fmt

.github/workflows/release.yml

@@ -1,59 +0,0 @@
-permissions:
-  contents: write
-  actions: read
-  checks: write
-  deployments: write
-  issues: write
-  packages: write
-  pull-requests: write
-  statuses: write
-
-on:
-  release:
-    types: [created]
-
-jobs:
-  release:
-    name: release ${{ matrix.target }}
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        target: 
-          # Temporarily disabling Windows compilation
-          # - x86_64-pc-windows-gnu
-          - x86_64-unknown-linux-musl
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Set up Rust
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          override: true
-
-      - name: Install target
-        run: rustup target add ${{ matrix.target }}
-
-      - name: Check Rust target installation
-        run: rustup target list --installed
-
-      - name: Compile the app
-        run: |
-          echo "Compiling for target: ${{ matrix.target }}"
-          cargo build --release --target ${{ matrix.target }}
-      
-      - name: Create tarball
-        run: |
-          release_tag=${{ github.event.release.tag_name }}
-          tar -czvf calcifer_v${release_tag}.tar.gz -C target/${{ matrix.target }}/release calcifer
-
-      - name: Upload release assets
-        uses: actions/upload-release-asset@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          upload_url: ${{ github.event.release.upload_url }}
-          asset_path: calcifer_v${{ github.event.release.tag_name }}.tar.gz
-          asset_name: calcifer_v${{ github.event.release.tag_name }}.tar.gz
-          asset_content_type: application/gzip

calcifer.project

@@ -1 +1 @@
-{"categories":[{"name":"to do","content":[{"name":"update workflow .yml","description":"make a workflow compiling the calcifer and put the linux in calcifer-{version}\nand the windows in calcifer_windows_{version}\n\nupdate nix\nupdate jiji","id":5}]},{"name":"in progress","content":[{"name":"export copy paste fix","description":"// Hello there","id":1}]},{"name":"done","content":[{"name":"move .project file","description":"// Hello there","id":4},{"name":"move config","description":"config from .calcifer/save.json\nto .config/calcifer/state.json","id":1},{"name":"add id to textarea per tab","description":"to improve undo, make each code area of each tab have a unique id (no more undo into another tab)","id":1},{"name":"file tree id ?","description":"// Hello there","id":1},{"name":"open dir in tree ?","description":"// Hello there","id":2},{"name":"fix tab title","description":"// Hello there","id":2}]},{"name":"+","content":[]}]}
+{"categories":[{"name":"to do","content":[{"name":"update workflow .yml","description":"make a workflow compiling the calcifer and put the linux in calcifer-{version}\nand the windows in calcifer_windows_{version}\n\nupdate nix\nupdate jiji","id":5},{"name":"draggable item for project mode","description":"// Hello there","id":2}]},{"name":"in progress","content":[]},{"name":"done","content":[{"name":"move .project file","description":"// Hello there","id":4},{"name":"move config","description":"config from .calcifer/save.json\nto .config/calcifer/state.json","id":1},{"name":"add id to textarea per tab","description":"to improve undo, make each code area of each tab have a unique id (no more undo into another tab)","id":1},{"name":"file tree id ?","description":"// Hello there","id":1},{"name":"open dir in tree ?","description":"// Hello there","id":2},{"name":"fix tab title","description":"// Hello there","id":2},{"name":"when closing last tab","description":"close tab and THEN close calcifer (to save no tab in save.json)","id":1},{"name":"draggable tabs","description":"// Hello there","id":2},{"name":"repair build.rs","description":"// Hello there","id":1},{"name":"export copy paste fix","description":"// Hello there","id":1}]},{"name":"bug","content":[{"name":"ctrl f ","description":"I had crash when going up in the selection","id":1}]},{"name":"+","content":[]}]}

shell.nix

@@ -9,7 +9,7 @@ mkShell {
     libXi
     pkg-config
   ] ++ [
-    cargo
+    #cargo
     rustc
     atk
     gdk-pixbuf
@@ -19,12 +19,12 @@ mkShell {
     libGLU
     libxkbcommon
     gtk3-x11
-    gnome.zenity
+    #gnome.zenity
   ];
   buildInputs = [
     latest.rustChannels.stable.rust
     xorg.libX11
-    wayland
+    # wayland
     libxkbcommon
   ];
 

