/**
 * The main application entry point.
 */
function main(): void {
  // Create the key bindings for the shortcuts.
  let bindings = SHORTCUTS.map(makeLogBinding);

  // Initialize the keymap manager with the bindings.
  let keymap = new KeymapManager();
  keymap.add(bindings);

  // Setup the keydown listener for the document.
  document.addEventListener('keydown', event => {
    keymap.processKeydownEvent(event);
  });

  // Create and add the list of shortcuts to the DOM.
  let host = document.getElementById('list-host');
  host.appendChild(createList(SHORTCUTS));
}

function createApp(sessionsManager: NotebookSessionManager, specs: IKernelSpecIds): void {
  // Initialize the keymap manager with the bindings.
  let keymap = new KeymapManager();
  let useCapture = true;

  // Setup the keydown listener for the document.
  document.addEventListener('keydown', event => {
    keymap.processKeydownEvent(event);
  }, useCapture);

  const transformers = [
    new JavascriptRenderer(),
    new MarkdownRenderer(),
    new HTMLRenderer(),
    new ImageRenderer(),
    new SVGRenderer(),
    new LatexRenderer(),
    new TextRenderer()
  ];
  let renderers: MimeMap<IRenderer<Widget>> = {};
  let order: string[] = [];
  for (let t of transformers) {
    for (let m of t.mimetypes) {
      renderers[m] = t;
      order.push(m);
    }
  }
  let rendermime = new RenderMime<Widget>(renderers, order);

  let opener = {
    open: (widget: DocumentWrapper) => {
      // Do nothing for sibling widgets for now.
    }
  };

  let contentsManager = new ContentsManager();
  let docRegistry = new DocumentRegistry();
  let docManager = new DocumentManager(
    docRegistry, contentsManager, sessionsManager, specs, opener
  );
  let mFactory = new NotebookModelFactory();
  let clipboard = new MimeData();
  let wFactory = new NotebookWidgetFactory(rendermime, clipboard);
  docRegistry.registerModelFactory(mFactory);
  docRegistry.registerWidgetFactory(wFactory, {
    displayName: 'Notebook',
    modelName: 'notebook',
    fileExtensions: ['.ipynb'],
    defaultFor: ['.ipynb'],
    preferKernel: true,
    canStartKernel: true
  });

  let doc = docManager.open(NOTEBOOK);
  let nbWidget: NotebookPanel;
  doc.populated.connect((d, widget) => {
    nbWidget = widget as NotebookPanel;
  });

  let pModel = new StandardPaletteModel();
  let palette = new CommandPalette();
  palette.model = pModel;

  let panel = new SplitPanel();
  panel.id = 'main';
  panel.orientation = SplitPanel.Horizontal;
  panel.spacing = 0;
  SplitPanel.setStretch(palette, 0);
  panel.attach(document.body);
  panel.addChild(palette);
  panel.addChild(doc);
  SplitPanel.setStretch(doc, 1);
  window.onresize = () => panel.update();

  let saveHandler = () => nbWidget.context.save();
  let interruptHandler = () => {
    if (nbWidget.context.kernel) {
      nbWidget.context.kernel.interrupt();
    }
  };
  let restartHandler = () => nbWidget.restart();
  let switchHandler = () => {
    selectKernelForContext(nbWidget.context, nbWidget.node);
  };
  let runAdvanceHandler = () => {
    NotebookActions.runAndAdvance(nbWidget.content, nbWidget.context.kernel);
  };
  let editHandler = () => { nbWidget.content.mode = 'edit'; };
  let commandHandler = () => { nbWidget.content.mode = 'command'; };
  let codeHandler = () => {
    NotebookActions.changeCellType(nbWidget.content, 'code');
  };
  let markdownHandler = () => {
    NotebookActions.changeCellType(nbWidget.content, 'markdown');
  };
  let rawHandler = () => {
    NotebookActions.changeCellType(nbWidget.content, 'raw');
  };
  let selectBelowHandler = () => {
    NotebookActions.selectBelow(nbWidget.content);
//.........这里部分代码省略.........

