zulip/static/js/emoji_picker.js

733 lines
25 KiB
JavaScript

const emoji_codes = require("../generated/emoji/emoji_codes.json");
const typeahead = require("../shared/js/typeahead");
const render_emoji_popover = require('../templates/emoji_popover.hbs');
const render_emoji_popover_content = require('../templates/emoji_popover_content.hbs');
const render_emoji_popover_search_results = require('../templates/emoji_popover_search_results.hbs');
const render_emoji_showcase = require("../templates/emoji_showcase.hbs");
// 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.
exports.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;
function get_all_emoji_categories() {
return [
{ 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: "Custom", icon: "fa-cog" },
];
}
function get_total_sections() {
if (search_is_active) {
return 1;
}
return exports.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 exports.complete_emoji_catalog[section].emojis.length;
}
}
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: parseInt(emoji_info[1], 10),
index: 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;
}
exports.generate_emoji_picker_data = function (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) {
if (emoji_codes.codepoint_to_name.hasOwnProperty(codepoint)) {
const emoji_dict = emoji.emojis_by_name.get(
emoji_codes.codepoint_to_name[codepoint]
);
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) {
if (emoji_codes.codepoint_to_name.hasOwnProperty(codepoint)) {
const emoji_dict = emoji.emojis_by_name.get(emoji_codes.codepoint_to_name[codepoint]);
if (emoji_dict !== undefined) {
popular.push(emoji_dict);
}
}
}
catalog.set("Popular", popular);
const categories = get_all_emoji_categories().filter(category => catalog.has(category.name));
exports.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: exports.complete_emoji_catalog,
});
};
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,
});
});
}
exports.reactions_popped = function () {
return current_message_emoji_popover_elem !== undefined;
};
exports.hide_emoji_popover = function () {
$('.has_popover').removeClass('has_popover has_emoji_popover');
if (exports.reactions_popped()) {
const orig_title = current_message_emoji_popover_elem.data("original-title");
current_message_emoji_popover_elem.popover("destroy");
current_message_emoji_popover_elem.prop("title", orig_title);
current_message_emoji_popover_elem.removeClass("reaction_button_visible");
current_message_emoji_popover_elem = undefined;
}
};
function get_selected_emoji() {
return $(".emoji-popover-emoji").filter(":focus")[0];
}
function get_rendered_emoji(section, index) {
const emoji_id = get_emoji_id(section, index);
const emoji = $(".emoji-popover-emoji[data-emoji-id='" + emoji_id + "']");
if (emoji.length > 0) {
return emoji;
}
}
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 = exports.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, name: alias });
break; // We only need the first matching alias per emoji.
}
}
}
}
const rendered_search_results = render_emoji_popover_search_results({
search_results: search_results,
message_id: 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) {
const message_id = current_msg_list.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);
}
function maybe_select_emoji(e) {
if (e.keyCode === 13) { // enter key
e.preventDefault();
const first_emoji = get_rendered_emoji(0, 0);
if (first_emoji) {
if (exports.is_composition(first_emoji)) {
first_emoji.click();
} else {
toggle_reaction(first_emoji.data("emoji-name"));
}
}
}
}
exports.toggle_selected_emoji = function () {
// Toggle the currently selected emoji.
const selected_emoji = get_selected_emoji();
if (selected_emoji === undefined) {
return;
}
const emoji_name = $(selected_emoji).data("emoji-name");
toggle_reaction(emoji_name);
};
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);
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_dict,
});
$(".emoji-showcase-container").html(rendered_showcase);
}
function may_be_change_focused_emoji(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.focus();
} else {
const $emoji_map = $(".emoji-popover-emoji-map");
const start = ui.get_scroll_element($emoji_map).scrollTop();
next_emoji.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 may_be_change_active_section(next_section) {
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-popover-emoji-map")).scrollTop(offset.position_y);
may_be_change_focused_emoji(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').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();
}
exports.navigate = function (event_name) {
if (event_name === 'toggle_reactions_popover' && exports.reactions_popped() &&
(search_is_active === false || search_results.length === 0)) {
exports.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) {
return;
}
const selected_emoji = get_rendered_emoji(current_section, current_index);
const is_filter_focused = $('.emoji-popover-filter').is(':focus');
let next_section = 0;
// special cases
if (is_filter_focused) {
// Move down into emoji map.
const filter_text = $(".emoji-popover-filter").val();
const is_cursor_at_end = $(".emoji-popover-filter").caret() === filter_text.length;
if (event_name === "down_arrow" ||
is_cursor_at_end && event_name === "right_arrow") {
selected_emoji.focus();
if (current_section === 0 && current_index < 6) {
ui.get_scroll_element($(".emoji-popover-emoji-map")).scrollTop(0);
}
update_emoji_showcase(selected_emoji);
return true;
}
if (event_name === "tab") {
selected_emoji.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).
$('.emoji-popover-filter').focus().caret(Infinity);
ui.get_scroll_element($(".emoji-popover-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;
}
} else if (event_name === 'tab') {
change_focus_to_filter();
return true;
} else if (event_name === 'shift_tab') {
if (!is_filter_focused) {
change_focus_to_filter();
}
return true;
} else if (event_name === 'page_up') {
next_section = current_section - 1;
may_be_change_active_section(next_section);
return true;
} else if (event_name === 'page_down') {
next_section = current_section + 1;
may_be_change_active_section(next_section);
return true;
} else if (!is_filter_focused) {
let next_coord = {};
switch (event_name) {
case 'down_arrow':
next_coord = get_next_emoji_coordinates(6);
break;
case 'up_arrow':
next_coord = get_next_emoji_coordinates(-6);
break;
case 'left_arrow':
next_coord = get_next_emoji_coordinates(-1);
break;
case 'right_arrow':
next_coord = get_next_emoji_coordinates(1);
break;
}
return may_be_change_focused_emoji(next_coord.section, next_coord.index);
}
return false;
};
function process_keypress(e) {
const is_filter_focused = $('.emoji-popover-filter').is(':focus');
const pressed_key = e.which;
if (!is_filter_focused && pressed_key !== 58) {
// ':' => 58, is a hotkey for toggling reactions popover.
