element-plus
Version:
A Component Library for Vue 3
609 lines (603 loc) • 22.3 kB
JavaScript
import { defineComponent, inject, ref, computed, watch, nextTick, onMounted, onBeforeUnmount, resolveComponent, resolveDirective, openBlock, createBlock, withCtx, withDirectives, createElementVNode, normalizeClass, createVNode, createElementBlock, withModifiers, Fragment, renderList, toDisplayString, withKeys, vModelText, createCommentVNode, vShow, renderSlot } from 'vue';
import { isPromise } from '@vue/shared';
import debounce from 'lodash/debounce';
import ElCascaderPanel, { CommonProps } from 'element-plus/es/components/cascader-panel';
import ElInput from 'element-plus/es/components/input';
import ElPopper, { Effect } from 'element-plus/es/components/popper';
import ElScrollbar from 'element-plus/es/components/scrollbar';
import ElTag from 'element-plus/es/components/tag';
import { elFormKey, elFormItemKey } from 'element-plus/es/tokens';
import { ClickOutside } from 'element-plus/es/directives';
import { useLocaleInject } from 'element-plus/es/hooks';
import { EVENT_CODE } from 'element-plus/es/utils/aria';
import { UPDATE_MODEL_EVENT, CHANGE_EVENT } from 'element-plus/es/utils/constants';
import isServer from 'element-plus/es/utils/isServer';
import { useGlobalConfig } from 'element-plus/es/utils/util';
import { addResizeListener, removeResizeListener } from 'element-plus/es/utils/resize-event';
import { isValidComponentSize } from 'element-plus/es/utils/validators';
import { isKorean } from 'element-plus/es/utils/isDef';
var __defProp = Object.defineProperty;
var __defProps = Object.defineProperties;
var __getOwnPropDescs = Object.getOwnPropertyDescriptors;
var __getOwnPropSymbols = Object.getOwnPropertySymbols;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __propIsEnum = Object.prototype.propertyIsEnumerable;
var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
var __spreadValues = (a, b) => {
for (var prop in b || (b = {}))
if (__hasOwnProp.call(b, prop))
__defNormalProp(a, prop, b[prop]);
if (__getOwnPropSymbols)
for (var prop of __getOwnPropSymbols(b)) {
if (__propIsEnum.call(b, prop))
__defNormalProp(a, prop, b[prop]);
}
return a;
};
var __spreadProps = (a, b) => __defProps(a, __getOwnPropDescs(b));
const DEFAULT_INPUT_HEIGHT = 40;
const INPUT_HEIGHT_MAP = {
medium: 36,
small: 32,
mini: 28
};
const popperOptions = {
modifiers: [
{
name: "arrowPosition",
enabled: true,
phase: "main",
fn: ({ state }) => {
const { modifiersData, placement } = state;
if (["right", "left"].includes(placement))
return;
modifiersData.arrow.x = 35;
},
requires: ["arrow"]
}
]
};
var script = defineComponent({
name: "ElCascader",
components: {
ElCascaderPanel,
ElInput,
ElPopper,
ElScrollbar,
ElTag
},
directives: {
Clickoutside: ClickOutside
},
props: __spreadProps(__spreadValues({}, CommonProps), {
size: {
type: String,
validator: isValidComponentSize
},
placeholder: {
type: String
},
disabled: Boolean,
clearable: Boolean,
filterable: Boolean,
filterMethod: {
type: Function,
default: (node, keyword) => node.text.includes(keyword)
},
separator: {
type: String,
default: " / "
},
showAllLevels: {
type: Boolean,
default: true
},
collapseTags: Boolean,
debounce: {
type: Number,
default: 300
},
beforeFilter: {
type: Function,
default: () => true
},
popperClass: {
type: String,
default: ""
},
popperAppendToBody: {
type: Boolean,
default: true
}
}),
emits: [
UPDATE_MODEL_EVENT,
CHANGE_EVENT,
"focus",
"blur",
"visible-change",
"expand-change",
"remove-tag"
],
setup(props, { emit }) {
let inputInitialHeight = 0;
let pressDeleteCount = 0;
const { t } = useLocaleInject();
const $ELEMENT = useGlobalConfig();
const elForm = inject(elFormKey, {});