src/core/app.rs

@@ -1,6 +1,6 @@
 use eframe::egui;
 use egui::Color32;
-use std::{cmp::min, fs, path::Path, path::PathBuf};
+use std::{cmp::max, cmp::min, fs, path::Path, path::PathBuf};
 
 use crate::core;
 use crate::editor::themes::DEFAULT_THEMES;
@@ -45,22 +45,23 @@ impl Calcifer {
     pub fn save_tab_as(&self) -> Option<PathBuf> {
         let default_path = self.home.join("untitled");
 
-		let save_path = if self.tabs[self.selected_tab].path.file_name().map_or(true, |name| name.to_string_lossy() == "untitled")
+        let save_path = if self.tabs[self.selected_tab]
+            .path
+            .file_name()
+            .map_or(true, |name| name.to_string_lossy() == "untitled")
         {
             default_path.to_string_lossy()
         } else {
             self.tabs[self.selected_tab].path.to_string_lossy()
         };
-		println!("app : tried to open dialog at {}", save_path);
-//		if let Some(path_string) = tinyfiledialogs::save_file_dialog("Save as", &save_path)
-//		{
-//			let path = PathBuf::from(path_string);
-//			if let Err(err) = fs::write(&path, &self.tabs[self.selected_tab].code) {
-//				eprintln!("Error writing file: {}", err);
-//				return None;
-//			}
-//			return Some(path);
-//		}
+        if let Some(path_string) = tinyfiledialogs::save_file_dialog("Save as", &save_path) {
+            let path = PathBuf::from(path_string);
+            if let Err(err) = fs::write(&path, &self.tabs[self.selected_tab].code) {
+                eprintln!("Error writing file: {}", err);
+                return None;
+            }
+            return Some(path);
+        }
         None
     }
 
@@ -156,8 +157,10 @@ impl Calcifer {
 
     pub fn delete_tab(&mut self, index: usize) {
         self.tabs.remove(index);
+        if self.tabs.len() != 0 {
             self.selected_tab = min(index, self.tabs.len() - 1);
         }
+    }
 
     pub fn toggle(&self, ui: &mut egui::Ui, display: bool, title: &str) -> bool {
         let bg_color: Color32;
@@ -237,6 +240,10 @@ impl Calcifer {
 
         false
     }
+
+    pub fn tab_area_size(&self) -> usize {
+        max(6, self.tabs.len() + 1)
+    }
 }
 
 #[allow(clippy::unnecessary_lazy_evaluations)]

src/core/state.rs

@@ -1,5 +1,7 @@
 use eframe::egui;
 use image::GenericImageView;
+use serde::Deserialize;
+use serde::Serialize;
 use std::{
     error::Error,
     fs,
@@ -7,8 +9,6 @@ use std::{
     io::Write,
     path::{Path, PathBuf},
 };
-use serde::Serialize;
-use serde::Deserialize;
 
 #[derive(Serialize, Deserialize, Debug, PartialEq, Default)]
 pub struct AppState {

src/core/ui.rs

@@ -1,7 +1,7 @@
 use eframe::egui;
 use egui::{text::CCursor, text_edit::CCursorRange, Rangef};
 use egui_extras::{Size, StripBuilder};
-use std::{cmp::max, env, ffi::OsStr, path::Component, path::Path, path::PathBuf};
+use std::{cmp::max, cmp::min, env, ffi::OsStr, path::Component, path::Path, path::PathBuf};
 
