diff -r 000000000000 -r 6474c204b198 accessible/src/base/Logging.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessible/src/base/Logging.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,197 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_a11y_logs_h__
+#define mozilla_a11y_logs_h__
+
+#include "nscore.h"
+#include "nsStringFwd.h"
+
+class nsIDocument;
+class nsINode;
+class nsIRequest;
+class nsISelection;
+class nsISupports;
+class nsIWebProgress;
+
+namespace mozilla {
+namespace a11y {
+
+class AccEvent;
+class Accessible;
+class DocAccessible;
+class OuterDocAccessible;
+
+namespace logging {
+
+enum EModules {
+  eDocLoad = 1 << 0,
+  eDocCreate = 1 << 1,
+  eDocDestroy = 1 << 2,
+  eDocLifeCycle = eDocLoad | eDocCreate | eDocDestroy,
+
+  eEvents = 1 << 3,
+  ePlatforms = 1 << 4,
+  eStack = 1 << 5,
+  eText = 1 << 6,
+  eTree = 1 << 7,
+
+  eDOMEvents = 1 << 8,
+  eFocus = 1 << 9,
+  eSelection = 1 << 10,
+  eNotifications = eDOMEvents | eSelection | eFocus
+};
+
+/**
+ * Return true if any of the given modules is logged.
+ */
+bool IsEnabled(uint32_t aModules);
+
+/**
+ * Return true if the given module is logged.
+ */
+bool IsEnabled(const nsAString& aModules);
+
+/**
+ * Log the document loading progress.
+ */
+void DocLoad(const char* aMsg, nsIWebProgress* aWebProgress,
+             nsIRequest* aRequest, uint32_t aStateFlags);
+void DocLoad(const char* aMsg, nsIDocument* aDocumentNode);
+void DocCompleteLoad(DocAccessible* aDocument, bool aIsLoadEventTarget);
+
+/**
+ * Log that document load event was fired.
+ */
+void DocLoadEventFired(AccEvent* aEvent);
+
+/**
+ * Log that document laod event was handled.
+ */
+void DocLoadEventHandled(AccEvent* aEvent);
+
+/**
+ * Log the document was created.
+ */
+void DocCreate(const char* aMsg, nsIDocument* aDocumentNode,
+               DocAccessible* aDocument = nullptr);
+
+/**
+ * Log the document was destroyed.
+ */
+void DocDestroy(const char* aMsg, nsIDocument* aDocumentNode,
+                DocAccessible* aDocument = nullptr);
+
+/**
+ * Log the outer document was destroyed.
+ */
+void OuterDocDestroy(OuterDocAccessible* OuterDoc);
+
+/**
+ * Log the focus notification target.
+ */
+void FocusNotificationTarget(const char* aMsg, const char* aTargetDescr,
+                             Accessible* aTarget);
+void FocusNotificationTarget(const char* aMsg, const char* aTargetDescr,
+                             nsINode* aTargetNode);
+void FocusNotificationTarget(const char* aMsg, const char* aTargetDescr,
+                             nsISupports* aTargetThing);
+
+/**
+ * Log a cause of active item descendant change (submessage).
+ */
+void ActiveItemChangeCausedBy(const char* aMsg, Accessible* aTarget);
+
+/**
+ * Log the active widget (submessage).
+ */
+void ActiveWidget(Accessible* aWidget);
+
+/**
+ * Log the focus event was dispatched (submessage).
+ */
+void FocusDispatched(Accessible* aTarget);
+
+/**
+ * Log the selection change.
+ */
+void SelChange(nsISelection* aSelection, DocAccessible* aDocument,
+               int16_t aReason);
+
+/**
+ * Log the message ('title: text' format) on new line. Print the start and end
+ * boundaries of the message body designated by '{' and '}' (2 spaces indent for
+ * body).
+ */
+void MsgBegin(const char* aTitle, const char* aMsgText, ...);
+void MsgEnd();
+
+/**
+ * Print start and end boundaries of the message body designated by '{' and '}'
+ * (2 spaces indent for body).
+ */
+void SubMsgBegin();
+void SubMsgEnd();
+
+/**
+ * Log the entry into message body (4 spaces indent).
+ */
+void MsgEntry(const char* aEntryText, ...);
+
+/**
+ * Log the text, two spaces offset is used.
+ */
+void Text(const char* aText);
+
+/**
+ * Log the accessible object address as message entry (4 spaces indent).
+ */
+void Address(const char* aDescr, Accessible* aAcc);
+
+/**
+ * Log the DOM node info as message entry.
+ */
+void Node(const char* aDescr, nsINode* aNode);
+
+/**
+ * Log the document accessible info as message entry.
+ */
+void Document(DocAccessible* aDocument);
+
+/**
+ * Log the accessible and its DOM node as a message entry.
+ */
+void AccessibleNNode(const char* aDescr, Accessible* aAccessible);
+void AccessibleNNode(const char* aDescr, nsINode* aNode);
+
+/**
+ * Log the DOM event.
+ */
+void DOMEvent(const char* aDescr, nsINode* aOrigTarget,
+              const nsAString& aEventType);
+
+/**
+ * Log the call stack, two spaces offset is used.
+ */
+void Stack();
+
+/**
+ * Enable logging of the specified modules, all other modules aren't logged.
+ */
+void Enable(const nsAFlatCString& aModules);
+
+/**
+ * Enable logging of modules specified by A11YLOG environment variable,
+ * all other modules aren't logged.
+ */
+void CheckEnv();
+
+} // namespace logs
+} // namespace a11y
+} // namespace mozilla
+
+#endif
+