polaris-doc-viewer
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0.5.21 • Public • Published

polaris-doc-viewer



当前可渲染文件类型

Extension MIME Type Available
bmp image/bmp
doc application/msword
docx application/vnd.openxmlformats-officedocument.wordprocessingml.document
htm text/htm
html text/html
jpg image/jpg
jpeg image/jpeg
pdf application/pdf
png image/png
ppt application/vnd.ms-powerpoint
pptx applicatiapplication/vnd.openxmlformats-officedocument.presentationml.presentation
tiff image/tiff
txt text/plain
xls application/vnd.ms-excel
xlsx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
video mp3 、mp4、audio/x-m4a、 flac、 wma、 aiff、 ape、 dsd

|



安装

Core

 npm i polaris-doc-viewer
 # or
 yarn add polaris-doc-viewer
  # or
 pnpm add polaris-doc-viewer

Usage

Warning - 默认情况下,组件高度将根据当前加载的文件展开和收缩。宽度将扩展以填充parent



Basic

DocViewer至少需要一个文档对象数组才能起作用。 每个文档对象必须有一个指向文件的uri,可以是返回文件的url,也可以是返回本地文件的url

import DocViewer from "polaris-doc-viewer";

function App() {
  const docs = [
    { uri: "https://url-to-my-pdf.pdf", suffix: 'pdf' },
    { uri: require("./example-files/pdf.pdf"), suffix: 'pdf'  }, // Local File
  ];

  return <DocViewer documents={docs} />;
}

渲染器

DocViewerRenderers 插入所有渲染器的数组

import DocViewer, { DocViewerRenderers } from "polaris-doc-viewer";

<DocViewer
  pluginRenderers={DocViewerRenderers}
  {/* ... */}
/>;

或者插入单个渲染器

import DocViewer, { PDFRenderer, PNGRenderer } from "polaris-doc-viewer";

<DocViewer
  pluginRenderers={[PDFRenderer, PNGRenderer]}
  {/* ... */}
/>;


自定义渲染器

要创建一个自定义渲染器,它将只存在于您的项目中。

import React from "react";
import DocViewer from "polaris-doc-viewer";

const MyCustomPNGRenderer: DocRenderer = ({
  mainState: { currentDocument },
}) => {
  if (!currentDocument) return null;

  return (
    <div id="my-png-renderer">
      <img id="png-img" src={currentDocument.fileData as string} />
    </div>
  );
};

MyCustomPNGRenderer.fileTypes = ["png", "image/png"];

并将渲染器放入 pluginRenderers 里面 Array.

import DocViewer, { DocViewerRenderers } from "polaris-doc-viewer";

<DocViewer
  pluginRenderers={[MyCustomPNGRenderer]}
  documents={
    [
      // ...
    ]
  }
/>;


Custom File Loader

如果您需要阻止 polaris-doc-viewer 实际加载文件。 你可以用一个回调来装饰你的自定义渲染器。你自己在iFrame中加载文件。

MyCustomPNGRenderer.fileLoader = ({
  documentURI,
  signal,
  fileLoaderComplete,
}) => {
  myCustomFileLoaderCode().then(() => {
    // Whenever you have finished you must call fileLoaderComplete() to remove the loading animation
    fileLoaderComplete();
  });
};


主题

您可以为主题对象提供一个或所有可用属性。

<DocViewer
  documents={docs}
  theme={{
    primary: "#5296d8",
    secondary: "#ffffff",
    tertiary: "#5296d899",
    text_primary: "#ffffff",
    text_secondary: "#5296d8",
    text_tertiary: "#00000099",
    disableThemeScrollbar: false,
  }}
/>

- CSS Class Default Override

Each component / div already has a DOM id that can be used to style any part of the document viewer.

