Bommels05/Mozilla
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

added SetDocument implementation

Browse Source 
added Get/SetDocLoaderObserver
added base implementation for nsIDocShellContainer methods
started filling in GetVisibility
started nsIContentViewerContainer methods, very rough
added FireStartDocumentLoad, FireEndDocumentLoad
added DestroyChildren


git-svn-id: svn://10.0.0.236/trunk@53145 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
buster%netscape.com
1999-11-11 00:42:48 +00:00
parent b604bfeeca
commit 081fe363eb
1 changed files with 544 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

558
mozilla/docshell/base/nsDocShellBase.cpp
View File

@@ -20,14 +20,32 @@
* Travis Bogard <travis@netscape.com>
*/
#include "nsDocShellBase.h"
#include "nsIComponentManager.h"
#include "nsIContent.h"
#include "nsIDocument.h"
#include "nsIDOMDocument.h"
#include "nsIDOMElement.h"
#include "nsIDocumentViewer.h"
#include "nsIDeviceContext.h"
#include "nsCURILoader.h"
#include "nsLayoutCID.h"
#include "nsNeckoUtil.h"
#include "nsRect.h"
#ifdef XXX_NS_DEBUG // XXX: we'll need a logging facility for debugging
#define WEB_TRACE(_bit,_args) \
PR_BEGIN_MACRO \
if (WEB_LOG_TEST(gLogModule,_bit)) { \
PR_LogPrint _args; \
} \
PR_END_MACRO
#else
#define WEB_TRACE(_bit,_args)
#endif
#include "nsDocShellBase.h"
//*****************************************************************************
//*** nsDocShellBase: Object Management
@@ -119,13 +137,115 @@ NS_IMETHODIMP nsDocShellBase::GetCurrentURI(nsIURI** aURI)
}
// SetDocument is only meaningful for doc shells that support DOM documents. Not all do.
NS_IMETHODIMP nsDocShellBase::SetDocument(nsIDOMDocument* aDocument,
nsIPresContext* presContext)
NS_IMETHODIMP
nsDocShellBase::SetDocument(nsIDOMDocument *aDOMDoc, nsIDOMElement *aRootNode)
{
NS_WARN_IF_FALSE(PR_FALSE, "Subclasses should override this method!!!!");
return NS_ERROR_NOT_IMPLEMENTED;
// The tricky part is bypassing the normal load process and just putting a document into
// the webshell. This is particularly nasty, since webshells don't normally even know
// about their documents
// (1) Create a document viewer
nsCOMPtr<nsIContentViewer> documentViewer;
nsCOMPtr<nsIDocumentLoaderFactory> docFactory;
static NS_DEFINE_CID(kLayoutDocumentLoaderFactoryCID, NS_LAYOUT_DOCUMENT_LOADER_FACTORY_CID);
NS_ENSURE_SUCCESS(nsComponentManager::CreateInstance(kLayoutDocumentLoaderFactoryCID, nsnull,
nsIDocumentLoaderFactory::GetIID(),
(void**)getter_AddRefs(docFactory)),
NS_ERROR_FAILURE);
nsCOMPtr<nsIDocument> doc = do_QueryInterface(aDOMDoc);
if (!doc) { return NS_ERROR_NULL_POINTER; }
NS_ENSURE_SUCCESS(docFactory->CreateInstanceForDocument(this,
doc,
"view",
getter_AddRefs(documentViewer)),
NS_ERROR_FAILURE);
// (2) Feed the docshell to the content viewer
NS_ENSURE_SUCCESS(documentViewer->SetContainer(this), NS_ERROR_FAILURE);
// (3) Tell the content viewer container to embed the content viewer.
// (This step causes everything to be set up for an initial flow.)
