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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/extensions/shell_window_frame_view.h" | |
| 6 | |
| 7 #include "base/strings/utf_string_conversions.h" | |
| 8 #include "chrome/browser/ui/views/apps/native_app_window_views.h" | |
| 9 #include "extensions/common/draggable_region.h" | |
| 10 #include "grit/theme_resources.h" | |
| 11 #include "grit/ui_strings.h" // Accessibility names | |
| 12 #include "third_party/skia/include/core/SkPaint.h" | |
| 13 #include "ui/base/hit_test.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/image/image.h" | |
| 18 #include "ui/gfx/path.h" | |
| 19 #include "ui/views/controls/button/image_button.h" | |
| 20 #include "ui/views/layout/grid_layout.h" | |
| 21 #include "ui/views/views_delegate.h" | |
| 22 #include "ui/views/widget/widget.h" | |
| 23 | |
| 24 #if defined(OS_WIN) && !defined(USE_AURA) | |
| 25 #include "chrome/browser/shell_integration.h" | |
| 26 #include "chrome/browser/web_applications/web_app.h" | |
| 27 #include "ui/base/win/shell.h" | |
| 28 #endif | |
| 29 | |
| 30 #if defined(USE_ASH) | |
| 31 #include "ash/ash_constants.h" | |
| 32 #include "chrome/browser/ui/ash/ash_util.h" | |
| 33 #include "ui/aura/env.h" | |
| 34 #endif | |
| 35 | |
| 36 #if defined(USE_AURA) | |
| 37 #include "ui/aura/window.h" | |
| 38 #endif | |
| 39 | |
| 40 namespace { | |
| 41 const int kResizeInsideBoundsSize = 5; | |
| 42 const int kResizeAreaCornerSize = 16; | |
| 43 | |
| 44 // Height of the chrome-style caption, in pixels. | |
| 45 const int kCaptionHeight = 25; | |
| 46 } // namespace | |
| 47 | |
| 48 | |
| 49 const char ShellWindowFrameView::kViewClassName[] = | |
| 50 "browser/ui/views/extensions/ShellWindowFrameView"; | |
| 51 | |
| 52 ShellWindowFrameView::ShellWindowFrameView(NativeAppWindowViews* window) | |
| 53 : window_(window), | |
| 54 frame_(NULL), | |
| 55 close_button_(NULL) { | |
| 56 } | |
| 57 | |
| 58 ShellWindowFrameView::~ShellWindowFrameView() { | |
| 59 } | |
| 60 | |
| 61 void ShellWindowFrameView::Init(views::Widget* frame) { | |
| 62 frame_ = frame; | |
| 63 | |
| 64 if (!window_->frameless()) { | |
| 65 ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance(); | |
| 66 close_button_ = new views::ImageButton(this); | |
| 67 close_button_->SetImage(views::CustomButton::STATE_NORMAL, | |
| 68 rb.GetNativeImageNamed(IDR_APP_WINDOW_CLOSE).ToImageSkia()); | |
| 69 close_button_->SetImage(views::CustomButton::STATE_HOVERED, | |
| 70 rb.GetNativeImageNamed(IDR_APP_WINDOW_CLOSE_H).ToImageSkia()); | |
| 71 close_button_->SetImage(views::CustomButton::STATE_PRESSED, | |
| 72 rb.GetNativeImageNamed(IDR_APP_WINDOW_CLOSE_P).ToImageSkia()); | |
| 73 close_button_->SetAccessibleName( | |
| 74 l10n_util::GetStringUTF16(IDS_APP_ACCNAME_CLOSE)); | |
| 75 AddChildView(close_button_); | |
| 76 maximize_button_ = new views::ImageButton(this); | |
| 77 maximize_button_->SetImage(views::CustomButton::STATE_NORMAL, | |
| 78 rb.GetNativeImageNamed(IDR_APP_WINDOW_MAXIMIZE).ToImageSkia()); | |
| 79 maximize_button_->SetImage(views::CustomButton::STATE_HOVERED, | |
| 80 rb.GetNativeImageNamed(IDR_APP_WINDOW_MAXIMIZE_H).ToImageSkia()); | |
