primevue
Version:
[](https://opensource.org/licenses/MIT) [](https://badge.fury.io/js/primevue) [ • 20 kB
JavaScript
import { ZIndexUtils, DomHandler, ConnectedOverlayScrollHandler } from 'primevue/utils';
import OverlayEventBus from 'primevue/overlayeventbus';
import Tree from 'primevue/tree';
import Ripple from 'primevue/ripple';
import { resolveComponent, openBlock, createBlock, createVNode, renderSlot, Fragment, createTextVNode, toDisplayString, renderList, createCommentVNode, Teleport, Transition, withCtx } from 'vue';
var script = {
name: 'TreeSelect',
emits: ['update:modelValue', 'before-show', 'before-hide', 'change', 'show', 'hide', 'node-select', 'node-unselect', 'node-expand', 'node-collapse'],
props: {
modelValue: null,
options: Array,
scrollHeight: {
type: String,
default: '400px'
},
placeholder: String,
disabled: Boolean,
tabindex: String,
inputId: String,
ariaLabelledBy: null,
selectionMode: {
type: String,
default: 'single'
},
panelClass: {
type: String,
default: null
},
appendTo: {
type: String,
default: 'body'
},
emptyMessage: {
type: String,
default: null
},
display: {
type: String,
default: 'comma'
},
metaKeySelection: {
type: Boolean,
default: true
}
},
watch: {
modelValue: {
handler: function() {
if (!this.selfChange) {
this.updateTreeState();
}
this.selfChange = false;
},
immediate: true
},
options() {
this.updateTreeState();
}
},
data() {
return {
focused: false,
overlayVisible: false,
expandedKeys: {}
};
},
outsideClickListener: null,
resizeListener: null,
scrollHandler: null,
overlay: null,
selfChange: false,
beforeUnmount() {
this.unbindOutsideClickListener();
this.unbindResizeListener();
if (this.scrollHandler) {
this.scrollHandler.destroy();
this.scrollHandler = null;
}
if (this.overlay) {
ZIndexUtils.clear(this.overlay);
this.overlay = null;
}
},
mounted() {
this.updateTreeState();
},
methods: {
show() {
this.$emit('before-show');
this.overlayVisible = true;
},
hide() {
this.$emit('before-hide');
this.overlayVisible = false;
},
onFocus() {
this.focused = true;
},
onBlur() {
this.focused = false;
},
onClick(event) {
if (!this.disabled && (!this.overlay || !this.overlay.contains(event.target)) && !DomHandler.hasClass(event.target, 'p-treeselect-close')) {
if (this.overlayVisible)
this.hide();
else
this.show();
this.$refs.focusInput.focus();
}
},
onSelectionChange(keys) {
this.selfChange = true;
this.$emit('update:modelValue', keys);
this.$emit('change', keys);
},
onNodeSelect(node) {
this.$emit('node-select', node);
if (this.selectionMode === 'single') {
this.hide();
}
},
onNodeUnselect(node) {
this.$emit('node-unselect', node);
},
onNodeToggle(keys) {
this.expandedKeys = keys;
},
onKeyDown(event) {
switch(event.which) {
//down
case 40:
if (!this.overlayVisible && event.altKey) {
this.show();
event.preventDefault();
}
break;
//space
case 32:
if (!this.overlayVisible) {
this.show();
event.preventDefault();
}
break;
//enter and escape
case 13:
case 27:
if (this.overlayVisible) {
this.hide();
event.preventDefault();
}
break;
//tab
case 9:
this.hide();
break;
}
},
onOverlayEnter(el) {
ZIndexUtils.set('overlay', el, this.$primevue.config.zIndex.overlay);
this.alignOverlay();
this.bindOutsideClickListener();
this.bindScrollListener();
this.bindResizeListener();
this.$emit('show');
},
onOverlayLeave() {
this.unbindOutsideClickListener();
this.unbindScrollListener();
this.unbindResizeListener();
this.$emit('hide');
this.overlay = null;
},
onOverlayAfterLeave(el) {
ZIndexUtils.clear(el);
},
alignOverlay() {
if (this.appendDisabled) {
