// ==UserScript==
// @name         HTML5 Video Player Enhance
// @version      2.9.0a1
// @description  To enhance the functionality of HTML5 Video Player (h5player) supporting all websites using shortcut keys similar to PotPlayer.
// @author       CY Fung
// @match        http://*/*
// @match        https://*/*
// @run-at       document-start
// @require https://cdnjs.cloudflare.com/ajax/libs/js-sha256/0.9.0/sha256.min.js
// @require https://cdnjs.cloudflare.com/ajax/libs/mathjs/9.3.2/math.js
// @namespace https://greasyfork.org/users/371179
// @grant   GM_getValue
// @grant   GM_setValue
// @downloadURL none
// ==/UserScript==


/**
 * Remarks
 * fullscreen and pointerLock   buggy in shadowRoot
 * Space Pause not success
 * shift F key issue
 **/
(function $$($hs) {
    'use strict';

    if (!document || !document.documentElement) return window.requestAnimationFrame($$);

    let _debug_h5p_logging_ = false;

    try {
        _debug_h5p_logging_ = +window.localStorage.getItem('_h5_player_sLogging_') > 0
    } catch (e) {

    }


    const SHIFT = 1;
    const CTRL = 2;
    const ALT = 4;
    const TERMINATE = 0x842;

    const _sVersion_ = 1817;



    const str_postMsgData = '__postMsgData__'

    const dround = function(x) {
        return ~~(x + .5)
    }

    const jsonStringify_replacer = function(key, val) {
        // convert RegExp to string
        if (val && (val instanceof Element || val instanceof Document)) {
            return toString.call(val);
        } else if (name === 'st12131r') { //
            return undefined; // remove from result
        } else {
            return val; // return as is
        }
    };

    const jsonParse = function() {
        let res = null;
        try {
            res = JSON.parse.apply(this, arguments)
        } catch (e) {

        }
        return res;
    }
    const jsonStringify = function() {
        let res = null;
        let value = arguments[0];
        let replacer = arguments[1];
        replacer = jsonStringify_replacer;
        let space = arguments[2];
        let arg = [value, replacer, space]
        if (arguments.length <= 2) arg.length = 2;
        try {
            res = JSON.stringify.apply(this, arg)
        } catch (e) {

        }
        return res;
    }

    function _postMsg() {
        //async is needed. or error handling for postMessage
        const [win, tag, ...data] = arguments;
        if (typeof tag == 'string') {
            let postMsgObj = {
                tag,
                passing: true,
                winOrder: _postMsg.a
            }
            try {
                var k = 'msg-' + (+new Date)
                win.document[str_postMsgData] = win.document[str_postMsgData] || {}
                win.document[str_postMsgData][k] = data; //direct
                postMsgObj.str = k;
                postMsgObj.stype = 1;
            } catch (e) {}
            if (!postMsgObj.stype) {
                postMsgObj.str = jsonStringify({
                    d: data
                })
                if (postMsgObj.str && postMsgObj.str.length) postMsgObj.stype = 2;
            }
            if (!postMsgObj.stype) {
                postMsgObj.str = "" + data;
                postMsgObj.stype = 0;
            }
            win.postMessage(postMsgObj, '*');
        }

    }

    function postMsg() {
        let win = window;
        var a = 0;
        while (win = win.parent) {
            _postMsg.a = ++a;
            _postMsg(win, ...arguments)
            if (win == top) break;
        }
    }


    const getRoot = (elm) => elm.getRootNode instanceof Function ? elm.getRootNode() : (elm.ownerDocument || null);

    const isShadowRoot = (elm) => (elm && ('host' in elm)) ? elm.nodeType == 11 && !!elm.host && elm.host.nodeType == 1 : null; //instanceof ShadowRoot

    //  built-in hash - https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/digest
    async function digestMessage(message) {
        return window.sha256(message)
    }

    //https://gist.github.com/joyrexus/7304146
    // requestAnimationFrame() shim by Paul Irish
    let requestAnimationFrame = (function() {
        return window.requestAnimationFrame ||
            window.webkitRequestAnimationFrame ||
            window.mozRequestAnimationFrame ||
            window.oRequestAnimationFrame ||
            window.msRequestAnimationFrame ||
            function(callback, element) {
                return window.setTimeout(callback, 1000 / 60);
            };
    })();

    let cancelAnimationFrame = (function() {
        return window.cancelAnimationFrame ||
            window.webkitCancelAnimationFrame ||
            window.webkitCancelRequestAnimationFrame ||
            window.mozCancelRequestAnimationFrame ||
            window.oCancelRequestAnimationFrame ||
            window.msCancelRequestAnimationFrame ||
            clearInterval;
    })();

    function lowerKeyCode(keyCode) {
        if (keyCode >= 65 && keyCode <= 90) keyCode += 32;
        return keyCode
    }

    function whichTransitionEvent(type) {
        if (whichTransitionEvent['_result_' + type]) return whichTransitionEvent['_result_' + type]
        var t,
            el = document.createElement("fakeelement");

        const capital = (x) => x[0].toUpperCase() + x.substr(1);
        const capitalType = capital(type);

        const transitions = {
            [type]: `${type}end`,
            [`O${capitalType}`]: `o${capitalType}End`,
            [`Moz${capitalType}`]: `${type}end`,
            [`Webkit${capitalType}`]: `webkit${capitalType}End`,
            [`MS${capitalType}`]: `MS${capitalType}End`
        }

        for (t in transitions) {
            if (el.style[t] !== undefined) {
                return (whichTransitionEvent['_result_' + type] = transitions[t]);
            }
        }
    }

    Element.prototype.__matches =
        Element.prototype.matchesSelector ||
        Element.prototype.mozMatchesSelector ||
        Element.prototype.msMatchesSelector ||
        Element.prototype.oMatchesSelector ||
        Element.prototype.webkitMatchesSelector ||
        function(s) {
            var matches = ('getRootNode' in this ? this.getRootNode() : this.document || this.ownerDocument).querySelectorAll(s),
                i = matches.length;
            while (--i >= 0 && matches.item(i) !== this) {}
            return i > -1;
        };

    Element.prototype.__requestPointerLock = Element.prototype.requestPointerLock ||
        Element.prototype.mozRequestPointerLock ||
        Element.prototype.webkitRequestPointerLock;

    // Ask the browser to release the pointer
    Document.prototype.__exitPointerLock = Document.prototype.exitPointerLock ||
        Document.prototype.mozExitPointerLock ||
        Document.prototype.webkitExitPointerLock;

    class ResizeODM {
        static __init__() {
            this.__resizerCount__ = 0;
            this.__resizeListeners__ = {};
        }
        constructor() {
            let rm = this;
            ResizeODM.__resizerCount__++;
            let rpid = "rpid-" + ResizeODM.__resizerCount__;
            ResizeODM.__resizeListeners__[rpid] = [];

            rm._resizer_listeners = ResizeODM.__resizeListeners__[rpid];

            var odm = document.createElement('object');
            odm.setAttribute('_resizer_odm_', rpid);
            odm.setAttribute('style', 'display: block; position: absolute; top: -300vh; left: -300vw; height: 100%; width: 100%; overflow: hidden; pointer-events: none; z-index: -1;');
            odm.onload = ResizeODM.objectLoad;
            odm.type = 'text/html';
            odm.data = 'about:blank';
            rm.odm = odm;
            rm.rpid = rpid;
            rm.odm.__rm__ = rm;
        }

        static find(rsElm) {
            if (!rsElm) return null;
            let odm = Array.prototype.slice.call(rsElm.querySelectorAll('object[_resizer_odm_]')).filter(elm => elm.parentNode == rsElm)[0];
            if (!odm) return null;

            return odm.__rm__ || null;

        }

        static resizeListener(e) {
            let odv = e.target || e.srcElement;
            let rm = odv._resizer_rm;
            if (rm.__resizeRAF__) cancelAnimationFrame(rm.__resizeRAF__);
            rm.__resizeRAF__ = requestAnimationFrame(function() {
                rm.__resizeRAF__ = 0;
                rm._resizer_listeners.forEach(fn => fn.call(rm, e));
            });
        }

        static objectLoad(e) {
            let odm = this;
            let rm = odm.__rm__;
            let odv = odm.contentDocument.defaultView
            odv._resizer_rm = rm;
            rm.odv = odv;
            odv.onresize = ResizeODM.resizeListener;
        }

        resizeElement() {
            return this.odm.parentNode;
        }

        // ResizeODM.relativeParent(rsElm);

        relativeParent(rsElm, existingnode = null) {
            let odm = this.odm;
            rsElm = rsElm || odm.parentNode;
            let rpid = this.rpid;
            //if (getComputedStyle(rsElm).position == 'static') rsElm.style.position = 'relative';
            rsElm.insertBefore(odm, existingnode);
        }

        listen(fn) {
            this._resizer_listeners.push(fn);
        }

        unlisten(fn) {
            this._resizer_listeners.splice(this._resizer_listeners.indexOf(fn), 1);
        }

        remove() {
            this._resizer_listeners.length = 0;
            this.odv.onresize = null;
            this.odm.onload = null;
        }

    }
    ResizeODM.__init__();

    //let __activeElementsToggles=[];

    function isInOperation(elm) {
        let elmInFocus = elm || document.activeElement;
        if (!elmInFocus) return false;
        let res1 = elmInFocus.__matches(
            'a[href],link[href],button,input:not([type="hidden"]),select,textarea,iframe,frame,menuitem,[draggable],[contenteditable]'
        );
        return res1;
    }

    class SimEvent extends Event {
        constructor(typeArg, eventInit, customType) {
            super(typeArg, eventInit);
            this.__customType = customType;
        }
        get type() {
            return this.__customType;
        }
    }

    const _evtOB_create = function(_EVT, d) {
        let keys = Object.keys(_EVT.prototype);
        let res = function Event(m) {
            let o = this
            keys.forEach(k => (k in m && !(k in o)) ? (o[k] = m[k]) : null);
            Object.assign(o, d);
        }
        return res
    }
    _evtOB_create._timeupdate = function() {
        if (_evtOB_create.__timeupdate) return _evtOB_create.__timeupdate;
        let res = _evtOB_create(Event, {
            isTrusted: true,
            type: 'timeupdate'
        })
        return _evtOB_create.__timeupdate = res;
    }
    const sim_arg_1_fn = function(f, evtOB) {
        return function(e) {
            let o = new evtOB(e);
            let arg = Array.prototype.slice.call(arguments)
            arg[0] = o
            //console.log('success',[...arg])
            return f.apply(this, arg)
        }
    }

    const fn_toString = (f, n = 50) => {
        let s = (f + "");
        if (s.length > 2 * n + 5) {
            s = s.substr(0, n) + ' ... ' + s.substr(-n);
        }
        return s
    };

    //let p={};for(let k in x) if(! (k in document.body))p[k]=x[k];p

    const _ell_timeupdatefs = [];

    let _endlessloop = null;

    class EndlessLoop {
        constructor() {
            this.activeLoopsCount = 0;
            this.loops = [];
            this.cid = 0;
            this._loop = () => {
                if (!this.cid) return; //cancelled
                this.loops.forEach(loop => loop.opt.looping ? loop.fn(loop.opt) : null);
                this.cid = requestAnimationFrame(this._loop);
            }
        }

        loopStart() {
            this.looping = true;
            this.cid = requestAnimationFrame(this._loop);
        }
        loopStop() {
            if (this.cid) cancelAnimationFrame(this.cid);
            this.cid = 0;
            this.looping = false;
        }
        append(fn) {
            const opt = new EndlessLoopOpts(this);
            this.loops.push({
                fn,
                opt
            });
            return opt;
        }
    }

    class EndlessLoopOpts {
        constructor(ell) {
            this._looping = false;
            this._ell = ell;
        }
        _loop() {
            this._ell.loops.some(loop => loop.opt === this && loop.opt.looping ? (loop.fn(loop.opt), true) : null);
        }
        get looping() {
            return this._looping;
        }
        loopingStart() {
            if (this._looping === false) {
                this._looping = true;
                this._ell.activeLoopsCount++;
                if (this._ell.activeLoopsCount == 1) this._ell.loopStart();
            }
        }
        loopingStop() {
            if (this._looping === true) {
                this._looping = false;
                this._ell.activeLoopsCount--;
                if (this._ell.activeLoopsCount == 0) this._ell.loopStop();
            }
        }
    }

    const isIframe = (window.top !== window.self && window.top && window.self);

    function consoleLog() {
        if (!_debug_h5p_logging_) return;
        if (isIframe) postMsg('consoleLog', ...arguments);
        else console.log.apply(console, arguments);
    }

    function consoleLogF() {
        if (isIframe) postMsg('consoleLog', ...arguments);
        else console.log.apply(console, arguments);
    }

    const Store = {
        prefix: '_h5_player',
        save: function(k, v) {
            if (!Store.available()) return false;
            if (typeof v != 'string') return false;
            Store.LS.setItem(Store.prefix + k, v)
            let sk = fn_toString(k + "", 30);
            let sv = fn_toString(v + "", 30);
            consoleLog(`localStorage Saved "${sk}" = "${sv}"`)
            return true;

        },
        read: function(k) {
            if (!Store.available()) return false;
            let v = Store.LS.getItem(Store.prefix + k)
            let sk = fn_toString(k + "", 30);
            let sv = fn_toString(v + "", 30);
            consoleLog(`localStorage Read "${sk}" = "${sv}"`);
            return v;

        },
        remove: function(k) {

            if (!Store.available()) return false;
            Store.LS.removeItem(Store.prefix + k)
            let sk = fn_toString(k + "", 30);
            consoleLog(`localStorage Removed "${sk}"`)
            return true;
        },
        clearInvalid: function(sVersion) {
            if (!Store.available()) return false;

