赣州市洪水风险预警系统二维版本
xiebin
2023-03-02 b39483c96ae572121d3c619c0b9d37634e682cc4
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/*!
* screenfull
* v2.0.0 - 2014-12-22
* (c) Sindre Sorhus; MIT License
*/
(function () {
    'use strict';
 
    var isCommonjs = typeof module !== 'undefined' && module.exports;
    var keyboardAllowed = typeof Element !== 'undefined' && 'ALLOW_KEYBOARD_INPUT' in Element;
 
    var fn = (function () {
        var val;
        var valLength;
 
        var fnMap = [
            [
                'requestFullscreen',
                'exitFullscreen',
                'fullscreenElement',
                'fullscreenEnabled',
                'fullscreenchange',
                'fullscreenerror'
            ],
            // new WebKit
            [
                'webkitRequestFullscreen',
                'webkitExitFullscreen',
                'webkitFullscreenElement',
                'webkitFullscreenEnabled',
                'webkitfullscreenchange',
                'webkitfullscreenerror'
 
            ],
            // old WebKit (Safari 5.1)
            [
                'webkitRequestFullScreen',
                'webkitCancelFullScreen',
                'webkitCurrentFullScreenElement',
                'webkitCancelFullScreen',
                'webkitfullscreenchange',
                'webkitfullscreenerror'
 
            ],
            [
                'mozRequestFullScreen',
                'mozCancelFullScreen',
                'mozFullScreenElement',
                'mozFullScreenEnabled',
                'mozfullscreenchange',
                'mozfullscreenerror'
            ],
            [
                'msRequestFullscreen',
                'msExitFullscreen',
                'msFullscreenElement',
                'msFullscreenEnabled',
                'MSFullscreenChange',
                'MSFullscreenError'
            ]
        ];
 
        var i = 0;
        var l = fnMap.length;
        var ret = {};
 
        for (; i < l; i++) {
            val = fnMap[i];
            if (val && val[1] in document) {
                for (i = 0, valLength = val.length; i < valLength; i++) {
                    ret[fnMap[0][i]] = val[i];
                }
                return ret;
            }
        }
 
        return false;
    })();
 
    var screenfull = {
        request: function (elem) {
            var request = fn.requestFullscreen;
 
            elem = elem || document.documentElement;
 
            // Work around Safari 5.1 bug: reports support for
            // keyboard in fullscreen even though it doesn't.
            // Browser sniffing, since the alternative with
            // setTimeout is even worse.
            if (/5\.1[\.\d]* Safari/.test(navigator.userAgent)) {
                elem[request]();
            } else {
                elem[request](keyboardAllowed && Element.ALLOW_KEYBOARD_INPUT);
            }
        },
        exit: function () {
            document[fn.exitFullscreen]();
        },
        toggle: function (elem) {
            if (this.isFullscreen) {
                this.exit();
            } else {
                this.request(elem);
            }
        },
        raw: fn
    };
 
    if (!fn) {
        if (isCommonjs) {
            module.exports = false;
        } else {
            window.screenfull = false;
        }
 
        return;
    }
 
    Object.defineProperties(screenfull, {
        isFullscreen: {
            get: function () {
                return !!document[fn.fullscreenElement];
            }
        },
        element: {
            enumerable: true,
            get: function () {
                return document[fn.fullscreenElement];
            }
        },
        enabled: {
            enumerable: true,
            get: function () {
                // Coerce to boolean in case of old WebKit
                return !!document[fn.fullscreenEnabled];
            }
        }
    });
 
    if (isCommonjs) {
        module.exports = screenfull;
    } else {
        window.screenfull = screenfull;
    }
})();