@antv/g2
Version:
the Grammar of Graphics in Javascript
68 lines • 2.56 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var util_1 = require("@antv/util");
var base_1 = tslib_1.__importDefault(require("../base"));
var util_2 = require("../util");
/**
* 数据过滤。
* @ignore
*/
var DataFilter = /** @class */ (function (_super) {
tslib_1.__extends(DataFilter, _super);
function DataFilter() {
return _super !== null && _super.apply(this, arguments) || this;
}
DataFilter.prototype.filterView = function (view, field, filter) {
var _this = this;
// 只有存在这个 scale 时才生效
if (view.getScaleByField(field)) {
view.filter(field, filter);
}
if (view.views && view.views.length) {
util_1.each(view.views, function (subView) {
_this.filterView(subView, field, filter);
});
}
};
/**
* 过滤数据
*/
DataFilter.prototype.filter = function () {
var delegateObject = util_2.getDelegationObject(this.context);
if (delegateObject) {
var view = this.context.view;
var component = delegateObject.component;
var field = component.get('field');
// 列表类的组件能够触发
if (util_2.isList(delegateObject)) {
if (field) {
var unCheckedItems = component.getItemsByState('unchecked');
var scale_1 = util_2.getScaleByField(view, field);
var names_1 = unCheckedItems.map(function (item) { return item.name; });
if (names_1.length) {
this.filterView(view, field, function (value) {
var text = scale_1.getText(value);
return !names_1.includes(text);
});
}
else {
this.filterView(view, field, null);
}
view.render(true);
}
}
else if (util_2.isSlider(delegateObject)) {
var range = component.getValue();
var min_1 = range[0], max_1 = range[1];
this.filterView(view, field, function (value) {
return value >= min_1 && value <= max_1;
});
view.render(true);
}
}
};
return DataFilter;
}(base_1.default));
exports.default = DataFilter;
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