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      1 // Copyright (c) 2011 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 "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_toolbar_view.h"
      6 
      7 #include "chrome/browser/search/search.h"
      8 #include "chrome/browser/themes/theme_properties.h"
      9 #include "chrome/browser/themes/theme_service.h"
     10 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_constants.h"
     11 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h"
     12 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
     13 #import "chrome/browser/ui/cocoa/nsview_additions.h"
     14 #import "chrome/browser/ui/cocoa/themed_window.h"
     15 #include "chrome/browser/ui/ntp_background_util.h"
     16 #include "chrome/browser/ui/search/search_ui.h"
     17 #include "grit/theme_resources.h"
     18 #include "skia/ext/skia_utils_mac.h"
     19 #import "ui/base/cocoa/nsgraphics_context_additions.h"
     20 #include "ui/base/theme_provider.h"
     21 #include "ui/gfx/canvas_skia_paint.h"
     22 #include "ui/gfx/rect.h"
     23 #include "ui/gfx/scoped_ns_graphics_context_save_gstate_mac.h"
     24 
     25 @interface BookmarkBarToolbarView (Private)
     26 - (void)drawAsDetachedBubble;
     27 @end
     28 
     29 @implementation BookmarkBarToolbarView
     30 
     31 - (BOOL)isOpaque {
     32   return [controller_ isInState:BookmarkBar::DETACHED];
     33 }
     34 
     35 - (void)resetCursorRects {
     36   NSCursor *arrow = [NSCursor arrowCursor];
     37   [self addCursorRect:[self visibleRect] cursor:arrow];
     38   [arrow setOnMouseEntered:YES];
     39 }
     40 
     41 - (void)drawRect:(NSRect)rect {
     42   if ([controller_ isInState:BookmarkBar::DETACHED] ||
     43       [controller_ isAnimatingToState:BookmarkBar::DETACHED] ||
     44       [controller_ isAnimatingFromState:BookmarkBar::DETACHED]) {
     45     [self drawAsDetachedBubble];
     46   } else {
     47     NSPoint position = [[self window]
     48         themeImagePositionForAlignment:THEME_IMAGE_ALIGN_WITH_TAB_STRIP];
     49     [[NSGraphicsContext currentContext]
     50         cr_setPatternPhase:position
     51                    forView:[self cr_viewBeingDrawnTo]];
     52     [self drawBackgroundWithOpaque:YES];
     53   }
     54 }
     55 
     56 - (void)drawAsDetachedBubble {
     57   CGFloat morph = [controller_ detachedMorphProgress];
     58   NSRect bounds = [self bounds];
     59   ThemeService* themeService = [controller_ themeService];
     60   if (!themeService)
     61     return;
     62 
     63   [[NSColor whiteColor] set];
     64   NSRectFill([self bounds]);
     65 
     66   // Overlay with a lighter background color.
     67   NSColor* toolbarColor = gfx::SkColorToCalibratedNSColor(
     68         chrome::GetDetachedBookmarkBarBackgroundColor(themeService));
     69   CGFloat alpha = morph * [toolbarColor alphaComponent];
     70   [[toolbarColor colorWithAlphaComponent:alpha] set];
     71   NSRectFillUsingOperation(bounds, NSCompositeSourceOver);
     72 
     73   // Fade in/out the background.
     74   {
     75     gfx::ScopedNSGraphicsContextSaveGState bgScopedState;
     76     NSGraphicsContext* context = [NSGraphicsContext currentContext];
     77     CGContextRef cgContext = static_cast<CGContextRef>([context graphicsPort]);
     78     CGContextSetAlpha(cgContext, 1 - morph);
     79     CGContextBeginTransparencyLayer(cgContext, NULL);
     80     NSPoint position = [[self window]
     81         themeImagePositionForAlignment:THEME_IMAGE_ALIGN_WITH_TAB_STRIP];
     82     [context cr_setPatternPhase:position forView:[self cr_viewBeingDrawnTo]];
     83     [self drawBackgroundWithOpaque:YES];
     84     CGContextEndTransparencyLayer(cgContext);
     85   }
     86 
     87   // Bottom stroke.
     88   NSColor* strokeColor = gfx::SkColorToCalibratedNSColor(
     89         chrome::GetDetachedBookmarkBarSeparatorColor(themeService));
     90   strokeColor = [[self strokeColor] blendedColorWithFraction:morph
     91                                                      ofColor:strokeColor];
     92   strokeColor = [strokeColor colorWithAlphaComponent:0.5];
     93   [strokeColor set];
     94   NSRect strokeRect = bounds;
     95   strokeRect.size.height = [self cr_lineWidth];
     96   NSRectFillUsingOperation(strokeRect, NSCompositeSourceOver);
     97 }
     98 
     99 @end  // @implementation BookmarkBarToolbarView
    100