gnome-shell/data/theme/gnome-shell-sass/_drawing.scss
Sam Hewitt b9359f4f07 style: High contrast fixes for buttons
- improves hover style; fixes #5765
- adds missing high contrast borders
- bumps colors for visibility

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2441>
2022-08-23 17:32:33 +00:00

334 lines
9.3 KiB
SCSS

// Drawing mixins
// generic drawing of more complex things
@function draw_widget_edge($c:$borders_edge) {
// outer highlight "used" on most widgets
@return 0 1px $c;
}
// provide font size in rem, with px fallback
@mixin fontsize($size: 24, $base: 16) {
font-size: round($size) + pt;
//font-size: ($size / $base) * 1rem;
}
@mixin draw_shadows($shadow1, $shadow2:none, $shadow3:none, $shadow4:none) {
//
// Helper function to stack up to 4 box-shadows;
//
@if $shadow4!=none { box-shadow: $shadow1, $shadow2, $shadow3, $shadow4; }
@else if $shadow3!=none { box-shadow: $shadow1, $shadow2, $shadow3; }
@else if $shadow2!=none { box-shadow: $shadow1, $shadow2; }
@else { box-shadow: $shadow1; }
}
// entries
@mixin entry($t, $fc:$selected_bg_color) {
//
// Entries drawing function
//
// $t: entry type
// $fc: focus color
//
// possible $t values:
// normal, focus, insensitive
//
@if $t==normal {
background-color: lighten($bg_color, 5%);
color: transparentize($fg_color,0.3);
border: 2px solid lighten($bg_color, 5%);
}
@if $t==focus {
background-color: mix(lighten($bg_color, 5%), $selected_bg_color, 95%);
border-color: $fc;
color: $fg_color;
&:hover {}
}
@if $t==hover {
background-color:lighten($hover_bg_color, 5%);
border-color:lighten($hover_bg_color, 5%);
color: transparentize($fg_color,0.3);
}
@if $t==insensitive {
background-color:lighten($insensitive_bg_color, 5%);
border-color: lighten($insensitive_bg_color, 5%);
color: $insensitive_fg_color;
}
}
// On-screen Keyboard
@mixin keyboard_key($t, $c:$osd_bg_color, $tc:$osd_fg_color) {
//
// Keyboard key drawing function
//
// $t: key type,
// $c: base key color for colored* types
// $tc: optional text color for colored* types
//
// possible $t values:
// normal, hover, active, insensitive, insensitive-active,
// backdrop, backdrop-active, backdrop-insensitive, backdrop-insensitive-active,
// osd, osd-hover, osd-active, osd-insensitive, osd-backdrop, undecorated
//
// normal key
@if $t==normal {
color: $tc;
background-color: lighten($c, 3%);
}
// focused key
@if $t==focus {
color: $tc;
background-color: mix(lighten($c, 3%), $selected_bg_color, 90%);
box-shadow: inset 0 0 0 2px transparentize($selected_bg_color, 0.4);
&:hover {
background-color: mix(lighten($c, 8%), $selected_bg_color, 90%);
box-shadow: inset 0 0 0 2px transparentize($selected_bg_color, 0.3);
}
&:active {
background-color: mix(lighten($c, 10%), $selected_bg_color, 90%);
box-shadow: inset 0 0 0 2px transparentize($selected_bg_color, 0.3);
}
}
// hover key
@else if $t==hover {
color: $tc;
background-color: lighten($c, 7%);
}
// active key
@else if $t==active {
color: $tc;
background-color: lighten($c, 10%);
}
// checked key
@else if $t==checked {
color: $tc;
background-color: lighten($c, 15%);
}
// insensitive key
@else if $t==insensitive {
color: $insensitive_fg_color;
background-color: $insensitive_bg_color;
}
// reset
@else if $t==undecorated {
background-color: transparent;
background-image: none;
}
}
//
// Button drawing function
//
// $t: button type,
// $c: base button colors, derived from fg_color
// $tc: base button colors, derived from fg_color
//
// possible $t values:
// normal, hover, active, insensitive, insensitive-active,
// backdrop, backdrop-active, backdrop-insensitive, backdrop-insensitive-active,
// osd, osd-hover, osd-active, osd-insensitive, osd-backdrop, undecorated
//
// since buttons are all flat an borderless now the mixin is simpler
@mixin button($t, $tc:$fg_color, $c:$bg_color) {
$button_bg_color: mix($tc, $c, $button_mix_factor);
transition-duration: 100ms;
// normal button
@if $t==normal {
color: $tc;
background-color: $button_bg_color;
@if $is_highcontrast == "true" {
box-shadow: inset 0 0 0 1px $button_inset_color;
}
}
// focused button
@if $t==focus {
color: $tc;
background-color: mix($button_bg_color, $selected_bg_color, 90%);
box-shadow: inset 0 0 0 2px transparentize($selected_bg_color, 0.4) !important;
&:hover {
background-color: mix(lighten($button_bg_color, 3%), $selected_bg_color, 90%);
box-shadow: inset 0 0 0 2px transparentize($selected_bg_color, 0.3) !important;
}
&:active {
background-color: mix(lighten($button_bg_color, 6%), $selected_bg_color, 90%);
