[file view] rewrote it with react, for 'preview unsupported' files (#3172)

frontend/config/webpack.config.dev.js

@@ -154,6 +154,11 @@ module.exports = {
       require.resolve('react-dev-utils/webpackHotDevClient'),
       paths.appSrc + "/view-file-audio.js",
     ],
+    viewFileUnknown: [
+      require.resolve('./polyfills'),
+      require.resolve('react-dev-utils/webpackHotDevClient'),
+      paths.appSrc + "/view-file-unknown.js",
+    ],
     orgAdmin: [
       require.resolve('./polyfills'),
       require.resolve('react-dev-utils/webpackHotDevClient'),

frontend/config/webpack.config.prod.js

@@ -79,6 +79,7 @@ module.exports = {
     viewFileSpreadsheet: [require.resolve('./polyfills'), paths.appSrc + "/view-file-spreadsheet.js"],
     viewFileSVG: [require.resolve('./polyfills'), paths.appSrc + "/view-file-svg.js"],
     viewFileAudio: [require.resolve('./polyfills'), paths.appSrc + "/view-file-audio.js"],
+    viewFileUnknown: [require.resolve('./polyfills'), paths.appSrc + "/view-file-unknown.js"],
     orgAdmin: [require.resolve('./polyfills'), paths.appSrc + "/pages/org-admin"],
     sysAdmin: [require.resolve('./polyfills'), paths.appSrc + "/pages/sys-admin"],
   },

frontend/src/view-file-unknown.js

@@ -0,0 +1,115 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import watermark from 'watermark-dom';
+import { seafileAPI } from './utils/seafile-api';
+import { siteName } from './utils/constants';
+import FileInfo from './components/file-view/file-info';
+import FileToolbar from './components/file-view/file-toolbar';
+import FileViewTip from './components/file-view/file-view-tip';
+import CommentPanel from './components/file-view/comment-panel';
+
+import './css/file-view.css';
+
+const { isStarred, isLocked, lockedByMe,
+  repoID, filePath, err, enableWatermark, userNickName
+} = window.app.pageOptions;
+
+class ViewFileUnknown extends React.Component {
+
+  constructor(props) {
+    super(props);
+    this.state = {
+      isStarred: isStarred,
+      isLocked: isLocked,
+      lockedByMe: lockedByMe,
+      isCommentPanelOpen: false
+    };
+  }
+
+  toggleCommentPanel = () => {
+    this.setState({
+      isCommentPanelOpen: !this.state.isCommentPanelOpen
+    });
+  }
+
+  toggleStar = () => {
+    if (this.state.isStarred) {
+      seafileAPI.unStarItem(repoID, filePath).then((res) => {
+        this.setState({
+          isStarred: false
+        });
+      });
+    } else {
+      seafileAPI.starItem(repoID, filePath).then((res) => {
+        this.setState({
+          isStarred: true
+        });
+      });
+    }
+  }
+
+  toggleLockFile = () => {
+    if (this.state.isLocked) {
+      seafileAPI.unlockfile(repoID, filePath).then((res) => {
+        this.setState({
+          isLocked: false, 
+          lockedByMe: false 
+        });
+      });
+    } else {
+      seafileAPI.lockfile(repoID, filePath).then((res) => {
+        this.setState({
+          isLocked: true,
+          lockedByMe: true
+        });
+      });
+    }    
+  }
+
+  render() {
+    return (
+      <div className="h-100 d-flex flex-column">
+        <div className="file-view-header d-flex justify-content-between">
+          <FileInfo
+            isStarred={this.state.isStarred}
+            isLocked={this.state.isLocked}
+            toggleStar={this.toggleStar}
+          />
+          <FileToolbar 
+            isLocked={this.state.isLocked}
+            lockedByMe={this.state.lockedByMe}
+            toggleLockFile={this.toggleLockFile}
+            toggleCommentPanel={this.toggleCommentPanel}
+          />
+        </div>
+        <div className="file-view-body flex-auto d-flex">
+          <FileContent />
+          {this.state.isCommentPanelOpen &&
+            <CommentPanel toggleCommentPanel={this.toggleCommentPanel} />
+          }
+        </div>
+      </div>
+    );
+  }
+}
+
+class FileContent extends React.Component {
+
+  render() {
+    if (err) {
+      return <FileViewTip />;
+    }
+  }
+}
+
+if (enableWatermark) {
+  watermark.init({
+    watermark_txt: `${siteName} ${userNickName}`,
+    watermark_alpha: 0.075
+  });
+}
+
+ReactDOM.render (
+  <ViewFileUnknown />,
+  document.getElementById('wrapper')
+);