src/chrome/browser/ui/views/profiles/new_avatar_button.cc

   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 #include "chrome/browser/ui/views/profiles/new_avatar_button.h"
   6
   7 #include "base/win/windows_version.h"
   8 #include "chrome/browser/browser_process.h"
   9 #include "chrome/browser/profiles/profile_manager.h"
  10 #include "chrome/browser/profiles/profiles_state.h"
  11 #include "chrome/browser/ui/browser.h"
  12 #include "grit/generated_resources.h"
  13 #include "grit/theme_resources.h"
  14 #include "ui/base/l10n/l10n_util.h"
  15 #include "ui/base/resource/resource_bundle.h"
  16 #include "ui/gfx/canvas.h"
  17 #include "ui/gfx/color_utils.h"
  18 #include "ui/gfx/font_list.h"
  19 #include "ui/gfx/text_elider.h"
  20 #include "ui/views/border.h"
  21 #include "ui/views/painter.h"
  22
  23 namespace {
  24
  25 // Text padding within the button border.
  26 const int kInset = 10;
  27
  28 scoped_ptr<views::Border> CreateBorder(const int normal_image_set[],
  29                                        const int hot_image_set[],
  30                                        const int pushed_image_set[]) {
  31   scoped_ptr<views::TextButtonDefaultBorder> border(
  32       new views::TextButtonDefaultBorder());
  33
  34   border->SetInsets(gfx::Insets(kInset, kInset, kInset, kInset));
  35   border->set_normal_painter(
  36       views::Painter::CreateImageGridPainter(normal_image_set));
  37   border->set_hot_painter(
  38       views::Painter::CreateImageGridPainter(hot_image_set));
  39   border->set_pushed_painter(
  40       views::Painter::CreateImageGridPainter(pushed_image_set));
  41
  42   return border.PassAs<views::Border>();
  43 }
  44
  45 base::string16 GetElidedText(const base::string16& original_text) {
  46   // Maximum characters the button can be before the text will get elided.
  47   const int kMaxCharactersToDisplay = 15;
  48
  49   const gfx::FontList font_list;
  50   return gfx::ElideText(
  51       original_text,
  52       font_list,
  53       font_list.GetExpectedTextWidth(kMaxCharactersToDisplay),
  54       gfx::ELIDE_AT_END);
  55 }
  56
  57 }  // namespace
  58
  59 NewAvatarButton::NewAvatarButton(
  60     views::ButtonListener* listener,
  61     const base::string16& profile_name,
  62     AvatarButtonStyle button_style,
  63     Browser* browser)
  64     : MenuButton(listener, GetElidedText(profile_name), NULL, true),
  65       browser_(browser) {
  66   set_animate_on_state_change(false);
  67
  68   ui::ResourceBundle* rb = &ui::ResourceBundle::GetSharedInstance();
  69
  70   bool is_win8 = false;
  71 #if defined(OS_WIN)
  72   is_win8 = base::win::GetVersion() >= base::win::VERSION_WIN8;
  73 #endif
  74
  75   if (button_style == THEMED_BUTTON) {
  76     const int kNormalImageSet[] = IMAGE_GRID(IDR_AVATAR_THEMED_BUTTON_NORMAL);
  77     const int kHotImageSet[] = IMAGE_GRID(IDR_AVATAR_THEMED_BUTTON_HOVER);
  78     const int kPushedImageSet[] = IMAGE_GRID(IDR_AVATAR_THEMED_BUTTON_PRESSED);
  79
  80     SetBorder(CreateBorder(kNormalImageSet, kHotImageSet, kPushedImageSet));
  81     set_menu_marker(
  82         rb->GetImageNamed(IDR_AVATAR_THEMED_BUTTON_DROPARROW).ToImageSkia());
  83   } else if (is_win8) {
  84     const int kNormalImageSet[] = IMAGE_GRID(IDR_AVATAR_METRO_BUTTON_NORMAL);
  85     const int kHotImageSet[] = IMAGE_GRID(IDR_AVATAR_METRO_BUTTON_HOVER);
  86     const int kPushedImageSet[] = IMAGE_GRID(IDR_AVATAR_METRO_BUTTON_PRESSED);
  87
  88     SetBorder(CreateBorder(kNormalImageSet, kHotImageSet, kPushedImageSet));
  89     set_menu_marker(
  90         rb->GetImageNamed(IDR_AVATAR_METRO_BUTTON_DROPARROW).ToImageSkia());
  91   } else {
  92     const int kNormalImageSet[] = IMAGE_GRID(IDR_AVATAR_GLASS_BUTTON_NORMAL);
  93     const int kHotImageSet[] = IMAGE_GRID(IDR_AVATAR_GLASS_BUTTON_HOVER);
  94     const int kPushedImageSet[] = IMAGE_GRID(IDR_AVATAR_GLASS_BUTTON_PRESSED);
  95
  96     SetBorder(CreateBorder(kNormalImageSet, kHotImageSet, kPushedImageSet));
  97     set_menu_marker(
  98         rb->GetImageNamed(IDR_AVATAR_GLASS_BUTTON_DROPARROW).ToImageSkia());
  99   }
 100
 101   g_browser_process->profile_manager()->GetProfileInfoCache().AddObserver(this);
 102   SchedulePaint();
 103 }
 104
 105 NewAvatarButton::~NewAvatarButton() {
 106   g_browser_process->profile_manager()->
 107       GetProfileInfoCache().RemoveObserver(this);
 108 }
 109
 110 void NewAvatarButton::OnPaint(gfx::Canvas* canvas) {
 111   // From TextButton::PaintButton, draw everything but the text.
 112   OnPaintBackground(canvas);
 113   OnPaintBorder(canvas);
 114   views::Painter::PaintFocusPainter(this, canvas, focus_painter());
 115
 116   gfx::Rect rect;
 117   // In RTL languages the marker gets drawn leftmost, so account for its offset.
 118   if (base::i18n::IsRTL())
 119     rect = gfx::Rect(-kInset, 0, size().width(), size().height());
 120   else
 121     rect = gfx::Rect(kInset, 0, size().width(), size().height());
 122
 123   canvas->DrawStringRectWithHalo(
 124       text(),
 125       gfx::FontList(),
 126       SK_ColorWHITE,
 127       SK_ColorDKGRAY,
 128       rect,
 129       gfx::Canvas::NO_SUBPIXEL_RENDERING);
 130
 131   // From MenuButton::PaintButton, paint the marker
 132   PaintMenuMarker(canvas);
 133 }
 134
 135 void NewAvatarButton::OnProfileAdded(const base::FilePath& profile_path) {
 136   UpdateAvatarButtonAndRelayoutParent();
 137 }
 138
 139 void NewAvatarButton::OnProfileWasRemoved(
 140       const base::FilePath& profile_path,
 141       const base::string16& profile_name) {
 142   UpdateAvatarButtonAndRelayoutParent();
 143 }
 144
 145 void NewAvatarButton::OnProfileNameChanged(
 146       const base::FilePath& profile_path,
 147       const base::string16& old_profile_name) {
 148   UpdateAvatarButtonAndRelayoutParent();
 149 }
 150
 151 void NewAvatarButton::UpdateAvatarButtonAndRelayoutParent() {
 152   // We want the button to resize if the new text is shorter.
 153   ClearMaxTextSize();
 154   SetText(GetElidedText(
 155       profiles::GetAvatarNameForProfile(browser_->profile())));
 156
 157   // Because the width of the button might have changed, the parent browser
 158   // frame needs to recalculate the button bounds and redraw it.
 159   parent()->Layout();
 160 }