Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-11-26 06:11:37 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Changed the printing to use the ImageGroup notifications rather than the document loader because a document is *not* being loaded... This fixes printing after the changes to the document loader notifications.

Browse Source
This commit is contained in:
rpotts%netscape.com 1999-09-22 07:34:31 +00:00
parent 5cdaefc592
commit 547771542f
3 changed files with 519 additions and 405 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

308
content/base/src/nsDocumentViewer.cpp
View File

@ -23,7 +23,9 @@
#include "nsISupports.h"
#include "nsIContentViewerContainer.h"
#include "nsIDocumentViewer.h"
#include "nsIDocumentLoaderObserver.h"
#include "nsIImageGroup.h"
#include "nsIImageObserver.h"
#include "nsIDocument.h"
#include "nsIPresContext.h"
@ -52,6 +54,11 @@
#include "nsIWebShell.h"
#include "nsIServiceManager.h"
#include "nsIEventQueueService.h"
#include "nsIEventQueue.h"
static NS_DEFINE_CID(kEventQueueService, NS_EVENTQUEUESERVICE_CID);
static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
#ifdef NS_DEBUG
@ -60,7 +67,8 @@ static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
#undef NOISY_VIEWER
#endif
class DocumentViewerImpl : public nsIDocumentViewer, public nsIDocumentLoaderObserver
class DocumentViewerImpl : public nsIDocumentViewer,
public nsIImageGroupObserver
{
public:
DocumentViewerImpl();
@ -99,44 +107,9 @@ public:
NS_IMETHOD CreateDocumentViewerUsing(nsIPresContext* aPresContext,
nsIDocumentViewer*& aResult);
// nsIDocumentLoaderObserver interface
NS_IMETHOD OnStartDocumentLoad(nsIDocumentLoader* loader, nsIURI* aURL, const char* aCommand) {return NS_OK;}
#ifndef NECKO
NS_IMETHOD OnEndDocumentLoad(nsIDocumentLoader* loader, nsIURI *aUrl, PRInt32 aStatus,nsIDocumentLoaderObserver * aObserver){return NS_OK;}
#else
NS_IMETHOD OnEndDocumentLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsresult aStatus,nsIDocumentLoaderObserver * aObserver){return NS_OK;}
#endif // NECKO
#ifndef NECKO
NS_IMETHOD OnStartURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, const char* aContentType,nsIContentViewer* aViewer);
#else
NS_IMETHOD OnStartURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsIContentViewer* aViewer);
#endif // NECKO
#ifndef NECKO
NS_IMETHOD OnProgressURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, PRUint32 aProgress,PRUint32 aProgressMax){return NS_OK;}
#else
NS_IMETHOD OnProgressURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, PRUint32 aProgress,PRUint32 aProgressMax){return NS_OK;}
#endif // NECKO
#ifndef NECKO
NS_IMETHOD OnStatusURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, nsString& aMsg){return NS_OK;}
#else
NS_IMETHOD OnStatusURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsString& aMsg){return NS_OK;}
#endif // NECKO
#ifndef NECKO
NS_IMETHOD OnEndURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, PRInt32 aStatus);
#else
NS_IMETHOD OnEndURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsresult aStatus);
#endif // NECKO
#ifndef NECKO
NS_IMETHOD HandleUnknownContentType(nsIDocumentLoader* loader,nsIURI *aURL,const char *aContentType,const char *aCommand ){return NS_OK;}
#else
NS_IMETHOD HandleUnknownContentType(nsIDocumentLoader* loader,nsIChannel* channel,const char *aContentType,const char *aCommand ){return NS_OK;}
#endif // NECKO
// nsIImageGroupObserver interface...
virtual void Notify(nsIImageGroup *aImageGroup,
nsImageGroupNotification aNotificationType);
protected:
virtual ~DocumentViewerImpl();
@ -148,6 +121,14 @@ private:
const nsRect& aBounds,
nsScrollPreference aScrolling);
//
// The following three methods are used for printing...
//
void DocumentReadyForPrinting();
static void PR_CALLBACK HandlePLEvent(PLEvent* aEvent);
static void PR_CALLBACK DestroyPLEvent(PLEvent* aEvent);
protected:
// IMPORTANT: The ownership implicit in the following member
// variables has been explicitly checked and set using nsCOMPtr
@ -536,16 +517,18 @@ static NS_DEFINE_IID(kDeviceContextSpecFactoryCID, NS_DEVICE_CONTEXT_SPEC_FACTOR
NS_IMETHODIMP
DocumentViewerImpl::Print(void)
{
nsIContentViewerContainer *containerResult;
nsIWebShell *webContainer;
nsIDeviceContextSpecFactory *factory = nsnull;
PRInt32 width,height;
nsIPref *prefs;
PRBool isBusy;
nsCOMPtr<nsIContentViewerContainer> containerResult;
nsCOMPtr<nsIWebShell> webContainer;
nsCOMPtr<nsIDeviceContextSpecFactory> factory;
PRInt32 width,height;
nsCOMPtr<nsIPref> prefs;
nsComponentManager::CreateInstance(kDeviceContextSpecFactoryCID, nsnull,kIDeviceContextSpecFactoryIID,(void **)&factory);
nsComponentManager::CreateInstance(kDeviceContextSpecFactoryCID,
nsnull,
kIDeviceContextSpecFactoryIID,
(void **)getter_AddRefs(factory));
if (nsnull != factory) {
if (factory) {
