Refactor 'ui tests' conception to previews

Signed-off-by: kernelkind <kernelkind@gmail.com>
Signed-off-by: William Casarin <jb55@jb55.com>

src/ui_preview/account_login_preview.rs

@@ -0,0 +1,39 @@
+use crate::egui_preview_setup::{EguiPreviewCase, EguiPreviewSetup};
+use notedeck::account_login_view::{DesktopAccountLoginView, MobileAccountLoginView};
+use notedeck::login_manager::LoginManager;
+
+pub struct DesktopAccountLoginPreview {
+    manager: LoginManager,
+}
+
+impl EguiPreviewCase for DesktopAccountLoginPreview {
+    fn new(_supr: EguiPreviewSetup) -> Self {
+        DesktopAccountLoginPreview {
+            manager: LoginManager::new(),
+        }
+    }
+}
+
+impl eframe::App for DesktopAccountLoginPreview {
+    fn update(&mut self, ctx: &egui::Context, _: &mut eframe::Frame) {
+        DesktopAccountLoginView::new(ctx, &mut self.manager).panel()
+    }
+}
+
+pub struct MobileAccountLoginPreview {
+    manager: LoginManager,
+}
+
+impl EguiPreviewCase for MobileAccountLoginPreview {
+    fn new(_supr: EguiPreviewSetup) -> Self {
+        MobileAccountLoginPreview {
+            manager: LoginManager::new(),
+        }
+    }
+}
+
+impl eframe::App for MobileAccountLoginPreview {
+    fn update(&mut self, ctx: &egui::Context, _: &mut eframe::Frame) {
+        MobileAccountLoginView::new(ctx, &mut self.manager).panel()
+    }
+}

src/ui_preview/egui_preview_setup.rs

@@ -0,0 +1,15 @@
+use notedeck::app_creation::setup_cc;
+
+pub struct EguiPreviewSetup {}
+
+pub trait EguiPreviewCase: eframe::App {
+    fn new(supr: EguiPreviewSetup) -> Self;
+}
+
+impl EguiPreviewSetup {
+    pub fn new(cc: &eframe::CreationContext<'_>) -> Self {
+        setup_cc(cc);
+
+        EguiPreviewSetup {}
+    }
+}

src/ui_preview/main.rs

@@ -0,0 +1,46 @@
+mod account_login_preview;
+mod egui_preview_setup;
+use account_login_preview::{DesktopAccountLoginPreview, MobileAccountLoginPreview};
+use egui_preview_setup::{EguiPreviewCase, EguiPreviewSetup};
+use notedeck::app_creation::{generate_native_options, generate_mobile_emulator_native_options};
+use std::env;
+
+fn run_test_app<F, T, O>(create_supr: F, create_child: O, is_mobile: bool)
+where
+    F: 'static + FnOnce(&eframe::CreationContext<'_>) -> EguiPreviewSetup,
+    T: 'static + EguiPreviewCase,
+    O: 'static + FnOnce(EguiPreviewSetup) -> T,
+{
+    tracing_subscriber::fmt::init();
+
+    let native_options = if is_mobile {
+        generate_mobile_emulator_native_options()
+    } else {
+        generate_native_options()
+    };
+
+    let _ = eframe::run_native(
+        "UI Preview Runner",
+        native_options,
+        Box::new(|cc| Box::new(create_child(create_supr(cc)))),
+    );
+}
+
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+
+    if args.len() > 1 {
+        match args[1].as_str() {
+            "DesktopAccountLoginPreview" => {
+                run_test_app(EguiPreviewSetup::new, DesktopAccountLoginPreview::new, false)
+            }
+            "MobileAccountLoginPreview" => {
+                run_test_app(EguiPreviewSetup::new, MobileAccountLoginPreview::new, true)
+            }
+            _ => println!("Component not found."),
+        }
+    } else {
+        println!("Please specify a component to test.");
+    }
+}