discourse/plugins/poll/assets/javascripts/widgets/discourse-poll.js.es6
2017-02-03 12:09:30 +08:00

580 lines
15 KiB
JavaScript

import { createWidget } from 'discourse/widgets/widget';
import { h } from 'virtual-dom';
import { iconNode } from 'discourse/helpers/fa-icon-node';
import RawHtml from 'discourse/widgets/raw-html';
import { ajax } from 'discourse/lib/ajax';
import evenRound from "discourse/plugins/poll/lib/even-round";
import { avatarFor } from 'discourse/widgets/post';
import round from "discourse/lib/round";
function optionHtml(option) {
return new RawHtml({ html: `<span>${option.html}</span>` });
}
function fetchVoters(payload) {
return ajax("/polls/voters.json", {
type: "get",
data: payload
}).catch(() => {
bootbox.alert(I18n.t('poll.error_while_fetching_voters'));
});
}
createWidget('discourse-poll-option', {
tagName: 'li',
buildAttributes(attrs) {
return { 'data-poll-option-id': attrs.option.id };
},
html(attrs) {
const result = [];
const { option, vote } = attrs;
const chosen = vote.indexOf(option.id) !== -1;
if (attrs.isMultiple) {
result.push(iconNode(chosen ? 'check-square-o' : 'square-o'));
} else {
result.push(iconNode(chosen ? 'dot-circle-o' : 'circle-o'));
}
result.push(' ');
result.push(optionHtml(option));
return result;
},
click(e) {
if ($(e.target).closest("a").length === 0) {
this.sendWidgetAction('toggleOption', this.attrs.option);
}
}
});
createWidget('discourse-poll-load-more', {
tagName: 'div.poll-voters-toggle-expand',
buildKey: attrs => `${attrs.id}-load-more`,
defaultState() {
return { loading: false };
},
html(attrs, state) {
return state.loading ? h('div.spinner.small') : h('a', iconNode('chevron-down'));
},
click() {
const { state } = this;
if (state.loading) { return; }
state.loading = true;
return this.sendWidgetAction('loadMore').finally(() => state.loading = false);
}
});
createWidget('discourse-poll-voters', {
tagName: 'ul.poll-voters-list',
buildKey: attrs => attrs.id(),
defaultState() {
return {
loaded: 'new',
pollVoters: [],
offset: 1,
};
},
fetchVoters() {
const { attrs, state } = this;
if (state.loaded === 'loading') { return; }
state.loaded = 'loading';
return fetchVoters({
post_id: attrs.postId,
poll_name: attrs.pollName,
option_id: attrs.optionId,
offset: state.offset
}).then(result => {
state.loaded = 'loaded';
state.offset += 1;
const pollResult = result[attrs.pollName];
const newVoters = attrs.pollType === 'number' ? pollResult : pollResult[attrs.optionId];
state.pollVoters = state.pollVoters.concat(newVoters);
this.scheduleRerender();
});
},
loadMore() {
return this.fetchVoters();
},
html(attrs, state) {
if (attrs.pollVoters && state.loaded === 'new') {
state.pollVoters = attrs.pollVoters;
}
const contents = state.pollVoters.map(user => {
return h('li', [avatarFor('tiny', {
username: user.username,
template: user.avatar_template
}), ' ']);
});
if (state.pollVoters.length < attrs.totalVotes) {
contents.push(this.attach('discourse-poll-load-more', { id: attrs.id() }));
}
return h('div.poll-voters', contents);
}
});
createWidget('discourse-poll-standard-results', {
tagName: 'ul.results',
buildKey: attrs => `${attrs.id}-standard-results`,
defaultState() {
return {
loaded: 'new'
};
},
fetchVoters() {
const { attrs, state } = this;
if (state.loaded === 'new') {
fetchVoters({
post_id: attrs.post.id,
poll_name: attrs.poll.get('name')
}).then(result => {
state.voters = result[attrs.poll.get('name')];
state.loaded = 'loaded';
this.scheduleRerender();
});
}
},
html(attrs, state) {
const { poll } = attrs;
const options = poll.get('options');
if (options) {
const voters = poll.get('voters');
const isPublic = poll.get('public');
const ordered = _.clone(options).sort((a, b) => {
if (a.votes < b.votes) {
return 1;
} else if (a.votes === b.votes) {
if (a.html < b.html) {
return -1;
} else {
return 1;
}
} else {
return -1;
}
});
const percentages = voters === 0 ?
