gnome-shell/data/theme/gnome-shell-sass/_drawing.scss
nana-4 60f12da3cd theme: Simplify .overview-icon styling
This reduces duplicate code by using overview-icon() and %app-well-app
to improve maintainability.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/957
2020-02-06 20:31:42 +00:00

232 lines
5.9 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, $edge: $borders_edge) {
//
// Entries drawing function
//
// $t: entry type
// $fc: focus color
// $edge: set to none to not draw the bottom edge or specify a color to not use the default one
//
// possible $t values:
// normal, focus, insensitive
//
@if $t==normal {
background-color: $base_color;
border-color: $borders_color;
}
@if $t==focus {
border-color: if($fc==$selected_bg_color,
$selected_borders_color,
darken($fc,35%));
box-shadow: inset 0 0 0 1px $fc;
}
@if $t==hover { }
@if $t==insensitive {
color: $insensitive_fg_color;
border-color: $insensitive_bg_color;
box-shadow: none;
}
}
// buttons
@function draw_border_color ($c) {
//
// colored buttons want the border form the base color
//
@return if($variant == 'light', darken($c, 18%), darken($c, 4%));
}
@function draw_text_shadow_color ($tc:$fg_color, $bg:$bg_color) {
//
// calculate the color of text shadows
//
// $tc is the text color
// $bg is the background color
//
$lbg: lightness($bg)/100%;
@if lightness($tc)<50% { @return rgba(255,255,255,$lbg/($lbg*1.3)); }
@else { @return rgba(0,0,0,1-$lbg*0.8); }
}
@function draw_button_hilight_color($c) {
//
// calculate the right top hilight color for buttons
//
// $c: base color;
//
@if lightness($c)>90% { @return white; }
@else if lightness($c)>80% { @return rgba(255,255,255, 0.7); }
@else if lightness($c)>50% { @return rgba(255,255,255, 0.5); }
@else if lightness($c)>40% { @return rgba(255,255,255, 0.3); }
@else { @return rgba(255,255,255, 0.1); }
}
@mixin draw_button_text_shadow ($tc:$fg_color, $bg:$bg_color) {
//
// helper function for the text emboss effect
//
// $tc is the optional text color, not the shadow color
//
// TODO: this functions needs a way to deal with special cases
//
$shadow: draw_text_shadow_color($tc, $bg);
@if lightness($tc)<50% {
text-shadow: 0 1px $shadow;
icon-shadow: 0 1px $shadow;
}
@else {
text-shadow: 0 -1px $shadow;
icon-shadow: 0 -1px $shadow;
}
}
@mixin button($t, $c:$bg_color, $tc:$fg_color, $edge: $borders_edge, $shadow: $shadow_color) {
//
// Button drawing function
//
// $t: button type,
// $c: base button color for colored* types
// $tc: optional text color for colored* types
// $edge: set to none to not draw the bottom edge or specify a color to not
// use the default one
// $shadow: set to none to not draw the drop shadow or specify a color to not
// use the default one
//
// 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
//
$hilight_color: draw_button_hilight_color($c);
$button_edge: if($edge == none, none, draw_widget_edge($edge));
$blank_edge: if($edge == none, none, draw_widget_edge(transparentize($edge,1)));
$button_shadow: if($shadow == none, none, 0 1px 1px 0 $shadow);
// normal button
@if $t==normal {
color: $tc;
background-color: lighten($c, 3%);
border-color: draw_border_color($c);
@include draw_shadows($button_shadow);
// box-shadow: 0 1px 1px 0 rgba(0,0,0,0.1);
text-shadow: 0 1px $text_shadow_color;
icon-shadow: 0 1px $text_shadow_color;
}
// focused button
@if $t==focus {
color: $tc;
text-shadow: 0 1px $text_shadow_color;
icon-shadow: 0 1px $text_shadow_color;
box-shadow: inset 0 0 0 2px transparentize($selected_bg_color, 0.7);
//border-color: $selected_bg_color;
}
// hover button
@else if $t==hover {
color: $tc;
background-color: lighten($c, if($variant == 'light', 8%, 5%));
border-color: if($variant == 'light', draw_border_color(lighten($c, 7%)), draw_border_color($c));
@include draw_shadows($button_shadow);
text-shadow: 0 1px $text_shadow_color;
icon-shadow: 0 1px $text_shadow_color;
}
// active button
@else if $t==active {
color: $tc;
background-color: darken($c,3%);
border-color: draw_border_color(if($variant == 'light', $c, darken($c,7%)));
text-shadow: none;
icon-shadow: none;
box-shadow: none;
}
// insensitive button
@else if $t==insensitive {
color: $insensitive_fg_color;
border-color: $insensitive_borders_color;
background-color: $insensitive_bg_color;
box-shadow: none;
text-shadow: none;
icon-shadow: none;
}
// reset
@else if $t==undecorated {
border-color: transparent;
background-color: transparent;
background-image: none;
@include draw_shadows(inset 0 1px rgba(255,255,255,0),$blank_edge);
text-shadow: none;
icon-shadow: none;
}
}
// overview icons
@mixin overview-icon($color) {
.overview-icon {
@extend %icon_tile;
color: $color;
}
&:hover,
&:selected {
.overview-icon {
background-color: transparentize($color, .9);
}
}
&:focus {
.overview-icon {
background-color: transparentize($color, .7);
// border-color: $selected_bg_color;
}
}
&:drop {
.overview-icon {
background-color: transparentize($selected_bg_color, .15);
}
}
&:active,
&:checked {
.overview-icon {
background-color: transparentize(darken($osd_bg_color, 10%), .5);
}
}
}