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
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 1bca6f9..64361db 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -1739,6 +1739,21 @@
return *this;
}
+SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setDropInputMode(
+ const sp<SurfaceControl>& sc, gui::DropInputMode mode) {
+ layer_state_t* s = getLayerState(sc);
+ if (!s) {
+ mStatus = BAD_INDEX;
+ return *this;
+ }
+
+ s->what |= layer_state_t::eDropInputModeChanged;
+ s->dropInputMode = mode;
+
+ registerSurfaceControlForCallback(sc);
+ return *this;
+}
+
// ---------------------------------------------------------------------------
DisplayState& SurfaceComposerClient::Transaction::getDisplayState(const sp<IBinder>& token) {