swadhin / fetchx public

feat: create image_backend module with Backend enum

Swadhin Biswas committed 7 months ago
790e1e8
1 parent 24a4879
commit 790e1e8
1 file changed
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Showing 1 changed file+50-0
src/image_backend/mod.rs
▼src/image_backend/mod.rs
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+//! Image backend module for FetchX
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+//!
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+//! Supports: kitty graphics protocol, sixel (via external tool), chafa, and "off".
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+
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+use base64::Engine;
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+use std::io::{self, Write};
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+use std::path::Path;
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+use std::process::Command;
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+
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+/// Image backend types
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+#[derive(Debug, Clone, PartialEq)]
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+pub enum Backend {
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+ Ascii,
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+ Kitty,
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+ Sixel,
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+ Chafa,
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+ W3m,
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+ Iterm2,
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+ Off,
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+}
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+
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+impl Backend {
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+ pub fn from_str(s: &str) -> Self {
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+ match s.to_lowercase().as_str() {
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+ "kitty" => Backend::Kitty,
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+ "sixel" => Backend::Sixel,
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+ "chafa" => Backend::Chafa,
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+ "w3m" | "w3mimgdisplay" => Backend::W3m,
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+ "iterm2" | "iterm" => Backend::Iterm2,
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+ "off" => Backend::Off,
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+ "auto" => Backend::Ascii, // Default: auto-detection is handled in main.rs
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+ _ => Backend::Ascii,
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+ }
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+ }
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+
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+ /// Check if the terminal supports this backend.
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+ #[allow(dead_code)]
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+ pub fn is_supported(&self) -> bool {
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+ match self {
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+ Backend::Ascii | Backend::Off => true,
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+ Backend::Kitty => {
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+ // Kitty is supported if TERM contains "kitty" or KITTY_PID is set
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+ std::env::var("KITTY_PID").is_ok()
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+ || std::env::var("TERM")
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+ .unwrap_or_default()
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+ .contains("kitty")
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+ || std::env::var("TERM_PROGRAM")
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+ .unwrap_or_default()
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+ .contains("kitty")
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+ }
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