BrowserWindow

创建和控制浏览器窗口。

进程:主进程

  1. // 在主进程中.
  2. const { BrowserWindow } = require('electron')
  3. // 或者从渲染进程中使用 `remote`.
  4. // const { BrowserWindow } = require('electron').remote
  5. const win = new BrowserWindow({ width: 800, height: 600 })
  6. // Load a remote URL
  7. win.loadURL('https://github.com')
  8. // Or load a local HTML file
  9. win.loadURL(`file://${__dirname}/app/index.html`)

无边框窗口

如果想创建一个无边框或者任意形状的透明窗口,你可以使用Frameless Window 的API

优雅地显示窗口

当页面在窗口中直接加载时,用户会看到未完成的页面,这不是一个好的原生应用的体验。为了让画面显示时没有视觉闪烁,有两种不同的解决方案。

使用ready-to-show事件

在加载页面时,渲染进程第一次完成绘制时,如果窗口还没有被显示,渲染进程会发出 ready-to-show 事件 。 在此事件后显示窗口将没有视觉闪烁:

  1. const { BrowserWindow } = require('electron')
  2. const win = new BrowserWindow({ show: false })
  3. win.once('ready-to-show', () => {
  4. win.show()
  5. })

这个事件通常在 did-finish-load 事件之后发出,但是页面有许多远程资源时,它可能会在 did-finish-load之前发出事件。

Please note that using this event implies that the renderer will be considered “visible” and paint even though show is false. 如果您使用 paintWhenInitiallyHidden: false,此事件将永远不会被触发。

设置 backgroundColor

对于一个复杂的应用,ready-to-show 可能发出的太晚,会让应用感觉缓慢。 在这种情况下,建议立刻显示窗口,并使用接近应用程序背景的 backgroundColor

  1. const { BrowserWindow } = require('electron')
  2. const win = new BrowserWindow({ backgroundColor: '#2e2c29' })
  3. win.loadURL('https://github.com')

请注意,即使是使用 ready-to-show 事件的应用程序,仍建议使用设置 backgroundColor 使应用程序感觉更原生。

父子窗口

通过使用 parent 选项,你可以创建子窗口:

  1. const { BrowserWindow } = require('electron')
  2. const top = new BrowserWindow()
  3. const child = new BrowserWindow({ parent: top })
  4. child.show()
  5. top.show()

child 窗口将总是显示在 top 窗口的顶部.

模态窗口

模态窗口是禁用父窗口的子窗口,创建模态窗口必须设置 parentmodal 选项:

  1. const { BrowserWindow } = require('electron')
  2. const child = new BrowserWindow({ parent: top, modal: true, show: false })
  3. child.loadURL('https://github.com')
  4. child.once('ready-to-show', () => {
  5. child.show()
  6. })

页面可见性

页面可见性 API 的工作方式如下:

  • 在所有平台上, 可见性状态与窗口是否隐藏/最小化相关。
  • 此外, 在 macOS 上, 可见性状态还会跟踪窗口的遮挡状态。 如果窗口被另一个窗口完全遮挡了,可见性状态为hidden. 在其他平台上,可见性状态只有在使用 win.hide()使窗口最小化或者隐藏时才为 hidden
  • 如果创建BrowserWindow 时带有 show: false的参数, 最初的可见性状态将为visible 尽管窗口实际上是隐藏的。
  • 如果backgroundThrottling被禁用,可见性状态将保持为visible 即使窗口被最小化、遮挡或隐藏。

推荐您在可见性状态为 hidden 时暂停消耗资源的操作以便减少电力消耗。

平台相关的提示

  • 在 macOS 上,modal 窗口将显示为附加到父窗口的工作表。
  • 在 macOS 上,子窗口将保持与父窗口的相对位置。而在 Windows 和 Linux 中,当父窗口移动时子窗口不会移动。
  • 在Linux上,模态窗口的类型将更改为 dialog.
  • 在Linux上,许多桌面环境不支持隐藏模态窗口。

Class: BrowserWindow

创建和控制浏览器窗口。

进程:主进程

BrowserWindow 是一个EventEmitter.

通过 options 可以创建一个具有原生属性的 BrowserWindow

new BrowserWindow([options])

