vxe-pc-ui
Version:
A vue based PC component library
672 lines (671 loc) • 28.2 kB
JavaScript
import { ref, computed, h, nextTick, inject, provide, reactive, Teleport, onMounted, onUnmounted, watch } from 'vue';
import { defineVxeComponent } from '../../ui/src/comp';
import { getConfig, getI18n, getIcon, globalEvents, createEvent, useSize, renderEmptyElement } from '../../ui';
import { getEventTargetNode, updatePanelPlacement, toCssUnit } from '../../ui/src/dom';
import { getLastZIndex, nextZIndex } from '../../ui/src/utils';
import { deNodeValue } from '../../tree/src/util';
import { errLog } from '../../ui/src/log';
import XEUtils from 'xe-utils';
import VxeInputComponent from '../../input/src/input';
import VxeButtonComponent from '../../button/src/button';
function getOptUniqueId() {
return XEUtils.uniqueId('node_');
}
function createInternalData() {
return {
// hpTimeout: undefined,
fullOptionList: [],
fullNodeMaps: {}
};
}
export default defineVxeComponent({
name: 'VxeCascader',
props: {
modelValue: [String, Number, Array],
clearable: Boolean,
placeholder: {
type: String,
default: () => XEUtils.eqNull(getConfig().cascader.placeholder) ? getI18n('vxe.base.pleaseSelect') : getConfig().cascader.placeholder
},
readonly: {
type: Boolean,
default: null
},
loading: Boolean,
disabled: {
type: Boolean,
default: null
},
filterable: Boolean,
filterConfig: Object,
multiple: Boolean,
className: [String, Function],
prefixIcon: String,
placement: String,
transform: Boolean,
lazyOptions: Array,
options: Array,
optionProps: Object,
zIndex: Number,
size: {
type: String,
default: () => getConfig().cascader.size || getConfig().size
},
remote: Boolean,
remoteConfig: Function,
popupConfig: Object,
autoClose: {
type: Boolean,
default: () => getConfig().cascader.autoClose
},
showTotalButoon: {
type: Boolean,
default: () => getConfig().cascader.showTotalButoon
},
showCheckedButoon: {
type: Boolean,
default: () => getConfig().cascader.showCheckedButoon
},
showClearButton: {
type: Boolean,
default: () => getConfig().cascader.showClearButton
},
transfer: {
type: Boolean,
default: null
},
/**
* 已废弃，被 remote-config.queryMethod 替换
* @deprecated
*/
remoteMethod: Function
},
emits: [
'update:modelValue',
'change',
'all-change',
'clear',
'blur',
'focus',
'click',
'node-click'
],
setup(props, context) {
const { emit, slots } = context;
const $xeModal = inject('$xeModal', null);
const $xeDrawer = inject('$xeDrawer', null);
const $xeTable = inject('$xeTable', null);
const $xeForm = inject('$xeForm', null);
const formItemInfo = inject('xeFormItemInfo', null);
const xID = XEUtils.uniqueId();
const { computeSize } = useSize(props);
const refElem = ref();
const refInput = ref();
const refInpSearch = ref();
const refTreeWrapper = ref();
const refOptionPanel = ref();
const refTree = ref();
const reactData = reactive({
initialized: false,
searchValue: '',
searchLoading: false,
panelIndex: 0,
panelStyle: {},
panelPlacement: null,
triggerFocusPanel: false,
visiblePanel: false,
isAniVisible: false,
isActivated: false
});
const internalData = createInternalData();
const refMaps = {
refElem
};
const computeFormReadonly = computed(() => {
const { readonly } = props;
if (readonly === null) {
if ($xeForm) {
return $xeForm.props.readonly;
}
return false;
}
return readonly;
});
const computeIsDisabled = computed(() => {
const { disabled } = props;
if (disabled === null) {
if ($xeForm) {
return $xeForm.props.disabled;
}
return false;
}
return disabled;
});
const computeBtnTransfer = computed(() => {
