<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,height=device-height">
<title>g2 slider</title>
<style>
::-webkit-scrollbar {
display: none;
}
html,
body {
overflow: hidden;
height: 100%;
margin: 0;
}
.m-cf-slider-wrapper{display: inline-block; position: absolute;bottom: 10px;left: 390px;right: 360px;height: 56px;}
.m-cf-slider {display: inline-block;width: 100%;height: 100%;}
</style>
</head>
<body>
<div class="m-cf-slider-wrapper">
<div id="m-cf-slider" class="m-cf-slider"></div>
</div>
<script>
/*Fixing iframe window.innerHeight 0 issue in Safari*/
document.body.clientHeight;
</script>
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>
<script src="https://gw.alipayobjects.com/os/antv/pkg/_antv.g2-3.3.2/dist/g2.min.js"></script>
<script src="https://gw.alipayobjects.com/os/antv/assets/lib/jquery-3.2.1.min.js"></script>
<script src="https://gw.alipayobjects.com/os/antv/pkg/_antv.data-set-0.9.6/dist/data-set.min.js"></script>
<script src="js/g2-plugin-slider.js"></script>
<script>
$(function () {
let myAction = {}, slider, initStart, initEnd = '';
$.extend(myAction, {
formatDateTime: function(inputTime) {
var date = new Date(inputTime);
var y = date.getFullYear();
var m = date.getMonth() + 1;
m = m < 10 ? ('0' + m) : m;
var d = date.getDate();
d = d < 10 ? ('0' + d) : d;
var h = date.getHours();
h = h < 10 ? ('0' + h) : h;
var minute = date.getMinutes();
var second = date.getSeconds();
minute = minute < 10 ? ('0' + minute) : minute;
second = second < 10 ? ('0' + second) : second;
return y + '/' + m + '/' + d + ' ' + h + ':' + minute + ':' + second + ':' + date.getMilliseconds();
},
randomFn: function () {
var num = Math.random() * 30 + 20;
num = parseInt(num, 10);
return num;
},
simulateData: function(division) {
var start = 1540858202123;
var end = 1540958202666;
var space = (end - start) / division;
var result = [];
var temp = {};
var startDate = myAction.formatDateTime(start);
temp.time = startDate;
temp.value = myAction.randomFn();
result.push(temp);
var tempTime = start + space;
while (tempTime < end) {
tempTime = tempTime + space;
var temp = {};
temp.time = myAction.formatDateTime(tempTime);
temp.value = myAction.randomFn();
result.push(temp);
}
var temp = {};
var endDate = myAction.formatDateTime(end);
temp.time = endDate;
temp.value = myAction.randomFn();
result.push(temp);
return result;
},
simulateSlider: function () {
var sliderData = myAction.simulateData(100); //根据日志的起止事件模拟流量数据
var startIndex = Math.round(sliderData.length * 0.6); //默认滑动条已经拖动了百分之多少
if (sliderData && sliderData[startIndex] && sliderData.length > 3) {
initStart = sliderData[startIndex].time;
}
myAction.initSlider(sliderData);
},
initSlider: function (data) {
if (slider) {
slider.destroy(); //清空slider
}
//参考链接： https://antv.alipay.com/zh-cn/g2/3.x/tutorial/how-to-use-slider.html
slider = new Slider({
container: 'm-cf-slider',
height: 56,
padding: [0, 0, 0, 0], //[0, 160, 0, 160]
data: data,
start: initStart,
end: initEnd,
xAxis: 'time',
yAxis: 'value',
fillerStyle: {
fill: '#5AA8D8',
fillOpacity: 0.1
},
backgroundStyle: {
stroke: '#dddddd', //border
fill: '#000000', //背景色
fillOpacity: 0.005,
lineWidth: 0
},
backgroundChart : {
type: [ 'interval' ], // 图表的类型，可以是字符串也可是是数组 line area
color: '#825738',
},
textStyle: {
fill: '#ff0000' //333333
},
onChange: function (obj) {
var temp = obj.startText + obj.endText;
console.log(temp);
}
});
slider.render();
}
});
let init = function () {
myAction.simulateSlider();
}();
});
</script>
</body>
</html>
g2-plugin-slider.js
/* eslint-disable */
//修改的地方注明了 mytest
(function webpackUniversalModuleDefinition(root, factory) {
if(typeof module=== 'object' && typeof module.exports === 'object')
module.exports = factory();
else if(typeof define === 'function' && define.amd)
define([], factory);
else if(typeof exports === 'object')
exports["Slider"] = factory();
else
root["Slider"] = factory();
})(typeof self !== 'undefined' ? self : this, function() {
return /******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {};
/******/
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/
/******/ // Check if module is in cache
/******/ if(installedModules[moduleId]) {
/******/ return installedModules[moduleId].exports;
/******/ }
/******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = {
/******/ i: moduleId,
/******/ l: false,
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ // Flag the module as loaded
/******/ module.l = true;
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/******/
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/
/******/ // define getter function for harmony exports
/******/ __webpack_require__.d = function(exports, name, getter) {
/******/ if(!__webpack_require__.o(exports, name)) {
/******/ Object.defineProperty(exports, name, {
/******/ configurable: false,
/******/ enumerable: true,
/******/ get: getter
/******/ });
/******/ }
/******/ };
/******/
/******/ // getDefaultExport function for compatibility with non-harmony modules
/******/ __webpack_require__.n = function(module) {
/******/ var getter = module && module.__esModule ?