            //let sVersion=1814;
            if (+Store.read('_sVersion_') < sVersion) {
                Object.keys(localStorage).filter(s => s.indexOf(Store.prefix) === 0).forEach(key => window.localStorage.removeItem(key))
                Store.save('_sVersion_', sVersion + '')
                return 2;
            }
            return 1;

        },
        available: function() {
            if (Store.LS) return true;
            if (!window) return false;
            const localStorage = window.localStorage;
            if (!localStorage) return false;
            if (typeof localStorage != 'object') return false;
            if (!('getItem' in localStorage)) return false;
            if (!('setItem' in localStorage)) return false;
            Store.LS = localStorage;
            return true;

        }

    }

    const domTool = {
        nopx: (x) => +x.replace('px', ''),
        cssWH: function(m) {
            let r = getComputedStyle(m, null);
            let c = (x) => +x.replace('px', '');
            return {
                w: m.offsetWidth || c(r.width),
                h: m.offsetHeight || c(r.height)
            }
        },
        _cssWH: function(m, r) {
            let c = (x) => +x.replace('px', '');
            return {
                w: m.offsetWidth || c(r.width),
                h: m.offsetHeight || c(r.height)
            }
        },
        _isActionBox_1: function(vEl, pEl) {

            let vElCSS = domTool.cssWH(vEl);
            let vElCSSw = vElCSS.w;
            let vElCSSh = vElCSS.h;

            let vElx = vEl;
            let res = [];
            let mLevel = 0;
            if (vEl && pEl && vEl != pEl && pEl.contains(vEl)) {
                while (vElx && vElx != pEl) {
                    vElx = vElx.parentNode;
                    let vElx_css = null;
                    if (isShadowRoot(vElx)) {} else {
                        vElx_css = getComputedStyle(vElx, null);
                        let vElx_wp = domTool.nopx(vElx_css.paddingLeft) + domTool.nopx(vElx_css.paddingRight)
                        vElCSSw += vElx_wp
                        let vElx_hp = domTool.nopx(vElx_css.paddingTop) + domTool.nopx(vElx_css.paddingBottom)
                        vElCSSh += vElx_hp
                    }
                    res.push({
                        level: ++mLevel,
                        padW: vElCSSw,
                        padH: vElCSSh,
                        elm: vElx,
                        css: vElx_css
                    })

                }
            }

            // in the array, each item is the parent of video player
            res.vEl_cssWH = vElCSS

            return res;

        },
        _isActionBox: function(vEl, walkRes, pEl_idx) {

            function absDiff(w1, w2, h1, h2) {
                let w = (w1 - w2),
                    h = h1 - h2;
                return [(w > 0 ? w : -w), (h > 0 ? h : -h)]
            }

            function midPoint(rect) {
                return {
                    x: (rect.left + rect.right) / 2,
                    y: (rect.top + rect.bottom) / 2
                }
            }

            let parentCount = walkRes.length;
            if (pEl_idx >= 0 && pEl_idx < parentCount) {} else {
                return;
            }
            let pElr = walkRes[pEl_idx]
            if (!pElr.css) {
                //shadowRoot
                return true;
            }

            let pEl = pElr.elm;

            //prevent activeElement==body
            let pElCSS = domTool._cssWH(pEl, pElr.css);
            //let vElCSS=walkRes.vEl_cssWH;

            //check prediction of parent dimension
            let d1v = absDiff(pElCSS.w, pElr.padW, pElCSS.h, pElr.padH)

            let d1x = d1v[0] < 10
            let d1y = d1v[1] < 10;

            if (d1x && d1y) return true; //both edge along the container   -  fit size
            if (!d1x && !d1y) return false; //no edge along the container     -  body contain the video element, fixed width&height

            //case: youtube video fullscreen

            //check centre point

            let pEl_rect = pEl.getBoundingClientRect()
            let vEl_rect = vEl.getBoundingClientRect()

            let pEl_center = midPoint(pEl_rect)
            let vEl_center = midPoint(vEl_rect)

            let d2v = absDiff(pEl_center.x, vEl_center.x, pEl_center.y, vEl_center.y);

            let d2x = d2v[0] < 10;
            let d2y = d2v[1] < 10;

            return (d2x && d2y);

        },
        getRect: function(element) {
            let rect = element.getBoundingClientRect();
            let scroll = domTool.getScroll();
            return {
                pageX: rect.left + scroll.left,
                pageY: rect.top + scroll.top,
                screenX: rect.left,
                screenY: rect.top
            };
        },
        isHalfFullClient: function(element) {
            var client = domTool.getClient();
            var rect = domTool.getRect(element);
            if ((Math.abs(client.width - element.offsetWidth) < 21 && rect.screenX < 20) || (Math.abs(client.height - element.offsetHeight) < 21 && rect.screenY < 10)) {
                if (Math.abs(element.offsetWidth / 2 + rect.screenX - client.width / 2) < 10 && Math.abs(element.offsetHeight / 2 + rect.screenY - client.height / 2) < 10) {
                    return true;
                } else {
                    return false;
                }
            } else {
                return false;
            }
        },
        isAllFullClient: function(element) {
            var client = domTool.getClient();
            var rect = domTool.getRect(element);
            if ((Math.abs(client.width - element.offsetWidth) < 21 && rect.screenX < 20) && (Math.abs(client.height - element.offsetHeight) < 21 && rect.screenY < 10)) {
                return true;
            } else {
                return false;
            }
        },
        getScroll: function() {
            return {
                left: document.documentElement.scrollLeft || document.body.scrollLeft,
                top: document.documentElement.scrollTop || document.body.scrollTop
            };
        },
        getClient: function() {
            return {
                width: document.compatMode == 'CSS1Compat' ? document.documentElement.clientWidth : document.body.clientWidth,
                height: document.compatMode == 'CSS1Compat' ? document.documentElement.clientHeight : document.body.clientHeight
            };
        },
        addStyle: //GM_addStyle,
            function(css, head) {
                if (!head) {
                    let _doc = document.documentElement;
                    head = _doc.querySelector('head') || _doc.querySelector('html') || _doc;
                }
                let doc = head.ownerDocument;
                let style = doc.createElement('style');
                style.type = 'text/css';
                let node = doc.createTextNode(css);
                style.appendChild(node);
                head.appendChild(style);
                //console.log(document.head,style,'add style')
                return style;
            },
        eachParentNode: function(dom, fn) {
            let parent = dom.parentNode
            while (parent) {
                let isEnd = fn(parent, dom)
                parent = parent.parentNode
                if (isEnd) {
                    break
                }
            }
        },

        hideDom: function hideDom(selector) {
            let dom = document.querySelector(selector)
            if (dom) {
                requestAnimationFrame(function() {
                    dom.style.opacity = 0;
                    dom.style.transform = 'translate(-9999px)';
                    dom = null;
                })
            }
        }
    };

    const handle = {

        timeupdatef_ell: async function(opts) {
            let video = opts.video;
            let time = video.currentTime;
            if (time !== opts.lastTime) {
                opts.lastTime = time;
                video.dispatchEvent(opts.evt);
            }
        },
        playbackELL: async (opts) => {

            let qTime = +new Date;
            if (qTime >= opts.pTime) {
                opts.pTime = qTime + opts.timeDelta; //prediction of next Interval
                opts.playbackRecord()
            }

        },
        playbackRecord: async function() {

            //this refer to endless's opts
            let player = this.player;

            let _uid = this.player_uid; //_h5p_uid_encrypted
            if (!_uid) return;

            let shallSave = true;
            let currentTimeToSave = ~~player.currentTime;

            if (this._lastSave == currentTimeToSave) shallSave = false;

            if (shallSave) {

                this._lastSave = currentTimeToSave

                //console.log('aasas',this.player_uid, shallSave, '_play_progress_'+_uid, currentTimeToSave)

                Store.save('_play_progress_' + _uid, jsonStringify({
                    't': currentTimeToSave
                }))

            }

        },
        pr_updateUID: function() {

            //this refer to endless's opts

            let player = this.player;

            let _uid = player.getAttribute('_h5p_uid_encrypted') || ''
            if (!_uid) return false;
            this.player_uid = _uid;

            return true;

        },

    };

    class VideoListener {
        constructor(shadowRoot) {
            this.usable = false;
            this.rootElement = shadowRoot || window.document;
            if (this.rootElement) {
                if (this.rootElement.__videoListenerEnabled__) {

                } else {
                    this.rootElement.__videoListenerEnabled__ = true;
                    this.usable = true;
                }

            }
            this.observer = null;
            this._check = () => this.checkEach();

        }
        listen(fn) {
            if (!this.usable) return;
            this.init_observer();
            this.fn = fn; // single function
            this.checkOnce();
            this.checkEach();
        }
        init_observer() {
            if (this.observer) return;
            this.observer = new window.__MutationObserver(this.mutationObserverCallback);
            this.observer.observe(this.rootElement, {
                childList: true,
                subtree: true
            })
            this.observer.videoListener = this;
        }
        mutationObserverCallback(mutations, observer) {

            let videoListener = observer.videoListener;

            let requireChecking = false;

            if (mutations && 'length' in mutations) {
                requireChecking = Array.prototype.some.call(mutations, mutation => {
                    let addedNodes = mutation.addedNodes;
                    if (addedNodes && addedNodes.length) {
                        Array.prototype.forEach.call(addedNodes, addedNode => {
                            if (addedNode.shadowRoot) consoleLog('tt', addedNode.shadowRoot)
                        })
                        return Array.prototype.some.call(addedNodes, addedNode => {

                            if (addedNode.nodeName == 'VIDEO' || addedNode.childElementCount > 0) {
                                return true;
                            }
                            return false;

                        })
                    }

                    return false;

                })

            }

            if (requireChecking) {
                if (videoListener.cid) cancelAnimationFrame(videoListener.cid);
                videoListener.cid = requestAnimationFrame(videoListener._check);
            }

        }

        async checkOnce() {

            var treeWalker = document.createTreeWalker(
                document.documentElement,
                NodeFilter.SHOW_ELEMENT, {
                    acceptNode: function(node) {
                        return node.shadowRoot ? NodeFilter.FILTER_ACCEPT : NodeFilter.FILTER_SKIP;
                    }
                },
                false
            );
            var nodeList = [];

            while (treeWalker.nextNode()) nodeList.push(treeWalker.currentNode);

            nodeList.forEach(node => this._checkRoot(node.shadowRoot))

        }

        async checkEach() {

            this._checkRoot(this.rootElement)

        }
        _checkRoot(shadowRoot) {


            let videos = shadowRoot.querySelectorAll('VIDEO'); //shadowRoot don't have getElementsByTagName
            for (let video of videos) {

                if (!video._isMutationReady_) {
                    video._isMutationReady_ = true
                    video.setAttribute('h5p_observed', '1');
                    this.fn(video)

                }
            }

        }
    }
    window.__MutationObserver = window.MutationObserver || window.WebKitMutationObserver || null

    const _keyMap = function(arr, obj) {

        let res = {}
        arr.forEach((key) => {
            res[key] = key.charCodeAt(0)
        })
        Object.assign(res, obj)
        return res;

    }

    const _shadowDomList_ = [];

    $hs = {

        pictureInPicture: function(videoElm) {
            if (document.pictureInPictureElement) document.exitPictureInPicture();
            else {
                ('requestPictureInPicture' in videoElm) ? videoElm.requestPictureInPicture(): $hs.tips('PIP is not supported.');
            }

        },

        bindEventsToElm: function(elm, evlistener) {

            if (elm._action_eventsBind !== evlistener) {
                elm._action_eventsBind = evlistener;

                elm[evlistener]('mouseenter', $hs.handlerElementMouseEnter)
                elm[evlistener]('mousedown', $hs.handlerElementMouseDown)
                elm[evlistener]('dblclick', $hs.handlerElementDblClick, true)
                elm[evlistener]('wheel', $hs.handlerElementWheelTuneVolume);

            }

        },
        handlerVideoPlaying: function(evt) {

            $hs._actionBoxSet(evt.target);
            $hs.playerInstance = evt.target;
            $hs.onVideoTriggering();

            if (!$hs.enable) return $hs.tips(false);
            let player = this;
            if (player._isThisPausedBefore_) consoleLog('resumed')
            let _pausedbefore_ = player._isThisPausedBefore_

            if (player.playpause_cid) {
                clearTimeout(player.playpause_cid);
                player.playpause_cid = 0;
            }
            let _last_paused = player._last_paused
            player._last_paused = player.paused
            if (_last_paused === !player.paused) {
                player.playpause_cid = setTimeout(() => {
                    if (player.paused === !_last_paused && !player.paused && _pausedbefore_) {
                        $hs.tips('Playback resumed', undefined, 2500)
                    }
                }, 90)
            }

            /* 播放的時候進行相關同步操作 */

            if (!player._record_continuous) {

                /* 同步之前設定的播放速度 */
                $hs.setPlaybackRate()

                if (!_endlessloop) {
                    _endlessloop = new EndlessLoop();
                }
                player._record_continuous = _endlessloop.append(handle.playbackELL);
                player._record_continuous._lastSave = -999;

                player._record_continuous.timeDelta = 2000;
                player._record_continuous.player = player
                player._record_continuous.playbackRecord = handle.playbackRecord;
                player._record_continuous.updateUID = handle.pr_updateUID;

                player._record_continuous.playingWithRecording = function() {

                    let player = this.player;

                    if (!player.paused && this.updateUID() && !this.looping) {
                        this.pTime = 0;
                        this.loopingStart();


                    }

                }

            }

            player._record_continuous.playingWithRecording(player); //try to start recording

            _ell_timeupdatefs.forEach(opts => opts.loopingStart());

            player._isThisPausedBefore_ = false;