const elFormItem = inject(elFormItemKey, {});
const popper = ref(null);
const input = ref(null);
const tagWrapper = ref(null);
const panel = ref(null);
const suggestionPanel = ref(null);
const popperVisible = ref(false);
const inputHover = ref(false);
const filtering = ref(false);
const inputValue = ref("");
const searchInputValue = ref("");
const presentTags = ref([]);
const suggestions = ref([]);
const isOnComposition = ref(false);
const isDisabled = computed(() => props.disabled || elForm.disabled);
const inputPlaceholder = computed(() => props.placeholder || t("el.cascader.placeholder"));
const realSize = computed(() => props.size || elFormItem.size || $ELEMENT.size);
const tagSize = computed(() => ["small", "mini"].includes(realSize.value) ? "mini" : "small");
const multiple = computed(() => !!props.props.multiple);
const readonly = computed(() => !props.filterable || multiple.value);
const searchKeyword = computed(() => multiple.value ? searchInputValue.value : inputValue.value);
const checkedNodes = computed(() => {
var _a;
return ((_a = panel.value) == null ? void 0 : _a.checkedNodes) || [];
});
const clearBtnVisible = computed(() => {
if (!props.clearable || isDisabled.value || filtering.value || !inputHover.value)
return false;
return !!checkedNodes.value.length;
});
const presentText = computed(() => {
const { showAllLevels, separator } = props;
const nodes = checkedNodes.value;
return nodes.length ? multiple.value ? " " : nodes[0].calcText(showAllLevels, separator) : "";
});
const checkedValue = computed({
get() {
return props.modelValue;
},
set(val) {
var _a;
emit(UPDATE_MODEL_EVENT, val);
emit(CHANGE_EVENT, val);
(_a = elFormItem.validate) == null ? void 0 : _a.call(elFormItem, "change");
}
});
const popperPaneRef = computed(() => {
var _a;
return (_a = popper.value) == null ? void 0 : _a.popperRef;
});
const togglePopperVisible = (visible) => {
if (isDisabled.value)
return;
visible = visible != null ? visible : !popperVisible.value;
if (visible !== popperVisible.value) {
popperVisible.value = visible;
input.value.input.setAttribute("aria-expanded", visible);
if (visible) {
updatePopperPosition();
nextTick(panel.value.scrollToExpandingNode);
} else if (props.filterable) {
const { value } = presentText;
inputValue.value = value;
searchInputValue.value = value;
}
emit("visible-change", visible);
}
};
const updatePopperPosition = () => {
nextTick(popper.value.update);
};
const hideSuggestionPanel = () => {
filtering.value = false;
};
const genTag = (node) => {
const { showAllLevels, separator } = props;
return {
node,
key: node.uid,
text: node.calcText(showAllLevels, separator),
hitState: false,
closable: !isDisabled.value && !node.isDisabled
};
};
const deleteTag = (tag) => {
const { node } = tag;
node.doCheck(false);
panel.value.calculateCheckedValue();
emit("remove-tag", node.valueByOption);
};
const calculatePresentTags = () => {
if (!multiple.value)
return;
const nodes = checkedNodes.value;
const tags = [];
if (nodes.length) {
const [first, ...rest] = nodes;
const restCount = rest.length;
tags.push(genTag(first));
if (restCount) {
if (props.collapseTags) {
tags.push({
key: -1,
text: `+ ${restCount}`,
closable: false
});
} else {
rest.forEach((node) => tags.push(genTag(node)));
}
}
}
presentTags.value = tags;
};
const calculateSuggestions = () => {
const { filterMethod, showAllLevels, separator } = props;
const res = panel.value.getFlattedNodes(!props.props.checkStrictly).filter((node) => {
if (node.isDisabled)
return false;
node.calcText(showAllLevels, separator);
return filterMethod(node, searchKeyword.value);
});
if (multiple.value) {
presentTags.value.forEach((tag) => {
tag.hitState = false;
});
}
filtering.value = true;
suggestions.value = res;
