zulip/static/js/hotkey.js

829 lines
27 KiB
JavaScript

var hotkeys = (function () {
var exports = {};
function do_narrow_action(action) {
action(current_msg_list.selected_id(), {trigger: 'hotkey'});
return true;
}
// For message actions and user profile menu.
var menu_dropdown_hotkeys = [
'down_arrow',
'up_arrow',
'vim_up',
'vim_down',
'enter',
];
// Note that multiple keys can map to the same event_name, which
// we'll do in cases where they have the exact same semantics.
// DON'T FORGET: update keyboard_shortcuts.html
// The `message_view_only` property is a convenient and performant way
// to express a common case of which hotkeys do something in which
// views. It is set for hotkeys (like `Ctrl + s`) that only have an effect
// in the main message view with a selected message.
// `message_view_only` hotkeys, as a group, are not processed if any
// overlays are open (e.g. settings, streams, etc.).
var keydown_shift_mappings = {
// these can be triggered by shift + key only
9: {name: 'shift_tab', message_view_only: false}, // tab
32: {name: 'shift_spacebar', message_view_only: true}, // space bar
};
var keydown_unshift_mappings = {
// these can be triggered by key only (without shift)
9: {name: 'tab', message_view_only: false}, // tab
27: {name: 'escape', message_view_only: false}, // escape
32: {name: 'spacebar', message_view_only: true}, // space bar
33: {name: 'page_up', message_view_only: true}, // page up
34: {name: 'page_down', message_view_only: true}, // page down
35: {name: 'end', message_view_only: true}, // end
36: {name: 'home', message_view_only: true}, // home
37: {name: 'left_arrow', message_view_only: false}, // left arrow
39: {name: 'right_arrow', message_view_only: false}, // right arrow
38: {name: 'up_arrow', message_view_only: false}, // up arrow
40: {name: 'down_arrow', message_view_only: false}, // down arrow
};
var keydown_ctrl_mappings = {
219: {name: 'escape', message_view_only: false}, // '['
};
var keydown_cmd_or_ctrl_mappings = {
67: {name: 'copy_with_c', message_view_only: false}, // 'C'
75: {name: 'search_with_k', message_view_only: false}, // 'K'
83: {name: 'star_message', message_view_only: true}, // 's'
190: {name: 'narrow_to_compose_target', message_view_only: true}, // '.'
};
var keydown_either_mappings = {
// these can be triggered by key or shift + key
// Note that codes for letters are still case sensitive!
//
// We may want to revisit both of these. For backspace, we don't
// have any specific mapping behavior; we are just trying to disable
// the normal browser features for certain OSes when we are in the
// compose box, and the little bit of backspace-related code here is
// dubious, but may apply to shift-backspace.
// For enter, there is some possibly that shift-enter is intended to
// have special behavior for folks that are used to shift-enter behavior
// in other apps, but that's also slightly dubious.
8: {name: 'backspace', message_view_only: true}, // backspace
13: {name: 'enter', message_view_only: false}, // enter
46: {name: 'delete', message_view_only: false}, // delete
};
var keypress_mappings = {
42: {name: 'star_deprecated', message_view_only: true}, // '*'
43: {name: 'thumbs_up_emoji', message_view_only: true}, // '+'
45: {name: 'toggle_message_collapse', message_view_only: true}, // '-'
47: {name: 'search', message_view_only: false}, // '/'
58: {name: 'toggle_reactions_popover', message_view_only: true}, // ':'
62: {name: 'compose_quote_reply', message_view_only: true}, // '>'
63: {name: 'show_shortcuts', message_view_only: false}, // '?'
