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).

Bug: 262578843
Test: Manual tests with some injected debug code and local flag flipping
Change-Id: If4be0cfce17e98b978966ea5172f85c5d406f833

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..e23616f2
--- /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.BooleanFlag
+
+internal class DeviceConfigProxy {
+    fun isEnabled(flag: BooleanFlag): 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..7c23f7de
--- /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 CHOOSER_CUSTOM_ACTIONS = UnreleasedFlag(
+        id = 1501, name = "chooser_custom_actions", namespace = "systemui", teamfood = false
+    )
+}