mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-01 14:45:29 +00:00
e368dc9c85
This patch was generated by a script. Here's the source of the script for
future reference:
function convert() {
echo "Converting $1 to $2..."
find . ! -wholename "*nsprpub*" \
! -wholename "*security/nss*" \
! -wholename "*/.hg*" \
! -wholename "obj-ff-dbg*" \
! -name nsXPCOMCID.h \
! -name prtypes.h \
-type f \
\( -iname "*.cpp" \
-o -iname "*.h" \
-o -iname "*.c" \
-o -iname "*.cc" \
-o -iname "*.idl" \
-o -iname "*.ipdl" \
-o -iname "*.ipdlh" \
-o -iname "*.mm" \) | \
xargs -n 1 sed -i -e "s/\b$1\b/$2/g"
}
convert PRInt8 int8_t
convert PRUint8 uint8_t
convert PRInt16 int16_t
convert PRUint16 uint16_t
convert PRInt32 int32_t
convert PRUint32 uint32_t
convert PRInt64 int64_t
convert PRUint64 uint64_t
convert PRIntn int
convert PRUintn unsigned
convert PRSize size_t
convert PROffset32 int32_t
convert PROffset64 int64_t
convert PRPtrdiff ptrdiff_t
convert PRFloat64 double
562 lines
15 KiB
C++
562 lines
15 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "nsFrameList.h"
|
|
#include "nsIFrame.h"
|
|
#include "nsLayoutUtils.h"
|
|
|
|
#ifdef IBMBIDI
|
|
#include "nsCOMPtr.h"
|
|
#include "nsGkAtoms.h"
|
|
#include "nsILineIterator.h"
|
|
#include "nsBidiPresUtils.h"
|
|
#endif // IBMBIDI
|
|
|
|
const nsFrameList* nsFrameList::sEmptyList;
|
|
|
|
/* static */
|
|
void
|
|
nsFrameList::Init()
|
|
{
|
|
NS_PRECONDITION(!sEmptyList, "Shouldn't be allocated");
|
|
|
|
sEmptyList = new nsFrameList();
|
|
}
|
|
|
|
void
|
|
nsFrameList::Destroy()
|
|
{
|
|
NS_PRECONDITION(this != sEmptyList, "Shouldn't Destroy() sEmptyList");
|
|
|
|
DestroyFrames();
|
|
delete this;
|
|
}
|
|
|
|
void
|
|
nsFrameList::DestroyFrom(nsIFrame* aDestructRoot)
|
|
{
|
|
NS_PRECONDITION(this != sEmptyList, "Shouldn't Destroy() sEmptyList");
|
|
|
|
DestroyFramesFrom(aDestructRoot);
|
|
delete this;
|
|
}
|
|
|
|
void
|
|
nsFrameList::DestroyFrames()
|
|
{
|
|
while (nsIFrame* frame = RemoveFirstChild()) {
|
|
frame->Destroy();
|
|
}
|
|
mLastChild = nullptr;
|
|
}
|
|
|
|
void
|
|
nsFrameList::DestroyFramesFrom(nsIFrame* aDestructRoot)
|
|
{
|
|
NS_PRECONDITION(aDestructRoot, "Missing destruct root");
|
|
|
|
while (nsIFrame* frame = RemoveFirstChild()) {
|
|
frame->DestroyFrom(aDestructRoot);
|
|
}
|
|
mLastChild = nullptr;
|
|
}
|
|
|
|
void
|
|
nsFrameList::SetFrames(nsIFrame* aFrameList)
|
|
{
|
|
NS_PRECONDITION(!mFirstChild, "Losing frames");
|
|
|
|
mFirstChild = aFrameList;
|
|
mLastChild = nsLayoutUtils::GetLastSibling(mFirstChild);
|
|
}
|
|
|
|
void
|
|
nsFrameList::RemoveFrame(nsIFrame* aFrame)
|
|
{
|
|
NS_PRECONDITION(aFrame, "null ptr");
|
|
#ifdef DEBUG_FRAME_LIST
|
|
// ContainsFrame is O(N)
|
|
NS_PRECONDITION(ContainsFrame(aFrame), "wrong list");
|
|
#endif
|
|
|
|
nsIFrame* nextFrame = aFrame->GetNextSibling();
|
|
if (aFrame == mFirstChild) {
