<script lang="tsx">
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import type { ContextMenuItem, ItemContentProps, Axis } from './typing';
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import type { FunctionalComponent, CSSProperties, PropType } from 'vue';
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import { defineComponent, nextTick, onMounted, computed, ref, unref, onUnmounted } from 'vue';
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import Icon from '@/components/Icon/Icon.vue';
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import { Menu, Divider } from 'ant-design-vue';
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const prefixCls = 'context-menu';
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const props = {
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width: { type: Number, default: 156 },
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customEvent: { type: Object as PropType<Event>, default: null },
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styles: { type: Object as PropType<CSSProperties> },
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showIcon: { type: Boolean, default: true },
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axis: {
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// The position of the right mouse button click
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type: Object as PropType<Axis>,
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default() {
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return { x: 0, y: 0 };
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},
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},
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items: {
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// The most important list, if not, will not be displayed
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type: Array as PropType<ContextMenuItem[]>,
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default() {
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return [];
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},
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},
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};
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const ItemContent: FunctionalComponent<ItemContentProps> = (props) => {
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const { item } = props;
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return (
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<span
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style="display: inline-block; width: 100%; "
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class="px-4"
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onClick={props.handler.bind(null, item)}
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>
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{props.showIcon && item.icon && <Icon class="mr-2" icon={item.icon} />}
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<span>{item.label}</span>
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</span>
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);
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};
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export default defineComponent({
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name: 'ContextMenu',
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props,
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setup(props) {
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const wrapRef = ref(null);
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const showRef = ref(false);
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const getStyle = computed((): CSSProperties => {
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const { axis, items, styles, width } = props;
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const { x, y } = axis || { x: 0, y: 0 };
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const menuHeight = (items || []).length * 40;
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const menuWidth = width;
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const body = document.body;
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const left = body.clientWidth < x + menuWidth ? x - menuWidth : x;
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const top = body.clientHeight < y + menuHeight ? y - menuHeight : y;
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return {
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...styles,
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position: 'absolute',
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width: `${width}px`,
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left: `${left + 1}px`,
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top: `${top + 1}px`,
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zIndex: 9999,
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};
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});
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onMounted(() => {
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nextTick(() => (showRef.value = true));
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});
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onUnmounted(() => {
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const el = unref(wrapRef);
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el && document.body.removeChild(el);
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});
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function handleAction(item: ContextMenuItem, e: MouseEvent) {
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const { handler, disabled } = item;
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if (disabled) {
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return;
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}
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showRef.value = false;
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e?.stopPropagation();
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e?.preventDefault();
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handler?.();
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}
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function renderMenuItem(items: ContextMenuItem[]) {
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const visibleItems = items.filter((item) => !item.hidden);
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return visibleItems.map((item) => {
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const { disabled, label, children, divider = false } = item;
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const contentProps = {
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item,
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handler: handleAction,
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showIcon: props.showIcon,
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};
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if (!children || children.length === 0) {
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return (
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<>
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<Menu.Item disabled={disabled} class={`${prefixCls}__item`} key={label}>
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<ItemContent {...contentProps} />
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</Menu.Item>
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{divider ? <Divider key={`d-${label}`} /> : null}
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</>
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);
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}
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if (!unref(showRef)) return null;
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return (
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<Menu.SubMenu key={label} disabled={disabled} popupClassName={`${prefixCls}__popup`}>
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{{
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title: () => <ItemContent {...contentProps} />,
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default: () => renderMenuItem(children),
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}}
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</Menu.SubMenu>
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);
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});
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}
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return () => {
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if (!unref(showRef)) {
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return null;
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}
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const { items } = props;
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return (
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<div class={prefixCls}>
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<Menu inlineIndent={12} mode="vertical" ref={wrapRef} style={unref(getStyle)}>
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{renderMenuItem(items)}
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</Menu>
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</div>
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);
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};
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},
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});
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</script>
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<style lang="less">
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@default-height: 42px !important;
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@small-height: 36px !important;
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@large-height: 36px !important;
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.item-style() {
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li {
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display: inline-block;
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width: 100%;
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height: @default-height;
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margin: 0 !important;
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line-height: @default-height;
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span {
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line-height: @default-height;
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}
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> div {
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margin: 0 !important;
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}
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&:not(.ant-menu-item-disabled):hover {
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background-color: @item-hover-bg;
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color: @text-color-base;
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}
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}
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}
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.context-menu {
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display: block;
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position: fixed;
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z-index: 200;
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top: 0;
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left: 0;
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width: 156px;
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margin: 0;
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border: 1px solid rgb(0 0 0 / 8%);
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border-radius: 0.25rem;
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background-clip: padding-box;
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background-color: @component-background;
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box-shadow: 0 2px 2px 0 rgb(0 0 0 / 14%), 0 3px 1px -2px rgb(0 0 0 / 10%),
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0 1px 5px 0 rgb(0 0 0 / 6%);
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list-style: none;
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user-select: none;
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&__item {
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margin: 0 !important;
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}
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.item-style();
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.ant-divider {
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margin: 0;
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}
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&__popup {
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.ant-divider {
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margin: 0;
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}
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.item-style();
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}
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.ant-menu-submenu-title,
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.ant-menu-item {
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padding: 0 !important;
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}
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}
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</style>
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