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      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/profiles/profiles_state.h"
     15 #include "chrome/browser/ui/browser.h"
     16 #include "chrome/browser/ui/views/avatar_menu_bubble_view.h"
     17 #include "chrome/browser/ui/views/frame/browser_view.h"
     18 #include "chrome/browser/ui/views/profile_chooser_view.h"
     19 #include "chrome/common/pref_names.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 (profiles::IsNewProfileManagementEnabled()) {
    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 }
    120