blob: 297956153fb174a01d1d9b333350f0512c385003 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import <Cocoa/Cocoa.h>
#import "content/browser/accessibility/browser_accessibility_mac.h"
#import "content/browser/accessibility/browser_accessibility_cocoa.h"
#include "content/browser/accessibility/browser_accessibility_manager_mac.h"
namespace content {
// Static.
BrowserAccessibility* BrowserAccessibility::Create() {
return new BrowserAccessibilityMac();
}
BrowserAccessibilityMac::BrowserAccessibilityMac()
: browser_accessibility_cocoa_(NULL) {
}
bool BrowserAccessibilityMac::IsNative() const {
return true;
}
void BrowserAccessibilityMac::NativeReleaseReference() {
// Detach this object from |browser_accessibility_cocoa_| so it
// no longer has a pointer to this object.
[browser_accessibility_cocoa_ detach];
// Now, release it - but at this point, other processes may have a
// reference to the cocoa object.
[browser_accessibility_cocoa_ release];
// Finally, it's safe to delete this since we've detached.
delete this;
}
void BrowserAccessibilityMac::OnDataChanged() {
BrowserAccessibility::OnDataChanged();
if (browser_accessibility_cocoa_) {
[browser_accessibility_cocoa_ childrenChanged];
return;
}
// We take ownership of the Cocoa object here.
browser_accessibility_cocoa_ =
[[BrowserAccessibilityCocoa alloc] initWithObject:this];
}
uint32_t BrowserAccessibilityMac::PlatformChildCount() const {
uint32_t child_count = BrowserAccessibility::PlatformChildCount();
// If this is a table, include the extra fake nodes generated by
// AXTableInfo, for the column nodes and the table header container, all of
// which are only important on macOS.
std::vector<ui::AXNode*>* extra_mac_nodes = node()->GetExtraMacNodes();
if (!extra_mac_nodes)
return child_count;
return child_count + extra_mac_nodes->size();
}
BrowserAccessibility* BrowserAccessibilityMac::PlatformGetChild(
uint32_t child_index) const {
uint32_t child_count = BrowserAccessibility::PlatformChildCount();
if (child_index < child_count)
return BrowserAccessibility::PlatformGetChild(child_index);
// If this is a table, include the extra fake nodes generated by
// AXTableInfo, for the column nodes and the table header container, all of
// which are only important on macOS.
std::vector<ui::AXNode*>* extra_mac_nodes = node()->GetExtraMacNodes();
if (!extra_mac_nodes)
return nullptr;
child_index -= child_count;
if (child_index < extra_mac_nodes->size())
return manager_->GetFromAXNode((*extra_mac_nodes)[child_index]);
return nullptr;
}
const BrowserAccessibilityCocoa*
ToBrowserAccessibilityCocoa(const BrowserAccessibility* obj) {
DCHECK(obj);
DCHECK(obj->IsNative());
return static_cast<const BrowserAccessibilityMac*>(obj)->native_view();
}
BrowserAccessibilityCocoa* ToBrowserAccessibilityCocoa(
BrowserAccessibility* obj) {
DCHECK(obj);
DCHECK(obj->IsNative());
return static_cast<BrowserAccessibilityMac*>(obj)->native_view();
}
} // namespace content