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gecko-dev/layout/base/nsDocumentViewer.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#include "nslayout.h"
#include "nsCOMPtr.h"
#include "nsCRT.h"
#include "nsString.h"
#include "nsISupports.h"
#include "nsIContent.h"
#include "nsIContentViewerContainer.h"
#include "nsIDocumentViewer.h"
#include "nsIDOMWindowInternal.h"
#include "nsIImageGroup.h"
#include "nsIImageObserver.h"
#include "nsIDocument.h"
#include "nsIPresContext.h"
#include "nsIPresShell.h"
#include "nsIStyleSet.h"
#include "nsIStyleSheet.h"
#include "nsICSSStyleSheet.h"
#include "nsIStyleContext.h"
#include "nsIFrame.h"
#include "nsIScriptGlobalObjectOwner.h"
#include "nsIScriptGlobalObject.h"
#include "nsILinkHandler.h"
#include "nsIDOMDocument.h"
#include "nsISelectionListener.h"
#include "nsISelectionPrivate.h"
#include "nsIDOMHTMLDocument.h"
#include "nsIDOMHTMLElement.h"
#include "nsIDOMRange.h"
#include "nsContentCID.h"
#include "nsLayoutCID.h"
#include "nsHTMLParts.h"
#include "nsViewsCID.h"
#include "nsWidgetsCID.h"
#include "nsGfxCIID.h"
#include "nsIDeviceContext.h"
#include "nsIDeviceContextSpec.h"
#include "nsIDeviceContextSpecFactory.h"
#include "nsIViewManager.h"
#include "nsIView.h"
#include "nsIPref.h"
#include "nsIPageSequenceFrame.h"
#include "nsIURL.h"
#include "nsIWebShell.h"
#include "nsIContentViewerEdit.h"
#include "nsIContentViewerFile.h"
#include "nsIMarkupDocumentViewer.h"
#include "nsIInterfaceRequestor.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeNode.h"
#include "nsIDocShellTreeOwner.h"
#include "nsIDocShell.h"
#include "nsIFrameDebug.h"
#include "nsILayoutHistoryState.h"
#include "nsLayoutAtoms.h"
#include "nsIDOMHTMLFrameSetElement.h"
#include "nsIFrameManager.h"
#include "nsIParser.h"
#include "nsIPrintContext.h"
#include "nsIChromeRegistry.h"
#include "nsIServiceManager.h"
#include "nsIEventQueueService.h"
#include "nsIEventQueue.h"
#include "nsPIDOMWindow.h"
#include "nsIFocusController.h"
// Print Options
#include "nsIPrintOptions.h"
#include "nsGfxCIID.h"
#include "nsIServiceManager.h"
static NS_DEFINE_CID(kPrintOptionsCID, NS_PRINTOPTIONS_CID);
#include "nsHTMLAtoms.h" // XXX until atoms get factored into nsLayoutAtoms
// FrameSet
#include "nsINodeInfo.h"
#include "nsIDocument.h"
#include "nsHTMLAtoms.h"
#include "nsIHTMLContent.h"
#include "nsINameSpaceManager.h"
#include "nsIWebShell.h"
//focus
#include "nsIDOMEventReceiver.h"
#include "nsIDOMFocusListener.h"
#include "nsISelectionController.h"
#include "nsITransformMediator.h"
static NS_DEFINE_CID(kEventQueueService, NS_EVENTQUEUESERVICE_CID);
static NS_DEFINE_CID(kPresShellCID, NS_PRESSHELL_CID);
static NS_DEFINE_CID(kGalleyContextCID, NS_GALLEYCONTEXT_CID);
static NS_DEFINE_CID(kPrintContextCID, NS_PRINTCONTEXT_CID);
static NS_DEFINE_CID(kStyleSetCID, NS_STYLESET_CID);
#ifdef NS_DEBUG
#undef NOISY_VIEWER
#else
#undef NOISY_VIEWER
#endif
//#define SPOOL_TO_ONE_DOC 1
class DocumentViewerImpl;
// a small delegate class used to avoid circular references
#ifdef XP_MAC
#pragma mark ** nsDocViwerSelectionListener **
#endif
class nsDocViwerSelectionListener : public nsISelectionListener
{
public:
// nsISupports interface...
NS_DECL_ISUPPORTS
// nsISelectionListerner interface
NS_DECL_NSISELECTIONLISTENER
nsDocViwerSelectionListener()
: mDocViewer(NULL)
, mGotSelectionState(PR_FALSE)
, mSelectionWasCollapsed(PR_FALSE)
{
NS_INIT_REFCNT();
}
virtual ~nsDocViwerSelectionListener() {}
nsresult Init(DocumentViewerImpl *aDocViewer);
protected:
DocumentViewerImpl* mDocViewer;
PRPackedBool mGotSelectionState;
PRPackedBool mSelectionWasCollapsed;
};
/** editor Implementation of the FocusListener interface
*/
class nsDocViewerFocusListener : public nsIDOMFocusListener
{
public:
/** default constructor
*/
nsDocViewerFocusListener();
/** default destructor
*/
virtual ~nsDocViewerFocusListener();
/*interfaces for addref and release and queryinterface*/
NS_DECL_ISUPPORTS
/*BEGIN implementations of focus event handler interface*/
virtual nsresult HandleEvent(nsIDOMEvent* aEvent);
virtual nsresult Focus(nsIDOMEvent* aEvent);
virtual nsresult Blur(nsIDOMEvent* aEvent);
/*END implementations of focus event handler interface*/
nsresult Init(DocumentViewerImpl *aDocViewer);
private:
DocumentViewerImpl* mDocViewer;
};
#ifdef XP_MAC
#pragma mark ** DocumentViewerImpl **
#endif
class DocumentViewerImpl : public nsIDocumentViewer,
public nsIContentViewerEdit,
public nsIContentViewerFile,
public nsIMarkupDocumentViewer,
public nsIImageGroupObserver
{
friend class nsDocViwerSelectionListener;
public:
DocumentViewerImpl();
DocumentViewerImpl(nsIPresContext* aPresContext);
NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
// nsISupports interface...
NS_DECL_ISUPPORTS
// nsIContentViewer interface...
NS_IMETHOD Init(nsIWidget* aParentWidget,
nsIDeviceContext* aDeviceContext,
const nsRect& aBounds);
NS_IMETHOD BindToDocument(nsISupports* aDoc, const char* aCommand);
NS_IMETHOD SetContainer(nsISupports* aContainer);
NS_IMETHOD GetContainer(nsISupports** aContainerResult);
NS_IMETHOD LoadComplete(nsresult aStatus);
NS_IMETHOD Destroy(void);
NS_IMETHOD Stop(void);
NS_IMETHOD GetDOMDocument(nsIDOMDocument **aResult);
NS_IMETHOD SetDOMDocument(nsIDOMDocument *aDocument);
NS_IMETHOD GetBounds(nsRect& aResult);
NS_IMETHOD SetBounds(const nsRect& aBounds);
NS_IMETHOD Move(PRInt32 aX, PRInt32 aY);
NS_IMETHOD Show();
NS_IMETHOD Hide();
NS_IMETHOD SetEnableRendering(PRBool aOn);
NS_IMETHOD GetEnableRendering(PRBool* aResult);
// nsIDocumentViewer interface...
NS_IMETHOD SetUAStyleSheet(nsIStyleSheet* aUAStyleSheet);
NS_IMETHOD GetDocument(nsIDocument*& aResult);
NS_IMETHOD GetPresShell(nsIPresShell*& aResult);
NS_IMETHOD GetPresContext(nsIPresContext*& aResult);
NS_IMETHOD CreateDocumentViewerUsing(nsIPresContext* aPresContext,
nsIDocumentViewer*& aResult);
NS_IMETHOD SetTransformMediator(nsITransformMediator* aMediator);
// nsIContentViewerEdit
NS_DECL_NSICONTENTVIEWEREDIT
// nsIContentViewerFile
NS_DECL_NSICONTENTVIEWERFILE
// nsIMarkupDocumentViewer
NS_DECL_NSIMARKUPDOCUMENTVIEWER
typedef void (*CallChildFunc)(nsIMarkupDocumentViewer* aViewer,
void* aClosure);
nsresult CallChildren(CallChildFunc aFunc, void* aClosure);
// nsIImageGroupObserver interface
virtual void Notify(nsIImageGroup *aImageGroup,
nsImageGroupNotification aNotificationType);
protected:
virtual ~DocumentViewerImpl();
private:
void ForceRefresh(void);
nsresult CreateStyleSet(nsIDocument* aDocument, nsIStyleSet** aStyleSet);
nsresult MakeWindow(nsIWidget* aParentWidget,
const nsRect& aBounds);
nsresult GetDocumentSelection(nsISelection **aSelection, nsIPresShell * aPresShell = nsnull);
nsresult FindFrameSetWithIID(nsIContent * aParentContent, const nsIID& aIID);
PRBool IsThereASelection(nsIDOMWindowInternal * aDOMWin);
PRBool DoesContainFrameSet(nsIWebShell * aParent);
PRBool IsThereAnIFrameSelected(nsIWebShell* aWebShell,
nsIDOMWindowInternal * aDOMWin,
PRBool& aDoesContainFrameset);
PRBool IsWindowsInOurSubTree(nsIDOMWindowInternal * aDOMWindow);
// get the currently infocus frame for the document viewer
nsIDOMWindowInternal * FindFocusedDOMWindowInternal();
// get the DOM window for a given document viewer
nsIDOMWindow * GetDOMWindowForThisDV();
//
// The following three methods are used for printing...
//
void DocumentReadyForPrinting();
//nsresult PrintSelection(nsIDeviceContextSpec * aDevSpec);
nsresult GetSelectionDocument(nsIDeviceContextSpec * aDevSpec, nsIDocument ** aNewDoc);
PRUnichar* GetWebShellTitle(nsIWebShell * aWebShell);
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
// for owning pointers and raw COM interface pointers for weak
// (ie, non owning) references. If you add any members to this
// class, please make the ownership explicit (pinkerton, scc).
nsISupports* mContainer; // [WEAK] it owns me!
nsCOMPtr<nsIDeviceContext> mDeviceContext; // ??? can't hurt, but...
nsIView* mView; // [WEAK] cleaned up by view mgr
// the following seven items are explicitly in this order
// so they will be destroyed in the reverse order (pinkerton, scc)
nsCOMPtr<nsITransformMediator> mTransformMediator;
nsCOMPtr<nsIDocument> mDocument;
nsCOMPtr<nsIWidget> mWindow; // ??? should we really own it?
nsCOMPtr<nsIViewManager> mViewManager;
nsCOMPtr<nsIPresContext> mPresContext;
nsCOMPtr<nsIPresShell> mPresShell;
nsCOMPtr<nsIStyleSheet> mUAStyleSheet;
nsCOMPtr<nsISelectionListener> mSelectionListener;
nsCOMPtr<nsIDOMFocusListener> mFocusListener;
PRBool mEnableRendering;
PRInt16 mNumURLStarts;
PRBool mIsPrinting;
// printing members
nsIDeviceContext *mPrintDC;
nsIPresContext *mPrintPC;
nsIStyleSet *mPrintSS;
nsIPresShell *mPrintPS;
nsIViewManager *mPrintVM;
nsIView *mPrintView;
FILE *mFilePointer; // a file where information can go to when printing
nsCOMPtr<nsIPrintListener> mPrintListener; // An observer for printing...
// document management data
// these items are specific to markup documents (html and xml)
// may consider splitting these out into a subclass
PRBool mAllowPlugins;
/* character set member data */
nsString mDefaultCharacterSet;
nsString mHintCharset;
nsCharsetSource mHintCharsetSource;
nsString mForceCharacterSet;
};
// Class IDs
static NS_DEFINE_CID(kViewManagerCID, NS_VIEW_MANAGER_CID);
static NS_DEFINE_CID(kScrollingViewCID, NS_SCROLLING_VIEW_CID);
static NS_DEFINE_CID(kWidgetCID, NS_CHILD_CID);
static NS_DEFINE_CID(kViewCID, NS_VIEW_CID);
nsresult
NS_NewDocumentViewer(nsIDocumentViewer** aResult)
{
NS_PRECONDITION(aResult, "null OUT ptr");
if (!aResult) {
return NS_ERROR_NULL_POINTER;
}
DocumentViewerImpl* it = new DocumentViewerImpl();
if (nsnull == it) {
*aResult = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
return it->QueryInterface(NS_GET_IID(nsIDocumentViewer), (void**) aResult);
}
// Note: operator new zeros our memory
DocumentViewerImpl::DocumentViewerImpl()
{
NS_INIT_REFCNT();
mEnableRendering = PR_TRUE;
mFilePointer = nsnull;
mPrintListener = nsnull;
}
DocumentViewerImpl::DocumentViewerImpl(nsIPresContext* aPresContext)
: mPresContext(dont_QueryInterface(aPresContext))
{
NS_INIT_REFCNT();
mHintCharsetSource = kCharsetUninitialized;
mAllowPlugins = PR_TRUE;
mEnableRendering = PR_TRUE;
mFilePointer = nsnull;
}
// ISupports implementation...
