ready();
document.addEventListener("readystatechange", function () {
    var readyState = document.readyState;
    if (readyState !== "loading") {
        console.log(readyState);
        ready();
    }
});
document.addEventListener("DOMContentLoaded", function () {
    console.log("DOMContentLoaded");
    ready();
});
function ready() {
    document.body.addEventListener("DOMNodeInserted", function () {
        webInput();
    });
    webInput();
}
function webInput() {
    var input = document.querySelectorAll("input") || [];
    console.log("input -> " + input.length);
    if (input.length === 0) {
        return;
    }
    input.forEach(function (value) {
        var type = value.getAttribute("type");
        console.log("type -> " + type);
        if (type === null
            || type === "number"
            || type === "search"
            || type === "password"
            || type === "tel"
            || type === "email"
            || type === "url"
            || type === "text") {
            value.removeEventListener("click", webInput2Android);
            value.removeEventListener("focus", webInput2Android);
            value.addEventListener("click", webInput2Android);
            value.addEventListener("focus", webInput2Android);
        }
    });
}
function webInput2Android() {
    console.log("webInput2Android");
    var offset = getOffset(this);
    var x = offset.x;
    var y = offset.y;
    console.log("x:y --> " + x + ":" + y);
    var width = this.offsetWidth;
    var height = this.offsetHeight;
    console.log("w:h --> " + width + ":" + height);
	// Send to Android
}
function getOffset (el) {
    var box = el.getBoundingClientRect();
    return {
        x: box.left + window.pageXOffset - document.documentElement.clientLeft,
        y: box.top + window.pageYOffset - document.documentElement.clientTop
    }
}

public void run() {
    Activity activity = mActivityReference.get();
    WebView webView = mWebViewReference.get();
    if (activity == null || webView == null) {
        return;
    }
    // JS 傳入的輸入框左下角 Y 坐標(biāo)
    int bottom = mWebInput.getBottom();
    // 獲取軟鍵盤頂部的 Y 坐標(biāo)
    int keyboardTop = KeyboardHelper.getKeyboardTop(activity);
    // WebView 當(dāng)前滾動(dòng)的距離
    int scrollY = webView.getScrollY();
    // 判斷軟鍵盤是否彈出
    if (keyboardTop != -1) {
        // 判斷輸入框是否被軟鍵盤遮擋
        if (bottom >= keyboardTop) {
            // 計(jì)算滾動(dòng)距離
            int diff = bottom - keyboardTop - scrollY;
            // 滾動(dòng) WebView diff + mDistance 距離，mDistance 默認(rèn) 50，
            // diff + mDistance：即軟鍵盤距離輸入框底部 50 距離 
            webView.assistWebKeyboard(scrollY, diff + mDistance);
        } else {
            // 判斷 WebView 是否有滾動(dòng)
            if (scrollY != 0) {
                // 滾動(dòng) WebView
                webView.assistWebKeyboard(scrollY, -scrollY);
            }
        }
    }
}