Working on keyboard stage, closures!

src/stages/keyboard/mod.rs

@@ -15,131 +15,205 @@
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 /*
-   This is TimeZone stage, used to select timezone
+   This is Keyboar stage, used to select Keyboard Layouts
 */
 
+use crate::kira_scroll_list;
 use crate::stage::{ConfigValue, StageAction, StageResult};
 use iced::{Alignment, Length, widget};
 use rust_i18n::t;
 use std::collections::HashMap;
 
-mod scroll_list;
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct Layout {
+    layout: String,
+    description: String,
+}
+
+impl Layout {
+    pub fn from_str_touple(v: &(&str, &str)) -> Self {
+        Self {
+            layout: v.0.trim().to_string(),
+            description: v.1.trim().to_string(),
+        }
+    }
+}
 
 #[derive(Debug, Clone, PartialEq, Eq)]
-pub struct TimeZoneData {
-    region: String,
-    zone: String,
+pub struct Variant {
+    variant: String,
+    description: String,
 }
 
-impl TimeZoneData {
-    fn from_str(s: &str) -> Option<Self> {
-        let idx = s.find('/')?;
-        let (region, zone) = s.split_at(idx);
-        Some(Self {
-            region: region.into(),
-            zone: zone.trim_start_matches('/').into(),
-        })
+impl Variant {
+    pub fn from_str_touple(v: &(&str, &str)) -> Self {
+        Self {
+            variant: v.0.trim().to_string(),
+            description: v.1.trim().to_string(),
+        }
     }
 }
 
-impl std::fmt::Display for TimeZoneData {
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct KeyboarLayout {
+    layout: Layout,
+    variant: Variant,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct KeyboarModel {
+    model: String,
+    description: String,
+}
+impl KeyboarModel {
+    pub fn from_str_touple(v: &(&str, &str)) -> Self {
+        Self {
+            model: v.0.trim().to_string(),
+            description: v.1.trim().to_string(),
+        }
+    }
+}
+
+
+impl std::fmt::Display for KeyboarLayout {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{}/{}", self.region, self.zone)
+        write!(f, "{}/{}", &self.layout.layout, &self.variant.variant)
     }
 }
 
 #[derive(Debug, Clone)]
-pub struct TimeZoneStage {
-    time_zones: Result<HashMap<String, Vec<String>>, String>,
-    regions: Vec<String>,
-    region_id: Option<usize>,
-    zones: Vec<String>,
-    zone_id: Option<usize>,
-    selected_zone: Option<TimeZoneData>,
-    selected_zone_text: String,
+pub struct KeyboardStage {
+    models: Vec<KeyboarModel>,
+    layouts: Vec<Layout>,
+    variants_map: HashMap<String, Vec<Variant>>,
+    variants:  Vec<Variant>,
+    model: Option<KeyboarModel>,
+    layout: Option<Layout>,
+    variant: Option<Variant>,
+    keyboard_layouts: Vec<KeyboarLayout>,
+    selected_kbd_layout_id: Option<usize>,
 }
 
 #[derive(Debug, Clone)]
 pub enum Message {
-    SelectRegion(scroll_list::ListViewMessage),
-    SelectZone(scroll_list::ListViewMessage),
+    SelectKeyboardModel(kira_scroll_list::ListViewMessage),
+    SelectLayout(kira_scroll_list::ListViewMessage),
+    SelectVariant(kira_scroll_list::ListViewMessage),
+
+    AddLayout(usize),
+    RemoveLayout(usize),
+    SelectAddedLayout(kira_scroll_list::ListViewMessage),
+
     Next,
     Back,
 }
 
-/// Getting list of awailable timezones from system.
-fn get_timezones_blocking() -> Result<Vec<TimeZoneData>, String> {
-    use std::process::Command;
-    //timedatectl list-timezones --no-pager
-    match Command::new("timedatectl")
-        .arg("list-timezones")
-        .arg("--no-pager")
-        .output()
+const XKB_RULES_FILE_NAME: &str = "/usr/share/X11/xkb/rules/evdev.lst";
+
+/// Getting list of awailable keyboard layouts from from xkb/rules/evdev.lst file.
+fn get_layouts_blocking() -> std::io::Result<(Vec<KeyboarModel>, Vec<Layout>, HashMap<String, Vec<Variant>>)> {
+    use std::fs::File;
+    use std::io::{BufReader, Read};
+
+    let mut file_content = String::new();
     {
-        Ok(cmd_output) => {
-            if cmd_output.status.success() {
-                //Etc/UTC
-                match String::from_utf8(cmd_output.stdout) {
-                    Ok(str_tz_list) => Ok(str_tz_list
-                        .split("\n")
-                        .filter(|sb| sb.contains('/'))
-                        .filter_map(|str_t_zone| TimeZoneData::from_str(str_t_zone.trim()))
-                        .collect::<Vec<TimeZoneData>>()),
-                    Err(ex) => Err(format!("Exception while converting to UTF8 {}", ex)),
-                }
-            } else {
-                Err(format!(
-                    "Error getting timezones list: {}",
-                    String::from_utf8(cmd_output.stderr).unwrap_or("UNKNOWN".into())
-                ))
-            }
-        }
-        Err(ex) => Err(format!("Exception while trying to list time zones {}", ex)),
-    }
+        let locgen_file = File::open(XKB_RULES_FILE_NAME)?;
+        let mut reader = BufReader::new(locgen_file);
+        reader.read_to_string(&mut file_content)?;
     }
 
