css hack n' slash, continued: New styles for checkboxes and radios.

chrome/browser/resources/shared/css/widgets.css

 /* Copyright (c) 2012 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
+/* This file defines styles for form controls. The order of rule blocks is
+ * important as there are some rules with equal specificity that rely on order
+ * as a tiebreaker. These are marked with OVERRIDE.

[Dan Beam, 2012/03/06 04:47:07]

and the community thinks we write CSS like C++, hah!

+ */
+
 /* Default state **************************************************************/
 
 button:not(.custom-appearance):not(.link-button),
 input[type='button']:not(.custom-appearance):not(.link-button),
 input[type='submit']:not(.custom-appearance):not(.link-button),
-select {
+select,
+input[type='checkbox'],
+input[type='radio'] {

[Dan Beam, 2012/03/06 04:47:07]

why not group inputs?

[Evan Stade, 2012/03/06 05:18:15]

why group inputs? input[type='button'] has a lot more in common with select than
input[type='radio']

[Dan Beam, 2012/03/06 05:50:10]

ok, I see your point

+  -webkit-appearance: none;
   -webkit-user-select: none;
+  background-image: -webkit-linear-gradient(#ededed, #ededed 38%, #dedede);
   border-radius: 2px;
   border: 1px solid rgba(0, 0, 0, 0.25);
   box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08),
       inset 0 1px 2px rgba(255, 255, 255, 0.75);
   color: #444;
   font: inherit;
+  margin: 0 1px 0 0;
+  text-shadow: 0 1px 0 rgb(240, 240, 240);
+}
+
+button:not(.custom-appearance):not(.link-button),
+input[type='button']:not(.custom-appearance):not(.link-button),
+input[type='submit']:not(.custom-appearance):not(.link-button),
+select {
   height: 2em;
-  margin: 0 1px 0 0;
   min-width: 4em;
-  text-shadow: 0 1px 0 rgb(240, 240, 240);
 }
 
 button:not(.custom-appearance):not(.link-button),
 input[type='button']:not(.custom-appearance):not(.link-button),
 input[type='submit']:not(.custom-appearance):not(.link-button) {
   -webkit-padding-end: 10px;
   -webkit-padding-start: 10px;
-  background-image:
-      -webkit-gradient(linear, left top, left bottom,
-                       color-stop(0, rgb(237, 237, 237)),
-                       color-stop(0.38, rgb(237, 237, 237)),
-                       color-stop(1, rgb(222, 222, 222)));
 }
 
 select {
   -webkit-appearance: none;
   -webkit-padding-end: 20px;
   -webkit-padding-start: 6px;
+  /* OVERRIDE */
   background-image: url('../images/select.png'),
-      -webkit-gradient(linear, left top, left bottom,
-                       color-stop(0, rgb(237, 237, 237)),
-                       color-stop(0.38, rgb(237, 237, 237)),
-                       color-stop(1, rgb(222, 222, 222)));
+      -webkit-linear-gradient(#ededed, #ededed 38%, #dedede);
   background-position: right center;
   background-repeat: no-repeat;
   overflow: hidden;
   text-align: left;
   text-overflow: ellipsis;
   white-space: nowrap;
 }
 
 html[dir='rtl'] select {
   background-position: center left;
 }
 
+input[type='checkbox'] {
+  border-radius: 2px;
+  height: 13px;
+  position: relative;
+  top: 2px;
+  width: 13px;
+}
+
+input[type='radio'] {
+  border-radius: 100%;
+  height: 15px;
+  position: relative;
+  width: 15px;
+}
+
+/* Checked ********************************************************************/
+
+input[type='checkbox']:checked::before {
+  -webkit-user-select: none;
+  content: url('../images/check.png');
+}
+
+input[type='radio']:checked::before {
+  background-color: #666;
+  border-radius: 100%;
+  content: '';
+  display: inline-block;
+  height: 7px;
+  left: 3px;
+  position: absolute;
+  top: 3px;
+  width: 7px;
+}
+
+html[dir='rtl'] input[type='radio']:checked::before {
+  right: 0;
+}
+
 /* Hover **********************************************************************/
 
