BaseWindow

Create and control windows.

Process: Main

Note BaseWindow provides a flexible way to compose multiple web views in a single window. For windows with only a single, full-size web view, the BrowserWindow class may be a simpler option.

This module cannot be used until the ready event of the app module is emitted.

// In the main process.
const { BaseWindow, WebContentsView } = require('electron')

const win = new BaseWindow({ width: 800, height: 600 })

const leftView = new WebContentsView()
leftView.webContents.loadURL('https://electronjs.org')
win.contentView.addChildView(leftView)

const rightView = new WebContentsView()
rightView.webContents.loadURL('https://github.com/electron/electron')
win.contentView.addChildView(rightView)

leftView.setBounds({ x: 0, y: 0, width: 400, height: 600 })
rightView.setBounds({ x: 400, y: 0, width: 400, height: 600 })

Родительские и дочерние окна

By using parent option, you can create child windows:

const { BaseWindow } = require('electron')

const parent = new BaseWindow()
const child = new BaseWindow({ parent })

The child window will always show on top of the parent window.

Модальные окна

A modal window is a child window that disables parent window. To create a modal window, you have to set both the parent and modal options:

const { BaseWindow } = require('electron')

const parent = new BaseWindow()
const child = new BaseWindow({ parent, modal: true })

Платформа заметок

• На macOS модальные окна будут отображены в виде страниц, прикрепленных к родительскому окну.
• On macOS the child windows will keep the relative position to parent window when parent window moves, while on Windows and Linux child windows will not move.
• On Linux the type of modal windows will be changed to dialog.
• На Linux многие среды рабочего стола не поддерживают скрытие модального окна.

Class: BaseWindow

Create and control windows.

Process: Main

BaseWindow is an EventEmitter.

It creates a new BaseWindow with native properties as set by the options.

new BaseWindow([options])

• options BaseWindowConstructorOptions (optional)
  • width Integer (optional) - Window's width in pixels. Default is 800.
  • height Integer (optional) - Window's height in pixels. Default is 600.
  • x Integer (optional) - (required if y is used) Window's left offset from screen. Значение по умолчанию центрирует окно.
  • y Integer (optional) - (required if x is used) Window's top offset from screen. Значение по умолчанию центрирует окно.
  • useContentSize boolean (optional) - The width and height would be used as web page's size, which means the actual window's size will include window frame's size and be slightly larger. Default is false.
  • center boolean (optional) - Show window in the center of the screen. Default is false.
  • minWidth Integer (optional) - Window's minimum width. Default is 0.
  • minHeight Integer (optional) - Window's minimum height. Default is 0.
  • maxWidth Integer (optional) - Window's maximum width. По умолчанию нет ограничения.
  • maxHeight Integer (optional) - Window's maximum height. По умолчанию нет ограничения.
  • resizable boolean (optional) - Whether window is resizable. Default is true.
  • movable boolean (optional) macOS Windows - Whether window is movable. Не реализовано в Linux. Default is true.
  • minimizable boolean (optional) macOS Windows - Whether window is minimizable. Не реализовано в Linux. Default is true.
  • maximizable boolean (optional) macOS Windows - Whether window is maximizable. Не реализовано в Linux. Default is true.
  • closable boolean (optional) macOS Windows - Whether window is closable. Не реализовано в Linux. Default is true.
  • focusable boolean (optional) - Whether the window can be focused. Default is true. On Windows setting focusable: false also implies setting skipTaskbar: true. On Linux setting focusable: false makes the window stop interacting with wm, so the window will always stay on top in all workspaces.
  • alwaysOnTop boolean (optional) - Whether the window should always stay on top of other windows. Default is false.
  • fullscreen boolean (optional) - Whether the window should show in fullscreen. When explicitly set to false the fullscreen button will be hidden or disabled on macOS. Default is false.
  • fullscreenable boolean (optional) - Whether the window can be put into fullscreen mode. On macOS, also whether the maximize/zoom button should toggle full screen mode or maximize window. Default is true.
  • simpleFullscreen boolean (optional) macOS - Use pre-Lion fullscreen on macOS. Default is false.
  • skipTaskbar boolean (optional) macOS Windows - Whether to show the window in taskbar. Default is false.
  • hiddenInMissionControl boolean (optional) macOS - Whether window should be hidden when the user toggles into mission control.
  • kiosk boolean (optional) - Whether the window is in kiosk mode. Default is false.
  • title string (optional) - Default window title. Default is "Electron". If the HTML tag <title> is defined in the HTML file loaded by loadURL(), this property will be ignored.
  • icon (NativeImage | string) (optional) - The window icon. On Windows it is recommended to use ICO icons to get best visual effects, you can also leave it undefined so the executable's icon will be used.
  • show boolean (optional) - Whether window should be shown when created. Default is true.
  • frame boolean (optional) - Specify false to create a frameless window. Default is true.
  • parent BaseWindow (optional) - Specify parent window. Default is null.
  • modal boolean (optional) - Whether this is a modal window. This only works when the window is a child window. Default is false.
  • acceptFirstMouse boolean (optional) macOS - Whether clicking an inactive window will also click through to the web contents. Default is false on macOS. This option is not configurable on other platforms.
  • disableAutoHideCursor boolean (optional) - Whether to hide cursor when typing. Default is false.
  • autoHideMenuBar boolean (optional) - Auto hide the menu bar unless the Alt key is pressed. Default is false.
  • enableLargerThanScreen boolean (optional) macOS - Enable the window to be resized larger than screen. Only relevant for macOS, as other OSes allow larger-than-screen windows by default. Default is false.
  • backgroundColor string (optional) - The window's background color in Hex, RGB, RGBA, HSL, HSLA or named CSS color format. Alpha in #AARRGGBB format is supported if transparent is set to true. Default is #FFF (white). See win.setBackgroundColor for more information.
  • hasShadow boolean (optional) - Whether window should have a shadow. Default is true.
  • opacity number (optional) macOS Windows - Set the initial opacity of the window, between 0.0 (fully transparent) and 1.0 (fully opaque). This is only implemented on Windows and macOS.
  • darkTheme boolean (optional) - Forces using dark theme for the window, only works on some GTK+3 desktop environments. Default is false.
  • transparent boolean (optional) - Makes the window transparent. Default is false. В Windows не работает до тех пор, пока окно не будет без фрейма.
  • type string (optional) - The type of window, default is normal window. See more about this below.
  • visualEffectState string (optional) macOS - Specify how the material appearance should reflect window activity state on macOS. Must be used with the vibrancy property. Возможные значения:
    • followWindow - The backdrop should automatically appear active when the window is active, and inactive when it is not. This is the default.
    • active - The backdrop should always appear active.
    • inactive - The backdrop should always appear inactive.
  • titleBarStyle string (optional) macOS Windows - The style of window title bar. Default is default. Возможные значения:
    • default - Results in the standard title bar for macOS or Windows respectively.
    • hidden - Results in a hidden title bar and a full size content window. На macOS в левом верхнем углу окна все еще есть стандартное управление окном ("светофоры"). On Windows, when combined with titleBarOverlay: true it will activate the Window Controls Overlay (see titleBarOverlay for more information), otherwise no window controls will be shown.
    • hiddenInset macOS - Only on macOS, results in a hidden title bar with an alternative look where the traffic light buttons are slightly more inset from the window edge.
    • customButtonsOnHover macOS - Only on macOS, results in a hidden title bar and a full size content window, the traffic light buttons will display when being hovered over in the top left of the window. Note: This option is currently experimental.
  • trafficLightPosition Point (optional) macOS - Set a custom position for the traffic light buttons in frameless windows.
  • roundedCorners boolean (optional) macOS - Whether frameless window should have rounded corners on macOS. Default is true. Setting this property to false will prevent the window from being fullscreenable.
  • thickFrame boolean (optional) - Use WS_THICKFRAME style for frameless windows on Windows, which adds standard window frame. Setting it to false will remove window shadow and window animations. Default is true.
  • vibrancy string (optional) macOS - Add a type of vibrancy effect to the window, only on macOS. Can be appearance-based, titlebar, selection, menu, popover, sidebar, header, sheet, window, hud, fullscreen-ui, tooltip, content, under-window, or under-page.
  • backgroundMaterial string (optional) Windows - Set the window's system-drawn background material, including behind the non-client area. Can be auto, none, mica, acrylic or tabbed. See win.setBackgroundMaterial for more information.
  • zoomToPageWidth boolean (optional) macOS - Controls the behavior on macOS when option-clicking the green stoplight button on the toolbar or by clicking the Window > Zoom menu item. If true, the window will grow to the preferred width of the web page when zoomed, false will cause it to zoom to the width of the screen. This will also affect the behavior when calling maximize() directly. Default is false.
  • tabbingIdentifier string (optional) macOS - Tab group name, allows opening the window as a native tab. Windows with the same tabbing identifier will be grouped together. This also adds a native new tab button to your window's tab bar and allows your app and window to receive the new-window-for-tab event.

