The Tor Browser: accessible/src/mac/mozDocAccessible.mm@141e0f1194b1

     1 /* -*- Mode: Objective-C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "RootAccessibleWrap.h"

     8 #import "mozDocAccessible.h"

    10 #import "mozView.h"

    12 // This must be included last:

    13 #include "nsObjCExceptions.h"

    15 using namespace mozilla::a11y;

    17 static id <mozAccessible, mozView>

    18 getNativeViewFromRootAccessible(Accessible* aAccessible)

    19 {

    20   RootAccessibleWrap* root =

    21     static_cast<RootAccessibleWrap*>(aAccessible->AsRoot());

    22   id <mozAccessible, mozView> nativeView = nil;

    23   root->GetNativeWidget ((void**)&nativeView);

    24   return nativeView;

    25 }

    27 #pragma mark -

    29 @implementation mozRootAccessible

    31 - (NSArray*)accessibilityAttributeNames

    32 {

    33   NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;

    35   // if we're expired, we don't support any attributes.

    36   if (!mGeckoAccessible)

    37     return [NSArray array];

    39   // standard attributes that are shared and supported by root accessible (AXMain) elements.

    40   static NSMutableArray* attributes = nil;

    42   if (!attributes) {

    43     attributes = [[super accessibilityAttributeNames] mutableCopy];

    44     [attributes addObject:NSAccessibilityMainAttribute];

    45     [attributes addObject:NSAccessibilityMinimizedAttribute];

    46   }

    48   return attributes;

    50   NS_OBJC_END_TRY_ABORT_BLOCK_NIL;

    51 }

    53 - (id)accessibilityAttributeValue:(NSString *)attribute

    54 {

    55   NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;

    57   if ([attribute isEqualToString:NSAccessibilityMainAttribute])

    58     return [NSNumber numberWithBool:[[self window] isMainWindow]];

    59   if ([attribute isEqualToString:NSAccessibilityMinimizedAttribute])

    60     return [NSNumber numberWithBool:[[self window] isMiniaturized]];

    62   return [super accessibilityAttributeValue:attribute];

    64   NS_OBJC_END_TRY_ABORT_BLOCK_NIL;

    65 }

    68 // return the AXParent that our parallell NSView tells us about.

    69 - (id)parent

    70 {

    71   NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;

    73   if (!mParallelView)

    74     mParallelView = (id<mozView, mozAccessible>)[self representedView];

    76   if (mParallelView)

    77     return [mParallelView accessibilityAttributeValue:NSAccessibilityParentAttribute];

    79   NSAssert(mParallelView, @"we're a root accessible w/o native view?");

    80   return [super parent];

    82   NS_OBJC_END_TRY_ABORT_BLOCK_NIL;

    83 }

    85 - (BOOL)hasRepresentedView

    86 {

    87   return YES;

    88 }

    90 // this will return our parallell NSView. see mozDocAccessible.h

    91 - (id)representedView

    92 {

    93   NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;

    95   if (mParallelView)

    96     return (id)mParallelView;

    98   mParallelView = getNativeViewFromRootAccessible (mGeckoAccessible);

   100   NSAssert(mParallelView, @"can't return root accessible's native parallel view.");

   101   return mParallelView;

   103   NS_OBJC_END_TRY_ABORT_BLOCK_NIL;

   104 }

   106 - (BOOL)isRoot

   107 {

   108   return YES;

   109 }

   111 @end

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