Close all tabs when workspace changes (#1105)

fix https://github.com/ethereum/remix-project/issues/989

apps/remix-ide/src/app.js

@@ -450,7 +450,7 @@ Please make a backup of your contracts and start using http://remix.ethereum.org
   }
 
   await appManager.activatePlugin(['contentImport', 'theme', 'editor', 'fileManager', 'compilerMetadata', 'compilerArtefacts', 'network', 'web3Provider', 'offsetToLineColumnConverter'])
-  await appManager.activatePlugin(['mainPanel', 'menuicons'])
+  await appManager.activatePlugin(['mainPanel', 'menuicons', 'tabs'])
   await appManager.activatePlugin(['sidePanel']) // activating  host plugin separately
   await appManager.activatePlugin(['home'])
   await appManager.activatePlugin(['hiddenPanel', 'pluginManager', 'fileExplorers', 'settings', 'contextualListener', 'terminal', 'fetchAndCompile'])

apps/remix-ide/src/app/files/fileManager.js

@@ -398,6 +398,15 @@ class FileManager extends Plugin {
     return this._deps.config.get('currentFile')
   }
 
+  closeAllFiles () {
+    // TODO: Only keep `this.emit` (issue#2210)
+    this.emit('filesAllClosed')
+    this.events.emit('filesAllClosed')
+    for (const file in this.openedFiles) {
+      this.closeFile(file)
+    }
+  }
+
   closeFile (name) {
     delete this.openedFiles[name]
     if (!Object.keys(this.openedFiles).length) {

apps/remix-ide/src/app/panels/file-panel.js

@@ -225,7 +225,7 @@ module.exports = class Filepanel extends ViewPlugin {
 
   /** these are called by the react component, action is already finished whent it's called */
   async setWorkspace (workspace) {
-    this._deps.fileManager.removeTabsOf(this._deps.fileProviders.workspace)
+    this._deps.fileManager.closeAllFiles()
     if (workspace.isLocalhost) {
       this.call('manager', 'activatePlugin', 'remixd')
     } else if (await this.call('manager', 'isActive', 'remixd')) {

apps/remix-ide/src/app/panels/tab-proxy.js

@@ -37,6 +37,11 @@ export class TabProxy extends Plugin {
       this.updateImgStyles()
     })
 
+    fileManager.events.on('filesAllClosed', () => {
+      this.call('manager', 'activatePlugin', 'home')
+      this._view.filetabs.active = 'home'
+    })
+
     fileManager.events.on('fileRemoved', (name) => {
       const workspace = this.fileManager.currentWorkspace()
 

libs/remix-ui/workspace/src/lib/remix-ui-workspace.tsx

@@ -223,7 +223,7 @@ export const Workspace = (props: WorkspaceProps) => {
   }
 
   const setWorkspace = async (name) => {
-    props.setWorkspace({ name, isLocalhost: name === LOCALHOST })
+    await props.setWorkspace({ name, isLocalhost: name === LOCALHOST })
     if (name === LOCALHOST) {
       props.workspace.clearWorkspace()
     } else if (name === NO_WORKSPACE) {
@@ -238,8 +238,8 @@ export const Workspace = (props: WorkspaceProps) => {
   }
 
   const remixdExplorer = {
-    hide: () => {
+    hide: async () => {
-      if (state.currentWorkspace === LOCALHOST) setWorkspace(NO_WORKSPACE)
+      await setWorkspace(NO_WORKSPACE)
       props.fileManager.setMode('browser')
       setState(prevState => {
         return { ...prevState, hideRemixdExplorer: true, loadingLocalhost: false }