interactionMutex.js
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var echarts = require("../../echarts");
/*
* 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 ATTR = '\0_ec_interaction_mutex';
function take(zr, resourceKey, userKey) {
var store = getStore(zr);
store[resourceKey] = userKey;
}
function release(zr, resourceKey, userKey) {
var store = getStore(zr);
var uKey = store[resourceKey];
if (uKey === userKey) {
store[resourceKey] = null;
}
}
function isTaken(zr, resourceKey) {
return !!getStore(zr)[resourceKey];
}
function getStore(zr) {
return zr[ATTR] || (zr[ATTR] = {});
}
/**
* payload: {
* type: 'takeGlobalCursor',
* key: 'dataZoomSelect', or 'brush', or ...,
* If no userKey, release global cursor.
* }
*/
echarts.registerAction({
type: 'takeGlobalCursor',
event: 'globalCursorTaken',
update: 'update'
}, function () {});
exports.take = take;
exports.release = release;
exports.isTaken = isTaken;