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[chromium-blink-merge.git] / ui / views / window / custom_frame_view.cc
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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.
5 #include "ui/views/window/custom_frame_view.h"
7 #include <algorithm>
8 #include <vector>
10 #include "base/strings/utf_string_conversions.h"
11 #include "ui/base/hit_test.h"
12 #include "ui/base/l10n/l10n_util.h"
13 #include "ui/base/resource/resource_bundle.h"
14 #include "ui/gfx/canvas.h"
15 #include "ui/gfx/font.h"
16 #include "ui/gfx/geometry/rect.h"
17 #include "ui/gfx/image/image.h"
18 #include "ui/gfx/path.h"
19 #include "ui/resources/grit/ui_resources.h"
20 #include "ui/strings/grit/ui_strings.h"
21 #include "ui/views/color_constants.h"
22 #include "ui/views/controls/button/image_button.h"
23 #include "ui/views/resources/grit/views_resources.h"
24 #include "ui/views/views_delegate.h"
25 #include "ui/views/widget/native_widget_private.h"
26 #include "ui/views/widget/widget.h"
27 #include "ui/views/widget/widget_delegate.h"
28 #include "ui/views/window/client_view.h"
29 #include "ui/views/window/frame_background.h"
30 #include "ui/views/window/window_button_order_provider.h"
31 #include "ui/views/window/window_resources.h"
32 #include "ui/views/window/window_shape.h"
34 namespace views {
36 namespace {
38 // The frame border is only visible in restored mode and is hardcoded to 4 px on
39 // each side regardless of the system window border size.
40 const int kFrameBorderThickness = 4;
41 // In the window corners, the resize areas don't actually expand bigger, but the
42 // 16 px at the end of each edge triggers diagonal resizing.
43 const int kResizeAreaCornerSize = 16;
44 // The titlebar never shrinks too short to show the caption button plus some
45 // padding below it.
46 const int kCaptionButtonHeightWithPadding = 19;
47 // The titlebar has a 2 px 3D edge along the top and bottom.
48 const int kTitlebarTopAndBottomEdgeThickness = 2;
49 // The icon is inset 2 px from the left frame border.
50 const int kIconLeftSpacing = 2;
51 // The space between the window icon and the title text.
52 const int kTitleIconOffsetX = 4;
53 // The space between the title text and the caption buttons.
54 const int kTitleCaptionSpacing = 5;
56 #if !defined(OS_WIN)
57 // The icon never shrinks below 16 px on a side.
58 const int kIconMinimumSize = 16;
59 #endif
61 #if defined(OS_CHROMEOS)
62 // Chrome OS uses a dark gray.
63 const SkColor kDefaultColorFrame = SkColorSetRGB(109, 109, 109);
64 const SkColor kDefaultColorFrameInactive = SkColorSetRGB(176, 176, 176);
65 #else
66 // Windows and Linux use a blue.