| 81 maximize_button_->SetImage(views::CustomButton::STATE_PRESSED, | |
| 82 rb.GetNativeImageNamed(IDR_APP_WINDOW_MAXIMIZE_P).ToImageSkia()); | |
| 83 maximize_button_->SetImage(views::CustomButton::STATE_DISABLED, | |
| 84 rb.GetNativeImageNamed(IDR_APP_WINDOW_MAXIMIZE_D).ToImageSkia()); | |
| 85 maximize_button_->SetAccessibleName( | |
| 86 l10n_util::GetStringUTF16(IDS_APP_ACCNAME_MAXIMIZE)); | |
| 87 AddChildView(maximize_button_); | |
| 88 restore_button_ = new views::ImageButton(this); | |
| 89 restore_button_->SetImage(views::CustomButton::STATE_NORMAL, | |
| 90 rb.GetNativeImageNamed(IDR_APP_WINDOW_RESTORE).ToImageSkia()); | |
| 91 restore_button_->SetImage(views::CustomButton::STATE_HOVERED, | |
| 92 rb.GetNativeImageNamed(IDR_APP_WINDOW_RESTORE_H).ToImageSkia()); | |
| 93 restore_button_->SetImage(views::CustomButton::STATE_PRESSED, | |
| 94 rb.GetNativeImageNamed(IDR_APP_WINDOW_RESTORE_P).ToImageSkia()); | |
| 95 restore_button_->SetAccessibleName( | |
| 96 l10n_util::GetStringUTF16(IDS_APP_ACCNAME_RESTORE)); | |
| 97 AddChildView(restore_button_); | |
| 98 minimize_button_ = new views::ImageButton(this); | |
| 99 minimize_button_->SetImage(views::CustomButton::STATE_NORMAL, | |
| 100 rb.GetNativeImageNamed(IDR_APP_WINDOW_MINIMIZE).ToImageSkia()); | |
| 101 minimize_button_->SetImage(views::CustomButton::STATE_HOVERED, | |
| 102 rb.GetNativeImageNamed(IDR_APP_WINDOW_MINIMIZE_H).ToImageSkia()); | |
| 103 minimize_button_->SetImage(views::CustomButton::STATE_PRESSED, | |
| 104 rb.GetNativeImageNamed(IDR_APP_WINDOW_MINIMIZE_P).ToImageSkia()); | |
| 105 minimize_button_->SetAccessibleName( | |
| 106 l10n_util::GetStringUTF16(IDS_APP_ACCNAME_MINIMIZE)); | |
| 107 AddChildView(minimize_button_); | |
| 108 } | |
| 109 | |
| 110 #if defined(USE_AURA) | |
| 111 int resize_inside_bounds_size = kResizeInsideBoundsSize; | |
| 112 aura::Window* window = frame->GetNativeWindow(); | |
| 113 #if defined(USE_ASH) | |
| 114 if (chrome::IsNativeWindowInAsh(window)) { | |
| 115 gfx::Insets mouse_insets = gfx::Insets(-ash::kResizeOutsideBoundsSize, | |
| 116 -ash::kResizeOutsideBoundsSize, | |
| 117 -ash::kResizeOutsideBoundsSize, | |
| 118 -ash::kResizeOutsideBoundsSize); | |
| 119 gfx::Insets touch_insets = mouse_insets.Scale( | |
| 120 ash::kResizeOutsideBoundsScaleForTouch); | |
| 121 // Ensure we get resize cursors for a few pixels outside our bounds. | |
| 122 window->SetHitTestBoundsOverrideOuter(mouse_insets, touch_insets); | |
| 123 | |
| 124 // If the window is in ash, the inside area used for resizing will be | |
| 125 // smaller due to the fact that outside area is also used for resizing. | |
| 126 resize_inside_bounds_size = ash::kResizeInsideBoundsSize; | |
| 127 } | |
| 128 #endif | |
| 129 // Ensure we get resize cursors just inside our bounds as well. | |
| 130 // TODO(jeremya): do we need to update these when in fullscreen/maximized? | |
| 131 window->set_hit_test_bounds_override_inner( | |
| 132 gfx::Insets(resize_inside_bounds_size, resize_inside_bounds_size, | |
| 133 resize_inside_bounds_size, resize_inside_bounds_size)); | |
| 134 #endif | |
| 135 } | |
| 136 | |
| 137 // views::NonClientFrameView implementation. | |
| 138 | |
