bool
ContentCacheInParent::GetTextRect(uint32_t aOffset,
LayoutDeviceIntRect& aTextRect) const
{
MOZ_LOG(sContentCacheLog, LogLevel::Info,
("ContentCacheInParent: 0x%p GetTextRect(aOffset=%u), "
"mTextRectArray={ mStart=%u, mRects.Length()=%u }, "
"mSelection={ mAnchor=%u, mFocus=%u }",
this, aOffset, mTextRectArray.mStart, mTextRectArray.mRects.Length(),
mSelection.mAnchor, mSelection.mFocus));
if (!aOffset) {
NS_WARN_IF(mFirstCharRect.IsEmpty());
aTextRect = mFirstCharRect;
return !aTextRect.IsEmpty();
}
if (aOffset == mSelection.mAnchor) {
NS_WARN_IF(mSelection.mAnchorCharRect.IsEmpty());
aTextRect = mSelection.mAnchorCharRect;
return !aTextRect.IsEmpty();
}
if (aOffset == mSelection.mFocus) {
NS_WARN_IF(mSelection.mFocusCharRect.IsEmpty());
aTextRect = mSelection.mFocusCharRect;
return !aTextRect.IsEmpty();
}
if (!mTextRectArray.InRange(aOffset)) {
aTextRect.SetEmpty();
return false;
}
aTextRect = mTextRectArray.GetRect(aOffset);
return true;
}
already_AddRefed<gfx::DrawTarget>
CompositorWidgetProxy::CreateBackBufferDrawTarget(gfx::DrawTarget* aScreenTarget,
const LayoutDeviceIntRect& aRect,
const LayoutDeviceIntRect& aClearRect)
{
MOZ_ASSERT(aScreenTarget);
gfx::SurfaceFormat format = gfx::SurfaceFormat::B8G8R8A8;
gfx::IntSize size = aRect.ToUnknownRect().Size();
gfx::IntSize clientSize(GetClientSize().ToUnknownSize());
RefPtr<gfx::DrawTarget> target;
// Re-use back buffer if possible
if (mLastBackBuffer &&
mLastBackBuffer->GetBackendType() == aScreenTarget->GetBackendType() &&
mLastBackBuffer->GetFormat() == format &&
size <= mLastBackBuffer->GetSize() &&
mLastBackBuffer->GetSize() <= clientSize) {
target = mLastBackBuffer;
target->SetTransform(gfx::Matrix());
if (!aClearRect.IsEmpty()) {
gfx::IntRect clearRect = aClearRect.ToUnknownRect() - aRect.ToUnknownRect().TopLeft();
target->ClearRect(gfx::Rect(clearRect.x, clearRect.y, clearRect.width, clearRect.height));
}
} else {
target = aScreenTarget->CreateSimilarDrawTarget(size, format);
mLastBackBuffer = target;
}
return target.forget();
}
void
PuppetWidget::Resize(double aWidth,
double aHeight,
bool aRepaint)
{
LayoutDeviceIntRect oldBounds = mBounds;
mBounds.SizeTo(LayoutDeviceIntSize(NSToIntRound(aWidth),
NSToIntRound(aHeight)));
if (mChild) {
mChild->Resize(aWidth, aHeight, aRepaint);
return;
}
// XXX: roc says that |aRepaint| dictates whether or not to
// invalidate the expanded area
if (oldBounds.Size() < mBounds.Size() && aRepaint) {
LayoutDeviceIntRegion dirty(mBounds);
dirty.Sub(dirty, oldBounds);
InvalidateRegion(this, dirty);
}
// call WindowResized() on both the current listener, and possibly
// also the previous one if we're in a state where we're drawing that one
// because the current one is paint suppressed
if (!oldBounds.IsEqualEdges(mBounds) && mAttachedWidgetListener) {
if (GetCurrentWidgetListener() &&
GetCurrentWidgetListener() != mAttachedWidgetListener) {
GetCurrentWidgetListener()->WindowResized(this, mBounds.width, mBounds.height);
}
mAttachedWidgetListener->WindowResized(this, mBounds.width, mBounds.height);
}
}
static void CalculatePluginClip(const LayoutDeviceIntRect& aBounds,
const nsTArray<LayoutDeviceIntRect>& aPluginClipRects,
const LayoutDeviceIntPoint& aContentOffset,
const LayoutDeviceIntRegion& aParentLayerVisibleRegion,
nsTArray<LayoutDeviceIntRect>& aResult,
LayoutDeviceIntRect& aVisibleBounds,
bool& aPluginIsVisible)
{
aPluginIsVisible = true;
LayoutDeviceIntRegion contentVisibleRegion;
// aPluginClipRects (plugin widget origin) - contains *visible* rects
for (uint32_t idx = 0; idx < aPluginClipRects.Length(); idx++) {
LayoutDeviceIntRect rect = aPluginClipRects[idx];
// shift to content origin
rect.MoveBy(aBounds.x, aBounds.y);
// accumulate visible rects
contentVisibleRegion.OrWith(rect);
}
// apply layers clip (window origin)
LayoutDeviceIntRegion region = aParentLayerVisibleRegion;
region.MoveBy(-aContentOffset.x, -aContentOffset.y);
contentVisibleRegion.AndWith(region);
if (contentVisibleRegion.IsEmpty()) {
aPluginIsVisible = false;
return;
}
// shift to plugin widget origin
contentVisibleRegion.MoveBy(-aBounds.x, -aBounds.y);
LayoutDeviceIntRegion::RectIterator iter(contentVisibleRegion);
for (const LayoutDeviceIntRect* rgnRect = iter.Next(); rgnRect; rgnRect = iter.Next()) {
aResult.AppendElement(*rgnRect);
aVisibleBounds.UnionRect(aVisibleBounds, *rgnRect);
}
}
void
CompositorD3D9::EnsureSize()
{
LayoutDeviceIntRect rect;
mWidget->GetClientBounds(rect);
mSize = rect.Size();
}
void
ClientLayerManager::MakeSnapshotIfRequired()
{
if (!mShadowTarget) {
return;
}
if (mWidget) {
if (CompositorBridgeChild* remoteRenderer = GetRemoteRenderer()) {
// The compositor doesn't draw to a different sized surface
// when there's a rotation. Instead we rotate the result
// when drawing into dt
LayoutDeviceIntRect outerBounds;
mWidget->GetBounds(outerBounds);
IntRect bounds = ToOutsideIntRect(mShadowTarget->GetClipExtents());
if (mTargetRotation) {
bounds =
RotateRect(bounds, outerBounds.ToUnknownRect(), mTargetRotation);
}
SurfaceDescriptor inSnapshot;
if (!bounds.IsEmpty() &&
mForwarder->AllocSurfaceDescriptor(bounds.Size(),
gfxContentType::COLOR_ALPHA,
&inSnapshot)) {
// Make a copy of |inSnapshot| because the call to send it over IPC
// will call forget() on the Shmem inside, and zero it out.
