// ==UserScript==
// @name        		MaximizeVideo
// @namespace   		http://www.icycat.com
// @description 		Maximize all video players
// @description:zh-CN 	让所有视频网页全屏
// @author      		冻猫
// @include     		*
// @version     		9.2.3
// @grant       		unsafeWindow
// @run-at      		document-end
// @downloadURL none
// ==/UserScript==

(function() {

	'use strict';

	var fullStatus = false,
		isIframe = false,
		isFullIframePlayer = false,
		isRbtn = true,
		parentArray = new Array(),
		backStyle = new Object(),
		mouse = {
			leave: 'listener',
			over: 'listener'
		},
		browser, btnText, player, controlBtn, leftBtn, rightBtn;

	//Html5规则[overlay, html5Player],适用于自适应大小HTML5播放器
	var html5Rules = {
		//'www.youtube.com': ['null', '#player-api'],
		'www.twitch.tv': ['.js-control-fullscreen-overlay', '#player'],
		'www.huya.com': ['#player-video', '#liveRoomObj'],
		'www.bilibili.com': ['null', '#bilibiliPlayer'],
		'www.pornhub.com': ['.mhp1138_eventCatcher', '#player'],
		'www.icourse163.org': ['.j-display', '.j-video'],
		'www.panda.tv': ['#room-player-video-danmu div', '.h5player-player-container'],
		'vk.com': ['.videoplayer_media', '.videoplayer'],
		'www.douyu.com': ['null', '.danmu-wrap'],
		'www.redtube.com': ['.mhp1138_eventCatcher', '#redtube_flv_player'],
		'www.youporn.com': ['.mhp1138_eventCatcher', '#videoContainer']
	}

	//iframe播放器显示按钮规则
	//iframe关键字id、classname、src
	var iframeRules = /player|youtube|video|movie|anime|flv/i;
	//网站域名
	var iframeUrlRules = [
		'kisshentai.net',
		'www.watchseries.ac',
		'www.panda.tv',
		'animeflv.net',
		'www.vodlocker.city',
		'projectwatchseries.com',
		'reyanime.com'
	];

	//自动缩放内层内播放器规则
	var fullIframePlayerRules = [
		'newplayer.jfrft.com',
		'player.005.tv',
		'player.xcmh.cc',
		'www.auroravid.to',
		'www.mp4upload.com',
		'vodlocker.com',
		'52dongm.duapp.com'
	];

	//flash游戏页面，不在flash上显示还原按钮
	var excludeRbtnRules = [
		'www.dmm.com',
		'www.dmm.co.jp',
		'www.4399.com',
		'www.3366.com',
		'flash.17173.com',
		'www.7k7k.com'
	];

	if (excludeRbtnRules.indexOf(document.location.hostname) != -1) {
		isRbtn = false;
	}

	if (window.top !== window.self) {
		isIframe = true;
	}

	if (navigator.language.toLocaleLowerCase() == 'zh-cn') {
		btnText = {
			out: '网页全屏',
			inner: '内层全屏',
			restore: '还原大小'
		};
	} else {
		btnText = {
			out: 'Maximize',
			inner: 'M<br/>A<br/>X',
			restore: 'Restore'
		};
	}

	if (/Firefox/i.test(navigator.userAgent)) {
		browser = 'firefox';
	} else if (/Chrome/i.test(navigator.userAgent)) {
		browser = 'chrome';
	} else {
		browser = 'other';
	}

	var createButton = function(id) {
		var btn = document.createElement('tbdiv');
		btn.id = id;
		btn.onclick = function() {
			maximize.playerControl();
		};
		document.body.appendChild(btn);
		return btn;
	}

