update PostsFeed to PostsList

This commit is contained in:
srgooglo 2022-11-14 01:30:55 +00:00
parent bb46cf1b33
commit 6f2e5a5fee
3 changed files with 1 additions and 309 deletions

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@ -1,273 +0,0 @@
import React from "react"
import * as antd from "antd"
import { Icons } from "components/Icons"
import { PostCard, LoadMore } from "components"
import "./index.less"
const LoadingComponent = () => {
// FIXME: Im not sure why but, using <antd.Skeleton> will cause a memory leak of DOM Nodes when using IntersectionObserver
//return <antd.Skeleton active />
return <p><Icons.LoadingOutlined spin className="loadingIcon" /> Loading more ...</p>
}
const NoResultComponent = () => {
return <antd.Result
status="info"
title="This is the end"
subTitle="We dont have more posts for you"
/>
}
// FIXME: Scroll behavior should scroll to next post or the previous one depending on the direction of the scroll
export default class PostsFeed extends React.Component {
state = {
initialLoading: true,
fetchingData: true,
hasMorePosts: true,
renderList: [],
currentIndex: 0,
}
api = window.app.api.withEndpoints()
listRef = React.createRef()
wsEvents = {
"post.new": async (data) => {
this.insert(data)
},
"post.delete": async (data) => {
this.remove(data)
}
}
componentDidMount = async () => {
// load ws events
Object.keys(this.wsEvents).forEach((event) => {
window.app.api.namespaces["main"].listenEvent(event, this.wsEvents[event])
})
// TODO: register keybindings to handle directions key scrolling to posts (use app.shortcuts)
window.app.shortcuts.register({
id: "postsFeed.scrollUp",
key: "ArrowUp",
preventDefault: true,
}, (event) => {
this.scrollUp()
})
window.app.shortcuts.register({
id: "postsFeed.scrollDown",
key: "ArrowDown",
preventDefault: true,
}, (event) => {
this.scrollDown()
})
await this.loadPosts()
await this.setState({ initialLoading: false })
}
componentWillUnmount = async () => {
// unload ws events
Object.keys(this.wsEvents).forEach((event) => {
window.app.api.namespaces["main"].unlistenEvent(event, this.wsEvents[event])
})
window.app.shortcuts.remove("postsFeed.scrollUp")
window.app.shortcuts.remove("postsFeed.scrollDown")
}
// avoid to re-render the whole list when props change
shouldComponentUpdate(nextProps, nextState) {
return this.state !== nextState
}
scrollUp = () => {
this.scrollToIndex(this.state.currentIndex - 1)
}
scrollDown = () => {
this.scrollToIndex(this.state.currentIndex + 1)
}
scrollToIndex = (index) => {
const post = this.listRef.current.children[index]
if (post) {
post.scrollIntoView({ behavior: "smooth", block: "center" })
this.setState({ currentIndex: index })
}
}
handleScroll = (event) => {
event.preventDefault()
// check if is scrolling up or down
const isScrollingUp = event.deltaY < 0
// get current index
const currentIndex = this.state.currentIndex
// get next index
const nextIndex = isScrollingUp ? currentIndex - 1 : currentIndex + 1
// scroll to next index
this.scrollToIndex(nextIndex)
}
loadPosts = async ({
trim,
replace = false
} = {}) => {
// toogle fetching flag
await this.setState({
fetchingData: true,
})
// get posts from api
const result = await this.api.get.feed(undefined, {
trim: trim ?? this.state.renderList.length,
limit: this.props.feedLength ?? window.app.settings.get("feed_max_fetch"),
user_id: this.props.fromUserId,
savedOnly: this.props.savedOnly,
})
console.log("Loaded Posts => \n", result)
if (result) {
// if result is empty, its mean there is no more posts, so set hasMorePosts to false
if (result.length === 0) {
await this.setState({
hasMorePosts: false,
})
return false
}
if (replace) {
// replace all posts render list
await this.setState({
renderList: result.map((item) => this.getPostRender(item, item.key))
})
} else {
// else append posts to render list
await this.setState({
renderList: [
...this.state.renderList,
...result.map((item) => this.getPostRender(item, item.key))
]
})
}
}
// toogle fetching flag
await this.setState({
fetchingData: false,
})
}
onLikePost = async (data) => {
let result = await this.api.post.toogleLike({ post_id: data._id }).catch(() => {
antd.message.error("Failed to like post")
return false
})
return result
}
onSavePost = async (data) => {
let result = await this.api.post.postToogleSave({ post_id: data._id }).catch(() => {
antd.message.error("Failed to save post")
return false
})
return result
}
onDeletePost = async (data) => {
antd.Modal.confirm({
title: "Are you sure you want to delete this post?",
content: "This action is irreversible",
okText: "Yes",
okType: "danger",
cancelText: "No",
onOk: async () => {
await this.api.delete.post({ post_id: data._id }).catch(() => {
antd.message.error("Failed to delete post")
})
},
})
}
onDoubleClickPost = (data) => {
// open post
app.setLocation(`/post/${data._id}`)
}
insert = async (data) => {
await this.setState({
renderList: [this.getPostRender(data), ...this.state.renderList],
})
}
remove = async (post_id) => {
const updatedList = this.state.renderList
const postIndex = updatedList.findIndex((item) => item.props.data._id === post_id)
updatedList.splice(postIndex, 1)
await this.setState({
renderList: updatedList,
})
}
getPostRender = (item, index = this.state.renderList.length) => {
return <PostCard
key={index}
data={item}
events={{
onClickLike: this.onLikePost,
onClickDelete: this.onDeletePost,
onClickSave: this.onSavePost,
onDoubleClick: this.onDoubleClickPost,
}}
/>
}
render() {
if (this.state.initialLoading) {
return <antd.Skeleton active />
}
if (this.state.renderList.length === 0) {
return <div>
<antd.Empty />
<h1>Whoa, nothing on here...</h1>
</div>
}
return <div
id="postsFeed"
className="postsFeed"
onScroll={this.handleScroll}
>
<LoadMore
onBottom={() => {
this.loadPosts()
}}
loadingComponent={LoadingComponent}
noResultComponent={NoResultComponent}
fetching={this.state.fetchingData}
hasMore={this.state.hasMorePosts}
className="posts"
ref={this.listRef}
>
{this.state.renderList}
</LoadMore>
</div>
}
}

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@ -1,35 +0,0 @@
.postsFeed {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
width: 100%;
.infinite-scroll {
display: flex;
flex-direction: column;
align-items: center;
//justify-content: center;
width: 100%;
}
.posts {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
width: 100%;
overflow: overlay;
// fix
padding: 5px 0;
>div {
margin-bottom: 20px;
}
}
}

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@ -42,7 +42,7 @@ export { default as Creator } from "./Creator"
export { default as FollowButton } from "./FollowButton" export { default as FollowButton } from "./FollowButton"
// POSTS // POSTS
export { default as PostsFeed } from "./PostsFeed" export { default as PostsList } from "./PostsList"
export { default as PostCard } from "./PostCard" export { default as PostCard } from "./PostCard"
export { default as PostCreator } from "./PostCreator" export { default as PostCreator } from "./PostCreator"