зеркало из https://github.com/mozilla/gecko-dev.git
666 строки
11 KiB
C++
666 строки
11 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#if defined(ENDER) && defined(MOZ_ENDER_MIME)
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#ifdef DEBUG_kin
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#define DEBUG_SAFE_LIST 1
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#endif /* DEBUG_kin */
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#ifdef DEBUG_SAFE_LIST
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#include <stdio.h>
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#endif /* DEBUG_SAFE_LIST */
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#include "editor.h"
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class LListElement
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{
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LListElement *m_pPrev;
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LListElement *m_pNext;
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protected:
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void *m_pData;
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public:
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LListElement(void *data = 0)
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: m_pPrev(0), m_pNext(0), m_pData(data) {}
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virtual ~LListElement();
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int32 insertBefore(LListElement *ele);
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int32 insertAfter(LListElement *ele);
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int32 unlink();
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void *getData() { return m_pData; }
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LListElement *getPrev() { return m_pPrev; }
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LListElement *getNext() { return m_pNext; }
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#ifdef DEBUG_SAFE_LIST
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virtual void print();
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#endif /* DEBUG_SAFE_LIST */
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};
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class LList
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{
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LListElement *m_pHead;
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LListElement *m_pTail;
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public:
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LList() : m_pHead(0), m_pTail(0) {}
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virtual ~LList();
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LListElement *getHead() { return m_pHead; }
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LListElement *getTail() { return m_pTail; }
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int32 insertAtHead(LListElement *ele);
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int32 insertAtTail(LListElement *ele);
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int32 insertBefore(LListElement *ele1, LListElement *ele2);
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int32 insertAfter(LListElement *ele1, LListElement*ele2);
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XP_Bool isEmpty();
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XP_Bool contains(LListElement *ele);
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int32 remove(LListElement *ele);
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#ifdef DEBUG_SAFE_LIST
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virtual void print();
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#endif /* DEBUG_SAFE_LIST */
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};
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class LListIterator
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{
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LList *m_pList;
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LListElement *m_pNextElement;
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public:
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LListIterator(LList *list = 0) : m_pList(list), m_pNextElement(0) { init(); }
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virtual int32 init()
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{
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if (!m_pList)
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return 0;
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m_pNextElement = m_pList->getHead();
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return 0;
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}
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virtual LListElement *getNext()
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{
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LListElement *ele = m_pNextElement;
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if (m_pNextElement)
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m_pNextElement = m_pNextElement->getNext();
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return ele;
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}
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};
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class SortedLList : public LList
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{
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public:
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virtual int32 insert(LListElement *ele);
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virtual int32 compare(LListElement *ele1, LListElement *ele2);
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};
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LListElement::~LListElement()
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{
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// If we're destroying this element, make sure it's
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// not on any list!
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unlink();
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}
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//
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// Insert ele before this
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//
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int32
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LListElement::insertBefore(LListElement *ele)
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{
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if (!ele)
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return -1;
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ele->m_pNext = this;
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ele->m_pPrev = m_pPrev;
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m_pPrev = ele;
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if (ele->m_pPrev)
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ele->m_pPrev->m_pNext = ele;
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return 0;
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}
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//
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// Insert ele after this.
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//
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int32
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LListElement::insertAfter(LListElement *ele)
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{
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if (!ele)
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return -1;
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ele->m_pPrev = this;
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ele->m_pNext = m_pNext;
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m_pNext = ele;
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if (ele->m_pNext)
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ele->m_pNext->m_pPrev = ele;
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return 0;
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}
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//
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// unlink this from it's list.
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//
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int32
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LListElement::unlink()
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{
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if (m_pPrev)
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m_pPrev->m_pNext = m_pNext;
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if (m_pNext)
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m_pNext->m_pPrev = m_pPrev;
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m_pPrev = 0;
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m_pNext = 0;
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return 0;
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}
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#ifdef DEBUG_SAFE_LIST
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void
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LListElement::print()
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{
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fprintf(stdout, "this: 0x%.8x\n", this);
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fprintf(stdout, " m_pData: 0x%.8x\n", m_pData);
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fprintf(stdout, " m_pPrev: 0x%.8x\n", m_pPrev);
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fprintf(stdout, " m_pNext: 0x%.8x\n", m_pNext);
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}
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#endif /* DEBUG_SAFE_LIST */
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LList::~LList()
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{
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LListElement *ele;
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while((ele = m_pHead))
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{
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remove(ele);
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delete ele;
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}
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}
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//
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// Insert ele at the head of the list.
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//
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int32
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LList::insertAtHead(LListElement *ele)
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{
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if (!ele)
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return -1;
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if (!m_pHead)
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{
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m_pHead = m_pTail = ele;
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return 0;
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}
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m_pHead->insertBefore(ele);
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m_pHead = ele;
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return 0;
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}
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//
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// Insert ele at the tail of the list.