const { transfer } = props;
if (transfer === null) {
const globalTransfer = getConfig().select.transfer;
if (XEUtils.isBoolean(globalTransfer)) {
return globalTransfer;
}
if ($xeTable || $xeModal || $xeDrawer || $xeForm) {
return true;
}
}
return transfer;
});
const computePopupOpts = computed(() => {
return Object.assign({}, getConfig().cascader.popupConfig, props.popupConfig);
});
const computePropsOpts = computed(() => {
return props.optionProps || {};
});
const computeNodeKeyField = computed(() => {
const valueField = computeValueField.value;
return valueField;
});
const computeLabelField = computed(() => {
const propsOpts = computePropsOpts.value;
return propsOpts.label || 'label';
});
const computeValueField = computed(() => {
const propsOpts = computePropsOpts.value;
return propsOpts.value || 'value';
});
const computeChildrenField = computed(() => {
const propsOpts = computePropsOpts.value;
return propsOpts.children || 'children';
});
const computeRemoteOpts = computed(() => {
return Object.assign({}, getConfig().cascader.remoteConfig, props.remoteConfig);
});
const computeSelectLabel = computed(() => {
const { modelValue, lazyOptions } = props;
const { fullNodeMaps } = internalData;
const valueField = computeValueField.value;
const labelField = computeLabelField.value;
const selectVals = XEUtils.eqNull(modelValue) ? [] : (XEUtils.isArray(modelValue) ? modelValue : [modelValue]);
return selectVals.map(val => {
const cacheItem = fullNodeMaps[val];
if (cacheItem) {
return cacheItem.item[labelField];
}
if (lazyOptions) {
const lazyItem = lazyOptions.find(item => item[valueField] === val);
if (lazyItem) {
return lazyItem[labelField];
}
}
return val;
}).join(', ');
});
const computePopupWrapperStyle = computed(() => {
const popupOpts = computePopupOpts.value;
const { height, width } = popupOpts;
const stys = {};
if (width) {
stys.width = toCssUnit(width);
}
if (height) {
stys.height = toCssUnit(height);
stys.maxHeight = toCssUnit(height);
}
return stys;
});
const computeMaps = {};
const $xeCascader = {
xID,
props,
context,
reactData,
internalData,
getRefMaps: () => refMaps,
getComputeMaps: () => computeMaps
};
const dispatchEvent = (type, params, evnt) => {
emit(type, createEvent(evnt, { $cascader: $xeCascader }, params));
};
const emitModel = (value) => {
emit('update:modelValue', value);
};
const cascaderMethods = {
dispatchEvent
};
const getNodeid = (option) => {
const nodeKeyField = computeNodeKeyField.value;
const nodeid = option[nodeKeyField];
return nodeid ? encodeURIComponent(nodeid) : '';
};
const cacheDataMap = () => {
const { transform, options } = props;
const nodeKeyField = computeNodeKeyField.value;
const childrenField = computeChildrenField.value;
const valueField = computeValueField.value;
const nodeMaps = {};
const keyMaps = {};
const handleOptNode = (item, index, items, path, parent, nodes) => {
let nodeid = getNodeid(item);
if (!nodeid) {
nodeid = getOptUniqueId();
}
if (keyMaps[nodeid]) {
errLog('vxe.error.repeatKey', [`[tree-select] ${nodeKeyField}`, nodeid]);
}
keyMaps[nodeid] = true;
const value = item[valueField];
if (nodeMaps[value]) {
errLog('vxe.error.repeatKey', [`[tree-select] ${valueField}`, value]);
}
nodeMaps[value] = { item, index, items, parent, nodes };
};
if (options) {
if (transform) {
options.forEach((item, index, items) => {
handleOptNode(item, index, items, [], null, []);
});
}
else {
XEUtils.eachTree(options, handleOptNode, { children: childrenField });
}
}
