VolkerE has uploaded a new change for review. ( 
https://gerrit.wikimedia.org/r/372032 )

Change subject: [WIP] mediawiki.ui: Bring checkbox and radio on par with 
WikimediaUI design
......................................................................

[WIP] mediawiki.ui: Bring checkbox and radio on par with WikimediaUI design

Bringing checkbox and radio on par with WikimediaUI design templates,
also slightly enhancing accessibility by using colors of new palette.
Width & height is taken from current OOjs UI size, based on 16px default
browser font-size.
Adding several similar variables to variables.less.

Bug: T148265
Change-Id: I68848d48ea45c67124ac75be58748b4e9fb3085d
---
M resources/src/mediawiki.less/mediawiki.ui/variables.less
M resources/src/mediawiki.ui/components/checkbox.less
A resources/src/mediawiki.ui/components/images/checkbox-checked.png
A resources/src/mediawiki.ui/components/images/checkbox-checked.svg
D resources/src/mediawiki.ui/components/images/checked_disabled.png
D resources/src/mediawiki.ui/components/images/checked_disabled.svg
6 files changed, 91 insertions(+), 44 deletions(-)


  git pull ssh://gerrit.wikimedia.org:29418/mediawiki/core 
refs/changes/32/372032/1

diff --git a/resources/src/mediawiki.less/mediawiki.ui/variables.less 
b/resources/src/mediawiki.less/mediawiki.ui/variables.less
index ff74b6e..5844f52 100644
--- a/resources/src/mediawiki.less/mediawiki.ui/variables.less
+++ b/resources/src/mediawiki.less/mediawiki.ui/variables.less
@@ -17,8 +17,9 @@
 @colorGray13: #ddd;
 @colorGray14: #eaecf0;
 @colorGray15: #f8f9fa; // lightest
+@colorBaseInverted: #fff;
 
-// Semantic background colors
+// Semantic colors
 // Blue; for contextual use of a continuing action
 @colorProgressive: #36c;
 @colorProgressiveHighlight: #447ff5;
@@ -50,18 +51,30 @@
 @colorWarningText: #705000;
 
 // UI colors
+@backgroundColorInputBinaryChecked: @colorProgressive;
+@backgroundColorInputBinaryActive: @colorProgressiveActive;
 @colorFieldBorder: #a2a9b1;
 @colorShadow: @colorGray14;
 @colorPlaceholder: @colorGray10;
 @colorNeutral: @colorGray7;
 
+// Border colors
+@borderColorInputBinaryChecked: @colorProgressive;
+@borderColorInputBinaryActive: @colorProgressiveActive;
+
 // Global border radius to be used to buttons and inputs
 @borderRadius: 2px;
+
+// Box shadows
+@boxShadowWidget: inset 0 0 0 1px transparent;
+@boxShadowWidgetFocus: inset 0 0 0 1px @colorProgressive;
+@boxShadowProgressiveFocus: inset 0 0 0 1px @colorProgressive, inset 0 0 0 2px 
@colorBaseInverted;
+@boxShadowInputBinaryActive: inset 0 0 0 1px @colorProgressiveActive;
 
 // Icon related variables
 @iconSize: 1.5em;
 @iconGutterWidth: 1em;
 
-// Form input sizes
-@checkboxSize: 2em;
+// Form input sizes, equal to OOjs UI at 16px base font-size
+@checkboxSize: 1.5625em;
 @radioSize: 2em;
diff --git a/resources/src/mediawiki.ui/components/checkbox.less 
b/resources/src/mediawiki.ui/components/checkbox.less
index 6412da5..d3ae714 100644
--- a/resources/src/mediawiki.ui/components/checkbox.less
+++ b/resources/src/mediawiki.ui/components/checkbox.less
@@ -5,9 +5,9 @@
 //
 // Styling checkboxes in a way that works cross browser is a tricky problem to 
solve.
 // In MediaWiki UI put a checkbox and label inside a mw-ui-checkbox div.
-// This renders in all browsers except IE 6-8 which do not support the 
:checked selector;
+// This renders in all browsers except IE 6-8 which do not support the 
`:checked` selector;
 // these are kept backwards-compatible using the `:not( #noop )` selector.
-// You should give the checkbox and label matching "id" and "for" attributes, 
respectively.
+// You should give the checkbox and label matching `id` and `for` attributes, 
respectively.
 //
 // Markup:
 // <div class="mw-ui-checkbox">
@@ -30,52 +30,50 @@
 // Styleguide 3.
 .mw-ui-checkbox {
        display: inline-block;
+       line-height: @checkboxSize;
        vertical-align: middle;
 }
 
