accessible/src/mac/mozAccessible.h@97036ab72558 (annotated)
accessible/src/mac/mozAccessible.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: Objective-C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "AccessibleWrap.h" |
| michael@0 | 7 | |
| michael@0 | 8 | #import <Cocoa/Cocoa.h> |
| michael@0 | 9 | |
| michael@0 | 10 | #import "mozAccessibleProtocol.h" |
| michael@0 | 11 | |
| michael@0 | 12 | @class mozRootAccessible; |
| michael@0 | 13 | |
| michael@0 | 14 | /** |
| michael@0 | 15 | * All mozAccessibles are either abstract objects (that correspond to XUL |
| michael@0 | 16 | * widgets, HTML frames, etc) or are attached to a certain view; for example |
| michael@0 | 17 | * a document view. When we hand an object off to an AT, we always want |
| michael@0 | 18 | * to give it the represented view, in the latter case. |
| michael@0 | 19 | */ |
| michael@0 | 20 | inline id <mozAccessible> |
| michael@0 | 21 | GetObjectOrRepresentedView(id <mozAccessible> aObject) |
| michael@0 | 22 | { |
| michael@0 | 23 | return [aObject hasRepresentedView] ? [aObject representedView] : aObject; |
| michael@0 | 24 | } |
| michael@0 | 25 | |
| michael@0 | 26 | inline mozAccessible* |
| michael@0 | 27 | GetNativeFromGeckoAccessible(nsIAccessible* aAccessible) |
| michael@0 | 28 | { |
| michael@0 | 29 | mozAccessible* native = nil; |
| michael@0 | 30 | aAccessible->GetNativeInterface((void**)&native); |
| michael@0 | 31 | return native; |
| michael@0 | 32 | } |
| michael@0 | 33 | |
| michael@0 | 34 | @interface mozAccessible : NSObject <mozAccessible> |
| michael@0 | 35 | { |
| michael@0 | 36 | /** |
| michael@0 | 37 | * Weak reference; it owns us. |
| michael@0 | 38 | */ |
| michael@0 | 39 | mozilla::a11y::AccessibleWrap* mGeckoAccessible; |
| michael@0 | 40 | |
| michael@0 | 41 | /** |
| michael@0 | 42 | * Strong ref to array of children |
| michael@0 | 43 | */ |
| michael@0 | 44 | NSMutableArray* mChildren; |
| michael@0 | 45 | |
| michael@0 | 46 | /** |
| michael@0 | 47 | * Weak reference to the parent |
| michael@0 | 48 | */ |
| michael@0 | 49 | mozAccessible* mParent; |
| michael@0 | 50 | |
| michael@0 | 51 | /** |
| michael@0 | 52 | * The nsIAccessible role of our gecko accessible. |
| michael@0 | 53 | */ |
| michael@0 | 54 | mozilla::a11y::role mRole; |
| michael@0 | 55 | } |
| michael@0 | 56 | |
| michael@0 | 57 | // inits with the gecko owner. |
| michael@0 | 58 | - (id)initWithAccessible:(mozilla::a11y::AccessibleWrap*)geckoParent; |
| michael@0 | 59 | |
| michael@0 | 60 | // our accessible parent (AXParent) |
| michael@0 | 61 | - (id <mozAccessible>)parent; |
| michael@0 | 62 | |
| michael@0 | 63 | // a lazy cache of our accessible children (AXChildren). updated |
| michael@0 | 64 | - (NSArray*)children; |
| michael@0 | 65 | |
| michael@0 | 66 | // returns the size of this accessible. |
| michael@0 | 67 | - (NSValue*)size; |
| michael@0 | 68 | |
| michael@0 | 69 | // returns the position, in cocoa coordinates. |
| michael@0 | 70 | - (NSValue*)position; |
| michael@0 | 71 | |
| michael@0 | 72 | // can be overridden to report another role name. |
| michael@0 | 73 | - (NSString*)role; |
| michael@0 | 74 | |
| michael@0 | 75 | // a subrole is a more specialized variant of the role. for example, |
| michael@0 | 76 | // the role might be "textfield", while the subrole is "password textfield". |
| michael@0 | 77 | - (NSString*)subrole; |
| michael@0 | 78 | |
| michael@0 | 79 | // Return the role description, as there are a few exceptions. |
| michael@0 | 80 | - (NSString*)roleDescription; |
| michael@0 | 81 | |