|
|
mFirstChild = nextFrame;
|
|
aFrame->SetNextSibling(nullptr);
|
|
if (!nextFrame) {
|
|
mLastChild = nullptr;
|
|
}
|
|
}
|
|
else {
|
|
nsIFrame* prevSibling = aFrame->GetPrevSibling();
|
|
NS_ASSERTION(prevSibling && prevSibling->GetNextSibling() == aFrame,
|
|
"Broken frame linkage");
|
|
prevSibling->SetNextSibling(nextFrame);
|
|
aFrame->SetNextSibling(nullptr);
|
|
if (!nextFrame) {
|
|
mLastChild = prevSibling;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool
|
|
nsFrameList::RemoveFrameIfPresent(nsIFrame* aFrame)
|
|
{
|
|
NS_PRECONDITION(aFrame, "null ptr");
|
|
|
|
for (Enumerator e(*this); !e.AtEnd(); e.Next()) {
|
|
if (e.get() == aFrame) {
|
|
RemoveFrame(aFrame);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
nsFrameList
|
|
nsFrameList::RemoveFramesAfter(nsIFrame* aAfterFrame)
|
|
{
|
|
if (!aAfterFrame) {
|
|
nsFrameList result;
|
|
result.InsertFrames(nullptr, nullptr, *this);
|
|
return result;
|
|
}
|
|
|
|
NS_PRECONDITION(NotEmpty(), "illegal operation on empty list");
|
|
#ifdef DEBUG_FRAME_LIST
|
|
NS_PRECONDITION(ContainsFrame(aAfterFrame), "wrong list");
|
|
#endif
|
|
|
|
nsIFrame* tail = aAfterFrame->GetNextSibling();
|
|
// if (!tail) return EmptyList(); -- worth optimizing this case?
|
|
nsIFrame* oldLastChild = mLastChild;
|
|
mLastChild = aAfterFrame;
|
|
aAfterFrame->SetNextSibling(nullptr);
|
|
return nsFrameList(tail, tail ? oldLastChild : nullptr);
|
|
}
|
|
|
|
nsIFrame*
|
|
nsFrameList::RemoveFirstChild()
|
|
{
|
|
if (mFirstChild) {
|
|
nsIFrame* firstChild = mFirstChild;
|
|
RemoveFrame(firstChild);
|
|
return firstChild;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void
|
|
nsFrameList::DestroyFrame(nsIFrame* aFrame)
|
|
{
|
|
NS_PRECONDITION(aFrame, "null ptr");
|
|
RemoveFrame(aFrame);
|
|
aFrame->Destroy();
|
|
}
|
|
|
|
bool
|
|
nsFrameList::DestroyFrameIfPresent(nsIFrame* aFrame)
|
|
{
|
|
NS_PRECONDITION(aFrame, "null ptr");
|
|
|
|
if (RemoveFrameIfPresent(aFrame)) {
|
|
aFrame->Destroy();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
nsFrameList::Slice
|
|
nsFrameList::InsertFrames(nsIFrame* aParent, nsIFrame* aPrevSibling,
|
|
nsFrameList& aFrameList)
|
|
{
|
|
NS_PRECONDITION(aFrameList.NotEmpty(), "Unexpected empty list");
|
|
|
|
if (aParent) {
|
|
aFrameList.ApplySetParent(aParent);
|
|
}
|
|
|
|
NS_ASSERTION(IsEmpty() ||
|
|
FirstChild()->GetParent() == aFrameList.FirstChild()->GetParent(),
|
|
"frame to add has different parent");
|
|
NS_ASSERTION(!aPrevSibling ||
|
|
aPrevSibling->GetParent() == aFrameList.FirstChild()->GetParent(),
|
|
"prev sibling has different parent");
|
|
#ifdef DEBUG_FRAME_LIST
|
|
// ContainsFrame is O(N)
|
|
NS_ASSERTION(!aPrevSibling || ContainsFrame(aPrevSibling),
|
|
"prev sibling is not on this list");
|
|
#endif
|
|
|
|
nsIFrame* firstNewFrame = aFrameList.FirstChild();
|
|
nsIFrame* nextSibling;