NS_IMPL_ADDREF(DocumentViewerImpl)
NS_IMPL_RELEASE(DocumentViewerImpl)
nsresult
DocumentViewerImpl::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(NS_GET_IID(nsIContentViewer))) {
nsIContentViewer* tmp = this;
*aInstancePtr = (void*)tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIDocumentViewer))) {
nsIDocumentViewer* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIMarkupDocumentViewer))) {
nsIMarkupDocumentViewer* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIContentViewerFile))) {
nsIContentViewerFile* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIContentViewerEdit))) {
nsIContentViewerEdit* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsISupports))) {
nsIContentViewer* tmp1 = this;
nsISupports* tmp2 = tmp1;
*aInstancePtr = (void*) tmp2;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
DocumentViewerImpl::~DocumentViewerImpl()
{
nsresult rv;
if (mDocument) {
// Break global object circular reference on the document created
// in the DocViewer Init
nsCOMPtr<nsIScriptGlobalObject> globalObject;
mDocument->GetScriptGlobalObject(getter_AddRefs(globalObject));
if (globalObject) {
globalObject->SetNewDocument(nsnull);
}
// out of band cleanup of webshell
mDocument->SetScriptGlobalObject(nsnull);
if (mFocusListener) {
// get the DOM event receiver
nsCOMPtr<nsIDOMEventReceiver> erP;
rv = mDocument->QueryInterface(NS_GET_IID(nsIDOMEventReceiver), getter_AddRefs(erP));
if(NS_SUCCEEDED(rv) && erP)
erP->RemoveEventListenerByIID(mFocusListener, NS_GET_IID(nsIDOMFocusListener));
}
}
if (mPresContext) {
mPresContext->SetContainer(nsnull);
mPresContext->SetLinkHandler(nsnull);
}
if (mDeviceContext)
mDeviceContext->FlushFontCache();
if (mPresShell) {
// Break circular reference (or something)
mPresShell->EndObservingDocument();
nsCOMPtr<nsISelection> selection;
rv = GetDocumentSelection(getter_AddRefs(selection));
nsCOMPtr<nsISelectionPrivate> selPrivate(do_QueryInterface(selection));
if (NS_FAILED(rv) || !selPrivate)
return;
if (mSelectionListener)
selPrivate->RemoveSelectionListener(mSelectionListener);
}
}
/*
* This method is called by the Document Loader once a document has
* been created for a particular data stream... The content viewer
* must cache this document for later use when Init(...) is called.
*/
NS_IMETHODIMP
DocumentViewerImpl::BindToDocument(nsISupports *aDoc, const char *aCommand)
{
NS_PRECONDITION(!mDocument, "Viewer is already bound to a document!");
#ifdef NOISY_VIEWER
printf("DocumentViewerImpl::BindToDocument\n");
#endif
nsresult rv;
mDocument = do_QueryInterface(aDoc,&rv);
return rv;
}
NS_IMETHODIMP
DocumentViewerImpl::SetContainer(nsISupports* aContainer)
{
mContainer = aContainer;
if (mPresContext) {
mPresContext->SetContainer(aContainer);
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetContainer(nsISupports** aResult)
{
NS_ENSURE_ARG_POINTER(aResult);
*aResult = mContainer;
NS_IF_ADDREF(*aResult);
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::Init(nsIWidget* aParentWidget,
nsIDeviceContext* aDeviceContext,
const nsRect& aBounds)
{
nsresult rv;
if (!mDocument) {
return NS_ERROR_NULL_POINTER;
}
mDeviceContext = dont_QueryInterface(aDeviceContext);
PRBool makeCX = PR_FALSE;
if (!mPresContext) {
// Create presentation context
#if 1
mPresContext = do_CreateInstance(kGalleyContextCID,&rv);
#else // turn on print preview for debugging until print preview is fixed
rv = NS_NewPrintPreviewContext(getter_AddRefs(mPresContext));
#endif
if (NS_FAILED(rv)) return rv;
mPresContext->Init(aDeviceContext);
makeCX = PR_TRUE;
}
nsCOMPtr<nsIInterfaceRequestor> requestor(do_QueryInterface(mContainer));
if (requestor) {
nsCOMPtr<nsILinkHandler> linkHandler;
requestor->GetInterface(NS_GET_IID(nsILinkHandler),
getter_AddRefs(linkHandler));
mPresContext->SetContainer(mContainer);
mPresContext->SetLinkHandler(linkHandler);
// Set script-context-owner in the document
nsCOMPtr<nsIScriptGlobalObjectOwner> owner;
requestor->GetInterface(NS_GET_IID(nsIScriptGlobalObjectOwner),
getter_AddRefs(owner));
if (nsnull != owner) {
nsCOMPtr<nsIScriptGlobalObject> global;
rv = owner->GetScriptGlobalObject(getter_AddRefs(global));
if (NS_SUCCEEDED(rv) && (nsnull != global)) {
mDocument->SetScriptGlobalObject(global);
nsCOMPtr<nsIDOMDocument> domdoc(do_QueryInterface(mDocument));
if (nsnull != domdoc) {
global->SetNewDocument(domdoc);
}
}
}
}
// Create the ViewManager and Root View...
rv = MakeWindow(aParentWidget, aBounds);
if (NS_FAILED(rv)) return rv;
// Create the style set...
nsIStyleSet* styleSet;
rv = CreateStyleSet(mDocument, &styleSet);
if (NS_FAILED(rv)) return rv;
// Now make the shell for the document
rv = mDocument->CreateShell(mPresContext, mViewManager, styleSet,
getter_AddRefs(mPresShell));
NS_RELEASE(styleSet);
if (NS_FAILED(rv)) return rv;
mPresShell->BeginObservingDocument();
// Initialize our view manager
nsRect bounds;
mWindow->GetBounds(bounds);
nscoord width = bounds.width;
nscoord height = bounds.height;
float p2t;
mPresContext->GetPixelsToTwips(&p2t);
width = NSIntPixelsToTwips(width, p2t);
height = NSIntPixelsToTwips(height, p2t);
mViewManager->DisableRefresh();
mViewManager->SetWindowDimensions(width, height);
if (!makeCX) {
// Make shell an observer for next time
// XXX - we observe the docuement always, see above after preshell is created
// mPresShell->BeginObservingDocument();
//XXX I don't think this should be done *here*; and why paint nothing
//(which turns out to cause black flashes!)???
// Resize-reflow this time
mPresShell->InitialReflow(width, height);
// Now trigger a refresh
if (mEnableRendering) {
mViewManager->EnableRefresh(NS_VMREFRESH_IMMEDIATE);
}
}
// now register ourselves as a selection listener, so that we get called
// when the selection changes in the window
nsDocViwerSelectionListener *selectionListener;
NS_NEWXPCOM(selectionListener, nsDocViwerSelectionListener);
if (!selectionListener) return NS_ERROR_OUT_OF_MEMORY;
selectionListener->Init(this);
// this is the owning reference. The nsCOMPtr will take care of releasing
// our ref to the listener on destruction.
NS_ADDREF(selectionListener);
rv = selectionListener->QueryInterface(NS_GET_IID(nsISelectionListener), getter_AddRefs(mSelectionListener));
NS_RELEASE(selectionListener);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsISelection> selection;
rv = GetDocumentSelection(getter_AddRefs(selection));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsISelectionPrivate> selPrivate(do_QueryInterface(selection));
rv = selPrivate->AddSelectionListener(mSelectionListener);
if (NS_FAILED(rv)) return rv;
//focus listener
// now register ourselves as a focus listener, so that we get called
// when the focus changes in the window
nsDocViewerFocusListener *focusListener;
NS_NEWXPCOM(focusListener, nsDocViewerFocusListener);
if (!focusListener) return NS_ERROR_OUT_OF_MEMORY;
focusListener->Init(this);
// this is the owning reference. The nsCOMPtr will take care of releasing
// our ref to the listener on destruction.
NS_ADDREF(focusListener);
rv = focusListener->QueryInterface(NS_GET_IID(nsIDOMFocusListener), getter_AddRefs(mFocusListener));
NS_RELEASE(focusListener);
if (NS_FAILED(rv))
return rv;
if(mDocument)
{
// get the DOM event receiver
nsCOMPtr<nsIDOMEventReceiver> erP;
rv = mDocument->QueryInterface(NS_GET_IID(nsIDOMEventReceiver), getter_AddRefs(erP));
if(NS_FAILED(rv) || !erP)
return rv?rv:NS_ERROR_FAILURE;
rv = erP->AddEventListenerByIID(mFocusListener, NS_GET_IID(nsIDOMFocusListener));
NS_ASSERTION(NS_SUCCEEDED(rv), "failed to register focus listener");
}
return rv;
}
//
// LoadComplete(aStatus)
//
// aStatus - The status returned from loading the document.
//
// This method is called by the container when the document has been
// completely loaded.
//
NS_IMETHODIMP
DocumentViewerImpl::LoadComplete(nsresult aStatus)
{
nsresult rv = NS_OK;
nsCOMPtr<nsIScriptGlobalObject> global;
// First, get the script global object from the document...
if (mDocument) {
rv = mDocument->GetScriptGlobalObject(getter_AddRefs(global));
}
// Fail if no ScriptGlobalObject is available...
NS_ASSERTION(global, "nsIScriptGlobalObject not set for document!");
if (!global) return NS_ERROR_NULL_POINTER;
// Now, fire either an OnLoad or OnError event to the document...
if(NS_SUCCEEDED(aStatus)) {
nsEventStatus status = nsEventStatus_eIgnore;
nsEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_PAGE_LOAD;
rv = global->HandleDOMEvent(mPresContext, &event, nsnull,
NS_EVENT_FLAG_INIT, &status);
} else {
// XXX: Should fire error event to the document...
}
return rv;
}
NS_IMETHODIMP
DocumentViewerImpl::Destroy(void)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
DocumentViewerImpl::Stop(void)
{
if (mDocument) {
mDocument->StopDocumentLoad();
}
if (mPresContext) {
// stop everything but the chrome.
mPresContext->Stop(PR_FALSE);
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetDOMDocument(nsIDOMDocument **aResult)
{
return CallQueryInterface(mDocument.get(), aResult);
}
NS_IMETHODIMP
DocumentViewerImpl::SetDOMDocument(nsIDOMDocument *aDocument)
{
// Assumptions:
//
// 1) this document viewer has been initialized with a call to Init().
// 2) the stylesheets associated with the document have been added to the document.
// XXX Right now, this method assumes that the layout of the current document
// hasn't started yet. More cleanup will probably be necessary to make this
// method work for the case when layout *has* occurred for the current document.