function main(): void {
  // Initialize the keymap manager with the bindings.
  var keymap = new KeymapManager();

  // Setup the keydown listener for the document.
  document.addEventListener('keydown', event => {
    keymap.processKeydownEvent(event);
  });
  // TODO: check out static example from the history
  // and make that a separate example.

  let contents = new ContentsManager(SERVER_URL);
  let nbModel = new NotebookModel();
  let nbManager = new NotebookManager(nbModel, contents);
  let rendermime = new RenderMime<Widget>();
  const transformers = [
    new JavascriptRenderer(),
    new HTMLRenderer(),
    new ImageRenderer(),
    new SVGRenderer(),
    new LatexRenderer(),
    new ConsoleTextRenderer(),
    new TextRenderer()
  ];

  for (let t of transformers) {
    for (let m of t.mimetypes) {
      rendermime.order.push(m);
      rendermime.renderers[m] = t;
    }
  }

  let nbWidget = new NotebookPanel(nbManager, rendermime);
  nbWidget.title.text = NOTEBOOK;

  let pModel = new StandardPaletteModel();
  let palette = new CommandPalette();
  palette.model = pModel;

  let panel = new SplitPanel();
  panel.id = 'main';
  panel.orientation = SplitPanel.Horizontal;
  SplitPanel.setStretch(palette, 1);
  SplitPanel.setStretch(nbWidget, 2);
  panel.attach(document.body);
  panel.addChild(palette);
  panel.addChild(nbWidget);
  window.onresize = () => { panel.update(); };

  let kernelspecs: IKernelSpecIds;

  let items: IStandardPaletteItemOptions[] = [
  {
    category: 'Notebook',
    text: 'Save',
    shortcut: 'Accel S',
    handler: () => { nbManager.save() ; }
  },
  {
    category: 'Notebook',
    text: 'Switch Kernel',
    handler: () => {
      if (!kernelspecs) {
        return;
      }
      selectKernel(nbWidget.node, nbModel, kernelspecs);
    }
  },
  {
    category: 'Notebook',
    text: 'Interrupt Kernel',
    shortcut: 'I I',
    handler: () => { nbManager.interrupt() ; }
  },
  {
    category: 'Notebook',
    text: 'Restart Kernel',
    shortcut: '0 0',
    handler: () => { nbManager.restart() ; }
  },
  {
    category: 'Notebook',
    text: 'Trust Notebook',
    handler: () => {
      trustNotebook(nbModel, nbWidget.node);
    }
  },
  {
    category: 'Notebook Cell',
    text: 'Run and Advance',
    shortcut: 'Shift Enter',
    handler: () => { nbManager.runAndAdvance(); }
  },
  {
    category: 'Notebook Cell',
    text: 'Run Selected',
    handler: () => { nbManager.run(); }
  },
  {
    category: 'Notebook Cell',
//.........这里部分代码省略.........

function createApp(sessionsManager: NotebookSessionManager, specs: IKernelSpecIds): void {
  let contentsManager = new ContentsManager();
  let widgets: DocumentWrapper[] = [];
  let activeWidget: DocumentWrapper;

  let opener = {
    open: (widget: DocumentWrapper) => {
      if (widgets.indexOf(widget) === -1) {
        dock.insertTabAfter(widget);
        widgets.push(widget);
      }
      dock.selectWidget(widget);
      activeWidget = widget;
      widget.disposed.connect((w: DocumentWrapper) => {
        let index = widgets.indexOf(w);
        widgets.splice(index, 1);
      });
    }
  };

  let docRegistry = new DocumentRegistry();
  let docManager = new DocumentManager(
    docRegistry, contentsManager, sessionsManager, specs, opener
  );
  let mFactory = new TextModelFactory();
  let wFactory = new EditorWidgetFactory();
  docRegistry.addModelFactory(mFactory);
  docRegistry.addWidgetFactory(wFactory, {
    displayName: 'Editor',
    modelName: 'text',
    fileExtensions: ['.*'],
    defaultFor: ['.*'],
    preferKernel: false,
    canStartKernel: true
  });