|
|
if (aPrevSibling) {
|
|
nextSibling = aPrevSibling->GetNextSibling();
|
|
aPrevSibling->SetNextSibling(firstNewFrame);
|
|
}
|
|
else {
|
|
nextSibling = mFirstChild;
|
|
mFirstChild = firstNewFrame;
|
|
}
|
|
|
|
nsIFrame* lastNewFrame = aFrameList.LastChild();
|
|
lastNewFrame->SetNextSibling(nextSibling);
|
|
if (!nextSibling) {
|
|
mLastChild = lastNewFrame;
|
|
}
|
|
|
|
VerifyList();
|
|
|
|
aFrameList.Clear();
|
|
return Slice(*this, firstNewFrame, nextSibling);
|
|
}
|
|
|
|
nsFrameList
|
|
nsFrameList::ExtractHead(FrameLinkEnumerator& aLink)
|
|
{
|
|
NS_PRECONDITION(&aLink.List() == this, "Unexpected list");
|
|
NS_PRECONDITION(!aLink.PrevFrame() ||
|
|
aLink.PrevFrame()->GetNextSibling() ==
|
|
aLink.NextFrame(),
|
|
"Unexpected PrevFrame()");
|
|
NS_PRECONDITION(aLink.PrevFrame() ||
|
|
aLink.NextFrame() == FirstChild(),
|
|
"Unexpected NextFrame()");
|
|
NS_PRECONDITION(!aLink.PrevFrame() ||
|
|
aLink.NextFrame() != FirstChild(),
|
|
"Unexpected NextFrame()");
|
|
NS_PRECONDITION(aLink.mEnd == nullptr,
|
|
"Unexpected mEnd for frame link enumerator");
|
|
|
|
nsIFrame* prev = aLink.PrevFrame();
|
|
nsIFrame* newFirstFrame = nullptr;
|
|
if (prev) {
|
|
// Truncate the list after |prev| and hand the first part to our new list.
|
|
prev->SetNextSibling(nullptr);
|
|
newFirstFrame = mFirstChild;
|
|
mFirstChild = aLink.NextFrame();
|
|
if (!mFirstChild) { // we handed over the whole list
|
|
mLastChild = nullptr;
|
|
}
|
|
|
|
// Now make sure aLink doesn't point to a frame we no longer have.
|
|
aLink.mPrev = nullptr;
|
|
}
|
|
// else aLink is pointing to before our first frame. Nothing to do.
|
|
|
|
return nsFrameList(newFirstFrame, prev);
|
|
}
|
|
|
|
nsFrameList
|
|
nsFrameList::ExtractTail(FrameLinkEnumerator& aLink)
|
|
{
|
|
NS_PRECONDITION(&aLink.List() == this, "Unexpected list");
|
|
NS_PRECONDITION(!aLink.PrevFrame() ||
|
|
aLink.PrevFrame()->GetNextSibling() ==
|
|
aLink.NextFrame(),
|
|
"Unexpected PrevFrame()");
|
|
NS_PRECONDITION(aLink.PrevFrame() ||
|
|
aLink.NextFrame() == FirstChild(),
|
|
"Unexpected NextFrame()");
|
|
NS_PRECONDITION(!aLink.PrevFrame() ||
|
|
aLink.NextFrame() != FirstChild(),
|
|
"Unexpected NextFrame()");
|
|
NS_PRECONDITION(aLink.mEnd == nullptr,
|
|
"Unexpected mEnd for frame link enumerator");
|
|
|
|
nsIFrame* prev = aLink.PrevFrame();
|
|
nsIFrame* newFirstFrame;
|
|
nsIFrame* newLastFrame;
|
|
if (prev) {
|
|
// Truncate the list after |prev| and hand the second part to our new list
|
|
prev->SetNextSibling(nullptr);
|
|
newFirstFrame = aLink.NextFrame();
|
|
newLastFrame = newFirstFrame ? mLastChild : nullptr;
|
|
mLastChild = prev;
|
|
} else {
|
|
// Hand the whole list over to our new list
|
|
newFirstFrame = mFirstChild;
|
|
newLastFrame = mLastChild;
|
|
Clear();
|
|
}
|
|
|
|
// Now make sure aLink doesn't point to a frame we no longer have.