SurfaceDescriptor outSnapshot = inSnapshot;
if (remoteRenderer->SendMakeSnapshot(inSnapshot, bounds)) {
RefPtr<DataSourceSurface> surf = GetSurfaceForDescriptor(outSnapshot);
DrawTarget* dt = mShadowTarget->GetDrawTarget();
Rect dstRect(bounds.x, bounds.y, bounds.width, bounds.height);
Rect srcRect(0, 0, bounds.width, bounds.height);
gfx::Matrix rotate =
ComputeTransformForUnRotation(outerBounds.ToUnknownRect(),
mTargetRotation);
gfx::Matrix oldMatrix = dt->GetTransform();
dt->SetTransform(rotate * oldMatrix);
dt->DrawSurface(surf, dstRect, srcRect,
DrawSurfaceOptions(),
DrawOptions(1.0f, CompositionOp::OP_OVER));
dt->SetTransform(oldMatrix);
}
mForwarder->DestroySurfaceDescriptor(&outSnapshot);
}
}
}
mShadowTarget = nullptr;
}
LayoutDeviceIntRect
ContentCache::TextRectArray::GetUnionRect(uint32_t aOffset,
uint32_t aLength) const
{
LayoutDeviceIntRect rect;
if (!InRange(aOffset, aLength)) {
return rect;
}
for (uint32_t i = 0; i < aLength; i++) {
rect = rect.Union(mRects[aOffset - mStart + i]);
}
return rect;
}
bool
ContentCacheInParent::GetCaretRect(uint32_t aOffset,
LayoutDeviceIntRect& aCaretRect) const
{
MOZ_LOG(sContentCacheLog, LogLevel::Info,
("ContentCacheInParent: 0x%p GetCaretRect(aOffset=%u), "
"mCaret={ mOffset=%u, mRect=%s, IsValid()=%s }, mTextRectArray={ "
"mStart=%u, mRects.Length()=%u }, mSelection={ mAnchor=%u, mFocus=%u, "
"mWritingMode=%s, mAnchorCharRect=%s, mFocusCharRect=%s }, "
"mFirstCharRect=%s",
this, aOffset, mCaret.mOffset, GetRectText(mCaret.mRect).get(),
GetBoolName(mCaret.IsValid()), mTextRectArray.mStart,
mTextRectArray.mRects.Length(), mSelection.mAnchor, mSelection.mFocus,
GetWritingModeName(mSelection.mWritingMode).get(),
GetRectText(mSelection.mAnchorCharRect).get(),
GetRectText(mSelection.mFocusCharRect).get(),
GetRectText(mFirstCharRect).get()));
if (mCaret.IsValid() && mCaret.mOffset == aOffset) {
aCaretRect = mCaret.mRect;
return true;
}
// Guess caret rect from the text rect if it's stored.
if (!GetTextRect(aOffset, aCaretRect)) {
// There might be previous character rect in the cache. If so, we can
// guess the caret rect with it.
if (!aOffset || !GetTextRect(aOffset - 1, aCaretRect)) {
aCaretRect.SetEmpty();
return false;
}
if (mSelection.mWritingMode.IsVertical()) {
aCaretRect.y = aCaretRect.YMost();
} else {
// XXX bidi-unaware.
aCaretRect.x = aCaretRect.XMost();
}
}
// XXX This is not bidi aware because we don't cache each character's
// direction. However, this is usually used by IME, so, assuming the
// character is in LRT context must not cause any problem.
if (mSelection.mWritingMode.IsVertical()) {
aCaretRect.height = mCaret.IsValid() ? mCaret.mRect.height : 1;
} else {
aCaretRect.width = mCaret.IsValid() ? mCaret.mRect.width : 1;
}
return true;
}
bool
ContentCacheInChild::QueryCharRect(nsIWidget* aWidget,
uint32_t aOffset,
LayoutDeviceIntRect& aCharRect) const
{
aCharRect.SetEmpty();
nsEventStatus status = nsEventStatus_eIgnore;
WidgetQueryContentEvent textRect(true, NS_QUERY_TEXT_RECT, aWidget);
textRect.InitForQueryTextRect(aOffset, 1);
aWidget->DispatchEvent(&textRect, status);
if (NS_WARN_IF(!textRect.mSucceeded)) {
return false;
}
aCharRect = textRect.mReply.mRect;
// Guarantee the rect is not empty.
