LCOV - code coverage report
Current view: top level - editor/libeditor - InsertTextTransaction.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 0 48 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 14 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : #include "InsertTextTransaction.h"
       7             : 
       8             : #include "mozilla/EditorBase.h"         // mEditorBase
       9             : #include "mozilla/SelectionState.h"     // RangeUpdater
      10             : #include "mozilla/dom/Selection.h"      // Selection local var
      11             : #include "mozilla/dom/Text.h"           // mTextNode
      12             : #include "nsAString.h"                  // nsAString parameter
      13             : #include "nsDebug.h"                    // for NS_ASSERTION, etc.
      14             : #include "nsError.h"                    // for NS_OK, etc.
      15             : #include "nsQueryObject.h"              // for do_QueryObject
      16             : 
      17             : namespace mozilla {
      18             : 
      19             : using namespace dom;
      20             : 
      21           0 : InsertTextTransaction::InsertTextTransaction(Text& aTextNode,
      22             :                                              uint32_t aOffset,
      23             :                                              const nsAString& aStringToInsert,
      24             :                                              EditorBase& aEditorBase,
      25           0 :                                              RangeUpdater* aRangeUpdater)
      26             :   : mTextNode(&aTextNode)
      27             :   , mOffset(aOffset)
      28             :   , mStringToInsert(aStringToInsert)
      29             :   , mEditorBase(&aEditorBase)
      30           0 :   , mRangeUpdater(aRangeUpdater)
      31             : {
      32           0 : }
      33             : 
      34           0 : InsertTextTransaction::~InsertTextTransaction()
      35             : {
      36           0 : }
      37             : 
      38           0 : NS_IMPL_CYCLE_COLLECTION_INHERITED(InsertTextTransaction, EditTransactionBase,
      39             :                                    mEditorBase,
      40             :                                    mTextNode)
      41             : 
      42           0 : NS_IMPL_ADDREF_INHERITED(InsertTextTransaction, EditTransactionBase)
      43           0 : NS_IMPL_RELEASE_INHERITED(InsertTextTransaction, EditTransactionBase)
      44           0 : NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(InsertTextTransaction)
      45           0 :   if (aIID.Equals(NS_GET_IID(InsertTextTransaction))) {
      46           0 :     foundInterface = static_cast<nsITransaction*>(this);
      47             :   } else
      48           0 : NS_INTERFACE_MAP_END_INHERITING(EditTransactionBase)
      49             : 
      50             : 
      51             : NS_IMETHODIMP
      52           0 : InsertTextTransaction::DoTransaction()
      53             : {
      54           0 :   if (NS_WARN_IF(!mEditorBase) || NS_WARN_IF(!mTextNode)) {
      55           0 :     return NS_ERROR_NOT_AVAILABLE;
      56             :   }
      57             : 
      58           0 :   nsresult rv = mTextNode->InsertData(mOffset, mStringToInsert);
      59           0 :   NS_ENSURE_SUCCESS(rv, rv);
      60             : 
      61             :   // Only set selection to insertion point if editor gives permission
      62           0 :   if (mEditorBase->GetShouldTxnSetSelection()) {
      63           0 :     RefPtr<Selection> selection = mEditorBase->GetSelection();
      64           0 :     NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
      65             :     DebugOnly<nsresult> rv =
      66           0 :       selection->Collapse(mTextNode, mOffset + mStringToInsert.Length());
      67           0 :     NS_ASSERTION(NS_SUCCEEDED(rv),
      68             :                  "Selection could not be collapsed after insert");
      69             :   } else {
      70             :     // Do nothing - DOM Range gravity will adjust selection
      71             :   }
      72           0 :   mRangeUpdater->SelAdjInsertText(*mTextNode, mOffset, mStringToInsert);
      73             : 
      74           0 :   return NS_OK;
      75             : }
      76             : 
      77             : NS_IMETHODIMP
      78           0 : InsertTextTransaction::UndoTransaction()
      79             : {
      80           0 :   return mTextNode->DeleteData(mOffset, mStringToInsert.Length());
      81             : }
      82             : 
      83             : NS_IMETHODIMP
      84           0 : InsertTextTransaction::Merge(nsITransaction* aTransaction,
      85             :                              bool* aDidMerge)
      86             : {
      87           0 :   if (!aTransaction || !aDidMerge) {
      88           0 :     return NS_OK;
      89             :   }
      90             :   // Set out param default value
      91           0 :   *aDidMerge = false;
      92             : 
      93             :   // If aTransaction is a InsertTextTransaction, and if the selection hasn't
      94             :   // changed, then absorb it.
      95           0 :   RefPtr<InsertTextTransaction> otherTransaction = do_QueryObject(aTransaction);
      96           0 :   if (otherTransaction && IsSequentialInsert(*otherTransaction)) {
      97           0 :     nsAutoString otherData;
      98           0 :     otherTransaction->GetData(otherData);
      99           0 :     mStringToInsert += otherData;
     100           0 :     *aDidMerge = true;
     101             :   }
     102             : 
     103           0 :   return NS_OK;
     104             : }
     105             : 
     106             : NS_IMETHODIMP
     107           0 : InsertTextTransaction::GetTxnDescription(nsAString& aString)
     108             : {
     109           0 :   aString.AssignLiteral("InsertTextTransaction: ");
     110           0 :   aString += mStringToInsert;
     111           0 :   return NS_OK;
     112             : }
     113             : 
     114             : /* ============ private methods ================== */
     115             : 
     116             : void
     117           0 : InsertTextTransaction::GetData(nsString& aResult)
     118             : {
     119           0 :   aResult = mStringToInsert;
     120           0 : }
     121             : 
     122             : bool
     123           0 : InsertTextTransaction::IsSequentialInsert(
     124             :                          InsertTextTransaction& aOtherTransaction)
     125             : {
     126           0 :   return aOtherTransaction.mTextNode == mTextNode &&
     127           0 :          aOtherTransaction.mOffset == mOffset + mStringToInsert.Length();
     128             : }
     129             : 
     130             : } // namespace mozilla

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