379 строки
20 KiB
Markdown
379 строки
20 KiB
Markdown
---
|
|
title: "dialog"
|
|
description: "Display native system dialogs for opening and saving files, alerting, etc."
|
|
slug: dialog
|
|
hide_title: false
|
|
---
|
|
|
|
# dialog
|
|
|
|
> Display native system dialogs for opening and saving files, alerting, etc.
|
|
|
|
Process: [Main](latest/glossary.md#main-process)
|
|
|
|
An example of showing a dialog to select multiple files:
|
|
|
|
```js
|
|
const { dialog } = require('electron')
|
|
console.log(dialog.showOpenDialog({ properties: ['openFile', 'multiSelections'] }))
|
|
```
|
|
|
|
## Methods
|
|
|
|
The `dialog` module has the following methods:
|
|
|
|
### `dialog.showOpenDialogSync([window, ]options)`
|
|
|
|
* `window` [BaseWindow](latest/api/base-window.md) (optional)
|
|
* `options` Object
|
|
* `title` string (optional)
|
|
* `defaultPath` string (optional)
|
|
* `buttonLabel` string (optional) - Custom label for the confirmation button, when
|
|
left empty the default label will be used.
|
|
* `filters` [FileFilter[]](latest/api/structures/file-filter.md) (optional)
|
|
* `properties` string[] (optional) - Contains which features the dialog should
|
|
use. The following values are supported:
|
|
* `openFile` - Allow files to be selected.
|
|
* `openDirectory` - Allow directories to be selected.
|
|
* `multiSelections` - Allow multiple paths to be selected.
|
|
* `showHiddenFiles` - Show hidden files in dialog.
|
|
* `createDirectory` _macOS_ - Allow creating new directories from dialog.
|
|
* `promptToCreate` _Windows_ - Prompt for creation if the file path entered
|
|
in the dialog does not exist. This does not actually create the file at
|
|
the path but allows non-existent paths to be returned that should be
|
|
created by the application.
|
|
* `noResolveAliases` _macOS_ - Disable the automatic alias (symlink) path
|
|
resolution. Selected aliases will now return the alias path instead of
|
|
their target path.
|
|
* `treatPackageAsDirectory` _macOS_ - Treat packages, such as `.app` folders,
|
|
as a directory instead of a file.
|
|
* `dontAddToRecent` _Windows_ - Do not add the item being opened to the recent documents list.
|
|
* `message` string (optional) _macOS_ - Message to display above input
|
|
boxes.
|
|
* `securityScopedBookmarks` boolean (optional) _macOS_ _mas_ - Create [security scoped bookmarks](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store.
|
|
|
|
Returns `string[] | undefined`, the file paths chosen by the user; if the dialog is cancelled it returns `undefined`.
|
|
|
|
The `window` argument allows the dialog to attach itself to a parent window, making it modal.
|
|
|
|
The `filters` specifies an array of file types that can be displayed or
|
|
selected when you want to limit the user to a specific type. For example:
|
|
|
|
```js
|
|
{
|
|
filters: [
|
|
{ name: 'Images', extensions: ['jpg', 'png', 'gif'] },
|
|
{ name: 'Movies', extensions: ['mkv', 'avi', 'mp4'] },
|
|
{ name: 'Custom File Type', extensions: ['as'] },
|
|
{ name: 'All Files', extensions: ['*'] }
|
|
]
|
|
}
|
|
```
|
|
|
|
The `extensions` array should contain extensions without wildcards or dots (e.g.
|
|
`'png'` is good but `'.png'` and `'*.png'` are bad). To show all files, use the
|
|
`'*'` wildcard (no other wildcard is supported).
|
|
|
|
**Note:** On Windows and Linux an open dialog can not be both a file selector
|
|
and a directory selector, so if you set `properties` to
|
|
`['openFile', 'openDirectory']` on these platforms, a directory selector will be
|
|
shown.
|
|
|
|
```js @ts-type={mainWindow:Electron.BaseWindow}
|
|
dialog.showOpenDialogSync(mainWindow, {
|
|
properties: ['openFile', 'openDirectory']
|
|
})
|
|
```
|
|
|
|
### `dialog.showOpenDialog([window, ]options)`
|
|
|
|
* `window` [BaseWindow](latest/api/base-window.md) (optional)
|
|
* `options` Object
|
|
* `title` string (optional)
|
|
* `defaultPath` string (optional)
|
|
* `buttonLabel` string (optional) - Custom label for the confirmation button, when
|
|
left empty the default label will be used.
