chrome/browser/ui/cocoa/bookmarks/bookmark_bar_toolbar_view.mm

   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