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d00a452f0da4e65c0018a65ec817bde397828e2d
Mozilla/mozilla/java/webclient/src_moz/RDFActionEvents.cpp
edburns%acm.org 232b27e5c3 Files in this fix: 
M BookmarksImpl.cpp
A CurrentPageActionEvents.cpp
A CurrentPageActionEvents.h
M CurrentPageImpl.cpp
A HistoryActionEvents.cpp
A HistoryActionEvents.h
M HistoryImpl.cpp
M Makefile.in
M Makefile.win
A NavigationActionEvents.cpp
A NavigationActionEvents.h
M NavigationImpl.cpp
A RDFActionEvents.cpp
A RDFActionEvents.h
M RDFEnumeration.cpp
M RDFTreeNode.cpp
A WindowControlActionEvents.cpp
A WindowControlActionEvents.h
M WindowControlImpl.cpp
M nsActions.cpp
M nsActions.h

This fix breaks nsActions into separate files per usage.

The criterion I use is: if the event class gets instantiated in file
Blah.cpp, then the implementation should be in BlahActionEvents.{h,cpp}.
The only exception so far is Bookmarks, which uses RDFActionEvents since
all the bookmarks stuff is really RDF.


git-svn-id: svn://10.0.0.236/branches/JAVADEV_RTM_20001102@82429 18797224-902f-48f8-a5cc-f745e15eee43
2000-11-08 19:38:14 +00:00

667 lines
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is RaptorCanvas.
*
* The Initial Developer of the Original Code is Kirk Baker and
* Ian Wilkinson. Portions created by Kirk Baker and Ian Wilkinson are
* Copyright (C) 1999 Kirk Baker and Ian Wilkinson. All
* Rights Reserved.
*
* Contributor(s): Kirk Baker <kbaker@eb.com>
* Ian Wilkinson <iw@ennoble.com>
* Ashutosh Kulkarni <ashuk@eng.sun.com>
* Mark Lin <mark.lin@eng.sun.com>
* Mark Goddard
* Ed Burns <edburns@acm.org>
* Jason Mawdsley <jason@macadamian.com>
* Louis-Philippe Gagnon <louisphilippe@macadamian.com>
*/
/*
* RDFActionEvents.cpp
*/
#include "RDFActionEvents.h"
#include "rdf_util.h"
#include "jni_util.h"
#include "ns_globals.h"
#include "prlog.h"
#include "nsIComponentManager.h"
#include "nsRDFCID.h" // for NS_RDFCONTAINER_CID
static NS_DEFINE_CID(kRDFContainerCID, NS_RDFCONTAINER_CID);
//
// Local function prototypes
//
/**
* pull the int for the field nativeEnum from the java object obj.
*/
jint getNativeEnumFromJava(JNIEnv *env, jobject obj, jint nativeRDFNode);
wsInitBookmarksEvent::wsInitBookmarksEvent(WebShellInitContext* yourInitContext) :
nsActionEvent(),
mInitContext(yourInitContext)
{
}
void *
wsInitBookmarksEvent::handleEvent ()
{
void *result = nsnull;
if (!mInitContext) {
return (void *) NS_ERROR_UNEXPECTED;
}
nsresult rv;
rv = rdf_InitRDFUtils();
JNIEnv *env = (JNIEnv *) JNU_GetEnv(gVm, JNI_VERSION);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Exception: can't initialize RDF Utils");
return (void *) result;
}
result = (void *) kNC_BookmarksRoot.get();
return result;
} // handleEvent()
wsNewRDFNodeEvent::wsNewRDFNodeEvent(WebShellInitContext* yourInitContext,
const char * yourUrlString,
PRBool yourIsFolder) :
nsActionEvent(),
mInitContext(yourInitContext), mUrlString(yourUrlString),
mIsFolder(yourIsFolder)
{
}
void *
wsNewRDFNodeEvent::handleEvent ()
{
void *result = nsnull;
if (!mInitContext) {
return (void *) NS_ERROR_UNEXPECTED;
}
nsresult rv;
nsCOMPtr<nsIRDFResource> newNode;
nsCAutoString uri("NC:BookmarksRoot");
JNIEnv *env = (JNIEnv*) JNU_GetEnv(gVm, JNI_VERSION);
const char *url = mUrlString;
uri.Append("#$");
uri.Append(url);
PRUnichar *uriUni = uri.ToNewUnicode();
rv = gRDF->GetUnicodeResource(uriUni, getter_AddRefs(newNode));
nsCRT::free(uriUni);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Exception: nativeNewRDFNode: can't create new nsIRDFResource.");
return result;
}
if (mIsFolder) {
rv = gRDFCU->MakeSeq(gBookmarksDataSource, newNode, nsnull);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Exception: unable to make new folder as a sequence.");
return result;
}
rv = gBookmarksDataSource->Assert(newNode, kRDF_type,
kNC_Folder, PR_TRUE);
if (rv != NS_OK) {
::util_ThrowExceptionToJava(env, "Exception: unable to mark new folder as folder.");
return result;
}
}
/*
* Do the AddRef here.