67 const SkColor kDefaultColorFrame = SkColorSetRGB(66, 116, 201);
68 const SkColor kDefaultColorFrameInactive = SkColorSetRGB(161, 182, 228);
69 #endif
71 const gfx::FontList& GetTitleFontList() {
72 static const gfx::FontList title_font_list =
73 internal::NativeWidgetPrivate::GetWindowTitleFontList();
74 return title_font_list;
77 void LayoutButton(ImageButton* button, const gfx::Rect& bounds) {
78 button->SetVisible(true);
79 button->SetImageAlignment(ImageButton::ALIGN_LEFT,
80 ImageButton::ALIGN_BOTTOM);
81 button->SetBoundsRect(bounds);
84 } // namespace
86 ///////////////////////////////////////////////////////////////////////////////
87 // CustomFrameView, public:
89 CustomFrameView::CustomFrameView()
90 : frame_(NULL),
91 window_icon_(NULL),
92 minimize_button_(NULL),
93 maximize_button_(NULL),
94 restore_button_(NULL),
95 close_button_(NULL),
96 frame_background_(new FrameBackground()),
97 minimum_title_bar_x_(0),
98 maximum_title_bar_x_(-1) {
101 CustomFrameView::~CustomFrameView() {
104 void CustomFrameView::Init(Widget* frame) {
105 frame_ = frame;
107 close_button_ = InitWindowCaptionButton(IDS_APP_ACCNAME_CLOSE,
108 IDR_CLOSE, IDR_CLOSE_H, IDR_CLOSE_P);
109 minimize_button_ = InitWindowCaptionButton(IDS_APP_ACCNAME_MINIMIZE,
110 IDR_MINIMIZE, IDR_MINIMIZE_H, IDR_MINIMIZE_P);
111 maximize_button_ = InitWindowCaptionButton(IDS_APP_ACCNAME_MAXIMIZE,
112 IDR_MAXIMIZE, IDR_MAXIMIZE_H, IDR_MAXIMIZE_P);
113 restore_button_ = InitWindowCaptionButton(IDS_APP_ACCNAME_RESTORE,
114 IDR_RESTORE, IDR_RESTORE_H, IDR_RESTORE_P);
116 if (frame_->widget_delegate()->ShouldShowWindowIcon()) {
117 window_icon_ = new ImageButton(this);
118 AddChildView(window_icon_);
122 ///////////////////////////////////////////////////////////////////////////////
123 // CustomFrameView, NonClientFrameView implementation:
125 gfx::Rect CustomFrameView::GetBoundsForClientView() const {
126 return client_view_bounds_;
129 gfx::Rect CustomFrameView::GetWindowBoundsForClientBounds(
130 const gfx::Rect& client_bounds) const {
131 int top_height = NonClientTopBorderHeight();
132 int border_thickness = NonClientBorderThickness();
133 return gfx::Rect(client_bounds.x() - border_thickness,
134 client_bounds.y() - top_height,
135 client_bounds.width() + (2 * border_thickness),
136 client_bounds.height() + top_height + border_thickness);
139 int CustomFrameView::NonClientHitTest(const gfx::Point& point) {
140 // Sanity check.
141 if (!bounds().Contains(point))
142 return HTNOWHERE;
144 int frame_component = frame_->client_view()->NonClientHitTest(point);
146 // See if we're in the sysmenu region. (We check the ClientView first to be
147 // consistent with OpaqueBrowserFrameView; it's not really necessary here.)
148 gfx::Rect sysmenu_rect(IconBounds());
149 // In maximized mode we extend the rect to the screen corner to take advantage
150 // of Fitts' Law.
151 if (frame_->IsMaximized())
152 sysmenu_rect.SetRect(0, 0, sysmenu_rect.right(), sysmenu_rect.bottom());
153 sysmenu_rect.set_x(GetMirroredXForRect(sysmenu_rect));
154 if (sysmenu_rect.Contains(point))
155 return (frame_component == HTCLIENT) ? HTCLIENT : HTSYSMENU;
157 if (frame_component != HTNOWHERE)
158 return frame_component;
160 // Then see if the point is within any of the window controls.
161 if (close_button_->GetMirroredBounds().Contains(point))
162 return HTCLOSE;
163 if (restore_button_->GetMirroredBounds().Contains(point))
164 return HTMAXBUTTON;
165 if (maximize_button_->GetMirroredBounds().Contains(point))
166 return HTMAXBUTTON;
167 if (minimize_button_->GetMirroredBounds().Contains(point))
168 return HTMINBUTTON;
169 if (window_icon_ && window_icon_->GetMirroredBounds().Contains(point))
170 return HTSYSMENU;
172 int window_component = GetHTComponentForFrame(point, FrameBorderThickness(),
173 NonClientBorderThickness(), kResizeAreaCornerSize, kResizeAreaCornerSize,
174 frame_->widget_delegate()->CanResize());
175 // Fall back to the caption if no other component matches.
