// ==UserScript==
// @name        Video Player Toothbrush
// @namespace   http://www.icycat.com
// @description 牙刷科技! 让所有视频播放器网页全屏！默认快捷键ALT+1
// @include     *www.bilibili.com/video/av*
// @include     *www.iqiyi.com/*
// @include     *v.youku.com/*
// @include     *v.17173.com/*
// @include     *www.tudou.com/*
// @include     *.letv.com/*
// @include     *v.pptv.com/*
// @include     *tv.sohu.com/*
// @include     *v.ku6.com/*
// @include     *vod.kankan.com/*
// @include     *v.qq.com/*
// @include     *www.56.com/*
// @include     *live.yy.com/*
// @include     *www.acfun.com/v/ac*
// @version     1.3
// @grant       none
// @run-at      document-start
// @downloadURL none
// ==/UserScript==

//若有需要可以自行添加域名，按照include的格式添加即可。
//自行修改快捷键请参考81行注释。注意焦点在flash上时快捷键会失效。

var i, divArray, player = null, status = false, backStyle = new Array(), playerStyle, first = true;

document.addEventListener('DOMContentLoaded', init, false);

function init() {
	if (!checkPlayer()) {
		console.log('延迟2秒重新检测');
		var t = setTimeout(function() {
			checkPlayer();
		}, 2000);
	}
}

function checkPlayer() {
	var embedArray = document.getElementsByTagName('embed');
	console.log('embed数量' + embedArray.length);
	if (embedArray.length > 0) {
		for (i = 0; i < embedArray.length; i++) {
			console.log('embed播放器检测' + i);
			if (embedArray[i].getAttribute('allowfullscreen') && embedArray[i].offsetWidth > 500) {
				player = embedArray[i];
				console.log('找到embed播放器');
				break;
			}
		}
	}
	if (!player) {
		console.log('未找到embed播放器');
		var objectArray = document.getElementsByTagName('object');
		if (objectArray.length > 0) {
			console.log('object数量' + objectArray.length);
			objectloop: for (i = 0; i < objectArray.length; i++) {
				console.log('object播放器检测' + i);
				if (objectArray[i].offsetWidth > 500) {
					var paramArray = objectArray[i].getElementsByTagName('param');
					var j;
					for (j = 0; j < paramArray.length; j++) {
						if (paramArray[j].name.toLowerCase() == 'allowfullscreen') {
							player = objectArray[i];
							console.log('找到object播放器');
							break objectloop;
						}
					}
				}
			}
		}
	}
	if (!player) {
		console.log('未找到object播放器');
		return false;
	} else {
		console.log('创建按钮&生成快捷键');
		createButton();
		window.addEventListener("keydown", function(e) {
			// 默认快捷键为alt + 1, 全屏/恢复。altkey是按键ALT,keyCode=49是按键1，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.altKey && e.keyCode == 49) { 
				playerControl();
			}
		}, false);
		return true;
	}
}

function createButton() {
	var button = document.createElement('span');
	button.id = 'fullStackButton';
	button.style = 'position:fixed;width:1px;height:100%;top:0;left:0;z-index:33333;';
	button.onclick = function() {
		playerControl();
	};
	document.body.appendChild(button);
}

function playerControl() {
	if (!status) {
		status = true;
		fullWin();
	} else {
		status = false;
		smallWin();
	}
}

function fullWin() {
	if (first) {
		first = false;
		var full = player;
		do {
			if (full.getAttribute) {
				full.setAttribute('full_stack', true);
			}
		} while (full = full.parentNode);
		divArray = document.getElementsByTagName('div');
		playerStyle = {
			width: player.style.width,
			height: player.style.height,
			position: player.style.position,
			margin: player.style.margin,
			padding: player.style.padding,
			left: player.style.left,
			zIndex: player.parentNode.style.zIndex
		};
		console.log(playerStyle);
	}
	for (i = 0; i < divArray.length; i++) {
		if (divArray[i].getAttribute) {
			if (divArray[i].getAttribute('full_stack')) {
				backStyle[i] = {
					width: divArray[i].style.width,
					height: divArray[i].style.height,
					position: divArray[i].style.position,
					margin: divArray[i].style.margin,
					padding: divArray[i].style.padding,
					background: divArray[i].style.background
				};
				divArray[i].style.width = '100%';
				divArray[i].style.height = '100%';
				divArray[i].style.position = 'fixed';
				divArray[i].style.margin = '0 0';
				divArray[i].style.padding = '0 0';
				divArray[i].style.background = '#000';
			} else {
				backStyle[i] = divArray[i].style.display;
				divArray[i].style.display = 'none';
			}
		}
	}
	player.style.width = '100%';
	player.style.height = '100%';
	player.style.position = 'fixed';
	player.style.margin = '0 0';
	player.style.padding = '0 0 0 1px';
	player.style.left = '0';
	player.parentNode.style.zIndex = '22222';
	console.log('网页全屏完成');
}

function smallWin() {
	for (i = 0; i < divArray.length; i++) {
		if (divArray[i].getAttribute) {
			if (divArray[i].getAttribute('full_stack')) {
				divArray[i].style.width = backStyle[i].width;
				divArray[i].style.height = backStyle[i].height;
				divArray[i].style.position = backStyle[i].position;
				divArray[i].style.margin = backStyle[i].margin;
				divArray[i].style.padding = backStyle[i].padding;
				divArray[i].style.background = backStyle[i].background;
			} else {
				divArray[i].style.display = backStyle[i];
			}
		}
	}
	player.style.width = playerStyle.width;
	player.style.height = playerStyle.height;
	player.style.position = playerStyle.position;
	player.style.margin = playerStyle.margin;
	player.style.padding = playerStyle.padding;
	player.style.left = playerStyle.left;
	player.parentNode.style.zIndex = playerStyle.zIndex;
	console.log('恢复完成');
}