NS_ENSURE_SUCCESS(Embed(documentViewer, "view", nsnull), NS_ERROR_FAILURE);
// XXX: It would be great to get rid of this dummy channel!
const nsAutoString uriString = "about:blank";
nsCOMPtr<nsIURI> uri;
NS_ENSURE_SUCCESS(NS_NewURI(getter_AddRefs(uri), uriString), NS_ERROR_FAILURE);
if (!uri) { return NS_ERROR_OUT_OF_MEMORY; }
nsCOMPtr<nsIChannel> dummyChannel;
NS_ENSURE_SUCCESS(NS_OpenURI(getter_AddRefs(dummyChannel), uri, nsnull), NS_ERROR_FAILURE);
// (4) fire start document load notification
NS_ENSURE_SUCCESS(doc->StartDocumentLoad("view", dummyChannel, nsnull, this, nsnull), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(FireStartDocumentLoad(mDocLoader, uri, "load"), NS_ERROR_FAILURE);
// (5) hook up the document and its content
nsCOMPtr<nsIContent> rootContent = do_QueryInterface(aRootNode);
if (!doc) { return NS_ERROR_OUT_OF_MEMORY; }
NS_ENSURE_SUCCESS(rootContent->SetDocument(doc, PR_FALSE), NS_ERROR_FAILURE);
doc->SetRootContent(rootContent);
// (6) reflow the document
//XXX: SetScrolling doesn't make any sense
//SetScrolling(-1, PR_FALSE);
PRInt32 i;
PRInt32 ns = doc->GetNumberOfShells();
for (i = 0; i < ns; i++)
{
nsCOMPtr<nsIPresShell> shell(dont_AddRef(doc->GetShellAt(i)));
if (shell)
{
// Make shell an observer for next time
NS_ENSURE_SUCCESS(shell->BeginObservingDocument(), NS_ERROR_FAILURE);
// Resize-reflow this time
nsCOMPtr<nsIDocumentViewer> docViewer = do_QueryInterface(documentViewer);
if (!docViewer) { return NS_ERROR_OUT_OF_MEMORY; }
nsCOMPtr<nsIPresContext> presContext;
NS_ENSURE_SUCCESS(docViewer->GetPresContext(*(getter_AddRefs(presContext))), NS_ERROR_FAILURE);
if (!presContext) { return NS_ERROR_OUT_OF_MEMORY; }
float p2t;
presContext->GetScaledPixelsToTwips(&p2t);
nsRect r;
NS_ENSURE_SUCCESS(GetPosition(&r.x, &r.y), NS_ERROR_FAILURE);;
NS_ENSURE_SUCCESS(GetSize(&r.width, &r.height), NS_ERROR_FAILURE);;
NS_ENSURE_SUCCESS(shell->InitialReflow(NSToCoordRound(r.width * p2t), NSToCoordRound(r.height * p2t)), NS_ERROR_FAILURE);
// Now trigger a refresh
nsCOMPtr<nsIViewManager> vm;
NS_ENSURE_SUCCESS(shell->GetViewManager(getter_AddRefs(vm)), NS_ERROR_FAILURE);
if (vm)
{
PRBool enabled;
documentViewer->GetEnableRendering(&enabled);
if (enabled) {
vm->EnableRefresh();
}
NS_ENSURE_SUCCESS(vm->SetWindowDimensions(NSToCoordRound(r.width * p2t),
NSToCoordRound(r.height * p2t)),
NS_ERROR_FAILURE);
}
}
}
// (7) fire end document load notification
nsresult rv = NS_OK;
nsCOMPtr<nsIDocumentLoaderObserver> dlObserver;
// XXX: this was just "this", and webshell container relied on getting a webshell
// through this interface. No one else uses it anywhere afaict
//if (!dlObserver) { return NS_ERROR_NO_INTERFACE; }
NS_ENSURE_SUCCESS(FireEndDocumentLoad(mDocLoader, dummyChannel, rv, dlObserver), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE); // test the resulting out-param separately
return NS_OK;
}
// caller is responsible for calling nsString::Recycle(*aName);
NS_IMETHODIMP nsDocShellBase::GetName(PRUnichar** aName)
{
@@ -285,6 +405,24 @@ NS_IMETHODIMP nsDocShellBase::SetZoom(float zoom)
return NS_OK;
}
NS_IMETHODIMP
nsDocShellBase::GetDocLoaderObserver(nsIDocumentLoaderObserver * *aDocLoaderObserver)
{
NS_ENSURE_ARG_POINTER(aDocLoaderObserver);
*aDocLoaderObserver = mDocLoaderObserver;
NS_IF_ADDREF(*aDocLoaderObserver);
return NS_OK;
}
NS_IMETHODIMP
nsDocShellBase::SetDocLoaderObserver(nsIDocumentLoaderObserver * aDocLoaderObserver)
{
// it's legal for aDocLoaderObserver to be null.
