Collapse from anywhere (#102)

* Collapse from anywhere within child, instead of just when highlighting the expanded node itself.

Signed-off-by: Ross Hadden <rosshadden@gmail.com>

* Moved cursor to parent.

Signed-off-by: Ross Hadden <rosshadden@gmail.com>

* Properly handled collapsing arrays.

Signed-off-by: Ross Hadden <rosshadden@gmail.com>

fx.js

@@ -348,11 +348,17 @@ module.exports = function start(filename, source) {
     const [n, line] = getLine(program.y)
     program.showCursor()
     program.cursorPos(program.y, line.search(/\S/))
-    const path = index.get(n)
-    if (expanded.has(path)) {
-      expanded.delete(path)
-      render()
+    let path = index.get(n)
+    if (typeof path === 'string' && !expanded.has(path)) {
+      path = path.replace(/(\.[^\[\].]+|\[\d+\])$/, '')
+      for (let y = program.y; y >= 0; --y) {
+        const [n, line] = getLine(y)
+        program.cursorPos(y, line.search(/\S/))
+        if (index.get(n) === path) break
+      }
     }
+    expanded.delete(path)
+    render()
   })
 
   box.on('click', function (mouse) {