	var setButton = {
		init: function() {
			//防止页面脚本干扰，重新初始化样式
			if (!document.getElementById('playerControlBtn')) {
				init();
			}
			if (isIframe && !isFullIframePlayer && fullIframePlayerRules.indexOf(document.location.hostname) != -1) {
				if (player.nodeName == 'OBJECT' || player.nodeName == 'EMBED') {
					maximize.checkParent();
					maximize.addClass();
					tool.addStyle([
						'#htmlToothbrush #bodyToothbrush .playerToothbrush {left:0px !important;width:100vw !important;}'
					].join('\n'));
					isFullIframePlayer = true;
				}
			}
			if (tool.isFullClient(player) || isFullIframePlayer) {
				return;
			}
			if (isIframe && player.nodeName == 'VIDEO' && tool.isHtml5FullClient(player)) {
				return;
			}
			this.show();
		},
		show: function() {
			try {
				player.addEventListener('mouseleave', handle.leavePlayer, false);
				if (!fullStatus) {
					document.addEventListener('scroll', handle.scrollFix, false);
				}
			} catch (e) {
				mouse.leave = player.onmouseleave;
				player.onmouseleave = function() {
					handle.leavePlayer();
					player.onmouseleave = mouse.leave;
				};
			}
			controlBtn.style.display = 'block';
			controlBtn.style.visibility = 'visible';
			this.locate();
		},
		locate: function() {
			var playerRect = tool.getRect(player);
			if (playerRect.pageY < 20 || fullStatus) {
				if (fullStatus) {
					controlBtn.classList.remove('playerControlBtnCol');
					playerRect.screenY = playerRect.screenY + 50;
					playerRect.screenX = playerRect.screenX - 30;
					controlBtn.innerHTML = btnText.restore;
				} else {
					playerRect.screenY = playerRect.screenY + 20;
					if (Math.abs(tool.getClient().width - player.offsetWidth) < 21 && Math.abs(tool.getClient().height - player.offsetHeight) > 21) {
						playerRect.screenX = playerRect.screenX + 44;
					} else {
						playerRect.screenX = playerRect.screenX + 64;
					}
					controlBtn.classList.add('playerControlBtnCol');
					if (isIframe) {
						controlBtn.innerHTML = btnText.inner;
					} else {
						controlBtn.innerHTML = btnText.out;
					}
				}
				if (browser == 'firefox' && fullStatus) {
					controlBtn.style.opacity = '1';
				} else {
					controlBtn.style.opacity = '0.5';
				}
			} else {
				controlBtn.classList.remove('playerControlBtnCol');
				controlBtn.style.opacity = '0.5';
				controlBtn.innerHTML = btnText.out;
			}
			controlBtn.style.top = playerRect.screenY - 20 + 'px';
			controlBtn.style.left = playerRect.screenX - 64 + player.offsetWidth + 'px';
		}
	};

	var tool = {
		getRect: function(element) {
			var rect = element.getBoundingClientRect();
			var scroll = tool.getScroll();
			return {
				pageX: rect.left + scroll.left,
				pageY: rect.top + scroll.top,
				screenX: rect.left,
				screenY: rect.top
			};
		},
		isFullClient: function(element) {
			var client = tool.getClient();
			var rect = tool.getRect(element);
			if (Math.abs(client.width - element.offsetWidth) < 21 && Math.abs(client.height - element.offsetHeight) < 21 && rect.screenY < 10 && rect.screenX < 20) {
				return true;
			} else {
				return false;
			}
		},
		isHtml5FullClient: function(element) {
			var client = tool.getClient();
			var rect = tool.getRect(element);
			var w = client.width - element.offsetWidth;
			var h = client.height - element.offsetHeight;
			if (w >= 0 && h >= 0) {
				if ((w < 21 && rect.screenX < 20) || (h < 21 && rect.screenY < 10)) {
					return true;
				} else {
					return false;
				}
			} 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: function(css) {
			var style = document.createElement('style');
			style.type = 'text/css';
			var node = document.createTextNode(css);
			style.appendChild(node);
			document.head.appendChild(style);
			return style;
		}
	};

