| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ash/host/ash_window_tree_host_x11.h" |
| |
| #include <X11/extensions/Xfixes.h> |
| #include <X11/extensions/XInput2.h> |
| #include <X11/Xatom.h> |
| #include <X11/Xlib.h> |
| |
| #include <string> |
| #include <vector> |
| |
| #include "ash/host/ash_window_tree_host_init_params.h" |
| #include "ash/host/root_window_transformer.h" |
| #include "base/basictypes.h" |
| #include "base/sys_info.h" |
| #include "ui/aura/env.h" |
| #include "ui/aura/window.h" |
| #include "ui/aura/window_event_dispatcher.h" |
| #include "ui/base/x/x11_util.h" |
| #include "ui/events/devices/device_data_manager.h" |
| #include "ui/events/devices/x11/device_list_cache_x11.h" |
| #include "ui/events/devices/x11/touch_factory_x11.h" |
| #include "ui/events/event.h" |
| #include "ui/events/event_utils.h" |
| #include "ui/events/null_event_targeter.h" |
| #include "ui/events/platform/platform_event_source.h" |
| #include "ui/gfx/geometry/rect.h" |
| #include "ui/gfx/screen.h" |
| |
| namespace ash { |
| |
| AshWindowTreeHostX11::AshWindowTreeHostX11(const gfx::Rect& initial_bounds) |
| : WindowTreeHostX11(initial_bounds), |
| transformer_helper_(this), |
| display_ids_(std::make_pair(gfx::Display::kInvalidDisplayID, |
| gfx::Display::kInvalidDisplayID)) { |
| aura::Env::GetInstance()->AddObserver(this); |
| } |
| |
| AshWindowTreeHostX11::~AshWindowTreeHostX11() { |
| aura::Env::GetInstance()->RemoveObserver(this); |
| UnConfineCursor(); |
| } |
| |
| void AshWindowTreeHostX11::ToggleFullScreen() { NOTIMPLEMENTED(); } |
| |
| bool AshWindowTreeHostX11::ConfineCursorToRootWindow() { |
| #if XFIXES_MAJOR >= 5 |
| DCHECK(!pointer_barriers_.get()); |
| if (pointer_barriers_) |
| return false; |
| pointer_barriers_.reset(new XID[4]); |
| gfx::Rect barrier(bounds()); |
| barrier.Inset(transformer_helper_.GetHostInsets()); |
| // Horizontal, top barriers. |
| pointer_barriers_[0] = XFixesCreatePointerBarrier(xdisplay(), |
| x_root_window(), |
| barrier.x(), |
| barrier.y(), |
| barrier.right(), |
| barrier.y(), |
| BarrierPositiveY, |
| 0, |
| XIAllDevices); |
| // Horizontal, bottom barriers. |
| pointer_barriers_[1] = XFixesCreatePointerBarrier(xdisplay(), |
| x_root_window(), |
| barrier.x(), |
| barrier.bottom(), |
| barrier.right(), |
| barrier.bottom(), |
| BarrierNegativeY, |
| 0, |
| XIAllDevices); |
| // Vertical, left barriers. |
| pointer_barriers_[2] = XFixesCreatePointerBarrier(xdisplay(), |
| x_root_window(), |
| barrier.x(), |
| barrier.y(), |
| barrier.x(), |
| barrier.bottom(), |
| BarrierPositiveX, |
| 0, |
| XIAllDevices); |
| // Vertical, right barriers. |
| pointer_barriers_[3] = XFixesCreatePointerBarrier(xdisplay(), |
| x_root_window(), |
| barrier.right(), |
| barrier.y(), |
| barrier.right(), |
| barrier.bottom(), |
| BarrierNegativeX, |
| 0, |
| XIAllDevices); |
| #endif |
| return true; |
| } |
| |
| void AshWindowTreeHostX11::UnConfineCursor() { |
| #if XFIXES_MAJOR >= 5 |
| if (pointer_barriers_) { |
| XFixesDestroyPointerBarrier(xdisplay(), pointer_barriers_[0]); |
| XFixesDestroyPointerBarrier(xdisplay(), pointer_barriers_[1]); |
| XFixesDestroyPointerBarrier(xdisplay(), pointer_barriers_[2]); |
| XFixesDestroyPointerBarrier(xdisplay(), pointer_barriers_[3]); |
| pointer_barriers_.reset(); |
| } |
| #endif |
| } |
| |
| void AshWindowTreeHostX11::SetRootWindowTransformer( |
| scoped_ptr<RootWindowTransformer> transformer) { |
| transformer_helper_.SetRootWindowTransformer(transformer.Pass()); |
| if (pointer_barriers_) { |
| UnConfineCursor(); |
| ConfineCursorToRootWindow(); |
| } |
| } |
| |
| gfx::Insets AshWindowTreeHostX11::GetHostInsets() const { |
| return transformer_helper_.GetHostInsets(); |
| } |
| |
| aura::WindowTreeHost* AshWindowTreeHostX11::AsWindowTreeHost() { return this; } |
| |
| void AshWindowTreeHostX11::UpdateDisplayID(int64 id1, int64 id2) { |
| display_ids_.first = id1; |
| display_ids_.second = id2; |
| } |
| |
| void AshWindowTreeHostX11::PrepareForShutdown() { |
| // Block the root window from dispatching events because it is weird for a |
| // ScreenPositionClient not to be attached to the root window and for |
| // ui::EventHandlers to be unable to convert the event's location to screen |
| // coordinates. |
| window()->SetEventTargeter( |
| scoped_ptr<ui::EventTargeter>(new ui::NullEventTargeter)); |
| |
| if (ui::PlatformEventSource::GetInstance()) { |
| // Block X events which are not turned into ui::Events from getting |
| // processed. (e.g. ConfigureNotify) |
