145 lines
3.8 KiB
JavaScript
145 lines
3.8 KiB
JavaScript
|
|
/*
|
|
* Licensed to the Apache Software Foundation (ASF) under one
|
|
* or more contributor license agreements. See the NOTICE file
|
|
* distributed with this work for additional information
|
|
* regarding copyright ownership. The ASF licenses this file
|
|
* to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance
|
|
* with the License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing,
|
|
* software distributed under the License is distributed on an
|
|
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
* KIND, either express or implied. See the License for the
|
|
* specific language governing permissions and limitations
|
|
* under the License.
|
|
*/
|
|
|
|
var zrUtil = require("zrender/lib/core/util");
|
|
|
|
/*
|
|
* Licensed to the Apache Software Foundation (ASF) under one
|
|
* or more contributor license agreements. See the NOTICE file
|
|
* distributed with this work for additional information
|
|
* regarding copyright ownership. The ASF licenses this file
|
|
* to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance
|
|
* with the License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing,
|
|
* software distributed under the License is distributed on an
|
|
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
* KIND, either express or implied. See the License for the
|
|
* specific language governing permissions and limitations
|
|
* under the License.
|
|
*/
|
|
var each = zrUtil.each;
|
|
var ATTR = '\0_ec_hist_store';
|
|
/**
|
|
* @param {module:echarts/model/Global} ecModel
|
|
* @param {Object} newSnapshot {dataZoomId, batch: [payloadInfo, ...]}
|
|
*/
|
|
|
|
function push(ecModel, newSnapshot) {
|
|
var store = giveStore(ecModel); // If previous dataZoom can not be found,
|
|
// complete an range with current range.
|
|
|
|
each(newSnapshot, function (batchItem, dataZoomId) {
|
|
var i = store.length - 1;
|
|
|
|
for (; i >= 0; i--) {
|
|
var snapshot = store[i];
|
|
|
|
if (snapshot[dataZoomId]) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i < 0) {
|
|
// No origin range set, create one by current range.
|
|
var dataZoomModel = ecModel.queryComponents({
|
|
mainType: 'dataZoom',
|
|
subType: 'select',
|
|
id: dataZoomId
|
|
})[0];
|
|
|
|
if (dataZoomModel) {
|
|
var percentRange = dataZoomModel.getPercentRange();
|
|
store[0][dataZoomId] = {
|
|
dataZoomId: dataZoomId,
|
|
start: percentRange[0],
|
|
end: percentRange[1]
|
|
};
|
|
}
|
|
}
|
|
});
|
|
store.push(newSnapshot);
|
|
}
|
|
/**
|
|
* @param {module:echarts/model/Global} ecModel
|
|
* @return {Object} snapshot
|
|
*/
|
|
|
|
|
|
function pop(ecModel) {
|
|
var store = giveStore(ecModel);
|
|
var head = store[store.length - 1];
|
|
store.length > 1 && store.pop(); // Find top for all dataZoom.
|
|
|
|
var snapshot = {};
|
|
each(head, function (batchItem, dataZoomId) {
|
|
for (var i = store.length - 1; i >= 0; i--) {
|
|
var batchItem = store[i][dataZoomId];
|
|
|
|
if (batchItem) {
|
|
snapshot[dataZoomId] = batchItem;
|
|
break;
|
|
}
|
|
}
|
|
});
|
|
return snapshot;
|
|
}
|
|
/**
|
|
* @param {module:echarts/model/Global} ecModel
|
|
*/
|
|
|
|
|
|
function clear(ecModel) {
|
|
ecModel[ATTR] = null;
|
|
}
|
|
/**
|
|
* @param {module:echarts/model/Global} ecModel
|
|
* @return {number} records. always >= 1.
|
|
*/
|
|
|
|
|
|
function count(ecModel) {
|
|
return giveStore(ecModel).length;
|
|
}
|
|
/**
|
|
* [{key: dataZoomId, value: {dataZoomId, range}}, ...]
|
|
* History length of each dataZoom may be different.
|
|
* this._history[0] is used to store origin range.
|
|
* @type {Array.<Object>}
|
|
*/
|
|
|
|
|
|
function giveStore(ecModel) {
|
|
var store = ecModel[ATTR];
|
|
|
|
if (!store) {
|
|
store = ecModel[ATTR] = [{}];
|
|
}
|
|
|
|
return store;
|
|
}
|
|
|
|
exports.push = push;
|
|
exports.pop = pop;
|
|
exports.clear = clear;
|
|
exports.count = count; |