zulip/static/js/emoji_picker.js

769 lines
26 KiB
JavaScript

import $ from "jquery";
import emoji_codes from "../generated/emoji/emoji_codes.json";
import * as emoji from "../shared/js/emoji";
import * as typeahead from "../shared/js/typeahead";
import render_emoji_popover from "../templates/emoji_popover.hbs";
import render_emoji_popover_content from "../templates/emoji_popover_content.hbs";
import render_emoji_popover_search_results from "../templates/emoji_popover_search_results.hbs";
import render_emoji_showcase from "../templates/emoji_showcase.hbs";
import * as blueslip from "./blueslip";
import * as compose_ui from "./compose_ui";
import * as message_lists from "./message_lists";
import * as message_store from "./message_store";
import * as popovers from "./popovers";
import * as reactions from "./reactions";
import * as rows from "./rows";
import * as ui from "./ui";
import * as user_status_ui from "./user_status_ui";
// Emoji picker is of fixed width and height. Update these
// whenever these values are changed in `reactions.css`.
const APPROX_HEIGHT = 375;
const APPROX_WIDTH = 255;
// The functionalities for reacting to a message with an emoji
// and composing a message with an emoji share a single widget,
// implemented as the emoji_popover.
export let complete_emoji_catalog = [];
let current_message_emoji_popover_elem;
let emoji_catalog_last_coordinates = {
section: 0,
index: 0,
};
let current_section = 0;
let current_index = 0;
let search_is_active = false;
const search_results = [];
let section_head_offsets = [];
let edit_message_id = null;
const EMOJI_CATEGORIES = [
{name: "Popular", icon: "fa-star-o"},
{name: "Smileys & Emotion", icon: "fa-smile-o"},
{name: "People & Body", icon: "fa-thumbs-o-up"},
{name: "Animals & Nature", icon: "fa-leaf"},
{name: "Food & Drink", icon: "fa-cutlery"},
{name: "Activities", icon: "fa-soccer-ball-o"},
{name: "Travel & Places", icon: "fa-car"},
{name: "Objects", icon: "fa-lightbulb-o"},
{name: "Symbols", icon: "fa-hashtag"},
{name: "Flags", icon: "fa-flag"},
{name: "Custom", icon: "fa-cog"},
];
function get_total_sections() {
if (search_is_active) {
return 1;
}
return complete_emoji_catalog.length;
}
function get_max_index(section) {
if (search_is_active) {
return search_results.length;
} else if (section >= 0 && section < get_total_sections()) {
return complete_emoji_catalog[section].emojis.length;
}
return undefined;
}
function get_emoji_id(section, index) {
let type = "emoji_picker_emoji";
if (search_is_active) {
type = "emoji_search_result";
}
const emoji_id = [type, section, index].join(",");
return emoji_id;
}
function get_emoji_coordinates(emoji_id) {
// Emoji id is of the following form:
// <emoji_type>_<section_number>_<index>.
// See `get_emoji_id()`.
