khalid/fixed dragging issues

src/windows/tracker.es6

@@ -225,6 +225,7 @@ export const track = (options, blankWindow) => {
       save_states();
    });
    blankWindow.on('dialogextendrestore',() => {
+      dialog.draggable({ containment: false })
       state.position.offset = dialog.offset();
       state.position.mode = 'normal';
       save_states();

src/windows/windows.es6

@@ -329,15 +329,21 @@ export const createBlankWindow = function($html,options) {
      dialog.draggable( "option", "scroll", true );
    }
    dialog.on('dragstop', () => {
-      const top = dialog.offset().top;
-      const left = dialog.offset().left;
-
-      if (top < 0) {
-         dialog.animate({ top: '0px' }, 300, dialog.trigger.bind(dialog, 'animated'));
+      const top         = dialog.offset().top;
+      const left        = dialog.offset().left;
+      const dialogWidth = blankWindow.dialog( "option", "width" );
+      const windowWidth = $(window).width();
+      const navHeight   = $('#nav-menu .container').height();
+
+      if (top < navHeight + 36) {
+         dialog.animate({ top: `${navHeight + 36}px` }, 300, dialog.trigger.bind(dialog, 'animated'));
       }
       if (left < 0) {
          dialog.animate({ left: '0px' }, 300, dialog.trigger.bind(dialog, 'animated'));
       }
+      if (left + dialogWidth > windowWidth) {
+         dialog.animate({ left: `${windowWidth - dialogWidth - 10}px` }, 300, dialog.trigger.bind(dialog, 'animated'));
+      }
    });
 
    if(options.destroy) { /* register for destroy event which have been patched */