if (NS_WARN_IF(!aCharRect.height)) {
aCharRect.height = 1;
}
if (NS_WARN_IF(!aCharRect.width)) {
aCharRect.width = 1;
}
return true;
}
LayoutDeviceIntRect
ContentCache::TextRectArray::GetUnionRectAsFarAsPossible(
uint32_t aOffset,
uint32_t aLength) const
{
LayoutDeviceIntRect rect;
if (!IsOverlappingWith(aOffset, aLength)) {
return rect;
}
uint32_t startOffset = std::max(aOffset, mStart);
uint32_t endOffset = std::min(aOffset + aLength, EndOffset());
for (uint32_t i = 0; i < endOffset - startOffset; i++) {
rect = rect.Union(mRects[startOffset - mStart + i]);
}
return rect;
}
nsresult
PuppetWidget::ConfigureChildren(const nsTArray<Configuration>& aConfigurations)
{
for (uint32_t i = 0; i < aConfigurations.Length(); ++i) {
const Configuration& configuration = aConfigurations[i];
PuppetWidget* w = static_cast<PuppetWidget*>(configuration.mChild.get());
NS_ASSERTION(w->GetParent() == this,
"Configured widget is not a child");
w->SetWindowClipRegion(configuration.mClipRegion, true);
LayoutDeviceIntRect bounds = w->GetBounds();
if (bounds.Size() != configuration.mBounds.Size()) {
w->Resize(configuration.mBounds.x, configuration.mBounds.y,
configuration.mBounds.width, configuration.mBounds.height,
true);
} else if (bounds.TopLeft() != configuration.mBounds.TopLeft()) {
w->Move(configuration.mBounds.x, configuration.mBounds.y);
}
w->SetWindowClipRegion(configuration.mClipRegion, false);
}
return NS_OK;
}
bool
ContentCacheInParent::GetUnionTextRects(
uint32_t aOffset,
uint32_t aLength,
LayoutDeviceIntRect& aUnionTextRect) const
{
MOZ_LOG(sContentCacheLog, LogLevel::Info,
("ContentCacheInParent: 0x%p GetUnionTextRects(aOffset=%u, "
"aLength=%u), mTextRectArray={ mStart=%u, mRects.Length()=%u }, "
"mSelection={ mAnchor=%u, mFocus=%u }",
this, aOffset, aLength, mTextRectArray.mStart,
mTextRectArray.mRects.Length(), mSelection.mAnchor, mSelection.mFocus));
CheckedInt<uint32_t> endOffset =
CheckedInt<uint32_t>(aOffset) + aLength;
if (!endOffset.isValid()) {
return false;
}
if (!mSelection.Collapsed() &&
aOffset == mSelection.StartOffset() && aLength == mSelection.Length()) {
NS_WARN_IF(mSelection.mRect.IsEmpty());
aUnionTextRect = mSelection.mRect;
return !aUnionTextRect.IsEmpty();
}
if (aLength == 1) {
if (!aOffset) {
NS_WARN_IF(mFirstCharRect.IsEmpty());
aUnionTextRect = mFirstCharRect;
return !aUnionTextRect.IsEmpty();
}
if (aOffset == mSelection.mAnchor) {
NS_WARN_IF(mSelection.mAnchorCharRect.IsEmpty());
aUnionTextRect = mSelection.mAnchorCharRect;
return !aUnionTextRect.IsEmpty();
}
if (aOffset == mSelection.mFocus) {
NS_WARN_IF(mSelection.mFocusCharRect.IsEmpty());
aUnionTextRect = mSelection.mFocusCharRect;
return !aUnionTextRect.IsEmpty();
}
}
// Even if some text rects are not cached of the queried range,
// we should return union rect when the first character's rect is cached
// since the first character rect is important and the others are not so
// in most cases.
if (!aOffset && aOffset != mSelection.mAnchor &&
aOffset != mSelection.mFocus && !mTextRectArray.InRange(aOffset)) {
// The first character rect isn't cached.
return false;
}
if (mTextRectArray.IsOverlappingWith(aOffset, aLength)) {
aUnionTextRect =
mTextRectArray.GetUnionRectAsFarAsPossible(aOffset, aLength);
} else {
aUnionTextRect.SetEmpty();
}
if (!aOffset) {
aUnionTextRect = aUnionTextRect.Union(mFirstCharRect);
}
if (aOffset <= mSelection.mAnchor && mSelection.mAnchor < endOffset.value()) {
aUnionTextRect = aUnionTextRect.Union(mSelection.mAnchorCharRect);
}
if (aOffset <= mSelection.mFocus && mSelection.mFocus < endOffset.value()) {
aUnionTextRect = aUnionTextRect.Union(mSelection.mFocusCharRect);
}
return !aUnionTextRect.IsEmpty();
}
/**
* @param aDamagedRegion this region, relative to aWidgetView, is invalidated in
* every widget child of aWidgetView, plus aWidgetView's own widget
*/
void
nsViewManager::InvalidateWidgetArea(nsView *aWidgetView,
const nsRegion &aDamagedRegion)
{
NS_ASSERTION(aWidgetView->GetViewManager() == this,
"InvalidateWidgetArea called on view we don't own");
nsIWidget* widget = aWidgetView->GetWidget();
#if 0
nsRect dbgBounds = aDamagedRegion.GetBounds();
printf("InvalidateWidgetArea view:%X (%d) widget:%X region: %d, %d, %d, %d\n",
aWidgetView, aWidgetView->IsAttachedToTopLevel(),
widget, dbgBounds.x, dbgBounds.y, dbgBounds.width, dbgBounds.height);
#endif
// If the widget is hidden, it don't cover nothing
if (widget && !widget->IsVisible()) {
return;
}
if (!widget) {
// The root view or a scrolling view might not have a widget
// (for example, during printing). We get here when we scroll
// during printing to show selected options in a listbox, for example.
return;
}
// Update all child widgets with the damage. In the process,
// accumulate the union of all the child widget areas, or at least
// some subset of that.
nsRegion children;
if (widget->GetTransparencyMode() != eTransparencyTransparent) {
for (nsIWidget* childWidget = widget->GetFirstChild();
childWidget;
childWidget = childWidget->GetNextSibling()) {
nsView* view = nsView::GetViewFor(childWidget);
NS_ASSERTION(view != aWidgetView, "will recur infinitely");
nsWindowType type = childWidget->WindowType();
if (view && childWidget->IsVisible() && type != eWindowType_popup) {
NS_ASSERTION(childWidget->IsPlugin(),
"Only plugin or popup widgets can be children!");
// We do not need to invalidate in plugin widgets, but we should
// exclude them from the invalidation region IF we're not on
// Mac. On Mac we need to draw under plugin widgets, because
// plugin widgets are basically invisible
#ifndef XP_MACOSX
// GetBounds should compensate for chrome on a toplevel widget
LayoutDeviceIntRect bounds;
childWidget->GetBounds(bounds);
nsTArray<LayoutDeviceIntRect> clipRects;
childWidget->GetWindowClipRegion(&clipRects);
for (uint32_t i = 0; i < clipRects.Length(); ++i) {
nsRect rr = LayoutDeviceIntRect::ToAppUnits(
clipRects[i] + bounds.TopLeft(), AppUnitsPerDevPixel());
children.Or(children, rr - aWidgetView->ViewToWidgetOffset());
children.SimplifyInward(20);
}
#endif
}
}
}
nsRegion leftOver;
leftOver.Sub(aDamagedRegion, children);
if (!leftOver.IsEmpty()) {
for (auto iter = leftOver.RectIter(); !iter.Done(); iter.Next()) {
LayoutDeviceIntRect bounds = ViewToWidget(aWidgetView, iter.Get());
widget->Invalidate(bounds);
}
}
}
NS_METHOD
PuppetWidget::GetScreenBounds(LayoutDeviceIntRect& aRect) {
aRect.MoveTo(WidgetToScreenOffset());
aRect.SizeTo(LayoutDeviceIntSize::FromUnknownSize(mBounds.Size()));
return NS_OK;
}
void
ClientLayerManager::BeginTransactionWithTarget(gfxContext* aTarget)
{
mInTransaction = true;
mTransactionStart = TimeStamp::Now();
#ifdef MOZ_LAYERS_HAVE_LOG
MOZ_LAYERS_LOG(("[----- BeginTransaction"));
Log();
#endif
NS_ASSERTION(!InTransaction(), "Nested transactions not allowed");
mPhase = PHASE_CONSTRUCTION;
MOZ_ASSERT(mKeepAlive.IsEmpty(), "uncommitted txn?");
RefPtr<gfxContext> targetContext = aTarget;
// If the last transaction was incomplete (a failed DoEmptyTransaction),
// don't signal a new transaction to ShadowLayerForwarder. Carry on adding
// to the previous transaction.
