mirror of https://github.com/zulip/zulip.git
93 lines
2.6 KiB
JavaScript
93 lines
2.6 KiB
JavaScript
var hashchange = (function () {
|
|
|
|
var exports = {};
|
|
|
|
var expected_hash = false;
|
|
|
|
exports.changehash = function (newhash) {
|
|
expected_hash = newhash;
|
|
// Some browsers reset scrollTop when changing the hash to "",
|
|
// so we save and restore it.
|
|
// http://stackoverflow.com/questions/4715073/window-location-hash-prevent-scrolling-to-the-top
|
|
var scrolltop;
|
|
if (newhash === "") {
|
|
scrolltop = viewport.scrollTop();
|
|
}
|
|
window.location.hash = newhash;
|
|
util.reset_favicon();
|
|
if (newhash === "") {
|
|
viewport.scrollTop(scrolltop);
|
|
}
|
|
};
|
|
|
|
exports.save_narrow = function (operators) {
|
|
if (operators === undefined) {
|
|
exports.changehash('#');
|
|
} else {
|
|
var new_hash = '#narrow';
|
|
$.each(operators, function (idx, elem) {
|
|
new_hash += '/' + encodeURIComponent(elem[0])
|
|
+ '/' + encodeURIComponent(elem[1]);
|
|
});
|
|
exports.changehash(new_hash);
|
|
}
|
|
};
|
|
|
|
function parse_narrow(hash) {
|
|
var i, operators = [];
|
|
for (i=1; i<hash.length; i+=2) {
|
|
// We don't construct URLs with an odd number of components,
|
|
// but the user might write one.
|
|
var operator = decodeURIComponent(hash[i]);
|
|
var operand = decodeURIComponent(hash[i+1] || '');
|
|
operators.push([operator, operand]);
|
|
}
|
|
// The narrowbar description here is bogus, but it's going away in
|
|
// a subsequent commit.
|
|
narrow.activate(operators, {icon: 'search', description: 'FIXME'});
|
|
}
|
|
|
|
// Returns true if this function performed a narrow
|
|
function hashchanged() {
|
|
// If window.location.hash changed because our app explicitly
|
|
// changed it, then we don't need to do anything.
|
|
// (This function only neds to jump into action if it changed
|
|
// because e.g. the back button was pressed by the user)
|
|
if (window.location.hash === expected_hash) {
|
|
return false;
|
|
}
|
|
|
|
var hash = window.location.hash.split("/");
|
|
switch (hash[0]) {
|
|
case "#narrow":
|
|
ui.change_tab_to("#home");
|
|
parse_narrow(hash);
|
|
ui.update_floating_recipient_bar();
|
|
return true;
|
|
case "":
|
|
case "#":
|
|
ui.change_tab_to("#home");
|
|
narrow.show_all_messages();
|
|
ui.update_floating_recipient_bar();
|
|
break;
|
|
case "#subscriptions":
|
|
ui.change_tab_to("#subscriptions");
|
|
break;
|
|
case "#settings":
|
|
ui.change_tab_to("#settings");
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
exports.initialize = function () {
|
|
window.onhashchange = hashchanged;
|
|
if (hashchanged()) {
|
|
load_more_messages();
|
|
}
|
|
};
|
|
|
|
return exports;
|
|
|
|
}());
|