@import "../../themes/ionic.globals";

// Checkbox
// --------------------------------------------------

:host {
  /**
   * @prop --size: Size of the checkbox icon
   *
   * @prop --checkbox-background: Background of the checkbox icon
   * @prop --checkbox-background-checked: Background of the checkbox icon when checked
   *
   * @prop --border-color: Border color of the checkbox icon
   * @prop --border-radius: Border radius of the checkbox icon
   * @prop --border-width: Border width of the checkbox icon
   * @prop --border-style: Border style of the checkbox icon
   * @prop --border-color-checked: Border color of the checkbox icon when checked
   *
   * @prop --transition: Transition of the checkbox icon
   *
   * @prop --checkmark-color: Color of the checkbox checkmark when checked
   * @prop --checkmark-width: Stroke width of the checkbox checkmark
   */
  --checkbox-background-checked: #{ion-color(primary, base)};
  --border-color-checked: #{ion-color(primary, base)};
  --checkmark-color: #{ion-color(primary, contrast)};
  --checkmark-width: 1;
  --transition: none;

  display: inline-block;

  position: relative;

  cursor: pointer;

  user-select: none;
  z-index: $z-index-item-input;
}

:host(.in-item) {
  width: 100%;
  height: 100%;
}

// TODO(FW-3100): remove this
:host(.legacy-checkbox) {
  width: var(--size);
  height: var(--size);
}

:host(.ion-color) {
  --checkbox-background-checked: #{current-color(base)};
  --border-color-checked: #{current-color(base)};
  --checkmark-color: #{current-color(contrast)};
}

// TODO(FW-3100): remove this
:host(.legacy-checkbox) label {
  @include input-cover();

  display: flex;

  align-items: center;

  opacity: 0;
}

.checkbox-wrapper {
  display: flex;

  flex-grow: 1;

  align-items: center;

  height: inherit;

  cursor: inherit;
}

.label-text-wrapper {
  /**
   * This ensures that double tapping this text
   * clicks the <label> and focuses the checkbox
   * when a screen reader is enabled.
   */
  pointer-events: none;

  text-overflow: ellipsis;

  white-space: nowrap;

  overflow: hidden;
}

/**
 * If no label text is placed into the slot
 * then the element should be hidden otherwise
 * there will be additional margins added.
 */
.label-text-wrapper-hidden {
  display: none;
}

input {
  @include visually-hidden();
}

.native-wrapper {
  display: flex;

  align-items: center;
}

.checkbox-icon {
  @include border-radius(var(--border-radius));

  position: relative;

  transition: var(--transition);

  border-width: var(--border-width);
  border-style: var(--border-style);
  border-color: var(--border-color);

  background: var(--checkbox-background);

  box-sizing: border-box;
}

// TODO(FW-3100): remove this
:host(.legacy-checkbox) .checkbox-icon {
  display: block;

  width: 100%;
  height: 100%;
}

// TODO(FW-3100): merge this with other .checkbox-icon styles above
:host(:not(.legacy-checkbox)) .checkbox-icon {
  width: var(--size);
  height: var(--size);
}

.checkbox-icon path {
  fill: none;
  stroke: var(--checkmark-color);
  stroke-width: var(--checkmark-width);

  opacity: 0;
}


// Justify Content
// ---------------------------------------------

:host(.checkbox-justify-space-between) .checkbox-wrapper {
  justify-content: space-between;
}

:host(.checkbox-justify-start) .checkbox-wrapper {
  justify-content: start;
}

:host(.checkbox-justify-end) .checkbox-wrapper {
  justify-content: end;
}


// Label Placement - Start
// ----------------------------------------------------------------

/**
 * Label is on the left of the checkbox in LTR and
 * on the right in RTL.
 */
:host(.checkbox-label-placement-start) .checkbox-wrapper {
  flex-direction: row;
}

:host(.checkbox-label-placement-start) .label-text-wrapper {
  /**
   * The margin between the label and
   * the checkbox should be on the end
   * when the label sits at the start.
   */
  @include margin(0, 8px, 0, 0);
}


// Label Placement - End
// ----------------------------------------------------------------

/**
 * Label is on the right of the checkbox in LTR and
 * on the left in RTL.
 */
:host(.checkbox-label-placement-end) .checkbox-wrapper {
  flex-direction: row-reverse;
}

/**
 * The margin between the label and
 * the checkbox should be on the start
 * when the label sits at the end.
 */
:host(.checkbox-label-placement-end) .label-text-wrapper {
  @include margin(0, 0, 0, 8px);
}


// Label Placement - Fixed
// ----------------------------------------------------------------

:host(.checkbox-label-placement-fixed) .label-text-wrapper {
  /**
   * The margin between the label and
   * the checkbox should be on the end
   * when the label sits at the start.
   */
  @include margin(0, 8px, 0, 0);
}

/**
 * Label is on the left of the checkbox in LTR and
 * on the right in RTL. Label also has a fixed width.
 */
:host(.checkbox-label-placement-fixed) .label-text-wrapper {
  flex: 0 0 100px;

  width: 100px;
  min-width: 100px;
  max-width: 200px;
}


// Checked / Indeterminate Checkbox
// ---------------------------------------------

:host(.checkbox-checked) .checkbox-icon,
:host(.checkbox-indeterminate) .checkbox-icon {
  border-color: var(--border-color-checked);

  background: var(--checkbox-background-checked);
}

:host(.checkbox-checked) .checkbox-icon path,
:host(.checkbox-indeterminate) .checkbox-icon path {
  opacity: 1;
}


// Disabled Checkbox
// ---------------------------------------------

:host(.checkbox-disabled) {
  pointer-events: none;
}