chrome/browser/ui/views/avatar_menu_button.cc

   1 // Copyright (c) 2012 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 #include "chrome/browser/ui/views/avatar_menu_button.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/prefs/pref_service.h"
   9 #include "chrome/browser/browser_process.h"
  10 #include "chrome/browser/chrome_notification_types.h"
  11 #include "chrome/browser/profiles/avatar_menu.h"
  12 #include "chrome/browser/profiles/profile_info_util.h"
  13 #include "chrome/browser/profiles/profile_metrics.h"
  14 #include "chrome/browser/ui/browser.h"
  15 #include "chrome/browser/ui/views/avatar_menu_bubble_view.h"
  16 #include "chrome/browser/ui/views/frame/browser_view.h"
  17 #include "chrome/browser/ui/views/profile_chooser_view.h"
  18 #include "chrome/common/pref_names.h"
  19 #include "chrome/common/profile_management_switches.h"
  20 #include "content/public/browser/notification_service.h"
  21 #include "ui/gfx/canvas.h"
  22 #include "ui/views/widget/widget.h"
  23
  24 static inline int Round(double x) {
  25   return static_cast<int>(x + 0.5);
  26 }
  27
  28 // static
  29 const char AvatarMenuButton::kViewClassName[] = "AvatarMenuButton";
  30
  31 AvatarMenuButton::AvatarMenuButton(Browser* browser, bool disabled)
  32     : MenuButton(NULL, base::string16(), this, false),
  33       browser_(browser),
  34       disabled_(disabled),
  35       is_rectangle_(false),
  36       old_height_(0) {
  37   // In RTL mode, the avatar icon should be looking the opposite direction.
  38   EnableCanvasFlippingForRTLUI(true);
  39 }
  40
  41 AvatarMenuButton::~AvatarMenuButton() {
  42 }
  43
  44 const char* AvatarMenuButton::GetClassName() const {
  45   return kViewClassName;
  46 }
  47
  48 void AvatarMenuButton::OnPaint(gfx::Canvas* canvas) {
  49   if (!icon_.get())
  50     return;
  51
  52   if (old_height_ != height() || button_icon_.isNull()) {
  53     old_height_ = height();
  54     button_icon_ = *profiles::GetAvatarIconForTitleBar(
  55         *icon_, is_rectangle_, width(), height()).ToImageSkia();
  56   }
  57
  58   // Scale the image to fit the width of the button.
  59   int dst_width = std::min(button_icon_.width(), width());
  60   // Truncate rather than rounding, so that for odd widths we put the extra
  61   // pixel on the left.
  62   int dst_x = (width() - dst_width) / 2;
  63
  64   // Scale the height and maintain aspect ratio. This means that the
  65   // icon may not fit in the view. That's ok, we just vertically center it.
  66   float scale =
  67       static_cast<float>(dst_width) / static_cast<float>(button_icon_.width());
  68   // Round here so that we minimize the aspect ratio drift.
  69   int dst_height = Round(button_icon_.height() * scale);
  70   // Round rather than truncating, so that for odd heights we select an extra
  71   // pixel below the image center rather than above.  This is because the
  72   // incognito image has shadows at the top that make the apparent center below
  73   // the real center.
  74   int dst_y = Round((height() - dst_height) / 2.0);
  75   canvas->DrawImageInt(button_icon_, 0, 0, button_icon_.width(),
  76       button_icon_.height(), dst_x, dst_y, dst_width, dst_height, false);
  77 }
  78
  79 bool AvatarMenuButton::HitTestRect(const gfx::Rect& rect) const {
  80   if (disabled_)
  81     return false;
  82   return views::MenuButton::HitTestRect(rect);
  83 }
  84
  85 void AvatarMenuButton::SetAvatarIcon(const gfx::Image& icon,
  86                                      bool is_rectangle) {
  87   icon_.reset(new gfx::Image(icon));
  88   button_icon_ = gfx::ImageSkia();
  89   is_rectangle_ = is_rectangle;
  90   SchedulePaint();
  91 }
  92
  93 // views::MenuButtonListener implementation
  94 void AvatarMenuButton::OnMenuButtonClicked(views::View* source,
  95                                            const gfx::Point& point) {
  96   if (disabled_)
  97     return;
  98
  99   ShowAvatarBubble();
 100 }
 101
 102 void AvatarMenuButton::ShowAvatarBubble() {
 103   gfx::Point origin;
 104   views::View::ConvertPointToScreen(this, &origin);
 105   gfx::Rect bounds(origin, size());
 106   views::BubbleBorder::Arrow arrow = button_on_right_ ?
 107       views::BubbleBorder::TOP_RIGHT : views::BubbleBorder::TOP_LEFT;
 108   if (switches::IsNewProfileManagement()) {
 109     ProfileChooserView::ShowBubble(
 110         this, arrow, views::BubbleBorder::ALIGN_ARROW_TO_MID_ANCHOR, bounds,
 111         browser_);
 112   } else {
 113     AvatarMenuBubbleView::ShowBubble(
 114         this, arrow, views::BubbleBorder::ALIGN_ARROW_TO_MID_ANCHOR, bounds,
 115         browser_);
 116   }
 117
 118   ProfileMetrics::LogProfileOpenMethod(ProfileMetrics::ICON_AVATAR_BUBBLE);
 119 }