/*!
* ECharts, a javascript interactive chart library.
*
* Copyright (c) 2015, Baidu Inc.
* All rights reserved.
*
* LICENSE
* https://github.com/ecomfe/echarts/blob/master/LICENSE.txt
*/
/**
* @module echarts
*/
define(function (require) {
var GlobalModel = require('./model/Global');
var ExtensionAPI = require('./ExtensionAPI');
var CoordinateSystemManager = require('./CoordinateSystem');
var OptionManager = require('./model/OptionManager');
var ComponentModel = require('./model/Component');
var SeriesModel = require('./model/Series');
var ComponentView = require('./view/Component');
var ChartView = require('./view/Chart');
var graphic = require('./util/graphic');
var zrender = require('zrender');
var zrUtil = require('zrender/core/util');
var colorTool = require('zrender/tool/color');
var env = require('zrender/core/env');
var Eventful = require('zrender/mixin/Eventful');
var each = zrUtil.each;
var VISUAL_CODING_STAGES = ['echarts', 'chart', 'component'];
// TODO Transform first or filter first
var PROCESSOR_STAGES = ['transform', 'filter', 'statistic'];
function createRegisterEventWithLowercaseName(method) {
return function (eventName, handler, context) {
// Event name is all lowercase
eventName = eventName && eventName.toLowerCase();
Eventful.prototype[method].call(this, eventName, handler, context);
};
}
/**
* @module echarts~MessageCenter
*/
function MessageCenter() {
Eventful.call(this);
}
MessageCenter.prototype.on = createRegisterEventWithLowercaseName('on');
MessageCenter.prototype.off = createRegisterEventWithLowercaseName('off');
MessageCenter.prototype.one = createRegisterEventWithLowercaseName('one');
zrUtil.mixin(MessageCenter, Eventful);
/**
* @module echarts~ECharts
*/
function ECharts (dom, theme, opts) {
opts = opts || {};
// Get theme by name
if (typeof theme === 'string') {
theme = themeStorage[theme];
}
if (theme) {
each(optionPreprocessorFuncs, function (preProcess) {
preProcess(theme);
});
}
/**
* @type {string}
*/
this.id;
/**
* Group id
* @type {string}
*/
this.group;
/**
* @type {HTMLDomElement}
* @private
*/
this._dom = dom;
/**
* @type {module:zrender/ZRender}
* @private
*/
this._zr = zrender.init(dom, {
renderer: opts.renderer || 'canvas',
devicePixelRatio: opts.devicePixelRatio
});
/**
* @type {Object}
* @private
*/
this._theme = zrUtil.clone(theme);
/**
* @type {Array.<module:echarts/view/Chart>}
* @private
*/
this._chartsViews = [];
/**
* @type {Object.<string, module:echarts/view/Chart>}
* @private
*/
this._chartsMap = {};
/**
* @type {Array.<module:echarts/view/Component>}
* @private
*/
this._componentsViews = [];
/**
* @type {Object.<string, module:echarts/view/Component>}
* @private
*/
this._componentsMap = {};
/**
* @type {module:echarts/ExtensionAPI}
* @private
*/
this._api = new ExtensionAPI(this);
/**
* @type {module:echarts/CoordinateSystem}
* @private
*/
this._coordSysMgr = new CoordinateSystemManager();
Eventful.call(this);
/**
* @type {module:echarts~MessageCenter}
* @private
*/
this._messageCenter = new MessageCenter();
// Init mouse events
this._initEvents();
// In case some people write `window.onresize = chart.resize`
this.resize = zrUtil.bind(this.resize, this);
}
var echartsProto = ECharts.prototype;
/**
* @return {HTMLDomElement}
*/
echartsProto.getDom = function () {
return this._dom;
};
/**
* @return {module:zrender~ZRender}
*/
echartsProto.getZr = function () {
return this._zr;
};
/**
* @param {Object} option
* @param {boolean} notMerge
* @param {boolean} [notRefreshImmediately=false] Useful when setOption frequently.