64: {name: 'compose_reply_with_mention', message_view_only: true}, // '@'
65: {name: 'stream_cycle_backward', message_view_only: true}, // 'A'
67: {name: 'C_deprecated', message_view_only: true}, // 'C'
68: {name: 'stream_cycle_forward', message_view_only: true}, // 'D'
71: {name: 'G_end', message_view_only: true}, // 'G'
74: {name: 'vim_page_down', message_view_only: true}, // 'J'
75: {name: 'vim_page_up', message_view_only: true}, // 'K'
77: {name: 'toggle_mute', message_view_only: true}, // 'M'
80: {name: 'narrow_private', message_view_only: true}, // 'P'
82: {name: 'respond_to_author', message_view_only: true}, // 'R'
83: {name: 'narrow_by_topic', message_view_only: true}, //'S'
86: {name: 'view_selected_stream', message_view_only: false}, //'V'
99: {name: 'compose', message_view_only: true}, // 'c'
100: {name: 'open_drafts', message_view_only: true}, // 'd'
101: {name: 'edit_message', message_view_only: true}, // 'e'
103: {name: 'gear_menu', message_view_only: true}, // 'g'
105: {name: 'message_actions', message_view_only: true}, // 'i'
106: {name: 'vim_down', message_view_only: true}, // 'j'
107: {name: 'vim_up', message_view_only: true}, // 'k'
110: {name: 'n_key', message_view_only: false}, // 'n'
112: {name: 'p_key', message_view_only: false}, // 'p'
113: {name: 'query_streams', message_view_only: false}, // 'q'
114: {name: 'reply_message', message_view_only: true}, // 'r'
115: {name: 'narrow_by_recipient', message_view_only: true}, // 's'
117: {name: 'show_sender_info', message_view_only: true}, // 'u'
118: {name: 'show_lightbox', message_view_only: true}, // 'v'
119: {name: 'query_users', message_view_only: false}, // 'w'
120: {name: 'compose_private_message', message_view_only: true}, // 'x'
};
exports.get_keydown_hotkey = function (e) {
if (e.altKey) {
return;
}
var hotkey;
if (e.ctrlKey && !e.shiftKey) {
hotkey = keydown_ctrl_mappings[e.which];
if (hotkey) {
return hotkey;
}
}
var isCmdOrCtrl = common.has_mac_keyboard() ? e.metaKey : e.ctrlKey;
if (isCmdOrCtrl && !e.shiftKey) {
hotkey = keydown_cmd_or_ctrl_mappings[e.which];
if (hotkey) {
return hotkey;
}
return;
} else if (e.metaKey || e.ctrlKey) {
return;
}
if (e.shiftKey) {
hotkey = keydown_shift_mappings[e.which];
if (hotkey) {
return hotkey;
}
}
if (!e.shiftKey) {
hotkey = keydown_unshift_mappings[e.which];
if (hotkey) {
return hotkey;
}
}
return keydown_either_mappings[e.which];
};
exports.get_keypress_hotkey = function (e) {
if (e.metaKey || e.ctrlKey || e.altKey) {
return;
}
return keypress_mappings[e.which];
};
exports.processing_text = (function () {
var selector = [
'input:focus',
'select:focus',
'textarea:focus',
'#compose-send-button:focus',
'.editable-section:focus',
'.pill-container div:focus',
].join(",");
return function () {
return $(selector).length > 0;
};
}());
exports.is_editing_stream_name = function (e) {
return $(e.target).is(".editable-section");
};
// Returns true if we handled it, false if the browser should.
exports.process_escape_key = function (e) {
var row;
if (exports.is_editing_stream_name(e)) {
return false;
}
if (feedback_widget.is_open()) {
feedback_widget.dismiss();
return true;
}
if (overlays.is_modal_open()) {
overlays.close_active_modal();
return true;
}
if (overlays.is_active()) {
overlays.close_active();
return true;
}
if (gear_menu.is_open()) {
gear_menu.close();
return true;
}
if (message_edit.is_editing(current_msg_list.selected_id())) {
// Using this definition of "row" instead of "current_msg_list.selected_row()"
// because it returns a more complete object.
