扩展Quill以支持软换行

Question

我正在尝试用一个自定义的Blot来扩展羽毛笔，允许在<p>标记中使用换行符。根据advice given by the library author，我最终得到了如下所示的代码：

import * as Quill from 'quill';

const Delta = Quill.import('delta');
const Embed = Quill.import('blots/embed');

export class SoftLineBreakBlot extends Embed {
    static blotName = 'softbreak';
    static tagName = 'br';  
    static className = 'softbreak';
}

export function shiftEnterHandler(this: any, range) {    
    const currentLeaf = this.quill.getLeaf(range.index)[0];
    const nextLeaf = this.quill.getLeaf(range.index + 1)[0];    
    this.quill.insertEmbed(range.index, "softbreak", true, Quill.sources.USER);    
    // Insert a second break if:
    // At the end of the editor, OR next leaf has a different parent (<p>)
    if (nextLeaf === null || currentLeaf.parent !== nextLeaf.parent) {
      this.quill.insertEmbed(range.index, "softbreak", true, Quill.sources.USER);
    }
    // Now that we've inserted a line break, move the cursor forward
    this.quill.setSelection(range.index + 1, Quill.sources.SILENT);    
}

export function brMatcher(node, delta) {
    let newDelta = new Delta();
    newDelta.insert({softbreak: true});
    return newDelta;
}

我在一个Angular 10项目中使用了ngx-quill包装器。我的Quill模块定义如下：

QuillModule.forRoot({
      format: 'json',
      modules: {
        keyboard: {
          bindings: {
            "shift enter": {
              key: 13,
              shiftKey: true,
              handler: shiftEnterHandler
            }
          }
        },
        clipboard: {
          matchers: [            
             [ "BR", brMatcher ]
          ],          
        }
      },
    }),

但是，每当我按下Shift+Enter键时，光标就会向前移动，但insertEmbed()调用似乎没有任何效果。我做错了什么？

Answer 1

看起来你只是忘了给Quill.register(SoftLineBreakBlot)打电话

所以：

...
export class SoftLineBreakBlot extends Embed {
    static blotName = 'softbreak';
    static tagName = 'br';  
    static className = 'softbreak';
}
...

变成：

...
export class SoftLineBreakBlot extends Embed {
    static blotName = 'softbreak';
    static tagName = 'br';  
    static className = 'softbreak';
}
Quill.register(SoftLineBreakBlot);
...