 use crate::core;
 use crate::editor;
@@ -22,23 +22,37 @@ impl Calcifer {
             .show(ctx, |ui| {
                 ui.vertical(|ui| {
                     if ui.add(egui::Button::new("📁")).clicked() {
-						println!("ui : open file, wip");
-//						if let Some(path_string) = tinyfiledialogs::open_file_dialog("Open File", &self.home.to_string_lossy(), None)
-//						{
-//							self.open_file(Some(&Path::new(&path_string)));
-//						}
+                        if let Some(path_string) = tinyfiledialogs::open_file_dialog(
+                            "Open File",
+                            &self.home.to_string_lossy(),
+                            None,
+                        ) {
+                            self.open_file(Some(&Path::new(&path_string)));
+                        }
                     }
                     ui.separator();
+
                     self.tree_visible = self.toggle(ui, self.tree_visible, "📦");
                     ui.separator();
-					self.terminal_visible = self.toggle(ui, self.terminal_visible, "🖵");
+
+                    let toggle_terminal = self.toggle(ui, self.terminal_visible, "🖵");
+                    if toggle_terminal && !self.terminal_visible {
+                        let mut path = self.tabs[self.selected_tab].path.clone();
+                        path.pop();
+                        panels::send_command(format!("cd {}", path.display()));
+                    }
+                    self.terminal_visible = toggle_terminal;
                     ui.separator();
+
                     self.search_menu.visible = self.toggle(ui, self.search_menu.visible, "🔍");
                     ui.separator();
+
                     self.settings_menu.visible = self.toggle(ui, self.settings_menu.visible, "⚙");
                     ui.separator();
+
                     self.shortcuts_menu.visible = self.toggle(ui, self.shortcuts_menu.visible, "⌨");
                     ui.separator();
+
                     self.profiler_visible = self.toggle(ui, self.profiler_visible, "⚡");
 
                     if self.tabs[self.selected_tab].language == PROJECT_EXTENSION {
@@ -197,8 +211,8 @@ impl Calcifer {
                     0.0,
                     core::hex_str_to_color(self.theme.bg),
                 );
-				StripBuilder::new(ui)
-					.sizes(Size::remainder(), max(6, self.tabs.len() + 1))
+                let response = StripBuilder::new(ui)
+                    .sizes(Size::remainder(), self.tab_area_size())
                     .sense(egui::Sense::click())
                     .horizontal(|mut strip| {
                         for (index, tab) in self.tabs.clone().iter().enumerate() {
@@ -227,24 +241,18 @@ impl Calcifer {
                                             .clicked()
                                             && !self.close_tab_confirm.visible
                                         {
-											if self.tabs.len() > 1 {
                                             if tab.saved {
                                                 self.delete_tab(index);
                                             } else {
                                                 self.close_tab_confirm.ask();
                                                 self.tab_to_close = index;
                                             }
-											} else {
-												egui::Context::send_viewport_cmd(
-													ctx,
-													egui::ViewportCommand::Close,
-												);
-											}
                                         }
                                         ui.with_layout(
                                             egui::Layout::left_to_right(egui::Align::TOP),
                                             |ui| {
-													if ui.add(
+                                                if ui
+                                                    .add(
                                                         egui::Label::new(
                                                             egui::RichText::new(format!(
                                                                 " {}{}",
@@ -256,8 +264,14 @@ impl Calcifer {
                                                         .truncate(true)
                                                         .sense(egui::Sense::click()),
                                                     )
-													.clicked() ||
-													ui.add_sized(ui.available_size(), egui::Label::new("").sense(egui::Sense::click())).clicked()
+                                                    .clicked()
+                                                    || ui
+                                                        .add_sized(
+                                                            ui.available_size(),
+                                                            egui::Label::new("")
+                                                                .sense(egui::Sense::click()),
+                                                        )
+                                                        .clicked()
                                                 {
                                                     self.selected_tab = index;
                                                 }
@@ -269,30 +283,32 @@ impl Calcifer {
                         }
                         strip.cell(|ui| {
                             if ui
-								.add(egui::Label::new("  +").sense(egui::Sense::click()))
+                                .add(egui::Label::new("  ➕").sense(egui::Sense::click()))
                                 .clicked()
                             {
                                 self.open_file(None);
                             }
                         });
                     });
+                self.tab_rect = response.rect;
             });
     }
 