const emoji_info = emoji_id.split(",");
return {
section: Number.parseInt(emoji_info[1], 10),
index: Number.parseInt(emoji_info[2], 10),
};
}
function show_search_results() {
$(".emoji-popover-emoji-map").hide();
$(".emoji-popover-category-tabs").hide();
$(".emoji-search-results-container").show();
emoji_catalog_last_coordinates = {
section: current_section,
index: current_index,
};
current_section = 0;
current_index = 0;
search_is_active = true;
}
function show_emoji_catalog() {
$(".emoji-popover-emoji-map").show();
$(".emoji-popover-category-tabs").show();
$(".emoji-search-results-container").hide();
current_section = emoji_catalog_last_coordinates.section;
current_index = emoji_catalog_last_coordinates.index;
search_is_active = false;
}
export function rebuild_catalog() {
const realm_emojis = emoji.active_realm_emojis;
const catalog = new Map();
catalog.set(
"Custom",
Array.from(realm_emojis.keys(), (realm_emoji_name) =>
emoji.emojis_by_name.get(realm_emoji_name),
),
);
for (const [category, codepoints] of Object.entries(emoji_codes.emoji_catalog)) {
const emojis = [];
for (const codepoint of codepoints) {
const name = emoji.get_emoji_name(codepoint);
if (name !== undefined) {
const emoji_dict = emoji.emojis_by_name.get(name);
if (emoji_dict !== undefined && emoji_dict.is_realm_emoji !== true) {
emojis.push(emoji_dict);
}
}
}
catalog.set(category, emojis);
}
const popular = [];
for (const codepoint of typeahead.popular_emojis) {
const name = emoji.get_emoji_name(codepoint);
if (name !== undefined) {
const emoji_dict = emoji.emojis_by_name.get(name);
if (emoji_dict !== undefined) {
popular.push(emoji_dict);
}
}
}
catalog.set("Popular", popular);
const categories = EMOJI_CATEGORIES.filter((category) => catalog.has(category.name));
complete_emoji_catalog = categories.map((category) => ({
name: category.name,
icon: category.icon,
emojis: catalog.get(category.name),
}));
}
const generate_emoji_picker_content = function (id) {
let emojis_used = [];
if (id !== undefined) {
emojis_used = reactions.get_emojis_used_by_user_for_message_id(id);
}
for (const emoji_dict of emoji.emojis_by_name.values()) {
emoji_dict.has_reacted = emoji_dict.aliases.some((alias) => emojis_used.includes(alias));
}
return render_emoji_popover_content({
message_id: id,
emoji_categories: complete_emoji_catalog,
is_status_emoji_popover: user_status_ui.user_status_picker_open(),
});
};
function refill_section_head_offsets(popover) {
section_head_offsets = [];
popover.find(".emoji-popover-subheading").each(function () {
section_head_offsets.push({
section: $(this).attr("data-section"),
position_y: $(this).position().top,
});
});
}
export function reactions_popped() {
return current_message_emoji_popover_elem !== undefined;
}
export function hide_emoji_popover() {
$(".has_popover").removeClass("has_popover has_emoji_popover");
if (reactions_popped()) {
current_message_emoji_popover_elem.popover("destroy");
current_message_emoji_popover_elem.removeClass("reaction_button_visible");
current_message_emoji_popover_elem = undefined;
}
}
function get_selected_emoji() {
return $(".emoji-popover-emoji:focus")[0];
}
function get_rendered_emoji(section, index) {
const emoji_id = get_emoji_id(section, index);
const emoji = $(`.emoji-popover-emoji[data-emoji-id='${CSS.escape(emoji_id)}']`);
if (emoji.length > 0) {
return emoji;
}
return undefined;
}
function filter_emojis() {
const elt = $(".emoji-popover-filter").expectOne();
const query = elt.val().trim().toLowerCase();
const message_id = $(".emoji-search-results-container").data("message-id");
const search_results_visible = $(".emoji-search-results-container").is(":visible");
if (query !== "") {
const categories = complete_emoji_catalog;
const search_terms = query.split(" ");
search_results.length = 0;
for (const category of categories) {
if (category.name === "Popular") {
continue;
}
const emojis = category.emojis;
for (const emoji_dict of emojis) {
for (const alias of emoji_dict.aliases) {
const match = search_terms.every((search_term) => alias.includes(search_term));
if (match) {
search_results.push({...emoji_dict, emoji_name: alias});
break; // We only need the first matching alias per emoji.