#ifdef DEBUG_dcone
printf("PRINT JOB STARTING\n");
@ -564,11 +547,9 @@ PRBool isBusy;
NS_RELEASE(devspec);
// Get the webshell for this documentviewer
rv = this->GetContainer(containerResult);
containerResult->QueryInterface(kIWebShellIID,(void**)&webContainer);
rv = this->GetContainer(*getter_AddRefs(containerResult));
webContainer = do_QueryInterface(containerResult);
if(webContainer) {
webContainer->SetDocLoaderObserver(this);
// load the document and do the initial reflow on the entire document
rv = NS_NewPrintContext(&mPrintPC);
if(NS_FAILED(rv)){
@ -576,7 +557,7 @@ PRBool isBusy;
}
mPrintDC->GetDeviceSurfaceDimensions(width,height);
mPresContext->GetPrefs(&prefs);
mPresContext->GetPrefs(getter_AddRefs(prefs));
mPrintPC->Init(mPrintDC,prefs);
CreateStyleSet(mDocument,&mPrintSS);
@ -609,6 +590,13 @@ PRBool isBusy;
// setup hierarchical relationship in view manager
mPrintVM->SetRootView(mPrintView);
mPrintPS->Init(mDocument,mPrintPC,mPrintVM,mPrintSS);
nsCOMPtr<nsIImageGroup> imageGroup;
mPrintPC->GetImageGroup(getter_AddRefs(imageGroup));
if (imageGroup) {
imageGroup->AddObserver(this);
}
mPrintPS->InitialReflow(width,height);
#ifdef DEBUG_dcone
@ -659,19 +647,13 @@ PRBool isBusy;
printf(" DeviceDimension w = %d h = %d\n",i1,i2);
#endif
// check NETLIB to see if something was kicked off,
webContainer->IsBusy(isBusy);
// if this did not fire any loads, then continue printing
if(!isBusy){
PrintContent(webContainer,mPrintDC);
webContainer->SetDocLoaderObserver(0);
mPrintPS->EndObservingDocument();
NS_RELEASE(mPrintPS);
NS_RELEASE(mPrintVM);
NS_RELEASE(mPrintSS);
NS_RELEASE(mPrintDC);
//
// The mIsPrinting flag is set when the ImageGroup observer is
// notified that images must be loaded as a result of the
// InitialReflow...
//
if(!mIsPrinting){
DocumentReadyForPrinting();
#ifdef DEBUG_dcone
printf("PRINT JOB ENDING, OBSERVER WAS NOT CALLED\n");
#endif
@ -680,13 +662,10 @@ PRBool isBusy;
#ifdef DEBUG_dcone
printf("PRINTING OBSERVER STARTED\n");
#endif
mIsPrinting = PR_TRUE;
mNumURLStarts = 0;
}
}
}
}
NS_RELEASE(factory);
}
return NS_OK;
}
@ -698,15 +677,15 @@ PRBool isBusy;
NS_IMETHODIMP
DocumentViewerImpl::PrintContent(nsIWebShell *aParent,nsIDeviceContext *aDContext)
{
nsIStyleSet *ss;
nsIPref *prefs;
nsIViewManager *vm;
PRInt32 width, height;
nsIView *view;
nsresult rv;
PRInt32 count,i;
nsIWebShell *childWebShell;
nsIContentViewer *viewer;
nsCOMPtr<nsIStyleSet> ss;
nsCOMPtr<nsIPref> prefs;
nsCOMPtr<nsIViewManager> vm;
PRInt32 width, height;
nsIView *view;
nsresult rv;
PRInt32 count,i;
nsIWebShell *childWebShell;
nsIContentViewer *viewer;
aParent->GetChildCount(count);
@ -715,32 +694,38 @@ nsIContentViewer *viewer;
aParent->ChildAt(i,childWebShell);
childWebShell->GetContentViewer(&viewer);
viewer->PrintContent(childWebShell,aDContext);
NS_RELEASE(childWebShell);
NS_RELEASE(viewer);
}
} else {
aDContext->BeginDocument();
aDContext->GetDeviceSurfaceDimensions(width, height);
nsIPresContext *cx;
rv = NS_NewPrintContext(&cx);
nsCOMPtr<nsIPresContext> cx;
rv = NS_NewPrintContext(getter_AddRefs(cx));
if (NS_FAILED(rv)) {
return rv;
}
mPresContext->GetPrefs(&prefs);
mPresContext->GetPrefs(getter_AddRefs(prefs));
cx->Init(aDContext, prefs);
nsCompatibility mode;
mPresContext->GetCompatibilityMode(&mode);
cx->SetCompatibilityMode(mode);
CreateStyleSet(mDocument, &ss);
CreateStyleSet(mDocument, getter_AddRefs(ss));
nsIPresShell *ps;
rv = NS_NewPresShell(&ps);
nsCOMPtr<nsIPresShell> ps;
rv = NS_NewPresShell(getter_AddRefs(ps));
if (NS_FAILED(rv)) {
return rv;
}
rv = nsComponentManager::CreateInstance(kViewManagerCID,nsnull,kIViewManagerIID,(void **)&vm);
rv = nsComponentManager::CreateInstance(kViewManagerCID,
nsnull,
kIViewManagerIID,
(void **)getter_AddRefs(vm));
if (NS_FAILED(rv)) {
return rv;
}
@ -780,66 +765,58 @@ nsIContentViewer *viewer;
aDContext->EndDocument();
ps->EndObservingDocument();
NS_RELEASE(ps);
NS_RELEASE(vm);
NS_RELEASE(ss);
NS_IF_RELEASE(prefs); // XXX why is the prefs null??
}
}
return NS_OK;
}
/** ---------------------------------------------------
* See documentation above in the DocumentViewerImpl class definition
* @update 07/09/99 dwc
*/
NS_IMETHODIMP
#ifdef NECKO
DocumentViewerImpl::OnStartURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsIContentViewer* aViewer)
#else
DocumentViewerImpl::OnStartURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, const char* aContentType,nsIContentViewer* aViewer)
#endif
void DocumentViewerImpl::Notify(nsIImageGroup *aImageGroup,
nsImageGroupNotification aNotificationType)
{
mNumURLStarts++;
return NS_OK;
}
//
// Image are being loaded... Set the flag to delay printing until
// all images are loaded.
//
if (aNotificationType == nsImageGroupNotification_kStartedLoading) {
mIsPrinting = PR_TRUE;
}
//
// All the images have been loaded, so the document is ready to print.