| 139 gfx::Rect ShellWindowFrameView::GetBoundsForClientView() const { | |
| 140 if (window_->frameless() || frame_->IsFullscreen()) | |
| 141 return bounds(); | |
| 142 return gfx::Rect(0, kCaptionHeight, width(), | |
| 143 std::max(0, height() - kCaptionHeight)); | |
| 144 } | |
| 145 | |
| 146 gfx::Rect ShellWindowFrameView::GetWindowBoundsForClientBounds( | |
| 147 const gfx::Rect& client_bounds) const { | |
| 148 if (window_->frameless()) { | |
| 149 gfx::Rect window_bounds = client_bounds; | |
| 150 // Enforce minimum size (1, 1) in case that client_bounds is passed with | |
| 151 // empty size. This could occur when the frameless window is being | |
| 152 // initialized. | |
| 153 if (window_bounds.IsEmpty()) { | |
| 154 window_bounds.set_width(1); | |
| 155 window_bounds.set_height(1); | |
| 156 } | |
| 157 return window_bounds; | |
| 158 } | |
| 159 | |
| 160 int closeButtonOffsetX = | |
| 161 (kCaptionHeight - close_button_->height()) / 2; | |
| 162 int header_width = close_button_->width() + closeButtonOffsetX * 2; | |
| 163 return gfx::Rect(client_bounds.x(), | |
| 164 std::max(0, client_bounds.y() - kCaptionHeight), | |
| 165 std::max(header_width, client_bounds.width()), | |
| 166 client_bounds.height() + kCaptionHeight); | |
| 167 } | |
| 168 | |
| 169 int ShellWindowFrameView::NonClientHitTest(const gfx::Point& point) { | |
| 170 if (frame_->IsFullscreen()) | |
| 171 return HTCLIENT; | |
| 172 | |
| 173 int resize_inside_bounds_size = kResizeInsideBoundsSize; | |
| 174 int resize_area_corner_size = kResizeAreaCornerSize; | |
| 175 | |
| 176 #if defined(USE_ASH) | |
| 177 aura::Window* window = frame_->GetNativeWindow(); | |
| 178 if (chrome::IsNativeWindowInAsh(window)) { | |
| 179 gfx::Rect expanded_bounds = bounds(); | |
| 180 int outside_bounds = ash::kResizeOutsideBoundsSize; | |
| 181 if (aura::Env::GetInstance()->is_touch_down()) | |
| 182 outside_bounds *= ash::kResizeOutsideBoundsScaleForTouch; | |
| 183 expanded_bounds.Inset(-outside_bounds, -outside_bounds); | |
| 184 if (!expanded_bounds.Contains(point)) | |
| 185 return HTNOWHERE; | |
| 186 | |
| 187 resize_inside_bounds_size = ash::kResizeInsideBoundsSize; | |
| 188 resize_area_corner_size = ash::kResizeAreaCornerSize; | |
| 189 } | |
| 190 #endif | |
| 191 | |
| 192 // Check the frame first, as we allow a small area overlapping the contents | |
| 193 // to be used for resize handles. | |
| 194 bool can_ever_resize = frame_->widget_delegate() ? | |
| 195 frame_->widget_delegate()->CanResize() : | |
| 196 false; | |
| 197 // Don't allow overlapping resize handles when the window is maximized or | |
| 198 // fullscreen, as it can't be resized in those states. | |
| 199 int resize_border = | |
| 200 (frame_->IsMaximized() || frame_->IsFullscreen()) ? 0 : | |
| 201 resize_inside_bounds_size; | |
| 202 int frame_component = GetHTComponentForFrame(point, | |
| 203 resize_border, | |
| 204 resize_border, | |
| 205 resize_area_corner_size, | |
| 206 resize_area_corner_size, | |
| 207 can_ever_resize); | |
| 208 if (frame_component != HTNOWHERE) | |
| 209 return frame_component; | |
| 210 | |
| 211 // Check for possible draggable region in the client area for the frameless | |