box-shadow: inset 0 0 0 2px transparentize($selected_bg_color, 0.3) !important;
}
}
// hover button
@else if $t==hover {
color: $tc;
background-color: lighten($button_bg_color, 3%);
@if $is_highcontrast == "true" {
box-shadow: inset 0 0 0 1px lighten($button_inset_color, 3%);
background-color: mix(lighten($button_bg_color, 3%), $button_inset_color, 10%);
}
}
// active button
@else if $t==active {
color: $tc;
background-color: lighten($button_bg_color, 6%);
@if $is_highcontrast == "true" {
box-shadow: inset 0 0 0 1px lighten($button_inset_color, 6%);
background-color: mix(lighten($button_bg_color, 6%), $button_inset_color, 10%);
}
}
// checked button
@else if $t==checked {
color: $tc;
background-color: lighten($button_bg_color, 9%);
@if $is_highcontrast == "true" {
box-shadow: inset 0 0 0 1px lighten($button_inset_color, 9%);
background-color: mix(lighten($button_bg_color, 9%), $button_inset_color, 10%);
}
&:hover { background-color: lighten($button_bg_color, 12%);}
&:active { background-color: lighten($button_bg_color, 15%);}
}
// insensitive button
@else if $t==insensitive {
color: transparentize($tc, 0.5);
background-color: transparentize($tc, .95);
@if $is_highcontrast == "true" {
box-shadow: inset 0 0 0 1px transparentize($button_inset_color, 0.5);
}
}
// default/suggested button
@else if $t==default {
background-color: $selected_bg_color;
color: $selected_fg_color;
box-shadow: none;
&:focus {
box-shadow: inset 0 0 0 2px lighten($selected_bg_color, 10%);
}
&:hover, &:focus {
background-color: lighten($selected_bg_color, 5%);
color: lighten($selected_fg_color, 5%);
}
&:active {
background-color: darken($selected_bg_color, 7%);
color: darken($selected_fg_color, 7%);
}
&:insensitive {
@include button(insensitive);
background-color: transparentize($selected_bg_color, .5);
color: transparentize($selected_fg_color, .5);
}
}
// reset
@else if $t==undecorated {
background-color: transparent;
background-color: none;
box-shadow: none;
&:insensitive {
@include button(insensitive);
background-color: transparent;
color: transparentize($selected_fg_color, .5);
}
}
}
// tile
@mixin tile_button($color, $flat: true) {
@extend %tile;
@if $flat {
background-color: transparent;
} @else {
background-color: transparentize($color, .84);
}
&:hover { background-color: transparentize($color, .9);}
&:selected, &:focus {
background-color: transparentize($color, .87);
&:hover { background-color: transparentize($color, .84);}
&:active { background-color: transparentize($color, .87);}
}
&:active { background-color: transparentize($color, .84);}
&:outlined, &:checked {
background-color: transparentize($color, .81);
&:active { background-color: transparentize($color, .78);}
&:hover { background-color: transparentize($color, .75);}
}
&:drop {
border: 2px solid transparentize($selected_bg_color, .2); //already 2px transparent so no jumping
background-color: transparentize($selected_bg_color, .8);
}
}
// overview icon, dash, app grid
@mixin overview_icon($color, $flat: true) {
transition-duration: 400ms;
.overview-icon { @extend %tile; }
@if $flat {
.overview-icon { background-color: transparent;}
} @else {
.overview-icon { background-color: transparentize($color, .81);}
}
&:hover .overview-icon { background-color: transparentize($color, .9);}
&:selected .overview-icon,
&:focus .overview-icon {
background-color: transparentize($color, .87);
&:hover .overview-icon { background-color: transparentize($color, .84);}
&:active .overview-icon { background-color: transparentize($color, .87);}
}
&:active .overview-icon { background-color: transparentize($color, .84);}
&:outlined .overview-icon,
&:checked .overview-icon {
background-color: transparentize($color, .81);
&:active .overview-icon { background-color: transparentize($color, .78);}
&:hover .overview-icon { background-color: transparentize($color, .75);}
}
&:drop .overview-icon {
border: 2px solid transparentize($selected_bg_color, .2); //already 2px transparent so no jumping
background-color: transparentize($selected_bg_color, .8);
}
}
// styling for elements within popovers that look like notifications
@mixin card($flat: false) {
border-radius: $base_border_radius;
margin: $base_margin;
box-shadow: 0 1px 1px 0 $shadow_color;
@if $flat {
@include button(undecorated);
box-shadow: none !important;
} @else {
@include button(normal, $c:$card_bg_color);
}
&:focus {
@include button(focus, $c:$card_bg_color);
}
&:hover {
@include button(hover, $c:$card_bg_color);
}
&:active {
@include button(active, $c:$card_bg_color);
}
}