-impl TimeZoneStage {
-    pub fn new() -> Self {
-        match get_timezones_blocking() {
-            Ok(time_zones_data_list) => {
-                let mut time_zones_map: HashMap<String, Vec<String>> = HashMap::new();
-                for tz_data in &time_zones_data_list {
-                    if let Some(zones) = time_zones_map.get_mut(&tz_data.region) {
-                        zones.push(tz_data.zone.clone());
-                    } else {
-                        time_zones_map.insert(tz_data.region.clone(), vec![tz_data.zone.clone()]);
-                    }
-                }
-                // sort zones alphabetically
-                time_zones_map.values_mut().for_each(|v| v.sort());
-                // sort region names alphabetically
-                let mut regions: Vec<String> = time_zones_map.keys().cloned().collect();
-                regions.sort();
+    let raw_sections: Vec<String> = file_content.split("! ").map(str::to_string).collect();
 
-                Self {
-                    regions: regions,
-                    zones: Vec::new(),
-                    time_zones: Ok(time_zones_map),
-                    region_id: None,
-                    zone_id: None,
-                    selected_zone: None,
-                    selected_zone_text: String::new(),
+
+    // Parsing models data
+    let models: Vec<KeyboarModel> = raw_sections
+        .iter()
+        .find(|s| s.starts_with("model"))
+        .and_then(|s| {
+            Some(
+                s.lines()
+                    .skip(1)
+                    .filter_map(|s| s.trim().split_once(char::is_whitespace))
+                    .map(|s_spl| KeyboarModel::from_str_touple(&s_spl))
+                    .collect(),
+            )
+        })
+        .unwrap_or_else(Vec::new);
+
+    // Parsing layots data
+    let layouts: Vec<Layout> = raw_sections
+        .iter()
+        .find(|s| s.starts_with("layout"))
+        .and_then(|s| {
+            Some(
+                s.lines()
+                    .skip(1)
+                    .filter_map(|s| s.trim().split_once(char::is_whitespace))
+                    .map(|s_spl| Layout::from_str_touple(&s_spl))
+                    .collect(),
+            )
+        })
+        .unwrap_or_else(Vec::new);
+
+    // parsing variants data to HashMap
+    let mut variants: HashMap<String, Vec<Variant>> = HashMap::new();
+
+    raw_sections
+        .iter()
+        .find(|s| s.starts_with("variant"))
+        .and_then(|s| {
+            Some(
+                s.lines()
+                    .skip(1)
+                    .filter_map(|s| s.trim().split_once(char::is_whitespace))
+                    .filter_map(|(vrnt, l_plus_descr)| {
+                        l_plus_descr
+                            .trim()
+                            .split_once(": ")
+                            .and_then(|(loc, descr)| {
+                                Some((loc.trim(), Variant::from_str_touple(&(vrnt, descr))))
+                            })
+                    })
+                    .for_each(|v| {
+                        let maybe_key = variants
+                            .get_mut(v.0)
+                            .and_then(|vrn_vec| Some(vrn_vec.push(v.1)));
+                        if maybe_key.is_none() {
+                            variants.insert(v.0.to_string(), vec![v.1]);
                         }
+                    }),
+            )
+        });
+
+    Ok((models, layouts, variants))
+}
+
+impl KeyboardStage {
+    pub fn new() -> Result<Self, String> {
+        match get_layouts_blocking() {
+            Ok((models, layouts, variants)) => {
+               
+
+                Ok(Self {
+                    
+    layouts: layouts,
+    variants_map: variants,
+    variants:  Vec::new(),
+    model: Some(models[0].clone()),
+    models: models,
+    layout: None,
+    variant: None,
+    keyboard_layouts: Vec::new(),
+    selected_kbd_layout_id: None,
+                }
+            )
             }
             Err(ex) => {
-                println!(
-                    "Exception while trying to get time zones list from system {}",
+                let err = format!(
+                    "Exception while trying to get kayboard layouts data from system {}",
                     ex
                 );
-                Self {
-                    time_zones: Err(ex),
-                    regions: Vec::new(),
-                    zones: Vec::new(),
-                    region_id: None,
-                    zone_id: None,
-                    selected_zone: None,
-                    selected_zone_text: String::new(),
-                }
+                Err(err)
             }
         }
     }

src/stages/mod.rs

@@ -20,3 +20,4 @@ pub mod license;
 pub mod network;
 pub mod timezone;
 pub mod locale;
+pub mod keyboard;