     pub fn draw_content_panel(&mut self, ctx: &egui::Context) {
         egui::CentralPanel::default().show(ctx, |ui| {
-			ui.horizontal(|ui| {
-				if ui
-					.add(egui::Button::new("open directory in terminal"))
-					.clicked()
-				{
-					let mut path = self.tabs[self.selected_tab].path.clone();
-					path.pop();
-					panels::send_command(format!("cd {}", path.display()));
+            if self.selected_tab >= self.tabs.len() {
+                return;
             }
-				
+            ui.horizontal(|ui| {
+                ui.style_mut().visuals.hyperlink_color =
+                    core::hex_str_to_color(self.theme.comments);
                 if ui
-					.add(egui::Button::new("expand tree"))
+                    .link(
+                        self.tabs[self.selected_tab]
+                            .path
+                            .to_string_lossy()
+                            .to_string(),
+                    )
                     .clicked()
                 {
                     let mut current_path = self.tabs[self.selected_tab].path.clone();
@@ -309,14 +325,6 @@ impl Calcifer {
                     self.tree_visible = true;
                     self.file_tree = None;
                 }
-
-				ui.label("Picked file:");
-				ui.monospace(
-					self.tabs[self.selected_tab]
-						.path
-						.to_string_lossy()
-						.to_string(),
-				);
             });
 
             ui.separator();
@@ -359,7 +367,7 @@ impl Calcifer {
                     &mut current_tab.scroll_offset.clone(),
                     override_cursor.clone(),
                 );
-			return
+            return;
         }
 
         CodeEditor::default()
@@ -386,6 +394,32 @@ impl Calcifer {
             .update_from_code(current_tab.code.clone());
         panels::draw_project(ui, self.theme, &mut self.project_content);
 
+        self.project_content.selected_item.category = min(
+            self.project_content.categories.len() - 2,
+            self.project_content.selected_item.category,
+        );
+        while self.project_content.categories[self.project_content.selected_item.category]
+            .content
+            .is_empty()
+            && self.project_content.selected_item.category > 0
+        {
+            self.project_content.selected_item.category -= 1;
+        }
+        if !self.project_content.categories[self.project_content.selected_item.category]
+            .content
+            .is_empty()
+        {
+            self.project_content.selected_item.row = min(
+                self.project_content.categories[self.project_content.selected_item.category]
+                    .content
+                    .len()
+                    - 1,
+                self.project_content.selected_item.row,
+            );
+        } else {
+            self.project_content.selected_item.row = 0;
+        }
+
         if self.project_content.item_window.visible {
             if self.project_content.categories.len() > 1
                 && !self.project_content.categories[self.project_content.selected_item.category]
@@ -401,10 +435,16 @@ impl Calcifer {
 
                 if delete_item {
                     self.project_content.item_window.visible = false;
-					self.project_content.categories
+                    self.project_content.categories[self.project_content.selected_item.category]
+                        .content
+                        .remove(self.project_content.selected_item.row);
+                    if self.project_content.selected_item.row
+                        >= self.project_content.categories
                             [self.project_content.selected_item.category]
-						.content.remove(self.project_content.selected_item.row);
-					if self.project_content.selected_item.row >= self.project_content.categories[self.project_content.selected_item.category].content.len() && self.project_content.selected_item.row > 0 {
+                            .content
+                            .len()
+                        && self.project_content.selected_item.row > 0
+                    {
                         self.project_content.selected_item.row -= 1;
                     }
                 }
@@ -456,6 +496,120 @@ impl Calcifer {
 