  • options Object (可选)
    • width Integer (可选) - 窗口的宽度(以像素为宽度)。 默认值为 800
    • height Integer (可选) - 窗口的高度(以像素为单位)。 默认值为 600
    • x Interger (可选) - (必选 如果使用了y) 窗口相对于屏幕左侧的偏移量。 默认值为将窗口居中。
    • y Integer (可选) - (必选 如果使用了x) 窗口相对于屏幕顶端的偏移量。 默认值为将窗口居中。
    • useContentSize Boolean (可选) - widthheight 将设置为 web 页面的尺寸(译注: 不包含边框), 这意味着窗口的实际尺寸将包括窗口边框的大小,稍微会大一点。 默认值为 false.
    • center Boolean (可选) - 窗口在屏幕居中.
    • 整型(可选)-窗口的最小宽度。默认为0 默认值为 0
    • minHeight Integer (optional) - Window’s minimum height. 默认值为 0
    • maxWidth Integer (optional) - Window’s maximum width. Default is no limit.
    • maxHeight Integer (optional) - Window’s maximum height. Default is no limit.
    • resizable Boolean (optional) - Whether window is resizable. 默认值为 true
    • movable Boolean (optional) - Whether window is movable. This is not implemented on Linux. 默认值为 true
    • minimizable Boolean (optional) - Whether window is minimizable. This is not implemented on Linux. 默认值为 true
    • maximizable Boolean (optional) - Whether window is maximizable. This is not implemented on Linux. 默认值为 true
    • closable Boolean (optional) - Whether window is closable. This is not implemented on Linux. 默认值为 true
    • focusable Boolean (可选) - 窗口是否可以聚焦. 默认值为 true。 在 Windows 中设置 focusable: false 也意味着设置了skipTaskbar: true. 在 Linux 中设置 focusable: false 时窗口停止与 wm 交互, 并且窗口将始终置顶。
    • alwaysOnTop Boolean (optional) - Whether the window should always stay on top of other windows. 默认值为 false.
    • fullscreen Boolean (可选) - 窗口是否全屏. 当明确设置为 false 时,在 macOS 上全屏的按钮将被隐藏或禁用. 默认值为 false.
    • fullscreenable Boolean (可选) - 窗口是否可以进入全屏状态. 在 macOS上, 最大化/缩放按钮是否可用 默认值为 true
    • simpleFullscreen Boolean (optional) - Use pre-Lion fullscreen on macOS. 默认值为 false.
    • skipTaskbar Boolean (optional) - Whether to show the window in taskbar. Default is false.
    • kiosk Boolean (optional) - Whether the window is in kiosk mode. 默认值为 false.
    • titleString(可选) - 默认窗口标题 默认为"Electron"。 如果由loadURL()加载的HTML文件中含有标签<title>,此属性将被忽略。
    • icon (NativeImage | String) (可选) - 窗口的图标. 在 Windows 上推荐使用 ICO 图标来获得最佳的视觉效果, 默认使用可执行文件的图标.
    • show Boolean (optional) - Whether window should be shown when created. 默认值为 true
    • paintWhenInitiallyHiddenBoolean(可选) - 当showfalse并且渲染器刚刚被创建时,它是否应激活。 为了让document.visibilityStateshow: false的情况下第一次加载时正确地工作,你应该把这个设置成false. 设置为 false 将会导致ready-to-show 事件不触发。 默认值为 true
    • frame Boolean (optional) - Specify false to create a Frameless Window. 默认值为 true
    • parent BrowserWindow (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. 默认值为 false.
    • acceptFirstMouse Boolean (optional) - Whether the web view accepts a single mouse-down event that simultaneously activates the window. Default is false.
    • disableAutoHideCursor Boolean (optional) - Whether to hide cursor when typing. 默认值为 false.
    • autoHideMenuBar Boolean (optional) - Auto hide the menu bar unless the Alt key is pressed. 默认值为 false.
    • enableLargerThanScreen Boolean (可选) - 是否允许改变窗口的大小使之大于屏幕的尺寸. 仅适用于 macOS,因为其它操作系统默认允许 大于屏幕的窗口。 默认值为 false.
    • backgroundColor String(可选) - 窗口的背景颜色为十六进制值,例如#66CD00, #FFF, #80FFFFFF (设置transparenttrue方可支持alpha属性,格式为#AARRGGBB)。 默认值为 #FFF(白色)。
    • hasShadow Boolean (optional) - Whether window should have a shadow. 默认值为 true
    • opacity Number (optional) - 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) - 强制窗口使用深色主题,只在部分GTK+3桌面环境下有效。 默认值为 false.
    • transparent Boolean (optional) - Makes the window transparent. 默认值为 false. On Windows, does not work unless the window is frameless.
    • type String (optional) - The type of window, default is normal window. See more about this below.
    • visualEffectState String (optional) - Specify how the material appearance should reflect window activity state on macOS. Must be used with the vibrancy property. Possible values are:
      • 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) - The style of window title bar. Default is default. Possible values are:
      • default - 标准灰色不透明的Mac标题栏
      • hidden - 隐藏标题栏, 内容充满整个窗口, 但它依然在左上角, 仍然受标准窗口控制.
      • hiddenInset - 隐藏标题栏, 显示小的控制按钮在窗口边缘
      • customButtonsOnHover Boolean (可选) - 在macOS的无框窗口上绘制自定义的关闭与最小化按钮. 除非鼠标悬停到窗口的左上角, 否则这些按钮不会显示出来. 这些自定义的按钮能防止, 与发生于标准的窗口工具栏按钮处的鼠标事件相关的问题. 注意: 此选项目前是实验性的。
    • trafficLightPosition Point (optional) - Set a custom position for the traffic light buttons. Can only be used with titleBarStyle set to hidden
    • fullscreenWindowTitle Boolean (optional) - Shows the title in the title bar in full screen mode on macOS for all titleBarStyle options. 默认值为 false.
    • thickFrame Boolean(可选)-对 Windows 上的无框窗口使用WS_THICKFRAME 样式,会增加标准窗口框架。 设置为 false 时将移除窗口的阴影和动画. 默认值为 true
    • vibrancy String (可选) - 窗口是否使用 vibrancy 动态效果, 仅 macOS 中有效. Can be appearance-based, light, dark, titlebar, selection, menu, popover, sidebar, medium-light, ultra-dark, header, sheet, window, hud, fullscreen-ui, tooltip, content, under-window, or under-page. Please note that using frame: false in combination with a vibrancy value requires that you use a non-default titleBarStyle as well. Also note that appearance-based, light, dark, medium-light, and ultra-dark have been deprecated and will be removed in an upcoming version of macOS.
    • zoomToPageWidth Boolean (optional) - Controls the behavior on macOS when option-clicking the green stoplight button on the toolbar or by clicking the Window > Zoom menu item. 如果为 true, 窗口将放大到网页的本身宽度, false 将使其缩放到屏幕的宽度。 这也会影响直接调用 maximize() 时的行为。 默认值为 false.
    • tabbingIdentifier String (可选) - 选项组卡的名称,在macOS 10.12+上可使窗口在原生选项卡中打开. 具有相同标识符的窗口将被组合在一起。 这还会在窗口的标签栏中添加一个原生的新选项卡按钮, 并允许 app 和窗口接收 new-window-for-tab 事件。
    • webPreferences Object (optional) - Settings of web page’s features.
      • devTools Boolean (可选) - 是否开启 DevTools. 如果设置为 false, 则无法使用 BrowserWindow.webContents.openDevTools () 打开 DevTools。 默认值为 true
      • nodeIntegration Boolean (optional) - Whether node integration is enabled. 默认值为 false.
      • nodeIntegrationInWorker Boolean (可选) - 是否在Web工作器中启用了Node集成. 默认值为 false. 更多内容参见 多线程.
