feat: mouse event config options

Adds `on_click_middle`, `on_click_right`, `on_scroll_up`, `on_scroll_down`.

BREAKING CHANGE: `on_click` is now called `on_click_left` for consistency with new options.

Resolves #44.

docs/Configuration guide.md

@@ -1,10 +1,12 @@
 By default, you get a single bar at the bottom of all your screens.
 To change that, you'll unsurprisingly need a config file.
 
-This page details putting together the skeleton for your config to get you to a stage where you can start configuring modules.
-It may look long and overwhelming, but that is just because the bar supports a lot of scenarios! 
+This page details putting together the skeleton for your config to get you to a stage where you can start configuring
+modules.
+It may look long and overwhelming, but that is just because the bar supports a lot of scenarios!
 
-If you want to see some ready-to-go config files check the [examples folder](https://github.com/JakeStanger/ironbar/tree/master/examples) 
+If you want to see some ready-to-go config files check
+the [examples folder](https://github.com/JakeStanger/ironbar/tree/master/examples)
 and the example pages in the sidebar.
 
 ## 1. Create config file
@@ -239,7 +241,7 @@ monitors:
 <details>
 <summary>Corn</summary>
 
-```
+```corn
 {
   monitors.DP-1 = [
     { start = [] }
@@ -281,8 +283,12 @@ For details on available modules and each of their config options, check the sid
 
 For information on the `Script` type, and embedding scripts in strings, see [here](script).
 
-| Name       | Type               | Default | Description                                                                                                        |
-|------------|--------------------|---------|--------------------------------------------------------------------------------------------------------------------|
-| `show_if`  | `Script [polling]` | `null`  | Polls the script to check its exit code. If exit code is zero, the module is shown. For other codes, it is hidden. |
-| `on_click` | `Script [polling]` | `null`  | Runs the script when the module is clicked.                                                                        |
-| `tooltip`  | `string`           | `null`  | Shows this text on hover. Supports embedding scripts between `{{double braces}}`.                                  |
+| Name              | Type               | Default | Description                                                                                                        |
+|-------------------|--------------------|---------|--------------------------------------------------------------------------------------------------------------------|
+| `show_if`         | `Script [polling]` | `null`  | Polls the script to check its exit code. If exit code is zero, the module is shown. For other codes, it is hidden. |
+| `on_click_left`   | `Script [oneshot]` | `null`  | Runs the script when the module is left clicked.                                                                   |
+| `on_click_middle` | `Script [oneshot]` | `null`  | Runs the script when the module is middle clicked.                                                                 |
+| `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.                                                               |
+| `tooltip`         | `string`           | `null`  | Shows this text on hover. Supports embedding scripts between `{{double braces}}`.                                  |

docs/Scripts.md

@@ -3,13 +3,16 @@ that allow script input to dynamically set values.
 
 Scripts are passed to `sh -c`.
 
-Two types of scripts exist: polling and watching:
+Three types of scripts exist: polling, oneshot and watching:
 
-- Polling scripts will run and wait for exit.
+- **Polling** scripts will run and wait for exit.
   Normally they will repeat this at an interval, hence the name, although in some cases they may only run on a user
   event.
   If the script exited code 0, the `stdout` will be used. Otherwise, `stderr` will be printed to the log.
-- Watching scripts start a long-running process. Every time the process writes to `stdout`, the last line is captured
+- **Oneshot** scripts are a variant of polling scripts. 
+  They wait for script to exit, and may do something with the output, but are only fired by user events instead of the interval.
+  Generally options that accept oneshot scripts do not support the other types.
+- **Watching** scripts start a long-running process. Every time the process writes to `stdout`, the last line is captured
   and used.
 
 One should prefer to use watch-mode where possible, as it removes the overhead of regularly spawning processes.
@@ -28,6 +31,8 @@ spawning the script.
 Both `mode` and `interval` are optional and can be excluded to fall back to their defaults of `poll` and `5000`
 respectively.
 
+For oneshot scripts, both the mode and interval are ignored.
+
 ### Shorthand (string)
 
 Shorthand scripts should be written in the format:

src/bar.rs

@@ -6,7 +6,7 @@ use crate::popup::Popup;
 use crate::script::{OutputStream, Script};
 use crate::{await_sync, read_lock, send, write_lock, Config};
 use color_eyre::Result;
-use gtk::gdk::Monitor;
+use gtk::gdk::{EventMask, Monitor, ScrollDirection};
 use gtk::prelude::*;
 use gtk::{Application, ApplicationWindow, EventBox, Orientation, Widget};
 use std::sync::{Arc, RwLock};
@@ -313,6 +313,7 @@ fn setup_receiver<TSend>(
 /// The event box container is returned.
 fn wrap_widget<W: IsA<Widget>>(widget: &W) -> EventBox {
     let container = EventBox::new();
+    container.add_events(EventMask::SCROLL_MASK);
     container.add(widget);
     container
 }
@@ -345,18 +346,55 @@ fn setup_module_common_options(container: EventBox, common: CommonConfig) {
         },
     );
 
