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98201ecc24
This PR is the first step towards replacing our `{{user-selector}}` and eventually deprecating and removing it from our codebase. Some of `{{user-selector}}` problems are:
1. It's called `{{user-selector}}`, but in reality in can also select groups and emails.
2. It's an Ember component, yet it doesn't have a handlebars template and uses jQuery to render itself and modify the DOM. An example of this problem is when you want to clear the selected users programmatically, see [this](6c155dba77/app/assets/javascripts/discourse/app/components/user-selector.js (L179-L185)).
3. We now have select kit which does very similar things but a lot better.
This PR introduces `{{email-group-user-chooser}}` which is meant to replace `{{user-selector}}`. It extends select kit and has the same features that `{{user-selector}}` has. `{{user-selector}}` is still used in a few places in core, but they'll all be replaced with the new component in a separate commit.
Once `{{user-selector}}` is not used anywhere in core, it'll be deprecated and then removed after the 2.7 release.
77 lines
2.5 KiB
JavaScript
77 lines
2.5 KiB
JavaScript
import MultiSelectHeaderComponent from "select-kit/components/multi-select/multi-select-header";
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import { computed } from "@ember/object";
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import { gt } from "@ember/object/computed";
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import { isTesting } from "discourse-common/config/environment";
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import layout from "select-kit/templates/components/email-group-user-chooser-header";
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export default MultiSelectHeaderComponent.extend({
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layout,
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classNames: ["email-group-user-chooser-header"],
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hasHiddenItems: gt("hiddenItemsCount", 0),
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shownItems: computed("hiddenItemsCount", function () {
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if (
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this.selectKit.noneItem === this.selectedContent ||
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this.hiddenItemsCount === 0
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) {
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return this.selectedContent;
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}
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return this.selectedContent.slice(
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0,
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this.selectedContent.length - this.hiddenItemsCount
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);
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}),
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hiddenItemsCount: computed(
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"selectedContent.[]",
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"selectKit.options.autoWrap",
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"selectKit.isExpanded",
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function () {
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if (
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!this.selectKit.options.autoWrap ||
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this.selectKit.isExpanded ||
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this.selectedContent === this.selectKit.noneItem ||
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this.selectedContent.length <= 1 ||
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isTesting()
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) {
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return 0;
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} else {
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const selectKitHeaderWidth = this.element.offsetWidth;
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const choices = this.element.querySelectorAll(".selected-name.choice");
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const input = this.element.querySelector(".filter-input");
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const alreadyHidden = this.element.querySelector(".x-more-item");
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if (alreadyHidden) {
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const hiddenCount = parseInt(
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alreadyHidden.getAttribute("data-hidden-count"),
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10
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);
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return (
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hiddenCount +
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(this.selectedContent.length - (choices.length + hiddenCount))
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);
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}
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if (choices.length === 0 && this.selectedContent.length > 0) {
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return 0;
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}
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let total = choices[0].offsetWidth + input.offsetWidth;
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let shownItemsCount = 1;
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let shouldHide = false;
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for (let i = 1; i < choices.length - 1; i++) {
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const currentWidth = choices[i].offsetWidth;
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const nextWidth = choices[i + 1].offsetWidth;
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const ratio =
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(total + currentWidth + nextWidth) / selectKitHeaderWidth;
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if (ratio >= 0.95) {
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shouldHide = true;
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break;
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} else {
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shownItemsCount++;
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total += currentWidth;
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}
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}
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return shouldHide ? choices.length - shownItemsCount : 0;
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}
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}
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),
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});
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