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feat: add_caretPositionFromPoint #1651

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feat: add_caretPositionFromPoint #1651

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38 changes: 29 additions & 9 deletions src/sandbox/iframe/document.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -78,16 +78,36 @@ function patchDocumentPrototype (appName: string, microAppWindow: microAppWindow
const rawMicroGetElementsByName = microRootDocument.prototype.getElementsByName
const rawMicroElementFromPoint = microRootDocument.prototype.elementFromPoint
const rawMicroCaretRangeFromPoint = microRootDocument.prototype.caretRangeFromPoint
const rawMicroCaretPositionFromPoint = microRootDocument.prototype.caretPositionFromPoint

microRootDocument.prototype.caretRangeFromPoint = function caretRangeFromPoint (
x: number,
y: number,
): Range {
// 这里this指向document才可以获取到子应用的document实例，range才可以被成功生成
const element = rawMicroElementFromPoint.call(rawDocument, x, y)
const range = rawMicroCaretRangeFromPoint.call(rawDocument, x, y)
updateElementInfo(element, appName)
return range
/**
* Firefox does not support caretRangeFromPoint
* @see https://developer.mozilla.org/zh-CN/docs/Web/API/Document/caretRangeFromPoint
*/
if (isFunction(rawMicroCaretRangeFromPoint)) {
microRootDocument.prototype.caretRangeFromPoint = function caretRangeFromPoint (
x: number,
y: number,
): Range {
// 这里this指向document才可以获取到子应用的document实例，range才可以被成功生成
const element = rawMicroElementFromPoint.call(rawDocument, x, y)
const range = rawMicroCaretRangeFromPoint.call(rawDocument, x, y)
updateElementInfo(element, appName)
return range
}
}

if (isFunction(rawMicroCaretPositionFromPoint)) {
microRootDocument.prototype.caretPositionFromPoint = function caretPositionFromPoint (
x: number,
y: number,
): CaretPosition {
// 这里this指向document才可以获取到子应用的document实例，range才可以被成功生成
const element = rawMicroElementFromPoint.call(rawDocument, x, y)
const range = rawMicroCaretPositionFromPoint.call(rawDocument, x, y)
updateElementInfo(element, appName)
return range
}
}

microRootDocument.prototype.createElement = function createElement (
Expand Down