         self.handle_confirm();
     }
+
+    pub fn draw_mouse_drag(&mut self, ctx: &egui::Context) {
+        if ctx.input(|i| i.pointer.is_decidedly_dragging()) {
+            if let Some(pos) = ctx.input(|i| i.pointer.interact_pos()) {
+                match self.mouse_holder {
+                    panels::MouseHolder::TabHolder(index) => {
+                        let snapped_pos = egui::Pos2::new(
+                            pos.x,
+                            (self.tab_rect.max.y + self.tab_rect.min.y) / 2.0,
+                        );
+
+                        egui::Area::new(egui::Id::new("mouse_holder"))
+                            .fixed_pos(snapped_pos)
+                            .show(ctx, |ui| {
+                                let (bg_color, text_color) = if self.selected_tab == index {
+                                    (
+                                        core::hex_str_to_color(self.theme.functions),
+                                        core::hex_str_to_color(self.theme.bg),
+                                    )
+                                } else {
+                                    (
+                                        core::hex_str_to_color(self.theme.bg),
+                                        core::hex_str_to_color(self.theme.comments),
+                                    )
+                                };
+
+                                let rect = egui::Rect::from_center_size(
+                                    snapped_pos,
+                                    egui::Vec2::new(
+                                        (self.tab_rect.max.x - self.tab_rect.min.x)
+                                            / usize_to_f32(self.tab_area_size()),
+                                        self.tab_rect.max.y - self.tab_rect.min.y,
+                                    ),
+                                );
+
+                                ui.painter().rect_filled(rect, 0.0, bg_color);
+                                let unsaved_indicator =
+                                    if self.tabs[index].saved { "" } else { "~ " };
+
+                                let _ = ui.put(
+                                    rect,
+                                    egui::Label::new(
+                                        egui::RichText::new(format!(
+                                            " {}{}",
+                                            unsaved_indicator,
+                                            self.tabs[index].get_name()
+                                        ))
+                                        .color(text_color),
+                                    ),
+                                );
+                            });
+                    }
+                    panels::MouseHolder::None => {
+                        if self.tab_rect.distance_to_pos(pos) == 0.0 {
+                            let hover_pos: f32 = (pos.x - self.tab_rect.min.x)
+                                / ((self.tab_rect.max.x - self.tab_rect.min.x)
+                                    / usize_to_f32(self.tab_area_size()));
+
+                            if let Some(index) = floor_f32(hover_pos) {
+                                if index < self.tabs.len() {
+                                    self.mouse_holder = panels::MouseHolder::TabHolder(index);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            return;
+        }
+
+        match self.mouse_holder {
+            panels::MouseHolder::TabHolder(initial_index) => {
+                if let Some(pos) = ctx.input(|i| i.pointer.interact_pos()) {
+                    let snapped_pos =
+                        egui::Pos2::new(pos.x, (self.tab_rect.max.y + self.tab_rect.min.y) / 2.0);
+                    if self.tab_rect.distance_to_pos(snapped_pos) == 0.0 {
+                        let hover_pos: f32 = (pos.x - self.tab_rect.min.x)
+                            / ((self.tab_rect.max.x - self.tab_rect.min.x)
+                                / usize_to_f32(self.tab_area_size()));
+
+                        if let Some(final_index) = floor_f32(hover_pos) {
+                            if final_index == initial_index {
+                                return;
+                            } else if final_index < initial_index {
+                                self.tabs
+                                    .insert(final_index, self.tabs[initial_index].clone());
+                                self.tabs.remove(initial_index + 1);
+                            } else {
+                                self.tabs
+                                    .insert(final_index + 1, self.tabs[initial_index].clone());
+                                self.tabs.remove(initial_index);
+                            }
+
+                            if self.selected_tab == initial_index {
+                                self.selected_tab = final_index;
+                            } else if self.selected_tab < initial_index
+                                && self.selected_tab >= final_index
+                            {
+                                self.selected_tab += 1;
+                            } else if self.selected_tab > initial_index
+                                && self.selected_tab <= final_index
+                            {
+                                self.selected_tab -= 1;
+                            }
+                        }
+                    }
+                }
+            }
+
+            panels::MouseHolder::None => {}
+        }
+
+        self.mouse_holder = panels::MouseHolder::None;
+    }
 }
 