mDocLoaderObserver = aDocLoaderObserver;
return NS_OK;
}
//*****************************************************************************
// nsDocShellBase::nsIDocShellEdit
//*****************************************************************************
@@ -465,6 +603,87 @@ NS_IMETHODIMP nsDocShellBase::GetPrintable(PRBool* printable)
return NS_OK;
}
//*****************************************************************************
// nsDocShellBase::nsIDocShellContainer
//*****************************************************************************
NS_IMETHODIMP nsDocShellBase::GetChildCount(PRInt32 *aChildCount)
{
NS_ENSURE_ARG_POINTER(aChildCount);
*aChildCount = mChildren.Count();
return NS_OK;
}
NS_IMETHODIMP nsDocShellBase::AddChild(nsIDocShell *aChild)
{
NS_ENSURE_ARG_POINTER(aChild);
NS_ENSURE_SUCCESS(aChild->SetParent(this), NS_ERROR_FAILURE);
mChildren.AppendElement(aChild);
NS_ADDREF(aChild);
return NS_OK;
}
// XXX: tiny semantic change from webshell. aChild is only effected if it was actually a child of this docshell
NS_IMETHODIMP nsDocShellBase::RemoveChild(nsIDocShell *aChild)
{
NS_ENSURE_ARG_POINTER(aChild);
PRBool childRemoved = mChildren.RemoveElement(aChild);
if (PR_TRUE==childRemoved)
{
aChild->SetParent(nsnull);
NS_RELEASE(aChild);
}
return NS_OK;
}
/* readonly attribute nsIEnumerator childEnumerator; */
NS_IMETHODIMP nsDocShellBase::GetChildEnumerator(nsIEnumerator * *aChildEnumerator)
{
NS_ENSURE_ARG_POINTER(aChildEnumerator);
return NS_OK;
}
/* depth-first search for a child shell with aName */
NS_IMETHODIMP nsDocShellBase::FindChildWithName(const PRUnichar *aName, nsIDocShell **_retval)
{
NS_ENSURE_ARG_POINTER(aName);
NS_ENSURE_ARG_POINTER(_retval);
*_retval = nsnull; // if we don't find one, we return NS_OK and a null result
nsAutoString name(aName);
PRUnichar *childName;
PRInt32 i, n = mChildren.Count();
for (i = 0; i < n; i++)
{
nsIDocShell* child = (nsIDocShell*) mChildren.ElementAt(i); // doesn't addref the result
if (nsnull != child) {
child->GetName(&childName);
if (name.Equals(childName)) {
*_retval = child;
NS_ADDREF(child);
break;
}
// See if child contains the shell with the given name
nsCOMPtr<nsIDocShellContainer> childAsContainer = do_QueryInterface(child);
if (child)
{
NS_ENSURE_SUCCESS(childAsContainer->FindChildWithName(name.GetUnicode(), _retval), NS_ERROR_FAILURE);
}
if (_retval) { // found it
break;
}
}
}
return NS_OK;
}
//*****************************************************************************
// nsDocShellBase::nsIGenericWindow
//*****************************************************************************
@@ -763,18 +982,42 @@ NS_IMETHODIMP nsDocShellBase::SetParentNativeWindow(nativeWindow parentNativeWin
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP nsDocShellBase::GetVisibility(PRBool* visibility)
NS_IMETHODIMP nsDocShellBase::GetVisibility(PRBool* aVisibility)
{
NS_ENSURE_ARG_POINTER(visibility);
NS_ENSURE_ARG_POINTER(aVisibility);
if(!mCreated)
*visibility = mBaseInitInfo->visible;