/******/ function getDefault() { return module['default']; } :
/******/ function getModuleExports() { return module; };
/******/ __webpack_require__.d(getter, 'a', getter);
/******/ return getter;
/******/ };
/******/
/******/ // Object.prototype.hasOwnProperty.call
/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ // __webpack_public_path__
/******/ __webpack_require__.p = "";
/******/
/******/ // Load entry module and return exports
/******/ return __webpack_require__(__webpack_require__.s = 0);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, exports, __webpack_require__) {
var Slider = __webpack_require__(1);
if (window && !window.G2) {
console.err('Please load the G2 script first!');
}
module.exports = Slider;
/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
/**
* @fileOverview G2's plugin for datazoom.
* @author sima.zhang
*/
var G2 = window && window.G2;
var Chart = G2.Chart,
Util = G2.Util,
G = G2.G,
Global = G2.Global;
var Canvas = G.Canvas,
DomUtil = G2.DomUtil;
var Range = __webpack_require__(2);
var Slider = function () {
Slider.prototype._initProps = function _initProps() {
this.height = 26;
this.width = 'auto'; // 默认自适应
this.padding = Global.plotCfg.padding;
this.container = null;
this.xAxis = null;
this.yAxis = null;
// 选中区域的样式
this.fillerStyle = {
fill: '#BDCCED',
fillOpacity: 0.3
};
// 滑动条背景样式
this.backgroundStyle = {
stroke: '#CCD6EC',
fill: '#CCD6EC',
fillOpacity: 0.3,
lineWidth: 1
};
this.range = [0, 100];
this.layout = 'horizontal';
// 文本颜色
this.textStyle = {
fill: '#545454'
};
// 滑块的样式
this.handleStyle = {
img: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAABCCAYAAABuOUe8AAAABGdBTUEAALGPC/xhBQAAAQtJREFUSA1jYEADyzce+w/CaMIMTOgCuPijCnGFDFh8NHjoHDyMIPvWbjsh8+vPvy6G/wwOQK4kSAwInjMwMhxgY2EqC/ayeMIIUvT7z/+L////F4LIo5KMjIzvWFkY9VmgJmFVBNICMuDXn/9dTFDrUI1B5wGdBEoUMDehSyPzJUlPPcZ6KgwgDAPofBaYhKgwP4wJptH5pFuNYhwWzqiJWAIFITQygweeHl+//YgICyALnc+IrZZC0QHlkBSOz7GZgCb2nAlUbKAJYnKBaphAZQuo2MCUhYiA5EBqmEAFEKhsAZq8HCiF7AxQIbUcJAdSg2HQaH2NHCQkxTWyRpzsURNxBg1IgvrBAwC71Eh1LbC3jwAAAABJRU5ErkJggg==',
//img: 'https://gw.alipayobjects.com/zos/rmsportal/QXtfhORGlDuRvLXFzpsQ.png',
width: 5
};
// 背景图表的配置，如果为 false 则表示不渲染
this.backgroundChart = {
type: ['area'], // 图表的类型，可以是字符串也可是是数组
color: '#CCD6EC'
};
};
function Slider(cfg) {
_classCallCheck(this, Slider);
this._initProps();
Util.deepMix(this, cfg);
var container = this.container;
if (!container) {
throw new Error('Please specify the container for the Slider!');
}
if (Util.isString(container)) {
this.domContainer = document.getElementById(container);
} else {
this.domContainer = container;
}
this.handleStyle = Util.mix({
width: this.height,
height: this.height
}, this.handleStyle);
if (this.width === 'auto') {
// 宽度自适应
window.addEventListener('resize', Util.wrapBehavior(this, '_initForceFitEvent'));
}
}
Slider.prototype._initForceFitEvent = function _initForceFitEvent() {
var timer = setTimeout(Util.wrapBehavior(this, 'forceFit'), 200);
clearTimeout(this.resizeTimer);
this.resizeTimer = timer;
};
Slider.prototype.forceFit = function forceFit() {
if (!this || this.destroyed) {
return;
}
var width = DomUtil.getWidth(this.domContainer);
var height = this.height;
if (width !== this.domWidth) {
var canvas = this.canvas;
canvas.changeSize(width, height); // 改变画布尺寸
this.bgChart && this.bgChart.changeWidth(width);
canvas.clear();
this._initWidth();
this._initSlider(); // 初始化滑动条
this._bindEvent();
