Feature flags support in Chooser

A minimalistic replica of the SysUI feature flag infrastructure so the
app could both reuse some of the existing flag infrastructure (local
flag flipping) and have features controlled remotely (through
DeviceConfig).

A re-introduction of reverted ag/20796272 with the fixed
release build variant.

Bug: 262578843
Test: Manual tests with some injected debug code and local flag flipping
Test: Smoke tests both build variants
Change-Id: Ie536172020bcb7e6cd96f44c228a6941004858f8

3 files changed, 81 insertions, 0 deletions

diff --git a/java/src/com/android/intentresolver/flags/DeviceConfigProxy.kt b/java/src/com/android/intentresolver/flags/DeviceConfigProxy.kt
new file mode 100644
index 00000000..ac782471
--- /dev/null
+++ b/java/src/com/android/intentresolver/flags/DeviceConfigProxy.kt
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.intentresolver.flags
+
+import android.provider.DeviceConfig
+import com.android.systemui.flags.ParcelableFlag
+
+internal class DeviceConfigProxy {
+    fun isEnabled(flag: ParcelableFlag<Boolean>): Boolean? {
+        return runCatching {
+            DeviceConfig.getBoolean(flag.namespace, flag.name, flag.default)
+        }.getOrDefault(null)
+    }
+}
diff --git a/java/src/com/android/intentresolver/flags/FeatureFlagRepository.kt b/java/src/com/android/intentresolver/flags/FeatureFlagRepository.kt
new file mode 100644
index 00000000..5b5d769c
--- /dev/null
+++ b/java/src/com/android/intentresolver/flags/FeatureFlagRepository.kt
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.intentresolver.flags
+
+import com.android.systemui.flags.ReleasedFlag
+import com.android.systemui.flags.UnreleasedFlag
+
+interface FeatureFlagRepository {
+    fun isEnabled(flag: UnreleasedFlag): Boolean
+    fun isEnabled(flag: ReleasedFlag): Boolean
+}
diff --git a/java/src/com/android/intentresolver/flags/Flags.kt b/java/src/com/android/intentresolver/flags/Flags.kt
new file mode 100644
index 00000000..c9271a6a
--- /dev/null
+++ b/java/src/com/android/intentresolver/flags/Flags.kt
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.intentresolver.flags
+
+import com.android.systemui.flags.UnreleasedFlag
+
+// keep in sync with com.android.systemui.flags.Flags to make the flags available in the
+// flag flipper app (see go/sysui-flags)
+object Flags {
+    @JvmField
+    val SHARESHEET_CUSTOM_ACTIONS = UnreleasedFlag(
+        id = 1501, name = "sharesheet_custom_actions", namespace = "systemui", teamfood = false
+    )
+}