mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-11-24 19:10:22 +01:00
99 lines
3.4 KiB
JavaScript
99 lines
3.4 KiB
JavaScript
const ObservableStore = require('obs-store')
|
|
const extend = require('xtend')
|
|
|
|
class AddressBookController {
|
|
|
|
|
|
/**
|
|
* Controller in charge of managing the address book functionality from the
|
|
* recipients field on the send screen. Manages a history of all saved
|
|
* addresses and all currently owned addresses.
|
|
*
|
|
* @typedef {Object} AddressBookController
|
|
* @param {object} opts Overrides the defaults for the initial state of this.store
|
|
* @property {array} opts.initState initializes the the state of the AddressBookController. Can contain an
|
|
* addressBook property to initialize the addressBook array
|
|
* @property {object} opts.preferencesStore the {@code PreferencesController} store
|
|
* @property {object} store The the store of the current users address book
|
|
* @property {array} store.addressBook An array of addresses and nicknames. These are set by the user when sending
|
|
* to a new address.
|
|
*
|
|
*/
|
|
constructor ({initState, preferencesStore}) {
|
|
this.store = new ObservableStore(extend({
|
|
addressBook: [],
|
|
}, initState))
|
|
this._preferencesStore = preferencesStore
|
|
}
|
|
|
|
//
|
|
// PUBLIC METHODS
|
|
//
|
|
|
|
/**
|
|
* Sets a new address book in store by accepting a new address and nickname.
|
|
*
|
|
* @param {string} address A hex address of a new account that the user is sending to.
|
|
* @param {string} name The name the user wishes to associate with the new account
|
|
* @returns {Promise<void>} Promise resolves with undefined
|
|
*
|
|
*/
|
|
setAddressBook (address, name) {
|
|
return this._addToAddressBook(address, name)
|
|
.then((addressBook) => {
|
|
this.store.updateState({
|
|
addressBook,
|
|
})
|
|
return Promise.resolve()
|
|
})
|
|
}
|
|
|
|
/**
|
|
* Performs the logic to add the address and name into the address book. The pushed object is an object of two
|
|
* fields. Current behavior does not set an upper limit to the number of addresses.
|
|
*
|
|
* @private
|
|
* @param {string} address A hex address of a new account that the user is sending to.
|
|
* @param {string} name The name the user wishes to associate with the new account
|
|
* @returns {Promise<array>} Promises the updated addressBook array
|
|
*
|
|
*/
|
|
_addToAddressBook (address, name) {
|
|
const addressBook = this._getAddressBook()
|
|
const {identities} = this._preferencesStore.getState()
|
|
|
|
const addressBookIndex = addressBook.findIndex((element) => { return element.address.toLowerCase() === address.toLowerCase() || element.name === name })
|
|
const identitiesIndex = Object.keys(identities).findIndex((element) => { return element.toLowerCase() === address.toLowerCase() })
|
|
// trigger this condition if we own this address--no need to overwrite.
|
|
if (identitiesIndex !== -1) {
|
|
return Promise.resolve(addressBook)
|
|
// trigger this condition if we've seen this address before--may need to update nickname.
|
|
} else if (addressBookIndex !== -1) {
|
|
addressBook.splice(addressBookIndex, 1)
|
|
} else if (addressBook.length > 15) {
|
|
addressBook.shift()
|
|
}
|
|
|
|
|
|
addressBook.push({
|
|
address: address,
|
|
name,
|
|
})
|
|
return Promise.resolve(addressBook)
|
|
}
|
|
|
|
/**
|
|
* Internal method to get the address book. Current persistence behavior should not require that this method be
|
|
* called from the UI directly.
|
|
*
|
|
* @private
|
|
* @returns {array} The addressBook array from the store.
|
|
*
|
|
*/
|
|
_getAddressBook () {
|
|
return this.store.getState().addressBook
|
|
}
|
|
}
|
|
|
|
module.exports = AddressBookController
|