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 "chrome/browser/ui/views/panels/panel_view.h"
8 #include "base/logging.h"
9 #include "base/message_loop/message_loop.h"
10 #include "base/strings/utf_string_conversions.h"
11 #include "chrome/app/chrome_command_ids.h"
12 #include "chrome/browser/profiles/profile.h"
13 #include "chrome/browser/ui/host_desktop.h"
14 #include "chrome/browser/ui/panels/panel.h"
15 #include "chrome/browser/ui/panels/panel_bounds_animation.h"
16 #include "chrome/browser/ui/panels/panel_manager.h"
17 #include "chrome/browser/ui/panels/stacked_panel_collection.h"
18 #include "chrome/browser/ui/views/auto_keep_alive.h"
19 #include "chrome/browser/ui/views/panels/panel_frame_view.h"
20 #include "content/public/browser/render_view_host.h"
21 #include "content/public/browser/render_widget_host_view.h"
22 #include "content/public/browser/web_contents.h"
23 #include "ui/aura/window.h"
24 #include "ui/aura/window_tree_host.h"
25 #include "ui/gfx/image/image.h"
26 #include "ui/gfx/path.h"
27 #include "ui/gfx/screen.h"
28 #include "ui/views/controls/button/image_button.h"
29 #include "ui/views/controls/webview/webview.h"
30 #include "ui/views/widget/widget.h"
33 #include "base/win/windows_version.h"
34 #include "chrome/browser/shell_integration.h"
35 #include "chrome/browser/ui/views/panels/taskbar_window_thumbnailer_win.h"
36 #include "ui/base/win/shell.h"
37 #include "ui/gfx/icon_util.h"
38 #include "ui/views/win/hwnd_util.h"
41 #if defined(USE_X11) && !defined(OS_CHROMEOS)
42 #include "chrome/browser/shell_integration_linux.h"
43 #include "chrome/browser/ui/views/panels/x11_panel_resizer.h"
44 #include "chrome/browser/web_applications/web_app.h"
45 #include "ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h"
51 // If the height of a stacked panel shrinks below this threshold during the
52 // user resizing, it will be treated as minimized.
53 const int kStackedPanelHeightShrinkThresholdToBecomeMinimized =
54 panel::kTitlebarHeight + 20;
57 // Supported accelerators.
58 // Note: We can't use the acclerator table defined in chrome/browser/ui/views
59 // due to checkdeps violation.
60 struct AcceleratorMapping {
61 ui::KeyboardCode keycode;
65 const AcceleratorMapping kPanelAcceleratorMap[] = {
66 { ui::VKEY_W, ui::EF_CONTROL_DOWN, IDC_CLOSE_WINDOW },
67 { ui::VKEY_W, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN, IDC_CLOSE_WINDOW },
68 { ui::VKEY_F4, ui::EF_ALT_DOWN, IDC_CLOSE_WINDOW },
69 { ui::VKEY_R, ui::EF_CONTROL_DOWN, IDC_RELOAD },
70 { ui::VKEY_F5, ui::EF_NONE, IDC_RELOAD },
71 { ui::VKEY_R, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN,
72 IDC_RELOAD_IGNORING_CACHE },
73 { ui::VKEY_F5, ui::EF_CONTROL_DOWN, IDC_RELOAD_IGNORING_CACHE },
74 { ui::VKEY_F5, ui::EF_SHIFT_DOWN, IDC_RELOAD_IGNORING_CACHE },
75 { ui::VKEY_ESCAPE, ui::EF_NONE, IDC_STOP },
76 { ui::VKEY_OEM_MINUS, ui::EF_CONTROL_DOWN, IDC_ZOOM_MINUS },
77 { ui::VKEY_SUBTRACT, ui::EF_CONTROL_DOWN, IDC_ZOOM_MINUS },
78 { ui::VKEY_0, ui::EF_CONTROL_DOWN, IDC_ZOOM_NORMAL },
79 { ui::VKEY_NUMPAD0, ui::EF_CONTROL_DOWN, IDC_ZOOM_NORMAL },
80 { ui::VKEY_OEM_PLUS, ui::EF_CONTROL_DOWN, IDC_ZOOM_PLUS },
81 { ui::VKEY_ADD, ui::EF_CONTROL_DOWN, IDC_ZOOM_PLUS },
82 { ui::VKEY_I, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN, IDC_DEV_TOOLS },
83 { ui::VKEY_J, ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN,
84 IDC_DEV_TOOLS_CONSOLE },
87 const std::map<ui::Accelerator, int>& GetAcceleratorTable() {
88 static std::map<ui::Accelerator, int>* accelerators = NULL;
90 accelerators = new std::map<ui::Accelerator, int>();
91 for (size_t i = 0; i < arraysize(kPanelAcceleratorMap); ++i) {
92 ui::Accelerator accelerator(kPanelAcceleratorMap[i].keycode,
93 kPanelAcceleratorMap[i].modifiers);
94 (*accelerators)[accelerator] = kPanelAcceleratorMap[i].command_id;
100 // NativePanelTesting implementation.
