82 lines
2.8 KiB
Plaintext
82 lines
2.8 KiB
Plaintext
/**
|
|
* @file Legend action
|
|
*/
|
|
define(function(require) {
|
|
|
|
var echarts = require('../../echarts');
|
|
var zrUtil = require('zrender/core/util');
|
|
|
|
function legendSelectActionHandler(methodName, payload, ecModel) {
|
|
var selectedMap = {};
|
|
var isToggleSelect = methodName === 'toggleSelected';
|
|
var isSelected;
|
|
// Update all legend components
|
|
ecModel.eachComponent('legend', function (legendModel) {
|
|
if (isToggleSelect && isSelected != null) {
|
|
// Force other legend has same selected status
|
|
// Or the first is toggled to true and other are toggled to false
|
|
// In the case one legend has some item unSelected in option. And if other legend
|
|
// doesn't has the item, they will assume it is selected.
|
|
legendModel[isSelected ? 'select' : 'unSelect'](payload.name);
|
|
}
|
|
else {
|
|
legendModel[methodName](payload.name);
|
|
isSelected = legendModel.isSelected(payload.name);
|
|
}
|
|
var legendData = legendModel.getData();
|
|
zrUtil.each(legendData, function (model) {
|
|
var name = model.get('name');
|
|
// Wrap element
|
|
if (name === '\n' || name === '') {
|
|
return;
|
|
}
|
|
var isItemSelected = legendModel.isSelected(name);
|
|
if (name in selectedMap) {
|
|
// Unselected if any legend is unselected
|
|
selectedMap[name] = selectedMap[name] && isItemSelected;
|
|
}
|
|
else {
|
|
selectedMap[name] = isItemSelected;
|
|
}
|
|
});
|
|
});
|
|
// Return the event explicitly
|
|
return {
|
|
name: payload.name,
|
|
selected: selectedMap
|
|
};
|
|
}
|
|
/**
|
|
* @event legendToggleSelect
|
|
* @type {Object}
|
|
* @property {string} type 'legendToggleSelect'
|
|
* @property {string} [from]
|
|
* @property {string} name Series name or data item name
|
|
*/
|
|
echarts.registerAction(
|
|
'legendToggleSelect', 'legendselectchanged',
|
|
zrUtil.curry(legendSelectActionHandler, 'toggleSelected')
|
|
);
|
|
|
|
/**
|
|
* @event legendSelect
|
|
* @type {Object}
|
|
* @property {string} type 'legendSelect'
|
|
* @property {string} name Series name or data item name
|
|
*/
|
|
echarts.registerAction(
|
|
'legendSelect', 'legendselected',
|
|
zrUtil.curry(legendSelectActionHandler, 'select')
|
|
);
|
|
|
|
/**
|
|
* @event legendUnSelect
|
|
* @type {Object}
|
|
* @property {string} type 'legendUnSelect'
|
|
* @property {string} name Series name or data item name
|
|
*/
|
|
echarts.registerAction(
|
|
'legendUnSelect', 'legendunselected',
|
|
zrUtil.curry(legendSelectActionHandler, 'unSelect')
|
|
);
|
|
}); |