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Diffstat (limited to 'accessible/mac/mozTextAccessible.mm')
| -rw-r--r-- | accessible/mac/mozTextAccessible.mm | 627 |
1 files changed, 0 insertions, 627 deletions
diff --git a/accessible/mac/mozTextAccessible.mm b/accessible/mac/mozTextAccessible.mm deleted file mode 100644 index 1f433b802e..0000000000 --- a/accessible/mac/mozTextAccessible.mm +++ /dev/null @@ -1,627 +0,0 @@ -/* -*- Mode: Objective-C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ -/* This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -#include "Accessible-inl.h" -#include "HyperTextAccessible-inl.h" -#include "TextLeafAccessible.h" - -#include "nsCocoaUtils.h" -#include "nsObjCExceptions.h" - -#import "mozTextAccessible.h" - -using namespace mozilla; -using namespace mozilla::a11y; - -inline bool -ToNSRange(id aValue, NSRange* aRange) -{ - NS_PRECONDITION(aRange, "aRange is nil"); - - if ([aValue isKindOfClass:[NSValue class]] && - strcmp([(NSValue*)aValue objCType], @encode(NSRange)) == 0) { - *aRange = [aValue rangeValue]; - return true; - } - - return false; -} - -inline NSString* -ToNSString(id aValue) -{ - if ([aValue isKindOfClass:[NSString class]]) { - return aValue; - } - - return nil; -} - -@interface mozTextAccessible () -- (NSString*)subrole; -- (NSString*)selectedText; -- (NSValue*)selectedTextRange; -- (NSValue*)visibleCharacterRange; -- (long)textLength; -- (BOOL)isReadOnly; -- (NSNumber*)caretLineNumber; -- (void)setText:(NSString*)newText; -- (NSString*)text; -- (NSString*)stringFromRange:(NSRange*)range; -@end - -@implementation mozTextAccessible - -- (BOOL)accessibilityIsIgnored -{ - return ![self getGeckoAccessible] && ![self getProxyAccessible]; -} - -- (NSArray*)accessibilityAttributeNames -{ - NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL; - - static NSMutableArray* supportedAttributes = nil; - if (!supportedAttributes) { - // text-specific attributes to supplement the standard one - supportedAttributes = [[NSMutableArray alloc] initWithObjects: - NSAccessibilitySelectedTextAttribute, // required - NSAccessibilitySelectedTextRangeAttribute, // required - NSAccessibilityNumberOfCharactersAttribute, // required - NSAccessibilityVisibleCharacterRangeAttribute, // required - NSAccessibilityInsertionPointLineNumberAttribute, - @"AXRequired", - @"AXInvalid", - nil - ]; - [supportedAttributes addObjectsFromArray:[super accessibilityAttributeNames]]; - } - return supportedAttributes; - - NS_OBJC_END_TRY_ABORT_BLOCK_NIL; -} - -- (id)accessibilityAttributeValue:(NSString*)attribute -{ - NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL; - - if ([attribute isEqualToString:NSAccessibilityNumberOfCharactersAttribute]) - return [NSNumber numberWithInt:[self textLength]]; - - if ([attribute isEqualToString:NSAccessibilityInsertionPointLineNumberAttribute]) - return [self caretLineNumber]; - - if ([attribute isEqualToString:NSAccessibilitySelectedTextRangeAttribute]) - return [self selectedTextRange]; - - if ([attribute isEqualToString:NSAccessibilitySelectedTextAttribute]) - return [self selectedText]; - - if ([attribute isEqualToString:NSAccessibilityTitleAttribute]) - return @""; - - if ([attribute isEqualToString:NSAccessibilityValueAttribute]) { - // Apple's SpeechSynthesisServer expects AXValue to return an AXStaticText - // object's AXSelectedText attribute. See bug 674612 for details. - // Also if there is no selected text, we return the full text. - // See bug 369710 for details. - if ([[self role] isEqualToString:NSAccessibilityStaticTextRole]) { - NSString* selectedText = [self selectedText]; - return (selectedText && [selectedText length]) ? selectedText : [self text]; - } - - return [self text]; - } - - if (AccessibleWrap* accWrap = [self getGeckoAccessible]) { - if ([attribute isEqualToString:@"AXRequired"]) { - return [NSNumber numberWithBool:!!