|
|
* `filters` [FileFilter[]](latest/api/structures/file-filter.md) (optional)
|
|
* `properties` string[] (optional) - Contains which features the dialog should
|
|
use. The following values are supported:
|
|
* `openFile` - Allow files to be selected.
|
|
* `openDirectory` - Allow directories to be selected.
|
|
* `multiSelections` - Allow multiple paths to be selected.
|
|
* `showHiddenFiles` - Show hidden files in dialog.
|
|
* `createDirectory` _macOS_ - Allow creating new directories from dialog.
|
|
* `promptToCreate` _Windows_ - Prompt for creation if the file path entered
|
|
in the dialog does not exist. This does not actually create the file at
|
|
the path but allows non-existent paths to be returned that should be
|
|
created by the application.
|
|
* `noResolveAliases` _macOS_ - Disable the automatic alias (symlink) path
|
|
resolution. Selected aliases will now return the alias path instead of
|
|
their target path.
|
|
* `treatPackageAsDirectory` _macOS_ - Treat packages, such as `.app` folders,
|
|
as a directory instead of a file.
|
|
* `dontAddToRecent` _Windows_ - Do not add the item being opened to the recent documents list.
|
|
* `message` string (optional) _macOS_ - Message to display above input
|
|
boxes.
|
|
* `securityScopedBookmarks` boolean (optional) _macOS_ _mas_ - Create [security scoped bookmarks](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store.
|
|
|
|
Returns `Promise<Object>` - Resolve with an object containing the following:
|
|
|
|
* `canceled` boolean - whether or not the dialog was canceled.
|
|
* `filePaths` string[] - An array of file paths chosen by the user. If the dialog is cancelled this will be an empty array.
|
|
* `bookmarks` string[] (optional) _macOS_ _mas_ - An array matching the `filePaths` array of base64 encoded strings which contains security scoped bookmark data. `securityScopedBookmarks` must be enabled for this to be populated. (For return values, see [table here](#bookmarks-array).)
|
|
|
|
The `window` argument allows the dialog to attach itself to a parent window, making it modal.
|
|
|
|
The `filters` specifies an array of file types that can be displayed or
|
|
selected when you want to limit the user to a specific type. For example:
|
|
|
|
```js
|
|
{
|
|
filters: [
|
|
{ name: 'Images', extensions: ['jpg', 'png', 'gif'] },
|
|
{ name: 'Movies', extensions: ['mkv', 'avi', 'mp4'] },
|
|
{ name: 'Custom File Type', extensions: ['as'] },
|
|
{ name: 'All Files', extensions: ['*'] }
|
|
]
|
|
}
|
|
```
|
|
|
|
The `extensions` array should contain extensions without wildcards or dots (e.g.
|
|
`'png'` is good but `'.png'` and `'*.png'` are bad). To show all files, use the
|
|
`'*'` wildcard (no other wildcard is supported).
|
|
|
|
**Note:** On Windows and Linux an open dialog can not be both a file selector
|
|
and a directory selector, so if you set `properties` to
|
|
`['openFile', 'openDirectory']` on these platforms, a directory selector will be
|
|
shown.
|
|
|
|
```js @ts-type={mainWindow:Electron.BaseWindow}
|
|
dialog.showOpenDialog(mainWindow, {
|
|
properties: ['openFile', 'openDirectory']
|
|
}).then(result => {
|
|
console.log(result.canceled)
|
|
console.log(result.filePaths)
|
|
}).catch(err => {
|
|
console.log(err)
|
|
})
|
|
```
|
|
|
|
### `dialog.showSaveDialogSync([window, ]options)`
|
|
|
|
* `window` [BaseWindow](latest/api/base-window.md) (optional)
|
|
* `options` Object
|
|
* `title` string (optional) - The dialog title. Cannot be displayed on some _Linux_ desktop environments.
|
|
* `defaultPath` string (optional) - Absolute directory path, absolute file
|
|
path, or file name to use by default.
|
|
* `buttonLabel` string (optional) - Custom label for the confirmation button, when
|
|
left empty the default label will be used.
