vxe-pc-ui
Version:
A vue based PC component library
617 lines (616 loc) • 26.6 kB
JavaScript
import { defineComponent, ref, computed, h, nextTick, inject, provide, reactive, Teleport, onMounted, onUnmounted, watch } from 'vue';
import { getConfig, getI18n, getIcon, globalEvents, createEvent, useSize, renderEmptyElement } from '../../ui';
import { getEventTargetNode, getAbsolutePos, toCssUnit } from '../../ui/src/dom';
import { getLastZIndex, nextZIndex } from '../../ui/src/utils';
import { errLog } from '../../ui/src/log';
import XEUtils from 'xe-utils';
import VxeInputComponent from '../../input/src/input';
import VxeTreeComponent from '../../tree/src/tree';
function getOptUniqueId() {
return XEUtils.uniqueId('node_');
}
export default defineComponent({
name: 'VxeTreeSelect',
props: {
modelValue: [String, Number, Array],
clearable: Boolean,
placeholder: {
type: String,
default: () => XEUtils.eqNull(getConfig().treeSelect.placeholder) ? getI18n('vxe.base.pleaseSelect') : getConfig().treeSelect.placeholder
},
readonly: {
type: Boolean,
default: null
},
loading: Boolean,
disabled: {
type: Boolean,
default: null
},
multiple: Boolean,
className: [String, Function],
popupClassName: [String, Function],
prefixIcon: String,
placement: String,
options: Array,
optionProps: Object,
size: {
type: String,
default: () => getConfig().select.size || getConfig().size
},
remote: Boolean,
remoteMethod: Function,
popupConfig: Object,
treeConfig: Object,
transfer: {
type: Boolean,
default: null
}
},
emits: [
'update:modelValue',
'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 refTreeWrapper = ref();
const refOptionPanel = ref();
const reactData = reactive({
initialized: false,
fullOptionList: [],
fullNodeMaps: {},
panelIndex: 0,
panelStyle: {},
panelPlacement: null,
triggerFocusPanel: false,
visiblePanel: false,
isAniVisible: false,
isActivated: false
});
const internalData = {
hpTimeout: undefined
};
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().treeSelect.popupConfig, props.popupConfig);
});
const computeTreeOpts = computed(() => {
return Object.assign({}, getConfig().treeSelect.treeConfig, props.treeConfig, { data: undefined });
});
const computeTreeNodeOpts = computed(() => {
const treeOpts = computeTreeOpts.value;
return Object.assign({ isHover: true }, treeOpts.nodeConfig);
});
const computeTreeCheckboxOpts = computed(() => {
const treeOpts = computeTreeOpts.value;
return Object.assign({
showIcon: !!treeOpts.showCheckbox
}, treeOpts.checkboxConfig, {
trigger: 'node'
});
});
const computeTreeRadioOpts = computed(() => {
const treeOpts = computeTreeOpts.value;
return Object.assign({
showIcon: !!treeOpts.showRadio
}, treeOpts.radioConfig, {
trigger: 'node'
});
});
const computePropsOpts = computed(() => {
return props.optionProps || {};
});
const computeNodeKeyField = computed(() => {
const treeOpts = computeTreeOpts.value;
return treeOpts.keyField || 'id';
});
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 computeParentField = computed(() => {
const propsOpts = computePropsOpts.value;
return propsOpts.parent || 'parentField';
});
const computeHasChildField = computed(() => {
const propsOpts = computePropsOpts.value;
return propsOpts.hasChild || 'hasChild';
});
const computeSelectLabel = computed(() => {
const { modelValue } = props;
const { fullNodeMaps } = reactData;
const labelField = computeLabelField.value;
return (XEUtils.isArray(modelValue) ? modelValue : [modelValue]).map(val => {
const cacheItem = fullNodeMaps[val];
return cacheItem ? cacheItem.item[labelField] : 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 $xeTreeSelect = {
xID,
props,
context,
reactData,
internalData,
getRefMaps: () => refMaps,
getComputeMaps: () => computeMaps
};
const dispatchEvent = (type, params, evnt) => {
emit(type, createEvent(evnt, { $treeSelect: $xeTreeSelect }, params));
};
const emitModel = (value) => {
emit('update:modelValue', value);
};
const treeSelectMethods = {
dispatchEvent
};
const getNodeid = (option) => {
const nodeKeyField = computeNodeKeyField.value;
const nodeid = option[nodeKeyField];
return nodeid ? encodeURIComponent(nodeid) : '';
};
const cacheDataMap = () => {
const { options } = props;