-    if let Some(on_click) = common.on_click {
-        let script = Script::new_polling(on_click);
-        container.connect_button_press_event(move |_, _| {
-            trace!("Running on-click script");
+    let left_click_script = common.on_click_left.map(Script::new_polling);
+    let middle_click_script = common.on_click_middle.map(Script::new_polling);
+    let right_click_script = common.on_click_right.map(Script::new_polling);
+
+    container.connect_button_press_event(move |_, event| {
+        let script = match event.button() {
+            1 => left_click_script.as_ref(),
+            2 => middle_click_script.as_ref(),
+            3 => right_click_script.as_ref(),
+            _ => None,
+        };
+
+        if let Some(script) = script {
+            trace!("Running on-click script: {}", event.button());
+
             match await_sync(async { script.get_output().await }) {
                 Ok((OutputStream::Stderr(out), _)) => error!("{out}"),
                 Err(err) => error!("{err:?}"),
                 _ => {}
             }
-            Inhibit(false)
-        });
-    }
+        }
+
+        Inhibit(false)
+    });
+
+    let scroll_up_script = common.on_scroll_up.map(Script::new_polling);
+    let scroll_down_script = common.on_scroll_down.map(Script::new_polling);
+
+    container.connect_scroll_event(move |_, event| {
+        println!("{:?}", event.direction());
+
+        let script = match event.direction() {
+            ScrollDirection::Up => scroll_up_script.as_ref(),
+            ScrollDirection::Down => scroll_down_script.as_ref(),
+            _ => None,
+        };
+
+        if let Some(script) = script {
+            trace!("Running on-scroll script: {}", event.direction());
+
+            match await_sync(async { script.get_output().await }) {
+                Ok((OutputStream::Stderr(out), _)) => error!("{out}"),
+                Err(err) => error!("{err:?}"),
+                _ => {}
+            }
+        }
+
+        Inhibit(false)
+    });
 
     if let Some(tooltip) = common.tooltip {
         DynamicString::new(&tooltip, move |string| {

src/config/impl.rs

@@ -1,51 +1,14 @@
-use crate::modules::clock::ClockModule;
-use crate::modules::custom::CustomModule;
-use crate::modules::focused::FocusedModule;
-use crate::modules::launcher::LauncherModule;
-use crate::modules::mpd::MpdModule;
-use crate::modules::script::ScriptModule;
-use crate::modules::sysinfo::SysInfoModule;
-use crate::modules::tray::TrayModule;
-use crate::modules::workspaces::WorkspacesModule;
-use crate::script::ScriptInput;
-use color_eyre::eyre::{Context, ContextCompat};
-use color_eyre::{eyre, Help, Report};
+use super::{BarPosition, Config, MonitorConfig};
+use color_eyre::eyre::Result;
+use color_eyre::eyre::{ContextCompat, WrapErr};
+use color_eyre::{Help, Report};
 use dirs::config_dir;
-use eyre::Result;
 use gtk::Orientation;
 use serde::{Deserialize, Deserializer};
-use std::collections::HashMap;
 use std::path::{Path, PathBuf};
 use std::{env, fs};
 use tracing::instrument;
 
-#[derive(Debug, Deserialize, Clone)]
-pub struct CommonConfig {
-    pub show_if: Option<ScriptInput>,
-    pub on_click: Option<ScriptInput>,
-    pub tooltip: Option<String>,
-}
-
-#[derive(Debug, Deserialize, Clone)]
-#[serde(tag = "type", rename_all = "snake_case")]
-pub enum ModuleConfig {
-    Clock(ClockModule),
-    Mpd(MpdModule),
-    Tray(TrayModule),
-    Workspaces(WorkspacesModule),
-    SysInfo(SysInfoModule),
-    Launcher(LauncherModule),
-    Script(ScriptModule),
-    Focused(FocusedModule),
-    Custom(CustomModule),
-}
-
-#[derive(Debug, Clone)]
-pub enum MonitorConfig {
-    Single(Config),
-    Multiple(Vec<Config>),
-}
-
 // Manually implement for better untagged enum error handling:
 // currently open pr: https://github.com/serde-rs/serde/pull/1544
 impl<'de> Deserialize<'de> for MonitorConfig {
@@ -78,21 +41,6 @@ impl<'de> Deserialize<'de> for MonitorConfig {
     }
 }
 
