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e70372a5cf
gecko-dev/layout/generic/nsFrameFrame.cpp
kipp%netscape.com e70372a5cf Tweaked to handle unconstrained situations better
1999-03-22 20:47:21 +00:00

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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 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsCOMPtr.h"
#include "nsLeafFrame.h"
#include "nsHTMLContainerFrame.h"
#include "nsIHTMLContent.h"
#include "nsIWebShell.h"
#include "nsIPresContext.h"
#include "nsIPresShell.h"
#include "nsHTMLIIDs.h"
#include "nsIComponentManager.h"
#include "nsIStreamListener.h"
#include "nsIURL.h"
#include "nsIDocument.h"
#include "nsIView.h"
#include "nsIViewManager.h"
#include "nsWidgetsCID.h"
#include "nsViewsCID.h"
#include "nsHTMLAtoms.h"
#include "nsIScrollableView.h"
#include "nsStyleCoord.h"
#include "nsIStyleContext.h"
#include "nsStyleConsts.h"
#include "nsIDocumentLoader.h"
#include "nsIPref.h"
#include "nsFrameSetFrame.h"
#include "nsIDOMHTMLFrameElement.h"
#include "nsIDOMHTMLIFrameElement.h"
#include "nsGenericHTMLElement.h"
class nsHTMLFrame;
static NS_DEFINE_IID(kIWebShellContainerIID, NS_IWEB_SHELL_CONTAINER_IID);
static NS_DEFINE_IID(kIStreamObserverIID, NS_ISTREAMOBSERVER_IID);
static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
static NS_DEFINE_IID(kWebShellCID, NS_WEB_SHELL_CID);
static NS_DEFINE_IID(kIViewIID, NS_IVIEW_IID);
static NS_DEFINE_IID(kCViewCID, NS_VIEW_CID);
static NS_DEFINE_IID(kCChildCID, NS_CHILD_CID);
static NS_DEFINE_IID(kIDOMHTMLFrameElementIID, NS_IDOMHTMLFRAMEELEMENT_IID);
static NS_DEFINE_IID(kIDOMHTMLIFrameElementIID, NS_IDOMHTMLIFRAMEELEMENT_IID);
/*******************************************************************************
* TempObserver XXX temporary until doc manager/loader is in place
******************************************************************************/
class TempObserver : public nsIStreamObserver
{
public:
TempObserver() { NS_INIT_REFCNT(); }
virtual ~TempObserver() {}
// nsISupports
NS_DECL_ISUPPORTS
// nsIStreamObserver
NS_IMETHOD OnStartBinding(nsIURL* aURL, const char *aContentType);
NS_IMETHOD OnProgress(nsIURL* aURL, PRUint32 aProgress, PRUint32 aProgressMax);
NS_IMETHOD OnStatus(nsIURL* aURL, const PRUnichar* aMsg);
NS_IMETHOD OnStopBinding(nsIURL* aURL, nsresult status, const PRUnichar* aMsg);
protected:
nsString mURL;
nsString mOverURL;
nsString mOverTarget;
};
/*******************************************************************************
* FrameLoadingInfo
******************************************************************************/
class FrameLoadingInfo : public nsISupports
{
public:
FrameLoadingInfo(const nsSize& aSize);
// nsISupports interface...
