UIA: Fire UIA_AriaPropertiesPropertyId event, part 3/5

- Implemented firing property changed event for
  UIA_AriaPropertiesPropertyId and associated unit and
  browser dump tests for the following AriaProperties:
   - disabled
   - level
   - live
   - multiselectable

- Breakdown of UI Automation AriaProperties need to be
  implemented:
  atomic [part 1]
  busy [part 1]
  channel [part 2]
  checked [part 1]
  disabled [part 3, this cl]
  dropeffect [part 2]
  expanded [part 1]
  grabbed [part 2]
  haspopup [part 1]
  hidden [not implemented]
  invalid [part 1]
  level [part 3, this cl]
  live [part 3, this cl]
  multiline [part 1]
  multiselectable [part 3, this cl]
  posinset [part 4]
  pressed [part 4]
  readonly [part 4]
  relevant [part 4]
  required [part 1]
  secret [part 2]
  selected [part 1]
  setsize [part 5]
  sort [part 5]
  tabindex [part 2]
  valuemax [part 5]
  valuemin [part 5]
  valuenow [part 5]
  valuetext [part 5]

- Documentation on UI Automation AriaProperties
(see the second table's last column for AriaProperties
properties):
https://docs.microsoft.com/en-us/windows/desktop/WinAuto/uiauto-ariaspecification

- Link to part 1, UIA: Fire UIA_AriaPropertiesPropertyId event:
  CL:1574834

- Link to part 2, UIA: Fire UIA_AriaPropertiesPropertyId event:
  CL:1576280

- Link to part 3, UIA: Fire UIA_AriaPropertiesPropertyId event:
  CL:1589100

- Link to part 4, UIA: Fire UIA_AriaPropertiesPropertyId event:
  CL:1592640

- Link to part 5, UIA: Fire UIA_AriaPropertiesPropertyId event:
  CL:1591487

Bug: 928949

Change-Id: If2dff6ee3c40a6a4d5e7bec0b298e599b529f878
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1589100
Commit-Queue: Victor Fei <vicfei@microsoft.com>
Reviewed-by: Katie Dektar <katie@chromium.org>
Reviewed-by: Ian Prest <iapres@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#658735}

content/browser/accessibility/browser_accessibility_manager_win.cc

@@ -222,6 +222,7 @@ void BrowserAccessibilityManagerWin::FireGeneratedEvent(
     }
     case ui::AXEventGenerator::Event::ENABLED_CHANGED:
       FireUiaPropertyChangedEvent(UIA_IsEnabledPropertyId, node);
+      aria_properties_events_.insert(node);
       break;
     case ui::AXEventGenerator::Event::FLOW_FROM_CHANGED:
       FireUiaPropertyChangedEvent(UIA_FlowsFromPropertyId, node);
@@ -234,6 +235,7 @@ void BrowserAccessibilityManagerWin::FireGeneratedEvent(
       break;
     case ui::AXEventGenerator::Event::HIERARCHICAL_LEVEL_CHANGED:
       FireUiaPropertyChangedEvent(UIA_LevelPropertyId, node);
+      aria_properties_events_.insert(node);
       break;
     case ui::AXEventGenerator::Event::IMAGE_ANNOTATION_CHANGED:
       FireWinAccessibilityEvent(EVENT_OBJECT_NAMECHANGE, node);
@@ -271,6 +273,7 @@ void BrowserAccessibilityManagerWin::FireGeneratedEvent(
       break;
     case ui::AXEventGenerator::Event::LIVE_STATUS_CHANGED:
       FireUiaPropertyChangedEvent(UIA_LiveSettingPropertyId, node);
+      aria_properties_events_.insert(node);
       break;
     case ui::AXEventGenerator::Event::LOAD_COMPLETE:
       FireWinAccessibilityEvent(IA2_EVENT_DOCUMENT_LOAD_COMPLETE, node);
@@ -284,6 +287,7 @@ void BrowserAccessibilityManagerWin::FireGeneratedEvent(
     case ui::AXEventGenerator::Event::MULTISELECTABLE_STATE_CHANGED:
       FireUiaPropertyChangedEvent(UIA_SelectionCanSelectMultiplePropertyId,
                                   node);
+      aria_properties_events_.insert(node);
       break;
     case ui::AXEventGenerator::Event::NAME_CHANGED:
       FireUiaPropertyChangedEvent(UIA_NamePropertyId, node);

content/browser/accessibility/dump_accessibility_events_browsertest.cc

@@ -255,6 +255,11 @@ IN_PROC_BROWSER_TEST_P(DumpAccessibilityEventsTest,
   RunEventTest(FILE_PATH_LITERAL("aria-controls-changed.html"));
 }
 
