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-rw-r--r--chrome/browser/cocoa/vertical_layout_view.mm73
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diff --git a/chrome/browser/cocoa/vertical_layout_view.mm b/chrome/browser/cocoa/vertical_layout_view.mm
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--- a/chrome/browser/cocoa/vertical_layout_view.mm
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-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import "chrome/browser/cocoa/vertical_layout_view.h"
-
-@interface VerticalLayoutView(PrivateMethods)
-- (void)layoutChildren;
-@end
-
-@implementation VerticalLayoutView
-
-- (id)initWithFrame:(NSRect)frame {
- self = [super initWithFrame:frame];
- if (self) {
- // Turn auto resizing off, we'll be laying out our children programatically.
- [self setAutoresizesSubviews:NO];
- [self setAutoresizingMask:NSViewNotSizable];
- }
-
- return self;
-}
-
-// Flip the coordinate system to arrange child views from top to bottom
-// with top at 0, increasing down. This simplifies the logic and plays
-// well with containing scroll views.
-- (BOOL)isFlipped {
- return YES;
-}
-
-// Override the default |viewWillDraw| to indicate to drawing machinery proper
-// arrangement of subviews.
-- (void)viewWillDraw {
- // Reposition child views prior to super's descent into its |viewWillDraw|
- // pass.
- [self layoutChildren];
-
- // Default descent into subviews.
- [super viewWillDraw];
-
- // Adjust children again to account for any modifications made during the
- // prior descent. Most importantly we resize our own frame to properly
- // adjust any containing scroll view.
- [self layoutChildren];
-}
-
-@end
-
-@implementation VerticalLayoutView(PrivateMethods)
-
-// This method traverses the immediate subviews measuring their height and
-// adjusting their frames so they are arranged vertically ordered relative
-// to their sibling views. Note the dependency here on the |isFlipped|
-// state. This code assumes |isFlipped| is YES.
-- (void)layoutChildren {
- NSArray* children = [self subviews];
- int childCount = [children count];
-
- CGFloat yPosition = 0.0;
- for (int i = childCount-1; i >= 0; --i) {
- NSView* child = [children objectAtIndex:i];
- [child setFrameOrigin:NSMakePoint([child frame].origin.x, yPosition)];
- yPosition += [child frame].size.height;
- }
-
- // Resize self to reflect vertical extent of children.
- [self setFrame:NSMakeRect([self frame].origin.x,
- [self frame].origin.y,
- [self frame].size.width,
- yPosition)];
-}
-
-@end