// That work can happen when and if it is needed.
nsresult rv;
if (nsnull == aDocument)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIDocument> newDoc = do_QueryInterface(aDocument, &rv);
if (NS_FAILED(rv)) return rv;
// 0) Replace the old document with the new one
mDocument = newDoc;
// 1) Set the script global object on the new document
nsCOMPtr<nsIInterfaceRequestor> requestor(do_QueryInterface(mContainer));
if (requestor) {
nsCOMPtr<nsIScriptGlobalObjectOwner> owner;
requestor->GetInterface(NS_GET_IID(nsIScriptGlobalObjectOwner),
getter_AddRefs(owner));
if (nsnull != owner) {
nsCOMPtr<nsIScriptGlobalObject> global;
rv = owner->GetScriptGlobalObject(getter_AddRefs(global));
if (NS_SUCCEEDED(rv) && (nsnull != global)) {
mDocument->SetScriptGlobalObject(global);
global->SetNewDocument(aDocument);
}
}
}
// 2) Create a new style set for the document
nsCOMPtr<nsIStyleSet> styleSet;
rv = CreateStyleSet(mDocument, getter_AddRefs(styleSet));
if (NS_FAILED(rv)) return rv;
// 3) Replace the current pres shell with a new shell for the new document
mPresShell->EndObservingDocument();
mPresShell = nsnull;
rv = newDoc->CreateShell(mPresContext, mViewManager, styleSet,
getter_AddRefs(mPresShell));
if (NS_FAILED(rv)) return rv;
mPresShell->BeginObservingDocument();
// 4) Register the focus listener on the new document
if(mDocument)
{
nsCOMPtr<nsIDOMEventReceiver> erP;
rv = mDocument->QueryInterface(NS_GET_IID(nsIDOMEventReceiver), getter_AddRefs(erP));
if(NS_FAILED(rv) || !erP)
return rv ? rv : NS_ERROR_FAILURE;
rv = erP->AddEventListenerByIID(mFocusListener, NS_GET_IID(nsIDOMFocusListener));
NS_ASSERTION(NS_SUCCEEDED(rv), "failed to register focus listener");
}
return rv;
}
NS_IMETHODIMP
DocumentViewerImpl::SetUAStyleSheet(nsIStyleSheet* aUAStyleSheet)
{
mUAStyleSheet = dont_QueryInterface(aUAStyleSheet);
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetDocument(nsIDocument*& aResult)
{
aResult = mDocument;
NS_IF_ADDREF(aResult);
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetPresShell(nsIPresShell*& aResult)
{
aResult = mPresShell;
NS_IF_ADDREF(aResult);
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetPresContext(nsIPresContext*& aResult)
{
aResult = mPresContext;
NS_IF_ADDREF(aResult);
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetBounds(nsRect& aResult)
{
NS_PRECONDITION(mWindow, "null window");
if (mWindow) {
mWindow->GetBounds(aResult);
}
else {
aResult.SetRect(0, 0, 0, 0);
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::SetBounds(const nsRect& aBounds)
{
NS_PRECONDITION(mWindow, "null window");
if (mWindow) {
// Don't have the widget repaint. Layout will generate repaint requests
// during reflow
mWindow->Resize(aBounds.x, aBounds.y, aBounds.width, aBounds.height,
PR_FALSE);
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::Move(PRInt32 aX, PRInt32 aY)
{
NS_PRECONDITION(mWindow, "null window");
if (mWindow) {
mWindow->Move(aX, aY);
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::Show(void)
{
NS_PRECONDITION(mWindow, "null window");
if (mWindow) {
mWindow->Show(PR_TRUE);
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::Hide(void)
{
NS_PRECONDITION(mWindow, "null window");
if (mWindow) {
mWindow->Show(PR_FALSE);
}
return NS_OK;
}
nsresult
DocumentViewerImpl::FindFrameSetWithIID(nsIContent * aParentContent, const nsIID& aIID)
{
PRInt32 numChildren;
aParentContent->ChildCount(numChildren);
// do a breadth search across all siblings
PRInt32 inx;
for (inx=0;inx<numChildren;inx++) {
nsCOMPtr<nsIContent> child;
if (NS_SUCCEEDED(aParentContent->ChildAt(inx, *getter_AddRefs(child))) && child) {
nsCOMPtr<nsISupports> temp;
if (NS_SUCCEEDED(child->QueryInterface(aIID, (void**)getter_AddRefs(temp)))) {
return NS_OK;
}
}
}
return NS_ERROR_FAILURE;
}
//---------------------------------------------------------------
//---------------------------------------------------------------
//-- Debug helper routines
//---------------------------------------------------------------
//---------------------------------------------------------------
#if defined(DEBUG_rods) || defined(DEBUG_dcone)
/** ---------------------------------------------------
* Dumps Frames for Printing
*/
static void DumpFrames(FILE* out,
nsIPresContext* aPresContext,
nsIRenderingContext * aRendContext,
nsIFrame * aFrame,
PRInt32 aLevel)
{
nsIFrame * child;
aFrame->FirstChild(aPresContext, nsnull, &child);
while (child != nsnull) {
for (PRInt32 i=0;i<aLevel;i++) {
fprintf(out, " ");
}
nsAutoString tmp;
nsIFrameDebug* frameDebug;
if (NS_SUCCEEDED(child->QueryInterface(NS_GET_IID(nsIFrameDebug), (void**)&frameDebug))) {
frameDebug->GetFrameName(tmp);
}
fputs(tmp, out);
nsFrameState state;
child->GetFrameState(&state);
PRBool isSelected;
if (NS_SUCCEEDED(child->IsVisibleForPainting(aPresContext, *aRendContext, PR_TRUE, &isSelected))) {
fprintf(out, " %p %s", child, isSelected?"VIS":"UVS");
nsRect rect;
child->GetRect(rect);
fprintf(out, "[%d,%d,%d,%d] ", rect.x, rect.y, rect.width, rect.height);
nsIView * view;
child->GetView(aPresContext, &view);
fprintf(out, "v: %p ", view);
fprintf(out, "\n");
DumpFrames(out, aPresContext, aRendContext, child, aLevel+1);
child->GetNextSibling(&child);
}
}
}
/** ---------------------------------------------------
* Helper function needed for "DumpViews"
*/
static nsIPresShell*
GetPresShellFor(nsIDocShell* aDocShell)
{
nsIPresShell* shell = nsnull;
if (nsnull != aDocShell) {
nsIContentViewer* cv = nsnull;
aDocShell->GetContentViewer(&cv);
if (nsnull != cv) {
nsIDocumentViewer* docv = nsnull;
cv->QueryInterface(NS_GET_IID(nsIDocumentViewer), (void**) &docv);
if (nsnull != docv) {
nsIPresContext* cx;
docv->GetPresContext(cx);
if (nsnull != cx) {
cx->GetShell(&shell);
NS_RELEASE(cx);
}
NS_RELEASE(docv);
}
NS_RELEASE(cv);
}
}
return shell;
}
/** ---------------------------------------------------
* Dumps the Views from the DocShell
*/
static void
DumpViews(nsIDocShell* aDocShell, FILE* out)
{
if (nsnull != aDocShell) {
fprintf(out, "docshell=%p \n", aDocShell);
nsIPresShell* shell = GetPresShellFor(aDocShell);
if (nsnull != shell) {
nsCOMPtr<nsIViewManager> vm;
shell->GetViewManager(getter_AddRefs(vm));
if (vm) {
nsIView* root;
vm->GetRootView(root);
if (nsnull != root) {
root->List(out);
}
}
NS_RELEASE(shell);
}
else {
fputs("null pres shell\n", out);
}
// dump the views of the sub documents
PRInt32 i, n;
nsCOMPtr<nsIDocShellTreeNode> docShellAsNode(do_QueryInterface(aDocShell));
docShellAsNode->GetChildCount(&n);
for (i = 0; i < n; i++) {
nsCOMPtr<nsIDocShellTreeItem> child;
docShellAsNode->GetChildAt(i, getter_AddRefs(child));
nsCOMPtr<nsIDocShell> childAsShell(do_QueryInterface(child));
if (childAsShell) {
DumpViews(childAsShell, out);
}
}
}
}
/** ---------------------------------------------------
* Dumps the Views and Frames
*/
void DumpLayoutData(nsIPresContext* aPresContext,
nsIDeviceContext * aDC,
nsIFrame * aRootFrame,
nsIWebShell * aWebShell)
{
// Dump all the frames and view to a a file
FILE * fd = fopen("dump.txt", "w");
if (fd) {
fprintf(fd, "--------------- Frames ----------------\n");
nsCOMPtr<nsIRenderingContext> renderingContext;
aDC->CreateRenderingContext(*getter_AddRefs(renderingContext));
DumpFrames(fd, aPresContext, renderingContext, aRootFrame, 0);
fprintf(fd, "---------------------------------------\n\n");
fprintf(fd, "--------------- Views From Root Frame----------------\n");
nsIView * v;
aRootFrame->GetView(aPresContext, &v);
if (v) {
v->List(fd);
} else {
printf("View is null!\n");
}
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(aWebShell));
if (docShell) {
fprintf(fd, "--------------- All Views ----------------\n");
DumpViews(docShell, fd);
fprintf(fd, "---------------------------------------\n\n");
}
fclose(fd);
}
}
#endif
//---------------------------------------------------------------
//---------------------------------------------------------------
//-- End of debug helper routines
//---------------------------------------------------------------
//---------------------------------------------------------------
/** ---------------------------------------------------
* Giving a child frame it searches "up" the tree until it
* finds a "Page" frame.
*/
static nsIFrame * GetPageFrame(nsIFrame * aFrame)
{
nsIFrame * frame = aFrame;
while (frame != nsnull) {
nsCOMPtr<nsIAtom> type;
frame->GetFrameType(getter_AddRefs(type));
if (type.get() == nsLayoutAtoms::pageFrame) {
return frame;
}
frame->GetParent(&frame);
}
return nsnull;
}
/** ---------------------------------------------------
* Find by checking content's tag type
*/
static nsIFrame * FindFrameByType(nsIPresContext* aPresContext,
nsIFrame * aParentFrame,
nsIAtom * aType,
nsRect& aRect,
nsRect& aChildRect)
{
nsIFrame * child;
nsRect rect;
aParentFrame->GetRect(rect);
aRect.x += rect.x;
aRect.y += rect.y;
aParentFrame->FirstChild(aPresContext, nsnull, &child);
while (child != nsnull) {
nsCOMPtr<nsIContent> content;
child->GetContent(getter_AddRefs(content));
if (content) {
nsCOMPtr<nsIAtom> type;
content->GetTag(*getter_AddRefs(type));
if (type.get() == aType) {
nsRect r;
child->GetRect(r);
aChildRect.SetRect(aRect.x + r.x, aRect.y + r.y, r.width, r.height);
aRect.x -= rect.x;
aRect.y -= rect.y;
return child;
}
}
nsIFrame * fndFrame = FindFrameByType(aPresContext, child, aType, aRect, aChildRect);
if (fndFrame != nsnull) {
return fndFrame;
}
child->GetNextSibling(&child);
}
aRect.x -= rect.x;
aRect.y -= rect.y;
return nsnull;
}
/** ---------------------------------------------------
* Find by checking frames type
*/
static nsresult FindSelectionBounds(nsIPresContext* aPresContext,
nsIRenderingContext& aRC,
nsIFrame * aParentFrame,
nsRect& aRect,
nsIFrame *& aStartFrame,
nsRect& aStartRect,
nsIFrame *& aEndFrame,
nsRect& aEndRect)
{
nsIFrame * child;
aParentFrame->FirstChild(aPresContext, nsnull, &child);
nsRect rect;
aParentFrame->GetRect(rect);
aRect.x += rect.x;
aRect.y += rect.y;
while (child != nsnull) {
nsFrameState state;
child->GetFrameState(&state);
// only leaf frames have this bit flipped
// then check the hard way
PRBool isSelected = (state & NS_FRAME_SELECTED_CONTENT) == NS_FRAME_SELECTED_CONTENT;
if (isSelected) {
if (NS_FAILED(child->IsVisibleForPainting(aPresContext, aRC, PR_TRUE, &isSelected))) {
return NS_ERROR_FAILURE;
}
}
if (isSelected) {
nsRect r;
child->GetRect(r);
if (aStartFrame == nsnull) {
aStartFrame = child;
aStartRect.SetRect(aRect.x + r.x, aRect.y + r.y, r.width, r.height);
} else {
child->GetRect(r);
aEndFrame = child;
aEndRect.SetRect(aRect.x + r.x, aRect.y + r.y, r.width, r.height);
}
}
FindSelectionBounds(aPresContext, aRC, child, aRect, aStartFrame, aStartRect, aEndFrame, aEndRect);
child->GetNextSibling(&child);
}
aRect.x -= rect.x;
aRect.y -= rect.y;
return NS_OK;
}
/** ---------------------------------------------------
* This method finds the starting and ending page numbers
* of the selection and also returns rect for each where
* the x,y of the rect is relative to the very top of the
* frame tree (absolutely positioned)
*/
static nsresult GetPageRangeForSelection(nsIPresShell * aPresShell,
nsIPresContext* aPresContext,
nsIRenderingContext& aRC,
nsISelection* aSelection,
nsIPageSequenceFrame* aPageSeqFrame,
nsIFrame** aStartFrame,
PRInt32& aStartPageNum,
nsRect& aStartRect,
nsIFrame** aEndFrame,
PRInt32& aEndPageNum,
nsRect& aEndRect)
{
nsIFrame * seqFrame;
if (NS_FAILED(aPageSeqFrame->QueryInterface(NS_GET_IID(nsIFrame), (void **)&seqFrame))) {
return NS_ERROR_FAILURE;
}
nsIFrame * startFrame = nsnull;
nsIFrame * endFrame = nsnull;
nsRect rect;
seqFrame->GetRect(rect);
// start out with the sequence frame and search the entire frame tree
// capturing the the starting and ending child frames of the selection
// and their rects
FindSelectionBounds(aPresContext, aRC, seqFrame, rect, startFrame, aStartRect, endFrame, aEndRect);
#ifdef DEBUG_rods
printf("Start Frame: %p\n", startFrame);
printf("End Frame: %p\n", endFrame);
#endif
// initial the page numbers here
// in case we don't find and frames
aStartPageNum = -1;
aEndPageNum = -1;
nsIFrame * startPageFrame;
nsIFrame * endPageFrame;
// check to make sure we found a starting frame
if (startFrame != nsnull) {
// Now search up the tree to find what page the
// start/ending selections frames are on
//
// Check to see if start should be same as end if
// the end frame comes back null
if (endFrame == nsnull) {
// XXX the "GetPageFrame" step could be integrated into
// the FindSelectionBounds step, but walking up to find
// the parent of a child frame isn't expensive and it makes
// FindSelectionBounds a little easier to understand
startPageFrame = GetPageFrame(startFrame);
endPageFrame = startPageFrame;
aEndRect = aStartRect;
} else {
startPageFrame = GetPageFrame(startFrame);
endPageFrame = GetPageFrame(endFrame);
}
} else {
return NS_ERROR_FAILURE;
}
#ifdef DEBUG_rods
printf("Start Page: %p\n", startPageFrame);
printf("End Page: %p\n", endPageFrame);
// dump all the pages and their pointers
{
PRInt32 pageNum = 1;
nsIFrame * child;
seqFrame->FirstChild(aPresContext, nsnull, &child);
while (child != nsnull) {
printf("Page: %d - %p\n", pageNum, child);
pageNum++;
child->GetNextSibling(&child);
}
}
#endif
// Now that we have the page frames
// find out what the page numbers are for each frame
PRInt32 pageNum = 1;
nsIFrame * page;
seqFrame->FirstChild(aPresContext, nsnull, &page);
while (page != nsnull) {
if (page == startPageFrame) {
aStartPageNum = pageNum;
}
if (page == endPageFrame) {
aEndPageNum = pageNum;
}
pageNum++;
page->GetNextSibling(&page);
}
#ifdef DEBUG_rods
printf("Start Page No: %d\n", aStartPageNum);
printf("End Page No: %d\n", aEndPageNum);
#endif
*aStartFrame = startPageFrame;
*aEndFrame = endPageFrame;
return NS_OK;
}
//-------------------------------------------------------
PRBool
DocumentViewerImpl::DoesContainFrameSet(nsIWebShell * aParent)
{
// See if if the incoming doc is the root document
nsCOMPtr<nsIDocShellTreeItem> parentAsItem(do_QueryInterface(aParent));
nsCOMPtr<nsIDocShellTreeItem> parentsParentDoc;
parentAsItem->GetParent(getter_AddRefs(parentsParentDoc));
// When it is the top level document we need to check
// to see if it contains a frameset. If it does, then
// we only want to print the doc's children and not the document itself
// For anything else we always print all the children and the document
// for example, if the doc contains an IFRAME we eant to print the child
// document (the IFRAME) and then the rest of the document.