*/
echartsProto.setOption = function (option, notMerge, notRefreshImmediately) {
if (!this._model || notMerge) {
this._model = new GlobalModel(
null, null, this._theme, new OptionManager(this._api)
);
}
this._model.setOption(option, optionPreprocessorFuncs);
updateMethods.prepareAndUpdate.call(this);
!notRefreshImmediately && this._zr.refreshImmediately();
};
/**
* @DEPRECATED
*/
echartsProto.setTheme = function () {
console.log('ECharts#setTheme() is DEPRECATED in ECharts 3.0');
};
/**
* @return {module:echarts/model/Global}
*/
echartsProto.getModel = function () {
return this._model;
};
/**
* @return {Object}
*/
echartsProto.getOption = function () {
return this._model.getOption();
};
/**
* @return {number}
*/
echartsProto.getWidth = function () {
return this._zr.getWidth();
};
/**
* @return {number}
*/
echartsProto.getHeight = function () {
return this._zr.getHeight();
};
/**
* Get canvas which has all thing rendered
* @param {Object} opts
* @param {string} [opts.backgroundColor]
*/
echartsProto.getRenderedCanvas = function (opts) {
if (!env.canvasSupported) {
return;
}
opts = opts || {};
opts.pixelRatio = opts.pixelRatio || 1;
opts.backgroundColor = opts.backgroundColor
|| this._model.get('backgroundColor');
var zr = this._zr;
var list = zr.storage.getDisplayList();
// Stop animations
zrUtil.each(list, function (el) {
el.stopAnimation(true);
});
return zr.painter.getRenderedCanvas(opts);
};
/**
* @return {string}
* @param {Object} opts
* @param {string} [opts.type='png']
* @param {string} [opts.pixelRatio=1]
* @param {string} [opts.backgroundColor]
*/
echartsProto.getDataURL = function (opts) {
opts = opts || {};
var excludeComponents = opts.excludeComponents;
var ecModel = this._model;
var excludesComponentViews = [];
var self = this;
each(excludeComponents, function (componentType) {
ecModel.eachComponent({
mainType: componentType
}, function (component) {
var view = self._componentsMap[component.__viewId];
if (!view.group.ignore) {
excludesComponentViews.push(view);
view.group.ignore = true;
}
});
});
var url = this.getRenderedCanvas(opts).toDataURL(
'image/' + (opts && opts.type || 'png')
);
each(excludesComponentViews, function (view) {
view.group.ignore = false;
});
return url;
};
/**
* @return {string}
* @param {Object} opts
* @param {string} [opts.type='png']
* @param {string} [opts.pixelRatio=1]
* @param {string} [opts.backgroundColor]
*/
echartsProto.getConnectedDataURL = function (opts) {
if (!env.canvasSupported) {
return;
}
var groupId = this.group;
var mathMin = Math.min;
var mathMax = Math.max;
var MAX_NUMBER = Infinity;
if (connectedGroups[groupId]) {
var left = MAX_NUMBER;
var top = MAX_NUMBER;
var right = -MAX_NUMBER;
var bottom = -MAX_NUMBER;
var canvasList = [];
var dpr = (opts && opts.pixelRatio) || 1;
for (var id in instances) {
var chart = instances[id];
if (chart.group === groupId) {
var canvas = chart.getRenderedCanvas(
zrUtil.clone(opts)
);
var boundingRect = chart.getDom().getBoundingClientRect();
left = mathMin(boundingRect.left, left);
top = mathMin(boundingRect.top, top);
right = mathMax(boundingRect.right, right);
bottom = mathMax(boundingRect.bottom, bottom);
canvasList.push({
dom: canvas,
left: boundingRect.left,
top: boundingRect.top
});
}
}
left *= dpr;
top *= dpr;
right *= dpr;
bottom *= dpr;
var width = right - left;
var height = bottom - top;
var targetCanvas = zrUtil.createCanvas();
targetCanvas.width = width;
targetCanvas.height = height;
var zr = zrender.init(targetCanvas);
each(canvasList, function (item) {
var img = new graphic.Image({
style: {
x: item.left * dpr - left,
y: item.top * dpr - top,
image: item.dom
}
});
zr.add(img);
});
zr.refreshImmediately();
return targetCanvas.toDataURL('image/' + (opts && opts.type || 'png'));
}
else {
return this.getDataURL(opts);
}
};
var updateMethods = {
/**
* @param {Object} payload
* @private
*/
update: function (payload) {
// console.time && console.time('update');
var ecModel = this._model;
var api = this._api;
var coordSysMgr = this._coordSysMgr;
// update before setOption
if (!ecModel) {
return;
}
// Fixme First time update ?
ecModel.restoreData();
// TODO
// Save total ecModel here for undo/redo (after restoring data and before processing data).
// Undo (restoration of total ecModel) can be carried out in 'action' or outside API call.
