1 /* 2 * Copyright (C) 2007 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #import "config.h" 27 #import "SelectionController.h" 28 29 #import "AXObjectCache.h" 30 #import "Frame.h" 31 #import "RenderView.h" 32 #import "WebCoreViewFactory.h" 33 34 namespace WebCore { 35 36 static CGRect accessibilityConvertScreenRect(CGRect bounds) 37 { 38 NSArray *screens = [NSScreen screens]; 39 if ([screens count]) { 40 CGFloat screenHeight = NSHeight([[screens objectAtIndex:0] frame]); 41 bounds.origin.y = (screenHeight - (bounds.origin.y + bounds.size.height)); 42 } else 43 bounds = CGRectZero; 44 45 return bounds; 46 } 47 48 49 void SelectionController::notifyAccessibilityForSelectionChange() 50 { 51 Document* document = m_frame->document(); 52 53 if (AXObjectCache::accessibilityEnabled() && m_selection.start().isNotNull() && m_selection.end().isNotNull()) 54 document->axObjectCache()->postNotification(m_selection.start().deprecatedNode()->renderer(), AXObjectCache::AXSelectedTextChanged, false); 55 56 // if zoom feature is enabled, insertion point changes should update the zoom 57 if (!UAZoomEnabled() || !m_selection.isCaret()) 58 return; 59 60 RenderView* renderView = document->renderView(); 61 if (!renderView) 62 return; 63 FrameView* frameView = m_frame->view(); 64 if (!frameView) 65 return; 66 67 IntRect selectionRect = absoluteCaretBounds(); 68 IntRect viewRect = renderView->viewRect(); 69 70 selectionRect = frameView->contentsToScreen(selectionRect); 71 viewRect = frameView->contentsToScreen(viewRect); 72 CGRect cgCaretRect = CGRectMake(selectionRect.x(), selectionRect.y(), selectionRect.width(), selectionRect.height()); 73 CGRect cgViewRect = CGRectMake(viewRect.x(), viewRect.y(), viewRect.width(), viewRect.height()); 74 cgCaretRect = accessibilityConvertScreenRect(cgCaretRect); 75 cgViewRect = accessibilityConvertScreenRect(cgViewRect); 76 77 UAZoomChangeFocus(&cgViewRect, &cgCaretRect, kUAZoomFocusTypeInsertionPoint); 78 } 79 80 } // namespace WebCore 81