ozone: evdev: Add libgestures bindings for touchpad & mouse support

ui/events/events.gyp

 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 96 matching lines @@
         'gestures/gesture_point.h',
         'gestures/gesture_recognizer.h',
         'gestures/gesture_recognizer_impl.cc',
         'gestures/gesture_recognizer_impl.h',
         'gestures/gesture_sequence.cc',
         'gestures/gesture_sequence.h',
         'gestures/gesture_types.cc',
         'gestures/gesture_types.h',
         'gestures/velocity_calculator.cc',
         'gestures/velocity_calculator.h',
+        'ozone/evdev/gestures/event_reader_libevdev_cros.cc',
+        'ozone/evdev/gestures/event_reader_libevdev_cros.h',
+        'ozone/evdev/gestures/gesture_interpreter_libevdev_cros.cc',
+        'ozone/evdev/gestures/gesture_interpreter_libevdev_cros.h',
+        'ozone/evdev/gestures/gesture_logging.cc',
+        'ozone/evdev/gestures/gesture_logging.h',
+        'ozone/evdev/gestures/gesture_property_provider.cc',
+        'ozone/evdev/gestures/gesture_property_provider.h',
+        'ozone/evdev/gestures/gesture_timer_provider.cc',
+        'ozone/evdev/gestures/gesture_timer_provider.h',
         'ozone/evdev/device_manager_evdev.cc',
         'ozone/evdev/device_manager_evdev.h',
         'ozone/evdev/device_manager_udev.cc',
         'ozone/evdev/device_manager_udev.h',
         'ozone/evdev/event_converter_evdev.cc',
         'ozone/evdev/event_converter_evdev.h',
         'ozone/evdev/event_device_info.cc',
         'ozone/evdev/event_device_info.h',
         'ozone/evdev/event_factory_evdev.cc',
         'ozone/evdev/event_factory_evdev.h',
@@ skipping 23 matching lines @@
           ],
         }],
         ['use_ozone_evdev==1', {
           'defines': ['USE_OZONE_EVDEV=1'],
         }],
         ['use_ozone_evdev==1 and use_udev==1', {
           'dependencies': [
             '<(DEPTH)/build/linux/system.gyp:udev',
           ],
         }],
+        ['use_ozone_evdev==1 and use_evdev_gestures==1', {

[sadrul, 2014/03/11 16:48:12]

Do we really need to support this level of granularity for every feature? Can we
just require that if you are using evdev, you should always use libgestures as
well?

[spang, 2014/03/11 16:58:50]

It's this way because the library does not exist on desktop, and so can't be in
in build-deps, and because it is not checked into third_party.

There's precedent for this. In particular CRAS works this way, because libcras
is a similar library that only exists in ChromeOS.

[sadrul, 2014/03/11 18:13:41]

Fair enough. I suspect we would want some sort of test-coverage for this code at
some point though, and so we would need to pull this into third_party at that
time. We should make sure that this doesn't get lost (file a bug?)

+          'dependencies': [
+            '<(DEPTH)/build/linux/system.gyp:libgestures',
+            '<(DEPTH)/build/linux/system.gyp:libevdev-cros',
+          ],
+          'defines': [
+            'USE_EVDEV_GESTURES',
+          ],
+        }, {
+          'sources/': [
+            ['exclude', '^ozone/evdev/gestures/'],
+          ],
+        }],
         ['use_udev==0', {
           'sources!': [
             'ozone/evdev/device_manager_udev.cc',
             'ozone/evdev/device_manager_udev.h',
           ],
         }],
       ],
     },
     {
       'target_name': 'gesture_detection',
@@ skipping 151 matching lines @@
           'variables': {
             'test_suite_name': 'events_unittests',
             'input_shlib_path': '<(SHARED_LIB_DIR)/<(SHARED_LIB_PREFIX)events_unittests<(SHARED_LIB_SUFFIX)',
           },
           'includes': [ '../../build/apk_test.gypi' ],
         },
       ],
     }],
   ],
 }