// Create new coordinate system each update
// In LineView may save the old coordinate system and use it to get the orignal point
coordSysMgr.create(this._model, this._api);
processData.call(this, ecModel, api);
stackSeriesData.call(this, ecModel);
coordSysMgr.update(ecModel, api);
doLayout.call(this, ecModel, payload);
doVisualCoding.call(this, ecModel, payload);
doRender.call(this, ecModel, payload);
// Set background
var backgroundColor = ecModel.get('backgroundColor') || 'transparent';
var painter = this._zr.painter;
// TODO all use clearColor ?
if (painter.isSingleCanvas && painter.isSingleCanvas()) {
this._zr.configLayer(0, {
clearColor: backgroundColor
});
}
else {
// In IE8
if (!env.canvasSupported) {
var colorArr = colorTool.parse(backgroundColor);
backgroundColor = colorTool.stringify(colorArr, 'rgb');
if (colorArr[3] === 0) {
backgroundColor = 'transparent';
}
}
backgroundColor = backgroundColor;
this._dom.style.backgroundColor = backgroundColor;
}
// console.time && console.timeEnd('update');
},
// PENDING
/**
* @param {Object} payload
* @private
*/
updateView: function (payload) {
var ecModel = this._model;
// update before setOption
if (!ecModel) {
return;
}
doLayout.call(this, ecModel, payload);
doVisualCoding.call(this, ecModel, payload);
invokeUpdateMethod.call(this, 'updateView', ecModel, payload);
},
/**
* @param {Object} payload
* @private
*/
updateVisual: function (payload) {
var ecModel = this._model;
// update before setOption
if (!ecModel) {
return;
}
doVisualCoding.call(this, ecModel, payload);
invokeUpdateMethod.call(this, 'updateVisual', ecModel, payload);
},
/**
* @param {Object} payload
* @private
*/
updateLayout: function (payload) {
var ecModel = this._model;
// update before setOption
if (!ecModel) {
return;
}
doLayout.call(this, ecModel, payload);
invokeUpdateMethod.call(this, 'updateLayout', ecModel, payload);
},
/**
* @param {Object} payload
* @private
*/
highlight: function (payload) {
toggleHighlight.call(this, 'highlight', payload);
},
/**
* @param {Object} payload
* @private
*/
downplay: function (payload) {
toggleHighlight.call(this, 'downplay', payload);
},
/**
* @param {Object} payload
* @private
*/
prepareAndUpdate: function (payload) {
var ecModel = this._model;
prepareView.call(this, 'component', ecModel);
prepareView.call(this, 'chart', ecModel);
updateMethods.update.call(this, payload);
}
};
/**
* @param {Object} payload
* @private
*/
function toggleHighlight(method, payload) {
var ecModel = this._model;
// dispatchAction before setOption
if (!ecModel) {
return;
}
ecModel.eachComponent(
{mainType: 'series', query: payload},
function (seriesModel, index) {
var chartView = this._chartsMap[seriesModel.__viewId];
if (chartView && chartView.__alive) {
chartView[method](
seriesModel, ecModel, this._api, payload
);
}
},
this
);
}
/**
* Resize the chart
*/
echartsProto.resize = function () {
this._zr.resize();
var optionChanged = this._model && this._model.resetOption('media');
updateMethods[optionChanged ? 'prepareAndUpdate' : 'update'].call(this);
// Resize loading effect
this._loadingFX && this._loadingFX.resize();
};
var defaultLoadingEffect = require('./loading/default');
/**
* Show loading effect
* @param {string} [name='default']
* @param {Object} [cfg]
*/
echartsProto.showLoading = function (name, cfg) {
if (zrUtil.isObject(name)) {
cfg = name;
name = 'default';
}
this.hideLoading();
var el = defaultLoadingEffect(this._api, cfg);
var zr = this._zr;
this._loadingFX = el;
zr.add(el);
};
/**
* Hide loading effect
*/
echartsProto.hideLoading = function () {
this._loadingFX && this._zr.remove(this._loadingFX);
this._loadingFX = null;
};
/**
* @param {Object} eventObj
* @return {Object}
*/
echartsProto.makeActionFromEvent = function (eventObj) {
var payload = zrUtil.extend({}, eventObj);
payload.type = eventActionMap[eventObj.type];
return payload;
};
/**
* @pubilc
* @param {Object} payload
* @param {string} [payload.type] Action type
* @param {boolean} [silent=false] Whether trigger event.
