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Bug 898563. r=botond

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This commit is contained in:
Kartikaya Gupta 2014-02-21 17:58:30 -05:00
parent 5ecc5126a2
commit 5b4e7ef8b9
2 changed files with 18 additions and 0 deletions
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13
gfx/layers/ipc/AsyncPanZoomController.cpp
View File

@ -1743,6 +1743,11 @@ const FrameMetrics& AsyncPanZoomController::GetFrameMetrics() {
}
void AsyncPanZoomController::ZoomToRect(CSSRect aRect) {
if (!aRect.IsFinite()) {
NS_WARNING("ZoomToRect got called with a non-finite rect; ignoring...\n");
return;
}
SetState(ANIMATING_ZOOM);
{
@ -1973,9 +1978,17 @@ void AsyncPanZoomController::TimeoutContentResponse() {
void AsyncPanZoomController::UpdateZoomConstraints(const ZoomConstraints& aConstraints) {
APZC_LOG("%p updating zoom constraints to %d %f %f\n", this, aConstraints.mAllowZoom,
aConstraints.mMinZoom.scale, aConstraints.mMaxZoom.scale);
if (IsFloatNaN(aConstraints.mMinZoom.scale) || IsFloatNaN(aConstraints.mMinZoom.scale)) {
NS_WARNING("APZC received zoom constraints with NaN values; dropping...\n");
return;
}
// inf float values and other bad cases should be sanitized by the code below.
mZoomConstraints.mAllowZoom = aConstraints.mAllowZoom;
mZoomConstraints.mMinZoom = (MIN_ZOOM > aConstraints.mMinZoom ? MIN_ZOOM : aConstraints.mMinZoom);
mZoomConstraints.mMaxZoom = (MAX_ZOOM > aConstraints.mMaxZoom ? aConstraints.mMaxZoom : MAX_ZOOM);
if (mZoomConstraints.mMaxZoom < mZoomConstraints.mMinZoom) {
mZoomConstraints.mMaxZoom = mZoomConstraints.mMinZoom;
}
}
ZoomConstraints

5
layout/ipc/RenderFrameParent.cpp
View File

@ -1133,6 +1133,11 @@ void
RenderFrameParent::ContentReceivedTouch(const ScrollableLayerGuid& aGuid,
bool aPreventDefault)
{
if (aGuid.mLayersId != mLayersId) {
// Guard against bad data from hijacked child processes
NS_ERROR("Unexpected layers id in ContentReceivedTouch; dropping message...");
return;
}
if (GetApzcTreeManager()) {
GetApzcTreeManager()->ContentReceivedTouch(aGuid, aPreventDefault);
}