  let fbModel = new FileBrowserModel(contentsManager, sessionsManager, specs);
  let fbWidget = new FileBrowserWidget(fbModel, docManager, opener);

  let panel = new SplitPanel();
  panel.id = 'main';
  panel.addChild(fbWidget);
  SplitPanel.setStretch(fbWidget, 0);
  let dock = new DockPanel();
  panel.addChild(dock);
  SplitPanel.setStretch(dock, 1);
  dock.spacing = 8;

  document.addEventListener('focus', event => {
    for (let i = 0; i < widgets.length; i++) {
      let widget = widgets[i];
      if (widget.node.contains(event.target as HTMLElement)) {
        activeWidget = widget;
        break;
      }
    }
  });

  let keymapManager = new KeymapManager();
  keymapManager.add([{
    sequence: ['Enter'],
    selector: '.jp-DirListing',
    handler: () => {
      fbWidget.open();
    }
  }, {
    sequence: ['Ctrl N'], // Add emacs keybinding for select next.
    selector: '.jp-DirListing',
    handler: () => {
      fbWidget.selectNext();
    }
  }, {
    sequence: ['Ctrl P'], // Add emacs keybinding for select previous.
    selector: '.jp-DirListing',
    handler: () => {
      fbWidget.selectPrevious();
    }
  }, {
    sequence: ['Accel S'],
    selector: '.jp-CodeMirrorWidget',
    handler: () => {
      activeWidget.context.save();
    }
  }]);

  window.addEventListener('keydown', (event) => {
    keymapManager.processKeydownEvent(event);
  });

  let contextMenu = new Menu([
    new MenuItem({
      text: '&Open',
      icon: 'fa fa-folder-open-o',
      shortcut: 'Ctrl+O',
      handler: () => { fbWidget.open(); }
    }),
    new MenuItem({
      text: '&Rename',
      icon: 'fa fa-edit',
      shortcut: 'Ctrl+R',
//.........这里部分代码省略.........

function startApp(session: ISession) {
  // Initialize the keymap manager with the bindings.
  let keymap = new KeymapManager();

  // Setup the keydown listener for the document.
  document.addEventListener('keydown', event => {
    keymap.processKeydownEvent(event);
  });

  const transformers = [
    new JavascriptRenderer(),
    new MarkdownRenderer(),
    new HTMLRenderer(),
    new ImageRenderer(),
    new SVGRenderer(),
    new LatexRenderer(),
    new TextRenderer()
  ];
  let renderers: MimeMap<IRenderer<Widget>> = {};
  let order: string[] = [];
  for (let t of transformers) {
    for (let m of t.mimetypes) {
      renderers[m] = t;
      order.push(m);
    }
  }
  let rendermime = new RenderMime<Widget>(renderers, order);

  let consolePanel = new ConsolePanel(session, rendermime);
  consolePanel.title.text = TITLE;

  let pModel = new StandardPaletteModel();
  let palette = new CommandPalette();
  palette.model = pModel;

  let panel = new SplitPanel();
  panel.id = 'main';
  panel.orientation = SplitPanel.Horizontal;
  panel.spacing = 0;
  SplitPanel.setStretch(palette, 0);
  SplitPanel.setStretch(consolePanel, 1);
  panel.attach(document.body);
  panel.addChild(palette);
  panel.addChild(consolePanel);
  window.onresize = () => { panel.update(); };

  let items: IStandardPaletteItemOptions[] = [
    {
      category: 'Console',
      text: 'Clear',
      shortcut: 'Accel R',
      handler: () => { consolePanel.content.clear(); }
    },
    {
      category: 'Console',
      text: 'Execute Prompt',
      shortcut: 'Shift Enter',
      handler: () => { consolePanel.content.execute(); }
    }
  ];
  pModel.addItems(items);