NS_DECL_ISUPPORTS
protected:
virtual ~FrameLoadingInfo() {}
public:
nsSize mFrameSize;
};
/*******************************************************************************
* nsHTMLFrameOuterFrame
******************************************************************************/
class nsHTMLFrameOuterFrame : public nsHTMLContainerFrame {
public:
nsHTMLFrameOuterFrame();
NS_IMETHOD GetFrameName(nsString& aResult) const;
NS_IMETHOD Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer);
NS_IMETHOD Reflow(nsIPresContext& aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
NS_IMETHOD AttributeChanged(nsIPresContext* aPresContext,
nsIContent* aChild,
nsIAtom* aAttribute,
PRInt32 aHint);
NS_IMETHOD VerifyTree() const;
PRBool HasBorder();
PRBool IsInline();
protected:
virtual ~nsHTMLFrameOuterFrame();
virtual void GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredSize);
virtual PRIntn GetSkipSides() const;
PRBool *mIsInline;
};
/*******************************************************************************
* nsHTMLFrameInnerFrame
******************************************************************************/
class nsHTMLFrameInnerFrame : public nsLeafFrame {
public:
nsHTMLFrameInnerFrame();
NS_IMETHOD GetFrameName(nsString& aResult) const;
/**
* @see nsIFrame::Paint
*/
NS_IMETHOD Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer);
/**
* @see nsIFrame::Reflow
*/
NS_IMETHOD Reflow(nsIPresContext& aCX,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
NS_IMETHOD MoveTo(nscoord aX, nscoord aY);
NS_IMETHOD SizeTo(nscoord aWidth, nscoord aHeight);
NS_IMETHOD GetParentContent(nsIContent*& aContent);
PRBool GetURL(nsIContent* aContent, nsString& aResult);
PRBool GetName(nsIContent* aContent, nsString& aResult);
PRInt32 GetScrolling(nsIContent* aContent, PRBool aStandardMode);
nsFrameborder GetFrameBorder(PRBool aStandardMode);
PRInt32 GetMarginWidth(nsIPresContext* aPresContext, nsIContent* aContent);
PRInt32 GetMarginHeight(nsIPresContext* aPresContext, nsIContent* aContent);
nsresult ReloadURL();
protected:
nsresult CreateWebShell(nsIPresContext& aPresContext, const nsSize& aSize);
virtual ~nsHTMLFrameInnerFrame();
virtual void GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredSize);
nsIWebShell* mWebShell;
PRBool mCreatingViewer;
// XXX fix these
TempObserver* mTempObserver;
};
/*******************************************************************************
* nsHTMLFrameOuterFrame
******************************************************************************/
nsHTMLFrameOuterFrame::nsHTMLFrameOuterFrame()
: nsHTMLContainerFrame()
{
mIsInline = nsnull;
}
nsHTMLFrameOuterFrame::~nsHTMLFrameOuterFrame()
{
//printf("nsHTMLFrameOuterFrame destructor %X \n", this);
if (mIsInline) {
delete mIsInline;
}
}
PRBool
nsHTMLFrameOuterFrame::HasBorder()
{
if (IsInline()) {
nsIFrame* firstChild = mFrames.FirstChild();
if (nsnull != firstChild) {
if (eFrameborder_No != ((nsHTMLFrameInnerFrame*)firstChild)->GetFrameBorder(eCompatibility_Standard)) {
return PR_TRUE;
}
}
}
return PR_FALSE;
}
PRIntn
nsHTMLFrameOuterFrame::GetSkipSides() const
{
return 0;
}
void
nsHTMLFrameOuterFrame::GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredSize)
{
// <frame> processing does not use this routine, only <iframe>
float p2t;
aPresContext->GetScaledPixelsToTwips(&p2t);
// XXX this needs to be changed from (200,200) to a better default
// for inline frames
if (NS_UNCONSTRAINEDSIZE != aReflowState.computedWidth) {
aDesiredSize.width = aReflowState.computedWidth;
}
else {
aDesiredSize.width = NSIntPixelsToTwips(200, p2t);
}
if (NS_UNCONSTRAINEDSIZE != aReflowState.computedHeight) {
aDesiredSize.height = aReflowState.computedHeight;
}
else {
aDesiredSize.height = NSIntPixelsToTwips(200, p2t);
}
aDesiredSize.ascent = aDesiredSize.height;
aDesiredSize.descent = 0;
}
PRBool nsHTMLFrameOuterFrame::IsInline()
{
if (nsnull == mIsInline) {
nsIDOMHTMLFrameElement* frame = nsnull;
mContent->QueryInterface(kIDOMHTMLIFrameElementIID, (void**) &frame);
if (nsnull != frame) {
mIsInline = new PRBool(PR_TRUE);
NS_RELEASE(frame);
} else {
mIsInline = new PRBool(PR_FALSE);
}
}
return *mIsInline;
}
NS_IMETHODIMP
nsHTMLFrameOuterFrame::Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer)
{
//printf("outer paint %X (%d,%d,%d,%d) \n", this, aDirtyRect.x, aDirtyRect.y, aDirtyRect.width, aDirtyRect.height);
nsIFrame* firstChild = mFrames.FirstChild();
if (nsnull != firstChild) {
firstChild->Paint(aPresContext, aRenderingContext, aDirtyRect,
aWhichLayer);
}
if (IsInline()) {
return nsHTMLContainerFrame::Paint(aPresContext, aRenderingContext,
aDirtyRect, aWhichLayer);
} else {
return NS_OK;
}
}
NS_IMETHODIMP nsHTMLFrameOuterFrame::GetFrameName(nsString& aResult) const
{
return MakeFrameName("FrameOuter", aResult);
}
NS_IMETHODIMP
nsHTMLFrameOuterFrame::Reflow(nsIPresContext& aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
//printf("OuterFrame::Reflow %X (%d,%d) \n", this, aReflowState.availableWidth, aReflowState.availableHeight);
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
("enter nsHTMLFrameOuterFrame::Reflow: maxSize=%d,%d reason=%d",
aReflowState.availableWidth, aReflowState.availableHeight, aReflowState.reason));
if (IsInline()) {
GetDesiredSize(&aPresContext, aReflowState, aDesiredSize);
} else {
aDesiredSize.width = aReflowState.availableWidth;
aDesiredSize.height = aReflowState.availableHeight;
}
nsIFrame* firstChild = mFrames.FirstChild();
if (nsnull == firstChild) {
firstChild = new nsHTMLFrameInnerFrame;
mFrames.SetFrames(firstChild);
// XXX temporary! use style system to get correct style!