#react-doc-viewer #header-bar {
  background-color: #faf;
}

- 内联样式

<DocViewer documents={docs} style={{width: 500, height: 500}} />

- StyledComponent

import styled from "styled-components";
//...
<MyDocViewer documents={docs} />;
//...
const MyDocViewer = styled(DocViewer)`
  border-radius: 10px;
`;

Config

您可以提供一个配置对象,它根据需要配置组件的各个部分

<DocViewer documents={docs} config={{
 header: {
  disableHeader: false,
  disableFileName: false,
  retainURLParams: false
 }
}} />


Contributing

创建渲染插件

Step 1 -在里面创建一个新文件夹 src/plugins.

e.g. src/plugins/jpg

在这个文件夹中,创建一个Renderer React Typescript文件

e.g. index.tsx

Step 2 - 在JPGRenderer中,导出类型为 DocRenderer

import React from "react";
import { DocRenderer } from "../../types";

// Be sure that Renderer correctly uses type DocRenderer
const JPGRenderer: DocRenderer = ({ mainState: { currentDocument } }) => {
  if (!currentDocument) return null;

  return (
    <div id="jpg-renderer">
      <img id="jpg-img" src={currentDocument.fileData as string} />
    </div>
  );
};

export default JPGRenderer;

// List the MIME types that this renderer will respond to
JPGRenderer.fileTypes = ["jpg", "jpeg", "image/jpg", "image/jpeg"];

//如果同一个MIME类型有多个渲染器,使用weight。越高越好。
//包含的渲染器的权重为0
JPGRenderer.weight = 1;



Overriding Header Component

你可以给config.header传递一个回调函数。overricomponent '返回一个React元素。函数的参数将被填充并可用,这个函数也将在mainState更新时被重新调用。 参数包括来自主组件的状态对象,以及' previousDocument '和' nextDocument '的文档导航函数。

Example:

const myHeader: IHeaderOverride = (state, previousDocument, nextDocument) => {
    if (!state.currentDocument || state.config?.header?.disableFileName) {
      return null;
    }

    return (
      <>
        <div>{state.currentDocument.uri || ""}</div>
        <div>
          <button
            onClick={previousDocument}
            disabled={state.currentFileNo === 0}
          >
            Previous Document
          </button>
          <button
            onClick={nextDocument}
            disabled={state.currentFileNo >= state.documents.length - 1}
          >
            Next Document
          </button>
        </div>
      </>
    );
  };

<DocViewer
  pluginRenderers={DocViewerRenderers}
  documents={
    {
      /**/
    }
  }
  config={{
    header: {
      overrideComponent: myHeader;
      },
    },
  }
/>

API


DocViewer props

name type
documents IDocument[]
className? string
style? React.CSSProperties
config? IConfig
theme? ITheme
pluginRenderers? DocRenderer[]

IDocument

name type
uri string
fileType? string
fileData? `string

IConfig

name type
header? IHeaderConfig

IHeaderConfig

name type
disableHeader? boolean
disableFileName? boolean
retainURLParams? boolean
overrideComponent? IHeaderOverride

IHeaderOverride () => ReactElement<any, any> | null

name type
state IMainState
previousDocument () => void
nextDocument () => void
returns `ReactElement<any, any>

ITheme

name type
primary? string
secondary? string
tertiary? string
text_primary? string
text_secondary? string
text_tertiary? string
disableThemeScrollbar? boolean

DocRenderer extends React.FC<DocRendererProps>

name type
fileTypes string[]
weight number
fileLoader? FileLoaderFunction `

FileLoaderFunction

(props: FileLoaderFuncProps) => void


FileLoaderFuncProps

name type
documentURI string
signal AbortSignal
fileLoaderComplete FileLoaderComplete

FileLoaderComplete

name type
fileReader FileReader

DocRendererProps

name type
mainState IMainState

IMainState

name type
currentFileNo number
documents IDocument[]
documentLoading? boolean
currentDocument? IDocument
rendererRect? DOMRect
config? IConfig

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npm i polaris-doc-viewer

Weekly Downloads

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Version

0.5.21

License

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