}
}
}
}
const sorted_search_results = typeahead.sort_emojis(search_results, query);
const rendered_search_results = render_emoji_popover_search_results({
search_results: sorted_search_results,
is_status_emoji_popover: user_status_ui.user_status_picker_open(),
message_id,
});
$(".emoji-search-results").html(rendered_search_results);
ui.reset_scrollbar($(".emoji-search-results-container"));
if (!search_results_visible) {
show_search_results();
}
} else {
show_emoji_catalog();
}
}
function toggle_reaction(emoji_name, event) {
const message_id = message_lists.current.selected_id();
const message = message_store.get(message_id);
if (!message) {
blueslip.error("reactions: Bad message id: " + message_id);
return;
}
reactions.toggle_emoji_reaction(message_id, emoji_name, event);
if (!event.shiftKey) {
hide_emoji_popover();
}
$(event.target).closest(".reaction").toggleClass("reacted");
}
function is_composition(emoji) {
return $(emoji).hasClass("composition");
}
function is_status_emoji(emoji) {
return $(emoji).hasClass("status_emoji");
}
function process_enter_while_filtering(e) {
if (e.key === "Enter") {
e.preventDefault();
const first_emoji = get_rendered_emoji(0, 0);
if (first_emoji) {
if (is_composition(first_emoji)) {
first_emoji.trigger("click");
} else {
toggle_reaction(first_emoji.attr("data-emoji-name"), e);
}
}
}
}
function toggle_selected_emoji(e) {
// Toggle the currently selected emoji.
const selected_emoji = get_selected_emoji();
if (selected_emoji === undefined) {
return;
}
const emoji_name = $(selected_emoji).attr("data-emoji-name");
toggle_reaction(emoji_name, e);
}
function round_off_to_previous_multiple(number_to_round, multiple) {
return number_to_round - (number_to_round % multiple);
}
function reset_emoji_showcase() {
$(".emoji-showcase-container").html("");
}
function update_emoji_showcase($focused_emoji) {
// Don't use jQuery's data() function here. It has the side-effect
// of converting emoji names like :100:, :1234: etc to number.
const focused_emoji_name = $focused_emoji.attr("data-emoji-name");
const canonical_name = emoji.get_canonical_name(focused_emoji_name);
if (!canonical_name) {
blueslip.error("Invalid focused_emoji_name: " + focused_emoji_name);
return;
}
const focused_emoji_dict = emoji.emojis_by_name.get(canonical_name);
const emoji_dict = {
...focused_emoji_dict,
name: focused_emoji_name.replace(/_/g, " "),
};
const rendered_showcase = render_emoji_showcase({
emoji_dict,
});
$(".emoji-showcase-container").html(rendered_showcase);
}
function maybe_change_focused_emoji($emoji_map, next_section, next_index, preserve_scroll) {
const next_emoji = get_rendered_emoji(next_section, next_index);
if (next_emoji) {
current_section = next_section;
current_index = next_index;
if (!preserve_scroll) {
next_emoji.trigger("focus");
} else {
const start = ui.get_scroll_element($emoji_map).scrollTop();
next_emoji.trigger("focus");
if (ui.get_scroll_element($emoji_map).scrollTop() !== start) {
ui.get_scroll_element($emoji_map).scrollTop(start);
}
}
update_emoji_showcase(next_emoji);
return true;
}
return false;
}
function maybe_change_active_section(next_section) {
const $emoji_map = $(".emoji-popover-emoji-map");
if (next_section >= 0 && next_section < get_total_sections()) {
current_section = next_section;
current_index = 0;
const offset = section_head_offsets[current_section];
if (offset) {
ui.get_scroll_element($emoji_map).scrollTop(offset.position_y);
maybe_change_focused_emoji($emoji_map, current_section, current_index);
}
}
}
function get_next_emoji_coordinates(move_by) {
let next_section = current_section;
let next_index = current_index + move_by;
let max_len;
if (next_index < 0) {
next_section = next_section - 1;
if (next_section >= 0) {
next_index = get_max_index(next_section) - 1;
if (move_by === -6) {
max_len = get_max_index(next_section);
const prev_multiple = round_off_to_previous_multiple(max_len, 6);
next_index = prev_multiple + current_index;
next_index = next_index >= max_len ? prev_multiple + current_index - 6 : next_index;
}
}
} else if (next_index >= get_max_index(next_section)) {
next_section = next_section + 1;
if (next_section < get_total_sections()) {
next_index = 0;
if (move_by === 6) {
max_len = get_max_index(next_index);
next_index = current_index % 6;
next_index = next_index >= max_len ? max_len - 1 : next_index;
}
}
}
return {
section: next_section,
index: next_index,
};
}
function change_focus_to_filter() {
$(".emoji-popover-filter").trigger("focus");
// If search is active reset current selected emoji to first emoji.
