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1/*
2 * Copyright (C) 2005, 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 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 *     its contributors may be used to endorse or promote products derived
15 *     from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23    * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef __LP64__
30
31#import "HIViewAdapter.h"
32
33#import "WebNSObjectExtras.h"
34#import <wtf/Assertions.h>
35
36static void SetViewNeedsDisplay(HIViewRef inView, RgnHandle inRegion, Boolean inNeedsDisplay);
37
38#define WATCH_INVALIDATION 0
39
40@interface NSView(ShhhhDontTell)
41- (NSRect)_dirtyRect;
42@end
43
44@implementation HIViewAdapter
45
46static CFMutableDictionaryRef sViewMap;
47
48static IMP oldNSViewSetNeedsDisplayIMP;
49static IMP oldNSViewSetNeedsDisplayInRectIMP;
50static IMP oldNSViewNextValidKeyViewIMP;
51
52static void _webkit_NSView_setNeedsDisplay(id self, SEL _cmd, BOOL flag);
53static void _webkit_NSView_setNeedsDisplayInRect(id self, SEL _cmd, NSRect invalidRect);
54static NSView *_webkit_NSView_nextValidKeyView(id self, SEL _cmd);
55
56+ (void)bindHIViewToNSView:(HIViewRef)hiView nsView:(NSView*)nsView
57{
58    if (sViewMap == NULL) {
59        sViewMap = CFDictionaryCreateMutable(NULL, 0, NULL, NULL);
60
61        // Override -[NSView setNeedsDisplay:]
62        Method setNeedsDisplayMethod = class_getInstanceMethod(objc_getClass("NSView"), @selector(setNeedsDisplay:));
63        ASSERT(setNeedsDisplayMethod);
64        ASSERT(!oldNSViewSetNeedsDisplayIMP);
65        oldNSViewSetNeedsDisplayIMP = method_setImplementation(setNeedsDisplayMethod, (IMP)_webkit_NSView_setNeedsDisplay);
66
67        // Override -[NSView setNeedsDisplayInRect:]
68        Method setNeedsDisplayInRectMethod = class_getInstanceMethod(objc_getClass("NSView"), @selector(setNeedsDisplayInRect:));
69        ASSERT(setNeedsDisplayInRectMethod);
70        ASSERT(!oldNSViewSetNeedsDisplayInRectIMP);
71        oldNSViewSetNeedsDisplayInRectIMP = method_setImplementation(setNeedsDisplayInRectMethod, (IMP)_webkit_NSView_setNeedsDisplayInRect);
72
73        // Override -[NSView nextValidKeyView]
74        Method nextValidKeyViewMethod = class_getInstanceMethod(objc_getClass("NSView"), @selector(nextValidKeyView));
75        ASSERT(nextValidKeyViewMethod);
76        ASSERT(!oldNSViewNextValidKeyViewIMP);
77        oldNSViewNextValidKeyViewIMP = method_setImplementation(nextValidKeyViewMethod, (IMP)_webkit_NSView_nextValidKeyView);
78    }
79
80    CFDictionaryAddValue(sViewMap, nsView, hiView);
81}
82
83+ (HIViewRef)getHIViewForNSView:(NSView*)inView
84{
85    return sViewMap ? (HIViewRef)CFDictionaryGetValue(sViewMap, inView) : NULL;
86}
87
88+ (void)unbindNSView:(NSView*)inView
89{
90    CFDictionaryRemoveValue(sViewMap, inView);
91}
92
93static void _webkit_NSView_setNeedsDisplay(id self, SEL _cmd, BOOL flag)
94{
95    oldNSViewSetNeedsDisplayIMP(self, _cmd, flag);
96
97    if (!flag) {
98        HIViewRef hiView = NULL;
99        NSRect targetBounds = [self visibleRect];
100        NSRect validRect = targetBounds;
101        NSView *view = self;
102
103        while (view) {
104            targetBounds = [view visibleRect];
105            if ((hiView = [HIViewAdapter getHIViewForNSView:view]) != NULL)
106                break;
107            validRect = [view convertRect:validRect toView:[view superview]];
108            view = [view superview];
109        }
110
111        if (hiView) {
112            // Flip rect here and convert to region
113            HIRect rect;
114            rect.origin.x = validRect.origin.x;
115            rect.origin.y = targetBounds.size.height - NSMaxY(validRect);
116            rect.size.height = validRect.size.height;
117            rect.size.width = validRect.size.width;
118
119            // For now, call the region-based API.
