зеркало из https://github.com/mozilla/pjs.git
575 строки
14 KiB
C++
575 строки
14 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
#define NS_IMPL_IDS
|
|
|
|
#include "nsProperties.h"
|
|
|
|
#include <iostream.h>
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
nsProperties::nsProperties(nsISupports* outer)
|
|
{
|
|
NS_INIT_AGGREGATED(outer);
|
|
}
|
|
|
|
NS_METHOD
|
|
nsProperties::Create(nsISupports *outer, REFNSIID aIID, void **aResult)
|
|
{
|
|
if (outer && !aIID.Equals(nsCOMTypeInfo<nsISupports>::GetIID()))
|
|
return NS_NOINTERFACE; // XXX right error?
|
|
nsProperties* props = new nsProperties(outer);
|
|
if (props == NULL)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(props);
|
|
nsresult rv = props->QueryInterface(aIID, aResult);
|
|
NS_RELEASE(props);
|
|
return NS_OK;
|
|
}
|
|
|
|
PRBool
|
|
nsProperties::ReleaseValues(nsHashKey* key, void* data, void* closure)
|
|
{
|
|
nsISupports* value = (nsISupports*)data;
|
|
NS_IF_RELEASE(value);
|
|
return PR_TRUE;
|
|
}
|
|
|
|
nsProperties::~nsProperties()
|
|
{
|
|
Enumerate(ReleaseValues);
|
|
}
|
|
|
|
NS_IMPL_AGGREGATED(nsProperties);
|
|
|
|
NS_METHOD
|
|
nsProperties::AggregatedQueryInterface(const nsIID& aIID, void** aInstancePtr)
|
|
{
|
|
if (NULL == aInstancePtr) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
if (aIID.Equals(nsIProperties::GetIID()) ||
|
|
aIID.Equals(nsCOMTypeInfo<nsISupports>::GetIID())) {
|
|
*aInstancePtr = (void*) this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
return NS_NOINTERFACE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsProperties::DefineProperty(const char* prop, nsISupports* initialValue)
|
|
{
|
|
nsCStringKey key(prop);
|
|
if (Exists(&key))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsISupports* prevValue = (nsISupports*)Put(&key, initialValue);
|
|
NS_ASSERTION(prevValue == NULL, "hashtable error");
|
|
NS_IF_ADDREF(initialValue);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsProperties::UndefineProperty(const char* prop)
|
|
{
|
|
nsCStringKey key(prop);
|
|
if (!Exists(&key))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsISupports* prevValue = (nsISupports*)Remove(&key);
|
|
NS_IF_RELEASE(prevValue);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsProperties::GetProperty(const char* prop, nsISupports* *result)
|
|
{
|
|
nsCStringKey key(prop);
|
|
if (!Exists(&key))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsISupports* value = (nsISupports*)Get(&key);
|
|
NS_IF_ADDREF(value);
|
|
*result = value;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsProperties::SetProperty(const char* prop, nsISupports* value)
|
|
{
|
|
nsCStringKey key(prop);
|
|
if (!Exists(&key))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsISupports* prevValue = (nsISupports*)Put(&key, value);
|
|
NS_IF_RELEASE(prevValue);
|
|
NS_IF_ADDREF(value);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsProperties::HasProperty(const char* prop, nsISupports* expectedValue)
|
|
{
|
|
nsISupports* value;
|
|
nsresult rv = GetProperty(prop, &value);
|
|
if (NS_FAILED(rv)) return NS_COMFALSE;
|
|
rv = (value == expectedValue) ? NS_OK : NS_COMFALSE;
|
|
NS_IF_RELEASE(value);
|
|
return rv;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
nsresult
|
|
NS_NewIProperties(nsIProperties* *result)
|
|
{
|
|
return nsProperties::Create(NULL, nsIProperties::GetIID(), (void**)result);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Persistent Properties (should go in a separate file)
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "nsID.h"
|
|
#include "nsCRT.h"
|
|
#include "nsIInputStream.h"
|
|
#include "nsIProperties.h"
|
|
#include "nsIUnicharInputStream.h"