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityEventsTest,
+                       AccessibilityEventsAriaDisabledChanged) {
+  RunEventTest(FILE_PATH_LITERAL("aria-disabled-changed.html"));
+}
+
 IN_PROC_BROWSER_TEST_P(DumpAccessibilityEventsTest,
                        AccessibilityEventsAriaHasPopupChanged) {
   RunEventTest(FILE_PATH_LITERAL("aria-haspopup-changed.html"));
@@ -265,6 +270,16 @@ IN_PROC_BROWSER_TEST_P(DumpAccessibilityEventsTest,
   RunEventTest(FILE_PATH_LITERAL("aria-invalid-changed.html"));
 }
 
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityEventsTest,
+                       AccessibilityEventsAriaLevelChanged) {
+  RunEventTest(FILE_PATH_LITERAL("aria-level-changed.html"));
+}
+
+IN_PROC_BROWSER_TEST_P(DumpAccessibilityEventsTest,
+                       AccessibilityEventsAriaLiveChanged) {
+  RunEventTest(FILE_PATH_LITERAL("aria-live-changed.html"));
+}
+
 IN_PROC_BROWSER_TEST_P(DumpAccessibilityEventsTest,
                        AccessibilityEventsAriaMultilineChanged) {
   RunEventTest(FILE_PATH_LITERAL("aria-multiline-changed.html"));

content/test/data/accessibility/event/aria-disabled-changed-expected-uia-win.txt

+AriaProperties changed on role=checkbox, name=checkbox1
+AriaProperties changed on role=checkbox, name=checkbox2
+AriaProperties changed on role=group, name=fieldset0
+AriaProperties changed on role=group, name=fieldset1
+AriaProperties changed on role=radio, name=radio0
+AriaProperties changed on role=radio, name=radio1
+IsEnabled changed on role=checkbox, name=checkbox1
+IsEnabled changed on role=checkbox, name=checkbox2
+IsEnabled changed on role=group, name=fieldset0
+IsEnabled changed on role=group, name=fieldset1
+IsEnabled changed on role=radio, name=radio0
+IsEnabled changed on role=radio, name=radio1
+ValueIsReadOnly changed on role=checkbox, name=checkbox1
+ValueIsReadOnly changed on role=checkbox, name=checkbox2
+ValueIsReadOnly changed on role=radio, name=radio0
+ValueIsReadOnly changed on role=radio, name=radio1

content/test/data/accessibility/event/aria-disabled-changed-expected-win.txt

-EVENT_OBJECT_STATECHANGE on role=ROLE_SYSTEM_CHECKBUTTON UNAVAILABLE IA2_STATE_CHECKABLE
-EVENT_OBJECT_STATECHANGE on role=ROLE_SYSTEM_RADIOBUTTON IA2_STATE_CHECKABLE
-EVENT_OBJECT_STATECHANGE on role=ROLE_SYSTEM_GROUPING
\ No newline at end of file
+EVENT_OBJECT_STATECHANGE on <div#checkbox1> role=ROLE_SYSTEM_CHECKBUTTON name="checkbox1" UNAVAILABLE IA2_STATE_CHECKABLE
+EVENT_OBJECT_STATECHANGE on <div#checkbox2> role=ROLE_SYSTEM_CHECKBUTTON name="checkbox2" IA2_STATE_CHECKABLE
+EVENT_OBJECT_STATECHANGE on <div#radio0> role=ROLE_SYSTEM_RADIOBUTTON name="radio0" IA2_STATE_CHECKABLE PosInSet=1 SetSize=1
+EVENT_OBJECT_STATECHANGE on <div#radio1> role=ROLE_SYSTEM_RADIOBUTTON name="radio1" IA2_STATE_CHECKABLE PosInSet=1 SetSize=1
+EVENT_OBJECT_STATECHANGE on <fieldset#fieldset0> role=ROLE_SYSTEM_GROUPING name="fieldset0"
+EVENT_OBJECT_STATECHANGE on <fieldset#fieldset1> role=ROLE_SYSTEM_GROUPING name="fieldset1"

