feat: ability to configure popup gap

docs/Configuration guide.md

@@ -272,6 +272,7 @@ The following table lists each of the top-level bar config options:
 | `position`        | `top` or `bottom` or `left` or `right` | `bottom` | The bar's position on screen.                                                           |
 | `anchor_to_edges` | `boolean`                              | `false`  | Whether to anchor the bar to the edges of the screen. Setting to false centres the bar. |
 | `height`          | `integer`                              | `42`     | The bar's height in pixels.                                                             |
+| `popup_gap`       | `integer`                              | `5`      | The gap between the bar and popup window.                                               |
 | `margin.top`      | `integer`                              | `0`      | The margin on the top of the bar                                                        |
 | `margin.bottom`   | `integer`                              | `0`      | The margin on the bottom of the bar                                                     |
 | `margin.left`     | `integer`                              | `0`      | The margin on the left of the bar                                                       |

src/bar.rs

@@ -168,17 +168,17 @@ fn load_modules(
 
     if let Some(modules) = config.start {
         let info = info!(ModuleLocation::Left);
-        add_modules(left, modules, &info)?;
+        add_modules(left, modules, &info, config.popup_gap)?;
     }
 
     if let Some(modules) = config.center {
         let info = info!(ModuleLocation::Center);
-        add_modules(center, modules, &info)?;
+        add_modules(center, modules, &info, config.popup_gap)?;
     }
 
     if let Some(modules) = config.end {
         let info = info!(ModuleLocation::Right);
-        add_modules(right, modules, &info)?;
+        add_modules(right, modules, &info, config.popup_gap)?;
     }
 
     Ok(())
@@ -186,8 +186,13 @@ fn load_modules(
 
 /// Adds modules into a provided GTK box,
 /// which should be one of its left, center or right containers.
-fn add_modules(content: &gtk::Box, modules: Vec<ModuleConfig>, info: &ModuleInfo) -> Result<()> {
+fn add_modules(
-    let popup = Popup::new(info);
+    content: &gtk::Box,
+    modules: Vec<ModuleConfig>,
+    info: &ModuleInfo,
+    popup_gap: i32,
+) -> Result<()> {
+    let popup = Popup::new(info, popup_gap);
     let popup = Arc::new(RwLock::new(popup));
 
     macro_rules! add_module {

src/config/mod.rs

@@ -102,6 +102,8 @@ pub struct Config {
     pub height: i32,
     #[serde(default)]
     pub margin: MarginConfig,
+    #[serde(default = "default_popup_gap")]
+    pub popup_gap: i32,
 
     /// GTK icon theme to use.
     pub icon_theme: Option<String>,
@@ -117,6 +119,10 @@ const fn default_bar_height() -> i32 {
     42
 }
 
+const fn default_popup_gap() -> i32 {
+    5
+}
+
 pub const fn default_false() -> bool {
     false
 }

src/popup.rs

@@ -19,7 +19,7 @@ impl Popup {
     /// Creates a new popup window.
     /// This includes setting up gtk-layer-shell
     /// and an empty `gtk::Box` container.
-    pub fn new(module_info: &ModuleInfo) -> Self {
+    pub fn new(module_info: &ModuleInfo, gap: i32) -> Self {
         let pos = module_info.bar_position;
         let orientation = pos.get_orientation();
 
@@ -34,22 +34,22 @@ impl Popup {
         gtk_layer_shell::set_margin(
             &win,
             gtk_layer_shell::Edge::Top,
-            if pos == BarPosition::Top { 5 } else { 0 },
+            if pos == BarPosition::Top { gap } else { 0 },
         );
         gtk_layer_shell::set_margin(
             &win,
             gtk_layer_shell::Edge::Bottom,
-            if pos == BarPosition::Bottom { 5 } else { 0 },
+            if pos == BarPosition::Bottom { gap } else { 0 },
         );
         gtk_layer_shell::set_margin(
             &win,
             gtk_layer_shell::Edge::Left,
-            if pos == BarPosition::Left { 5 } else { 0 },
+            if pos == BarPosition::Left { gap } else { 0 },
         );
         gtk_layer_shell::set_margin(
             &win,
             gtk_layer_shell::Edge::Right,
-            if pos == BarPosition::Right { 5 } else { 0 },
+            if pos == BarPosition::Right { gap } else { 0 },
         );
 
         gtk_layer_shell::set_anchor(