|
|
#include "nsProperties.h"
|
|
#include "pratom.h"
|
|
|
|
static PLHashNumber
|
|
HashKey(const PRUnichar *aString)
|
|
{
|
|
return (PLHashNumber) nsCRT::HashValue(aString);
|
|
}
|
|
|
|
static PRIntn
|
|
CompareKeys(const PRUnichar *aStr1, const PRUnichar *aStr2)
|
|
{
|
|
return nsCRT::strcmp(aStr1, aStr2) == 0;
|
|
}
|
|
|
|
nsPersistentProperties::nsPersistentProperties()
|
|
{
|
|
NS_INIT_REFCNT();
|
|
|
|
mIn = nsnull;
|
|
mSubclass = NS_STATIC_CAST(nsIPersistentProperties*, this);
|
|
mTable = PL_NewHashTable(8, (PLHashFunction) HashKey,
|
|
(PLHashComparator) CompareKeys,
|
|
(PLHashComparator) nsnull, nsnull, nsnull);
|
|
}
|
|
|
|
PR_STATIC_CALLBACK(PRIntn)
|
|
FreeHashEntries(PLHashEntry* he, PRIntn i, void* arg)
|
|
{
|
|
delete[] (PRUnichar*)he->key;
|
|
delete[] (PRUnichar*)he->value;
|
|
return HT_ENUMERATE_REMOVE;
|
|
}
|
|
|
|
nsPersistentProperties::~nsPersistentProperties()
|
|
{
|
|
if (mTable) {
|
|
// Free the PRUnicode* pointers contained in the hash table entries
|
|
PL_HashTableEnumerateEntries(mTable, FreeHashEntries, 0);
|
|
PL_HashTableDestroy(mTable);
|
|
mTable = nsnull;
|
|
}
|
|
}
|
|
|
|
NS_METHOD
|
|
nsPersistentProperties::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
|
|
{
|
|
if (aOuter)
|
|
return NS_ERROR_NO_AGGREGATION;
|
|
nsPersistentProperties* props = new nsPersistentProperties();
|
|
if (props == nsnull)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(props);
|
|
nsresult rv = props->QueryInterface(aIID, aResult);
|
|
NS_RELEASE(props);
|
|
return rv;
|
|
}
|
|
|
|
NS_IMPL_ADDREF(nsPersistentProperties)
|
|
NS_IMPL_RELEASE(nsPersistentProperties)
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::QueryInterface(REFNSIID aIID, void** aInstancePtr)
|
|
{
|
|
NS_ASSERTION(aInstancePtr != nsnull, "null ptr");
|
|
if (aIID.Equals(nsIPersistentProperties::GetIID()) ||
|
|
aIID.Equals(nsIProperties::GetIID()) ||
|
|
aIID.Equals(nsCOMTypeInfo<nsISupports>::GetIID())) {
|
|
*aInstancePtr = NS_STATIC_CAST(nsIPersistentProperties*, this);
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
return NS_NOINTERFACE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::Load(nsIInputStream *aIn)
|
|
{
|
|
PRInt32 c;
|
|
nsresult ret;
|
|
|
|
ret = NS_NewConverterStream(&mIn, nsnull, aIn);
|
|
if (ret != NS_OK) {
|
|
#ifdef NS_DEBUG
|
|
cout << "NS_NewConverterStream failed" << endl;
|
|
#endif
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
c = Read();
|
|
while (1) {
|
|
c = SkipWhiteSpace(c);
|
|
if (c < 0) {
|
|
break;
|
|
}
|
|
else if ((c == '#') || (c == '!')) {
|
|
c = SkipLine(c);
|
|
continue;
|
|
}
|
|
else {
|
|
nsAutoString key("");
|
|
while ((c >= 0) && (c != '=') && (c != ':')) {
|
|
key.Append((PRUnichar) c);
|
|
c = Read();
|
|
}
|
|
if (c < 0) {
|
|
break;
|
|
}
|
|
char *trimThese = " \t";
|
|
key.Trim(trimThese, PR_FALSE, PR_TRUE);
|
|
c = Read();
|
|
nsAutoString value("");
|
|
while ((c >= 0) && (c != '\r') && (c != '\n')) {
|
|
if (c == '\\') {
|
|
c = Read();
|
|
if ((c == '\r') || (c == '\n')) {
|
|
c = SkipWhiteSpace(c);
|
|
}
|
|
else {
|
|
value.Append('\\');
|
|
}
|
|
}
|
|
value.Append((PRUnichar) c);
|
|
c = Read();
|
|
}
|
|
value.Trim(trimThese, PR_TRUE, PR_TRUE);
|
|
nsAutoString oldValue("");
|
|
mSubclass->SetProperty(key, value, oldValue);
|
|
}
|
|
}
|
|
mIn->Close();
|
|
NS_RELEASE(mIn);
|
|
NS_ASSERTION(!mIn, "unexpected remaining reference");
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::SetProperty(const nsString& aKey, nsString& aNewValue,
|
|
nsString& aOldValue)
|
|
{
|
|
// XXX The ToNewCString() calls allocate memory using "new" so this code
|
|
// causes a memory leak...