firstChild->Init(aPresContext, mContent, this, mStyleContext, nsnull);
}
nsSize innerSize(aDesiredSize.width, aDesiredSize.height);
nsPoint offset(0,0);
if (IsInline() && HasBorder()) {
const nsStyleSpacing* spacing =
(const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing);
nsMargin border;
spacing->CalcBorderFor(this, border);
offset.x = border.left;
offset.y = border.right;
innerSize.width -= border.left + border.right;
innerSize.height -= border.top + border.bottom;
}
// Reflow the child and get its desired size
nsHTMLReflowMetrics kidMetrics(aDesiredSize.maxElementSize);
nsHTMLReflowState kidReflowState(aPresContext, aReflowState, firstChild,
innerSize);
nsIHTMLReflow* htmlReflow;
if (NS_OK == firstChild->QueryInterface(kIHTMLReflowIID, (void**)&htmlReflow)) {
ReflowChild(firstChild, aPresContext, kidMetrics, kidReflowState, aStatus);
NS_ASSERTION(NS_FRAME_IS_COMPLETE(aStatus), "bad status");
// Place and size the child
nsRect rect(offset.x, offset.y, innerSize.width, innerSize.height);
firstChild->SetRect(rect);
}
// XXX what should the max-element-size of an iframe be? Shouldn't
// iframe's normally shrink wrap around their content when they
// don't have a specified width/height?
if (nsnull != aDesiredSize.maxElementSize) {
aDesiredSize.maxElementSize->width = aDesiredSize.width;
aDesiredSize.maxElementSize->height = aDesiredSize.height;
}
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
("exit nsHTMLFrameOuterFrame::Reflow: size=%d,%d status=%x",
aDesiredSize.width, aDesiredSize.height, aStatus));
return NS_OK;
}
NS_IMETHODIMP
nsHTMLFrameOuterFrame::VerifyTree() const
{
// XXX Completely disabled for now; once pseud-frames are reworked
// then we can turn it back on.