(accWrap->State() & states::REQUIRED)]; - } - - if ([attribute isEqualToString:@"AXInvalid"]) { - return [NSNumber numberWithBool:!!(accWrap->State() & states::INVALID)]; - } - } else if (ProxyAccessible* proxy = [self getProxyAccessible]) { - if ([attribute isEqualToString:@"AXRequired"]) { - return [NSNumber numberWithBool:!!(proxy->State() & states::REQUIRED)]; - } - - if ([attribute isEqualToString:@"AXInvalid"]) { - return [NSNumber numberWithBool:!!(proxy->State() & states::INVALID)]; - } - } - - if ([attribute isEqualToString:NSAccessibilityVisibleCharacterRangeAttribute]) - return [self visibleCharacterRange]; - - // let mozAccessible handle all other attributes - return [super accessibilityAttributeValue:attribute]; - - NS_OBJC_END_TRY_ABORT_BLOCK_NIL; -} - -- (NSArray*)accessibilityParameterizedAttributeNames -{ - static NSArray* supportedParametrizedAttributes = nil; - // text specific parametrized attributes - if (!supportedParametrizedAttributes) { - supportedParametrizedAttributes = [[NSArray alloc] initWithObjects: - NSAccessibilityStringForRangeParameterizedAttribute, - NSAccessibilityLineForIndexParameterizedAttribute, - NSAccessibilityRangeForLineParameterizedAttribute, - NSAccessibilityAttributedStringForRangeParameterizedAttribute, - NSAccessibilityBoundsForRangeParameterizedAttribute, -#if DEBUG - NSAccessibilityRangeForPositionParameterizedAttribute, - NSAccessibilityRangeForIndexParameterizedAttribute, - NSAccessibilityRTFForRangeParameterizedAttribute, - NSAccessibilityStyleRangeForIndexParameterizedAttribute, -#endif - nil - ]; - } - return supportedParametrizedAttributes; -} - -- (id)accessibilityAttributeValue:(NSString*)attribute forParameter:(id)parameter -{ - AccessibleWrap* accWrap = [self getGeckoAccessible]; - ProxyAccessible* proxy = [self getProxyAccessible]; - - HyperTextAccessible* textAcc = accWrap? accWrap->AsHyperText() : nullptr; - if (!textAcc && !proxy) - return nil; - - if ([attribute isEqualToString:NSAccessibilityStringForRangeParameterizedAttribute]) { - NSRange range; - if (!ToNSRange(parameter, &range)) { -#if DEBUG - NSLog(@"%@: range not set", attribute); -#endif - return @""; - } - - return [self stringFromRange:&range]; - } - - if ([attribute isEqualToString:NSAccessibilityRangeForLineParameterizedAttribute]) { - // XXX: actually get the integer value for the line # - return [NSValue valueWithRange:NSMakeRange(0, [self textLength])]; - } - - if ([attribute isEqualToString:NSAccessibilityAttributedStringForRangeParameterizedAttribute]) { - NSRange range; - if (!ToNSRange(parameter, &range)) { -#if DEBUG - NSLog(@"%@: range not set", attribute); -#endif - return @""; - } - - return [[[NSAttributedString alloc] initWithString:[self stringFromRange:&range]] autorelease]; - } - - if ([attribute isEqualToString:NSAccessibilityLineForIndexParameterizedAttribute]) { - // XXX: actually return the line # - return [NSNumber numberWithInt:0]; - } - - if ([attribute isEqualToString:NSAccessibilityBoundsForRangeParameterizedAttribute]) { - NSRange range; - if (!ToNSRange(parameter, &range)) { -#if DEBUG - NSLog(@"%@:no range", attribute); -#endif - return nil; - } - - int32_t start = range.location; - int32_t end = start + range.length; - DesktopIntRect bounds; - if (textAcc) { - bounds = - DesktopIntRect::FromUnknownRect(textAcc->TextBounds(start, end)); - } else if (proxy) { - bounds = - DesktopIntRect::FromUnknownRect(proxy->TextBounds(start, end)); - } - - return [NSValue valueWithRect:nsCocoaUtils::GeckoRectToCocoaRect(bounds)]; - } - -#if DEBUG - NSLog(@"unhandled attribute:%@ forParameter:%@", attribute, parameter); -#endif - - return nil; -} - -- (BOOL)accessibilityIsAttributeSettable:(NSString*)attribute -{ - NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN; - - if ([attribute isEqualToString:NSAccessibilityValueAttribute]) - return ![self isReadOnly]; - - if ([attribute isEqualToString:NSAccessibilitySelectedTextAttribute] || - [attribute isEqualToString:NSAccessibilitySelectedTextRangeAttribute] || - [attribute isEqualToString:NSAccessibilityVisibleCharacterRangeAttribute]) - return YES; - - return [super accessibilityIsAttributeSettable:attribute]; - - NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NO); -} - -- (void)accessibilitySetValue:(id)value forAttribute:(NSString *)attribute -{ - NS_OBJC_BEGIN_TRY_ABORT_BLOCK; - - AccessibleWrap* accWrap = [self getGeckoAccessible]; - ProxyAccessible* proxy = [self getProxyAccessible]; - - HyperTextAccessible* textAcc = accWrap? accWrap->AsHyperText() : nullptr; - if (!textAcc && !proxy) - return; - - if ([attribute isEqualToString:NSAccessibilityValueAttribute]) { - [self setText:ToNSString(value)]; - - return; - } - - if ([attribute isEqualToString:NSAccessibilitySelectedTextAttribute]) { - NSString* stringValue = ToNSString(value); - if (!stringValue) - return; - - int32_t start = 0, end = 0; - nsString text; - if (textAcc) { - textAcc->SelectionBoundsAt(0, &start, &end); - textAcc->DeleteText(start, end - start); - nsCocoaUtils::GetStringForNSString(stringValue, text); - textAcc->InsertText(text, start); - } else if (proxy) { - nsString data; - proxy->SelectionBoundsAt(0, data, &start, &end); - proxy->DeleteText(start, end - start); - nsCocoaUtils::GetStringForNSString(stringValue, text); - proxy->InsertText(text, start); - } - } - - if ([attribute isEqualToString:NSAccessibilitySelectedTextRangeAttribute]) { - NSRange range; - if (!ToNSRange(value, &range)) - return; - - if (textAcc) { - textAcc->SetSelectionBoundsAt(0, range.location, - range.location + range.length); - } else if (proxy) { - proxy->SetSelectionBoundsAt(0, range.location, - range.location + range.length); - } - return; - } - - if ([attribute isEqualToString:NSAccessibilityVisibleCharacterRangeAttribute]) { - NSRange range; - if (!ToNSRange(value, &range)) - return; - - if (textAcc) { - textAcc->ScrollSubstringTo(range.location, range.location + range.length, - nsIAccessibleScrollType::SCROLL_TYPE_TOP_EDGE); - } else if (proxy) { - proxy->ScrollSubstringTo(range.location, range.location + range.length, - nsIAccessibleScrollType::SCROLL_TYPE_TOP_EDGE); - } - return; - } - - [super accessibilitySetValue:value forAttribute:attribute]; - - NS_OBJC_END_TRY_ABORT_BLOCK; -} - -- (NSString*)subrole -{ - if(mRole == roles::PASSWORD_TEXT) - return NSAccessibilitySecureTextFieldSubrole; - - return nil; -} - -#pragma mark - - -- (BOOL)isReadOnly -{ - NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN; - - if ([[self role] isEqualToString:NSAccessibilityStaticTextRole]) - return YES; - - AccessibleWrap* accWrap = [self getGeckoAccessible]; - HyperTextAccessible* textAcc = accWrap? accWrap->AsHyperText() : nullptr; - if (textAcc) - return (accWrap->State() & states::READONLY) == 0; - - if (ProxyAccessible* proxy = [self getProxyAccessible]) - return (proxy->State() & states::READONLY) == 0; - - return NO; - - NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NO); -} - -- (NSNumber*)caretLineNumber -{ - AccessibleWrap* accWrap = [self getGeckoAccessible]; - HyperTextAccessible* textAcc = accWrap? accWrap->AsHyperText() : nullptr; - - int32_t lineNumber = -1; - if (textAcc) { - lineNumber = textAcc->CaretLineNumber() - 1; - } else if (ProxyAccessible* proxy = [self getProxyAccessible]) { - lineNumber = proxy->CaretLineNumber() - 1; - } - - return (lineNumber >= 0) ? [NSNumber numberWithInt:lineNumber] : nil; -} - -- (void)setText:(NSString*)aNewString -{ - NS_OBJC_BEGIN_TRY_ABORT_BLOCK; - - AccessibleWrap* accWrap = [self getGeckoAccessible]; - HyperTextAccessible* textAcc = accWrap? accWrap->AsHyperText() : nullptr; - - nsString text; - nsCocoaUtils::GetStringForNSString(aNewString, text); - if (textAcc) { - textAcc->ReplaceText(text); - } else if (ProxyAccessible* proxy = [self getProxyAccessible]) { - proxy->ReplaceText(text); - } - - NS_OBJC_END_TRY_ABORT_BLOCK; -} - -- (NSString*)text -{ - AccessibleWrap* accWrap = [self getGeckoAccessible]; - ProxyAccessible* proxy = [self getProxyAccessible]; - HyperTextAccessible* textAcc = accWrap? accWrap->AsHyperText() : nullptr; - if (!textAcc && !proxy) - return nil; - - // A password text field returns an empty value - if (mRole == roles::PASSWORD_TEXT) - return @""; - - nsAutoString text; - if (textAcc) { - textAcc->TextSubstring(0, nsIAccessibleText::TEXT_OFFSET_END_OF_TEXT, text); - } else if (proxy) { - proxy->TextSubstring(0, nsIAccessibleText::TEXT_OFFSET_END_OF_TEXT, text); - } - - return nsCocoaUtils::ToNSString(text); -} - -- (long)textLength -{ - NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN; - - AccessibleWrap* accWrap = [self getGeckoAccessible]; - ProxyAccessible* proxy = [self getProxyAccessible]; - HyperTextAccessible* textAcc = accWrap? accWrap->AsHyperText() : nullptr; - if (!textAcc && !proxy) - return 0; - - return textAcc ? textAcc->CharacterCount() : proxy->CharacterCount(); - - NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(0); -} - -- (long)selectedTextLength -{ - NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN; - - AccessibleWrap* accWrap = [self getGeckoAccessible]; - ProxyAccessible* proxy = [self getProxyAccessible]; - HyperTextAccessible* textAcc = accWrap? accWrap->AsHyperText() : nullptr; - if (!textAcc && !proxy) - return 0; - - int32_t start = 0, end = 0; - if (textAcc) { - textAcc->SelectionBoundsAt(0, &start, &end); - } else if (proxy) { - nsString data; - proxy->SelectionBoundsAt(0, data, &start, &end); - } - return (end - start); - - NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(0); -} - -- (NSString*)selectedText -{ - NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL; - - AccessibleWrap* accWrap = [self getGeckoAccessible]; - ProxyAccessible* proxy = [self getProxyAccessible]; - HyperTextAccessible* textAcc = accWrap? accWrap->AsHyperText() : nullptr; - if (!textAcc && !proxy) - return nil; - - int32_t start = 0, end = 0; - nsAutoString selText; - if (textAcc) { - textAcc->SelectionBoundsAt(0, &start, &end); - if (start != end) { - textAcc->TextSubstring(start, end, selText); - } - } else if (proxy) { - proxy->SelectionBoundsAt(0, selText, &start, &end); - } - - return nsCocoaUtils::ToNSString(selText); - - NS_OBJC_END_TRY_ABORT_BLOCK_NIL; -} - -- (NSValue*)selectedTextRange -{ - NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL; - - AccessibleWrap* accWrap = [self getGeckoAccessible]; - ProxyAccessible* proxy = [self