Add m-esr52 at 52.6.0

1 files changed, 102 insertions, 0 deletions

diff --git a/layout/xul/nsXULTooltipListener.h b/layout/xul/nsXULTooltipListener.h
new file mode 100644
index 000000000..51e0a2c3f
--- /dev/null
+++ b/layout/xul/nsXULTooltipListener.h
@@ -0,0 +1,102 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 nsXULTooltipListener_h__
+#define nsXULTooltipListener_h__
+
+#include "nsIDOMEventListener.h"
+#include "nsIDOMMouseEvent.h"
+#include "nsIDOMElement.h"
+#include "nsITimer.h"
+#include "nsCOMPtr.h"
+#include "nsString.h"
+#ifdef MOZ_XUL
+#include "nsITreeBoxObject.h"
+#include "nsITreeColumns.h"
+#endif
+#include "nsWeakPtr.h"
+#include "mozilla/Attributes.h"
+
+class nsIContent;
+
+class nsXULTooltipListener final : public nsIDOMEventListener
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIDOMEVENTLISTENER
+
+  void MouseOut(nsIDOMEvent* aEvent);
+  void MouseMove(nsIDOMEvent* aEvent);
+
+  nsresult AddTooltipSupport(nsIContent* aNode);
+  nsresult RemoveTooltipSupport(nsIContent* aNode);
+  static nsXULTooltipListener* GetInstance() {
+    if (!mInstance)
+      mInstance = new nsXULTooltipListener();
+    return mInstance;
+  }
+  static void ClearTooltipCache() { mInstance = nullptr; }
+
+protected:
+
+  nsXULTooltipListener();
+  ~nsXULTooltipListener();
+
+  // pref callback for when the "show tooltips" pref changes
+  static bool sShowTooltips;
+  static uint32_t sTooltipListenerCount;
+
+  void KillTooltipTimer();
+
+#ifdef MOZ_XUL
+  void CheckTreeBodyMove(nsIDOMMouseEvent* aMouseEvent);
+  nsresult GetSourceTreeBoxObject(nsITreeBoxObject** aBoxObject);
+#endif
+
+  nsresult ShowTooltip();
+  void LaunchTooltip();
+  nsresult HideTooltip();
+  nsresult DestroyTooltip();
+  // This method tries to find a tooltip for aTarget.
+  nsresult FindTooltip(nsIContent* aTarget, nsIContent** aTooltip);
+  // This method calls FindTooltip and checks that the tooltip
+  // can be really used (i.e. tooltip is not a menu).
+  nsresult GetTooltipFor(nsIContent* aTarget, nsIContent** aTooltip);
+
+  static nsXULTooltipListener* mInstance;
+  static void ToolbarTipsPrefChanged(const char *aPref, void *aClosure);
+
+  nsWeakPtr mSourceNode;
+  nsWeakPtr mTargetNode;
+  nsWeakPtr mCurrentTooltip;
+
+  // a timer for showing the tooltip
+  nsCOMPtr<nsITimer> mTooltipTimer;
+  static void sTooltipCallback (nsITimer* aTimer, void* aListener);
+
+  // screen coordinates of the last mousemove event, stored so that the
+  // tooltip can be opened at this location.
+  int32_t mMouseScreenX, mMouseScreenY;
+
+  // various constants for tooltips
+  enum {
+    kTooltipMouseMoveTolerance = 7     // 7 pixel tolerance for mousemove event
+  };
+
+  // flag specifying if the tooltip has already been displayed by a MouseMove
+  // event. The flag is reset on MouseOut so that the tooltip will display
+  // the next time the mouse enters the node (bug #395668).
+  bool mTooltipShownOnce;
+
+#ifdef MOZ_XUL
+  // special members for handling trees
+  bool mIsSourceTree;
+  bool mNeedTitletip;
+  int32_t mLastTreeRow;
+  nsCOMPtr<nsITreeColumn> mLastTreeCol;
+#endif
+};
+
+#endif // nsXULTooltipListener