else
{
//XXX Query underlying control
}
if(!mCreated) {
*aVisibility = mBaseInitInfo->visible;
}
else
{
// get the pres shell
nsCOMPtr<nsIPresShell> presShell;
NS_ENSURE_SUCCESS(GetPresShell(getter_AddRefs(presShell)), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
return NS_OK;
// get the view manager
nsCOMPtr<nsIViewManager> vm;
NS_ENSURE_SUCCESS(presShell->GetViewManager(getter_AddRefs(vm)), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(vm, NS_ERROR_FAILURE);
// get the root view
nsIView *rootView=nsnull; // views are not ref counted
NS_ENSURE_SUCCESS(vm->GetRootView(rootView), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(rootView, NS_ERROR_FAILURE);
// convert the view's visibility attribute to a bool
nsViewVisibility vis;
NS_ENSURE_TRUE(rootView->GetVisibility(vis), NS_ERROR_FAILURE);
if (nsViewVisibility_kHide==vis) {
*aVisibility = PR_FALSE;
}
else {
*aVisibility = PR_TRUE;
}
}
return NS_OK;
}
NS_IMETHODIMP nsDocShellBase::SetVisibility(PRBool visibility)
@@ -1060,6 +1303,106 @@ NS_IMETHODIMP nsDocShellBase::ScrollByPages(PRInt32 numPages)
return NS_OK;
}
//*****************************************************************************
// nsDocShellBase::nsIContentViewerContainer
//*****************************************************************************
NS_IMETHODIMP nsDocShellBase::QueryCapability(const nsIID &aIID, void** aResult)
{
NS_ENSURE_SUCCESS(PR_FALSE, NS_ERROR_NOT_IMPLEMENTED);
return NS_OK;
};
NS_IMETHODIMP nsDocShellBase::Embed(nsIContentViewer* aContentViewer,
const char * aCommand,
nsISupports * aExtraInfo)
{
NS_ENSURE_ARG_POINTER(aContentViewer);
// null aCommand is ok
// null aExtraInfo is ok
WEB_TRACE(WEB_TRACE_CALLS,
("nsWebShell::Embed: this=%p aDocViewer=%p aCommand=%s aExtraInfo=%p",
this, aContentViewer, aCommand ? aCommand : "", aExtraInfo));
nsRect bounds;
// (1) reset state, clean up any left-over data from previous embedding
mContentViewer = nsnull;
if (nsnull != mScriptContext) {
mScriptContext->GC();
}
// (2) set the new content viewer
mContentViewer = aContentViewer;
// XXX: comment from webshell code --
// check to see if we have a window to embed into --dwc0001
/* Note we also need to check for the presence of a native widget. If the
webshell is hidden before it's embedded, which can happen in an onload
handler, the native widget is destroyed before this code is run. This
appears to be mostly harmless except on Windows, where the subsequent
attempt to create a child window without a parent is met with disdain
by the OS. It's handy, then, that GetNativeData on Windows returns
null in this case. */
/* XXX native window
if(mWindow && mWindow->GetNativeData(NS_NATIVE_WIDGET))
{
mWindow->GetClientBounds(bounds);
bounds.x = bounds.y = 0;
rv = mContentViewer->Init(mWindow->GetNativeData(NS_NATIVE_WIDGET),
mDeviceContext,
mPrefs,
bounds,
mScrollPref);
// If the history state has been set by session history,
// set it on the pres shell now that we have a content
// viewer.
