如何在 angular 中使用表情符号选择器制作输入字段或文本区域?

How to make input field or textarea with emoji-picker in angular?

新-status.component.ts

<mat-form-field>
  <textarea matInput placeholder="Status Content" style="height: 200px;"></textarea>
  <emoji-mart title="Pick your emoji…" emoji="point_up"></emoji-mart>
</mat-form-field>

我按照这个link解决方案(https://github.com/TypeCtrl/ngx-emoji-mart),现在我想把表情符号选择器放在输入字段或文本区域中。

让我们从

开始
npm install @ctrl/ngx-emoji-mart

那么,

import { PickerModule } from '@ctrl/ngx-emoji-mart'

在angular.json中添加样式表:

"styles": [
          "src/styles.css",
          "../node_modules/@ctrl/ngx-emoji-mart/picker.css"
        ],

在 app.module.ts:

的导入数组中添加模块
@NgModule({
...,
imports:      [ ..., PickerModule, ... ],
...
})

最后添加以进行测试以查看 app.component.html 中是否所有工作:

<emoji-mart title="Pick your emoji…" emoji="point_up"></emoji-mart>  

就是这样:-)

https://stackblitz.com/edit/angular-rxanqx?file=src%2Fapp%2Fapp.component.html

编辑

有一种原始方法需要风格化。

https://stackblitz.com/edit/angular-rxanqx

你有一个 textarea 按钮,可以在你的文本中添加表情符号。

让我知道这是否是您开始的好方法:-)

npm install @ctrl/ngx-emoji-mart

然后在你的 module.ts

import { PickerModule } from '@ctrl/ngx-emoji-mart'

在您的 styles.scss

中添加其样式
@import '~@ctrl/ngx-emoji-mart/picker';

在你的 component.html

<form [formGroup]="emojiForm">
   <emoji-mart (emojiClick)="addEmoji($event)" emoji="point_up"></emoji-mart>
   <textarea type="text" formControlName="inputField"></textarea>
</form>

在你里面component.ts

addEmoji($event){
  let data = this.emojiForm.get('inputField');
  data.patchValue(data.value + $event.emoji.native)
}

我知道它晚了,但也许其他人可以使用它。

我改进了那些可用的解决方案。 表情符号应该插入胡萝卜位置,我们应该能够在消息框上撤消,重做 这是解决方案。

HTML

 <textarea #input [formControl]="message" (keydown.enter)="send()"> </textarea>
    
    <emoji-mart
       title="Pick your emoji…"
       (emojiSelect)="addEmoji($event)"
       [hideObsolete]="true"
       [isNative]="true">
    </emoji-mart>

TS

    addEmoji(selected: Emoji) {
            const emoji: string = (selected.emoji as any).native;
            const input = this.input.nativeElement;
            input.focus();
        
            if (document.execCommand){ // document.execCommand is absolute but it //add support for undo redo and insert emoji at carrot position
//any one has better solution ?
    
              var event = new Event('input');
              document.execCommand('insertText', false, emoji);
              return; 
            }
               // insert emoji on carrot position
            const [start, end] = [input.selectionStart, input.selectionEnd]; 
            input.setRangeText(emoji, start, end, 'end');
          }

document.execCommand() is now deprecated.

对于您的问题,我有一个替代解决方案,它考虑了当前插入符号的位置。唯一的缺点是它会擦除 undo/redo 历史记录。

表情符号html:

<emoji-mart *ngIf="showEmojiWindow"
            [showPreview]="false"
            (emojiClick)="addEmoji($event)"
            [isNative]="true"
            [showSingleCategory]="true"
            [emojiTooltip]="true"></emoji-mart>

表格html:

<form [formGroup]="sendMessageForm" (ngSubmit)="submit(sendMessageForm)">
    <input #messageInput type="text" name="message" formControlName="message" class="form-control">
</form>

打字稿:

@ViewChild('messageInput')
messageInput: ElementRef;
sendMessageForm: FormGroup;
private messageFormControl: FormControl;

ngOnInit(): void {
    this.buildSendMessageForm();
}

addEmoji(event: EmojiEvent): void {
    this.messageInput.nativeElement.focus();
    const selectionStart = this.messageInput.nativeElement.selectionStart;
    const currentValue = this.messageInput.nativeElement.value;
    const newValue = currentValue.substring(0, selectionStart) + event.emoji.native + currentValue.substring(selectionStart);
    this.messageFormControl.setValue(newValue);
    // the following 2 lines set the caret position behind the emoji
    this.messageInput.nativeElement.selectionStart = selectionStart + event.emoji.native.length;
    this.messageInput.nativeElement.selectionEnd = selectionStart + event.emoji.native.length;
    this.showEmojiWindow = false;
}

private buildSendMessageForm(): void {
    this.messageFormControl = new FormControl('');
    this.sendMessageForm = new FormGroup({
        message: this.messageFormControl
    });
}