//
// However, at this point we are unable to release the resources that
// were allocated for printing... This is because ImgLib resources will
// be deleted and *this* is an ImgLib notification routine. So, fire an
// event to do the actual printing.
//
else if(aNotificationType == nsImageGroupNotification_kFinishedLoading) {
nsresult rv;
nsCOMPtr<nsIEventQueue> eventQ;
/** ---------------------------------------------------
* See documentation above in the DocumentViewerImpl class definition
* @update 07/09/99 dwc
*/
NS_IMETHODIMP
#ifdef NECKO
DocumentViewerImpl::OnEndURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsresult aStatus)
#else
DocumentViewerImpl::OnEndURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, PRInt32 aStatus)
#endif // NECKO
{
nsIContentViewerContainer *containerResult;
nsIWebShell *webContainer;
nsresult rv;
// Get the event queue of the current thread...
NS_WITH_SERVICE(nsIEventQueueService, eventQService, kEventQueueService, &rv);
if (NS_FAILED(rv)) return;
mNumURLStarts--;
rv = eventQService->GetThreadEventQueue(PR_CurrentThread(),
getter_AddRefs(eventQ));
if (NS_FAILED(rv)) return;
if((mIsPrinting==PR_TRUE) && (mNumURLStarts == 0)) {
rv = this->GetContainer(containerResult);
containerResult->QueryInterface(kIWebShellIID,(void**)&webContainer);
if(webContainer) {
PrintContent(webContainer,mPrintDC);
PRStatus status;
PLEvent *event = new PLEvent;
if (!event) return;
// printing is complete, clean up now
mIsPrinting = PR_FALSE;
webContainer->SetDocLoaderObserver(0);
//
// AddRef this because it is being placed in the PLEvent struct.
// It will be Released when DestroyPLEvent is called...
//
NS_ADDREF_THIS();
PL_InitEvent(event,
this,
(PLHandleEventProc) DocumentViewerImpl::HandlePLEvent,
(PLDestroyEventProc) DocumentViewerImpl::DestroyPLEvent);
mPrintPS->EndObservingDocument();
NS_RELEASE(mPrintPS);
NS_RELEASE(mPrintVM);
NS_RELEASE(mPrintSS);
NS_RELEASE(mPrintDC);
}
}
return NS_OK;
status = eventQ->PostEvent(event);
}
}
@ -994,3 +971,64 @@ DocumentViewerImpl::CreateDocumentViewerUsing(nsIPresContext* aPresContext,
return rv;
}
void PR_CALLBACK DocumentViewerImpl::HandlePLEvent(PLEvent* aEvent)
{
DocumentViewerImpl *viewer;
viewer = (DocumentViewerImpl*)PL_GetEventOwner(aEvent);
NS_ASSERTION(viewer, "The event owner is null.");
if (viewer) {
viewer->DocumentReadyForPrinting();
}
}
void PR_CALLBACK DocumentViewerImpl::DestroyPLEvent(PLEvent* aEvent)
{
DocumentViewerImpl *viewer;
viewer = (DocumentViewerImpl*)PL_GetEventOwner(aEvent);
NS_IF_RELEASE(viewer);
delete aEvent;
}
void DocumentViewerImpl::DocumentReadyForPrinting()
{
nsresult rv;
nsCOMPtr<nsIContentViewerContainer> containerResult;
nsCOMPtr<nsIWebShell> webContainer;
rv = this->GetContainer(*getter_AddRefs(containerResult));
webContainer = do_QueryInterface(containerResult);
if(webContainer) {
//
// Remove ourselves as an image group observer...
//
nsCOMPtr<nsIImageGroup> imageGroup;
mPrintPC->GetImageGroup(getter_AddRefs(imageGroup));
if (imageGroup) {
imageGroup->RemoveObserver(this);
}
//
// Send the document to the printer...
//
PrintContent(webContainer,mPrintDC);
// printing is complete, clean up now
mIsPrinting = PR_FALSE;
mPrintPS->EndObservingDocument();
NS_RELEASE(mPrintPS);
NS_RELEASE(mPrintVM);
NS_RELEASE(mPrintSS);
NS_RELEASE(mPrintDC);
}
}

308
layout/base/nsDocumentViewer.cpp
View File

@ -23,7 +23,9 @@
#include "nsISupports.h"
#include "nsIContentViewerContainer.h"
#include "nsIDocumentViewer.h"
#include "nsIDocumentLoaderObserver.h"
#include "nsIImageGroup.h"
#include "nsIImageObserver.h"
#include "nsIDocument.h"
#include "nsIPresContext.h"
@ -52,6 +54,11 @@
#include "nsIWebShell.h"
#include "nsIServiceManager.h"
#include "nsIEventQueueService.h"
#include "nsIEventQueue.h"
static NS_DEFINE_CID(kEventQueueService, NS_EVENTQUEUESERVICE_CID);
static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
#ifdef NS_DEBUG
@ -60,7 +67,8 @@ static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
#undef NOISY_VIEWER
#endif
class DocumentViewerImpl : public nsIDocumentViewer, public nsIDocumentLoaderObserver
class DocumentViewerImpl : public nsIDocumentViewer,
public nsIImageGroupObserver
{
public:
DocumentViewerImpl();
@ -99,44 +107,9 @@ public:
NS_IMETHOD CreateDocumentViewerUsing(nsIPresContext* aPresContext,
nsIDocumentViewer*& aResult);
// nsIDocumentLoaderObserver interface
NS_IMETHOD OnStartDocumentLoad(nsIDocumentLoader* loader, nsIURI* aURL, const char* aCommand) {return NS_OK;}
#ifndef NECKO
NS_IMETHOD OnEndDocumentLoad(nsIDocumentLoader* loader, nsIURI *aUrl, PRInt32 aStatus,nsIDocumentLoaderObserver * aObserver){return NS_OK;}
#else
NS_IMETHOD OnEndDocumentLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsresult aStatus,nsIDocumentLoaderObserver * aObserver){return NS_OK;}
#endif // NECKO
#ifndef NECKO
NS_IMETHOD OnStartURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, const char* aContentType,nsIContentViewer* aViewer);
#else
NS_IMETHOD OnStartURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsIContentViewer* aViewer);
#endif // NECKO
#ifndef NECKO
NS_IMETHOD OnProgressURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, PRUint32 aProgress,PRUint32 aProgressMax){return NS_OK;}
#else
NS_IMETHOD OnProgressURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, PRUint32 aProgress,PRUint32 aProgressMax){return NS_OK;}
#endif // NECKO
#ifndef NECKO
NS_IMETHOD OnStatusURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, nsString& aMsg){return NS_OK;}
#else
NS_IMETHOD OnStatusURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsString& aMsg){return NS_OK;}
#endif // NECKO
#ifndef NECKO
NS_IMETHOD OnEndURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, PRInt32 aStatus);
#else
NS_IMETHOD OnEndURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsresult aStatus);
#endif // NECKO
#ifndef NECKO
NS_IMETHOD HandleUnknownContentType(nsIDocumentLoader* loader,nsIURI *aURL,const char *aContentType,const char *aCommand ){return NS_OK;}
#else
NS_IMETHOD HandleUnknownContentType(nsIDocumentLoader* loader,nsIChannel* channel,const char *aContentType,const char *aCommand ){return NS_OK;}
#endif // NECKO
// nsIImageGroupObserver interface...