176 return (window_component == HTNOWHERE) ? HTCAPTION : window_component;
179 void CustomFrameView::GetWindowMask(const gfx::Size& size,
180 gfx::Path* window_mask) {
181 DCHECK(window_mask);
182 if (frame_->IsMaximized() || !ShouldShowTitleBarAndBorder())
183 return;
185 GetDefaultWindowMask(size, window_mask);
188 void CustomFrameView::ResetWindowControls() {
189 restore_button_->SetState(CustomButton::STATE_NORMAL);
190 minimize_button_->SetState(CustomButton::STATE_NORMAL);
191 maximize_button_->SetState(CustomButton::STATE_NORMAL);
192 // The close button isn't affected by this constraint.
195 void CustomFrameView::UpdateWindowIcon() {
196 if (window_icon_)
197 window_icon_->SchedulePaint();
200 void CustomFrameView::UpdateWindowTitle() {
201 if (frame_->widget_delegate()->ShouldShowWindowTitle())
202 SchedulePaintInRect(title_bounds_);
205 void CustomFrameView::SizeConstraintsChanged() {
206 ResetWindowControls();
207 LayoutWindowControls();
210 ///////////////////////////////////////////////////////////////////////////////
211 // CustomFrameView, View overrides:
213 void CustomFrameView::OnPaint(gfx::Canvas* canvas) {
214 if (!ShouldShowTitleBarAndBorder())
215 return;
217 if (frame_->IsMaximized())
218 PaintMaximizedFrameBorder(canvas);
219 else
220 PaintRestoredFrameBorder(canvas);
221 PaintTitleBar(canvas);
222 if (ShouldShowClientEdge())
223 PaintRestoredClientEdge(canvas);
226 void CustomFrameView::Layout() {
227 if (ShouldShowTitleBarAndBorder()) {
228 LayoutWindowControls();
229 LayoutTitleBar();
232 LayoutClientView();
235 gfx::Size CustomFrameView::GetPreferredSize() const {
236 return frame_->non_client_view()->GetWindowBoundsForClientBounds(
237 gfx::Rect(frame_->client_view()->GetPreferredSize())).size();
240 gfx::Size CustomFrameView::GetMinimumSize() const {
241 return frame_->non_client_view()->GetWindowBoundsForClientBounds(
242 gfx::Rect(frame_->client_view()->GetMinimumSize())).size();
245 gfx::Size CustomFrameView::GetMaximumSize() const {
246 gfx::Size max_size = frame_->client_view()->GetMaximumSize();
247 gfx::Size converted_size =
248 frame_->non_client_view()->GetWindowBoundsForClientBounds(
249 gfx::Rect(max_size)).size();
250 return gfx::Size(max_size.width() == 0 ? 0 : converted_size.width(),
251 max_size.height() == 0 ? 0 : converted_size.height());
254 ///////////////////////////////////////////////////////////////////////////////
255 // CustomFrameView, ButtonListener implementation:
257 void CustomFrameView::ButtonPressed(Button* sender, const ui::Event& event) {
258 if (sender == close_button_)
259 frame_->Close();
260 else if (sender == minimize_button_)
261 frame_->Minimize();
262 else if (sender == maximize_button_)
263 frame_->Maximize();
264 else if (sender == restore_button_)
265 frame_->Restore();
268 ///////////////////////////////////////////////////////////////////////////////
269 // CustomFrameView, private:
271 int CustomFrameView::FrameBorderThickness() const {
272 return frame_->IsMaximized() ? 0 : kFrameBorderThickness;
275 int CustomFrameView::NonClientBorderThickness() const {
276 // In maximized mode, we don't show a client edge.
277 return FrameBorderThickness() +
278 (ShouldShowClientEdge() ? kClientEdgeThickness : 0);
281 int CustomFrameView::NonClientTopBorderHeight() const {
282 return std::max(FrameBorderThickness() + IconSize(),
283 CaptionButtonY() + kCaptionButtonHeightWithPadding) +
284 TitlebarBottomThickness();
287 int CustomFrameView::CaptionButtonY() const {
288 // Maximized buttons start at window top so that even if their images aren't
289 // drawn flush with the screen edge, they still obey Fitts' Law.
