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Copyright (C) 2016 The Android Open Source Project

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
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<link rel="import" href="../../../bower_components/polymer/polymer.html">

<link rel="import" href="../../../behaviors/gr-tooltip-behavior/gr-tooltip-behavior.html">
<link rel="import" href="../../../behaviors/keyboard-shortcut-behavior/keyboard-shortcut-behavior.html">
<link rel="import" href="../../../bower_components/paper-button/paper-button.html">
<link rel="import" href="../../../styles/shared-styles.html">

<dom-module id="gr-button">
  <template strip-whitespace>
    <style include="shared-styles">
      /* general styles for all buttons */
      :host {
        display: inline-block;
        font-family: var(--font-family-bold);
        font-size: 12px;
        position: relative;
      }
      :host([hidden]) {
        display: none;
      }
      :host([no-uppercase]) paper-button {
        text-transform: none;
      }
      paper-button {
        /* Some of these are overridden for link style buttons since buttons
         without the link attribute are raised */
        background-color: var(--gr-button-background, #fff);
        color: var(--gr-button-color, var(--color-link));
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0;
        min-width: 0;
        padding: .4em .85em;
        @apply --gr-button;
      }
      paper-button:hover,
      paper-button:focus {
        color: var(--gr-button-hover-color, var(--color-button-hover));
      }
      :host([disabled]) paper-button {
        color: #a8a8a8;
        cursor: wait;
      }
      /* styles for the optional down arrow */
      :host:not([down-arrow]) .downArrow {display: none; }
      :host([down-arrow]) .downArrow {
        border-top: .36em solid var(--gr-button-arrow-color, #ccc);
        border-left: .36em solid transparent;
        border-right: .36em solid transparent;
        margin-bottom: .05em;
        margin-left: .5em;
        transition: border-top-color 200ms;
      }
      :host([down-arrow]) paper-button:hover .downArrow {
        border-top-color: var(--gr-button-arrow-hover-color, #666);
      }

      /* styles for raised buttons specifically*/
      :host([primary]) paper-button[raised],
      :host([secondary]) paper-button[raised] {
        background-color: var(--color-link);
        color: #fff;
      }
      :host([primary]) paper-button[raised]:hover,
      :host([primary]) paper-button[raised]:focus,
      :host([secondary]) paper-button[raised]:hover,
      :host([secondary]) paper-button[raised]:focus {
        background-color: var(--gr-button-hover-background-color, var(--color-button-hover));
        color: var(--gr-button-color, #fff);
      }
      :host([disabled]) paper-button[raised] {
        background-color: #eaeaea;
        color: #a8a8a8;
      }
      /* styles for link buttons specifically */
      :host([link]) {
        background-color: transparent;
        border: none;
        color: var(--color-link);
        font-size: inherit;
        font-family: var(--font-family-bold);
        text-transform: none;
      }
      :host([link][tertiary]) {
        color: var(--color-link-tertiary);
      }
      :host([link]) paper-button {
        background-color: transparent;
        margin: 0;
        padding: 0;
        --paper-button: {
          padding: 0;
        }
        @apply --gr-button;
      }
      :host([disabled][link]) paper-button {
        background-color: transparent;
      }
      :host([link]) paper-button:hover,
      :host([link]) paper-button:focus {
        color: var(--gr-button-hover-color, var(--color-button-hover));
      }
    </style>
    <paper-button
        raised="[[!link]]"
        disabled="[[_computeDisabled(disabled, loading)]]"
        tabindex="-1">
      <content></content>
      <i class="downArrow"></i>
    </paper-button>
  </template>
  <script src="gr-button.js"></script>
</dom-module>