*/
result = (void *)newNode.get();
((nsISupports *)result)->AddRef();
return result;
} // handleEvent()
wsRDFIsContainerEvent::wsRDFIsContainerEvent(WebShellInitContext* yourInitContext,
PRUint32 yourNativeRDFNode) :
nsActionEvent(),
mInitContext(yourInitContext), mNativeRDFNode(yourNativeRDFNode)
{
}
void *
wsRDFIsContainerEvent::handleEvent ()
{
if (!mInitContext) {
return (void *) NS_ERROR_UNEXPECTED;
}
JNIEnv *env = (JNIEnv *) JNU_GetEnv(gVm, JNI_VERSION);
nsCOMPtr<nsIRDFNode> node = (nsIRDFNode *) mNativeRDFNode;
nsCOMPtr<nsIRDFResource> nodeResource;
nsresult rv;
jboolean result = JNI_FALSE;
PRBool prBool;
rv = node->QueryInterface(NS_GET_IID(nsIRDFResource),
getter_AddRefs(nodeResource));
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Exception: nativeIsContainer: nativeRDFNode is not an RDFResource.");
return nsnull;
}
rv = gRDFCU->IsContainer(gBookmarksDataSource, nodeResource,
&prBool);
result = (prBool == PR_FALSE) ? JNI_FALSE : JNI_TRUE;
return (void *) result;
} // handleEvent()
wsRDFGetChildAtEvent::wsRDFGetChildAtEvent(WebShellInitContext* yourInitContext,
PRUint32 yourNativeRDFNode,
PRUint32 yourChildIndex) :
nsActionEvent(),
mInitContext(yourInitContext), mNativeRDFNode(yourNativeRDFNode),
mChildIndex(yourChildIndex)
{
}
void *
wsRDFGetChildAtEvent::handleEvent ()
{
if (!mInitContext) {
return (void *) NS_ERROR_UNEXPECTED;
}
jint result = -1;
nsresult rv;
JNIEnv *env = (JNIEnv *) JNU_GetEnv(gVm, JNI_VERSION);
// PENDING(edburns): assert rdf_InitRDFUtils()
nsCOMPtr<nsIRDFResource> parent = (nsIRDFResource *) mNativeRDFNode;
nsCOMPtr<nsIRDFResource> child;
rv = rdf_getChildAt(mChildIndex, parent, getter_AddRefs(child));
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Exception: nativeGetChildAt: Can't get child.");
return nsnull;
}
result = (jint)child.get();
((nsISupports *)result)->AddRef();
return (void *) result;
} // handleEvent()
wsRDFGetChildCountEvent::wsRDFGetChildCountEvent(WebShellInitContext* yourInitContext,
PRUint32 yourNativeRDFNode) :
nsActionEvent(),
mInitContext(yourInitContext), mNativeRDFNode(yourNativeRDFNode)
{
}
void *
wsRDFGetChildCountEvent::handleEvent ()
{
if (!mInitContext) {
return (void *) NS_ERROR_UNEXPECTED;
}
JNIEnv *env = (JNIEnv *) JNU_GetEnv(gVm, JNI_VERSION);
jint result = -1;
PRInt32 count;
nsresult rv;
// PENDING(edburns): assert rdf_InitRDFUtils()
nsCOMPtr<nsIRDFResource> parent = (nsIRDFResource *) mNativeRDFNode;
rv = rdf_getChildCount(parent, &count);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Exception: nativeGetChildCount: Can't get child count.");
return nsnull;
}
result = (jint)count;
return (void *) result;
} // handleEvent()
wsRDFGetChildIndexEvent::wsRDFGetChildIndexEvent(WebShellInitContext* yourInitContext,
PRUint32 yourNativeRDFNode,
PRUint32 yourChildRDFNode) :
nsActionEvent(),
mInitContext(yourInitContext), mNativeRDFNode(yourNativeRDFNode),
mChildRDFNode(yourChildRDFNode)
{
}
void *
wsRDFGetChildIndexEvent::handleEvent ()
{
if (!mInitContext) {
return (void *) NS_ERROR_UNEXPECTED;
}
jint result = -1;
PRInt32 index;
nsresult rv;
// PENDING(edburns): assert rdf_InitRDFUtils()
nsCOMPtr<nsIRDFResource> parent = (nsIRDFResource *) mNativeRDFNode;
nsCOMPtr<nsIRDFResource> child = (nsIRDFResource *) mChildRDFNode;
rv = rdf_getIndexOfChild(parent, child, &index);
result = (jint) index;
return (void *) result;
} // handleEvent()
wsRDFToStringEvent::wsRDFToStringEvent(WebShellInitContext* yourInitContext,
PRUint32 yourNativeRDFNode) :
nsActionEvent(),
