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dialogs.ts
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dialogs.ts
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// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.
import {
Dialog, showDialog
} from '@jupyterlab/apputils';
import {
PathExt
} from '@jupyterlab/coreutils';
import {
Contents
} from '@jupyterlab/services';
import {
JSONObject
} from '@phosphor/coreutils';
import {
Widget
} from '@phosphor/widgets';
import {
IDocumentManager
} from './';
/**
* The class name added to file dialogs.
*/
const FILE_DIALOG_CLASS = 'jp-FileDialog';
/**
* The class name added for the new name label in the rename dialog
*/
const RENAME_NEWNAME_TITLE_CLASS = 'jp-new-name-title';
/**
* A stripped-down interface for a file container.
*/
export
interface IFileContainer extends JSONObject {
/**
* The list of item names in the current working directory.
*/
items: string[];
/**
* The current working directory of the file container.
*/
path: string;
}
/**
* Rename a file with an optional dialog.
*/
export
function renameDialog(manager: IDocumentManager, oldPath: string): Promise<Contents.IModel | null> {
return showDialog({
title: 'Rename File',
body: new RenameHandler(oldPath),
focusNodeSelector: 'input',
buttons: [Dialog.cancelButton(), Dialog.okButton({ label: 'RENAME' })]
}).then(result => {
if (!result.value) {
return null;
}
let basePath = PathExt.dirname(oldPath);
let newPath = PathExt.join(basePath, result.value);
return renameFile(manager, oldPath, newPath);
});
}
/**
* Rename a file with optional dialog.
*/
export
function renameFile(manager: IDocumentManager, oldPath: string, newPath: string): Promise<Contents.IModel | null> {
return manager.rename(oldPath, newPath).catch(error => {
if (error.xhr) {
error.message = `${error.xhr.statusText} ${error.xhr.status}`;
}
if (error.message.indexOf('409') === -1) {
throw error;
}
return shouldOverwrite(newPath).then(value => {
if (value) {
return manager.overwrite(oldPath, newPath);
}
return Promise.reject('File not renamed');
});
});
}
/**
* Ask the user whether to overwrite a file.
*/
export
function shouldOverwrite(path: string): Promise<boolean> {
let options = {
title: 'Overwrite file?',
body: `"${path}" already exists, overwrite?`,
buttons: [Dialog.cancelButton(), Dialog.warnButton({ label: 'OVERWRITE' })]
};
return showDialog(options).then(result => {
return Promise.resolve(result.button.accept);
});
}
/**
* A widget used to rename a file.
*/
class RenameHandler extends Widget {
/**
* Construct a new "rename" dialog.
*/
constructor(oldPath: string) {
super({ node: Private.createRenameNode(oldPath) });
this.addClass(FILE_DIALOG_CLASS);
let ext = PathExt.extname(oldPath);
let value = this.inputNode.value = PathExt.basename(oldPath);
this.inputNode.setSelectionRange(0, value.length - ext.length);
}
/**
* Get the input text node.
*/
get inputNode(): HTMLInputElement {
return this.node.getElementsByTagName('input')[0] as HTMLInputElement;
}
/**
* Get the value of the widget.
*/
getValue(): string {
return this.inputNode.value;
}
}
/**
* A namespace for private data.
*/
namespace Private {
/**
* Create the node for a rename handler.
*/
export
function createRenameNode(oldPath: string): HTMLElement {
let body = document.createElement('div');
let existingLabel = document.createElement('label');
existingLabel.textContent = 'File Path';
let existingPath = document.createElement('span');
existingPath.textContent = oldPath;
let nameTitle = document.createElement('label');
nameTitle.textContent = 'New Name';
nameTitle.className = RENAME_NEWNAME_TITLE_CLASS;
let name = document.createElement('input');
body.appendChild(existingLabel);
body.appendChild(existingPath);
body.appendChild(nameTitle);
body.appendChild(name);
return body;
}
}