290 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
291 return FrameBorderThickness();
292 #else
293 return frame_->IsMaximized() ? FrameBorderThickness() : kFrameShadowThickness;
294 #endif
297 int CustomFrameView::TitlebarBottomThickness() const {
298 return kTitlebarTopAndBottomEdgeThickness +
299 (ShouldShowClientEdge() ? kClientEdgeThickness : 0);
302 int CustomFrameView::IconSize() const {
303 #if defined(OS_WIN)
304 // This metric scales up if either the titlebar height or the titlebar font
305 // size are increased.
306 return GetSystemMetrics(SM_CYSMICON);
307 #else
308 return std::max(GetTitleFontList().GetHeight(), kIconMinimumSize);
309 #endif
312 gfx::Rect CustomFrameView::IconBounds() const {
313 int size = IconSize();
314 int frame_thickness = FrameBorderThickness();
315 // Our frame border has a different "3D look" than Windows'. Theirs has a
316 // more complex gradient on the top that they push their icon/title below;
317 // then the maximized window cuts this off and the icon/title are centered
318 // in the remaining space. Because the apparent shape of our border is
319 // simpler, using the same positioning makes things look slightly uncentered
320 // with restored windows, so when the window is restored, instead of
321 // calculating the remaining space from below the frame border, we calculate
322 // from below the 3D edge.
323 int unavailable_px_at_top = frame_->IsMaximized() ?
324 frame_thickness : kTitlebarTopAndBottomEdgeThickness;
325 // When the icon is shorter than the minimum space we reserve for the caption
326 // button, we vertically center it. We want to bias rounding to put extra
327 // space above the icon, since the 3D edge (+ client edge, for restored
328 // windows) below looks (to the eye) more like additional space than does the
329 // 3D edge (or nothing at all, for maximized windows) above; hence the +1.
330 int y = unavailable_px_at_top + (NonClientTopBorderHeight() -
331 unavailable_px_at_top - size - TitlebarBottomThickness() + 1) / 2;
332 return gfx::Rect(frame_thickness + kIconLeftSpacing + minimum_title_bar_x_,
333 y, size, size);
336 bool CustomFrameView::ShouldShowTitleBarAndBorder() const {
337 if (frame_->IsFullscreen())
338 return false;
340 if (ViewsDelegate::GetInstance()) {
341 return !ViewsDelegate::GetInstance()->WindowManagerProvidesTitleBar(
342 frame_->IsMaximized());
345 return true;
348 bool CustomFrameView::ShouldShowClientEdge() const {
349 return !frame_->IsMaximized() && ShouldShowTitleBarAndBorder();
352 void CustomFrameView::PaintRestoredFrameBorder(gfx::Canvas* canvas) {
353 frame_background_->set_frame_color(GetFrameColor());
354 const gfx::ImageSkia* frame_image = GetFrameImage();
355 frame_background_->set_theme_image(frame_image);
356 frame_background_->set_top_area_height(frame_image->height());
358 ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
360 frame_background_->SetCornerImages(
361 rb.GetImageNamed(IDR_WINDOW_TOP_LEFT_CORNER).ToImageSkia(),
362 rb.GetImageNamed(IDR_WINDOW_TOP_RIGHT_CORNER).ToImageSkia(),
363 rb.GetImageNamed(IDR_WINDOW_BOTTOM_LEFT_CORNER).ToImageSkia(),
364 rb.GetImageNamed(IDR_WINDOW_BOTTOM_RIGHT_CORNER).ToImageSkia());
365 frame_background_->SetSideImages(
366 rb.GetImageNamed(IDR_WINDOW_LEFT_SIDE).ToImageSkia(),
367 rb.GetImageNamed(IDR_WINDOW_TOP_CENTER).ToImageSkia(),
368 rb.GetImageNamed(IDR_WINDOW_RIGHT_SIDE).ToImageSkia(),
369 rb.GetImageNamed(IDR_WINDOW_BOTTOM_CENTER).ToImageSkia());
371 frame_background_->PaintRestored(canvas, this);
374 void CustomFrameView::PaintMaximizedFrameBorder(gfx::Canvas* canvas) {
375 const gfx::ImageSkia* frame_image = GetFrameImage();
376 frame_background_->set_theme_image(frame_image);
377 frame_background_->set_top_area_height(frame_image->height());
378 frame_background_->PaintMaximized(canvas, this);
380 ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
382 // TODO(jamescook): Migrate this into FrameBackground.