mInitContext(yourInitContext), mNativeRDFNode(yourNativeRDFNode)
{
}
void *
wsRDFToStringEvent::handleEvent ()
{
if (!mInitContext) {
return (void *) NS_ERROR_UNEXPECTED;
}
nsCOMPtr<nsIRDFResource> currentResource =
(nsIRDFResource *) mNativeRDFNode;
nsCOMPtr<nsIRDFNode> node;
nsCOMPtr<nsIRDFLiteral> literal;
jstring result = nsnull;
PRBool isContainer = PR_FALSE;
nsresult rv;
const PRUnichar *textForNode = nsnull;
JNIEnv *env = (JNIEnv *) JNU_GetEnv(gVm, JNI_VERSION);
rv = gRDFCU->IsContainer(gBookmarksDataSource, currentResource,
&isContainer);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Exception: nativeToString: Can't tell if RDFResource is container.");
return nsnull;
}
if (isContainer) {
// It's a bookmarks folder
rv = gBookmarksDataSource->GetTarget(currentResource,
kNC_Name, PR_TRUE,
getter_AddRefs(node));
// get the name of the folder
if (rv == 0) {
// if so, make sure it's an nsIRDFLiteral
rv = node->QueryInterface(NS_GET_IID(nsIRDFLiteral),
getter_AddRefs(literal));
if (NS_SUCCEEDED(rv)) {
rv = literal->GetValueConst(&textForNode);
}
else {
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("nativeToString: node is not an nsIRDFLiteral.\n"));
}
}
}
}
else {
// It's a bookmark or a Separator
rv = gBookmarksDataSource->GetTarget(currentResource,
kNC_URL, PR_TRUE,
getter_AddRefs(node));
// See if it has a Name
if (0 != rv) {
rv = gBookmarksDataSource->GetTarget(currentResource,
kNC_Name, PR_TRUE,
getter_AddRefs(node));
}
if (0 == rv) {
rv = node->QueryInterface(NS_GET_IID(nsIRDFLiteral),
getter_AddRefs(literal));
if (NS_SUCCEEDED(rv)) {
// get the value of the literal
rv = literal->GetValueConst(&textForNode);
if (NS_FAILED(rv)) {
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("nativeToString: node doesn't have a value.\n"));
}
}
}
else {
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("nativeToString: node is not an nsIRDFLiteral.\n"));
}
}
}
else {
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("nativeToString: node doesn't have a URL.\n"));
}
}
}
if (nsnull != textForNode) {
nsString * string = new nsString(textForNode);
int length = 0;
if (nsnull != string) {
length = string->Length();
}
result = ::util_NewString(env, (const jchar *) textForNode, length);
}
else {
result = ::util_NewStringUTF(env, "");
}
return (void *) result;
} // handleEvent()
wsRDFInsertElementAtEvent::wsRDFInsertElementAtEvent(WebShellInitContext* yourInitContext,
PRUint32 yourParentRDFNode,
PRUint32 yourChildRDFNode,
PRUint32 yourChildIndex) :
nsActionEvent(),
mInitContext(yourInitContext), mParentRDFNode(yourParentRDFNode),
mChildRDFNode(yourChildRDFNode), mChildIndex(yourChildIndex)
{
}
void *
wsRDFInsertElementAtEvent::handleEvent ()
{
if (!mInitContext) {
return (void *) NS_ERROR_UNEXPECTED;
}
JNIEnv *env = (JNIEnv *) JNU_GetEnv(gVm, JNI_VERSION);
nsCOMPtr<nsIRDFResource> parent = (nsIRDFResource *) mParentRDFNode;
nsCOMPtr<nsIRDFResource> newChild = (nsIRDFResource *) mChildRDFNode;
nsCOMPtr<nsIRDFContainer> container;
nsresult rv;
PRBool isContainer;
rv = gRDFCU->IsContainer(gBookmarksDataSource, parent,
&isContainer);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Exception: nativeNewRDFNode: RDFResource is not a container.");
return (void *) NS_ERROR_UNEXPECTED;
}
PR_ASSERT(gComponentManager);
// get a container in order to create a child
rv = gComponentManager->CreateInstance(kRDFContainerCID,
nsnull,
NS_GET_IID(nsIRDFContainer),
getter_AddRefs(container));
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Exception: nativeNewRDFNode: can't create container.");