  let bindings = [
    {
      selector: '.jp-Console',
      sequence: ['Accel R'],
      handler: () => { consolePanel.content.clear(); }
    },
    {
      selector: '.jp-Console',
      sequence: ['Shift Enter'],
      handler: () => { consolePanel.content.execute(); }
    }
  ];
  keymap.add(bindings);
}

function main(): void {

  let baseUrl = getConfigOption('baseUrl');
  let contentsManager = new ContentsManager(baseUrl);
  let sessionsManager = new NotebookSessionManager({ baseUrl: baseUrl });

  let fbModel = new FileBrowserModel(contentsManager, sessionsManager);
  let fbWidget = new FileBrowserWidget(fbModel)

  let fileHandler = new FileHandler(contentsManager);
  let docManager = new DocumentManager();
  docManager.registerDefault(fileHandler);

  let panel = new SplitPanel();
  panel.id = 'main';
  panel.addChild(fbWidget);
  SplitPanel.setStretch(fbWidget, 0);
  let dock = new DockPanel();
  panel.addChild(dock);
  SplitPanel.setStretch(dock, 1);
  dock.spacing = 8;

  fbWidget.widgetFactory = model => {
    return docManager.open(model);
  };

  fbModel.openRequested.connect((fbModel, model) => {
    let editor = docManager.open(model);
    dock.insertTabAfter(editor);
  });

  fbModel.fileChanged.connect((fbModel, args) => {
    docManager.rename(args.oldValue, args.newValue);
  });

  let keymapManager = new KeymapManager();
  keymapManager.add([{
    sequence: ['Enter'],
    selector: '.jp-DirListing',
    handler: () => {
      fbWidget.open();
      return true;
    }
  }, {
    sequence: ['Ctrl N'], // Add emacs keybinding for select next.
    selector: '.jp-DirListing',
    handler: () => {
      fbWidget.selectNext();
      return true;
    }
  }, {
    sequence: ['Ctrl P'], // Add emacs keybinding for select previous.
    selector: '.jp-DirListing',
    handler: () => {
      fbWidget.selectPrevious();
      return true;
    }
  }, {
    sequence: ['Accel S'],
    selector: '.jp-CodeMirrorWidget',
    handler: () => {
      docManager.save();
      return true;
    }
  }]);

  window.addEventListener('keydown', (event) => {
    keymapManager.processKeydownEvent(event);
  });

  let contextMenu = new Menu([
    new MenuItem({
      text: '&Open',
      icon: 'fa fa-folder-open-o',
      shortcut: 'Ctrl+O',
      handler: () => { fbWidget.open(); }
    }),
    new MenuItem({
      text: '&Rename',
      icon: 'fa fa-edit',
      shortcut: 'Ctrl+R',
      handler: () => { fbWidget.rename(); }
    }),
    new MenuItem({
      text: '&Delete',
      icon: 'fa fa-remove',
      shortcut: 'Ctrl+D',
      handler: () => { fbWidget.delete(); }
    }),
    new MenuItem({
      text: 'Duplicate',
      icon: 'fa fa-copy',
      handler: () => { fbWidget.duplicate(); }
    }),
    new MenuItem({
      text: 'Cut',
      icon: 'fa fa-cut',
      shortcut: 'Ctrl+X',
      handler: () => { fbWidget.cut(); }
    }),
//.........这里部分代码省略.........

