ui/src/components/comment-form.tsx

   1 import { Component, linkEvent } from 'inferno';
   2 import { Prompt } from 'inferno-router';
   3 import {
   4   CommentNode as CommentNodeI,
   5   CommentForm as CommentFormI,
   6 } from '../interfaces';
   7 import {
   8   capitalizeFirstLetter,
   9   mdToHtml,
  10   randomStr,
  11   markdownHelpUrl,
  12   toast,
  13   setupTribute,
  14 } from '../utils';
  15 import { WebSocketService, UserService } from '../services';
  16 import autosize from 'autosize';
  17 import Tribute from 'tributejs/src/Tribute.js';
  18 import { i18n } from '../i18next';
  19
  20 interface CommentFormProps {
  21   postId?: number;
  22   node?: CommentNodeI;
  23   onReplyCancel?(): any;
  24   edit?: boolean;
  25   disabled?: boolean;
  26 }
  27
  28 interface CommentFormState {
  29   commentForm: CommentFormI;
  30   buttonTitle: string;
  31   previewMode: boolean;
  32   imageLoading: boolean;
  33 }
  34
  35 export class CommentForm extends Component<CommentFormProps, CommentFormState> {
  36   private id = `comment-form-${randomStr()}`;
  37   private tribute: Tribute;
  38   private emptyState: CommentFormState = {
  39     commentForm: {
  40       auth: null,
  41       content: null,
  42       post_id: this.props.node
  43         ? this.props.node.comment.post_id
  44         : this.props.postId,
  45       creator_id: UserService.Instance.user
  46         ? UserService.Instance.user.id
  47         : null,
  48     },
  49     buttonTitle: !this.props.node
  50       ? capitalizeFirstLetter(i18n.t('post'))
  51       : this.props.edit
  52       ? capitalizeFirstLetter(i18n.t('edit'))
  53       : capitalizeFirstLetter(i18n.t('reply')),
  54     previewMode: false,
  55     imageLoading: false,
  56   };
  57
  58   constructor(props: any, context: any) {
  59     super(props, context);
  60
  61     this.tribute = setupTribute();
  62     this.state = this.emptyState;
  63
  64     if (this.props.node) {
  65       if (this.props.edit) {
  66         this.state.commentForm.edit_id = this.props.node.comment.id;
  67         this.state.commentForm.parent_id = this.props.node.comment.parent_id;
  68         this.state.commentForm.content = this.props.node.comment.content;
  69         this.state.commentForm.creator_id = this.props.node.comment.creator_id;
  70       } else {
  71         // A reply gets a new parent id
  72         this.state.commentForm.parent_id = this.props.node.comment.id;
  73       }
  74     }
  75   }
  76
  77   componentDidMount() {
  78     var textarea: any = document.getElementById(this.id);
  79     autosize(textarea);
  80     this.tribute.attach(textarea);
  81     textarea.addEventListener('tribute-replaced', () => {
  82       this.state.commentForm.content = textarea.value;
  83       this.setState(this.state);
  84       autosize.update(textarea);
  85     });
  86   }
  87
  88   render() {
  89     return (
  90       <div class="mb-3">
  91         <Prompt
  92           when={this.state.commentForm.content}
  93           message={i18n.t('block_leaving')}
  94         />
  95         <form onSubmit={linkEvent(this, this.handleCommentSubmit)}>
  96           <div class="form-group row">
  97             <div className={`col-sm-12`}>
  98               <textarea
  99                 id={this.id}
 100                 className={`form-control ${this.state.previewMode && 'd-none'}`}
 101                 value={this.state.commentForm.content}
 102                 onInput={linkEvent(this, this.handleCommentContentChange)}
 103                 onPaste={linkEvent(this, this.handleImageUploadPaste)}
 104                 required
 105                 disabled={this.props.disabled}
 106                 rows={2}
 107                 maxLength={10000}
 108               />
 109               {this.state.previewMode && (
 110                 <div
 111                   className="md-div"
 112                   dangerouslySetInnerHTML={mdToHtml(
 113                     this.state.commentForm.content
 114                   )}
 115                 />
 116               )}
 117             </div>
 118           </div>
 119           <div class="row">
 120             <div class="col-sm-12">
 121               <button
 122                 type="submit"
 123                 class="btn btn-sm btn-secondary mr-2"
 124                 disabled={this.props.disabled}
 125               >
 126                 {this.state.buttonTitle}
 127               </button>
 128               {this.state.commentForm.content && (
 129                 <button
 130                   className={`btn btn-sm mr-2 btn-secondary ${this.state
 131                     .previewMode && 'active'}`}
 132                   onClick={linkEvent(this, this.handlePreviewToggle)}
