Google Docs-以编程方式将鼠标单击发送到大纲窗格中的项目

从 this answer :

var simulateMouseEvent = function(element, eventName, coordX, coordY) {
  element.dispatchEvent(new MouseEvent(eventName, {
    view: window,
    bubbles: true,
    cancelable: true,
    clientX: coordX,
    clientY: coordY,
    button: 0
  }));
};

var elementToClick = document.querySelector('#mytest1');

var box = elementToClick.getBoundingClientRect(),
    coordX = box.left + (box.right - box.left) / 2,
    coordY = box.top + (box.bottom - box.top) / 2;

simulateMouseEvent (elementToClick, "mousedown", coordX, coordY);
simulateMouseEvent (elementToClick, "mouseup", coordX, coordY);
simulateMouseEvent (elementToClick, "click", coordX, coordY);