function main(): void {

  let baseUrl = getConfigOption('baseUrl');
  let contentsManager = new ContentsManager(baseUrl);
  let sessionsManager = new NotebookSessionManager({ baseUrl: baseUrl });

  let fbModel = new FileBrowserModel(contentsManager, sessionsManager);
  let registry = new FileHandlerRegistry();
  let fileHandler = new FileHandler(contentsManager);

  registry.addDefaultHandler(fileHandler);

  let fbWidget = new FileBrowserWidget(fbModel, registry);

  let dirCreator = new FileCreator(contentsManager, 'directory');
  let fileCreator = new FileCreator(contentsManager, 'file');
  registry.addCreator(
    'New Directory', dirCreator.createNew.bind(dirCreator));
  registry.addCreator('New File', fileCreator.createNew.bind(fileCreator));

  let widgets: CodeMirrorWidget[] = [];
  registry.opened.connect((r, widget) => {
    dock.insertTabAfter(widget);
    widgets.push(widget as CodeMirrorWidget);
  });

  let panel = new SplitPanel();
  panel.id = 'main';
  panel.addChild(fbWidget);
  SplitPanel.setStretch(fbWidget, 0);
  let dock = new DockPanel();
  panel.addChild(dock);
  SplitPanel.setStretch(dock, 1);
  dock.spacing = 8;

  let activeWidget: CodeMirrorWidget;

  document.addEventListener('focus', event => {
    for (let i = 0; i < widgets.length; i++) {
      let widget = widgets[i];
      if (widget.node.contains(event.target as HTMLElement)) {
        activeWidget = widget;
        break;
      }
    }
  });

  let keymapManager = new KeymapManager();
  keymapManager.add([{
    sequence: ['Enter'],
    selector: '.jp-DirListing',
    handler: () => {
      fbWidget.open();
      return true;
    }
  }, {
    sequence: ['Ctrl N'], // Add emacs keybinding for select next.
    selector: '.jp-DirListing',
    handler: () => {
      fbWidget.selectNext();
      return true;
    }
  }, {
    sequence: ['Ctrl P'], // Add emacs keybinding for select previous.
    selector: '.jp-DirListing',
    handler: () => {
      fbWidget.selectPrevious();
      return true;
    }
  }, {
    sequence: ['Accel S'],
    selector: '.jp-CodeMirrorWidget',
    handler: () => {
      let path = fileHandler.findModel(activeWidget).path;
      fileHandler.save(path);
      return true;
    }
  }]);

  window.addEventListener('keydown', (event) => {
    keymapManager.processKeydownEvent(event);
  });

  let contextMenu = new Menu([
    new MenuItem({
      text: '&Open',
      icon: 'fa fa-folder-open-o',
      shortcut: 'Ctrl+O',
      handler: () => { fbWidget.open(); }
    }),
    new MenuItem({
      text: '&Rename',
      icon: 'fa fa-edit',
      shortcut: 'Ctrl+R',
      handler: () => { fbWidget.rename(); }
    }),
    new MenuItem({
      text: '&Delete',
      icon: 'fa fa-remove',
      shortcut: 'Ctrl+D',
//.........这里部分代码省略.........

function main(): void {
  // Initialize the keymap manager with the bindings.
  var keymap = new KeymapManager();
  let useCapture = true;

  // Setup the keydown listener for the document.
  document.addEventListener('keydown', event => {
    keymap.processKeydownEvent(event);
  }, useCapture);
  // TODO: check out static example from the history
  // and make that a separate example.

  let contents = new ContentsManager();
  let sessions = new NotebookSessionManager();
  let rendermime = new RenderMime<Widget>();
  const transformers = [
    new JavascriptRenderer(),
    new MarkdownRenderer(),
    new HTMLRenderer(),
    new ImageRenderer(),
    new SVGRenderer(),
    new LatexRenderer(),
    new ConsoleTextRenderer(),
    new TextRenderer()
  ];

  for (let t of transformers) {
    for (let m of t.mimetypes) {
      rendermime.order.push(m);
      rendermime.renderers[m] = t;
    }
  }

  let handler = new NotebookFileHandler(contents, sessions, rendermime);
  let nbWidget = handler.open(NOTEBOOK);
  let nbModel = nbWidget.model;
  let nbManager = nbWidget.manager;

  let pModel = new StandardPaletteModel();
  let palette = new CommandPalette();
  palette.model = pModel;

