♻️ Use of the SCSS variables to compute the width of the inner panels

build.rs

@@ -1,4 +1,5 @@
 use std::env;
+use std::fmt::Display;
 use std::fs::File;
 use std::io::Write;
 use std::io::{self, BufRead};
@@ -10,14 +11,32 @@ use regex::Regex;
 fn main() {
     // Tell Cargo to rerun this build script if any SCSS file
     // in the 'src' directory or its subdirectories changes.
-    println!("cargo:rerun-if-changed=src/**/*.scss");
+    println!("cargo:rerun-if-changed=src/ui/**/*.scss");
 
     let out_dir = env::var("OUT_DIR").unwrap();
 
-    let style_src_path = PathBuf::from("src/ui/_base.scss");
+    let mut tasks = Vec::new();
-    let style_dst_path = Path::new(&out_dir).join("style_vars.rs");
 
-    export_color_variables(&style_src_path, &style_dst_path)
+    // Global tokens
+    tasks.push(Task::new(
+        PathBuf::from("src/ui/_base.scss"),
+        Path::new(&out_dir).join("style_tokens.rs"),
+        "style".to_string(),
+    ));
+    // variables defined by the Panel component
+    tasks.push(Task::new(
+        PathBuf::from("src/ui/components/_panel.scss"),
+        Path::new(&out_dir).join("style_component_panel.rs"),
+        "panel".to_string(),
+    ));
+    // Variables set by the Conversations layout
+    tasks.push(Task::new(
+        PathBuf::from("src/ui/layouts/conversations.scss"),
+        Path::new(&out_dir).join("style_layout_conversations.rs"),
+        "conversations".to_string(),
+    ));
+
+    export_variables(tasks)
 }
 
 // From https://doc.rust-lang.org/rust-by-example/std_misc/file/read_lines.html
@@ -32,14 +51,21 @@ where
 }
 
 #[derive(Debug)]
-struct CssColorVariable<'a> {
+struct ColorVariable {
-    name: &'a str,
+    name: String,
-    value: &'a str,
+    value: String,
 }
 
-impl<'a> CssColorVariable<'a> {
+impl ColorVariable {
-    pub fn to_rust(&self) -> String {
+    pub fn new(name: String, value: String) -> Self {
-        format!(
+        Self { name, value }
+    }
+}
+
+impl Display for ColorVariable {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(
+            f,
             "const {name}: &str = \"{value}\";",
             name = self.name.replace('-', "_").to_uppercase(),
             value = self.value
@@ -47,35 +73,83 @@ impl<'a> CssColorVariable<'a> {
     }
 }
 
-fn export_color_variables(src_path: &PathBuf, dst_path: &PathBuf) {
+#[derive(Debug)]
-    let mut dst_file = File::create(dst_path).unwrap();
+struct FloatVariable {
-    if let Err(err) = dst_file.write(b"#[allow(dead_code)]\nmod style {") {
+    name: String,
-        println!("{}", err);
+    value: f64,
-        return;
+}
-    };
 
-    let re = Regex::new(r"^\$([^:]+):[[:space:]]*#([^$]+);[[:space:]]*$").unwrap();
+impl FloatVariable {
+    pub fn new(name: String, value: f64) -> Self {
+        Self { name, value }
+    }
+}
 
-    if let Ok(lines) = read_lines(src_path) {
+impl Display for FloatVariable {
-        for line in lines.map_while(Result::ok) {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-            let Some(groups) = re.captures(&line) else {
+        write!(
-                continue;
+            f,
-            };
+            "const {name}: f64 = {value};",
+            name = self.name.replace('-', "_").to_uppercase(),
+            value = self.value
+        )
+    }
+}
 
-            let var = CssColorVariable {
+struct Task {
-                name: &groups[1],
+    src_path: PathBuf,
-                value: &groups[2],
+    dst_path: PathBuf,
-            };
+    module_name: String,
+}
 
