╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ Header.zig ───────────────────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ╯
231 // only the selected tab shows its border 232 const selected_tab = if (box.getFocus().child_id == self.tabs_id) tabs_box.getFocus().child_id else null; 233 var tabs_width: usize = 0; 234 for (tabs_box.children.keys(), tabs_box.children.values()) |id, *child| { 235 const tb: ?*wgt.TextBox = switch (child.widget) { 236 .text_box => |*x| x, 237 .auth_tab => |*at| blk: { 238 // the label tracks login state per frame, so the width must too 239 child.min_size = .{ .width = at.minWidth(), .height = null }; 240 break :blk &at.text_box; 241 }, 242 else => null, 243 }; 244 if (tb) |t| ui.widget.markSelected(t, selected_tab == id); 245 tabs_width += if (child.min_size) |min_size| min_size.width orelse 0 else 0; 246 } 247 248 // the outer box's hidden border occupies two columns. keep the title 249 // and tabs together if they fit; otherwise tab strip on its own row. 250 const viewport_width = constraint.max_size.width orelse constraint.min_size.width; 251 const content_width = if (viewport_width) |width| width -| 2 else null; 252 const back_width: usize = if (back_visible) ui.widget.back_button_width else 0; 253 const wrap = if (content_width) |width| self.first_group_width + back_width + tabs_width > width else false; 254 box.options.direction = if (wrap) .vert else .horiz; 255 tabs_child.min_size = if (wrap) .{ .width = content_width, .height = null } else null; 256 (box.children.getPtr(self.gap_id) orelse unreachable).hidden = !wrap; 257 258 var scroll_constraint = constraint; 259 scroll_constraint.min_size.width = viewport_width; 260 try self.scroll.build(allocator, scroll_constraint, root_focus); 261 } 262 263 pub fn input(self: *View, allocator: std.mem.Allocator, key: Key, root_focus: *Focus) !void { 264 _ = allocator; 265 const current_tab = self.currentTabIndex() orelse return; 266 if (inp.moveTab(key, current_tab, self.tab_ids.count())) |new_tab| { 267 const tab_id = self.tab_ids.keys()[new_tab]; 268 root_focus.setFocus(tab_id); 269 const tabs_child = self.tabsChild(); 270 const tabs_rect = tabs_child.rect orelse return; 271 const tab = tabs_child.widget.box.children.get(tab_id) orelse return; 272 var rect = tab.rect orelse return; 273 rect.x += tabs_rect.x; 274 rect.y += tabs_rect.y; 275 self.scroll.scrollToRect(rect); 276 } 277 } 278 279 pub fn clearGrid(self: *View) void { 280 self.scroll.clearGrid(); 281 } 282 283 pub fn getGrid(self: View) ?Grid { 284 return self.scroll.getGrid(); 285 } 286 287 pub fn getFocus(self: *View) *Focus { 288 return self.scroll.getFocus(); 289 } 290 291 pub fn getSelectedIndex(self: View) ?usize { 292 return self.currentTabIndex(); 293 } 294 295 fn currentTabIndex(self: View) ?usize { 296 if (self.scroll.child.box.focus.child_id != self.tabs_id) return null; 297 const child_id = self.tabsChild().widget.box.focus.child_id orelse return null; 298 return self.tab_ids.getIndex(child_id); 299 } 300 301 fn tabsChild(self: *const View) *wgt.Box(ui.Widget).Child { 302 return self.scroll.child.box.children.getPtr(self.tabs_id) orelse unreachable; 303 } 304 }; 305