feat: add mouse resizing of panel views

src/tui/status/diagstate.zig

@@ -19,7 +19,7 @@ rendered: [:0]const u8 = "",
 
 const Self = @This();
 
-pub fn create(a: Allocator, parent: Plane) !Widget {
+pub fn create(a: Allocator, parent: Plane, event_handler: ?Widget.EventHandler) !Widget {
     return Button.create_widget(Self, a, parent, .{
         .ctx = .{},
         .label = "",
@@ -27,6 +27,7 @@ pub fn create(a: Allocator, parent: Plane) !Widget {
         .on_layout = layout,
         .on_render = render,
         .on_receive = receive,
+        .on_event = event_handler,
     });
 }
 

src/tui/status/filestate.zig

@@ -34,7 +34,7 @@ file: bool = false,
 const project_icon = "";
 const Self = @This();
 
-pub fn create(a: Allocator, parent: Plane) !Widget {
+pub fn create(a: Allocator, parent: Plane, event_handler: ?Widget.EventHandler) !Widget {
     const btn = try Button.create(Self, a, parent, .{
         .ctx = .{
             .a = a,
@@ -52,6 +52,7 @@ pub fn create(a: Allocator, parent: Plane) !Widget {
         .on_layout = layout,
         .on_render = render,
         .on_receive = receive,
+        .on_event = event_handler,
     });
     return Widget.to(btn);
 }

src/tui/status/keystate.zig

@@ -15,7 +15,6 @@ const EventHandler = @import("../EventHandler.zig");
 
 const history = 8;
 
-parent: Plane,
 plane: Plane,
 frame: u64 = 0,
 idle_frame: u64 = 0,
@@ -33,23 +32,15 @@ const idle_msg = "🐶";
 pub const width = idle_msg.len + 20;
 
 pub fn create(a: Allocator, parent: Plane) !Widget {
-    const self: *Self = try a.create(Self);
-    self.* = try init(parent);
-    try tui.current().input_listeners.add(EventHandler.bind(self, listen));
-    return self.widget();
-}
-
-fn init(parent: Plane) !Self {
-    var n = try Plane.init(&(Widget.Box{}).opts(@typeName(Self)), parent);
-    errdefer n.deinit();
     var frame_rate = tp.env.get().num("frame-rate");
     if (frame_rate == 0) frame_rate = 60;
-
-    return .{
-        .parent = parent,
-        .plane = n,
+    const self: *Self = try a.create(Self);
+    self.* = .{
+        .plane = try Plane.init(&(Widget.Box{}).opts(@typeName(Self)), parent),
         .wipe_after_frames = @divTrunc(frame_rate, 2),
     };
+    try tui.current().input_listeners.add(EventHandler.bind(self, listen));
+    return self.widget();
 }
 
 pub fn widget(self: *Self) Widget {

src/tui/status/linenumstate.zig

@@ -18,7 +18,7 @@ rendered: [:0]const u8 = "",
 
 const Self = @This();
 
-pub fn create(a: Allocator, parent: Plane) !Widget {
+pub fn create(a: Allocator, parent: Plane, event_handler: ?Widget.EventHandler) !Widget {
     return Button.create_widget(Self, a, parent, .{
         .ctx = .{},
         .label = "",
@@ -26,6 +26,7 @@ pub fn create(a: Allocator, parent: Plane) !Widget {
         .on_layout = layout,
         .on_render = render,
         .on_receive = receive,
+        .on_event = event_handler,
     });
 }
 

src/tui/status/minilog.zig

@@ -10,12 +10,12 @@ const tui = @import("../tui.zig");
 const mainview = @import("../mainview.zig");
 const logview = @import("../logview.zig");
 
