chrome/browser/ui/cocoa/profiles/avatar_icon_controller.mm

   1 // Copyright 2014 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/profiles/avatar_icon_controller.h"
   6
   7 #include "base/strings/sys_string_conversions.h"
   8 #include "chrome/browser/browser_process.h"
   9 #include "chrome/browser/profiles/profile.h"
  10 #include "chrome/browser/profiles/profile_avatar_icon_util.h"
  11 #include "chrome/browser/profiles/profile_info_cache.h"
  12 #include "chrome/browser/profiles/profile_manager.h"
  13 #include "chrome/browser/ui/browser.h"
  14 #include "chrome/browser/ui/browser_window.h"
  15 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
  16 #import "chrome/browser/ui/cocoa/nsview_additions.h"
  17 #import "chrome/browser/ui/cocoa/profiles/avatar_label_button.h"
  18 #include "grit/generated_resources.h"
  19 #include "grit/theme_resources.h"
  20 #include "ui/base/l10n/l10n_util_mac.h"
  21 #include "ui/base/resource/resource_bundle.h"
  22 #include "ui/gfx/image/image.h"
  23 #include "ui/gfx/scoped_ns_graphics_context_save_gstate_mac.h"
  24
  25 namespace {
  26
  27 // Space between the avatar label and the left edge of the container containing
  28 // the label and the icon.
  29 const CGFloat kAvatarSpacing = 4;
  30
  31 // Space between the bottom of the avatar icon and the bottom of the avatar
  32 // label.
  33 const CGFloat kAvatarLabelBottomSpacing = 3;
  34
  35 // Space between the right edge of the avatar label and the right edge of the
  36 // avatar icon.
  37 const CGFloat kAvatarLabelRightSpacing = 2;
  38
  39 }  // namespace
  40
  41 @interface AvatarIconController (Private)
  42 - (void)setButtonEnabled:(BOOL)flag;
  43 - (NSImage*)compositeImageWithShadow:(NSImage*)image;
  44 - (void)updateAvatarButtonAndLayoutParent:(BOOL)layoutParent;
  45 - (void)addOrRemoveButtonIfNecessary;
  46 @end
  47
  48 // Declare a 10.7+ private API.
  49 // NSThemeFrame < NSTitledFrame < NSFrameView < NSView.
  50 @interface NSView (NSThemeFrame)
  51 - (void)_tileTitlebarAndRedisplay:(BOOL)redisplay;
  52 @end
  53
  54 @implementation AvatarIconController
  55
  56 - (id)initWithBrowser:(Browser*)browser {
  57   if ((self = [super initWithBrowser:browser])) {
  58     browser_ = browser;
  59
  60     base::scoped_nsobject<NSView> container(
  61         [[NSView alloc] initWithFrame:NSMakeRect(
  62             0, 0, profiles::kAvatarIconWidth, profiles::kAvatarIconHeight)]);
  63     [container cr_setWantsLayer:YES];
  64     [self setView:container];
  65
  66     button_.reset([[NSButton alloc] initWithFrame:NSMakeRect(
  67         0, 0, profiles::kAvatarIconWidth, profiles::kAvatarIconHeight)]);
  68     NSButtonCell* cell = [button_ cell];
  69     [button_ setButtonType:NSMomentaryLightButton];
  70
  71     [button_ setImagePosition:NSImageOnly];
  72     [cell setImageScaling:NSImageScaleProportionallyDown];
  73     [cell setImagePosition:NSImageBelow];
  74
  75     // AppKit sets a title for some reason when using |-setImagePosition:|.
  76     [button_ setTitle:nil];
  77
  78     [cell setImageDimsWhenDisabled:NO];
  79     [cell setHighlightsBy:NSContentsCellMask];
  80     [cell setShowsStateBy:NSContentsCellMask];
  81
  82     [button_ setBordered:NO];
  83     [button_ setTarget:self];
  84     [button_ setAction:@selector(buttonClicked:)];
  85
  86     [cell accessibilitySetOverrideValue:NSAccessibilityButtonRole
  87                            forAttribute:NSAccessibilityRoleAttribute];
  88     [cell accessibilitySetOverrideValue:
  89         NSAccessibilityRoleDescription(NSAccessibilityButtonRole, nil)
  90           forAttribute:NSAccessibilityRoleDescriptionAttribute];
  91     [cell accessibilitySetOverrideValue:
  92         l10n_util::GetNSString(IDS_PROFILES_BUBBLE_ACCESSIBLE_NAME)
  93                            forAttribute:NSAccessibilityTitleAttribute];
  94     [cell accessibilitySetOverrideValue:
  95         l10n_util::GetNSString(IDS_PROFILES_BUBBLE_ACCESSIBLE_DESCRIPTION)
  96                            forAttribute:NSAccessibilityHelpAttribute];
  97     [cell accessibilitySetOverrideValue:
  98         l10n_util::GetNSString(IDS_PROFILES_BUBBLE_ACCESSIBLE_DESCRIPTION)
  99                            forAttribute:NSAccessibilityDescriptionAttribute];
 100
 101     Profile* profile = browser_->profile();
 102
 103     if (profile->IsOffTheRecord() || profile->IsGuestSession()) {
 104       const int icon_id = profile->IsGuestSession() ?
 105           profiles::GetPlaceholderAvatarIconResourceID() : IDR_OTR_ICON;
 106       NSImage* icon = ResourceBundle::GetSharedInstance().GetNativeImageNamed(
 107           icon_id).ToNSImage();
 108       [self setImage:[self compositeImageWithShadow:icon]];
 109       [self setButtonEnabled:profile->IsGuestSession()];
 110    } else {
 111       [self setButtonEnabled:YES];
 112       [self updateAvatarButtonAndLayoutParent:NO];
 113
 114       // Managed users cannot enter incognito mode, so we only need to check
 115       // it in this code path.