|
|
aLink.mFrame = nullptr;
|
|
|
|
NS_POSTCONDITION(aLink.AtEnd(), "What's going on here?");
|
|
|
|
return nsFrameList(newFirstFrame, newLastFrame);
|
|
}
|
|
|
|
nsIFrame*
|
|
nsFrameList::FrameAt(int32_t aIndex) const
|
|
{
|
|
NS_PRECONDITION(aIndex >= 0, "invalid arg");
|
|
if (aIndex < 0) return nullptr;
|
|
nsIFrame* frame = mFirstChild;
|
|
while ((aIndex-- > 0) && frame) {
|
|
frame = frame->GetNextSibling();
|
|
}
|
|
return frame;
|
|
}
|
|
|
|
int32_t
|
|
nsFrameList::IndexOf(nsIFrame* aFrame) const
|
|
{
|
|
int32_t count = 0;
|
|
for (nsIFrame* f = mFirstChild; f; f = f->GetNextSibling()) {
|
|
if (f == aFrame)
|
|
return count;
|
|
++count;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
bool
|
|
nsFrameList::ContainsFrame(const nsIFrame* aFrame) const
|
|
{
|
|
NS_PRECONDITION(aFrame, "null ptr");
|
|
|
|
nsIFrame* frame = mFirstChild;
|
|
while (frame) {
|
|
if (frame == aFrame) {
|
|
return true;
|
|
}
|
|
frame = frame->GetNextSibling();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
int32_t
|
|
nsFrameList::GetLength() const
|
|
{
|
|
int32_t count = 0;
|
|
nsIFrame* frame = mFirstChild;
|
|
while (frame) {
|
|
count++;
|
|
frame = frame->GetNextSibling();
|
|
}
|
|
return count;
|
|
}
|
|
|
|
void
|
|
nsFrameList::ApplySetParent(nsIFrame* aParent) const
|
|
{
|
|
NS_ASSERTION(aParent, "null ptr");
|
|
|
|
for (nsIFrame* f = FirstChild(); f; f = f->GetNextSibling()) {
|
|
f->SetParent(aParent);
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
void
|
|
nsFrameList::List(FILE* out) const
|
|
{
|
|
fputs("<\n", out);
|
|
for (nsIFrame* frame = mFirstChild; frame;
|
|
frame = frame->GetNextSibling()) {
|
|
frame->List(out, 1);
|
|
}
|
|
fputs(">\n", out);
|
|
}
|
|
#endif
|
|
|
|
#ifdef IBMBIDI
|
|
nsIFrame*
|
|
nsFrameList::GetPrevVisualFor(nsIFrame* aFrame) const
|
|
{
|
|
if (!mFirstChild)
|
|
return nullptr;
|
|
|
|
nsIFrame* parent = mFirstChild->GetParent();
|
|
if (!parent)
|
|
return aFrame ? aFrame->GetPrevSibling() : LastChild();
|
|
|
|
nsBidiLevel baseLevel = nsBidiPresUtils::GetFrameBaseLevel(mFirstChild);
|
|
|
|
nsAutoLineIterator iter = parent->GetLineIterator();
|
|
if (!iter) {
|
|
// Parent is not a block Frame
|
|
if (parent->GetType() == nsGkAtoms::lineFrame) {
|
|
// Line frames are not bidi-splittable, so need to consider bidi reordering
|
|
if (baseLevel == NSBIDI_LTR) {
|
|
return nsBidiPresUtils::GetFrameToLeftOf(aFrame, mFirstChild, -1);
|
|
} else { // RTL
|
|
return nsBidiPresUtils::GetFrameToRightOf(aFrame, mFirstChild, -1);
|
|
}
|
|
} else {
|
|
// Just get the next or prev sibling, depending on block and frame direction.
