From 5a379a4b15b4da55f5fda0be56c43a85e0162f05 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <email@mattatobin.com>
Date: Fri, 17 Apr 2020 05:43:47 -0400
Subject: Bug 1371170 - Add non-virtual EditorBase::GetSelectionController

Tag #1375
---
 editor/libeditor/EditorBase.cpp | 20 +++++++++++++-------
 editor/libeditor/EditorBase.h   |  1 +
 2 files changed, 14 insertions(+), 7 deletions(-)

(limited to 'editor')

diff --git a/editor/libeditor/EditorBase.cpp b/editor/libeditor/EditorBase.cpp
index 9bae5dfa0..d37070849 100644
--- a/editor/libeditor/EditorBase.cpp
+++ b/editor/libeditor/EditorBase.cpp
@@ -629,6 +629,17 @@ EditorBase::GetSelectionController(nsISelectionController** aSel)
 {
   NS_ENSURE_TRUE(aSel, NS_ERROR_NULL_POINTER);
   *aSel = nullptr; // init out param
+  nsCOMPtr<nsISelectionController> selCon = GetSelectionController();
+  if (NS_WARN_IF(!selCon)) {
+    return NS_ERROR_NOT_INITIALIZED;
+  }
+  selCon.forget(aSel);
+  return NS_OK;
+}
+
+already_AddRefed<nsISelectionController>
+EditorBase::GetSelectionController()
+{
   nsCOMPtr<nsISelectionController> selCon;
   if (mSelConWeak) {
     selCon = do_QueryReferent(mSelConWeak);
@@ -636,11 +647,7 @@ EditorBase::GetSelectionController(nsISelectionController** aSel)
     nsCOMPtr<nsIPresShell> presShell = GetPresShell();
     selCon = do_QueryInterface(presShell);
   }
-  if (!selCon) {
-    return NS_ERROR_NOT_INITIALIZED;
-  }
-  NS_ADDREF(*aSel = selCon);
-  return NS_OK;
+  return selCon.forget();
 }
 
 NS_IMETHODIMP
@@ -663,8 +670,7 @@ EditorBase::GetSelection(SelectionType aSelectionType,
 {
   NS_ENSURE_TRUE(aSelection, NS_ERROR_NULL_POINTER);
   *aSelection = nullptr;
-  nsCOMPtr<nsISelectionController> selcon;
-  GetSelectionController(getter_AddRefs(selcon));
+  nsCOMPtr<nsISelectionController> selcon = GetSelectionController();
   if (!selcon) {
     return NS_ERROR_NOT_INITIALIZED;
   }
diff --git a/editor/libeditor/EditorBase.h b/editor/libeditor/EditorBase.h
index 157623287..83917c150 100644
--- a/editor/libeditor/EditorBase.h
+++ b/editor/libeditor/EditorBase.h
@@ -453,6 +453,7 @@ protected:
    */
   bool EnsureComposition(WidgetCompositionEvent* aCompositionEvent);
 
+  already_AddRefed<nsISelectionController> GetSelectionController();
   nsresult GetSelection(SelectionType aSelectionType,
                         nsISelection** aSelection);
 
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