feat: module hover options

Resolves #70.

docs/Configuration guide.md

@@ -296,4 +296,6 @@ For information on the `Script` type, and embedding scripts in strings, see [her
 | `on_click_right`  | `Script [oneshot]` | `null`  | Runs the script when the module is right clicked.                                                                  |
 | `on_scroll_up`    | `Script [oneshot]` | `null`  | Runs the script when the module is scroll up on.                                                                   |
 | `on_scroll_down`  | `Script [oneshot]` | `null`  | Runs the script when the module is scrolled down on.                                                               |
+| `on_mouse_enter`  | `Script [oneshot]` | `null`  | Runs the script when the module is hovered over.                                                                   |
+| `on_mouse_exit`   | `Script [oneshot]` | `null`  | Runs the script when the module is no longer hovered over.                                                         |
 | `tooltip`         | `string`           | `null`  | Shows this text on hover. Supports embedding scripts between `{{double braces}}`.                                  |

src/bar.rs

@@ -397,12 +397,7 @@ fn setup_module_common_options(container: EventBox, common: CommonConfig) {
 
         if let Some(script) = script {
             trace!("Running on-click script: {}", event.button());
-
+            run_script(script);
-            match await_sync(async { script.get_output().await }) {
-                Ok((OutputStream::Stderr(out), _)) => error!("{out}"),
-                Err(err) => error!("{err:?}"),
-                _ => {}
-            }
         }
 
         Inhibit(false)
@@ -420,12 +415,27 @@ fn setup_module_common_options(container: EventBox, common: CommonConfig) {
 
         if let Some(script) = script {
             trace!("Running on-scroll script: {}", event.direction());
-
+            run_script(script);
-            match await_sync(async { script.get_output().await }) {
-                Ok((OutputStream::Stderr(out), _)) => error!("{out}"),
-                Err(err) => error!("{err:?}"),
-                _ => {}
         }
+
+        Inhibit(false)
+    });
+
+    let mouse_enter_script = common.on_mouse_enter.map(Script::new_polling);
+    container.connect_enter_notify_event(move |_, _| {
+        if let Some(ref script) = mouse_enter_script {
+            trace!("Running enter script");
+            run_script(script);
+        }
+
+        Inhibit(false)
+    });
+
+    let mouse_exit_script = common.on_mouse_exit.map(Script::new_polling);
+    container.connect_leave_notify_event(move |_, _| {
+        if let Some(ref script) = mouse_exit_script {
+            trace!("Running exit script");
+            run_script(script);
         }
 
         Inhibit(false)
@@ -438,3 +448,11 @@ fn setup_module_common_options(container: EventBox, common: CommonConfig) {
         });
     }
 }
+
+fn run_script(script: &Script) {
+    match await_sync(async { script.get_output().await }) {
+        Ok((OutputStream::Stderr(out), _)) => error!("{out}"),
+        Err(err) => error!("{err:?}"),
+        _ => {}
+    }
+}

src/config/mod.rs

@@ -32,6 +32,8 @@ pub struct CommonConfig {
     pub on_click_middle: Option<ScriptInput>,
     pub on_scroll_up: Option<ScriptInput>,
     pub on_scroll_down: Option<ScriptInput>,
+    pub on_mouse_enter: Option<ScriptInput>,
+    pub on_mouse_exit: Option<ScriptInput>,
 
     pub tooltip: Option<String>,
 }