Add user-defined context actions

src/context_action.rs

@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-3.0-only
+
+use std::path::PathBuf;
+
+use serde::{Deserialize, Serialize};
+
+use crate::{mime_app, spawn_detached::spawn_detached};
+
+#[derive(Clone, Copy, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
+pub enum ContextActionSelection {
+    #[default]
+    #[serde(alias = "any")]
+    Any,
+    #[serde(alias = "files")]
+    Files,
+    #[serde(alias = "folders")]
+    Folders,
+}
+
+#[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
+#[serde(default)]
+pub struct ContextActionPreset {
+    pub name: String,
+    pub confirm: bool,
+    pub selection: ContextActionSelection,
+    pub steps: Vec<String>,
+}
+
+impl ContextActionPreset {
+    pub fn matches_selection(&self, selected: usize, selected_dir: usize) -> bool {
+        if selected == 0 {
+            return false;
+        }
+
+        match self.selection {
+            ContextActionSelection::Any => true,
+            ContextActionSelection::Files => selected_dir == 0,
+            ContextActionSelection::Folders => selected_dir == selected,
+        }
+    }
+
+    pub fn run(&self, paths: &[PathBuf]) {
+        if self.steps.is_empty() {
+            log::warn!("context action {:?} has no steps", self.name);
+            return;
+        }
+
+        for step in &self.steps {
+            let Some(commands) = mime_app::exec_to_command(step, paths) else {
+                log::warn!(
+                    "failed to parse context action {:?}: invalid Exec {:?}",
+                    self.name,
+                    step
+                );
+                return;
+            };
+
+            for mut command in commands {
+                if let Err(err) = spawn_detached(&mut command) {
+                    log::warn!(
+                        "failed to run context action {:?} step {:?}: {}",
+                        self.name,
+                        step,
+                        err
+                    );
+                    return;
+                }
+            }
+        }
+    }
+}
+
+pub fn action_name(actions: &[ContextActionPreset], action: usize) -> Option<String> {
+    actions.get(action).map(|preset| preset.name.clone())
+}
+
+pub fn run(actions: &[ContextActionPreset], action: usize, paths: &[PathBuf]) {
+    if let Some(preset) = actions.get(action) {
+        preset.run(paths);
+    } else {
+        log::warn!("invalid context action index `{action}`");
+    }
+}