fix：日志组件在没配置 source 的时候不发起请求 (#1548)

src/locale/en-US.ts

@@ -100,6 +100,7 @@ register('en-US', {
   'Image.sizeNotEqual': 'The image you selected does not meet the size requirements {{info}}',
   'Image.width': 'width: {{width}}px',
   'Image.zoomIn': 'Zoom In',
+  'Log.mustHaveSource': 'Must have source in config',
   'link': 'Link',
   'loading': 'Loading',
   'LocationPicker.placeholder': 'Pick location',

src/locale/zh-CN.ts

@@ -101,6 +101,7 @@ register('zh-CN', {
   'Image.sizeNotEqual': '请上传{{info}}的图片',
   'Image.width': '宽度 {{width}}px',
   'Image.zoomIn': '查看大图',
+  'Log.mustHaveSource': '需要配置 Source',
   'link': '链接',
   'loading': '加载中',
   'LocationPicker.placeholder': '请选择位置',

src/renderers/Log.tsx

@@ -93,7 +93,9 @@ export class Log extends React.Component<LogProps, LogState> {
         this.pauseOrResumeScrolling
       );
     }
-    this.loadLogs();
+    if (this.props.source) {
+      this.loadLogs();
+    }
   }
 
   componentDidUpdate() {
@@ -160,14 +162,20 @@ export class Log extends React.Component<LogProps, LogState> {
 
   render() {
     const {
+      source,
       className,
       classnames: cx,
-      render,
       placeholder,
       height,
       translate: __
     } = this.props;
 
+    let loading = __(placeholder);
+
+    if (!source) {
+      loading = __('Log.mustHaveSource');
+    }
+
     const lines = this.state.logs.map((line, index) => {
       return (
         <div className={cx('Log-line')} key={index}>
@@ -182,7 +190,7 @@ export class Log extends React.Component<LogProps, LogState> {
         className={cx('Log', className)}
         style={{height: height}}
       >
-        {lines.length ? lines : __(placeholder)}
+        {lines.length ? lines : loading}
         <div className={cx('Log-line')} key="last">
           <code>{this.state.lastLine}</code>
         </div>