When setting minimum or maximum window size with minWidth/maxWidth/ minHeight/maxHeight, it only constrains the users. It won't prevent you from passing a size that does not follow size constraints to setBounds/setSize or to the constructor of BrowserWindow.

The possible values and behaviors of the type option are platform dependent. Возможные значения:

• On Linux, possible types are desktop, dock, toolbar, splash, notification.
  • The desktop type places the window at the desktop background window level (kCGDesktopWindowLevel - 1). However, note that a desktop window will not receive focus, keyboard, or mouse events. You can still use globalShortcut to receive input sparingly.
  • The dock type creates a dock-like window behavior.
  • The toolbar type creates a window with a toolbar appearance.
  • The splash type behaves in a specific way. It is not draggable, even if the CSS styling of the window's body contains -webkit-app-region: drag. This type is commonly used for splash screens.
  • The notification type creates a window that behaves like a system notification.
• On macOS, possible types are desktop, textured, panel.
  • The textured type adds metal gradient appearance (NSWindowStyleMaskTexturedBackground).
  • The desktop type places the window at the desktop background window level (kCGDesktopWindowLevel - 1). Note that desktop window will not receive focus, keyboard or mouse events, but you can use globalShortcut to receive input sparingly.
  • The panel type enables the window to float on top of full-screened apps by adding the NSWindowStyleMaskNonactivatingPanel style mask,normally reserved for NSPanel, at runtime. Also, the window will appear on all spaces (desktops).
• On Windows, possible type is toolbar.

События экземпляра

Objects created with new BaseWindow emit the following events:

Note: Some events are only available on specific operating systems and are labeled as such.

Событие: 'close'

Возвращает:

• event Event

Происходит при закрытии окна. It's emitted before the beforeunload and unload event of the DOM. Calling event.preventDefault() will cancel the close.

Usually you would want to use the beforeunload handler to decide whether the window should be closed, which will also be called when the window is reloaded. In Electron, returning any value other than undefined would cancel the close. Например:

window.onbeforeunload = (e) => {
  console.log('I do not want to be closed')

  // Unlike usual browsers that a message box will be prompted to users, returning
  // a non-void value will silently cancel the close.
  // It is recommended to use the dialog API to let the user confirm closing the
  // application.
  e.returnValue = false
}

Note: There is a subtle difference between the behaviors of window.onbeforeunload = handler and window.addEventListener('beforeunload', handler). It is recommended to always set the event.returnValue explicitly, instead of only returning a value, as the former works more consistently within Electron.