const nodeKeyField = computeNodeKeyField.value;
const childrenField = computeChildrenField.value;
const valueField = computeValueField.value;
const nodeMaps = {};
const keyMaps = {};
XEUtils.eachTree(options, (item, index, items, path, parent, nodes) => {
let nodeid = getNodeid(item);
if (!nodeid) {
nodeid = getOptUniqueId();
}
if (keyMaps[nodeid]) {
errLog('vxe.error.repeatKey', [nodeKeyField, nodeid]);
}
keyMaps[nodeid] = true;
const value = item[valueField];
if (nodeMaps[value]) {
errLog('vxe.error.repeatKey', [valueField, value]);
}
nodeMaps[value] = { item, index, items, parent, nodes };
}, { children: childrenField });
reactData.fullOptionList = options || [];
reactData.fullNodeMaps = nodeMaps;
};
const updateZindex = () => {
if (reactData.panelIndex < getLastZIndex()) {
reactData.panelIndex = nextZIndex();
}
};
const updatePlacement = () => {
return nextTick().then(() => {
const { placement } = props;
const { panelIndex } = reactData;
const el = refElem.value;
const panelElem = refOptionPanel.value;
const btnTransfer = computeBtnTransfer.value;
if (panelElem && el) {
const targetHeight = el.offsetHeight;
const targetWidth = el.offsetWidth;
const panelHeight = panelElem.offsetHeight;
const panelWidth = panelElem.offsetWidth;
const marginSize = 5;
const panelStyle = {
zIndex: panelIndex
};
const { boundingTop, boundingLeft, visibleHeight, visibleWidth } = getAbsolutePos(el);
let panelPlacement = 'bottom';
if (btnTransfer) {
let left = boundingLeft;
let top = boundingTop + targetHeight;
if (placement === 'top') {
panelPlacement = 'top';
top = boundingTop - panelHeight;
}
else if (!placement) {
// 如果下面不够放，则向上
if (top + panelHeight + marginSize > visibleHeight) {
panelPlacement = 'top';
top = boundingTop - panelHeight;
}
// 如果上面不够放，则向下（优先）
if (top < marginSize) {
panelPlacement = 'bottom';
top = boundingTop + targetHeight;
}
}
// 如果溢出右边
if (left + panelWidth + marginSize > visibleWidth) {
left -= left + panelWidth + marginSize - visibleWidth;
}
// 如果溢出左边
if (left < marginSize) {
left = marginSize;
}
Object.assign(panelStyle, {
left: `${left}px`,
top: `${top}px`,
minWidth: `${targetWidth}px`
});
}
else {
if (placement === 'top') {
panelPlacement = 'top';
panelStyle.bottom = `${targetHeight}px`;
}
else if (!placement) {
// 如果下面不够放，则向上
if (boundingTop + targetHeight + panelHeight > visibleHeight) {
// 如果上面不够放，则向下（优先）
if (boundingTop - targetHeight - panelHeight > marginSize) {
panelPlacement = 'top';
panelStyle.bottom = `${targetHeight}px`;
}
}
}
}
reactData.panelStyle = panelStyle;
reactData.panelPlacement = panelPlacement;
return nextTick();
}
});
};
const showOptionPanel = () => {
const { loading } = props;
const isDisabled = computeIsDisabled.value;
if (!loading && !isDisabled) {
clearTimeout(internalData.hpTimeout);
if (!reactData.initialized) {
reactData.initialized = true;
}
reactData.isActivated = true;
reactData.isAniVisible = true;
setTimeout(() => {
reactData.visiblePanel = true;
}, 10);
updateZindex();
updatePlacement();
}
};
const hideOptionPanel = () => {
reactData.visiblePanel = false;
internalData.hpTimeout = setTimeout(() => {
reactData.isAniVisible = false;
}, 350);
};
const changeEvent = (evnt, selectValue) => {
const { fullNodeMaps } = reactData;
emitModel(selectValue);
if (selectValue !== props.modelValue) {
const cacheItem = fullNodeMaps[selectValue];
dispatchEvent('change', { value: selectValue, option: cacheItem ? cacheItem.item : null }, evnt);
// 自动更新校验状态
if ($xeForm && formItemInfo) {
$xeForm.triggerItemEvent(evnt, formItemInfo.itemConfig.field, selectValue);
}
}
};
const clearValueEvent = (evnt, selectValue) => {
changeEvent(evnt, selectValue);
dispatchEvent('clear', { value: selectValue }, evnt);
};
const clearEvent = (params, evnt) => {
clearValueEvent(evnt, null);
hideOptionPanel();
};
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 = () => {
hideOptionPanel();
};
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 togglePanelEvent = (params) => {
const { $event } = params;
$event.preventDefault();
if (reactData.triggerFocusPanel) {
reactData.triggerFocusPanel = false;
}
else {
if (reactData.visiblePanel) {
hideOptionPanel();
}
else {
showOptionPanel();
}
}
};
const nodeClickEvent = (params) => {
const { $event } = params;
