webengine/osswebengine/WebKit/Carbon/HIViewAdapter.m
changeset 0 dd21522fd290
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebKit/Carbon/HIViewAdapter.m	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,248 @@
+/*
+ * Copyright (C) 2005, 2007 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __LP64__
+
+#import "HIViewAdapter.h"
+
+#import "WebNSObjectExtras.h"
+#import <JavaScriptCore/Assertions.h>
+
+static void SetViewNeedsDisplay(HIViewRef inView, RgnHandle inRegion, Boolean inNeedsDisplay);
+
+#define WATCH_INVALIDATION 0
+
+@interface NSView(ShhhhDontTell)
+- (NSRect)_dirtyRect;
+@end
+
+@implementation HIViewAdapter
+
+static CFMutableDictionaryRef sViewMap;
+
+static IMP oldNSViewSetNeedsDisplayIMP;
+static IMP oldNSViewSetNeedsDisplayInRectIMP;
+static IMP oldNSViewNextValidKeyViewIMP;
+
+static void _webkit_NSView_setNeedsDisplay(id self, SEL _cmd, BOOL flag);
+static void _webkit_NSView_setNeedsDisplayInRect(id self, SEL _cmd, NSRect invalidRect);
+static NSView *_webkit_NSView_nextValidKeyView(id self, SEL _cmd);
+
++ (void)bindHIViewToNSView:(HIViewRef)hiView nsView:(NSView*)nsView
+{
+    if (sViewMap == NULL) {
+        sViewMap = CFDictionaryCreateMutable(NULL, 0, NULL, NULL);
+
+        // Override -[NSView setNeedsDisplay:]
+        Method setNeedsDisplayMethod = class_getInstanceMethod(objc_getClass("NSView"), @selector(setNeedsDisplay:));
+        ASSERT(setNeedsDisplayMethod);
+        ASSERT(!oldNSViewSetNeedsDisplayIMP);
+        oldNSViewSetNeedsDisplayIMP = method_setImplementation(setNeedsDisplayMethod, (IMP)_webkit_NSView_setNeedsDisplay);
+
+        // Override -[NSView setNeedsDisplayInRect:]
+        Method setNeedsDisplayInRectMethod = class_getInstanceMethod(objc_getClass("NSView"), @selector(setNeedsDisplayInRect:));
+        ASSERT(setNeedsDisplayInRectMethod);
+        ASSERT(!oldNSViewSetNeedsDisplayInRectIMP);
+        oldNSViewSetNeedsDisplayInRectIMP = method_setImplementation(setNeedsDisplayInRectMethod, (IMP)_webkit_NSView_setNeedsDisplayInRect);
+
+        // Override -[NSView nextValidKeyView]
+        Method nextValidKeyViewMethod = class_getInstanceMethod(objc_getClass("NSView"), @selector(nextValidKeyView));
+        ASSERT(nextValidKeyViewMethod);
+        ASSERT(!oldNSViewNextValidKeyViewIMP);
+        oldNSViewNextValidKeyViewIMP = method_setImplementation(nextValidKeyViewMethod, (IMP)_webkit_NSView_nextValidKeyView);
+    }
+
+    CFDictionaryAddValue(sViewMap, nsView, hiView);
+}
+
++ (HIViewRef)getHIViewForNSView:(NSView*)inView
+{
+    return sViewMap ? (HIViewRef)CFDictionaryGetValue(sViewMap, inView) : NULL;
+}
+
++ (void)unbindNSView:(NSView*)inView
+{
+    CFDictionaryRemoveValue(sViewMap, inView);
+}
+
+static void _webkit_NSView_setNeedsDisplay(id self, SEL _cmd, BOOL flag)
+{
+    oldNSViewSetNeedsDisplayIMP(self, _cmd, flag);
+
+    if (!flag) {
+        HIViewRef hiView = NULL;
+        NSRect targetBounds = [self visibleRect];
+        NSRect validRect = targetBounds;
+        NSView *view = self;
+        
+        while (view) {
+            targetBounds = [view visibleRect];
+            if ((hiView = [HIViewAdapter getHIViewForNSView:view]) != NULL)
+                break;
+            validRect = [view convertRect:validRect toView:[view superview]];
+            view = [view superview];
+        }
+        
+        if (hiView) {            
+            // Flip rect here and convert to region
+            HIRect rect;
+            rect.origin.x = validRect.origin.x;
+            rect.origin.y = targetBounds.size.height - NSMaxY(validRect);
+            rect.size.height = validRect.size.height;
+            rect.size.width = validRect.size.width;
+            
+            // For now, call the region-based API.
