framework/ember/app/controllers/discussion.js

131 lines
5.1 KiB
JavaScript
Raw Normal View History

2014-12-20 14:26:46 +08:00
import Ember from 'ember';
import PostStream from '../models/post-stream';
import ComposerReply from '../components/discussions/composer-reply';
import ActionButton from '../components/ui/controls/action-button';
2015-02-03 14:32:46 +08:00
import AlertMessage from '../components/alert-message';
2014-12-20 14:26:46 +08:00
export default Ember.ObjectController.extend(Ember.Evented, {
needs: ['application', 'composer'],
queryParams: ['start'],
start: '1',
searchQuery: '',
loaded: false,
2015-01-07 14:53:27 +08:00
stream: null,
2014-12-20 14:26:46 +08:00
setup: function(discussion) {
this.set('model', discussion);
// Set up the post stream object. It needs to know about the discussion
// its representing the posts for, and we also need to inject the Ember
// data store.
var stream = PostStream.create();
2015-01-07 14:53:27 +08:00
stream.set('discussion', discussion);
stream.set('store', this.get('store'));
this.set('stream', stream);
2014-12-20 14:26:46 +08:00
// Next, we need to load a list of the discussion's post IDs into the
// post stream object. If we don't already have this information, we'll
// need to reload the discussion model.
var promise = discussion.get('posts') ? Ember.RSVP.resolve(discussion) : discussion.reload();
// When we know we have the post IDs, we can set up the post stream with
// them. Then the view will trigger the stream to load as it sees fit.
2014-12-20 14:26:46 +08:00
var controller = this;
promise.then(function(discussion) {
2015-01-07 14:53:27 +08:00
stream.setup(discussion.get('postIds'));
2014-12-20 14:26:46 +08:00
controller.set('loaded', true);
});
},
2015-02-03 14:32:46 +08:00
// Save a reply. This may be called by a composer-reply component that was
// set up on a different discussion, so we require a discussion model to
// be explicitly passed rather than using the controller's implicit one.
saveReply: function(discussion, content) {
var controller = this;
var composer = this.get('controllers.composer');
var stream = this.get('stream');
composer.set('content.loading', true);
2015-02-03 14:32:46 +08:00
controller.get('controllers.application').send('clearAlerts');
var post = this.store.createRecord('post', {
content: content,
discussion: discussion
});
2015-02-03 14:32:46 +08:00
return post.save().then(function(post) {
composer.send('hide');
// If we're currently viewing the discussion which this reply was
// made in, then we can add the post to the end of the post
// stream.
discussion.set('posts', discussion.get('posts')+','+post.get('id'));
if (discussion == controller.get('model')) {
2015-02-03 14:32:46 +08:00
stream.set('ids', discussion.get('postIds'));
stream.addPostToEnd(post);
2015-02-03 14:32:46 +08:00
} else {
// Otherwise, we'll create an alert message to inform the user
// that their reply has been posted, containing a button which
// will transition to their new post when clicked.
var message = AlertMessage.create({
type: 'success',
message: 'Your reply was posted.'
});
message.on('populateControls', function(controls) {
controls.pushObjectWithTag(ActionButton.extend({
label: 'View',
action: function() {
controller.transitionToRoute('discussion', post.get('discussion'), {queryParams: {start: post.get('number')}});
message.send('dismiss');
}
}), 'view');
});
controller.get('controllers.application').send('alert', message);
}
2015-02-03 14:32:46 +08:00
},
function(reason) {
var message = AlertMessage.create({
type: 'warning',
message: reason.errors[0].detail
});
controller.get('controllers.application').send('alert', message);
})
.finally(function() {
composer.set('content.loading', false);
});
},
2014-12-20 14:26:46 +08:00
actions: {
reply: function() {
var controller = this;
var discussion = this.get('model');
var composer = this.get('controllers.composer');
2015-02-03 14:32:46 +08:00
// If the composer is already set up for this discussion, then we
// don't need to change its content - we can just show it.
if (composer.get('content.discussion') != discussion) {
composer.switchContent(ComposerReply.create({
user: controller.get('session.user'),
discussion: discussion,
submit: function(value) {
2015-02-03 14:32:46 +08:00
controller.saveReply(discussion, value);
}
}));
}
2015-02-03 14:32:46 +08:00
composer.send('show');
2014-12-20 14:26:46 +08:00
},
// This action is called when the start position of the discussion
// currently being viewed changes (i.e. when the user scrolls up/down
// the post stream.)
updateStart: function(start) {
this.set('start', start);
2014-12-20 14:26:46 +08:00
}
}
});