return NS_OK;
}
NS_IMETHODIMP
nsHTMLFrameOuterFrame::AttributeChanged(nsIPresContext* aPresContext,
nsIContent* aChild,
nsIAtom* aAttribute,
PRInt32 aHint)
{
if (nsHTMLAtoms::src == aAttribute) {
printf("got a request\n");
nsIFrame* firstChild = mFrames.FirstChild();
if (nsnull != firstChild) {
((nsHTMLFrameInnerFrame*)firstChild)->ReloadURL();
}
}
return NS_OK;
}
nsresult
NS_NewHTMLFrameOuterFrame(nsIFrame*& aResult)
{
nsIFrame* frame = new nsHTMLFrameOuterFrame;
if (nsnull == frame) {
return NS_ERROR_OUT_OF_MEMORY;
}
aResult = frame;
return NS_OK;
}
/*******************************************************************************
* nsHTMLFrameInnerFrame
******************************************************************************/
nsHTMLFrameInnerFrame::nsHTMLFrameInnerFrame()
: nsLeafFrame()
{
mWebShell = nsnull;
mCreatingViewer = PR_FALSE;
mTempObserver = new TempObserver();
NS_ADDREF(mTempObserver);
}
nsHTMLFrameInnerFrame::~nsHTMLFrameInnerFrame()
{
//printf("nsHTMLFrameInnerFrame destructor %X \n", this);
if (nsnull != mWebShell) {
mWebShell->Destroy();
NS_RELEASE(mWebShell);
}
NS_RELEASE(mTempObserver);
}
PRBool nsHTMLFrameInnerFrame::GetURL(nsIContent* aContent, nsString& aResult)
{
PRBool result = PR_FALSE;
nsIHTMLContent* content = nsnull;
aContent->QueryInterface(kIHTMLContentIID, (void**) &content);
if (nsnull != content) {
nsHTMLValue value;
if (NS_CONTENT_ATTR_HAS_VALUE == (content->GetHTMLAttribute(nsHTMLAtoms::src, value))) {
if (eHTMLUnit_String == value.GetUnit()) {
value.GetStringValue(aResult);
if (aResult.Length() > 0) {
result = PR_TRUE;
}
}
}
NS_RELEASE(content);
}
if (PR_FALSE == result) {
aResult.SetLength(0);
}
return result;
}
PRBool nsHTMLFrameInnerFrame::GetName(nsIContent* aContent, nsString& aResult)
{
PRBool result = PR_FALSE;
nsIHTMLContent* content = nsnull;
aContent->QueryInterface(kIHTMLContentIID, (void**) &content);
if (nsnull != content) {
nsHTMLValue value;
if (NS_CONTENT_ATTR_HAS_VALUE == (content->GetHTMLAttribute(nsHTMLAtoms::name, value))) {
if (eHTMLUnit_String == value.GetUnit()) {
value.GetStringValue(aResult);
result = PR_TRUE;
}
}
NS_RELEASE(content);
}
if (PR_FALSE == result) {
aResult.SetLength(0);
}
return result;
}
PRInt32 nsHTMLFrameInnerFrame::GetScrolling(nsIContent* aContent, PRBool aStandardMode)
{
nsIHTMLContent* content = nsnull;
aContent->QueryInterface(kIHTMLContentIID, (void**) &content);
if (nsnull != content) {
nsHTMLValue value;
if (NS_CONTENT_ATTR_HAS_VALUE == (content->GetHTMLAttribute(nsHTMLAtoms::scrolling, value))) {
if (eHTMLUnit_Enumerated == value.GetUnit()) {
PRInt32 returnValue;
PRInt32 intValue;
intValue = value.GetIntValue();
if (!aStandardMode) {
if ((NS_STYLE_FRAME_ON == intValue) || (NS_STYLE_FRAME_SCROLL == intValue)) {
intValue = NS_STYLE_FRAME_YES;
} else if ((NS_STYLE_FRAME_OFF == intValue) || (NS_STYLE_FRAME_NOSCROLL == intValue)) {
intValue = NS_STYLE_FRAME_NO;
}
}
if (NS_STYLE_FRAME_YES == intValue) {
returnValue = NS_STYLE_OVERFLOW_SCROLL;
} else if (NS_STYLE_FRAME_NO == intValue) {
returnValue = NS_STYLE_OVERFLOW_HIDDEN;
} else if (NS_STYLE_FRAME_AUTO == intValue) {
returnValue = NS_STYLE_OVERFLOW_AUTO;
}
NS_RELEASE(content);
return returnValue;
}
}
NS_RELEASE(content);
}
return -1;
}
nsFrameborder nsHTMLFrameInnerFrame::GetFrameBorder(PRBool aStandardMode)
{
nsIHTMLContent* content = nsnull;
mContent->QueryInterface(kIHTMLContentIID, (void**) &content);
if (nsnull != content) {
nsHTMLValue value;
if (NS_CONTENT_ATTR_HAS_VALUE == (content->GetHTMLAttribute(nsHTMLAtoms::frameborder, value))) {
if (eHTMLUnit_Enumerated == value.GetUnit()) {
PRInt32 intValue;
intValue = value.GetIntValue();
if (!aStandardMode) {
if (NS_STYLE_FRAME_YES == intValue) {
intValue = NS_STYLE_FRAME_0;
}
else if (NS_STYLE_FRAME_NO == intValue) {
