1// Copyright (c) 2009 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#import <Cocoa/Cocoa.h> 6#import "chrome/browser/ui/cocoa/fast_resize_view.h" 7 8#include "base/logging.h" 9 10@interface FastResizeView (PrivateMethods) 11// Lays out this views subviews. If fast resize mode is on, does not resize any 12// subviews and instead pegs them to the top left. If fast resize mode is off, 13// sets the subviews' frame to be equal to this view's bounds. 14- (void)layoutSubviews; 15@end 16 17@implementation FastResizeView 18- (void)setFastResizeMode:(BOOL)fastResizeMode { 19 fastResizeMode_ = fastResizeMode; 20 21 // Force a relayout when coming out of fast resize mode. 22 if (!fastResizeMode_) 23 [self layoutSubviews]; 24} 25 26- (void)resizeSubviewsWithOldSize:(NSSize)oldSize { 27 [self layoutSubviews]; 28} 29 30- (void)drawRect:(NSRect)dirtyRect { 31 // If we are in fast resize mode, our subviews may not completely cover our 32 // bounds, so we fill with white. If we are not in fast resize mode, we do 33 // not need to draw anything. 34 if (fastResizeMode_) { 35 [[NSColor whiteColor] set]; 36 NSRectFill(dirtyRect); 37 } 38} 39 40 41@end 42 43@implementation FastResizeView (PrivateMethods) 44- (void)layoutSubviews { 45 // There should never be more than one subview. There can be zero, if we are 46 // in the process of switching tabs or closing the window. In those cases, no 47 // layout is needed. 48 NSArray* subviews = [self subviews]; 49 DCHECK([subviews count] <= 1); 50 if ([subviews count] < 1) 51 return; 52 53 NSView* subview = [subviews objectAtIndex:0]; 54 NSRect bounds = [self bounds]; 55 56 if (fastResizeMode_) { 57 NSRect frame = [subview frame]; 58 frame.origin.x = 0; 59 frame.origin.y = NSHeight(bounds) - NSHeight(frame); 60 [subview setFrame:frame]; 61 } else { 62 [subview setFrame:bounds]; 63 } 64} 65@end 66