tinymce.full.js
function intersect(rect, cropRect) {
      var x1, y1, x2, y2;

      x1 = max(rect.x, cropRect.x);
      y1 = max(rect.y, cropRect.y);
      x2 = min(rect.x + rect.w, cropRect.x + cropRect.w);
      y2 = min(rect.y + rect.h, cropRect.y + cropRect.h);

      if (x2 - x1 < 0 || y2 - y1 < 0) {
        return null;
      }

      return create(x1, y1, x2 - x1, y2 - y1);
    }
function intersect(rect, cropRect) {
      var x1, y1, x2, y2;

      x1 = max(rect.x, cropRect.x);
      y1 = max(rect.y, cropRect.y);
      x2 = min(rect.x + rect.w, cropRect.x + cropRect.w);
      y2 = min(rect.y + rect.h, cropRect.y + cropRect.h);

      if (x2 - x1 < 0 || y2 - y1 < 0) {
        return null;
      }

      return create(x1, y1, x2 - x1, y2 - y1);
    }
function intersect ( rect , cropRect ) { var x1 , y1 , x2 , y2 ; x1 = max ( rect . x , cropRect . x ) ; y1 = max ( rect . y , cropRect . y ) ; x2 = min ( rect . x + rect . w , cropRect . x + cropRect . w ) ; y2 = min ( rect . y + rect . h , cropRect . y + cropRect . h ) ; if ( x2 - x1 < 0 || y2 - y1 < 0 ) { return null ; } return create ( x1 , y1 , x2 - x1 , y2 - y1 ) ; }
Returns the intersection of the specified rectangles.

@method intersect
@param {Rect} rect The first rectangle to compare.
@param {Rect} cropRect The second rectangle to compare.
@return {Rect} The intersection of the two rectangles or null if they don't intersect.
Returns the intersection of the specified rectangles .