canvas.draw();
}
};
Slider.prototype._initWidth = function _initWidth() {
var width = void 0;
if (this.width === 'auto') {
width = DomUtil.getWidth(this.domContainer);
} else {
width = this.width;
}
this.domWidth = width;
var padding = Util.toAllPadding(this.padding);
if (this.layout === 'horizontal') {
this.plotWidth = width - padding[1] - padding[3];
this.plotPadding = padding[3];
this.plotHeight = this.height;
} else if (this.layout === 'vertical') {
this.plotWidth = this.width;
this.plotHeight = this.height - padding[0] - padding[2];
this.plotPadding = padding[0];
}
};
Slider.prototype.render = function render() {
this._initWidth();
this._initCanvas(); // 初始化 canvas
this._initBackground(); // 初始化背景图表
this._initSlider(); // 初始化滑动条
this._bindEvent();
this.canvas.draw();
};
Slider.prototype.changeData = function changeData(data) {
this.data = data;
this.repaint();
};
Slider.prototype.destroy = function destroy() {
clearTimeout(this.resizeTimer);
var rangeElement = this.rangeElement;
rangeElement.off('sliderchange');
this.bgChart && this.bgChart.destroy();
this.canvas.destroy();
var container = this.domContainer;
while (container.hasChildNodes()) {
container.removeChild(container.firstChild);
}
window.removeEventListener('resize', Util.getWrapBehavior(this, '_initForceFitEvent'));
this.destroyed = true;
};
Slider.prototype.clear = function clear() {
this.canvas.clear();
this.bgChart && this.bgChart.destroy();
this.bgChart = null;
this.scale = null;
this.canvas.draw();
};
Slider.prototype.repaint = function repaint() {
this.clear();
this.render();
};
Slider.prototype._initCanvas = function _initCanvas() {
var width = this.domWidth;
var height = this.height;
var canvas = new Canvas({
width: width,
height: height,
containerDOM: this.domContainer,
capture: false
});
var node = canvas.get('el');
node.style.position = 'absolute';
node.style.top = 0;
node.style.left = 0;
node.style.zIndex = 3;
this.canvas = canvas;
};
Slider.prototype._initBackground = function _initBackground() {
var _Util$deepMix;
var data = this.data;
var xAxis = this.xAxis;
var yAxis = this.yAxis;
var scales = Util.deepMix((_Util$deepMix = {}, _Util$deepMix['' + xAxis] = {
range: [0, 1]
}, _Util$deepMix), this.scales); // 用户列定义
if (!data) {
// 没有数据，则不创建
throw new Error('Please specify the data!');
}
if (!xAxis) {
throw new Error('Please specify the xAxis!');
}
if (!yAxis) {
throw new Error('Please specify the yAxis!');
}
var backgroundChart = this.backgroundChart;
var type = backgroundChart.type;
var color = backgroundChart.color;
var lineColor = backgroundChart.lineColor;
var opacity = backgroundChart.opacity || 1;
var lineOpacity = backgroundChart.lineOpacity || 1;
if (!Util.isArray(type)) {
type = [type];
}
var padding = Util.toAllPadding(this.padding);
var bgChart = new Chart({
container: this.container,
width: this.domWidth,
height: this.height,
padding: [0, padding[1], 0, padding[3]],
animate: false
});
bgChart.source(data);
bgChart.scale(scales);
bgChart.axis(false);
bgChart.tooltip(false);
bgChart.legend(false);
Util.each(type, function (eachType) {
if (eachType === 'line') {
bgChart[eachType]().position(xAxis + '*' + yAxis).color(lineColor).opacity(lineOpacity);
} else {
bgChart[eachType]().position(xAxis + '*' + yAxis).color(color).opacity(opacity);
}
});
bgChart.render();
this.bgChart = bgChart;
this.scale = this.layout === 'horizontal' ? bgChart.getXScale() : bgChart.getYScales()[0];