updatePopperPosition();
};
const focusFirstNode = () => {
var _a;
let firstNode = null;
if (filtering.value && suggestionPanel.value) {
firstNode = suggestionPanel.value.$el.querySelector(".el-cascader__suggestion-item");
} else {
firstNode = (_a = panel.value) == null ? void 0 : _a.$el.querySelector('.el-cascader-node[tabindex="-1"]');
}
if (firstNode) {
firstNode.focus();
!filtering.value && firstNode.click();
}
};
const updateStyle = () => {
var _a;
const inputInner = input.value.input;
const tagWrapperEl = tagWrapper.value;
const suggestionPanelEl = (_a = suggestionPanel.value) == null ? void 0 : _a.$el;
if (isServer || !inputInner)
return;
if (suggestionPanelEl) {
const suggestionList = suggestionPanelEl.querySelector(".el-cascader__suggestion-list");
suggestionList.style.minWidth = `${inputInner.offsetWidth}px`;
}
if (tagWrapperEl) {
const { offsetHeight } = tagWrapperEl;
const height = presentTags.value.length > 0 ? `${Math.max(offsetHeight + 6, inputInitialHeight)}px` : `${inputInitialHeight}px`;
inputInner.style.height = height;
updatePopperPosition();
}
};
const getCheckedNodes = (leafOnly) => {
return panel.value.getCheckedNodes(leafOnly);
};
const handleExpandChange = (value) => {
updatePopperPosition();
emit("expand-change", value);
};
const handleComposition = (event) => {
var _a;
const text = (_a = event.target) == null ? void 0 : _a.value;
if (event.type === "compositionend") {
isOnComposition.value = false;
nextTick(() => handleInput(text));
} else {
const lastCharacter = text[text.length - 1] || "";
isOnComposition.value = !isKorean(lastCharacter);
}
};
const handleKeyDown = (e) => {
if (isOnComposition.value)
return;
switch (e.code) {
case EVENT_CODE.enter:
togglePopperVisible();
break;
case EVENT_CODE.down:
togglePopperVisible(true);
nextTick(focusFirstNode);
e.preventDefault();
break;
case EVENT_CODE.esc:
case EVENT_CODE.tab:
togglePopperVisible(false);
break;
}
};
const handleClear = () => {
panel.value.clearCheckedNodes();
togglePopperVisible(false);
};
const handleSuggestionClick = (node) => {
const { checked } = node;
if (multiple.value) {
panel.value.handleCheckChange(node, !checked, false);
} else {
!checked && panel.value.handleCheckChange(node, true, false);
togglePopperVisible(false);
}
};
const handleDelete = () => {
const tags = presentTags.value;
const lastTag = tags[tags.length - 1];
pressDeleteCount = searchInputValue.value ? 0 : pressDeleteCount + 1;
if (!lastTag || !pressDeleteCount)
return;
if (lastTag.hitState) {
deleteTag(lastTag);
} else {
lastTag.hitState = true;
}
};
const handleFilter = debounce(() => {
const { value } = searchKeyword;
if (!value)
return;
const passed = props.beforeFilter(value);
if (isPromise(passed)) {
passed.then(calculateSuggestions).catch(() => {
});
} else if (passed !== false) {
calculateSuggestions();
} else {
hideSuggestionPanel();
}
}, props.debounce);
const handleInput = (val, e) => {
!popperVisible.value && togglePopperVisible(true);
if (e == null ? void 0 : e.isComposing)
return;
val ? handleFilter() : hideSuggestionPanel();
};
watch(filtering, updatePopperPosition);
watch([checkedNodes, isDisabled], calculatePresentTags);
watch(presentTags, () => nextTick(updateStyle));
watch(presentText, (val) => inputValue.value = val, { immediate: true });
onMounted(() => {
const inputEl = input.value.$el;
inputInitialHeight = (inputEl == null ? void 0 : inputEl.offsetHeight) || INPUT_HEIGHT_MAP[realSize.value] || DEFAULT_INPUT_HEIGHT;
addResizeListener(inputEl, updateStyle);
});
onBeforeUnmount(() => {
removeResizeListener(input.value.$el, updateStyle);
});
return {
Effect,
popperOptions,
popper,
popperPaneRef,
input,
tagWrapper,
panel,
suggestionPanel,
popperVisible,
inputHover,