|
|
nsBidiLevel frameEmbeddingLevel = nsBidiPresUtils::GetFrameEmbeddingLevel(mFirstChild);
|
|
if ((frameEmbeddingLevel & 1) == (baseLevel & 1)) {
|
|
return aFrame ? aFrame->GetPrevSibling() : LastChild();
|
|
} else {
|
|
return aFrame ? aFrame->GetNextSibling() : mFirstChild;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Parent is a block frame, so use the LineIterator to find the previous visual
|
|
// sibling on this line, or the last one on the previous line.
|
|
|
|
int32_t thisLine;
|
|
if (aFrame) {
|
|
thisLine = iter->FindLineContaining(aFrame);
|
|
if (thisLine < 0)
|
|
return nullptr;
|
|
} else {
|
|
thisLine = iter->GetNumLines();
|
|
}
|
|
|
|
nsIFrame* frame = nullptr;
|
|
nsIFrame* firstFrameOnLine;
|
|
int32_t numFramesOnLine;
|
|
nsRect lineBounds;
|
|
uint32_t lineFlags;
|
|
|
|
if (aFrame) {
|
|
iter->GetLine(thisLine, &firstFrameOnLine, &numFramesOnLine, lineBounds, &lineFlags);
|
|
|
|
if (baseLevel == NSBIDI_LTR) {
|
|
frame = nsBidiPresUtils::GetFrameToLeftOf(aFrame, firstFrameOnLine, numFramesOnLine);
|
|
} else { // RTL
|
|
frame = nsBidiPresUtils::GetFrameToRightOf(aFrame, firstFrameOnLine, numFramesOnLine);
|
|
}
|
|
}
|
|
|
|
if (!frame && thisLine > 0) {
|
|
// Get the last frame of the previous line
|
|
iter->GetLine(thisLine - 1, &firstFrameOnLine, &numFramesOnLine, lineBounds, &lineFlags);
|
|
|
|
if (baseLevel == NSBIDI_LTR) {
|
|
frame = nsBidiPresUtils::GetFrameToLeftOf(nullptr, firstFrameOnLine, numFramesOnLine);
|
|
} else { // RTL
|
|
frame = nsBidiPresUtils::GetFrameToRightOf(nullptr, firstFrameOnLine, numFramesOnLine);
|
|
}
|
|
}
|
|
return frame;
|
|
}
|
|
|
|
nsIFrame*
|
|
nsFrameList::GetNextVisualFor(nsIFrame* aFrame) const
|
|
{
|
|
if (!mFirstChild)
|
|
return nullptr;
|
|
|
|
nsIFrame* parent = mFirstChild->GetParent();
|
|
if (!parent)
|
|
return aFrame ? aFrame->GetPrevSibling() : mFirstChild;
|
|
|
|
nsBidiLevel baseLevel = nsBidiPresUtils::GetFrameBaseLevel(mFirstChild);
|
|
|
|
nsAutoLineIterator iter = parent->GetLineIterator();
|
|
if (!iter) {
|
|
// Parent is not a block Frame
|
|
if (parent->GetType() == nsGkAtoms::lineFrame) {
|
|
// Line frames are not bidi-splittable, so need to consider bidi reordering
|
|
if (baseLevel == NSBIDI_LTR) {
|
|
return nsBidiPresUtils::GetFrameToRightOf(aFrame, mFirstChild, -1);
|
|
} else { // RTL
|
|
return nsBidiPresUtils::GetFrameToLeftOf(aFrame, mFirstChild, -1);
|
|
}
|
|
} else {
|
|
// Just get the next or prev sibling, depending on block and frame direction.
|
|
nsBidiLevel frameEmbeddingLevel = nsBidiPresUtils::GetFrameEmbeddingLevel(mFirstChild);
|
|
if ((frameEmbeddingLevel & 1) == (baseLevel & 1)) {
|
|
return aFrame ? aFrame->GetNextSibling() : mFirstChild;
|
|
} else {
|
|
return aFrame ? aFrame->GetPrevSibling() : LastChild();
|
|
}
|
|
}
|
|
}
|
|
|
|
// Parent is a block frame, so use the LineIterator to find the next visual
|
|
// sibling on this line, or the first one on the next line.
