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 "ash/shelf/alternate_app_list_button.h" 6 7 #include "ash/ash_constants.h" 8 #include "ash/ash_switches.h" 9 #include "ash/shelf/shelf_button.h" 10 #include "ash/shelf/shelf_button_host.h" 11 #include "ash/shelf/shelf_item_types.h" 12 #include "ash/shelf/shelf_layout_manager.h" 13 #include "ash/shelf/shelf_widget.h" 14 #include "ash/shell.h" 15 #include "grit/ash_resources.h" 16 #include "grit/ash_strings.h" 17 #include "ui/accessibility/ax_view_state.h" 18 #include "ui/base/l10n/l10n_util.h" 19 #include "ui/base/resource/resource_bundle.h" 20 #include "ui/compositor/layer.h" 21 #include "ui/compositor/layer_animation_element.h" 22 #include "ui/compositor/layer_animation_sequence.h" 23 #include "ui/compositor/scoped_layer_animation_settings.h" 24 #include "ui/gfx/canvas.h" 25 #include "ui/gfx/image/image_skia_operations.h" 26 #include "ui/views/controls/button/image_button.h" 27 #include "ui/views/painter.h" 28 29 namespace ash { 30 // static 31 const int AlternateAppListButton::kImageBoundsSize = 7; 32 33 34 AlternateAppListButton::AlternateAppListButton(views::ButtonListener* listener, 35 ShelfButtonHost* host, 36 ShelfWidget* shelf_widget) 37 : views::ImageButton(listener), 38 host_(host), 39 shelf_widget_(shelf_widget) { 40 SetAccessibleName(l10n_util::GetStringUTF16(IDS_ASH_SHELF_APP_LIST_TITLE)); 41 SetSize(gfx::Size(ShelfLayoutManager::kShelfSize, 42 ShelfLayoutManager::kShelfSize)); 43 SetFocusPainter(views::Painter::CreateSolidFocusPainter( 44 kFocusBorderColor, gfx::Insets(1, 1, 1, 1))); 45 } 46 47 AlternateAppListButton::~AlternateAppListButton() { 48 } 49 50 bool AlternateAppListButton::OnMousePressed(const ui::MouseEvent& event) { 51 ImageButton::OnMousePressed(event); 52 host_->PointerPressedOnButton(this, ShelfButtonHost::MOUSE, event); 53 return true; 54 } 55 56 void AlternateAppListButton::OnMouseReleased(const ui::MouseEvent& event) { 57 ImageButton::OnMouseReleased(event); 58 host_->PointerReleasedOnButton(this, ShelfButtonHost::MOUSE, false); 59 } 60 61 void AlternateAppListButton::OnMouseCaptureLost() { 62 host_->PointerReleasedOnButton(this, ShelfButtonHost::MOUSE, true); 63 ImageButton::OnMouseCaptureLost(); 64 } 65 66 bool AlternateAppListButton::OnMouseDragged(const ui::MouseEvent& event) { 67 ImageButton::OnMouseDragged(event); 68 host_->PointerDraggedOnButton(this, ShelfButtonHost::MOUSE, event); 69 return true; 70 } 71 72 void AlternateAppListButton::OnMouseMoved(const ui::MouseEvent& event) { 73 ImageButton::OnMouseMoved(event); 74 host_->MouseMovedOverButton(this); 75 } 76 77 void AlternateAppListButton::OnMouseEntered(const ui::MouseEvent& event) { 78 ImageButton::OnMouseEntered(event); 79 host_->MouseEnteredButton(this); 80 } 81 82 void AlternateAppListButton::OnMouseExited(const ui::MouseEvent& event) { 83 ImageButton::OnMouseExited(event); 84 host_->MouseExitedButton(this); 85 } 86 87 void AlternateAppListButton::OnGestureEvent(ui::GestureEvent* event) { 88 switch (event->type()) { 89 case ui::ET_GESTURE_SCROLL_BEGIN: 90 