virtual void Notify(nsIImageGroup *aImageGroup,
nsImageGroupNotification aNotificationType);
protected:
virtual ~DocumentViewerImpl();
@ -148,6 +121,14 @@ private:
const nsRect& aBounds,
nsScrollPreference aScrolling);
//
// The following three methods are used for printing...
//
void DocumentReadyForPrinting();
static void PR_CALLBACK HandlePLEvent(PLEvent* aEvent);
static void PR_CALLBACK DestroyPLEvent(PLEvent* aEvent);
protected:
// IMPORTANT: The ownership implicit in the following member
// variables has been explicitly checked and set using nsCOMPtr
@ -536,16 +517,18 @@ static NS_DEFINE_IID(kDeviceContextSpecFactoryCID, NS_DEVICE_CONTEXT_SPEC_FACTOR
NS_IMETHODIMP
DocumentViewerImpl::Print(void)
{
nsIContentViewerContainer *containerResult;
nsIWebShell *webContainer;
nsIDeviceContextSpecFactory *factory = nsnull;
PRInt32 width,height;
nsIPref *prefs;
PRBool isBusy;
nsCOMPtr<nsIContentViewerContainer> containerResult;
nsCOMPtr<nsIWebShell> webContainer;
nsCOMPtr<nsIDeviceContextSpecFactory> factory;
PRInt32 width,height;
nsCOMPtr<nsIPref> prefs;
nsComponentManager::CreateInstance(kDeviceContextSpecFactoryCID, nsnull,kIDeviceContextSpecFactoryIID,(void **)&factory);
nsComponentManager::CreateInstance(kDeviceContextSpecFactoryCID,
nsnull,
kIDeviceContextSpecFactoryIID,
(void **)getter_AddRefs(factory));
if (nsnull != factory) {
if (factory) {
#ifdef DEBUG_dcone
printf("PRINT JOB STARTING\n");
@ -564,11 +547,9 @@ PRBool isBusy;
NS_RELEASE(devspec);
// Get the webshell for this documentviewer
rv = this->GetContainer(containerResult);
containerResult->QueryInterface(kIWebShellIID,(void**)&webContainer);
rv = this->GetContainer(*getter_AddRefs(containerResult));
webContainer = do_QueryInterface(containerResult);
if(webContainer) {
webContainer->SetDocLoaderObserver(this);
// load the document and do the initial reflow on the entire document
rv = NS_NewPrintContext(&mPrintPC);
if(NS_FAILED(rv)){
@ -576,7 +557,7 @@ PRBool isBusy;
}
mPrintDC->GetDeviceSurfaceDimensions(width,height);
mPresContext->GetPrefs(&prefs);
mPresContext->GetPrefs(getter_AddRefs(prefs));
mPrintPC->Init(mPrintDC,prefs);
CreateStyleSet(mDocument,&mPrintSS);
@ -609,6 +590,13 @@ PRBool isBusy;
// setup hierarchical relationship in view manager
mPrintVM->SetRootView(mPrintView);
mPrintPS->Init(mDocument,mPrintPC,mPrintVM,mPrintSS);
nsCOMPtr<nsIImageGroup> imageGroup;
mPrintPC->GetImageGroup(getter_AddRefs(imageGroup));
if (imageGroup) {
imageGroup->AddObserver(this);
}
mPrintPS->InitialReflow(width,height);
#ifdef DEBUG_dcone
@ -659,19 +647,13 @@ PRBool isBusy;
printf(" DeviceDimension w = %d h = %d\n",i1,i2);
#endif
// check NETLIB to see if something was kicked off,
webContainer->IsBusy(isBusy);
// if this did not fire any loads, then continue printing
if(!isBusy){
PrintContent(webContainer,mPrintDC);
webContainer->SetDocLoaderObserver(0);
mPrintPS->EndObservingDocument();
NS_RELEASE(mPrintPS);
NS_RELEASE(mPrintVM);
NS_RELEASE(mPrintSS);
NS_RELEASE(mPrintDC);
//
// The mIsPrinting flag is set when the ImageGroup observer is
// notified that images must be loaded as a result of the
// InitialReflow...
