lemmy/ui/src/components/post-listing.tsx

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import { Component, linkEvent } from 'inferno';
import { Link } from 'inferno-router';
import { WebSocketService, UserService } from '../services';
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import { Post, CreatePostLikeForm, PostForm as PostFormI, SavePostForm, CommunityUser, UserView } from '../interfaces';
import { MomentTime } from './moment-time';
import { PostForm } from './post-form';
import { mdToHtml, canMod, isMod, isImage } from '../utils';
interface PostListingState {
showEdit: boolean;
showRemoveDialog: boolean;
removeReason: string;
imageExpanded: boolean;
}
interface PostListingProps {
post: Post;
editable?: boolean;
showCommunity?: boolean;
showBody?: boolean;
viewOnly?: boolean;
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moderators?: Array<CommunityUser>;
admins?: Array<UserView>;
}
export class PostListing extends Component<PostListingProps, PostListingState> {
private emptyState: PostListingState = {
showEdit: false,
showRemoveDialog: false,
removeReason: null,
imageExpanded: false
}
constructor(props: any, context: any) {
super(props, context);
this.state = this.emptyState;
this.handlePostLike = this.handlePostLike.bind(this);
this.handlePostDisLike = this.handlePostDisLike.bind(this);
this.handleEditPost = this.handleEditPost.bind(this);
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this.handleEditCancel = this.handleEditCancel.bind(this);
}
render() {
return (
<div>
{!this.state.showEdit
? this.listing()
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: <PostForm post={this.props.post} onEdit={this.handleEditPost} onCancel={this.handleEditCancel}/>
}
</div>
)
}
listing() {
let post = this.props.post;
return (
<div class="listing">
<div className={`float-left small text-center ${this.props.viewOnly && 'no-click'}`}>
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<div className={`pointer ${post.my_vote == 1 ? 'text-info' : 'text-muted'}`} onClick={linkEvent(this, this.handlePostLike)}>
<svg class="icon upvote"><use xlinkHref="#icon-arrow-up"></use></svg>
</div>
<div>{post.score}</div>
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<div className={`pointer ${post.my_vote == -1 ? 'text-danger' : 'text-muted'}`} onClick={linkEvent(this, this.handlePostDisLike)}>
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<svg class="icon downvote"><use xlinkHref="#icon-arrow-down"></use></svg>
</div>
</div>
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{post.url && isImage(post.url) &&
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<span title="Expand here" class="pointer" onClick={linkEvent(this, this.handleImageExpandClick)}><img class="mx-2 float-left img-fluid thumbnail rounded" src={post.url} /></span>
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}
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<div className="ml-4">
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<div>
<h5 className="mb-0 d-inline">
{post.url ?
<a className="text-white" href={post.url} target="_blank" title={post.url}>{post.name}</a> :
<Link className="text-white" to={`/post/${post.id}`} title="Comments">{post.name}</Link>
}
</h5>
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{post.url &&
<small>
<a className="ml-2 text-muted font-italic" href={post.url} target="_blank" title={post.url}>{(new URL(post.url)).hostname}</a>
</small>
}
{post.removed &&
<small className="ml-2 text-muted font-italic">removed</small>
}
{post.locked &&
<small className="ml-2 text-muted font-italic">locked</small>
}
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{ post.url && isImage(post.url) &&
<>
{ !this.state.imageExpanded
? <span class="badge badge-light pointer ml-2 text-muted small" title="Expand here" onClick={linkEvent(this, this.handleImageExpandClick)}>+</span>
:
<span>
<span class="pointer ml-2 badge badge-light text-muted small" onClick={linkEvent(this, this.handleImageExpandClick)}>-</span>
<div>
<a href={post.url} target="_blank"><img class="img-fluid" src={post.url} /></a>
</div>
</span>
}
</>
}
</div>
</div>
<div className="details ml-4 mb-1">
<ul class="list-inline mb-0 text-muted small">
<li className="list-inline-item">
<span>by </span>
<Link className="text-info" to={`/u/${post.creator_name}`}>{post.creator_name}</Link>
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{this.isMod &&
<span className="mx-1 badge badge-secondary">mod</span>
}
{this.isAdmin &&
<span className="mx-1 badge badge-secondary">admin</span>
}
{this.props.showCommunity &&
<span>
<span> to </span>
<Link to={`/c/${post.community_name}`}>{post.community_name}</Link>
</span>
}
</li>
<li className="list-inline-item">
<span><MomentTime data={post} /></span>
</li>
<li className="list-inline-item">
<span>(
<span className="text-info">+{post.upvotes}</span>
<span> | </span>
<span className="text-danger">-{post.downvotes}</span>
<span>) </span>
</span>
</li>
<li className="list-inline-item">
<Link className="text-muted" to={`/post/${post.id}`}>{post.number_of_comments} Comments</Link>
</li>
</ul>
{UserService.Instance.user && this.props.editable &&
<ul class="list-inline mb-1 text-muted small font-weight-bold">
<li className="list-inline-item mr-2">
<span class="pointer" onClick={linkEvent(this, this.handleSavePostClick)}>{this.props.post.saved ? 'unsave' : 'save'}</span>
</li>
{this.myPost &&
<>
<li className="list-inline-item">
<span class="pointer" onClick={linkEvent(this, this.handleEditClick)}>edit</span>
</li>
<li className="list-inline-item mr-2">
<span class="pointer" onClick={linkEvent(this, this.handleDeleteClick)}>delete</span>
</li>
</>
}
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{this.canMod &&
<span>
<li className="list-inline-item">
{!this.props.post.removed ?
