framework/ember/app/views/discussion.js
2015-01-30 13:05:42 +10:30

103 lines
3.5 KiB
JavaScript

import Ember from 'ember';
import TaggedArray from '../utils/tagged-array';
import ActionButton from '../components/ui/controls/action-button';
import DropdownSplit from '../components/ui/controls/dropdown-split';
import StreamScrubber from '../components/discussions/stream-scrubber';
var $ = Ember.$;
export default Ember.View.extend(Ember.Evented, {
sidebarItems: null,
loadingNumber: false,
didInsertElement: function() {
// Create and populate an array of items to be rendered in the sidebar.
var sidebarItems = TaggedArray.create();
this.trigger('populateSidebar', sidebarItems);
this.set('sidebarItems', sidebarItems);
// By this stage the discussion controller has initialized the post
// stream object, and there may or may not be posts loaded into it.
// Either way, we want to tell our stream content component to jump
// down to the start position specified in the controller's query
// params.
this.loadStreamContentForNewDiscussion();
// For that matter, whenever the controller's start query param
// changes, we want to tell our stream content component to jump down
// to it.
this.get('controller').on('startWasChanged', this, this.goToNumber);
this.get('streamContent').on('loadedNumber', this, this.loadedNumber);
},
willDestroyElement: function() {
this.get('controller').off('startWasChanged', this, this.goToNumber);
this.get('streamContent').off('loadedNumber', this, this.loadedNumber);
},
goToNumber: function(start) {
// We can only proceed if the controller has loaded the discussion
// details and the view has been rendered.
if (this.get('controller.loaded') && this.get('streamContent') && ! this.get('loadingNumber')) {
this.get('streamContent').send('goToNumber', start);
this.set('loadingNumber', true);
}
},
loadedNumber: function() {
this.set('loadingNumber', false);
},
// ------------------------------------------------------------------------
// OBSERVERS
// ------------------------------------------------------------------------
// Whenever the controller has switched out the old discussion model for a
// new one, we want to begin loading posts according to the ?start param.
loadStreamContentForNewDiscussion: function() {
if (this.get('controller.loaded')) {
this.goToNumber(this.get('controller.start'));
}
}.observes('controller.loaded'),
// Whenever the model's title changes, we want to update that document's
// title the reflect the new title.
updateTitle: function() {
this.set('controller.controllers.application.pageTitle', this.get('controller.model.title'));
}.observes('controller.model.title'),
// ------------------------------------------------------------------------
// LISTENERS
// ------------------------------------------------------------------------
populateSidebarDefault: function(sidebar) {
var controls = TaggedArray.create();
this.trigger('populateControls', controls);
sidebar.pushObjectWithTag(DropdownSplit.create({
items: controls,
icon: 'reply',
buttonClass: 'btn-primary'
}), 'controls');
sidebar.pushObjectWithTag(StreamScrubber.create({
streamContent: this.get('streamContent')
}), 'scrubber');
}.on('populateSidebar'),
populateControlsDefault: function(controls) {
var view = this;
var reply = ActionButton.create({
label: 'Reply',
icon: 'reply',
action: function() {
view.get('streamContent').send('goToLast');
view.get('controller').send('reply');
},
});
controls.pushObjectWithTag(reply, 'reply');
}.on('populateControls')
});