//
if(!mIsPrinting){
DocumentReadyForPrinting();
#ifdef DEBUG_dcone
printf("PRINT JOB ENDING, OBSERVER WAS NOT CALLED\n");
#endif
@ -680,13 +662,10 @@ PRBool isBusy;
#ifdef DEBUG_dcone
printf("PRINTING OBSERVER STARTED\n");
#endif
mIsPrinting = PR_TRUE;
mNumURLStarts = 0;
}
}
}
}
NS_RELEASE(factory);
}
return NS_OK;
}
@ -698,15 +677,15 @@ PRBool isBusy;
NS_IMETHODIMP
DocumentViewerImpl::PrintContent(nsIWebShell *aParent,nsIDeviceContext *aDContext)
{
nsIStyleSet *ss;
nsIPref *prefs;
nsIViewManager *vm;
PRInt32 width, height;
nsIView *view;
nsresult rv;
PRInt32 count,i;
nsIWebShell *childWebShell;
nsIContentViewer *viewer;
nsCOMPtr<nsIStyleSet> ss;
nsCOMPtr<nsIPref> prefs;
nsCOMPtr<nsIViewManager> vm;
PRInt32 width, height;
nsIView *view;
nsresult rv;
PRInt32 count,i;
nsIWebShell *childWebShell;
nsIContentViewer *viewer;
aParent->GetChildCount(count);
@ -715,32 +694,38 @@ nsIContentViewer *viewer;
aParent->ChildAt(i,childWebShell);
childWebShell->GetContentViewer(&viewer);
viewer->PrintContent(childWebShell,aDContext);
NS_RELEASE(childWebShell);
NS_RELEASE(viewer);
}
} else {
aDContext->BeginDocument();
aDContext->GetDeviceSurfaceDimensions(width, height);
nsIPresContext *cx;
rv = NS_NewPrintContext(&cx);
nsCOMPtr<nsIPresContext> cx;
rv = NS_NewPrintContext(getter_AddRefs(cx));
if (NS_FAILED(rv)) {
return rv;
}
mPresContext->GetPrefs(&prefs);
mPresContext->GetPrefs(getter_AddRefs(prefs));
cx->Init(aDContext, prefs);
nsCompatibility mode;
mPresContext->GetCompatibilityMode(&mode);
cx->SetCompatibilityMode(mode);
CreateStyleSet(mDocument, &ss);
CreateStyleSet(mDocument, getter_AddRefs(ss));
nsIPresShell *ps;
rv = NS_NewPresShell(&ps);
nsCOMPtr<nsIPresShell> ps;
rv = NS_NewPresShell(getter_AddRefs(ps));
if (NS_FAILED(rv)) {
return rv;
}
rv = nsComponentManager::CreateInstance(kViewManagerCID,nsnull,kIViewManagerIID,(void **)&vm);
rv = nsComponentManager::CreateInstance(kViewManagerCID,
nsnull,
kIViewManagerIID,
(void **)getter_AddRefs(vm));
if (NS_FAILED(rv)) {
return rv;
}
@ -780,66 +765,58 @@ nsIContentViewer *viewer;
aDContext->EndDocument();
ps->EndObservingDocument();
NS_RELEASE(ps);
NS_RELEASE(vm);
NS_RELEASE(ss);
NS_IF_RELEASE(prefs); // XXX why is the prefs null??
}
}
return NS_OK;
}
/** ---------------------------------------------------
* See documentation above in the DocumentViewerImpl class definition
* @update 07/09/99 dwc
*/
NS_IMETHODIMP
#ifdef NECKO
DocumentViewerImpl::OnStartURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsIContentViewer* aViewer)
#else
DocumentViewerImpl::OnStartURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, const char* aContentType,nsIContentViewer* aViewer)
#endif
void DocumentViewerImpl::Notify(nsIImageGroup *aImageGroup,
nsImageGroupNotification aNotificationType)
{
mNumURLStarts++;
return NS_OK;
}
//
// Image are being loaded... Set the flag to delay printing until
// all images are loaded.
//
if (aNotificationType == nsImageGroupNotification_kStartedLoading) {
mIsPrinting = PR_TRUE;
}
//
// All the images have been loaded, so the document is ready to print.
//
// However, at this point we are unable to release the resources that
// were allocated for printing... This is because ImgLib resources will
// be deleted and *this* is an ImgLib notification routine. So, fire an
// event to do the actual printing.
//
else if(aNotificationType == nsImageGroupNotification_kFinishedLoading) {
nsresult rv;
nsCOMPtr<nsIEventQueue> eventQ;
/** ---------------------------------------------------
* See documentation above in the DocumentViewerImpl class definition
* @update 07/09/99 dwc
*/
NS_IMETHODIMP
#ifdef NECKO
DocumentViewerImpl::OnEndURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsresult aStatus)
#else
DocumentViewerImpl::OnEndURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, PRInt32 aStatus)
#endif // NECKO
{
nsIContentViewerContainer *containerResult;
nsIWebShell *webContainer;
nsresult rv;
// Get the event queue of the current thread...
NS_WITH_SERVICE(nsIEventQueueService, eventQService, kEventQueueService, &rv);
if (NS_FAILED(rv)) return;
mNumURLStarts--;
rv = eventQService->GetThreadEventQueue(PR_CurrentThread(),
getter_AddRefs(eventQ));
if (NS_FAILED(rv)) return;
if((mIsPrinting==PR_TRUE) && (mNumURLStarts == 0)) {
rv = this->GetContainer(containerResult);
containerResult->QueryInterface(kIWebShellIID,(void**)&webContainer);
if(webContainer) {
PrintContent(webContainer,mPrintDC);
PRStatus status;
PLEvent *event = new PLEvent;
if (!event) return;
// printing is complete, clean up now
mIsPrinting = PR_FALSE;
webContainer->SetDocLoaderObserver(0);
//
// AddRef this because it is being placed in the PLEvent struct.
// It will be Released when DestroyPLEvent is called...
