Files
zulip/static/js/scroll_bar.js
Aman Agrawal e941ee4a15 media_query: Use 767px instead of 775px as md breakpoint.
We use 767px for hiding left column.

The components changed here were tested to be working fine.

This change is not likely to introduce any regression as the
calculations in the components here were not dependent upon the
breakpoint being at 775px.
2021-01-25 14:49:32 -08:00

96 lines
3.4 KiB
JavaScript

"use strict";
const {media_breakpoints} = require("./css_variables");
// A few of our width properties in Zulip depend on the width of the
// browser scrollbar that is generated at the far right side of the
// page, which unfortunately varies depending on the browser and
// cannot be detected directly using CSS. As a result, we adjust a
// number of element widths based on the value detected here.
//
// From https://stackoverflow.com/questions/13382516/getting-scroll-bar-width-using-javascript
function getScrollbarWidth() {
const outer = document.createElement("div");
outer.style.visibility = "hidden";
outer.style.width = "100px";
outer.style.msOverflowStyle = "scrollbar"; // needed for WinJS apps
document.body.append(outer);
const widthNoScroll = outer.offsetWidth;
// force scrollbars
outer.style.overflow = "scroll";
// add innerdiv
const inner = document.createElement("div");
inner.style.width = "100%";
outer.append(inner);
const widthWithScroll = inner.offsetWidth;
// remove divs
outer.remove();
return widthNoScroll - widthWithScroll;
}
let sbWidth;
exports.initialize = function () {
// Workaround for browsers with fixed scrollbars
sbWidth = getScrollbarWidth();
if (sbWidth > 0) {
$(".header").css("left", "-" + sbWidth + "px");
$(".header-main").css("left", sbWidth + "px");
$(".header-main .column-middle").css("margin-right", 250 + sbWidth + "px");
$(".fixed-app").css("left", "-" + 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"});
$("#keyboard-icon").css({right: sbWidth + 35 + "px"});
$("head").append(
"<style> @media (max-width: " +
media_breakpoints["xl-max"] +
") { .compose-content, .header-main .column-middle { margin-right: " +
(7 + sbWidth) +
"px !important; } } " +
"@media (max-width: " +
media_breakpoints["xl-max"] +
") { .fixed-app .column-middle { margin-left: " +
(7 + sbWidth) +
"px !important; } } " +
"</style>",
);
}
exports.set_layout_width();
};
exports.set_layout_width = function () {
// This logic unfortunately leads to a flash of mispositioned
// content when reloading a Zulip browser window. More details
// are available in the comments on the max-width of 1400px in
// the .app-main CSS rules.
if (page_params.fluid_layout_width) {
$(".header-main").css("max-width", "inherit");
$(".app .app-main").css("max-width", "inherit");
$(".fixed-app .app-main").css("max-width", "inherit");
$("#compose-container").css("max-width", "inherit");
} else {
$(".header-main").css("max-width", 1400 + sbWidth + "px");
$(".app .app-main").css("max-width", 1400 + "px");
$(".fixed-app .app-main").css("max-width", 1400 + sbWidth + "px");
$("#compose-container").css("max-width", 1400 + sbWidth + "px");
}
};
window.scroll_bar = exports;