//
// XXX we really need to search the frame tree, and not the content
// but there is no way to distinguish between IFRAMEs and FRAMEs
// with the GetFrameType call.
// Bug 53459 has been files so we can eventually distinguish
// between IFRAME frames and FRAME frames
PRBool doesContainFrameSet = PR_FALSE;
// only check to see if there is a frameset if there is
// NO parent doc for this doc. meaning this parent is the root doc
//if (!parentsParentDoc) {
nsCOMPtr<nsIPresShell> shell;
mPresContext->GetShell(getter_AddRefs(shell));
if (shell) {
nsCOMPtr<nsIDocument> doc;
shell->GetDocument(getter_AddRefs(doc));
if (doc) {
nsCOMPtr<nsIContent> rootContent = getter_AddRefs(doc->GetRootContent());
if (rootContent) {
if (NS_SUCCEEDED(FindFrameSetWithIID(rootContent, NS_GET_IID(nsIDOMHTMLFrameSetElement)))) {
doesContainFrameSet = PR_TRUE;
}
}
}
}
//}
return doesContainFrameSet;
}
//-------------------------------------------------------
PRUnichar*
DocumentViewerImpl::GetWebShellTitle(nsIWebShell * aWebShell)
{
NS_ASSERTION(aWebShell != nsnull, "Must have a valid webshell!");
PRUnichar * docTitleStr = nsnull;
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(aWebShell));
if (docShell) {
nsCOMPtr<nsIPresShell> presShell;
docShell->GetPresShell(getter_AddRefs(presShell));
if (presShell) {
nsCOMPtr<nsIDocument> doc;
presShell->GetDocument(getter_AddRefs(doc));
if (doc) {
const nsString* docTitle = doc->GetDocumentTitle();
if (docTitle != nsnull) {
docTitleStr = docTitle->ToNewUnicode();
}
}
}
}
return docTitleStr;
}
//-------------------------------------------------------
nsresult
DocumentViewerImpl::PrintContent(nsIWebShell * aParent,
nsIDeviceContext * aDContext,
nsIDOMWindow * aDOMWin,
PRBool aIsSubDoc)
{
NS_ENSURE_ARG_POINTER(aParent);
NS_ENSURE_ARG_POINTER(aDContext);
nsCOMPtr<nsIStyleSet> ss;
nsCOMPtr<nsIViewManager> vm;
PRInt32 width, height;
nsresult rv;
PRInt32 i;
nsCOMPtr<nsIContentViewer> viewer;
nsCOMPtr<nsIDocShellTreeNode> parentAsNode(do_QueryInterface(aParent));
nsCOMPtr<nsIDOMWindowInternal> domWinIntl(do_QueryInterface(aDOMWin));
PRInt16 printFrameType = nsIPrintOptions::kSelectedFrame; // XXX later this default to kFramesAsIs
PRInt16 printHowEnable = nsIPrintOptions::kFrameEnableNone;
PRInt16 printRangeType = nsIPrintOptions::kRangeAllPages;
NS_WITH_SERVICE(nsIPrintOptions, printService, kPrintOptionsCID, &rv);
if (NS_SUCCEEDED(rv) && printService) {
printService->GetPrintFrameType(&printFrameType);
printService->GetHowToEnableFrameUI(&printHowEnable);
printService->GetPrintRange(&printRangeType);
}
PRBool doesContainFrameSet;
PRBool isIFrameSelection = IsThereAnIFrameSelected(aParent, domWinIntl, doesContainFrameSet);
// the root webshell is responsible for
// starting and ending the printing
#if SPOOL_TO_ONE_DOC // this will fix all frames being painted to the same spooling document
// (this part needs to be added)
if (aIsSubDoc == nsnull) {
PRUnichar *docTitleStr = GetWebShellTitle(aparent);
NS_ENSURE_SUCCESS( aDContext->BeginDocument(docTitleStr), NS_ERROR_FAILURE );
if(docTitleStr) {
nsMemory::Free(docTitleStr);
}
}
#endif
if (printFrameType == nsIPrintOptions::kFramesAsIs) {
// print frameset "as is " here and return
return NS_OK;
}
// print any child documents
// like frameset frames or iframes
PRInt32 childWebshellCount;
parentAsNode->GetChildCount(&childWebshellCount);
if(childWebshellCount > 0) {
for(i=0;i<childWebshellCount;i++) {
nsCOMPtr<nsIDocShellTreeItem> child;
parentAsNode->GetChildAt(i, getter_AddRefs(child));
nsCOMPtr<nsIDocShell> childAsShell(do_QueryInterface(child));
childAsShell->GetContentViewer(getter_AddRefs(viewer));
nsCOMPtr<nsIContentViewerFile> viewerFile(do_QueryInterface(viewer));
if (viewerFile) {
nsCOMPtr<nsIWebShell> childWebShell(do_QueryInterface(child));
NS_ENSURE_SUCCESS(viewerFile->PrintContent(childWebShell, aDContext, aDOMWin, PR_TRUE), NS_ERROR_FAILURE);
}
}
#if SPOOL_TO_ONE_DOC // this will fix all frames being painted to the same spooling document
// (this part needs to be added)
if (aIsSubDoc == nsnull) {
aDContext->EndDocument();
}
#endif
if (doesContainFrameSet || (!doesContainFrameSet && isIFrameSelection)) {
return NS_OK;
}
}
//-----------------------------------------------------
// Now check to see if we can print this WebShell
//-----------------------------------------------------
// Check to see if printing frames is not on
// and that we are printing a range or all pages
PRBool printAllPages = (printRangeType == nsIPrintOptions::kRangeAllPages ||
printRangeType == nsIPrintOptions::kRangeSpecifiedPageRange) &&
printHowEnable == nsIPrintOptions::kFrameEnableNone;
// See if we are printing the selected frame
PRBool printEachFrame = printFrameType == nsIPrintOptions::kEachFrameSep;
// This is for when the current root WebShell is a Frameset
// and we need to see if the webshell being passed in
// is the currently selected frame of the frameset
//
// The aDOMWin is the currently selected DOM window,
// which could be a frameset frame or a IFrame
PRBool thisWebShellIsSelected = PR_FALSE;
nsCOMPtr<nsIScriptGlobalObject> scriptObj(do_QueryInterface(aDOMWin));
if (scriptObj) {
nsCOMPtr<nsIDocShell> docShell;
scriptObj->GetDocShell(getter_AddRefs(docShell));
if (docShell) {
nsCOMPtr<nsIWebShell> webShellForParent(do_QueryInterface(docShell));
if (webShellForParent.get() == aParent) {
thisWebShellIsSelected = PR_TRUE;
}
}
}
// Check to make we can print the currently selected frame of a frameset
PRBool printSelectedFrame = thisWebShellIsSelected &&
printFrameType == nsIPrintOptions::kSelectedFrame;
// Now see if we can print the selected IFrame
// When IFrames are selected all the frame UI is turned off
// and theuser prints it by selected the "Selection" radiobutton
// which turns on kRangeSelection
PRBool printSelectedIFrame = PR_FALSE;
if (printHowEnable == nsIPrintOptions::kFrameEnableNone &&
printRangeType == nsIPrintOptions::kRangeSelection &&
thisWebShellIsSelected) {
printSelectedIFrame = PR_TRUE;
// check to see if we have a range selection,
// as oppose to a insert selection
// this means if the user just clicked on the IFrame then
// there will not be a selection so we want the entire page to print
//
// XXX this is sort of a hack right here to make the page
// not try to reposition itself when printing selection
if (!IsThereASelection(domWinIntl)) {
printRangeType = nsIPrintOptions::kRangeAllPages;
printService->SetPrintRange(printRangeType);
}
}
PRBool canPrintFrame = printAllPages || printEachFrame || printSelectedFrame || printSelectedIFrame;
if (!aIsSubDoc || (aIsSubDoc && canPrintFrame)) {
#ifndef SPOOL_TO_ONE_DOC // this will fix all frames being painted to the same spooling document
// (this part needs to be removed)
PRUnichar * docTitleStr = GetWebShellTitle(aParent);
NS_ENSURE_SUCCESS( aDContext->BeginDocument(docTitleStr), NS_ERROR_FAILURE );
if (docTitleStr != nsnull) {
nsMemory::Free(docTitleStr);
}
#endif
aDContext->GetDeviceSurfaceDimensions(width, height);
// XXX - Hack Alert
// OK, so ther eis a selection, we will print the entire selection
// on one page and then crop the page.
