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authorkumavis <aaron@kumavis.me>2017-01-12 11:04:19 +0800
committerkumavis <aaron@kumavis.me>2017-01-12 11:31:21 +0800
commit8012ede12698477692b80769781096b559159a32 (patch)
tree17f75325da8f5d0abf2c1f37fa0573320730b6a7 /app/scripts/lib/remote-store.js
parentcc5e9aca4fa2a1e78c49be680405d93ac918bccf (diff)
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background - introduce ObservableStore
Diffstat (limited to 'app/scripts/lib/remote-store.js')
-rw-r--r--app/scripts/lib/remote-store.js97
1 files changed, 0 insertions, 97 deletions
diff --git a/app/scripts/lib/remote-store.js b/app/scripts/lib/remote-store.js
deleted file mode 100644
index fbfab7bad..000000000
--- a/app/scripts/lib/remote-store.js
+++ /dev/null
@@ -1,97 +0,0 @@
-const Dnode = require('dnode')
-const inherits = require('util').inherits
-
-module.exports = {
- HostStore: HostStore,
- RemoteStore: RemoteStore,
-}
-
-function BaseStore (initState) {
- this._state = initState || {}
- this._subs = []
-}
-
-BaseStore.prototype.set = function (key, value) {
- throw Error('Not implemented.')
-}
-
-BaseStore.prototype.get = function (key) {
- return this._state[key]
-}
-
-BaseStore.prototype.subscribe = function (fn) {
- this._subs.push(fn)
- var unsubscribe = this.unsubscribe.bind(this, fn)
- return unsubscribe
-}
-
-BaseStore.prototype.unsubscribe = function (fn) {
- var index = this._subs.indexOf(fn)
- if (index !== -1) this._subs.splice(index, 1)
-}
-
-BaseStore.prototype._emitUpdates = function (state) {
- this._subs.forEach(function (handler) {
- handler(state)
- })
-}
-
-//
-// host
-//
-
-inherits(HostStore, BaseStore)
-function HostStore (initState, opts) {
- BaseStore.call(this, initState)
-}
-
-HostStore.prototype.set = function (key, value) {
- this._state[key] = value
- process.nextTick(this._emitUpdates.bind(this, this._state))
-}
-
-HostStore.prototype.createStream = function () {
- var dnode = Dnode({
- // update: this._didUpdate.bind(this),
- })
- dnode.on('remote', this._didConnect.bind(this))
- return dnode
-}
-
-HostStore.prototype._didConnect = function (remote) {
- this.subscribe(function (state) {
- remote.update(state)
- })
- remote.update(this._state)
-}
-
-//
-// remote
-//
-
-inherits(RemoteStore, BaseStore)
-function RemoteStore (initState, opts) {
- BaseStore.call(this, initState)
- this._remote = null
-}
-
-RemoteStore.prototype.set = function (key, value) {
- this._remote.set(key, value)
-}
-
-RemoteStore.prototype.createStream = function () {
- var dnode = Dnode({
- update: this._didUpdate.bind(this),
- })
- dnode.once('remote', this._didConnect.bind(this))
- return dnode
-}
-
-RemoteStore.prototype._didConnect = function (remote) {
- this._remote = remote
-}
-
-RemoteStore.prototype._didUpdate = function (state) {
- this._state = state
- this._emitUpdates(state)
-}