| Lift freeq's AV media plane out of sleek 90f8b89 nandi 20d ago | 1 | use jni::sys::jobject; |
| 2 | use ndk_context::AndroidContext; |
| 3 | use std::sync::Arc; |
| 4 | |
| 5 | pub use jni::Executor; |
| 6 | |
| 7 | pub use jni::{ |
| 8 | errors::Result as JResult, |
| 9 | objects::{JIntArray, JObject, JObjectArray, JString}, |
| 10 | JNIEnv, JavaVM, |
| 11 | }; |
| 12 | |
| 13 | pub fn get_context() -> AndroidContext { |
| 14 | ndk_context::android_context() |
| 15 | } |
| 16 | |
| 17 | pub fn with_attached<F, R>(context: AndroidContext, closure: F) -> JResult<R> |
| 18 | where |
| 19 | for<'j> F: FnOnce(&mut JNIEnv<'j>, JObject<'j>) -> JResult<R>, |
| 20 | { |
| 21 | let vm = Arc::new(unsafe { JavaVM::from_raw(context.vm().cast())? }); |
| 22 | let context = context.context(); |
| 23 | let context = unsafe { JObject::from_raw(context as jobject) }; |
| 24 | Executor::new(vm).with_attached(|env| closure(env, context)) |
| 25 | } |
| 26 | |
| 27 | pub fn call_method_no_args_ret_int_array<'j>( |
| 28 | env: &mut JNIEnv<'j>, |
| 29 | subject: &JObject<'j>, |
| 30 | method: &str, |
| 31 | ) -> JResult<Vec<i32>> { |
| 32 | let array: JIntArray = env.call_method(subject, method, "()[I", &[])?.l()?.into(); |
| 33 | |
| 34 | let length = env.get_array_length(&array)?; |
| 35 | let mut values = Vec::with_capacity(length as usize); |
| 36 | |
| 37 | env.get_int_array_region(array, 0, values.as_mut())?; |
| 38 | |
| 39 | Ok(values) |
| 40 | } |
| 41 | |
| 42 | pub fn call_method_no_args_ret_int<'j>( |
| 43 | env: &mut JNIEnv<'j>, |
| 44 | subject: &JObject<'j>, |
| 45 | method: &str, |
| 46 | ) -> JResult<i32> { |
| 47 | env.call_method(subject, method, "()I", &[])?.i() |
| 48 | } |
| 49 | |
| 50 | pub fn call_method_no_args_ret_bool<'j>( |
| 51 | env: &mut JNIEnv<'j>, |
| 52 | subject: &JObject<'j>, |
| 53 | method: &str, |
| 54 | ) -> JResult<bool> { |
| 55 | env.call_method(subject, method, "()Z", &[])?.z() |
| 56 | } |
| 57 | |
| 58 | pub fn call_method_no_args_ret_string<'j>( |
| 59 | env: &mut JNIEnv<'j>, |
| 60 | subject: &JObject<'j>, |
| 61 | method: &str, |
| 62 | ) -> JResult<JString<'j>> { |
| 63 | Ok(env |
| 64 | .call_method(subject, method, "()Ljava/lang/String;", &[])? |
| 65 | .l()? |
| 66 | .into()) |
| 67 | } |
| 68 | |
| 69 | pub fn call_method_no_args_ret_char_sequence<'j>( |
| 70 | env: &mut JNIEnv<'j>, |
| 71 | subject: &JObject<'j>, |
| 72 | method: &str, |
| 73 | ) -> JResult<JString<'j>> { |
| 74 | let cseq = env |
| 75 | .call_method(subject, method, "()Ljava/lang/CharSequence;", &[])? |
| 76 | .l()?; |
| 77 | |
| 78 | Ok(env |
| 79 | .call_method(&cseq, "toString", "()Ljava/lang/String;", &[])? |
| 80 | .l()? |
| 81 | .into()) |
| 82 | } |
| 83 | |
| 84 | pub fn call_method_string_arg_ret_bool<'j>( |
| 85 | env: &mut JNIEnv<'j>, |
| 86 | subject: &JObject<'j>, |
| 87 | name: &str, |
| 88 | arg: impl AsRef<str>, |
| 89 | ) -> JResult<bool> { |
| 90 | env.call_method( |
| 91 | subject, |
| 92 | name, |
| 93 | "(Ljava/lang/String;)Z", |
