add button: clear cache

app/mycard.component.html

@@ -78,6 +78,8 @@
                     </div>
                 </div>
                 <div class="modal-footer">
+                    <button i18n type="button" class="btn btn-danger" style="margin-right: auto" (click)="clear_cache()"
+                        data-toggle="tooltip" i18n-title title="清除MyCard的缓存，并重启MyCard">清除缓存</button>
                     <button i18n type="button" class="btn btn-secondary" data-dismiss="modal">取消</button>
                     <button i18n type="submit" class="btn btn-primary">确定</button>
                 </div>

app/mycard.component.ts

@@ -66,6 +66,9 @@ export class MyCardComponent implements OnInit {
                 this.currentWindow.webContents.openDevTools({ mode: 'undocked' });
             }
         });
+        //$('[data-toggle="tooltip"]').tooltip();
+        // bootstrap有BUG不能用这玩意
+
         // document.addEventListener('drop', (event)=>{
         //     console.log('drop', event);
         //     event.preventDefault();
@@ -133,6 +136,28 @@ export class MyCardComponent implements OnInit {
         shell.openExternal(url);
     }
 
+    clear_cache() {
+        // 删除下载中的文件可能会出问题 先不搞
+        // 需要 import * as fs from 'fs-extra';
+        /*let downloadingDirPath = path.join(this.settingsService.getDefaultLibrary().path, 'downloading');
+        console.log('removing downloading dir', downloadingDirPath);
+        fs.remove(downloadingDirPath, (error: any) => {
+            if (error) { console.error(error); }
+            remote.getCurrentWebContents().session.clearCache((error: any) => {
+                if (error) { console.error(error); }
+                console.log('cache cleared', error);
+                remote.app.relaunch();
+                remote.app.quit();
+            });
+        });*/
+        remote.getCurrentWebContents().session.clearCache((error: any) => {
+            if (error) { console.error(error); }
+            console.log('cache cleared', error);
+            remote.app.relaunch();
+            remote.app.quit();
+        });
+    }
+
     submit() {
         if (this.locale !== this.settingsService.getLocale()) {
             localStorage.setItem(SettingsService.SETTING_LOCALE, this.locale);