dom::ScreenOrientationInternal orientation;
if (dom::TabChild* window = mWidget->GetOwningTabChild()) {
orientation = window->GetOrientation();
} else {
hal::ScreenConfiguration currentConfig;
hal::GetCurrentScreenConfiguration(¤tConfig);
orientation = currentConfig.orientation();
}
LayoutDeviceIntRect targetBounds = mWidget->GetNaturalBounds();
targetBounds.x = targetBounds.y = 0;
mForwarder->BeginTransaction(targetBounds.ToUnknownRect(), mTargetRotation,
orientation);
// If we're drawing on behalf of a context with async pan/zoom
// enabled, then the entire buffer of painted layers might be
// composited (including resampling) asynchronously before we get
// a chance to repaint, so we have to ensure that it's all valid
// and not rotated.
//
// Desktop does not support async zoom yet, so we ignore this for those
// platforms.
#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK) || defined(MOZ_WIDGET_UIKIT)
if (mWidget && mWidget->GetOwningTabChild()) {
mCompositorMightResample = AsyncPanZoomEnabled();
}
#endif
// If we have a non-default target, we need to let our shadow manager draw
// to it. This will happen at the end of the transaction.
if (aTarget && XRE_IsParentProcess()) {
mShadowTarget = aTarget;
} else {
NS_ASSERTION(!aTarget,
"Content-process ClientLayerManager::BeginTransactionWithTarget not supported");
}
// If this is a new paint, increment the paint sequence number.
if (!mIsRepeatTransaction) {
// Increment the paint sequence number even if test logging isn't
// enabled in this process; it may be enabled in the parent process,
// and the parent process expects unique sequence numbers.
++mPaintSequenceNumber;
if (gfxPrefs::APZTestLoggingEnabled()) {
mApzTestData.StartNewPaint(mPaintSequenceNumber);
}
}
}
bool
ClientLayerManager::BeginTransactionWithTarget(gfxContext* aTarget)
{
// Wait for any previous async paints to complete before starting to paint again.
GetCompositorBridgeChild()->FlushAsyncPaints();
MOZ_ASSERT(mForwarder, "ClientLayerManager::BeginTransaction without forwarder");
if (!mForwarder->IPCOpen()) {
gfxCriticalNote << "ClientLayerManager::BeginTransaction with IPC channel down. GPU process may have died.";
return false;
}
if (XRE_IsContentProcess() &&
mForwarder->DeviceCanReset() &&
mDeviceResetSequenceNumber != CompositorBridgeChild::Get()->DeviceResetSequenceNumber())
{
// The compositor has informed this process that a device reset occurred,
// but it has not finished informing each TabChild of its new
// TextureFactoryIdentifier. Until then, it's illegal to paint. Note that
// it is also illegal to request a new TIF synchronously, because we're
// not guaranteed the UI process has finished acquiring new compositors
// for each widget.
//
// Note that we only do this for accelerated backends, since we do not
// perform resets on basic compositors.
gfxCriticalNote << "Discarding a paint since a device reset has not yet been acknowledged.";
return false;
}
mInTransaction = true;
mTransactionStart = TimeStamp::Now();
#ifdef MOZ_LAYERS_HAVE_LOG
MOZ_LAYERS_LOG(("[----- BeginTransaction"));
Log();
#endif
NS_ASSERTION(!InTransaction(), "Nested transactions not allowed");
mPhase = PHASE_CONSTRUCTION;
MOZ_ASSERT(mKeepAlive.IsEmpty(), "uncommitted txn?");
// If the last transaction was incomplete (a failed DoEmptyTransaction),
// don't signal a new transaction to ShadowLayerForwarder. Carry on adding
// to the previous transaction.
dom::ScreenOrientationInternal orientation;
if (dom::TabChild* window = mWidget->GetOwningTabChild()) {
orientation = window->GetOrientation();
} else {
hal::ScreenConfiguration currentConfig;
hal::GetCurrentScreenConfiguration(¤tConfig);
orientation = currentConfig.orientation();
}
LayoutDeviceIntRect targetBounds = mWidget->GetNaturalBounds();
targetBounds.x = targetBounds.y = 0;
mForwarder->BeginTransaction(targetBounds.ToUnknownRect(), mTargetRotation,
orientation);
// If we're drawing on behalf of a context with async pan/zoom
// enabled, then the entire buffer of painted layers might be
// composited (including resampling) asynchronously before we get
// a chance to repaint, so we have to ensure that it's all valid
// and not rotated.
//
// Desktop does not support async zoom yet, so we ignore this for those
// platforms.
