Add camera control toggle to preview edit functions

Signed-off-by: Justin Georgi <justin.georgi@gmail.com>

modules/glmv.js

@@ -463,6 +463,26 @@ toggleFullScreen = function(glCont) {
     }
 }
 
+/**
+ * Set camera control setting for the current view
+ * 
+ * @param {string} view
+ * @return {bool} new camera-controls setting
+ */
+toggleCameraControl = function(view) {
+    let [currentText, mvconfig] = extractMetadata()
+    let currentView = (mvconfig.viewerConfig[view]) ? view : 'default'
+    const newControl = !mvconfig.viewerConfig[currentView]['camera-controls']
+    if (newControl) {
+        mvconfig.viewerConfig[currentView]['camera-controls'] = newControl
+    } else {
+        delete mvconfig.viewerConfig[currentView]['camera-controls']
+    }
+    const textUpdate = currentText.replace(/(?<=<mvconfig>)([\S\s]*?)(?=<\/mvconfig>)/gm,`\n${JSON.stringify(mvconfig, null, 2)}\n`)
+    $('#wpTextbox1').val(textUpdate)
+    return newControl
+}
+
 /**
  * Set new default camera orbit and send values to the preview
  * editor