//XXX: history, should be removed
if (mContentViewer && mHistoryState) {
nsCOMPtr<nsIDocumentViewer> docv = do_QueryInterface(mContentViewer);
if (nsnull != docv) {
nsCOMPtr<nsIPresShell> shell;
rv = docv->GetPresShell(*getter_AddRefs(shell));
if (NS_SUCCEEDED(rv)) {
rv = shell->SetHistoryState((nsILayoutHistoryState*) mHistoryState);
}
}
}
if (NS_SUCCEEDED(rv)) {
mContentViewer->Show();
}
} else {
mContentViewer = nsnull;
}
*/
// Now that we have switched documents, forget all of our children
DestroyChildren();
return NS_OK;
}
NS_IMETHODIMP nsDocShellBase::GetContentViewer(nsIContentViewer** aResult)
{
NS_ENSURE_SUCCESS(PR_FALSE, NS_ERROR_NOT_IMPLEMENTED);
return NS_OK;
}
NS_IMETHODIMP nsDocShellBase::HandleUnknownContentType(nsIDocumentLoader* aLoader,
nsIChannel* channel,
const char *aContentType,
const char *aCommand)
{
NS_ENSURE_SUCCESS(PR_FALSE, NS_ERROR_NOT_IMPLEMENTED);
return NS_OK;
}
//*****************************************************************************
// nsDocShellBase: Helper Routines
//*****************************************************************************
@@ -1139,3 +1482,190 @@ void nsDocShellBase::SetCurrentURI(nsIURI* aUri)
mCurrentURI = aUri; //This assignment addrefs
}
NS_IMETHODIMP
nsDocShellBase::FireStartDocumentLoad(nsIDocumentLoader* aLoader,
nsIURI * aURL, //XXX: should be the channel?
const char * aCommand)
{
NS_ENSURE_ARG_POINTER(aLoader);
NS_ENSURE_ARG_POINTER(aURL);
NS_ENSURE_ARG_POINTER(aCommand);
nsCOMPtr<nsIDocumentViewer> docViewer;
if (mScriptGlobal && (aLoader == mDocLoader))
{
docViewer = do_QueryInterface(mContentViewer);
if (docViewer)
{
nsCOMPtr<nsIPresContext> presContext;
NS_ENSURE_SUCCESS(docViewer->GetPresContext(*(getter_AddRefs(presContext))), NS_ERROR_FAILURE);
if (presContext)
{
nsEventStatus status = nsEventStatus_eIgnore;
nsMouseEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_PAGE_UNLOAD;
NS_ENSURE_SUCCESS(mScriptGlobal->HandleDOMEvent(*presContext,
&event,
nsnull,
NS_EVENT_FLAG_INIT,
status),
NS_ERROR_FAILURE);
}
}
}
if (aLoader == mDocLoader)
{
nsCOMPtr<nsIDocumentLoaderObserver> dlObserver;
if (!mDocLoaderObserver && mParent)
{
/* If this is a frame (in which case it would have a parent && doesn't
* have a documentloaderObserver, get it from the rootWebShell
*/
nsCOMPtr<nsIDocShell> root;
NS_ENSURE_SUCCESS(GetRootDocShell(getter_AddRefs(root)), NS_ERROR_FAILURE);
if (root)
NS_ENSURE_SUCCESS(root->GetDocLoaderObserver(getter_AddRefs(dlObserver)), NS_ERROR_FAILURE);
}
else
{
dlObserver = do_QueryInterface(mDocLoaderObserver); // we need this to addref
}
/*
* Fire the OnStartDocumentLoad of the webshell observer
*/
/* XXX This code means "notify dlObserver only if we're the top level webshell.
I don't know why that would be, can't subdocument have doc loader observers?