|
|
|
|
int32_t thisLine;
|
|
if (aFrame) {
|
|
thisLine = iter->FindLineContaining(aFrame);
|
|
if (thisLine < 0)
|
|
return nullptr;
|
|
} else {
|
|
thisLine = -1;
|
|
}
|
|
|
|
nsIFrame* frame = nullptr;
|
|
nsIFrame* firstFrameOnLine;
|
|
int32_t numFramesOnLine;
|
|
nsRect lineBounds;
|
|
uint32_t lineFlags;
|
|
|
|
if (aFrame) {
|
|
iter->GetLine(thisLine, &firstFrameOnLine, &numFramesOnLine, lineBounds, &lineFlags);
|
|
|
|
if (baseLevel == NSBIDI_LTR) {
|
|
frame = nsBidiPresUtils::GetFrameToRightOf(aFrame, firstFrameOnLine, numFramesOnLine);
|
|
} else { // RTL
|
|
frame = nsBidiPresUtils::GetFrameToLeftOf(aFrame, firstFrameOnLine, numFramesOnLine);
|
|
}
|
|
}
|
|
|
|
int32_t numLines = iter->GetNumLines();
|
|
if (!frame && thisLine < numLines - 1) {
|
|
// Get the first frame of the next line
|
|
iter->GetLine(thisLine + 1, &firstFrameOnLine, &numFramesOnLine, lineBounds, &lineFlags);
|
|
|
|
if (baseLevel == NSBIDI_LTR) {
|
|
frame = nsBidiPresUtils::GetFrameToRightOf(nullptr, firstFrameOnLine, numFramesOnLine);
|
|
} else { // RTL
|
|
frame = nsBidiPresUtils::GetFrameToLeftOf(nullptr, firstFrameOnLine, numFramesOnLine);
|
|
}
|
|
}
|
|
return frame;
|
|
}
|
|
#endif
|
|
|
|
#ifdef DEBUG_FRAME_LIST
|
|
void
|
|
nsFrameList::VerifyList() const
|
|
{
|
|
NS_ASSERTION((mFirstChild == nullptr) == (mLastChild == nullptr),
|
|
"bad list state");
|
|
|
|
if (IsEmpty()) {
|
|
return;
|
|
}
|
|
|
|
// Simple algorithm to find a loop in a linked list -- advance pointers
|
|
// through it at speeds of 1 and 2, and if they ever get to be equal bail
|
|
NS_ASSERTION(!mFirstChild->GetPrevSibling(), "bad prev sibling pointer");
|
|
nsIFrame *first = mFirstChild, *second = mFirstChild;
|
|
for (;;) {
|
|
first = first->GetNextSibling();
|
|
second = second->GetNextSibling();
|
|
if (!second) {
|
|
break;
|
|
}
|
|
NS_ASSERTION(second->GetPrevSibling()->GetNextSibling() == second,
|
|
"bad prev sibling pointer");
|
|
second = second->GetNextSibling();
|
|
if (first == second) {
|
|
// Loop detected! Since second advances faster, they can't both be null;
|
|
// we would have broken out of the loop long ago.
|
|
NS_ERROR("loop in frame list. This will probably hang soon.");
|
|
return;
|
|
}
|
|
if (!second) {
|
|
break;
|
|
}
|
|
NS_ASSERTION(second->GetPrevSibling()->GetNextSibling() == second,
|
|
"bad prev sibling pointer");
|
|
}
|
|
|
|
NS_ASSERTION(mLastChild == nsLayoutUtils::GetLastSibling(mFirstChild),
|
|
"bogus mLastChild");
|
|
// XXX we should also assert that all GetParent() are either null or
|
|
// the same non-null value, but nsCSSFrameConstructor::nsFrameItems
|
|
// prevents that, e.g. table captions.
|
|
}
|
|
#endif
|