      • nodeIntegrationInSubFrames Boolean (可选项)(实验性),是否允许在子页面(iframe)或子窗口(child window)中集成Node.js; 预先加载的脚本会被注入到每一个iframe,你可以用 process.isMainFrame 来判断当前是否处于主框架(main frame)中。
      • preload String (可选) -在页面运行其他脚本之前预先加载指定的脚本 无论页面是否集成Node, 此脚本都可以访问所有Node API 脚本路径为文件的绝对路径。 当 node integration 关闭时, 预加载的脚本将从全局范围重新引入node的全局引用标志 参考示例.
      • sandbox Boolean (可选)-如果设置该参数, 沙箱的渲染器将与窗口关联, 使它与Chromium OS-level 的沙箱兼容, 并禁用 Node. js 引擎。 它与 nodeIntegration 的选项不同,且预加载脚本的 API 也有限制. 更多详情.
      • enableRemoteModule Boolean (optional) - Whether to enable the remote module. 默认值为 false.
      • session Session (可选) - 设置页面的 session 而不是直接忽略 Session 对象, 也可用 partition 选项来代替,它接受一个 partition 字符串. 同时设置了sessionpartition时, session 的优先级更高. 默认使用默认的 session.
      • partition String (optional) - 通过 session 的 partition 字符串来设置界面session. 如果 partitionpersist:开头, 该页面将使用持续的 session,并在所有页面生效,且使用同一个partition. 如果没有 persist: 前缀, 页面将使用 in-memory session. 通过分配相同的 partition, 多个页可以共享同一会话。 默认使用默认的 session.
      • affinity String (可选) - 当指定,具有相同affinity 的 web页面将在相同的渲染进程运行。 需要注意的是,由于渲染过程中会有代码重用,如 webPreferencespreload, sandboxnodeIntegration等选项会在不同页面之间共用,即使你已经在不同页面中为同一选项设置过不同的值,它们仍会被共用。 因此,建议为affinity相同的页面,使用相同的 webPreferences Deprecated
      • zoomFactor Number (optional) - The default zoom factor of the page, 3.0 represents 300%. 默认值为 1.0
      • javascript Boolean (optional) - Enables JavaScript support. 默认值为 true
      • webSecurity Boolean (可选) - 当设置为 false, 它将禁用同源策略 (通常用来测试网站), 如果此选项不是由开发者设置的,还会把 allowRunningInsecureContent设置为 true. 默认值为 true
      • allowRunningInsecureContent Boolean (optional) - Allow an https page to run JavaScript, CSS or plugins from http URLs. 默认值为 false.
      • images Boolean (optional) - Enables image support. 默认值为 true
      • textAreasAreResizable Boolean (optional) - Make TextArea elements resizable. Default is true.
      • webgl Boolean (optional) - Enables WebGL support. 默认值为 true
      • plugins Boolean (optional) - Whether plugins should be enabled. 默认值为 false.
      • experimentalFeatures Boolean (optional) - Enables Chromium’s experimental features. 默认值为 false.
      • scrollBounce Boolean (optional) - Enables scroll bounce (rubber banding) effect on macOS. 默认值为 false.
      • enableBlinkFeaturesString(可选) - 以逗号分隔的需要启用的特性列表,譬如CSSVariables,KeyboardEventKeyRuntimeEnabledFeatures.json5文件中查看被支持的所有特性.
      • disableBlinkFeatures String (可选) - 以 ,分隔的禁用特性列表, 如 CSSVariables,KeyboardEventKey. 在RuntimeEnabledFeatures.json5 文件中查看被支持的所有特性.
      • defaultFontFamily Object (optional) - Sets the default font for the font-family.
        • standard String (可选) - 默认值为 Times New Roman.
        • serif String (可选) - 默认值为 Times New Roman.
        • sansSerif String (可选) - 默认值为 Arial.
        • monospace String (可选) - 默认值为 Courier New.
        • cursive String (可选) - 默认值为 Script.
        • fantasy String (可选) - 默认值为 Impact.
      • defaultFontSize Integer (可选) - 默认值为 16.
      • defaultMonospaceFontSize Integer (可选) - 默认值为 13.
      • minimumFontSize Integer (可选) - 默认值为 0.
      • defaultEncoding String (可选) - 默认值为 ISO-8859-1.
      • backgroundThrottlingBoolean (可选)-是否在页面成为背景时限制动画和计时器。 这也会影响到 Page Visibility API. 默认值为 true
      • offscreen Boolean (optional) - 是否绘制和渲染可视区域外的窗口. 默认值为 false. 更多详情, 请参见 offscreen rendering tutorial
      • contextIsolation Boolean (可选) - 是否在独立 JavaScript 环境中运行 Electron API和指定的preload 脚本. 默认值为 false. preload脚本的运行环境仍然可以访问documentwindow全局变量,但它将使用自己内置的函数 (如Array, Object, JSON等),并且将被加载的页面与对全局环境所做的任何更改隔离开来. Electron API 仅在 preload 脚本中有效,而不是加载的页面。 在加载可能不受信任的远程内容时, 应使用此选项, 以确保加载的内容不能篡改 preload 脚本和使用的 Electron APIs。 此选项使用 Chrome Content Scripts 使用的相同技术。 通过在控制台选项卡顶部的组合框中选择 “Electron Isolated Context” 条目, 可以在开发工具中访问此上下文。
      • worldSafeExecuteJavaScript Boolean (optional) - If true, values returned from webFrame.executeJavaScript will be sanitized to ensure JS values can’t unsafely cross between worlds when using contextIsolation. The default is false. In Electron 12, the default will be changed to true. Deprecated
      • nativeWindowOpen Boolean (可选) - 是否使用原生的window.open(). 默认值为 false. Child windows will always have node integration disabled unless nodeIntegrationInSubFrames is true. 注意: 此选项目前是实验性的。
      • webviewTag Boolean (可选) - 是否启用 <webview> tag标签. 默认值为 false. 注意:< webview> 配置的 preload 脚本在执行时将启用节点集成, 因此应确保远程或不受信任的内容无法创建恶意的 preload 脚本 。 可以使用 webContents 上的 will-attach-webview 事件对 preload 脚本进行剥离, 并验证或更改 <webview> 的初始设置。
      • additionalArguments String[] (可选) - 一系列将会被附加至此app的渲染进程的process.argv的字符串. 对于将少量数据向下传至渲染进程的预加载脚本而言是十分实用的.
      • safeDialogs Boolean (optional) - Whether to enable browser style consecutive dialog protection. 默认值为 false.
      • safeDialogsMessage String (可选) - 当持续对话框保护被触发时显示的消息。 如果没有定义,那么将使用缺省的消息。注意:当前缺省消息是英文,并没有本地化。
      • disableDialogs Boolean (optional) - Whether to disable dialogs completely. Overrides safeDialogs. 默认值为 false.
      • navigateOnDragDrop Boolean (optional) - Whether dragging and dropping a file or link onto the page causes a navigation. 默认值为 false.
      • autoplayPolicy String (optional) - Autoplay policy to apply to content in the window, can be no-user-gesture-required, user-gesture-required, document-user-activation-required. Defaults to no-user-gesture-required.
      • disableHtmlFullscreenWindowResize Boolean (optional) - Whether to prevent the window from resizing when entering HTML Fullscreen. Default is false.
      • accessibleTitle String (optional) - An alternative title string provided only to accessibility tools such as screen readers. This string is not directly visible to users.
      • spellcheck Boolean (optional) - Whether to enable the builtin spellchecker. 默认值为 true
      • enableWebSQL Boolean (optional) - Whether to enable the WebSQL api. 默认值为 true
      • v8CacheOptions String (optional) - Enforces the v8 code caching policy used by blink. Accepted values are
        • none - Disables code caching
        • code - Heuristic based code caching
        • bypassHeatCheck - Bypass code caching heuristics but with lazy compilation
        • bypassHeatCheckAndEagerCompile - Same as above except compilation is eager. Default policy is code.