-parent: Plane,
 plane: Plane,
 msg: std.ArrayList(u8),
 msg_counter: usize = 0,
 clear_timer: ?tp.Cancellable = null,
 level: Level = .info,
+on_event: ?Widget.EventHandler,
 
 const message_display_time_seconds = 2;
 const error_display_time_seconds = 4;
@@ -26,12 +26,12 @@ const Level = enum {
     err,
 };
 
-pub fn create(a: std.mem.Allocator, parent: Plane) !Widget {
+pub fn create(a: std.mem.Allocator, parent: Plane, event_handler: ?Widget.EventHandler) !Widget {
     const self: *Self = try a.create(Self);
     self.* = .{
-        .parent = parent,
         .plane = try Plane.init(&(Widget.Box{}).opts(@typeName(Self)), parent),
         .msg = std.ArrayList(u8).init(a),
+        .on_event = event_handler,
     };
     logview.init(a);
     try tui.current().message_filters.add(MessageFilter.bind(self, receive_log));
@@ -52,6 +52,15 @@ pub fn deinit(self: *Self, a: std.mem.Allocator) void {
     a.destroy(self);
 }
 
+pub fn receive(self: *Self, from: tp.pid_ref, m: tp.message) error{Exit}!bool {
+    var btn: u32 = 0;
+    if (try m.match(.{ "D", tp.any, tp.extract(&btn), tp.more })) {
+        if (self.on_event) |h| h.send(from, m) catch {};
+        return true;
+    }
+    return false;
+}
+
 pub fn layout(self: *Self) Widget.Layout {
     return .{ .static = if (self.msg.items.len > 0) self.msg.items.len + 2 else 1 };
 }
@@ -92,7 +101,7 @@ fn process_log(self: *Self, m: tp.message) !void {
         const err_stop = "error.Stop";
         if (std.mem.eql(u8, msg, err_stop))
             return;
-        if (msg.len >= err_stop.len + 1 and std.mem.eql(u8, msg[0..err_stop.len + 1], err_stop ++ "\n"))
+        if (msg.len >= err_stop.len + 1 and std.mem.eql(u8, msg[0 .. err_stop.len + 1], err_stop ++ "\n"))
             return;
         try self.set(msg, .err);
     } else if (try m.match(.{ "log", tp.extract(&src), tp.more })) {

src/tui/status/modestate.zig

@@ -14,13 +14,14 @@ const command = @import("../command.zig");
 const ed = @import("../editor.zig");
 const tui = @import("../tui.zig");
 
-pub fn create(a: Allocator, parent: Plane) !Widget {
+pub fn create(a: Allocator, parent: Plane, event_handler: ?Widget.EventHandler) !Widget {
     return Button.create_widget(void, a, parent, .{
         .ctx = {},
         .label = tui.get_mode(),
         .on_click = on_click,
         .on_layout = layout,
         .on_render = render,
+        .on_event = event_handler,
     });
 }
 

src/tui/status/modstate.zig

@@ -25,19 +25,13 @@ pub const width = 5;
 
 pub fn create(a: Allocator, parent: Plane) !Widget {
     const self: *Self = try a.create(Self);
-    self.* = try init(parent);
+    self.* = .{
+        .plane = try Plane.init(&(Widget.Box{}).opts(@typeName(Self)), parent),
+    };
     try tui.current().input_listeners.add(EventHandler.bind(self, listen));
     return self.widget();
 }
 
-fn init(parent: Plane) !Self {
-    var n = try Plane.init(&(Widget.Box{}).opts(@typeName(Self)), parent);
-    errdefer n.deinit();
-    return .{
-        .plane = n,
-    };
-}
-
 pub fn widget(self: *Self) Widget {
     return Widget.to(self);
 }

src/tui/status/selectionstate.zig

@@ -15,22 +15,17 @@ cursels: usize = 0,
 selection: ?ed.Selection = null,
 buf: [256]u8 = undefined,
 rendered: [:0]const u8 = "",
+on_event: ?Widget.EventHandler,
 
 const Self = @This();
 
