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// Copyright (c) 2012 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.
#include "chrome/browser/ui/cocoa/infobars/infobar_gradient_view.h"
#include "base/mac/scoped_nsobject.h"
#import "chrome/browser/themes/theme_properties.h"
#import "chrome/browser/ui/cocoa/browser_window_controller.h"
#import "chrome/browser/ui/cocoa/infobars/infobar_container_controller.h"
#import "chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h"
#import "chrome/browser/ui/cocoa/themed_window.h"
#include "chrome/browser/ui/infobar_container_delegate.h"
#include "components/infobars/core/infobar.h"
#include "skia/ext/skia_utils_mac.h"
#import "ui/base/cocoa/nsview_additions.h"
#include "ui/base/theme_provider.h"
@implementation InfoBarGradientView
@synthesize arrowHeight = arrowHeight_;
@synthesize arrowHalfWidth = arrowHalfWidth_;
@synthesize arrowX = arrowX_;
@synthesize hasTip = hasTip_;
- (id)initWithFrame:(NSRect)frame {
if ((self = [super initWithFrame:frame])) {
hasTip_ = YES;
}
return self;
}
- (id)initWithCoder:(NSCoder*)decoder {
if ((self = [super initWithCoder:decoder])) {
hasTip_ = YES;
}
return self;
}
- (void)setInfobarType:(infobars::InfoBarDelegate::Type)infobarType {
SkColor topColor = infobars::InfoBar::GetTopColor(infobarType);
SkColor bottomColor = infobars::InfoBar::GetBottomColor(infobarType);
base::scoped_nsobject<NSGradient> gradient([[NSGradient alloc]
initWithStartingColor:gfx::SkColorToCalibratedNSColor(topColor)
endingColor:gfx::SkColorToCalibratedNSColor(bottomColor)]);
[self setGradient:gradient];
}
- (NSColor*)strokeColor {
ui::ThemeProvider* themeProvider = [[self window] themeProvider];
if (!themeProvider)
return [NSColor blackColor];
BOOL active = [[self window] isMainWindow];
return themeProvider->GetNSColor(
active ? ThemeProperties::COLOR_TOOLBAR_STROKE :
ThemeProperties::COLOR_TOOLBAR_STROKE_INACTIVE);
}
- (void)drawRect:(NSRect)rect {
NSRect bounds = [self bounds];
bounds.size.height = InfoBarContainerDelegate::kDefaultBarTargetHeight;
CGFloat tipXOffset = arrowX_ - arrowHalfWidth_;
// Around the bounds of the infobar, continue drawing the path into which the
// gradient will be drawn.
NSBezierPath* infoBarPath = [NSBezierPath bezierPath];
[infoBarPath moveToPoint:NSMakePoint(NSMinX(bounds), NSMaxY(bounds))];
// Draw the tip.
if (hasTip_) {
[infoBarPath lineToPoint:NSMakePoint(tipXOffset, NSMaxY(bounds))];
[infoBarPath relativeLineToPoint:NSMakePoint(arrowHalfWidth_,
arrowHeight_)];
[infoBarPath relativeLineToPoint:NSMakePoint(arrowHalfWidth_,
-arrowHeight_)];
}
[infoBarPath lineToPoint:NSMakePoint(NSMaxX(bounds), NSMaxY(bounds))];
// Save off the top path of the infobar.
base::scoped_nsobject<NSBezierPath> topPath([infoBarPath copy]);
[infoBarPath lineToPoint:NSMakePoint(NSMaxX(bounds), NSMinY(bounds))];
[infoBarPath lineToPoint:NSMakePoint(NSMinX(bounds), NSMinY(bounds))];
[infoBarPath closePath];
// Draw the gradient.
[[self gradient] drawInBezierPath:infoBarPath angle:270];
NSColor* strokeColor = [self strokeColor];
if (strokeColor) {
[strokeColor set];
// Stroke the bottom of the infobar.
NSRect borderRect, contentRect;
NSDivideRect(bounds, &borderRect, &contentRect, 1, NSMinYEdge);
NSRectFillUsingOperation(borderRect, NSCompositeSourceOver);
// Re-stroke the top because the tip will have no stroke. This will draw
// over the divider drawn by the bottom of the tabstrip.
[topPath stroke];
}
// Add an inner stroke.
const CGFloat kHighlightTipHeight = arrowHeight_ - 1;
NSBezierPath* highlightPath = [NSBezierPath bezierPath];
[highlightPath moveToPoint:NSMakePoint(NSMinX(bounds), NSMaxY(bounds) - 1)];
if (hasTip_) {
[highlightPath relativeLineToPoint:NSMakePoint(tipXOffset + 1, 0)];
[highlightPath relativeLineToPoint:NSMakePoint(arrowHalfWidth_ - 1,
kHighlightTipHeight)];
[highlightPath relativeLineToPoint:NSMakePoint(arrowHalfWidth_ - 1,
-kHighlightTipHeight)];
}
[highlightPath lineToPoint:NSMakePoint(NSMaxX(bounds), NSMaxY(bounds) - 1)];
[[NSColor colorWithDeviceWhite:1.0 alpha:1.0] setStroke];
[highlightPath stroke];
}
- (BOOL)mouseDownCanMoveWindow {
return NO;
}
// This view is intentionally not opaque because it overlaps with the findbar.
- (BOOL)accessibilityIsIgnored {
return NO;
}
- (id)accessibilityAttributeValue:(NSString*)attribute {
if ([attribute isEqual:NSAccessibilityRoleAttribute])
return NSAccessibilityGroupRole;
return [super accessibilityAttributeValue:attribute];
}
- (void)setHasTip:(BOOL)hasTip {
if (hasTip_ == hasTip)
return;
hasTip_ = hasTip;
[self setNeedsDisplay:YES];
}
@end
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