        },
        handlerVideoPause: function() {

            if (!$hs.enable) return $hs.tips(false);
            let player = this;
            consoleLog('pause')
            player._isThisPausedBefore_ = true;
            //requestAnimationFrame(() => h5Player.tips('Playback paused', undefined, 2500))


            let _last_paused = player._last_paused
            player._last_paused = player.paused
            if (player.playpause_cid) {
                clearTimeout(player.playpause_cid);
                player.playpause_cid = 0;
            }
            if (_last_paused === !player.paused) {
                player.playpause_cid = setTimeout(() => {
                    if (player.paused === !_last_paused && player.paused) {
                        $hs.tips('Playback paused', undefined, 2500)
                    }
                }, 90)
            }


            if (player._record_continuous && player._record_continuous.looping) {
                player._record_continuous.playbackRecord(); //playbackRecord once before stopping  //handle.playbackRecord;
                player._record_continuous.loopingStop();
            }

            _ell_timeupdatefs.forEach(opts => opts.loopingStop());

        },
        handlerVideoVolumeChange: function() {

            if (this.volume >= 0) {} else {
                return;
            }
            let cVol = this.volume;
            let cMuted = this.muted;

            if (cVol === this._volume_p && cMuted === this._muted_p) {
                // nothing changed
            } else if (cVol === this._volume_p && cMuted !== this._muted_p) {
                // muted changed
            } else { // cVol != pVol

                // only volume changed

                let shallShowTips = this._volume >= 0; //prevent initialization

                if (!cVol) {
                    this.muted = true;
                } else if (cMuted) {
                    this.muted = false;
                    this._volume = cVol;
                } else if (!cMuted) {
                    this._volume = cVol;
                }
                consoleLog('volume changed')

                let player = this;

                if (shallShowTips) $hs.tips('Volume: ' + dround(player.volume * 100) + '%', undefined, 3000)

            }

            this._volume_p = cVol
            this._muted_p = cMuted

        },
        handlerVideoLoadedMetaData: function() {
            consoleLog('video size', this.videoWidth + ' x ' + this.videoHeight);

            let player = this
            let vpid = player.getAttribute('_h5ppid') || null;
            if (!vpid || !player.currentSrc) return;

            if ($hs.varSrcList[vpid] != player.currentSrc) {
                $hs.varSrcList[vpid] = player.currentSrc;
                $hs.videoSrcFound(player);
                $hs._actionBoxSet(player);
            }

            if (!player.__video_loaded__) {
                player.__video_loaded__ = 1;
                player.addEventListener('playing', $hs.handlerVideoPlaying)
                player.addEventListener('pause', $hs.handlerVideoPause);
                player.addEventListener("volumechange", $hs.handlerVideoVolumeChange);
            }

        },
        handlerElementMouseEnter: function(evt) {
            let player = evt.target;
            if (player.nodeName != "VIDEO") player = player.querySelector('video[_h5ppid]');
            if (player) $hs._actionBoxSet(player);
        },
        handlerElementMouseDown: function(evt) {
            let player = this; //evt.target may be something else
            if (player.nodeName != "VIDEO") player = player.querySelector('video[_h5ppid]');
            if (!player) return;
            let {
                layoutBox,
                wPlayer
            } = $hs.getLayoutBox(player);
            if (layoutBox && layoutBox.contains(evt.target)) {
                $hs.makeFocus(player, evt)
            }
        },
        handlerElementWheelTuneVolume: function(evt) {

            if (!evt.shiftKey) return;
            if (evt.deltaY) {
                let player = $hs.player();
                if (!$hs || !player) return;

                if (evt.deltaY > 0) {

                    if ((player.muted && player.volume === 0) && player._volume > 0) {

                        player.muted = false;
                        player.volume = player._volume;
                    } else if (player.muted && (player.volume > 0 || !player._volume)) {
                        player.muted = false;
                    }
                    $hs.tuneVolume(-0.05)

                    evt.stopPropagation()
                    evt.preventDefault()
                    return false

                } else if (evt.deltaY < 0) {

                    if ((player.muted && player.volume === 0) && player._volume > 0) {

                        player.muted = false;
                        player.volume = player._volume;
                    } else if (player.muted && (player.volume > 0 || !player._volume)) {
                        player.muted = false;
                    }
                    $hs.tuneVolume(+0.05)

                    evt.stopPropagation()
                    evt.preventDefault()
                    return false

                }
            }
        },
        handlerElementDblClick: function(evt) {

            consoleLog('dblclick', this, evt.target)

            if (this.nodeName == 'VIDEO' && evt.target.nodeName == 'VIDEO' && this.getAttribute('_h5p_actionbox_')) {
                return;
            }
            if (document.readyState != "complete") return;

            let elm = (evt.target != this && this.contains(evt.target)) ? this : evt.target;
            //  www.tucao.one   ;  evt.target = bullet curtain;  this = actionbox

            let vpid = elm.getAttribute('_h5p_actionbox_') || elm.getAttribute('_h5ppid') || null;
            if (!vpid) return;
            let player = getRoot(elm).querySelector(`[_h5ppid="${vpid}"]`);
            $hs._actionBoxSet(player)
            $hs.playerInstance = player
            $hs.onVideoTriggering()

            $hs.callFullScreenBtn();

            evt.stopPropagation()
            evt.preventDefault()
            return false

        },
        handlerDocFocusOut: function(e) {
            let doc = this;
            $hs.focusFxLock = true;
            requestAnimationFrame(function() {
                $hs.focusFxLock = false;
                if (!$hs.enable) $hs.tips(false);
                else
                if (!doc.hasFocus() && $hs.player() && !$hs.isLostFocus) {
                    $hs.isLostFocus = true;
                    consoleLog('doc.focusout')
                    $hs.tips('focus is lost', -1);
                }
            });
        },
        handlerDocFocusIn: function(e) {
            let doc = this;
            if ($hs.focusFxLock) return;
            requestAnimationFrame(function() {

                if ($hs.focusFxLock) return;
                if (!$hs.enable) $hs.tips(false);
                else
                if (doc.hasFocus() && $hs.player() && $hs.isLostFocus) {
                    $hs.isLostFocus = false;
                    consoleLog('doc.focusin')
                    $hs.tips(false);

                }
            });
        },

        handlerWinMessage: async function(e) {
            let tag, ed;
            if (typeof e.data == 'object' && typeof e.data.tag == 'string') {
                tag = e.data.tag;
                ed = e.data
            } else {
                return;
            }
            let msg = null,
                success = 0;
            switch (tag) {
                case 'consoleLog':
                    var msg_str = ed.str;
                    var msg_stype = ed.stype;
                    if (msg_stype === 1) {
                        msg = (document[str_postMsgData] || {})[msg_str] || [];
                        success = 1;
                    } else if (msg_stype === 2) {
                        msg = jsonParse(msg_str);
                        if (msg && msg.d) {
                            success = 2;
                            msg = msg.d;
                        }
                    } else {
                        msg = msg_str
                    }
                    var p = (ed.passing && ed.winOrder) ? [' | from win-' + ed.winOrder] : [];
                    if (success) {
                        console.log(...msg, ...p)
                        //document[ed.data]=null;   // also delete the information
                    } else {
                        console.log('msg--', msg, ...p, ed);
                    }
                    break;

            }
        },

        isInActiveMode: function(activeElm, player) {

            if (activeElm == player) {
                return true;
            }

            let _checkingPass = false;
            let {
                layoutBox,
                wPlayer
            } = $hs.getLayoutBox(player);
            if (layoutBox && layoutBox.parentNode && layoutBox.contains(activeElm)) {
                let rpid = player.getAttribute('_h5ppid') || "NULL";
                let actionBox = layoutBox.parentNode.querySelector(`[_h5p_actionbox_="${rpid}"]`); //the box can be layoutBox
                if (actionBox && actionBox.contains(activeElm)) _checkingPass = true;
            }

            return _checkingPass
        },


        toolCheckFullScreen: function(doc) {
            if (typeof doc.fullScreen == 'boolean') return doc.fullScreen;
            if (typeof doc.webkitIsFullScreen == 'boolean') return doc.webkitIsFullScreen;
            if (typeof doc.mozFullScreen == 'boolean') return doc.mozFullScreen;
            return null;
        },

        toolFormatCT: function(u) {

            let w = Math.round(u, 0)
            let a = w % 60
            w = (w - a) / 60
            let b = w % 60
            w = (w - b) / 60
            let str = ("0" + b).substr(-2) + ":" + ("0" + a).substr(-2);
            if (w) str = w + ":" + str

            return str

        },
        toolQuickSort: (
            unsortedArray,
            comparator = (a, b) => a < b ? -1 : a > b ? 1 : 0
        ) => {

            //https://medium.com/@Charles_Stover/implementing-quicksort-in-javascript-8044a8e2bf39

            // Create a sortable array to return.
            const sortedArray = [...unsortedArray];

            // Recursively sort sub-arrays.
            const recursiveSort = (start, end) => {

                // If this sub-array is empty, it's sorted.
                if (end - start < 1) {
                    return;
                }

                const pivotValue = sortedArray[end];
                let splitIndex = start;
                for (let i = start; i < end; i++) {
                    const sort = comparator(sortedArray[i], pivotValue);

                    // This value is less than the pivot value.
                    if (sort === -1) {

                        // If the element just to the right of the split index,
                        //   isn't this element, swap them.
                        if (splitIndex !== i) {
                            const temp = sortedArray[splitIndex];
                            sortedArray[splitIndex] = sortedArray[i];
                            sortedArray[i] = temp;
                        }

                        // Move the split index to the right by one,
                        //   denoting an increase in the less-than sub-array size.
                        splitIndex++;
                    }

                    // Leave values that are greater than or equal to
                    //   the pivot value where they are.
                }

                // Move the pivot value to between the split.
                sortedArray[end] = sortedArray[splitIndex];
                sortedArray[splitIndex] = pivotValue;

                // Recursively sort the less-than and greater-than arrays.
                recursiveSort(start, splitIndex - 1);
                recursiveSort(splitIndex + 1, end);
            };

            // Sort the entire array.
            recursiveSort(0, unsortedArray.length - 1);
            return sortedArray;
        },



        /* 提示文本的字號 */
        fontSize: 16,
        enable: true,
        playerInstance: null,
        translate: {
            x: 0,
            y: 0
        },
        playbackRate: 1,
        /* 快進快退步長 */
        skipStep: 5,
        /* 獲取當前播放器的實例 */
        player: function() {
            return $hs.playerInstance || $hs.getPlayerList()[0]
        },
        /* 每個網頁可能存在的多個video播放器 */
        getPlayerList: function() {
            let list = Array.prototype.slice.call(document.querySelectorAll('video'))
            // 被封裝在 shadow dom 裡面的video
            if (_shadowDomList_) {
                _shadowDomList_.forEach(shadowRoot => {
                    list = [...list, ...shadowRoot.querySelectorAll('video')]
                })
            }
            //console.log(list)
            return list
        },
        getPlayerWrapDom: function() {
            let player = $hs.player()
            if (!player || !player.getBoundingClientRect) return
            let wrapDom = null
            let layoutBox = player.getBoundingClientRect()
            if (layoutBox.width && layoutBox.height) {
                domTool.eachParentNode(player, function(parent) {
                    if (parent === document || !parent.getBoundingClientRect) return
                    let parentBox = parent.getBoundingClientRect()
                    if (parentBox.width === layoutBox.width && parentBox.height === layoutBox.height) {
                        wrapDom = parent
                    }
                })
            }
            return wrapDom
        },
        makeFocus: function(player, evt) {
            setTimeout(function() {
                let rpid = player.getAttribute('_h5ppid');
                let actionBox = getRoot(player).querySelector(`[_h5p_actionbox_="${rpid}"]`);

                //console.log('p',rpid, player,actionBox,document.activeElement)
                if (actionBox && actionBox != document.activeElement && !actionBox.contains(document.activeElement)) {
                    consoleLog('make focus on', actionBox)
                    actionBox.focus();

                }

            }, 300)
        },

        _actionBoxSet: function(player) {

            if (!player) return null;
            let vpid = player.getAttribute('_h5ppid');
            if (!vpid) return null;

            let {
                layoutBox,
                wPlayer
            } = $hs.getLayoutBox(player)

            if (!layoutBox) return null;

            let walkRes = domTool._isActionBox_1(player, layoutBox);
            let parentCount = walkRes.length;
            let actionBox = null;
            if (parentCount - 1 >= 0 && domTool._isActionBox(player, walkRes, parentCount - 1)) {
                actionBox = walkRes[parentCount - 1].elm;
            } else if (parentCount - 2 >= 0 && domTool._isActionBox(player, walkRes, parentCount - 2)) {
                actionBox = walkRes[parentCount - 2].elm;
            } else {
                actionBox = player;
            }
            if (actionBox && actionBox.getAttribute('_h5p_actionbox_') != vpid) {
                consoleLog('D-1', actionBox);
                for (let elm_of_vpid of getRoot(player).querySelectorAll(`[_h5p_actionbox_="${vpid}"]`)) {
                    //change of parentNode
                    elm_of_vpid.removeAttribute('_h5p_actionbox_');
                    $hs.bindEventsToElm(elm_of_vpid, 'removeEventListener');
                }
                actionBox.setAttribute('_h5p_actionbox_', vpid);
                if (!actionBox.hasAttribute('tabindex')) actionBox.setAttribute('tabindex', '-1');
                $hs.bindEventsToElm(actionBox, 'addEventListener');

                let elm = player;
                while (elm && elm != actionBox) {

                    if (elm.hasAttribute('tabindex')) $hs.bindEventsToElm(elm, 'addEventListener');

                    elm = elm.parentNode
                }

            }
            return actionBox;
        },

        videoSrcFound: function(player) {

            // src loaded

            if (!player) return;
            let vpid = player.getAttribute('_h5ppid') || null;
            if (!vpid || !player.currentSrc) return;

            player._isThisPausedBefore_ = false;

            player.removeAttribute('_h5p_uid_encrypted');

            if (player._record_continuous) player._record_continuous._lastSave = -999; //first time must save

            let uid_A = location.pathname.replace(/[^\d+]/g, '') + '.' + location.search.replace(/[^\d+]/g, '');
            let _uid = location.hostname.replace('www.', '').toLowerCase() + '!' + location.pathname.toLowerCase() + 'A' + uid_A + 'W' + player.videoWidth + 'H' + player.videoHeight + 'L' + (player.duration << 0);

            digestMessage(_uid).then(function(_uid_encrypted) {

                let d = +new Date;

                let recordedTime = null;

