summaryrefslogtreecommitdiffstats
path: root/gfx/layers/ipc/ShadowLayerParent.cpp
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /gfx/layers/ipc/ShadowLayerParent.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/layers/ipc/ShadowLayerParent.cpp')
-rw-r--r--gfx/layers/ipc/ShadowLayerParent.cpp138
1 files changed, 138 insertions, 0 deletions
diff --git a/gfx/layers/ipc/ShadowLayerParent.cpp b/gfx/layers/ipc/ShadowLayerParent.cpp
new file mode 100644
index 000000000..e0898715d
--- /dev/null
+++ b/gfx/layers/ipc/ShadowLayerParent.cpp
@@ -0,0 +1,138 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* 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 "ShadowLayerParent.h"
+#include "Layers.h" // for Layer, ContainerLayer
+#include "nsDebug.h" // for NS_RUNTIMEABORT
+#include "nsISupportsImpl.h" // for Layer::AddRef, etc
+
+#include "mozilla/layers/PaintedLayerComposite.h"
+#include "mozilla/layers/CanvasLayerComposite.h"
+#include "mozilla/layers/ColorLayerComposite.h"
+#include "mozilla/layers/ImageLayerComposite.h"
+#include "mozilla/layers/ContainerLayerComposite.h"
+
+namespace mozilla {
+namespace layers {
+
+ShadowLayerParent::ShadowLayerParent() : mLayer(nullptr)
+{
+}
+
+ShadowLayerParent::~ShadowLayerParent()
+{
+ Disconnect();
+}
+
+void
+ShadowLayerParent::Disconnect()
+{
+ if (mLayer) {
+ mLayer->Disconnect();
+ mLayer = nullptr;
+ }
+}
+
+void
+ShadowLayerParent::Bind(Layer* layer)
+{
+ if (mLayer != layer) {
+ Disconnect();
+ mLayer = layer;
+ }
+}
+
+void
+ShadowLayerParent::Destroy()
+{
+ // It's possible for Destroy() to come in just after this has been
+ // created, but just before the transaction in which Bind() would
+ // have been called. In that case, we'll ignore shadow-layers
+ // transactions from there on and never get a layer here.
+ Disconnect();
+}
+
+ContainerLayerComposite*
+ShadowLayerParent::AsContainerLayerComposite() const
+{
+ return mLayer && mLayer->GetType() == Layer::TYPE_CONTAINER
+ ? static_cast<ContainerLayerComposite*>(mLayer.get())
+ : nullptr;
+}
+
+CanvasLayerComposite*
+ShadowLayerParent::AsCanvasLayerComposite() const
+{
+ return mLayer && mLayer->GetType() == Layer::TYPE_CANVAS
+ ? static_cast<CanvasLayerComposite*>(mLayer.get())
+ : nullptr;
+}
+
+ColorLayerComposite*
+ShadowLayerParent::AsColorLayerComposite() const
+{
+ return mLayer && mLayer->GetType() == Layer::TYPE_COLOR
+ ? static_cast<ColorLayerComposite*>(mLayer.get())
+ : nullptr;
+}
+
+ImageLayerComposite*
+ShadowLayerParent::AsImageLayerComposite() const
+{
+ return mLayer && mLayer->GetType() == Layer::TYPE_IMAGE
+ ? static_cast<ImageLayerComposite*>(mLayer.get())
+ : nullptr;
+}
+
+RefLayerComposite*
+ShadowLayerParent::AsRefLayerComposite() const
+{
+ return mLayer && mLayer->GetType() == Layer::TYPE_REF
+ ? static_cast<RefLayerComposite*>(mLayer.get())
+ : nullptr;
+}
+
+PaintedLayerComposite*
+ShadowLayerParent::AsPaintedLayerComposite() const
+{
+ return mLayer && mLayer->GetType() == Layer::TYPE_PAINTED
+ ? static_cast<PaintedLayerComposite*>(mLayer.get())
+ : nullptr;
+}
+
+void
+ShadowLayerParent::ActorDestroy(ActorDestroyReason why)
+{
+ switch (why) {
+ case AncestorDeletion:
+ NS_RUNTIMEABORT("shadow layer deleted out of order!");
+ return; // unreached
+
+ case Deletion:
+ // See comment near Destroy() above.
+ Disconnect();
+ break;
+
+ case AbnormalShutdown:
+ Disconnect();
+ break;
+
+ case NormalShutdown:
+ // let IPDL-generated code automatically clean up Shmems and so
+ // forth; our channel is disconnected anyway
+ break;
+
+ case FailedConstructor:
+ NS_RUNTIMEABORT("FailedConstructor isn't possible in PLayerTransaction");
+ return; // unreached
+ }
+
+ mLayer = nullptr;
+}
+
+} // namespace layers
+} // namespace mozilla