From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- accessible/mac/mozActionElements.mm | 340 ++++++++++++++++++++++++++++++++++++ 1 file changed, 340 insertions(+) create mode 100644 accessible/mac/mozActionElements.mm (limited to 'accessible/mac/mozActionElements.mm') diff --git a/accessible/mac/mozActionElements.mm b/accessible/mac/mozActionElements.mm new file mode 100644 index 000000000..5decd6ccc --- /dev/null +++ b/accessible/mac/mozActionElements.mm @@ -0,0 +1,340 @@ +/* -*- 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/. */ + +#import "mozActionElements.h" + +#import "MacUtils.h" +#include "Accessible-inl.h" +#include "DocAccessible.h" +#include "XULTabAccessible.h" + +#include "nsDeckFrame.h" +#include "nsObjCExceptions.h" + +using namespace mozilla::a11y; + +enum CheckboxValue { + // these constants correspond to the values in the OS + kUnchecked = 0, + kChecked = 1, + kMixed = 2 +}; + +@implementation mozButtonAccessible + +- (NSArray*)accessibilityAttributeNames +{ + NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL; + + static NSArray *attributes = nil; + if (!attributes) { + attributes = [[NSArray alloc] initWithObjects:NSAccessibilityParentAttribute, // required + NSAccessibilityRoleAttribute, // required + NSAccessibilityRoleDescriptionAttribute, + NSAccessibilityPositionAttribute, // required + NSAccessibilitySizeAttribute, // required + NSAccessibilityWindowAttribute, // required + NSAccessibilityPositionAttribute, // required + NSAccessibilityTopLevelUIElementAttribute, // required + NSAccessibilityHelpAttribute, + NSAccessibilityEnabledAttribute, // required + NSAccessibilityFocusedAttribute, // required + NSAccessibilityTitleAttribute, // required + NSAccessibilityChildrenAttribute, + NSAccessibilityDescriptionAttribute, +#if DEBUG + @"AXMozDescription", +#endif + nil]; + } + return attributes; + + NS_OBJC_END_TRY_ABORT_BLOCK_NIL; +} + +- (id)accessibilityAttributeValue:(NSString *)attribute +{ + NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL; + + if ([attribute isEqualToString:NSAccessibilityChildrenAttribute]) { + if ([self hasPopup]) + return [self children]; + return nil; + } + + if ([attribute isEqualToString:NSAccessibilityRoleDescriptionAttribute]) { + if ([self isTab]) + return utils::LocalizedString(NS_LITERAL_STRING("tab")); + + return NSAccessibilityRoleDescription([self role], nil); + } + + return [super accessibilityAttributeValue:attribute]; + + NS_OBJC_END_TRY_ABORT_BLOCK_NIL; +} + +- (BOOL)accessibilityIsIgnored +{ + return ![self getGeckoAccessible] && ![self getProxyAccessible]; +} + +- (NSArray*)accessibilityActionNames +{ + NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL; + + if ([self isEnabled]) { + if ([self hasPopup]) + return [NSArray arrayWithObjects:NSAccessibilityPressAction, + NSAccessibilityShowMenuAction, + nil]; + return [NSArray arrayWithObject:NSAccessibilityPressAction]; + } + return nil; + + NS_OBJC_END_TRY_ABORT_BLOCK_NIL; +} + +- (NSString*)accessibilityActionDescription:(NSString*)action +{ + NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL; + + if ([action isEqualToString:NSAccessibilityPressAction]) { + if ([self isTab]) + return utils::LocalizedString(NS_LITERAL_STRING("switch")); + + return @"press button"; // XXX: localize this later? + } + + if ([self hasPopup]) { + if ([action isEqualToString:NSAccessibilityShowMenuAction]) + return @"show menu"; + } + + return nil; + + NS_OBJC_END_TRY_ABORT_BLOCK_NIL; +} + +- (void)accessibilityPerformAction:(NSString*)action +{ + NS_OBJC_BEGIN_TRY_ABORT_BLOCK; + + if ([self isEnabled] && [action isEqualToString:NSAccessibilityPressAction]) { + // TODO: this should bring up the menu, but currently doesn't. + // once msaa and atk have merged better, they will implement + // the action needed to show the menu. + [self click]; + } + + NS_OBJC_END_TRY_ABORT_BLOCK; +} + +- (void)click +{ + // both buttons and checkboxes have only one action. we should really stop using arbitrary + // arrays with actions, and define constants for these actions. + if (AccessibleWrap* accWrap = [self getGeckoAccessible]) + accWrap->DoAction(0); + else if (ProxyAccessible* proxy = [self getProxyAccessible]) + proxy->DoAction(0); +} + +- (BOOL)isTab +{ + if (AccessibleWrap* accWrap = [self getGeckoAccessible]) + return accWrap->Role() == roles::PAGETAB; + + if (ProxyAccessible* proxy = [self getProxyAccessible]) + return