-            let rust_export = var.to_rust();
+impl Task {
-            if let Err(err) = dst_file.write_fmt(format_args!("    pub {}\n", rust_export)) {
+    pub fn new(src_path: PathBuf, dst_path: PathBuf, module_name: String) -> Self {
+        Self {
+            src_path,
+            dst_path,
+            module_name,
+        }
+    }
+}
+
+// fn export_variables(src_path: &PathBuf, dst_path: &PathBuf) {
+fn export_variables(tasks: Vec<Task>) {
+    let color_re = Regex::new(r"^\$([^:]+):[[:space:]]*#([^$]+);[[:space:]]*$").unwrap();
+    let variable_re = Regex::new(r"^\$([^:]+):[[:space:]]*([^;]+)[[:space:]]*;").unwrap();
+
+    for task in tasks {
+        let mut dst_file = File::create(task.dst_path).unwrap();
+        if let Err(err) = dst_file.write_fmt(format_args!(
+            "#[allow(dead_code)]\nmod {} {{\n",
+            task.module_name
+        )) {
+            println!("{}", err);
+            return;
+        };
+
+        let mut variables = Vec::<Box<dyn Display>>::new();
+        if let Ok(lines) = read_lines(task.src_path) {
+            for line in lines.map_while(Result::ok) {
+                if let Some(groups) = color_re.captures(&line) {
+                    let var = ColorVariable::new(groups[1].to_string(), groups[2].to_string());
+                    variables.push(Box::new(var));
+                } else if let Some(groups) = variable_re.captures(&line) {
+                    if let Ok(value) = groups[2].parse::<f64>() {
+                        variables.push(Box::new(FloatVariable::new(groups[1].to_string(), value)));
+                    }
+                }
+            }
+        }
+
+        for variable in variables {
+            if let Err(err) = dst_file.write_fmt(format_args!("    pub {}\n", variable)) {
                 println!("{}", err);
                 break;
             }
         }
-    }
 
-    if let Err(err) = dst_file.write(b"}\n") {
+        if let Err(err) = dst_file.write(b"}\n") {
-        println!("{}", err);
+            println!("{}", err);
-    };
+        };
+    }
 }

src/ui/components/_panel.scss

@@ -1,6 +1,6 @@
 @import "../base.scss";
 
-$panel-aspect-ratio: 1/1.618;
+$aspect-ratio: 0.618; // 1/1.618;
 
 @mixin panel($padding-v: 2%, $padding-h: 2%) {
     padding: $padding-v $padding-h;

src/ui/components/icons.rs

@@ -7,7 +7,7 @@ use dioxus_free_icons::{Icon, IconShape};
 
 turf::style_sheet!("src/ui/components/icons.scss");
 
-include!(concat!(env!("OUT_DIR"), "/style_vars.rs"));
+include!(concat!(env!("OUT_DIR"), "/style_tokens.rs"));
 
 use style::{COLOR_PRIMARY_100, COLOR_TERNARY_100};
 

src/ui/components/login.rs

@@ -19,7 +19,7 @@ use super::{
     text_input::{PasswordInputState, PasswordTextInput, TextInput, TextInputState},
 };
 
-include!(concat!(env!("OUT_DIR"), "/style_vars.rs"));
+include!(concat!(env!("OUT_DIR"), "/style_tokens.rs"));
 
 use style::{
     COLOR_PRIMARY_100, COLOR_PRIMARY_110, COLOR_PRIMARY_120, COLOR_PRIMARY_140, COLOR_PRIMARY_150,

src/ui/components/modal.rs

@@ -9,7 +9,7 @@ use crate::infrastructure::services::random_svg_generators::{
     generate_random_svg_avatar, AvatarConfig, AvatarFeeling,
 };
 
-include!(concat!(env!("OUT_DIR"), "/style_vars.rs"));
+include!(concat!(env!("OUT_DIR"), "/style_tokens.rs"));
 
 use style::{COLOR_CRITICAL_100, COLOR_SUCCESS_100, COLOR_WARNING_100};
 

src/ui/layouts/conversations.rs

@@ -3,15 +3,18 @@ use std::rc::Rc;
 use dioxus::prelude::*;
 use futures::join;
 