-pub fn create(a: Allocator, parent: Plane) !Widget {
+pub fn create(a: Allocator, parent: Plane, event_handler: ?Widget.EventHandler) !Widget {
     const self: *Self = try a.create(Self);
-    self.* = try init(parent);
-    return Widget.to(self);
-}
-
-fn init(parent: Plane) !Self {
-    var n = try Plane.init(&(Widget.Box{}).opts(@typeName(Self)), parent);
-    errdefer n.deinit();
-
-    return .{
-        .plane = n,
+    self.* = .{
+        .plane = try Plane.init(&(Widget.Box{}).opts(@typeName(Self)), parent),
+        .on_event = event_handler,
     };
+    return Widget.to(self);
 }
 
 pub fn deinit(self: *Self, a: Allocator) void {
@@ -81,7 +76,12 @@ fn format(self: *Self) void {
     self.buf[self.rendered.len] = 0;
 }
 
-pub fn receive(self: *Self, _: tp.pid_ref, m: tp.message) error{Exit}!bool {
+pub fn receive(self: *Self, from: tp.pid_ref, m: tp.message) error{Exit}!bool {
+    var btn: u32 = 0;
+    if (try m.match(.{ "D", tp.any, tp.extract(&btn), tp.more })) {
+        if (self.on_event) |h| h.send(from, m) catch {};
+        return true;
+    }
     if (try m.match(.{ "E", "match", tp.extract(&self.matches) }))
         self.format();
     if (try m.match(.{ "E", "cursels", tp.extract(&self.cursels) }))

src/tui/status/statusbar.zig

@@ -6,15 +6,28 @@ const tui = @import("../tui.zig");
 
 const Self = @This();
 
-pub fn create(a: std.mem.Allocator, parent: Widget) !Widget {
+pub fn create(a: std.mem.Allocator, parent: Widget, event_handler: ?Widget.EventHandler) !Widget {
     var w = try WidgetList.createH(a, parent, "statusbar", .{ .static = 1 });
-    if (tui.current().config.modestate_show) try w.add(try @import("modestate.zig").create(a, w.plane));
-    try w.add(try @import("filestate.zig").create(a, w.plane));
-    try w.add(try @import("minilog.zig").create(a, w.plane));
-    if (tui.current().config.selectionstate_show) try w.add(try @import("selectionstate.zig").create(a, w.plane));
-    try w.add(try @import("diagstate.zig").create(a, w.plane));
-    try w.add(try @import("linenumstate.zig").create(a, w.plane));
+    w.after_render = render_grip;
+    w.ctx = w;
+    if (tui.current().config.modestate_show) try w.add(try @import("modestate.zig").create(a, w.plane, event_handler));
+    try w.add(try @import("filestate.zig").create(a, w.plane, event_handler));
+    try w.add(try @import("minilog.zig").create(a, w.plane, event_handler));
+    if (tui.current().config.selectionstate_show) try w.add(try @import("selectionstate.zig").create(a, w.plane, event_handler));
+    try w.add(try @import("diagstate.zig").create(a, w.plane, event_handler));
+    try w.add(try @import("linenumstate.zig").create(a, w.plane, event_handler));
     if (tui.current().config.modstate_show) try w.add(try @import("modstate.zig").create(a, w.plane));
     if (tui.current().config.keystate_show) try w.add(try @import("keystate.zig").create(a, w.plane));
     return w.widget();
 }
+
+fn render_grip(ctx: ?*anyopaque, theme: *const Widget.Theme) void {
+    const w: *WidgetList = @ptrCast(@alignCast(ctx.?));
+    if (w.hover()) {
+        w.plane.set_style(theme.statusbar_hover);
+        const width = w.plane.dim_x();
+        const grip_pos = width / 2;
+        w.plane.cursor_move_yx(0, @intCast(grip_pos)) catch {};
+        _ = w.plane.putstr("  ") catch {};
+    }
+}