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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #import <Cocoa/Cocoa.h> | |
| 6 | |
| 7 #include "base/memory/scoped_nsobject.h" | |
| 8 #include "base/test/test_timeouts.h" | |
| 9 #include "chrome/common/chrome_switches.h" | |
| 10 #include "chrome/test/ui/ui_test.h" | |
| 11 | |
| 12 // The following tests exercise the Chrome Mac accessibility implementation | |
| 13 // similarly to the way in which VoiceOver would. | |
| 14 // We achieve this by utilizing the same carbon API (HIServices) as do | |
| 15 // other assistive technologies. | |
| 16 // Note that the tests must be UITests since these API's only work if not | |
| 17 // called within the same process begin examined. | |
| 18 class AccessibilityMacUITest : public UITest { | |
| 19 public: | |
| 20 AccessibilityMacUITest() { | |
| 21 // TODO(dtseng): fake the VoiceOver defaults value? | |
| 22 launch_arguments_.AppendSwitch(switches::kForceRendererAccessibility); | |
| 23 } | |
| 24 | |
| 25 virtual void SetUp() { | |
| 26 UITest::SetUp(); | |
| 27 SetupObservedNotifications(); | |
| 28 Initialize(); | |
| 29 } | |
| 30 | |
| 31 // Called to insert an event for validation. | |
| 32 // This is a order sensitive expectation. | |
| 33 void AddExpectedEvent(NSString* notificationName) { | |
| 34 [expectedEvents_ addObject:notificationName]; | |
| 35 } | |
| 36 | |
| 37 // Assert that there are no remaining expected events. | |
| 38 // CFRunLoop necessary to receive AX callbacks. | |
| 39 // Assumes that there is at least one expected event. | |
| 40 // The runloop stops only if we receive all expected notifications. | |
| 41 void WaitAndAssertAllEventsObserved() { | |
| 42 ASSERT_GE([expectedEvents_ count], 1U); | |
| 43 CFRunLoopRunInMode( | |
| 44 kCFRunLoopDefaultMode, | |
| 45 TestTimeouts::action_max_timeout_ms() / 1000, false); | |
| 46 ASSERT_EQ(0U, [expectedEvents_ count]); | |
| 47 } | |
| 48 | |
| 49 // The Callback handler added to each AXUIElement. | |
| 50 static void EventReceiver( | |
| 51 AXObserverRef observerRef, | |
| 52 AXUIElementRef element, | |
| 53 CFStringRef notificationName, | |
| 54 void *refcon) { | |
| 55 AccessibilityMacUITest* this_pointer = | |
| 56 reinterpret_cast<AccessibilityMacUITest*>(refcon); | |
| 57 if ([[this_pointer->expectedEvents_ objectAtIndex:0] | |
| 58 isEqualToString:(NSString*)notificationName]) { | |
| 59 [this_pointer->expectedEvents_ removeObjectAtIndex:0]; | |
| 60 } | |
| 61 | |
| 62 if ([this_pointer->expectedEvents_ count] == 0) { | |
| 63 CFRunLoopStop(CFRunLoopGetCurrent()); | |
| 64 } | |
| 65 | |
| 66 // TODO(dtseng): currently refreshing on all notifications; scope later. | |
| 67 this_pointer->SetAllObserversOnDescendants(element, observerRef); | |
| 68 } | |
| 69 | |
| 70 private: | |
| 71 // Perform AX setup. | |
| 72 void Initialize() { | |
| 73 expectedEvents_.reset([[NSMutableArray alloc] init]); | |
| 74 | |
| 75 // Construct the Chrome AXUIElementRef. | |
| 76 ASSERT_NE(-1, browser_process_id()); | |
| 77 AXUIElementRef browserUiElement = | |
| 78 AXUIElementCreateApplication(browser_process_id()); | |
| 79 ASSERT_TRUE(browserUiElement); | |
| 80 | |
| 81 // Setup our callbacks. | |
| 82 AXObserverRef observerRef; | |
| 83 ASSERT_EQ(kAXErrorSuccess, | |
| 84 AXObserverCreate(browser_process_id(), | |
| 85 AccessibilityMacUITest::EventReceiver, | |
| 86 &observerRef)); | |
| 87 SetAllObserversOnDescendants(browserUiElement, observerRef); | |
| 88 | |
| 89 // Add the observer to the current message loop. | |
| 90 CFRunLoopAddSource( | |
| 91 [[NSRunLoop currentRunLoop] getCFRunLoop], | |
| 92 AXObserverGetRunLoopSource(observerRef), | |
| 93 kCFRunLoopDefaultMode); | |
| 94 } | |
| 95 | |
| 96 // Taken largely from AXNotificationConstants.h | |
| 97 // (substituted NSAccessibility* to avoid casting). | |
| 98 void SetupObservedNotifications() { | |
| 99 observedNotifications_.reset( | |
| 100 [[NSArray alloc] initWithObjects: | |
| 101 | |
| 102 // focus notifications | |
| 103 NSAccessibilityMainWindowChangedNotification, | |
| 104 NSAccessibilityFocusedWindowChangedNotification, | |