383 // The bottom of the titlebar actually comes from the top of the Client Edge
384 // graphic, with the actual client edge clipped off the bottom.
385 const gfx::ImageSkia* titlebar_bottom = rb.GetImageNamed(
386 IDR_APP_TOP_CENTER).ToImageSkia();
387 int edge_height = titlebar_bottom->height() -
388 (ShouldShowClientEdge() ? kClientEdgeThickness : 0);
389 canvas->TileImageInt(*titlebar_bottom, 0,
390 frame_->client_view()->y() - edge_height, width(), edge_height);
393 void CustomFrameView::PaintTitleBar(gfx::Canvas* canvas) {
394 WidgetDelegate* delegate = frame_->widget_delegate();
396 // It seems like in some conditions we can be asked to paint after the window
397 // that contains us is WM_DESTROYed. At this point, our delegate is NULL. The
398 // correct long term fix may be to shut down the RootView in WM_DESTROY.
399 if (!delegate || !delegate->ShouldShowWindowTitle())
400 return;
402 gfx::Rect rect = title_bounds_;
403 rect.set_x(GetMirroredXForRect(title_bounds_));
404 canvas->DrawStringRect(delegate->GetWindowTitle(), GetTitleFontList(),
405 SK_ColorWHITE, rect);
408 void CustomFrameView::PaintRestoredClientEdge(gfx::Canvas* canvas) {
409 gfx::Rect client_area_bounds = frame_->client_view()->bounds();
410 // The shadows have a 1 pixel gap on the inside, so draw them 1 pixel inwards.
411 gfx::Rect shadowed_area_bounds = client_area_bounds;
412 shadowed_area_bounds.Inset(gfx::Insets(1, 1, 1, 1));
413 int shadowed_area_top = shadowed_area_bounds.y();
415 ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
417 // Top: left, center, right sides.
418 const gfx::ImageSkia* top_left = rb.GetImageSkiaNamed(IDR_APP_TOP_LEFT);
419 const gfx::ImageSkia* top_center = rb.GetImageSkiaNamed(IDR_APP_TOP_CENTER);
420 const gfx::ImageSkia* top_right = rb.GetImageSkiaNamed(IDR_APP_TOP_RIGHT);
421 int top_edge_y = shadowed_area_top - top_center->height();
422 canvas->DrawImageInt(*top_left,
423 shadowed_area_bounds.x() - top_left->width(),
424 top_edge_y);
425 canvas->TileImageInt(*top_center,
426 shadowed_area_bounds.x(),
427 top_edge_y,
428 shadowed_area_bounds.width(),
429 top_center->height());
430 canvas->DrawImageInt(*top_right, shadowed_area_bounds.right(), top_edge_y);
432 // Right side.
433 const gfx::ImageSkia* right = rb.GetImageSkiaNamed(IDR_CONTENT_RIGHT_SIDE);
434 int shadowed_area_bottom =
435 std::max(shadowed_area_top, shadowed_area_bounds.bottom());
436 int shadowed_area_height = shadowed_area_bottom - shadowed_area_top;
437 canvas->TileImageInt(*right,
438 shadowed_area_bounds.right(),
439 shadowed_area_top,
440 right->width(),
441 shadowed_area_height);
443 // Bottom: left, center, right sides.
