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'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
var vue = require('vue');
var core = require('@vueuse/core');
require('../../../utils/index.js');
require('../../../hooks/index.js');
var constants = require('./constants.js');
var error = require('../../../utils/error.js');
var index = require('../../../hooks/use-namespace/index.js');
const COMPONENT_NAME = "ElLabelWrap";
var FormLabelWrap = vue.defineComponent({
name: COMPONENT_NAME,
props: {
isAutoWidth: Boolean,
updateAll: Boolean
},
setup(props, {
slots
}) {
const formContext = vue.inject(constants.formContextKey, void 0);
const formItemContext = vue.inject(constants.formItemContextKey);
if (!formItemContext)
error.throwError(COMPONENT_NAME, "usage: <el-form-item><label-wrap /></el-form-item>");
const ns = index.useNamespace("form");
const el = vue.ref();
const computedWidth = vue.ref(0);
const getLabelWidth = () => {
var _a;
if ((_a = el.value) == null ? void 0 : _a.firstElementChild) {
const width = window.getComputedStyle(el.value.firstElementChild).width;
return Math.ceil(Number.parseFloat(width));
} else {
return 0;
}
};
const updateLabelWidth = (action = "update") => {
vue.nextTick(() => {
if (slots.default && props.isAutoWidth) {
if (action === "update") {
computedWidth.value = getLabelWidth();
} else if (action === "remove") {
formContext == null ? void 0 : formContext.deregisterLabelWidth(computedWidth.value);
}
}
});
};
const updateLabelWidthFn = () => updateLabelWidth("update");
vue.onMounted(() => {
updateLabelWidthFn();
});
vue.onBeforeUnmount(() => {
updateLabelWidth("remove");
});
vue.onUpdated(() => updateLabelWidthFn());
vue.watch(computedWidth, (val, oldVal) => {
if (props.updateAll) {
formContext == null ? void 0 : formContext.registerLabelWidth(val, oldVal);
}
});
core.useResizeObserver(vue.computed(() => {
var _a, _b;
return (_b = (_a = el.value) == null ? void 0 : _a.firstElementChild) != null ? _b : null;
}), updateLabelWidthFn);
return () => {
var _a, _b;
if (!slots)
return null;
const {
isAutoWidth
} = props;
if (isAutoWidth) {
const autoLabelWidth = formContext == null ? void 0 : formContext.autoLabelWidth;
const hasLabel = formItemContext == null ? void 0 : formItemContext.hasLabel;
const style = {};
if (hasLabel && autoLabelWidth && autoLabelWidth !== "auto") {
const marginWidth = Math.max(0, Number.parseInt(autoLabelWidth, 10) - computedWidth.value);
const marginPosition = formContext.labelPosition === "left" ? "marginRight" : "marginLeft";
if (marginWidth) {
style[marginPosition] = `${marginWidth}px`;
}
}
return vue.createVNode("div", {
"ref": el,
"class": [ns.be("item", "label-wrap")],
"style": style
}, [(_a = slots.default) == null ? void 0 : _a.call(slots)]);
} else {
return vue.createVNode(vue.Fragment, {
"ref": el
}, [(_b = slots.default) == null ? void 0 : _b.call(slots)]);
}
};
}
});
exports["default"] = FormLabelWrap;
//# sourceMappingURL=form-label-wrap.js.map