getProxyAccessible]; - HyperTextAccessible* textAcc = accWrap? accWrap->AsHyperText() : nullptr; - - int32_t start = 0; - int32_t end = 0; - int32_t count = 0; - if (textAcc) { - count = textAcc->SelectionCount(); - if (count) { - textAcc->SelectionBoundsAt(0, &start, &end); - return [NSValue valueWithRange:NSMakeRange(start, end - start)]; - } - - start = textAcc->CaretOffset(); - return [NSValue valueWithRange:NSMakeRange(start != -1 ? start : 0, 0)]; - } - - if (proxy) { - count = proxy->SelectionCount(); - if (count) { - nsString data; - proxy->SelectionBoundsAt(0, data, &start, &end); - return [NSValue valueWithRange:NSMakeRange(start, end - start)]; - } - - start = proxy->CaretOffset(); - return [NSValue valueWithRange:NSMakeRange(start != -1 ? start : 0, 0)]; - } - - return [NSValue valueWithRange:NSMakeRange(0, 0)]; - - NS_OBJC_END_TRY_ABORT_BLOCK_NIL; -} - -- (NSValue*)visibleCharacterRange -{ - // XXX this won't work with Textarea and such as we actually don't give - // the visible character range. - AccessibleWrap* accWrap = [self getGeckoAccessible]; - ProxyAccessible* proxy = [self getProxyAccessible]; - HyperTextAccessible* textAcc = accWrap? accWrap->AsHyperText() : nullptr; - if (!textAcc && !proxy) - return 0; - - return [NSValue valueWithRange: - NSMakeRange(0, textAcc ? - textAcc->CharacterCount() : proxy->CharacterCount())]; -} - -- (void)valueDidChange -{ - NS_OBJC_BEGIN_TRY_ABORT_BLOCK; - - NSAccessibilityPostNotification(GetObjectOrRepresentedView(self), - NSAccessibilityValueChangedNotification); - - NS_OBJC_END_TRY_ABORT_BLOCK; -} - -- (void)selectedTextDidChange -{ - NSAccessibilityPostNotification(GetObjectOrRepresentedView(self), - NSAccessibilitySelectedTextChangedNotification); -} - -- (NSString*)stringFromRange:(NSRange*)range -{ - NS_PRECONDITION(range, "no range"); - - AccessibleWrap* accWrap = [self getGeckoAccessible]; - ProxyAccessible* proxy = [self getProxyAccessible]; - HyperTextAccessible* textAcc = accWrap? accWrap->AsHyperText() : nullptr; - if (!textAcc && !proxy) - return nil; - - nsAutoString text; - if (textAcc) { - textAcc->TextSubstring(range->location, - range->location + range->length, text); - } else if (proxy) { - proxy->TextSubstring(range->location, - range->location + range->length, text); - } - - return nsCocoaUtils::ToNSString(text); -} - -@end - -@implementation mozTextLeafAccessible - -- (NSArray*)accessibilityAttributeNames -{ - static NSMutableArray* supportedAttributes = nil; - if (!supportedAttributes) { - supportedAttributes = [[super accessibilityAttributeNames] mutableCopy]; - [supportedAttributes removeObject:NSAccessibilityChildrenAttribute]; - } - - return supportedAttributes; -} - -- (id)accessibilityAttributeValue:(NSString*)attribute -{ - if ([attribute isEqualToString:NSAccessibilityTitleAttribute]) - return @""; - - if ([attribute isEqualToString:NSAccessibilityValueAttribute]) - return [self text]; - - return [super accessibilityAttributeValue:attribute]; -} - -- (NSString*)text -{ - if (AccessibleWrap* accWrap = [self getGeckoAccessible]) { - return nsCocoaUtils::ToNSString(accWrap->AsTextLeaf()->Text()); - } - - if (ProxyAccessible* proxy = [self getProxyAccessible]) { - nsString text; - proxy->Text(&text); - return nsCocoaUtils::ToNSString(text); - } - - return nil; -} - -- (long)textLength -{ - if (AccessibleWrap* accWrap = [self getGeckoAccessible]) { - return accWrap->AsTextLeaf()->Text().Length(); - } - - if (ProxyAccessible* proxy = [self getProxyAccessible]) { - nsString text; - proxy->Text(&text); - return text.Length(); - } - - return 0; -} - -@end |