*/
echartsProto.dispatchAction = function (payload, silent) {
var actionWrap = actions[payload.type];
if (actionWrap) {
var actionInfo = actionWrap.actionInfo;
var updateMethod = actionInfo.update || 'update';
var payloads = [payload];
var batched = false;
// Batch action
if (payload.batch) {
batched = true;
payloads = zrUtil.map(payload.batch, function (item) {
item = zrUtil.defaults(zrUtil.extend({}, item), payload);
item.batch = null;
return item;
});
}
var eventObjBatch = [];
var eventObj;
var isHighlightOrDownplay = payload.type === 'highlight' || payload.type === 'downplay';
for (var i = 0; i < payloads.length; i++) {
var batchItem = payloads[i];
// Action can specify the event by return it.
eventObj = actionWrap.action(batchItem, this._model);
// Emit event outside
eventObj = eventObj || zrUtil.extend({}, batchItem);
// Convert type to eventType
eventObj.type = actionInfo.event || eventObj.type;
eventObjBatch.push(eventObj);
// Highlight and downplay are special.
isHighlightOrDownplay && updateMethods[updateMethod].call(this, batchItem);
}
(updateMethod !== 'none' && !isHighlightOrDownplay)
&& updateMethods[updateMethod].call(this, payload);
if (!silent) {
// Follow the rule of action batch
if (batched) {
eventObj = {
type: actionInfo.event || payload.type,
batch: eventObjBatch
};
}
else {
eventObj = eventObjBatch[0];
}
this._messageCenter.trigger(eventObj.type, eventObj);
}
}
};
/**
* Register event
* @method
*/
echartsProto.on = createRegisterEventWithLowercaseName('on');
echartsProto.off = createRegisterEventWithLowercaseName('off');
echartsProto.one = createRegisterEventWithLowercaseName('one');
/**
* @param {string} methodName
* @private
*/
function invokeUpdateMethod(methodName, ecModel, payload) {
var api = this._api;
// Update all components
each(this._componentsViews, function (component) {
var componentModel = component.__model;
component[methodName](componentModel, ecModel, api, payload);
updateZ(componentModel, component);
}, this);
// Upate all charts
ecModel.eachSeries(function (seriesModel, idx) {
var chart = this._chartsMap[seriesModel.__viewId];
chart[methodName](seriesModel, ecModel, api, payload);
updateZ(seriesModel, chart);
}, this);
}
/**
* Prepare view instances of charts and components
* @param {module:echarts/model/Global} ecModel
* @private
*/
function prepareView(type, ecModel) {
var isComponent = type === 'component';
var viewList = isComponent ? this._componentsViews : this._chartsViews;
var viewMap = isComponent ? this._componentsMap : this._chartsMap;
var zr = this._zr;
for (var i = 0; i < viewList.length; i++) {
viewList[i].__alive = false;
}
ecModel[isComponent ? 'eachComponent' : 'eachSeries'](function (componentType, model) {
if (isComponent) {
if (componentType === 'series') {
return;
}
}
else {
model = componentType;
}
// Consider: id same and type changed.