| 105 NSAccessibilityFocusedUIElementChangedNotification, | |
| 106 | |
| 107 // application notifications | |
| 108 NSAccessibilityApplicationActivatedNotification, | |
| 109 NSAccessibilityApplicationDeactivatedNotification, | |
| 110 NSAccessibilityApplicationHiddenNotification, | |
| 111 NSAccessibilityApplicationShownNotification, | |
| 112 | |
| 113 // window notifications | |
| 114 NSAccessibilityWindowCreatedNotification, | |
| 115 NSAccessibilityWindowMovedNotification, | |
| 116 NSAccessibilityWindowResizedNotification, | |
| 117 NSAccessibilityWindowMiniaturizedNotification, | |
| 118 NSAccessibilityWindowDeminiaturizedNotification, | |
| 119 | |
| 120 // new drawer, sheet, and help tag notifications | |
| 121 NSAccessibilityDrawerCreatedNotification, | |
| 122 NSAccessibilitySheetCreatedNotification, | |
| 123 NSAccessibilityHelpTagCreatedNotification, | |
| 124 | |
| 125 // element notifications | |
| 126 NSAccessibilityValueChangedNotification, | |
| 127 NSAccessibilityUIElementDestroyedNotification, | |
| 128 | |
| 129 // menu notifications | |
| 130 (NSString*)kAXMenuOpenedNotification, | |
| 131 (NSString*)kAXMenuClosedNotification, | |
| 132 (NSString*)kAXMenuItemSelectedNotification, | |
| 133 | |
| 134 // table/outline notifications | |
| 135 NSAccessibilityRowCountChangedNotification, | |
| 136 | |
| 137 // other notifications | |
| 138 NSAccessibilitySelectedChildrenChangedNotification, | |
| 139 NSAccessibilityResizedNotification, | |
| 140 NSAccessibilityMovedNotification, | |
| 141 NSAccessibilityCreatedNotification, | |
| 142 NSAccessibilitySelectedRowsChangedNotification, | |
| 143 NSAccessibilitySelectedColumnsChangedNotification, | |
| 144 NSAccessibilitySelectedTextChangedNotification, | |
| 145 NSAccessibilityTitleChangedNotification, | |
| 146 | |
| 147 // Webkit specific notifications. | |
| 148 @"AXLoadComplete", | |
| 149 nil]); | |
| 150 } | |
| 151 | |
| 152 // Observe AX notifications on element and all descendants. | |
| 153 void SetAllObserversOnDescendants( | |
| 154 AXUIElementRef element, | |
| 155 AXObserverRef observerRef) { | |
| 156 SetAllObservers(element, observerRef); | |
| 157 CFTypeRef childrenRef; | |
| 158 if ((AXUIElementCopyAttributeValue( | |
| 159 element, kAXChildrenAttribute, &childrenRef)) == kAXErrorSuccess) { | |
| 160 NSArray* children = (NSArray*)childrenRef; | |
| 161 for (uint32 i = 0; i < [children count]; ++i) { | |
| 162 SetAllObserversOnDescendants( | |
| 163 (AXUIElementRef)[children objectAtIndex:i], observerRef); | |
| 164 } | |
| 165 } | |
| 166 } | |
| 167 | |
| 168 // Add observers for all notifications we know about. | |
| 169 void SetAllObservers( | |
| 170 AXUIElementRef element, | |
| 171 AXObserverRef observerRef) { | |
| 172 for (NSString* notification in observedNotifications_.get()) { | |
| 173 AXObserverAddNotification( | |
| 174 observerRef, element, (CFStringRef)notification, this); | |
| 175 } | |
| 176 } | |
| 177 | |
| 178 // Used to keep track of events received during the lifetime of the tests. | |
| 179 scoped_nsobject<NSMutableArray> expectedEvents_; | |
| 180 // NSString collection of all AX notifications. | |
| 181 scoped_nsobject<NSArray> observedNotifications_; | |
| 182 }; | |
| 183 | |
| 184 // Timing out frequently. http://crbug.com/98388 | |
| 185 TEST_F(AccessibilityMacUITest, DISABLED_TestInitialPageNotifications) { | |
| 186 // Browse to a new page. | |
| 187 GURL tree_url( | |
| 188 "data:text/html,<html><head><title>Accessibility Mac Test</title></head>" | |
| 189 "<body><input type='button' value='push' /><input type='checkbox' />" | |
| 190 "</body></html>"); | |
| 191 NavigateToURLAsync(tree_url); | |
| 192 | |
| 193 // Test for navigation. | |
| 194 AddExpectedEvent(@"AXLoadComplete"); | |
| 195 | |
| 196 // Check all the expected Mac notifications. | |
| 197 WaitAndAssertAllEventsObserved(); | |
| 198 } | |
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Chromium Code Reviews
Issue 10382189:
Remove the last UITest in interactive_ui_tests which was disabled and is not necessary now since th… (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/