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//
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int32
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LList::insertAtTail(LListElement *ele)
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{
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if (!ele)
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return -1;
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if (!m_pHead)
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{
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m_pHead = m_pTail = ele;
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return 0;
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}
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m_pTail->insertAfter(ele);
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m_pTail = ele;
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return 0;
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}
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//
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// Insert ele2 before ele1 in the list.
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//
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int32
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LList::insertBefore(LListElement *ele1, LListElement *ele2)
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{
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if (!ele1 || !ele2 || !contains(ele1))
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return -1;
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if (m_pHead == ele1)
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{
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insertAtHead(ele2);
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return 0;
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}
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ele1->insertBefore(ele2);
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return 0;
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}
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//
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// Insert ele2 after ele1 in the list.
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//
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int32
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LList::insertAfter(LListElement *ele1, LListElement *ele2)
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{
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if (!ele1 || !ele2 || !contains(ele1))
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return -1;
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if (m_pTail == ele1)
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{
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insertAtTail(ele2);
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return 0;
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}
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ele1->insertAfter(ele2);
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return 0;
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}
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//
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// TRUE if the list contains no elements.
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//
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XP_Bool
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LList::isEmpty()
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{
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return !m_pHead;
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}
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//
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// TRUE if this contains ele.
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//
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XP_Bool
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LList::contains(LListElement *ele)
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{
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LListElement *e = m_pHead;
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if (!ele)
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return FALSE;
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while (e)
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{
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if (e == ele)
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return TRUE;
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e = e->getNext();
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}
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return FALSE;
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}
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//
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// Remove ele from the list.
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//
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int32
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LList::remove(LListElement *ele)
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{
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if (!ele || !contains(ele))
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return -1;
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if (!m_pHead)
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return 0;
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if (ele == m_pHead)
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m_pHead = ele->getNext();
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if (ele == m_pTail)
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m_pTail = ele->getPrev();
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ele->unlink();
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return 0;
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}
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#ifdef DEBUG_SAFE_LIST
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void
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LList::print()
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{
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LListIterator li(this);
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LListElement *ele;
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fprintf(stdout, "-------------------------------\n");
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fprintf(stdout, "HEAD: 0x%.8x\n", m_pHead);
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fprintf(stdout, "TAIL: 0x%.8x\n", m_pTail);
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while ((ele = li.getNext()))
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{
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ele->print();
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fflush(stdout);
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}
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}
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#endif /* DEBUG_SAFE_LIST */
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int32
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SortedLList::insert(LListElement *ele)
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{
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LListIterator li(this);
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LListElement *le;
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if (contains(ele))
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return 0;
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if (isEmpty())
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{
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LList::insertAtHead(ele);
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return 0;
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}
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while ((le = li.getNext()))
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{
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if (compare(le, ele) >= 0)
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return(LList::insertBefore(le, ele));
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}
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return(LList::insertAtTail(ele));
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}
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int32
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SortedLList::compare(LListElement *ele1, LListElement *ele2)
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{
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if (ele1->getData() < ele2->getData())
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return -1;
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else if (ele1->getData() > ele2->getData())
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return 1;
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return 0;
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}
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class SafeListElement : public LListElement
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{
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public:
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void *m_pID;
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char *m_pTmpFilePath;
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int32 m_iRefCount;
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SafeListElement(void *id, const char *url_str, const char *path=0)
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: LListElement(), m_pTmpFilePath(0)
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{
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if (url_str)
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m_pData = (void *)XP_STRDUP(url_str);
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if (path)
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m_pTmpFilePath = XP_STRDUP(path);
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m_pID = id;
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m_iRefCount = 1;
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}
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virtual ~SafeListElement()
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{
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if (m_pTmpFilePath)
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{
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XP_FileRemove(m_pTmpFilePath, xpFileToPost);
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XP_FREE(m_pTmpFilePath);
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}
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if (m_pData)
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XP_FREE(m_pData);
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m_pData = 0;
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m_pID = 0;
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m_pTmpFilePath = 0;
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}
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XP_Bool match(void *id, const char *url_str)
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{