 116       if (profile->IsManaged()) {
 117         // Initialize the avatar label button.
 118         CGFloat extraWidth =
 119             profiles::kAvatarIconWidth + kAvatarLabelRightSpacing;
 120         NSRect frame = NSMakeRect(
 121             kAvatarSpacing, kAvatarLabelBottomSpacing, extraWidth, 0);
 122         labelButton_.reset([[AvatarLabelButton alloc] initWithFrame:frame]);
 123         [labelButton_ setTarget:self];
 124         [labelButton_ setAction:@selector(buttonClicked:)];
 125         [[self view] addSubview:labelButton_];
 126
 127         // Resize the container and reposition the avatar button.
 128         NSSize textSize = [[labelButton_ cell] labelTextSize];
 129         [container setFrameSize:
 130             NSMakeSize([labelButton_ frame].size.width + kAvatarSpacing,
 131                        profiles::kAvatarIconHeight)];
 132         [button_
 133             setFrameOrigin:NSMakePoint(kAvatarSpacing + textSize.width, 0)];
 134       }
 135     }
 136     [[self view] addSubview:button_];
 137   }
 138   return self;
 139 }
 140
 141 - (NSButton*)labelButtonView {
 142   return labelButton_.get();
 143 }
 144
 145 - (void)setImage:(NSImage*)image {
 146   [button_ setImage:image];
 147 }
 148
 149 - (void)setButtonEnabled:(BOOL)flag {
 150   [button_ setEnabled:flag];
 151 }
 152
 153 // This will take in an original image and redraw it with a shadow.
 154 - (NSImage*)compositeImageWithShadow:(NSImage*)image {
 155   gfx::ScopedNSGraphicsContextSaveGState scopedGState;
 156
 157   base::scoped_nsobject<NSImage> destination(
 158       [[NSImage alloc] initWithSize:[image size]]);
 159
 160   NSRect destRect = NSZeroRect;
 161   destRect.size = [destination size];
 162
 163   [destination lockFocus];
 164
 165   base::scoped_nsobject<NSShadow> shadow([[NSShadow alloc] init]);
 166   [shadow.get() setShadowColor:[NSColor colorWithCalibratedWhite:0.0
 167                                                            alpha:0.75]];
 168   [shadow.get() setShadowOffset:NSZeroSize];
 169   [shadow.get() setShadowBlurRadius:3.0];
 170   [shadow.get() set];
 171
 172   [image drawInRect:destRect
 173            fromRect:NSZeroRect
 174           operation:NSCompositeSourceOver
 175            fraction:1.0
 176      respectFlipped:YES
 177               hints:nil];
 178
 179   [destination unlockFocus];
 180
 181   return destination.autorelease();
 182 }
 183
 184 // Updates the avatar information from the profile cache.
 185 - (void)updateAvatarButtonAndLayoutParent:(BOOL)layoutParent {
 186   // No updates are needed for an incognito or guest window, as the avatar
 187   // is always fixed.
 188   Profile* profile = browser_->profile();
 189   if (profile->IsOffTheRecord() || profile->IsGuestSession())
 190     return;
 191
 192   ProfileInfoCache& cache =
 193       g_browser_process->profile_manager()->GetProfileInfoCache();
 194   size_t index =
 195       cache.GetIndexOfProfileWithPath(browser_->profile()->GetPath());
 196   if (index == std::string::npos)
 197     return;
 198
 199   BOOL is_gaia_picture =
 200       cache.IsUsingGAIAPictureOfProfileAtIndex(index) &&
 201       cache.GetGAIAPictureOfProfileAtIndex(index);
 202   gfx::Image icon = profiles::GetAvatarIconForTitleBar(
 203       cache.GetAvatarIconOfProfileAtIndex(index), is_gaia_picture,
 204       profiles::kAvatarIconWidth, profiles::kAvatarIconHeight);
 205   [self setImage:icon.ToNSImage()];
 206
 207   const base::string16& name = cache.GetNameOfProfileAtIndex(index);
 208   NSString* nsName = base::SysUTF16ToNSString(name);
 209   [button_ setToolTip:nsName];
 210   [[button_ cell]
 211       accessibilitySetOverrideValue:nsName
 212                        forAttribute:NSAccessibilityValueAttribute];
 213   if (layoutParent)
 214     [self addOrRemoveButtonIfNecessary];
 215 }
 216
 217 // If the second-to-last profile was removed or a second profile was added,
 218 // show or hide the avatar button from the window frame.
 219 - (void)addOrRemoveButtonIfNecessary {
 220   if (browser_->profile()->IsOffTheRecord())
 221     return;
 222
 223   NSWindowController* wc =
 224       [browser_->window()->GetNativeWindow() windowController];
 225   if (![wc isKindOfClass:[BrowserWindowController class]])
 226     return;
 227
 228   size_t count = g_browser_process->profile_manager()->GetNumberOfProfiles();
 229   [self.view setHidden:count < 2];
 230
 231   [static_cast<BrowserWindowController*>(wc) layoutSubviews];
 232
 233   // If the avatar is being added or removed, then the Lion fullscreen button
 234   // needs to be adjusted. Since the fullscreen button is positioned by
 235   // FramedBrowserWindow using private APIs, the easiest way to update the
 236   // position of the button is through this private API. Resizing the window
 237   // also works, but invoking |-display| does not.
 238   NSView* themeFrame = [[[wc window] contentView] superview];
 239   if ([themeFrame respondsToSelector:@selector(_tileTitlebarAndRedisplay:)])
 240     [themeFrame _tileTitlebarAndRedisplay:YES];
 241 }
 242
 243 @end