|
|
* `filters` [FileFilter[]](latest/api/structures/file-filter.md) (optional)
|
|
* `message` string (optional) _macOS_ - Message to display above text fields.
|
|
* `nameFieldLabel` string (optional) _macOS_ - Custom label for the text
|
|
displayed in front of the filename text field.
|
|
* `showsTagField` boolean (optional) _macOS_ - Show the tags input box,
|
|
defaults to `true`.
|
|
* `properties` string[] (optional)
|
|
* `showHiddenFiles` - Show hidden files in dialog.
|
|
* `createDirectory` _macOS_ - Allow creating new directories from dialog.
|
|
* `treatPackageAsDirectory` _macOS_ - Treat packages, such as `.app` folders,
|
|
as a directory instead of a file.
|
|
* `showOverwriteConfirmation` _Linux_ - Sets whether the user will be presented a confirmation dialog if the user types a file name that already exists.
|
|
* `dontAddToRecent` _Windows_ - Do not add the item being saved to the recent documents list.
|
|
* `securityScopedBookmarks` boolean (optional) _macOS_ _mas_ - Create a [security scoped bookmark](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store. If this option is enabled and the file doesn't already exist a blank file will be created at the chosen path.
|
|
|
|
Returns `string`, the path of the file chosen by the user; if the dialog is cancelled it returns an empty string.
|
|
|
|
The `window` argument allows the dialog to attach itself to a parent window, making it modal.
|
|
|
|
The `filters` specifies an array of file types that can be displayed, see
|
|
`dialog.showOpenDialog` for an example.
|
|
|
|
### `dialog.showSaveDialog([window, ]options)`
|
|
|
|
* `window` [BaseWindow](latest/api/base-window.md) (optional)
|
|
* `options` Object
|
|
* `title` string (optional) - The dialog title. Cannot be displayed on some _Linux_ desktop environments.
|
|
* `defaultPath` string (optional) - Absolute directory path, absolute file
|
|
path, or file name to use by default.
|
|
* `buttonLabel` string (optional) - Custom label for the confirmation button, when
|
|
left empty the default label will be used.
|
|
* `filters` [FileFilter[]](latest/api/structures/file-filter.md) (optional)
|
|
* `message` string (optional) _macOS_ - Message to display above text fields.
|
|
* `nameFieldLabel` string (optional) _macOS_ - Custom label for the text
|
|
displayed in front of the filename text field.
|
|
* `showsTagField` boolean (optional) _macOS_ - Show the tags input box, defaults to `true`.
|
|
* `properties` string[] (optional)
|
|
* `showHiddenFiles` - Show hidden files in dialog.
|
|
* `createDirectory` _macOS_ - Allow creating new directories from dialog.
|
|
* `treatPackageAsDirectory` _macOS_ - Treat packages, such as `.app` folders,
|
|
as a directory instead of a file.
|
|
* `showOverwriteConfirmation` _Linux_ - Sets whether the user will be presented a confirmation dialog if the user types a file name that already exists.
|
|
* `dontAddToRecent` _Windows_ - Do not add the item being saved to the recent documents list.
|
|
* `securityScopedBookmarks` boolean (optional) _macOS_ _mas_ - Create a [security scoped bookmark](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store. If this option is enabled and the file doesn't already exist a blank file will be created at the chosen path.
|
|
|
|
Returns `Promise<Object>` - Resolve with an object containing the following:
|
|
|
|
* `canceled` boolean - whether or not the dialog was canceled.
|
|
* `filePath` string - If the dialog is canceled, this will be an empty string.
|
|
* `bookmark` string (optional) _macOS_ _mas_ - Base64 encoded string which contains the security scoped bookmark data for the saved file. `securityScopedBookmarks` must be enabled for this to be present. (For return values, see [table here](#bookmarks-array).)
|
|
|
|
The `window` argument allows the dialog to attach itself to a parent window, making it modal.
|
|
|
|
The `filters` specifies an array of file types that can be displayed, see
|
|
`dialog.showOpenDialog` for an example.
|
|
|
|
**Note:** On macOS, using the asynchronous version is recommended to avoid issues when
|
|
expanding and collapsing the dialog.
|
|
|
|
### `dialog.showMessageBoxSync([wndow, ]options)`
|
|
|
|
* `window` [BaseWindow](latest/api/base-window.md) (optional)
|
|
* `options` Object
|
|
* `message` string - Content of the message box.