// Necessary for refocusing on message list in Firefox.
row = $(".message_edit_content").filter(":focus").closest(".message_row");
row.find('.message_edit_content').blur();
message_edit.end(row);
return true;
}
if (exports.processing_text()) {
if ($(".message_edit_content").filter(":focus").length > 0) {
row = $(".message_edit_content").filter(":focus").closest(".message_row");
row.find('.message_edit_content').blur();
message_edit.end(row);
return true;
}
if ($(".message_edit_topic").filter(":focus").length > 0) {
row = $(".message_edit_topic").filter(":focus").closest(".message_row");
row.find('.message_edit_topic').blur();
message_edit.end(row);
return true;
}
if (activity.searching()) {
activity.escape_search();
return true;
}
if (stream_list.searching()) {
stream_list.escape_search();
return true;
}
// Emoji picker goes before compose so compose emoji picker is closed properly.
if (emoji_picker.reactions_popped()) {
emoji_picker.hide_emoji_popover();
return true;
}
if (compose_state.composing()) {
// Check for errors in compose box; close errors if they exist
if ($("#compose-send-status").css('display') !== 'none') {
$("#compose-send-status").hide();
return true;
}
// If the user hit the escape key, cancel the current compose
compose_actions.cancel();
return true;
}
if (page_params.search_pills_enabled && $('#searchbox').has(':focus')) {
$('#searchbox .pill').blur();
$('#searchbox #search_query').blur();
return true;
}
// We pressed Esc and something was focused, and the composebox
// wasn't open. In that case, we should blur the input.
$("input:focus,textarea:focus").blur();
return true;
}
if (popovers.any_active()) {
popovers.hide_all();
return true;
}
if (compose_state.composing()) {
compose_actions.cancel();
return true;
}
if (topic_zoom.is_zoomed_in()) {
topic_zoom.zoom_out();
return true;
}
narrow.deactivate();
return true;
};
// Returns true if we handled it, false if the browser should.
exports.process_enter_key = function (e) {
if ($(".dropdown.open").length && $(e.target).attr("role") === "menuitem") {
// on #gear-menu li a[tabindex] elements, force a click and prevent default.
// this is because these links do not have an href and so don't force a
// default action.
e.target.click();
return true;
}
if (hotspots.is_open()) {
$(e.target).find('.hotspot.overlay.show .hotspot-confirm').click();
return false;
}
if (emoji_picker.reactions_popped()) {
if (emoji_picker.is_composition(e.target)) {
e.target.click();
} else {
emoji_picker.toggle_selected_emoji();
}
return true;
}
if (exports.is_editing_stream_name(e)) {
$(e.target).parent().find(".checkmark").click();
return false;
}
if (popovers.actions_popped()) {
popovers.actions_menu_handle_keyboard('enter');
return true;
}
if (overlays.settings_open()) {
// On the settings page just let the browser handle
// the enter key for things like submitting forms.
return false;
}
if (overlays.streams_open()) {
return false;
}
if (exports.processing_text()) {
if (stream_list.searching()) {
// This is sort of funny behavior, but I think
// the intention is that we want it super easy
// to close stream search.
stream_list.clear_and_hide_search();
return true;
}
return false;
}
// This handles when pressing enter while looking at drafts.
// It restores draft that is focused.
if (overlays.drafts_open()) {
drafts.drafts_handle_events(e, "enter");
return true;
}
// If we're on a button or a link and have pressed enter, let the
// browser handle the keypress
//
// This is subtle and here's why: Suppose you have the focus on a
// stream name in your left sidebar. j and k will still move your
// cursor up and down, but Enter won't reply -- it'll just trigger
// the link on the sidebar! So you keep pressing enter over and
// over again. Until you click somewhere or press r.
if ($('a:focus,button:focus').length > 0) {
return false;
}
if ($("#preview_message_area").is(":visible")) {
compose.enter_with_preview_open();
return true;
}
// If we got this far, then we're presumably in the message
// view, so in that case "enter" is the hotkey to respond to a message.
// Note that "r" has same effect, but that is handled in process_hotkey().
compose_actions.respond_to_message({trigger: 'hotkey enter'});
return true;
};
exports.process_tab_key = function () {
// Returns true if we handled it, false if the browser should.
