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// Copyright (c) 2009 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/hyperlink_button_cell.h"
@interface HyperlinkButtonCell (Private)
- (NSDictionary*)linkAttributres;
- (void)customizeButtonCell;
@end
@implementation HyperlinkButtonCell
@dynamic textColor;
+ (NSColor*)defaultTextColor {
return [NSColor blueColor];
}
// Designated initializer.
- (id)init {
if ((self = [super init])) {
[self customizeButtonCell];
}
return self;
}
// Initializer called when the cell is loaded from the NIB.
- (id)initWithCoder:(NSCoder*)aDecoder {
if ((self = [super initWithCoder:aDecoder])) {
[self customizeButtonCell];
}
return self;
}
// Initializer for code-based creation.
- (id)initTextCell:(NSString*)title {
if ((self = [super initTextCell:title])) {
[self customizeButtonCell];
}
return self;
}
// Because an NSButtonCell has multiple initializers, this method performs the
// common cell customization code.
- (void)customizeButtonCell {
[self setBordered:NO];
[self setTextColor:[HyperlinkButtonCell defaultTextColor]];
CGFloat fontSize = [NSFont systemFontSizeForControlSize:[self controlSize]];
NSFont* font = [NSFont controlContentFontOfSize:fontSize];
[self setFont:font];
// Do not change button appearance when we are pushed.
// TODO(rsesek): Change text color to red?
[self setHighlightsBy:NSNoCellMask];
// We need to set this so that we can override |-mouseEntered:| and
// |-mouseExited:| to change the cursor style on hover states.
[self setShowsBorderOnlyWhileMouseInside:YES];
}
// Creates the NSDictionary of attributes for the attributed string.
- (NSDictionary*)linkAttributes {
NSUInteger underlineMask = NSUnderlinePatternSolid | NSUnderlineStyleSingle;
scoped_nsobject<NSMutableParagraphStyle> paragraphStyle(
[[NSParagraphStyle defaultParagraphStyle] mutableCopy]);
[paragraphStyle setAlignment:[self alignment]];
return [NSDictionary dictionaryWithObjectsAndKeys:
[self textColor], NSForegroundColorAttributeName,
[NSNumber numberWithInt:underlineMask], NSUnderlineStyleAttributeName,
[self font], NSFontAttributeName,
[NSCursor pointingHandCursor], NSCursorAttributeName,
paragraphStyle.get(), NSParagraphStyleAttributeName,
nil
];
}
// Override the drawing point for the cell so that the custom style attributes
// can always be applied.
- (NSRect)drawTitle:(NSAttributedString*)title
withFrame:(NSRect)frame
inView:(NSView*)controlView {
scoped_nsobject<NSAttributedString> attrString(
[[NSAttributedString alloc] initWithString:[title string]
attributes:[self linkAttributes]]);
return [super drawTitle:attrString.get() withFrame:frame inView:controlView];
}
// Override the default behavior to draw the border. Instead, change the cursor.
- (void)mouseEntered:(NSEvent*)event {
[[NSCursor pointingHandCursor] push];
}
- (void)mouseExited:(NSEvent*)event {
[NSCursor pop];
}
// Setters and getters.
- (NSColor*)textColor {
return textColor_.get();
}
- (void)setTextColor:(NSColor*)color {
textColor_.reset([color retain]);
}
@end
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