
/****************
 * Mate Desktop *
 ****************/

//
// Atril (MATE pdf viewer)
//
.atril-window .primary-toolbar toolbar {
  background: none;
}


//
// Mate OSD Window
//
MsdOsdWindow.background.osd {
  border-radius: $bt_radius;
  border: 1px solid darken($osd_bg_color, 8%);

  .progressbar {
    background-color: $selected_bg_color;
    border: none;
    border-color: red;
    border-radius: 5px;
  }
  .trough {
    background-color: darken($osd_bg_color, 5%);
    border: none;
    border-radius: 5px;
  }
}

//
// Mate/Gnome Flashback Panel
//
.mate-panel-menu-bar,
panel-toplevel.background {
  &, menubar { background-color: opacify($panel_bg, 1); }

  // menubar,
  // #PanelApplet label,
  // #PanelApplet image { color: $panel_fg; }

  // Panel buttons
  button,
  button#tasklist-button {
    @extend %panelbutton;
    label, image { color: inherit; }
  }

  .wnck-pager {
    color: mix($panel_fg, black, 50%);
    background-color: darken($panel_bg, 10%);

    &:hover {
      background-color: lighten($panel_bg, 5%);
    }

    &:selected {
      color: lighten($selected_bg_color, 20%);
      background-color: $selected_bg_color;
    }
  }

  na-tray-applet {
    -NaTrayApplet-icon-padding: 0;
    -NaTrayApplet-icon-size: 16px;
  }
}

//
//  * Mate-Panel *
//

// Most parts are themed in Gnome-panel section
PanelToplevel.background {
  color: $panel_fg;
  background-color: opacify($panel_bg, 1);
}

#PanelWidget,
#PanelPlug,
#PanelApplet {
  color: $panel_fg;
  background-color: $panel_bg; // >= 1.18.6
}

PanelSeparator {
  border-width: 0;
  background: none;
  background-image: none;
  color: rgba(white, 0.1);
}

@each $layout, $size, $dir in (horizontal, 7px 14px, right),
                              (vertical, 14px 7px, bottom) {
  // a grip
  PanelToplevel.#{$layout} MatePanelAppletFrameDBus {
    background-image: linear-gradient(to #{$dir},
                        transparent 2px,
                        rgba(white, 0.1) 2px,
                        rgba(white, 0.1) 3px,
                        transparent 3px,
                        transparent 4px,
                        rgba(white, 0.1) 4px,
                        rgba(white, 0.1) 5px,
                        transparent 5px,
                        transparent 7px);
    background-repeat: no-repeat;
    background-size: #{$size};

    @if $layout == horizontal {
      &:dir(ltr) { background-position: left center; }
      &:dir(rtl) { background-position: right center; }
    }
    @else if $layout == vertical { background-position: center top; }
  }
}

// 'hide' arrow buttons
PanelToplevel.mate-panel-menu-bar > grid.horizontal > button {
  @include button(undecorated);
  min-height: 4px;
  min-width: 4px;
  padding: 0;
  border-radius: 0;
  border-style: solid;
  border-color: rgba(white, 0.1);
  -gtk-outline-radius: 0;
  background-color: transparent;
  color: $panel_fg;
  &:hover {
    background-color: transparent;
    color: $selected_fg_color;
  }
  &:active {
    background-color: transparent;
    color: $selected_fg_color;
  }
  &:disabled {
    color: rgba($panel_fg, 0.45);
  }
  &:checked {
    background-color: transparent;
    color: $selected_fg_color;
  }

  > image {
    padding: 0 4px;
  }

  &:first-child {
    &:dir(ltr) { border-width: 0 1px 0 0; }
    &:dir(rtl) { border-width: 0 0 0 1px; }
  }
  &:not(:first-child) {
    &:dir(ltr) { border-width: 0 0 0 1px; }
    &:dir(rtl) { border-width: 0 1px 0 0; }
  }
}

.mate-panel-menu-bar {
  menubar,
  #PanelApplet-window-menu-applet-button {
    @extend %panel_menubar;
  }

  #clock-applet-button label {
    // embed padding into label node directly (x 1.5)
    padding: 0 6px;
  }
}