	var handle = {
		getPlayer: function(e) {
			if (fullStatus) {
				return;
			}
			var target = e.target;
			if (html5Rules[document.location.hostname]) {
				var overlay = document.querySelector(html5Rules[document.location.hostname][0]);
				var html5Player = document.querySelector(html5Rules[document.location.hostname][1]);
				if (html5Player) {
					player = html5Player;
				}
				if (target == overlay) {
					setButton.init();
					return;
				}
			}
			switch (target.nodeName) {
				case 'IFRAME':
					if (!iframeRules.test(target.className) && !iframeRules.test(target.src) && !iframeRules.test(target.id) && !iframeRules.test(document.location.href) && iframeUrlRules.indexOf(document.location.hostname) == -1) {
						handle.leavePlayer();
						break;
					}
				case 'OBJECT':
				case 'EMBED':
				case 'VIDEO':
					if (target.offsetWidth > 99 && target.offsetHeight > 99) {
						player = target;
						setButton.init();
					}
					break;
				default:
					handle.leavePlayer();
			}
		},
		leavePlayer: function() {
			if (controlBtn.style.visibility == 'visible') {
				controlBtn.style.opacity = '';
				controlBtn.style.visibility = '';
				try {
					player.removeEventListener('mouseleave', handle.leavePlayer, false);
				} catch (e) {}
				document.removeEventListener('scroll', handle.scrollFix, false);
			}
		},
		scrollFix: function() {
			setButton.locate();
		},
		hotKey: function(e) {
			//默认退出键为ESC。需要修改为其他快捷键的请搜索"keycode"，修改为按键对应的数字。
			if (e.keyCode == 27) {
				maximize.playerControl();
			}
		},
		restoreButton: function() {
			if (isIframe) {
				return;
			}
			switch (browser) {
				case 'chrome':
					if (window.outerWidth < window.screen.width - 10) {
						setButton.show();
					}
					break;
				case 'firefox':
					if (window.innerWidth < window.screen.width - 10) {
						setButton.show();
					}
					break;
			}
		}
	};

	var maximize = {
		playerControl: function() {
			if (!player) {
				return;
			}
			this.checkParent();
			if (!fullStatus) {
				this.fullWin();
			} else {
				this.smallWin();
			}
		},
		checkParent: function() {
			parentArray = [];
			var full = player;
			while (full = full.parentNode) {
				if (full.nodeName == 'BODY') {
					break;
				}
				if (full.getAttribute) {
					parentArray.push(full);
				}
			}
		},
		fullWin: function() {
			if (!fullStatus) {
				document.removeEventListener('mouseover', handle.getPlayer, false);
				if (isRbtn) {
					try {
						player.addEventListener('mouseover', handle.restoreButton, false);
					} catch (e) {
						mouse.over = player.onmouseover;
						player.onmouseover = handle.restoreButton;
					}
				}
				backStyle = {
					htmlId: document.body.parentNode.id,
					bodyId: document.body.id
				};
				leftBtn.style.display = 'block';
				rightBtn.style.display = 'block';
				controlBtn.style.display = '';
				this.addClass();
			}
			fullStatus = true;
		},
		addClass: function() {
			document.body.parentNode.id = 'htmlToothbrush';
			document.body.id = 'bodyToothbrush';
			for (var i = 0; i < parentArray.length; i++) {
				parentArray[i].classList.add('parentToothbrush');
				//父元素position:fixed会造成层级错乱
				if (getComputedStyle(parentArray[i]).position == 'fixed') {
					parentArray[i].classList.add('absoluteToothbrush');
				}
			}
			player.classList.add('playerToothbrush');
			if (document.location.hostname != 'www.youtube.com' && player.nodeName == 'VIDEO') {
				backStyle.controls = player.controls;
				player.controls = true;
			}
			window.dispatchEvent(new Event('resize'));
		},
		smallWin: function() {
			if (isRbtn) {
				try {
					player.removeEventListener('mouseover', handle.restoreButton, false);
				} catch (e) {}
				if (mouse.over != 'listener') {
					player.onmouseover = mouse.over;
				}
			}
			document.body.parentNode.id = backStyle.htmlId;
			document.body.id = backStyle.bodyId;
			for (var i = 0; i < parentArray.length; i++) {
				parentArray[i].classList.remove('parentToothbrush');
				parentArray[i].classList.remove('absoluteToothbrush');
			}
			player.classList.remove('playerToothbrush');
			if (document.location.hostname != 'www.youtube.com' && player.nodeName == 'VIDEO') {
				player.controls = backStyle.controls;
			}
			leftBtn.style.display = '';
			rightBtn.style.display = '';
			controlBtn.style.display = '';
			document.addEventListener('mouseover', handle.getPlayer, false);
			window.dispatchEvent(new Event('resize'));
			fullStatus = false;
		}
	};

