3ee1a07f09
Updates all dependencies other than ICU. Enables the `dbus-config` libcosmic feature to fix theming responsiveness. Also prevents the trash and network drive layer container from touching the edge of the window.
98 lines
3 KiB
Rust
98 lines
3 KiB
Rust
// SPDX-License-Identifier: GPL-3.0-only
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use cosmic::widget::icon;
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use mime_guess::Mime;
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use std::{
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collections::HashMap,
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fs,
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path::Path,
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sync::{LazyLock, Mutex},
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};
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pub const FALLBACK_MIME_ICON: &str = "text-x-generic";
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#[derive(Debug, Eq, Hash, PartialEq)]
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struct MimeIconKey {
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mime: Mime,
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size: u16,
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}
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struct MimeIconCache {
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cache: HashMap<MimeIconKey, Option<icon::Handle>>,
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shared_mime_info: xdg_mime::SharedMimeInfo,
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}
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impl MimeIconCache {
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pub fn new() -> Self {
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Self {
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cache: HashMap::new(),
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shared_mime_info: xdg_mime::SharedMimeInfo::new(),
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}
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}
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pub fn get(&mut self, key: MimeIconKey) -> Option<icon::Handle> {
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self.cache
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.entry(key)
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.or_insert_with_key(|key| {
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let mut icon_names = self.shared_mime_info.lookup_icon_names(&key.mime);
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if icon_names.is_empty() {
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return None;
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}
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let icon_name = icon_names.remove(0);
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let mut named = icon::from_name(icon_name).size(key.size);
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if !icon_names.is_empty() {
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let mut fallback_names = Vec::with_capacity(icon_names.len());
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for fallback_name in icon_names {
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fallback_names.push(fallback_name.into());
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}
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named = named.fallback(Some(icon::IconFallback::Names(fallback_names)));
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}
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Some(named.handle())
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})
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.clone()
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}
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}
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static MIME_ICON_CACHE: LazyLock<Mutex<MimeIconCache>> =
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LazyLock::new(|| Mutex::new(MimeIconCache::new()));
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pub fn mime_for_path<P: AsRef<Path>>(
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path: P,
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metadata_opt: Option<&fs::Metadata>,
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remote: bool,
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) -> Mime {
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let path = path.as_ref();
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let mime_icon_cache = MIME_ICON_CACHE.lock().unwrap();
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// Try the shared mime info cache first
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let mut gb = mime_icon_cache.shared_mime_info.guess_mime_type();
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if remote {
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if let Some(file_name) = path.file_name().and_then(|x| x.to_str()) {
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gb.file_name(file_name);
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}
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} else {
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gb.path(&path);
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}
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if let Some(metadata) = metadata_opt {
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gb.metadata(metadata.clone());
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}
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let guess = gb.guess();
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if guess.uncertain() {
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// If uncertain, try mime_guess. This could happen on platforms without shared-mime-info
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mime_guess::from_path(&path).first_or_octet_stream()
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} else {
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guess.mime_type().clone()
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}
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}
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pub fn mime_icon(mime: Mime, size: u16) -> icon::Handle {
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let mut mime_icon_cache = MIME_ICON_CACHE.lock().unwrap();
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match mime_icon_cache.get(MimeIconKey { mime, size }) {
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Some(handle) => handle,
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None => icon::from_name(FALLBACK_MIME_ICON).size(size).handle(),
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}
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}
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pub fn parent_mime_types(mime: &Mime) -> Option<Vec<Mime>> {
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let mime_icon_cache = MIME_ICON_CACHE.lock().unwrap();
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mime_icon_cache.shared_mime_info.get_parents_aliased(mime)
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}
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