Ely Office: six offline-first desktop apps in Rust and GPUI

ElyDoc, ElyTable, ElyShow (LibreOfficeKit), ElyPDF (MuPDF), ElyTree (Git),
ElyMark (Milkdown and CodeMirror in CEF). ElyMail and ElyAgent follow.

tests/scripts/ax-frames.swift

@@ -0,0 +1,47 @@
+// Prints each window element's frame and parent as JSON.
+import ApplicationServices
+import Foundation
+
+func attribute(_ element: AXUIElement, _ name: String) -> AnyObject? {
+    var value: AnyObject?
+    guard AXUIElementCopyAttributeValue(element, name as CFString, &value) == .success else { return nil }
+    return value
+}
+
+// The element's frame in screen points.
+func frame(_ element: AXUIElement) -> CGRect? {
+    var origin = CGPoint.zero, size = CGSize.zero
+    guard let position = attribute(element, kAXPositionAttribute),
+          let extent = attribute(element, kAXSizeAttribute),
+          AXValueGetValue(position as! AXValue, .cgPoint, &origin),
+          AXValueGetValue(extent as! AXValue, .cgSize, &size) else { return nil }
+    return CGRect(origin: origin, size: size)
+}
+
+var next = 0
+func walk(_ element: AXUIElement, _ parent: Int, _ depth: Int) {
+    if depth > 60 { return }
+    next += 1
+    let id = next
+    let role = attribute(element, kAXRoleAttribute) as? String ?? ""
+    let name = [kAXTitleAttribute, kAXDescriptionAttribute, kAXValueAttribute]
+        .compactMap { attribute(element, $0) as? String }.first { !$0.isEmpty } ?? ""
+    var row: [String: Any] = ["id": id, "parent": parent, "role": role, "name": name]
+    if let rect = frame(element) {
+        row["frame"] = [rect.minX, rect.minY, rect.width, rect.height]
+    }
+    let data = try! JSONSerialization.data(withJSONObject: row)
+    print(String(data: data, encoding: .utf8)!)
+    for child in attribute(element, kAXChildrenAttribute) as? [AXUIElement] ?? [] {
+        walk(child, id, depth + 1)
+    }
+}
+
+guard AXIsProcessTrusted() else {
+    print("untrusted")
+    exit(2)
+}
+let app = AXUIElementCreateApplication(pid_t(CommandLine.arguments[1])!)
+for window in attribute(app, kAXWindowsAttribute) as? [AXUIElement] ?? [] {
+    walk(window, 0, 0)
+}