зеркало из https://github.com/mozilla/pjs.git
145 строки
4.1 KiB
C++
145 строки
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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* a piece of state that is stored in session history when the document
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* is not
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*/
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#include "nsCOMPtr.h"
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#include "nsXPCOM.h"
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#include "nsISupportsPrimitives.h"
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#include "nsIComponentManager.h"
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#include "nsXPIDLString.h"
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#include "nsReadableUtils.h"
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#include "nsLayoutErrors.h"
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#include "nsPresState.h"
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#include "nsString.h"
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// Implementation /////////////////////////////////////////////////////////////////
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nsresult
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nsPresState::Init()
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{
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return mPropertyTable.Init(8) ? NS_OK : NS_ERROR_FAILURE;
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}
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nsresult
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nsPresState::GetStateProperty(const nsAString& aName, nsAString& aResult)
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{
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nsresult rv = NS_STATE_PROPERTY_NOT_THERE;
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aResult.Truncate();
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// Retrieve from hashtable.
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nsISupports *data = mPropertyTable.GetWeak(aName);
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// Strings are stored in the table as UTF-8, to save space.
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// XXX minimize conversions here...
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nsCOMPtr<nsISupportsCString> supportsStr = do_QueryInterface(data);
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if (supportsStr) {
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nsCAutoString data;
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supportsStr->GetData(data);
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CopyUTF8toUTF16(data, aResult);
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aResult.SetIsVoid(data.IsVoid());
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rv = NS_STATE_PROPERTY_EXISTS;
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}
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return rv;
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}
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nsresult
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nsPresState::SetStateProperty(const nsAString& aName, const nsAString& aValue)
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{
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// Add to hashtable
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nsCOMPtr<nsISupportsCString> supportsStr(do_CreateInstance(NS_SUPPORTS_CSTRING_CONTRACTID));
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NS_ENSURE_TRUE(supportsStr, NS_ERROR_OUT_OF_MEMORY);
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NS_ConvertUTF16toUTF8 data(aValue);
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data.SetIsVoid(aValue.IsVoid());
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supportsStr->SetData(data);
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mPropertyTable.Put(aName, supportsStr);
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return NS_OK;
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}
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nsresult
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nsPresState::RemoveStateProperty(const nsAString& aName)
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{
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mPropertyTable.Remove(aName);
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return NS_OK;
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}
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nsresult
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nsPresState::GetStatePropertyAsSupports(const nsAString& aName,
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nsISupports** aResult)
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{
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// Retrieve from hashtable.
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mPropertyTable.Get(aName, aResult);
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return NS_OK;
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}
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nsresult
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nsPresState::SetStatePropertyAsSupports(const nsAString& aName,
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nsISupports* aValue)
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{
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mPropertyTable.Put(aName, aValue);
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return NS_OK;
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}
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nsresult
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NS_NewPresState(nsPresState** aState)
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{
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nsPresState *state;
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*aState = nsnull;
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state = new nsPresState();
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if (!state)
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return NS_ERROR_OUT_OF_MEMORY;
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nsresult rv = state->Init();
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if (NS_SUCCEEDED(rv))
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*aState = state;
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else
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delete state;
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return rv;
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}
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