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c3_chart_fn.focus = function (targetIds) {
var $$ = this.internal, candidates;
targetIds = $$.mapToTargetIds(targetIds);
candidates = $$.svg.selectAll($$.selectorTargets(targetIds.filter($$.isTargetToShow, $$))),
this.revert();
this.defocus();
candidates.classed(CLASS.focused, true).classed(CLASS.defocused, false);
if ($$.hasArcType()) {
$$.expandArc(targetIds);
}
$$.toggleFocusLegend(targetIds, true);
$$.focusedTargetIds = targetIds;
$$.defocusedTargetIds = $$.defocusedTargetIds.filter(function (id) {
return targetIds.indexOf(id) < 0;
});
};
c3_chart_fn.defocus = function (targetIds) {
var $$ = this.internal, candidates;
targetIds = $$.mapToTargetIds(targetIds);
candidates = $$.svg.selectAll($$.selectorTargets(targetIds.filter($$.isTargetToShow, $$))),
candidates.classed(CLASS.focused, false).classed(CLASS.defocused, true);
if ($$.hasArcType()) {
$$.unexpandArc(targetIds);
}
$$.toggleFocusLegend(targetIds, false);
$$.focusedTargetIds = $$.focusedTargetIds.filter(function (id) {
return targetIds.indexOf(id) < 0;
});
$$.defocusedTargetIds = targetIds;
};
c3_chart_fn.revert = function (targetIds) {
var $$ = this.internal, candidates;
targetIds = $$.mapToTargetIds(targetIds);
candidates = $$.svg.selectAll($$.selectorTargets(targetIds)); // should be for all targets
candidates.classed(CLASS.focused, false).classed(CLASS.defocused, false);
if ($$.hasArcType()) {
$$.unexpandArc(targetIds);
}
if ($$.config.legend_show) {
$$.showLegend(targetIds.filter($$.isLegendToShow.bind($$)));
$$.legend.selectAll($$.selectorLegends(targetIds))
.filter(function () {
return $$.d3.select(this).classed(CLASS.legendItemFocused);
})
.classed(CLASS.legendItemFocused, false);
}
$$.focusedTargetIds = [];
$$.defocusedTargetIds = [];
};
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