#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_UIKIT)
if (mWidget && mWidget->GetOwningTabChild()) {
mCompositorMightResample = AsyncPanZoomEnabled();
}
#endif
// If we have a non-default target, we need to let our shadow manager draw
// to it. This will happen at the end of the transaction.
if (aTarget && XRE_IsParentProcess()) {
mShadowTarget = aTarget;
} else {
NS_ASSERTION(!aTarget,
"Content-process ClientLayerManager::BeginTransactionWithTarget not supported");
}
// If this is a new paint, increment the paint sequence number.
if (!mIsRepeatTransaction) {
// Increment the paint sequence number even if test logging isn't
// enabled in this process; it may be enabled in the parent process,
// and the parent process expects unique sequence numbers.
++mPaintSequenceNumber;
if (gfxPrefs::APZTestLoggingEnabled()) {
mApzTestData.StartNewPaint(mPaintSequenceNumber);
}
}
return true;
}
void nsView::DoResetWidgetBounds(bool aMoveOnly,
bool aInvalidateChangedSize) {
// The geometry of a root view's widget is controlled externally,
// NOT by sizing or positioning the view
if (mViewManager->GetRootView() == this) {
return;
}
NS_PRECONDITION(mWindow, "Why was this called??");
// Hold this ref to make sure it stays alive.
nsCOMPtr<nsIWidget> widget = mWindow;
// Stash a copy of these and use them so we can handle this being deleted (say
// from sync painting/flushing from Show/Move/Resize on the widget).
LayoutDeviceIntRect newBounds;
RefPtr<nsDeviceContext> dx = mViewManager->GetDeviceContext();
nsWindowType type = widget->WindowType();
LayoutDeviceIntRect curBounds;
widget->GetClientBounds(curBounds);
bool invisiblePopup = type == eWindowType_popup &&
((curBounds.IsEmpty() && mDimBounds.IsEmpty()) ||
mVis == nsViewVisibility_kHide);
if (invisiblePopup) {
// We're going to hit the early exit below, avoid calling CalcWidgetBounds.
} else {
newBounds = CalcWidgetBounds(type);
}
bool curVisibility = widget->IsVisible();
bool newVisibility = IsEffectivelyVisible();
if (curVisibility && !newVisibility) {
widget->Show(false);
}
if (invisiblePopup) {
// Don't manipulate empty or hidden popup widgets. For example there's no
// point moving hidden comboboxes around, or doing X server roundtrips
// to compute their true screen position. This could mean that WidgetToScreen
// operations on these widgets don't return up-to-date values, but popup
// positions aren't reliable anyway because of correction to be on or off-screen.
return;
}
bool changedPos = curBounds.TopLeft() != newBounds.TopLeft();
bool changedSize = curBounds.Size() != newBounds.Size();
// Child views are never attached to top level widgets, this is safe.
// Coordinates are converted to desktop pixels for window Move/Resize APIs,
// because of the potential for device-pixel coordinate spaces for mixed
// hidpi/lodpi screens to overlap each other and result in bad placement
// (bug 814434).
DesktopToLayoutDeviceScale scale = widget->GetDesktopToDeviceScale();
#ifdef XP_MACOSX
// On OS X, this can be called before Cocoa has updated the backing scale
// factor of our widget, in which case |scale| is wrong here. To work
// around this, we check the device context and override |scale| if it
// doesn't match. (This happens when a popup window that has previously
// been created and hidden is being moved between hi- and lo-dpi screens,
// but is not currently visible; Cocoa doesn't notify it of the scale
// factor change until it gets shown on the new screen, which is too late
// for us because we'll have already done the computations involving scale
// here to move/size it.)
// It might be better to avoid this by keeping calculations such as
// CalcWidgetBounds entirely in appUnits, rather than using device pixels,
// but that seems like a more extensive and potentially risky change.
int32_t appPerDev = dx->AppUnitsPerDevPixelAtUnitFullZoom();
if (NSToIntRound(60.0 / scale.scale) != appPerDev) {
scale = DesktopToLayoutDeviceScale(60.0 / appPerDev);
}
#endif
DesktopRect deskRect = newBounds / scale;
if (changedPos) {
if (changedSize && !aMoveOnly) {
widget->ResizeClient(deskRect.x, deskRect.y,
deskRect.width, deskRect.height,
aInvalidateChangedSize);
} else {
widget->MoveClient(deskRect.x, deskRect.y);
}
} else {
if (changedSize && !aMoveOnly) {
widget->ResizeClient(deskRect.width, deskRect.height,
aInvalidateChangedSize);
} // else do nothing!
}
if (!curVisibility && newVisibility) {
widget->Show(true);
}
}
void nsView::DoResetWidgetBounds(bool aMoveOnly,
bool aInvalidateChangedSize) {
// The geometry of a root view's widget is controlled externally,
// NOT by sizing or positioning the view
if (mViewManager->GetRootView() == this) {
return;
}
NS_PRECONDITION(mWindow, "Why was this called??");
// Hold this ref to make sure it stays alive.
nsCOMPtr<nsIWidget> widget = mWindow;
// Stash a copy of these and use them so we can handle this being deleted (say
// from sync painting/flushing from Show/Move/Resize on the widget).
LayoutDeviceIntRect newBounds;
RefPtr<nsDeviceContext> dx = mViewManager->GetDeviceContext();
nsWindowType type = widget->WindowType();
LayoutDeviceIntRect curBounds;
widget->GetClientBounds(curBounds);
bool invisiblePopup = type == eWindowType_popup &&
((curBounds.IsEmpty() && mDimBounds.IsEmpty()) ||
mVis == nsViewVisibility_kHide);
if (invisiblePopup) {
// We're going to hit the early exit below, avoid calling CalcWidgetBounds.
} else {
newBounds = LayoutDeviceIntRect::FromUnknownRect(CalcWidgetBounds(type));
}
bool curVisibility = widget->IsVisible();
bool newVisibility = IsEffectivelyVisible();
if (curVisibility && !newVisibility) {
widget->Show(false);
}
if (invisiblePopup) {
// Don't manipulate empty or hidden popup widgets. For example there's no
// point moving hidden comboboxes around, or doing X server roundtrips
// to compute their true screen position. This could mean that WidgetToScreen
// operations on these widgets don't return up-to-date values, but popup
// positions aren't reliable anyway because of correction to be on or off-screen.
return;
}
bool changedPos = curBounds.TopLeft() != newBounds.TopLeft();
bool changedSize = curBounds.Size() != newBounds.Size();
// Child views are never attached to top level widgets, this is safe.