var viewId = model.id + '_' + model.type;
var view = viewMap[viewId];
if (!view) {
var classType = ComponentModel.parseClassType(model.type);
var Clazz = isComponent
? ComponentView.getClass(classType.main, classType.sub)
: ChartView.getClass(classType.sub);
if (Clazz) {
view = new Clazz();
view.init(ecModel, this._api);
viewMap[viewId] = view;
viewList.push(view);
zr.add(view.group);
}
else {
// Error
return;
}
}
model.__viewId = viewId;
view.__alive = true;
view.__id = viewId;
view.__model = model;
}, this);
for (var i = 0; i < viewList.length;) {
var view = viewList[i];
if (!view.__alive) {
zr.remove(view.group);
view.dispose(ecModel, this._api);
viewList.splice(i, 1);
delete viewMap[view.__id];
}
else {
i++;
}
}
}
/**
* Processor data in each series
*
* @param {module:echarts/model/Global} ecModel
* @private
*/
function processData(ecModel, api) {
each(PROCESSOR_STAGES, function (stage) {
each(dataProcessorFuncs[stage] || [], function (process) {
process(ecModel, api);
});
});
}
/**
* @private
*/
function stackSeriesData(ecModel) {
var stackedDataMap = {};
ecModel.eachSeries(function (series) {
var stack = series.get('stack');
var data = series.getData();
if (stack && data.type === 'list') {
var previousStack = stackedDataMap[stack];
if (previousStack) {
data.stackedOn = previousStack;
}
stackedDataMap[stack] = data;
}
});
}
/**
* Layout before each chart render there series, after visual coding and data processing
*
* @param {module:echarts/model/Global} ecModel
* @private
*/
function doLayout(ecModel, payload) {
var api = this._api;
each(layoutFuncs, function (layout) {
layout(ecModel, api, payload);
});
}
/**
* Code visual infomation from data after data processing
*
* @param {module:echarts/model/Global} ecModel
* @private
*/
function doVisualCoding(ecModel, payload) {
each(VISUAL_CODING_STAGES, function (stage) {
each(visualCodingFuncs[stage] || [], function (visualCoding) {
visualCoding(ecModel, payload);
});
});
}
/**
* Render each chart and component
* @private
*/
function doRender(ecModel, payload) {
var api = this._api;
// Render all components
each(this._componentsViews, function (componentView) {
var componentModel = componentView.__model;
componentView.render(componentModel, ecModel, api, payload);
updateZ(componentModel, componentView);
}, this);
each(this._chartsViews, function (chart) {
chart.__alive = false;
}, this);
// Render all charts
ecModel.eachSeries(function (seriesModel, idx) {
var chartView = this._chartsMap[seriesModel.__viewId];
chartView.__alive = true;
chartView.render(seriesModel, ecModel, api, payload);
chartView.group.silent = !!seriesModel.get('silent');
updateZ(seriesModel, chartView);
}, this);
// Remove groups of unrendered charts
each(this._chartsViews, function (chart) {
if (!chart.__alive) {
chart.remove(ecModel, api);
}
}, this);
}
var MOUSE_EVENT_NAMES = [
'click', 'dblclick', 'mouseover', 'mouseout', 'mousedown', 'mouseup', 'globalout'
];
/**
* @private
*/
echartsProto._initEvents = function () {
each(MOUSE_EVENT_NAMES, function (eveName) {
this._zr.on(eveName, function (e) {
var ecModel = this.getModel();
var el = e.target;
if (el && el.dataIndex != null) {
var dataModel = el.dataModel || ecModel.getSeriesByIndex(el.seriesIndex);
var params = dataModel && dataModel.getDataParams(el.dataIndex, el.dataType) || {};
params.event = e;
params.type = eveName;
this.trigger(eveName, params);
}
// If element has custom eventData of components
else if (el && el.eventData) {
this.trigger(eveName, el.eventData);
}
}, this);
}, this);
each(eventActionMap, function (actionType, eventType) {
this._messageCenter.on(eventType, function (event) {
this.trigger(eventType, event);
}, this);
}, this);
};
/**
* @return {boolean}
*/
echartsProto.isDisposed = function () {
return this._disposed;
};
/**
* Clear
*/
echartsProto.clear = function () {
this.setOption({}, true);
};
/**
* Dispose instance
*/
echartsProto.dispose = function () {
this._disposed = true;
var api = this._api;
var ecModel = this._model;
each(this._componentsViews, function (component) {
component.dispose(ecModel, api);
});
each(this._chartsViews, function (chart) {
chart.dispose(ecModel, api);
});
this._zr.dispose();
delete instances[this.id];
};
zrUtil.mixin(ECharts, Eventful);
/**