| 212 // window. | |
| 213 if (window_->frameless() && | |
| 214 window_->draggable_region() && | |
| 215 window_->draggable_region()->contains(point.x(), point.y())) | |
| 216 return HTCAPTION; | |
| 217 | |
| 218 int client_component = frame_->client_view()->NonClientHitTest(point); | |
| 219 if (client_component != HTNOWHERE) | |
| 220 return client_component; | |
| 221 | |
| 222 // Then see if the point is within any of the window controls. | |
| 223 if (close_button_ && close_button_->visible() && | |
| 224 close_button_->GetMirroredBounds().Contains(point)) | |
| 225 return HTCLOSE; | |
| 226 | |
| 227 // Caption is a safe default. | |
| 228 return HTCAPTION; | |
| 229 } | |
| 230 | |
| 231 void ShellWindowFrameView::GetWindowMask(const gfx::Size& size, | |
| 232 gfx::Path* window_mask) { | |
| 233 // We got nothing to say about no window mask. | |
| 234 } | |
| 235 | |
| 236 // views::View implementation. | |
| 237 | |
| 238 gfx::Size ShellWindowFrameView::GetPreferredSize() { | |
| 239 gfx::Size pref = frame_->client_view()->GetPreferredSize(); | |
| 240 gfx::Rect bounds(0, 0, pref.width(), pref.height()); | |
| 241 return frame_->non_client_view()->GetWindowBoundsForClientBounds( | |
| 242 bounds).size(); | |
| 243 } | |
| 244 | |
| 245 void ShellWindowFrameView::Layout() { | |
| 246 if (window_->frameless()) | |
| 247 return; | |
| 248 gfx::Size close_size = close_button_->GetPreferredSize(); | |
| 249 const int kButtonOffsetY = 0; | |
| 250 const int kButtonSpacing = 1; | |
| 251 const int kRightMargin = 3; | |
| 252 | |
| 253 close_button_->SetBounds( | |
| 254 width() - kRightMargin - close_size.width(), | |
| 255 kButtonOffsetY, | |
| 256 close_size.width(), | |
| 257 close_size.height()); | |
| 258 | |
| 259 bool can_ever_resize = frame_->widget_delegate() ? | |
| 260 frame_->widget_delegate()->CanResize() : | |
| 261 false; | |
| 262 maximize_button_->SetEnabled(can_ever_resize); | |
| 263 gfx::Size maximize_size = maximize_button_->GetPreferredSize(); | |
| 264 maximize_button_->SetBounds( | |
| 265 close_button_->x() - kButtonSpacing - maximize_size.width(), | |
| 266 kButtonOffsetY, | |
| 267 maximize_size.width(), | |
| 268 maximize_size.height()); | |
| 269 gfx::Size restore_size = restore_button_->GetPreferredSize(); | |
| 270 restore_button_->SetBounds( | |
| 271 close_button_->x() - kButtonSpacing - restore_size.width(), | |
| 272 kButtonOffsetY, | |
| 273 restore_size.width(), | |
| 274 restore_size.height()); | |
| 275 | |
| 276 bool maximized = frame_->IsMaximized(); | |
| 277 maximize_button_->SetVisible(!maximized); | |
| 278 restore_button_->SetVisible(maximized); | |
| 279 if (maximized) | |
| 280 maximize_button_->SetState(views::CustomButton::STATE_NORMAL); | |
| 281 else | |
| 282 restore_button_->SetState(views::CustomButton::STATE_NORMAL); | |
| 283 | |
| 284 gfx::Size minimize_size = minimize_button_->GetPreferredSize(); | |
| 285 minimize_button_->SetBounds( | |
| 286 maximize_button_->x() - kButtonSpacing - minimize_size.width(), | |
| 287 kButtonOffsetY, | |
| 288 minimize_size.width(), | |
| 289 minimize_size.height()); | |
| 290 } | |
| 291 | |
| 292 void ShellWindowFrameView::OnPaint(gfx::Canvas* canvas) { | |
