mirror of https://github.com/zulip/zulip.git
117 lines
3.3 KiB
JavaScript
117 lines
3.3 KiB
JavaScript
import $ from "jquery";
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import * as blueslip from "./blueslip";
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import * as message_lists from "./message_lists";
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import * as narrow_state from "./narrow_state";
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import * as poll_widget from "./poll_widget";
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import * as todo_widget from "./todo_widget";
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import * as zform from "./zform";
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const widgets = new Map([
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["poll", poll_widget],
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["todo", todo_widget],
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["zform", zform],
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]);
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export const widget_contents = new Map();
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export function clear_for_testing() {
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widget_contents.clear();
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}
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function set_widget_in_message($row, $widget_elem) {
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const $content_holder = $row.find(".message_content");
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// Avoid adding the $widget_elem if it already exists.
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// This can happen when the app loads in the "Recent topics"
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// view and the user changes the view to "All messages".
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// This is important since jQuery removes all the event handlers
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// on `empty()`ing an element.
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if ($content_holder.find(".widget-content").length === 0) {
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$content_holder.empty().append($widget_elem);
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}
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}
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export function activate(in_opts) {
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const widget_type = in_opts.widget_type;
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const extra_data = in_opts.extra_data;
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const events = in_opts.events;
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const $row = in_opts.$row;
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const message = in_opts.message;
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const post_to_server = in_opts.post_to_server;
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events.shift();
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if (!widgets.has(widget_type)) {
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if (widget_type === "tictactoe") {
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return; // don't warn for deleted legacy widget
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}
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blueslip.warn("unknown widget_type", widget_type);
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return;
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}
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const callback = function (data) {
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post_to_server({
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msg_type: "widget",
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data,
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});
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};
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if ($row.attr("id").startsWith("zhome") && narrow_state.active()) {
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// Don't place widget in a home message row if we are narrowed
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// to active state
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return;
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}
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let $widget_elem = widget_contents.get(message.id);
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if ($widget_elem) {
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set_widget_in_message($row, $widget_elem);
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return;
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}
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// We depend on our widgets to use templates to build
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// the HTML that will eventually go in this div.
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$widget_elem = $("<div>").addClass("widget-content");
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widgets.get(widget_type).activate({
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$elem: $widget_elem,
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callback,
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message,
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extra_data,
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});
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widget_contents.set(message.id, $widget_elem);
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set_widget_in_message($row, $widget_elem);
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// Replay any events that already happened. (This is common
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// when you narrow to a message after other users have already
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// interacted with it.)
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if (events.length > 0) {
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$widget_elem.handle_events(events);
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}
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}
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export function set_widgets_for_list() {
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for (const [idx, $widget_elem] of widget_contents) {
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if (message_lists.current.get(idx) !== undefined) {
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const $row = message_lists.current.get_row(idx);
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set_widget_in_message($row, $widget_elem);
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}
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}
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}
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export function handle_event(widget_event) {
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const $widget_elem = widget_contents.get(widget_event.message_id);
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if (!$widget_elem) {
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// It is common for submessage events to arrive on
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// messages that we don't yet have in view. We
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// just ignore them completely here.
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return;
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}
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const events = [widget_event];
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$widget_elem.handle_events(events);
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}
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