// This means you can never print any selection that is longer than one page
// put it keeps it from page breaking in the middle of your print of the selection
// (see also nsSimplePageSequence.cpp)
if (IsThereASelection(domWinIntl)) {
height = 0x0FFFFFFF;
}
nsCOMPtr<nsIPresContext> cx;
nsCOMPtr<nsIPrintContext> printcon(do_CreateInstance(kPrintContextCID,&rv));
if (NS_FAILED(rv)) {
return rv;
} else {
rv = printcon->QueryInterface(NS_GET_IID(nsIPresContext), getter_AddRefs(cx));
if (NS_FAILED(rv)) {
return rv;
}
}
cx->Init(aDContext);
CreateStyleSet(mDocument, getter_AddRefs(ss));
nsCOMPtr<nsIPresShell> ps(do_CreateInstance(kPresShellCID,&rv));
if (NS_FAILED(rv)) {
return rv;
}
rv = nsComponentManager::CreateInstance(kViewManagerCID,
nsnull,
NS_GET_IID(nsIViewManager),
(void **)getter_AddRefs(vm));
if (NS_FAILED(rv)) {
return rv;
}
rv = vm->Init(aDContext);
if (NS_FAILED(rv)) {
return rv;
}
nsRect tbounds = nsRect(0, 0, width, height);
// Create a child window of the parent that is our "root view/window"
nsIView* rootView;
rv = nsComponentManager::CreateInstance(kViewCID, nsnull, NS_GET_IID(nsIView), (void **)&rootView);
if (NS_FAILED(rv)) {
return rv;
}
rv = rootView->Init(vm, tbounds, nsnull);
if (NS_FAILED(rv)) {
return rv;
}
// Setup hierarchical relationship in view manager
vm->SetRootView(rootView);
ps->Init(mDocument, cx, vm, ss);
nsCompatibility mode;
mPresContext->GetCompatibilityMode(&mode);
cx->SetCompatibilityMode(mode);
cx->SetContainer(aParent);
// get the old history
nsCOMPtr<nsIPresShell> presShell;
nsCOMPtr<nsILayoutHistoryState> layoutState;
NS_ENSURE_SUCCESS(GetPresShell(*(getter_AddRefs(presShell))), NS_ERROR_FAILURE);
presShell->CaptureHistoryState(getter_AddRefs(layoutState),PR_TRUE);
ps->BeginObservingDocument();
//lay it out...
ps->InitialReflow(width, height);
// Transfer Selection Ranges to the new Print PresShell
nsCOMPtr<nsISelection> selection;
nsCOMPtr<nsISelection> selectionPS;
GetDocumentSelection(getter_AddRefs(selection));
if (selection) {
GetDocumentSelection(getter_AddRefs(selectionPS), ps);
if (selectionPS) {
PRInt32 cnt;
selection->GetRangeCount(&cnt);
PRInt32 inx;
for (inx=0;inx<cnt;inx++) {
nsCOMPtr<nsIDOMRange> range;
if (NS_SUCCEEDED(selection->GetRangeAt(inx, getter_AddRefs(range)))) {
selectionPS->AddRange(range);
}
}
}
}
// update the history from the old presentation shell
nsCOMPtr<nsIFrameManager> fm;
rv = ps->GetFrameManager(getter_AddRefs(fm));
if(NS_SUCCEEDED(rv) && fm) {
nsIFrame* root;
ps->GetRootFrame(&root);
fm->RestoreFrameState(cx, root, layoutState);
}
ps->EndObservingDocument();
// Ask the page sequence frame to print all the pages
nsIPageSequenceFrame* pageSequence;
//
ps->GetPageSequenceFrame(&pageSequence);
NS_ASSERTION(nsnull != pageSequence, "no page sequence frame");
if (nsnull != mFilePointer) {
// output the regression test
nsIFrameDebug* fdbg;
nsIFrame* root;
ps->GetRootFrame(&root);
if (NS_SUCCEEDED(root->QueryInterface(NS_GET_IID(nsIFrameDebug), (void**) &fdbg))) {
fdbg->DumpRegressionData(cx, mFilePointer, 0, PR_TRUE);
}
fclose(mFilePointer);
} else {
nsIFrame* rootFrame;
ps->GetRootFrame(&rootFrame);
#if defined(DEBUG_rods) || defined(DEBUG_dcone)
DumpLayoutData(cx, aDContext, rootFrame, aParent);
#endif
if (printService) {
// get the document title
const nsString* docTitle = mDocument->GetDocumentTitle();
if( docTitle != nsnull) {
PRUnichar * docStr = docTitle->ToNewUnicode();
printService->SetTitle(docStr);
nsMemory::Free(docStr);
}
// Get Document URL String
nsCOMPtr<nsIURI> url(getter_AddRefs(mDocument->GetDocumentURL()));
char * urlCStr;
url->GetSpec(&urlCStr);
nsAutoString urlStr;
urlStr.AssignWithConversion(urlCStr);
PRUnichar * urlUStr = urlStr.ToNewUnicode();
printService->SetDocURL(urlUStr);
nsMemory::Free(urlUStr);
nsMemory::Free(urlCStr);
if (nsIPrintOptions::kRangeSelection == printRangeType) {
cx->SetIsRenderingOnlySelection(PR_TRUE);
// temporarily creating rendering context
// which is needed to dinf the selection frames
nsCOMPtr<nsIRenderingContext> rc;
aDContext->CreateRenderingContext(*getter_AddRefs(rc));
// find the starting and ending page numbers
// via the selection
nsIFrame* startFrame;
nsIFrame* endFrame;
PRInt32 startPageNum;
PRInt32 endPageNum;
nsRect startRect;
nsRect endRect;
rv = GetPageRangeForSelection(ps, cx, *rc, selectionPS, pageSequence,
&startFrame, startPageNum, startRect,
&endFrame, endPageNum, endRect);
if (NS_SUCCEEDED(rv)) {
printService->SetStartPageRange(startPageNum);
printService->SetEndPageRange(endPageNum);
if (startPageNum == endPageNum) {
nsIFrame * seqFrame;
if (NS_FAILED(pageSequence->QueryInterface(NS_GET_IID(nsIFrame), (void **)&seqFrame))) {
return NS_ERROR_FAILURE;
}
nsRect rect(0,0,0,0);
nsRect areaRect;
nsIFrame * areaFrame = FindFrameByType(cx, startFrame, nsHTMLAtoms::body, rect, areaRect);
if (areaFrame) {
areaRect.y = areaRect.y - startRect.y;
areaFrame->SetRect(cx, areaRect);
}
}
}
}
nsIFrame * seqFrame;
if (NS_FAILED(pageSequence->QueryInterface(NS_GET_IID(nsIFrame), (void **)&seqFrame))) {
return NS_ERROR_FAILURE;
}
nsRect srect;
seqFrame->GetRect(srect);
nsRect r;
rootView->GetBounds(r);
r.height = srect.height;
rootView->SetBounds(r);
rootFrame->GetRect(r);
r.height = srect.height;
rootFrame->SetRect(cx, r);
pageSequence->Print(cx, printService, nsnull);
} else {
// not sure what to do here!
return NS_ERROR_FAILURE;
}
}
#ifndef SPOOL_TO_ONE_DOC // this will fix all frames being painted to the same spooling document
// (this part needs to be removed)
aDContext->EndDocument();
#endif
ps->EndObservingDocument();
}
if (printSelectedIFrame) {
printService->SetPrintRange(nsIPrintOptions::kRangeSelection);
}
#if SPOOL_TO_ONE_DOC // this will fix all frames being painted to the same spooling document
// (this part needs to be added)
// Only root webshells/docs get to start and end
// the printing of the entire document
if (aIsSubDoc == nsnull) {
aDContext->EndDocument();
}
#endif
return NS_OK;
}
void DocumentViewerImpl::Notify(nsIImageGroup *aImageGroup,
nsImageGroupNotification aNotificationType)
{
//
// 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;
// Get the event queue of the current thread...
NS_WITH_SERVICE(nsIEventQueueService, eventQService, kEventQueueService, &rv);
if (NS_FAILED(rv)) return;
rv = eventQService->GetThreadEventQueue(NS_CURRENT_THREAD,
getter_AddRefs(eventQ));
if (NS_FAILED(rv)) return;
PRStatus status;
PLEvent *event = new PLEvent;
if (!event) return;
//
// 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);
status = eventQ->PostEvent(event);
}
}
NS_IMETHODIMP
DocumentViewerImpl::SetEnableRendering(PRBool aOn)
{
mEnableRendering = aOn;
if (mViewManager) {
if (aOn) {
mViewManager->EnableRefresh(NS_VMREFRESH_IMMEDIATE);
nsIView* view;
mViewManager->GetRootView(view); // views are not refCounted
if (view) {
mViewManager->UpdateView(view, NS_VMREFRESH_IMMEDIATE);
}
}
else {
mViewManager->DisableRefresh();
}
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetEnableRendering(PRBool* aResult)
{
NS_PRECONDITION(nsnull != aResult, "null OUT ptr");
if (aResult) {
*aResult = mEnableRendering;
}
return NS_OK;
}
void
DocumentViewerImpl::ForceRefresh()
{
mWindow->Invalidate(PR_TRUE);
}
nsresult
DocumentViewerImpl::CreateStyleSet(nsIDocument* aDocument,
nsIStyleSet** aStyleSet)
{
// this should eventually get expanded to allow for creating
// different sets for different media
nsresult rv;
if (!mUAStyleSheet) {
NS_WARNING("unable to load UA style sheet");
}
rv = nsComponentManager::CreateInstance(kStyleSetCID,nsnull,NS_GET_IID(nsIStyleSet),(void**)aStyleSet);
if (NS_OK == rv) {
PRInt32 index = aDocument->GetNumberOfStyleSheets();
while (0 < index--) {
nsCOMPtr<nsIStyleSheet> sheet(getter_AddRefs(aDocument->GetStyleSheetAt(index)));
/*
* GetStyleSheetAt will return all style sheets in the document but
* we're only interested in the ones that are enabled.
*/
PRBool styleEnabled;
sheet->GetEnabled(styleEnabled);
if (styleEnabled) {
(*aStyleSet)->AddDocStyleSheet(sheet, aDocument);
}
}
NS_WITH_SERVICE(nsIChromeRegistry, chromeRegistry, "@mozilla.org/chrome/chrome-registry;1", &rv);
if (NS_SUCCEEDED(rv) && chromeRegistry) {
nsCOMPtr<nsISupportsArray> sheets;
chromeRegistry->GetBackstopSheets(getter_AddRefs(sheets));
if(sheets){
nsCOMPtr<nsICSSStyleSheet> sheet;
PRUint32 count;
sheets->Count(&count);
for(PRUint32 i=0; i<count; i++) {
sheets->GetElementAt(i, getter_AddRefs(sheet));
(*aStyleSet)->AppendBackstopStyleSheet(sheet);
}
}
// Now handle the user sheets.
nsCOMPtr<nsIDocShellTreeItem> docShell(do_QueryInterface(mContainer));
PRInt32 shellType;
docShell->GetItemType(&shellType);
PRBool isChrome = (shellType == nsIDocShellTreeItem::typeChrome);
sheets = nsnull;
chromeRegistry->GetUserSheets(isChrome, getter_AddRefs(sheets));
if(sheets){
nsCOMPtr<nsICSSStyleSheet> sheet;
PRUint32 count;
sheets->Count(&count);
for(PRUint32 i=0; i<count; i++) {
sheets->GetElementAt(i, getter_AddRefs(sheet));
// XXX For now, append as backstop until we figure out something
// better to do.
(*aStyleSet)->AppendBackstopStyleSheet(sheet);
}
}
}
if (mUAStyleSheet) {
(*aStyleSet)->AppendBackstopStyleSheet(mUAStyleSheet);
}
}
return NS_OK;
}
nsresult
DocumentViewerImpl::MakeWindow(nsIWidget* aParentWidget,
const nsRect& aBounds)
{
nsresult rv;
rv = nsComponentManager::CreateInstance(kViewManagerCID,
nsnull,
NS_GET_IID(nsIViewManager),
getter_AddRefs(mViewManager));
nsCOMPtr<nsIDeviceContext> dx;
mPresContext->GetDeviceContext(getter_AddRefs(dx));
nsRect tbounds = aBounds;
float p2t;
mPresContext->GetPixelsToTwips(&p2t);
tbounds *= p2t;
// Initialize the view manager with an offset. This allows the viewmanager
// to manage a coordinate space offset from (0,0)
if ((NS_OK != rv) || (NS_OK != mViewManager->Init(dx, tbounds.x, tbounds.y))) {
return rv;
}
// Reset the bounds offset so the root view is set to 0,0. The offset is
// specified in nsIViewManager::Init above.