// TODO: See if browsers like Safari can now handle tabbing correctly
// without our intervention.
var message_edit_form;
var focused_message_edit_content = $(".message_edit_content").filter(":focus");
if (focused_message_edit_content.length > 0) {
message_edit_form = focused_message_edit_content.closest(".message_edit_form");
// Open message edit forms either have a save button or a close button, but not both.
message_edit_form.find(".message_edit_save,.message_edit_close").focus();
return true;
}
var focused_message_edit_save = $(".message_edit_save").filter(":focus");
if (focused_message_edit_save.length > 0) {
message_edit_form = focused_message_edit_save.closest(".message_edit_form");
message_edit_form.find(".message_edit_cancel").focus();
return true;
}
if (emoji_picker.reactions_popped()) {
return emoji_picker.navigate('tab');
}
return false;
};
exports.process_shift_tab_key = function () {
// Returns true if we handled it, false if the browser should.
// TODO: See if browsers like Safari can now handle tabbing correctly
// without our intervention.
if ($('#compose-send-button').is(':focus')) {
// Shift-Tab: go back to content textarea and restore
// cursor position.
ui.restore_compose_cursor();
return true;
}
// Shift-tabbing from the edit message cancel button takes you to save.
if ($(".message_edit_cancel").filter(":focus").length > 0) {
$(".message_edit_save").focus();
return true;
}
// Shift-tabbing from the edit message save button takes you to the content.
var focused_message_edit_save = $(".message_edit_save").filter(":focus");
if (focused_message_edit_save.length > 0) {
focused_message_edit_save.closest(".message_edit_form")
.find(".message_edit_content").focus();
return true;
}
// Shift-tabbing from emoji catalog/search results takes you back to search textbox.
if (emoji_picker.reactions_popped()) {
return emoji_picker.navigate('shift_tab');
}
return false;
};
// Process a keydown or keypress event.
//
// Returns true if we handled it, false if the browser should.
exports.process_hotkey = function (e, hotkey) {
var event_name = hotkey.name;
// We handle the most complex keys in their own functions.
switch (event_name) {
case 'escape':
return exports.process_escape_key(e);
case 'enter':
return exports.process_enter_key(e);
case 'tab':
return exports.process_tab_key();
case 'shift_tab':
return exports.process_shift_tab_key();
}
// TODO: break out specific handlers for up_arrow,
// down_arrow, and backspace
switch (event_name) {
case 'up_arrow':
case 'down_arrow':
case 'backspace':
case 'delete':
if (overlays.drafts_open()) {
drafts.drafts_handle_events(e, event_name);
return true;
}
}
if (hotkey.message_view_only && overlays.is_active()) {
if (exports.processing_text()) {
return false;
}
if (event_name === 'narrow_by_topic' && overlays.streams_open()) {
subs.keyboard_sub();
return true;
}
if (event_name === 'show_lightbox' && overlays.lightbox_open()) {
overlays.close_overlay('lightbox');
return true;
}
if (event_name === 'open_drafts' && overlays.drafts_open()) {
overlays.close_overlay('drafts');
return true;
}
return false;
}
if (overlays.settings_open()) {
return false;
}
if (emoji_picker.reactions_popped()) {
return emoji_picker.navigate(event_name);
}
if (hotspots.is_open()) {
return false;
}
if (overlays.info_overlay_open()) {
if (event_name === 'show_shortcuts') {
overlays.close_active();
return true;
}
return false;
}
if ((event_name === 'up_arrow' || event_name === 'down_arrow') && overlays.streams_open()) {
return subs.switch_rows(event_name);
}
if (exports.is_editing_stream_name(e)) {
// We handle the enter key in process_enter_key().