dispatchEvent('node-click', params, $event);
};
const radioChangeEvent = (params) => {
const { value, $event } = params;
changeEvent($event, value);
hideOptionPanel();
};
const checkboxChangeEvent = (params) => {
const { value, $event } = params;
changeEvent($event, value);
};
const loadSuccessEvent = () => {
cacheDataMap();
};
const treeSelectPrivateMethods = {};
Object.assign($xeTreeSelect, treeSelectMethods, treeSelectPrivateMethods);
const renderVN = () => {
const { className, modelValue, multiple, options, loading } = props;
const { initialized, isActivated, isAniVisible, visiblePanel } = 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 || props.popupClassName;
const treeOpts = computeTreeOpts.value;
const treeNodeOpts = computeTreeNodeOpts.value;
const treeCheckboxOpts = computeTreeCheckboxOpts.value;
const treeRadioOpts = computeTreeRadioOpts.value;
const nodeKeyField = computeNodeKeyField.value;
const labelField = computeLabelField.value;
const valueField = computeValueField.value;
const childrenField = computeChildrenField.value;
const parentField = computeParentField.value;
const hasChildField = computeHasChildField.value;
if (formReadonly) {
return h('div', {
ref: refElem,
class: ['vxe-tree-select--readonly', className]
}, [
h('span', {
class: 'vxe-tree-select-label'
}, selectLabel)
]);
}
return h('div', {
ref: refElem,
class: ['vxe-tree-select', className ? (XEUtils.isFunction(className) ? className({ $treeSelect: $xeTreeSelect }) : className) : '', {
[`size--${vSize}`]: vSize,
'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,
readonly: true,
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,
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-tree-select--panel', popupClassName ? (XEUtils.isFunction(popupClassName) ? popupClassName({ $treeSelect: $xeTreeSelect }) : popupClassName) : '', {
[`size--${vSize}`]: vSize,
'is--transfer': btnTransfer,
'ani--leave': !loading && isAniVisible,
'ani--enter': !loading && visiblePanel
}],
placement: reactData.panelPlacement,
style: reactData.panelStyle
}, initialized
? [
h('div', {
class: 'vxe-tree-select--panel-wrapper'
}, [
headerSlot
? h('div', {
class: 'vxe-tree-select--panel-header'
}, headerSlot({}))
: renderEmptyElement($xeTreeSelect),
h('div', {
class: 'vxe-tree-select--panel-body'
}, [
h('div', {
ref: refTreeWrapper,
class: 'vxe-tree-select-tree--wrapper',
style: popupWrapperStyle
}, [
h(VxeTreeComponent, {
class: 'vxe-tree-select--tree',
data: options,
indent: treeOpts.indent,
showRadio: !multiple,
radioConfig: treeRadioOpts,
checkNodeKey: multiple ? null : modelValue,
showCheckbox: !!multiple,
checkNodeKeys: multiple ? modelValue : null,
checkboxConfig: treeCheckboxOpts,
titleField: labelField,
valueField: valueField,
keyField: nodeKeyField,
childrenField: treeOpts.childrenField || childrenField,
parentField: treeOpts.parentField || parentField,
hasChildField: treeOpts.hasChildField || hasChildField,
accordion: treeOpts.accordion,
expandAll: treeOpts.expandAll,
nodeConfig: treeNodeOpts,
lazy: treeOpts.lazy,
loadMethod: treeOpts.loadMethod,
toggleMethod: treeOpts.toggleMethod,
transform: treeOpts.transform,
trigger: treeOpts.trigger,
showIcon: treeOpts.showIcon,
showLine: treeOpts.showLine,
iconOpen: treeOpts.iconOpen,
iconLoaded: treeOpts.iconLoaded,
iconClose: treeOpts.iconClose,
onNodeClick: nodeClickEvent,
onRadioChange: radioChangeEvent,
onCheckboxChange: checkboxChangeEvent,
onLoadSuccess: loadSuccessEvent
})
])
]),
footerSlot
? h('div', {
class: 'vxe-tree-select--panel-footer'
}, footerSlot({}))
: renderEmptyElement($xeTreeSelect)
])
]
: [])
])
]);
};
watch(() => props.options, () => {
cacheDataMap();
});
cacheDataMap();
onMounted(() => {
globalEvents.on($xeTreeSelect, 'mousewheel', handleGlobalMousewheelEvent);
globalEvents.on($xeTreeSelect, 'mousedown', handleGlobalMousedownEvent);
globalEvents.on($xeTreeSelect, 'blur', handleGlobalBlurEvent);
});
onUnmounted(() => {
globalEvents.off($xeTreeSelect, 'mousewheel');
globalEvents.off($xeTreeSelect, 'mousedown');
globalEvents.off($xeTreeSelect, 'blur');
});
provide('$xeTreeSelect', $xeTreeSelect);
$xeTreeSelect.renderVN = renderVN;
return $xeTreeSelect;
},
render() {
return this.renderVN();
}
});