 fn to_syntax(language: &str) -> Syntax {
@@ -488,3 +642,21 @@ pub fn format_path(path: &Path) -> String {
             .join("/")
     )
 }
+
+fn usize_to_f32(value: usize) -> f32 {
+    const MAX_F32: f32 = f32::MAX;
+
+    if value as f64 > MAX_F32 as f64 {
+        MAX_F32
+    } else {
+        value as f32
+    }
+}
+
+fn floor_f32(value: f32) -> Option<usize> {
+    if value.is_nan() || value < 0.0 || value > usize::MAX as f32 {
+        None
+    } else {
+        Some(value.floor() as usize)
+    }
+}

src/editor/syntax/javascript.rs

@@ -9,14 +9,79 @@ impl Syntax {
             comment: "//",
             comment_multiline: ["/*", "*/"],
             keywords: BTreeSet::from([
-				"&&", "||", "!", "let", "var", "abstract", "arguments", "await", "break", "case", "catch", "class", "const", "continue",
-				"debugger", "default", "delete", "do", "else", "enum", "eval", "export", "extends", "final", "finally", "for", "function",
-				"goto", "if", "implements", "import", "in", "instanceof", "interface", "let", "native", "new", "package", "private", "protected",
-				"public", "return", "static", "super", "switch", "synchronized", "this","throw", "throws", "transient", "try", "typeof", 
-				"var", "volatile", "while", "with", "yield",
+                "&&",
+                "||",
+                "!",
+                "let",
+                "var",
+                "abstract",
+                "arguments",
+                "await",
+                "break",
+                "case",
+                "catch",
+                "class",
+                "const",
+                "continue",
+                "debugger",
+                "default",
+                "delete",
+                "do",
+                "else",
+                "enum",
+                "eval",
+                "export",
+                "extends",
+                "final",
+                "finally",
+                "for",
+                "function",
+                "goto",
+                "if",
+                "implements",
+                "import",
+                "in",
+                "instanceof",
+                "interface",
+                "let",
+                "native",
+                "new",
+                "package",
+                "private",
+                "protected",
+                "public",
+                "return",
+                "static",
+                "super",
+                "switch",
+                "synchronized",
+                "this",
+                "throw",
+                "throws",
+                "transient",
+                "try",
+                "typeof",
+                "var",
+                "volatile",
+                "while",
+                "with",
+                "yield",
             ]),
             types: BTreeSet::from([
-				"Boolean", "Number", "BigInt", "Undefined", "Null", "String", "Symbol", "byte", "char", "float", "int", "long", "short", "void",
+                "Boolean",
+                "Number",
+                "BigInt",
+                "Undefined",
+                "Null",
+                "String",
+                "Symbol",
+                "byte",
+                "char",
+                "float",
+                "int",
+                "long",
+                "short",
+                "void",
             ]),
             special: BTreeSet::from(["false", "null", "true"]),
         }

src/main.rs

@@ -4,9 +4,9 @@ use egui::{
     TextStyle::{Body, Button, Heading, Monospace, Small},
 };
 use homedir::get_my_home;
-use std::{ops::Range, path::PathBuf, sync::Arc, thread, time};
 use std::env;
 use std::time::Duration;
+use std::{ops::Range, path::PathBuf, sync::Arc, thread, time};
 
 mod core;
 mod editor;
@@ -25,7 +25,13 @@ const TERMINAL_HEIGHT: f32 = 200.0;
 const TERMINAL_RANGE: Range<f32> = 100.0..600.0;
 const RED: egui::Color32 = egui::Color32::from_rgb(235, 108, 99);
 const TIME_LABELS: [&str; 7] = [
-	"input", "settings", "tree", "terminal", "tabs", "content", "windows",
+    "input",
+    "settings",
+    "tree",
+    "terminal+tray",
+    "tabs",
+    "content",
+    "windows",
 ];
 const ZOOM_FACTOR: f32 = 1.1;
 const MAX_FPS: f32 = 30.0;
@@ -63,6 +69,8 @@ fn main() -> Result<(), eframe::Error> {
         None
     };
 