.mate-panel-menu-bar.vertical { // vertical layout
  menubar,
  #PanelApplet-window-menu-applet-button {
    > menuitem {
      padding: 4px 0;
      &:hover { box-shadow: inset 2px 0 $selected_bg_color; }
    }
  }

  #tasklist-button,
  #clock-applet-button,
  #showdesktop-button {
    &:hover { box-shadow: inset 2px 0 rgba(white, 0.1); }
    &:checked,
    &:hover:checked { box-shadow: inset 2px 0 $selected_bg_color; }
  }

  #clock-applet-button label { padding: 6px 0; }
}

// Brisk-Menu applet
.mate-panel-menu-bar button.flat.toggle {
  &.brisk-button {
    padding: 0 4px;
    border-radius: 0;
    -gtk-outline-radius: 0;
    background-image: none;
    background-color: transparent;
    color: $panel_fg;
    font-weight: 700;
    &:hover {
      background-image: none;
      color: $selected_fg_color;
      box-shadow: inset 0 -2px rgba(white, 0.1);
    }
    &:active { animation: none; }
    &:checked {
      background-image: none;
      color: $selected_fg_color;
      box-shadow: inset 0 -2px $selected_bg_color;
    }
  }

  // vertical panel mode?
  &.brisk-button-vertical {
    padding: 0;
    &:hover { box-shadow: inset 2px 0 rgba(white, 0.1); }
    &:checked { box-shadow: inset 2px 0 $selected_bg_color; }
  }
}

.brisk-menu {
  // border-top: 1px solid $highlight_color;

  entry { margin: rem(4px); } // search-entry

  box.horizontal scrolledwindow { // right-pane
    &:dir(ltr) { margin: rem(4px) rem(4px) rem(4px) 0; }
    &:dir(rtl) { margin: rem(4px) 0 rem(4px) rem(4px); }
  }

  .categories-list { // left-pane
    &:dir(ltr) { margin: rem(4px) 0 rem(4px) rem(4px); }
    &:dir(rtl) { margin: rem(4px) rem(4px) rem(4px) 0; }

    button.flat {
      padding-top: unset;
      padding-bottom: unset;
      border-radius: $bt_radius;
      -gtk-outline-radius: 0;
      font-weight: 500;
      transition-duration: 0.1s; // shorter duration
      // almost covers :hover pseudo-class
      &:checked {
        background-color: $selected_bg_color;
        color: $selected_fg_color;
      }

      image { padding: rem(8px) 0; }
      // for finer base-lines
      label { padding-bottom: rem(0.7px); }
    }
  }

  // hide separator above session-buttons
  box.vertical > box.horizontal > box.vertical > separator.horizontal {
    min-height: 0;
    background-color: transparent;
  }

  list.content-view.view { // right-pane
    background-color: $base_color;

    row.activatable {
      padding: 0;
      background-image: none;
      transition-duration: 0s;

      > button.flat {
        padding-top: unset;
        padding-bottom: unset;
        border-radius: 0; // remove roundness
        -gtk-outline-radius: 0;
        font-weight: 400;
        transition-duration: 0s; // needs quicker response
        border: none;

        &:hover {
          background-color: rgba($fg_color, 0.06);
        }

        &:active {
          background-color: rgba($fg_color, 0.1);
          color: $fg_color;
        }

        // set vertical padding with icon's padding
        > box.horizontal > image { padding: rem(5.3px) 0; }
      }
    }
  }
}

.mate-panel-applet-slider {
  background-color: transparent;

  frame { // draw actual widget
    border-width: 1px;
    border-style: solid;
    border-color: $borders_color;
    border-radius: $bt_radius;
    background-color: $bg_color;

    // unset borders
    *,
    > border { border: unset; }
  }
}


//
//  * Mate-Terminal *
//

// .mate-terminal {
//   notebook > header.top { }
// }

//
// Caja
//
.caja-desktop { @extend %nautilus-desktop-canvas-item; }
.caja-notebook { border-top: 1px solid $borders_color; }
.caja-side-pane .frame { border-width: 1px 0 0; }
.caja-notebook .frame { border-width: 0 0 1px; }