101 class NativePanelTestingViews : public NativePanelTesting {
103 explicit NativePanelTestingViews(PanelView* panel_view);
104 virtual ~NativePanelTestingViews();
107 virtual void PressLeftMouseButtonTitlebar(
108 const gfx::Point& mouse_location, panel::ClickModifier modifier) OVERRIDE;
109 virtual void ReleaseMouseButtonTitlebar(
110 panel::ClickModifier modifier) OVERRIDE;
111 virtual void DragTitlebar(const gfx::Point& mouse_location) OVERRIDE;
112 virtual void CancelDragTitlebar() OVERRIDE;
113 virtual void FinishDragTitlebar() OVERRIDE;
114 virtual bool VerifyDrawingAttention() const OVERRIDE;
115 virtual bool VerifyActiveState(bool is_active) OVERRIDE;
116 virtual bool VerifyAppIcon() const OVERRIDE;
117 virtual bool VerifySystemMinimizeState() const OVERRIDE;
118 virtual bool IsWindowVisible() const OVERRIDE;
119 virtual bool IsWindowSizeKnown() const OVERRIDE;
120 virtual bool IsAnimatingBounds() const OVERRIDE;
121 virtual bool IsButtonVisible(
122 panel::TitlebarButtonType button_type) const OVERRIDE;
123 virtual panel::CornerStyle GetWindowCornerStyle() const OVERRIDE;
124 virtual bool EnsureApplicationRunOnForeground() OVERRIDE;
126 PanelView* panel_view_;
129 NativePanelTestingViews::NativePanelTestingViews(PanelView* panel_view)
130 : panel_view_(panel_view) {
133 NativePanelTestingViews::~NativePanelTestingViews() {
136 void NativePanelTestingViews::PressLeftMouseButtonTitlebar(
137 const gfx::Point& mouse_location, panel::ClickModifier modifier) {
138 panel_view_->OnTitlebarMousePressed(mouse_location);
141 void NativePanelTestingViews::ReleaseMouseButtonTitlebar(
142 panel::ClickModifier modifier) {
143 panel_view_->OnTitlebarMouseReleased(modifier);
146 void NativePanelTestingViews::DragTitlebar(const gfx::Point& mouse_location) {
147 panel_view_->OnTitlebarMouseDragged(mouse_location);
150 void NativePanelTestingViews::CancelDragTitlebar() {
151 panel_view_->OnTitlebarMouseCaptureLost();
154 void NativePanelTestingViews::FinishDragTitlebar() {
155 panel_view_->OnTitlebarMouseReleased(panel::NO_MODIFIER);
158 bool NativePanelTestingViews::VerifyDrawingAttention() const {
159 base::MessageLoop::current()->RunUntilIdle();
160 return panel_view_->GetFrameView()->GetPaintState() ==
161 PanelFrameView::PAINT_FOR_ATTENTION;
164 bool NativePanelTestingViews::VerifyActiveState(bool is_active) {
165 return panel_view_->GetFrameView()->GetPaintState() ==
166 (is_active ? PanelFrameView::PAINT_AS_ACTIVE
167 : PanelFrameView::PAINT_AS_INACTIVE);
170 bool NativePanelTestingViews::VerifyAppIcon() const {
172 // We only care about Windows 7 and later.
173 if (base::win::GetVersion() < base::win::VERSION_WIN7)
176 HWND native_window = views::HWNDForWidget(panel_view_->window());
177 HICON app_icon = reinterpret_cast<HICON>(
178 ::SendMessage(native_window, WM_GETICON, ICON_BIG, 0L));
181 scoped_ptr<SkBitmap> bitmap(IconUtil::CreateSkBitmapFromHICON(app_icon));
182 return bitmap.get() &&
183 bitmap->width() == panel::kPanelAppIconSize &&
184 bitmap->height() == panel::kPanelAppIconSize;
190 bool NativePanelTestingViews::VerifySystemMinimizeState() const {
192 HWND native_window = views::HWNDForWidget(panel_view_->window());
193 WINDOWPLACEMENT placement;
194 if (!::GetWindowPlacement(native_window, &placement))
196 if (placement.showCmd == SW_MINIMIZE || placement.showCmd == SW_SHOWMINIMIZED)
199 // If the panel window has owner window, as in stacked mode, check its owner
200 // window. Note that owner window, instead of parent window, is returned
201 // though GWL_HWNDPARENT contains 'parent'.
203 reinterpret_cast<HWND>(::GetWindowLongPtr(native_window,
205 if (!owner_window || !::GetWindowPlacement(owner_window, &placement))
207 return placement.showCmd == SW_MINIMIZE ||
208 placement.showCmd == SW_SHOWMINIMIZED;
214 bool NativePanelTestingViews::IsWindowVisible() const {
215 return panel_view_->window()->IsVisible();
218 bool NativePanelTestingViews::IsWindowSizeKnown() const {
222 bool NativePanelTestingViews::IsAnimatingBounds() const {
223 return panel_view_->IsAnimatingBounds();
226 bool NativePanelTestingViews::IsButtonVisible(
227 panel::TitlebarButtonType button_type) const {
228 PanelFrameView* frame_view = panel_view_->GetFrameView();
230 switch (button_type) {
231 case panel::CLOSE_BUTTON:
232 return frame_view->close_button()->visible();
233 case panel::MINIMIZE_BUTTON:
234 return frame_view->minimize_button()->visible();
235 case panel::RESTORE_BUTTON:
236 return frame_view->restore_button()->visible();
243 panel::CornerStyle NativePanelTestingViews::GetWindowCornerStyle() const {
244 return panel_view_->GetFrameView()->corner_style();
247 bool NativePanelTestingViews::EnsureApplicationRunOnForeground() {
248 // Not needed on views.