-// We use the not selector to cancel out styling on IE 8 and below
+// We use the `:not` selector to cancel out styling on IE 8 and below
 // We also disable this styling on JavaScript disabled devices. This fixes the 
issue with
 // Opera Mini where checking/unchecking doesn't apply styling but potentially 
leaves other
 // more capable browsers with unstyled checkboxes.
 .client-js .mw-ui-checkbox:not( #noop ) {
+       display: table;
        // Position relatively so we can make use of absolute pseudo elements
        position: relative;
-       display: table;
 
        * {
-               // reset font sizes (see T74727)
+               // Reset font sizes, see T74727
                font: inherit;
                vertical-align: middle;
        }
 
-       input[type='checkbox'] {
-               // we hide the input element as instead we will style the label 
that follows
-               // we use opacity so that VoiceOver software can still identify 
it
-               opacity: 0;
-               // Render *on top of* the label, so that it's still clickable 
(T98905)
-               z-index: 1;
+       [type='checkbox'] {
+               display: table-cell;
                position: relative;
-               // ensure the invisible checkbox takes up the required width
+               // Ensure the invisible input takes up the required `width` & 
`height`
                width: @checkboxSize;
                height: @checkboxSize;
-               // This is needed for Firefox mobile (See T73750 to workaround 
default Firefox stylesheet)
+               // Support: Firefox mobile to override user-agent stylesheet, 
see T73750
                max-width: none;
                margin: 0 0.4em 0 0;
-               cursor: pointer;
-               display: table-cell;
+               // Hide `input[type=checkbox]` and instead style the label that 
follows
+               // Support: VoiceOver. Use `opacity` so that VoiceOver can 
still identify the checkbox
+               opacity: 0;
+               // Render *on top of* the label, so that it's still clickable, 
see T98905
+               z-index: 1;
 
                & + label {
                        display: table-cell;
-                       cursor: pointer;
                }
 
-               // the pseudo before element of the label after the checkbox 
now looks like a checkbox
+               // Pseudo `:before` element of the label after the checkbox now 
looks like a checkbox
                & + label:before {
                        content: '';
                        background-color: #fff;
-                       .background-image-svg( 'images/checked.svg', 
'images/checked.png' );
-                       background-position: center center;
                        background-origin: border-box;
+                       background-position: center center;
                        background-repeat: no-repeat;
                        .background-size( 0, 0 );
                        .box-sizing( border-box );
@@ -88,39 +86,72 @@
                        margin-top: -1em;
                        border: 1px solid @colorGray7;
                        border-radius: @borderRadius;
-                       line-height: @checkboxSize;
-                       cursor: pointer;
                }
 
-               // when the input is checked, style the label pseudo before 
element that followed as a checked checkbox
+               // Apply a checkmark on the pseudo `:before` element when the 
input is checked
                &:checked + label:before {
-                       .background-size( 100%, 100% );
+                       .background-image-svg( 'images/checkbox-checked.svg', 
'images/checkbox-checked.png' );
+                       .background-size( 90%, 90% );
                }
 
-               &:active + label:before {
-                       background-color: @colorGray13;
-                       border-color: @colorGray13;
-               }
+               &:enabled {
+                       cursor: pointer;
 
-               &:focus + label:before {
-                       border-width: 2px;
-               }
+                       & + label {
+                               cursor: pointer;
+                       }
 