//
NS_ADDREF_THIS();
PL_InitEvent(event,
this,
(PLHandleEventProc) DocumentViewerImpl::HandlePLEvent,
(PLDestroyEventProc) DocumentViewerImpl::DestroyPLEvent);
mPrintPS->EndObservingDocument();
NS_RELEASE(mPrintPS);
NS_RELEASE(mPrintVM);
NS_RELEASE(mPrintSS);
NS_RELEASE(mPrintDC);
}
}
return NS_OK;
status = eventQ->PostEvent(event);
}
}
@ -994,3 +971,64 @@ DocumentViewerImpl::CreateDocumentViewerUsing(nsIPresContext* aPresContext,
return rv;
}
void PR_CALLBACK DocumentViewerImpl::HandlePLEvent(PLEvent* aEvent)
{
DocumentViewerImpl *viewer;
viewer = (DocumentViewerImpl*)PL_GetEventOwner(aEvent);
NS_ASSERTION(viewer, "The event owner is null.");
if (viewer) {
viewer->DocumentReadyForPrinting();
}
}
void PR_CALLBACK DocumentViewerImpl::DestroyPLEvent(PLEvent* aEvent)
{
DocumentViewerImpl *viewer;
viewer = (DocumentViewerImpl*)PL_GetEventOwner(aEvent);
NS_IF_RELEASE(viewer);
delete aEvent;
}
void DocumentViewerImpl::DocumentReadyForPrinting()
{
nsresult rv;
nsCOMPtr<nsIContentViewerContainer> containerResult;
nsCOMPtr<nsIWebShell> webContainer;
rv = this->GetContainer(*getter_AddRefs(containerResult));
webContainer = do_QueryInterface(containerResult);
if(webContainer) {
//
// Remove ourselves as an image group observer...
//
nsCOMPtr<nsIImageGroup> imageGroup;
mPrintPC->GetImageGroup(getter_AddRefs(imageGroup));
if (imageGroup) {
imageGroup->RemoveObserver(this);
}
//
// Send the document to the printer...
//
PrintContent(webContainer,mPrintDC);
// printing is complete, clean up now
mIsPrinting = PR_FALSE;
mPrintPS->EndObservingDocument();
NS_RELEASE(mPrintPS);
NS_RELEASE(mPrintVM);
NS_RELEASE(mPrintSS);
NS_RELEASE(mPrintDC);
}
}

308
layout/base/src/nsDocumentViewer.cpp
View File

@ -23,7 +23,9 @@
#include "nsISupports.h"
#include "nsIContentViewerContainer.h"
#include "nsIDocumentViewer.h"
#include "nsIDocumentLoaderObserver.h"
#include "nsIImageGroup.h"
#include "nsIImageObserver.h"
#include "nsIDocument.h"
#include "nsIPresContext.h"
@ -52,6 +54,11 @@
#include "nsIWebShell.h"
#include "nsIServiceManager.h"
#include "nsIEventQueueService.h"
#include "nsIEventQueue.h"
static NS_DEFINE_CID(kEventQueueService, NS_EVENTQUEUESERVICE_CID);
static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
#ifdef NS_DEBUG
@ -60,7 +67,8 @@ static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
#undef NOISY_VIEWER
#endif
class DocumentViewerImpl : public nsIDocumentViewer, public nsIDocumentLoaderObserver
class DocumentViewerImpl : public nsIDocumentViewer,
public nsIImageGroupObserver
{
public:
DocumentViewerImpl();
@ -99,44 +107,9 @@ public:
NS_IMETHOD CreateDocumentViewerUsing(nsIPresContext* aPresContext,
nsIDocumentViewer*& aResult);
// nsIDocumentLoaderObserver interface
NS_IMETHOD OnStartDocumentLoad(nsIDocumentLoader* loader, nsIURI* aURL, const char* aCommand) {return NS_OK;}
#ifndef NECKO
NS_IMETHOD OnEndDocumentLoad(nsIDocumentLoader* loader, nsIURI *aUrl, PRInt32 aStatus,nsIDocumentLoaderObserver * aObserver){return NS_OK;}
#else
NS_IMETHOD OnEndDocumentLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsresult aStatus,nsIDocumentLoaderObserver * aObserver){return NS_OK;}
#endif // NECKO
#ifndef NECKO
NS_IMETHOD OnStartURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, const char* aContentType,nsIContentViewer* aViewer);
#else
NS_IMETHOD OnStartURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsIContentViewer* aViewer);
#endif // NECKO
#ifndef NECKO
NS_IMETHOD OnProgressURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, PRUint32 aProgress,PRUint32 aProgressMax){return NS_OK;}
#else
NS_IMETHOD OnProgressURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, PRUint32 aProgress,PRUint32 aProgressMax){return NS_OK;}
#endif // NECKO
#ifndef NECKO
NS_IMETHOD OnStatusURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, nsString& aMsg){return NS_OK;}
#else
NS_IMETHOD OnStatusURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsString& aMsg){return NS_OK;}
#endif // NECKO
#ifndef NECKO
NS_IMETHOD OnEndURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, PRInt32 aStatus);
#else
NS_IMETHOD OnEndURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsresult aStatus);
#endif // NECKO
#ifndef NECKO
NS_IMETHOD HandleUnknownContentType(nsIDocumentLoader* loader,nsIURI *aURL,const char *aContentType,const char *aCommand ){return NS_OK;}
#else
NS_IMETHOD HandleUnknownContentType(nsIDocumentLoader* loader,nsIChannel* channel,const char *aContentType,const char *aCommand ){return NS_OK;}
#endif // NECKO
// nsIImageGroupObserver interface...
virtual void Notify(nsIImageGroup *aImageGroup,
nsImageGroupNotification aNotificationType);
protected:
virtual ~DocumentViewerImpl();
@ -148,6 +121,14 @@ private:
const nsRect& aBounds,
nsScrollPreference aScrolling);
//
// The following three methods are used for printing...