255 NativePanel* Panel::CreateNativePanel(Panel* panel,
256 const gfx::Rect& bounds,
257 bool always_on_top) {
258 return new PanelView(panel, bounds, always_on_top);
261 // The panel window has to be created as always-on-top. We cannot create it
262 // as non-always-on-top and then change it to always-on-top because Windows
263 // system might deny making a window always-on-top if the application is not
264 // a foreground application.
265 PanelView::PanelView(Panel* panel, const gfx::Rect& bounds, bool always_on_top)
269 window_closed_(false),
271 always_on_top_(always_on_top),
273 user_resizing_(false),
275 user_resizing_interior_stacked_panel_edge_(false),
277 mouse_pressed_(false),
278 mouse_dragging_state_(NO_DRAGGING),
279 is_drawing_attention_(false),
280 force_to_paint_as_inactive_(false),
281 old_focused_view_(NULL) {
282 window_ = new views::Widget;
283 views::Widget::InitParams params(views::Widget::InitParams::TYPE_WINDOW);
284 params.delegate = this;
285 params.remove_standard_frame = true;
286 params.keep_on_top = always_on_top;
287 params.visible_on_all_workspaces = always_on_top;
288 params.bounds = bounds;
290 #if defined(USE_X11) && !defined(OS_CHROMEOS)
291 params.wm_class_name = web_app::GetWMClassFromAppName(panel->app_name());
292 params.wm_class_class = shell_integration_linux::GetProgramClassName();
295 window_->Init(params);
296 window_->set_frame_type(views::Widget::FRAME_TYPE_FORCE_CUSTOM);
297 window_->set_focus_on_creation(false);
298 window_->AddObserver(this);
300 // Prevent the browser process from shutting down while this window is open.
301 keep_alive_.reset(new AutoKeepAlive(GetNativePanelWindow()));
303 web_view_ = new views::WebView(NULL);
304 AddChildView(web_view_);
306 // Register accelarators supported by panels.
307 views::FocusManager* focus_manager = GetFocusManager();
308 const std::map<ui::Accelerator, int>& accelerator_table =
309 GetAcceleratorTable();
310 for (std::map<ui::Accelerator, int>::const_iterator iter =
311 accelerator_table.begin();
312 iter != accelerator_table.end(); ++iter) {
313 focus_manager->RegisterAccelerator(
314 iter->first, ui::AcceleratorManager::kNormalPriority, this);
318 ui::win::SetAppIdForWindow(
319 ShellIntegration::GetAppModelIdForProfile(
320 base::UTF8ToWide(panel->app_name()), panel->profile()->GetPath()),
321 views::HWNDForWidget(window_));
322 ui::win::PreventWindowFromPinning(views::HWNDForWidget(window_));
325 #if defined(USE_X11) && !defined(OS_CHROMEOS)
326 // Swap the default non client event handler with one which handles resizes
327 // for panels entirely within Chrome. This is needed because it is not
328 // possible to tell when a resize performed by the window manager ends.
329 views::DesktopWindowTreeHostX11* host =
330 views::DesktopWindowTreeHostX11::GetHostForXID(
331 window_->GetNativeView()->GetHost()->GetAcceleratedWidget());
332 scoped_ptr<ui::EventHandler> resizer(
333 new X11PanelResizer(panel_.get(), window_->GetNativeWindow()));
334 host->SwapNonClientEventHandler(resizer.Pass());
338 PanelView::~PanelView() {
341 void PanelView::ShowPanel() {
346 void PanelView::ShowPanelInactive() {
347 if (window_->IsVisible())
349 window_->ShowInactive();
350 // No animation is used for initial creation of a panel on Win.
351 // Signal immediately that pending actions can be performed.
352 panel_->manager()->OnPanelAnimationEnded(panel_.get());
355 gfx::Rect PanelView::GetPanelBounds() const {
359 void PanelView::SetPanelBounds(const gfx::Rect& bounds) {
360 SetBoundsInternal(bounds, true);
363 void PanelView::SetPanelBoundsInstantly(const gfx::Rect& bounds) {
364 SetBoundsInternal(bounds, false);
367 void PanelView::SetBoundsInternal(const gfx::Rect& new_bounds, bool animate) {
368 if (bounds_ == new_bounds)
371 bounds_ = new_bounds;
374 // If no animation is in progress, apply bounds change instantly. Otherwise,
375 // continue the animation with new target bounds.