// Coordinates are converted to display pixels for window Move/Resize APIs,
// because of the potential for device-pixel coordinate spaces for mixed
// hidpi/lodpi screens to overlap each other and result in bad placement
// (bug 814434).
double invScale;
// Bug 861270: for correct widget manipulation at arbitrary scale factors,
// prefer to base scaling on widget->GetDefaultScale(). But only do this if
// it matches the view manager's device context scale after allowing for the
// quantization to app units, because of OS X multiscreen issues (where the
// only two scales are 1.0 or 2.0, and so the quantization doesn't actually
// cause problems anyhow).
// In the case of a mismatch, fall back to scaling based on the dev context's
// AppUnitsPerDevPixelAtUnitFullZoom value. On platforms where the device-pixel
// scale is uniform across all displays (currently all except OS X), we'll
// always use the precise value from mWindow->GetDefaultScale here.
CSSToLayoutDeviceScale scale = widget->GetDefaultScale();
if (NSToIntRound(60.0 / scale.scale) == dx->AppUnitsPerDevPixelAtUnitFullZoom()) {
invScale = 1.0 / scale.scale;
} else {
invScale = dx->AppUnitsPerDevPixelAtUnitFullZoom() / 60.0;
}
if (changedPos) {
if (changedSize && !aMoveOnly) {
widget->ResizeClient(newBounds.x * invScale,
newBounds.y * invScale,
newBounds.width * invScale,
newBounds.height * invScale,
aInvalidateChangedSize);
} else {
widget->MoveClient(newBounds.x * invScale,
newBounds.y * invScale);
}
} else {
if (changedSize && !aMoveOnly) {
widget->ResizeClient(newBounds.width * invScale,
newBounds.height * invScale,
aInvalidateChangedSize);
} // else do nothing!
}
if (!curVisibility && newVisibility) {
widget->Show(true);
}
}
nsresult
nsTitleBarFrame::HandleEvent(nsPresContext* aPresContext,
WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
NS_ENSURE_ARG_POINTER(aEventStatus);
if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
return NS_OK;
}
bool doDefault = true;
switch (aEvent->mMessage) {
case eMouseDown: {
if (aEvent->AsMouseEvent()->button == WidgetMouseEvent::eLeftButton) {
// titlebar has no effect in non-chrome shells
nsCOMPtr<nsIDocShellTreeItem> dsti = aPresContext->GetDocShell();
if (dsti) {
if (dsti->ItemType() == nsIDocShellTreeItem::typeChrome) {
// we're tracking.
mTrackingMouseMove = true;
// start capture.
nsIPresShell::SetCapturingContent(GetContent(), CAPTURE_IGNOREALLOWED);
// remember current mouse coordinates.
mLastPoint = aEvent->mRefPoint;
}
}
*aEventStatus = nsEventStatus_eConsumeNoDefault;
doDefault = false;
}
}
break;
case eMouseUp: {
if (mTrackingMouseMove &&
aEvent->AsMouseEvent()->button == WidgetMouseEvent::eLeftButton) {
// we're done tracking.
mTrackingMouseMove = false;
// end capture
nsIPresShell::SetCapturingContent(nullptr, 0);
*aEventStatus = nsEventStatus_eConsumeNoDefault;
doDefault = false;
}
}
break;
case eMouseMove: {
if(mTrackingMouseMove)
{
LayoutDeviceIntPoint nsMoveBy = aEvent->mRefPoint - mLastPoint;
nsIFrame* parent = GetParent();
while (parent) {
nsMenuPopupFrame* popupFrame = do_QueryFrame(parent);
if (popupFrame)
break;
parent = parent->GetParent();
}
// if the titlebar is in a popup, move the popup frame, otherwise
// move the widget associated with the window
if (parent) {
nsMenuPopupFrame* menuPopupFrame = static_cast<nsMenuPopupFrame*>(parent);
nsCOMPtr<nsIWidget> widget = menuPopupFrame->GetWidget();
LayoutDeviceIntRect bounds = widget->GetScreenBounds();
CSSPoint cssPos = (bounds.TopLeft() + nsMoveBy)
/ aPresContext->CSSToDevPixelScale();
menuPopupFrame->MoveTo(RoundedToInt(cssPos), false);
}
else {
nsIPresShell* presShell = aPresContext->PresShell();
nsPIDOMWindowOuter *window = presShell->GetDocument()->GetWindow();
if (window) {
window->MoveBy(nsMoveBy.x, nsMoveBy.y);
}
}
*aEventStatus = nsEventStatus_eConsumeNoDefault;
doDefault = false;
}
}
break;
case eMouseClick: {
WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent();
if (mouseEvent->IsLeftClickEvent()) {
MouseClicked(mouseEvent);
}
break;
}
default:
break;
}
if ( doDefault )
return nsBoxFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
else
return NS_OK;
}
nsresult
nsResizerFrame::HandleEvent(nsPresContext* aPresContext,
WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
NS_ENSURE_ARG_POINTER(aEventStatus);
if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
return NS_OK;
}
nsWeakFrame weakFrame(this);
bool doDefault = true;
switch (aEvent->mMessage) {
case eTouchStart:
case eMouseDown: {
if (aEvent->mClass == eTouchEventClass ||
(aEvent->mClass == eMouseEventClass &&
aEvent->AsMouseEvent()->button == WidgetMouseEvent::eLeftButton)) {
nsCOMPtr<nsIBaseWindow> window;
nsIPresShell* presShell = aPresContext->GetPresShell();
nsIContent* contentToResize =
GetContentToResize(presShell, getter_AddRefs(window));
if (contentToResize) {
nsIFrame* frameToResize = contentToResize->GetPrimaryFrame();
if (!frameToResize)
break;
// cache the content rectangle for the frame to resize
// GetScreenRectInAppUnits returns the border box rectangle, so
// adjust to get the desired content rectangle.
nsRect rect = frameToResize->GetScreenRectInAppUnits();
switch (frameToResize->StylePosition()->mBoxSizing) {
case StyleBoxSizing::Content:
rect.Deflate(frameToResize->GetUsedPadding());
MOZ_FALLTHROUGH;
case StyleBoxSizing::Padding:
rect.Deflate(frameToResize->GetUsedBorder());
MOZ_FALLTHROUGH;
case StyleBoxSizing::Border:
// nothing
break;
}
mMouseDownRect =
LayoutDeviceIntRect::FromAppUnitsToNearest(rect, aPresContext->AppUnitsPerDevPixel());
doDefault = false;
}
else {
// If there is no window, then resizing isn't allowed.
