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▄ ▄▄▄▄▄ ▄ ▄▀ ▄▀▀▀▀▀▀ ▄ ▀▄ ▀▀▀▀▀▀▀▀ ▀▀ ▀▀▄ ▀▀▀▀▀▀▀▀ ▀▀▀ ▀▀▀▀ ▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀ ▀▄ ▀▀▀▀▀▀▀▀▀▄ ▀▀▀▀▀▀▀ ▀ ▀▀▀▀▀▀▀▀▀▀▄ ▄▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▄ ▄▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▄ ▀▀▀▀▀▀▀▀▀▀▀▀ ▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄ ▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▄ ▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▄▄▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▄ ▄▀▀▀▀▀▀▀▀ ▀▀▀▄ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▄▄▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀ ▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▄▀▀▀▀▄ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀ ▀▀▀▀ ▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄ ▀▀▀▀▀▀▀▀▀▀▀▄▄▀▀▀▄▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▄▀▀▀▀▀▄ ▀▀▀▀▀▀▄▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▄▄▀▀▀▀▀▀▀▀▀▀ ▄▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀

╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ main_wasm.zig ────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯

╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯

.. embed/ event/ test/ ui/ command.zig diff3.zig event.zig lib.zig main.zig ╭─────────────────────────────────╮ │main_wasm.zig │ ╰─────────────────────────────────╯ serve.zig serve_common.zig serve_http.zig serve_ssh.zig serve_ssh_protocol.zig test.zig testnet.zig try.zig ui.zig web.zig

104 105 // keep the focused widget visible within its own scrollable element. 106 // only fire on an actual focus change so we don't fight the user's 107 // manual scrolling on unrelated ticks. 108 if (gid != last_scrolled_focus_id) { 109 last_scrolled_focus_id = gid; 110 _scrollToFocus(@intCast(gid)); 111 } 112 } 113 } 114 } 115 116 fn onKeyDown(key_code: u32) !void { 117 const root_ptr = if (root) |*root_value| root_value else return error.NotStarted; 118 const key: Key = switch (key_code) { 119 13 => .enter, 120 33 => .page_up, 121 34 => .page_down, 122 35 => .end, 123 36 => .home, 124 37 => .arrow_left, 125 38 => .arrow_up, 126 39 => .arrow_right, 127 40 => .arrow_down, 128 else => return, 129 }; 130 131 if (key == .enter) { 132 if (root_ptr.getFocus().grandchild_id) |gid| { 133 // follow a cross-page link 134 if (ui.crossPageLink(root_ptr.getFocus(), gid, session.data)) |route| { 135 const url = try route.toUrl(&page_arena); 136 _navigate(url.ptr, @intCast(url.len)); 137 return; 138 } 139 } 140 } 141 142 try root_ptr.input(allocator, key, root_ptr.getFocus()); 143 } 144 145 fn onMouseClick(focus_id: usize) !void { 146 const root_ptr = if (root) |*root_value| root_value else return error.NotStarted; 147 // follow a cross-page link 148 if (ui.crossPageLink(root_ptr.getFocus(), focus_id, session.data)) |route| { 149 const url = try route.toUrl(&page_arena); 150 _navigate(url.ptr, @intCast(url.len)); 151 return; 152 } 153 root_ptr.getFocus().setFocus(focus_id); 154 } 155 156 fn setFocus(focus_id: usize) !void { 157 const root_ptr = if (root) |*root_value| root_value else return error.NotStarted; 158 root_ptr.getFocus().setFocus(focus_id); 159 } 160 161 fn consoleLog(arg: []const u8) void { 162 _consoleLog(arg.ptr, @intCast(arg.len)); 163 } 164 165 extern fn _consoleLog(arg: [*]const u8, len: u32) void; 166 extern fn _setHtml(arg: [*]const u8, len: u32) void; 167 extern fn _setOverlay(arg: [*]const u8, len: u32) void; 168 extern fn _replaceState(arg: [*]const u8, len: u32) void; 169 extern fn _focusInput(focus_id: u32) void; 170 extern fn _navigate(arg: [*]const u8, len: u32) void; 171 extern fn _scrollToFocus(focus_id: u32) void; 172 173 /// js calls this first to get a wasm pointer it can write the page json into. 174 export fn _alloc(len: u32) ?[*]u8 { 175 const slice = allocator.alloc(u8, len) catch return null; 176 return slice.ptr; 177 } 178 179 export fn _init(json_ptr: [*]u8, json_len: u32, min_height: u32, max_width: u32) void { 180 const json = json_ptr[0..json_len]; 181 defer allocator.free(json); 182 init(json, min_height, max_width) catch |err| { 183 var buf: [256]u8 = undefined; 184 const str = std.fmt.bufPrint(&buf, "init: {}", .{err}) catch unreachable; 185 consoleLog(str); 186 }; 187 } 188 189 export fn _tick(min_height: u32, max_width: u32) bool { 190 tick(min_height, max_width) catch |err| { 191 var buf: [256]u8 = undefined; 192 const str = std.fmt.bufPrint(&buf, "tick: {}", .{err}) catch unreachable; 193 consoleLog(str); 194 return false; 195 }; 196 return true; 197 } 198 199 export fn _onKeyDown(key_code: u32) void { 200 onKeyDown(key_code) catch |err| { 201 var buf: [256]u8 = undefined; 202 const str = std.fmt.bufPrint(&buf, "onKeyDown: {}", .{err}) catch unreachable; 203 consoleLog(str); 204 }; 205 } 206 207 export fn _onMouseClick(focus_id: u32) void { 208 onMouseClick(focus_id) catch |err| { 209 var buf: [256]u8 = undefined; 210 const str = std.fmt.bufPrint(&buf, "onMouseClick: {}", .{err}) catch unreachable; 211 consoleLog(str); 212 }; 213 } 214 215 export fn _setFocus(focus_id: u32) void { 216 setFocus(focus_id) catch |err| { 217 var buf: [256]u8 = undefined; 218 const str = std.fmt.bufPrint(&buf, "setFocus: {}", .{err}) catch unreachable; 219 consoleLog(str); 220 }; 221 } 222 223 // js calls this when the value of an overlay <input> changes; we replace 224 // the matching TextInput's content with the supplied utf-8 bytes. 225 export fn _setTextInputValue(focus_id: u32, value_ptr: [*]const u8, value_len: u32) void { 226 setTextInputValue(focus_id, value_ptr[0..value_len]) catch |err| { 227 var buf: [256]u8 = undefined; 228 const str = std.fmt.bufPrint(&buf, "setTextInputValue: {}", .{err}) catch unreachable; 229 consoleLog(str); 230 }; 231 } 232 233 fn setTextInputValue(focus_id: u32, bytes: []const u8) !void { 234 const root_ptr = if (root) |*r| r else return error.NotStarted; 235 const root_focus = root_ptr.getFocus(); 236 const child = root_focus.children.get(focus_id) orelse return error.UnknownFocusId; 237 switch (child.focus.kind) { 238 .text_input, .text_input_password, .text_area => {}, 239 else => return error.NotATextInput, 240 } 241 const ti = session.text_inputs.get(focus_id) orelse return error.UnknownFocusId; 242 try ti.setContent(allocator, bytes); 243 // mirror the TTY behavior in Login.View.input: editing an input clears 244 // the stale failure flag so the "(invalid)" label doesn't linger after 245 // the user has typed a correction 246 session.data.login_failure = null; 247 } 248