misskey/src/client/app/mobile/views/components/notes.vue
2018-11-11 21:17:51 +09:00

259 lines
5.6 KiB
Vue

<template>
<div class="mk-notes">
<slot name="head"></slot>
<slot name="empty" v-if="notes.length == 0 && !fetching && requestInitPromise == null"></slot>
<div class="placeholder" v-if="fetching">
<template v-for="i in 10">
<mk-note-skeleton :key="i"/>
</template>
</div>
<mk-error v-if="!fetching && requestInitPromise != null" @retry="resolveInitPromise"/>
<!-- トランジションを有効にするとなぜかメモリリークする -->
<component :is="!$store.state.device.reduceMotion ? 'transition-group' : 'div'" name="mk-notes" class="transition" tag="div">
<template v-for="(note, i) in _notes">
<mk-note :note="note" :key="note.id" @update:note="onNoteUpdated(i, $event)"/>
<p class="date" :key="note.id + '_date'" v-if="i != notes.length - 1 && note._date != _notes[i + 1]._date">
<span><fa icon="angle-up"/>{{ note._datetext }}</span>
<span><fa icon="angle-down"/>{{ _notes[i + 1]._datetext }}</span>
</p>
</template>
</component>
<footer v-if="more">
<button @click="loadMore" :disabled="moreFetching" :style="{ cursor: moreFetching ? 'wait' : 'pointer' }">
<template v-if="!moreFetching">{{ $t('@.load-more') }}</template>
<template v-if="moreFetching"><fa icon="spinner .pulse" fixed-width/></template>
</button>
</footer>
</div>
</template>
<script lang="ts">
import Vue from 'vue';
import i18n from '../../../i18n';
import shouldMuteNote from '../../../common/scripts/should-mute-note';
const displayLimit = 30;
export default Vue.extend({
i18n: i18n(),
props: {
more: {
type: Function,
required: false
}
},
data() {
return {
requestInitPromise: null as () => Promise<any[]>,
notes: [],
queue: [],
fetching: true,
moreFetching: false
};
},
computed: {
_notes(): any[] {
return (this.notes as any).map(note => {
const date = new Date(note.createdAt).getDate();
const month = new Date(note.createdAt).getMonth() + 1;
note._date = date;
note._datetext = this.$t('@.month-and-day').replace('{month}', month.toString()).replace('{day}', date.toString());
return note;
});
}
},
watch: {
queue(x) {
if (x.length > 0) {
this.$store.commit('indicate', true);
} else {
this.$store.commit('indicate', false);
}
}
},
mounted() {
window.addEventListener('scroll', this.onScroll, { passive: true });
},
beforeDestroy() {
window.removeEventListener('scroll', this.onScroll);
},
methods: {
isScrollTop() {
return window.scrollY <= 8;
},
onNoteUpdated(i, note) {
Vue.set((this as any).notes, i, note);
},
init(promiseGenerator: () => Promise<any[]>) {
this.requestInitPromise = promiseGenerator;
this.resolveInitPromise();
},
resolveInitPromise() {
this.queue = [];
this.notes = [];
this.fetching = true;
const promise = this.requestInitPromise();
promise.then(notes => {
this.notes = notes;
this.requestInitPromise = null;
this.fetching = false;
}, e => {
this.fetching = false;
});
},
prepend(note, silent = false) {
// 弾く
if (shouldMuteNote(this.$store.state.i, this.$store.state.settings, note)) return;
// タブが非表示またはスクロール位置が最上部ではないならタイトルで通知
if (document.hidden || !this.isScrollTop()) {
this.$store.commit('pushBehindNote', note);
}
if (this.isScrollTop()) {
// Prepend the note
this.notes.unshift(note);
// オーバーフローしたら古い投稿は捨てる
if (this.notes.length >= displayLimit) {
this.notes = this.notes.slice(0, displayLimit);
}
} else {
this.queue.push(note);
}
},
append(note) {
this.notes.push(note);
},
tail() {
return this.notes[this.notes.length - 1];
},
releaseQueue() {
this.queue.forEach(n => this.prepend(n, true));
this.queue = [];
},
async loadMore() {
if (this.more == null) return;
if (this.moreFetching) return;
this.moreFetching = true;
await this.more();
this.moreFetching = false;
},
onScroll() {
if (this.isScrollTop()) {
this.releaseQueue();
}
if (this.$store.state.settings.fetchOnScroll !== false) {
// 親要素が display none だったら弾く
// https://github.com/syuilo/misskey/issues/1569
// http://d.hatena.ne.jp/favril/20091105/1257403319
if (this.$el.offsetHeight == 0) return;
const current = window.scrollY + window.innerHeight;
if (current > document.body.offsetHeight - 8) this.loadMore();
}
}
}
});
</script>
<style lang="stylus" scoped>
.mk-notes
overflow hidden
background var(--face)
border-radius 8px
box-shadow 0 0 2px rgba(#000, 0.1)
@media (min-width 500px)
box-shadow 0 8px 32px rgba(#000, 0.1)
.transition
.mk-notes-enter
.mk-notes-leave-to
opacity 0
transform translateY(-30px)
> *
transition transform .3s ease, opacity .3s ease
> .date
display block
margin 0
line-height 32px
text-align center
font-size 0.9em
color var(--dateDividerFg)
background var(--dateDividerBg)
border-bottom solid 1px var(--faceDivider)
span
margin 0 16px
[data-icon]
margin-right 8px
> .placeholder
padding 16px
opacity 0.3
@media (min-width 500px)
padding 32px
> .empty
margin 0 auto
padding 32px
max-width 400px
text-align center
color #999
> [data-icon]
display block
margin-bottom 16px
font-size 3em
color #ccc
> footer
text-align center
border-top solid 1px var(--faceDivider)
&:empty
display none
> button
margin 0
padding 16px
width 100%
color #ccc
@media (min-width 500px)
padding 20px
&:disabled
opacity 0.7
</style>