| ui::PlatformEventSource::GetInstance()->RemovePlatformEventDispatcher(this); |
| } |
| } |
| |
| void AshWindowTreeHostX11::SetBounds(const gfx::Rect& bounds) { |
| WindowTreeHostX11::SetBounds(bounds); |
| if (pointer_barriers_) { |
| UnConfineCursor(); |
| ConfineCursorToRootWindow(); |
| } |
| } |
| |
| gfx::Transform AshWindowTreeHostX11::GetRootTransform() const { |
| return transformer_helper_.GetTransform(); |
| } |
| |
| void AshWindowTreeHostX11::SetRootTransform(const gfx::Transform& transform) { |
| transformer_helper_.SetTransform(transform); |
| } |
| |
| gfx::Transform AshWindowTreeHostX11::GetInverseRootTransform() const { |
| return transformer_helper_.GetInverseTransform(); |
| } |
| |
| void AshWindowTreeHostX11::UpdateRootWindowSize(const gfx::Size& host_size) { |
| transformer_helper_.UpdateWindowSize(host_size); |
| } |
| |
| void AshWindowTreeHostX11::OnCursorVisibilityChangedNative(bool show) { |
| #if defined(OS_CHROMEOS) |
| SetCrOSTapPaused(!show); |
| #endif |
| } |
| |
| void AshWindowTreeHostX11::OnWindowInitialized(aura::Window* window) {} |
| |
| void AshWindowTreeHostX11::OnHostInitialized(aura::WindowTreeHost* host) { |
| if (host != AsWindowTreeHost()) |
| return; |
| |
| #if defined(OS_CHROMEOS) |
| // We have to enable Tap-to-click by default because the cursor is set to |
| // visible in Shell::InitRootWindowController. |
| SetCrOSTapPaused(false); |
| #endif |
| } |
| |
| void AshWindowTreeHostX11::OnConfigureNotify() { |
| // Always update barrier and mouse location because |bounds_| might |
| // have already been updated in |SetBounds|. |
| if (pointer_barriers_) { |
| UnConfineCursor(); |
| ConfineCursorToRootWindow(); |
| } |
| } |
| |
| bool AshWindowTreeHostX11::CanDispatchEvent(const ui::PlatformEvent& event) { |
| if(!WindowTreeHostX11::CanDispatchEvent(event)) |
| return false; |
| XEvent* xev = event; |
| ui::EventType type = ui::EventTypeFromNative(xev); |
| // For touch event, check if the root window is residing on the according |
| // touch display. |
| switch (type) { |
| case ui::ET_TOUCH_MOVED: |
| case ui::ET_TOUCH_PRESSED: |
| case ui::ET_TOUCH_CANCELLED: |
| case ui::ET_TOUCH_RELEASED: { |
| #if defined(OS_CHROMEOS) |
| XIDeviceEvent* xiev = static_cast<XIDeviceEvent*>(xev->xcookie.data); |
| int64 touch_display_id = |
| ui::DeviceDataManager::GetInstance()->GetDisplayForTouchDevice( |
| xiev->deviceid); |
| // If we don't have record of display id for this touch device, check |
| // that if the event is within the bound of the root window. Note |
| // that in multi-monitor case, the event position is in framebuffer |
| // space so the bounds check will not work so well. |
| if (touch_display_id == gfx::Display::kInvalidDisplayID) { |
| if (base::SysInfo::IsRunningOnChromeOS() && |
| !bounds().Contains(ui::EventLocationFromNative(xev))) |
| return false; |
| } else if (touch_display_id != display_ids_.first && |
| touch_display_id != display_ids_.second) { |
| return false; |
| } |
| #endif // defined(OS_CHROMEOS) |
| return true; |
| } |
| default: |
| return true; |
| } |
| } |
| void AshWindowTreeHostX11::TranslateAndDispatchLocatedEvent( |
| ui::LocatedEvent* event) { |
| TranslateLocatedEvent(event); |
| SendEventToProcessor(event); |
| } |
| |
| #if defined(OS_CHROMEOS) |
| void AshWindowTreeHostX11::SetCrOSTapPaused(bool state) { |
| if (!ui::IsXInput2Available()) |
| return; |
| // Temporarily pause tap-to-click when the cursor is hidden. |
| Atom prop = atom_cache()->GetAtom("Tap Paused"); |
| unsigned char value = state; |
| XIDeviceList dev_list = |
| ui::DeviceListCacheX11::GetInstance()->GetXI2DeviceList(xdisplay()); |
| |
| // Only slave pointer devices could possibly have tap-paused property. |
| for (int i = 0; i < dev_list.count; i++) { |
| if (dev_list[i].use == XISlavePointer) { |
| Atom old_type; |
| int old_format; |
| unsigned long old_nvalues, bytes; |
| unsigned char* data; |
| int result = XIGetProperty(xdisplay(), |
| dev_list[i].deviceid, |
| prop, |
| 0, |
| 0, |
| False, |
| AnyPropertyType, |
| &old_type, |
| &old_format, |
| &old_nvalues, |
| &bytes, |
| &data); |
| if (result != Success) |
| continue; |
| XFree(data); |
| XIChangeProperty(xdisplay(), |
| dev_list[i].deviceid, |
| prop, |
| XA_INTEGER, |
| 8, |
| PropModeReplace, |
| &value, |
| 1); |
| } |
| } |
| } |
| #endif |
| |
| AshWindowTreeHost* AshWindowTreeHost::Create( |
| const AshWindowTreeHostInitParams& init_params) { |
| return new AshWindowTreeHostX11(init_params.initial_bounds); |
| } |
| |
| } // namespace ash |