当使用 minWidth/maxWidth/minHeight/maxHeight 设置最小或最大窗口大小时, 它只限制用户。 它不会阻止您将不符合大小限制的值传递给 setBounds/setSizeBrowserWindow 的构造函数。

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

  • 在 Linux 上, 可能的类型有 desktopdocktoolbarsplashnotification
  • On macOS, possible types are desktop, textured.
    • textured 类型增加金属色泽的外观 (NSTexturedBackgroundWindowMask).
    • desktop 类型将窗口置于桌面背景级别 (kCGDesktopWindowLevel - 1). 注意,桌面窗口不会接收焦点、键盘或鼠标事件,但您可以使用< 0> globalShortcut < /0 >接收快捷键的消息
  • 在 Windows 上, 可能的类型为 toolbar.

实例事件

使用 new BrowserWindow 创建的对象具有以下属性:

注意: 某些事件仅在特定的操作系统上可用, 这些方法会被标记出来。

事件: ‘page-title-updated’

返回:

  • event Event
  • title String
  • explicitSet Boolean

文档更改标题时触发,调用event.preventDefault()将阻止更改标题 explicitSet is false when title is synthesized from file URL.

事件: ‘close’

返回:

  • event Event

在窗口要关闭的时候触发。 它在DOM 的beforeunloadunload 事件之前触发. 调用event.preventDefault()将阻止这个操作。

通常你想通过 beforeunload处理器来决定是否关闭窗口,但是它也会在窗口重载的时候触发. 在 Electron 里,返回除 undefined之外的任何值都将取消关闭. 例如:

  1. window.onbeforeunload = (e) => {
  2. console.log('I do not want to be closed')
  3. // 与通常的浏览器不同,会提示给用户一个消息框,
  4. //返回非空值将默认取消关闭
  5. //建议使用对话框 API 让用户确认关闭应用程序.
  6. e.returnValue = false // 相当于 `return false` ,但是不推荐使用
  7. }

*注意: window.onbeforeunload = handlerwindow.addEventListener('beforeunload', handler) 的行为有细微的区别。 推荐总是显式地设置 event.returnValue, 而不是仅仅返回一个值, 因为前者在Electron中作用得更为一致.*

事件: ‘closed’

Emitted when the window is closed. After you have received this event you should remove the reference to the window and avoid using it any more.

事件: ‘session-end’ Windows

因为强制关机或机器重启或会话注销而导致窗口会话结束时触发

事件: ‘unresponsive’

网页变得未响应时触发

事件: ‘responsive’

未响应的页面变成响应时触发

事件: ‘blur’

当窗口失去焦点时触发

事件: ‘focus’

当窗口获得焦点时触发

事件: ‘show’

当窗口显示时触发

事件: ‘hide’

当窗口隐藏时触发

事件: ‘ready-to-show’

当页面已经渲染完成(但是还没有显示) 并且窗口可以被现实时触发

Please note that using this event implies that the renderer will be considered “visible” and paint even though show is false. 如果您使用 paintWhenInitiallyHidden: false,此事件将永远不会被触发。

事件: ‘maximize’

窗口最大化时触发

事件: ‘unmaximize’

当窗口从最大化状态退出时触发

事件: ‘minimize’

窗口最小化时触发

事件: ‘restore’

当窗口从最小化状态恢复时触发

事件: ‘will-resize’ macOS Windows

返回:

  • event Event
  • newBounds Rectangle - Size the window is being resized to.

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.

事件: ‘resize’

调整窗口大小后触发。

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

返回:

  • 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 resized manually. Resizing the window with setBounds/setSize will not emit this event.

事件: ‘move’

窗口移动到新位置时触发

Event: ‘moved’ macOS Windows

当窗口移动到新位置时触发一次

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

事件: ‘enter-full-screen’

窗口进入全屏状态时触发

事件: ‘leave-full-screen’

窗口离开全屏状态时触发

事件: ‘enter-html-full-screen’

窗口进入由HTML API 触发的全屏状态时触发

事件: ‘leave-html-full-screen’

窗口离开由HTML API触发的全屏状态时触发

Event: ‘always-on-top-changed’

返回:

  • event Event
  • isAlwaysOnTop Boolean

设置或取消设置窗口总是在其他窗口的顶部显示时触发。

事件: ‘app-command’ Windows__Linux

返回:

  • event Event
  • command String

请求一个应用程序命令.aspx)时触发. 典型的是键盘上的媒体键或浏览器命令, 以及在Windows上的一些鼠标中内置的“后退”按钮。

命令是小写的,下划线替换为连字符,以及APPCOMMAND_ 前缀将被删除。 例如 APPCOMMAND_BROWSER_BACKWARD将被browser-backward触发.