376 if (!IsAnimatingBounds())
377 SetWidgetBounds(bounds_);
381 animation_start_bounds_ = window_->GetWindowBoundsInScreen();
383 bounds_animator_.reset(new PanelBoundsAnimation(
384 this, panel_.get(), animation_start_bounds_, new_bounds));
385 bounds_animator_->Start();
389 bool PanelView::FilterMessage(HWND hwnd,
396 if (w_param == WMSZ_BOTTOM)
397 user_resizing_interior_stacked_panel_edge_ = true;
404 void PanelView::AnimationEnded(const gfx::Animation* animation) {
405 panel_->manager()->OnPanelAnimationEnded(panel_.get());
408 void PanelView::AnimationProgressed(const gfx::Animation* animation) {
409 gfx::Rect new_bounds = bounds_animator_->CurrentValueBetween(
410 animation_start_bounds_, bounds_);
411 SetWidgetBounds(new_bounds);
414 void PanelView::SetWidgetBounds(const gfx::Rect& new_bounds) {
416 // An overlapped window is a top-level window that has a titlebar, border,
417 // and client area. The Windows system will automatically put the shadow
418 // around the whole window. Also the system will enforce the minimum height
419 // (38 pixels based on observation) for the overlapped window such that it
420 // will always has the space for the titlebar.
422 // On contrast, a popup window is a bare minimum window without border and
423 // titlebar by default. It is often used for the popup menu and the window
424 // with short life. The Windows system does not add the shadow around the
425 // whole window though CS_DROPSHADOW class style could be passed to add the
426 // drop shadow which is only around the right and bottom edges.
428 // The height of the title-only or minimized panel is smaller than the minimum
429 // overlapped window height. If the panel still uses the overlapped window
430 // style, Windows system will automatically increase the window height. To
431 // work around this limitation, we temporarily change the window style to
432 // popup when the height to set is smaller than the minimum overlapped window
433 // height and then restore the window style to overlapped when the height
435 static const int kMinimumOverlappedWindowHeight = 38;
436 gfx::Rect old_bounds = GetWidget()->GetRestoredBounds();
437 if (old_bounds.height() > kMinimumOverlappedWindowHeight &&
438 new_bounds.height() <= kMinimumOverlappedWindowHeight) {
439 // When the panel height shrinks below the minimum overlapped window height,
440 // change the window style to popup such that we can show the title-only
441 // and minimized panel without additional height being added by the system.
442 UpdateWindowAttribute(GWL_STYLE,
444 WS_OVERLAPPED | WS_THICKFRAME | WS_SYSMENU,
446 } else if (old_bounds.height() <= kMinimumOverlappedWindowHeight &&
447 new_bounds.height() > kMinimumOverlappedWindowHeight) {
448 // Change the window style back to overlappped when the panel height grow
449 // taller than the minimum overlapped window height.
450 UpdateWindowAttribute(GWL_STYLE,
451 WS_OVERLAPPED | WS_THICKFRAME | WS_SYSMENU,
457 GetWidget()->SetBounds(new_bounds);
460 void PanelView::ClosePanel() {
461 // We're already closing. Do nothing.
465 if (!panel_->ShouldCloseWindow())
468 // Cancel any currently running animation since we're closing down.
469 if (bounds_animator_.get())
470 bounds_animator_.reset();
472 if (panel_->GetWebContents()) {
473 // Still have web contents. Allow renderer to shut down.
474 // When web contents are destroyed, we will be called back again.
475 panel_->OnWindowClosing();
479 panel_->OnNativePanelClosed();
482 window_closed_ = true;
485 void PanelView::ActivatePanel() {
489 void PanelView::DeactivatePanel() {
494 // Need custom behavior for always-on-top panels to avoid
495 // the OS activating a minimized panel when this one is
497 if (always_on_top_) {
498 ::SetForegroundWindow(::GetDesktopWindow());
503 window_->Deactivate();
506 bool PanelView::IsPanelActive() const {
510 void PanelView::PreventActivationByOS(bool prevent_activation) {
512 // Set the flags "NoActivate" to make sure the minimized panels do not get
513 // activated by the OS. In addition, set "AppWindow" to make sure the
514 // minimized panels do appear in the taskbar and Alt-Tab menu if it is not
516 int value_to_change = WS_EX_NOACTIVATE;
517 if (!panel_->stack())
518 value_to_change |= WS_EX_APPWINDOW;
519 if (prevent_activation)
520 UpdateWindowAttribute(GWL_EXSTYLE, value_to_change, 0, false);
522 UpdateWindowAttribute(GWL_EXSTYLE, 0, value_to_change, false);
526 gfx::NativeWindow PanelView::GetNativePanelWindow() {
527 return window_->GetNativeWindow();
530 void PanelView::UpdatePanelTitleBar() {
535 void PanelView::UpdatePanelLoadingAnimations(bool should_animate) {
536 GetFrameView()->UpdateThrobber();
539 void PanelView::PanelWebContentsFocused(content::WebContents* contents) {
540 web_view_->OnWebContentsFocused(contents);
543 void PanelView::PanelCut() {
544 // Nothing to do since we do not have panel-specific system menu.