proxy->Role() == roles::PAGETAB; + + return false; +} + +- (BOOL)hasPopup +{ + if (AccessibleWrap* accWrap = [self getGeckoAccessible]) + return accWrap->NativeState() & states::HASPOPUP; + + if (ProxyAccessible* proxy = [self getProxyAccessible]) + return proxy->NativeState() & states::HASPOPUP; + + return false; +} + +@end + +@implementation mozCheckboxAccessible + +- (NSString*)accessibilityActionDescription:(NSString*)action +{ + NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL; + + if ([action isEqualToString:NSAccessibilityPressAction]) { + if ([self isChecked] != kUnchecked) + return @"uncheck checkbox"; // XXX: localize this later? + + return @"check checkbox"; // XXX: localize this later? + } + + return nil; + + NS_OBJC_END_TRY_ABORT_BLOCK_NIL; +} + +- (int)isChecked +{ + uint64_t state = 0; + if (AccessibleWrap* accWrap = [self getGeckoAccessible]) + state = accWrap->NativeState(); + else if (ProxyAccessible* proxy = [self getProxyAccessible]) + state = proxy->NativeState(); + + // check if we're checked or in a mixed state + if (state & states::CHECKED) { + return (state & states::MIXED) ? kMixed : kChecked; + } + + return kUnchecked; +} + +- (id)value +{ + NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL; + + return [NSNumber numberWithInt:[self isChecked]]; + + NS_OBJC_END_TRY_ABORT_BLOCK_NIL; +} + +@end + +@implementation mozTabsAccessible + +- (void)dealloc +{ + [mTabs release]; + + [super dealloc]; +} + +- (NSArray*)accessibilityAttributeNames +{ + // standard attributes that are shared and supported by root accessible (AXMain) elements. + static NSMutableArray* attributes = nil; + + if (!attributes) { + attributes = [[super accessibilityAttributeNames] mutableCopy]; + [attributes addObject:NSAccessibilityContentsAttribute]; + [attributes addObject:NSAccessibilityTabsAttribute]; + } + + return attributes; +} + +- (id)accessibilityAttributeValue:(NSString *)attribute +{ + if ([attribute isEqualToString:NSAccessibilityContentsAttribute]) + return [super children]; + if ([attribute isEqualToString:NSAccessibilityTabsAttribute]) + return [self tabs]; + + return [super accessibilityAttributeValue:attribute]; +} + +/** + * Returns the selected tab (the mozAccessible) + */ +- (id)value +{ + mozAccessible* nativeAcc = nil; + if (AccessibleWrap* accWrap = [self getGeckoAccessible]) { + if (Accessible* accTab = accWrap->GetSelectedItem(0)) { + accTab->GetNativeInterface((void**)&nativeAcc); + } + } else if (ProxyAccessible* proxy = [self getProxyAccessible]) { + if (ProxyAccessible* proxyTab = proxy->GetSelectedItem(0)) { + nativeAcc = GetNativeFromProxy(proxyTab); + } + } + + return nativeAcc; +} + +/** + * Return the mozAccessibles that are the tabs. + */ +- (id)tabs +{ + if (mTabs) + return mTabs; + + NSArray* children = [self children]; + NSEnumerator* enumerator = [children objectEnumerator]; + mTabs = [[NSMutableArray alloc] init]; + + id obj; + while ((obj = [enumerator nextObject])) + if ([obj isTab]) + [mTabs addObject:obj]; + + return mTabs; +} + +- (void)invalidateChildren +{ + [super invalidateChildren]; + + [mTabs release]; + mTabs = nil; +} + +@end + +@implementation mozPaneAccessible + +- (NSUInteger)accessibilityArrayAttributeCount:(NSString*)attribute +{ + AccessibleWrap* accWrap = [self getGeckoAccessible]; + ProxyAccessible* proxy = [self getProxyAccessible]; + if (!accWrap && !proxy) + return 0; + + // By default this calls -[[mozAccessible children] count]. + // Since we don't cache mChildren. This is faster. + if ([attribute isEqualToString:NSAccessibilityChildrenAttribute]) { + if (accWrap) + return accWrap->ChildCount() ? 1 : 0; + + return proxy->ChildrenCount() ? 1 : 0; + } + + return [super accessibilityArrayAttributeCount:attribute]; +} + +- (NSArray*)children +{ + if (![self getGeckoAccessible]) + return nil; + + nsDeckFrame* deckFrame = do_QueryFrame([self getGeckoAccessible]->GetFrame()); + nsIFrame* selectedFrame = deckFrame ? deckFrame->GetSelectedBox() : nullptr; + + Accessible* selectedAcc = nullptr; + if (selectedFrame) { + nsINode* node = selectedFrame->GetContent(); + selectedAcc = [self getGeckoAccessible]->Document()->GetAccessible(node); + } + + if (selectedAcc) { + mozAccessible *curNative = GetNativeFromGeckoAccessible(selectedAcc); + if (curNative) + return [NSArray arrayWithObjects:GetObjectOrRepresentedView(curNative), nil]; + } + + return nil; +} + +@end -- cgit v1.2.3