helper.js
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/*
* 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.
*/
import * as zrUtil from 'zrender/src/core/util';
import * as formatUtil from '../../util/format';
var AXIS_DIMS = ['x', 'y', 'z', 'radius', 'angle', 'single'];
// Supported coords.
var COORDS = ['cartesian2d', 'polar', 'singleAxis'];
/**
* @param {string} coordType
* @return {boolean}
*/
export function isCoordSupported(coordType) {
return zrUtil.indexOf(COORDS, coordType) >= 0;
}
/**
* Create "each" method to iterate names.
*
* @pubilc
* @param {Array.<string>} names
* @param {Array.<string>=} attrs
* @return {Function}
*/
export function createNameEach(names, attrs) {
names = names.slice();
var capitalNames = zrUtil.map(names, formatUtil.capitalFirst);
attrs = (attrs || []).slice();
var capitalAttrs = zrUtil.map(attrs, formatUtil.capitalFirst);
return function (callback, context) {
zrUtil.each(names, function (name, index) {
var nameObj = {name: name, capital: capitalNames[index]};
for (var j = 0; j < attrs.length; j++) {
nameObj[attrs[j]] = name + capitalAttrs[j];
}
callback.call(context, nameObj);
});
};
}
/**
* Iterate each dimension name.
*
* @public
* @param {Function} callback The parameter is like:
* {
* name: 'angle',
* capital: 'Angle',
* axis: 'angleAxis',
* axisIndex: 'angleAixs',
* index: 'angleIndex'
* }
* @param {Object} context
*/
export var eachAxisDim = createNameEach(AXIS_DIMS, ['axisIndex', 'axis', 'index', 'id']);
/**
* If tow dataZoomModels has the same axis controlled, we say that they are 'linked'.
* dataZoomModels and 'links' make up one or more graphics.
* This function finds the graphic where the source dataZoomModel is in.
*
* @public
* @param {Function} forEachNode Node iterator.
* @param {Function} forEachEdgeType edgeType iterator
* @param {Function} edgeIdGetter Giving node and edgeType, return an array of edge id.
* @return {Function} Input: sourceNode, Output: Like {nodes: [], dims: {}}
*/
export function createLinkedNodesFinder(forEachNode, forEachEdgeType, edgeIdGetter) {
return function (sourceNode) {
var result = {
nodes: [],
records: {} // key: edgeType.name, value: Object (key: edge id, value: boolean).
};
forEachEdgeType(function (edgeType) {
result.records[edgeType.name] = {};
});
if (!sourceNode) {
return result;
}
absorb(sourceNode, result);
var existsLink;
do {
existsLink = false;
forEachNode(processSingleNode);
}
while (existsLink);
function processSingleNode(node) {
if (!isNodeAbsorded(node, result) && isLinked(node, result)) {
absorb(node, result);
existsLink = true;
}
}
return result;
};
function isNodeAbsorded(node, result) {
return zrUtil.indexOf(result.nodes, node) >= 0;
}
function isLinked(node, result) {
var hasLink = false;
forEachEdgeType(function (edgeType) {
zrUtil.each(edgeIdGetter(node, edgeType) || [], function (edgeId) {
result.records[edgeType.name][edgeId] && (hasLink = true);
});
});
return hasLink;
}
function absorb(node, result) {
result.nodes.push(node);
forEachEdgeType(function (edgeType) {
zrUtil.each(edgeIdGetter(node, edgeType) || [], function (edgeId) {
result.records[edgeType.name][edgeId] = true;
});
});
}
}