548 void PanelView::PanelCopy() {
549 // Nothing to do since we do not have panel-specific system menu.
553 void PanelView::PanelPaste() {
554 // Nothing to do since we do not have panel-specific system menu.
558 void PanelView::DrawAttention(bool draw_attention) {
559 DCHECK((panel_->attention_mode() & Panel::USE_PANEL_ATTENTION) != 0);
561 if (is_drawing_attention_ == draw_attention)
563 is_drawing_attention_ = draw_attention;
564 GetFrameView()->SchedulePaint();
566 if ((panel_->attention_mode() & Panel::USE_SYSTEM_ATTENTION) != 0) {
568 // The default implementation of Widget::FlashFrame only flashes 5 times.
569 // We need more than that.
571 fwi.cbSize = sizeof(fwi);
572 fwi.hwnd = views::HWNDForWidget(window_);
573 if (draw_attention) {
574 fwi.dwFlags = FLASHW_ALL;
575 fwi.uCount = panel::kNumberOfTimesToFlashPanelForAttention;
578 // TODO(jianli): calling FlashWindowEx with FLASHW_STOP flag for the
579 // panel window has the same problem as the stack window. However,
580 // we cannot take the similar fix since there is no background window
581 // to replace for the regular panel window. More investigation is needed.
582 fwi.dwFlags = FLASHW_STOP;
584 ::FlashWindowEx(&fwi);
586 window_->FlashFrame(draw_attention);
591 bool PanelView::IsDrawingAttention() const {
592 return is_drawing_attention_;
595 void PanelView::HandlePanelKeyboardEvent(
596 const content::NativeWebKeyboardEvent& event) {
597 views::FocusManager* focus_manager = GetFocusManager();
598 if (focus_manager->shortcut_handling_suspended())
601 ui::Accelerator accelerator(
602 static_cast<ui::KeyboardCode>(event.windowsKeyCode),
603 content::GetModifiersFromNativeWebKeyboardEvent(event));
604 if (event.type == blink::WebInputEvent::KeyUp)
605 accelerator.set_type(ui::ET_KEY_RELEASED);
606 focus_manager->ProcessAccelerator(accelerator);
609 void PanelView::FullScreenModeChanged(bool is_full_screen) {
610 if (is_full_screen) {
611 if (window_->IsVisible() && always_on_top_)
614 if (!window_->IsVisible()) {
618 // When hiding and showing again a top-most window that belongs to a
619 // background application (i.e. the application is not a foreground one),
620 // the window may loose top-most placement even though its WS_EX_TOPMOST
621 // bit is still set. Re-issuing SetWindowsPos() returns the window to its
622 // top-most placement.
624 window_->SetAlwaysOnTop(true);
630 bool PanelView::IsPanelAlwaysOnTop() const {
631 return always_on_top_;
634 void PanelView::SetPanelAlwaysOnTop(bool on_top) {
635 if (always_on_top_ == on_top)
637 always_on_top_ = on_top;
639 window_->SetAlwaysOnTop(on_top);
640 window_->SetVisibleOnAllWorkspaces(on_top);
641 window_->non_client_view()->Layout();
642 window_->client_view()->Layout();
645 void PanelView::UpdatePanelMinimizeRestoreButtonVisibility() {
646 GetFrameView()->UpdateTitlebarMinimizeRestoreButtonVisibility();
649 void PanelView::SetWindowCornerStyle(panel::CornerStyle corner_style) {
650 GetFrameView()->SetWindowCornerStyle(corner_style);
653 void PanelView::PanelExpansionStateChanging(Panel::ExpansionState old_state,
654 Panel::ExpansionState new_state) {
656 // Live preview is only available since Windows 7.
657 if (base::win::GetVersion() < base::win::VERSION_WIN7)
660 if (panel_->collection()->type() != PanelCollection::DOCKED)
663 bool is_minimized = old_state != Panel::EXPANDED;
664 bool will_be_minimized = new_state != Panel::EXPANDED;
665 if (is_minimized == will_be_minimized)
668 HWND native_window = views::HWNDForWidget(window_);
670 if (!thumbnailer_.get()) {
671 DCHECK(native_window);
672 thumbnailer_.reset(new TaskbarWindowThumbnailerWin(native_window, NULL));
675 // Cache the image at this point.
676 if (will_be_minimized) {
677 // If the panel is still active (we will deactivate the minimizd panel at
678 // later time), we need to paint it immediately as inactive so that we can
679 // take a snapshot of inactive panel.
681 force_to_paint_as_inactive_ = true;
682 ::RedrawWindow(native_window, NULL, NULL,
683 RDW_NOCHILDREN | RDW_INVALIDATE | RDW_UPDATENOW);
686 // Start the thumbnailer and capture the snapshot now.