if (this.layout === 'vertical') {
bgChart.destroy();
}
};
Slider.prototype._initRange = function _initRange() {
var start = this.start;
var end = this.end;
var scale = this.scale;
var min = 0;
var max = 1;
if (start) {
min = scale.scale(scale.translate(start));
}
if (end) {
max = scale.scale(scale.translate(end));
}
var minSpan = this.minSpan,
maxSpan = this.maxSpan;
var totalSpan = 0;
if (scale.type === 'time' || scale.type === 'timeCat') {
// 时间类型已排序
var values = scale.values;
var firstValue = values[0];
var lastValue = values[values.length - 1];
totalSpan = lastValue - firstValue;
} else if (scale.isLinear) {
totalSpan = scale.max - scale.min;
}
if (totalSpan && minSpan) {
this.minRange = minSpan / totalSpan * 100;
}
if (totalSpan && maxSpan) {
this.maxRange = maxSpan / totalSpan * 100;
}
var range = [min * 100, max * 100];
this.range = range;
return range;
};
Slider.prototype._getHandleValue = function _getHandleValue(type) {
var value = void 0;
var range = this.range;
var min = range[0] / 100;
var max = range[1] / 100;
var scale = this.scale;
if (type === 'min') {
value = this.start ? this.start : scale.invert(min);
} else {
value = this.end ? this.end : scale.invert(max);
}
return value;
};
Slider.prototype._initSlider = function _initSlider() {
var canvas = this.canvas;
var range = this._initRange();
var scale = this.scale;
var rangeElement = canvas.addGroup(Range, {
middleAttr: this.fillerStyle,
range: range,
minRange: this.minRange,
maxRange: this.maxRange,
layout: this.layout,
width: this.plotWidth,
height: this.plotHeight,
backgroundStyle: this.backgroundStyle,
textStyle: this.textStyle,
handleStyle: this.handleStyle,
minText: scale.getText(this._getHandleValue('min')),
maxText: scale.getText(this._getHandleValue('max'))
});
if (this.layout === 'horizontal') {
rangeElement.translate(this.plotPadding, 0);
} else if (this.layout === 'vertical') {
rangeElement.translate(0, this.plotPadding);
}
this.rangeElement = rangeElement;
};
Slider.prototype._bindEvent = function _bindEvent() {
var self = this;
var rangeElement = self.rangeElement;
rangeElement.on('sliderchange', function (ev) {
var range = ev.range;
var minRatio = range[0] / 100;
var maxRatio = range[1] / 100;
self._updateElement(minRatio, maxRatio, ev.type); //mytest
});
};
Slider.prototype._updateElement = function _updateElement(minRatio, maxRatio, type) {
var scale = this.scale;
var rangeElement = this.rangeElement;
var minTextElement = rangeElement.get('minTextElement');
var maxTextElement = rangeElement.get('maxTextElement');
var min = scale.invert(minRatio);
var max = scale.invert(maxRatio);
var minText = scale.getText(min);
var maxText = scale.getText(max);
minTextElement.attr('text', minText); //minText mytest
maxTextElement.attr('text', maxText);
if (this.domWidth * minRatio > 200) {
minTextElement.attr('textAlign', 'end');
minTextElement.attr('x', -7.5);
} else {
minTextElement.attr('textAlign', 'start');
minTextElement.attr('x', 7.5);
}
if (this.domWidth * (1 - maxRatio) > 200) {
maxTextElement.attr('textAlign', 'start');
maxTextElement.attr('x', 7.5);
} else {
maxTextElement.attr('textAlign', 'end');
maxTextElement.attr('x', -7.5);
}
if (this.domWidth * (maxRatio - minRatio) < 200) {
if (minTextElement.attr('textAlign') === maxTextElement.attr('textAlign')) {
minTextElement.attr('y', this.height / 2 - 10);
maxTextElement.attr('y', this.height / 2 + 10);
} else {
minTextElement.attr('y', this.height / 2);