inputPlaceholder,
filtering,
presentText,
checkedValue,
inputValue,
searchInputValue,
presentTags,
suggestions,
isDisabled,
isOnComposition,
realSize,
tagSize,
multiple,
readonly,
clearBtnVisible,
t,
togglePopperVisible,
hideSuggestionPanel,
deleteTag,
focusFirstNode,
getCheckedNodes,
handleExpandChange,
handleKeyDown,
handleComposition,
handleClear,
handleSuggestionClick,
handleDelete,
handleInput
};
}
});
const _hoisted_1 = {
key: 0,
ref: "tagWrapper",
class: "el-cascader__tags"
};
const _hoisted_2 = ["placeholder"];
const _hoisted_3 = ["onClick"];
const _hoisted_4 = {
key: 0,
class: "el-icon-check"
};
const _hoisted_5 = { class: "el-cascader__empty-text" };
function render(_ctx, _cache, $props, $setup, $data, $options) {
const _component_el_input = resolveComponent("el-input");
const _component_el_tag = resolveComponent("el-tag");
const _component_el_cascader_panel = resolveComponent("el-cascader-panel");
const _component_el_scrollbar = resolveComponent("el-scrollbar");
const _component_el_popper = resolveComponent("el-popper");
const _directive_clickoutside = resolveDirective("clickoutside");
return openBlock(), createBlock(_component_el_popper, {
ref: "popper",
visible: _ctx.popperVisible,
"onUpdate:visible": _cache[18] || (_cache[18] = ($event) => _ctx.popperVisible = $event),
"manual-mode": "",
"append-to-body": _ctx.popperAppendToBody,
placement: "bottom-start",
"popper-class": `el-cascader__dropdown ${_ctx.popperClass}`,
"popper-options": _ctx.popperOptions,
"fallback-placements": ["bottom-start", "top-start", "right", "left"],
"stop-popper-mouse-event": false,
transition: "el-zoom-in-top",
"gpu-acceleration": false,
effect: _ctx.Effect.LIGHT,
pure: "",
onAfterLeave: _ctx.hideSuggestionPanel
}, {
trigger: withCtx(() => [
withDirectives(createElementVNode("div", {
class: normalizeClass([
"el-cascader",
_ctx.realSize && `el-cascader--${_ctx.realSize}`,
{ "is-disabled": _ctx.isDisabled }
]),
onClick: _cache[12] || (_cache[12] = () => _ctx.togglePopperVisible(_ctx.readonly ? void 0 : true)),
onKeydown: _cache[13] || (_cache[13] = (...args) => _ctx.handleKeyDown && _ctx.handleKeyDown(...args)),
onMouseenter: _cache[14] || (_cache[14] = ($event) => _ctx.inputHover = true),
onMouseleave: _cache[15] || (_cache[15] = ($event) => _ctx.inputHover = false)
}, [
createVNode(_component_el_input, {
ref: "input",
modelValue: _ctx.inputValue,
"onUpdate:modelValue": _cache[2] || (_cache[2] = ($event) => _ctx.inputValue = $event),
modelModifiers: { trim: true },
placeholder: _ctx.inputPlaceholder,
readonly: _ctx.readonly,
disabled: _ctx.isDisabled,
"validate-event": false,
size: _ctx.realSize,
class: normalizeClass({ "is-focus": _ctx.popperVisible }),
onCompositionstart: _ctx.handleComposition,
onCompositionupdate: _ctx.handleComposition,
onCompositionend: _ctx.handleComposition,
onFocus: _cache[3] || (_cache[3] = (e) => _ctx.$emit("focus", e)),
onBlur: _cache[4] || (_cache[4] = (e) => _ctx.$emit("blur", e)),
onInput: _ctx.handleInput
}, {
suffix: withCtx(() => [
_ctx.clearBtnVisible ? (openBlock(), createElementBlock("i", {
key: "clear",
class: "el-input__icon el-icon-circle-close",
onClick: _cache[0] || (_cache[0] = withModifiers((...args) => _ctx.handleClear && _ctx.handleClear(...args), ["stop"]))
})) : (openBlock(), createElementBlock("i", {
key: "arrow-down",
class: normalizeClass([
"el-input__icon",
"el-icon-arrow-down",
_ctx.popperVisible && "is-reverse"
]),
onClick: _cache[1] || (_cache[1] = withModifiers(($event) => _ctx.togglePopperVisible(), ["stop"]))
}, null, 2))
]),
_: 1
}, 8, ["modelValue", "placeholder", "readonly", "disabled", "size", "class", "onCompositionstart", "onCompositionupdate", "onCompositionend", "onInput"]),