internalData.fullOptionList = options || [];
internalData.fullNodeMaps = nodeMaps;
};
const updateZindex = () => {
const { zIndex } = props;
if (zIndex) {
reactData.panelIndex = zIndex;
}
else if (reactData.panelIndex < getLastZIndex()) {
reactData.panelIndex = nextZIndex();
}
};
const updatePlacement = () => {
const { placement } = props;
const { panelIndex } = reactData;
const targetElem = refElem.value;
const panelElem = refOptionPanel.value;
const btnTransfer = computeBtnTransfer.value;
const popupOpts = computePopupOpts.value;
const handleStyle = () => {
const ppObj = updatePanelPlacement(targetElem, panelElem, {
placement: popupOpts.placement || placement,
defaultPlacement: popupOpts.defaultPlacement,
teleportTo: btnTransfer
});
const panelStyle = Object.assign(ppObj.style, {
zIndex: panelIndex
});
reactData.panelStyle = panelStyle;
reactData.panelPlacement = ppObj.placement;
};
handleStyle();
return nextTick().then(handleStyle);
};
const showOptionPanel = () => {
const { loading, remote, filterable } = props;
const { fullOptionList } = internalData;
const isDisabled = computeIsDisabled.value;
const remoteOpts = computeRemoteOpts.value;
if (!loading && !isDisabled) {
clearTimeout(internalData.hpTimeout);
if (!reactData.initialized) {
reactData.initialized = true;
}
reactData.isActivated = true;
reactData.isAniVisible = true;
if (filterable) {
if (remote && remoteOpts.enabled && remoteOpts.autoLoad && !fullOptionList.length) {
handleSearchEvent();
}
}
setTimeout(() => {
reactData.visiblePanel = true;
handleFocusSearch();
}, 10);
updateZindex();
updatePlacement();
}
};
const hideOptionPanel = () => {
reactData.visiblePanel = false;
internalData.hpTimeout = setTimeout(() => {
reactData.isAniVisible = false;
}, 350);
};
const changeEvent = (evnt, selectValue, node) => {
const value = XEUtils.isArray(selectValue) ? selectValue.map(deNodeValue) : deNodeValue(selectValue);
emitModel(value);
if (value !== props.modelValue) {
dispatchEvent('change', { value, node, option: node }, evnt);
// 自动更新校验状态
if ($xeForm && formItemInfo) {
$xeForm.triggerItemEvent(evnt, formItemInfo.itemConfig.field, value);
}
}
};
const clearValueEvent = (evnt, selectValue) => {
changeEvent(evnt, selectValue, null);
dispatchEvent('clear', { value: selectValue }, evnt);
};
const clearEvent = (params, evnt) => {
clearValueEvent(evnt, null);
hideOptionPanel();
};
const allCheckedPanelEvent = (params) => {
const { $event } = params;
const { multiple, autoClose } = props;
const $tree = refTree.value;
if (multiple) {
if ($tree) {
$tree.setAllCheckboxNode(true).then(({ checkNodeKeys, checkNodes }) => {
changeEvent($event, checkNodeKeys, checkNodes[0]);
dispatchEvent('all-change', { value: checkNodeKeys }, $event);
if (autoClose) {
hideOptionPanel();
}
});
}
}
};
const clearCheckedPanelEvent = (params) => {
const { $event } = params;
const { multiple, autoClose } = props;
const $tree = refTree.value;
if ($tree) {
const value = multiple ? [] : null;
$tree.clearCheckboxNode().then(() => {
if (autoClose) {
hideOptionPanel();
}
});
changeEvent($event, value, null);
dispatchEvent('clear', { value }, $event);
}
};
const handleGlobalMousewheelEvent = (evnt) => {
const { visiblePanel } = reactData;
const isDisabled = computeIsDisabled.value;
if (!isDisabled) {
if (visiblePanel) {
const panelElem = refOptionPanel.value;
if (getEventTargetNode(evnt, panelElem).flag) {
updatePlacement();
}
else {
hideOptionPanel();
}
}
}
};
const handleGlobalMousedownEvent = (evnt) => {
const { visiblePanel } = reactData;