Array(ordered.length).fill(0) :
ordered.map(o => 100 * o.votes / voters);
const rounded = attrs.isMultiple ? percentages.map(Math.floor) : evenRound(percentages);
if (isPublic) this.fetchVoters();
return ordered.map((option, idx) => {
const contents = [];
const per = rounded[idx].toString();
const chosen = (attrs.vote || []).includes(option.id);
contents.push(h('div.option',
h('p', [ h('span.percentage', `${per}%`), optionHtml(option) ])
));
contents.push(h('div.bar-back',
h('div.bar', { attributes: { style: `width:${per}%` }})
));
if (isPublic) {
contents.push(this.attach('discourse-poll-voters', {
id: () => `poll-voters-${option.id}`,
postId: attrs.post.id,
optionId: option.id,
pollName: poll.get('name'),
totalVotes: option.votes,
pollVoters: (state.voters && state.voters[option.id]) || []
}));
}
return h('li', { className: `${chosen ? 'chosen' : ''}` }, contents);
});
}
}
});
createWidget('discourse-poll-number-results', {
buildKey: attrs => `${attrs.id}-number-results`,
defaultState() {
return {
loaded: 'new'
};
},
fetchVoters() {
const { attrs, state } = this;
if (state.loaded === 'new') {
fetchVoters({
post_id: attrs.post.id,
poll_name: attrs.poll.get('name')
}).then(result => {
state.voters = result[attrs.poll.get('name')];
state.loaded = 'loaded';
this.scheduleRerender();
});
}
},
html(attrs, state) {
const { poll } = attrs;
const isPublic = poll.get('public');
const totalScore = poll.get('options').reduce((total, o) => {
return total + parseInt(o.html, 10) * parseInt(o.votes, 10);
}, 0);
const voters = poll.voters;
const average = voters === 0 ? 0 : round(totalScore / voters, -2);
const averageRating = I18n.t("poll.average_rating", { average });
const results = [h('div.poll-results-number-rating',
new RawHtml({ html: `<span>${averageRating}</span>` }))];
if (isPublic) {
this.fetchVoters();
results.push(this.attach('discourse-poll-voters', {
id: () => `poll-voters-${poll.get('name')}`,
totalVotes: poll.get('voters'),
pollVoters: state.voters || [],
postId: attrs.post.id,
pollName: poll.get('name'),
pollType: poll.get('type')
}));
}
return results;
}
});
createWidget('discourse-poll-container', {
tagName: 'div.poll-container',
html(attrs) {
const { poll } = attrs;
if (attrs.showResults) {
const type = poll.get('type') === 'number' ? 'number' : 'standard';
return this.attach(`discourse-poll-${type}-results`, attrs);
}
const options = poll.get('options');
if (options) {
return h('ul', options.map(option => {
return this.attach('discourse-poll-option', {
option,
isMultiple: attrs.isMultiple,
vote: attrs.vote
});
}));
}
}
});
createWidget('discourse-poll-info', {
tagName: 'div.poll-info',
multipleHelpText(min, max, options) {
if (max > 0) {
if (min === max) {
if (min > 1) {
return I18n.t("poll.multiple.help.x_options", { count: min });
}
} else if (min > 1) {
if (max < options) {
return I18n.t("poll.multiple.help.between_min_and_max_options", { min, max });
} else {
return I18n.t("poll.multiple.help.at_least_min_options", { count: min });
}
} else if (max <= options) {
return I18n.t("poll.multiple.help.up_to_max_options", { count: max });
}
}
},
html(attrs) {
const { poll } = attrs;
const count = poll.get('voters');
const result = [h('p', [
h('span.info-number', count.toString()),
h('span.info-text', I18n.t('poll.voters', { count }))
])];
if (attrs.isMultiple) {
if (attrs.showResults) {
const totalVotes = poll.get('options').reduce((total, o) => {
return total + parseInt(o.votes, 10);
}, 0);
result.push(h('p', [
h('span.info-number', totalVotes.toString()),
h('span.info-text', I18n.t("poll.total_votes", { count: totalVotes }))
]));
} else {
const help = this.multipleHelpText(attrs.min, attrs.max, poll.get('options.length'));
if (help) {
result.push(new RawHtml({ html: `<span>${help}</span>` }));
}
}
}
if (!attrs.showResults && attrs.poll.get('public')) {
result.push(h('p', I18n.t('poll.public.title')));
}
return result;
}
});
createWidget('discourse-poll-buttons', {
tagName: 'div.poll-buttons',
html(attrs) {
const results = [];
const { poll, post } = attrs;
const topicArchived = post.get('topic.archived');
const isClosed = poll.get('status') === 'closed';
const hideResultsDisabled = isClosed || topicArchived;
if (attrs.isMultiple && !hideResultsDisabled) {
const castVotesDisabled = !attrs.canCastVotes;
results.push(this.attach('button', {