+use crate::ui::components::{
+    chat_panel::ChatPanel, conversations::Conversations as ConversationsComponent,
+    wallpaper::Wallpaper,
+};
+
 turf::style_sheet!("src/ui/layouts/conversations.scss");
 
-use crate::ui::components::chat_panel::ChatPanel;
+include!(concat!(env!("OUT_DIR"), "/style_component_panel.rs"));
-use crate::ui::components::conversations::Conversations as ConversationsComponent;
+include!(concat!(env!("OUT_DIR"), "/style_layout_conversations.rs"));
-use crate::ui::components::wallpaper::Wallpaper;
 
-// TODO: Get from SCSS
+use conversations::INNER_PANEL_HEIGHT_RATIO;
-const WIDGET_HEIGHT_RATIO: f64 = 0.95;
+use panel::ASPECT_RATIO;
-const ASPECT_RATIO: f64 = 1.0 / 1.618;
 
 async fn on_carousel_scroll(
     parent_div: &Rc<MountedData>,
@@ -229,14 +232,13 @@ pub fn Conversations() -> Element {
                 if let Ok(size) = data.get_border_box_size() {
                     if let Some(size) = size.first() {
                         // Use LayoutBig if the layout can contain 2 panels side by side
-                        let component_width = size.height * WIDGET_HEIGHT_RATIO * ASPECT_RATIO;
+                        let component_width = size.height * INNER_PANEL_HEIGHT_RATIO * ASPECT_RATIO;
                         let breakpoint_width = component_width * 2_f64;
                         use_big_layout = size.width > breakpoint_width;
                     }
                 }
 
                 layout.set(rsx! { if use_big_layout { LayoutBig {} } else { LayoutSmall {} }});
-
             },
 
             {layout}

src/ui/layouts/conversations.scss

@@ -17,11 +17,13 @@
     scroll-snap-align: start;
 }
 
+$inner-panel-height-ratio: 0.95;
+
 .conversations-view {
     $height: 100vh;
     $width: 100vw;
-    $conversations-panel-height: calc($height * 0.95);
+    $conversations-panel-height: calc($height * $inner-panel-height-ratio);
-    $conversations-panel-width: calc($conversations-panel-height * $panel-aspect-ratio);
+    $conversations-panel-width: calc($conversations-panel-height * $aspect-ratio);
     $gap: 1%;
     $content-height: 95%;
     $ratio: 2;
@@ -63,11 +65,11 @@
                 height: 100%;
 
                 // TODO: Is aspect-ratio the best criteria to defined that inner shall take all the available space ?
-                @media (max-aspect-ratio: $panel-aspect-ratio) {
+                @media (max-aspect-ratio: $aspect-ratio) {
                     width: 100%;
                 }
-                @media (min-aspect-ratio: $panel-aspect-ratio) {
+                @media (min-aspect-ratio: $aspect-ratio) {
-                    aspect-ratio: $panel-aspect-ratio;
+                    aspect-ratio: $aspect-ratio;
                 }
             }
         }
@@ -105,7 +107,7 @@
 
         &__conversations-panel {
             height: $content-height;
-            aspect-ratio: $panel-aspect-ratio;
+            aspect-ratio: $aspect-ratio;
         }
 
         &__conversation-panels {

src/ui/layouts/login.scss

@@ -18,14 +18,14 @@
     align-items: safe center;
 
     &__login-panel {
-        @media (max-aspect-ratio: $panel-aspect-ratio) {
+        @media (max-aspect-ratio: $aspect-ratio) {
             width: 95%;
         }
-        @media (min-aspect-ratio: $panel-aspect-ratio) {
+        @media (min-aspect-ratio: $aspect-ratio) {
             height: 100%;
         }
 
-        aspect-ratio: $panel-aspect-ratio;
+        aspect-ratio: $aspect-ratio;
         max-height: $panel-max-height;
 
         flex-shrink: 0;
@@ -36,6 +36,6 @@
         justify-content: center;
 
         // Variables inherited by children
-        --aspect-ratio: #{$panel-aspect-ratio};
+        --aspect-ratio: #{$aspect-ratio};
     }
 }