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enhance(client): improve tooltip position calclation

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This commit is contained in:
syuilo 2022-02-08 15:37:31 +09:00
parent e5d6d1dcf0
commit 5792eea1b1
2 changed files with 130 additions and 21 deletions
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2
packages/client/src/components/chart-tooltip.vue
View file

@ -1,5 +1,5 @@
<template>
<MkTooltip ref="tooltip" :showing="showing" :x="x" :y="y" :max-width="340" @closed="emit('closed')">
<MkTooltip ref="tooltip" :showing="showing" :x="x" :y="y" :max-width="340" :direction="'left'" :inner-margin="16" @closed="emit('closed')">
<div v-if="title" class="qpcyisrl">
<div class="title">{{ title }}</div>
<div v-for="x in series" class="series">

149
packages/client/src/components/ui/tooltip.vue
View file

@ -17,8 +17,12 @@ const props = withDefaults(defineProps<{
y?: number;
text?: string;
maxWidth?: number;
direction?: 'top' | 'bottom' | 'right' | 'left';
innerMargin?: number;
}>(), {
maxWidth: 250,
direction: 'top',
innerMargin: 0,
});
const emit = defineEmits<{
@ -34,39 +38,144 @@ const setPosition = () => {
const contentWidth = el.value.offsetWidth;
const contentHeight = el.value.offsetHeight;
let left: number;
let top: number;
let rect: DOMRect;
if (props.targetElement) {
rect = props.targetElement.getBoundingClientRect();
left = rect.left + window.pageXOffset + (props.targetElement.offsetWidth / 2);
top = rect.top + window.pageYOffset - contentHeight;
el.value.style.transformOrigin = 'center bottom';
} else {
left = props.x;
top = props.y - contentHeight;
}
left -= (el.value.offsetWidth / 2);
const calcPosWhenTop = () => {
let left: number;
let top: number;
if (left + contentWidth - window.pageXOffset > window.innerWidth) {
left = window.innerWidth - contentWidth + window.pageXOffset - 1;
}
// ツールチップを上に向かって表示するスペースがなければ下に向かって出す
if (top - window.pageYOffset < 0) {
if (props.targetElement) {
top = rect.top + window.pageYOffset + props.targetElement.offsetHeight;
el.value.style.transformOrigin = 'center top';
left = rect.left + window.pageXOffset + (props.targetElement.offsetWidth / 2);
top = (rect.top + window.pageYOffset - contentHeight) - props.innerMargin;
} else {
left = props.x;
top = (props.y - contentHeight) - props.innerMargin;
}
left -= (el.value.offsetWidth / 2);
if (left + contentWidth - window.pageXOffset > window.innerWidth) {
left = window.innerWidth - contentWidth + window.pageXOffset - 1;
}
return [left, top];
}
const calcPosWhenBottom = () => {
let left: number;
let top: number;
if (props.targetElement) {
left = rect.left + window.pageXOffset + (props.targetElement.offsetWidth / 2);
top = (rect.top + window.pageYOffset + props.targetElement.offsetHeight) + props.innerMargin;
} else {
left = props.x;
top = (props.y) + props.innerMargin;
}
left -= (el.value.offsetWidth / 2);
if (left + contentWidth - window.pageXOffset > window.innerWidth) {
left = window.innerWidth - contentWidth + window.pageXOffset - 1;
}
return [left, top];
}
const calcPosWhenLeft = () => {
let left: number;
let top: number;
if (props.targetElement) {
left = (rect.left + window.pageXOffset - contentWidth) - props.innerMargin;
top = rect.top + window.pageYOffset + (props.targetElement.offsetHeight / 2);
} else {
left = (props.x - contentWidth) - props.innerMargin;
top = props.y;
}
top -= (el.value.offsetHeight / 2);
if (top + contentHeight - window.pageYOffset > window.innerHeight) {
top = window.innerHeight - contentHeight + window.pageYOffset - 1;
}
return [left, top];
}
const calcPosWhenRight = () => {
let left: number;
let top: number;
if (props.targetElement) {
left = (rect.left + window.pageXOffset) + props.innerMargin;
top = rect.top + window.pageYOffset + (props.targetElement.offsetHeight / 2);
} else {
left = props.x + props.innerMargin;
top = props.y;
}
top -= (el.value.offsetHeight / 2);
if (top + contentHeight - window.pageYOffset > window.innerHeight) {
top = window.innerHeight - contentHeight + window.pageYOffset - 1;
}
return [left, top];
}
const calc = (): {
left: number;
top: number;
transformOrigin: string;
} => {
switch (props.direction) {
case 'top': {
const [left, top] = calcPosWhenTop();
// ツールチップを上に向かって表示するスペースがなければ下に向かって出す
if (top - window.pageYOffset < 0) {
const [left, top] = calcPosWhenBottom();
return { left, top, transformOrigin: 'center top' };
}
return { left, top, transformOrigin: 'center bottom' };
}
case 'bottom': {
const [left, top] = calcPosWhenBottom();
// TODO: ツールチップを下に向かって表示するスペースがなければ上に向かって出す
return { left, top, transformOrigin: 'center top' };
}
case 'left': {
const [left, top] = calcPosWhenLeft();
// ツールチップを左に向かって表示するスペースがなければ右に向かって出す
if (left - window.pageXOffset < 0) {
const [left, top] = calcPosWhenRight();
return { left, top, transformOrigin: 'left center' };
}
return { left, top, transformOrigin: 'right center' };
}
case 'right': {
const [left, top] = calcPosWhenRight();
// TODO: ツールチップを右に向かって表示するスペースがなければ左に向かって出す
return { left, top, transformOrigin: 'left center' };
}
}
return null as never;
}
const { left, top, transformOrigin } = calc();
el.value.style.transformOrigin = transformOrigin;
el.value.style.left = left + 'px';
el.value.style.top = top + 'px';
};