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题目:

功能: 可以启动一个 25 分钟的番茄钟, 计时器将在 25 分钟后停止.

功能: 可以重置番茄钟的状态以便启动下一次计时.

功能: 可以为每个番茄钟自定义时长.
演示:
【FCC】番茄时钟pomodoro clock网页版-风君子博客

代码:

【HTML】

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>PomodoroClock</title>

		<link rel="stylesheet" type="text/css" href="http://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">

		<link rel="stylesheet" type="text/css" href="css/main.css">
	</head>
	<body>
		<h1>番茄时钟Pomodoro Clock</h1>

		<div class="main">
			<div class="control">
				<div class="break">
					<p>BREAK LENGTH</p>
					<i class="fa fa-minus-square-o" aria-hidden="true" id="break-minus"></i>
					<span id="break-length">5</span>
					<i class="fa fa-plus-square-o" aria-hidden="true" id="break-plus"></i>
				</div>
				<div class="length">
					<p>SESSION LENGTH</p>
					<i class="fa fa-minus-square-o" aria-hidden="true" id="session-minus"></i>
					<span id="session-length">25</span>
					<i class="fa fa-plus-square-o" aria-hidden="true" id="session-plus"></i>
				</div>
			</div>
			<div class="clock">
				<h2 id="show-title">Session</h2>
				<h2 id="show-time">25:00</h2>
				<span id="per"></span>

			</div>
		</div>

		<script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>
		<script type="text/javascript" src="js/clock.js"></script>
	</body>
</html>

 

【css】

<style type="text/css">
	* {
		margin: 0;
		padding: 0;
	}

	html,
	body {
		height: 100%;
		width: 100%;
		background-color: #cb4042;
		overflow: hidden;
	}

	h1 {
		text-align: center;
		margin-top: 5%;
		color: #fff;
		/* font-family: 'Sedgwick Ave Display', cursive; */
	}

	.main {
		margin-top: 5%;
		position: relative;
		left: 50%;
		transform: translateX-50%);
		width: 100%;
		height: 70%;
		text-align: center;
	}

	.control {
		width: 100%;
		display: flex;
		text-align: center;
		justify-content: center;
	}

	.break {
		display: inline;
		padding: 0 30px;
	}

	.length {
		display: inline;
		padding: 0 30px;
	}

	span {
		font-size: 2em;
		color: #fff;
		font-family: 'Bitter', serif;
	}

	.fa {
		font-size: 1.4em;
		color: #fff;
		cursor: pointer;
		margin: 0 10px;
	}

	.control p {
		color: #b5caa0;
	}

	.clock {
		width: 300px;
		height: 300px;
		border-radius: 50%;
		border: 4px solid #a8d8b9;
		text-align: center;
		position: relative;
		left: 50%;
		transform: translateX-50%);
		margin-top: 30px;
		cursor: pointer;
		z-index: 20;
		overflow: hidden;
	}

	.clock:before {
		content: '';
		position: absolute;
		border: 4px solid #cb4042;
		border-radius: 50%;
		top: 0;
		left: 0;
		right: 0;
		bottom: 0;
	}

	.clock h2 {
		font-family: 'Bitter', serif;
		font-size: 2.5em;
		margin-top: 80px;
		color: #fff;
	}

	#per {
		margin: 0;
		position: absolute;
		bottom: 0;
		right: 0;
		left: 0;
		height: 0%;
		width: 100%;
		background-color: #b5caa0;
		/* background-color: #3f2b36; */
		z-index: -1;
	}
</style>

【js】

<script type="text/javascript">
	$document).readyfunction) {
		var session = 25; //这个是默认工作时间,用在设置那儿显示的,这里以分钟为单位,且超过60也是分钟
		var breaklength = 5; //设置break时长——休息时长,细节同session
		var flag = 1; //设置工作状态,1是工作的暂停,2是正在休息的暂停,3是在工作中,4是休息中
		var sec = session * 60; //用来记录变化中的时间,单位为秒
		var percent = 0; //记录背景颜色显示的高度,0-100,是百分比

