Poll WIP (#231):

* front end poll WIP
* backend fix

conversejs/custom/plugins/poll/index.js

@@ -4,10 +4,13 @@
 
 import { _converse, converse } from '../../../src/headless/core.js'
 import { getHeadingButtons } from './utils.js'
-// import { XMLNS_POLL } from './constants.js'
+import { POLL_MESSAGE_TAG, POLL_QUESTION_TAG, POLL_CHOICE_TAG } from './constants.js'
 import './modals/poll-form.js'
+import './components/poll-view.js'
 import './components/poll-form-view.js'
 
+const { sizzle } = converse.env
+
 converse.plugins.add('livechat-converse-poll', {
   dependencies: ['converse-muc', 'converse-disco'],
 
@@ -19,5 +22,64 @@ converse.plugins.add('livechat-converse-poll', {
     // })
     // adding the poll actions in the MUC heading buttons:
     _converse.api.listen.on('getHeadingButtons', getHeadingButtons)
+
+    _converse.api.listen.on('parseMUCMessage', (stanza, attrs) => {
+      // Checking if there is any poll data in the message.
+      const poll = sizzle(POLL_MESSAGE_TAG, stanza)?.[0]
+      if (!poll) {
+        return attrs
+      }
+      const question = sizzle(POLL_QUESTION_TAG, poll)?.[0]
+      const choices = sizzle(POLL_CHOICE_TAG, poll)
+      if (!question || !choices.length) {
+        return attrs
+      }
+
+      const endDate = poll.hasAttribute('end')
+        ? new Date(1000 * parseInt(poll.getAttribute('end')))
+        : null
+
+      const currentPoll = {
+        question: question.textContent,
+        id: poll.getAttribute('id'),
+        votes: parseInt(poll.getAttribute('votes') ?? 0),
+        over: poll.hasAttribute('over'),
+        endDate: endDate,
+        choices: choices.map(c => {
+          return {
+            label: c.textContent,
+            choice: c.getAttribute('choice'),
+            votes: parseInt(c.getAttribute('votes') ?? 0)
+          }
+        })
+      }
+
+      return Object.assign(
+        attrs,
+        {
+          current_poll: currentPoll
+        }
+      )
+    })
+  },
+
+  overrides: {
+    ChatRoom: {
+      onMessage: function onMessage (attrs) {
+        if (!attrs.current_poll) {
+          return this.__super__.onMessage(attrs)
+        }
+        // We intercept poll messages, so they won't show up in the chat as classic messages.
+        if (attrs.is_delayed) {
+          console.info('Got a delayed poll message, just dropping')
+          return
+        }
+
+        console.info('Got a poll message, setting it as the current_poll')
+        this.set('current_poll', attrs.current_poll)
+        // this will be displayed by the livechat-converse-muc-poll custom element,
+        // which is inserted in the DOM by the muc.js template overload.
+      }
+    }
   }
 })