 133                 >
 134                   {i18n.t('preview')}
 135                 </button>
 136               )}
 137               {this.props.node && (
 138                 <button
 139                   type="button"
 140                   class="btn btn-sm btn-secondary mr-2"
 141                   onClick={linkEvent(this, this.handleReplyCancel)}
 142                 >
 143                   {i18n.t('cancel')}
 144                 </button>
 145               )}
 146               <a
 147                 href={markdownHelpUrl}
 148                 target="_blank"
 149                 class="d-inline-block float-right text-muted font-weight-bold"
 150                 title={i18n.t('formatting_help')}
 151               >
 152                 <svg class="icon icon-inline">
 153                   <use xlinkHref="#icon-help-circle"></use>
 154                 </svg>
 155               </a>
 156               <form class="d-inline-block mr-3 float-right text-muted font-weight-bold">
 157                 <label
 158                   htmlFor={`file-upload-${this.id}`}
 159                   className={`${UserService.Instance.user && 'pointer'}`}
 160                   data-tippy-content={i18n.t('upload_image')}
 161                 >
 162                   <svg class="icon icon-inline">
 163                     <use xlinkHref="#icon-image"></use>
 164                   </svg>
 165                 </label>
 166                 <input
 167                   id={`file-upload-${this.id}`}
 168                   type="file"
 169                   accept="image/*,video/*"
 170                   name="file"
 171                   class="d-none"
 172                   disabled={!UserService.Instance.user}
 173                   onChange={linkEvent(this, this.handleImageUpload)}
 174                 />
 175               </form>
 176               {this.state.imageLoading && (
 177                 <svg class="icon icon-spinner spin">
 178                   <use xlinkHref="#icon-spinner"></use>
 179                 </svg>
 180               )}
 181             </div>
 182           </div>
 183         </form>
 184       </div>
 185     );
 186   }
 187
 188   handleCommentSubmit(i: CommentForm, event: any) {
 189     event.preventDefault();
 190     if (i.props.edit) {
 191       WebSocketService.Instance.editComment(i.state.commentForm);
 192     } else {
 193       WebSocketService.Instance.createComment(i.state.commentForm);
 194     }
 195
 196     i.state.previewMode = false;
 197     i.state.commentForm.content = undefined;
 198     event.target.reset();
 199     i.setState(i.state);
 200     if (i.props.node) {
 201       i.props.onReplyCancel();
 202     }
 203
 204     autosize.update(document.querySelector('textarea'));
 205   }
 206
 207   handleCommentContentChange(i: CommentForm, event: any) {
 208     i.state.commentForm.content = event.target.value;
 209     i.setState(i.state);
 210   }
 211
 212   handlePreviewToggle(i: CommentForm, event: any) {
 213     event.preventDefault();
 214     i.state.previewMode = !i.state.previewMode;
 215     i.setState(i.state);
 216   }
 217
 218   handleReplyCancel(i: CommentForm) {
 219     i.props.onReplyCancel();
 220   }
 221
 222   handleImageUploadPaste(i: CommentForm, event: any) {
 223     let image = event.clipboardData.files[0];
 224     if (image) {
 225       i.handleImageUpload(i, image);
 226     }
 227   }
 228
 229   handleImageUpload(i: CommentForm, event: any) {
 230     let file: any;
 231     if (event.target) {
 232       event.preventDefault();
 233       file = event.target.files[0];
 234     } else {
 235       file = event;
 236     }
 237
 238     const imageUploadUrl = `/pictshare/api/upload.php`;
 239     const formData = new FormData();
 240     formData.append('file', file);
 241
 242     i.state.imageLoading = true;
 243     i.setState(i.state);
 244
 245     fetch(imageUploadUrl, {
 246       method: 'POST',
 247       body: formData,
 248     })
 249       .then(res => res.json())
 250       .then(res => {
 251         let url = `${window.location.origin}/pictshare/${res.url}`;
 252         let imageMarkdown =
 253           res.filetype == 'mp4' ? `[vid](${url}/raw)` : `![](${url})`;
 254         let content = i.state.commentForm.content;
 255         content = content ? `${content}\n${imageMarkdown}` : imageMarkdown;
 256         i.state.commentForm.content = content;
 257         i.state.imageLoading = false;
 258         i.setState(i.state);
 259         var textarea: any = document.getElementById(i.id);
 260         autosize.update(textarea);
 261       })
 262       .catch(error => {
 263         i.state.imageLoading = false;
 264         i.setState(i.state);
 265         toast(error, 'danger');
 266       });
 267   }
 268 }