  1. const { BrowserWindow } = require('electron')
  2. const win = new BrowserWindow()
  3. win.on('app-command', (e, cmd) => {
  4. // Navigate the window back when the user hits their mouse back button
  5. if (cmd === 'browser-backward' && win.webContents.canGoBack()) {
  6. win.webContents.goBack()
  7. }
  8. })

The following app commands are explicitly supported on Linux:

  • browser-backward
  • browser-forward

事件: ‘scroll-touch-begin’ macOS

滚轮事件阶段开始时触发

事件: ‘scroll-touch-end’ macOS

滚轮事件阶段结束时触发

事件: ‘scroll-touch-edge’ macOS

滚轮事件阶段到达元素边缘时触发

事件: ‘swipe’ macOS

返回:

  • event Event
  • direction String

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

The method underlying this event is built to handle older macOS-style trackpad swiping, where the content on the screen doesn’t move with the swipe. 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

返回:

  • event Event
  • rotation Float

Emitted on trackpad rotation gesture. Continually emitted until rotation gesture is ended. 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. Counter-clockwise rotation values are positive, while clockwise ones are negative.

事件: ‘sheet-begin’ macOS

窗口打开sheet(工作表) 时触发

事件: ‘sheet-end’ macOS

窗口关闭sheet(工作表) 时触发

事件: ‘new-window-for-tab’ macOS

当点击了系统的新标签按钮时触发

Event: ‘system-context-menu’ Windows

返回:

  • 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.

静态方法

BrowserWindow 类有以下方法:

BrowserWindow.getAllWindows()

返回 BrowserWindow[] - 所有打开的窗口的数组

BrowserWindow.getFocusedWindow()

返回 BrowserWindow | null - 此应用程序中当前获得焦点的窗口,如果无就返回 null.

BrowserWindow.fromWebContents(webContents)

Returns BrowserWindow | null - The window that owns the given webContents or null if the contents are not owned by a window.

BrowserWindow.fromBrowserView(browserView)

Returns BrowserWindow | null - The window that owns the given browserView. If the given view is not attached to any window, returns null.

BrowserWindow.fromId(id)

  • id Integer

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

BrowserWindow.addExtension(path) Deprecated

  • path String

添加位于 path的扩展,并且返回扩展名

该方法如果扩展的 manifest 缺失或不完整,该方法不会返回。

注意: 该 API 不能在 app 模块的 ready 事件之前调用.

Note: This method is deprecated. Instead, use ses.loadExtension(path).

BrowserWindow.removeExtension(name) Deprecated

  • name String

根据名字删除一个 Chrome 的扩展。

注意: 该 API 不能在 app 模块的 ready 事件之前调用.

Note: This method is deprecated. Instead, use ses.removeExtension(extension_id).

BrowserWindow.getExtensions() Deprecated

Returns Record<String, ExtensionInfo> - The keys are the extension names and each value is an Object containing name and version properties.

注意: 该 API 不能在 app 模块的 ready 事件之前调用.

Note: This method is deprecated. Instead, use ses.getAllExtensions().

BrowserWindow.addDevToolsExtension(path) Deprecated

  • path String

添加位于 path的 DevTools 扩展,并且返回扩展名

扩展将被记住, 所以你只需要调用这个API一次, 这个API不是用于编程使用. 如果尝试添加已经加载的扩展, 此方法将不会返回, 而是会向控制台记录警告.

该方法如果扩展的 manifest 缺失或不完整,该方法不会返回。

注意: 该 API 不能在 app 模块的 ready 事件之前调用.

Note: This method is deprecated. Instead, use ses.loadExtension(path).

BrowserWindow.removeDevToolsExtension(name) Deprecated

  • name String

根据名字删除一个 DevTools 的扩展。

注意: 该 API 不能在 app 模块的 ready 事件之前调用.

Note: This method is deprecated. Instead, use ses.removeExtension(extension_id).

BrowserWindow.getDevToolsExtensions() Deprecated

Returns Record<string, ExtensionInfo> - The keys are the extension names and each value is an Object containing name and version properties.

要检查是否安装了 DevTools 扩展,您可以运行以下内容:

  1. const { BrowserWindow } = require('electron')
  2. const installed = 'devtron' in BrowserWindow.getDevToolsExtensions()
  3. console.log(installed)

注意: 该 API 不能在 app 模块的 ready 事件之前调用.

Note: This method is deprecated. Instead, use ses.getAllExtensions().

实例属性

使用 new BrowserWindow 创建的对象具有以下属性:

  1. const { BrowserWindow } = require('electron')
  2. // In this example `win` is our instance
  3. const win = new BrowserWindow({ width: 800, height: 600 })
  4. win.loadURL('https://github.com')

win.webContents Readonly

A WebContents object this window owns. All web page related events and operations will be done via it.

有关它的方法和事件, 请参见 webContents documentation

win.id Readonly

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

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.visibleOnAllWorkspaces

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

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

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

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

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.

  1. const win = new BrowserWindow({ height: 600, width: 600 })
  2. const template = [
  3. {
  4. role: 'windowmenu'
  5. }
  6. ]
  7. win.excludedFromShownWindowsMenu = true
  8. const menu = Menu.buildFromTemplate(template)
  9. 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.

实例方法

使用 new BrowserWindow 创建的对象具有以下实例方法:

注意: 某些方法仅在特定的操作系统上可用, 这些方法会被标记出来。

win.destroy()

强制关闭窗口, 除了closed之外,closeunloadbeforeunload 都不会被触发

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()

聚焦于窗口

win.blur()

取消窗口的聚焦

win.isFocused()

返回 Boolean - 判断窗口是否聚焦

win.isDestroyed()

返回 Boolean -判断窗口是否被销毁

win.show()

显示并聚焦于窗口

win.showInactive()

显示但不聚焦于窗口

win.hide()

隐藏窗口

win.isVisible()

返回 Boolean - 判断窗口是否可见

win.isModal()

返回 Boolean - 判断是否为模态窗口

win.maximize()

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

win.unmaximize()

取消窗口最大化

win.isMaximized()

返回 Boolean - 判断窗口是否最大化

win.minimize()

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

win.restore()

将窗口从最小化状态恢复到以前的状态。

win.isMinimized()

返回 Boolean -判断窗口是否最小化

win.setFullScreen(flag)

  • flag Boolean

设置窗口是否应处于全屏模式。

win.isFullScreen()

返回 Boolean - 窗口当前是否已全屏

win.setSimpleFullScreen(flag) macOS

  • flag Boolean

进入或离开简单的全屏模式。

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

win.isSimpleFullScreen() macOS

返回 Boolean - 窗口是否为简单全屏模式(pre-Lion)。

win.isNormal()

返回 Boolean - 窗口是否处于正常状态(未最大化,未最小化,不在全屏模式下)。

win.setAspectRatio(aspectRatio[, extraSize]) macOS Linux

  • aspectRatio Float- 为内容视图保持的宽高比.
  • extraSize Size (optional) macOS - The extra size not to be included while maintaining the aspect ratio.

