MD-Settings A11y: Disable radio list if all options are disabled.

third_party/polymer/v1_0/chromium.patch

Index: third_party/polymer/v1_0/chromium.patch
diff --git a/third_party/polymer/v1_0/chromium.patch b/third_party/polymer/v1_0/chromium.patch
index 8b99b23f099dfaa63080fe6a058cbaf9e4286782..a210f0ccb2254538c63a466ae1bd437db792a42a 100644
--- a/third_party/polymer/v1_0/chromium.patch
+++ b/third_party/polymer/v1_0/chromium.patch
@@ -24,3 +24,115 @@ index 78a2a9ec621c..8b776dd790ea 100644
      },
  
      _ariaDescribedByChanged: function(ariaDescribedBy) {
+diff --git a/third_party/polymer/v1_0/components-chromium/iron-menu-behavior/iron-menu-behavior-extracted.js b/third_party/polymer/v1_0/components-chromium/iron-menu-behavior/iron-menu-behavior-extracted.js
+index bb0ed59e2e21..26605e1977ae 100644
+--- a/third_party/polymer/v1_0/components-chromium/iron-menu-behavior/iron-menu-behavior-extracted.js

[Dan Beam, 2017/03/17 23:58:53]

this is the wrong path.  please check that your patch works with this line from
inside the third_party/polymer/v1_0/ directory

https://cs.chromium.org/chromium/src/third_party/polymer/v1_0/reproduce.sh?q=...

[hcarmona, 2017/03/18 01:05:07]

Done.

++++ b/third_party/polymer/v1_0/components-chromium/iron-menu-behavior/iron-menu-behavior-extracted.js
+@@ -25,12 +25,18 @@
+        */
+       attrForItemTitle: {
+         type: String
++      },
++
++      disabled: {
++        type: Boolean,
++        value: false,
++        reflectToAttribute: true,
++        observer: '_disableTabindex',
+       }
+     },
+ 
+     hostAttributes: {
+       'role': 'menu',
+-      'tabindex': '0'
+     },
+ 
+     observers: [
+@@ -83,7 +89,11 @@
+       var selectedItem = this.multi ? (this.selectedItems && this.selectedItems[0]) : this.selectedItem;
+ 
+       this.items.forEach(function(item) {
+-        item.setAttribute('tabindex', item === selectedItem ? '0' : '-1');
++        // Don't enable tab index if an item is disabled, even if it's selected.
++        if (item === selectedItem && !selectedItem.hasAttribute('disabled') && !this.disabled)
++          item.setAttribute('tabindex', 0);
++        else
++          item.removeAttribute('tabindex');
+       }, this);
+     },
+ 
+@@ -194,8 +204,8 @@
+      * applicable.
+      */
+     _focusedItemChanged: function(focusedItem, old) {
+-      old && old.setAttribute('tabindex', '-1');
+-      if (focusedItem) {
++      old && old.removeAttribute('tabindex');
++      if (focusedItem && !focusedItem.hasAttribute('disabled') && !this.disabled) {
+         focusedItem.setAttribute('tabindex', '0');
+         focusedItem.focus();
+       }
+@@ -220,16 +230,16 @@
+      * @param {CustomEvent} event A key combination event.
+      */
+     _onShiftTabDown: function(event) {
+-      var oldTabIndex = this.getAttribute('tabindex');
++      var couldTab = this.getAttribute('tabindex') == 0;
+ 
+       Polymer.IronMenuBehaviorImpl._shiftTabPressed = true;
+ 
+       this._setFocusedItem(null);
+ 
+-      this.setAttribute('tabindex', '-1');
++      this._disableTabindex(true);
+ 
+       this.async(function() {
+-        this.setAttribute('tabindex', oldTabIndex);
++      this._disableTabindex(!couldTab);
+         Polymer.IronMenuBehaviorImpl._shiftTabPressed = false;
+         // NOTE(cdata): polymer/polymer#1305
+       }, 1);
+@@ -319,6 +329,17 @@
+     _activateHandler: function(event) {
+       Polymer.IronSelectableBehavior._activateHandler.call(this, event);
+       event.stopPropagation();
++    },
++
++    /**
++     * Updates this element's tab index when it's enabled/disabled.
++     * @param {boolean} disabled
++     */
++    _disableTabindex: function(disabled) {
++      if (disabled)
++        this.removeAttribute('tabindex');  // No tabindex means not tab-able or select-able.
++      else
++        this.setAttribute('tabindex', 0);  // tabindex of 0 means tab-able.
+     }
+   };
+ 
+@@ -329,4 +350,4 @@
+     Polymer.IronMultiSelectableBehavior,
+     Polymer.IronA11yKeysBehavior,
+     Polymer.IronMenuBehaviorImpl
+-  ];
+\ No newline at end of file
++  ];
+diff --git a/third_party/polymer/v1_0/components-chromium/paper-radio-group/paper-radio-group-extracted.js b/third_party/polymer/v1_0/components-chromium/paper-radio-group/paper-radio-group-extracted.js
+index 642f8ec5a698..3456c15f231f 100644
+--- a/third_party/polymer/v1_0/components-chromium/paper-radio-group/paper-radio-group-extracted.js
++++ b/third_party/polymer/v1_0/components-chromium/paper-radio-group/paper-radio-group-extracted.js
+@@ -7,7 +7,6 @@ Polymer({
+ 
+     hostAttributes: {
+       role: 'radiogroup',
+-      tabindex: 0
+     },
+ 
+     properties: {
+@@ -108,4 +107,4 @@ Polymer({
+       Polymer.IronMenubarBehaviorImpl._onRightKey.apply(this, arguments);
+       this._activateFocusedItem();
+     }
+-  });
+\ No newline at end of file
++  });