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if (m_pID != id || (m_pData != (void *)url_str && (!url_str || !m_pData)))
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return(FALSE);
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return(!XP_STRCMP((char *)m_pData, url_str));
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}
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#ifdef DEBUG_SAFE_LIST
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void print()
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{
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fprintf(stdout, "this: 0x%.8x\n", this);
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fprintf(stdout, " id: 0x%.8x\n", m_pID);
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fprintf(stdout, " url_str: %s\n", (char *)m_pData);
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fprintf(stdout, " path: %s\n", m_pTmpFilePath ? m_pTmpFilePath : "0");
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fprintf(stdout, " count: %d\n", m_iRefCount);
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fprintf(stdout, " prev: 0x%.8x\n", getPrev());
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fprintf(stdout, " next: 0x%.8x\n", getNext());
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}
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#endif /* DEBUG_SAFE_LIST */
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};
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class SafeList : public SortedLList
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{
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public:
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virtual ~SafeList()
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{
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removeAll();
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}
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SafeListElement *find(void *id, const char *url_str)
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{
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LListIterator li(this);
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SafeListElement *ele;
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while ((ele = (SafeListElement *)li.getNext()))
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{
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if (ele->match(id, url_str))
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return ele;
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}
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return 0;
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}
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int32 insert(void *id, const char *url_str, const char *path = 0)
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{
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SafeListElement *ele = find(id, url_str);
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if (ele)
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{
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ele->m_iRefCount++;
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return 0;
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}
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ele = new SafeListElement(id, url_str, path);
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if (!ele)
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return -1;
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return SortedLList::insert((LListElement *)ele);
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}
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int32 remove(void *id, const char *url_str)
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{
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SafeListElement *ele = find(id, url_str);
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if (!ele)
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return 1;
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ele->m_iRefCount--;
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if (ele->m_iRefCount <= 0)
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{
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LList::remove((LListElement *)ele);
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delete ele;
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}
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return 0;
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}
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int32 removeID(void *id)
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{
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LListIterator li(this);
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SafeListElement *ele;
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while ((ele = (SafeListElement *)li.getNext()))
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{
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if (ele->m_pID == id)
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{
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LList::remove((LListElement *)ele);
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delete ele;
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}
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}
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return 0;
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}
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int32 removeAll()
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{
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LListIterator li(this);
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LListElement *ele;
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while ((ele = li.getNext()))
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{
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LList::remove(ele);
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delete ele;
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}
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return 0;
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}
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int32 compare(LListElement *ele1, LListElement *ele2)
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{
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SafeListElement *e1 = (SafeListElement *)ele1;
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SafeListElement *e2 = (SafeListElement *)ele2;
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char *d1 = (char *)e1->getData();
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char *d2 = (char *)e2->getData();
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if (e1->m_pID < e2->m_pID)
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return -1;
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else if (e1->m_pID > e2->m_pID)
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return 1;
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else if (!d1)
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return -1;
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else if (!d2)
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return 1;
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return XP_STRCMP(d1, d2);
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}
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};
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static SafeList *app_safe_list = 0;
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extern "C" XP_Bool
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EDT_URLOnSafeList( void *id, const char *url_str )
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{
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return(app_safe_list &&
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app_safe_list->find(id, url_str) != 0);
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}
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extern "C" int32
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EDT_AddTmpFileURLToSafeList( void *id, const char *url_str, const char *path )
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{
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int32 status = 0;
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if (!app_safe_list)
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{
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app_safe_list = new SafeList();
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if (!app_safe_list)
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return -1;
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}
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status = app_safe_list->insert(id, url_str, path);
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#ifdef DEBUG_SAFE_LIST
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app_safe_list->print();
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#endif /* DEBUG_SAFE_LIST */
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return status;
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}
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extern "C" int32
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EDT_AddURLToSafeList( void *id, const char *url_str )
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{
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return EDT_AddTmpFileURLToSafeList(id, url_str, 0);
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}
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extern "C" int32
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EDT_RemoveURLFromSafeList( void *id, const char *url_str )
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{
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int32 status = 0;
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if (!app_safe_list)
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return 0;
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status = app_safe_list->remove(id, url_str);
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#ifdef DEBUG_SAFE_LIST
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app_safe_list->print();
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#endif /* DEBUG_SAFE_LIST */
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return status;
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}
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extern "C" int32
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EDT_RemoveIDFromSafeList( void *id )
|
|
{
|
|
int32 status = 0;
|
|
|
|
if (!app_safe_list)
|
|
return 0;
|
|
|
|
status = app_safe_list->removeID(id);
|
|
|
|
#ifdef DEBUG_SAFE_LIST
|
|
app_safe_list->print();
|
|
#endif /* DEBUG_SAFE_LIST */
|
|
|
|
return status;
|
|
}
|
|
|
|
extern "C" int32
|
|
EDT_DestroySafeList()
|
|
{
|
|
if (!app_safe_list)
|
|
return 0;
|
|
|
|
delete app_safe_list;
|
|
app_safe_list = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
extern "C" void *
|
|
EDT_GetIdFromContext(MWContext *pContext)
|
|
{
|
|
GET_EDIT_BUF_OR_RETURN(pContext, pEditBuffer) 0;
|
|
return pEditBuffer->m_pEmbeddedData;
|
|
}
|
|
|
|
#endif /* ENDER && MOZ_ENDER_MIME */
|