Change icon button styles to make hover/focus states more obvious (#11474)

* Change icon buttons styles to make hover/focused states more obvious

* Fix CW button size inconsistency

* Fix icon button background color consistency

app/javascript/mastodon/features/compose/components/text_icon_button.js

@@ -1,6 +1,12 @@
 import React from 'react';
 import PropTypes from 'prop-types';
 
+const iconStyle = {
+  height: null,
+  lineHeight: '27px',
+  width: `${18 * 1.28571429}px`,
+};
+
 export default class TextIconButton extends React.PureComponent {
 
   static propTypes = {
@@ -20,7 +26,14 @@ export default class TextIconButton extends React.PureComponent {
     const { label, title, active, ariaControls } = this.props;
 
     return (
-      <button title={title} aria-label={title} className={`text-icon-button ${active ? 'active' : ''}`} aria-expanded={active} onClick={this.handleClick} aria-controls={ariaControls}>
+      <button
+        title={title}
+        aria-label={title}
+        className={`text-icon-button ${active ? 'active' : ''}`}
+        aria-expanded={active}
+        onClick={this.handleClick}
+        aria-controls={ariaControls} style={iconStyle}
+      >
         {label}
       </button>
     );

app/javascript/styles/mastodon/components.scss

@@ -129,19 +129,28 @@
   padding: 0;
   color: $action-button-color;
   border: 0;
+  border-radius: 4px;
   background: transparent;
   cursor: pointer;
-  transition: color 100ms ease-in;
+  transition: all 100ms ease-in;
+  transition-property: background-color, color;
 
   &:hover,
   &:active,
   &:focus {
     color: lighten($action-button-color, 7%);
-    transition: color 200ms ease-out;
+    background-color: rgba($action-button-color, 0.15);
+    transition: all 200ms ease-out;
+    transition-property: background-color, color;
+  }
+
+  &:focus {
+    background-color: rgba($action-button-color, 0.3);
   }
 
   &.disabled {
     color: darken($action-button-color, 13%);
+    background-color: transparent;
     cursor: default;
   }
 
@@ -166,10 +175,16 @@
     &:active,
     &:focus {
       color: darken($lighter-text-color, 7%);
+      background-color: rgba($lighter-text-color, 0.15);
+    }
+
+    &:focus {
+      background-color: rgba($lighter-text-color, 0.3);
     }
 
     &.disabled {
       color: lighten($lighter-text-color, 7%);
+      background-color: transparent;
     }
 
     &.active {
@@ -197,6 +212,7 @@
 .text-icon-button {
   color: $lighter-text-color;
   border: 0;
+  border-radius: 4px;
   background: transparent;
   cursor: pointer;
   font-weight: 600;
@@ -204,17 +220,25 @@
   padding: 0 3px;
   line-height: 27px;
   outline: 0;
-  transition: color 100ms ease-in;
+  transition: all 100ms ease-in;
+  transition-property: background-color, color;
 
   &:hover,
   &:active,
   &:focus {
     color: darken($lighter-text-color, 7%);
-    transition: color 200ms ease-out;
+    background-color: rgba($lighter-text-color, 0.15);
+    transition: all 200ms ease-out;
+    transition-property: background-color, color;
+  }
+
+  &:focus {
+    background-color: rgba($lighter-text-color, 0.3);
   }
 
   &.disabled {
     color: lighten($lighter-text-color, 20%);
+    background-color: transparent;
     cursor: default;
   }
 
@@ -604,7 +628,8 @@
       }
     }
 
-    .icon-button {
+    .icon-button,
+    .text-icon-button {
       box-sizing: content-box;
       padding: 0 3px;
     }