<span class="pointer" onClick={linkEvent(this, this.handleModRemoveShow)}>remove</span> :
<span class="pointer" onClick={linkEvent(this, this.handleModRemoveSubmit)}>restore</span>
}
</li>
<li className="list-inline-item">
<span class="pointer" onClick={linkEvent(this, this.handleModLock)}>{this.props.post.locked ? 'unlock' : 'lock'}</span>
</li>
</span>
}
</ul>
}
{this.state.showRemoveDialog &&
<form class="form-inline" onSubmit={linkEvent(this, this.handleModRemoveSubmit)}>
<input type="text" class="form-control mr-2" placeholder="Reason" value={this.state.removeReason} onInput={linkEvent(this, this.handleModRemoveReasonChange)} />
<button type="submit" class="btn btn-secondary">Remove Post</button>
</form>
}
{this.props.showBody && this.props.post.body && <div className="md-div" dangerouslySetInnerHTML={mdToHtml(post.body)} />}
</div>
</div>
)
}
private get myPost(): boolean {
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return UserService.Instance.user && this.props.post.creator_id == UserService.Instance.user.id;
}
get isMod(): boolean {
return this.props.moderators && isMod(this.props.moderators.map(m => m.user_id), this.props.post.creator_id);
}
get isAdmin(): boolean {
return this.props.admins && isMod(this.props.admins.map(a => a.id), this.props.post.creator_id);
}
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get canMod(): boolean {
if (this.props.editable) {
let adminsThenMods = this.props.admins.map(a => a.id)
.concat(this.props.moderators.map(m => m.user_id));
return canMod(UserService.Instance.user, adminsThenMods, this.props.post.creator_id);
} else return false;
}
handlePostLike(i: PostListing) {
let form: CreatePostLikeForm = {
post_id: i.props.post.id,
score: (i.props.post.my_vote == 1) ? 0 : 1
};
WebSocketService.Instance.likePost(form);
}
handlePostDisLike(i: PostListing) {
let form: CreatePostLikeForm = {
post_id: i.props.post.id,
score: (i.props.post.my_vote == -1) ? 0 : -1
};
WebSocketService.Instance.likePost(form);
}
handleEditClick(i: PostListing) {
i.state.showEdit = true;
i.setState(i.state);
}
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handleEditCancel() {
this.state.showEdit = false;
this.setState(this.state);
}
// The actual editing is done in the recieve for post
handleEditPost() {
this.state.showEdit = false;
this.setState(this.state);
}
handleDeleteClick(i: PostListing) {
let deleteForm: PostFormI = {
body: '',
community_id: i.props.post.community_id,
name: "deleted",
url: '',
edit_id: i.props.post.id,
creator_id: i.props.post.creator_id,
auth: null
};
WebSocketService.Instance.editPost(deleteForm);
}
handleSavePostClick(i: PostListing) {
let saved = (i.props.post.saved == undefined) ? true : !i.props.post.saved;
let form: SavePostForm = {
post_id: i.props.post.id,
save: saved
};
WebSocketService.Instance.savePost(form);
}
handleModRemoveShow(i: PostListing) {
i.state.showRemoveDialog = true;
i.setState(i.state);
}
handleModRemoveReasonChange(i: PostListing, event: any) {
i.state.removeReason = event.target.value;
i.setState(i.state);
}
handleModRemoveSubmit(i: PostListing) {
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event.preventDefault();
let form: PostFormI = {
name: i.props.post.name,
community_id: i.props.post.community_id,
edit_id: i.props.post.id,
creator_id: i.props.post.creator_id,
removed: !i.props.post.removed,
reason: i.state.removeReason,
auth: null,
};
WebSocketService.Instance.editPost(form);
i.state.showRemoveDialog = false;
i.setState(i.state);
}
handleModLock(i: PostListing) {
let form: PostFormI = {
name: i.props.post.name,
community_id: i.props.post.community_id,
edit_id: i.props.post.id,
creator_id: i.props.post.creator_id,
locked: !i.props.post.locked,
auth: null,
};
WebSocketService.Instance.editPost(form);
}
handleImageExpandClick(i: PostListing) {
i.state.imageExpanded = !i.state.imageExpanded;
i.setState(i.state);
}
}