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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsWaylandDisplay.h"
#include <dlfcn.h>
#include "base/message_loop.h" // for MessageLoop
#include "base/task.h" // for NewRunnableMethod, etc
#include "mozilla/gfx/Logging.h" // for gfxCriticalNote
#include "mozilla/StaticMutex.h"
#include "mozilla/Array.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/ThreadLocal.h"
#include "mozilla/StaticPrefs_widget.h"
#include "mozilla/Sprintf.h"
#include "WidgetUtilsGtk.h"
#include "nsGtkKeyUtils.h"
namespace mozilla::widget {
static nsWaylandDisplay* gWaylandDisplay;
void WaylandDisplayRelease() {
MOZ_RELEASE_ASSERT(NS_IsMainThread(),
"WaylandDisplay can be released in main thread only!");
if (!gWaylandDisplay) {
NS_WARNING("WaylandDisplayRelease(): Wayland display is missing!");
return;
}
delete gWaylandDisplay;
gWaylandDisplay = nullptr;
}
wl_display* WaylandDisplayGetWLDisplay() {
GdkDisplay* disp = gdk_display_get_default();
if (!GdkIsWaylandDisplay(disp)) {
return nullptr;
}
return gdk_wayland_display_get_wl_display(disp);
}
nsWaylandDisplay* WaylandDisplayGet() {
if (!gWaylandDisplay) {
MOZ_RELEASE_ASSERT(NS_IsMainThread(),
"WaylandDisplay can be created in main thread only!");
wl_display* waylandDisplay = WaylandDisplayGetWLDisplay();
if (!waylandDisplay) {
return nullptr;
}
gWaylandDisplay = new nsWaylandDisplay(waylandDisplay);
}
return gWaylandDisplay;
}
void nsWaylandDisplay::SetShm(wl_shm* aShm) { mShm = aShm; }
void nsWaylandDisplay::SetCompositor(wl_compositor* aCompositor) {
mCompositor = aCompositor;
}
void nsWaylandDisplay::SetSubcompositor(wl_subcompositor* aSubcompositor) {
mSubcompositor = aSubcompositor;
}
void nsWaylandDisplay::SetIdleInhibitManager(
zwp_idle_inhibit_manager_v1* aIdleInhibitManager) {
mIdleInhibitManager = aIdleInhibitManager;
}
void nsWaylandDisplay::SetViewporter(wp_viewporter* aViewporter) {
mViewporter = aViewporter;
}
void nsWaylandDisplay::SetRelativePointerManager(
zwp_relative_pointer_manager_v1* aRelativePointerManager) {
mRelativePointerManager = aRelativePointerManager;
}
void nsWaylandDisplay::SetPointerConstraints(
zwp_pointer_constraints_v1* aPointerConstraints) {
mPointerConstraints = aPointerConstraints;
}
void nsWaylandDisplay::SetDmabuf(zwp_linux_dmabuf_v1* aDmabuf) {
mDmabuf = aDmabuf;
}
void nsWaylandDisplay::SetXdgActivation(xdg_activation_v1* aXdgActivation) {
mXdgActivation = aXdgActivation;
}
static void global_registry_handler(void* data, wl_registry* registry,
uint32_t id, const char* interface,
uint32_t version) {
auto* display = static_cast<nsWaylandDisplay*>(data);
if (!display) {
return;
}
nsDependentCString iface(interface);
if (iface.EqualsLiteral("wl_shm")) {
auto* shm = WaylandRegistryBind<wl_shm>(registry, id, &wl_shm_interface, 1);
display->SetShm(shm);
} else if (iface.EqualsLiteral("zwp_idle_inhibit_manager_v1")) {
auto* idle_inhibit_manager =
WaylandRegistryBind<zwp_idle_inhibit_manager_v1>(
registry, id, &zwp_idle_inhibit_manager_v1_interface, 1);
display->SetIdleInhibitManager(idle_inhibit_manager);
} else if (iface.EqualsLiteral("zwp_relative_pointer_manager_v1")) {
auto* relative_pointer_manager =
WaylandRegistryBind<zwp_relative_pointer_manager_v1>(
registry, id, &zwp_relative_pointer_manager_v1_interface, 1);
display->SetRelativePointerManager(relative_pointer_manager);
} else if (iface.EqualsLiteral("zwp_pointer_constraints_v1")) {
auto* pointer_constraints = WaylandRegistryBind<zwp_pointer_constraints_v1>(
registry, id, &zwp_pointer_constraints_v1_interface, 1);
display->SetPointerConstraints(pointer_constraints);
} else if (iface.EqualsLiteral("wl_compositor")) {
// Requested wl_compositor version 4 as we need wl_surface_damage_buffer().
