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所以我有一個問題！ 我想讓下面的圓圈填充不同的顏色「onComplete」，並且如果可以不使用自動播放啓動，而是點擊。 你能請別人幫我嗎？ 主要的想法是，當你點擊它開始倒計時，等待提交您的答案，所以我想圓打開顏色進度條相同的圈子。JS圓形倒計時
<body>
<div id="container">
<div id="countdown"></div>
<script type="text/javascript" charset="utf-8">
$("#countdown").countdown360({
radius : 60,
seconds : 3,
fontColor : '#FFFFFF',
autostart : false,
onComplete : function() { console.log('done') }
}).start()
</script>
</div>
</body>
(function ($, window, document, undefined) {
var pluginName = "countdown360",
defaults = {
radius: 15.5, // radius of arc
strokeStyle: "#477050", // the color of the stroke
strokeWidth: undefined, // the stroke width, dynamically calulated if omitted in options
fillStyle: "#8ac575", // the fill color
fontColor: "#477050", // the font color
fontFamily: "sans-serif", // the font family
fontSize: undefined, // the font size, dynamically calulated if omitted in options
fontWeight: 700, // the font weight
autostart: false, // start the countdown automatically
seconds: 3, // the number of seconds to count down
label: ["second", "seconds"], // the label to use or false if none
startOverAfterAdding: true, // Start the timer over after time is added with addSeconds
onComplete: undefined
};
function Plugin(element, options) {
this.element = element;
this.settings = $.extend({}, defaults, options);
if (!this.settings.fontSize) { this.settings.fontSize = this.settings.radius/1.2; }
if (!this.settings.strokeWidth) { this.settings.strokeWidth = this.settings.radius/4; }
this._defaults = defaults;
this._name = pluginName;
this._init();
}
Plugin.prototype = {
extendTimer: function (value) {
var seconds = parseInt(value),
secondsElapsed = Math.round((new Date().getTime() - this.startedAt.getTime())/1000);
if ((this._secondsLeft(secondsElapsed) + seconds) <= this.settings.seconds) {
this.startedAt.setSeconds(this.startedAt.getSeconds() + parseInt(value));
}
},
addSeconds: function (value) {
var secondsElapsed = Math.round((new Date().getTime() - this.startedAt.getTime())/1000);
if (this.settings.startOverAfterAdding) {
this.settings.seconds = this._secondsLeft(secondsElapsed) + parseInt(value);
this.start();
} else {
this.settings.seconds += parseInt(value);
}
},
start: function() {
this.startedAt = new Date();
this._drawCountdownShape(Math.PI*3.5, true);
this._drawCountdownLabel(0);
this.interval = setInterval(jQuery.proxy(this._draw, this), 1000);
},
stop: function (cb) {
clearInterval(this.interval);
if (cb) { cb(); }
},
_init: function() {
this.settings.width = (this.settings.radius * 2) + (this.settings.strokeWidth * 2);
this.settings.height = this.settings.width;
this.settings.arcX = this.settings.radius + this.settings.strokeWidth;
this.settings.arcY = this.settings.arcX;
this._initPen(this._getCanvas());
if (this.settings.autostart) { this.start(); }
},
_getCanvas: function() {
var $canvas = $("<canvas id=\"countdown360_" + $(this.element).attr("id") + "\" width=\"" +
this.settings.width + "\" height=\"" +
this.settings.height + "\">" +
"<span id=\"countdown-text\" role=\"status\" aria-live=\"assertive\"></span></canvas>");
$(this.element).prepend($canvas[0]);
return $canvas[0];
},
_initPen: function (canvas) {
this.pen = canvas.getContext("2d");
this.pen.lineWidth = this.settings.strokeWidth;
this.pen.strokeStyle = this.settings.strokeStyle;
this.pen.fillStyle = this.settings.fillStyle;
this.pen.textAlign = "center";
this.pen.textBaseline = "middle";
this.ariaText = $(canvas).children("#countdown-text");
this._clearRect();
},
_clearRect: function() {
this.pen.clearRect(0, 0, this.settings.width, this.settings.height);
},
_secondsLeft: function(secondsElapsed) {
return this.settings.seconds - secondsElapsed;
},
_drawCountdownLabel: function (secondsElapsed) {
this.ariaText.text(secondsLeft);
this.pen.font = this.settings.fontWeight + " " + this.settings.fontSize + "px " + this.settings.fontFamily;
var secondsLeft = this._secondsLeft(secondsElapsed),
label = secondsLeft === 1 ? this.settings.label[0] : this.settings.label[1],
drawLabel = this.settings.label && this.settings.label.length === 2,
x = this.settings.width/2;
if (drawLabel) {
y = this.settings.height/2 - (this.settings.fontSize/6.2);
} else {
y = this.settings.height/2;
}
this.pen.fillStyle = this.settings.fillStyle;
this.pen.fillText(secondsLeft + 1, x, y);
this.pen.fillStyle = this.settings.fontColor;
this.pen.fillText(secondsLeft, x, y);
if (drawLabel) {
this.pen.font = "normal small-caps " + (this.settings.fontSize/3) + "px " + this.settings.fontFamily;
this.pen.fillText(label, this.settings.width/2, this.settings.height/2 + (this.settings.fontSize/2.2));
}
},
_drawCountdownShape: function (endAngle, drawStroke) {
this.pen.fillStyle = this.settings.fillStyle;
this.pen.beginPath();
this.pen.arc(this.settings.arcX, this.settings.arcY, this.settings.radius, Math.PI*1.5, endAngle, false);
this.pen.fill();
if (drawStroke) { this.pen.stroke(); }
},
_draw: function() {
var secondsElapsed = Math.round((new Date().getTime() - this.startedAt.getTime())/1000),
endAngle = (Math.PI*3.5) - (((Math.PI*2)/this.settings.seconds) * secondsElapsed);
this._clearRect();
this._drawCountdownShape(Math.PI*3.5, false);
if (secondsElapsed < this.settings.seconds) {
this._drawCountdownShape(endAngle, true);
this._drawCountdownLabel(secondsElapsed);
} else {
this._drawCountdownLabel(this.settings.seconds);
this.stop();
this.settings.onComplete();
}
}
};
$.fn[pluginName] = function (options) {
var plugin;
this.each(function() {
plugin = $.data(this, "plugin_" + pluginName);
if (!plugin) {
plugin = new Plugin(this, options);
$.data(this, "plugin_" + pluginName, plugin);
}
});
return plugin;
};
})(jQuery, window, document);
庫：https://github.com/johnschult/jquery.countdown360/blob/master/src/jquery.countdown360.js的信息 – Hacketo 2015-03-02 22:42:00