+    //panels::send_command("export RUSTFLAGS=--cfg=web_sys_unstable_apis".to_string());
+
     eframe::run_native(
         &format!("Calcifer{}", TITLE),
         options,
@@ -76,6 +84,8 @@ struct Calcifer {
 
     selected_tab: usize,
     tabs: Vec<panels::Tab>,
+    tab_rect: egui::Rect,
+    mouse_holder: panels::MouseHolder,
 
     command: String,
     command_history: Vec<panels::CommandEntry>,
@@ -117,6 +127,8 @@ impl Default for Calcifer {
 
             selected_tab: 0,
             tabs: vec![panels::Tab::default()],
+            tab_rect: egui::Rect::EVERYTHING,
+            mouse_holder: panels::MouseHolder::None,
 
             command: String::new(),
             command_history: Vec::new(),
@@ -201,7 +213,8 @@ impl eframe::App for Calcifer {
             }
         }
 
-		if ctx.input(|i| i.key_pressed(egui::Key::Enter)) && ctx.memory(|m| m.focus() == None)
+        if ctx.input(|i| i.key_pressed(egui::Key::Enter))
+            && ctx.memory(|m| m.focus() == None)
             && self.tabs[self.selected_tab].language == PROJECT_EXTENSION
         {
             self.project_content.item_window.visible = true;
@@ -267,6 +280,11 @@ impl eframe::App for Calcifer {
             }
         }
 
+        if self.tabs.len() == 0 {
+            egui::Context::send_viewport_cmd(ctx, egui::ViewportCommand::Close);
+            return;
+        }
+
         self.time_watch[0] = watch.elapsed().as_micros() as f32 / 1000.0;
         watch = time::Instant::now();
 
@@ -297,11 +315,15 @@ impl eframe::App for Calcifer {
         watch = time::Instant::now();
 
         self.draw_windows(ctx);
+        self.draw_mouse_drag(ctx);
 
         self.time_watch[6] = watch.elapsed().as_micros() as f32 / 1000.0;
 
         if self.running_command {
-			egui::Context::request_repaint_after(ctx, Duration::from_secs_f32(RUNNING_COMMAND_REFRESH_DELAY));
+            egui::Context::request_repaint_after(
+                ctx,
+                Duration::from_secs_f32(RUNNING_COMMAND_REFRESH_DELAY),
+            );
         }
     }
 

src/panels/file_tree.rs

@@ -1,14 +1,14 @@
+use std::hash::DefaultHasher;
+use std::hash::Hash;
+use std::hash::Hasher;
+use std::time::SystemTime;
+use std::time::UNIX_EPOCH;
 use std::{
     cmp::Ordering,
     ffi::OsStr,
     fs, io,
     path::{Path, PathBuf},
 };
-use std::hash::DefaultHasher;
-use std::time::UNIX_EPOCH;
-use std::time::SystemTime;
-use std::hash::Hasher;
-use std::hash::Hash;
 
 //use crate::ALLOWED_FILE_EXTENSIONS;
 
@@ -42,7 +42,10 @@ impl FileEntry {
     }
 
     fn generate_unique_id(path: PathBuf) -> String {
-        let now = SystemTime::now().duration_since(UNIX_EPOCH).unwrap().as_secs();
+        let now = SystemTime::now()
+            .duration_since(UNIX_EPOCH)
+            .unwrap()
+            .as_secs();
 
         let mut hasher = DefaultHasher::new();
         now.hash(&mut hasher);

src/panels/project_mode.rs

@@ -1,7 +1,6 @@
 use eframe::egui;
 use serde::{Deserialize, Serialize};
 use std::{
-	cmp::min,
     cmp::max,
     sync::atomic::{AtomicUsize, Ordering},
 };
@@ -124,7 +123,9 @@ fn get_id() -> usize {
 }
 
 pub fn draw_project(ui: &mut egui::Ui, theme: ColorTheme, project: &mut Project) {
-	ui.columns(max(MAX_PROJECT_COLUMNS, project.categories.len() + 1) , |uis| {
+    ui.columns(
+        max(MAX_PROJECT_COLUMNS, project.categories.len() + 1),
+        |uis| {
             for (category_index, category) in project.categories.clone().into_iter().enumerate() {
                 let ui = &mut uis[category_index];
 