	var init = function() {
		controlBtn = createButton('playerControlBtn');
		leftBtn = createButton('leftFullStackButton');
		rightBtn = createButton('rightFullStackButton');
		if (getComputedStyle(controlBtn).position != 'fixed') {
			tool.addStyle([
				'#htmlToothbrush, #bodyToothbrush {overflow:hidden !important;}',
				'#htmlToothbrush #bodyToothbrush .parentToothbrush {overflow:visible !important;z-index:auto !important;transform:none !important;-webkit-transform-style:flat !important;transition:none !important;contain:none !important;}',
				'#htmlToothbrush #bodyToothbrush .absoluteToothbrush {position:absolute !important;}',
				'#htmlToothbrush #bodyToothbrush .playerToothbrush {position:fixed !important;top:0px !important;left:1px !important;width:calc(100vw - 2px) !important;height:100vh !important;max-width:none !important;max-height:none !important;min-width:0 !important;min-height:0 !important;margin:0 !important;padding:0 !important;z-index:2147483645 !important;border:none !important;background-color:#000 !important;transform:none !important;}',
				'#playerControlBtn {visibility:hidden;opacity:0;display:none;transition: all 0.5s ease;cursor: pointer;font: 12px "微软雅黑";margin:0;width:64px;height:20px;line-height:20px;border:none;text-align: center;position: fixed;z-index:2147483646;background-color: #27A9D8;color: #FFF;} #playerControlBtn:hover {visibility:visible;opacity:1;background-color:#2774D8;}',
				'#playerControlBtn.playerControlBtnCol {width:20px;height:64px;line-height:16px;}',
				'#leftFullStackButton{display:none;position:fixed;width:1px;height:100vh;top:0;left:0;z-index:2147483646;background:#000;}',
				'#rightFullStackButton{display:none;position:fixed;width:1px;height:100vh;top:0;right:0;z-index:2147483646;background:#000;}'
			].join('\n'));
			if (document.location.hostname == 'www.youtube.com') {
				//Youtube
				tool.addStyle([
					'#htmlToothbrush .ytp-chrome-bottom {left:0px !important;right:0px !important;margin:auto !important;position:fixed !important;z-index:2147483647 !important;}',
					'#htmlToothbrush .ytp-settings-menu {left:70% !important;bottom:50px !important;position:fixed !important;z-index:2147483647 !important;}',
					'#htmlToothbrush .caption-window {left:0px !important;right:0px !important;margin:auto !important;bottom:50px !important;position:fixed !important;z-index:2147483647 !important;}',
					'#htmlToothbrush .ytp-gradient-bottom {left:0px !important;right:0px !important;margin:auto !important;position:fixed !important;z-index:2147483646 !important;}',
				].join('\n'));
			}
		}
	};

	init();

	document.addEventListener('mouseover', handle.getPlayer, false);
	document.addEventListener('keydown', handle.hotKey, false);

})();