zulip/static/js/scroll_bar.js

69 lines
2.4 KiB
JavaScript

var scroll_bar = (function () {
var exports = {};
// From https://stackoverflow.com/questions/13382516/getting-scroll-bar-width-using-javascript
function getScrollbarWidth() {
var outer = document.createElement("div");
outer.style.visibility = "hidden";
outer.style.width = "100px";
outer.style.msOverflowStyle = "scrollbar"; // needed for WinJS apps
document.body.appendChild(outer);
var widthNoScroll = outer.offsetWidth;
// force scrollbars
outer.style.overflow = "scroll";
// add innerdiv
var inner = document.createElement("div");
inner.style.width = "100%";
outer.appendChild(inner);
var widthWithScroll = inner.offsetWidth;
// remove divs
outer.parentNode.removeChild(outer);
return widthNoScroll - widthWithScroll;
}
exports.initialize = function () {
// Workaround for browsers with fixed scrollbars
var sbWidth = getScrollbarWidth();
if (sbWidth > 0) {
$(".header").css("left", "-" + sbWidth + "px");
$(".header-main").css("left", sbWidth + "px");
$(".header-main").css("max-width", 1400 + sbWidth + "px");
$(".header-main .column-middle").css("margin-right", 250 + sbWidth + "px");
$(".fixed-app").css("left", "-" + sbWidth + "px");
$(".fixed-app .app-main").css("max-width", 1400 + sbWidth + "px");
$(".fixed-app .column-middle").css("margin-left", 250 + sbWidth + "px");
$(".column-right").css("right", sbWidth + "px");
$(".app-main .right-sidebar").css({"margin-left": sbWidth + "px",
width: 250 - sbWidth + "px"});
$("#compose").css("left", "-" + sbWidth + "px");
$(".compose-content").css({left: sbWidth + "px",
"margin-right": 250 + sbWidth + "px"});
$("#compose-container").css("max-width", 1400 + sbWidth + "px");
$('#sidebar-keyboard-shortcuts #keyboard-icon').css({right: sbWidth + 13 + "px"});
$("head").append("<style> @media (max-width: 1025px) { .compose-content, .header-main .column-middle { margin-right: " + (7 + sbWidth) + "px !important; } } " +
"@media (max-width: 775px) { .fixed-app .column-middle { margin-left: " + (7 + sbWidth) + "px !important; } } " +
"</style>");
}
ui.set_up_scrollbar($("#stream-filters-container"));
};
return exports;
}());
if (typeof module !== 'undefined') {
module.exports = scroll_bar;
}