if (search_is_active) {
current_section = 0;
current_index = 0;
}
reset_emoji_showcase();
}
export function navigate(event_name, e) {
if (
event_name === "toggle_reactions_popover" &&
reactions_popped() &&
(search_is_active === false || search_results.length === 0)
) {
hide_emoji_popover();
return true;
}
// If search is active and results are empty then return immediately.
if (search_is_active === true && search_results.length === 0) {
// We don't want to prevent default for keys like Backspace and space.
return false;
}
if (event_name === "enter") {
if (is_composition(e.target) || is_status_emoji(e.target)) {
e.target.click();
} else {
toggle_selected_emoji(e);
}
return true;
}
const $popover = $(".emoji-popover").expectOne();
const $emoji_map = $popover.find(".emoji-popover-emoji-map").expectOne();
const selected_emoji = get_rendered_emoji(current_section, current_index);
const is_filter_focused = $(".emoji-popover-filter").is(":focus");
// special cases
if (is_filter_focused) {
// Move down into emoji map.
const filter_text = $(".emoji-popover-filter").val();
const is_cursor_at_end = $(".emoji-popover-filter").caret() === filter_text.length;
if (event_name === "down_arrow" || (is_cursor_at_end && event_name === "right_arrow")) {
selected_emoji.trigger("focus");
if (current_section === 0 && current_index < 6) {
ui.get_scroll_element($emoji_map).scrollTop(0);
}
update_emoji_showcase(selected_emoji);
return true;
}
if (event_name === "tab") {
selected_emoji.trigger("focus");
update_emoji_showcase(selected_emoji);
return true;
}
return false;
} else if (
(current_section === 0 && current_index < 6 && event_name === "up_arrow") ||
(current_section === 0 && current_index === 0 && event_name === "left_arrow")
) {
if (selected_emoji) {
// In this case, we're move up into the reaction
// filter. Here, we override the default browser
// behavior, which in Firefox is good (preserving
// the cursor position) and in Chrome is bad (cursor
// goes to beginning) with something reasonable and
// consistent (cursor goes to the end of the filter
// string).
$(".emoji-popover-filter").trigger("focus").caret(Number.POSITIVE_INFINITY);
ui.get_scroll_element($emoji_map).scrollTop(0);
ui.get_scroll_element($(".emoji-search-results-container")).scrollTop(0);
current_section = 0;
current_index = 0;
reset_emoji_showcase();
return true;
}
return false;
}
switch (event_name) {
case "tab":
case "shift_tab":
change_focus_to_filter();
return true;
case "page_up":
maybe_change_active_section(current_section - 1);
return true;
case "page_down":
maybe_change_active_section(current_section + 1);
return true;
case "down_arrow":
case "up_arrow":
case "left_arrow":
case "right_arrow": {
const next_coord = get_next_emoji_coordinates(
{down_arrow: 6, up_arrow: -6, left_arrow: -1, right_arrow: 1}[event_name],
);
return maybe_change_focused_emoji($emoji_map, next_coord.section, next_coord.index);
}
default:
return false;
}
}
function process_keypress(e) {
const is_filter_focused = $(".emoji-popover-filter").is(":focus");
const pressed_key = e.which;
if (
!is_filter_focused &&
// ':' => 58, is a hotkey for toggling reactions popover.
