plugin_framework, manager, install plugin

Signed-off-by: fufesou <shuanglongchen@yeah.net>

src/common.rs

@@ -19,7 +19,7 @@ use hbb_common::compress::decompress;
 use hbb_common::{
     allow_err,
     compress::compress as compress_func,
-    config::{self, Config, COMPRESS_LEVEL, RENDEZVOUS_TIMEOUT},
+    config::{self, Config, RENDEZVOUS_TIMEOUT},
     get_version_number, log,
     message_proto::*,
     protobuf::Enum,
@@ -68,6 +68,19 @@ lazy_static::lazy_static! {
     static ref ARBOARD_MTX: Arc<Mutex<()>> = Arc::new(Mutex::new(()));
 }
 
+pub struct SimpleCallOnReturn {
+    pub b: bool,
+    pub f: Box<dyn Fn() + 'static>,
+}
+
+impl Drop for SimpleCallOnReturn {
+    fn drop(&mut self) {
+        if self.b {
+            (self.f)();
+        }
+    }
+}
+
 pub fn global_init() -> bool {
     #[cfg(target_os = "linux")]
     {
@@ -98,7 +111,7 @@ pub fn valid_for_numlock(evt: &KeyEvent) -> bool {
 
 pub fn create_clipboard_msg(content: String) -> Message {
     let bytes = content.into_bytes();
-    let compressed = compress_func(&bytes, COMPRESS_LEVEL);
+    let compressed = compress_func(&bytes);
     let compress = compressed.len() < bytes.len();
     let content = if compress { compressed } else { bytes };
     let mut msg = Message::new();