╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ main_wasm.zig ────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯
144 const root_ptr = if (root) |*root_value| root_value else return error.NotStarted; 145 // follow a cross-page link 146 if (ui.crossPageLink(root_ptr.getFocus(), focus_id, session.data.current_page)) |route| { 147 const url = try route.urlAlloc(&page_arena); 148 navigate(url); 149 return; 150 } 151 try root_ptr.getFocus().setFocus(focus_id); 152 } 153 154 fn consoleLog(arg: []const u8) void { 155 _consoleLog(arg.ptr, @intCast(arg.len)); 156 } 157 158 fn setHtml(arg: []const u8) void { 159 _setHtml(arg.ptr, @intCast(arg.len)); 160 } 161 162 fn setOverlay(arg: []const u8) void { 163 _setOverlay(arg.ptr, @intCast(arg.len)); 164 } 165 166 fn navigate(arg: []const u8) void { 167 _navigate(arg.ptr, @intCast(arg.len)); 168 } 169 170 extern fn _consoleLog(arg: [*]const u8, len: u32) void; 171 extern fn _setHtml(arg: [*]const u8, len: u32) void; 172 extern fn _setOverlay(arg: [*]const u8, len: u32) void; 173 extern fn _pushState(arg: [*]const u8, len: u32) void; 174 extern fn _focusInput(focus_id: u32) void; 175 extern fn _navigate(arg: [*]const u8, len: u32) void; 176 extern fn _scrollToRect(x: u32, y: u32, width: u32, height: u32) void; 177 178 /// js calls this first to get a wasm pointer it can write the page json into. 179 export fn _alloc(len: u32) ?[*]u8 { 180 const slice = allocator.alloc(u8, len) catch return null; 181 return slice.ptr; 182 } 183 184 export fn _init(json_ptr: [*]u8, json_len: u32, min_height: u32, max_width: u32) void { 185 const json = json_ptr[0..json_len]; 186 defer allocator.free(json); 187 init(json, min_height, max_width) catch |err| { 188 var buf: [256]u8 = undefined; 189 const str = std.fmt.bufPrint(&buf, "init: {}", .{err}) catch unreachable; 190 consoleLog(str); 191 }; 192 } 193 194 export fn _tick(min_height: u32, max_width: u32) bool { 195 tick(min_height, max_width) catch |err| { 196 var buf: [256]u8 = undefined; 197 const str = std.fmt.bufPrint(&buf, "tick: {}", .{err}) catch unreachable; 198 consoleLog(str); 199 return false; 200 }; 201 return true; 202 } 203 204 export fn _onKeyDown(key_code: u32) void { 205 onKeyDown(key_code) catch |err| { 206 var buf: [256]u8 = undefined; 207 const str = std.fmt.bufPrint(&buf, "onKeyDown: {}", .{err}) catch unreachable; 208 consoleLog(str); 209 }; 210 } 211 212 export fn _onMouseClick(focus_id: u32) void { 213 onMouseClick(focus_id) catch |err| { 214 var buf: [256]u8 = undefined; 215 const str = std.fmt.bufPrint(&buf, "onMouseClick: {}", .{err}) catch unreachable; 216 consoleLog(str); 217 }; 218 } 219 220 // js calls this when the value of an overlay <input> changes; we replace 221 // the matching TextInput's content with the supplied utf-8 bytes. 222 export fn _setTextInputValue(focus_id: u32, value_ptr: [*]const u8, value_len: u32) void { 223 setTextInputValue(focus_id, value_ptr[0..value_len]) catch |err| { 224 var buf: [256]u8 = undefined; 225 const str = std.fmt.bufPrint(&buf, "setTextInputValue: {}", .{err}) catch unreachable; 226 consoleLog(str); 227 }; 228 } 229 230 fn setTextInputValue(focus_id: u32, bytes: []const u8) !void { 231 const root_ptr = if (root) |*r| r else return error.NotStarted; 232 const root_focus = root_ptr.getFocus(); 233 const child = root_focus.children.get(focus_id) orelse return error.UnknownFocusId; 234 switch (child.focus.kind) { 235 .text_input, .text_input_password => {}, 236 else => return error.NotATextInput, 237 } 238 const ti: *wgt.TextInput(ui.Widget) = @fieldParentPtr("focus", child.focus); 239 try ti.setContent(allocator, bytes); 240 // mirror the TTY behavior in Login.View.input: editing an input clears 241 // the stale failure flag so the "(invalid)" label doesn't linger after 242 // the user has typed a correction 243 session.data.login_failure = null; 244 } 245