pressed_key !== 58 &&
((pressed_key >= 32 && pressed_key <= 126) || pressed_key === 8)
) {
// Handle only printable characters or Backspace.
e.preventDefault();
e.stopPropagation();
const emoji_filter = $(".emoji-popover-filter");
const old_query = emoji_filter.val();
let new_query = "";
if (pressed_key === 8) {
// Handles Backspace.
new_query = old_query.slice(0, -1);
} else {
// Handles any printable character.
const key_str = String.fromCharCode(e.which);
new_query = old_query + key_str;
}
emoji_filter.val(new_query);
change_focus_to_filter();
filter_emojis();
}
}
export function emoji_select_tab(elt) {
const scrolltop = elt.scrollTop();
const scrollheight = elt.prop("scrollHeight");
const elt_height = elt.height();
let currently_selected = "";
for (const o of section_head_offsets) {
if (scrolltop + elt_height / 2 >= o.position_y) {
currently_selected = o.section;
}
}
// Handles the corner case of the last category being
// smaller than half of the emoji picker height.
if (elt_height + scrolltop === scrollheight) {
currently_selected = section_head_offsets[section_head_offsets.length - 1].section;
}
// Handles the corner case of the scrolling back to top.
if (scrolltop === 0) {
currently_selected = section_head_offsets[0].section;
}
if (currently_selected) {
$(".emoji-popover-tab-item.active").removeClass("active");
$(`.emoji-popover-tab-item[data-tab-name="${CSS.escape(currently_selected)}"]`).addClass(
"active",
);
}
}
function register_popover_events(popover) {
const $emoji_map = popover.find(".emoji-popover-emoji-map");
ui.get_scroll_element($emoji_map).on("scroll", () => {
emoji_select_tab(ui.get_scroll_element($emoji_map));
});
$(".emoji-popover-filter").on("input", filter_emojis);
$(".emoji-popover-filter").on("keydown", process_enter_while_filtering);
$(".emoji-popover").on("keypress", process_keypress);
$(".emoji-popover").on("keydown", (e) => {
// Because of cross-browser issues we need to handle Backspace
// key separately. Firefox fires `keypress` event for Backspace
// key but chrome doesn't so we need to trigger the logic for
// handling Backspace in `keydown` event which is fired by both.
if (e.which === 8) {
process_keypress(e);
}
});
}
export function build_emoji_popover(elt, id) {
const template_args = {
class: "emoji-info-popover",
};
let placement = popovers.compute_placement(elt, APPROX_HEIGHT, APPROX_WIDTH, true);
if (placement === "viewport_center") {
// For legacy reasons `compute_placement` actually can
// return `viewport_center`, but bootstrap doesn't actually
// support that.
placement = "left";
}
let template = render_emoji_popover(template_args);
// if the window is mobile sized, add the `.popover-flex` wrapper to the emoji
// popover so that it will be wrapped in flex and centered in the screen.
if (window.innerWidth <= 768) {
template = "<div class='popover-flex'>" + template + "</div>";
}
elt.popover({
// temporary patch for handling popover placement of `viewport_center`
placement,
fix_positions: true,
template,
title: "",
content: generate_emoji_picker_content(id),
html: true,
trigger: "manual",
});
elt.popover("show");
const popover = elt.data("popover").$tip;
popover.find(".emoji-popover-filter").trigger("focus");
current_message_emoji_popover_elem = elt;
emoji_catalog_last_coordinates = {
section: 0,
index: 0,
};
show_emoji_catalog();
elt.ready(() => refill_section_head_offsets(popover));
register_popover_events(popover);
}
export function toggle_emoji_popover(element, id) {
const last_popover_elem = current_message_emoji_popover_elem;
popovers.hide_all();
if (last_popover_elem !== undefined && last_popover_elem.get()[0] === element) {
// We want it to be the case that a user can dismiss a popover
// by clicking on the same element that caused the popover.