content/test/data/accessibility/event/aria-disabled-changed.html

-<!DOCTYPE html>
 <!--
 @MAC-ALLOW:AXEnabled*
 @WIN-ALLOW:UNAVAILABLE
 -->
+<!DOCTYPE html>
 <form>
-  <div role="checkbox"></div>
-  <fieldset aria-disabled="true">
-    <div role="radio" aria-disabled="true"></div>
+  <div id="checkbox0" aria-label="checkbox0" role="checkbox"></div>
+  <div id="checkbox1" aria-label="checkbox1" role="checkbox"></div>
+  <div id="checkbox2" aria-label="checkbox2" role="checkbox" aria-disabled="true"></div>
+  <fieldset id="fieldset0" aria-label="fieldset0" aria-disabled="true">
+    <div id="radio0" aria-label="radio0" role="radio" aria-disabled="true"></div>
+  </fieldset>
+  <fieldset id="fieldset1" aria-label="fieldset1" aria-disabled="true">
+    <div id="radio1" aria-label="radio1" role="radio" aria-disabled="true"></div>
+  </fieldset>
+  <fieldset id="fieldset2" aria-label="fieldset2">
+    <div id="radio2" aria-label="radio2" role="radio"></div>
   </fieldset>
 </form>
 <script>
   function go() {
-    document.querySelector('div[role=checkbox]').setAttribute('aria-disabled', true);
-    document.querySelector('div[role=radio]').setAttribute('aria-disabled', false);
-    document.querySelector('fieldset').setAttribute('aria-disabled', false);
+    // Set aria-disabled on checkbox from default false->false; should not fire an event.
+    document.getElementById('checkbox0').setAttribute('aria-disabled', false);
+
+    // Set aria-disabled on checkbox from default false->true; should fire an event.
+    document.getElementById('checkbox1').setAttribute('aria-disabled', true);
+
+    // Set aria-disabled on checkbox from true->[removed]; should fire an event.
+    document.getElementById('checkbox2').removeAttribute('aria-disabled');
+
+    // Set aria-disabled on radio from true->false; should fire an event.
+    document.getElementById('radio0').setAttribute('aria-disabled', false);
+
+    // Set aria-disabled on fieldset from true->false; should fire an event.
+    document.getElementById('fieldset0').setAttribute('aria-disabled', false);
+
+    // Set aria-disabled on radio from true->[removed]; should fire an event.
+    document.getElementById('radio1').setAttribute('aria-disabled', false);
+
+    // Set aria-disabled on fieldset from true->[removed]; should fire an event.
+    document.getElementById('fieldset1').setAttribute('aria-disabled', false);
+
+    // Set aria-disabled on radio from default false->false; should not fire an event.
+    document.getElementById('radio2').setAttribute('aria-disabled', false);
+
+    // Set aria-disabled on fieldset from default false->false; should not fire an event.
+    document.getElementById('fieldset2').setAttribute('aria-disabled', false);
   }
 </script>

content/test/data/accessibility/event/aria-level-changed-expected-uia-win.txt

+AriaProperties changed on role=heading, name=Item2
+AriaProperties changed on role=heading, name=Item3
+AriaProperties changed on role=heading, name=Item4
+Level changed on role=heading, name=Item2
+Level changed on role=heading, name=Item3
+Level changed on role=heading, name=Item4

content/test/data/accessibility/event/aria-level-changed-expected-uia-win7.txt

+AriaProperties changed on role=heading, name=Item2
+AriaProperties changed on role=heading, name=Item3
+AriaProperties changed on role=heading, name=Item4

content/test/data/accessibility/event/aria-level-changed.html

+<!DOCTYPE html>
+<html>
+<body>
+  <div id="d1" role="heading">Item1</div>
+  <div id="d2" role="heading">Item2</div>
+  <div id="d3" role="heading" aria-level="3">Item3</div>
+  <div id="d4" role="heading" aria-level="3">Item4</div>
+  <script>
+    function go() {
+      // Set aria-level from default '2'->'2'; should not fire an event.
+      document.getElementById('d1').setAttribute('aria-level', '2');
+
+      // Set aria-level from default '2'->'3'; should fire an event.
+      document.getElementById('d2').setAttribute('aria-level', '3');
+
+      // Set aria-level from '3'->'2'; should fire an event.
+      document.getElementById('d3').setAttribute('aria-level', '2');
+
+      // Set aria-level from '3'->[removed]; should fire an event.
+      document.getElementById('d4').removeAttribute('aria-level');
+    }
+  </script>
+</body>
+</html>

content/test/data/accessibility/event/aria-live-changed-expected-uia-win.txt

+AriaProperties changed on role=heading, name=Item2
+AriaProperties changed on role=heading, name=Item3
+AriaProperties changed on role=heading, name=Item4
+LiveSetting changed on role=heading, name=Item2
+LiveSetting changed on role=heading, name=Item3
+LiveSetting changed on role=heading, name=Item4