maxTextElement.attr('y', this.height / 2);
}
} else {
minTextElement.attr('y', this.height / 2);
maxTextElement.attr('y', this.height / 2);
}
this.start = minText;
this.end = maxText;
if (this.onChange && type === 'mouseup') { //mytest
this.onChange({
startText: minText,
endText: maxText,
startValue: min,
endValue: max
});
}
};
return Slider;
}();
module.exports = Slider;
/***/ }),
/* 2 */
/***/ (function(module, exports) {
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
/**
* @fileOverview The class of slider
* @author sima.zhang
*/
var G2 = window && window.G2;
var Util = G2.Util,
G = G2.G;
var Group = G.Group,
DomUtil = G.DomUtil;
var OFFSET = 5;
var Range = function (_Group) {
_inherits(Range, _Group);
function Range() {
_classCallCheck(this, Range);
return _possibleConstructorReturn(this, _Group.apply(this, arguments));
}
Range.prototype.getDefaultCfg = function getDefaultCfg() {
return {
/**
* 范围
* @type {Array}
*/
range: null,
/**
* 中滑块属性
* @type {ATTRS}
*/
middleAttr: null,
/**
* 背景
* @type {G-Element}
*/
backgroundElement: null,
/**
* 下滑块
* @type {G-Element}
*/
minHandleElement: null,
/**
* 上滑块
* @type {G-Element}
*/
maxHandleElement: null,
/**
* 中块
* @type {G-Element}
*/
middleHandleElement: null,
/**
* 当前的激活的元素
* @type {G-Element}
*/
currentTarget: null,
/**
* 布局方式： horizontal，vertical
* @type {String}
*/
layout: 'vertical',
/**
* 宽
* @type {Number}
*/
width: null,
/**
* 高
* @type {Number}
*/
height: null,
/**
* 当前的PageX
* @type {Number}
*/
pageX: null,
/**
* 当前的PageY
* @type {Number}
*/
pageY: null
};
};
Range.prototype._initHandle = function _initHandle(type) {
var handle = this.addGroup();
var layout = this.get('layout');
var handleStyle = this.get('handleStyle');
var img = handleStyle.img;
var iconWidth = handleStyle.width;
var iconHeight = handleStyle.height;
var text = void 0;
var handleIcon = void 0;
var triggerCursor = void 0;
if (layout === 'horizontal') {
var _iconWidth = handleStyle.width;
triggerCursor = 'ew-resize';
handleIcon = handle.addShape('Image', {
attrs: {
x: -_iconWidth / 2,
y: 0,
width: _iconWidth,
height: iconHeight,
img: img,
cursor: triggerCursor
}
});
text = handle.addShape('Text', {
attrs: Util.mix({
//x: type === 'min' ? -(_iconWidth / 2 + OFFSET) : _iconWidth / 2 + OFFSET,
x: type === 'max' ? -(_iconWidth / 2 + OFFSET) : -(_iconWidth / 2 + OFFSET), //mytest
y: iconHeight / 2,
//textAlign: type === 'min' ? 'end' : 'start',
textAlign: type === 'max' ? 'end' : 'end', //mytest
textBaseline: 'middle',
text: type === 'min' ? this.get('minText') : this.get('maxText'),
//cursor: triggerCursor //mytest
}, this.get('textStyle'))
});
} else {
triggerCursor = 'ns-resize';
handleIcon = handle.addShape('Image', {
attrs: {
x: 0,
y: -iconHeight / 2,
width: iconWidth,
height: iconHeight,
img: img,
cursor: triggerCursor
}
});
text = handle.addShape('Text', {
attrs: Util.mix({
x: iconWidth / 2,
y: type === 'min' ? iconHeight / 2 + OFFSET : -(iconHeight / 2 + OFFSET),
textAlign: 'center',
textBaseline: 'middle',
text: type === 'min' ? this.get('minText') : this.get('maxText'),
cursor: triggerCursor
}, this.get('textStyle'))
});
}
this.set(type + 'TextElement', text);
this.set(type + 'IconElement', handleIcon);
return handle;
};
Range.prototype._initSliderBackground = function _initSliderBackground() {
var backgroundElement = this.addGroup();
backgroundElement.initTransform();
backgroundElement.translate(0, 0);
