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// 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) {
}
void BrowserAccessibilityMac::OnDataChanged() {
BrowserAccessibility::OnDataChanged();
if (browser_accessibility_cocoa_) {
[browser_accessibility_cocoa_ childrenChanged];
return;
}
// We take ownership of the cocoa obj here.
browser_accessibility_cocoa_ = [[BrowserAccessibilityCocoa alloc]
initWithObject:this];
}
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;
}
bool BrowserAccessibilityMac::IsNative() const {
return true;
}
void BrowserAccessibilityMac::RecreateNativeObject() {
if (!browser_accessibility_cocoa_)
return;
// Preserve the children so that recreating the native object doesn't
// end up recreating the whole subtree.
base::scoped_nsobject<NSMutableArray> children;
[browser_accessibility_cocoa_ swapChildren:&children];
[browser_accessibility_cocoa_ detach];
[browser_accessibility_cocoa_ release];
browser_accessibility_cocoa_ = [[BrowserAccessibilityCocoa alloc]
initWithObject:this];
[browser_accessibility_cocoa_ swapChildren:&children];
}
BrowserAccessibilityCocoa* BrowserAccessibility::ToBrowserAccessibilityCocoa() {
return static_cast<BrowserAccessibilityMac*>(this)->
native_view();
}
} // namespace content
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