.caja {
  &-canvas-item { border-radius: $bt_radius; }

  &-list-dim-label { @extend .nautilus-list-dim-label; }
}

.caja-desktop { // desktop icon-grid styling
  &.caja-canvas-item { @extend %nautilus-desktop-canvas-item; }

  > widget.entry { // = EelEditableLabel.entry
    &, &:focus {
      transition: none;

      &:selected { // FIXME: selection node doesn't work?
        @extend %selected_items;
      }
    }
  }
}

.caja-navigation-window {
  toolbar#Toolbar.primary-toolbar {
    background-color: $header_bg;
    color: $header_fg;
    @extend %header_widgets;

    // button { }
  }
}

//
//  * Mate-Control-Center *
//

// almost out of control, and looks ugly
window#MyControlCenter > frame > box.horizontal {
  > widget > scrolledwindow.frame {
    border: none;
    // draw pane-separator with borders
    // FIXME: rendering quality is quite poor
    &:dir(ltr) { border-left: 1px solid $solid_borders_color; }
    &:dir(rtl) { border-right: 1px solid $solid_borders_color; }

    > widget.view { // content-view
      all: unset;
      background-color: $bg_color; // does not work
    }
  }
}


//
//  * Mate-Tweak *
//

.background:not(.csd) > box.horizontal {
  > notebook { // right-pane
    // remove unwanted frames/borders
    &.frame {
      border: none;

      > stack {
        border-width: 1px;
        border-style: solid;
        border-color: $bg_color;
        box-shadow: none;
        &:dir(ltr) { border-left-color: $solid_borders_color; }
        &:dir(rtl) { border-right-color: $solid_borders_color; }
      }
    }
  }
}

//
//  * Eom *
//

.eom-window {
  statusbar { // always use dark-variant
    margin: 0 -10px; // hide weird lateral gaps
    padding: 0 rem(6.7px);
    background-color: $osd_bg_color;
    color: $osd_fg_color;
  }
}

//
// Pluma
//
.pluma-window statusbar frame > border { border: none; }
.pluma-window notebook > stack scrolledwindow { border-width: 0 0 1px 0; }

#pluma-status-combo-button {
  min-height: 0;
  padding: 0;

  border-top: none;
  border-bottom: none;
  border-radius: 0;
}

//
//  * Atril/Xreader *
//

.atril-window,
.xreader-window {
  scrolledwindow.frame {
    border-style: solid none none;

    > .view { // = evview?
      transition: none;
      &:selected,
      &:active { @extend %selected_items; }
    }
  }

  toolbar > toolbutton button.flat.image-button { // back to square buttons
    border-radius: $bt_radius;
    -gtk-outline-radius: $bt_radius;
  }

  // 'presentation' mode fullscreen?
  &.fullscreen.background > box.vertical {
    background-color: black; // turn to pitch-black
    transition-duration: 0s; // unset transitions

    // use opaque borders
    > toolbar:not(.primary-toolbar).horizontal {
      border-bottom-color: $solid_borders_color;
    }

    // revert to standard backgrounds
    > paned.horizontal { background-color: $bg_color; }
  }
}

//
//  * Mate-MediaControl-OSD *
///

// OSDs are much blurred?
MsdOsdWindow {
  &.background.osd {
    border-radius: $bt_radius;
    border: 1px solid $osd_borders_color;
    background-color: $osd_bg_color;
    box-shadow: none;

    // FIXME: seems images have inverted fore/back colours?
    image { color: $osd_fg_color; }

    .trough {
      border-radius: 0;
      border: none;
      background-color: rgba($osd_fg_color, 0.2);
    }

    .progressbar {
      border-radius: 0;
      border: none;
      background-color: $success_color;
    }
  }
}

//
//  * Mate-Notification-Slate *
//

// use budgie-style OSDs
.slate-notification {
  &-window {
    @extend .budgie-notification-window;

    .drop-shadow {
      margin: 4px 6px 10px; // enlarge the shadow area
      border-radius: $bt_radius;
    }
  }

  @extend .budgie-notification;
  border-radius: $bt_radius;
}