                ;
                (function() {
                    //read the last record only;

                    let k1 = '_h5_player_play_progress_';
                    let k1n = '_play_progress_';
                    let k2 = _uid_encrypted;
                    let k3 = k1 + k2;
                    let k3n = k1n + k2;
                    let m2 = Object.keys(localStorage).filter(key => key.substr(0, k3.length) == k3); //all progress records for this video
                    let m2v = m2.map(keyName => +(keyName.split('+')[1] || '0'))
                    let m2vMax = Math.max(0, ...m2v)
                    if (!m2vMax) recordedTime = null;
                    else {
                        let _json_recordedTime = null;
                        _json_recordedTime = Store.read(k3n + '+' + m2vMax);
                        if (!_json_recordedTime) _json_recordedTime = {};
                        else _json_recordedTime = jsonParse(_json_recordedTime);
                        if (typeof _json_recordedTime == 'object') recordedTime = _json_recordedTime;
                        else recordedTime = null;
                        recordedTime = typeof recordedTime == 'object' ? recordedTime.t : recordedTime;
                        if (typeof recordedTime == 'number' && (+recordedTime >= 0 || +recordedTime <= 0)) {} else if (typeof recordedTime == 'string' && recordedTime.length > 0 && (+recordedTime >= 0 || +recordedTime <= 0)) {
                            recordedTime = +recordedTime
                        } else {
                            recordedTime = null
                        }
                    }
                    if (recordedTime !== null) {
                        player._h5player_lastrecord_ = recordedTime;
                    } else {
                        player._h5player_lastrecord_ = null;
                    }
                    if (player._h5player_lastrecord_ > 5) {
                        consoleLog('last record playing', player._h5player_lastrecord_);
                        setTimeout(function() {
                            let tmp_player = $hs.playerInstance;
                            $hs.playerInstance = player;
                            $hs.tips(`Press Shift-R to restore Last Playback: ${$hs.toolFormatCT(player._h5player_lastrecord_)}`, 5000, 4000)
                            $hs.playerInstance = tmp_player
                        }, 1000)
                    }

                })();
                // delay the recording by 5.4s => prevent ads or mis operation
                setTimeout(function() {

                    let k1 = '_h5_player_play_progress_';
                    let k1n = '_play_progress_';
                    let k2 = _uid_encrypted;
                    let k3 = k1 + k2;
                    let k3n = k1n + k2;

                    //re-read all the localStorage keys
                    let m1 = Object.keys(localStorage).filter(key => key.substr(0, k1.length) == k1); //all progress records in this site
                    let p = m1.length + 1;

                    let m2 = m1.filter(key => key.substr(0, k3.length) == k3) //all progress records for this video
                    m2.forEach(key => localStorage.removeItem(key), p--); //remove previous record for the current video

                    if (recordedTime !== null) {
                        Store.save(k3n + '+' + d, jsonStringify({
                            't': recordedTime
                        })) //prevent loss of last record
                    }

                    const _record_max_ = 48;
                    const _record_keep_ = 26;

                    if (p > _record_max_) {
                        //exisiting 48 records for one site;
                        //keep only 26 records

                        const comparator = (a, b) => (a.t < b.t ? -1 : a.t > b.t ? 1 : 0);
                        let mapM = m1.map(keyName => ({
                            keyName,
                            t: +(keyName.split('+')[1] || '0')
                        }));
                        let mapN = $hs.toolQuickSort(mapM, comparator).slice(0, -_record_keep_);

                        /* 刪除最早添加的記錄項 */
                        mapN.forEach(function(item) {
                            localStorage.removeItem(item.keyName)
                        })

                        consoleLog(`stored progress: reduced to ${_record_keep_}`)
                    }

                    player.setAttribute('_h5p_uid_encrypted', _uid_encrypted + '+' + d);

                    //try to start recording
                    if (player._record_continuous) player._record_continuous.playingWithRecording();

                }, 5400);

            })

        },
        bindKeyEvents: function(rootNode) {
            if (!rootNode._bindKeyEvents_) {
                rootNode._bindKeyEvents_ = true;
                rootNode.removeEventListener('keydown', $hs.keydownEvent, true)
                rootNode.addEventListener('keydown', $hs.keydownEvent, true)
                document._debug_rootNode_ = rootNode;
            }
        },
        fireGlobalInit: function() {

            /* 綁定鍵盤事件 */
            if ($hs.varInitCount != 1) return;

            if (!$hs.varSrcList) $hs.varSrcList = {};

            $hs.isLostFocus = null;
            consoleLog('keydown bind');
            $hs.bindKeyEvents(document);

            try {
                //iframe may not be able to control top window
                //error; just ignore with asycn
                let topDoc = window.top && window.top.document ? window.top.document : null;
                if (topDoc) {
                    topDoc.addEventListener('focusout', $hs.handlerDocFocusOut, true)
                    topDoc.addEventListener('focusin', $hs.handlerDocFocusIn, true)
                }

            } catch (e) {}

            Store.clearInvalid(_sVersion_)


        },
        onVideoTriggering: function() {


            // initialize a single video player - h5Player.playerInstance

            /**
             * 初始化播放器實例
             */
            let player = $hs.playerInstance
            if (!player) return

            let vpid = player.getAttribute('_h5ppid');

            if (!vpid) return;

            let firstTime = !!$hs.initTips()
            if (firstTime) {
                // first time to trigger this player
                if (!player.hasAttribute('playsinline')) player.setAttribute('playsinline', 'playsinline');
                if (!player.hasAttribute('x-webkit-airplay')) player.setAttribute('x-webkit-airplay', 'deny');
                if (!player.hasAttribute('preload')) player.setAttribute('preload', 'auto');
                player.style['image-rendering'] = 'crisp-edges';
                $hs.filter.reset()
                $hs.playbackRate = $hs.getPlaybackRate()
            }

        },
        getPlaybackRate: function() {
            let playbackRate = Store.read('_playback_rate_') || $hs.playbackRate
            return Number(Number(playbackRate).toFixed(1))
        },
        getLayoutBox: function(player, skipPlayer) {
            //without checkActiveBox, just a DOM for you to append tipsDom

            var layoutBox = null,
                wPlayer = null

            if (!player || !player.offsetHeight || !player.offsetWidth) {
                return {
                    layoutBox,
                    wPlayer
                };
            }

            if (!player.parentNode) {
                return {
                    layoutBox,
                    wPlayer
                };
            }

            function search_nodes() {

                wPlayer = player; // NOT NULL
                layoutBox = wPlayer.parentNode; // NOT NULL

                while (layoutBox.parentNode && layoutBox.nodeType == 1 && layoutBox.offsetHeight == 0) {
                    wPlayer = layoutBox; // NOT NULL
                    layoutBox = layoutBox.parentNode; // NOT NULL
                }
                while (layoutBox.parentNode && layoutBox.nodeType == 1 && layoutBox.offsetHeight < player.offsetHeight) {
                    wPlayer = layoutBox; // NOT NULL
                    layoutBox = layoutBox.parentNode; // NOT NULL
                }

            }

            search_nodes();

            if (layoutBox.nodeType == 11) {


                //shadowRoot without html and body
                let shadowChild, shadowElm_container, shadowElm_head, shadowElm_html;
                let rootNode = getRoot(player);
                if (rootNode.querySelectorAll('html,body').length < 2) {

                    shadowElm_container = player.ownerDocument.createElement('BODY')
                    rootNode.insertBefore(shadowElm_container, rootNode.firstChild)

                    while (shadowChild = shadowElm_container.nextSibling) shadowElm_container.appendChild(shadowChild);

                    shadowElm_head = rootNode.insertBefore(player.ownerDocument.createElement('HEAD'), shadowElm_container)

                    shadowElm_html = rootNode.insertBefore(player.ownerDocument.createElement('HTML'), shadowElm_head)

                    shadowElm_container.setAttribute('style', 'padding:0;margin:0;border:0;    box-sizing: border-box;')
                    shadowElm_html.setAttribute('style', 'padding:0;margin:0;border:0;    box-sizing: border-box;')

                    shadowElm_html.appendChild(shadowElm_head)
                    shadowElm_html.appendChild(shadowElm_container)

                }

                search_nodes();

            }

            //condition:
            //!layoutBox.parentNode || layoutBox.nodeType != 1 || layoutBox.offsetHeight > player.offsetHeight

            // layoutBox is a node contains <video> and offsetHeight>=video.offsetHeight
            // wPlayer is a HTML Element (nodeType==1)
            // you can insert the DOM element into the layoutBox

            if (layoutBox.nodeType !== 1) {
                //unexpected
                layoutBox = null;
                wPlayer = null;
            }

            return {
                layoutBox,
                wPlayer
            };

        },
        toParentContains: function(layoutBox, selector) {

            let r = layoutBox
            while (r && r.nodeType == 1 && !r.querySelector(selector)) r = r.parentNode;
            r = r || layoutBox;
            if (r && r.nodeType == 1) {
                return r;
            }

            return null;
        },
        getPlayerCTBox: function(elm1, elm2) {

            let box1 = elm1;
            let box2 = elm2;

            while (box1 && box2) {
                if (box1.contains(box2) || box2.contains(box1)) {
                    break;
                }
                box1 = box1.parentNode;
                box2 = box2.parentNode;
            }

            let layoutBox = null;

            box1 = (box1 && box1.contains(elm2)) ? box1 : null;
            box2 = (box2 && box2.contains(elm1)) ? box2 : null;

            if (box1 && box2) layoutBox = box1.contains(box2) ? box2 : box1;
            else layoutBox = box1 || box2 || null;

            return layoutBox

        },
        change_layoutBox: function(tipsDom) {
            let player = $hs.player()
            let {
                layoutBox,
                wPlayer
            } = $hs.getLayoutBox(player)

            if (wPlayer && layoutBox && wPlayer.parentNode == layoutBox) {} else {
                //unexpected
                return;
            }
            //console.log(layoutBox,wPlayer)
            //console.log('cp',layoutBox)
            if (layoutBox && layoutBox.nodeType == 1) {
                if (!tipsDom.parentNode || tipsDom.parentNode !== layoutBox) {

                    consoleLog('changed_layoutBox')
                    layoutBox.insertBefore(tipsDom, wPlayer);

                    if (tipsDom._vpr && tipsDom._vpr_obj && tipsDom._vpr_pn) {
                        let rm = ResizeODM.find(tipsDom._vpr_pn)
                        if (rm) {
                            rm.unlisten(tipsDom._vpr)
                            tipsDom._vpr_pn = tipsDom.parentNode
                            rm.relativeParent(layoutBox, wPlayer)
                            rm.listen(tipsDom._vpr)
                            rm.odm.id = tipsDom._vpr_obj.id
                            tipsDom._vpr_obj = rm.odm;
                        } else {
                            tipsDom._vpr_pn = tipsDom.parentNode
                        }

                    }

                }
            }
        },
        callFullScreenBtn0: function() {
            return this.setWebFullScreen();
        },
        getPlayerTips: function() {
            let player = $hs.player()
            let tcn = player.getAttribute('_h5player_tips') || ($hs.tipsClassName);
            return getRoot(player).querySelector('#' + tcn)
        },
        setWebFullScreen: function() {
            let player = $hs.player()
            let tipsDom = $hs.getPlayerTips();

            let {
                layoutBox,
                wPlayer
            } = $hs.getLayoutBox(player);

            let rpid = player.getAttribute('_h5ppid') || "NULL";
            let gPlayer = null;
            if (layoutBox && layoutBox.parentNode) {
                gPlayer = layoutBox.parentNode.querySelector(`[_h5p_actionbox_="${rpid}"]`); //the box can be layoutBox
            }

            if (gPlayer) {
                consoleLog('gPlayer', gPlayer)

                let chFull = $hs.toolCheckFullScreen(gPlayer.ownerDocument);

                if (chFull === true) {
                    consoleLog('chFull', 'true')
                    player.ownerDocument.exitFullscreen();
                } else {
                    consoleLog('chFull', 'false')
                    consoleLog('DOM fullscreen')
                    try {
                        gPlayer.requestFullscreen() //known bugs : TypeError: fullscreen error
                    } catch (e) {
                        consoleLogF('fullscreen error', e)
                    }
                }
            } else {
                consoleLog('the container for DOM fullscreen cannot be found')
            }