// We ignore all other keys.
return false;
}
if (event_name === "up_arrow") {
if (list_util.inside_list(e)) {
list_util.go_up(e);
return true;
}
}
if (event_name === "down_arrow") {
if (list_util.inside_list(e)) {
list_util.go_down(e);
return true;
}
}
if (menu_dropdown_hotkeys.indexOf(event_name) !== -1) {
if (popovers.actions_popped()) {
popovers.actions_menu_handle_keyboard(event_name);
return true;
}
if (popovers.message_info_popped()) {
popovers.user_info_popover_handle_keyboard(event_name);
return true;
}
}
// The next two sections date back to 00445c84 and are Mac/Chrome-specific,
// and they should possibly be eliminated in favor of keeping standard
// browser behavior.
if (event_name === 'backspace') {
if ($('#compose-send-button').is(':focus')) {
// Ignore backspace; don't navigate back a page.
return true;
}
}
if (event_name === 'narrow_to_compose_target') {
narrow.to_compose_target();
return true;
}
// Process hotkeys specially when in an input, select, textarea, or send button
if (exports.processing_text()) {
// Note that there is special handling for enter/escape too, but
// we handle this in other functions.
if (event_name === 'left_arrow' && compose_state.focus_in_empty_compose()) {
message_edit.edit_last_sent_message();
return true;
}
if ((event_name === 'up_arrow' || event_name === 'down_arrow') && compose_state.focus_in_empty_compose()) {
compose_actions.cancel();
// don't return, as we still want it to be picked up by the code below
} else if (event_name === "page_up") {
$(":focus").caret(0).animate({ scrollTop: 0 }, "fast");
return true;
} else if (event_name === "page_down") {
// so that it always goes to the end of the text box.
var height = $(":focus")[0].scrollHeight;
$(":focus").caret(Infinity).animate({ scrollTop: height }, "fast");
return true;
} else if (event_name === "search_with_k") {
// Do nothing; this allows one to use ctrl+k inside compose.
} else if (event_name === "star_message") {
// Do nothing; this allows one to use ctrl+s inside compose.
} else {
// Let the browser handle the key normally.
return false;
}
}
if (event_name === 'left_arrow') {
if (overlays.lightbox_open()) {
lightbox.prev();
return true;
} else if (overlays.streams_open()) {
subs.toggle_view(event_name);
return true;
}
message_edit.edit_last_sent_message();
return true;
}
if (event_name === 'right_arrow') {
if (overlays.lightbox_open()) {
lightbox.next();
return true;
} else if (overlays.streams_open()) {
subs.toggle_view(event_name);
return true;
}
}
// Prevent navigation in the background when the overlays are active.
if (overlays.is_active()) {
if (event_name === 'view_selected_stream' && overlays.streams_open()) {
subs.view_stream();
return true;
}
if (event_name === 'n_key' && overlays.streams_open() && page_params.can_create_streams) {
subs.open_create_stream();
return true;
}
return false;
}
// Shortcuts that don't require a message
switch (event_name) {
case 'compose': // 'c': compose
compose_actions.start('stream', {trigger: "compose_hotkey"});
return true;
case 'compose_private_message':
compose_actions.start('private', {trigger: "compose_hotkey"});
return true;
case 'narrow_private':
return do_narrow_action(function (target, opts) {
narrow.by('is', 'private', opts);
});
case 'query_streams':
stream_list.initiate_search();
return true;
case 'query_users':
activity.initiate_search();
return true;
case 'search':
case 'search_with_k':
search.initiate_search();
return true;
case 'gear_menu':
gear_menu.open();
return true;
case 'show_shortcuts': // Show keyboard shortcuts page
info_overlay.maybe_show_keyboard_shortcuts();
return true;
case 'stream_cycle_backward':
narrow.stream_cycle_backward();
return true;
case 'stream_cycle_forward':
narrow.stream_cycle_forward();
return true;
case 'n_key':
narrow.narrow_to_next_topic();
return true;
case 'p_key':
narrow.narrow_to_next_pm_string();
return true;
case 'open_drafts':
drafts.launch();
return true;
case 'reply_message': // 'r': respond to message
// Note that you can "enter" to respond to messages as well,
// but that is handled in process_enter_key().