intValue = NS_STYLE_FRAME_1;
}
}
if (NS_STYLE_FRAME_0 == intValue) {
NS_RELEASE(content);
return eFrameborder_No;
}
else if (NS_STYLE_FRAME_1 == intValue) {
NS_RELEASE(content);
return eFrameborder_Yes;
}
}
}
NS_RELEASE(content);
}
// XXX if we get here, check for nsIDOMFRAMESETElement interface
return eFrameborder_Notset;
}
PRInt32 nsHTMLFrameInnerFrame::GetMarginWidth(nsIPresContext* aPresContext, nsIContent* aContent)
{
PRInt32 marginWidth = -1;
nsIHTMLContent* content = nsnull;
if (NS_SUCCEEDED(mContent->QueryInterface(kIHTMLContentIID, (void**) &content))) {
float p2t;
aPresContext->GetScaledPixelsToTwips(&p2t);
nsHTMLValue value;
content->GetHTMLAttribute(nsHTMLAtoms::marginwidth, value);
if (eHTMLUnit_Pixel == value.GetUnit()) {
marginWidth = NSIntPixelsToTwips(value.GetPixelValue(), p2t);
if (marginWidth < 0) {
marginWidth = 0;
}
}
NS_RELEASE(content);
}
return marginWidth;
}
PRInt32 nsHTMLFrameInnerFrame::GetMarginHeight(nsIPresContext* aPresContext, nsIContent* aContent)
{
PRInt32 marginHeight = -1;
nsIHTMLContent* content = nsnull;
if (NS_SUCCEEDED(mContent->QueryInterface(kIHTMLContentIID, (void**) &content))) {
float p2t;
aPresContext->GetScaledPixelsToTwips(&p2t);
nsHTMLValue value;
content->GetHTMLAttribute(nsHTMLAtoms::marginheight, value);
if (eHTMLUnit_Pixel == value.GetUnit()) {
marginHeight = NSIntPixelsToTwips(value.GetPixelValue(), p2t);
if (marginHeight < 0) {
marginHeight = 0;
}
}
NS_RELEASE(content);
}
return marginHeight;
}
NS_IMETHODIMP nsHTMLFrameInnerFrame::GetFrameName(nsString& aResult) const
{
return MakeFrameName("FrameInner", aResult);
}
NS_METHOD
nsHTMLFrameInnerFrame::MoveTo(nscoord aX, nscoord aY)
{
return nsLeafFrame::MoveTo(aX, aY);
}
NS_METHOD
nsHTMLFrameInnerFrame::SizeTo(nscoord aWidth, nscoord aHeight)
{
return nsLeafFrame::SizeTo(aWidth, aHeight);
}
NS_IMETHODIMP
nsHTMLFrameInnerFrame::Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer)
{
//printf("inner paint %X (%d,%d,%d,%d) \n", this, aDirtyRect.x, aDirtyRect.y, aDirtyRect.width, aDirtyRect.height);
return NS_OK;
}
NS_IMETHODIMP
nsHTMLFrameInnerFrame::GetParentContent(nsIContent*& aContent)
{
nsHTMLFrameOuterFrame* parent;
GetParent((nsIFrame**)&parent);
nsIContent* content;
nsresult rv = parent->GetContent(&content);
aContent = content;
return rv;
}
PRIVATE
void TempMakeAbsURL(nsIContent* aContent, nsString& aRelURL, nsString& aAbsURL)
{
nsIURL* baseURL = nsnull;
nsIHTMLContent* htmlContent;
if (NS_SUCCEEDED(aContent->QueryInterface(kIHTMLContentIID, (void**)&htmlContent))) {
htmlContent->GetBaseURL(baseURL);
NS_RELEASE(htmlContent);
}
else {
nsIDocument* doc;
if (NS_SUCCEEDED(aContent->GetDocument(doc))) {
doc->GetBaseURL(baseURL);
NS_RELEASE(doc);
}
}
nsString empty;
NS_MakeAbsoluteURL(baseURL, empty, aRelURL, aAbsURL);
NS_IF_RELEASE(baseURL);
}
nsresult
nsHTMLFrameInnerFrame::CreateWebShell(nsIPresContext& aPresContext,
const nsSize& aSize)
{
nsresult rv;
nsIContent* content;
GetParentContent(content);
rv = nsComponentManager::CreateInstance(kWebShellCID, nsnull, kIWebShellIID,
(void**)&mWebShell);
if (NS_OK != rv) {
NS_ASSERTION(0, "could not create web widget");
return rv;
}
// pass along marginwidth, marginheight, scrolling so sub document can use it
mWebShell->SetMarginWidth(GetMarginWidth(&aPresContext, content));
mWebShell->SetMarginHeight(GetMarginHeight(&aPresContext, content));
nsCompatibility mode;
aPresContext.GetCompatibilityMode(&mode);
mWebShell->SetScrolling(GetScrolling(content, mode));
mWebShell->SetIsFrame(PR_TRUE);
nsString frameName;
if (GetName(content, frameName)) {
mWebShell->SetName(frameName);
}
// If our container is a web-shell, inform it that it has a new
// child. If it's not a web-shell then some things will not operate
// properly.