-#[derive(Debug, Deserialize, Copy, Clone, PartialEq, Eq)]
-#[serde(rename_all = "snake_case")]
-pub enum BarPosition {
-    Top,
-    Bottom,
-    Left,
-    Right,
-}
-
-impl Default for BarPosition {
-    fn default() -> Self {
-        Self::Bottom
-    }
-}
-
 impl BarPosition {
     /// Gets the orientation the bar and widgets should use
     /// based on this position.
@@ -115,30 +63,6 @@ impl BarPosition {
     }
 }
 
-#[derive(Debug, Deserialize, Clone)]
-pub struct Config {
-    #[serde(default = "default_bar_position")]
-    pub position: BarPosition,
-    #[serde(default = "default_true")]
-    pub anchor_to_edges: bool,
-    #[serde(default = "default_bar_height")]
-    pub height: i32,
-
-    pub start: Option<Vec<ModuleConfig>>,
-    pub center: Option<Vec<ModuleConfig>>,
-    pub end: Option<Vec<ModuleConfig>>,
-
-    pub monitors: Option<HashMap<String, MonitorConfig>>,
-}
-
-const fn default_bar_position() -> BarPosition {
-    BarPosition::Bottom
-}
-
-const fn default_bar_height() -> i32 {
-    42
-}
-
 impl Config {
     /// Attempts to load the config file from file,
     /// parse it and return a new instance of `Self`.
@@ -214,10 +138,3 @@ impl Config {
         }
     }
 }
-
-pub const fn default_false() -> bool {
-    false
-}
-pub const fn default_true() -> bool {
-    true
-}

src/config/mod.rs

@@ -0,0 +1,94 @@
+mod r#impl;
+
+use crate::modules::clock::ClockModule;
+use crate::modules::custom::CustomModule;
+use crate::modules::focused::FocusedModule;
+use crate::modules::launcher::LauncherModule;
+use crate::modules::mpd::MpdModule;
+use crate::modules::script::ScriptModule;
+use crate::modules::sysinfo::SysInfoModule;
+use crate::modules::tray::TrayModule;
+use crate::modules::workspaces::WorkspacesModule;
+use crate::script::ScriptInput;
+use serde::Deserialize;
+use std::collections::HashMap;
+
+#[derive(Debug, Deserialize, Clone)]
+pub struct CommonConfig {
+    pub show_if: Option<ScriptInput>,
+
+    pub on_click_left: Option<ScriptInput>,
+    pub on_click_right: Option<ScriptInput>,
+    pub on_click_middle: Option<ScriptInput>,
+    pub on_scroll_up: Option<ScriptInput>,
+    pub on_scroll_down: Option<ScriptInput>,
+
+    pub tooltip: Option<String>,
+}
+
+#[derive(Debug, Deserialize, Clone)]
+#[serde(tag = "type", rename_all = "snake_case")]
+pub enum ModuleConfig {
+    Clock(ClockModule),
+    Mpd(MpdModule),
+    Tray(TrayModule),
+    Workspaces(WorkspacesModule),
+    SysInfo(SysInfoModule),
+    Launcher(LauncherModule),
+    Script(ScriptModule),
+    Focused(FocusedModule),
+    Custom(CustomModule),
+}
+
+#[derive(Debug, Clone)]
+pub enum MonitorConfig {
+    Single(Config),
+    Multiple(Vec<Config>),
+}
+
+#[derive(Debug, Deserialize, Copy, Clone, PartialEq, Eq)]
+#[serde(rename_all = "snake_case")]
+pub enum BarPosition {
+    Top,
+    Bottom,
+    Left,
+    Right,
+}
+
+impl Default for BarPosition {
+    fn default() -> Self {
+        Self::Bottom
+    }
+}
+
+#[derive(Debug, Deserialize, Clone)]
+pub struct Config {
+    #[serde(default = "default_bar_position")]
+    pub position: BarPosition,
+    #[serde(default = "default_true")]
+    pub anchor_to_edges: bool,
+    #[serde(default = "default_bar_height")]
+    pub height: i32,
+
+    pub start: Option<Vec<ModuleConfig>>,
+    pub center: Option<Vec<ModuleConfig>>,
+    pub end: Option<Vec<ModuleConfig>>,
+
+    pub monitors: Option<HashMap<String, MonitorConfig>>,
+}
+
+const fn default_bar_position() -> BarPosition {
+    BarPosition::Bottom
+}
+
+const fn default_bar_height() -> i32 {
+    42
+}
+
+pub const fn default_false() -> bool {
+    false
+}
+
+pub const fn default_true() -> bool {
+    true
+}