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enhance(client): tweak contextmenu position calculation

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This commit is contained in:
syuilo 2023-02-25 13:44:37 +09:00
parent 3c01c0cbf2
commit e7a1046b87
3 changed files with 45 additions and 23 deletions
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35
packages/frontend/src/components/MkMenu.child.vue
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@ -1,11 +1,11 @@
<template>
<div ref="el" class="sfhdhdhr">
<MkMenu ref="menu" :items="items" :align="align" :width="width" :as-drawer="false" @close="onChildClosed"/>
<div ref="el" :class="$style.root">
<MkMenu :items="items" :align="align" :width="width" :as-drawer="false" @close="onChildClosed"/>
</div>
</template>
<script lang="ts" setup>
import { nextTick, onMounted, shallowRef, watch } from 'vue';
import { nextTick, onMounted, onUnmounted, shallowRef, watch } from 'vue';
import MkMenu from './MkMenu.vue';
import { MenuItem } from '@/types/menu';
@ -25,11 +25,21 @@ const emit = defineEmits<{
const el = shallowRef<HTMLElement>();
const align = 'left';
const SCROLLBAR_THICKNESS = 16;
function setPosition() {
const rootRect = props.rootElement.getBoundingClientRect();
const rect = props.targetElement.getBoundingClientRect();
const left = props.targetElement.offsetWidth;
const top = (rect.top - rootRect.top) - 8;
const parentRect = props.targetElement.getBoundingClientRect();
const myRect = el.value.getBoundingClientRect();
let left = props.targetElement.offsetWidth;
let top = (parentRect.top - rootRect.top) - 8;
if (rootRect.left + left + myRect.width >= (window.innerWidth - SCROLLBAR_THICKNESS)) {
left = -myRect.width;
}
if (rootRect.top + top + myRect.height >= (window.innerHeight - SCROLLBAR_THICKNESS)) {
top = top - ((rootRect.top + top + myRect.height) - (window.innerHeight - SCROLLBAR_THICKNESS));
}
el.value.style.left = left + 'px';
el.value.style.top = top + 'px';
}
@ -46,13 +56,22 @@ watch(() => props.targetElement, () => {
setPosition();
});
const ro = new ResizeObserver((entries, observer) => {
setPosition();
});
onMounted(() => {
ro.observe(el.value);
setPosition();
nextTick(() => {
setPosition();
});
});
onUnmounted(() => {
ro.disconnect();
});
defineExpose({
checkHit: (ev: MouseEvent) => {
return (ev.target === el.value || el.value.contains(ev.target));
@ -60,8 +79,8 @@ defineExpose({
});
</script>
<style lang="scss" scoped>
.sfhdhdhr {
<style lang="scss" module>
.root {
position: absolute;
}
</style>