| 293 if (window_->frameless()) | |
| 294 return; | |
| 295 | |
| 296 ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance(); | |
| 297 if (ShouldPaintAsActive()) { | |
| 298 close_button_->SetImage(views::CustomButton::STATE_NORMAL, | |
| 299 rb.GetNativeImageNamed(IDR_APP_WINDOW_CLOSE).ToImageSkia()); | |
| 300 } else { | |
| 301 close_button_->SetImage(views::CustomButton::STATE_NORMAL, | |
| 302 rb.GetNativeImageNamed(IDR_APP_WINDOW_CLOSE_U).ToImageSkia()); | |
| 303 } | |
| 304 | |
| 305 // TODO(jeremya): different look for inactive? | |
| 306 SkPaint paint; | |
| 307 paint.setAntiAlias(false); | |
| 308 paint.setStyle(SkPaint::kFill_Style); | |
| 309 paint.setColor(SK_ColorWHITE); | |
| 310 gfx::Path path; | |
| 311 const int radius = frame_->IsMaximized() ? 0 : 1; | |
| 312 path.moveTo(0, radius); | |
| 313 path.lineTo(radius, 0); | |
| 314 path.lineTo(width() - radius - 1, 0); | |
| 315 path.lineTo(width(), radius + 1); | |
| 316 path.lineTo(width(), kCaptionHeight); | |
| 317 path.lineTo(0, kCaptionHeight); | |
| 318 path.close(); | |
| 319 canvas->DrawPath(path, paint); | |
| 320 } | |
| 321 | |
| 322 const char* ShellWindowFrameView::GetClassName() const { | |
| 323 return kViewClassName; | |
| 324 } | |
| 325 | |
| 326 gfx::Size ShellWindowFrameView::GetMinimumSize() { | |
| 327 gfx::Size min_size = frame_->client_view()->GetMinimumSize(); | |
| 328 if (window_->frameless()) | |
| 329 return min_size; | |
| 330 | |
| 331 // Ensure we can display the top of the caption area. | |
| 332 gfx::Rect client_bounds = GetBoundsForClientView(); | |
| 333 min_size.Enlarge(0, client_bounds.y()); | |
| 334 // Ensure we have enough space for the window icon and buttons. We allow | |
| 335 // the title string to collapse to zero width. | |
| 336 int closeButtonOffsetX = | |
| 337 (kCaptionHeight - close_button_->height()) / 2; | |
| 338 int header_width = close_button_->width() + closeButtonOffsetX * 2; | |
| 339 if (header_width > min_size.width()) | |
| 340 min_size.set_width(header_width); | |
| 341 return min_size; | |
| 342 } | |
| 343 | |
| 344 gfx::Size ShellWindowFrameView::GetMaximumSize() { | |
| 345 gfx::Size max_size = frame_->client_view()->GetMaximumSize(); | |
| 346 | |
| 347 // Add to the client maximum size the height of any title bar and borders. | |
| 348 gfx::Size client_size = GetBoundsForClientView().size(); | |
| 349 if (max_size.width()) | |
| 350 max_size.Enlarge(width() - client_size.width(), 0); | |
| 351 if (max_size.height()) | |
| 352 max_size.Enlarge(0, height() - client_size.height()); | |
| 353 | |
| 354 return max_size; | |
| 355 } | |
| 356 | |
| 357 // views::ButtonListener implementation. | |
| 358 | |
| 359 void ShellWindowFrameView::ButtonPressed(views::Button* sender, | |
| 360 const ui::Event& event) { | |
| 361 DCHECK(!window_->frameless()); | |
| 362 if (sender == close_button_) | |
| 363 frame_->Close(); | |
| 364 else if (sender == maximize_button_) | |
| 365 frame_->Maximize(); | |
| 366 else if (sender == restore_button_) | |
| 367 frame_->Restore(); | |
| 368 else if (sender == minimize_button_) | |
| 369 frame_->Minimize(); | |
| 370 } | |
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