if (!window)
break;
doDefault = false;
// ask the widget implementation to begin a resize drag if it can
Direction direction = GetDirection();
nsresult rv = aEvent->mWidget->BeginResizeDrag(aEvent,
direction.mHorizontal, direction.mVertical);
// for native drags, don't set the fields below
if (rv != NS_ERROR_NOT_IMPLEMENTED)
break;
// if there's no native resize support, we need to do window
// resizing ourselves
window->GetPositionAndSize(&mMouseDownRect.x, &mMouseDownRect.y,
&mMouseDownRect.width, &mMouseDownRect.height);
}
// remember current mouse coordinates
LayoutDeviceIntPoint refPoint;
if (!GetEventPoint(aEvent, refPoint))
return NS_OK;
mMouseDownPoint = refPoint + aEvent->mWidget->WidgetToScreenOffset();
// we're tracking
mTrackingMouseMove = true;
nsIPresShell::SetCapturingContent(GetContent(), CAPTURE_IGNOREALLOWED);
}
}
break;
case eTouchEnd:
case eMouseUp: {
if (aEvent->mClass == eTouchEventClass ||
(aEvent->mClass == eMouseEventClass &&
aEvent->AsMouseEvent()->button == WidgetMouseEvent::eLeftButton)) {
// we're done tracking.
mTrackingMouseMove = false;
nsIPresShell::SetCapturingContent(nullptr, 0);
doDefault = false;
}
}
break;
case eTouchMove:
case eMouseMove: {
if (mTrackingMouseMove)
{
nsCOMPtr<nsIBaseWindow> window;
nsIPresShell* presShell = aPresContext->GetPresShell();
nsCOMPtr<nsIContent> contentToResize =
GetContentToResize(presShell, getter_AddRefs(window));
// check if the returned content really is a menupopup
nsMenuPopupFrame* menuPopupFrame = nullptr;
if (contentToResize) {
menuPopupFrame = do_QueryFrame(contentToResize->GetPrimaryFrame());
}
// both MouseMove and direction are negative when pointing to the
// top and left, and positive when pointing to the bottom and right
// retrieve the offset of the mousemove event relative to the mousedown.
// The difference is how much the resize needs to be
LayoutDeviceIntPoint refPoint;
if (!GetEventPoint(aEvent, refPoint))
return NS_OK;
LayoutDeviceIntPoint screenPoint =
refPoint + aEvent->mWidget->WidgetToScreenOffset();
LayoutDeviceIntPoint mouseMove(screenPoint - mMouseDownPoint);
// Determine which direction to resize by checking the dir attribute.
// For windows and menus, ensure that it can be resized in that direction.
Direction direction = GetDirection();
if (window || menuPopupFrame) {
if (menuPopupFrame) {
menuPopupFrame->CanAdjustEdges(
(direction.mHorizontal == -1) ? NS_SIDE_LEFT : NS_SIDE_RIGHT,
(direction.mVertical == -1) ? NS_SIDE_TOP : NS_SIDE_BOTTOM, mouseMove);
}
}
else if (!contentToResize) {
break; // don't do anything if there's nothing to resize
}
LayoutDeviceIntRect rect = mMouseDownRect;
// Check if there are any size constraints on this window.
widget::SizeConstraints sizeConstraints;
if (window) {
nsCOMPtr<nsIWidget> widget;
window->GetMainWidget(getter_AddRefs(widget));
sizeConstraints = widget->GetSizeConstraints();
}
AdjustDimensions(&rect.x, &rect.width, sizeConstraints.mMinSize.width,
sizeConstraints.mMaxSize.width, mouseMove.x, direction.mHorizontal);
AdjustDimensions(&rect.y, &rect.height, sizeConstraints.mMinSize.height,
sizeConstraints.mMaxSize.height, mouseMove.y, direction.mVertical);
// Don't allow resizing a window or a popup past the edge of the screen,
// so adjust the rectangle to fit within the available screen area.
if (window) {
nsCOMPtr<nsIScreen> screen;
nsCOMPtr<nsIScreenManager> sm(do_GetService("@mozilla.org/gfx/screenmanager;1"));
if (sm) {
nsIntRect frameRect = GetScreenRect();
// ScreenForRect requires display pixels, so scale from device pix
double scale;
window->GetUnscaledDevicePixelsPerCSSPixel(&scale);
sm->ScreenForRect(NSToIntRound(frameRect.x / scale),
NSToIntRound(frameRect.y / scale), 1, 1,
getter_AddRefs(screen));
if (screen) {
LayoutDeviceIntRect screenRect;
screen->GetRect(&screenRect.x, &screenRect.y,
&screenRect.width, &screenRect.height);
rect.IntersectRect(rect, screenRect);
}
}
}
else if (menuPopupFrame) {
nsRect frameRect = menuPopupFrame->GetScreenRectInAppUnits();
nsIFrame* rootFrame = aPresContext->PresShell()->FrameManager()->GetRootFrame();
nsRect rootScreenRect = rootFrame->GetScreenRectInAppUnits();
nsPopupLevel popupLevel = menuPopupFrame->PopupLevel();
int32_t appPerDev = aPresContext->AppUnitsPerDevPixel();
LayoutDeviceIntRect screenRect = menuPopupFrame->GetConstraintRect
(LayoutDeviceIntRect::FromAppUnitsToNearest(frameRect, appPerDev),
// round using ...ToInside as it's better to be a pixel too small
// than be too large. If the popup is too large it could get flipped
// to the opposite side of the anchor point while resizing.