* @param {module:echarts/model/Series|module:echarts/model/Component} model
* @param {module:echarts/view/Component|module:echarts/view/Chart} view
* @return {string}
*/
function updateZ(model, view) {
var z = model.get('z');
var zlevel = model.get('zlevel');
// Set z and zlevel
view.group.traverse(function (el) {
z != null && (el.z = z);
zlevel != null && (el.zlevel = zlevel);
});
}
/**
* @type {Array.<Function>}
* @inner
*/
var actions = [];
/**
* Map eventType to actionType
* @type {Object}
*/
var eventActionMap = {};
/**
* @type {Array.<Function>}
* @inner
*/
var layoutFuncs = [];
/**
* Data processor functions of each stage
* @type {Array.<Object.<string, Function>>}
* @inner
*/
var dataProcessorFuncs = {};
/**
* @type {Array.<Function>}
* @inner
*/
var optionPreprocessorFuncs = [];
/**
* Visual coding functions of each stage
* @type {Array.<Object.<string, Function>>}
* @inner
*/
var visualCodingFuncs = {};
/**
* Theme storage
* @type {Object.<key, Object>}
*/
var themeStorage = {};
var instances = {};
var connectedGroups = {};
var idBase = new Date() - 0;
var groupIdBase = new Date() - 0;
var DOM_ATTRIBUTE_KEY = '_echarts_instance_';
/**
* @alias module:echarts
*/
var echarts = {
/**
* @type {number}
*/
version: '3.1.10',
dependencies: {
zrender: '3.1.0'
}
};
function enableConnect(chart) {
var STATUS_PENDING = 0;
var STATUS_UPDATING = 1;
var STATUS_UPDATED = 2;
var STATUS_KEY = '__connectUpdateStatus';
function updateConnectedChartsStatus(charts, status) {
for (var i = 0; i < charts.length; i++) {
var otherChart = charts[i];
otherChart[STATUS_KEY] = status;
}
}
zrUtil.each(eventActionMap, function (actionType, eventType) {
chart._messageCenter.on(eventType, function (event) {
if (connectedGroups[chart.group] && chart[STATUS_KEY] !== STATUS_PENDING) {
var action = chart.makeActionFromEvent(event);
var otherCharts = [];
for (var id in instances) {
var otherChart = instances[id];
if (otherChart !== chart && otherChart.group === chart.group) {
otherCharts.push(otherChart);
}
}
updateConnectedChartsStatus(otherCharts, STATUS_PENDING);
each(otherCharts, function (otherChart) {
if (otherChart[STATUS_KEY] !== STATUS_UPDATING) {
otherChart.dispatchAction(action);
}
});
updateConnectedChartsStatus(otherCharts, STATUS_UPDATED);
}
});
});
}
/**
* @param {HTMLDomElement} dom
* @param {Object} [theme]
* @param {Object} opts
*/
echarts.init = function (dom, theme, opts) {
// Check version
if ((zrender.version.replace('.', '') - 0) < (echarts.dependencies.zrender.replace('.', '') - 0)) {
throw new Error(
'ZRender ' + zrender.version
+ ' is too old for ECharts ' + echarts.version
+ '. Current version need ZRender '
+ echarts.dependencies.zrender + '+'
);
}
if (!dom) {
throw new Error('Initialize failed: invalid dom.');
}
var chart = new ECharts(dom, theme, opts);
chart.id = 'ec_' + idBase++;
instances[chart.id] = chart;
dom.setAttribute &&
dom.setAttribute(DOM_ATTRIBUTE_KEY, chart.id);
enableConnect(chart);
return chart;
};
/**
* @return {string|Array.<module:echarts~ECharts>} groupId
*/
echarts.connect = function (groupId) {
// Is array of charts
if (zrUtil.isArray(groupId)) {
var charts = groupId;
groupId = null;
// If any chart has group
zrUtil.each(charts, function (chart) {
if (chart.group != null) {
groupId = chart.group;
}
});
groupId = groupId || ('g_' + groupIdBase++);
zrUtil.each(charts, function (chart) {
chart.group = groupId;
});
}
connectedGroups[groupId] = true;
return groupId;
};
/**
* @return {string} groupId
*/
echarts.disConnect = function (groupId) {
connectedGroups[groupId] = false;
};
/**
* Dispose a chart instance
* @param {module:echarts~ECharts|HTMLDomElement|string} chart
*/
echarts.dispose = function (chart) {
if (zrUtil.isDom(chart)) {
chart = echarts.getInstanceByDom(chart);
}
else if (typeof chart === 'string') {
chart = instances[chart];
}
if ((chart instanceof ECharts) && !chart.isDisposed()) {
chart.dispose();
}
};
/**
* @param {HTMLDomElement} dom
* @return {echarts~ECharts}
*/
echarts.getInstanceByDom = function (dom) {
var key = dom.getAttribute(DOM_ATTRIBUTE_KEY);
return instances[key];
};
/**
* @param {string} key
* @return {echarts~ECharts}
*/
echarts.getInstanceById = function (key) {
return instances[key];
};
/**
* Register theme
*/
echarts.registerTheme = function (name, theme) {