return;
}
$(element).closest(".message_row").toggleClass("has_popover has_emoji_popover");
const elt = $(element);
if (id !== undefined) {
message_lists.current.select_id(id);
}
if (user_status_ui.user_status_picker_open()) {
build_emoji_popover(elt, id, true);
} else if (elt.data("popover") === undefined) {
// Keep the element over which the popover is based off visible.
elt.addClass("reaction_button_visible");
build_emoji_popover(elt, id);
}
reset_emoji_showcase();
}
export function register_click_handlers() {
$(document).on("click", ".emoji-popover-emoji.reaction", function (e) {
// When an emoji is clicked in the popover,
// if the user has reacted to this message with this emoji
// the reaction is removed
// otherwise, the reaction is added
const emoji_name = $(this).attr("data-emoji-name");
toggle_reaction(emoji_name, e);
});
$(document).on("click", ".emoji-popover-emoji.composition", function (e) {
const emoji_name = $(this).attr("data-emoji-name");
const emoji_text = ":" + emoji_name + ":";
// The following check will return false if emoji was not selected in
// message edit form.
if (edit_message_id !== null) {
const edit_message_textarea = $(
`#edit_form_${CSS.escape(edit_message_id)} .message_edit_content`,
);
// Assign null to edit_message_id so that the selection of emoji in new
// message composition form works correctly.
edit_message_id = null;
compose_ui.insert_syntax_and_focus(emoji_text, edit_message_textarea);
} else {
compose_ui.insert_syntax_and_focus(emoji_text);
}
e.stopPropagation();
hide_emoji_popover();
});
$("body").on("click", ".emoji_map", function (e) {
e.preventDefault();
e.stopPropagation();
if ($(e.target).parents(".message_edit_form").length === 1) {
// Store message id in global variable edit_message_id so that
// its value can be further used to correctly find the message textarea element.
edit_message_id = rows.get_message_id(e.target);
} else {
edit_message_id = null;
}
toggle_emoji_popover(this);
});
$("#main_div").on("click", ".reaction_button", function (e) {
e.stopPropagation();
const message_id = rows.get_message_id(this);
toggle_emoji_popover(this, message_id);
});
$("body").on("click", ".actions_popover .reaction_button", (e) => {
const message_id = $(e.currentTarget).data("message-id");
e.preventDefault();
e.stopPropagation();
// HACK: Because we need the popover to be based off an
// element that definitely exists in the page even if the
// message wasn't sent by us and thus the .reaction_hover
// element is not present, we use the message's
// .fa-chevron-down element as the base for the popover.
const elem = $(".selected_message .actions_hover")[0];
toggle_emoji_popover(elem, message_id);
});
$("body").on("click", ".emoji-popover-tab-item", function (e) {
e.stopPropagation();
e.preventDefault();
const $popover = $(e.currentTarget).closest(".emoji-info-popover").expectOne();
const $emoji_map = $popover.find(".emoji-popover-emoji-map");
const offset = section_head_offsets.find(
(o) => o.section === $(this).attr("data-tab-name"),
);
if (offset) {
ui.get_scroll_element($emoji_map).scrollTop(offset.position_y);
}
});
$("body").on("click", ".emoji-popover-filter", () => {
reset_emoji_showcase();
});
$("body").on("mouseenter", ".emoji-popover-emoji", (e) => {
const emoji_id = $(e.currentTarget).data("emoji-id");
const emoji_coordinates = get_emoji_coordinates(emoji_id);
const $emoji_map = $(e.currentTarget)
.closest(".emoji-popover")
.expectOne()
.find(".emoji-popover-emoji-map");
maybe_change_focused_emoji(
$emoji_map,
emoji_coordinates.section,
emoji_coordinates.index,
true,
);
});
}
export function initialize() {
rebuild_catalog();
}