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The old dispatch mechanism has been left in place and continues to be used by default for now. To enable native input dispatch, edit the ENABLE_NATIVE_DISPATCH constant in WindowManagerPolicy. Includes part of the new input event NDK API. Some details TBD. To wire up input dispatch, as the ViewRoot adds a window to the window session it receives an InputChannel object as an output argument. The InputChannel encapsulates the file descriptors for a shared memory region and two pipe end-points. The ViewRoot then provides the InputChannel to the InputQueue. Behind the scenes, InputQueue simply attaches handlers to the native PollLoop object that underlies the MessageQueue. This way MessageQueue doesn't need to know anything about input dispatch per-se, it just exposes (in native code) a PollLoop that other components can use to monitor file descriptor state changes. There can be zero or more targets for any given input event. Each input target is specified by its input channel and some parameters including flags, an X/Y coordinate offset, and the dispatch timeout. An input target can request either synchronous dispatch (for foreground apps) or asynchronous dispatch (fire-and-forget for wallpapers and "outside" targets). Currently, finding the appropriate input targets for an event requires a call back into the WindowManagerServer from native code. In the future this will be refactored to avoid most of these callbacks except as required to handle pending focus transitions. End-to-end event dispatch mostly works! To do: event injection, rate limiting, ANRs, testing, optimization, etc. Change-Id: I8c36b2b9e0a2d27392040ecda0f51b636456de25 |
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| adb | ||
| charger | ||
| cpio | ||
| debuggerd | ||
| fastboot | ||
| fastbootd | ||
| fs_mgr | ||
| gpttool | ||
| healthd | ||
| include | ||
| init | ||
| libcorkscrew | ||
| libctest | ||
| libcutils | ||
| libdiskconfig | ||
| libion | ||
| liblinenoise | ||
| liblog | ||
| libmincrypt | ||
| libnetutils | ||
| libnl_2 | ||
| libpixelflinger | ||
| libs/utils | ||
| libsparse | ||
| libsuspend | ||
| libsync | ||
| libsysutils | ||
| libusbhost | ||
| libzipfile | ||
| logcat | ||
| logwrapper | ||
| mkbootimg | ||
| netcfg | ||
| reboot | ||
| rootdir | ||
| run-as | ||
| sdcard | ||
| sh | ||
| toolbox | ||
| .gitignore | ||
| Android.mk | ||
| CleanSpec.mk | ||
| MODULE_LICENSE_APACHE2 | ||
| NOTICE | ||
| README | ||
| ThirdPartyProject.prop | ||
The system/ directory is intended for pieces of the world that are the core of the embedded linux platform at the heart of Android. These essential bits are required for basic booting, operation, and debugging. They should not depend on libraries outside of system/... (some of them do currently -- they need to be updated or changed) and they should not be required for the simulator build. The license for all these pieces should be clean (Apache2, BSD, or MIT). Currently system/bluetooth/... and system/extra/... have some pieces with GPL/LGPL licensed code. Assorted Issues: - pppd depends on libutils for logging - pppd depends on libcrypt/libcrypto - init, linker, debuggerd, toolbox, usbd depend on libcutils - should probably rename bionic to libc