DomHandler.relativePosition(this.overlay, this.$el);
}
else {
this.overlay.style.minWidth = DomHandler.getOuterWidth(this.$el) + 'px';
DomHandler.absolutePosition(this.overlay, this.$el);
}
},
bindOutsideClickListener() {
if (!this.outsideClickListener) {
this.outsideClickListener = (event) => {
if (this.overlayVisible && this.isOutsideClicked(event)) {
this.hide();
}
};
document.addEventListener('click', this.outsideClickListener);
}
},
unbindOutsideClickListener() {
if (this.outsideClickListener) {
document.removeEventListener('click', this.outsideClickListener);
this.outsideClickListener = null;
}
},
bindScrollListener() {
if (!this.scrollHandler) {
this.scrollHandler = new ConnectedOverlayScrollHandler(this.$refs.container, () => {
if (this.overlayVisible) {
this.hide();
}
});
}
this.scrollHandler.bindScrollListener();
},
unbindScrollListener() {
if (this.scrollHandler) {
this.scrollHandler.unbindScrollListener();
}
},
bindResizeListener() {
if (!this.resizeListener) {
this.resizeListener = () => {
if (this.overlayVisible) {
this.hide();
}
};
window.addEventListener('resize', this.resizeListener);
}
},
unbindResizeListener() {
if (this.resizeListener) {
window.removeEventListener('resize', this.resizeListener);
this.resizeListener = null;
}
},
isOutsideClicked(event) {
return !(this.$el.isSameNode(event.target) || this.$el.contains(event.target) || (this.overlay && this.overlay.contains(event.target)));
},
overlayRef(el) {
this.overlay = el;
},
onOverlayClick(event) {
OverlayEventBus.emit('overlay-click', {
originalEvent: event,
target: this.$el
});
},
findSelectedNodes(node, keys, selectedNodes) {
if (node) {
if (this.isSelected(node, keys)) {
selectedNodes.push(node);
delete keys[node.key];
}
if (Object.keys(keys).length && node.children) {
for (let childNode of node.children) {
this.findSelectedNodes(childNode, keys, selectedNodes);
}
}
}
else {
for (let childNode of this.options) {
this.findSelectedNodes(childNode, keys, selectedNodes);
}
}
},
isSelected(node, keys) {
return this.selectionMode === 'checkbox' ? keys[node.key] && keys[node.key].checked : keys[node.key];
},
updateTreeState() {
let keys = {...this.modelValue};
this.expandedKeys = {};
if (keys && this.options) {
this.updateTreeBranchState(null, null, keys);
}
},
updateTreeBranchState(node, path, keys) {
if (node) {
if (this.isSelected(node, keys)) {
this.expandPath(path);
delete keys[node.key];
}
if (Object.keys(keys).length && node.children) {
for (let childNode of node.children) {
path.push(node.key);
this.updateTreeBranchState(childNode, path, keys);
}
}
}
else {
for (let childNode of this.options) {
this.updateTreeBranchState(childNode, [], keys);
}
}
},
expandPath(path) {
if (path.length > 0) {
for (let key of path) {
this.expandedKeys[key] = true;
}
}
}
},
computed: {
containerClass() {
return [
'p-treeselect p-component p-inputwrapper',
{
'p-treeselect-chip': this.display === 'chip',
'p-disabled': this.disabled,
'p-focus': this.focused,
'p-inputwrapper-filled': !this.emptyValue,
'p-inputwrapper-focus': this.focused || this.overlayVisible
}
];
},
labelClass() {
return [
'p-treeselect-label',
{
'p-placeholder': this.label === this.placeholder,
'p-treeselect-label-empty': !this.placeholder && this.emptyValue
}
];
},
panelStyleClass() {
return ['p-treeselect-panel p-component', this.panelClass, {
'p-input-filled': this.$primevue.config.inputStyle === 'filled',
'p-ripple-disabled': this.$primevue.config.ripple === false
}];
},
selectedNodes() {
let selectedNodes = [];
if (this.modelValue && this.options) {