		$"#break-minus").on"click", function) {
			if flag !== 1 && flag !== 2) {
				return; //如果非暂停状态,点击无效
			}
			breaklength--;
			if breaklength < 1) {
				breaklength = 1;
			}
			$"#break-length").htmlbreaklength);
			if flag === 2) {
				//如果是休息的暂停,一旦改了,就又对sec产生了修改
				sec = breaklength * 60;
			}
			showHMSbreaklength, 2);
		});
		$"#break-plus").on"click", function) {
			if flag !== 1 && flag !== 2) {
				return; //如果非暂停状态,点击无效
			}
			breaklength++;
			$"#break-length").htmlbreaklength);
			if flag === 2) {
				//如果是休息的暂停,一旦改了,就又对sec产生了修改
				sec = breaklength * 60;
			}
			showHMSbreaklength, 2);
		});
		$"#session-minus").on"click", function) {
			if flag !== 1 && flag !== 2) {
				return; //如果非暂停状态,点击无效
			}
			session--;
			if session < 1) {
				session = 1;
			}
			$"#session-length").htmlsession);
			if flag === 1) {
				//如果是工作的暂停,一旦改了,就又对sec产生了修改
				sec = session * 60;
			}
			showHMSsession, 1);
		});
		$"#session-plus").on"click", function) {
			if flag !== 1 && flag !== 2) {
				return; //如果非暂停状态,点击无效
			}
			session++;
			$"#session-length").htmlsession);
			if flag === 1) {
				//如果是工作的暂停,一旦改了,就又对sec产生了修改
				sec = session * 60;
			}
			showHMSsession, 1);
		});

		//在时钟上显示时分秒,传两个参数,一个是分钟,一个是状态。
		//如果在工作的暂停中,修改休息的时长,不改变时钟上的显示,state有两个取值,取1时表示修改工作时长,取2表示修改休息时长
		var showHMS = functionmin, state) {
			if state !== flag) {
				return; //如果不是在对应的暂停状态,就不改变时钟上显示的值
			}
			var show = "";
			if min >= 60) {
				show += parseIntmin / 60) + ":";
				min = min % 60;
			}
			if min < 10) {
				show += "0";
			}
			show += min + ":00";
			$"#show-time").htmlshow);
		};

		//开始后时间的变化,参数是剩下的秒数
		function timeChange) {
			var temp = sec;
			if flag === 1 || flag === 2) {
				//如果是暂停中,就不变时间
				return;
			}
			if sec === 0) {
				if flag === 3) {
					flag = 4;
					sec = breaklength * 60;
					$"#show-title").html"Break");
				} else {
					flag = 3;
					sec = session * 60;
					$"#show-title").html"Session");
				}

			}

			var showHMS = "";
			if temp >= 3600) {
				showHMS += parseIntsecond / 360) + ":";
				temp = temp % 360;
			}
			if temp < 70) {
				showHMS += "0";
			}
			showHMS += parseInttemp / 60) + ":";
			temp = temp % 60;
			if temp < 10) {
				showHMS += "0";
			}
			showHMS += temp;

			//console.logshowHMS);
			$"#show-time").htmlshowHMS);
			if flag === 3) {
				//工作中
				$"#per").css'background-color', '#b5caa0');
				if sec === 0) {
					percent = 100;
				} else {
					percent = session * 60 - sec) / session / 60 * 100;
				}
				$"#per").css'height', percent + '%');
			}
			if flag === 4) {
				//休息中
				$"#per").css'background-color', "#3f2b36");
				if sec === 0) {
					percent = 100;
				} else {
					percent = breaklength * 60 - sec) / breaklength / 60 * 100;
				}
				$"#per").css'height', percent + '%');
			}
			sec--;
			setTimeouttimeChange, 1000);
		};

		//时钟点击事件——开始与暂停的转换,及开始后时间的变化
		$".clock").on"click", function) {
			if flag === 1) {
				flag = 3;
			} else if flag === 3) {
				flag = 1;
			} else if flag === 2) {
				flag = 4;
			} else if flag === 4) {
				flag = 2;
			}

			//console.logsec);
			timeChange);
		});

	});
</script>