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-rw-r--r--public/javascripts/url.js67
1 files changed, 67 insertions, 0 deletions
diff --git a/public/javascripts/url.js b/public/javascripts/url.js
new file mode 100644
index 0000000..17ab7c8
--- /dev/null
+++ b/public/javascripts/url.js
@@ -0,0 +1,67 @@
+/* global USERS FLAGS */
+
+const EventEmitter = require('events')
+
+const self = new EventEmitter()
+
+self._getPageTitle = function (selectedUser) {
+ let ret
+
+ if (selectedUser == null) {
+ ret = `Metis Rooster`
+ } else {
+ ret = `Metis Rooster - ${selectedUser.value}`
+ }
+
+ if (FLAGS.indexOf('BETA') !== -1) {
+ ret = `BETA ${ret}`
+ }
+
+ return ret
+}
+
+self._getPageURL = function (selectedUser) {
+ return `/${selectedUser.type}/${selectedUser.value}`
+}
+
+self.push = function (selectedUser, push) {
+ if (push == null) push = true
+ const pageTitle = self._getPageTitle(selectedUser)
+ const pageURL = self._getPageURL(selectedUser)
+ if (push) {
+ window.history.pushState(selectedUser, pageTitle, pageURL)
+ } else {
+ window.history.replaceState(selectedUser, pageTitle, pageURL)
+ }
+}
+
+self.update = function (selectedUser) {
+ document.title = self._getPageTitle(selectedUser)
+}
+
+self.hasSelectedUser = function () {
+ const pageUrl = window.location.pathname
+ return /^\/s\/|^\/t\/|^\/r\/|^\/c\//.test(pageUrl)
+}
+
+self.getSelectedUser = function () {
+ const pageUrl = window.location.pathname
+ const pageUrlData = pageUrl.split('/')
+ const type = pageUrlData[1]
+ const value = pageUrlData[2]
+
+ const user = USERS.filter(function (user) {
+ return user.type === type &&
+ user.value === value
+ })[0]
+
+ return user
+}
+
+self._handleUpdate = function (event) {
+ self.emit('update', event.state)
+}
+
+window.addEventListener('popstate', self._handleUpdate)
+
+module.exports = self