// Besides, layout will reset the root view to (0,0) during reflow,
// so changing it to 0,0 eliminates placing
// the root view in the wrong place initially.
tbounds.x = 0;
tbounds.y = 0;
// Create a child window of the parent that is our "root view/window"
// Create a view
rv = nsComponentManager::CreateInstance(kViewCID,
nsnull,
NS_GET_IID(nsIView),
(void**)&mView);
if ((NS_OK != rv) || (NS_OK != mView->Init(mViewManager,
tbounds,
nsnull))) {
return rv;
}
rv = mView->CreateWidget(kWidgetCID, nsnull, aParentWidget->GetNativeData(NS_NATIVE_WIDGET));
if (rv != NS_OK)
return rv;
// Setup hierarchical relationship in view manager
mViewManager->SetRootView(mView);
mView->GetWidget(*getter_AddRefs(mWindow));
// This SetFocus is necessary so the Arrow Key and Page Key events
// go to the scrolled view as soon as the Window is created instead of going to
// the browser window (this enables keyboard scrolling of the document)
// mWindow->SetFocus();
return rv;
}
nsresult DocumentViewerImpl::GetDocumentSelection(nsISelection **aSelection, nsIPresShell * aPresShell)
{
if (aPresShell == nsnull) {
if (!mPresShell) {
return NS_ERROR_NOT_INITIALIZED;
}
aPresShell = mPresShell;
}
if (!aSelection) return NS_ERROR_NULL_POINTER;
if (!aPresShell) return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsISelectionController> selcon;
selcon = do_QueryInterface(aPresShell);
if (selcon)
return selcon->GetSelection(nsISelectionController::SELECTION_NORMAL, aSelection);
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
DocumentViewerImpl::CreateDocumentViewerUsing(nsIPresContext* aPresContext,
nsIDocumentViewer*& aResult)
{
if (!mDocument) {
// XXX better error
return NS_ERROR_NULL_POINTER;
}
if (nsnull == aPresContext) {
return NS_ERROR_NULL_POINTER;
}
// Create new viewer
DocumentViewerImpl* viewer = new DocumentViewerImpl(aPresContext);
if (nsnull == viewer) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(viewer);
// XXX make sure the ua style sheet is used (for now; need to be
// able to specify an alternate)
viewer->SetUAStyleSheet(mUAStyleSheet);
// Bind the new viewer to the old document
nsresult rv = viewer->BindToDocument(mDocument, "create");/* XXX verb? */
aResult = viewer;
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()
{
nsCOMPtr<nsIWebShell> webContainer;
webContainer = do_QueryInterface(mContainer);
if(webContainer) {
//
// Remove ourselves as an image group observer...
//
nsCOMPtr<nsIImageGroup> imageGroup;
mPrintPC->GetImageGroup(getter_AddRefs(imageGroup));
if (imageGroup) {
imageGroup->RemoveObserver(this);
}
// get the focused DOMWindow
nsCOMPtr<nsIDOMWindowInternal> curFocusDOMWin = getter_AddRefs(FindFocusedDOMWindowInternal());
nsCOMPtr<nsIDOMWindow> domWin(do_QueryInterface(curFocusDOMWin));
//
// Send the document to the printer...
//
nsresult rv = PrintContent(webContainer, mPrintDC, domWin, PR_FALSE);
NS_WARN_IF_FALSE(NS_SUCCEEDED(rv), "bad result from PrintConent");
// printing is complete, clean up now
mIsPrinting = PR_FALSE;
mPrintPS->EndObservingDocument();
if (mPrintListener)
mPrintListener->OnEndPrinting(NS_OK);
NS_RELEASE(mPrintPS);
NS_RELEASE(mPrintVM);
NS_RELEASE(mPrintSS);
NS_RELEASE(mPrintDC);
NS_RELEASE(mPrintPC);
}
}
NS_IMETHODIMP
DocumentViewerImpl::SetTransformMediator(nsITransformMediator* aMediator)
{
NS_ASSERTION(nsnull == mTransformMediator, "nsXMLDocument::SetTransformMediator(): \
Cannot set a second transform mediator\n");
mTransformMediator = aMediator;
return NS_OK;
}
#ifdef XP_MAC
#pragma mark -
#endif
/* ========================================================================================
* nsIContentViewerEdit
* ======================================================================================== */
NS_IMETHODIMP DocumentViewerImpl::Search()
{
NS_ASSERTION(0, "NOT IMPLEMENTED");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP DocumentViewerImpl::GetSearchable(PRBool *aSearchable)
{
NS_ASSERTION(0, "NOT IMPLEMENTED");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP DocumentViewerImpl::ClearSelection()
{
NS_ASSERTION(0, "NOT IMPLEMENTED");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP DocumentViewerImpl::SelectAll()
{
// XXX this is a temporary implementation copied from nsWebShell
// for now. I think nsDocument and friends should have some helper
// functions to make this easier.
nsCOMPtr<nsISelection> selection;
nsresult rv;
rv = GetDocumentSelection(getter_AddRefs(selection));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIDOMHTMLDocument> htmldoc = do_QueryInterface(mDocument);
nsCOMPtr<nsIDOMNode> bodyNode;
if (htmldoc)
{
nsCOMPtr<nsIDOMHTMLElement>bodyElement;
rv = htmldoc->GetBody(getter_AddRefs(bodyElement));
if (NS_FAILED(rv) || !bodyElement) return rv;
bodyNode = do_QueryInterface(bodyElement);
}
else if (mDocument)
{
nsCOMPtr<nsIContent> rootContent = getter_AddRefs(mDocument->GetRootContent());
bodyNode = do_QueryInterface(rootContent);
}
if (!bodyNode) return NS_ERROR_FAILURE;
rv = selection->RemoveAllRanges();
if (NS_FAILED(rv)) return rv;
static NS_DEFINE_CID(kCDOMRangeCID, NS_RANGE_CID);
nsCOMPtr<nsIDOMRange> range;
rv = nsComponentManager::CreateInstance(kCDOMRangeCID, nsnull,
NS_GET_IID(nsIDOMRange),
getter_AddRefs(range));
rv = range->SelectNodeContents(bodyNode);
if (NS_FAILED(rv)) return rv;
rv = selection->AddRange(range);
return rv;
}
NS_IMETHODIMP DocumentViewerImpl::CopySelection()
{
if (!mPresShell) return NS_ERROR_NOT_INITIALIZED;
return mPresShell->DoCopy();
}
NS_IMETHODIMP DocumentViewerImpl::GetCopyable(PRBool *aCopyable)
{
nsCOMPtr<nsISelection> selection;
nsresult rv;
rv = GetDocumentSelection(getter_AddRefs(selection));
if (NS_FAILED(rv)) return rv;
PRBool isCollapsed;
selection->GetIsCollapsed(&isCollapsed);
*aCopyable = !isCollapsed;
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::CutSelection()
{
NS_ASSERTION(0, "NOT IMPLEMENTED");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP DocumentViewerImpl::GetCutable(PRBool *aCutable)
{
*aCutable = PR_FALSE; // mm, will this ever be called for an editable document?
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::Paste()
{
NS_ASSERTION(0, "NOT IMPLEMENTED");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP DocumentViewerImpl::GetPasteable(PRBool *aPasteable)
{
*aPasteable = PR_FALSE;
return NS_OK;
}
#ifdef XP_MAC
#pragma mark -
#endif
/* ========================================================================================
* nsIContentViewerFile
* ======================================================================================== */
NS_IMETHODIMP
DocumentViewerImpl::Save()
{
NS_ASSERTION(0, "NOT IMPLEMENTED");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
DocumentViewerImpl::GetSaveable(PRBool *aSaveable)
{
NS_ASSERTION(0, "NOT IMPLEMENTED");
return NS_ERROR_NOT_IMPLEMENTED;
}
static NS_DEFINE_IID(kDeviceContextSpecFactoryCID, NS_DEVICE_CONTEXT_SPEC_FACTORY_CID);
nsresult DocumentViewerImpl::GetSelectionDocument(nsIDeviceContextSpec * aDevSpec, nsIDocument ** aNewDoc)
{
//NS_ENSURE_ARG_POINTER(*aDevSpec);
NS_ENSURE_ARG_POINTER(aNewDoc);
// create document
nsCOMPtr<nsIDocument> doc;
nsresult rv = NS_NewHTMLDocument(getter_AddRefs(doc));
if (NS_FAILED(rv)) { return rv; }
if (!doc) { return NS_ERROR_NULL_POINTER; }
nsCOMPtr<nsINodeInfoManager> nimgr;
rv = doc->GetNodeInfoManager(*getter_AddRefs(nimgr));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsINodeInfo> nodeInfo;
nimgr->GetNodeInfo(nsHTMLAtoms::html, nsnull, kNameSpaceID_None,
*getter_AddRefs(nodeInfo));
// create document content
nsCOMPtr<nsIHTMLContent> htmlElement;
nsCOMPtr<nsIHTMLContent> headElement;
nsCOMPtr<nsIHTMLContent> bodyElement;
// create the root
rv = NS_NewHTMLHtmlElement(getter_AddRefs(htmlElement), nodeInfo);
if (NS_FAILED(rv)) { return rv; }
if (!htmlElement) { return NS_ERROR_NULL_POINTER; }
// create the head
nimgr->GetNodeInfo(NS_ConvertASCIItoUCS2("head"), nsnull,
kNameSpaceID_None, *getter_AddRefs(nodeInfo));
rv = NS_NewHTMLHeadElement(getter_AddRefs(headElement), nodeInfo);
if (NS_FAILED(rv)) { return rv; }
if (!headElement) { return NS_ERROR_NULL_POINTER; }
headElement->SetDocument(doc, PR_FALSE, PR_TRUE);
// create the body
nimgr->GetNodeInfo(nsHTMLAtoms::body, nsnull, kNameSpaceID_None,
*getter_AddRefs(nodeInfo));
rv = NS_NewHTMLBodyElement(getter_AddRefs(bodyElement), nodeInfo);
if (NS_FAILED(rv)) { return rv; }
if (!bodyElement) { return NS_ERROR_NULL_POINTER; }
bodyElement->SetDocument(doc, PR_FALSE, PR_TRUE);
// put the head and body into the root
rv = htmlElement->AppendChildTo(headElement, PR_FALSE);
if (NS_FAILED(rv)) { return rv; }
rv = htmlElement->AppendChildTo(bodyElement, PR_FALSE);
if (NS_FAILED(rv)) { return rv; }
// load the document into the docshell
nsCOMPtr<nsIDOMDocument> domDoc = do_QueryInterface(doc);
if (!domDoc) { return NS_ERROR_NULL_POINTER; }
nsCOMPtr<nsIDOMElement> htmlDOMElement = do_QueryInterface(htmlElement);
if (!htmlDOMElement) { return NS_ERROR_NULL_POINTER; }
//nsCOMPtr<nsIContent> rootContent(do_QueryInterface(htmlElement));
//doc->SetRootContent(rootContent);
*aNewDoc = doc.get();
NS_ADDREF(*aNewDoc);
return rv;
}
PRBool
DocumentViewerImpl::IsThereAnIFrameSelected(nsIWebShell* aWebShell,
nsIDOMWindowInternal * aDOMWin,
PRBool& aDoesContainFrameset)
{
aDoesContainFrameset = DoesContainFrameSet(aWebShell);
PRBool iFrameIsSelected = PR_FALSE;
// First, check to see if we are a frameset
if (!aDoesContainFrameset) {
// Check to see if there is a currenlt focused frame
// if so, it means the selected frame is either the main webshell
// or an IFRAME
if (aDOMWin != nsnull) {
// Get the main webshell's DOMWin to see if it matches
// the frame that is selected
nsIDOMWindow* theDOMWindow = GetDOMWindowForThisDV();
if (aDOMWin != nsnull && theDOMWindow != aDOMWin) {
// we have a selected IFRAME
iFrameIsSelected = PR_TRUE;
}
NS_IF_RELEASE(theDOMWindow);
}
}
return iFrameIsSelected;
}
PRBool
DocumentViewerImpl::IsThereASelection(nsIDOMWindowInternal * aDOMWin)
{
nsCOMPtr<nsIPresShell> presShell;
if (aDOMWin != nsnull) {
nsCOMPtr<nsIScriptGlobalObject> scriptObj(do_QueryInterface(aDOMWin));
nsCOMPtr<nsIDocShell> docShell;
scriptObj->GetDocShell(getter_AddRefs(docShell));
docShell->GetPresShell(getter_AddRefs(presShell));
}
// check here to see if there is a range selection
// so we know whether to turn on the "Selection" radio button
nsCOMPtr<nsISelection> selection;
GetDocumentSelection(getter_AddRefs(selection), presShell);
if (selection) {
PRInt32 count;
selection->GetRangeCount(&count);
if (count == 1) {
nsCOMPtr<nsIDOMRange> range;
if (NS_SUCCEEDED(selection->GetRangeAt(0, getter_AddRefs(range)))) {
// check to make sure it isn't an insertion selection
PRBool isCollapsed;
selection->GetIsCollapsed(&isCollapsed);
return !isCollapsed;
}
}
}
return PR_FALSE;
}
/** ---------------------------------------------------
* See documentation above in the nsIContentViewerfile class definition
* @update 01/24/00 dwc
*/
NS_IMETHODIMP
DocumentViewerImpl::Print(PRBool aSilent,FILE *aFile, nsIPrintListener *aPrintListener)
{
nsCOMPtr<nsIWebShell> webContainer;
nsCOMPtr<nsIDeviceContextSpecFactory> factory;
PRInt32 width,height;
nsCOMPtr<nsIDOMWindowInternal> curFocusDOMWin = getter_AddRefs(FindFocusedDOMWindowInternal());
// Get the webshell for this documentviewer
webContainer = do_QueryInterface(mContainer);
// first check to see if there is a "regular" selection
PRBool isSelection = IsThereASelection(curFocusDOMWin);
// Get whether the doc contains a frameset
// Also, check to see if the currently focus webshell
// is a child of this webshell
PRBool doesContainFrameSet;
PRBool isIFrameSelection = IsThereAnIFrameSelected(webContainer, curFocusDOMWin, doesContainFrameSet);
// Setup print options for UI
nsresult rv = NS_ERROR_FAILURE;
NS_WITH_SERVICE(nsIPrintOptions, printService, kPrintOptionsCID, &rv);
if (NS_SUCCEEDED(rv) && printService) {
if (doesContainFrameSet) {
if (curFocusDOMWin) {
printService->SetHowToEnableFrameUI(nsIPrintOptions::kFrameEnableAll);
} else {
printService->SetHowToEnableFrameUI(nsIPrintOptions::kFrameEnableAsIsAndEach);
}
} else {
printService->SetHowToEnableFrameUI(nsIPrintOptions::kFrameEnableNone);
}
// Now determine how to set up the Frame print UI
printService->SetPrintOptions(nsIPrintOptions::kPrintOptionsEnableSelectionRB, isSelection || isIFrameSelection);
}
nsComponentManager::CreateInstance(kDeviceContextSpecFactoryCID,
nsnull,
NS_GET_IID(nsIDeviceContextSpecFactory),
(void **)getter_AddRefs(factory));
if (factory) {
#ifdef DEBUG_dcone
printf("PRINT JOB STARTING\n");
#endif
nsIDeviceContextSpec *devspec = nsnull;
nsCOMPtr<nsIDeviceContext> dx;
mPrintDC = nsnull;
mFilePointer = aFile;
factory->CreateDeviceContextSpec(mWindow, devspec, aSilent);
if (nsnull != devspec) {
mPresContext->GetDeviceContext(getter_AddRefs(dx));
rv = dx->GetDeviceContextFor(devspec, mPrintDC);
if (NS_SUCCEEDED(rv)) {
NS_RELEASE(devspec);
if(webContainer) {
// load the document and do the initial reflow on the entire document
nsCOMPtr<nsIPrintContext> printcon(do_CreateInstance(kPrintContextCID,&rv));
if (NS_FAILED(rv)) {
return rv;
} else {
rv = printcon->QueryInterface(NS_GET_IID(nsIPresContext), (void**)&mPrintPC);
if (NS_FAILED(rv)) {
return rv;
}
}
mPrintDC->GetDeviceSurfaceDimensions(width,height);
// XXX - Hack Alert
// OK, so ther eis a selection, we will print the entire selection
// on one page and then crop the page.