host_->PointerPressedOnButton(this, ShelfButtonHost::TOUCH, *event); 91 event->SetHandled(); 92 return; 93 case ui::ET_GESTURE_SCROLL_UPDATE: 94 host_->PointerDraggedOnButton(this, ShelfButtonHost::TOUCH, *event); 95 event->SetHandled(); 96 return; 97 case ui::ET_GESTURE_SCROLL_END: 98 case ui::ET_SCROLL_FLING_START: 99 host_->PointerReleasedOnButton(this, ShelfButtonHost::TOUCH, false); 100 event->SetHandled(); 101 return; 102 default: 103 ImageButton::OnGestureEvent(event); 104 return; 105 } 106 } 107 108 void AlternateAppListButton::OnPaint(gfx::Canvas* canvas) { 109 // Call the base class first to paint any background/borders. 110 View::OnPaint(canvas); 111 112 int background_image_id = 0; 113 if (Shell::GetInstance()->GetAppListTargetVisibility()) { 114 background_image_id = IDR_AURA_NOTIFICATION_BACKGROUND_PRESSED; 115 } else { 116 if (shelf_widget_->GetDimsShelf()) 117 background_image_id = IDR_AURA_NOTIFICATION_BACKGROUND_ON_BLACK; 118 else 119 background_image_id = IDR_AURA_NOTIFICATION_BACKGROUND_NORMAL; 120 } 121 ResourceBundle& rb = ResourceBundle::GetSharedInstance(); 122 const gfx::ImageSkia* background_image = 123 rb.GetImageNamed(background_image_id).ToImageSkia(); 124 const gfx::ImageSkia* forground_image = 125 rb.GetImageNamed(IDR_ASH_SHELF_ICON_APPLIST_ALTERNATE).ToImageSkia(); 126 127 gfx::Rect contents_bounds = GetContentsBounds(); 128 gfx::Rect background_bounds, forground_bounds; 129 130 ShelfAlignment alignment = shelf_widget_->GetAlignment(); 131 background_bounds.set_size(background_image->size()); 132 if (alignment == SHELF_ALIGNMENT_LEFT) { 133 background_bounds.set_x(contents_bounds.width() - 134 ShelfLayoutManager::kShelfItemInset - background_image->width()); 135 background_bounds.set_y(contents_bounds.y() + 136 (contents_bounds.height() - background_image->height()) / 2); 137 } else if(alignment == SHELF_ALIGNMENT_RIGHT) { 138 background_bounds.set_x(ShelfLayoutManager::kShelfItemInset); 139 background_bounds.set_y(contents_bounds.y() + 140 (contents_bounds.height() - background_image->height()) / 2); 141 } else { 142 background_bounds.set_y(ShelfLayoutManager::kShelfItemInset); 143 background_bounds.set_x(contents_bounds.x() + 144 (contents_bounds.width() - background_image->width()) / 2); 145 } 146 147 forground_bounds.set_size(forground_image->size()); 148 forground_bounds.set_x(background_bounds.x() + 149 std::max(0, 150 (background_bounds.width() - forground_bounds.width()) / 2)); 151 forground_bounds.set_y(background_bounds.y() + 152 std::max(0, 153 (background_bounds.height() - forground_bounds.height()) / 2)); 154 155 canvas->DrawImageInt(*background_image, 156 background_bounds.x(), 157 background_bounds.y()); 158 canvas->DrawImageInt(*forground_image, 159 forground_bounds.x(), 160 forground_bounds.y()); 161 162 views::Painter::PaintFocusPainter(this, canvas, focus_painter()); 163 } 164 165 void AlternateAppListButton::GetAccessibleState( 166 ui::AXViewState* state) { 167 state->role = ui::AX_ROLE_BUTTON; 168 state->name = host_->GetAccessibleName(this); 169 } 170 171 } // namespace ash 172