Clamp Mac theme painting to reasonable large bounds.

third_party/WebKit/Source/core/paint/ThemePainterMac.mm

 /*
  * Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Google, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 39 matching lines @@
 namespace blink {
 
 ThemePainterMac::ThemePainterMac(LayoutThemeMac& layoutTheme, Theme* platformTheme)
     : ThemePainter(platformTheme)
     , m_layoutTheme(layoutTheme)
 {
 }
 
 bool ThemePainterMac::paintTextField(const LayoutObject& o, const PaintInfo& paintInfo, const IntRect& r)
 {
-    LocalCurrentGraphicsContext localContext(paintInfo.context, &paintInfo.cullRect().m_rect, r);
+    LocalCurrentGraphicsContext localContext(paintInfo.context, r);
 
 #if __MAC_OS_X_VERSION_MIN_REQUIRED <= 1070
     bool useNSTextFieldCell = o.styleRef().hasAppearance()
         && o.styleRef().visitedDependentColor(CSSPropertyBackgroundColor) == Color::white
         && !o.styleRef().hasBackgroundImage();
 
     // We do not use NSTextFieldCell to draw styled text fields on Lion and
     // SnowLeopard because there are a number of bugs on those platforms that
     // require NSTextFieldCell to be in charge of painting its own
     // background. We need WebCore to paint styled backgrounds, so we'll use
@@ skipping 13 matching lines @@
 
     [textField setControlView:nil];
 
     return false;
 }
 
 bool ThemePainterMac::paintCapsLockIndicator(const LayoutObject&, const PaintInfo& paintInfo, const IntRect& r)
 {
     // This draws the caps lock indicator as it was done by
     // WKDrawCapsLockIndicator.
-    LocalCurrentGraphicsContext localContext(paintInfo.context, &paintInfo.cullRect().m_rect, r);
+    LocalCurrentGraphicsContext localContext(paintInfo.context, r);
     CGContextRef c = localContext.cgContext();
     CGMutablePathRef shape = CGPathCreateMutable();
 
     // To draw the caps lock indicator, draw the shape into a small
     // square that is then scaled to the size of r.
     const CGFloat kSquareSize = 17;
 
     // Create a rounted square shape.
     CGPathMoveToPoint(shape, NULL, 16.5, 4.5);
     CGPathAddArc(shape, NULL, 12.5, 12.5, 4, 0,        M_PI_2,   false);
@@ skipping 38 matching lines @@
     CGContextBeginPath(c);
     CGContextAddPath(c, paintPath);
     CGContextFillPath(c);
     CGPathRelease(paintPath);
 
     return false;
 }
 
 bool ThemePainterMac::paintTextArea(const LayoutObject& o, const PaintInfo& paintInfo, const IntRect& r)
 {
-    LocalCurrentGraphicsContext localContext(paintInfo.context, &paintInfo.cullRect().m_rect, r);
+    LocalCurrentGraphicsContext localContext(paintInfo.context, r);
     _NSDrawCarbonThemeListBox(r, LayoutTheme::isEnabled(o) && !LayoutTheme::isReadOnlyControl(o), YES, YES);
     return false;
 }
 
 bool ThemePainterMac::paintMenuList(const LayoutObject& o, const PaintInfo& paintInfo, const IntRect& r)
 {
     m_layoutTheme.setPopupButtonCellState(o, r);
 
     NSPopUpButtonCell* popupButton = m_layoutTheme.popupButton();
 
     float zoomLevel = o.styleRef().effectiveZoom();
     IntSize size = m_layoutTheme.popupButtonSizes()[[popupButton controlSize]];
     size.setHeight(size.height() * zoomLevel);
     size.setWidth(r.width());
 
     // Now inflate it to account for the shadow.
     IntRect inflatedRect = r;
     if (r.width() >= m_layoutTheme.minimumMenuListSize(o.styleRef()))
         inflatedRect = ThemeMac::inflateRect(inflatedRect, size, m_layoutTheme.popupButtonMargins(), zoomLevel);
 