const isDisabled = computeIsDisabled.value;
if (!isDisabled) {
const el = refElem.value;
const panelElem = refOptionPanel.value;
reactData.isActivated = getEventTargetNode(evnt, el).flag || getEventTargetNode(evnt, panelElem).flag;
if (visiblePanel && !reactData.isActivated) {
hideOptionPanel();
}
}
};
const handleGlobalBlurEvent = () => {
const { visiblePanel, isActivated } = reactData;
if (visiblePanel) {
hideOptionPanel();
}
if (isActivated) {
reactData.isActivated = false;
}
if (visiblePanel || isActivated) {
const $input = refInput.value;
if ($input) {
$input.blur();
}
}
};
const handleGlobalResizeEvent = () => {
const { visiblePanel } = reactData;
if (visiblePanel) {
updatePlacement();
}
};
const handleFocusSearch = () => {
if (props.filterable) {
nextTick(() => {
const inpSearch = refInpSearch.value;
if (inpSearch) {
inpSearch.focus();
}
});
}
};
const focusEvent = (evnt) => {
const isDisabled = computeIsDisabled.value;
if (!isDisabled) {
if (!reactData.visiblePanel) {
reactData.triggerFocusPanel = true;
showOptionPanel();
setTimeout(() => {
reactData.triggerFocusPanel = false;
}, 150);
}
}
dispatchEvent('focus', {}, evnt);
};
const clickEvent = (evnt) => {
togglePanelEvent(evnt);
dispatchEvent('click', {}, evnt);
};
const blurEvent = (evnt) => {
reactData.isActivated = false;
dispatchEvent('blur', {}, evnt);
};
const modelSearchEvent = (value) => {
reactData.searchValue = value;
};
const handleSearchEvent = () => {
const { modelValue, remote, remoteMethod } = props;
const { searchValue } = reactData;
const remoteOpts = computeRemoteOpts.value;
const queryMethod = remoteOpts.queryMethod || remoteMethod;
if (remote && queryMethod && remoteOpts.enabled) {
reactData.searchLoading = true;
Promise.resolve(queryMethod({ $cascader: $xeCascader, searchValue, value: modelValue })).then(() => nextTick())
.catch(() => nextTick())
.finally(() => {
reactData.searchLoading = false;
});
}
};
const togglePanelEvent = (params) => {
const { $event } = params;
$event.preventDefault();
if (reactData.triggerFocusPanel) {
reactData.triggerFocusPanel = false;
}
else {
if (reactData.visiblePanel) {
hideOptionPanel();
}
else {
showOptionPanel();
}
}
};
const cascaderPrivateMethods = {};
Object.assign($xeCascader, cascaderMethods, cascaderPrivateMethods);
const renderVN = () => {
const { className, modelValue, multiple, loading, filterable, showTotalButoon, showCheckedButoon, showClearButton } = props;
const { initialized, isActivated, isAniVisible, visiblePanel, searchValue } = reactData;
const vSize = computeSize.value;
const isDisabled = computeIsDisabled.value;
const selectLabel = computeSelectLabel.value;
const btnTransfer = computeBtnTransfer.value;
const formReadonly = computeFormReadonly.value;
const popupWrapperStyle = computePopupWrapperStyle.value;
const headerSlot = slots.header;
const footerSlot = slots.footer;
const prefixSlot = slots.prefix;
const popupOpts = computePopupOpts.value;
const popupClassName = popupOpts.className;
if (formReadonly) {
return h('div', {
ref: refElem,
class: ['vxe-cascader--readonly', className]
}, [
h('span', {
class: 'vxe-cascader-label'
}, selectLabel)
]);
}
const selectVals = XEUtils.eqNull(modelValue) ? [] : (XEUtils.isArray(modelValue) ? modelValue : [modelValue]);
return h('div', {
ref: refElem,
class: ['vxe-cascader', className ? (XEUtils.isFunction(className) ? className({ $cascader: $xeCascader }) : className) : '', {
[`size--${vSize}`]: vSize,
'is--filterable': filterable,