-               &:focus:hover + label:before,
-               &:hover + label:before {
-                       border-bottom-width: 3px;
+                       & + label:before {
+                               cursor: pointer;
+                               .transition( ~'background-color 100ms, color 
100ms, border-color 100ms, box-shadow 100ms' );
+                       }
+
+                       // `:focus` has to come first, otherwise a selector 
race with `:hover:focus` etc needs to be done
+                       &:focus + label:before {
+                               border-color: @colorProgressive;
+                               box-shadow: @boxShadowWidgetFocus;
+                       }
+
+                       &:hover + label:before {
+                               border-color: @colorProgressive;
+                       }
+
+                       &:active + label:before {
+                               background-color: @colorProgressiveActive;
+                               border-color: @borderColorInputBinaryActive;
+                               box-shadow: @boxShadowInputBinaryActive;
+                       }
+
+                       &:checked {
+                               & + label:before {
+                                       background-color: 
@backgroundColorInputBinaryChecked;
+                                       border-color: 
@borderColorInputBinaryChecked;
+                               }
+
+                               &:focus + label:before {
+                                       background-color: 
@backgroundColorInputBinaryChecked;
+                                       border-color: 
@borderColorInputBinaryChecked;
+                                       box-shadow: @boxShadowProgressiveFocus;
+                               }
+
+                               &:hover + label:before {
+                                       background-color: 
@colorProgressiveHighlight;
+                                       border-color: 
@colorProgressiveHighlight;
+                               }
+
+                               &:active + label:before {
+                                       background-color: 
@backgroundColorInputBinaryActive;
+                                       border-color: 
@borderColorInputBinaryActive;
+                                       box-shadow: @boxShadowInputBinaryActive;
+                               }
+                       }
                }
 
                // disabled checkboxes have a gray background
                &:disabled + label:before {
+                       background-color: @colorGray12;
+                       border-color: @colorGray12;
                        cursor: default;
-                       background-color: @colorGray14;
-                       border-color: @colorGray14;
-               }
-
-               // disabled and checked checkboxes have a white circle
-               &:disabled:checked + label:before {
-                       .background-image-svg( 'images/checked_disabled.svg', 
'images/checked_disabled.png' );
                }
        }
 }
diff --git a/resources/src/mediawiki.ui/components/images/checkbox-checked.png 
b/resources/src/mediawiki.ui/components/images/checkbox-checked.png
new file mode 100644
index 0000000..708bb39
--- /dev/null
+++ b/resources/src/mediawiki.ui/components/images/checkbox-checked.png
Binary files differ
diff --git a/resources/src/mediawiki.ui/components/images/checkbox-checked.svg 
b/resources/src/mediawiki.ui/components/images/checkbox-checked.svg
new file mode 100644
index 0000000..7f3299a
--- /dev/null
+++ b/resources/src/mediawiki.ui/components/images/checkbox-checked.svg
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg xmlns="http://www.w3.org/2000/svg"; width="24" height="24" viewBox="0 0 24 
24"><g fill="#fff">
+    <path d="M17 7.5L9.5 15 6 11.5 4.5 13l5 5L20 7.5c-.706-.706-2.294-.706-3 
0z" id="check"/>
+</g></svg>
diff --git a/resources/src/mediawiki.ui/components/images/checked_disabled.png 
b/resources/src/mediawiki.ui/components/images/checked_disabled.png
deleted file mode 100644
index 8217815..0000000
--- a/resources/src/mediawiki.ui/components/images/checked_disabled.png
+++ /dev/null
Binary files differ
diff --git a/resources/src/mediawiki.ui/components/images/checked_disabled.svg 
b/resources/src/mediawiki.ui/components/images/checked_disabled.svg
deleted file mode 100644
index ba4010e..0000000
--- a/resources/src/mediawiki.ui/components/images/checked_disabled.svg
+++ /dev/null
@@ -1 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?><svg xmlns="http://www.w3.org/2000/svg"; 
width="24" height="24"><path d="M4 12l5 5L20 5" stroke="#fff" stroke-width="3" 
fill="none"/></svg>

-- 
To view, visit https://gerrit.wikimedia.org/r/372032
To unsubscribe, visit https://gerrit.wikimedia.org/r/settings

Gerrit-MessageType: newchange
Gerrit-Change-Id: I68848d48ea45c67124ac75be58748b4e9fb3085d
Gerrit-PatchSet: 1
Gerrit-Project: mediawiki/core
Gerrit-Branch: master
Gerrit-Owner: VolkerE <[email protected]>

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