|
|
* `type` string (optional) - Can be `none`, `info`, `error`, `question` or
|
|
`warning`. On Windows, `question` displays the same icon as `info`, unless
|
|
you set an icon using the `icon` option. On macOS, both `warning` and
|
|
`error` display the same warning icon.
|
|
* `buttons` string[] (optional) - Array of texts for buttons. On Windows, an empty array
|
|
will result in one button labeled "OK".
|
|
* `defaultId` Integer (optional) - Index of the button in the buttons array which will
|
|
be selected by default when the message box opens.
|
|
* `title` string (optional) - Title of the message box, some platforms will not show it.
|
|
* `detail` string (optional) - Extra information of the message.
|
|
* `icon` ([NativeImage](latest/api/native-image.md) | string) (optional)
|
|
* `textWidth` Integer (optional) _macOS_ - Custom width of the text in the message box.
|
|
* `cancelId` Integer (optional) - The index of the button to be used to cancel the dialog, via
|
|
the `Esc` key. By default this is assigned to the first button with "cancel" or "no" as the
|
|
label. If no such labeled buttons exist and this option is not set, `0` will be used as the
|
|
return value.
|
|
* `noLink` boolean (optional) - On Windows Electron will try to figure out which one of
|
|
the `buttons` are common buttons (like "Cancel" or "Yes"), and show the
|
|
others as command links in the dialog. This can make the dialog appear in
|
|
the style of modern Windows apps. If you don't like this behavior, you can
|
|
set `noLink` to `true`.
|
|
* `normalizeAccessKeys` boolean (optional) - Normalize the keyboard access keys
|
|
across platforms. Default is `false`. Enabling this assumes `&` is used in
|
|
the button labels for the placement of the keyboard shortcut access key
|
|
and labels will be converted so they work correctly on each platform, `&`
|
|
characters are removed on macOS, converted to `_` on Linux, and left
|
|
untouched on Windows. For example, a button label of `Vie&w` will be
|
|
converted to `Vie_w` on Linux and `View` on macOS and can be selected
|
|
via `Alt-W` on Windows and Linux.
|
|
|
|
Returns `Integer` - the index of the clicked button.
|
|
|
|
Shows a message box, it will block the process until the message box is closed.
|
|
It returns the index of the clicked button.
|
|
|
|
The `window` argument allows the dialog to attach itself to a parent window, making it modal.
|
|
If `window` is not shown dialog will not be attached to it. In such case it will be displayed as an independent window.
|
|
|
|
### `dialog.showMessageBox([window, ]options)`
|
|
|
|
* `window` [BaseWindow](latest/api/base-window.md) (optional)
|
|
* `options` Object
|
|
* `message` string - Content of the message box.
|
|
* `type` string (optional) - Can be `none`, `info`, `error`, `question` or
|
|
`warning`. On Windows, `question` displays the same icon as `info`, unless
|
|
you set an icon using the `icon` option. On macOS, both `warning` and
|
|
`error` display the same warning icon.
|
|
* `buttons` string[] (optional) - Array of texts for buttons. On Windows, an empty array
|
|
will result in one button labeled "OK".
|
|
* `defaultId` Integer (optional) - Index of the button in the buttons array which will
|
|
be selected by default when the message box opens.
|
|
* `signal` AbortSignal (optional) - Pass an instance of [AbortSignal][] to
|
|
optionally close the message box, the message box will behave as if it was
|
|
cancelled by the user. On macOS, `signal` does not work with message boxes
|
|
that do not have a parent window, since those message boxes run
|
|
synchronously due to platform limitations.
|
|
* `title` string (optional) - Title of the message box, some platforms will not show it.
|
|
* `detail` string (optional) - Extra information of the message.
|
|
* `checkboxLabel` string (optional) - If provided, the message box will
|
|
include a checkbox with the given label.
|
|
* `checkboxChecked` boolean (optional) - Initial checked state of the
|
|
checkbox. `false` by default.
|
|
* `icon` ([NativeImage](latest/api/native-image.md) | string) (optional)
|
|
* `textWidth` Integer (optional) _macOS_ - Custom width of the text in the message box.