*/
if (/*(nsnull != mContainer) && */(nsnull != dlObserver))
{
NS_ENSURE_SUCCESS(dlObserver->OnStartDocumentLoad(mDocLoader, aURL, aCommand),
NS_ERROR_FAILURE);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocShellBase::FireEndDocumentLoad(nsIDocumentLoader* aLoader,
nsIChannel * aChannel,
nsresult aStatus,
nsIDocumentLoaderObserver * aDocLoadObserver)
{
#ifdef MOZ_PERF_METRICS
RAPTOR_STOPWATCH_DEBUGTRACE(("Stop: nsWebShell::OnEndDocumentLoad(), this=%p\n", this));
NS_STOP_STOPWATCH(mTotalTime)
RAPTOR_STOPWATCH_TRACE(("Total (Layout + Page Load) Time (webshell=%p): ", this));
mTotalTime.Print();
RAPTOR_STOPWATCH_TRACE(("\n"));
#endif
NS_ENSURE_ARG_POINTER(aLoader);
NS_ENSURE_ARG_POINTER(aChannel);
// null aDocLoadObserver is legal
nsCOMPtr<nsIURI> aURL;
NS_ENSURE_SUCCESS(aChannel->GetURI(getter_AddRefs(aURL)), NS_ERROR_FAILURE);
if (aLoader == mDocLoader)
{
if (mScriptGlobal && mContentViewer)
{
nsCOMPtr<nsIDocumentViewer> docViewer;
docViewer = do_QueryInterface(mContentViewer);
if (docViewer)
{
nsCOMPtr<nsIPresContext> presContext;
NS_ENSURE_SUCCESS(docViewer->GetPresContext(*(getter_AddRefs(presContext))), NS_ERROR_FAILURE);
if (presContext)
{
nsEventStatus status = nsEventStatus_eIgnore;
nsMouseEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_PAGE_LOAD;
NS_ENSURE_SUCCESS(mScriptGlobal->HandleDOMEvent(*presContext,
&event,
nsnull,
NS_EVENT_FLAG_INIT,
status),
NS_ERROR_FAILURE);
}
}
}
// Fire the EndLoadURL of the web shell container
/* XXX: what replaces mContainer?
if (nsnull != aURL)
{
nsAutoString urlString;
char* spec;
rv = aURL->GetSpec(&spec);
if (NS_SUCCEEDED(rv))
{
urlString = spec;
if (nsnull != mContainer) {
rv = mContainer->EndLoadURL(this, urlString.GetUnicode(), 0);
}
nsCRT::free(spec);
}
}
*/
nsCOMPtr<nsIDocumentLoaderObserver> dlObserver;
if (!mDocLoaderObserver && mParent)
{
// If this is a frame (in which case it would have a parent && doesn't
// have a documentloaderObserver, get it from the rootWebShell
nsCOMPtr<nsIDocShell> root;
NS_ENSURE_SUCCESS(GetRootDocShell(getter_AddRefs(root)), NS_ERROR_FAILURE);
if (root)
NS_ENSURE_SUCCESS(root->GetDocLoaderObserver(getter_AddRefs(dlObserver)), NS_ERROR_FAILURE);
}
else
{
/* Take care of the Trailing slash situation */
/* XXX: session history stuff, should be taken care of external to the docshell
if (mSHist)
CheckForTrailingSlash(aURL);
*/
dlObserver = do_QueryInterface(mDocLoaderObserver); // we need this to addref
}
/*
* Fire the OnEndDocumentLoad of the DocLoaderobserver
*/
if (dlObserver && aURL) {
NS_ENSURE_SUCCESS(dlObserver->OnEndDocumentLoad(mDocLoader, aChannel, aStatus, aDocLoadObserver),
NS_ERROR_FAILURE);
}
}
return NS_OK;
}
NS_IMETHODIMP nsDocShellBase::DestroyChildren()
{
PRInt32 i, n = mChildren.Count();
for (i = 0; i < n; i++)
{
nsIDocShell* shell = (nsIDocShell*) mChildren.ElementAt(i);
NS_WARN_IF_FALSE(shell, "docshell has null child");
if (shell)
{
shell->SetParent(nsnull);
// XXX: will shells have a separate Destroy? See webshell::Destroy for what it does
//shell->Destroy();
NS_RELEASE(shell);
}
}
mChildren.Clear();
return NS_OK;
}