backgroundElement.addShape('Rect', {
attrs: Util.mix({
x: 0,
y: 0,
width: this.get('width'),
height: this.get('height')
}, this.get('backgroundStyle'))
});
return backgroundElement;
};
Range.prototype._beforeRenderUI = function _beforeRenderUI() {
var backgroundElement = this._initSliderBackground();
var minHandleElement = this._initHandle('min');
var maxHandleElement = this._initHandle('max');
var middleHandleElement = this.addShape('rect', {
attrs: this.get('middleAttr')
});
this.set('middleHandleElement', middleHandleElement);
this.set('minHandleElement', minHandleElement);
this.set('maxHandleElement', maxHandleElement);
this.set('backgroundElement', backgroundElement);
backgroundElement.set('zIndex', 0);
middleHandleElement.set('zIndex', 1);
minHandleElement.set('zIndex', 2);
maxHandleElement.set('zIndex', 2);
middleHandleElement.attr('cursor', 'move');
this.sort();
};
Range.prototype._renderUI = function _renderUI() {
if (this.get('layout') === 'horizontal') {
this._renderHorizontal();
} else {
this._renderVertical();
}
};
Range.prototype._transform = function _transform(layout) {
var range = this.get('range');
var minRatio = range[0] / 100;
var maxRatio = range[1] / 100;
var width = this.get('width');
var height = this.get('height');
var minHandleElement = this.get('minHandleElement');
var maxHandleElement = this.get('maxHandleElement');
var middleHandleElement = this.get('middleHandleElement');
if (minHandleElement.resetMatrix) {
minHandleElement.resetMatrix();
maxHandleElement.resetMatrix();
} else {
minHandleElement.initTransform();
maxHandleElement.initTransform();
}
if (layout === 'horizontal') {
middleHandleElement.attr({
x: width * minRatio,
y: 0,
width: (maxRatio - minRatio) * width,
height: height
});
minHandleElement.translate(minRatio * width, 0); //mytest
maxHandleElement.translate(maxRatio * width, 0);
} else {
middleHandleElement.attr({
x: 0,
y: height * (1 - maxRatio),
width: width,
height: (maxRatio - minRatio) * height
});
minHandleElement.translate(0, (1 - minRatio) * height);
maxHandleElement.translate(0, (1 - maxRatio) * height);
}
};
Range.prototype._renderHorizontal = function _renderHorizontal() {
this._transform('horizontal');
};
Range.prototype._renderVertical = function _renderVertical() {
this._transform('vertical');
};
Range.prototype._bindUI = function _bindUI() {
this.on('mousedown', Util.wrapBehavior(this, '_onMouseDown'));
};
Range.prototype._isElement = function _isElement(target, name) {
// 判断是否是该元素
var element = this.get(name);
if (target === element) {
return true;
}
if (element.isGroup) {
var elementChildren = element.get('children');
return elementChildren.indexOf(target) > -1;
}
return false;
};
Range.prototype._getRange = function _getRange(diff, range) {
var rst = diff + range;
rst = rst > 100 ? 100 : rst;
rst = rst < 0 ? 0 : rst;
return rst;
};
Range.prototype._limitRange = function _limitRange(diff, limit, range) {
range[0] = this._getRange(diff, range[0]);
range[1] = range[0] + limit;
if (range[1] > 100) {
range[1] = 100;
range[0] = range[1] - limit;
}
};
Range.prototype._updateStatus = function _updateStatus(dim, ev, type) {
var totalLength = dim === 'x' ? this.get('width') : this.get('height');
dim = Util.upperFirst(dim);
var range = this.get('range');
var page = this.get('page' + dim);
var currentTarget = this.get('currentTarget');
var rangeStash = this.get('rangeStash');
var layout = this.get('layout');
var sign = layout === 'vertical' ? -1 : 1;