-    LocalCurrentGraphicsContext localContext(paintInfo.context, &paintInfo.cullRect().m_rect, ThemeMac::inflateRectForFocusRing(inflatedRect));
+    LocalCurrentGraphicsContext localContext(paintInfo.context, ThemeMac::inflateRectForFocusRing(inflatedRect));
 
     if (zoomLevel != 1.0f) {
         inflatedRect.setWidth(inflatedRect.width() / zoomLevel);
         inflatedRect.setHeight(inflatedRect.height() / zoomLevel);
         paintInfo.context.translate(inflatedRect.x(), inflatedRect.y());
         paintInfo.context.scale(zoomLevel, zoomLevel);
         paintInfo.context.translate(-inflatedRect.x(), -inflatedRect.y());
     }
 
     NSView *view = m_layoutTheme.documentViewFor(o);
@@ skipping 37 matching lines @@
     trackInfo.attributes = kThemeTrackHorizontal;
     trackInfo.enableState = LayoutTheme::isActive(layoutObject) ? kThemeTrackActive : kThemeTrackInactive;
     trackInfo.reserved = 0;
     trackInfo.filler1 = 0;
 
     OwnPtr<ImageBuffer> imageBuffer = ImageBuffer::create(inflatedRect.size());
     if (!imageBuffer)
         return true;
 
     IntRect clipRect = IntRect(IntPoint(), inflatedRect.size());
-    LocalCurrentGraphicsContext localContext(imageBuffer->canvas(), 1, &clipRect, clipRect);
+    LocalCurrentGraphicsContext localContext(imageBuffer->canvas(), 1, clipRect);
     CGContextRef cgContext = localContext.cgContext();
     HIThemeDrawTrack(&trackInfo, 0, cgContext, kHIThemeOrientationNormal);
 
     GraphicsContextStateSaver stateSaver(paintInfo.context);
 
     if (!layoutProgress.styleRef().isLeftToRightDirection()) {
         paintInfo.context.translate(2 * inflatedRect.x() + inflatedRect.width(), 0);
         paintInfo.context.scale(-1, 1);
     }
 
@@ skipping 201 matching lines @@
     int fontSize = style.fontSize();
     if (fontSize >= 13)
         return NSRegularControlSize;
     if (fontSize >= 11)
         return NSSmallControlSize;
     return NSMiniControlSize;
 }
 
 bool ThemePainterMac::paintSearchField(const LayoutObject& o, const PaintInfo& paintInfo, const IntRect& r)
 {
-    LocalCurrentGraphicsContext localContext(paintInfo.context, &paintInfo.cullRect().m_rect, r);
+    LocalCurrentGraphicsContext localContext(paintInfo.context, r);
 
     NSSearchFieldCell* search = m_layoutTheme.search();
     m_layoutTheme.setSearchCellState(o, r);
     [search setControlSize:searchFieldControlSizeForFont(o.styleRef())];
 
     GraphicsContextStateSaver stateSaver(paintInfo.context);
 
     float zoomLevel = o.styleRef().effectiveZoom();
 
     IntRect unzoomedRect = r;
@@ skipping 95 matching lines @@
     float zoomLevel = o.styleRef().effectiveZoom();
     FloatRect unzoomedRect(r);
     if (zoomLevel != 1) {
         unzoomedRect.setWidth(unzoomedRect.width() / zoomLevel);
         unzoomedRect.setHeight(unzoomedRect.height() / zoomLevel);
         paintInfo.context.translate(unzoomedRect.x(), unzoomedRect.y());
         paintInfo.context.scale(zoomLevel, zoomLevel);
         paintInfo.context.translate(-unzoomedRect.x(), -unzoomedRect.y());
     }
 
-    LocalCurrentGraphicsContext localContext(paintInfo.context, &paintInfo.cullRect().m_rect, r);
+    LocalCurrentGraphicsContext localContext(paintInfo.context, r);
 
     NSSearchFieldCell* search = m_layoutTheme.search();
     m_layoutTheme.setSearchCellState(*input->layoutObject(), r);
     [search setControlSize:searchFieldControlSizeForFont(o.styleRef())];
     if ([search searchMenuTemplate] != nil)
         [search setSearchMenuTemplate:nil];
 
     m_layoutTheme.updateActiveState([search searchButtonCell], o);
 
     [[search searchButtonCell] drawWithFrame:unzoomedRect inView:m_layoutTheme.documentViewFor(o)];
     [[search searchButtonCell] setControlView:nil];
     return false;
 }
 
 } // namespace blink