LayoutDeviceIntRect::FromAppUnitsToInside(rootScreenRect, appPerDev),
popupLevel);
rect.IntersectRect(rect, screenRect);
}
if (contentToResize) {
// convert the rectangle into css pixels. When changing the size in a
// direction, don't allow the new size to be less that the resizer's
// size. This ensures that content isn't resized too small as to make
// the resizer invisible.
nsRect appUnitsRect = ToAppUnits(rect.ToUnknownRect(), aPresContext->AppUnitsPerDevPixel());
if (appUnitsRect.width < mRect.width && mouseMove.x)
appUnitsRect.width = mRect.width;
if (appUnitsRect.height < mRect.height && mouseMove.y)
appUnitsRect.height = mRect.height;
nsIntRect cssRect = appUnitsRect.ToInsidePixels(nsPresContext::AppUnitsPerCSSPixel());
LayoutDeviceIntRect oldRect;
nsWeakFrame weakFrame(menuPopupFrame);
if (menuPopupFrame) {
nsCOMPtr<nsIWidget> widget = menuPopupFrame->GetWidget();
if (widget)
widget->GetScreenBounds(oldRect);
// convert the new rectangle into outer window coordinates
LayoutDeviceIntPoint clientOffset = widget->GetClientOffset();
rect.x -= clientOffset.x;
rect.y -= clientOffset.y;
}
SizeInfo sizeInfo, originalSizeInfo;
sizeInfo.width.AppendInt(cssRect.width);
sizeInfo.height.AppendInt(cssRect.height);
ResizeContent(contentToResize, direction, sizeInfo, &originalSizeInfo);
MaybePersistOriginalSize(contentToResize, originalSizeInfo);
// Move the popup to the new location unless it is anchored, since
// the position shouldn't change. nsMenuPopupFrame::SetPopupPosition
// will instead ensure that the popup's position is anchored at the
// right place.
if (weakFrame.IsAlive() &&
(oldRect.x != rect.x || oldRect.y != rect.y) &&
(!menuPopupFrame->IsAnchored() ||
menuPopupFrame->PopupLevel() != ePopupLevelParent)) {
CSSPoint cssPos = rect.TopLeft() / aPresContext->CSSToDevPixelScale();
menuPopupFrame->MoveTo(RoundedToInt(cssPos), true);
}
}
else {
window->SetPositionAndSize(rect.x, rect.y, rect.width, rect.height, true); // do the repaint.
}
doDefault = false;
}
}
break;
case eMouseClick: {
WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent();
if (mouseEvent->IsLeftClickEvent()) {
MouseClicked(mouseEvent);
}
break;
}
case eMouseDoubleClick:
if (aEvent->AsMouseEvent()->button == WidgetMouseEvent::eLeftButton) {
nsCOMPtr<nsIBaseWindow> window;
nsIPresShell* presShell = aPresContext->GetPresShell();
nsIContent* contentToResize =
GetContentToResize(presShell, getter_AddRefs(window));
if (contentToResize) {
nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(contentToResize->GetPrimaryFrame());
if (menuPopupFrame)
break; // Don't restore original sizing for menupopup frames until
// we handle screen constraints here. (Bug 357725)
RestoreOriginalSize(contentToResize);
}
}
break;
default:
break;
}
if (!doDefault)
*aEventStatus = nsEventStatus_eConsumeNoDefault;
if (doDefault && weakFrame.IsAlive())
return nsTitleBarFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
return NS_OK;
}
LayoutDeviceIntRect nsView::CalcWidgetBounds(nsWindowType aType)
{
int32_t p2a = mViewManager->AppUnitsPerDevPixel();
nsRect viewBounds(mDimBounds);
nsView* parent = GetParent();
nsIWidget* parentWidget = nullptr;
if (parent) {
nsPoint offset;
parentWidget = parent->GetNearestWidget(&offset, p2a);
// make viewBounds be relative to the parent widget, in appunits
viewBounds += offset;
if (parentWidget && aType == eWindowType_popup &&
IsEffectivelyVisible()) {
// put offset into screen coordinates. (based on client area origin)
LayoutDeviceIntPoint screenPoint = parentWidget->WidgetToScreenOffset();
viewBounds += nsPoint(NSIntPixelsToAppUnits(screenPoint.x, p2a),
NSIntPixelsToAppUnits(screenPoint.y, p2a));
}
}
// Compute widget bounds in device pixels
LayoutDeviceIntRect newBounds =
LayoutDeviceIntRect::FromUnknownRect(viewBounds.ToNearestPixels(p2a));
#if defined(XP_MACOSX) || (MOZ_WIDGET_GTK == 3)
// cocoa and GTK round widget coordinates to the nearest global "display
// pixel" integer value. So we avoid fractional display pixel values by
// rounding to the nearest value that won't yield a fractional display pixel.
nsIWidget* widget = parentWidget ? parentWidget : mWindow.get();
uint32_t round;
if (aType == eWindowType_popup && widget &&
((round = widget->RoundsWidgetCoordinatesTo()) > 1)) {
LayoutDeviceIntSize pixelRoundedSize = newBounds.Size();
// round the top left and bottom right to the nearest round pixel
newBounds.x = NSToIntRoundUp(NSAppUnitsToDoublePixels(viewBounds.x, p2a) / round) * round;
newBounds.y = NSToIntRoundUp(NSAppUnitsToDoublePixels(viewBounds.y, p2a) / round) * round;
newBounds.width =
NSToIntRoundUp(NSAppUnitsToDoublePixels(viewBounds.XMost(), p2a) / round) * round - newBounds.x;
newBounds.height =
NSToIntRoundUp(NSAppUnitsToDoublePixels(viewBounds.YMost(), p2a) / round) * round - newBounds.y;
// but if that makes the widget larger then our frame may not paint the
// extra pixels, so reduce the size to the nearest round value
if (newBounds.width > pixelRoundedSize.width) {
newBounds.width -= round;
}
if (newBounds.height > pixelRoundedSize.height) {
newBounds.height -= round;
}
}
#endif
// Compute where the top-left of our widget ended up relative to the parent
// widget, in appunits.
nsPoint roundedOffset(NSIntPixelsToAppUnits(newBounds.x, p2a),
NSIntPixelsToAppUnits(newBounds.y, p2a));
// mViewToWidgetOffset is added to coordinates relative to the view origin
// to get coordinates relative to the widget.
// The view origin, relative to the parent widget, is at
// (mPosX,mPosY) - mDimBounds.TopLeft() + viewBounds.TopLeft().
// Our widget, relative to the parent widget, is roundedOffset.
mViewToWidgetOffset = nsPoint(mPosX, mPosY)
- mDimBounds.TopLeft() + viewBounds.TopLeft() - roundedOffset;
return newBounds;
}