if (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();
}
}
}
exports.emoji_select_tab = function (elt) {
const scrolltop = elt.scrollTop();
const scrollheight = elt.prop('scrollHeight');
const elt_height = elt.height();
let currently_selected = "";
section_head_offsets.forEach(function (o) {
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="' + 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", function () {
exports.emoji_select_tab(ui.get_scroll_element($emoji_map));
});
$('.emoji-popover-filter').on('input', filter_emojis);
$('.emoji-popover-filter').keydown(maybe_select_emoji);
$('.emoji-popover').keypress(process_keypress);
$('.emoji-popover').keydown(function (e) {
// Because of cross-browser issues we need to handle backspace
// key separately. Firefox fires `keypress` event for backspace
// key but chrome doesn't so we need to trigger the logic for
// handling backspace in `keydown` event which is fired by both.
if (e.which === 8) {
process_keypress(e);
}
});
}
exports.render_emoji_popover = function (elt, id) {
const template_args = {
class: "emoji-info-popover",
};
let placement = popovers.compute_placement(elt, APPROX_HEIGHT, APPROX_WIDTH, true);
if (placement === 'viewport_center') {
// For legacy reasons `compute_placement` actually can
// return `viewport_center`, but bootstrap doesn't actually
// support that.
placement = 'left';
}
let template = render_emoji_popover(template_args);
// if the window is mobile sized, add the `.popover-flex` wrapper to the emoji
// popover so that it will be wrapped in flex and centered in the screen.
if (window.innerWidth <= 768) {
template = "<div class='popover-flex'>" + template + "</div>";
}
elt.popover({
// temporary patch for handling popover placement of `viewport_center`
placement: placement,
fix_positions: true,
template: template,
title: "",
content: generate_emoji_picker_content(id),
html: true,
trigger: "manual",
});
elt.popover("show");
elt.prop("title", i18n.t("Add emoji reaction (:)"));
const popover = elt.data('popover').$tip;
popover.find('.emoji-popover-filter').focus();
current_message_emoji_popover_elem = elt;
emoji_catalog_last_coordinates = {
section: 0,
index: 0,
};
show_emoji_catalog();
refill_section_head_offsets(popover);
register_popover_events(popover);
};
exports.toggle_emoji_popover = function (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) {
current_msg_list.select_id(id);
}
if (elt.data('popover') === undefined) {
// Keep the element over which the popover is based off visible.
elt.addClass("reaction_button_visible");
exports.render_emoji_popover(elt, id);
}
reset_emoji_showcase();
};
exports.register_click_handlers = function () {
$(document).on('click', '.emoji-popover-emoji.reaction', function () {
// 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).data("emoji-name");
toggle_reaction(emoji_name);
});
$(document).on('click', '.emoji-popover-emoji.composition', function (e) {
const emoji_name = $(this).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 = $("#message_edit_content_" + edit_message_id);
// 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();
exports.hide_emoji_popover();
});
$("body").on("click", "#emoji_map", function (e) {
e.preventDefault();
e.stopPropagation();
// The data-message-id atribute is only present in the emoji icon present in
// the message edit form. So the following check will return false if this
// event was not fired from message edit form.
if ($(this).attr("data-message-id") !== undefined) {
// Store data-message-id value in global variable edit_message_id so that
// its value can be further used to correclty find the message textarea element.
edit_message_id = $(this).attr("data-message-id");
} else {
edit_message_id = null;
}
exports.toggle_emoji_popover(this);
});
$("#main_div").on("click", ".reaction_button", function (e) {
e.stopPropagation();
const message_id = rows.get_message_id(this);
exports.toggle_emoji_popover(this, message_id);
});
$("#main_div").on("mouseenter", ".reaction_button", function (e) {
e.stopPropagation();
const elem = $(e.currentTarget);
const title = i18n.t("Add emoji reaction");
elem.tooltip({
title: title + " (:)",
trigger: 'hover',
placement: 'bottom',
animation: false,
});
elem.tooltip('show');
$(".tooltip-arrow").remove();
});
$('#main_div').on('mouseleave', '.reaction_button', function (e) {
e.stopPropagation();
$(e.currentTarget).tooltip('hide');
});
$("body").on("click", ".actions_popover .reaction_button", function (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];
exports.toggle_emoji_popover(elem, message_id);
});
$("body").on("click", ".emoji-popover-tab-item", function (e) {
e.stopPropagation();
e.preventDefault();
const offset = section_head_offsets.find(function (o) {
return o.section === $(this).attr("data-tab-name");
}.bind(this));
if (offset) {
ui.get_scroll_element($(".emoji-popover-emoji-map")).scrollTop(offset.position_y);
}
});
$("body").on("click", ".emoji-popover-filter", function () {
reset_emoji_showcase();
});
$("body").on("mouseenter", ".emoji-popover-emoji", function () {
const emoji_id = $(this).data("emoji-id");
const emoji_coordinates = get_emoji_coordinates(emoji_id);
may_be_change_focused_emoji(emoji_coordinates.section, emoji_coordinates.index, true);
});
};
exports.is_composition = function (emoji) {
return $(emoji).hasClass('composition');
};
exports.initialize = function () {
exports.generate_emoji_picker_data(emoji.active_realm_emojis);
};
window.emoji_picker = exports;