        },
        callFullScreenBtn: function() {
            //return this.setWebFullScreen();
            //return this.callFullScreenBtn7();
            //return this.callFullScreenBtn8();
            let player = $hs.player()
            if (!player || !player.ownerDocument) return this.callFullScreenBtn0();
            let tcn = player.getAttribute('_h5player_tips') || ($hs.tipsClassName);
            consoleLog('tcn', tcn)
            let tipsDom = getRoot(player).querySelector('#' + tcn)
            if (!tipsDom) return this.callFullScreenBtn0();
            let chFull = $hs.toolCheckFullScreen(player.ownerDocument);
            if (chFull === null) return (console.log('chFull', 'null'), this.callFullScreenBtn0());
            if (chFull === true) {
                consoleLog('chFull', 'true')
                player.ownerDocument.exitFullscreen();
                //  let el = [t.player_focus_input]; if (el) {el = el[0].click()}
            } else {
                consoleLog('chFull', 'false')

                const layoutBox = $hs.getPlayerCTBox(player, tipsDom);

                let pPlayer = player
                let qPlayer = layoutBox
                let clicked = false;
                let gs1;
                let _gs1_tmp = {};
                let _gs1_filter = function(elq) {
                    return _gs1_tmp.elm == elq.elm ? false : _gs1_tmp.elm.contains(elq.elm)
                };
                let _gs1_contains = function(elp) {
                    if (elp.childElementCount === 0) return false;
                    _gs1_tmp.elm = elp.elm;
                    elp.isContained = gs1.filter(_gs1_filter).length > 0;
                }
                // try to find the fullscreen button
                for (let q3 = 0; q3 < 4; q3++) { //max 4 layers
                    if (!qPlayer) break;
                    let fs1 = qPlayer.querySelectorAll('[class*="fullscreen"]')
                    if (fs1.length > 0) {
                        // -- indiv-elm --
                        gs1 = Array.prototype.map.call(fs1, function(elm) {
                            return {
                                elm: elm,
                                isVisible: null,
                                hasClickListeners: null,
                                childElementCount: null,
                                isContained: null
                            }
                        });
                        if (('_listeners' in document)) {
                            gs1.forEach(function(elp) {
                                let elm = elp.elm;
                                elp.hasClickListeners = elm._listeners && elm._listeners.click && elm._listeners.click.funcCount > 0
                            })
                        }
                        if ('childElementCount' in player) {
                            gs1.forEach(function(elp) {
                                let elm = elp.elm;
                                elp.childElementCount = elm.childElementCount;
                            })
                        }
                        if ('offsetParent' in player) {
                            gs1.forEach(function(elp) {
                                let elm = elp.elm;
                                elp.isVisible = !!elm.offsetParent; //works with parent/self display none; not work with visiblity hidden / opacity0
                            })
                        }
                        gs1 = gs1.filter(function(elp) {
                            return elp.hasClickListeners
                        })
                        //console.log('gs1',gs1)
                        // -- inter-elm --
                        if ('contains' in player) {
                            gs1.forEach(_gs1_contains)
                        }
                        let gs2 = gs1.filter(function(elp) {
                            return !elp.isContained && elp.isVisible
                        })
                        consoleLog('fullscreen btn', gs2)
                        //console.log('gs2',gs2)
                        if (gs2.length >= 1) {
                            let gs2_a = gs2.map(elp => elp.elm.className.length)
                            let gs2_b = Math.min.apply(Math, gs2_a)
                            let gs2_c = gs2_a.lastIndexOf(gs2_b)
                            // pick the last btn if there is more than one
                            gs2[gs2_c].elm.click();
                            clicked = true;
                            consoleLog('original fullscreen')
                            break;
                        }
                    }
                    pPlayer = qPlayer
                    qPlayer = qPlayer.parentNode
                }
                if (!clicked) {
                    //cannot find -> default
                    consoleLog('try HTML5 fullscreen')
                    this.setWebFullScreen();
                }
            }
        },
        /* 設置播放速度 */
        setPlaybackRate: function(num, flagTips) {
            let player = $hs.player()
            let curPlaybackRate
            if (num) {
                num = +num
                if (num > 0) { // also checking the type of variable
                    curPlaybackRate = num < 0.1 ? 0.1 : +(num.toFixed(1))
                } else {
                    console.error('h5player: 播放速度轉換出錯')
                    return false
                }
            } else {
                curPlaybackRate = $hs.getPlaybackRate()
            }
            /* 記錄播放速度的信息 */

            let changed = curPlaybackRate !== player.playbackRate;

            if (curPlaybackRate !== player.playbackRate) {

                Store.save('_playback_rate_', curPlaybackRate + '')
                $hs.playbackRate = curPlaybackRate
                player.playbackRate = curPlaybackRate
                /* 本身處於1被播放速度的時候不再提示 */
                //if (!num && curPlaybackRate === 1) return;

            }

            flagTips = (flagTips < 0) ? false : (flagTips > 0) ? true : changed;
            if (flagTips) $hs.tips('Playback speed: ' + player.playbackRate + 'x')
        },
        tuneCurrentTime: function(amount, flagTips) {
            let _amount = +(+amount).toFixed(1);
            let player = $hs.player();
            if (_amount >= 0 || _amount < 0) {} else {
                return;
            }

            let newCurrentTime = player.currentTime + _amount;
            if (newCurrentTime < 0) newCurrentTime = 0;
            if (newCurrentTime > player.duration) newCurrentTime = player.duration;

            let changed = newCurrentTime != player.currentTime && newCurrentTime >= 0 && newCurrentTime <= player.duration;

            if (changed) {
                //player.currentTime = newCurrentTime;
                player.pause();
                let t_ch = (Math.random() / 5 + .75);
                player.currentTime = newCurrentTime * t_ch + player.currentTime * (1.0 - t_ch);
                setTimeout(() => {
                    player.play();
                    player.currentTime = newCurrentTime;
                }, 33);
                flagTips = (flagTips < 0) ? false : (flagTips > 0) ? true : changed;
                $hs.tips(false);
                if (flagTips) {
                    if (_amount > 0) $hs.tips(_amount + ' Sec. Forward', undefined, 3000);
                    else $hs.tips(-_amount + ' Sec. Backward', undefined, 3000)
                }
            }

        },
        tuneVolume: function(amount) {
            let _amount = +(+amount).toFixed(2);

            let player = $hs.player()

            let newVol = player.volume + _amount;
            if (newVol < 0) newVol = 0;
            if (newVol > 1) newVol = 1;
            let chVol = player.volume !== newVol && newVol >= 0 && newVol <= 1;

            if (chVol) {

                if (_amount > 0) {
                    if (player.volume < 1) {
                        player.volume = newVol // positive
                    }
                } else {
                    if (player.volume > 0) {
                        player.volume = newVol // negative
                    }
                }
                $hs.tips(false);
                $hs.tips('Volume: ' + dround(player.volume * 100) + '%', undefined)
            }
        },
        switchPlayStatus: function() {
            let player = $hs.player()
            if (player.paused) {
                player.play()
                if (player._isThisPausedBefore_) {
                    $hs.tips(false);
                    $hs.tips('Playback resumed', undefined, 2500)
                }
            } else {
                player.pause()
                $hs.tips(false);
                $hs.tips('Playback paused', undefined, 2500)
            }
        },
        tipsClassName: 'html_player_enhance_tips',
        tips: function(str, duration, order) {
            let player = $hs.player()
            if (!player) {
                consoleLog('h5Player Tips:', str)
                return true
            }

            if (!player.getAttribute('_h5player_tips')) $hs.initTips();

            let tipsSelector = '#' + (player.getAttribute('_h5player_tips') || $hs.tipsClassName) //if this attribute still doesnt exist, set it to the base cls name
            let tipsDom = getRoot(player).querySelector(tipsSelector)
            if (!tipsDom) {
                consoleLog('init h5player tips dom error...')
                return false
            }
            $hs.change_layoutBox(tipsDom);

            if (str === false) {
                tipsDom.innerText = '';
                tipsDom.setAttribute('_potTips_', '0')
            } else {
                order = order || 1000
                tipsDom.tipsOrder = tipsDom.tipsOrder || 0;

                let shallDisplay = true
                if (order < tipsDom.tipsOrder && getComputedStyle(tipsDom).opacity > 0) shallDisplay = false

                if (shallDisplay) {

                    tipsDom._layoutBoxObj = $hs.getLayoutBox(player)
                    tipsDom._env_changed = 0;

                    if (!_endlessloop) {
                        _endlessloop = new EndlessLoop();
                    }
                    tipsDom._layoutBoxObjSize = null;
                    if (!$hs.__updateTips) {

                        $hs.__updateTips = _endlessloop.append(function(opts) {

                            let tipsDoms = $hs._cached_tipsDoms;

                            if (!tipsDoms || !tipsDoms.length) return;
                            tipsDoms.forEach((tipsDom) => {

                                if (!tipsDom._layoutBoxObj) return;
                                let {
                                    layoutBox,
                                    wPlayer
                                } = tipsDom._layoutBoxObj
                                if (layoutBox == null || wPlayer == null) return;
                                let p = [~~layoutBox.offsetWidth, ~~layoutBox.offsetHeight, ~~wPlayer.offsetWidth, ~~wPlayer.offsetHeight];

                                if (tipsDom._layoutBoxObjSize) {
                                    let changed = false;
                                    for (let i = 0; i < 4; i++) {
                                        if (tipsDom._layoutBoxObjSize[i] != p[i]) {
                                            changed = true;
                                            break;
                                        }
                                    }
                                    if (!changed) return;
                                    tipsDom._env_changed = (tipsDom._env_changed || 0) + 1;
                                    consoleLog('tipsDom Env changed', tipsDom.id)
                                }

                                tipsDom._layoutBoxObjSize = p;

                                if (!tipsDom.id) return;
                                let player = layoutBox.querySelector(`[_h5player_tips="${tipsDom.id}"]`)
                                if (!player) return;

                                $hs.fixNonBoxingVideoTipsPosition(tipsDom, player)

                            })

                        })

                        $hs.__updateTips.loopingStart();
                    }

                    if (duration === undefined) duration = 2000
                    tipsDom.innerText = str

                    tipsDom.setAttribute('_potTips_', '2')

                    $hs.fixNonBoxingVideoTipsPosition(tipsDom, player);

                    if (duration > 0) {

                        requestAnimationFrame(function() {

                            tipsDom.setAttribute('_potTips_', '1')

                        })

                    } else {
                        order = -1;
                    }

                    tipsDom.tipsOrder = order

                }

            }

            $hs._cached_tipsDoms = document.querySelectorAll('[_potTips_="1"],[_potTips_="2"]'); //48673
        },
        initTips: function() {
            /* 設置提示DOM的樣式 */
            let player = $hs.player()
            let shadowRoot = getRoot(player);
            let doc = player.ownerDocument;
            //console.log((document.documentElement.qq=player),shadowRoot,'xax')
            let parentNode = player.parentNode
            let tcn = player.getAttribute('_h5player_tips') || ($hs.tipsClassName + '_' + (+new Date));
            player.setAttribute('_h5player_tips', tcn)
            if (shadowRoot.querySelector('#' + tcn)) return false;

            if (!shadowRoot.__notFirstTips__) {
                shadowRoot.__notFirstTips__ = true;

                domTool.addStyle(`
[_potTips_="1"]{
animation: 2s linear 0s normal forwards 1 delayHide;
}
[_potTips_="0"]{
opacity:0; transform:translate(-9999px);
}
[_potTips_="2"]{
opacity:.95; transform: translate(0,0);
}

@keyframes delayHide{
0%, 99% { opacity:0.95; transform: translate(0,0); }
100% { opacity:0; transform:translate(-9999px); }
}
` + `
[_potTips_]{
font-weight: bold !important;
position: absolute !important;
z-index: 999 !important;
font-size: ${$hs.fontSize || 16}px !important;
padding: 0px !important;
border:none !important;
background: rgba(0,0,0,0) !important;
color:#738CE6 !important;
text-shadow: -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000, 1px 1px 0 #000;
top: 50%;
left: 50%;
max-width:500px;max-height:50px;
border-radius:3px;
font-family: 'microsoft yahei', Verdana, Geneva, sans-serif;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-drag: none;
-khtml-user-select: none;
-moz-user-select: none;
-moz-user-select: -moz-none;
-ms-user-select: none;
pointer-events: none;
user-select: none;
}
`.replace(/\r\n/g, ''), (shadowRoot.querySelector('head') || shadowRoot.querySelector('html') || document.documentElement))

            }

            let tipsDom = doc.createElement('div')

            var transitionEvent = whichTransitionEvent('animation');

            tipsDom.addEventListener(transitionEvent, function(e) {
                if (this.getAttribute('_potTips_') == '1') {
                    this.setAttribute('_potTips_', '0')
                    $hs._cached_tipsDoms = shadowRoot.querySelectorAll('[_potTips_="1"],[_potTips_="2"]');
                }
            })

            tipsDom.id = tcn;
            tipsDom.setAttribute('unselectable', 'on');
            tipsDom.setAttribute('_potTips_', '0');
            $hs.change_layoutBox(tipsDom);

            tipsDom._vpr = function() {

                let resizeDOM = this;
                if (!resizeDOM) return;

                console.log('The container of the video is resized', resizeDOM.odm.id);

            }
            tipsDom._vpr_pn = tipsDom.parentNode

            tipsDom._vpr = null
            tipsDom._vpr_pn = null

            if (tipsDom._vpr && tipsDom._vpr_pn) {

                let rm = new ResizeODM();
                let tmp_elm = null;
                let {
                    layoutBox,
                    wPlayer
                } = $hs.getLayoutBox(player, false);
                if (layoutBox && wPlayer) tmp_elm = layoutBox.parentNode != tipsDom._vpr_pn ? null : layoutBox;

                rm.relativeParent(tipsDom._vpr_pn, tmp_elm)
                rm.listen(tipsDom._vpr)

                if (rm.odm) {
                    rm.odm.id = tcn + 'obj'
                    //console.log(rm.odm,rm.odm.id)
                    tipsDom._vpr_obj = rm.odm;
                }

            }


            return true;
        },

        responsiveSizing: function(container, elm) {

            let gcssP = getComputedStyle(container)

            let gcssE = getComputedStyle(elm)

            //console.log(gcssE.left,gcssP.width)
            let elmBound = {
                left: parseFloat(gcssE.left) / parseFloat(gcssP.width)