Событие: 'closed'

происходит когда окно приложения закрыто. After you have received this event you should remove the reference to the window and avoid using it any more.

Event: 'session-end' Windows

Происходит, когда сеанс окна заканчивается из-за выключения, перезагрузки компьютера или отключения сеанса.

Событие: 'blur'

Происходит, когда окно теряет фокус.

Событие: 'focus'

Происходит, когда на окне фокусируются.

Событие: 'show'

Происходит, когда отображается окно.

Событие: 'hide'

Происходит, когда окно спрятано.

Событие: 'maximize'

Происходит, когда окно увеличивается до предела.

Событие: 'unmaximize'

Происходит, когда окно выходит из увеличенного состояния.

Событие: 'minimize'

Происходит, когда окно было свернуто.

Событие: 'restore'

Происходит, когда окно восстанавливается из свернутого состояния.

Event: 'will-resize' macOS Windows

Возвращает:

• event Event
• newBounds Rectangle - Size the window is being resized to.
• details Object
  • edge (string) - The edge of the window being dragged for resizing. Can be bottom, left, right, top-left, top-right, bottom-left or bottom-right.

Emitted before the window is resized. Calling event.preventDefault() will prevent the window from being resized.

Note that this is only emitted when the window is being resized manually. Resizing the window with setBounds/setSize will not emit this event.

The possible values and behaviors of the edge option are platform dependent. Возможные значения:

• On Windows, possible values are bottom, top, left, right, top-left, top-right, bottom-left, bottom-right.
• On macOS, possible values are bottom and right.
  • The value bottom is used to denote vertical resizing.
  • The value right is used to denote horizontal resizing.

Событие: 'resize'

Происходит после того, как изменился размер окна.

Event: 'resized' macOS Windows

Emitted once when the window has finished being resized.

This is usually emitted when the window has been resized manually. On macOS, resizing the window with setBounds/setSize and setting the animate parameter to true will also emit this event once resizing has finished.

Event: 'will-move' macOS Windows

Возвращает:

• event Event
• newBounds Rectangle - Location the window is being moved to.

Emitted before the window is moved. On Windows, calling event.preventDefault() will prevent the window from being moved.

Note that this is only emitted when the window is being moved manually. Moving the window with setPosition/setBounds/center will not emit this event.

Событие: 'move'

Происходит, когда окно перемещено на новое место.

Event: 'moved' macOS Windows

Происходит единожды, когда окно перемещается в новое положение.

Note: On macOS this event is an alias of move.

Событие: 'enter-full-screen'

Происходит, когда окно переходит в полноэкранный режим.

Событие: 'leave-full-screen'

Происходит, когда окно выходит из полноэкранного режима.

Событие: 'always-on-top-changed'

Возвращает:

• event Event
• isAlwaysOnTop boolean

Происходит, когда окно переключает режим отображения поверх всех окон.

Event: 'app-command' Windows Linux

Возвращает:

• event Event
• command string

Emitted when an App Command is invoked. Обычно это касается клавиатурных медиа-клавиш или команд браузера, а также кнопки "Назад", встроенной в некоторые мыши на Windows.

Commands are lowercased, underscores are replaced with hyphens, and the APPCOMMAND_ prefix is stripped off. e.g. APPCOMMAND_BROWSER_BACKWARD is emitted as browser-backward.

const { BaseWindow } = require('electron')
const win = new BaseWindow()
win.on('app-command', (e, cmd) => {
  // Navigate the window back when the user hits their mouse back button
  if (cmd === 'browser-backward') {
    // Find the appropriate WebContents to navigate.
  }
})

Следующие команды приложения явно поддерживаются на Linux:

• browser-backward
• browser-forward

Event: 'swipe' macOS

Возвращает:

• event Event
• direction string

Emitted on 3-finger swipe. Possible directions are up, right, down, left.

Метод, лежащий в основе этого события, создан для обработки событий смахивания на устаревших трекпадах в стиле macOS, где содержимое на экране нельзя переместить смахнув. Most macOS trackpads are not configured to allow this kind of swiping anymore, so in order for it to emit properly the 'Swipe between pages' preference in System Preferences > Trackpad > More Gestures must be set to 'Swipe with two or three fingers'.

Event: 'rotate-gesture' macOS

Возвращает:

• event Event
• rotation Float

Генерируется жестом вращения трекпада. Непрерывно генерируется до тех пор, пока жест поворота не будет завершен. The rotation value on each emission is the angle in degrees rotated since the last emission. The last emitted event upon a rotation gesture will always be of value 0. Значения вращения против часовой стрелки положительные, по часовой стрелке отрицательные.

Event: 'sheet-begin' macOS

Происходит, когда окно открывает лист.

Event: 'sheet-end' macOS

Происходит, когда окно закрыло лист.

Event: 'new-window-for-tab' macOS

Происходит, когда нажимается нативная кнопка новой вкладки.

Event: 'system-context-menu' Windows

Возвращает:

• event Event
• point Point - The screen coordinates the context menu was triggered at

Emitted when the system context menu is triggered on the window, this is normally only triggered when the user right clicks on the non-client area of your window. This is the window titlebar or any area you have declared as -webkit-app-region: drag in a frameless window.

Calling event.preventDefault() will prevent the menu from being displayed.

Статические методы

The BaseWindow class has the following static methods:

BaseWindow.getAllWindows()

Returns BaseWindow[] - An array of all opened browser windows.

BaseWindow.getFocusedWindow()

Returns BaseWindow | null - The window that is focused in this application, otherwise returns null.

BaseWindow.fromId(id)

• id Integer

Returns BaseWindow | null - The window with the given id.

