mirror of https://github.com/zulip/zulip.git
132 lines
3.8 KiB
JavaScript
132 lines
3.8 KiB
JavaScript
var directional_hotkeys = {
|
|
40: get_next_visible, // down arrow
|
|
38: get_prev_visible, // up arrow
|
|
36: get_first_visible, // Home
|
|
35: get_last_visible // End
|
|
};
|
|
|
|
function simulate_keypress(keycode) {
|
|
$(document).trigger($.Event('keydown', {keyCode: keycode}));
|
|
}
|
|
|
|
function above_view(zephyr) {
|
|
return zephyr.offset().top < $("#main_div").offset().top;
|
|
}
|
|
|
|
function below_view(zephyr) {
|
|
var main_div = $("#main_div");
|
|
return zephyr.offset().top + zephyr.height() > main_div.offset().top + main_div.height();
|
|
}
|
|
|
|
function keep_pointer_in_view() {
|
|
var next_zephyr = get_zephyr_row(selected_zephyr_id);
|
|
if (above_view(next_zephyr)) {
|
|
while (above_view(next_zephyr)) {
|
|
next_zephyr = get_next_visible(next_zephyr);
|
|
}
|
|
} else if (below_view(next_zephyr)) {
|
|
while (below_view(next_zephyr)) {
|
|
next_zephyr = get_prev_visible(next_zephyr);
|
|
}
|
|
}
|
|
update_selected_zephyr(next_zephyr);
|
|
}
|
|
|
|
function process_hotkey(code) {
|
|
var next_zephyr, window_to_scroll;
|
|
if (code in directional_hotkeys) {
|
|
next_zephyr = directional_hotkeys[code](selected_zephyr);
|
|
if (next_zephyr.length !== 0) {
|
|
select_zephyr(next_zephyr, true);
|
|
}
|
|
if ((next_zephyr.length === 0) && (code === 40)) {
|
|
// At the last zephyr, scroll to the bottom so we have
|
|
// lots of nice whitespace for new zephyrs coming in.
|
|
//
|
|
// FIXME: this doesn't work for End because get_last_visible()
|
|
// always returns a zephyr.
|
|
$("#main_div").scrollTop($("#main_div").prop("scrollHeight"));
|
|
}
|
|
return process_hotkey;
|
|
}
|
|
|
|
window_to_scroll = $(".active.scrolling_tab");
|
|
if (window_to_scroll.length === 0) {
|
|
window_to_scroll = $(".active").find(".scrolling-tab");
|
|
}
|
|
|
|
switch (code) {
|
|
case 33: // Page Up
|
|
window_to_scroll.scrollTop(window_to_scroll.scrollTop() - window_to_scroll.height());
|
|
keep_pointer_in_view();
|
|
return process_hotkey;
|
|
case 34: // Page Down
|
|
window_to_scroll.scrollTop(window_to_scroll.scrollTop() + window_to_scroll.height());
|
|
keep_pointer_in_view();
|
|
return process_hotkey;
|
|
case 27: // Esc: hide compose pane
|
|
hide_compose();
|
|
return process_hotkey;
|
|
case 67: // 'c': compose
|
|
compose_button();
|
|
return process_compose_hotkey;
|
|
case 82: // 'r': respond to zephyr
|
|
respond_to_zephyr();
|
|
return process_key_in_input;
|
|
|
|
case 71: // 'g': start of "go to" command
|
|
return process_goto_hotkey;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
var goto_hotkeys = {
|
|
67: narrow_by_recipient, // 'c'
|
|
73: narrow_instance, // 'i'
|
|
80: narrow_all_personals, // 'p'
|
|
65: show_all_messages, // 'a'
|
|
27: hide_compose // Esc
|
|
};
|
|
|
|
function process_goto_hotkey(code) {
|
|
if (code in goto_hotkeys)
|
|
goto_hotkeys[code]();
|
|
|
|
/* Always return to the initial hotkey mode, even
|
|
with an unrecognized "go to" command. */
|
|
return process_hotkey;
|
|
}
|
|
|
|
function process_key_in_input(code) {
|
|
if (code === 27) {
|
|
// User hit Escape key
|
|
hide_compose();
|
|
return process_hotkey;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function process_compose_hotkey(code) {
|
|
if (code === 9) { // Tab: toggle between class and huddle compose tabs.
|
|
toggle_compose();
|
|
return process_compose_hotkey;
|
|
} else {
|
|
keydown_handler = process_key_in_input;
|
|
simulate_keypress(code);
|
|
}
|
|
}
|
|
|
|
/* The current handler function for keydown events.
|
|
It should return a new handler, or 'false' to
|
|
decline to handle the event. */
|
|
var keydown_handler = process_hotkey;
|
|
|
|
$(document).keydown(function (event) {
|
|
var result = keydown_handler(event.keyCode);
|
|
if (typeof result === 'function') {
|
|
keydown_handler = result;
|
|
event.preventDefault();
|
|
}
|
|
});
|