这将使窗口保持长宽比。 额外的大小允许开发人员有空间 (以像素为单位), 不包括在纵横比计算中。 此 API 已经考虑了窗口大小和内容大小之间的差异。

想象一个使用高清视频播放器和相关控件的普通窗口。 假假如左边缘有15px, 右边缘有25px, 在播放器下面有50px. 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 }. 第二个参数不管网页中的额外的宽度和高度在什么位置, 只要它们存在就行. 在全部内部窗口中,加上任何额外的宽度和高度 。

win.setBackgroundColor(backgroundColor)

  • backgroundColor String - 十六进制的窗口背景色,如 #66CD00#FFF#80FFFFFF。 (如果transparenttrue的话,也支持alpha 通道。) 默认值为 #FFF(白色)。

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

win.previewFile(path[, displayName]) macOS

  • path String -要用 QuickLook 预览的文件的绝对路径。 这一点很重要,因为Quick Look 使用了路径上的文件名和文件扩展名 来决定要打开的文件的内容类型。
  • displayName String (可选) - 在Quick Look 模态视图中显示的文件的名称。 这完全是视觉的,不会影响文件的内容类型。 默认值为 path.

使用 Quick Look来预览路径中的文件.

win.closeFilePreview() macOS

关闭当前打开的 Quick Look 面板.

win.setBounds(bounds[, animate])

  • bounds Partial<Rectangle>
  • animate Boolean (可选) macOS

重置窗口,并且移动窗口到指定的位置. Any properties that are not supplied will default to their current values.

  1. const { BrowserWindow } = require('electron')
  2. const win = new BrowserWindow()
  3. // set all bounds properties
  4. win.setBounds({ x: 440, y: 225, width: 800, height: 600 })
  5. // set a single bounds property
  6. win.setBounds({ width: 100 })
  7. // { x: 440, y: 225, width: 100, height: 600 }
  8. console.log(win.getBounds())

win.getBounds()

Returns Rectangle - The bounds of the window as Object.

win.getBackgroundColor()

Returns String - Gets the background color of the window. See Setting backgroundColor.

win.setContentBounds(bounds[, animate])

  • bounds Rectangle
  • animate Boolean (可选) macOS

调整窗口的工作区 (如网页) 的大小并将其移动到所提供的边界。

win.getContentBounds()

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

win.getNormalBounds()

返回 Rectangle - 包含正常状态下的窗口大小。

注意:无论当前的窗口状态为:最大化、最小化或者全屏,这个方法都将得到窗口在正常显示状态下的位置信息以及大小信息。 在正常状态下,getBounds 与 getNormalBounds 得到的边界信息 Rectangle 是一致的。

win.setEnabled(enable)

  • enable Boolean

禁用或者启用窗口。

win.isEnabled()

Returns Boolean - whether the window is enabled.

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

  • width Integer
  • height Integer
  • animate Boolean (可选) macOS

调整窗口的widthheight. If width or height are below any set minimum size constraints the window will snap to its minimum size.

win.getSize()

返回 Integer []-包含窗口的宽度和高度。

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

  • width Integer
  • height Integer
  • animate Boolean (可选) macOS

将窗口的工作区 (如网页) 的大小调整为 widthheight

win.getContentSize()

返回 Integer []-包含窗口的宽度和高度。

win.setMinimumSize(width, height)

  • width Integer
  • height Integer

设置窗口最小化的 widthheight.

win.getMinimumSize()

返回 Integer []-包含窗口最小化的宽度和高度。

win.setMaximumSize(width, height)

  • width Integer
  • height Integer

设置窗口最大化的 widthheight.

win.getMaximumSize()

返回 Integer []-包含窗口最大化的宽度和高度。

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

返回 Boolean - 窗口是否可以被用户拖动

在 Linux 上总是返回 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.

在 Linux 上总是返回 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

返回 Boolean - 窗口是否可以最大化.

在 Linux 上总是返回 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

返回 Boolean - 窗口是否可以被用户关闭.

在 Linux 上总是返回 true

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 (可选) macOS - 设置此窗口相对于给定 级别的层数。. 默认值为0. 请注意, Apple 不鼓励在 屏幕保护程序 之上设置高于1的级别。

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()

返回 Boolean - 当前窗口是否始终在其它窗口之前.

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()

无论焦点如何, 将窗口移至顶端(z轴上的顺序).

win.center()

将窗口移动到屏幕中央。

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

  • x Integer
  • y Integer
  • animate Boolean (可选) macOS

将窗口移动到 xy

win.getPosition()

返回 Integer[] - 返回一个包含当前窗口位置的数组.

win.setTitle(title)

  • title String

将原生窗口的标题更改为 title

win.getTitle()

返回 String-原生窗口的标题。

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 (可选)

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. 例如:

  1. const { BrowserWindow } = require('electron')
  2. const win = new BrowserWindow()
  3. const toolbarRect = document.getElementById('toolbar').getBoundingClientRect()
  4. win.setSheetOffset(toolbarRect.height)

win.flashFrame(flag)

  • flag Boolean

启动或停止闪烁窗口, 以吸引用户的注意。

win.setSkipTaskbar(skip)

  • skip Boolean

使窗口不显示在任务栏中。

win.setKiosk(flag)

  • flag Boolean

Enters or leaves kiosk mode.

win.isKiosk()

返回 Boolean - 判断窗口是否处于kiosk模式.