444 const gfx::ImageSkia* bottom_left =
445 rb.GetImageSkiaNamed(IDR_CONTENT_BOTTOM_LEFT_CORNER);
446 const gfx::ImageSkia* bottom_center =
447 rb.GetImageSkiaNamed(IDR_CONTENT_BOTTOM_CENTER);
448 const gfx::ImageSkia* bottom_right =
449 rb.GetImageSkiaNamed(IDR_CONTENT_BOTTOM_RIGHT_CORNER);
451 canvas->DrawImageInt(*bottom_left,
452 shadowed_area_bounds.x() - bottom_left->width(),
453 shadowed_area_bottom);
455 canvas->TileImageInt(*bottom_center,
456 shadowed_area_bounds.x(),
457 shadowed_area_bottom,
458 shadowed_area_bounds.width(),
459 bottom_right->height());
461 canvas->DrawImageInt(*bottom_right,
462 shadowed_area_bounds.right(),
463 shadowed_area_bottom);
464 // Left side.
465 const gfx::ImageSkia* left = rb.GetImageSkiaNamed(IDR_CONTENT_LEFT_SIDE);
466 canvas->TileImageInt(*left,
467 shadowed_area_bounds.x() - left->width(),
468 shadowed_area_top,
469 left->width(),
470 shadowed_area_height);
473 SkColor CustomFrameView::GetFrameColor() const {
474 return frame_->IsActive() ? kDefaultColorFrame : kDefaultColorFrameInactive;
477 const gfx::ImageSkia* CustomFrameView::GetFrameImage() const {
478 return ui::ResourceBundle::GetSharedInstance().GetImageNamed(
479 frame_->IsActive() ? IDR_FRAME : IDR_FRAME_INACTIVE).ToImageSkia();
482 void CustomFrameView::LayoutWindowControls() {
483 minimum_title_bar_x_ = 0;
484 maximum_title_bar_x_ = width();
486 if (bounds().IsEmpty())
487 return;
489 int caption_y = CaptionButtonY();
490 bool is_maximized = frame_->IsMaximized();
491 // There should always be the same number of non-shadow pixels visible to the
492 // side of the caption buttons. In maximized mode we extend the edge button
493 // to the screen corner to obey Fitts' Law.
494 int extra_width = is_maximized ?
495 (kFrameBorderThickness - kFrameShadowThickness) : 0;
496 int next_button_x = FrameBorderThickness();
498 bool is_restored = !is_maximized && !frame_->IsMinimized();
499 ImageButton* invisible_button = is_restored ? restore_button_
500 : maximize_button_;
501 invisible_button->SetVisible(false);
503 WindowButtonOrderProvider* button_order =
504 WindowButtonOrderProvider::GetInstance();
505 const std::vector<views::FrameButton>& leading_buttons =
506 button_order->leading_buttons();
507 const std::vector<views::FrameButton>& trailing_buttons =
508 button_order->trailing_buttons();
510 ImageButton* button = NULL;
511 for (std::vector<views::FrameButton>::const_iterator it =
512 leading_buttons.begin(); it != leading_buttons.end(); ++it) {
513 button = GetImageButton(*it);
514 if (!button)
515 continue;
516 gfx::Rect target_bounds(gfx::Point(next_button_x, caption_y),
517 button->GetPreferredSize());
518 if (it == leading_buttons.begin())
519 target_bounds.set_width(target_bounds.width() + extra_width);
520 LayoutButton(button, target_bounds);
521 next_button_x += button->width();
522 minimum_title_bar_x_ = std::min(width(), next_button_x);
525 // Trailing buttions are laid out in a RTL fashion
526 next_button_x = width() - FrameBorderThickness();
527 for (std::vector<views::FrameButton>::const_reverse_iterator it =
528 trailing_buttons.rbegin(); it != trailing_buttons.rend(); ++it) {
529 button = GetImageButton(*it);
530 if (!button)
531 continue;
532 gfx::Rect target_bounds(gfx::Point(next_button_x, caption_y),
533 button->GetPreferredSize());
534 if (it == trailing_buttons.rbegin())
535 target_bounds.set_width(target_bounds.width() + extra_width);
536 target_bounds.Offset(-target_bounds.width(), 0);
537 LayoutButton(button, target_bounds);
538 next_button_x = button->x();
539 maximum_title_bar_x_ = std::max(minimum_title_bar_x_, next_button_x);
543 void CustomFrameView::LayoutTitleBar() {
544 DCHECK_GE(maximum_title_bar_x_, 0);
545 // The window title position is calculated based on the icon position, even
546 // when there is no icon.