| 94 | &[(&env.new_string(arg)?).into()], |
| 95 | )? |
| 96 | .z() |
| 97 | } |
| 98 | |
| 99 | pub fn call_method_string_arg_ret_string<'j>( |
| 100 | env: &mut JNIEnv<'j>, |
| 101 | subject: &JObject<'j>, |
| 102 | name: &str, |
| 103 | arg: impl AsRef<str>, |
| 104 | ) -> JResult<JString<'j>> { |
| 105 | Ok(env |
| 106 | .call_method( |
| 107 | subject, |
| 108 | name, |
| 109 | "(Ljava/lang/String;)Ljava/lang/String;", |
| 110 | &[(&env.new_string(arg)?).into()], |
| 111 | )? |
| 112 | .l()? |
| 113 | .into()) |
| 114 | } |
| 115 | |
| 116 | pub fn call_method_string_arg_ret_object<'j>( |
| 117 | env: &mut JNIEnv<'j>, |
| 118 | subject: &JObject<'j>, |
| 119 | method: &str, |
| 120 | arg: &str, |
| 121 | ) -> JResult<JObject<'j>> { |
| 122 | env.call_method( |
| 123 | subject, |
| 124 | method, |
| 125 | "(Ljava/lang/String;)Ljava/lang/Object;", |
| 126 | &[(&env.new_string(arg)?).into()], |
| 127 | )? |
| 128 | .l() |
| 129 | } |
| 130 | |
| 131 | pub fn get_package_manager<'j>( |
| 132 | env: &mut JNIEnv<'j>, |
| 133 | subject: &JObject<'j>, |
| 134 | ) -> JResult<JObject<'j>> { |
| 135 | env.call_method( |
| 136 | subject, |
| 137 | "getPackageManager", |
| 138 | "()Landroid/content/pm/PackageManager;", |
| 139 | &[], |
| 140 | )? |
| 141 | .l() |
| 142 | } |
| 143 | |
| 144 | pub fn has_system_feature<'j>( |
| 145 | env: &mut JNIEnv<'j>, |
| 146 | subject: &JObject<'j>, |
| 147 | name: &str, |
| 148 | ) -> JResult<bool> { |
| 149 | call_method_string_arg_ret_bool(env, subject, "hasSystemFeature", name) |
| 150 | } |
| 151 | |
| 152 | pub fn get_system_service<'j>( |
| 153 | env: &mut JNIEnv<'j>, |
| 154 | subject: &JObject<'j>, |
| 155 | name: &str, |
| 156 | ) -> JResult<JObject<'j>> { |
| 157 | call_method_string_arg_ret_object(env, subject, "getSystemService", name) |
| 158 | } |
| 159 | |
| 160 | pub fn get_property<'j>( |
| 161 | env: &mut JNIEnv<'j>, |
| 162 | subject: &JObject<'j>, |
| 163 | name: &str, |
| 164 | ) -> JResult<JString<'j>> { |
| 165 | call_method_string_arg_ret_string(env, subject, "getProperty", name) |
| 166 | } |
| 167 | |
| 168 | /// Read an Android system property |
| 169 | pub fn get_system_property<'j>( |
| 170 | env: &mut JNIEnv<'j>, |
| 171 | name: &str, |
| 172 | default_value: &str, |
| 173 | ) -> JResult<JString<'j>> { |
| 174 | Ok(env |
| 175 | .call_static_method( |
| 176 | "android/os/SystemProperties", |
| 177 | "get", |
| 178 | "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;", |
| 179 | &[ |
| 180 | (&env.new_string(name)?).into(), |
| 181 | (&env.new_string(default_value)?).into(), |
| 182 | ], |
| 183 | )? |
| 184 | .l()? |
| 185 | .into()) |
| 186 | } |
| 187 | |
| 188 | pub fn get_devices<'j>( |
| 189 | env: &mut JNIEnv<'j>, |
| 190 | subject: &JObject<'j>, |
| 191 | flags: i32, |
| 192 | ) -> JResult<JObjectArray<'j>> { |
| 193 | env.call_method( |
| 194 | subject, |
| 195 | "getDevices", |
| 196 | "(I)[Landroid/media/AudioDeviceInfo;", |
| 197 | &[flags.into()], |
| 198 | )? |
| 199 | .l() |
| 200 | .map(From::from) |
| 201 | } |