@import "./fab.vars";
@import "../fab-list/fab-list.vars";

// Floating Action Button Container
// --------------------------------------------------

:host {
  position: absolute;

  width: fit-content;
  height: fit-content;

  z-index: $z-index-fixed-content;
}

// FAB Horizontal Positioning
// --------------------------------------------------

:host(.fab-horizontal-center) {
  @include position(null, 0px, null, 0px);
  @include margin(null, auto);
}

:host(.fab-horizontal-start) {
  /* stylelint-disable */
  @include ltr() {
    left: calc(#{$fab-content-margin} + var(--ion-safe-area-left, 0px));
  }

  @include rtl() {
    right: calc(#{$fab-content-margin} + var(--ion-safe-area-right, 0px));
    left: unset;
  }
  /* stylelint-enable */
}

:host(.fab-horizontal-end) {
  /* stylelint-disable */
  @include ltr() {
    right: calc(#{$fab-content-margin} + var(--ion-safe-area-right, 0px));
  }

  @include rtl() {
    left: calc(#{$fab-content-margin} + var(--ion-safe-area-left, 0px));
    right: unset;
  }
  /* stylelint-enable */
}

// FAB Vertical Positioning
// --------------------------------------------------

:host(.fab-vertical-top) {
  top: $fab-content-margin;
}

/**
 * Reset the top value since edge
 * styles use margin-top.
 */
:host(.fab-vertical-top.fab-edge) {
  top: 0;
}

/**
 * We need to adjust the parent FAB button up by half
 * its height so that half of it sits on the header. As a result,
 * we target the slotted ion-fab-button instead of targeting the host.
 */
:host(.fab-vertical-top.fab-edge) ::slotted(ion-fab-button) {
  margin-top: -50%;
}

/**
 * The small FAB button adds top and bottom margin. We need to account for
 * that margin when we adjust the FAB button for edge styles since we
 * are overriding the margin-top value below.
 */
:host(.fab-vertical-top.fab-edge) ::slotted(ion-fab-button.fab-button-small) {
  margin-top: calc((-100% + $fab-button-small-margin * 2) / 2);
}

/**
 * Since we are adjusting the FAB button we also need
 * to adjust the sibling ion-fab-list otherwise there will be
 * a gap between the parent FAB button and the associated list.
 */
:host(.fab-vertical-top.fab-edge) ::slotted(ion-fab-list.fab-list-side-start),
:host(.fab-vertical-top.fab-edge) ::slotted(ion-fab-list.fab-list-side-end) {
  @include margin(-50%, null, null, null);
}

:host(.fab-vertical-top.fab-edge) ::slotted(ion-fab-list.fab-list-side-top),
:host(.fab-vertical-top.fab-edge) ::slotted(ion-fab-list.fab-list-side-bottom) {
  @include margin(calc(50% + #{$fab-list-margin}) null, null, null);
}

:host(.fab-vertical-bottom) {
  bottom: $fab-content-margin;
}

/**
 * Reset the bottom value since edge
 * styles use margin-bottom.
 */
:host(.fab-vertical-bottom.fab-edge) {
  bottom: 0;
}

/**
 * We need to adjust the parent FAB button down by half
 * its height so that half of it sits on the footer. As a result,
 * we target the slotted ion-fab-button instead of targeting the host.
 */
:host(.fab-vertical-bottom.fab-edge) ::slotted(ion-fab-button) {
  margin-bottom: -50%;
}

/**
 * The small FAB button adds top and bottom margin. We need to account for
 * that margin when we adjust the FAB button for edge styles since we
 * are overriding the margin-bottom value below.
 */
:host(.fab-vertical-bottom.fab-edge) ::slotted(ion-fab-button.fab-button-small) {
  margin-bottom: calc((-100% + $fab-button-small-margin * 2) / 2);
}

/**
 * Since we are adjusting the FAB button we also need
 * to adjust the sibling ion-fab-list otherwise there will be
 * a gap between the parent FAB button and the associated list.
 */
:host(.fab-vertical-bottom.fab-edge) ::slotted(ion-fab-list.fab-list-side-start),
:host(.fab-vertical-bottom.fab-edge) ::slotted(ion-fab-list.fab-list-side-end) {
  @include margin(null, null, -50%, null);
}

:host(.fab-vertical-bottom.fab-edge) ::slotted(ion-fab-list.fab-list-side-top),
:host(.fab-vertical-bottom.fab-edge) ::slotted(ion-fab-list.fab-list-side-bottom) {
  @include margin(null, null, calc(50% + #{$fab-list-margin}) null);
}

:host(.fab-vertical-center) {
  @include position(0px, null, 0px, null);
  @include margin(auto, null);
}