From 9cf4a4d4e57d059a4e4119f0a8f2a8be237f28c2 Mon Sep 17 00:00:00 2001 From: Vishnu Nair Date: Fri, 17 Sep 2021 12:16:08 -0700 Subject: SurfaceControl: Add setDropInputMode api Introduces an API to drop input events on this SurfaceControl. This policy will be inherited by its children. The caller must hold the ACCESS_SURFACE_FLINGER permission. Options include: ALL: SurfaceControl and its children will not receive any input regardless of whether it has a valid input channel. OBSCURED: SurfaceControl and its children will not receive any input if the layer is obscured, cropped by its parent or translucent. These policies are used to enable features that allow for a less trusted interaction model between apps. See the bug for more details. Test: atest libgui_test InputDispatcherDropInputFeatureTest Bug:197364677 Change-Id: I443741d5ab51a45d37fb865f11c433c436d96c1e --- libs/gui/LayerState.cpp | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'libs/gui/LayerState.cpp') diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp index 1fd9d13902..a419a63056 100644 --- a/libs/gui/LayerState.cpp +++ b/libs/gui/LayerState.cpp @@ -69,7 +69,8 @@ layer_state_t::layer_state_t() isTrustedOverlay(false), bufferCrop(Rect::INVALID_RECT), destinationFrame(Rect::INVALID_RECT), - releaseBufferListener(nullptr) { + releaseBufferListener(nullptr), + dropInputMode(gui::DropInputMode::NONE) { matrix.dsdx = matrix.dtdy = 1.0f; matrix.dsdy = matrix.dtdx = 0.0f; hdrMetadata.validTypes = 0; @@ -174,6 +175,7 @@ status_t layer_state_t::write(Parcel& output) const SAFE_PARCEL(output.writeBool, isTrustedOverlay); SAFE_PARCEL(output.writeStrongBinder, releaseBufferEndpoint); + SAFE_PARCEL(output.writeUint32, static_cast(dropInputMode)); return NO_ERROR; } @@ -304,6 +306,10 @@ status_t layer_state_t::read(const Parcel& input) SAFE_PARCEL(input.readBool, &isTrustedOverlay); SAFE_PARCEL(input.readNullableStrongBinder, &releaseBufferEndpoint); + + uint32_t mode; + SAFE_PARCEL(input.readUint32, &mode); + dropInputMode = static_cast(mode); return NO_ERROR; } @@ -558,6 +564,10 @@ void layer_state_t::merge(const layer_state_t& other) { if (other.what & eProducerDisconnect) { what |= eProducerDisconnect; } + if (other.what & eDropInputModeChanged) { + what |= eDropInputModeChanged; + dropInputMode = other.dropInputMode; + } if ((other.what & what) != other.what) { ALOGE("Unmerged SurfaceComposer Transaction properties. LayerState::merge needs updating? " "other.what=0x%" PRIX64 " what=0x%" PRIX64 " unmerged flags=0x%" PRIX64, -- cgit v1.2.3-59-g8ed1b