content/test/data/accessibility/event/aria-live-changed-expected-uia-win7.txt

+AriaProperties changed on role=heading, name=Item2
+AriaProperties changed on role=heading, name=Item3
+AriaProperties changed on role=heading, name=Item4

content/test/data/accessibility/event/aria-live-changed.html

+<!--
+@UIA-WIN-DENY:*
+@UIA-WIN-ALLOW:AriaProperties*
+@UIA-WIN-ALLOW:LiveSetting*
+-->
+<!DOCTYPE html>
+<html>
+<body>
+  <h4 id="d1" aria-live="off">Item1</h4>
+  <h4 id="d2" aria-live="polite">Item2</h4>
+  <h4 id="d3" aria-live="polite">Item3</h4>
+  <h4 id="d4">Item4</h4>
+  <button onclick="go()">go</button>
+  <script>
+    function go() {
+      // set live from 'off' to 'off', so this shouldn't fire an event
+      document.getElementById('d1').setAttribute('aria-live', 'off');
+
+      // set live from 'polite'->'assertive'; should fire an event
+      document.getElementById('d2').setAttribute('aria-live', 'assertive');
+
+      // set live from 'polite'->[removed]; should fire event
+      document.getElementById('d3').removeAttribute('aria-live');
+
+      // set live to 'polite'; should fire an event
+      document.getElementById('d4').setAttribute('aria-live', 'polite');
+    }
+  </script>
+</body>
+</html>

content/test/data/accessibility/event/aria-multiselectable-changed-expected-uia-win.txt

+AriaProperties changed on role=grid
+AriaProperties changed on role=listbox
+AriaProperties changed on role=tablist
+AriaProperties changed on role=tree
+AriaProperties changed on role=treegrid
 SelectionCanSelectMultiple changed on role=grid
 SelectionCanSelectMultiple changed on role=listbox
 SelectionCanSelectMultiple changed on role=tablist

content/test/data/accessibility/event/live-region-add-live-attribute-expected-uia-win.txt

+AriaProperties changed on role=group
 LiveRegionChanged on role=group
 LiveSetting changed on role=group

content/test/data/accessibility/event/live-region-add-live-attribute-expected-uia-win7.txt

+AriaProperties changed on role=group
 LiveRegionChanged on role=group

content/test/data/accessibility/event/live-region-add-live-attribute.html

 <!--
 @UIA-WIN-DENY:*
+@UIA-WIN-ALLOW:AriaProperties*
 @UIA-WIN-ALLOW:LiveRegion*
 @UIA-WIN-ALLOW:LiveSetting*
 -->

content/test/data/accessibility/event/range-value-is-readonly-changed-expected-uia-win.txt

+AriaProperties changed on role=slider
 IsEnabled changed on role=slider
 RangeValueIsReadOnly changed on role=slider
 === Start Continuation ===
+AriaProperties changed on role=slider
 IsEnabled changed on role=slider
 RangeValueIsReadOnly changed on role=slider
 === Start Continuation ===
@@ -8,8 +10,10 @@ RangeValueIsReadOnly changed on role=slider
 === Start Continuation ===
 RangeValueIsReadOnly changed on role=slider
 === Start Continuation ===
+AriaProperties changed on role=slider
 IsEnabled changed on role=slider
 RangeValueIsReadOnly changed on role=slider
 === Start Continuation ===
+AriaProperties changed on role=slider
 IsEnabled changed on role=slider
 RangeValueIsReadOnly changed on role=slider

content/test/data/accessibility/event/value-is-readonly-changed-expected-uia-win.txt

+AriaProperties changed on role=textbox
 IsEnabled changed on role=textbox
 ValueIsReadOnly changed on role=textbox
 === Start Continuation ===
+AriaProperties changed on role=textbox
 IsEnabled changed on role=textbox
 ValueIsReadOnly changed on role=textbox
 === Start Continuation ===
@@ -12,8 +14,10 @@ ValueIsReadOnly changed on role=textbox
 === Start Continuation ===
 ValueIsReadOnly changed on role=textbox
 === Start Continuation ===
+AriaProperties changed on role=textbox
 IsEnabled changed on role=textbox
 ValueIsReadOnly changed on role=textbox
 === Start Continuation ===
+AriaProperties changed on role=textbox
 IsEnabled changed on role=textbox
 ValueIsReadOnly changed on role=textbox