iceshrimp/src/client/components/ui/modal.vue
2021-03-05 16:59:43 +09:00

280 lines
6.7 KiB
Vue

<template>
<transition :name="$store.state.animation ? popup ? 'modal-popup' : 'modal' : ''" appear @after-leave="onClosed" @enter="$emit('opening')" @after-enter="childRendered">
<div v-show="manualShowing != null ? manualShowing : showing" class="mk-modal" v-hotkey.global="keymap" :style="{ pointerEvents: (manualShowing != null ? manualShowing : showing) ? 'auto' : 'none', '--transformOrigin': transformOrigin }">
<div class="bg _modalBg" @click="onBgClick"></div>
<div class="content" :class="{ popup, fixed, top: position === 'top' }" @click.self="onBgClick" ref="content">
<slot></slot>
</div>
</div>
</transition>
</template>
<script lang="ts">
import { defineComponent } from 'vue';
function getFixedContainer(el: Element | null): Element | null {
if (el == null || el.tagName === 'BODY') return null;
const position = window.getComputedStyle(el).getPropertyValue('position');
if (position === 'fixed') {
return el;
} else {
return getFixedContainer(el.parentElement);
}
}
export default defineComponent({
provide: {
modal: true
},
props: {
manualShowing: {
type: Boolean,
required: false,
default: null,
},
srcCenter: {
type: Boolean,
required: false
},
src: {
required: false,
},
position: {
required: false
}
},
emits: ['opening', 'click', 'esc', 'close', 'closed'],
data() {
return {
showing: true,
fixed: false,
transformOrigin: 'center',
contentClicking: false,
};
},
computed: {
keymap(): any {
return {
'esc': () => this.$emit('esc'),
};
},
popup(): boolean {
return this.src != null;
}
},
mounted() {
this.$watch('src', () => {
this.fixed = getFixedContainer(this.src) != null;
this.$nextTick(() => {
this.align();
});
}, { immediate: true });
this.$nextTick(() => {
const popover = this.$refs.content as any;
new ResizeObserver((entries, observer) => {
this.align();
}).observe(popover);
});
},
methods: {
align() {
if (!this.popup) return;
const popover = this.$refs.content as any;
if (popover == null) return;
const rect = this.src.getBoundingClientRect();
const width = popover.offsetWidth;
const height = popover.offsetHeight;
let left;
let top;
if (this.srcCenter) {
const x = rect.left + (this.fixed ? 0 : window.pageXOffset) + (this.src.offsetWidth / 2);
const y = rect.top + (this.fixed ? 0 : window.pageYOffset) + (this.src.offsetHeight / 2);
left = (x - (width / 2));
top = (y - (height / 2));
} else {
const x = rect.left + (this.fixed ? 0 : window.pageXOffset) + (this.src.offsetWidth / 2);
const y = rect.top + (this.fixed ? 0 : window.pageYOffset) + this.src.offsetHeight;
left = (x - (width / 2));
top = y;
}
if (this.fixed) {
if (left + width > window.innerWidth) {
left = window.innerWidth - width;
}
if (top + height > window.innerHeight) {
top = window.innerHeight - height;
}
} else {
if (left + width - window.pageXOffset > window.innerWidth) {
left = window.innerWidth - width + window.pageXOffset - 1;
}
if (top + height - window.pageYOffset > window.innerHeight) {
top = window.innerHeight - height + window.pageYOffset - 1;
}
}
if (top < 0) {
top = 0;
}
if (left < 0) {
left = 0;
}
if (top > rect.top + (this.fixed ? 0 : window.pageYOffset)) {
this.transformOrigin = 'center top';
} else {
this.transformOrigin = 'center';
}
popover.style.left = left + 'px';
popover.style.top = top + 'px';
},
childRendered() {
// モーダルコンテンツにマウスボタンが押され、コンテンツ外でマウスボタンが離されたときにモーダルバックグラウンドクリックと判定させないためにマウスイベントを監視しフラグ管理する
const content = this.$refs.content.children[0];
content.addEventListener('mousedown', e => {
this.contentClicking = true;
window.addEventListener('mouseup', e => {
// click イベントより先に mouseup イベントが発生するかもしれないのでちょっと待つ
setTimeout(() => {
this.contentClicking = false;
}, 100);
}, { passive: true, once: true });
}, { passive: true });
},
close() {
this.showing = false;
this.$emit('close');
},
onBgClick() {
if (this.contentClicking) return;
this.$emit('click');
},
onClosed() {
this.$emit('closed');
}
}
});
</script>
<style lang="scss">
.modal-popup-enter-active, .modal-popup-leave-active,
.modal-enter-from, .modal-leave-to {
> .content {
transform-origin: var(--transformOrigin);
}
}
</style>
<style lang="scss" scoped>
.modal-enter-active, .modal-leave-active {
// CSS的には無意味だけどこれが無いとVueが認識しない
transition: opacity 0.3s, transform 0.3s !important;
> .bg {
transition: opacity 0.3s !important;
}
> .content {
transition: opacity 0.3s, transform 0.3s !important;
}
}
.modal-enter-from, .modal-leave-to {
> .bg {
opacity: 0;
}
> .content {
pointer-events: none;
opacity: 0;
transform: scale(0.9);
}
}
.modal-popup-enter-active, .modal-popup-leave-active {
// CSS的には無意味だけどこれが無いとVueが認識しない
transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1) !important;
> .bg {
transition: opacity 0.3s !important;
}
> .content {
transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1) !important;
}
}
.modal-popup-enter-from, .modal-popup-leave-to {
> .bg {
opacity: 0;
}
> .content {
pointer-events: none;
opacity: 0;
transform: scale(0.9);
}
}
.mk-modal {
> .bg {
z-index: 10000;
}
> .content:not(.popup) {
position: fixed;
z-index: 10000;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
padding: 32px;
// TODO: mask-imageはiOSだとやたら重い。なんとかしたい
-webkit-mask-image: linear-gradient(0deg, rgba(0,0,0,0) 0%, rgba(0,0,0,1) 32px, rgba(0,0,0,1) calc(100% - 32px), rgba(0,0,0,0) 100%);
mask-image: linear-gradient(0deg, rgba(0,0,0,0) 0%, rgba(0,0,0,1) 32px, rgba(0,0,0,1) calc(100% - 32px), rgba(0,0,0,0) 100%);
overflow: auto;
display: flex;
@media (max-width: 500px) {
padding: 16px;
-webkit-mask-image: linear-gradient(0deg, rgba(0,0,0,0) 0%, rgba(0,0,0,1) 16px, rgba(0,0,0,1) calc(100% - 16px), rgba(0,0,0,0) 100%);
mask-image: linear-gradient(0deg, rgba(0,0,0,0) 0%, rgba(0,0,0,1) 16px, rgba(0,0,0,1) calc(100% - 16px), rgba(0,0,0,0) 100%);
}
> ::v-deep(*) {
margin: auto;
}
&.top {
> ::v-deep(*) {
margin-top: 0;
}
}
}
> .content.popup {
position: absolute;
z-index: 10000;
&.fixed {
position: fixed;
}
}
}
</style>