auto* compositor = WaylandRegistryBind<wl_compositor>(
registry, id, &wl_compositor_interface, 4);
display->SetCompositor(compositor);
} else if (iface.EqualsLiteral("wl_subcompositor")) {
auto* subcompositor = WaylandRegistryBind<wl_subcompositor>(
registry, id, &wl_subcompositor_interface, 1);
display->SetSubcompositor(subcompositor);
} else if (iface.EqualsLiteral("wp_viewporter")) {
auto* viewporter = WaylandRegistryBind<wp_viewporter>(
registry, id, &wp_viewporter_interface, 1);
display->SetViewporter(viewporter);
} else if (iface.EqualsLiteral("zwp_linux_dmabuf_v1") && version > 2) {
auto* dmabuf = WaylandRegistryBind<zwp_linux_dmabuf_v1>(
registry, id, &zwp_linux_dmabuf_v1_interface, 3);
display->SetDmabuf(dmabuf);
} else if (iface.EqualsLiteral("xdg_activation_v1")) {
auto* activation = WaylandRegistryBind<xdg_activation_v1>(
registry, id, &xdg_activation_v1_interface, 1);
display->SetXdgActivation(activation);
} else if (iface.EqualsLiteral("wl_seat")) {
// Install keyboard handlers for main thread only
auto* seat =
WaylandRegistryBind<wl_seat>(registry, id, &wl_seat_interface, 1);
KeymapWrapper::SetSeat(seat, id);
} else if (iface.EqualsLiteral("wp_fractional_scale_manager_v1")) {
auto* manager = WaylandRegistryBind<wp_fractional_scale_manager_v1>(
registry, id, &wp_fractional_scale_manager_v1_interface, 1);
display->SetFractionalScaleManager(manager);
} else if (iface.EqualsLiteral("gtk_primary_selection_device_manager") ||
iface.EqualsLiteral("zwp_primary_selection_device_manager_v1")) {
display->EnablePrimarySelection();
}
}
static void global_registry_remover(void* data, wl_registry* registry,
uint32_t id) {
KeymapWrapper::ClearSeat(id);
}
static const struct wl_registry_listener registry_listener = {
global_registry_handler, global_registry_remover};
nsWaylandDisplay::~nsWaylandDisplay() {}
static void WlLogHandler(const char* format, va_list args) {
char error[1000];
VsprintfLiteral(error, format, args);
gfxCriticalNote << "Wayland protocol error: " << error;
// See Bug 1826583 and Bug 1844653 for reference.
// "warning: queue %p destroyed while proxies still attached" and variants
// like "zwp_linux_dmabuf_feedback_v1@%d still attached" are exceptions on
// Wayland and non-fatal. They are triggered in certain versions of Mesa or
// the proprietary Nvidia driver and we don't want to crash because of them.
if (strstr(error, "still attached")) {
return;
}
MOZ_CRASH_UNSAFE(error);
}
nsWaylandDisplay::nsWaylandDisplay(wl_display* aDisplay)
: mThreadId(PR_GetCurrentThread()), mDisplay(aDisplay) {
// GTK sets the log handler on display creation, thus we overwrite it here
// in a similar fashion
wl_log_set_handler_client(WlLogHandler);
mRegistry = wl_display_get_registry(mDisplay);
wl_registry_add_listener(mRegistry, ®istry_listener, this);
wl_display_roundtrip(mDisplay);
wl_display_roundtrip(mDisplay);
// Check we have critical Wayland interfaces.
// Missing ones indicates a compositor bug and we can't continue.
MOZ_DIAGNOSTIC_ASSERT(GetShm(), "We're missing shm interface!");
MOZ_DIAGNOSTIC_ASSERT(GetCompositor(), "We're missing compositor interface!");
MOZ_DIAGNOSTIC_ASSERT(GetSubcompositor(),
"We're missing subcompositor interface!");
}
} // namespace mozilla::widget
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