var currentPage = ev['page' + dim];
var diffPage = currentPage - page;
var diffRange = diffPage / totalLength * 100 * sign;
var diffStashRange = void 0;
var minRange = this.get('minRange');
var maxRange = this.get('maxRange');
if (currentTarget.__cfg && currentTarget.__cfg.type === 'Text') { //mytest, 禁止拖动文本
return;
}
if (range[1] <= range[0]) {
if (this._isElement(currentTarget, 'minHandleElement') || this._isElement(currentTarget, 'maxHandleElement')) {
range[0] = this._getRange(diffRange, range[0]);
range[1] = this._getRange(diffRange, range[0]);
}
} else {
if (this._isElement(currentTarget, 'minHandleElement')) {
range[0] = this._getRange(diffRange, range[0]);
if (minRange) {
// 设置了最小范围
if (range[1] - range[0] <= minRange) {
this._limitRange(diffRange, minRange, range);
}
}
if (maxRange) {
// 设置了最大范围
if (range[1] - range[0] >= maxRange) {
this._limitRange(diffRange, maxRange, range);
}
}
}
if (this._isElement(currentTarget, 'maxHandleElement')) {
range[1] = this._getRange(diffRange, range[1]);
if (minRange) {
// 设置了最小范围
if (range[1] - range[0] <= minRange) {
this._limitRange(diffRange, minRange, range);
}
}
if (maxRange) {
// 设置了最大范围
if (range[1] - range[0] >= maxRange) {
this._limitRange(diffRange, maxRange, range);
}
}
}
}
if (this._isElement(currentTarget, 'middleHandleElement')) {
diffStashRange = rangeStash[1] - rangeStash[0];
this._limitRange(diffRange, diffStashRange, range);
}
//mytest
this.emit('sliderchange', {
range: range,
type : type
});
this.set('page' + dim, currentPage);
this._renderUI();
this.get('canvas').draw(); // need delete
return;
};
Range.prototype._onMouseDown = function _onMouseDown(ev) {
var currentTarget = ev.currentTarget;
var originEvent = ev.event;
var range = this.get('range');
originEvent.stopPropagation();
originEvent.preventDefault();
this.set('pageX', originEvent.pageX);
this.set('pageY', originEvent.pageY);
this.set('currentTarget', currentTarget);
this.set('rangeStash', [range[0], range[1]]);
this._bindCanvasEvents();
};
Range.prototype._bindCanvasEvents = function _bindCanvasEvents() {
var DomUtil = G2.DomUtil;
var containerDOM = this.get('canvas').get('containerDOM');
this.onMouseMoveListener = DomUtil.addEventListener(containerDOM, 'mousemove', Util.wrapBehavior(this, '_onCanvasMouseMove'));
this.onMouseUpListener = DomUtil.addEventListener(containerDOM, 'mouseup', Util.wrapBehavior(this, '_onCanvasMouseUp'));
// @2018-06-06 by blue.lb 添加mouseleave事件监听，让用户在操作出滑块区域后有一个“正常”的效果，可以正常重新触发滑块的操作流程
this.onMouseLeaveListener = DomUtil.addEventListener(containerDOM, 'mouseleave', Util.wrapBehavior(this, '_onCanvasMouseUp'));
};
Range.prototype._onCanvasMouseMove = function _onCanvasMouseMove(ev) {
var layout = this.get('layout');
if (layout === 'horizontal') {
this._updateStatus('x', ev, 'mousemove'); //mytest
} else {
this._updateStatus('y', ev);
}
};
Range.prototype._onCanvasMouseUp = function _onCanvasMouseUp(ev) {
this._removeDocumentEvents();
//mytest
var layout = this.get('layout');
if (layout === 'horizontal') {
this._updateStatus('x', ev, 'mouseup'); //mytest
} else {
this._updateStatus('y', ev);
}
};
Range.prototype._removeDocumentEvents = function _removeDocumentEvents() {
this.onMouseMoveListener.remove();
this.onMouseUpListener.remove();
this.onMouseLeaveListener.remove();
};
return Range;
}(Group);
module.exports = Range;
/***/ })
/******/ ]);
});
来源：https://www.cnblogs.com/xutongbao/p/10003206.html