constructor(x, y) {
        this.x = x;
        this.y = y;
        this._positionRelativeToEditorBrand = undefined;
    }
Coordinates relative to the the (top;left) of the editor that can be used safely with other internal editor metrics.
**NOTE**: This position is obtained by taking page coordinates and transforming them relative to the
editor's (top;left) position in a way in which scale transformations are taken into account.
**NOTE**: These coordinates could be negative if the mouse position is outside the editor.