|
|
#if 0
|
|
cout << "will add " << aKey.ToNewCString() << "=" << aNewValue.ToNewCString() << endl;
|
|
#endif
|
|
if (!mTable) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
const PRUnichar *key = aKey.GetUnicode(); // returns internal pointer (not a copy)
|
|
PRUint32 len;
|
|
PRUint32 hashValue = nsCRT::HashValue(key, &len);
|
|
PLHashEntry **hep = PL_HashTableRawLookup(mTable, hashValue, key);
|
|
PLHashEntry *he = *hep;
|
|
if (he) {
|
|
// XXX should we copy the old value to aOldValue, and then remove it?
|
|
#ifdef NS_DEBUG
|
|
char buf[128];
|
|
aKey.ToCString(buf, sizeof(buf));
|
|
printf("warning: property %s already exists\n", buf);
|
|
#endif
|
|
return NS_OK;
|
|
}
|
|
PL_HashTableRawAdd(mTable, hep, hashValue, aKey.ToNewUnicode(),
|
|
aNewValue.ToNewUnicode());
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::Save(nsIOutputStream* aOut, const nsString& aHeader)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::Subclass(nsIPersistentProperties* aSubclass)
|
|
{
|
|
if (aSubclass) {
|
|
mSubclass = aSubclass;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::GetProperty(const nsString& aKey, nsString& aValue)
|
|
{
|
|
if (!mTable)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
const PRUnichar *key = aKey.GetUnicode();
|
|
|
|
if (!mTable) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
PRUint32 len;
|
|
PRUint32 hashValue = nsCRT::HashValue(key, &len);
|
|
PLHashEntry **hep = PL_HashTableRawLookup(mTable, hashValue, key);
|
|
PLHashEntry *he = *hep;
|
|
if (he) {
|
|
aValue = (const PRUnichar*)he->value;
|
|
return NS_OK;
|
|
}
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
PR_STATIC_CALLBACK(PRIntn)
|
|
AddElemToArray(PLHashEntry* he, PRIntn i, void* arg)
|
|
{
|
|
nsISupportsArray *propArray = (nsISupportsArray *) arg;
|
|
|
|
nsString* keyStr = new nsString((PRUnichar*) he->key);
|
|
nsString* valueStr = new nsString((PRUnichar*) he->value);
|
|
|
|
nsPropertyElement *element = new nsPropertyElement();
|
|
if (!element)
|
|
return HT_ENUMERATE_STOP;
|
|
|
|
NS_ADDREF(element);
|
|
element->SetKey(keyStr);
|
|
element->SetValue(valueStr);
|
|
propArray->InsertElementAt(element, i);
|
|
|
|
return HT_ENUMERATE_NEXT;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::EnumerateProperties(nsIBidirectionalEnumerator** aResult)
|
|
{
|
|
if (!mTable)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsISupportsArray* propArray;
|
|
nsresult rv = NS_NewISupportsArray(&propArray);
|
|
if (rv != NS_OK)
|
|
return rv;
|
|
|
|
// Step through hash entries populating a transient array
|
|
PRIntn n = PL_HashTableEnumerateEntries(mTable, AddElemToArray, (void *)propArray);
|
|
if ( n < (PRIntn) mTable->nentries )
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
// Convert array into enumerator
|
|
rv = NS_NewISupportsArrayEnumerator(propArray, aResult);
|
|
if (rv != NS_OK)
|
|
return rv;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
PRInt32
|
|
nsPersistentProperties::Read()
|
|
{
|
|
PRUnichar c;
|
|
PRUint32 nRead;
|
|
nsresult ret;
|
|
|
|
ret = mIn->Read(&c, 0, 1, &nRead);
|
|
if (ret == NS_OK) {
