zulip/static/js/realm_logo.js

115 lines
3.8 KiB
JavaScript

import $ from "jquery";
import * as channel from "./channel";
import {page_params} from "./page_params";
import * as settings_data from "./settings_data";
import * as upload_widget from "./upload_widget";
export function build_realm_logo_widget(upload_function, is_night) {
let logo_section_id = "#realm-day-logo-upload-widget";
let logo_source = page_params.realm_logo_source;
if (is_night) {
logo_section_id = "#realm-night-logo-upload-widget";
logo_source = page_params.realm_night_logo_source;
}
const $delete_button_elem = $(logo_section_id + " .image-delete-button");
const $file_input_elem = $(logo_section_id + " .image_file_input");
const $file_input_error_elem = $(logo_section_id + " .image_file_input_error");
const $upload_button_elem = $(logo_section_id + " .image_upload_button");
const get_file_input = function () {
return $file_input_elem.expectOne();
};
if (!page_params.is_admin) {
return undefined;
}
if (logo_source === "D") {
$delete_button_elem.hide();
} else {
$delete_button_elem.show();
}
const data = {night: JSON.stringify(is_night)};
$delete_button_elem.on("click", (e) => {
e.preventDefault();
e.stopPropagation();
channel.del({
url: "/json/realm/logo",
data,
});
});
return upload_widget.build_direct_upload_widget(
get_file_input,
$file_input_error_elem.expectOne(),
$upload_button_elem.expectOne(),
upload_function,
page_params.max_logo_file_size_mib,
);
}
function change_logo_delete_button(logo_source, $logo_delete_button, $file_input) {
if (logo_source === "U") {
$logo_delete_button.show();
} else {
$logo_delete_button.hide();
// Need to clear input because of a small edge case
// where you try to upload the same image you just deleted.
$file_input.val("");
}
}
export function render() {
const $file_input = $("#realm-day-logo-upload-widget .image_file_input");
const $night_file_input = $("#realm-night-logo-upload-widget .realm-logo-file-input");
$("#realm-day-logo-upload-widget .image-block").attr("src", page_params.realm_logo_url);
if (page_params.realm_night_logo_source === "D" && page_params.realm_logo_source !== "D") {
// If no dark theme logo is uploaded but a light theme one
// is, use the light theme one; this handles the common case
// of transparent background logos that look good on both
// dark and light themes. See also similar code in admin.js.
$("#realm-night-logo-upload-widget .image-block").attr("src", page_params.realm_logo_url);
} else {
$("#realm-night-logo-upload-widget .image-block").attr(
"src",
page_params.realm_night_logo_url,
);
}
if (settings_data.using_dark_theme() && page_params.realm_night_logo_source !== "D") {
$("#realm-logo").attr("src", page_params.realm_night_logo_url);
} else {
$("#realm-logo").attr("src", page_params.realm_logo_url);
}
change_logo_delete_button(
page_params.realm_logo_source,
$("#realm-day-logo-upload-widget .image-delete-button"),
$file_input,
);
change_logo_delete_button(
page_params.realm_night_logo_source,
$("#realm-night-logo-upload-widget .image-delete-button"),
$night_file_input,
);
}
export function initialize() {
// render once
render();
// Rerender the realm-logo when the browser detects color scheme changes.
const dark_mode_media_query_list = window.matchMedia("(prefers-color-scheme: dark)");
dark_mode_media_query_list.addEventListener("change", () => {
if ($("body").hasClass("color-scheme-automatic")) {
render();
}
});
}