className: `btn cast-votes ${castVotesDisabled ? '' : 'btn-primary'}`,
label: 'poll.cast-votes.label',
title: 'poll.cast-votes.title',
disabled: castVotesDisabled,
action: 'castVotes'
}));
results.push(' ');
}
if (attrs.showResults) {
results.push(this.attach('button', {
className: 'btn toggle-results',
label: 'poll.hide-results.label',
title: 'poll.hide-results.title',
icon: 'eye-slash',
disabled: hideResultsDisabled,
action: 'toggleResults'
}));
} else {
results.push(this.attach('button', {
className: 'btn toggle-results',
label: 'poll.show-results.label',
title: 'poll.show-results.title',
icon: 'eye',
disabled: poll.get('voters') === 0,
action: 'toggleResults'
}));
}
if (this.currentUser &&
(this.currentUser.get("id") === post.get('user_id') ||
this.currentUser.get("staff")) &&
!topicArchived) {
if (isClosed) {
results.push(this.attach('button', {
className: 'btn toggle-status',
label: 'poll.open.label',
title: 'poll.open.title',
icon: 'unlock-alt',
action: 'toggleStatus'
}));
} else {
results.push(this.attach('button', {
className: 'btn toggle-status btn-danger',
label: 'poll.close.label',
title: 'poll.close.title',
icon: 'lock',
action: 'toggleStatus'
}));
}
}
return results;
}
});
export default createWidget('discourse-poll', {
tagName: 'div.poll',
buildKey: attrs => attrs.id,
buildAttributes(attrs) {
const { poll } = attrs;
return {
"data-poll-type": poll.get('type'),
"data-poll-name": poll.get('name'),
"data-poll-status": poll.get('status'),
"data-poll-public": poll.get('public')
};
},
defaultState(attrs) {
const { poll, post } = attrs;
return { loading: false,
showResults: poll.get('isClosed') || post.get('topic.archived') };
},
html(attrs, state) {
const { showResults } = state;
const newAttrs = jQuery.extend({}, attrs, {
showResults,
canCastVotes: this.canCastVotes(),
min: this.min(),
max: this.max()
});
return h('div', [
this.attach('discourse-poll-container', newAttrs),
this.attach('discourse-poll-info', newAttrs),
this.attach('discourse-poll-buttons', newAttrs)
]);
},
isClosed() {
return this.attrs.poll.get('status') === "closed";
},
min() {
let min = parseInt(this.attrs.poll.min, 10);
if (isNaN(min) || min < 1) { min = 1; }
return min;
},
max() {
let max = parseInt(this.attrs.poll.max, 10);
const numOptions = this.attrs.poll.options.length;
if (isNaN(max) || max > numOptions) { max = numOptions; }
return max;
},
canCastVotes() {
const { state, attrs } = this;
if (this.isClosed() || state.showResults || state.loading) {
return false;
}
const selectedOptionCount = attrs.vote.length;
if (attrs.isMultiple) {
return selectedOptionCount >= this.min() && selectedOptionCount <= this.max();
}
return selectedOptionCount > 0;
},
toggleStatus() {
const { state, attrs } = this;
const { poll } = attrs;
const isClosed = poll.get('status') === 'closed';
bootbox.confirm(
I18n.t(isClosed ? "poll.open.confirm" : "poll.close.confirm"),
I18n.t("no_value"),
I18n.t("yes_value"),
confirmed => {
if (confirmed) {
state.loading = true;
const status = isClosed ? "open" : "closed";
ajax("/polls/toggle_status", {
type: "PUT",
data: {
post_id: attrs.post.get('id'),
poll_name: poll.get('name'),
status,
}
}).then(() => {
poll.set('status', status);
this.scheduleRerender();
}).catch(() => {
bootbox.alert(I18n.t("poll.error_while_toggling_status"));
}).finally(() => {
state.loading = false;
});
}
}
);
},
toggleResults() {
this.state.showResults = !this.state.showResults;
},
showLogin() {
const appRoute = this.register.lookup('route:application');
appRoute.send('showLogin');
},
toggleOption(option) {
if (this.isClosed()) { return; }
if (!this.currentUser) { this.showLogin(); }
const { attrs } = this;
const { vote } = attrs;
const chosenIdx = vote.indexOf(option.id);
if (!attrs.isMultiple) {
vote.length = 0;
}
if (chosenIdx !== -1) {
vote.splice(chosenIdx, 1);
} else {
vote.push(option.id);
}
if (!attrs.isMultiple) {
return this.castVotes();
}
},
castVotes() {
if (!this.canCastVotes()) { return; }
if (!this.currentUser) { return this.showLogin(); }
const { attrs, state } = this;
state.loading = true;
return ajax("/polls/vote", {
type: "PUT",
data: {
post_id: attrs.post.id,
poll_name: attrs.poll.name,
options: attrs.vote
}
}).then(() => {
state.showResults = true;
}).catch(() => {
bootbox.alert(I18n.t("poll.error_while_casting_votes"));
}).finally(() => {
state.loading = false;
});
}
});