diff options
Diffstat (limited to 'client/src/app/shared/shared-forms/markdown-textarea.component.ts')
-rw-r--r-- | client/src/app/shared/shared-forms/markdown-textarea.component.ts | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/client/src/app/shared/shared-forms/markdown-textarea.component.ts b/client/src/app/shared/shared-forms/markdown-textarea.component.ts new file mode 100644 index 000000000..8dad5314c --- /dev/null +++ b/client/src/app/shared/shared-forms/markdown-textarea.component.ts | |||
@@ -0,0 +1,110 @@ | |||
1 | import truncate from 'lodash-es/truncate' | ||
2 | import { Subject } from 'rxjs' | ||
3 | import { debounceTime, distinctUntilChanged } from 'rxjs/operators' | ||
4 | import { Component, ElementRef, forwardRef, Input, OnInit, ViewChild } from '@angular/core' | ||
5 | import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms' | ||
6 | import { MarkdownService } from '@app/core' | ||
7 | |||
8 | @Component({ | ||
9 | selector: 'my-markdown-textarea', | ||
10 | templateUrl: './markdown-textarea.component.html', | ||
11 | styleUrls: [ './markdown-textarea.component.scss' ], | ||
12 | providers: [ | ||
13 | { | ||
14 | provide: NG_VALUE_ACCESSOR, | ||
15 | useExisting: forwardRef(() => MarkdownTextareaComponent), | ||
16 | multi: true | ||
17 | } | ||
18 | ] | ||
19 | }) | ||
20 | |||
21 | export class MarkdownTextareaComponent implements ControlValueAccessor, OnInit { | ||
22 | @Input() content = '' | ||
23 | @Input() classes: string[] | { [klass: string]: any[] | any } = [] | ||
24 | @Input() textareaMaxWidth = '100%' | ||
25 | @Input() textareaHeight = '150px' | ||
26 | @Input() truncate: number | ||
27 | @Input() markdownType: 'text' | 'enhanced' = 'text' | ||
28 | @Input() markdownVideo = false | ||
29 | @Input() name = 'description' | ||
30 | |||
31 | @ViewChild('textarea') textareaElement: ElementRef | ||
32 | |||
33 | truncatedPreviewHTML = '' | ||
34 | previewHTML = '' | ||
35 | isMaximized = false | ||
36 | |||
37 | private contentChanged = new Subject<string>() | ||
38 | |||
39 | constructor (private markdownService: MarkdownService) {} | ||
40 | |||
41 | ngOnInit () { | ||
42 | this.contentChanged | ||
43 | .pipe( | ||
44 | debounceTime(150), | ||
45 | distinctUntilChanged() | ||
46 | ) | ||
47 | .subscribe(() => this.updatePreviews()) | ||
48 | |||
49 | this.contentChanged.next(this.content) | ||
50 | } | ||
51 | |||
52 | propagateChange = (_: any) => { /* empty */ } | ||
53 | |||
54 | writeValue (description: string) { | ||
55 | this.content = description | ||
56 | |||
57 | this.contentChanged.next(this.content) | ||
58 | } | ||
59 | |||
60 | registerOnChange (fn: (_: any) => void) { | ||
61 | this.propagateChange = fn | ||
62 | } | ||
63 | |||
64 | registerOnTouched () { | ||
65 | // Unused | ||
66 | } | ||
67 | |||
68 | onModelChange () { | ||
69 | this.propagateChange(this.content) | ||
70 | |||
71 | this.contentChanged.next(this.content) | ||
72 | } | ||
73 | |||
74 | onMaximizeClick () { | ||
75 | this.isMaximized = !this.isMaximized | ||
76 | |||
77 | // Make sure textarea have the focus | ||
78 | this.textareaElement.nativeElement.focus() | ||
79 | |||
80 | // Make sure the window has no scrollbars | ||
81 | if (!this.isMaximized) { | ||
82 | this.unlockBodyScroll() | ||
83 | } else { | ||
84 | this.lockBodyScroll() | ||
85 | } | ||
86 | } | ||
87 | |||
88 | private lockBodyScroll () { | ||
89 | document.getElementById('content').classList.add('lock-scroll') | ||
90 | } | ||
91 | |||
92 | private unlockBodyScroll () { | ||
93 | document.getElementById('content').classList.remove('lock-scroll') | ||
94 | } | ||
95 | |||
96 | private async updatePreviews () { | ||
97 | if (this.content === null || this.content === undefined) return | ||
98 | |||
99 | this.truncatedPreviewHTML = await this.markdownRender(truncate(this.content, { length: this.truncate })) | ||
100 | this.previewHTML = await this.markdownRender(this.content) | ||
101 | } | ||
102 | |||
103 | private async markdownRender (text: string) { | ||
104 | const html = this.markdownType === 'text' ? | ||
105 | await this.markdownService.textMarkdownToHTML(text) : | ||
106 | await this.markdownService.enhancedMarkdownToHTML(text) | ||
107 | |||
108 | return this.markdownVideo ? this.markdownService.processVideoTimestamps(html) : html | ||
109 | } | ||
110 | } | ||