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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/bookmarks/bookmark_bar_toolbar_view.h"
#include "chrome/browser/ntp_background_util.h"
#include "chrome/browser/themes/theme_service.h"
#import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_constants.h"
#import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h"
#import "chrome/browser/ui/cocoa/browser_window_controller.h"
#import "chrome/browser/ui/cocoa/themed_window.h"
#include "ui/base/theme_provider.h"
#include "ui/gfx/canvas_skia_paint.h"
#include "ui/gfx/rect.h"
const CGFloat kBorderRadius = 3.0;
@interface BookmarkBarToolbarView (Private)
- (void)drawRectAsBubble:(NSRect)rect;
@end
@implementation BookmarkBarToolbarView
- (BOOL)isOpaque {
return [controller_ isInState:bookmarks::kDetachedState];
}
- (void)resetCursorRects {
NSCursor *arrow = [NSCursor arrowCursor];
[self addCursorRect:[self visibleRect] cursor:arrow];
[arrow setOnMouseEntered:YES];
}
- (void)drawRect:(NSRect)rect {
if ([controller_ isInState:bookmarks::kDetachedState] ||
[controller_ isAnimatingToState:bookmarks::kDetachedState] ||
[controller_ isAnimatingFromState:bookmarks::kDetachedState]) {
[self drawRectAsBubble:rect];
} else {
NSPoint phase = [[self window] themePatternPhase];
[[NSGraphicsContext currentContext] setPatternPhase:phase];
[self drawBackground];
}
}
- (void)drawRectAsBubble:(NSRect)rect {
// The state of our morph; 1 is total bubble, 0 is the regular bar. We use it
// to morph the bubble to a regular bar (shape and colour).
CGFloat morph = [controller_ detachedMorphProgress];
NSRect bounds = [self bounds];
ui::ThemeProvider* themeProvider = [controller_ themeProvider];
if (!themeProvider)
return;
NSGraphicsContext* context = [NSGraphicsContext currentContext];
[context saveGraphicsState];
// Draw the background.
{
// CanvasSkiaPaint draws to the NSGraphicsContext during its destructor, so
// explicitly scope this.
//
// Paint the entire bookmark bar, even if the damage rect is much smaller
// because PaintBackgroundDetachedMode() assumes that area's origin is
// (0, 0) and that its size is the size of the bookmark bar.
//
// In practice, this sounds worse than it is because redraw time is still
// minimal compared to the pause between frames of animations. We were
// already repainting the rest of the bookmark bar below without setting a
// clip area, anyway. Also, the only time we weren't asked to redraw the
// whole bookmark bar is when the find bar is drawn over it.
gfx::CanvasSkiaPaint canvas(bounds, true);
gfx::Rect area(0, 0, NSWidth(bounds), NSHeight(bounds));
NtpBackgroundUtil::PaintBackgroundDetachedMode(themeProvider, &canvas,
area, [controller_ currentTabContentsHeight]);
}
// Draw our bookmark bar border on top of the background.
NSRect frameRect =
NSMakeRect(
morph * bookmarks::kNTPBookmarkBarPadding,
morph * bookmarks::kNTPBookmarkBarPadding,
NSWidth(bounds) - 2 * morph * bookmarks::kNTPBookmarkBarPadding,
NSHeight(bounds) - 2 * morph * bookmarks::kNTPBookmarkBarPadding);
// Now draw a bezier path with rounded rectangles around the area.
frameRect = NSInsetRect(frameRect, morph * 0.5, morph * 0.5);
NSBezierPath* border =
[NSBezierPath bezierPathWithRoundedRect:frameRect
xRadius:(morph * kBorderRadius)
yRadius:(morph * kBorderRadius)];
// Draw the rounded rectangle.
NSColor* toolbarColor =
themeProvider->GetNSColor(ThemeService::COLOR_TOOLBAR, true);
CGFloat alpha = morph * [toolbarColor alphaComponent];
[[toolbarColor colorWithAlphaComponent:alpha] set]; // Set with opacity.
[border fill];
// Fade in/out the background.
[context saveGraphicsState];
[border setClip];
CGContextRef cgContext = (CGContextRef)[context graphicsPort];
CGContextBeginTransparencyLayer(cgContext, NULL);
CGContextSetAlpha(cgContext, 1 - morph);
[context setPatternPhase:[[self window] themePatternPhase]];
[self drawBackground];
CGContextEndTransparencyLayer(cgContext);
[context restoreGraphicsState];
// Draw the border of the rounded rectangle.
NSColor* borderColor = themeProvider->GetNSColor(
ThemeService::COLOR_TOOLBAR_BUTTON_STROKE, true);
alpha = morph * [borderColor alphaComponent];
[[borderColor colorWithAlphaComponent:alpha] set]; // Set with opacity.
[border stroke];
// Fade in/out the divider.
// TODO(viettrungluu): It's not obvious that this divider lines up exactly
// with |BackgroundGradientView|'s (in fact, it probably doesn't).
NSColor* strokeColor = [self strokeColor];
alpha = (1 - morph) * [strokeColor alphaComponent];
[[strokeColor colorWithAlphaComponent:alpha] set];
NSBezierPath* divider = [NSBezierPath bezierPath];
NSPoint dividerStart =
NSMakePoint(morph * bookmarks::kNTPBookmarkBarPadding + morph * 0.5,
morph * bookmarks::kNTPBookmarkBarPadding + morph * 0.5);
CGFloat dividerWidth =
NSWidth(bounds) - 2 * morph * bookmarks::kNTPBookmarkBarPadding - 2 * 0.5;
[divider moveToPoint:dividerStart];
[divider relativeLineToPoint:NSMakePoint(dividerWidth, 0)];
[divider stroke];
// Restore the graphics context.
[context restoreGraphicsState];
}
@end // @implementation BookmarkBarToolbarView
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