//
void DocumentReadyForPrinting();
static void PR_CALLBACK HandlePLEvent(PLEvent* aEvent);
static void PR_CALLBACK DestroyPLEvent(PLEvent* aEvent);
protected:
// IMPORTANT: The ownership implicit in the following member
// variables has been explicitly checked and set using nsCOMPtr
@ -536,16 +517,18 @@ static NS_DEFINE_IID(kDeviceContextSpecFactoryCID, NS_DEVICE_CONTEXT_SPEC_FACTOR
NS_IMETHODIMP
DocumentViewerImpl::Print(void)
{
nsIContentViewerContainer *containerResult;
nsIWebShell *webContainer;
nsIDeviceContextSpecFactory *factory = nsnull;
PRInt32 width,height;
nsIPref *prefs;
PRBool isBusy;
nsCOMPtr<nsIContentViewerContainer> containerResult;
nsCOMPtr<nsIWebShell> webContainer;
nsCOMPtr<nsIDeviceContextSpecFactory> factory;
PRInt32 width,height;
nsCOMPtr<nsIPref> prefs;
nsComponentManager::CreateInstance(kDeviceContextSpecFactoryCID, nsnull,kIDeviceContextSpecFactoryIID,(void **)&factory);
nsComponentManager::CreateInstance(kDeviceContextSpecFactoryCID,
nsnull,
kIDeviceContextSpecFactoryIID,
(void **)getter_AddRefs(factory));
if (nsnull != factory) {
if (factory) {
#ifdef DEBUG_dcone
printf("PRINT JOB STARTING\n");
@ -564,11 +547,9 @@ PRBool isBusy;
NS_RELEASE(devspec);
// Get the webshell for this documentviewer
rv = this->GetContainer(containerResult);
containerResult->QueryInterface(kIWebShellIID,(void**)&webContainer);
rv = this->GetContainer(*getter_AddRefs(containerResult));
webContainer = do_QueryInterface(containerResult);
if(webContainer) {
webContainer->SetDocLoaderObserver(this);
// load the document and do the initial reflow on the entire document
rv = NS_NewPrintContext(&mPrintPC);
if(NS_FAILED(rv)){
@ -576,7 +557,7 @@ PRBool isBusy;
}
mPrintDC->GetDeviceSurfaceDimensions(width,height);
mPresContext->GetPrefs(&prefs);
mPresContext->GetPrefs(getter_AddRefs(prefs));
mPrintPC->Init(mPrintDC,prefs);
CreateStyleSet(mDocument,&mPrintSS);
@ -609,6 +590,13 @@ PRBool isBusy;
// setup hierarchical relationship in view manager
mPrintVM->SetRootView(mPrintView);
mPrintPS->Init(mDocument,mPrintPC,mPrintVM,mPrintSS);
nsCOMPtr<nsIImageGroup> imageGroup;
mPrintPC->GetImageGroup(getter_AddRefs(imageGroup));
if (imageGroup) {
imageGroup->AddObserver(this);
}
mPrintPS->InitialReflow(width,height);
#ifdef DEBUG_dcone
@ -659,19 +647,13 @@ PRBool isBusy;
printf(" DeviceDimension w = %d h = %d\n",i1,i2);
#endif
// check NETLIB to see if something was kicked off,
webContainer->IsBusy(isBusy);
// if this did not fire any loads, then continue printing
if(!isBusy){
PrintContent(webContainer,mPrintDC);
webContainer->SetDocLoaderObserver(0);
mPrintPS->EndObservingDocument();
NS_RELEASE(mPrintPS);
NS_RELEASE(mPrintVM);
NS_RELEASE(mPrintSS);
NS_RELEASE(mPrintDC);
//
// The mIsPrinting flag is set when the ImageGroup observer is
// notified that images must be loaded as a result of the
// InitialReflow...
//
if(!mIsPrinting){
DocumentReadyForPrinting();
#ifdef DEBUG_dcone
printf("PRINT JOB ENDING, OBSERVER WAS NOT CALLED\n");
#endif
@ -680,13 +662,10 @@ PRBool isBusy;
#ifdef DEBUG_dcone
printf("PRINTING OBSERVER STARTED\n");
#endif
mIsPrinting = PR_TRUE;
mNumURLStarts = 0;
}
}
}
}
NS_RELEASE(factory);
}
return NS_OK;
}
@ -698,15 +677,15 @@ PRBool isBusy;
NS_IMETHODIMP
DocumentViewerImpl::PrintContent(nsIWebShell *aParent,nsIDeviceContext *aDContext)
{
nsIStyleSet *ss;
nsIPref *prefs;
nsIViewManager *vm;
PRInt32 width, height;
nsIView *view;
nsresult rv;
PRInt32 count,i;
nsIWebShell *childWebShell;
nsIContentViewer *viewer;
nsCOMPtr<nsIStyleSet> ss;
nsCOMPtr<nsIPref> prefs;
nsCOMPtr<nsIViewManager> vm;
PRInt32 width, height;
nsIView *view;
nsresult rv;
PRInt32 count,i;
nsIWebShell *childWebShell;
nsIContentViewer *viewer;
aParent->GetChildCount(count);
@ -715,32 +694,38 @@ nsIContentViewer *viewer;
aParent->ChildAt(i,childWebShell);
childWebShell->GetContentViewer(&viewer);
viewer->PrintContent(childWebShell,aDContext);
NS_RELEASE(childWebShell);
NS_RELEASE(viewer);
}
} else {
aDContext->BeginDocument();
aDContext->GetDeviceSurfaceDimensions(width, height);
nsIPresContext *cx;
rv = NS_NewPrintContext(&cx);
nsCOMPtr<nsIPresContext> cx;
rv = NS_NewPrintContext(getter_AddRefs(cx));
if (NS_FAILED(rv)) {
return rv;
}
mPresContext->GetPrefs(&prefs);
mPresContext->GetPrefs(getter_AddRefs(prefs));
cx->Init(aDContext, prefs);
nsCompatibility mode;
mPresContext->GetCompatibilityMode(&mode);
cx->SetCompatibilityMode(mode);
CreateStyleSet(mDocument, &ss);
CreateStyleSet(mDocument, getter_AddRefs(ss));
nsIPresShell *ps;
rv = NS_NewPresShell(&ps);
nsCOMPtr<nsIPresShell> ps;
rv = NS_NewPresShell(getter_AddRefs(ps));
if (NS_FAILED(rv)) {
return rv;
}
rv = nsComponentManager::CreateInstance(kViewManagerCID,nsnull,kIViewManagerIID,(void **)&vm);
rv = nsComponentManager::CreateInstance(kViewManagerCID,
nsnull,
kIViewManagerIID,
(void **)getter_AddRefs(vm));
if (NS_FAILED(rv)) {
return rv;
}
@ -780,66 +765,58 @@ nsIContentViewer *viewer;
aDContext->EndDocument();
ps->EndObservingDocument();
NS_RELEASE(ps);
NS_RELEASE(vm);
NS_RELEASE(ss);
NS_IF_RELEASE(prefs); // XXX why is the prefs null??