'is--visible': visiblePanel,
'is--disabled': isDisabled,
'is--loading': loading,
'is--active': isActivated
}]
}, [
h(VxeInputComponent, {
ref: refInput,
clearable: props.clearable,
placeholder: loading ? getI18n('vxe.select.loadingText') : props.placeholder,
editable: false,
disabled: isDisabled,
type: 'text',
prefixIcon: props.prefixIcon,
suffixIcon: loading ? getIcon().TREE_SELECT_LOADED : (visiblePanel ? getIcon().TREE_SELECT_OPEN : getIcon().TREE_SELECT_CLOSE),
modelValue: loading ? '' : selectLabel,
title: selectLabel,
onClear: clearEvent,
onClick: clickEvent,
onFocus: focusEvent,
onBlur: blurEvent,
onSuffixClick: togglePanelEvent
}, prefixSlot
? {
prefix: () => prefixSlot({})
}
: {}),
h(Teleport, {
to: 'body',
disabled: btnTransfer ? !initialized : true
}, [
h('div', {
ref: refOptionPanel,
class: ['vxe-table--ignore-clear vxe-cascader--panel', popupClassName ? (XEUtils.isFunction(popupClassName) ? popupClassName({ $cascader: $xeCascader }) : popupClassName) : '', {
[`size--${vSize}`]: vSize,
'is--transfer': btnTransfer,
'ani--leave': !loading && isAniVisible,
'ani--enter': !loading && visiblePanel
}],
placement: reactData.panelPlacement,
style: reactData.panelStyle
}, initialized
? [
h('div', {
class: 'vxe-cascader--panel-wrapper'
}, [
filterable
? h('div', {
class: 'vxe-cascader--panel-search'
}, [
h(VxeInputComponent, {
ref: refInpSearch,
class: 'vxe-cascader-search--input',
modelValue: searchValue,
clearable: true,
disabled: false,
readonly: false,
placeholder: getI18n('vxe.cascader.search'),
prefixIcon: getIcon().INPUT_SEARCH,
'onUpdate:modelValue': modelSearchEvent
})
])
: renderEmptyElement($xeCascader),
showTotalButoon || (showCheckedButoon && multiple) || showClearButton || headerSlot
? h('div', {
class: 'vxe-cascader--panel-header'
}, headerSlot
? headerSlot({})
: [
h('div', {
class: 'vxe-cascader--header-button'
}, [
showTotalButoon
? h('div', {
class: 'vxe-cascader--header-total'
}, getI18n('vxe.cascader.total', [selectVals.length]))
: renderEmptyElement($xeCascader),
h('div', {
class: 'vxe-cascader--header-btns'
}, [
(showCheckedButoon && multiple)
? h(VxeButtonComponent, {
content: getI18n('vxe.cascader.allChecked'),
mode: 'text',
onClick: allCheckedPanelEvent
})
: renderEmptyElement($xeCascader),
showClearButton
? h(VxeButtonComponent, {
content: getI18n('vxe.cascader.clearChecked'),
mode: 'text',
onClick: clearCheckedPanelEvent
})
: renderEmptyElement($xeCascader)
])
])
])
: renderEmptyElement($xeCascader),
h('div', {
class: 'vxe-cascader--panel-body'
}, [
h('div', {
ref: refTreeWrapper,
class: 'vxe-cascader-tree--wrapper',
style: popupWrapperStyle
}, [])
]),
footerSlot
? h('div', {
class: 'vxe-cascader--panel-footer'
}, footerSlot({}))
: renderEmptyElement($xeCascader)
])
]
: [])
])
]);
};
watch(() => props.options, () => {
cacheDataMap();
});
cacheDataMap();
onMounted(() => {
globalEvents.on($xeCascader, 'mousewheel', handleGlobalMousewheelEvent);
globalEvents.on($xeCascader, 'mousedown', handleGlobalMousedownEvent);
globalEvents.on($xeCascader, 'blur', handleGlobalBlurEvent);
globalEvents.on($xeCascader, 'resize', handleGlobalResizeEvent);
});
onUnmounted(() => {
globalEvents.off($xeCascader, 'mousewheel');
globalEvents.off($xeCascader, 'mousedown');
globalEvents.off($xeCascader, 'blur');
globalEvents.off($xeCascader, 'resize');
XEUtils.assign(internalData, createInternalData());
});
provide('$xeCascader', $xeCascader);
$xeCascader.renderVN = renderVN;
return $xeCascader;
},
render() {
return this.renderVN();
}
});