discourse/plugins/poll/assets/javascripts/widgets/discourse-poll.js.es6

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