120            RgnHandle rgn = NewRgn();
121            if (rgn) {
122                Rect qdRect;
123                qdRect.top = (SInt16)rect.origin.y;
124                qdRect.left = (SInt16)rect.origin.x;
125                qdRect.bottom = CGRectGetMaxY(rect);
126                qdRect.right = CGRectGetMaxX(rect);
127
128                RectRgn(rgn, &qdRect);
129                SetViewNeedsDisplay(hiView, rgn, false);
130                DisposeRgn(rgn);
131            }
132        }
133    }
134}
135
136static void _webkit_NSView_setNeedsDisplayInRect(id self, SEL _cmd, NSRect invalidRect)
137{
138    invalidRect = NSUnionRect(invalidRect, [self _dirtyRect]);
139    oldNSViewSetNeedsDisplayInRectIMP(self, _cmd, invalidRect);
140
141    if (!NSIsEmptyRect(invalidRect)) {
142        HIViewRef hiView = NULL;
143        NSRect targetBounds = [self bounds];
144        NSView *view = self;
145
146        while (view) {
147            targetBounds = [view bounds];
148            if ((hiView = [HIViewAdapter getHIViewForNSView:view]) != NULL)
149                break;
150            invalidRect = [view convertRect:invalidRect toView:[view superview]];
151            view = [view superview];
152        }
153
154        if (hiView) {
155            if (NSWidth(invalidRect) > 0 && NSHeight(invalidRect)) {
156                // Flip rect here and convert to region
157                HIRect rect;
158                rect.origin.x = invalidRect.origin.x;
159                rect.origin.y = targetBounds.size.height - NSMaxY(invalidRect);
160                rect.size.height = invalidRect.size.height;
161                rect.size.width = invalidRect.size.width;
162
163                // For now, call the region-based API.
164                RgnHandle rgn = NewRgn();
165                if (rgn) {
166                    Rect qdRect;
167                    qdRect.top = (SInt16)rect.origin.y;
168                    qdRect.left = (SInt16)rect.origin.x;
169                    qdRect.bottom = CGRectGetMaxY(rect);
170                    qdRect.right = CGRectGetMaxX(rect);
171
172                    RectRgn(rgn, &qdRect);
173                    SetViewNeedsDisplay(hiView, rgn, true);
174                    DisposeRgn(rgn);
175                }
176            }
177        } else
178            [[self window] setViewsNeedDisplay:YES];
179    }
180}
181
182static NSView *_webkit_NSView_nextValidKeyView(id self, SEL _cmd)
183{
184    if ([HIViewAdapter getHIViewForNSView:self])
185        return [[self window] contentView];
186    else
187        return oldNSViewNextValidKeyViewIMP(self, _cmd);
188}
189
190@end
191
192static void SetViewNeedsDisplay(HIViewRef inHIView, RgnHandle inRegion, Boolean inNeedsDisplay)
193{
194    WindowAttributes attrs;
195
196    GetWindowAttributes(GetControlOwner(inHIView), &attrs);
197
198    if (attrs & kWindowCompositingAttribute) {
199#if WATCH_INVALIDATION
200        Rect bounds;
201        GetRegionBounds(inRegion, &bounds);
202        printf("%s: rect on input %d %d %d %d\n", inNeedsDisplay ? "INVALIDATE" : "VALIDATE",
203                bounds.top, bounds.left, bounds.bottom, bounds.right);
204#endif
205        HIViewSetNeedsDisplayInRegion(inHIView, inRegion, inNeedsDisplay);
206    } else {
207        Rect bounds, cntlBounds;
208        GrafPtr port, savePort;
209        Rect portBounds;
210
211#if WATCH_INVALIDATION
212        printf("%s: rect on input %d %d %d %d\n", inNeedsDisplay ? "INVALIDATE" : "VALIDATE",
213                bounds.top, bounds.left, bounds.bottom, bounds.right);
214#endif
215        GetControlBounds(inHIView, &cntlBounds);
216
217#if WATCH_INVALIDATION
218        printf("%s: control bounds are %d %d %d %d\n", inNeedsDisplay ? "INVALIDATE" : "VALIDATE",
219                cntlBounds.top, cntlBounds.left, cntlBounds.bottom, cntlBounds.right);
220#endif
221
222        port = GetWindowPort(GetControlOwner(inHIView));
223
224        GetPort(&savePort);
225        SetPort(port);
226        GetPortBounds(port, &portBounds);
227        SetOrigin(0, 0);
228
229        OffsetRgn(inRegion, cntlBounds.left, cntlBounds.top);
230
231        GetRegionBounds(inRegion, &bounds);
232
233#if WATCH_INVALIDATION
234        printf("%s: rect in port coords %d %d %d %d\n", inNeedsDisplay ? "INVALIDATE" : "VALIDATE",
235                bounds.top, bounds.left, bounds.bottom, bounds.right);
236#endif
237
238        if (inNeedsDisplay)
239            InvalWindowRgn(GetControlOwner(inHIView), inRegion);
240        else
241            ValidWindowRgn(GetControlOwner(inHIView), inRegion);
242
243        SetOrigin(portBounds.left, portBounds.top);
244        SetPort(savePort);
245    }
246}
247
248#endif
249