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.

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
+}