1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/editor/txmgr/src/nsTransactionList.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,214 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "mozilla/mozalloc.h"
1.10 +#include "nsCOMPtr.h"
1.11 +#include "nsDebug.h"
1.12 +#include "nsError.h"
1.13 +#include "nsID.h"
1.14 +#include "nsISupportsUtils.h"
1.15 +#include "nsITransactionManager.h"
1.16 +#include "nsTransactionItem.h"
1.17 +#include "nsTransactionList.h"
1.18 +#include "nsTransactionStack.h"
1.19 +#include "nscore.h"
1.20 +
1.21 +NS_IMPL_ISUPPORTS(nsTransactionList, nsITransactionList)
1.22 +
1.23 +nsTransactionList::nsTransactionList(nsITransactionManager *aTxnMgr, nsTransactionStack *aTxnStack)
1.24 + : mTxnStack(aTxnStack)
1.25 + , mTxnItem(0)
1.26 +{
1.27 + if (aTxnMgr)
1.28 + mTxnMgr = do_GetWeakReference(aTxnMgr);
1.29 +}
1.30 +
1.31 +nsTransactionList::nsTransactionList(nsITransactionManager *aTxnMgr, nsTransactionItem *aTxnItem)
1.32 + : mTxnStack(0)
1.33 + , mTxnItem(aTxnItem)
1.34 +{
1.35 + if (aTxnMgr)
1.36 + mTxnMgr = do_GetWeakReference(aTxnMgr);
1.37 +}
1.38 +
1.39 +nsTransactionList::~nsTransactionList()
1.40 +{
1.41 + mTxnStack = 0;
1.42 + mTxnItem = 0;
1.43 +}
1.44 +
1.45 +/* readonly attribute long numItems; */
1.46 +NS_IMETHODIMP nsTransactionList::GetNumItems(int32_t *aNumItems)
1.47 +{
1.48 + NS_ENSURE_TRUE(aNumItems, NS_ERROR_NULL_POINTER);
1.49 +
1.50 + *aNumItems = 0;
1.51 +
1.52 + nsCOMPtr<nsITransactionManager> txMgr = do_QueryReferent(mTxnMgr);
1.53 +
1.54 + NS_ENSURE_TRUE(txMgr, NS_ERROR_FAILURE);
1.55 +
1.56 + nsresult result = NS_OK;
1.57 +
1.58 + if (mTxnStack)
1.59 + *aNumItems = mTxnStack->GetSize();
1.60 + else if (mTxnItem)
1.61 + result = mTxnItem->GetNumberOfChildren(aNumItems);
1.62 +
1.63 + return result;
1.64 +}
1.65 +
1.66 +/* boolean itemIsBatch (in long aIndex); */
1.67 +NS_IMETHODIMP nsTransactionList::ItemIsBatch(int32_t aIndex, bool *aIsBatch)
1.68 +{
1.69 + NS_ENSURE_TRUE(aIsBatch, NS_ERROR_NULL_POINTER);
1.70 +
1.71 + *aIsBatch = false;
1.72 +
1.73 + nsCOMPtr<nsITransactionManager> txMgr = do_QueryReferent(mTxnMgr);
1.74 +
1.75 + NS_ENSURE_TRUE(txMgr, NS_ERROR_FAILURE);
1.76 +
1.77 + nsRefPtr<nsTransactionItem> item;
1.78 +
1.79 + nsresult result = NS_OK;
1.80 +
1.81 + if (mTxnStack)
1.82 + item = mTxnStack->GetItem(aIndex);
1.83 + else if (mTxnItem)
1.84 + result = mTxnItem->GetChild(aIndex, getter_AddRefs(item));
1.85 +
1.86 + NS_ENSURE_SUCCESS(result, result);
1.87 +
1.88 + NS_ENSURE_TRUE(item, NS_ERROR_FAILURE);
1.89 +
1.90 + return item->GetIsBatch(aIsBatch);
1.91 +}
1.92 +
1.93 +/* void getData (in long aIndex,
1.94 + [optional] out unsigned long aLength,
1.95 + [array, size_is (aLength), retval]
1.96 + out nsISupports aData); */
1.97 +NS_IMETHODIMP nsTransactionList::GetData(int32_t aIndex,
1.98 + uint32_t *aLength,
1.99 + nsISupports ***aData)
1.100 +{
1.101 + nsCOMPtr<nsITransactionManager> txMgr = do_QueryReferent(mTxnMgr);
1.102 +
1.103 + NS_ENSURE_TRUE(txMgr, NS_ERROR_FAILURE);
1.104 +
1.105 + nsRefPtr<nsTransactionItem> item;
1.106 +
1.107 + if (mTxnStack) {
1.108 + item = mTxnStack->GetItem(aIndex);
1.109 + } else if (mTxnItem) {