+            RgnHandle rgn = NewRgn();
+            if (rgn) {
+                Rect qdRect;
+                qdRect.top = (SInt16)rect.origin.y;
+                qdRect.left = (SInt16)rect.origin.x;
+                qdRect.bottom = CGRectGetMaxY(rect);
+                qdRect.right = CGRectGetMaxX(rect);
+                
+                RectRgn(rgn, &qdRect);
+                SetViewNeedsDisplay(hiView, rgn, false);
+                DisposeRgn(rgn);
+            }
+        }
+    }
+}
+
+static void _webkit_NSView_setNeedsDisplayInRect(id self, SEL _cmd, NSRect invalidRect)
+{
+    invalidRect = NSUnionRect(invalidRect, [self _dirtyRect]);
+    oldNSViewSetNeedsDisplayInRectIMP(self, _cmd, invalidRect);
+    
+    if (!NSIsEmptyRect(invalidRect)) {
+        HIViewRef hiView = NULL;
+        NSRect targetBounds = [self bounds];
+        NSView *view = self;
+        
+        while (view) {
+            targetBounds = [view bounds];
+            if ((hiView = [HIViewAdapter getHIViewForNSView:view]) != NULL)
+                break;
+            invalidRect = [view convertRect:invalidRect toView:[view superview]];
+            view = [view superview];
+        }
+        
+        if (hiView) {
+            if (NSWidth(invalidRect) > 0 && NSHeight(invalidRect)) {                
+                // Flip rect here and convert to region
+                HIRect rect;
+                rect.origin.x = invalidRect.origin.x;
+                rect.origin.y = targetBounds.size.height - NSMaxY(invalidRect);
+                rect.size.height = invalidRect.size.height;
+                rect.size.width = invalidRect.size.width;
+                
+                // For now, call the region-based API.
+                RgnHandle rgn = NewRgn();
+                if (rgn) {
+                    Rect qdRect;
+                    qdRect.top = (SInt16)rect.origin.y;
+                    qdRect.left = (SInt16)rect.origin.x;
+                    qdRect.bottom = CGRectGetMaxY(rect);
+                    qdRect.right = CGRectGetMaxX(rect);
+                    
+                    RectRgn(rgn, &qdRect);
+                    SetViewNeedsDisplay(hiView, rgn, true);
+                    DisposeRgn(rgn);
+                }
+            }
+        } else
+            [[self window] setViewsNeedDisplay:YES];
+    }
+}
+
+static NSView *_webkit_NSView_nextValidKeyView(id self, SEL _cmd)
+{
+    if ([HIViewAdapter getHIViewForNSView:self])
+        return [[self window] contentView];
+    else
+        return oldNSViewNextValidKeyViewIMP(self, _cmd);
+}
+
+@end
+
+static void SetViewNeedsDisplay(HIViewRef inHIView, RgnHandle inRegion, Boolean inNeedsDisplay)
+{
+    WindowAttributes attrs;
+    
+    GetWindowAttributes(GetControlOwner(inHIView), &attrs);
+    
+    if (attrs & kWindowCompositingAttribute) {
+#if WATCH_INVALIDATION
+        Rect bounds;
+        GetRegionBounds(inRegion, &bounds);
+        printf("%s: rect on input %d %d %d %d\n", inNeedsDisplay ? "INVALIDATE" : "VALIDATE",
+                bounds.top, bounds.left, bounds.bottom, bounds.right);
+#endif
+        HIViewSetNeedsDisplayInRegion(inHIView, inRegion, inNeedsDisplay);
+    } else {
+        Rect bounds, cntlBounds;
+        GrafPtr port, savePort;
+        Rect portBounds;
+        
+#if WATCH_INVALIDATION
+        printf("%s: rect on input %d %d %d %d\n", inNeedsDisplay ? "INVALIDATE" : "VALIDATE",
+                bounds.top, bounds.left, bounds.bottom, bounds.right);
+#endif
+        GetControlBounds(inHIView, &cntlBounds);
+        
+#if WATCH_INVALIDATION
+        printf("%s: control bounds are %d %d %d %d\n", inNeedsDisplay ? "INVALIDATE" : "VALIDATE",
+                cntlBounds.top, cntlBounds.left, cntlBounds.bottom, cntlBounds.right);
+#endif
+        
+        port = GetWindowPort(GetControlOwner(inHIView));
+        
+        GetPort(&savePort);
+        SetPort(port);
+        GetPortBounds(port, &portBounds);
+        SetOrigin(0, 0);
+        
+        OffsetRgn(inRegion, cntlBounds.left, cntlBounds.top);
+        
+        GetRegionBounds(inRegion, &bounds);
+        
+#if WATCH_INVALIDATION
+        printf("%s: rect in port coords %d %d %d %d\n", inNeedsDisplay ? "INVALIDATE" : "VALIDATE",
+                bounds.top, bounds.left, bounds.bottom, bounds.right);
+#endif
+        
+        if (inNeedsDisplay)
+            InvalWindowRgn(GetControlOwner(inHIView), inRegion);
+        else
+            ValidWindowRgn(GetControlOwner(inHIView), inRegion);
+        
+        SetOrigin(portBounds.left, portBounds.top);
+        SetPort(savePort);
+    }
+}
+
+#endif