Свойства экземпляра

Objects created with new BaseWindow have the following properties:

const { BaseWindow } = require('electron')
// In this example `win` is our instance
const win = new BaseWindow({ width: 800, height: 600 })

win.id Readonly

A Integer property representing the unique ID of the window. Each ID is unique among all BaseWindow instances of the entire Electron application.

win.contentView

A View property for the content view of the window.

win.tabbingIdentifier macOS Readonly

A string (optional) property that is equal to the tabbingIdentifier passed to the BrowserWindow constructor or undefined if none was set.

win.autoHideMenuBar

A boolean property that determines whether the window menu bar should hide itself automatically. Once set, the menu bar will only show when users press the single Alt key.

If the menu bar is already visible, setting this property to true won't hide it immediately.

win.simpleFullScreen

A boolean property that determines whether the window is in simple (pre-Lion) fullscreen mode.

win.fullScreen

A boolean property that determines whether the window is in fullscreen mode.

win.focusable Windows macOS

A boolean property that determines whether the window is focusable.

win.visibleOnAllWorkspaces macOS Linux

A boolean property that determines whether the window is visible on all workspaces.

Note: Always returns false on Windows.

win.shadow

A boolean property that determines whether the window has a shadow.

win.menuBarVisible Windows Linux

A boolean property that determines whether the menu bar should be visible.

Note: If the menu bar is auto-hide, users can still bring up the menu bar by pressing the single Alt key.

win.kiosk

A boolean property that determines whether the window is in kiosk mode.

win.documentEdited macOS

A boolean property that specifies whether the window’s document has been edited.

The icon in title bar will become gray when set to true.

win.representedFilename macOS

A string property that determines the pathname of the file the window represents, and the icon of the file will show in window's title bar.

win.title

A string property that determines the title of the native window.

Note: The title of the web page can be different from the title of the native window.

win.minimizable macOS Windows

A boolean property that determines whether the window can be manually minimized by user.

On Linux the setter is a no-op, although the getter returns true.

win.maximizable macOS Windows

A boolean property that determines whether the window can be manually maximized by user.

On Linux the setter is a no-op, although the getter returns true.

win.fullScreenable

A boolean property that determines whether the maximize/zoom window button toggles fullscreen mode or maximizes the window.

win.resizable

A boolean property that determines whether the window can be manually resized by user.

win.closable macOS Windows

A boolean property that determines whether the window can be manually closed by user.

On Linux the setter is a no-op, although the getter returns true.

win.movable macOS Windows

A boolean property that determines Whether the window can be moved by user.

On Linux the setter is a no-op, although the getter returns true.

win.excludedFromShownWindowsMenu macOS

A boolean property that determines whether the window is excluded from the application’s Windows menu. false by default.

const { Menu, BaseWindow } = require('electron')
const win = new BaseWindow({ height: 600, width: 600 })

const template = [
  {
    role: 'windowmenu'
  }
]

win.excludedFromShownWindowsMenu = true

const menu = Menu.buildFromTemplate(template)
Menu.setApplicationMenu(menu)

win.accessibleTitle

A string property that defines an alternative title provided only to accessibility tools such as screen readers. This string is not directly visible to users.

Методы экземпляра

Objects created with new BaseWindow have the following instance methods:

Note: Some methods are only available on specific operating systems and are labeled as such.

win.setContentView(view)

• view View

Sets the content view of the window.

win.getContentView()

Returns View - The content view of the window.

win.destroy()

Force closing the window, the unload and beforeunload event won't be emitted for the web page, and close event will also not be emitted for this window, but it guarantees the closed event will be emitted.

win.close()

Try to close the window. This has the same effect as a user manually clicking the close button of the window. The web page may cancel the close though. See the close event.

win.focus()

Фокусирует окно.

win.blur()

Убирает фокус с окна.

win.isFocused()

Returns boolean - Whether the window is focused.

win.isDestroyed()

Returns boolean - Whether the window is destroyed.

win.show()

Показывает и фокусирует окно.

win.showInactive()

Показывает окно, но не фокусирует его.

win.hide()

Скрывает окно.

win.isVisible()

Returns boolean - Whether the window is visible to the user in the foreground of the app.

win.isModal()

Returns boolean - Whether current window is a modal window.

win.maximize()

Maximizes the window. This will also show (but not focus) the window if it isn't being displayed already.

win.unmaximize()

Выходит из увеличенного состояния окна.

win.isMaximized()

Returns boolean - Whether the window is maximized.

win.minimize()

Minimizes the window. On some platforms the minimized window will be shown in the Dock.

win.restore()

Восстанавливает окно из свернутого состояния до его предыдущего состояния.

win.isMinimized()

Returns boolean - Whether the window is minimized.

win.setFullScreen(flag)

• flag boolean

Устанавливает окно в полноэкранный режим.

Note: On macOS, fullscreen transitions take place asynchronously. If further actions depend on the fullscreen state, use the 'enter-full-screen' or 'leave-full-screen' events.

win.isFullScreen()

Returns boolean - Whether the window is in fullscreen mode.

win.setSimpleFullScreen(flag) macOS

• flag boolean

Входит или покидает простой полноэкранный режим.

Simple fullscreen mode emulates the native fullscreen behavior found in versions of macOS prior to Lion (10.7).

win.isSimpleFullScreen() macOS

Returns boolean - Whether the window is in simple (pre-Lion) fullscreen mode.

win.isNormal()

Returns boolean - Whether the window is in normal state (not maximized, not minimized, not in fullscreen mode).

win.setAspectRatio(aspectRatio[, extraSize])

• aspectRatio Float - The aspect ratio to maintain for some portion of the content view.
• extraSize Size (optional) macOS - The extra size not to be included while maintaining the aspect ratio.

Это заставит окно поддерживать соотношение сторон. Дополнительный размер позволяет разработчику иметь пространство, указанное в пикселях, которое не входит в расчеты соотношения сторон. Этот метод уже учитывает разницу между размером окна и размером его содержимого.