                    ,
                width: parseFloat(gcssE.width) / parseFloat(gcssP.width)

                    ,
                top: parseFloat(gcssE.top) / parseFloat(gcssP.height)

                    ,
                height: parseFloat(gcssE.height) / parseFloat(gcssP.height)
            }

            let elm00 = [elmBound.left, elmBound.top];
            let elm01 = [elmBound.left + elmBound.width, elmBound.top];
            let elm10 = [elmBound.left, elmBound.top + elmBound.height];
            let elm11 = [elmBound.left + elmBound.width, elmBound.top + elmBound.height];

            return {
                elm00,
                elm01,
                elm10,
                elm11,
                plw: elmBound.width,
                plh: elmBound.height
            }

        },

        fixNonBoxingVideoTipsPosition: function(tipsDom, player) {

            if (!tipsDom || !player) return;

            let ct = $hs.getPlayerCTBox(tipsDom, player)

            if (!ct) return;

            //console.log('fixNonBoxingVideoTipsPosition')

            //relative

            let {
                elm00,
                elm01,
                elm10,
                elm11,
                plw,
                plh
            } = $hs.responsiveSizing(ct, player)

            if (isNaN(elm00[0]) || isNaN(elm00[1])) {

                [tipsDom.style.left, tipsDom.style.top] = [player.style.left, player.style.top];
                //eg auto
            } else {

                let rlm00 = elm00.map(t => (t * 100).toFixed(2) + '%');
                //console.log(rlm00);

                [tipsDom.style.left, tipsDom.style.top] = rlm00;

            }

            // absolute

            let _offset = {
                left: 10,
                top: 15
            };

            let customOffset = {
                left: _offset.left,
                top: _offset.top
            };
            let p = tipsDom.getBoundingClientRect();
            let q = player.getBoundingClientRect();
            let currentPos = [p.left, p.top];

            //new FTC(plw).mul(0.5)
            //new FTC(plh).mul(0.5)

            let targetPos = [q.left + player.offsetWidth * 0 + customOffset.left, q.top + player.offsetHeight * 0 + customOffset.top];

            let mL = +tipsDom.style.marginLeft.replace('px', '') || 0;
            if (isNaN(mL)) mL = 0;
            let mT = +tipsDom.style.marginTop.replace('px', '') || 0;
            if (isNaN(mT)) mT = 0;

            let z1 = -(currentPos[0] - targetPos[0]);
            let z2 = -(currentPos[1] - targetPos[1]);

            if (z1 || z2) {

                //console.log('A01-currentPos',...currentPos);
                //console.log('A02-targetPos',...targetPos);
                let y1 = z1 + mL;
                let y2 = z2 + mT;

                tipsDom.style.marginLeft = y1 + 'px';
                tipsDom.style.marginTop = y2 + 'px';

                // let z=tipsDom.getBoundingClientRect();
                //let zcurrentPos=[(z.left+z.right)/2,(z.bottom+z.top)/2];
                //console.log('A03-currentPos',...zcurrentPos);

            }
        },

        rotate: 0,
        fps: 30,
        /* 濾鏡效果 */
        filter: {
            key: {},
            view_units: {
                'hue-rotate': 'deg',
                'blur': 'px'
            },
            setup: function(options) {

                var ums = GM_getValue("unsharpen_mask")
                if (!ums) ums = ""

                let view = ''
                let playerElm = $hs.player();
                if (!playerElm) return;
                for (let view_key in this.key) {
                    let view_unit = this.view_units[view_key] || ''
                    view += view_key + '(' + (+this.key[view_key] || 0).toFixed(3) + view_unit + ') '
                    this.key[view_key] = Number(+this.key[view_key] || 0)
                }
                if (ums) view += 'url("#_h5p_' + ums + '")';
                if (options && options.grey) view += ' url("#grey1")';
                playerElm.style.filter = view; //performance in firefox is bad
            },
            reset: function() {
                this.key['brightness'] = 1
                this.key['contrast'] = 1
                this.key['saturate'] = 1
                this.key['hue-rotate'] = 0
                this.key['blur'] = 0
                this.setup()
            }
        },
        //  _isFoucs: false,
        keyMap: _keyMap(["1", "2", "3", "4", "c", "d", "e", "f", "i", "j", "k", "n", "m", "o", "p", "q", "r", "s", "t", "u", "w", "x", "y", "z"], {
            'enter': 13,
            'shift': 16,
            'ctrl': 17,
            'alt': 18,
            'esc': 27,
            'space': 32,
            'LEFT': 37,
            'UP': 38,
            'RIGHT': 39,
            'DOWN': 40,
            'pad1': 97,
            'pad2': 98,
            'pad3': 99,
            'pad4': 100,
            '\\': 220,
        }),
        zoom_keys: ['x', 'c', 'z', 'arrowright', 'arrowleft', 'arrowup', 'arrowdown'],
        /* 播放器事件響應器 */
        playerTrigger: function(player, event) {
            if (!player || !event) return
            let keyCode = lowerKeyCode(event.keyCode)
            if (event.code == "Space" && keyCode > 128) keyCode = 32;
            let keyAsm = (event.shiftKey ? SHIFT : 0) | (event.ctrlKey ? CTRL : 0) | (event.altKey ? ALT : 0);
            //shift + key
            if (keyAsm == SHIFT) {
                let key = event.key.toLowerCase()
                // 網頁FULLSCREEN
                if (key === 'enter') {
                    $hs.callFullScreenBtn()
                    return TERMINATE
                } else if (key == 'f') {
                    //change unsharpen filter

                    var resList = ["unsharpen3_05", "unsharpen3_10", "unsharpen5_05", "unsharpen5_10", "unsharpen9_05", "unsharpen9_10"]
                    var res = (prompt("Enter the unsharpen mask\n(" + resList.map(x => '"' + x + '"').join(', ') + ")", "unsharpen9_05") || "").toLowerCase();
                    if (resList.indexOf(res) < 0) res = ""
                    GM_setValue("unsharpen_mask", res)
                    document.querySelectorAll('video[_h5p_uid_encrypted]').forEach(el => {
                        if (el.style.filter == "" || el.style.filter) el.style.filter = el.style.filter.replace(/\s*url\(\"#_h5p_unsharpen[\d\_]+\"\)/, '') + (res.length > 0 ? ' url("#_h5p_' + res + '")' : '');
                    })
                    return TERMINATE

                }
                // 進入或退出畫中畫模式
                else if (key === 'p') {
                    $hs.pictureInPicture(player)

                    return TERMINATE
                } else if (key == 'r') {
                    if (player._h5player_lastrecord_ !== null && (player._h5player_lastrecord_ >= 0 || player._h5player_lastrecord_ <= 0)) {
                        $hs.setPlayProgress(player, player._h5player_lastrecord_)

                        return TERMINATE
                    }

                } else if (key === 'o') {
                    var _debug_h5p_logging_ch = false;
                    try {
                        window.localStorage.setItem('_h5_player_sLogging_', 1 - window.localStorage.getItem('_h5_player_sLogging_'))
                        _debug_h5p_logging_ = +window.localStorage.getItem('_h5_player_sLogging_') > 0;
                        _debug_h5p_logging_ch = true;
                    } catch (e) {

                    }
                    consoleLogF('_debug_h5p_logging_', !!_debug_h5p_logging_, 'changed', _debug_h5p_logging_ch)

                    if (_debug_h5p_logging_ch) {

                        return TERMINATE
                    }
                } else if (key == 't') {
                    if (/^blob/i.test(player.currentSrc)) {
                        alert(`The current video is ${player.currentSrc}\nSorry, it cannot be opened in PotPlayer.`);
                    } else {
                        var confirm_res = confirm(`The current video is ${player.currentSrc}\nDo you want to open it in PotPlayer?`);
                        if (confirm_res) window.open('potplayer://' + player.currentSrc, '_blank');
                    }
                    return TERMINATE
                }
                // 視頻畫面縮放相關事件

                let videoScale = (+player._videoScale) || 0;
                let key_controlled = true;
                switch (key) {
                    // shift+X：視頻縮小 -0.1
                    case 'x':
                        videoScale -= 0.1
                        break
                        // shift+C：視頻放大 +0.1
                    case 'c':
                        videoScale += 0.1
                        break
                        // shift+Z：視頻恢復正常大小
                    case 'z':
                        videoScale = 1
                        $hs.translate = {
                            x: 0,
                            y: 0
                        }
                        break
                    case 'arrowright':
                        $hs.translate.x += 10
                        break
                    case 'arrowleft':
                        $hs.translate.x -= 10
                        break
                    case 'arrowup':
                        $hs.translate.y -= 10
                        break
                    case 'arrowdown':
                        $hs.translate.y += 10
                        break
                    default:
                        key_controlled = false;

                }
                if (key_controlled) {

                    videoScale = $hs.scale = +videoScale.toFixed(1);
                    player.style.transform = `scale(${videoScale}) translate(${$hs.translate.x}px, ${$hs.translate.y}px)`
                    let tipsMsg = `視頻縮放率：${videoScale * 100}%`
                    if ($hs.translate.x) {
                        tipsMsg += `，水平位移：${$hs.translate.x}px`
                    }
                    if ($hs.translate.y) {
                        tipsMsg += `，垂直位移：${$hs.translate.y}px`
                    }
                    $hs.tips(false);
                    $hs.tips(tipsMsg)

                    return TERMINATE
                }

            }
            // 防止其它無關組合鍵衝突
            if (!keyAsm) {
                let kControl = null
                let newPBR, oldPBR;
                switch (keyCode) {
                    // 方向鍵右→：快進3秒
                    case 39:
                        $hs.tuneCurrentTime($hs.skipStep)
                        return TERMINATE
                        break;
                        // 方向鍵左←：後退3秒
                    case 37:
                        $hs.tuneCurrentTime(-$hs.skipStep)
                        return TERMINATE
                        break;
                        // 方向鍵上↑：音量升高 1%
                    case 38:
                        if ((player.muted && player.volume === 0) && player._volume > 0) {

                            player.muted = false;
                            player.volume = player._volume;
                        } else if (player.muted && (player.volume > 0 || !player._volume)) {
                            player.muted = false;
                        }
                        $hs.tuneVolume(0.01)
                        return TERMINATE
                        break;
                        // 方向鍵下↓：音量降低 1%
                    case 40:

                        if ((player.muted && player.volume === 0) && player._volume > 0) {

                            player.muted = false;
                            player.volume = player._volume;
                        } else if (player.muted && (player.volume > 0 || !player._volume)) {
                            player.muted = false;
                        }
                        $hs.tuneVolume(-0.01)
                        return TERMINATE
                        break;
                        // 空格鍵：暫停/播放
                    case $hs.keyMap.space:
                        //var _p_paused= player.paused;
                        /*$hs.switchPlayStatus()
                        if(!_p_paused===player.paused){
                            if(!player.paused && player._isThisPausedBefore_){
                                $hs.tips(false);
                                $hs.tips('Playback resumed', undefined, 2500);

                            }else if(player.paused){
                                $hs.tips(false);
                                $hs.tips('Playback paused', undefined, 2500);
                            }
                        }
                        return TERMINATE
                        */
                        break;
                        // 按鍵X：減速播放 -0.1
                    case $hs.keyMap.x:
                        if (player.playbackRate > 0) {
                            $hs.tips(false);
                            $hs.setPlaybackRate(player.playbackRate - 0.1)
                            return TERMINATE
                        }
                        break;
                        // 按鍵C：加速播放 +0.1
                    case $hs.keyMap.c:
                        if (player.playbackRate < 16) {
                            $hs.tips(false);
                            $hs.setPlaybackRate(player.playbackRate + 0.1)
                            return TERMINATE
                        }