win.getMediaSourceId()

Returns String - Window id in the format of DesktopCapturerSource’s id. For example “window🔢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()

返回 Buffer - 窗口的平台特定句柄

Windows上句柄类型为 HWND,macOS 上为 NSView*,Linux 上为Window (unsigned long)

win.hookWindowMessage(message, callback) Windows

  • message Integer
  • callback Function

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

win.isWindowMessageHooked(message) Windows

  • message Integer

返回 Boolean - truefalse ,具体取决于是否钩挂了消息.

win.unhookWindowMessage(message) Windows

  • message Integer

取消窗口信息的钩子。

win.unhookAllWindowMessages() Windows

取消所有窗口信息的钩子。

win.setRepresentedFilename(filename) macOS

  • filename String

设置窗口所代表的文件的路径名,并且将这个文件的图标放在窗口标题栏上。

win.getRepresentedFilename() macOS

返回 String - 获取窗口当前文件路径.

win.setDocumentEdited(edited) macOS

  • edited Boolean

明确指出窗口文档是否可以编辑, 如果设置为true则将标题栏的图标变成灰色.

win.isDocumentEdited() macOS

返回 Boolean - 判断当前窗口文档是否可编辑.

win.focusOnWebView()

win.blurWebView()

win.capturePage([rect])

Returns Promise<NativeImage> - Resolves with a NativeImage

Captures a snapshot of the page within rect. Omitting rect will capture the whole visible page.

win.loadURL(url[, options])

  • url String
  • options Object (可选)
    • httpReferrer (String | Referrer) (optional) - An HTTP Referrer URL.
    • userAgent String (可选) - 发起请求的 userAgent.
    • extraHeaders String (可选) - 用 “\n” 分割的额外标题
    • postData (UploadRawData[] | UploadFile[] | UploadBlob[]) (可选)
    • baseURLForDataURL String (optional) - Base URL (with trailing path separator) for files to be loaded by the data URL. This is needed only if the specified url is a data URL and needs to load other files.

Returns Promise<void> - the promise will resolve when the page has finished loading (see did-finish-load), and rejects if the page fails to load (see did-fail-load).

Same as webContents.loadURL(url[, options]).

url 可以是远程地址 (例如 http://),也可以是 file:// 协议的本地HTML文件的路径.

为了确保文件网址格式正确, 建议使用Node的 url.format 方法:

  1. const url = require('url').format({
  2. protocol: 'file',
  3. slashes: true,
  4. pathname: require('path').join(__dirname, 'index.html')
  5. })
  6. win.loadURL(url)

您可以通过执行以下操作, 使用带有网址编码数据的 POST请求​​加载网址:

  1. win.loadURL('http://localhost:8000/post', {
  2. postData: [{
  3. type: 'rawData',
  4. bytes: Buffer.from('hello=world')
  5. }],
  6. extraHeaders: 'Content-Type: application/x-www-form-urlencoded'
  7. })

win.loadFile(filePath[, options])

  • filePath String
  • options Object (可选)
    • query Record<String, String> (optional) - Passed to url.format().
    • search String (可选) - 传递给 url.format().
    • hash String (可选) - 传递给 url.format().

Returns Promise<void> - the promise will resolve when the page has finished loading (see did-finish-load), and rejects if the page fails to load (see did-fail-load).

Same as webContents.loadFile, filePath should be a path to an HTML file relative to the root of your application. See the webContents docs for more information.

win.reload()

webContents.reload 相同.

win.setMenu(menu) Linux Windows

  • menu Menu | null

Sets the menu as the window’s menu bar.

win.removeMenu() Linux Windows

Remove the window’s menu bar.

win.setProgressBar(progress[, options])

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

Sets progress value in progress bar. Valid range is [0, 1.0].

当进度小于0时不显示进度; 当进度大于0时显示结果不确定.

在 Linux 平台上,只支持 Unity 桌面模式, 你需要在 package.json 中为 desktopName 指定 *.desktop 的文件名. By default, it will assume {app.name}.desktop.

在 Windows 上, 可以传递模式。 可以接受的值为none, normal, indeterminate, errorpaused. 如果没有设置模式 (但值在有效范围内) 的情况下调用 setProgressBar, 默认值为normal

win.setOverlayIcon(overlay, description) Windows

  • overlay NativeImage | null - 右下角任务栏的显示图标。 如果此参数是 null,覆盖层层会被清除。
  • description String -提供给屏幕阅读器的描述文字

在当前任务栏图标上设置一个 16 x 16 像素的图标, 通常用于传达某种应用程序状态或被动地通知用户。

win.setHasShadow(hasShadow)

  • hasShadow Boolean

Sets whether the window should have a shadow.

win.hasShadow()

返回 Boolean - 判断窗口是否有阴影.

win.setOpacity(opacity) Windows macOS

  • opacity Number - 介于0.0 ( 完全透明 ) 和1.0 ( 完全不透明 ) 之间

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 实验性

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

对窗口形状的设置决定了窗口内系统允许绘制与用户交互的区域. 在给定的区域外, 没有像素会被绘制, 且没有鼠标事件会被登记. 在该区域外的鼠标事件将不会被该窗口接收, 而是落至该窗口后方的任意窗口.

win.setThumbarButtons(buttons) Windows

返回 Boolean - 按钮是否成功添加

将指定的一组按钮添加到菜单栏的缩图工具栏上。 返回一个 Boolean 对象表示是否成功地添加了缩略图.

