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Disable hotkeys during the tutorial.

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We don't want you accidentally arrowing around.

(imported from commit 6a1d18c40833007439c5c54849598438f04b13b1)
This commit is contained in:
Jessica McKellar
2013-07-02 13:58:44 -04:00
parent 04001fdc64
commit 58780f0637
1 changed files with 23 additions and 0 deletions
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23
zephyr/static/js/tutorial.js
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@@ -2,6 +2,7 @@ var tutorial = (function () {
var exports = {};
var is_running = false;
var event_handlers = {};
// We'll temporarily set stream colors for the streams we use in the demo
// tutorial messages.
@@ -114,6 +115,26 @@ var fake_messages = [
}
];
function disable_event_handlers() {
$('body').css({'overflow':'hidden'}); // prevents scrolling the feed
$.each(["keydown", "keyup", "keypress", "scroll"], function (idx, event_name) {
var existing_events = $(document).data("events")[event_name];
if (existing_events === undefined) {
existing_events = [];
}
event_handlers[event_name] = existing_events;
$(document).data("events")[event_name] = [];
});
}
function enable_event_handlers() {
$('body').css({'overflow':'auto'}); // enables scrolling the feed
$.each(["keydown", "keyup", "keypress", "scroll"], function (idx, event_name) {
var new_events = $(document).data("events")[event_name];
$(document).data("events")[event_name] = event_handlers[event_name].concat(new_events);
});
}
function set_tutorial_status(status, callback) {
return $.ajax({
type: 'POST',
@@ -192,6 +213,7 @@ function finale() {
subs.stream_info(real_stream_info);
util.show_first_run_message();
current_msg_list.rerender();
enable_event_handlers();
}
function reply() {
@@ -327,6 +349,7 @@ exports.start = function () {
subs.stream_info(tutorial_stream_info);
// Add the fake messages to the feed and get started.
current_msg_list.add_and_rerender(fake_messages);
disable_event_handlers();
is_running = true;
set_tutorial_status("started");
welcome();