DocumentOrShadowRoot - Web API 接口参考

Shadow DOM API 的 DocumentOrShadowRoot 接口提供了 documents 与 shadow roots 之间共享的 API。The following features are included in both Document and ShadowRoot.

属性

DocumentOrShadowRoot.activeElement只读: Returns the Element within the shadow tree that has focus.
DocumentOrShadowRoot.fullscreenElement只读: Returns the Element that's currently in full screen mode for this document.
DocumentOrShadowRoot.pointerLockElement 只读: Returns the element set as the target for mouse events while the pointer is locked. It returns null if lock is pending, the pointer is unlocked, or if the target is in another document.
DocumentOrShadowRoot.styleSheets只读: Returns a StyleSheetList of CSSStyleSheet objects for stylesheets explicitly linked into, or embedded in a document.

方法

DocumentOrShadowRoot.caretPositionFromPoint(): Returns a CaretPosition object containing the DOM node containing the caret, and caret's character offset within that node.
DocumentOrShadowRoot.elementFromPoint(): Returns the topmost element at the specified coordinates.
DocumentOrShadowRoot.elementsFromPoint(): Returns an array of all elements at the specified coordinates.
DocumentOrShadowRoot.getSelection(): Returns a Selection object representing the range of text selected by the user, or the current position of the caret.
DocumentOrShadowRoot.nodeFromPoint(): Returns the topmost node at the specified coordinates.
DocumentOrShadowRoot.nodesFromPoint(): Returns an array of all nodes at the specified coordinates.

Specifications

Specification	Status	Comment
Shadow DOM DocumentOrShadowRoot	Obsolete	Implementation in Shadow DOM.
DOM DocumentOrShadowRoot	Living Standard	Initial definition.

[1] This interface's features are still implemented on the Document object.