547 gfx::Rect icon_bounds(IconBounds());
548 bool show_window_icon = window_icon_ != NULL;
549 if (show_window_icon)
550 window_icon_->SetBoundsRect(icon_bounds);
552 if (!frame_->widget_delegate()->ShouldShowWindowTitle())
553 return;
555 // The offset between the window left edge and the title text.
556 int title_x = show_window_icon ? icon_bounds.right() + kTitleIconOffsetX
557 : icon_bounds.x();
558 int title_height = GetTitleFontList().GetHeight();
559 // We bias the title position so that when the difference between the icon and
560 // title heights is odd, the extra pixel of the title is above the vertical
561 // midline rather than below. This compensates for how the icon is already
562 // biased downwards (see IconBounds()) and helps prevent descenders on the
563 // title from overlapping the 3D edge at the bottom of the titlebar.
564 title_bounds_.SetRect(title_x,
565 icon_bounds.y() + ((icon_bounds.height() - title_height - 1) / 2),
566 std::max(0, maximum_title_bar_x_ - kTitleCaptionSpacing -
567 title_x), title_height);
570 void CustomFrameView::LayoutClientView() {
571 if (!ShouldShowTitleBarAndBorder()) {
572 client_view_bounds_ = bounds();
573 return;
576 int top_height = NonClientTopBorderHeight();
577 int border_thickness = NonClientBorderThickness();
578 client_view_bounds_.SetRect(border_thickness, top_height,
579 std::max(0, width() - (2 * border_thickness)),
580 std::max(0, height() - top_height - border_thickness));
583 ImageButton* CustomFrameView::InitWindowCaptionButton(
584 int accessibility_string_id,
585 int normal_image_id,
586 int hot_image_id,
587 int pushed_image_id) {
588 ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
589 ImageButton* button = new ImageButton(this);
590 button->SetAccessibleName(l10n_util::GetStringUTF16(accessibility_string_id));
591 button->SetImage(CustomButton::STATE_NORMAL,
592 rb.GetImageNamed(normal_image_id).ToImageSkia());
593 button->SetImage(CustomButton::STATE_HOVERED,
594 rb.GetImageNamed(hot_image_id).ToImageSkia());
595 button->SetImage(CustomButton::STATE_PRESSED,
596 rb.GetImageNamed(pushed_image_id).ToImageSkia());
597 AddChildView(button);
598 return button;
601 ImageButton* CustomFrameView::GetImageButton(views::FrameButton frame_button) {
602 ImageButton* button = NULL;
603 switch (frame_button) {
604 case views::FRAME_BUTTON_MINIMIZE: {
605 button = minimize_button_;
606 // If we should not show the minimize button, then we return NULL as we
607 // don't want this button to become visible and to be laid out.
608 bool should_show = frame_->widget_delegate()->CanMinimize();
609 button->SetVisible(should_show);
610 if (!should_show)
611 return NULL;
613 break;
615 case views::FRAME_BUTTON_MAXIMIZE: {
616 bool is_restored = !frame_->IsMaximized() && !frame_->IsMinimized();
617 button = is_restored ? maximize_button_ : restore_button_;
618 // If we should not show the maximize/restore button, then we return
619 // NULL as we don't want this button to become visible and to be laid
620 // out.
621 bool should_show = frame_->widget_delegate()->CanMaximize();
622 button->SetVisible(should_show);
623 if (!should_show)
624 return NULL;
626 break;
628 case views::FRAME_BUTTON_CLOSE: {
629 button = close_button_;
630 break;
633 return button;
636 } // namespace views