electron/lib/browser/api/menu-item.js

84 lines
2.6 KiB
JavaScript

'use strict'
const roles = require('@electron/internal/browser/api/menu-item-roles')
let nextCommandId = 0
const MenuItem = function (options) {
const { Menu } = require('electron')
// Preserve extra fields specified by user
for (const key in options) {
if (!(key in this)) this[key] = options[key]
}
if (typeof this.role === 'string' || this.role instanceof String) {
this.role = this.role.toLowerCase()
}
this.submenu = this.submenu || roles.getDefaultSubmenu(this.role)
if (this.submenu != null && this.submenu.constructor !== Menu) {
this.submenu = Menu.buildFromTemplate(this.submenu)
}
if (this.type == null && this.submenu != null) {
this.type = 'submenu'
}
if (this.type === 'submenu' && (this.submenu == null || this.submenu.constructor !== Menu)) {
throw new Error('Invalid submenu')
}
this.overrideReadOnlyProperty('type', 'normal')
this.overrideReadOnlyProperty('role')
this.overrideReadOnlyProperty('accelerator')
this.overrideReadOnlyProperty('icon')
this.overrideReadOnlyProperty('submenu')
this.overrideProperty('label', roles.getDefaultLabel(this.role))
this.overrideProperty('sublabel', '')
this.overrideProperty('enabled', true)
this.overrideProperty('visible', true)
this.overrideProperty('checked', false)
if (!MenuItem.types.includes(this.type)) {
throw new Error(`Unknown menu item type: ${this.type}`)
}
this.overrideReadOnlyProperty('commandId', ++nextCommandId)
const click = options.click
this.click = (event, focusedWindow, focusedWebContents) => {
// Manually flip the checked flags when clicked.
if (this.type === 'checkbox' || this.type === 'radio') {
this.checked = !this.checked
}
if (!roles.execute(this.role, focusedWindow, focusedWebContents)) {
if (typeof click === 'function') {
click(this, focusedWindow, event)
} else if (typeof this.selector === 'string' && process.platform === 'darwin') {
Menu.sendActionToFirstResponder(this.selector)
}
}
}
}
MenuItem.types = ['normal', 'separator', 'submenu', 'checkbox', 'radio']
MenuItem.prototype.getDefaultRoleAccelerator = function () {
return roles.getDefaultAccelerator(this.role)
}
MenuItem.prototype.overrideProperty = function (name, defaultValue = null) {
if (this[name] == null) {
this[name] = defaultValue
}
}
MenuItem.prototype.overrideReadOnlyProperty = function (name, defaultValue) {
this.overrideProperty(name, defaultValue)
Object.defineProperty(this, name, {
enumerable: true,
writable: false,
value: this[name]
})
}
module.exports = MenuItem