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40 lines
1.2 KiB
JavaScript
40 lines
1.2 KiB
JavaScript
import evenRound from "discourse/plugins/poll/lib/even-round";
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import computed from "ember-addons/ember-computed-decorators";
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export default Em.Component.extend({
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tagName: "ul",
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classNames: ["results"],
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@computed("poll.voters", "poll.type", "poll.options.[]")
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options(voters, type) {
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const options = this.get("poll.options").slice(0).sort((a, b) => {
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return b.get("votes") - a.get("votes");
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});
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let percentages = voters === 0 ?
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Array(options.length).fill(0) :
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_.map(options, o => 100 * o.get("votes") / voters);
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// properly round percentages
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if (type === "multiple") {
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// when the poll is multiple choices, just "round down"
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percentages = percentages.map(p => Math.floor(p));
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} else {
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// when the poll is single choice, adds up to 100%
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percentages = evenRound(percentages);
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}
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options.forEach((option, i) => {
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const percentage = percentages[i];
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const style = new Handlebars.SafeString(`width: ${percentage}%`);
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option.setProperties({
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percentage,
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style,
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title: I18n.t("poll.option_title", { count: option.get("votes") })
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});
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});
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return options;
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}
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});
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