_ctx.multiple ? (openBlock(), createElementBlock("div", _hoisted_1, [
(openBlock(true), createElementBlock(Fragment, null, renderList(_ctx.presentTags, (tag) => {
return openBlock(), createBlock(_component_el_tag, {
key: tag.key,
type: "info",
size: _ctx.tagSize,
hit: tag.hitState,
closable: tag.closable,
"disable-transitions": "",
onClose: ($event) => _ctx.deleteTag(tag)
}, {
default: withCtx(() => [
createElementVNode("span", null, toDisplayString(tag.text), 1)
]),
_: 2
}, 1032, ["size", "hit", "closable", "onClose"]);
}), 128)),
_ctx.filterable && !_ctx.isDisabled ? withDirectives((openBlock(), createElementBlock("input", {
key: 0,
"onUpdate:modelValue": _cache[5] || (_cache[5] = ($event) => _ctx.searchInputValue = $event),
type: "text",
class: "el-cascader__search-input",
placeholder: _ctx.presentText ? "" : _ctx.inputPlaceholder,
onInput: _cache[6] || (_cache[6] = (e) => _ctx.handleInput(_ctx.searchInputValue, e)),
onClick: _cache[7] || (_cache[7] = withModifiers(($event) => _ctx.togglePopperVisible(true), ["stop"])),
onKeydown: _cache[8] || (_cache[8] = withKeys((...args) => _ctx.handleDelete && _ctx.handleDelete(...args), ["delete"])),
onCompositionstart: _cache[9] || (_cache[9] = (...args) => _ctx.handleComposition && _ctx.handleComposition(...args)),
onCompositionupdate: _cache[10] || (_cache[10] = (...args) => _ctx.handleComposition && _ctx.handleComposition(...args)),
onCompositionend: _cache[11] || (_cache[11] = (...args) => _ctx.handleComposition && _ctx.handleComposition(...args))
}, null, 40, _hoisted_2)), [
[
vModelText,
_ctx.searchInputValue,
void 0,
{ trim: true }
]
]) : createCommentVNode("v-if", true)
], 512)) : createCommentVNode("v-if", true)
], 34), [
[_directive_clickoutside, () => _ctx.togglePopperVisible(false), _ctx.popperPaneRef]
])
]),
default: withCtx(() => [
withDirectives(createVNode(_component_el_cascader_panel, {
ref: "panel",
modelValue: _ctx.checkedValue,
"onUpdate:modelValue": _cache[16] || (_cache[16] = ($event) => _ctx.checkedValue = $event),
options: _ctx.options,
props: _ctx.props,
border: false,
"render-label": _ctx.$slots.default,
onExpandChange: _ctx.handleExpandChange,
onClose: _cache[17] || (_cache[17] = ($event) => _ctx.togglePopperVisible(false))
}, null, 8, ["modelValue", "options", "props", "render-label", "onExpandChange"]), [
[vShow, !_ctx.filtering]
]),
_ctx.filterable ? withDirectives((openBlock(), createBlock(_component_el_scrollbar, {
key: 0,
ref: "suggestionPanel",
tag: "ul",
class: "el-cascader__suggestion-panel",
"view-class": "el-cascader__suggestion-list"
}, {
default: withCtx(() => [
_ctx.suggestions.length ? (openBlock(true), createElementBlock(Fragment, { key: 0 }, renderList(_ctx.suggestions, (item) => {
return openBlock(), createElementBlock("li", {
key: item.uid,
class: normalizeClass([
"el-cascader__suggestion-item",
item.checked && "is-checked"
]),
tabindex: -1,
onClick: ($event) => _ctx.handleSuggestionClick(item)
}, [
createElementVNode("span", null, toDisplayString(item.text), 1),
item.checked ? (openBlock(), createElementBlock("i", _hoisted_4)) : createCommentVNode("v-if", true)
], 10, _hoisted_3);
}), 128)) : renderSlot(_ctx.$slots, "empty", { key: 1 }, () => [
createElementVNode("li", _hoisted_5, toDisplayString(_ctx.t("el.cascader.noMatch")), 1)
])
]),
_: 3
}, 512)), [
[vShow, _ctx.filtering]
]) : createCommentVNode("v-if", true)
]),
_: 3
}, 8, ["visible", "append-to-body", "popper-class", "popper-options", "effect", "onAfterLeave"]);
}
script.render = render;
script.__file = "packages/components/cascader/src/index.vue";
script.install = (app) => {
app.component(script.name, script);
};
const _Cascader = script;
const ElCascader = _Cascader;
export { ElCascader, _Cascader as default };