                        break;
                        // 按鍵Z：正常速度播放
                    case $hs.keyMap.z:
                        $hs.tips(false);
                        oldPBR = player.playbackRate;
                        if (oldPBR != 1.0) {
                            player._playbackRate_z = oldPBR;
                            newPBR = 1.0;
                        } else if (player._playbackRate_z != 1.0) {
                            newPBR = player._playbackRate_z || 1.0;
                            player._playbackRate_z = 1.0;
                        } else {
                            newPBR = 1.0
                            player._playbackRate_z = 1.0;
                        }
                        $hs.setPlaybackRate(newPBR, 1)
                        return TERMINATE
                        break;
                        // 按鍵F：下一幀
                    case $hs.keyMap.f:
                        if (window.location.hostname === 'www.netflix.com') return /* netflix 的F鍵是FULLSCREEN的意思 */
                        $hs.tips(false);
                        if (!player.paused) player.pause()
                        player.currentTime += +(1 / $hs.fps)
                        $hs.tips('Jump to: Next frame')
                        return TERMINATE
                        break;
                        // 按鍵D：上一幀
                    case $hs.keyMap.d:
                        $hs.tips(false);
                        if (!player.paused) player.pause()
                        player.currentTime -= +(1 / $hs.fps)
                        $hs.tips('Jump to: Previous frame')
                        return TERMINATE
                        break;
                        // 按鍵E：亮度增加%
                    case $hs.keyMap.e:
                        $hs.tips(false);
                        kControl = 'brightness'
                        $hs.filter.key[kControl] += 0.1
                        $hs.filter.key[kControl] = $hs.filter.key[kControl].toFixed(2)
                        $hs.filter.setup()
                        $hs.tips('Brightness: ' + dround($hs.filter.key[kControl] * 100) + '%')
                        return TERMINATE
                        break;
                        // 按鍵W：亮度減少%
                    case $hs.keyMap.w:
                        $hs.tips(false);
                        kControl = 'brightness'
                        if ($hs.filter.key[kControl] > 0) {
                            $hs.filter.key[kControl] -= 0.1
                            $hs.filter.key[kControl] = $hs.filter.key[kControl].toFixed(2)
                            $hs.filter.setup()
                        }
                        $hs.tips('Brightness: ' + dround($hs.filter.key[kControl] * 100) + '%')
                        return TERMINATE
                        break;
                        // 按鍵T：對比度增加%
                    case $hs.keyMap.t:
                        $hs.tips(false);
                        kControl = 'contrast'
                        $hs.filter.key[kControl] += 0.1
                        $hs.filter.key[kControl] = $hs.filter.key[kControl].toFixed(2)
                        $hs.filter.setup()
                        $hs.tips('Contrast: ' + dround($hs.filter.key[kControl] * 100) + '%')
                        return TERMINATE
                        break;
                        // 按鍵R：對比度減少%
                    case $hs.keyMap.r:
                        $hs.tips(false);
                        kControl = 'contrast'
                        if ($hs.filter.key[kControl] > 0) {
                            $hs.filter.key[kControl] -= 0.1
                            $hs.filter.key[kControl] = $hs.filter.key[kControl].toFixed(2)
                            $hs.filter.setup()
                        }
                        $hs.tips('Contrast: ' + dround($hs.filter.key[kControl] * 100) + '%')
                        return TERMINATE
                        break;
                        // 按鍵U：飽和度增加%
                    case $hs.keyMap.u:
                        $hs.tips(false);
                        kControl = 'saturate'
                        $hs.filter.key[kControl] += 0.1
                        $hs.filter.key[kControl] = $hs.filter.key[kControl].toFixed(2)
                        $hs.filter.setup()
                        $hs.tips('Saturate: ' + dround($hs.filter.key[kControl] * 100) + '%')
                        return TERMINATE
                        break;
                        // 按鍵Y：飽和度減少%
                    case $hs.keyMap.y:
                        $hs.tips(false);
                        kControl = 'saturate'
                        if ($hs.filter.key[kControl] > 0) {
                            $hs.filter.key[kControl] -= 0.1
                            $hs.filter.key[kControl] = $hs.filter.key[kControl].toFixed(2)
                            $hs.filter.setup()
                        }
                        $hs.tips('Saturate: ' + dround($hs.filter.key[kControl] * 100) + '%')
                        return TERMINATE
                        break;
                        // 按鍵O：色相增加 1 度
                    case $hs.keyMap.o:
                        $hs.tips(false);
                        kControl = 'hue-rotate'
                        $hs.filter.key['hue-rotate'] += 1
                        $hs.filter.setup()
                        $hs.tips('Hue: ' + $hs.filter.key[kControl] + ' deg')
                        return TERMINATE
                        break;
                        // 按鍵I：色相減少 1 度
                    case $hs.keyMap.i:
                        $hs.tips(false);
                        kControl = 'hue-rotate'
                        $hs.filter.key['hue-rotate'] -= 1
                        $hs.filter.setup()
                        $hs.tips('Hue: ' + $hs.filter.key[kControl] + ' deg')
                        return TERMINATE
                        break;
                        // 按鍵K：模糊增加 0.1 px
                    case $hs.keyMap.k:
                        $hs.tips(false);
                        kControl = 'blur'
                        $hs.filter.key[kControl] += 0.1
                        $hs.filter.key[kControl] = (+$hs.filter.key[kControl] || 0).toFixed(1)
                        $hs.filter.setup()
                        $hs.tips('Blur: ' + $hs.filter.key[kControl] + ' px')
                        return TERMINATE
                        break;
                        // 按鍵J：模糊減少 0.1 px
                    case $hs.keyMap.j:
                        $hs.tips(false);
                        kControl = 'blur'
                        if ($hs.filter.key[kControl] > 0) {
                            $hs.filter.key[kControl] -= 0.1
                            $hs.filter.key[kControl] = (+$hs.filter.key[kControl] || 0).toFixed(1)
                            $hs.filter.setup()
                        }
                        $hs.tips('Blur: ' + $hs.filter.key[kControl] + ' px')
                        return TERMINATE
                        break;
                        // 按鍵Q：圖像復位
                    case $hs.keyMap.q:
                        $hs.tips(false);
                        $hs.filter.reset()
                        $hs.tips('Video Filter Reset')
                        return TERMINATE
                        break;
                        // 按鍵S：畫面旋轉 90 度
                    case $hs.keyMap.s:
                        $hs.tips(false);
                        $hs.rotate += 90
                        if ($hs.rotate % 360 === 0) $hs.rotate = 0;
                        player.style.transform = 'rotate(' + $hs.rotate + 'deg)'
                        $hs.tips('Rotation：' + $hs.rotate + ' deg')
                        return TERMINATE
                        break;
                        // 按鍵迴車，進入FULLSCREEN
                    case $hs.keyMap.enter:
                        //t.callFullScreenBtn();
                        break;
                    case $hs.keyMap.n:
                        $hs.pictureInPicture(player);
                        return TERMINATE
                        break;
                    case $hs.keyMap.m:
                        //console.log('m!', player.volume,player._volume)

                        if (player.volume >= 0) {

                            if (!player.volume || player.muted) {

                                var newVol = player.volume || player._volume || 0.5;
                                if (player.volume !== newVol) {
                                    player.volume = newVol;
                                }
                                player.muted = false;
                                $hs.tips(false);
                                $hs.tips('Mute: Off', undefined);

                            } else {

                                player._volume = player.volume;
                                player._volume_p = player.volume;
                                //player.volume = 0;
                                player.muted = true;
                                $hs.tips(false);
                                $hs.tips('Mute: On', undefined);

                            }

                        }

                        return TERMINATE
                        break;
                    default:
                        // 按1-4設置播放速度 49-52;97-100
                        if ((keyCode >= 49 && keyCode <= 52) || (keyCode >= 97 && keyCode <= 100)) {
                            $hs.tips(false);
                            $hs.setPlaybackRate(Number(event.key), 1)
                            return TERMINATE
                        }
                }

            }
        },

        handlerPlayerMouseMove: function(e) {
            let player = $hs.player();
            let rootNode = getRoot(player);

            if (rootNode.pointerLockElement != player) {
                player.removeEventListener('mousemove', $hs.handlerPlayerMouseMove)
                return;
            }

            var movementX = e.movementX || e.mozMovementX || e.webkitMovementX || 0,
                movementY = e.movementY || e.mozMovementY || e.webkitMovementY || 0;

            player.__xyOffset.x += movementX
            player.__xyOffset.y += movementY
            var ld = Math.sqrt(screen.width * screen.width + screen.height * screen.height) * .1
            var md = Math.sqrt(player.__xyOffset.x * player.__xyOffset.x + player.__xyOffset.y * player.__xyOffset.y);
            if (md > ld) $hs.playerActionLeave();

        },

        playerActionEnter: function() {
            let player = $hs.player();

            if (player) {
                player.__requestPointerLock();
                player.__xyOffset = {
                    x: 0,
                    y: 0
                };
                player.addEventListener('mousemove', $hs.handlerPlayerMouseMove)
            }
        },

        playerActionLeave: function() {
            let player = $hs.player();
            if (player) player.removeEventListener('mousemove', $hs.handlerPlayerMouseMove)
            document.__exitPointerLock();
        },

        /* 按鍵響應方法 */
        keydownEvent: function(event) {

            let keyCode = lowerKeyCode(event.keyCode)
            let key = event.key.toLowerCase()
            let player = $hs.player()

            if (!player) {
                // no video tag
                return
            }

            let rootNode = getRoot(player);

            let keyAsm = (event.shiftKey ? SHIFT : 0) | (event.ctrlKey ? CTRL : 0) | (event.altKey ? ALT : 0);

            if (!keyAsm && keyCode == 27 && (document.fullscreenElement || rootNode.pointerLockElement)) {
                setTimeout(() => {
                    if (document.fullscreenElement) {
                        document.exitFullscreen();
                    } else if (document.pointerLockElement) {
                        $hs.playerActionLeave();
                    }
                }, 700);
                return;
            }

            if (event.code == "Space" && keyCode > 128) keyCode = 32;
            if (isInOperation(event.target)) return;

            //console.log('K01')

            /* 切換插件的可用狀態 */
            // Shift-`
            if (keyAsm == SHIFT && keyCode === 192) {
                $hs.enable = !$hs.enable;
                $hs.tips(false);
                if ($hs.enable) {
                    $hs.tips('啟用h5Player插件')
                } else {
                    $hs.tips('禁用h5Player插件')
                }
                // 阻止事件冒泡
                event.stopPropagation()
                event.preventDefault()
                return false
            }
            if (!$hs.enable) {
                consoleLog('h5Player 已禁用~')
                return false
            }

            /* 非全局模式下，不聚焦則不執行快捷鍵的操作 */

            if (!keyAsm && key == 'enter' && !isInOperation()) {
                if (!rootNode.pointerLockElement && !document.fullscreenElement) {
                    if (rootNode.pointerLockElement != player) {
                        $hs.playerActionEnter();

                        // 阻止事件冒泡
                        event.stopPropagation()
                        event.preventDefault()
                        return false
                    }
                } else if (rootNode.pointerLockElement && !document.fullscreenElement) {
                    $hs.playerActionLeave();

                    // 阻止事件冒泡
                    event.stopPropagation()
                    event.preventDefault()
                    return false
                } else if (document.fullscreenElement) {
                    document.exitFullscreen();

                    // 阻止事件冒泡
                    event.stopPropagation()
                    event.preventDefault()
                    return false
                }
            }

            let hv = (elm) => (elm && (elm == player || elm.contains(player)) ? elm : null);

            let _checkingPass;

            let plm = null;
            if (rootNode.activeElement && !rootNode.pointerLockElement && !document.fullscreenElement) {
                // the active element may or may not contains the player
                // but the player box (player->parent->parent->...) shall contains the active element (and the player)
                // so if the active element is inside the layoutbox, okay!
                // ps. layoutbox may be much larger than the activeelement, then it is not overlapping case.
                plm = rootNode.activeElement
                _checkingPass = $hs.isInActiveMode(rootNode.activeElement, player);
            } else {
                plm = hv(rootNode.pointerLockElement) || hv(document.fullscreenElement)
                _checkingPass = !!plm
            }

            if (_checkingPass) {

                if (isInOperation()) return

                $hs.keyCodeList = $hs.keyCodeList || Object.values($hs.keyMap);
                $hs.keyList = $hs.keyList || (Object.keys($hs.keyMap).concat(['enter', 'shift', 'control', 'alt', 'escape', ' ', 'space', 'arrowleft', 'arrowright', 'arrowright', 'arrowup', 'arrowdown', '|']));
                let isInUseCode = $hs.keyCodeList.includes(keyCode) || $hs.keyList.includes(key);
                if (!isInUseCode) return

                let res = $hs.playerTrigger(player, event)
                if (res == TERMINATE) {
                    event.stopPropagation()
                    event.preventDefault()
                    return false
                }

            }
        },
        /* 設置播放進度 */
        setPlayProgress: function(player, curTime) {
            if (!player) return
            if (!curTime || Number.isNaN(curTime)) return
            player.currentTime = curTime
            if (curTime > 3) {
                $hs.tips(false);
                $hs.tips(`Playback Jumps to ${$hs.toolFormatCT(curTime)}`)
                if (player.paused) player.play();
            }
        }
    }

    function makeFilter(arr, k) {
        var res = ""
        arr.forEach(function(e) {
            e.forEach(function(d) {
                res += " " + (1.0 * d * k).toFixed(9)
            })
        })
        return res.trim()
    }

    function _add_filter(rootElm) {
        var rootView = null;
        if (rootElm && rootElm.nodeType > 0) {
            while (rootElm.parentNode && rootElm.parentNode.nodeType === 1) rootElm = rootElm.parentNode;
            rootView = rootElm.querySelector('body') || rootElm;
        } else {
            return;
        }

        if (rootView && rootView.querySelector && !rootView.querySelector('#_h5player_section_')) {

