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/**
* @file Timeline preprocessor
*/
define(function(require) {
var zrUtil = require('zrender/core/util');
return function (option) {
var timelineOpt = option && option.timeline;
if (!zrUtil.isArray(timelineOpt)) {
timelineOpt = timelineOpt ? [timelineOpt] : [];
}
zrUtil.each(timelineOpt, function (opt) {
if (!opt) {
return;
}
compatibleEC2(opt);
});
};
function compatibleEC2(opt) {
var type = opt.type;
var ec2Types = {'number': 'value', 'time': 'time'};
// Compatible with ec2
if (ec2Types[type]) {
opt.axisType = ec2Types[type];
delete opt.type;
}
transferItem(opt);
if (has(opt, 'controlPosition')) {
var controlStyle = opt.controlStyle || (opt.controlStyle = {});
if (!has(controlStyle, 'position')) {
controlStyle.position = opt.controlPosition;
}
if (controlStyle.position === 'none' && !has(controlStyle, 'show')) {
controlStyle.show = false;
delete controlStyle.position;
}
delete opt.controlPosition;
}
zrUtil.each(opt.data || [], function (dataItem) {
if (zrUtil.isObject(dataItem) && !zrUtil.isArray(dataItem)) {
if (!has(dataItem, 'value') && has(dataItem, 'name')) {
// In ec2, using name as value.
dataItem.value = dataItem.name;
}
transferItem(dataItem);
}
});
}
function transferItem(opt) {
var itemStyle = opt.itemStyle || (opt.itemStyle = {});
var itemStyleEmphasis = itemStyle.emphasis || (itemStyle.emphasis = {});
// Transfer label out
var label = opt.label || (opt.label || {});
var labelNormal = label.normal || (label.normal = {});
var excludeLabelAttr = {normal: 1, emphasis: 1};
zrUtil.each(label, function (value, name) {
if (!excludeLabelAttr[name] && !has(labelNormal, name)) {
labelNormal[name] = value;
}
});
if (itemStyleEmphasis.label && !has(label, 'emphasis')) {
label.emphasis = itemStyleEmphasis.label;
delete itemStyleEmphasis.label;
}
}
function has(obj, attr) {
return obj.hasOwnProperty(attr);
}
});