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Use pushState where supported to change the URL hash

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This this removed one forced relayout of the page on unnarrow. This
saves about 100ms for me.

(imported from commit 0755f425abbe3d99b8a99765549a5bbf3c620b9a)
This commit is contained in:
Jason Michalski
2014-01-29 16:14:00 -05:00
parent fcb8c106b1
commit bd9cccffce
2 changed files with 14 additions and 4 deletions
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16
static/js/hashchange.js
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@@ -19,13 +19,23 @@ function decodeHashComponent(str) {
return decodeURIComponent(str.replace(/\./g, '%'));
}
function set_hash(hash) {
if (history.pushState) {
console.log(window.location);
// Build a full URL to not have same origin problems
var url = window.location.origin + window.location.pathname + hash;
history.pushState(null, null, url);
} else {
window.location.hash = hash;
}
}
exports.changehash = function (newhash) {
if (changing_hash) {
return;
}
$(document).trigger($.Event('hashchange.zulip'));
expected_hash = newhash;
window.location.hash = newhash;
set_hash(newhash);
util.reset_favicon();
};
@@ -115,7 +125,7 @@ function do_hashchange(from_reload) {
if (operators === undefined) {
// If the narrow URL didn't parse, clear
// window.location.hash and send them to the home tab
window.location.hash = '';
set_hash('');
activate_home_tab();
return false;
}