123 lines
3.2 KiB
Plaintext
123 lines
3.2 KiB
Plaintext
/* -*- Mode: Objective-C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#import <Cocoa/Cocoa.h>
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#include "Platform.h"
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#include "ProxyAccessible.h"
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#include "mozTableAccessible.h"
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#include "nsAppShell.h"
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namespace mozilla {
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namespace a11y {
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// Mac a11y whitelisting
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static bool sA11yShouldBeEnabled = false;
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bool
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ShouldA11yBeEnabled()
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{
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EPlatformDisabledState disabledState = PlatformDisabledState();
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return (disabledState == ePlatformIsForceEnabled) || ((disabledState == ePlatformIsEnabled) && sA11yShouldBeEnabled);
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}
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void
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PlatformInit()
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{
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}
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void
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PlatformShutdown()
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{
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}
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void
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ProxyCreated(ProxyAccessible* aProxy, uint32_t)
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{
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// Pass in dummy state for now as retrieving proxy state requires IPC.
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// Note that we can use ProxyAccessible::IsTable* functions here because they
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// do not use IPC calls but that might change after bug 1210477.
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Class type;
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if (aProxy->IsTable())
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type = [mozTableAccessible class];
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else if (aProxy->IsTableRow())
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type = [mozTableRowAccessible class];
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else if (aProxy->IsTableCell())
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type = [mozTableCellAccessible class];
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else
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type = GetTypeFromRole(aProxy->Role());
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uintptr_t accWrap = reinterpret_cast<uintptr_t>(aProxy) | IS_PROXY;
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mozAccessible* mozWrapper = [[type alloc] initWithAccessible:accWrap];
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aProxy->SetWrapper(reinterpret_cast<uintptr_t>(mozWrapper));
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}
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void
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ProxyDestroyed(ProxyAccessible* aProxy)
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{
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mozAccessible* wrapper = GetNativeFromProxy(aProxy);
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[wrapper expire];
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[wrapper release];
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aProxy->SetWrapper(0);
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}
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void
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ProxyEvent(ProxyAccessible* aProxy, uint32_t aEventType)
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{
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// ignore everything but focus-changed, value-changed, caret and selection
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// events for now.
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if (aEventType != nsIAccessibleEvent::EVENT_FOCUS &&
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aEventType != nsIAccessibleEvent::EVENT_VALUE_CHANGE &&
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aEventType != nsIAccessibleEvent::EVENT_TEXT_VALUE_CHANGE &&
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aEventType != nsIAccessibleEvent::EVENT_TEXT_CARET_MOVED &&
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aEventType != nsIAccessibleEvent::EVENT_TEXT_SELECTION_CHANGED)
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return;
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mozAccessible* wrapper = GetNativeFromProxy(aProxy);
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if (wrapper)
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FireNativeEvent(wrapper, aEventType);
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}
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void
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ProxyStateChangeEvent(ProxyAccessible* aProxy, uint64_t, bool)
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{
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// mac doesn't care about state change events
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}
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void
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ProxyCaretMoveEvent(ProxyAccessible* aTarget, int32_t aOffset)
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{
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mozAccessible* wrapper = GetNativeFromProxy(aTarget);
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if (wrapper)
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[wrapper selectedTextDidChange];
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}
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void
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ProxyTextChangeEvent(ProxyAccessible*, const nsString&, int32_t, uint32_t,
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bool, bool)
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{
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}
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} // namespace a11y
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} // namespace mozilla
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@interface GeckoNSApplication(a11y)
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-(void)accessibilitySetValue:(id)value forAttribute:(NSString*)attribute;
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@end
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@implementation GeckoNSApplication(a11y)
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-(void)accessibilitySetValue:(id)value forAttribute:(NSString*)attribute
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{
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if ([attribute isEqualToString:@"AXEnhancedUserInterface"])
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mozilla::a11y::sA11yShouldBeEnabled = ([value intValue] == 1);
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return [super accessibilitySetValue:value forAttribute:attribute];
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}
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@end
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