let keys = {...this.modelValue};
this.findSelectedNodes(null, keys, selectedNodes);
}
return selectedNodes;
},
label() {
let value = this.selectedNodes;
return value.length ? value.map(node => node.label).join(', '): this.placeholder;
},
emptyMessageText() {
return this.emptyMessage || this.$primevue.config.locale.emptyMessage;
},
emptyValue() {
return !this.modelValue || Object.keys(this.modelValue).length === 0;
},
emptyOptions() {
return !this.options || this.options.length === 0;
},
appendDisabled() {
return this.appendTo === 'self';
},
appendTarget() {
return this.appendDisabled ? null : this.appendTo;
}
},
components: {
'TSTree': Tree
},
directives: {
'ripple': Ripple
}
};
const _hoisted_1 = { class: "p-hidden-accessible" };
const _hoisted_2 = { class: "p-treeselect-label-container" };
const _hoisted_3 = { class: "p-treeselect-token-label" };
const _hoisted_4 = /*#__PURE__*/createVNode("div", { class: "p-treeselect-trigger" }, [
/*#__PURE__*/createVNode("span", { class: "p-treeselect-trigger-icon pi pi-chevron-down" })
], -1);
const _hoisted_5 = {
key: 0,
class: "p-treeselect-empty-message"
};
function render(_ctx, _cache, $props, $setup, $data, $options) {
const _component_TSTree = resolveComponent("TSTree");
return (openBlock(), createBlock("div", {
ref: "container",
class: $options.containerClass,
onClick: _cache[7] || (_cache[7] = (...args) => ($options.onClick && $options.onClick(...args)))
}, [
createVNode("div", _hoisted_1, [
createVNode("input", {
ref: "focusInput",
type: "text",
role: "listbox",
id: $props.inputId,
readonly: "",
disabled: $props.disabled,
onFocus: _cache[1] || (_cache[1] = (...args) => ($options.onFocus && $options.onFocus(...args))),
onBlur: _cache[2] || (_cache[2] = (...args) => ($options.onBlur && $options.onBlur(...args))),
onKeydown: _cache[3] || (_cache[3] = (...args) => ($options.onKeyDown && $options.onKeyDown(...args))),
tabindex: $props.tabindex,
"aria-haspopup": "true",
"aria-expanded": $data.overlayVisible,
"aria-labelledby": $props.ariaLabelledBy
}, null, 40, ["id", "disabled", "tabindex", "aria-expanded", "aria-labelledby"])
]),
createVNode("div", _hoisted_2, [
createVNode("div", { class: $options.labelClass }, [
renderSlot(_ctx.$slots, "value", {
value: $options.selectedNodes,
placeholder: $props.placeholder
}, () => [
($props.display === 'comma')
? (openBlock(), createBlock(Fragment, { key: 0 }, [
createTextVNode(toDisplayString($options.label || 'empty'), 1)
], 64))
: ($props.display === 'chip')
? (openBlock(), createBlock(Fragment, { key: 1 }, [
(openBlock(true), createBlock(Fragment, null, renderList($options.selectedNodes, (node) => {
return (openBlock(), createBlock("div", {
class: "p-treeselect-token",
key: node.key
}, [
createVNode("span", _hoisted_3, toDisplayString(node.label), 1)
]))
}), 128)),
($options.emptyValue)
? (openBlock(), createBlock(Fragment, { key: 0 }, [
createTextVNode(toDisplayString($props.placeholder || 'empty'), 1)
], 64))
: createCommentVNode("", true)
], 64))
: createCommentVNode("", true)
])
], 2)
]),
_hoisted_4,
(openBlock(), createBlock(Teleport, {
to: $options.appendTarget,
disabled: $options.appendDisabled
}, [
createVNode(Transition, {
name: "p-connected-overlay",
onEnter: $options.onOverlayEnter,
onLeave: $options.onOverlayLeave,
onAfterLeave: $options.onOverlayAfterLeave
}, {
default: withCtx(() => [
($data.overlayVisible)
? (openBlock(), createBlock("div", {
key: 0,
ref: $options.overlayRef,
onClick: _cache[6] || (_cache[6] = (...args) => ($options.onOverlayClick && $options.onOverlayClick(...args))),