return (void *) NS_ERROR_UNEXPECTED;
}
rv = container->Init(gBookmarksDataSource, parent);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Exception: nativeNewRDFNode: can't create container.");
return (void *) NS_ERROR_UNEXPECTED;
}
rv = container->InsertElementAt(newChild, mChildIndex, PR_TRUE);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Exception: nativeNewRDFNode: can't insert element into parent container.");
return (void *) NS_ERROR_UNEXPECTED;
}
return (void *) NS_OK;
} // handleEvent()
wsRDFHasMoreElementsEvent::wsRDFHasMoreElementsEvent(WebShellInitContext* yourInitContext,
PRUint32 yourNativeRDFNode,
void *yourJobject) :
nsActionEvent(),
mInitContext(yourInitContext), mNativeRDFNode(yourNativeRDFNode),
mJobject(yourJobject)
{
}
void *
wsRDFHasMoreElementsEvent::handleEvent ()
{
if (!mInitContext) {
return (void *) NS_ERROR_UNEXPECTED;
}
nsresult rv;
jboolean result = JNI_FALSE;
PRBool prResult = PR_FALSE;
// assert -1 != nativeRDFNode
jint nativeEnum;
JNIEnv *env = (JNIEnv *) JNU_GetEnv(gVm, JNI_VERSION);
if (-1 == (nativeEnum = getNativeEnumFromJava(env, (jobject) mJobject,
mNativeRDFNode))) {
::util_ThrowExceptionToJava(env, "Exception: nativeHasMoreElements: Can't get nativeEnum from nativeRDFNode.");
return (void *) NS_ERROR_UNEXPECTED;
}
nsCOMPtr<nsISimpleEnumerator> enumerator = (nsISimpleEnumerator *)nativeEnum;
rv = enumerator->HasMoreElements(&prResult);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Exception: nativeHasMoreElements: Can't ask nsISimpleEnumerator->HasMoreElements().");
return (void *) NS_ERROR_UNEXPECTED;
}
result = (PR_FALSE == prResult) ? JNI_FALSE : JNI_TRUE;
return (void *) result;
} // handleEvent()
wsRDFNextElementEvent::wsRDFNextElementEvent(WebShellInitContext* yourInitContext,
PRUint32 yourNativeRDFNode,
void *yourJobject) :
nsActionEvent(),
mInitContext(yourInitContext), mNativeRDFNode(yourNativeRDFNode),
mJobject(yourJobject)
{
}
void *
wsRDFNextElementEvent::handleEvent ()
{
if (!mInitContext) {
return (void *) NS_ERROR_UNEXPECTED;
}
nsresult rv;
jint result = -1;
PRBool hasMoreElements = PR_FALSE;
// assert -1 != nativeRDFNode
jint nativeEnum;
nsCOMPtr<nsISupports> supportsResult;
nsCOMPtr<nsIRDFNode> nodeResult;
JNIEnv *env = (JNIEnv *) JNU_GetEnv(gVm, JNI_VERSION);
if (-1 == (nativeEnum = getNativeEnumFromJava(env, (jobject) mJobject,
mNativeRDFNode))) {
::util_ThrowExceptionToJava(env, "Exception: nativeNextElement: Can't get nativeEnum from nativeRDFNode.");
return (void *) NS_ERROR_UNEXPECTED;
}
nsCOMPtr<nsISimpleEnumerator> enumerator = (nsISimpleEnumerator *)nativeEnum;
rv = enumerator->HasMoreElements(&hasMoreElements);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Exception: nativeNextElement: Can't ask nsISimpleEnumerator->HasMoreElements().");
return (void *) NS_ERROR_UNEXPECTED;
}
if (!hasMoreElements) {
return (void *) NS_ERROR_UNEXPECTED;
}
rv = enumerator->GetNext(getter_AddRefs(supportsResult));
if (NS_FAILED(rv)) {
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("Exception: nativeNextElement: Can't get next from enumerator.\n"));
}
return (void *) NS_ERROR_UNEXPECTED;
}
// make sure it's an RDFNode
rv = supportsResult->QueryInterface(NS_GET_IID(nsIRDFNode),
getter_AddRefs(nodeResult));
if (NS_FAILED(rv)) {
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("Exception: nativeNextElement: next from enumerator is not an nsIRDFNode.\n"));
}
return (void *) NS_ERROR_UNEXPECTED;
}
result = (jint)nodeResult.get();
