Add EventHandlerRegistry

Source/core/dom/Document.cpp

Index: Source/core/dom/Document.cpp
diff --git a/Source/core/dom/Document.cpp b/Source/core/dom/Document.cpp
index 7289c58ac213b5ada57a4a448a49085969020804..d4921c78c1b26f50c7675e052172d0374abbd944 100644
--- a/Source/core/dom/Document.cpp
+++ b/Source/core/dom/Document.cpp
@@ -71,6 +71,7 @@
 #include "core/dom/Element.h"
 #include "core/dom/ElementDataCache.h"
 #include "core/dom/ElementTraversal.h"
+#include "core/dom/EventHandlerRegistry.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContextTask.h"
 #include "core/dom/MainThreadTaskRunner.h"
@@ -2095,12 +2096,14 @@ void Document::attach(const AttachContext& context)
         textAutosizer->updatePageInfo();
 
     m_lifecycle.advanceTo(DocumentLifecycle::StyleClean);
+    lifecycleNotifier().notifyDocumentWasAttached();
 }
 
 void Document::detach(const AttachContext& context)
 {
     ASSERT(isActive());
     m_lifecycle.advanceTo(DocumentLifecycle::Stopping);
+    lifecycleNotifier().notifyWillDetachDocument();
 
     if (page())
         page()->documentDetached(this);
@@ -2154,9 +2157,6 @@ void Document::detach(const AttachContext& context)
     if (renderView)
         renderView->destroy();
 
-    if (Document* parentDoc = parentDocument())
-        parentDoc->didClearTouchEventHandlers(this);
-
     // This is required, as our LocalFrame might delete itself as soon as it detaches
     // us. However, this violates Node::detach() semantics, as it's never
     // possible to re-attach. Eventually Document::detach() should be renamed,
@@ -5020,80 +5020,6 @@ PassRefPtrWillBeRawPtr<TouchList> Document::createTouchList(WillBeHeapVector<Ref
     return TouchList::create(touches);
 }
 
-void Document::didAddTouchEventHandler(Node* handler)
-{
-    // The node should either be in this document, or be the Document node of a child
-    // of this document.
-    ASSERT(&handler->document() == this
-        || (handler->isDocumentNode() && toDocument(handler)->parentDocument() == this));
-    if (!m_touchEventTargets.get())
-        m_touchEventTargets = adoptPtr(new TouchEventTargetSet);
-    bool isFirstHandler = m_touchEventTargets->isEmpty();
-
-    if (!m_touchEventTargets->add(handler).isNewEntry) {
-        // Just incremented refcount, no real change.
-        // If this is a child document node, then the count should never go above 1.
-        ASSERT(!handler->isDocumentNode() || &handler->document() == this);
-        return;
-    }
-
-    if (isFirstHandler) {
-        if (Document* parent = parentDocument()) {
-            parent->didAddTouchEventHandler(this);
-        } else {
-            // This is the first touch handler on the whole page.
-            if (FrameHost* frameHost = this->frameHost())
-                frameHost->chrome().client().needTouchEvents(true);
-        }
-    }
-
-    // When we're all done with all frames, ensure touch hit rects are marked as dirty.
-    if (!handler->isDocumentNode() || handler == this) {
-        if (Page* page = this->page()) {
-            if (ScrollingCoordinator* scrollingCoordinator = page->scrollingCoordinator())
-                scrollingCoordinator->touchEventTargetRectsDidChange();
-        }
-    }
-}
-
-void Document::didRemoveTouchEventHandler(Node* handler, bool clearAll)
-{
-    // Note that we can't assert that |handler| is in this document because it might be in
-    // the process of moving out of it.
-    ASSERT(clearAll || m_touchEventTargets->contains(handler));
-    if (!m_touchEventTargets.get())
-        return;
-
-    if (clearAll) {
-        if (!m_touchEventTargets->contains(handler))
-            return;
-        m_touchEventTargets->removeAll(handler);
-    } else {
-        if (!m_touchEventTargets->remove(handler))
-            // Just decremented refcount, no real update.
-            return;
-    }
-
-    if (m_touchEventTargets->isEmpty()) {
-        if (Document* parent = parentDocument()) {
-            // This was the last handler in this document, update the parent document too.
-            parent->didRemoveTouchEventHandler(this, clearAll);
-        } else {
-            // We just removed the last touch handler on the whole page.
-            if (FrameHost* frameHost = this->frameHost())
-                frameHost->chrome().client().needTouchEvents(false);
-        }
-    }
-
-    // When we're all done with all frames, ensure touch hit rects are marked as dirty.
-    if (!handler->isDocumentNode() || handler == this) {
-        if (Page* page = this->page()) {
-            if (ScrollingCoordinator* scrollingCoordinator = page->scrollingCoordinator())
-                scrollingCoordinator->touchEventTargetRectsDidChange();
-        }
-    }
-}
-
 void Document::resetLastHandledUserGestureTimestamp()
 {
     m_lastHandledUserGestureTimestamp = currentTime();