 button:not(.custom-appearance):not(.link-button):enabled:hover,
 input[type='button']:not(.custom-appearance):not(.link-button):enabled:hover,
-input[type='submit']:not(.custom-appearance):not(.link-button):enabled:hover {
-  background-image: -webkit-gradient(linear, left top, left bottom,
-                                     color-stop(0, rgb(240, 240, 240)),
-                                     color-stop(0.38, rgb(240, 240, 240)),
-                                     color-stop(1, rgb(224, 224, 224)));
-}
-
-select:enabled:hover {
-  background-image: url('../images/select.png'),
-      -webkit-gradient(linear, left top, left bottom,
-                       color-stop(0, rgb(237, 237, 237)),
-                       color-stop(0.38, rgb(237, 237, 237)),
-                       color-stop(1, rgb(222, 222, 222)));
-}
-
-button:not(.custom-appearance):not(.link-button):enabled:hover,
-input[type='button']:not(.custom-appearance):not(.link-button):enabled:hover,
 input[type='submit']:not(.custom-appearance):not(.link-button):enabled:hover,
-select:enabled:hover {
+select:enabled:hover,
+input[type='checkbox']:enabled:hover,
+input[type='radio']:enabled:hover {
+  background-image: -webkit-linear-gradient(#f0f0f0, #f0f0f0 38%, #e0e0e0);
   border-color: rgba(0, 0, 0, 0.3);
   box-shadow: 0 1px 0 rgba(0, 0, 0, 0.12),
       inset 0 1px 2px rgba(255, 255, 255, 0.95);
   color: black;
 }
 
+select:enabled:hover {
+  /* OVERRIDE */
+  background-image: url('../images/select.png'),
+      -webkit-linear-gradient(#f0f0f0, #f0f0f0 38%, #e0e0e0);
+}
+
 /* Active *********************************************************************/
 
 button:not(.custom-appearance):not(.link-button):enabled:active,
 input[type='button']:not(.custom-appearance):not(.link-button):enabled:active,
-input[type='submit']:not(.custom-appearance):not(.link-button):enabled:active {
-  background-image: -webkit-gradient(linear, left top, left bottom,
-                                     color-stop(0, rgb(231, 231, 231)),
-                                     color-stop(0.38, rgb(231, 231, 231)),
-                                     color-stop(1, rgb(215, 215, 215)));
+input[type='submit']:not(.custom-appearance):not(.link-button):enabled:active,
+select:enabled:active,
+input[type='checkbox']:enabled:active,
+input[type='radio']:enabled:active {
+  background-image: -webkit-linear-gradient(#e7e7e7, #e7e7e7 38%, #d7d7d7);
+  box-shadow: none;
+  text-shadow: none;
 }
 
 select:enabled:active {
+  /* OVERRIDE */
   background-image: url('../images/select.png'),
-      -webkit-gradient(linear, left top, left bottom,
-                       color-stop(0, rgb(231, 231, 231)),
-                       color-stop(0.38, rgb(231, 231, 231)),
-                       color-stop(1, rgb(215, 215, 215)));
-}
-
-button:not(.custom-appearance):not(.link-button):enabled:active,
-input[type='button']:not(.custom-appearance):not(.link-button):enabled:active,
-input[type='submit']:not(.custom-appearance):not(.link-button):enabled:active,
-select:enabled:active {
-  box-shadow: none;
-  text-shadow: none;
+      -webkit-linear-gradient(#e7e7e7, #e7e7e7 38%, #d7d7d7);
 }
 
 /* Disabled *******************************************************************/
 
 button:not(.custom-appearance):not(.link-button):disabled,
 input[type='button']:not(.custom-appearance):not(.link-button):disabled,
 input[type='submit']:not(.custom-appearance):not(.link-button):disabled,
 select:disabled {
   border-color: rgba(0, 0, 0, 0.2);
   color: #999;
 }
 
 select:disabled {
   background-image: url('../images/disabled_select.png'),
-      -webkit-gradient(linear, left top, left bottom,
-                       color-stop(0, rgb(237, 237, 237)),
-                       color-stop(0.38, rgb(237, 237, 237)),
-                       color-stop(1, rgb(222, 222, 222)));
+      -webkit-linear-gradient(#ededed, #ededed 38%, #dedede);
+}
+
+input[type='checkbox']:disabled,
+input[type='radio']:disabled {
+  opacity: .75;
 }
 
