mirror of
https://github.com/discourse/discourse.git
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b57b079ff2
This removes all custom controllers and redis/messagebus logic from discourse-presence, and replaces it with core's new PresenceChannel system. All functionality should be retained. This implementation should scale much better to large numbers of users, reduce the number of HTTP requests made by clients, and reduce the volume of messages on the MessageBus. For more information on PresenceChannel, see 31db8352
109 lines
3.1 KiB
JavaScript
109 lines
3.1 KiB
JavaScript
import discourseComputed, {
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observes,
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on,
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} from "discourse-common/utils/decorators";
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import { equal, gt, readOnly, union } from "@ember/object/computed";
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import Component from "@ember/component";
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import { inject as service } from "@ember/service";
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export default Component.extend({
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presence: service(),
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composerPresenceManager: service(),
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@discourseComputed(
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"model.replyingToTopic",
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"model.editingPost",
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"model.whisper",
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"model.composerOpened",
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"isDestroying"
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)
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state(replyingToTopic, editingPost, whisper, composerOpen, isDestroying) {
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if (!composerOpen || isDestroying) {
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return;
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} else if (editingPost) {
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return "edit";
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} else if (whisper) {
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return "whisper";
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} else if (replyingToTopic) {
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return "reply";
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}
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},
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isReply: equal("state", "reply"),
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isEdit: equal("state", "edit"),
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isWhisper: equal("state", "whisper"),
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@discourseComputed("model.topic.id", "isReply", "isWhisper")
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replyChannelName(topicId, isReply, isWhisper) {
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if (topicId && (isReply || isWhisper)) {
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return `/discourse-presence/reply/${topicId}`;
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}
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},
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@discourseComputed("model.topic.id", "isReply", "isWhisper")
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whisperChannelName(topicId, isReply, isWhisper) {
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if (topicId && this.currentUser.staff && (isReply || isWhisper)) {
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return `/discourse-presence/whisper/${topicId}`;
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}
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},
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@discourseComputed("isEdit", "model.post.id")
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editChannelName(isEdit, postId) {
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if (isEdit) {
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return `/discourse-presence/edit/${postId}`;
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}
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},
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_setupChannel(channelKey, name) {
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if (this[channelKey]?.name !== name) {
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this[channelKey]?.unsubscribe();
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if (name) {
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this.set(channelKey, this.presence.getChannel(name));
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this[channelKey].subscribe();
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} else if (this[channelKey]) {
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this.set(channelKey, null);
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}
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}
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},
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@observes("replyChannelName", "whisperChannelName", "editChannelName")
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_setupChannels() {
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this._setupChannel("replyChannel", this.replyChannelName);
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this._setupChannel("whisperChannel", this.whisperChannelName);
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this._setupChannel("editChannel", this.editChannelName);
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},
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replyingUsers: union("replyChannel.users", "whisperChannel.users"),
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editingUsers: readOnly("editChannel.users"),
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@discourseComputed("isReply", "replyingUsers.[]", "editingUsers.[]")
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presenceUsers(isReply, replyingUsers, editingUsers) {
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const users = isReply ? replyingUsers : editingUsers;
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return users
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?.filter((u) => u.id !== this.currentUser.id)
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?.slice(0, this.siteSettings.presence_max_users_shown);
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},
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shouldDisplay: gt("presenceUsers.length", 0),
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@on("didInsertElement")
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subscribe() {
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this._setupChannels();
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},
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@observes("model.reply", "state", "model.post.id", "model.topic.id")
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_contentChanged() {
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if (this.model.reply === "") {
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return;
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}
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const entity = this.state === "edit" ? this.model?.post : this.model?.topic;
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this.composerPresenceManager.notifyState(this.state, entity?.id);
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},
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@on("willDestroyElement")
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closeComposer() {
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this._setupChannels();
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this.composerPresenceManager.leave();
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},
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});
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