nsISupports* container;
aPresContext.GetContainer(&container);
if (nsnull != container) {
nsIWebShell* outerShell = nsnull;
container->QueryInterface(kIWebShellIID, (void**) &outerShell);
if (nsnull != outerShell) {
outerShell->AddChild(mWebShell);
// connect the container...
nsIWebShellContainer* outerContainer = nsnull;
container->QueryInterface(kIWebShellContainerIID, (void**) &outerContainer);
if (nsnull != outerContainer) {
mWebShell->SetContainer(outerContainer);
NS_RELEASE(outerContainer);
}
nsIPref* outerPrefs = nsnull; // connect the prefs
outerShell->GetPrefs(outerPrefs);
if (nsnull != outerPrefs) {
mWebShell->SetPrefs(outerPrefs);
NS_RELEASE(outerPrefs);
}
NS_RELEASE(outerShell);
}
NS_RELEASE(container);
}
float t2p;
aPresContext.GetTwipsToPixels(&t2p);
nsCOMPtr<nsIPresShell> presShell;
aPresContext.GetShell(getter_AddRefs(presShell));
// create, init, set the parent of the view
nsIView* view;
rv = nsComponentManager::CreateInstance(kCViewCID, nsnull, kIViewIID,
(void **)&view);
if (NS_OK != rv) {
NS_ASSERTION(0, "Could not create view for nsHTMLFrame");
return rv;
}
nsIView* parView;
nsPoint origin;
GetOffsetFromView(origin, &parView);
nsRect viewBounds(origin.x, origin.y, aSize.width, aSize.height);
nsCOMPtr<nsIViewManager> viewMan;
presShell->GetViewManager(getter_AddRefs(viewMan));
rv = view->Init(viewMan, viewBounds, parView);
viewMan->InsertChild(parView, view, 0);
rv = view->CreateWidget(kCChildCID);
SetView(view);
nsIWidget* widget;
view->GetWidget(widget);
nsRect webBounds(0, 0, NSToCoordRound(aSize.width * t2p),
NSToCoordRound(aSize.height * t2p));
mWebShell->Init(widget->GetNativeData(NS_NATIVE_WIDGET),
webBounds.x, webBounds.y,
webBounds.width, webBounds.height);
//GetScrolling(content, PR_FALSE));
NS_RELEASE(content);
NS_RELEASE(widget);
mWebShell->SetObserver(mTempObserver);
mWebShell->Show();
return NS_OK;
}
NS_IMETHODIMP
nsHTMLFrameInnerFrame::Reflow(nsIPresContext& aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
("enter nsHTMLFrameInnerFrame::Reflow: maxSize=%d,%d reason=%d",
aReflowState.availableWidth,
aReflowState.availableHeight,
aReflowState.reason));
nsresult rv = NS_OK;
// use the max size set in aReflowState by the nsHTMLFrameOuterFrame as our size
if (!mCreatingViewer) {
nsIContent* content;
GetParentContent(content);
nsAutoString url;
PRBool hasURL = GetURL(content, url);
// if the size is not 0 and there is a src, create the web shell
if ((aReflowState.availableWidth >= 0) && (aReflowState.availableHeight >= 0) && hasURL) {
if (nsnull == mWebShell) {
nsSize maxSize(aReflowState.availableWidth, aReflowState.availableHeight);
rv = CreateWebShell(aPresContext, maxSize);
}
if (nsnull != mWebShell) {
mCreatingViewer=PR_TRUE;
// load the document
nsString absURL;
TempMakeAbsURL(content, url, absURL);
rv = mWebShell->LoadURL(absURL); // URL string with a default nsnull value for post Data
}
} else {
mCreatingViewer = PR_TRUE;
}
NS_RELEASE(content);
}
aDesiredSize.width = aReflowState.availableWidth;
aDesiredSize.height = aReflowState.availableHeight;
aDesiredSize.ascent = aDesiredSize.height;
aDesiredSize.descent = 0;
// resize the sub document
if (mWebShell) {
float t2p;
aPresContext.GetTwipsToPixels(&t2p);
nsRect subBounds;
mWebShell->GetBounds(subBounds.x, subBounds.y,
