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<template>
<div class="channel">
<p v-if="fetching">読み込み中<mk-ellipsis/></p>
<div v-if="!fetching" ref="posts" class="posts">
<p v-if="posts.length == 0">まだ投稿がありません</p>
<x-post class="post" v-for="post in posts.slice().reverse()" :post="post" :key="post.id" @reply="reply"/>
</div>
<x-form class="form" ref="form"/>
</div>
</template>
<script lang="ts">
import Vue from 'vue';
import ChannelStream from '../../../common/scripts/streaming/channel';
import XForm from './channel.channel.form.vue';
import XPost from './channel.channel.post.vue';
export default Vue.extend({
components: {
XForm,
XPost
},
props: ['channel'],
data() {
return {
fetching: true,
posts: [],
connection: null
};
},
watch: {
channel() {
this.zap();
}
},
mounted() {
this.zap();
},
beforeDestroy() {
this.disconnect();
},
methods: {
zap() {
this.fetching = true;
(this as any).api('channels/posts', {
channelId: this.channel.id
}).then(posts => {
this.posts = posts;
this.fetching = false;
this.$nextTick(() => {
this.scrollToBottom();
});
this.disconnect();
this.connection = new ChannelStream((this as any).os, this.channel.id);
this.connection.on('post', this.onPost);
});
},
disconnect() {
if (this.connection) {
this.connection.off('post', this.onPost);
this.connection.close();
}
},
onPost(post) {
this.posts.unshift(post);
this.scrollToBottom();
},
scrollToBottom() {
(this.$refs.posts as any).scrollTop = (this.$refs.posts as any).scrollHeight;
},
reply(post) {
(this.$refs.form as any).text = `>>${ post.index } `;
}
}
});
</script>
<style lang="stylus" scoped>
.channel
> p
margin 0
padding 16px
text-align center
color #aaa
> .posts
height calc(100% - 38px)
overflow auto
font-size 0.9em
> .post
border-bottom solid 1px #eee
&:last-child
border-bottom none
> .form
position absolute
left 0
bottom 0
</style>
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