|
|
* `cancelId` Integer (optional) - The index of the button to be used to cancel the dialog, via
|
|
the `Esc` key. By default this is assigned to the first button with "cancel" or "no" as the
|
|
label. If no such labeled buttons exist and this option is not set, `0` will be used as the
|
|
return value.
|
|
* `noLink` boolean (optional) - On Windows Electron will try to figure out which one of
|
|
the `buttons` are common buttons (like "Cancel" or "Yes"), and show the
|
|
others as command links in the dialog. This can make the dialog appear in
|
|
the style of modern Windows apps. If you don't like this behavior, you can
|
|
set `noLink` to `true`.
|
|
* `normalizeAccessKeys` boolean (optional) - Normalize the keyboard access keys
|
|
across platforms. Default is `false`. Enabling this assumes `&` is used in
|
|
the button labels for the placement of the keyboard shortcut access key
|
|
and labels will be converted so they work correctly on each platform, `&`
|
|
characters are removed on macOS, converted to `_` on Linux, and left
|
|
untouched on Windows. For example, a button label of `Vie&w` will be
|
|
converted to `Vie_w` on Linux and `View` on macOS and can be selected
|
|
via `Alt-W` on Windows and Linux.
|
|
|
|
Returns `Promise<Object>` - resolves with a promise containing the following properties:
|
|
|
|
* `response` number - The index of the clicked button.
|
|
* `checkboxChecked` boolean - The checked state of the checkbox if
|
|
`checkboxLabel` was set. Otherwise `false`.
|
|
|
|
Shows a message box.
|
|
|
|
The `window` argument allows the dialog to attach itself to a parent window, making it modal.
|
|
|
|
### `dialog.showErrorBox(title, content)`
|
|
|
|
* `title` string - The title to display in the error box.
|
|
* `content` string - The text content to display in the error box.
|
|
|
|
Displays a modal dialog that shows an error message.
|
|
|
|
This API can be called safely before the `ready` event the `app` module emits,
|
|
it is usually used to report errors in early stage of startup. If called
|
|
before the app `ready`event on Linux, the message will be emitted to stderr,
|
|
and no GUI dialog will appear.
|
|
|
|
### `dialog.showCertificateTrustDialog([window, ]options)` _macOS_ _Windows_
|
|
|
|
* `window` [BaseWindow](latest/api/base-window.md) (optional)
|
|
* `options` Object
|
|
* `certificate` [Certificate](latest/api/structures/certificate.md) - The certificate to trust/import.
|
|
* `message` string - The message to display to the user.
|
|
|
|
Returns `Promise<void>` - resolves when the certificate trust dialog is shown.
|
|
|
|
On macOS, this displays a modal dialog that shows a message and certificate
|
|
information, and gives the user the option of trusting/importing the
|
|
certificate. If you provide a `window` argument the dialog will be
|
|
attached to the parent window, making it modal.
|
|
|
|
On Windows the options are more limited, due to the Win32 APIs used:
|
|
|
|
* The `message` argument is not used, as the OS provides its own confirmation
|
|
dialog.
|
|
* The `window` argument is ignored since it is not possible to make
|
|
this confirmation dialog modal.
|
|
|
|
## Bookmarks array
|
|
|
|
`showOpenDialog`, `showOpenDialogSync`, `showSaveDialog`, and `showSaveDialogSync` will return a `bookmarks` array.
|
|
|
|
| Build Type | securityScopedBookmarks boolean | Return Type | Return Value |
|
|
|------------|---------------------------------|:-----------:|--------------------------------|
|
|
| macOS mas | True | Success | `['LONGBOOKMARKSTRING']` |
|
|
| macOS mas | True | Error | `['']` (array of empty string) |
|
|
| macOS mas | False | NA | `[]` (empty array) |
|
|
| non mas | any | NA | `[]` (empty array) |
|
|
|
|
## Sheets
|
|
|
|
On macOS, dialogs are presented as sheets attached to a window if you provide
|
|
a [`BaseWindow`](latest/api/base-window.md) reference in the `window` parameter, or modals if no
|
|
window is provided.
|
|
|
|
You can call `BaseWindow.getCurrentWindow().setSheetOffset(offset)` to change
|
|
the offset from the window frame where sheets are attached.
|
|
|
|
[AbortSignal]: https://nodejs.org/api/globals.html#globals_class_abortsignal
|