687 thumbnailer_->Start();
688 thumbnailer_->CaptureSnapshot();
690 force_to_paint_as_inactive_ = false;
691 thumbnailer_->Stop();
697 gfx::Size PanelView::WindowSizeFromContentSize(
698 const gfx::Size& content_size) const {
699 gfx::Size frame = GetFrameView()->NonClientAreaSize();
700 return gfx::Size(content_size.width() + frame.width(),
701 content_size.height() + frame.height());
704 gfx::Size PanelView::ContentSizeFromWindowSize(
705 const gfx::Size& window_size) const {
706 gfx::Size frame = GetFrameView()->NonClientAreaSize();
707 return gfx::Size(window_size.width() - frame.width(),
708 window_size.height() - frame.height());
711 int PanelView::TitleOnlyHeight() const {
712 return panel::kTitlebarHeight;
715 void PanelView::MinimizePanelBySystem() {
719 bool PanelView::IsPanelMinimizedBySystem() const {
720 return window_->IsMinimized();
723 bool PanelView::IsPanelShownOnActiveDesktop() const {
725 // Virtual desktop is not supported by the native Windows system.
733 void PanelView::ShowShadow(bool show) {
735 // The overlapped window has the shadow while the popup window does not have
737 int overlap_style = WS_OVERLAPPED | WS_THICKFRAME | WS_SYSMENU;
738 int popup_style = WS_POPUP;
739 UpdateWindowAttribute(GWL_STYLE,
740 show ? overlap_style : popup_style,
741 show ? popup_style : overlap_style,
746 void PanelView::AttachWebContents(content::WebContents* contents) {
747 web_view_->SetWebContents(contents);
750 void PanelView::DetachWebContents(content::WebContents* contents) {
751 web_view_->SetWebContents(NULL);
754 NativePanelTesting* PanelView::CreateNativePanelTesting() {
755 return new NativePanelTestingViews(this);
758 void PanelView::OnDisplayChanged() {
759 panel_->manager()->display_settings_provider()->OnDisplaySettingsChanged();
762 void PanelView::OnWorkAreaChanged() {
763 panel_->manager()->display_settings_provider()->OnDisplaySettingsChanged();
766 bool PanelView::WillProcessWorkAreaChange() const {
770 views::View* PanelView::GetContentsView() {
774 views::NonClientFrameView* PanelView::CreateNonClientFrameView(
775 views::Widget* widget) {
776 PanelFrameView* frame_view = new PanelFrameView(this);
781 bool PanelView::CanResize() const {
785 bool PanelView::CanMaximize() const {
789 base::string16 PanelView::GetWindowTitle() const {
790 return panel_->GetWindowTitle();
793 gfx::ImageSkia PanelView::GetWindowAppIcon() {
794 gfx::Image app_icon = panel_->app_icon();
795 if (app_icon.IsEmpty())
796 return GetWindowIcon();
798 return *app_icon.ToImageSkia();
801 gfx::ImageSkia PanelView::GetWindowIcon() {
802 gfx::Image icon = panel_->GetCurrentPageIcon();
803 return icon.IsEmpty() ? gfx::ImageSkia() : *icon.ToImageSkia();
806 void PanelView::WindowClosing() {
807 // When closing a panel via window.close, API or the close button,
808 // ClosePanel() is called first, destroying the native |window_|
809 // which results in this method being called. ClosePanel() sets
810 // |window_closed_| to NULL.
811 // If we still have a |window_closed_| here, the close was triggered by the
812 // OS, (e.g. clicking on taskbar menu), which destroys the native |window_|
813 // without invoking ClosePanel() beforehand.
814 if (!window_closed_) {
815 panel_->OnWindowClosing();
817 DCHECK(window_closed_);
821 void PanelView::DeleteDelegate() {
825 void PanelView::OnWindowBeginUserBoundsChange() {
826 user_resizing_ = true;
827 panel_->OnPanelStartUserResizing();
830 StackedPanelCollection* stack = panel_->stack();
832 // Listen to WM_SIZING message in order to find out whether the interior
833 // edge is being resized such that the specific maximum size could be
834 // passed to the system.
835 if (panel_->stack()->GetPanelBelow(panel_.get())) {
836 ui::HWNDSubclass::AddFilterToTarget(views::HWNDForWidget(window_), this);
837 user_resizing_interior_stacked_panel_edge_ = false;
840 // Keep track of the original full size of the resizing panel such that it
841 // can be restored to this size once it is shrunk to minimized state.
842 original_full_size_of_resizing_panel_ = panel_->full_size();
844 // Keep track of the original full size of the panel below the resizing
845 // panel such that it can be restored to this size once it is shrunk to
847 Panel* below_panel = stack->GetPanelBelow(panel_.get());
848 if (below_panel && !below_panel->IsMinimized()) {
849 original_full_size_of_panel_below_resizing_panel_ =
850 below_panel->full_size();
856 void PanelView::OnWindowEndUserBoundsChange() {
857 user_resizing_ = false;
858 panel_->OnPanelEndUserResizing();
860 // No need to proceed with post-resizing update when there is no size change.
861 gfx::Rect new_bounds = window_->GetWindowBoundsInScreen();
862 if (bounds_ == new_bounds)
864 bounds_ = new_bounds;
866 panel_->IncreaseMaxSize(bounds_.size());
867 panel_->set_full_size(bounds_.size());
870 StackedPanelCollection* stack = panel_->stack();
872 // No need to listen to WM_SIZING message any more.