  let panel = new SplitPanel();
  panel.id = 'main';
  panel.orientation = SplitPanel.Horizontal;
  panel.spacing = 0;
  SplitPanel.setStretch(palette, 0);
  SplitPanel.setStretch(nbWidget, 1);
  panel.attach(document.body);
  panel.addChild(palette);
  panel.addChild(nbWidget);
  window.onresize = () => { panel.update(); };

  let kernelspecs: IKernelSpecIds;

  let items: IStandardPaletteItemOptions[] = [
  {
    category: 'Notebook',
    text: 'Save',
    shortcut: 'Accel S',
    handler: () => { nbManager.save() ; }
  },
  {
    category: 'Notebook',
    text: 'Switch Kernel',
    handler: () => {
      if (!kernelspecs) {
        return;
      }
      selectKernel(nbWidget.node, nbModel.kernelspec.name, kernelspecs)
        .then(name => {
          if (name) {
            nbModel.session.changeKernel({name});
          }
        });
    }
  },
  {
    category: 'Notebook',
    text: 'Interrupt Kernel',
    shortcut: 'I I',
    handler: () => { nbManager.interrupt() ; }
  },
  {
    category: 'Notebook',
    text: 'Restart Kernel',
    shortcut: '0 0',
    handler: () => { nbManager.restart() ; }
  },
  {
    category: 'Notebook',
    text: 'Trust Notebook',
    handler: () => {
      trustNotebook(nbModel, nbWidget.node);
    }
  },
  {
    category: 'Notebook Cell',
    text: 'Run and Advance',
    shortcut: 'Shift Enter',
//.........这里部分代码省略.........

function main(): void {
  // Initialize the keymap manager with the bindings.
  var keymap = new KeymapManager();

  // Setup the keydown listener for the document.
  document.addEventListener('keydown', event => {
    keymap.processKeydownEvent(event);
  });

  let contents = new ContentsManager(SERVER_URL);
  let rendermime = new RenderMime<Widget>();
  const transformers = [
    new JavascriptRenderer(),
    new HTMLRenderer(),
    new ImageRenderer(),
    new SVGRenderer(),
    new LatexRenderer(),
    new ConsoleTextRenderer(),
    new TextRenderer(),
    new MarkdownRenderer()
  ];

  for (let t of transformers) {
    for (let m of t.mimetypes) {
      rendermime.order.push(m);
      rendermime.renderers[m] = t;
    }
  }

  let consoleModel = new ConsoleModel();
  let consoleWidget = new ConsolePanel(consoleModel, rendermime);
  consoleWidget.title.text = TITLE;

  let pModel = new StandardPaletteModel();
  let palette = new CommandPalette();
  palette.model = pModel;

  let panel = new SplitPanel();
  panel.id = 'main';
  panel.orientation = SplitPanel.Horizontal;
  panel.spacing = 0;
  SplitPanel.setStretch(palette, 0);
  SplitPanel.setStretch(consoleWidget, 1);
  panel.attach(document.body);
  panel.addChild(palette);
  panel.addChild(consoleWidget);
  window.onresize = () => { panel.update(); };

  let kernelspecs: IKernelSpecIds;

  let items: IStandardPaletteItemOptions[] = [
    {
      category: 'Console',
      text: 'Execute Prompt',
      shortcut: 'Shift Enter',
      handler: () => { consoleModel.run(); }
    }
  ];
  pModel.addItems(items);

  let bindings = [
    {
      selector: '.jp-Console',
      sequence: ['Shift Enter'],
      handler: () => { consoleModel.run(); }
    }
  ]
  keymap.add(bindings);

  getKernelSpecs({}).then(specs => {
    kernelspecs = specs;
    let kernelName = specs.default;
    let language = specs.default;
    console.log('specs', specs);
    return startNewSession({
      notebookPath: 'fake_path',
      kernelName: findKernel(kernelName, language, specs),
      baseUrl: SERVER_URL
    });
  }).then(session => consoleModel.session = session);
}