1 files changed, 46 insertions, 0 deletions
diff --git a/gfx/layers/ipc/PUiCompositorController.ipdl b/gfx/layers/ipc/PUiCompositorController.ipdl
new file mode 100644
index 0000000000..515fcfd023
--- /dev/null
+++ b/gfx/layers/ipc/PUiCompositorController.ipdl
@@ -0,0 +1,46 @@
+/* -*- 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/. */
+
+using CSSRect from "Units.h";
+using CSSToScreenScale from "Units.h";
+using ScreenIntSize from "Units.h";
+using ScreenPoint from "Units.h";
+
+include "mozilla/GfxMessageUtils.h";
+
+namespace mozilla {
+namespace layers {
+
+/**
+ * The PUiCompositorController protocol is used to pause and resume the
+ * compositor from the UI thread. Primarily used on Android to coordinate registering and
+ * releasing the surface with the compositor.
+ */
+sync protocol PUiCompositorController
+{
+
+parent:
+  // Pause/resume the compositor. These are intended to be used on mobile, when
+  // the compositor needs to pause/resume in lockstep with the application.
+  sync Pause();
+  sync Resume();
+  sync ResumeAndResize(int32_t aX, int32_t aY, int32_t aWidth, int32_t aHeight);
+
+  async InvalidateAndRender();
+  async MaxToolbarHeight(int32_t aHeight);
+  async FixedBottomOffset(int32_t aOffset);
+  async DefaultClearColor(uint32_t aColor);
+  async RequestScreenPixels();
+  async EnableLayerUpdateNotifications(bool aEnable);
+child:
+  async ToolbarAnimatorMessageFromCompositor(int32_t aMessage);
+  async RootFrameMetrics(ScreenPoint aScrollOffset, CSSToScreenScale aZoom);
+  async ScreenPixels(Shmem aMem, ScreenIntSize aSize, bool aNeedsYFlip);
+};
+
+} // layers
+} // mozilla