873 ui::HWNDSubclass::RemoveFilterFromAllTargets(this);
875 // If the height of resizing panel shrinks close to the titlebar height,
876 // treate it as minimized. This could occur when the user is dragging
877 // 1) the top edge of the top panel downward to shrink it; or
878 // 2) the bottom edge of any panel upward to shrink it.
879 if (panel_->GetBounds().height() <
880 kStackedPanelHeightShrinkThresholdToBecomeMinimized) {
881 stack->MinimizePanel(panel_.get());
882 panel_->set_full_size(original_full_size_of_resizing_panel_);
885 // If the height of panel below the resizing panel shrinks close to the
886 // titlebar height, treat it as minimized. This could occur when the user
887 // is dragging the bottom edge of non-bottom panel downward to expand it
888 // and also shrink the panel below.
889 Panel* below_panel = stack->GetPanelBelow(panel_.get());
890 if (below_panel && !below_panel->IsMinimized() &&
891 below_panel->GetBounds().height() <
892 kStackedPanelHeightShrinkThresholdToBecomeMinimized) {
893 stack->MinimizePanel(below_panel);
894 below_panel->set_full_size(
895 original_full_size_of_panel_below_resizing_panel_);
900 panel_->collection()->RefreshLayout();
903 views::Widget* PanelView::GetWidget() {
907 const views::Widget* PanelView::GetWidget() const {
911 void PanelView::UpdateLoadingAnimations(bool should_animate) {
912 GetFrameView()->UpdateThrobber();
915 void PanelView::UpdateWindowTitle() {
916 window_->UpdateWindowTitle();
917 GetFrameView()->UpdateTitle();
920 void PanelView::UpdateWindowIcon() {
921 window_->UpdateWindowIcon();
922 GetFrameView()->UpdateIcon();
925 void PanelView::Layout() {
926 // |web_view_| might not be created yet when the window is first created.
928 web_view_->SetBounds(0, 0, width(), height());
931 gfx::Size PanelView::GetMinimumSize() const {
932 // If the panel is minimized, it can be rendered to very small size, like
933 // 4-pixel lines when it is docked. Otherwise, its size should not be less
934 // than its minimum size.
935 return panel_->IsMinimized() ? gfx::Size() :
936 gfx::Size(panel::kPanelMinWidth, panel::kPanelMinHeight);
939 gfx::Size PanelView::GetMaximumSize() const {
940 // If the user is resizing a stacked panel by its bottom edge, make sure its
941 // height cannot grow more than what the panel below it could offer. This is
942 // because growing a stacked panel by y amount will shrink the panel below it
943 // by same amount and we do not want the panel below it being shrunk to be
944 // smaller than the titlebar.
946 if (panel_->stack() && user_resizing_interior_stacked_panel_edge_) {
947 Panel* below_panel = panel_->stack()->GetPanelBelow(panel_.get());
948 if (below_panel && !below_panel->IsMinimized()) {
949 return gfx::Size(0, below_panel->GetBounds().bottom() -
950 panel_->GetBounds().y() - panel::kTitlebarHeight);
957 bool PanelView::AcceleratorPressed(const ui::Accelerator& accelerator) {
958 if (mouse_pressed_ && accelerator.key_code() == ui::VKEY_ESCAPE) {
959 OnTitlebarMouseCaptureLost();
963 // No other accelerator is allowed when the drag begins.
964 if (mouse_dragging_state_ == DRAGGING_STARTED)
967 const std::map<ui::Accelerator, int>& accelerator_table =
968 GetAcceleratorTable();
969 std::map<ui::Accelerator, int>::const_iterator iter =
970 accelerator_table.find(accelerator);
971 DCHECK(iter != accelerator_table.end());
972 return panel_->ExecuteCommandIfEnabled(iter->second);
975 void PanelView::OnWidgetDestroying(views::Widget* widget) {
979 void PanelView::OnWidgetActivationChanged(views::Widget* widget, bool active) {
981 // WM_NCACTIVATED could be sent when an active window is being destroyed on
982 // Windows. We need to guard against this.
986 bool focused = active;
987 if (chrome::GetActiveDesktop() == chrome::HOST_DESKTOP_TYPE_NATIVE) {
988 // The panel window is in focus (actually accepting keystrokes) if it is
989 // active and belongs to a foreground application.
991 views::HWNDForWidget(widget) == ::GetForegroundWindow();
994 bool focused = active;
997 if (focused_ == focused)
1001 // Expand the panel if the minimized panel is activated by means other than
1002 // clicking on its titlebar. This is the workaround to support restoring the
1003 // minimized panel by other means, like alt-tabbing, win-tabbing, or clicking
1004 // the taskbar icon. Note that this workaround does not work for one edge
1005 // case: the mouse happens to be at the minimized panel when the user tries to
1006 // bring up the panel with the above alternatives.
1007 // When the user clicks on the minimized panel, the panel expansion will be
1008 // done when we process the mouse button pressed message.