// This means you can never print any selection that is longer than one page
// put it keeps it from page breaking in the middle of your print of the selection
if (isSelection) {
height = 0x0FFFFFFF;
}
mPrintPC->Init(mPrintDC);
mPrintPC->SetContainer(webContainer);
CreateStyleSet(mDocument,&mPrintSS);
rv = nsComponentManager::CreateInstance(kPresShellCID, nsnull, NS_GET_IID(nsIPresShell),(void**)&mPrintPS);
if(NS_FAILED(rv)){
return rv;
}
rv = nsComponentManager::CreateInstance(kViewManagerCID, nsnull, NS_GET_IID(nsIViewManager),(void**)&mPrintVM);
if(NS_FAILED(rv)) {
return rv;
}
rv = mPrintVM->Init(mPrintDC);
if(NS_FAILED(rv)) {
return rv;
}
rv = nsComponentManager::CreateInstance(kViewCID, nsnull, NS_GET_IID(nsIView),(void**)&mPrintView);
if(NS_FAILED(rv)) {
return rv;
}
nsRect tbounds = nsRect(0,0,width,height);
rv = mPrintView->Init(mPrintVM,tbounds,nsnull);
if(NS_FAILED(rv)) {
return rv;
}
// 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
float a1,a2;
PRInt32 i1,i2;
printf("CRITICAL PRINTING INFORMATION\n");
printf("PRESSHELL(%x) PRESCONTEXT(%x)\nVIEWMANAGER(%x) VIEW(%x)\n",
mPrintPS, mPrintPC,mPrintDC,mPrintVM,mPrintView);
// DEVICE CONTEXT INFORMATION from PresContext
printf("DeviceContext of Presentation Context(%x)\n",dx);
dx->GetDevUnitsToTwips(a1);
dx->GetTwipsToDevUnits(a2);
printf(" DevToTwips = %f TwipToDev = %f\n",a1,a2);
dx->GetAppUnitsToDevUnits(a1);
dx->GetDevUnitsToAppUnits(a2);
printf(" AppUnitsToDev = %f DevUnitsToApp = %f\n",a1,a2);
dx->GetCanonicalPixelScale(a1);
printf(" GetCanonicalPixelScale = %f\n",a1);
dx->GetScrollBarDimensions(a1, a2);
printf(" ScrollBar x = %f y = %f\n",a1,a2);
dx->GetZoom(a1);
printf(" Zoom = %f\n",a1);
dx->GetDepth((PRUint32&)i1);
printf(" Depth = %d\n",i1);
dx->GetDeviceSurfaceDimensions(i1,i2);
printf(" DeviceDimension w = %d h = %d\n",i1,i2);
// DEVICE CONTEXT INFORMATION
printf("DeviceContext created for print(%x)\n",mPrintDC);
mPrintDC->GetDevUnitsToTwips(a1);
mPrintDC->GetTwipsToDevUnits(a2);
printf(" DevToTwips = %f TwipToDev = %f\n",a1,a2);
mPrintDC->GetAppUnitsToDevUnits(a1);
mPrintDC->GetDevUnitsToAppUnits(a2);
printf(" AppUnitsToDev = %f DevUnitsToApp = %f\n",a1,a2);
mPrintDC->GetCanonicalPixelScale(a1);
printf(" GetCanonicalPixelScale = %f\n",a1);
mPrintDC->GetScrollBarDimensions(a1, a2);
printf(" ScrollBar x = %f y = %f\n",a1,a2);
mPrintDC->GetZoom(a1);
printf(" Zoom = %f\n",a1);
mPrintDC->GetDepth((PRUint32&)i1);
printf(" Depth = %d\n",i1);
mPrintDC->GetDeviceSurfaceDimensions(i1,i2);
printf(" DeviceDimension w = %d h = %d\n",i1,i2);
#endif
// Print listener setup...
if (aPrintListener)
{
mPrintListener = aPrintListener;
mPrintListener->OnStartPrinting();
/* RICHIE mPrintListener->OnProgressPrinting(PRUint32 aProgress, PRUint32 aProgressMax); */
}
//
// 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
} else {
// use the observer mechanism to finish the printing
#ifdef DEBUG_dcone
printf("PRINTING OBSERVER STARTED\n");
#endif
}
}
}
}
else
{
return NS_ERROR_FAILURE;
}
}
return NS_OK;
}
NS_IMETHODIMP
DocumentViewerImpl::GetPrintable(PRBool *aPrintable)
{
NS_ENSURE_ARG_POINTER(aPrintable);
*aPrintable = PR_TRUE;
return NS_OK;
}
#ifdef XP_MAC
#pragma mark -
#endif
//*****************************************************************************
// nsIMarkupDocumentViewer
//*****************************************************************************
NS_IMETHODIMP DocumentViewerImpl::ScrollToNode(nsIDOMNode* aNode)
{
NS_ENSURE_ARG(aNode);
nsCOMPtr<nsIPresShell> presShell;
NS_ENSURE_SUCCESS(GetPresShell(*(getter_AddRefs(presShell))), NS_ERROR_FAILURE);
// Get the nsIContent interface, because that's what we need to
// get the primary frame
nsCOMPtr<nsIContent> content(do_QueryInterface(aNode));
NS_ENSURE_TRUE(content, NS_ERROR_FAILURE);
// Get the primary frame
nsIFrame* frame; // Remember Frames aren't ref-counted. They are in their
// own special little world.
NS_ENSURE_SUCCESS(presShell->GetPrimaryFrameFor(content, &frame),
NS_ERROR_FAILURE);
// tell the pres shell to scroll to the frame
NS_ENSURE_SUCCESS(presShell->ScrollFrameIntoView(frame,
NS_PRESSHELL_SCROLL_TOP,
NS_PRESSHELL_SCROLL_ANYWHERE),
NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetAllowPlugins(PRBool* aAllowPlugins)
{
NS_ENSURE_ARG_POINTER(aAllowPlugins);
*aAllowPlugins = mAllowPlugins;
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::SetAllowPlugins(PRBool aAllowPlugins)
{
mAllowPlugins = aAllowPlugins;
return NS_OK;
}
nsresult
DocumentViewerImpl::CallChildren(CallChildFunc aFunc, void* aClosure)
{
nsCOMPtr<nsIDocShellTreeNode> docShellNode(do_QueryInterface(mContainer));
if (docShellNode)
{
PRInt32 i;
PRInt32 n;
docShellNode->GetChildCount(&n);
for (i=0; i < n; i++)
{
nsCOMPtr<nsIDocShellTreeItem> child;
docShellNode->GetChildAt(i, getter_AddRefs(child));
nsCOMPtr<nsIDocShell> childAsShell(do_QueryInterface(child));
NS_ASSERTION(childAsShell, "null child in docshell");
if (childAsShell)
{
nsCOMPtr<nsIContentViewer> childCV;
childAsShell->GetContentViewer(getter_AddRefs(childCV));
if (childCV)
{
nsCOMPtr<nsIMarkupDocumentViewer> markupCV = do_QueryInterface(childCV);
if (markupCV) {
(*aFunc)(markupCV, aClosure);
}
}
}
}
}
return NS_OK;
}
struct TextZoomInfo
{
float mTextZoom;
};
static void
SetChildTextZoom(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
struct TextZoomInfo* textZoomInfo = (struct TextZoomInfo*) aClosure;
aChild->SetTextZoom(textZoomInfo->mTextZoom);
}
NS_IMETHODIMP DocumentViewerImpl::SetTextZoom(float aTextZoom)
{
if (mDeviceContext) {
mDeviceContext->SetTextZoom(aTextZoom);
if (mPresContext) {
mPresContext->RemapStyleAndReflow();
}
}
// now set the text zoom on all children of mContainer
struct TextZoomInfo textZoomInfo = { aTextZoom };
return CallChildren(SetChildTextZoom, &textZoomInfo);
}
NS_IMETHODIMP DocumentViewerImpl::GetTextZoom(float* aTextZoom)
{
NS_ENSURE_ARG_POINTER(aTextZoom);
if (mDeviceContext) {
return mDeviceContext->GetTextZoom(*aTextZoom);
}
*aTextZoom = 1.0;
return NS_OK;
}
// XXX: SEMANTIC CHANGE!
// returns a copy of the string. Caller is responsible for freeing result
// using Recycle(aDefaultCharacterSet)
NS_IMETHODIMP DocumentViewerImpl::GetDefaultCharacterSet(PRUnichar** aDefaultCharacterSet)
{
NS_ENSURE_ARG_POINTER(aDefaultCharacterSet);
NS_ENSURE_STATE(mContainer);
static PRUnichar *gDefCharset = nsnull; // XXX: memory leak!
if (0 == mDefaultCharacterSet.Length())
{
if ((nsnull == gDefCharset) || (nsnull == *gDefCharset))
{
nsCOMPtr<nsIWebShell> webShell;
webShell = do_QueryInterface(mContainer);
if (webShell)
{
nsCOMPtr<nsIPref> prefs(do_GetService(NS_PREF_CONTRACTID));
if(prefs)
prefs->GetLocalizedUnicharPref("intl.charset.default", &gDefCharset);
}
}
if ((nsnull == gDefCharset) || (nsnull == *gDefCharset))
mDefaultCharacterSet.AssignWithConversion("ISO-8859-1");
else
mDefaultCharacterSet.Assign(gDefCharset);
}
*aDefaultCharacterSet = mDefaultCharacterSet.ToNewUnicode();
return NS_OK;
}
static void
SetChildDefaultCharacterSet(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
aChild->SetDefaultCharacterSet((PRUnichar*) aClosure);
}
NS_IMETHODIMP DocumentViewerImpl::SetDefaultCharacterSet(const PRUnichar* aDefaultCharacterSet)
{
mDefaultCharacterSet = aDefaultCharacterSet; // this does a copy of aDefaultCharacterSet
// now set the default char set on all children of mContainer
return CallChildren(SetChildDefaultCharacterSet,
(void*) aDefaultCharacterSet);
}
// XXX: SEMANTIC CHANGE!