}
}
return NS_OK;
}
/** ---------------------------------------------------
* See documentation above in the DocumentViewerImpl class definition
* @update 07/09/99 dwc
*/
NS_IMETHODIMP
#ifdef NECKO
DocumentViewerImpl::OnStartURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsIContentViewer* aViewer)
#else
DocumentViewerImpl::OnStartURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, const char* aContentType,nsIContentViewer* aViewer)
#endif
void DocumentViewerImpl::Notify(nsIImageGroup *aImageGroup,
nsImageGroupNotification aNotificationType)
{
mNumURLStarts++;
return NS_OK;
}
//
// Image are being loaded... Set the flag to delay printing until
// all images are loaded.
//
if (aNotificationType == nsImageGroupNotification_kStartedLoading) {
mIsPrinting = PR_TRUE;
}
//
// All the images have been loaded, so the document is ready to print.
//
// However, at this point we are unable to release the resources that
// were allocated for printing... This is because ImgLib resources will
// be deleted and *this* is an ImgLib notification routine. So, fire an
// event to do the actual printing.
//
else if(aNotificationType == nsImageGroupNotification_kFinishedLoading) {
nsresult rv;
nsCOMPtr<nsIEventQueue> eventQ;
/** ---------------------------------------------------
* See documentation above in the DocumentViewerImpl class definition
* @update 07/09/99 dwc
*/
NS_IMETHODIMP
#ifdef NECKO
DocumentViewerImpl::OnEndURLLoad(nsIDocumentLoader* loader, nsIChannel* channel, nsresult aStatus)
#else
DocumentViewerImpl::OnEndURLLoad(nsIDocumentLoader* loader, nsIURI* aURL, PRInt32 aStatus)
#endif // NECKO
{
nsIContentViewerContainer *containerResult;
nsIWebShell *webContainer;
nsresult rv;
// Get the event queue of the current thread...
NS_WITH_SERVICE(nsIEventQueueService, eventQService, kEventQueueService, &rv);
if (NS_FAILED(rv)) return;
mNumURLStarts--;
rv = eventQService->GetThreadEventQueue(PR_CurrentThread(),
getter_AddRefs(eventQ));
if (NS_FAILED(rv)) return;
if((mIsPrinting==PR_TRUE) && (mNumURLStarts == 0)) {
rv = this->GetContainer(containerResult);
containerResult->QueryInterface(kIWebShellIID,(void**)&webContainer);
if(webContainer) {
PrintContent(webContainer,mPrintDC);
PRStatus status;
PLEvent *event = new PLEvent;
if (!event) return;
// printing is complete, clean up now
mIsPrinting = PR_FALSE;
webContainer->SetDocLoaderObserver(0);
//
// AddRef this because it is being placed in the PLEvent struct.
// It will be Released when DestroyPLEvent is called...
//
NS_ADDREF_THIS();
PL_InitEvent(event,
this,
(PLHandleEventProc) DocumentViewerImpl::HandlePLEvent,
(PLDestroyEventProc) DocumentViewerImpl::DestroyPLEvent);
mPrintPS->EndObservingDocument();
NS_RELEASE(mPrintPS);
NS_RELEASE(mPrintVM);
NS_RELEASE(mPrintSS);
NS_RELEASE(mPrintDC);
}
}
return NS_OK;
status = eventQ->PostEvent(event);
}
}
@ -994,3 +971,64 @@ DocumentViewerImpl::CreateDocumentViewerUsing(nsIPresContext* aPresContext,
return rv;
}
void PR_CALLBACK DocumentViewerImpl::HandlePLEvent(PLEvent* aEvent)
{
DocumentViewerImpl *viewer;
viewer = (DocumentViewerImpl*)PL_GetEventOwner(aEvent);
NS_ASSERTION(viewer, "The event owner is null.");
if (viewer) {
viewer->DocumentReadyForPrinting();
}
}
void PR_CALLBACK DocumentViewerImpl::DestroyPLEvent(PLEvent* aEvent)
{
DocumentViewerImpl *viewer;
viewer = (DocumentViewerImpl*)PL_GetEventOwner(aEvent);
NS_IF_RELEASE(viewer);
delete aEvent;
}
void DocumentViewerImpl::DocumentReadyForPrinting()
{
nsresult rv;
nsCOMPtr<nsIContentViewerContainer> containerResult;
nsCOMPtr<nsIWebShell> webContainer;
rv = this->GetContainer(*getter_AddRefs(containerResult));
webContainer = do_QueryInterface(containerResult);
if(webContainer) {
//
// Remove ourselves as an image group observer...
//
nsCOMPtr<nsIImageGroup> imageGroup;
mPrintPC->GetImageGroup(getter_AddRefs(imageGroup));
if (imageGroup) {
imageGroup->RemoveObserver(this);
}
//
// Send the document to the printer...
//
PrintContent(webContainer,mPrintDC);
// printing is complete, clean up now
mIsPrinting = PR_FALSE;
mPrintPS->EndObservingDocument();
NS_RELEASE(mPrintPS);
NS_RELEASE(mPrintVM);
NS_RELEASE(mPrintSS);
NS_RELEASE(mPrintDC);
}
}