1.110 + nsresult result = mTxnItem->GetChild(aIndex, getter_AddRefs(item));
1.111 + NS_ENSURE_SUCCESS(result, result);
1.112 + }
1.113 +
1.114 + nsCOMArray<nsISupports>& data = item->GetData();
1.115 +
1.116 + nsISupports** ret = static_cast<nsISupports**>(NS_Alloc(data.Count() *
1.117 + sizeof(nsISupports*)));
1.118 +
1.119 + for (int32_t i = 0; i < data.Count(); i++) {
1.120 + NS_ADDREF(ret[i] = data[i]);
1.121 + }
1.122 +
1.123 + *aLength = data.Count();
1.124 + *aData = ret;
1.125 +
1.126 + return NS_OK;
1.127 +}
1.128 +
1.129 +/* nsITransaction getItem (in long aIndex); */
1.130 +NS_IMETHODIMP nsTransactionList::GetItem(int32_t aIndex, nsITransaction **aItem)
1.131 +{
1.132 + NS_ENSURE_TRUE(aItem, NS_ERROR_NULL_POINTER);
1.133 +
1.134 + *aItem = 0;
1.135 +
1.136 + nsCOMPtr<nsITransactionManager> txMgr = do_QueryReferent(mTxnMgr);
1.137 +
1.138 + NS_ENSURE_TRUE(txMgr, NS_ERROR_FAILURE);
1.139 +
1.140 + nsRefPtr<nsTransactionItem> item;
1.141 +
1.142 + nsresult result = NS_OK;
1.143 +
1.144 + if (mTxnStack)
1.145 + item = mTxnStack->GetItem(aIndex);
1.146 + else if (mTxnItem)
1.147 + result = mTxnItem->GetChild(aIndex, getter_AddRefs(item));
1.148 +
1.149 + NS_ENSURE_SUCCESS(result, result);
1.150 +
1.151 + NS_ENSURE_TRUE(item, NS_ERROR_FAILURE);
1.152 +
1.153 + *aItem = item->GetTransaction().take();
1.154 +
1.155 + return NS_OK;
1.156 +}
1.157 +
1.158 +/* long getNumChildrenForItem (in long aIndex); */
1.159 +NS_IMETHODIMP nsTransactionList::GetNumChildrenForItem(int32_t aIndex, int32_t *aNumChildren)
1.160 +{
1.161 + NS_ENSURE_TRUE(aNumChildren, NS_ERROR_NULL_POINTER);
1.162 +
1.163 + *aNumChildren = 0;
1.164 +
1.165 + nsCOMPtr<nsITransactionManager> txMgr = do_QueryReferent(mTxnMgr);
1.166 +
1.167 + NS_ENSURE_TRUE(txMgr, NS_ERROR_FAILURE);
1.168 +
1.169 + nsRefPtr<nsTransactionItem> item;
1.170 +
1.171 + nsresult result = NS_OK;
1.172 +
1.173 + if (mTxnStack)
1.174 + item = mTxnStack->GetItem(aIndex);
1.175 + else if (mTxnItem)
1.176 + result = mTxnItem->GetChild(aIndex, getter_AddRefs(item));
1.177 +
1.178 + NS_ENSURE_SUCCESS(result, result);
1.179 +
1.180 + NS_ENSURE_TRUE(item, NS_ERROR_FAILURE);
1.181 +
1.182 + return item->GetNumberOfChildren(aNumChildren);
1.183 +}
1.184 +
1.185 +/* nsITransactionList getChildListForItem (in long aIndex); */
1.186 +NS_IMETHODIMP nsTransactionList::GetChildListForItem(int32_t aIndex, nsITransactionList **aTxnList)
1.187 +{
1.188 + NS_ENSURE_TRUE(aTxnList, NS_ERROR_NULL_POINTER);
1.189 +
1.190 + *aTxnList = 0;
1.191 +
1.192 + nsCOMPtr<nsITransactionManager> txMgr = do_QueryReferent(mTxnMgr);
1.193 +
1.194 + NS_ENSURE_TRUE(txMgr, NS_ERROR_FAILURE);
1.195 +
1.196 + nsRefPtr<nsTransactionItem> item;
1.197 +
1.198 + nsresult result = NS_OK;
1.199 +
1.200 + if (mTxnStack)
1.201 + item = mTxnStack->GetItem(aIndex);
1.202 + else if (mTxnItem)
1.203 + result = mTxnItem->GetChild(aIndex, getter_AddRefs(item));
1.204 +
1.205 + NS_ENSURE_SUCCESS(result, result);
1.206 +
1.207 + NS_ENSURE_TRUE(item, NS_ERROR_FAILURE);
1.208 +
1.209 + *aTxnList = (nsITransactionList *)new nsTransactionList(txMgr, item);
1.210 +
1.211 + NS_ENSURE_TRUE(*aTxnList, NS_ERROR_OUT_OF_MEMORY);
1.212 +
1.213 + NS_ADDREF(*aTxnList);
1.214 +
1.215 + return NS_OK;
1.216 +}
1.217 +
