Signal-Desktop/stylesheets/_titlebar.scss

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SCSS

// Copyright 2022 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
body {
// Overriden by ts/background.ts
--zoom-factor: 1;
// These should match the logic in `ts/types/Settings.ts`'s `getTitleBarVisibility`.
//
// It'd be great if we could use the `:fullscreen` selector here, but that does not seem
// to work with Electron, at least on macOS.
--title-bar-drag-area-height: 0px; // Needs to have a unit to work with `calc()`.
--draggable-app-region: initial;
&.os-macos:not(.full-screen) {
--title-bar-drag-area-height: calc(28px / var(--zoom-factor));
--draggable-app-region: drag;
}
--window-height: 100vh;
--window-width: 100vw;
--unscaled-window-border: 0px;
--window-border: calc(var(--unscaled-window-border) / var(--zoom-factor));
--titlebar-height: 0px;
&.os-has-custom-titlebar {
&:not(.maximized) {
--unscaled-window-border: 1px;
}
--titlebar-height: calc(28px / var(--zoom-factor));
--window-width: calc(100vw - 2 * var(--window-border));
--window-height: calc(
100vh - var(--titlebar-height) - 2 * var(--window-border)
);
}
}