Рассмотрим нормально окно в HD видео-плеером, и связанными с ним контроллерами. Возможно, на левом крае есть 15-ти пиксельный контроллер, 25-ти пиксельный контроллер на правом крае и 50-ти пиксельный контроллер внизу плеера. In order to maintain a 16:9 aspect ratio (standard aspect ratio for HD @1920x1080) within the player itself we would call this function with arguments of 16/9 and { width: 40, height: 50 }. Второй аргумент не заботится о том, где дополнительная ширина и высота находятся внутри содержимого вида, в котором они существуют. Суммируйте любые области дополнительной ширины и высоты, которые у Вас есть, в общем представлении содержимого.

The aspect ratio is not respected when window is resized programmatically with APIs like win.setSize.

To reset an aspect ratio, pass 0 as the aspectRatio value: win.setAspectRatio(0).

win.setBackgroundColor(backgroundColor)

• backgroundColor string - Color in Hex, RGB, RGBA, HSL, HSLA or named CSS color format. The alpha channel is optional for the hex type.

Examples of valid backgroundColor values:

• Hex
  • #fff (shorthand RGB)
  • #ffff (shorthand ARGB)
  • #ffffff (RGB)
  • #ffffffff (ARGB)
• RGB
  • rgb\(([\d]+),\s*([\d]+),\s*([\d]+)\)
    • e.g. rgb(255, 255, 255)
• RGBA
  • rgba\(([\d]+),\s*([\d]+),\s*([\d]+),\s*([\d.]+)\)
    • e.g. rgba(255, 255, 255, 1.0)
• HSL
  • hsl\((-?[\d.]+),\s*([\d.]+)%,\s*([\d.]+)%\)
    • e.g. hsl(200, 20%, 50%)
• HSLA
  • hsla\((-?[\d.]+),\s*([\d.]+)%,\s*([\d.]+)%,\s*([\d.]+)\)
    • e.g. hsla(200, 20%, 50%, 0.5)
• Color name
  • Options are listed in SkParseColor.cpp
  • Similar to CSS Color Module Level 3 keywords, but case-sensitive.
    • e.g. blueviolet or red

Sets the background color of the window. See Setting backgroundColor.

win.previewFile(path[, displayName]) macOS

• path string - The absolute path to the file to preview with QuickLook. This is important as Quick Look uses the file name and file extension on the path to determine the content type of the file to open.
• displayName string (optional) - The name of the file to display on the Quick Look modal view. This is purely visual and does not affect the content type of the file. Defaults to path.

Uses Quick Look to preview a file at a given path.

win.closeFilePreview() macOS

Closes the currently open Quick Look panel.

win.setBounds(bounds[, animate])

• bounds Partial<Rectangle>
• animate boolean (optional) macOS

Resizes and moves the window to the supplied bounds. Any properties that are not supplied will default to their current values.

const { BaseWindow } = require('electron')
const win = new BaseWindow()

// set all bounds properties
win.setBounds({ x: 440, y: 225, width: 800, height: 600 })

// set a single bounds property
win.setBounds({ width: 100 })

// { x: 440, y: 225, width: 100, height: 600 }
console.log(win.getBounds())

Note: On macOS, the y-coordinate value cannot be smaller than the Tray height. The tray height has changed over time and depends on the operating system, but is between 20-40px. Passing a value lower than the tray height will result in a window that is flush to the tray.

win.getBounds()

Returns Rectangle - The bounds of the window as Object.

Note: On macOS, the y-coordinate value returned will be at minimum the Tray height. For example, calling win.setBounds({ x: 25, y: 20, width: 800, height: 600 }) with a tray height of 38 means that win.getBounds() will return { x: 25, y: 38, width: 800, height: 600 }.

win.getBackgroundColor()

Returns string - Gets the background color of the window in Hex (#RRGGBB) format.

See Setting backgroundColor.

Note: The alpha value is not returned alongside the red, green, and blue values.

win.setContentBounds(bounds[, animate])

• bounds Rectangle
• animate boolean (optional) macOS

Меняет размеры и перемещает клиентскую область окна (например, веб-страницу) на заданные границы.

win.getContentBounds()

Returns Rectangle - The bounds of the window's client area as Object.

win.getNormalBounds()

Returns Rectangle - Contains the window bounds of the normal state

Note: whatever the current state of the window : maximized, minimized or in fullscreen, this function always returns the position and size of the window in normal state. In normal state, getBounds and getNormalBounds returns the same Rectangle.

win.setEnabled(enable)

• enable boolean

Включает или выключает окно.

win.isEnabled()

Returns boolean - whether the window is enabled.

win.setSize(width, height[, animate])

• width Integer
• height Integer
• animate boolean (optional) macOS

Resizes the window to width and height. If width or height are below any set minimum size constraints the window will snap to its minimum size.

win.getSize()

Returns Integer[] - Contains the window's width and height.

win.setContentSize(width, height[, animate])

• width Integer
• height Integer
• animate boolean (optional) macOS

Resizes the window's client area (e.g. the web page) to width and height.

win.getContentSize()

Returns Integer[] - Contains the window's client area's width and height.

win.setMinimumSize(width, height)

• width Integer
• height Integer

Sets the minimum size of window to width and height.

win.getMinimumSize()

Returns Integer[] - Contains the window's minimum width and height.

win.setMaximumSize(width, height)

• width Integer
• height Integer

Sets the maximum size of window to width and height.

win.getMaximumSize()

Returns Integer[] - Contains the window's maximum width and height.

win.setResizable(resizable)

• resizable boolean

Sets whether the window can be manually resized by the user.

win.isResizable()

Returns boolean - Whether the window can be manually resized by the user.

win.setMovable(movable) macOS Windows

• movable boolean

Sets whether the window can be moved by user. On Linux does nothing.

win.isMovable() macOS Windows

Returns boolean - Whether the window can be moved by user.