            let svgFilterElm = document.createElement('section')
            svgFilterElm.style.position = 'fixed';
            svgFilterElm.style.left = '-999px';
            svgFilterElm.style.width = '1px';
            svgFilterElm.style.top = '-999px';
            svgFilterElm.style.height = '1px';
            svgFilterElm.id = '_h5player_section_'
            svgFilterElm.innerHTML = `
<svg id='_h5p_image' version="1.1" xmlns="http://www.w3.org/2000/svg">
<defs>
<filter id="_h5p_sharpen1">
<feConvolveMatrix filterRes="100 100" style="color-interpolation-filters:sRGB" order="3" kernelMatrix="` + `
-0.3 -0.3 -0.3
-0.3 3.4 -0.3
-0.3 -0.3 -0.3`.replace(/[\n\r]+/g, '  ').trim() + `"  preserveAlpha="true"/>
</filter>
<filter id="_h5p_unsharpen1">
<feConvolveMatrix style="color-interpolation-filters:sRGB;color-interpolation: sRGB;" order="5" kernelMatrix="` +
                makeFilter([
                    [1, 4, 6, 4, 1],
                    [4, 16, 24, 16, 4],
                    [6, 24, -476, 24, 6],
                    [4, 16, 24, 16, 4],
                    [1, 4, 6, 4, 1]
                ], -1 / 256) + `"  preserveAlpha="false"/>
</filter>
<filter id="_h5p_unsharpen3_05">
<feConvolveMatrix style="color-interpolation-filters:sRGB;color-interpolation: sRGB;" order="3" kernelMatrix="` +
                makeFilter(
                    [
                        [0.025, 0.05, 0.025],
                        [0.05, -1.1, 0.05],
                        [0.025, 0.05, 0.025]
                    ], -1 / .8) + `"  preserveAlpha="false"/>
</filter>
<filter id="_h5p_unsharpen3_10">
<feConvolveMatrix style="color-interpolation-filters:sRGB;color-interpolation: sRGB;" order="3" kernelMatrix="` +
                makeFilter(
                    [
                        [0.05, 0.1, 0.05],
                        [0.1, -1.4, 0.1],
                        [0.05, 0.1, 0.05]
                    ], -1 / .8) + `"  preserveAlpha="false"/>
</filter>
<filter id="_h5p_unsharpen5_05">
<feConvolveMatrix style="color-interpolation-filters:sRGB;color-interpolation: sRGB;" order="5" kernelMatrix="` +
                makeFilter(
                    [
                        [0.025, 0.1, 0.15, 0.1, 0.025],
                        [0.1, 0.4, 0.6, 0.4, 0.1],
                        [0.15, 0.6, -18.3, 0.6, 0.15],
                        [0.1, 0.4, 0.6, 0.4, 0.1],
                        [0.025, 0.1, 0.15, 0.1, 0.025]
                    ], -1 / 12.8) + `"  preserveAlpha="false"/>
</filter>
<filter id="_h5p_unsharpen5_10">
<feConvolveMatrix style="color-interpolation-filters:sRGB;color-interpolation: sRGB;" order="5" kernelMatrix="` +
                makeFilter(
                    [
                        [0.05, 0.2, 0.3, 0.2, 0.05],
                        [0.2, 0.8, 1.2, 0.8, 0.2],
                        [0.3, 1.2, -23.8, 1.2, 0.3],
                        [0.2, 0.8, 1.2, 0.8, 0.2],
                        [0.05, 0.2, 0.3, 0.2, 0.05]
                    ], -1 / 12.8) + `"  preserveAlpha="false"/>
</filter>
<filter id="_h5p_unsharpen9_05">
<feConvolveMatrix style="color-interpolation-filters:sRGB;color-interpolation: sRGB;" order="9" kernelMatrix="` +
                makeFilter(
                    [
                        [0.025, 0.2, 0.7, 1.4, 1.75, 1.4, 0.7, 0.2, 0.025],
                        [0.2, 1.6, 5.6, 11.2, 14, 11.2, 5.6, 1.6, 0.2],
                        [0.7, 5.6, 19.6, 39.2, 49, 39.2, 19.6, 5.6, 0.7],
                        [1.4, 11.2, 39.2, 78.4, 98, 78.4, 39.2, 11.2, 1.4],
                        [1.75, 14, 49, 98, -4792.7, 98, 49, 14, 1.75],
                        [1.4, 11.2, 39.2, 78.4, 98, 78.4, 39.2, 11.2, 1.4],
                        [0.7, 5.6, 19.6, 39.2, 49, 39.2, 19.6, 5.6, 0.7],
                        [0.2, 1.6, 5.6, 11.2, 14, 11.2, 5.6, 1.6, 0.2],
                        [0.025, 0.2, 0.7, 1.4, 1.75, 1.4, 0.7, 0.2, 0.025]
                    ], -1 / 3276.8) + `"  preserveAlpha="false"/>
</filter>
<filter id="_h5p_unsharpen9_10">
<feConvolveMatrix style="color-interpolation-filters:sRGB;color-interpolation: sRGB;" order="9" kernelMatrix="` +
                makeFilter(
                    [
                        [0.05, 0.4, 1.4, 2.8, 3.5, 2.8, 1.4, 0.4, 0.05],
                        [0.4, 3.2, 11.2, 22.4, 28, 22.4, 11.2, 3.2, 0.4],
                        [1.4, 11.2, 39.2, 78.4, 98, 78.4, 39.2, 11.2, 1.4],
                        [2.8, 22.4, 78.4, 156.8, 196, 156.8, 78.4, 22.4, 2.8],
                        [3.5, 28, 98, 196, -6308.6, 196, 98, 28, 3.5],
                        [2.8, 22.4, 78.4, 156.8, 196, 156.8, 78.4, 22.4, 2.8],
                        [1.4, 11.2, 39.2, 78.4, 98, 78.4, 39.2, 11.2, 1.4],
                        [0.4, 3.2, 11.2, 22.4, 28, 22.4, 11.2, 3.2, 0.4],
                        [0.05, 0.4, 1.4, 2.8, 3.5, 2.8, 1.4, 0.4, 0.05]
                    ], -1 / 3276.8) + `"  preserveAlpha="false"/>
</filter>
<filter id="_h5p_grey1">
<feColorMatrix values="0.3333 0.3333 0.3333 0 0
0.3333 0.3333 0.3333 0 0
0.3333 0.3333 0.3333 0 0
0      0      0      1 0"/>
<feColorMatrix type="saturate" values="0" />
</filter>
</defs>
</svg>
`;

            rootView.appendChild(svgFilterElm);
        }

    }

    function videoDOMFound(video) {

        if (video.getAttribute('_h5p_video_init_')) return;
        video.setAttribute('_h5p_video_init_', '1');

        let rootNode = getRoot(video);
        if (rootNode.host) $hs.getLayoutBox(video);
        let rootElm = rootNode.querySelector('head') || rootNode.querySelector('html') || document.documentElement //48763
        _add_filter(rootElm)

        video.addEventListener('loadedmetadata', $hs.handlerVideoLoadedMetaData, true);

    }

    /**
     * 某些網頁用了attachShadow closed mode，需要open才能獲取video標籤，例如百度雲盤
     * 解決參考：
     * https://developers.google.com/web/fundamentals/web-components/shadowdom?hl=zh-cn#closed
     * https://stackoverflow.com/questions/54954383/override-element-prototype-attachshadow-using-chrome-extension
     */

    const eventHandler = async (evtKey, details) => {
        let v_sub;
        switch (evtKey) {
            case 'addEventListener':
                'N/A';
                break;
            case 'removeEventListener':
                'N/A';
                break;
            case 'attachShadow':
            case 'createShadowRoot':
                if (details.shadowRoot) {
                    if (_shadowDomList_ && _shadowDomList_.push) _shadowDomList_.push(details.shadowRoot)
                    v_sub = new VideoListener(details.shadowRoot);
                    v_sub.listen(wVideo)
                    $hs.bindKeyEvents(details.shadowRoot);
                }
                break;
            default:
        }

    }

    function hackAttachShadow() {
        try {
            if (!window.HTMLElement) throw "h5Player: HTMLElement not supported";
            if (!window.HTMLElement.prototype) throw "h5Player: HTMLElement.prototype not supported";
            if (!('attachShadow' in window.HTMLElement.prototype)) throw "h5Player: HTMLElement.prototype.attachShadow not supported";

            if (HTMLElement.prototype._hasHackAttachShadow_) return;
            HTMLElement.prototype._hasHackAttachShadow_ = true;

            window.HTMLElement.prototype._attachShadow = window.HTMLElement.prototype.attachShadow

            window.HTMLElement.prototype.attachShadow = function() {
                let arg = Array.prototype.slice.call(arguments);
                if (arg[0] && arg[0].mode) arg[0].mode = 'open';
                let shadowRoot = HTMLElement.prototype._attachShadow.apply(this, arg)
                eventHandler('attachShadow', {
                    shadowRoot
                })
                return shadowRoot
            }
        } catch (e) {
            ;
        }

    }

    function hackCreateShadowRoot() {

        try {
            if (!window.HTMLElement) throw "h5Player: HTMLElement not supported";
            if (!window.HTMLElement.prototype) throw "h5Player: HTMLElement.prototype not supported";
            if (!('createShadowRoot' in window.HTMLElement.prototype)) throw "h5Player: HTMLElement.prototype.createShadowRoot not supported";

            if (HTMLElement.prototype._hasHackCreateShadowRoot_) return;
            HTMLElement.prototype._hasHackCreateShadowRoot_ = true;

            HTMLElement.prototype._createShadowRoot = HTMLElement.prototype.createShadowRoot;

            HTMLElement.prototype.createShadowRoot = function() {
                const shadowRoot = HTMLElement.prototype._createShadowRoot.apply(this, arguments);
                eventHandler('createShadowRoot', {
                    shadowRoot
                });
                return shadowRoot;
            }
        } catch (e) {
            ;
        }
    }

    /* 事件偵聽hack */
    function hackEventListener() {
        if (!window.EventTarget) return
        const EVENT = window.EventTarget.prototype
        if (EVENT._addEventListener) return

        function Listeners(dom, type) {
            this._dom = dom;
            this._type = type;
            this.listenersCount = 0;
            this.hashList = {};
        };
        Listeners.prototype = new Object;
        Listeners.prototype.__defineGetter__("baseFunc", function() {
            if (this._dom && this._type) {
                return this._dom['on' + this._type];
            }
        });
        Listeners.prototype.__defineGetter__("funcCount", function() {
            if (this._dom && this._type) {
                return (typeof this.baseFunc == 'function') * 1 + (this.listenersCount || 0)
            }
        });

        EVENT._addEventListener = EVENT.addEventListener
        EVENT._removeEventListener = EVENT.removeEventListener
        // hack addEventListener
        EVENT._evtCount = 0;

        const _EVENT_raf = ((elm) => {

            if (!elm._timeupdatef_hasListen) {

                elm._timeupdatef_hasListen = true;

                if (!_endlessloop) {
                    _endlessloop = new EndlessLoop();
                }

                let opts = _endlessloop.append(handle.timeupdatef_ell)
                opts.video = elm;
                opts.lastTime = -1;
                opts.evt = new SimEvent("timeupdatef", {
                    bubbles: false,
                    cancelable: true,
                }, 'timeupdate');

                opts.loopingStart();
                _ell_timeupdatefs.push(opts);

            }

        });

        EVENT.addEventListener = function() {
            if (!this || !(this instanceof EventTarget)) {
                return EVENT._addEventListener.apply(this, arguments)
                //unknown bug?
            }

            let arg = arguments
            let type = arg[0]
            let listener = arg[1]
            let boolCapture = !!((arg[2] && typeof arg[2] == 'object') ? arg[2].capture : arg[2])
            let sim_arg = null;
            if (type == 'timeupdate' && this.nodeType == 1 && this.nodeName == "VIDEO" && 0) {
                consoleLog('timeupdate detected')
                sim_arg = Array.prototype.slice.call(arg);
                _EVENT_raf(this);
                sim_arg[0] = 'timeupdatef';
                sim_arg[1] = sim_arg_1_fn(sim_arg[1], _evtOB_create._timeupdate())
                EVENT._addEventListener.apply(this, sim_arg)
                consoleLog('timeupdate(fast) is added with listener', fn_toString(listener))
            } else {
                EVENT._addEventListener.apply(this, arg)
            }

            this._listeners = this._listeners || {}
            this._listeners[type] = this._listeners[type] || new Listeners(this, type)
            let addedTime = +new Date().getTime();
            let uid = 100000 + (++EVENT._evtCount);
            let listenerObj = {
                //target: this,
                //type,
                listener,
                options: arg[2],
                uid: uid,
                useCapture: boolCapture,
                sim_arg
                //addedTime:addedTime
            }
            this._listeners[type].hashList[uid + ''] = listenerObj;
            this._listeners[type].listenersCount++;
        }
        // hack removeEventListener
        EVENT.removeEventListener = function() {
            if (!this || !(this instanceof EventTarget)) {
                return EVENT._removeEventListener.apply(this, arguments)
                //unknown bug?
            }

            let arg = arguments
            let type = arg[0]
            let listener = arg[1]

            let boolCapture = !!((arg[2] && typeof arg[2] == 'object') ? arg[2].capture : arg[2])

            let defaultRemoval = true;
            if (this._listeners && this._listeners[type] && this._listeners[type].hashList) {
                let hashList = this._listeners[type].hashList
                for (let k in hashList) {
                    if (hashList[k].listener === listener && hashList[k].useCapture == boolCapture) {
                        if (hashList[k].sim_arg) {
                            defaultRemoval = false;
                            EVENT._removeEventListener.apply(this, hashList[k].sim_arg.slice(0, 3));
                        }
                        delete hashList[k];
                        this._listeners[type].listenersCount--;
                        break;
                    }
                }
            }
            if (defaultRemoval) EVENT._removeEventListener.apply(this, arg);
        }
    }

    function wVideo(video) {

        if (!video) return;
        if (video.getAttribute('_h5ppid')) return;
        var alabel = video.getAttribute('aria-label')
        if (alabel && typeof alabel == "string" && alabel.toUpperCase() == "GIF") return;
        consoleLog('wVideo', video)

        wVideo._readyCount++;
        /* 檢測是否存在H5播放器 */

        let videoCount = wVideo._readyCount;
        consoleLog(' - HTML5 Video is detected -', `Number of Videos: ${videoCount}`)

        $hs.varInitCount = ($hs.varInitCount || 0) + 1;
        if ($hs.varInitCount === 1) $hs.fireGlobalInit();

        video.setAttribute('_h5ppid', 'h5p-' + $hs.varInitCount)
        videoDOMFound(video)

    }

    wVideo._readyCount = 0;

    hackAttachShadow()
    hackCreateShadowRoot()
    hackEventListener()

    /* 檢測到有視頻標籤就進行初始化 */
    window.addEventListener('message', $hs.handlerWinMessage, false);
    let v_main = new VideoListener(document.documentElement);
    v_main.listen(wVideo)

    let ls_res = []
    try {
        ls_res = [!!window.localStorage, !!window.top.localStorage]
    } catch (e) {}

    try {
        let winp = window;
        let winc = 0;
        while (winp !== window.top && winp && ++winc) winp = winp.parentNode;
        ls_res.push(winc)
    } catch (e) {}

    consoleLogF('- h5Player Plugin Loaded -', ...ls_res)

    function isInCrossOriginFrame() {
        let result = true;
        try {
            if (window.top.localStorage || window.top.location.href) result = false;
        } catch (e) {}
        return result
    }

    if (isInCrossOriginFrame()) consoleLog('cross origin frame detected');

})(null);