compose_actions.respond_to_message({trigger: 'hotkey'});
return true;
case 'C_deprecated':
ui.maybe_show_deprecation_notice('C');
return true;
case 'star_deprecated':
ui.maybe_show_deprecation_notice('*');
return true;
case 'copy_with_c':
copy_and_paste.copy_handler();
return true;
}
if (current_msg_list.empty()) {
return false;
}
// Navigation shortcuts
switch (event_name) {
case 'down_arrow':
case 'vim_down':
navigate.down(true); // with_centering
return true;
case 'up_arrow':
case 'vim_up':
navigate.up();
return true;
case 'home':
navigate.to_home();
return true;
case 'end':
case 'G_end':
navigate.to_end();
return true;
case 'page_up':
case 'vim_page_up':
case 'shift_spacebar':
navigate.page_up();
return true;
case 'page_down':
case 'vim_page_down':
case 'spacebar':
navigate.page_down();
return true;
}
var msg = current_msg_list.selected_message();
// Shortcuts that operate on a message
switch (event_name) {
case 'message_actions':
return popovers.open_message_menu(msg);
case 'star_message':
message_flags.toggle_starred_and_update_server(msg);
return true;
case 'narrow_by_recipient':
return do_narrow_action(narrow.by_recipient);
case 'narrow_by_topic':
return do_narrow_action(narrow.by_topic);
case 'respond_to_author': // 'R': respond to author
compose_actions.respond_to_message({reply_type: "personal", trigger: 'hotkey pm'});
return true;
case 'compose_reply_with_mention': // '@': respond to message with mention to author
compose_actions.reply_with_mention({trigger: 'hotkey'});
return true;
case 'show_lightbox':
lightbox.show_from_selected_message();
return true;
case 'show_sender_info':
popovers.show_sender_info();
return true;
case 'toggle_reactions_popover': // ':': open reactions to message
reactions.open_reactions_popover();
return true;
case 'thumbs_up_emoji': // '+': reacts with thumbs up emoji on selected message
// Use canonical name.
var thumbs_up_emoji_code = '1f44d';
var canonical_name = emoji_codes.codepoint_to_name[thumbs_up_emoji_code];
reactions.toggle_emoji_reaction(msg.id, canonical_name);
return true;
case 'toggle_mute':
muting_ui.toggle_mute(msg);
return true;
case 'toggle_message_collapse':
condense.toggle_collapse(msg);
return true;
case 'compose_quote_reply': // > : respond to selected message with quote
compose_actions.quote_and_reply({trigger: 'hotkey'});
return true;
case 'edit_message':
var row = current_msg_list.get_row(msg.id);
message_edit.start(row);
return true;
}
return false;
};
/* We register both a keydown and a keypress function because
we want to intercept pgup/pgdn, escape, etc, and process them
as they happen on the keyboard. However, if we processed
letters/numbers in keydown, we wouldn't know what the case of
the letters were.
We want case-sensitive hotkeys (such as in the case of r vs R)
so we bail in .keydown if the event is a letter or number and
instead just let keypress go for it. */
exports.process_keydown = function (e) {
activity.new_user_input = true;
var hotkey = exports.get_keydown_hotkey(e);
if (!hotkey) {
return false;
}
return exports.process_hotkey(e, hotkey);
};
$(document).keydown(function (e) {
if (exports.process_keydown(e)) {
// TODO: We should really move this resize code
// so it only executes as part of navigation actions.
resize.resize_bottom_whitespace();
e.preventDefault();
}
});
exports.process_keypress = function (e) {
var hotkey = exports.get_keypress_hotkey(e);
if (!hotkey) {
return false;
}
return exports.process_hotkey(e, hotkey);
};
$(document).keypress(function (e) {
if (exports.process_keypress(e)) {
e.preventDefault();
}
});
return exports;
}());
if (typeof module !== 'undefined') {
module.exports = hotkeys;
}
window.hotkey = hotkeys;