On Linux always returns true.

win.setMinimizable(minimizable) macOS Windows

• minimizable boolean

Sets whether the window can be manually minimized by user. On Linux does nothing.

win.isMinimizable() macOS Windows

Returns boolean - Whether the window can be manually minimized by the user.

On Linux always returns true.

win.setMaximizable(maximizable) macOS Windows

• maximizable boolean

Sets whether the window can be manually maximized by user. On Linux does nothing.

win.isMaximizable() macOS Windows

Returns boolean - Whether the window can be manually maximized by user.

On Linux always returns true.

win.setFullScreenable(fullscreenable)

• fullscreenable boolean

Sets whether the maximize/zoom window button toggles fullscreen mode or maximizes the window.

win.isFullScreenable()

Returns boolean - Whether the maximize/zoom window button toggles fullscreen mode or maximizes the window.

win.setClosable(closable) macOS Windows

• closable boolean

Sets whether the window can be manually closed by user. On Linux does nothing.

win.isClosable() macOS Windows

Returns boolean - Whether the window can be manually closed by user.

On Linux always returns true.

win.setHiddenInMissionControl(hidden) macOS

• hidden boolean

Sets whether the window will be hidden when the user toggles into mission control.

win.isHiddenInMissionControl() macOS

Returns boolean - Whether the window will be hidden when the user toggles into mission control.

win.setAlwaysOnTop(flag[, level][, relativeLevel])

• flag boolean
• level string (optional) macOS Windows - Values include normal, floating, torn-off-menu, modal-panel, main-menu, status, pop-up-menu, screen-saver, and dock (Deprecated). The default is floating when flag is true. The level is reset to normal when the flag is false. Note that from floating to status included, the window is placed below the Dock on macOS and below the taskbar on Windows. From pop-up-menu to a higher it is shown above the Dock on macOS and above the taskbar on Windows. See the macOS docs for more details.
• relativeLevel Integer (optional) macOS - The number of layers higher to set this window relative to the given level. The default is 0. Note that Apple discourages setting levels higher than 1 above screen-saver.

Sets whether the window should show always on top of other windows. After setting this, the window is still a normal window, not a toolbox window which can not be focused on.

win.isAlwaysOnTop()

Returns boolean - Whether the window is always on top of other windows.

win.moveAbove(mediaSourceId)

• mediaSourceId string - Window id in the format of DesktopCapturerSource's id. For example "window:1869:0".

Moves window above the source window in the sense of z-order. If the mediaSourceId is not of type window or if the window does not exist then this method throws an error.

win.moveTop()

Перемещает окно на верх(z-order) независимо от фокуса

win.center()

Перемещает окно в центр экрана.

win.setPosition(x, y[, animate])

• x Integer
• y Integer
• animate boolean (optional) macOS

Moves window to x and y.

win.getPosition()

Returns Integer[] - Contains the window's current position.

win.setTitle(title)

• title string

Changes the title of native window to title.

win.getTitle()

Returns string - The title of the native window.

Note: The title of the web page can be different from the title of the native window.

win.setSheetOffset(offsetY[, offsetX]) macOS

• offsetY Float
• offsetX Float (optional)

Changes the attachment point for sheets on macOS. By default, sheets are attached just below the window frame, but you may want to display them beneath a HTML-rendered toolbar. Например:

const { BaseWindow } = require('electron')
const win = new BaseWindow()

const toolbarRect = document.getElementById('toolbar').getBoundingClientRect()
win.setSheetOffset(toolbarRect.height)

win.flashFrame(flag)

• flag boolean

Начинает или останавливает мерцание окна, чтобы привлечь внимание пользователя.

win.setSkipTaskbar(skip) macOS Windows

• skip boolean

Не отображает окно в панели задач.

win.setKiosk(flag)

• flag boolean

Enters or leaves kiosk mode.

win.isKiosk()

Returns boolean - Whether the window is in kiosk mode.

win.isTabletMode() Windows

Returns boolean - Whether the window is in Windows 10 tablet mode.

Since Windows 10 users can use their PC as tablet, under this mode apps can choose to optimize their UI for tablets, such as enlarging the titlebar and hiding titlebar buttons.

This API returns whether the window is in tablet mode, and the resize event can be be used to listen to changes to tablet mode.

win.getMediaSourceId()

Returns string - Window id in the format of DesktopCapturerSource's id. For example "window:1324:0".

More precisely the format is window:id:other_id where id is HWND on Windows, CGWindowID (uint64_t) on macOS and Window (unsigned long) on Linux. other_id is used to identify web contents (tabs) so within the same top level window.

win.getNativeWindowHandle()

Returns Buffer - The platform-specific handle of the window.

The native type of the handle is HWND on Windows, NSView* on macOS, and Window (unsigned long) on Linux.

win.hookWindowMessage(message, callback) Windows

• message Integer
• callback Function
  • wParam Buffer - The wParam provided to the WndProc
  • lParam Buffer - The lParam provided to the WndProc

Hooks a windows message. The callback is called when the message is received in the WndProc.

win.isWindowMessageHooked(message) Windows

• message Integer

Returns boolean - true or false depending on whether the message is hooked.

win.unhookWindowMessage(message) Windows

• message Integer

Пропускает сообщение окна.

win.unhookAllWindowMessages() Windows

Пропускает все сообщения окна.

win.setRepresentedFilename(filename) macOS

• filename string

Устанавливает путь к файлу, который представляет окно, и иконки файла, которая будет отображаться в строке заголовка окна.

win.getRepresentedFilename() macOS

Returns string - The pathname of the file the window represents.

win.setDocumentEdited(edited) macOS

• edited boolean

Specifies whether the window’s document has been edited, and the icon in title bar will become gray when set to true.

win.isDocumentEdited() macOS

Returns boolean - Whether the window's document has been edited.

win.setMenu(menu) Linux Windows

• menu Menu | null

Sets the menu as the window's menu bar.

win.removeMenu() Linux Windows

Удаляет меню окна.

win.setProgressBar(progress[, options])

• progress Double
• options Object (optional)
  • mode string Windows - Mode for the progress bar. Can be none, normal, indeterminate, error or paused.