1010 if (focused_ && panel_->IsMinimized() &&
1011 panel_->collection()->type() == PanelCollection::DOCKED &&
1012 gfx::Screen::GetScreenFor(widget->GetNativeWindow())->
1013 GetWindowUnderCursor() != widget->GetNativeWindow()) {
1018 panel()->OnActiveStateChanged(focused);
1020 // Give web contents view a chance to set focus to the appropriate element.
1022 content::WebContents* web_contents = panel_->GetWebContents();
1024 web_contents->RestoreFocus();
1028 void PanelView::OnWidgetBoundsChanged(views::Widget* widget,
1029 const gfx::Rect& new_bounds) {
1031 panel()->collection()->OnPanelResizedByMouse(panel(), new_bounds);
1034 bool PanelView::OnTitlebarMousePressed(const gfx::Point& mouse_location) {
1035 mouse_pressed_ = true;
1036 mouse_dragging_state_ = NO_DRAGGING;
1037 last_mouse_location_ = mouse_location;
1041 bool PanelView::OnTitlebarMouseDragged(const gfx::Point& mouse_location) {
1042 if (!mouse_pressed_)
1045 if (mouse_dragging_state_ == NO_DRAGGING &&
1046 ExceededDragThreshold(mouse_location - last_mouse_location_)) {
1047 // When a drag begins, we do not want to the client area to still receive
1048 // the focus. We do not need to do this for the unfocused minimized panel.
1049 if (!panel_->IsMinimized()) {
1050 old_focused_view_ = GetFocusManager()->GetFocusedView();
1051 GetFocusManager()->SetFocusedView(GetFrameView());
1054 panel_->manager()->StartDragging(panel_.get(), last_mouse_location_);
1055 mouse_dragging_state_ = DRAGGING_STARTED;
1057 if (mouse_dragging_state_ == DRAGGING_STARTED) {
1058 panel_->manager()->Drag(mouse_location);
1060 // Once in drag, update |last_mouse_location_| on each drag fragment, since
1061 // we already dragged the panel up to the current mouse location.
1062 last_mouse_location_ = mouse_location;
1067 bool PanelView::OnTitlebarMouseReleased(panel::ClickModifier modifier) {
1068 if (mouse_dragging_state_ != NO_DRAGGING) {
1069 // Ensure dragging a minimized panel does not leave it activated.
1070 // Windows activates a panel on mouse-down, regardless of our attempts
1071 // to prevent activation of a minimized panel. Now that we know mouse-down
1072 // resulted in a mouse-drag, we need to ensure the minimized panel is
1074 if (panel_->IsMinimized() && focused_)
1075 panel_->Deactivate();
1077 if (mouse_dragging_state_ == DRAGGING_STARTED) {
1078 // When a drag ends, restore the focus.
1079 if (old_focused_view_) {
1080 GetFocusManager()->SetFocusedView(old_focused_view_);
1081 old_focused_view_ = NULL;
1083 return EndDragging(false);
1086 // The panel drag was cancelled before the mouse is released. Do not
1087 // treat this as a click.
1091 panel_->OnTitlebarClicked(modifier);
1095 bool PanelView::OnTitlebarMouseCaptureLost() {
1096 if (mouse_dragging_state_ == DRAGGING_STARTED)
1097 return EndDragging(true);
1101 bool PanelView::EndDragging(bool cancelled) {
1102 // Only handle clicks that started in our window.
1103 if (!mouse_pressed_)
1105 mouse_pressed_ = false;
1107 mouse_dragging_state_ = DRAGGING_ENDED;
1108 panel_->manager()->EndDragging(cancelled);
1112 PanelFrameView* PanelView::GetFrameView() const {
1113 return static_cast<PanelFrameView*>(window_->non_client_view()->frame_view());
1116 bool PanelView::IsAnimatingBounds() const {
1117 if (bounds_animator_.get() && bounds_animator_->is_animating())
1119 StackedPanelCollection* stack = panel_->stack();
1122 return stack->IsAnimatingPanelBounds(panel_.get());
1126 void PanelView::UpdateWindowAttribute(int attribute_index,
1127 int attribute_value_to_set,
1128 int attribute_value_to_reset,
1129 bool update_frame) {
1130 HWND native_window = views::HWNDForWidget(window_);
1131 int value = ::GetWindowLong(native_window, attribute_index);
1132 int expected_value = value;
1133 if (attribute_value_to_set)
1134 expected_value |= attribute_value_to_set;
1135 if (attribute_value_to_reset)
1136 expected_value &= ~attribute_value_to_reset;
1137 if (value != expected_value)
1138 ::SetWindowLong(native_window, attribute_index, expected_value);
1140 // Per MSDN, if any of the frame styles is changed, SetWindowPos with the
1141 // SWP_FRAMECHANGED flag must be called in order for the cached window data
1142 // to be updated properly.
1143 // http://msdn.microsoft.com/en-us/library/windows/desktop/ms633591(v=vs.85).aspx
1145 ::SetWindowPos(native_window, NULL, 0, 0, 0, 0,
1146 SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOSIZE |
1147 SWP_NOZORDER | SWP_NOACTIVATE);