (EventListenerOptions or boolean) options);
+    boolean hasEventListeners(DOMString type);
     [ImplementedAs=dispatchEventForBindings, RaisesException, RuntimeCallStatsCounter=EventTargetDispatchEvent] boolean dispatchEvent(Event event);
 };