Устанавливает значение прогресса на шкале прогресса. Valid range is [0, 1.0].

Удаляет индикатор прогресса, когда прогресс меньше 0; Изменяет в режим indeterminate, когда прогресс больше 1.

On Linux platform, only supports Unity desktop environment, you need to specify the *.desktop file name to desktopName field in package.json. By default, it will assume {app.name}.desktop.

На Windows режим может быть передан. Accepted values are none, normal, indeterminate, error, and paused. If you call setProgressBar without a mode set (but with a value within the valid range), normal will be assumed.

win.setOverlayIcon(overlay, description) Windows

• overlay NativeImage | null - the icon to display on the bottom right corner of the taskbar icon. If this parameter is null, the overlay is cleared
• description string - a description that will be provided to Accessibility screen readers

Устанавливает 16x16 пиксельный оверлей поверх текущей иконки в панели задач, обычно используется для передачи какого-либо статуса приложения или пассивного уведомления пользователя.

win.invalidateShadow() macOS

Invalidates the window shadow so that it is recomputed based on the current window shape.

BaseWindows that are transparent can sometimes leave behind visual artifacts on macOS. This method can be used to clear these artifacts when, for example, performing an animation.

win.setHasShadow(hasShadow)

• hasShadow boolean

Устанавливает, будет ли окно иметь тень.

win.hasShadow()

Returns boolean - Whether the window has a shadow.

win.setOpacity(opacity) Windows macOS

• opacity number - between 0.0 (fully transparent) and 1.0 (fully opaque)

Sets the opacity of the window. On Linux, does nothing. Out of bound number values are clamped to the [0, 1] range.

win.getOpacity()

Returns number - between 0.0 (fully transparent) and 1.0 (fully opaque). On Linux, always returns 1.

win.setShape(rects) Windows Linux Experimental

• rects Rectangle[] - Sets a shape on the window. Passing an empty list reverts the window to being rectangular.

Установка формы окна, которая определяет область в окне, где система разрешает отрисовку и взаимодействие пользователя. Вне данного региона ни один пиксель не отрисуется и ни одно событие мыши не будет зарегистрировано. Вне региона события мыши не будут получены этим окном, но будет передаваться чему-либо позади окна.

win.setThumbarButtons(buttons) Windows

• buttons ThumbarButton[]

Returns boolean - Whether the buttons were added successfully

Добавляет панель миниатюр, с определенным набором кнопок, на слой кнопок в изображении эскиза окна в панели задач. Returns a boolean object indicates whether the thumbnail has been added successfully.

Количество кнопок в панели миниатюр не должно быть больше, чем 7, из-за ограничений. После установки панели миниатюр, панель не может быть удалена, из-за ограничений платформы. Но Вы можете вызвать метод с пустым массивом, чтобы убрать кнопки.

The buttons is an array of Button objects:

• Button Object
  • icon NativeImage - The icon showing in thumbnail toolbar.
  • click Function
  • tooltip string (optional) - The text of the button's tooltip.
  • flags string[] (optional) - Control specific states and behaviors of the button. By default, it is ['enabled'].

The flags is an array that can include following strings:

• enabled - The button is active and available to the user.
• disabled - The button is disabled. It is present, but has a visual state indicating it will not respond to user action.
• dismissonclick - When the button is clicked, the thumbnail window closes immediately.
• nobackground - Do not draw a button border, use only the image.
• hidden - The button is not shown to the user.
• noninteractive - The button is enabled but not interactive; no pressed button state is drawn. This value is intended for instances where the button is used in a notification.

win.setThumbnailClip(region) Windows

• region Rectangle - Region of the window

Устанавливает область окна, которая будет показана в панели миниатюр, при наведении мыши на окно в панели задач. You can reset the thumbnail to be the entire window by specifying an empty region: { x: 0, y: 0, width: 0, height: 0 }.

win.setThumbnailToolTip(toolTip) Windows

• toolTip string

Устанавливает всплывающую подсказку, которая будет отображена, при наведении мыши на панель миниатюры окна в панели задач.

win.setAppDetails(options) Windows

• options Object
  • appId string (optional) - Window's App User Model ID. Это должно быть установлено, иначе остальные параметры не будут иметь никакого эффекта.
  • appIconPath string (optional) - Window's Relaunch Icon.
  • appIconIndex Integer (optional) - Index of the icon in appIconPath. Ignored when appIconPath is not set. Default is 0.
  • relaunchCommand string (optional) - Window's Relaunch Command.
  • relaunchDisplayName string (optional) - Window's Relaunch Display Name.

Устанавливает свойства для кнопки окна на панели задач.

Note: relaunchCommand and relaunchDisplayName must always be set together. If one of those properties is not set, then neither will be used.

win.setIcon(icon) Windows Linux

• icon NativeImage | string

Меняет иконку окна.

win.setWindowButtonVisibility(visible) macOS

• visible boolean

Устанавливает, должны ли быть видны кнопки контроля окна.

win.setAutoHideMenuBar(hide) Windows Linux

• hide boolean

Sets whether the window menu bar should hide itself automatically. Once set the menu bar will only show when users press the single Alt key.