themeStorage[name] = theme;
};
/**
* Register option preprocessor
* @param {Function} preprocessorFunc
*/
echarts.registerPreprocessor = function (preprocessorFunc) {
optionPreprocessorFuncs.push(preprocessorFunc);
};
/**
* @param {string} stage
* @param {Function} processorFunc
*/
echarts.registerProcessor = function (stage, processorFunc) {
if (zrUtil.indexOf(PROCESSOR_STAGES, stage) < 0) {
throw new Error('stage should be one of ' + PROCESSOR_STAGES);
}
var funcs = dataProcessorFuncs[stage] || (dataProcessorFuncs[stage] = []);
funcs.push(processorFunc);
};
/**
* Usage:
* registerAction('someAction', 'someEvent', function () { ... });
* registerAction('someAction', function () { ... });
* registerAction(
* {type: 'someAction', event: 'someEvent', update: 'updateView'},
* function () { ... }
* );
*
* @param {(string|Object)} actionInfo
* @param {string} actionInfo.type
* @param {string} [actionInfo.event]
* @param {string} [actionInfo.update]
* @param {string} [eventName]
* @param {Function} action
*/
echarts.registerAction = function (actionInfo, eventName, action) {
if (typeof eventName === 'function') {
action = eventName;
eventName = '';
}
var actionType = zrUtil.isObject(actionInfo)
? actionInfo.type
: ([actionInfo, actionInfo = {
event: eventName
}][0]);
// Event name is all lowercase
actionInfo.event = (actionInfo.event || actionType).toLowerCase();
eventName = actionInfo.event;
if (!actions[actionType]) {
actions[actionType] = {action: action, actionInfo: actionInfo};
}
eventActionMap[eventName] = actionType;
};
/**
* @param {string} type
* @param {*} CoordinateSystem
*/
echarts.registerCoordinateSystem = function (type, CoordinateSystem) {
CoordinateSystemManager.register(type, CoordinateSystem);
};
/**
* @param {*} layout
*/
echarts.registerLayout = function (layout) {
// PENDING All functions ?
if (zrUtil.indexOf(layoutFuncs, layout) < 0) {
layoutFuncs.push(layout);
}
};
/**
* @param {string} stage
* @param {Function} visualCodingFunc
*/
echarts.registerVisualCoding = function (stage, visualCodingFunc) {
if (zrUtil.indexOf(VISUAL_CODING_STAGES, stage) < 0) {
throw new Error('stage should be one of ' + VISUAL_CODING_STAGES);
}
var funcs = visualCodingFuncs[stage] || (visualCodingFuncs[stage] = []);
funcs.push(visualCodingFunc);
};
/**
* @param {Object} opts
*/
echarts.extendChartView = function (opts) {
return ChartView.extend(opts);
};
/**
* @param {Object} opts
*/
echarts.extendComponentModel = function (opts) {
return ComponentModel.extend(opts);
};
/**
* @param {Object} opts
*/
echarts.extendSeriesModel = function (opts) {
return SeriesModel.extend(opts);
};
/**
* @param {Object} opts
*/
echarts.extendComponentView = function (opts) {
return ComponentView.extend(opts);
};
/**
* ZRender need a canvas context to do measureText.
* But in node environment canvas may be created by node-canvas.
* So we need to specify how to create a canvas instead of using document.createElement('canvas')
*
* Be careful of using it in the browser.
*
* @param {Function} creator
* @example
* var Canvas = require('canvas');
* var echarts = require('echarts');
* echarts.setCanvasCreator(function () {
* // Small size is enough.
* return new Canvas(32, 32);
* });
*/
echarts.setCanvasCreator = function (creator) {
zrUtil.createCanvas = creator;
};
echarts.registerVisualCoding('echarts', zrUtil.curry(
require('./visual/seriesColor'), '', 'itemStyle'
));
echarts.registerPreprocessor(require('./preprocessor/backwardCompat'));
// Default action
echarts.registerAction({
type: 'highlight',
event: 'highlight',
update: 'highlight'
}, zrUtil.noop);
echarts.registerAction({
type: 'downplay',
event: 'downplay',
update: 'downplay'
}, zrUtil.noop);
// --------
// Exports
// --------
echarts.graphic = require('./util/graphic');
echarts.number = require('./util/number');
echarts.format = require('./util/format');
echarts.matrix = require('zrender/core/matrix');
echarts.vector = require('zrender/core/vector');
echarts.util = {};
each([
'map', 'each', 'filter', 'indexOf', 'inherits',
'reduce', 'filter', 'bind', 'curry', 'isArray',
'isString', 'isObject', 'isFunction', 'extend'
],
function (name) {
echarts.util[name] = zrUtil[name];
}
);
return echarts;
});
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