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// Copyright (c) 2011 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/ui/cocoa/bubble_view.h"
#include "chrome/browser/themes/theme_properties.h"
#import "chrome/browser/ui/cocoa/themed_window.h"
#import "third_party/google_toolbox_for_mac/src/AppKit/GTMNSBezierPath+RoundRect.h"
#import "third_party/google_toolbox_for_mac/src/AppKit/GTMNSColor+Luminance.h"
#include "ui/base/theme_provider.h"
// The roundedness of the edges of the bubble. This matches the value used on
// Lion for window corners.
const int kBubbleCornerRadius = 3;
const float kWindowEdge = 0.7f;
@implementation BubbleView
// Designated initializer. |provider| is the window from which we get the
// current theme to draw text and backgrounds. If nil, the current window will
// be checked. The caller needs to ensure |provider| can't go away as it will
// not be retained. Defaults to all corners being rounded.
- (id)initWithFrame:(NSRect)frame themeProvider:(NSWindow*)provider {
if ((self = [super initWithFrame:frame])) {
cornerFlags_ = kRoundedAllCorners;
themeProvider_ = provider;
}
return self;
}
// Sets the string displayed in the bubble. A copy of the string is made.
- (void)setContent:(NSString*)content {
if ([content_ isEqualToString:content])
return;
content_.reset([content copy]);
[self setNeedsDisplay:YES];
}
// Sets which corners will be rounded.
- (void)setCornerFlags:(unsigned long)flags {
if (cornerFlags_ == flags)
return;
cornerFlags_ = flags;
[self setNeedsDisplay:YES];
}
- (void)setThemeProvider:(NSWindow*)provider {
if (themeProvider_ == provider)
return;
themeProvider_ = provider;
[self setNeedsDisplay:YES];
}
- (NSString*)content {
return content_.get();
}
- (unsigned long)cornerFlags {
return cornerFlags_;
}
// The font used to display the content string.
- (NSFont*)font {
return [NSFont systemFontOfSize:[NSFont smallSystemFontSize]];
}
// Draws the themed background and the text. Will draw a gray bg if no theme.
- (void)drawRect:(NSRect)rect {
float topLeftRadius =
cornerFlags_ & kRoundedTopLeftCorner ? kBubbleCornerRadius : 0;
float topRightRadius =
cornerFlags_ & kRoundedTopRightCorner ? kBubbleCornerRadius : 0;
float bottomLeftRadius =
cornerFlags_ & kRoundedBottomLeftCorner ? kBubbleCornerRadius : 0;
float bottomRightRadius =
cornerFlags_ & kRoundedBottomRightCorner ? kBubbleCornerRadius : 0;
ui::ThemeProvider* themeProvider =
themeProvider_ ? [themeProvider_ themeProvider] :
[[self window] themeProvider];
// Background / Edge
NSRect bounds = [self bounds];
bounds = NSInsetRect(bounds, 0.5, 0.5);
NSBezierPath* border =
[NSBezierPath gtm_bezierPathWithRoundRect:bounds
topLeftCornerRadius:topLeftRadius
topRightCornerRadius:topRightRadius
bottomLeftCornerRadius:bottomLeftRadius
bottomRightCornerRadius:bottomRightRadius];
if (themeProvider)
[themeProvider->GetNSColor(ThemeProperties::COLOR_TOOLBAR) set];
[border fill];
[[NSColor colorWithDeviceWhite:kWindowEdge alpha:1.0f] set];
[border stroke];
// Text
NSColor* textColor = [NSColor blackColor];
if (themeProvider)
textColor = themeProvider->GetNSColor(ThemeProperties::COLOR_TAB_TEXT);
NSFont* textFont = [self font];
base::scoped_nsobject<NSShadow> textShadow([[NSShadow alloc] init]);
[textShadow setShadowBlurRadius:0.0f];
[textShadow.get() setShadowColor:[textColor gtm_legibleTextColor]];
[textShadow.get() setShadowOffset:NSMakeSize(0.0f, -1.0f)];
NSDictionary* textDict = [NSDictionary dictionaryWithObjectsAndKeys:
textColor, NSForegroundColorAttributeName,
textFont, NSFontAttributeName,
textShadow.get(), NSShadowAttributeName,
nil];
[content_ drawAtPoint:NSMakePoint(kBubbleViewTextPositionX,
kBubbleViewTextPositionY)
withAttributes:textDict];
}
@end
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