If the menu bar is already visible, calling setAutoHideMenuBar(true) won't hide it immediately.

win.isMenuBarAutoHide() Windows Linux

Returns boolean - Whether menu bar automatically hides itself.

win.setMenuBarVisibility(visible) Windows Linux

• visible boolean

Sets whether the menu bar should be visible. If the menu bar is auto-hide, users can still bring up the menu bar by pressing the single Alt key.

win.isMenuBarVisible() Windows Linux

Returns boolean - Whether the menu bar is visible.

win.setVisibleOnAllWorkspaces(visible[, options]) macOS Linux

• visible boolean
• options Object (optional)
  • visibleOnFullScreen boolean (optional) macOS - Sets whether the window should be visible above fullscreen windows.
  • skipTransformProcessType boolean (optional) macOS - Calling setVisibleOnAllWorkspaces will by default transform the process type between UIElementApplication and ForegroundApplication to ensure the correct behavior. However, this will hide the window and dock for a short time every time it is called. If your window is already of type UIElementApplication, you can bypass this transformation by passing true to skipTransformProcessType.

Устанавливает видимость окна на всех рабочих местах.

Note: This API does nothing on Windows.

win.isVisibleOnAllWorkspaces() macOS Linux

Returns boolean - Whether the window is visible on all workspaces.

Note: This API always returns false on Windows.

win.setIgnoreMouseEvents(ignore[, options])

• ignore boolean
• options Object (optional)
  • forward boolean (optional) macOS Windows - If true, forwards mouse move messages to Chromium, enabling mouse related events such as mouseleave. Only used when ignore is true. If ignore is false, forwarding is always disabled regardless of this value.

Включает для окна игнорирование событий от мыши.

Все события мыши, произошедшие в этом окне, будут переданы окну позади этого окна, но, если это окно сфокусировано, оно все еще будет получать события клавиатуры.

win.setContentProtection(enable) macOS Windows

• enable boolean

Предотвращает захват содержимого окна другими приложениями.

On macOS it sets the NSWindow's sharingType to NSWindowSharingNone. On Windows it calls SetWindowDisplayAffinity with WDA_EXCLUDEFROMCAPTURE. For Windows 10 version 2004 and up the window will be removed from capture entirely, older Windows versions behave as if WDA_MONITOR is applied capturing a black window.

win.setFocusable(focusable) macOS Windows

• focusable boolean

Меняет, может ли окно быть сфокусировано.

На macOS он не снимает фокус с окна.

win.isFocusable() macOS Windows

Returns boolean - Whether the window can be focused.

win.setParentWindow(parent)

• parent BaseWindow | null

Sets parent as current window's parent window, passing null will turn current window into a top-level window.

win.getParentWindow()

Returns BaseWindow | null - The parent window or null if there is no parent.

win.getChildWindows()

Returns BaseWindow[] - All child windows.

win.setAutoHideCursor(autoHide) macOS

• autoHide boolean

Контролирует скрытие курсора при вводе текста.

win.selectPreviousTab() macOS

Выбирает предыдущую вкладку, когда нативные вкладки включены и в окне присутствуют другие вкладки.

win.selectNextTab() macOS

Выбирает следующую вкладку, когда нативные вкладки включены и в окне присутствуют другие вкладки.

win.showAllTabs() macOS

Shows or hides the tab overview when native tabs are enabled.

win.mergeAllWindows() macOS

Объединяет все окна в одно окно с множественными вкладками, когда нативные вкладки включены и в присутствуют открытые окна больше, чем 1.

win.moveTabToNewWindow() macOS

Перемещает текущую вкладку в новое окно, если нативные вкладки включены и присутствует больше, чем одна вкладка, в текущем окне.

win.toggleTabBar() macOS

Переключает видимость вкладки, если включены нативные вкладки и присутствует только одна вкладка в текущем окне.

win.addTabbedWindow(baseWindow) macOS

• baseWindow BaseWindow

Добавляет окно, как вкладку, в это окно, после вкладки экземпляра окна.

win.setVibrancy(type) macOS

• type string | null - Can be titlebar, selection, menu, popover, sidebar, header, sheet, window, hud, fullscreen-ui, tooltip, content, under-window, or under-page. See the macOS documentation for more details.

Adds a vibrancy effect to the window. Passing null or an empty string will remove the vibrancy effect on the window.

win.setBackgroundMaterial(material) Windows

• material string
  • auto - Let the Desktop Window Manager (DWM) automatically decide the system-drawn backdrop material for this window. This is the default.
  • none - Don't draw any system backdrop.
  • mica - Draw the backdrop material effect corresponding to a long-lived window.
  • acrylic - Draw the backdrop material effect corresponding to a transient window.
  • tabbed - Draw the backdrop material effect corresponding to a window with a tabbed title bar.

This method sets the browser window's system-drawn background material, including behind the non-client area.

See the Windows documentation for more details.

Note: This method is only supported on Windows 11 22H2 and up.

win.setWindowButtonPosition(position) macOS

• position Point | null

Set a custom position for the traffic light buttons in frameless window. Passing null will reset the position to default.

win.getWindowButtonPosition() macOS

Returns Point | null - The custom position for the traffic light buttons in frameless window, null will be returned when there is no custom position.

win.setTouchBar(touchBar) macOS

• touchBar TouchBar | null

Устанавливает слой сенсорной панели для текущего окна. Specifying null or undefined clears the touch bar. This method only has an effect if the machine has a touch bar.

Note: The TouchBar API is currently experimental and may change or be removed in future Electron releases.

win.setTitleBarOverlay(options) Windows

• options Object
  • color String (optional) Windows - The CSS color of the Window Controls Overlay when enabled.
  • symbolColor String (optional) Windows - The CSS color of the symbols on the Window Controls Overlay when enabled.
  • height Integer (optional) Windows - The height of the title bar and Window Controls Overlay in pixels.

On a Window with Window Controls Overlay already enabled, this method updates the style of the title bar overlay.