Fix review points

- Fix headers hierarchy
- Improve accessibility:
 	- set mouse pointer
	- make rows focusable
	- open on key press
	- add tooltip with "title"
	- add role and aria attributes
- Rename `ParsedLog` to `ParsedLogLine`
- Add docs to `ReversedFileReader`'s implementation of `Iterator`'s methods
- Add docs to `ParsedLogIterator`'s implementation of `Iterator`'s methods
- Remove unnecessary comment
- Add more test for parsing log lines and fix some edge cases
- Fix function name in snake-case to camelCase
- Remove `DIRECTORY_SEPARATOR`

view/js/module/admin/logs/view.js

@@ -1,7 +1,33 @@
-function log_show_details(id) {
+(function(){
+	function log_show_details(elm) {
+		const id = elm.id;
+		var hidden = true;
+		document
+			.querySelectorAll('[data-id="' + id + '"]')
+			.forEach(edetails => {
+				hidden = edetails.classList.toggle('hidden');
+			});
+		document
+			.querySelectorAll('[aria-expanded="true"]')
+			.forEach(eexpanded => {
+				eexpanded.setAttribute('aria-expanded', false);
+			});
+		
+		if (!hidden) {
+			elm.setAttribute('aria-expanded', true);
+		}
+	}
+
 	document
-		.querySelectorAll('[data-id="' + id + '"]')
+		.querySelectorAll('.log-event')
 		.forEach(elm => {
-			elm.classList.toggle('hidden')
+			elm.addEventListener("click", evt => {
+				log_show_details(evt.currentTarget);
+			});
+			elm.addEventListener("keydown", evt => {
+				if (evt.keyCode == 13 || evt.keyCode == 32) {
+					log_show_details(evt.currentTarget);
+				}
+			});
 		});
-}
+})();