class: $options.panelStyleClass
}, [
renderSlot(_ctx.$slots, "header", {
value: $props.modelValue,
options: $props.options
}),
createVNode("div", {
class: "p-treeselect-items-wrapper",
style: {'max-height': $props.scrollHeight}
}, [
createVNode(_component_TSTree, {
value: $props.options,
selectionMode: $props.selectionMode,
"onUpdate:selectionKeys": $options.onSelectionChange,
selectionKeys: $props.modelValue,
expandedKeys: $data.expandedKeys,
"onUpdate:expandedKeys": $options.onNodeToggle,
metaKeySelection: $props.metaKeySelection,
onNodeExpand: _cache[4] || (_cache[4] = $event => (_ctx.$emit('node-expand', $event))),
onNodeCollapse: _cache[5] || (_cache[5] = $event => (_ctx.$emit('node-collapse', $event))),
onNodeSelect: $options.onNodeSelect,
onNodeUnselect: $options.onNodeUnselect
}, null, 8, ["value", "selectionMode", "onUpdate:selectionKeys", "selectionKeys", "expandedKeys", "onUpdate:expandedKeys", "metaKeySelection", "onNodeSelect", "onNodeUnselect"]),
($options.emptyOptions)
? (openBlock(), createBlock("div", _hoisted_5, [
renderSlot(_ctx.$slots, "empty", {}, () => [
createTextVNode(toDisplayString($options.emptyMessageText), 1)
])
]))
: createCommentVNode("", true)
], 4),
renderSlot(_ctx.$slots, "footer", {
value: $props.modelValue,
options: $props.options
})
], 2))
: createCommentVNode("", true)
]),
_: 3
}, 8, ["onEnter", "onLeave", "onAfterLeave"])
], 8, ["to", "disabled"]))
], 2))
}
function styleInject(css, ref) {
if ( ref === void 0 ) ref = {};
var insertAt = ref.insertAt;
if (!css || typeof document === 'undefined') { return; }
var head = document.head || document.getElementsByTagName('head')[0];
var style = document.createElement('style');
style.type = 'text/css';
if (insertAt === 'top') {
if (head.firstChild) {
head.insertBefore(style, head.firstChild);
} else {
head.appendChild(style);
}
} else {
head.appendChild(style);
}
if (style.styleSheet) {
style.styleSheet.cssText = css;
} else {
style.appendChild(document.createTextNode(css));
}
}
var css_248z = "\n.p-treeselect {\n display: -webkit-inline-box;\n display: -ms-inline-flexbox;\n display: inline-flex;\n cursor: pointer;\n position: relative;\n -webkit-user-select: none;\n -moz-user-select: none;\n -ms-user-select: none;\n user-select: none;\n}\n.p-treeselect-trigger {\n display: -webkit-box;\n display: -ms-flexbox;\n display: flex;\n -webkit-box-align: center;\n -ms-flex-align: center;\n align-items: center;\n -webkit-box-pack: center;\n -ms-flex-pack: center;\n justify-content: center;\n -ms-flex-negative: 0;\n flex-shrink: 0;\n}\n.p-treeselect-label-container {\n overflow: hidden;\n -webkit-box-flex: 1;\n -ms-flex: 1 1 auto;\n flex: 1 1 auto;\n cursor: pointer;\n}\n.p-treeselect-label {\n display: block;\n white-space: nowrap;\n cursor: pointer;\n overflow: hidden;\n text-overflow: ellipsis;\n}\n.p-treeselect-label-empty {\n overflow: hidden;\n visibility: hidden;\n}\n.p-treeselect-token {\n cursor: default;\n display: -webkit-inline-box;\n display: -ms-inline-flexbox;\n display: inline-flex;\n -webkit-box-align: center;\n -ms-flex-align: center;\n align-items: center;\n -webkit-box-flex: 0;\n -ms-flex: 0 0 auto;\n flex: 0 0 auto;\n}\n.p-treeselect .p-treeselect-panel {\n min-width: 100%;\n}\n.p-treeselect-panel {\n position: absolute;\n}\n.p-treeselect-items-wrapper {\n overflow: auto;\n}\n.p-fluid .p-treeselect {\n display: -webkit-box;\n display: -ms-flexbox;\n display: flex;\n}\n";
styleInject(css_248z);
script.render = render;
export default script;