// returns a copy of the string. Caller is responsible for freeing result
// using Recycle(aForceCharacterSet)
NS_IMETHODIMP DocumentViewerImpl::GetForceCharacterSet(PRUnichar** aForceCharacterSet)
{
NS_ENSURE_ARG_POINTER(aForceCharacterSet);
nsAutoString emptyStr;
if (mForceCharacterSet.Equals(emptyStr)) {
*aForceCharacterSet = nsnull;
}
else {
*aForceCharacterSet = mForceCharacterSet.ToNewUnicode();
}
return NS_OK;
}
static void
SetChildForceCharacterSet(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
aChild->SetForceCharacterSet((PRUnichar*) aClosure);
}
NS_IMETHODIMP DocumentViewerImpl::SetForceCharacterSet(const PRUnichar* aForceCharacterSet)
{
mForceCharacterSet = aForceCharacterSet;
// now set the force char set on all children of mContainer
return CallChildren(SetChildForceCharacterSet, (void*) aForceCharacterSet);
}
// XXX: SEMANTIC CHANGE!
// returns a copy of the string. Caller is responsible for freeing result
// using Recycle(aHintCharacterSet)
NS_IMETHODIMP DocumentViewerImpl::GetHintCharacterSet(PRUnichar * *aHintCharacterSet)
{
NS_ENSURE_ARG_POINTER(aHintCharacterSet);
if(kCharsetUninitialized == mHintCharsetSource) {
*aHintCharacterSet = nsnull;
} else {
*aHintCharacterSet = mHintCharset.ToNewUnicode();
// this can't possibly be right. we can't set a value just because somebody got a related value!
//mHintCharsetSource = kCharsetUninitialized;
}
return NS_OK;
}
NS_IMETHODIMP DocumentViewerImpl::GetHintCharacterSetSource(PRInt32 *aHintCharacterSetSource)
{
NS_ENSURE_ARG_POINTER(aHintCharacterSetSource);
*aHintCharacterSetSource = mHintCharsetSource;
return NS_OK;
}
static void
SetChildHintCharacterSetSource(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
aChild->SetHintCharacterSetSource((PRInt32) aClosure);
}
NS_IMETHODIMP DocumentViewerImpl::SetHintCharacterSetSource(PRInt32 aHintCharacterSetSource)
{
mHintCharsetSource = (nsCharsetSource)aHintCharacterSetSource;
// now set the hint char set source on all children of mContainer
return CallChildren(SetChildHintCharacterSetSource,
(void*) aHintCharacterSetSource);
}
static void
SetChildHintCharacterSet(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
aChild->SetHintCharacterSet((PRUnichar*) aClosure);
}
NS_IMETHODIMP DocumentViewerImpl::SetHintCharacterSet(const PRUnichar* aHintCharacterSet)
{
mHintCharset = aHintCharacterSet;
// now set the hint char set on all children of mContainer
return CallChildren(SetChildHintCharacterSet, (void*) aHintCharacterSet);
}
NS_IMETHODIMP DocumentViewerImpl::SizeToContent()
{
nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mContainer));
NS_ENSURE_TRUE(docShellAsItem, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocShellTreeItem> docShellParent;
docShellAsItem->GetSameTypeParent(getter_AddRefs(docShellParent));
// It's only valid to access this from a top frame. Doesn't work from
// sub-frames.
NS_ENSURE_TRUE(!docShellParent, NS_ERROR_FAILURE);
nsCOMPtr<nsIPresShell> presShell;
GetPresShell(*getter_AddRefs(presShell));
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(presShell->ResizeReflow(NS_UNCONSTRAINEDSIZE,
NS_UNCONSTRAINEDSIZE), NS_ERROR_FAILURE);
nsCOMPtr<nsIPresContext> presContext;
GetPresContext(*getter_AddRefs(presContext));
NS_ENSURE_TRUE(presContext, NS_ERROR_FAILURE);
nsRect shellArea;
PRInt32 width, height;
float pixelScale;
// so how big is it?
presContext->GetVisibleArea(shellArea);
presContext->GetTwipsToPixels(&pixelScale);
width = PRInt32((float)shellArea.width*pixelScale);
height = PRInt32((float)shellArea.height*pixelScale);
nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
docShellAsItem->GetTreeOwner(getter_AddRefs(treeOwner));
NS_ENSURE_TRUE(treeOwner, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(treeOwner->SizeShellTo(docShellAsItem, width, height),
NS_ERROR_FAILURE);
return NS_OK;
}
#ifdef XP_MAC
#pragma mark -
#endif
NS_IMPL_ISUPPORTS(nsDocViwerSelectionListener, NS_GET_IID(nsISelectionListener));
nsresult nsDocViwerSelectionListener::Init(DocumentViewerImpl *aDocViewer)
{
mDocViewer = aDocViewer;
return NS_OK;
}
NS_IMETHODIMP nsDocViwerSelectionListener::NotifySelectionChanged(nsIDOMDocument *, nsISelection *, short)
{
NS_ASSERTION(mDocViewer, "Should have doc viewer!");
// get the selection state
nsCOMPtr<nsISelection> selection;
nsresult rv = mDocViewer->GetDocumentSelection(getter_AddRefs(selection));
if (NS_FAILED(rv)) return rv;
PRBool selectionCollapsed;
selection->GetIsCollapsed(&selectionCollapsed);
// we only call UpdateCommands when the selection changes from collapsed
// to non-collapsed or vice versa. We might need another update string
// for simple selection changes, but that would be expenseive.
if (!mGotSelectionState || mSelectionWasCollapsed != selectionCollapsed)
{
nsCOMPtr<nsIDocument> theDoc;
mDocViewer->GetDocument(*getter_AddRefs(theDoc));
if (!theDoc) return NS_ERROR_FAILURE;
nsCOMPtr<nsIScriptGlobalObject> scriptGlobalObject;
theDoc->GetScriptGlobalObject(getter_AddRefs(scriptGlobalObject));
nsCOMPtr<nsIDOMWindowInternal> domWindow = do_QueryInterface(scriptGlobalObject);
if (!domWindow) return NS_ERROR_FAILURE;
domWindow->UpdateCommands(NS_ConvertToString("select"));
mGotSelectionState = PR_TRUE;
mSelectionWasCollapsed = selectionCollapsed;
}
return NS_OK;
}
//nsDocViewerFocusListener
NS_IMPL_ISUPPORTS(nsDocViewerFocusListener, NS_GET_IID(nsIDOMFocusListener));
nsDocViewerFocusListener::nsDocViewerFocusListener()
:mDocViewer(nsnull)
{
NS_INIT_REFCNT();
}
nsDocViewerFocusListener::~nsDocViewerFocusListener(){}
nsresult
nsDocViewerFocusListener::HandleEvent(nsIDOMEvent* aEvent)
{
return NS_OK;
}
nsresult
nsDocViewerFocusListener::Focus(nsIDOMEvent* aEvent)
{
nsCOMPtr<nsIPresShell> shell;
if(!mDocViewer)
return NS_ERROR_FAILURE;
nsresult result = mDocViewer->GetPresShell(*getter_AddRefs(shell));//deref once cause it take a ptr ref
if(NS_FAILED(result) || !shell)
return result?result:NS_ERROR_FAILURE;
nsCOMPtr<nsISelectionController> selCon;
selCon = do_QueryInterface(shell);
PRInt16 selectionStatus;
selCon->GetDisplaySelection( &selectionStatus);
//if selection was nsISelectionController::SELECTION_OFF, do nothing
//otherwise re-enable it.
if(selectionStatus == nsISelectionController::SELECTION_DISABLED)
{
selCon->SetDisplaySelection(nsISelectionController::SELECTION_ON);
selCon->RepaintSelection(nsISelectionController::SELECTION_NORMAL);
}
return result;
}
nsresult
nsDocViewerFocusListener::Blur(nsIDOMEvent* aEvent)
{
nsCOMPtr<nsIPresShell> shell;
if(!mDocViewer)
return NS_ERROR_FAILURE;
nsresult result = mDocViewer->GetPresShell(*getter_AddRefs(shell));//deref once cause it take a ptr ref
if(NS_FAILED(result) || !shell)
return result?result:NS_ERROR_FAILURE;
nsCOMPtr<nsISelectionController> selCon;
selCon = do_QueryInterface(shell);
PRInt16 selectionStatus;
selCon->GetDisplaySelection(&selectionStatus);
//if selection was nsISelectionController::SELECTION_OFF, do nothing
//otherwise re-enable it.
if(selectionStatus == nsISelectionController::SELECTION_ON)
{
selCon->SetDisplaySelection(nsISelectionController::SELECTION_DISABLED);
selCon->RepaintSelection(nsISelectionController::SELECTION_NORMAL);
}
return result;
}
nsresult
nsDocViewerFocusListener::Init(DocumentViewerImpl *aDocViewer)
{
mDocViewer = aDocViewer;
return NS_OK;
}
PRBool
DocumentViewerImpl::IsWindowsInOurSubTree(nsIDOMWindowInternal * aDOMWindow)
{
PRBool found = PR_FALSE;
if(aDOMWindow) {
// now check to make sure it is in "our" tree of webshells
nsCOMPtr<nsIScriptGlobalObject> scriptObj(do_QueryInterface(aDOMWindow));
if (scriptObj) {
nsCOMPtr<nsIDocShell> docShell;
scriptObj->GetDocShell(getter_AddRefs(docShell));
if (docShell) {
nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(docShell));
if (docShellAsItem) {
// get this DocViewer webshell
nsCOMPtr<nsIWebShell> thisDVWebShell(do_QueryInterface(mContainer));
while (!found) {
nsCOMPtr<nsIDocShellTreeItem> docShellParent;
docShellAsItem->GetSameTypeParent(getter_AddRefs(docShellParent));
if (docShellParent) {
nsCOMPtr<nsIWebShell> parentWebshell(do_QueryInterface(docShellParent));
if (parentWebshell) {
if (parentWebshell.get() == thisDVWebShell.get()) {
found = PR_TRUE;
break;
}
}
} else {
break; // at top of tree
}
docShellAsItem = docShellParent;
} // while
}
} // docshell
} // scriptobj
} // domWindow
return found;
}
/** ---------------------------------------------------
* Get the Focused Frame for a documentviewer
*
*/
nsIDOMWindowInternal*
DocumentViewerImpl::FindFocusedDOMWindowInternal()
{
nsCOMPtr<nsIDOMWindowInternal> theDOMWin;
nsCOMPtr<nsIDocument> theDoc;
nsCOMPtr<nsIScriptGlobalObject> theSGO;
nsCOMPtr<nsIFocusController> focusController;
nsIDOMWindowInternal * domWin = nsnull;
this->GetDocument(*getter_AddRefs(theDoc));
if(theDoc){
theDoc->GetScriptGlobalObject(getter_AddRefs(theSGO));
if(theSGO){
nsCOMPtr<nsPIDOMWindow> theDOMWindow = do_QueryInterface(theSGO);
if(theDOMWindow){
theDOMWindow->GetRootFocusController(getter_AddRefs(focusController));
if(focusController){
focusController->GetFocusedWindow(getter_AddRefs(theDOMWin));
domWin = theDOMWin.get();
if(domWin != nsnull) {
if (IsWindowsInOurSubTree(domWin)){
NS_ADDREF(domWin);
} else {
domWin = nsnull;
}
}
}
}
}
}
return domWin;
}
/** ---------------------------------------------------
* Get DOM Window represented by the document viewer
*
*/
nsIDOMWindow*
DocumentViewerImpl::GetDOMWindowForThisDV()
{
nsCOMPtr<nsIDocument> theDoc;
nsCOMPtr<nsIScriptGlobalObject> theSGO;
nsCOMPtr<nsIFocusController> focusController;
nsIDOMWindow * domWin = nsnull;
this->GetDocument(*getter_AddRefs(theDoc));
if (theDoc){
theDoc->GetScriptGlobalObject(getter_AddRefs(theSGO));
if (theSGO){
nsCOMPtr<nsIDOMWindow> theDOMWindow = do_QueryInterface(theSGO);
if(theDOMWindow){
domWin = theDOMWindow.get();
NS_ADDREF(domWin);
}
}
}
return domWin;
}
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