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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /editor/libeditor/CreateElementTransaction.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'editor/libeditor/CreateElementTransaction.cpp')
-rw-r--r--editor/libeditor/CreateElementTransaction.cpp147
1 files changed, 147 insertions, 0 deletions
diff --git a/editor/libeditor/CreateElementTransaction.cpp b/editor/libeditor/CreateElementTransaction.cpp
new file mode 100644
index 000000000..5e4bd961c
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+++ b/editor/libeditor/CreateElementTransaction.cpp
@@ -0,0 +1,147 @@
+/* -*- 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/. */
+
+#include "CreateElementTransaction.h"
+
+#include <algorithm>
+#include <stdio.h>
+
+#include "mozilla/dom/Element.h"
+#include "mozilla/dom/Selection.h"
+
+#include "mozilla/Casting.h"
+#include "mozilla/EditorBase.h"
+
+#include "nsAlgorithm.h"
+#include "nsAString.h"
+#include "nsDebug.h"
+#include "nsError.h"
+#include "nsIContent.h"
+#include "nsIDOMCharacterData.h"
+#include "nsIEditor.h"
+#include "nsINode.h"
+#include "nsISupportsUtils.h"
+#include "nsMemory.h"
+#include "nsReadableUtils.h"
+#include "nsStringFwd.h"
+#include "nsString.h"
+
+namespace mozilla {
+
+using namespace dom;
+
+CreateElementTransaction::CreateElementTransaction(EditorBase& aEditorBase,
+ nsIAtom& aTag,
+ nsINode& aParent,
+ int32_t aOffsetInParent)
+ : EditTransactionBase()
+ , mEditorBase(&aEditorBase)
+ , mTag(&aTag)
+ , mParent(&aParent)
+ , mOffsetInParent(aOffsetInParent)
+{
+}
+
+CreateElementTransaction::~CreateElementTransaction()
+{
+}
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(CreateElementTransaction,
+ EditTransactionBase,
+ mParent,
+ mNewNode,
+ mRefNode)
+
+NS_IMPL_ADDREF_INHERITED(CreateElementTransaction, EditTransactionBase)
+NS_IMPL_RELEASE_INHERITED(CreateElementTransaction, EditTransactionBase)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(CreateElementTransaction)
+NS_INTERFACE_MAP_END_INHERITING(EditTransactionBase)
+
+
+NS_IMETHODIMP
+CreateElementTransaction::DoTransaction()
+{
+ MOZ_ASSERT(mEditorBase && mTag && mParent);
+
+ mNewNode = mEditorBase->CreateHTMLContent(mTag);
+ NS_ENSURE_STATE(mNewNode);
+
+ // Try to insert formatting whitespace for the new node:
+ mEditorBase->MarkNodeDirty(GetAsDOMNode(mNewNode));
+
+ // Insert the new node
+ ErrorResult rv;
+ if (mOffsetInParent == -1) {
+ mParent->AppendChild(*mNewNode, rv);
+ return rv.StealNSResult();
+ }
+
+ mOffsetInParent = std::min(mOffsetInParent,
+ static_cast<int32_t>(mParent->GetChildCount()));
+
+ // Note, it's ok for mRefNode to be null. That means append
+ mRefNode = mParent->GetChildAt(mOffsetInParent);
+
+ nsCOMPtr<nsIContent> refNode = mRefNode;
+ mParent->InsertBefore(*mNewNode, refNode, rv);
+ NS_ENSURE_TRUE(!rv.Failed(), rv.StealNSResult());
+
+ // Only set selection to insertion point if editor gives permission
+ if (!mEditorBase->GetShouldTxnSetSelection()) {
+ // Do nothing - DOM range gravity will adjust selection
+ return NS_OK;
+ }
+
+ RefPtr<Selection> selection = mEditorBase->GetSelection();
+ NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
+
+ rv = selection->CollapseNative(mParent, mParent->IndexOf(mNewNode) + 1);
+ NS_ASSERTION(!rv.Failed(),
+ "selection could not be collapsed after insert");
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+CreateElementTransaction::UndoTransaction()
+{
+ MOZ_ASSERT(mEditorBase && mParent);
+
+ ErrorResult rv;
+ mParent->RemoveChild(*mNewNode, rv);
+
+ return rv.StealNSResult();
+}
+
+NS_IMETHODIMP
+CreateElementTransaction::RedoTransaction()
+{
+ MOZ_ASSERT(mEditorBase && mParent);
+
+ // First, reset mNewNode so it has no attributes or content
+ // XXX We never actually did this, we only cleared mNewNode's contents if it
+ // was a CharacterData node (which it's not, it's an Element)
+
+ // Now, reinsert mNewNode
+ ErrorResult rv;
+ nsCOMPtr<nsIContent> refNode = mRefNode;
+ mParent->InsertBefore(*mNewNode, refNode, rv);
+ return rv.StealNSResult();
+}
+
+NS_IMETHODIMP
+CreateElementTransaction::GetTxnDescription(nsAString& aString)
+{
+ aString.AssignLiteral("CreateElementTransaction: ");
+ aString += nsDependentAtomString(mTag);
+ return NS_OK;
+}
+
+already_AddRefed<Element>
+CreateElementTransaction::GetNewNode()
+{
+ return nsCOMPtr<Element>(mNewNode).forget();
+}
+
+} // namespace mozilla