| michael@0 | 82 | // returns the native window we're inside. |
| michael@0 | 83 | - (NSWindow*)window; |
| michael@0 | 84 | |
| michael@0 | 85 | // the accessible description of this particular instance. |
| michael@0 | 86 | - (NSString*)customDescription; |
| michael@0 | 87 | |
| michael@0 | 88 | // the value of this element. |
| michael@0 | 89 | - (id)value; |
| michael@0 | 90 | |
| michael@0 | 91 | // name that is associated with this accessible (for buttons, etc) |
| michael@0 | 92 | - (NSString*)title; |
| michael@0 | 93 | |
| michael@0 | 94 | // help text associated with this element. |
| michael@0 | 95 | - (NSString*)help; |
| michael@0 | 96 | |
| michael@0 | 97 | - (BOOL)isEnabled; |
| michael@0 | 98 | |
| michael@0 | 99 | // information about focus. |
| michael@0 | 100 | - (BOOL)isFocused; |
| michael@0 | 101 | - (BOOL)canBeFocused; |
| michael@0 | 102 | |
| michael@0 | 103 | // returns NO if for some reason we were unable to focus the element. |
| michael@0 | 104 | - (BOOL)focus; |
| michael@0 | 105 | |
| michael@0 | 106 | // notifications sent out to listening accessible providers. |
| michael@0 | 107 | - (void)didReceiveFocus; |
| michael@0 | 108 | - (void)valueDidChange; |
| michael@0 | 109 | - (void)selectedTextDidChange; |
| michael@0 | 110 | |
| michael@0 | 111 | #pragma mark - |
| michael@0 | 112 | |
| michael@0 | 113 | // invalidates and removes all our children from our cached array. |
| michael@0 | 114 | - (void)invalidateChildren; |
| michael@0 | 115 | |
| michael@0 | 116 | /** |
| michael@0 | 117 | * Append a child if they are already cached. |
| michael@0 | 118 | */ |
| michael@0 | 119 | - (void)appendChild:(mozilla::a11y::Accessible*)aAccessible; |
| michael@0 | 120 | |
| michael@0 | 121 | // makes ourselves "expired". after this point, we might be around if someone |
| michael@0 | 122 | // has retained us (e.g., a third-party), but we really contain no information. |
| michael@0 | 123 | - (void)expire; |
| michael@0 | 124 | - (BOOL)isExpired; |
| michael@0 | 125 | |
| michael@0 | 126 | #ifdef DEBUG |
| michael@0 | 127 | - (void)printHierarchy; |
| michael@0 | 128 | - (void)printHierarchyWithLevel:(unsigned)numSpaces; |
| michael@0 | 129 | |
| michael@0 | 130 | - (void)sanityCheckChildren; |
| michael@0 | 131 | - (void)sanityCheckChildren:(NSArray*)theChildren; |
| michael@0 | 132 | #endif |
| michael@0 | 133 | |
| michael@0 | 134 | // ---- NSAccessibility methods ---- // |
| michael@0 | 135 | |
| michael@0 | 136 | // whether to skip this element when traversing the accessibility |
| michael@0 | 137 | // hierarchy. |
| michael@0 | 138 | - (BOOL)accessibilityIsIgnored; |
| michael@0 | 139 | |
| michael@0 | 140 | // called by third-parties to determine the deepest child element under the mouse |
| michael@0 | 141 | - (id)accessibilityHitTest:(NSPoint)point; |
| michael@0 | 142 | |
| michael@0 | 143 | // returns the deepest unignored focused accessible element |
| michael@0 | 144 | - (id)accessibilityFocusedUIElement; |
| michael@0 | 145 | |
| michael@0 | 146 | // a mozAccessible needs to at least provide links to its parent and |
| michael@0 | 147 | // children. |
| michael@0 | 148 | - (NSArray*)accessibilityAttributeNames; |
| michael@0 | 149 | |
| michael@0 | 150 | // value for the specified attribute |
| michael@0 | 151 | - (id)accessibilityAttributeValue:(NSString*)attribute; |
| michael@0 | 152 | |
| michael@0 | 153 | - (BOOL)accessibilityIsAttributeSettable:(NSString*)attribute; |
| michael@0 | 154 | - (void)accessibilitySetValue:(id)value forAttribute:(NSString*)attribute; |
| michael@0 | 155 | |
| michael@0 | 156 | @end |
| michael@0 | 157 |