((nsISupports *)result)->AddRef();
return (void *) result;
} // handleEvent()
wsRDFFinalizeEvent::wsRDFFinalizeEvent(void *yourJobject) :
nsActionEvent(),
mJobject(yourJobject)
{
}
void *
wsRDFFinalizeEvent::handleEvent ()
{
if (!mJobject) {
return (void *) NS_ERROR_UNEXPECTED;
}
jint nativeEnum, nativeContainer;
JNIEnv *env = (JNIEnv *) JNU_GetEnv(gVm, JNI_VERSION);
// release the nsISimpleEnumerator
if (-1 == (nativeEnum =
::util_GetIntValueFromInstance(env, (jobject) mJobject,
"nativeEnum"))) {
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("nativeFinalize: Can't get fieldID for nativeEnum.\n"));
}
return (void *) NS_ERROR_UNEXPECTED;
}
nsCOMPtr<nsISimpleEnumerator> enumerator =
(nsISimpleEnumerator *) nativeEnum;
((nsISupports *)enumerator.get())->Release();
// release the nsIRDFContainer
if (-1 == (nativeContainer =
::util_GetIntValueFromInstance(env, (jobject) mJobject,
"nativeContainer"))) {
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("nativeFinalize: Can't get fieldID for nativeContainerFieldID.\n"));
}
return (void *) NS_ERROR_UNEXPECTED;
}
nsCOMPtr<nsIRDFContainer> container =
(nsIRDFContainer *) nativeContainer;
((nsISupports *)container.get())->Release();
return (void *) NS_OK;
} // handleEvent()
//
// Local functions
//
jint getNativeEnumFromJava(JNIEnv *env, jobject obj, jint nativeRDFNode)
{
nsresult rv;
jint result = -1;
result = ::util_GetIntValueFromInstance(env, obj, "nativeEnum");
// if the field has been initialized, just return the value
if (-1 != result) {
// NORMAL EXIT 1
return result;
}
// else, we need to create the enum
nsCOMPtr<nsIRDFNode> node = (nsIRDFNode *) nativeRDFNode;
nsCOMPtr<nsIRDFResource> nodeResource;
nsCOMPtr<nsIRDFContainer> container;
nsCOMPtr<nsISimpleEnumerator> enumerator;
rv = node->QueryInterface(NS_GET_IID(nsIRDFResource),
getter_AddRefs(nodeResource));
if (NS_FAILED(rv)) {
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("getNativeEnumFromJava: Argument nativeRDFNode isn't an nsIRDFResource.\n"));
}
return -1;
}
PR_ASSERT(gComponentManager);
// get a container in order to get the enum
rv = gComponentManager->CreateInstance(kRDFContainerCID,
nsnull,
NS_GET_IID(nsIRDFContainer),
getter_AddRefs(container));
if (NS_FAILED(rv)) {
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("recursiveResourceTraversal: can't get a new container\n"));
}
return -1;
}
rv = container->Init(gBookmarksDataSource, nodeResource);
if (NS_FAILED(rv)) {
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("getNativeEnumFromJava: Can't Init container.\n"));
}
return -1;
}
rv = container->GetElements(getter_AddRefs(enumerator));
if (NS_FAILED(rv)) {
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("getNativeEnumFromJava: Can't get enumeration from container.\n"));
}
return -1;
}
// IMPORTANT: Store the enum back into java
::util_SetIntValueForInstance(env,obj,"nativeEnum",(jint)enumerator.get());
// IMPORTANT: make sure it doesn't get deleted when it goes out of scope
((nsISupports *)enumerator.get())->AddRef();
// PENDING(edburns): I'm not sure if we need to keep the
// nsIRDFContainer from being destructed in order to maintain the
// validity of the nsISimpleEnumerator that came from the container.
// Just to be safe, I'm doing so.
::util_SetIntValueForInstance(env, obj, "nativeContainer",
(jint) container.get());
((nsISupports *)container.get())->AddRef();
// NORMAL EXIT 2
result = (jint)enumerator.get();
return result;
}
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