 /* Focus **********************************************************************/
 
 button:not(.custom-appearance):not(.link-button):focus,
 input[type='submit']:not(.custom-appearance):focus,
-input[type='text']:not(.custom-appearance):focus,
+input[type='text']:focus,
+input[type='checkbox']:focus,
+input[type='radio']:focus,
 select:focus {
   -webkit-transition: border-color 200ms;
   /* We use border color because it follows the border radius (unlike outline).
    * This is particularly noticeable on mac. */
   border-color: rgb(77, 144, 254);
   outline: none;
 }
 
 /* Search boxes use an outline because it follows the contours of the box. */
 input[type='search']:not(.custom-appearance):focus {
@@ skipping 22 matching lines @@
 .link-button:active {
   color: rgb(5, 37, 119);
   text-decoration: underline;
 }
 
 .link-button[disabled] {
   color: #888;
   cursor: default;
   text-decoration: none;
 }
+
+/* Checkbox/radio helpers ******************************************************
+ *
+ * .checkbox and .radio classes wrap labels. Checkboxes and radios should use
+ * these classes in the form:

[Dan Beam, 2012/03/06 04:47:07]

s/form/markup structure/?

[Evan Stade, 2012/03/06 05:18:15]

why?

[Dan Beam, 2012/03/06 05:50:10]

seems less ambiguous - in the form could mean anything, I don't care that much
about it

[Evan Stade, 2012/03/06 22:54:51]

Done.

+ *
+ *   <div class="checkbox">
+ *     <label>
+ *       <input type="checkbox"></input>
+ *       <span>

[Dan Beam, 2012/03/06 04:47:07]

do you want to end this span?

[Evan Stade, 2012/03/06 05:18:15]

ok

+ *     </label>
+ *   </div>
+ */
+
+.checkbox,
+.radio {
+  margin: 0.45em 0;
+}
+
+.checkbox label,
+.radio label {
+  color: #444;
+  /* Don't expand horizontally: http://crbug.com/112091 */

[Dan Beam, 2012/03/06 04:47:07]

. at end

[Evan Stade, 2012/03/06 22:54:51]

Done.

+  display: -webkit-inline-box;
+}
+
+.checkbox label input ~ span,
+.radio label input ~ span {
+  -webkit-margin-start: 0.4em;
+  /* Make sure long spans wrap at the same horizontal position they start. */
+  display: block;
+}
+
+.checkbox label:hover,
+.radio label:hover {
+  color: black;
+}
+
+label > input[type=checkbox]:disabled ~ span,
+label > input[type=radio]:disabled ~ span {
+  color: #999;
+}
+
+/* Text inputs ****************************************************************/
+/* TODO(estade): add more types here? */

[Dan Beam, 2012/03/06 04:47:07]

moar types?!

+input[type='password'],
+input[type='search'],
+input[type='text'],
+input[type='url'],
+input:not([type]) {
+  border: 1px solid #bfbfbf;
+  border-radius: 2px;

[Patrick Dubroy, 2012/03/06 22:58:28]

Maybe these rules be should shared with type='submit' and type='button'.

And can you add 'box-sizing: border-box;' here, so that all inputs are the same
height?

[Evan Stade, 2012/03/06 23:21:56]

most of them are not shareable, and the ones that are  shareable are pretty
simple so I don't mind repeating them (sharing would require repeating the
selectors, which are not very simple)
already done (see later patches)

+  font: inherit;
+  height: 2em;
+  margin: 0;
+  padding: 3px;
+}
+
+input[type='search'] {
+  /* NOTE: Keep a relatively high min-width for this so we don't obscure the end
+   * of the default text in relatively spacious languages (i.e. German). */
+  min-width: 160px;
+}
+
+input[type='text']:disabled {
+  color: #888;
+}