|
|
return c;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
#define IS_WHITE_SPACE(c) \
|
|
(((c) == ' ') || ((c) == '\t') || ((c) == '\r') || ((c) == '\n'))
|
|
|
|
PRInt32
|
|
nsPersistentProperties::SkipWhiteSpace(PRInt32 c)
|
|
{
|
|
while ((c >= 0) && IS_WHITE_SPACE(c)) {
|
|
c = Read();
|
|
}
|
|
|
|
return c;
|
|
}
|
|
|
|
PRInt32
|
|
nsPersistentProperties::SkipLine(PRInt32 c)
|
|
{
|
|
while ((c >= 0) && (c != '\r') && (c != '\n')) {
|
|
c = Read();
|
|
}
|
|
if (c == '\r') {
|
|
c = Read();
|
|
}
|
|
if (c == '\n') {
|
|
c = Read();
|
|
}
|
|
|
|
return c;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::DefineProperty(const char* prop, nsISupports* initialValue)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::UndefineProperty(const char* prop)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::GetProperty(const char* prop, nsISupports* *result)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::SetProperty(const char* prop, nsISupports* value)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPersistentProperties::HasProperty(const char* prop, nsISupports* value)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// PropertyElement
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
nsPropertyElement::nsPropertyElement()
|
|
{
|
|
NS_INIT_REFCNT();
|
|
mKey = nsnull;
|
|
mValue = nsnull;
|
|
}
|
|
|
|
nsPropertyElement::~nsPropertyElement()
|
|
{
|
|
if (mKey)
|
|
delete mKey;
|
|
if (mValue)
|
|
delete mValue;
|
|
}
|
|
NS_METHOD
|
|
nsPropertyElement::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
|
|
{
|
|
if (aOuter)
|
|
return NS_ERROR_NO_AGGREGATION;
|
|
nsPropertyElement* propElem = new nsPropertyElement();
|
|
if (propElem == nsnull)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(propElem);
|
|
nsresult rv = propElem->QueryInterface(aIID, aResult);
|
|
NS_RELEASE(propElem);
|
|
return rv;
|
|
}
|
|
|
|
NS_IMPL_ADDREF(nsPropertyElement)
|
|
NS_IMPL_RELEASE(nsPropertyElement)
|
|
|
|
NS_IMETHODIMP
|
|
nsPropertyElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
|
|
{
|
|
NS_ASSERTION(aInstancePtr != nsnull, "null ptr");
|
|
if (aIID.Equals(nsIPropertyElement::GetIID()) ||
|
|
aIID.Equals(nsCOMTypeInfo<nsISupports>::GetIID())) {
|
|
*aInstancePtr = NS_STATIC_CAST(nsIPropertyElement*, this);
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
return NS_NOINTERFACE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPropertyElement::GetKey(nsString** aReturnKey)
|
|
{
|
|
if (aReturnKey)
|
|
{
|
|
*aReturnKey = mKey;
|
|
return NS_OK;
|
|
}
|
|
|
|
return NS_ERROR_INVALID_POINTER;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPropertyElement::GetValue(nsString** aReturnValue)
|
|
{
|
|
if (aReturnValue)
|
|
{
|
|
*aReturnValue = mValue;
|
|
return NS_OK;
|
|
}
|
|
|
|
return NS_ERROR_INVALID_POINTER;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPropertyElement::SetKey(nsString* aKey)
|
|
{
|
|
mKey = aKey;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsPropertyElement::SetValue(nsString* aValue)
|
|
{
|
|
mValue = aValue;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|