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 <JavaScriptCore/Assertions.h>

    35 

    36 static 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 

    46 static CFMutableDictionaryRef sViewMap;

    47 

    48 static IMP oldNSViewSetNeedsDisplayIMP;

    49 static IMP oldNSViewSetNeedsDisplayInRectIMP;

    50 static IMP oldNSViewNextValidKeyViewIMP;

    51 

    52 static void _webkit_NSView_setNeedsDisplay(id self, SEL _cmd, BOOL flag);

    53 static void _webkit_NSView_setNeedsDisplayInRect(id self, SEL _cmd, NSRect invalidRect);

    54 static 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 

    93 static 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 

   136 static 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 

   182 static 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 

   192 static 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