@@ -152,7 +153,8 @@ pub fn draw_project(ui: &mut egui::Ui, theme: ColorTheme, project: &mut Project)
                             row: item_index,
                         })
                     {
-					ui.style_mut().visuals.override_text_color = Some(hex_str_to_color(theme.bg));
+                        ui.style_mut().visuals.override_text_color =
+                            Some(hex_str_to_color(theme.bg));
                         ui.add(
                             egui::Button::new(item.name.clone())
                                 .fill(hex_str_to_color(theme.functions)),
@@ -161,7 +163,10 @@ pub fn draw_project(ui: &mut egui::Ui, theme: ColorTheme, project: &mut Project)
                         ui.style_mut().visuals.override_text_color =
                             Some(hex_str_to_color(theme.literals));
                         if ui
-						.add(egui::Button::new(item.name.clone()).fill(hex_str_to_color(theme.bg)))
+                            .add(
+                                egui::Button::new(item.name.clone())
+                                    .fill(hex_str_to_color(theme.bg)),
+                            )
                             .clicked()
                         {
                             project.selected_item = Location {
@@ -171,22 +176,15 @@ pub fn draw_project(ui: &mut egui::Ui, theme: ColorTheme, project: &mut Project)
                         }
                     }
                 }
-			ui.style_mut().visuals.override_text_color =
-				Some(hex_str_to_color(theme.literals));
+                ui.style_mut().visuals.override_text_color = Some(hex_str_to_color(theme.literals));
                 if category.name != "+" && ui.add(egui::Button::new("+")).clicked() {
                     project.categories[category_index]
                         .content
                         .push(Item::new("item"));
                 }
-			//			if category.name != "+" {
-			//				if ui.add(egui::Button::new("+")).clicked() {
-			//					project.categories[category_index]
-			//						.content
-			//						.push(Item::new("item"));
-			//				}
-			//			}
             }
-	});
+        },
+    );
 
     let mut moved = false;
     let category = project.selected_item.category;
@@ -238,23 +236,15 @@ pub fn draw_project(ui: &mut egui::Ui, theme: ColorTheme, project: &mut Project)
         && project.selected_item.category > 0
     {
         moved = true;
-		if !project.was_moving {
+        if !project.was_moving && project.categories[category - 1].content.len() > 0 {
             project.selected_item.category -= 1;
-			project.selected_item.row = min(
-				project.categories[category].content.len() - 1,
-				project.selected_item.row,
-			);
         }
     } else if ui.input(|i| i.key_pressed(egui::Key::ArrowRight))
         && project.selected_item.category < project.categories.len() - 2
     {
         moved = true;
-		if !project.was_moving {
+        if !project.was_moving && project.categories[category + 1].content.len() > 0 {
             project.selected_item.category += 1;
-			project.selected_item.row = min(
-				project.categories[category].content.len() - 1,
-				project.selected_item.row,
-			);
         }
     } else if ui.input(|i| i.key_pressed(egui::Key::ArrowUp)) && project.selected_item.row > 0 {
         moved = true;

src/panels/tabs.rs

@@ -61,6 +61,11 @@ impl Tab {
     }
 }
 
+pub enum MouseHolder {
+    TabHolder(usize),
+    None,
+}
+
 fn read_file_contents(path: &Path) -> String {
     let error_type = "reading file";
     read_to_string(path)

src/sub_windows/project_item.rs

@@ -22,10 +22,10 @@ impl ProjectItemWindow {
 
         if let Some(response) = maybe_response {
             if let Some(delete_option) = response.inner {
-				return delete_option
+                return delete_option;
             }
         }
-		return false
+        return false;
     }
 
     fn ui(&mut self, ui: &mut egui::Ui, item: &mut panels::Item) -> bool {
@@ -43,6 +43,6 @@ impl ProjectItemWindow {
             ui.available_size(),
             egui::TextEdit::multiline(&mut item.description),
         );
-		return delete_item.clone()
+        return delete_item.clone();
     }
 }