subBounds.width, subBounds.height);
subBounds.width = NSToCoordRound(aDesiredSize.width * t2p);
subBounds.height = NSToCoordRound(aDesiredSize.height * t2p);
mWebShell->SetBounds(subBounds.x, subBounds.y,
subBounds.width, subBounds.height);
mWebShell->Repaint(PR_TRUE);
aStatus = NS_FRAME_COMPLETE;
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
("exit nsHTMLFrameInnerFrame::Reflow: size=%d,%d rv=%x",
aDesiredSize.width, aDesiredSize.height, aStatus));
}
return rv;
}
nsresult
nsHTMLFrameInnerFrame::ReloadURL()
{
nsresult rv = NS_OK;
nsIContent* content;
GetParentContent(content);
if (nsnull != content) {
nsAutoString url;
GetURL(content, url);
// load a new url if the size is not 0
if ((mRect.width > 0) && (mRect.height > 0)) {
if (nsnull != mWebShell) {
mCreatingViewer=PR_TRUE;
// load the document
nsString absURL;
TempMakeAbsURL(content, url, absURL);
rv = mWebShell->LoadURL(absURL); // URL string with a default nsnull value for post Data
}
} else {
mCreatingViewer = PR_TRUE;
}
NS_RELEASE(content);
}
return rv;
}
void
nsHTMLFrameInnerFrame::GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredSize)
{
// it must be defined, but not called
NS_ASSERTION(0, "this should never be called");
aDesiredSize.width = 0;
aDesiredSize.height = 0;
aDesiredSize.ascent = 0;
aDesiredSize.descent = 0;
}
/*******************************************************************************
* FrameLoadingInfo
******************************************************************************/
FrameLoadingInfo::FrameLoadingInfo(const nsSize& aSize)
{
NS_INIT_REFCNT();
mFrameSize = aSize;
}
/*
* Implementation of ISupports methods...
*/
NS_IMPL_ISUPPORTS(FrameLoadingInfo,kISupportsIID);
// XXX temp implementation
NS_IMPL_ADDREF(TempObserver);
NS_IMPL_RELEASE(TempObserver);
/*******************************************************************************
* TempObserver
******************************************************************************/
nsresult
TempObserver::QueryInterface(const nsIID& aIID,
void** aInstancePtrResult)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null pointer");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kIStreamObserverIID)) {
*aInstancePtrResult = (void*) ((nsIStreamObserver*)this);
AddRef();
return NS_OK;
}
if (aIID.Equals(kISupportsIID)) {
*aInstancePtrResult = (void*) ((nsISupports*)((nsIDocumentObserver*)this));
AddRef();
return NS_OK;
}
return NS_NOINTERFACE;
}
NS_IMETHODIMP
TempObserver::OnProgress(nsIURL* aURL, PRUint32 aProgress, PRUint32 aProgressMax)
{
#if 0
fputs("[progress ", stdout);
fputs(mURL, stdout);
printf(" %d %d ", aProgress, aProgressMax);
fputs("]\n", stdout);
#endif
return NS_OK;
}
NS_IMETHODIMP
TempObserver::OnStatus(nsIURL* aURL, const PRUnichar* aMsg)
{
#if 0
fputs("[status ", stdout);
fputs(mURL, stdout);
fputs(aMsg, stdout);
fputs("]\n", stdout);
#endif
return NS_OK;
}
NS_IMETHODIMP
TempObserver::OnStartBinding(nsIURL* aURL, const char *aContentType)
{
#if 0
fputs("Loading ", stdout);
fputs(mURL, stdout);
fputs("\n", stdout);
#endif
return NS_OK;
}
NS_IMETHODIMP
TempObserver::OnStopBinding(nsIURL* aURL, nsresult status, const PRUnichar* aMsg)
{
#if 0
fputs("Done loading ", stdout);
fputs(mURL, stdout);
fputs("\n", stdout);
#endif
return NS_OK;
}
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