feat: accept argument for path to open

src/content.zig

@@ -3,10 +3,10 @@ pub fn Content(App: type) type {
         allocator: Allocator,
         document: *const App.Model.Document,
 
-        pub fn init(allocator: Allocator) @This() {
+        pub fn init(allocator: Allocator, document: *const App.Model.Document) @This() {
             return .{
                 .allocator = allocator,
-                .document = undefined,
+                .document = document,
             };
         }
 
@@ -22,6 +22,9 @@ pub fn Content(App: type) type {
         }
 
         fn minSize(ctx: *anyopaque, size: zterm.Point) zterm.Point {
+            // TODO what about that initial size? seems wrong!
+            if (size.x == 0 or size.y == 0) return size;
+
             const this: *const @This() = @ptrCast(@alignCast(ctx));
             const text = this.document.content;
             var index: usize = 0;

src/main.zig

@@ -1,3 +1,4 @@
+// usage: tui_website <path>
 pub fn main() !void {
     errdefer |err| log.err("Application Error: {any}", .{err});
 
@@ -6,6 +7,12 @@ pub fn main() !void {
 
     const allocator = gpa.allocator();
 
+    var arg_it = try std.process.argsWithAllocator(allocator);
+    errdefer arg_it.deinit();
+
+    // skip own executable name
+    _ = arg_it.skip();
+
     var app: App = .init(.{
         .page = .about,
         .document = .init(try std.fs.cwd().readFileAlloc("./doc/about.md", allocator, .unlimited)),
@@ -66,7 +73,7 @@ pub fn main() !void {
     }
     // main actual tui_website page content
     {
-        var content: Content = .init(allocator);
+        var content: Content = .init(allocator, &app.model.document);
         content_container = try .init(allocator, .{}, content.element());
 
         var scrollable: App.Scrollable = .init(content_container, .enabled(.green, false));
@@ -92,33 +99,54 @@ pub fn main() !void {
     try app.start();
     defer app.stop() catch |err| log.err("Failed to stop application: {any}", .{err});
 
+    if (arg_it.next()) |path| {
+        // TODO check path is only pointing to allowed files?
+        // - only *markdown* files (file extension `.md`)
+        // - only in a specific path / directory?
+        //   -> enforce a specific structure?
+        // -> in case an invalid path is provided the 404 error page shall be shown
+        // -> reporte an corresponding error! (such that I can see that in the log)
+        app.postEvent(.{ .blog = try allocator.dupe(u8, path) });
+    }
+    arg_it.deinit();
+
     // event loop
-    while (true) {
+    loop: while (true) {
+        // batch events since last iteration
+        const len = blk: {
+            app.queue.poll();
+            app.queue.lock();
+            defer app.queue.unlock();
+            break :blk app.queue.len();
+        };
+
         // handle events
-        const event = app.nextEvent();
+        for (0..len) |_| {
+            const event = app.queue.pop();
 
-        // pre event handling
-        switch (event) {
-            .key => |key| {
-                if (key.eql(.{ .cp = 'c', .mod = .{ .ctrl = true } })) app.quit();
-                // test if the event handling is working correctly
-                if (key.eql(.{ .cp = zterm.input.Space })) app.postEvent(.{ .blog = allocator.dupe(u8, "./doc/test.md") catch unreachable });
-            },
-            .err => |err| log.err("Received {s} with message: {s}", .{ @errorName(err.err), err.msg }),
-            else => {},
-        }
+            // pre event handling
+            switch (event) {
+                .key => |key| {
+                    if (key.eql(.{ .cp = 'c', .mod = .{ .ctrl = true } })) app.quit();
+                    // test if the event handling is working correctly
+                    if (key.eql(.{ .cp = zterm.input.Space })) app.postEvent(.{ .blog = allocator.dupe(u8, "./doc/test.md") catch unreachable });
+                },
+                .err => |err| log.err("Received {s} with message: {s}", .{ @errorName(err.err), err.msg }),
+                else => {},
+            }
 
-        container.handle(&app.model, event) catch |err| app.postEvent(.{
-            .err = .{
-                .err = err,
-                .msg = "Container Event handling failed",
-            },
-        });
+            container.handle(&app.model, event) catch |err| app.postEvent(.{
+                .err = .{
+                    .err = err,
+                    .msg = "Container Event handling failed",
+                },
+            });
 
-        // post event handling
-        switch (event) {
-            .quit => break,
-            else => {},
+            // post event handling
+            switch (event) {
+                .quit => break :loop,
+                else => {},
+            }
         }
 
         container.resize(try renderer.resize());