/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

:host {
  --info-icon-url: url("chrome://global/skin/icons/info-filled.svg");
  --warn-icon-url: url("chrome://global/skin/icons/warning.svg");
  --success-icon-url: url("chrome://global/skin/icons/check.svg");
  --error-icon-url: url("chrome://global/skin/icons/error.svg");
  --close-icon-url: url("chrome://global/skin/icons/close-12.svg");
  --close-fill-color: var(--in-content-icon-color);
  --icon-size: 16px;
  --close-icon-size: 28px;
}

:host {
  --message-bar-background-color: var(--in-content-box-info-background);
  --message-bar-text-color: var(--in-content-text-color);
  --message-bar-icon-url: var(--info-icon-url);
  /* The default values of --in-content-button* are sufficient, even for dark themes */
}

:host([type=warning]) {
  --message-bar-icon-url: var(--warn-icon-url);
}

:host([type=success]) {
  --message-bar-icon-url: var(--success-icon-url);
}

:host([type=error]),
:host([type=critical]) {
  --message-bar-icon-url: var(--error-icon-url);
}

:host {
  border: 1px solid transparent;
  border-radius: 4px;
}

/* Make the host to behave as a block by default, but allow hidden to hide it. */
:host(:not([hidden])) {
  display: block;
}

::slotted(button) {
  /* Enforce micro-button width. */
  min-width: -moz-fit-content !important;
}

/* MessageBar Grid Layout */

.container {
  background: var(--message-bar-background-color);
  color: var(--message-bar-text-color);

  padding: 3px 7px;
  position: relative;

  border-radius: 4px;

  display: flex;
  /* Ensure that the message bar shadow dom elements are vertically aligned. */
  align-items: center;
}

:host([align="center"]) .container {
  justify-content: center;
}

.content {
  margin: 0 4px;
  display: inline-block;
  /* Ensure that the message bar content is vertically aligned. */
  align-items: center;
  /* Ensure that the message bar content is wrapped. */
  word-break: break-word;
}

/* MessageBar icon style */

.icon {
  padding: 4px;
  width: var(--icon-size);
  height: var(--icon-size);
  flex-shrink: 0;
}

.icon::after {
  display: inline-block;
  appearance: none;
  -moz-context-properties: fill, stroke;
  fill: currentColor;
  stroke: currentColor;
  content: "";
  background-image: var(--message-bar-icon-url);
  background-size: var(--icon-size);
  width: var(--icon-size);
  height: var(--icon-size);
}

/* Use a spacer to position the close button at the end, but also support
 * centering if required. */
.spacer {
  flex-grow: 1;
}

/* Close icon styles */

:host(:not([dismissable])) .close {
  display: none;
}

.close {
  background-image: var(--close-icon-url);
  background-repeat: no-repeat;
  background-position: center center;
  -moz-context-properties: fill;
  fill: currentColor;
  min-width: auto;
  min-height: auto;
  width: var(--close-icon-size);
  height: var(--close-icon-size);
  padding: 0;
  flex-shrink: 0;
  margin: 4px 8px;
  background-size: 12px;
}

@media (prefers-contrast) {
  :host {
    border-color: CanvasText;
  }
}

@media not (prefers-contrast) {
  /* MessageBar colors by message type */
  /* Colors from: https://design.firefox.com/photon/components/message-bars.html#type-specific-style */

  :host([type=warning]) {
    /* Ensure colors within the bar are adjusted and controls are readable */
    color-scheme: light;

    --message-bar-background-color: var(--yellow-50);
    --message-bar-text-color: var(--yellow-90);

    --in-content-button-background: var(--yellow-60);
    --in-content-button-background-hover: var(--yellow-70);
    --in-content-button-background-active: var(--yellow-80);

    --close-fill-color: var(--message-bar-text-color);
  }

  :host([type=success]) {
    /* Ensure colors within the bar are adjusted and controls are readable */
    color-scheme: light;

    --message-bar-background-color: var(--green-50);
    --message-bar-text-color: var(--green-90);

    --in-content-button-background: var(--green-60);
    --in-content-button-background-hover: var(--green-70);
    --in-content-button-background-active: var(--green-80);
  }

  :host([type=error]) {
    --message-bar-background-color: var(--red-60);
    --message-bar-text-color: #ffffff;

    --in-content-button-background: var(--red-70);
    --in-content-button-background-hover: var(--red-80);
    --in-content-button-background-active: var(--red-90);
  }

  :host([type=info]) .icon {
    color: rgb(0,144,237);
  }

  :host([type=warning]) .icon {
    color: rgb(255,164,54);
  }

  :host([type=critical]) .icon {
    color: rgb(226,40,80);
  }

  .close {
    fill: var(--close-fill-color);
  }

  @media (prefers-color-scheme: dark) {
    /* Don't set the background in prefers-contrast mode or macOS can end up
     * with black on black text. */
    :host([type=info]) .icon {
      color: rgb(128,235,255);
    }

    :host([type=warning]) .icon {
      color: rgb(255,189,79);
    }

    :host([type=critical]) .icon {
      color: rgb(255,154,162);
    }
  }
}

strong {
  font-weight: 600;
}

.text-link:hover {
  cursor: pointer;
}

@keyframes spin {
  from { transform: rotate(0); }
  to { transform: rotate(360deg); }
}