由于空间有限, 缩图工具栏中的按钮数量不要超过7个。 一旦设置了缩略图工具栏,则无法删除。 但你可以通过调用 API 传递一个空数组来清除按钮.

buttons 是一个 Button 对象的数组:

  • Button Object
    • icon NativeImage - 在缩图工具栏上显示的图标.
    • click Function
    • tooltip String (可选) - 按钮的提示文本.
    • flags String[] (optional) - Control specific states and behaviors of the button. By default, it is ['enabled'].

flags 属性是一个数组,包含以下String类型的值:

  • enabled - 该按钮处于活动状态并可供用户使用.
  • disabled - The button is disabled. It is present, but has a visual state indicating it will not respond to user action.
  • dismissonclick - 当按钮被点击时,缩略图窗口立即关闭。
  • nobackground - 不可以画按钮边框,只能使用图片背景。
  • hidden - 该按钮对用户不可见。
  • 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

将窗口的区域设置为在任务栏中悬停在窗口上方时显示的缩略图图像。 通过指定空区域:{ x: 0, y: 0, width: 0, height: 0 },可以重置整个窗口的缩略图。

win.setThumbnailToolTip(toolTip) Windows

  • toolTip String

设置在任务栏中悬停在窗口缩略图上时显示的工具提示。

win.setAppDetails(options) Windows

  • 选项 对象
    • appId String (可选) - 窗口的 App User Model ID.aspx). 该项必须设置, 否则其他选项将没有效果.
    • appIconPath String (可选) -窗口的 Relaunch Icon.aspx).
    • appIconIndex Integer (optional) - Index of the icon in appIconPath. Ignored when appIconPath is not set. 默认值为 0
    • relaunchCommand String (可选) - 窗口的 重新启动命令.aspx).
    • relaunchDisplayName String (可选) - 窗口的重新启动显示名称.aspx).

设置窗口任务栏按钮的属性。

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

win.showDefinitionForSelection() macOS

webContents.showDefinitionForSelection() 相同.

win.setIcon(icon) Windows Linux

设置窗口图标

win.setWindowButtonVisibility(visible) macOS

  • visible Boolean

设置是否窗口交通灯需要显示。

titleBarStylecustomButtonsOnHover的时候,不可调用。

win.setAutoHideMenuBar(hide)

  • 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()

返回 Boolean - 判断窗口的菜单栏是否自动隐藏.

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()

返回 Boolean - 判断窗口的菜单栏是否可见.

win.setVisibleOnAllWorkspaces(visible[, options])

  • visible Boolean
  • options Object (可选)
    • visibleOnFullScreen Boolean (可选) macOS - 设置是否窗口可以在全屏窗口之上显示。

设置窗口是否在所有工作空间上可见

注意: 该 API 在 Windows 上无效.

win.isVisibleOnAllWorkspaces()

返回 Boolean - 判断窗口是否在所有工作空间上可见.

注意: 该 API 在 Windows 上始终返回 false.

win.setIgnoreMouseEvents(ignore[, options])

  • ignore Boolean
  • options Object (可选)
    • forward Boolean (可选) macOS Windows - 如果为 true, 传递鼠标移动消息给 Chromium,鼠标相关事件将可用,如 mouseleave。 仅当 ignore </ 0>为 true 时才被使用。 如果 <code>ignore 为 false, 转发始终是禁用的,不管这个值是什么。

忽略窗口内的所有鼠标事件

在此窗口中发生的所有鼠标事件将被传递到此窗口下面的窗口, 但如果此窗口具有焦点, 它仍然会接收键盘事件

win.setContentProtection(enable) macOS Windows

  • enable Boolean

防止窗口内容被其他应用捕获

On macOS it sets the NSWindow’s sharingType to NSWindowSharingNone. On Windows it calls SetWindowDisplayAffinity with WDA_MONITOR.

win.setFocusable(focusable) macOS Windows

  • focusable Boolean

设置窗口是否可聚焦

On macOS it does not remove the focus from the window.

win.setParentWindow(parent)

  • parent BrowserWindow | null

设置 parent 为当前窗口的父窗口. 为null时表示将当前窗口转为顶级窗口

win.getParentWindow()

返回 BrowserWindow - 父窗口.

win.getChildWindows()

返回 BrowserWindow[] - 首页的子窗口.

win.setAutoHideCursor(autoHide) macOS

  • autoHide Boolean

设置输入时是否隐藏光标

win.selectPreviousTab() macOS

当启用本地选项卡,并且窗口中有另一个标签时,选择上一个选项卡。

win.selectNextTab() macOS

当启用本地选项卡,并且窗口中有另一个标签时,选择下一个选项卡。

win.mergeAllWindows() macOS

当启用本地选项卡并且存在多个打开窗口时,将所有窗口合并到一个带有多个选项卡的窗口中。

win.moveTabToNewWindow() macOS

如果启用了本机选项卡并且当前窗口中有多个选项卡,则将当前选项卡移动到新窗口中。

win.toggleTabBar() macOS

如果启用了本机选项卡并且当前窗口中只有一个选项卡,则切换选项卡栏是否可见。

win.addTabbedWindow(browserWindow) macOS

  • browserWindow BrowserWindow

在该窗口中添加一个窗口作为选项卡,位于窗口实例的选项卡之后。

win.setVibrancy(type) macOS

  • type String | null - Can be appearance-based, light, dark, titlebar, selection, menu, popover, sidebar, medium-light, ultra-dark, header, sheet, window, hud, fullscreen-ui, tooltip, content, under-window, or under-page. 更多详细信息,请查阅 macOS documentation

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

Note that appearance-based, light, dark, medium-light, and ultra-dark have been deprecated and will be removed in an upcoming version of macOS.

win.setTrafficLightPosition(position) macOS

Set a custom position for the traffic light buttons. Can only be used with titleBarStyle set to hidden.

win.getTrafficLightPosition() macOS

Returns Point - The current position for the traffic light buttons. Can only be used with titleBarStyle set to hidden.

win.setTouchBar(touchBar) macOS

  • touchBar TouchBar | null

设置窗口的触摸条布局 设置为 nullundefined将清除触摸条. 此方法只有在macOS 10.12.1+且设备支持触摸条TouchBar时可用.

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

win.setBrowserView(browserView) 实验

  • browserView BrowserView | null - Attach browserView to win. If there are other BrowserViews attached, they will be removed from this window.

win.getBrowserView() 实验功能

Returns BrowserView | null - The BrowserView attached to win. Returns null if one is not attached. Throws an error if multiple BrowserViews are attached.

win.addBrowserView(browserView) 实验

Replacement API for setBrowserView supporting work with multi browser views.

win.removeBrowserView(browserView) 实验

win.getBrowserViews() 实验功能

Returns BrowserView[] - an array of all BrowserViews that have been attached with addBrowserView or setBrowserView.

注意: BrowserView 的 API目前为实验性质,可能会更改或删除。