blob: d579b4bc2e73de99201c965139b5706a9ce5f93c [file] [log] [blame]
// Copyright 2019 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 "components/exo/wayland/zwp_relative_pointer_manager.h"
#include <relative-pointer-unstable-v1-server-protocol.h>
#include <wayland-server-core.h>
#include <wayland-server-protocol-core.h>
#include <memory>
#include "components/exo/pointer.h"
#include "components/exo/relative_pointer_delegate.h"
#include "components/exo/wayland/server_util.h"
namespace exo {
namespace wayland {
namespace {
////////////////////////////////////////////////////////////////////////////////
// relative_pointer_v1 interface:
class WaylandRelativePointerDelegate : public RelativePointerDelegate {
public:
WaylandRelativePointerDelegate(wl_resource* resource, Pointer* pointer)
: resource_(resource), pointer_(pointer) {
pointer->RegisterRelativePointerDelegate(this);
// TODO(b/124059008): See below, when requesting relative motion we will
// also try to gain pointer lock even though the client hasn't asked for it
// yet...
pointer_->EnablePointerCapture();
}
~WaylandRelativePointerDelegate() override {
if (pointer_) {
// TODO(b/124059008): For whatever reason, exo conflates pointer capture
// and relative motion. Normally in wayland, removing the relative pointer
// would not break pointer capture, but in exo that is the case.
pointer_->DisablePointerCapture();
pointer_->UnregisterRelativePointerDelegate(this);
}
}
void OnPointerDestroying(Pointer* pointer) override { pointer_ = nullptr; }
void OnPointerRelativeMotion(base::TimeTicks time_stamp,
const gfx::PointF& relativeMotion) override {
zwp_relative_pointer_v1_send_relative_motion(
resource_, // resource
0, // utime_hi
TimeTicksToMilliseconds(time_stamp), // utime_lo
wl_fixed_from_double(relativeMotion.x()), // dx
wl_fixed_from_double(relativeMotion.y()), // dy
wl_fixed_from_double(relativeMotion.x()), // dx_unaccel
wl_fixed_from_double(relativeMotion.y())); // dy_unaccel
}
private:
wl_resource* const resource_;
Pointer* pointer_;
DISALLOW_COPY_AND_ASSIGN(WaylandRelativePointerDelegate);
};
void relative_pointer_destroy(wl_client* client, wl_resource* resource) {
wl_resource_destroy(resource);
}
const struct zwp_relative_pointer_v1_interface relative_pointer_impl = {
relative_pointer_destroy};
////////////////////////////////////////////////////////////////////////////////
// relative_pointer_manager_v1 interface:
void relative_pointer_manager_destroy(wl_client* client,
wl_resource* resource) {
wl_resource_destroy(resource);
}
void relative_pointer_manager_get_relative_pointer(
wl_client* client,
wl_resource* resource,
uint32_t id,
wl_resource* pointer_resource) {
Pointer* pointer = GetUserDataAs<Pointer>(pointer_resource);
wl_resource* relative_pointer_resource =
wl_resource_create(client, &zwp_relative_pointer_v1_interface, 1, id);
SetImplementation(relative_pointer_resource, &relative_pointer_impl,
std::make_unique<WaylandRelativePointerDelegate>(
relative_pointer_resource, pointer));
}
const struct zwp_relative_pointer_manager_v1_interface
relative_pointer_manager_impl = {
relative_pointer_manager_destroy,
relative_pointer_manager_get_relative_pointer};
} // namespace
void bind_relative_pointer_manager(wl_client* client,
void* data,
uint32_t version,
uint32_t id) {
wl_resource* resource = wl_resource_create(
client, &zwp_relative_pointer_manager_v1_interface, version, id);
wl_resource_set_implementation(resource, &relative_pointer_manager_impl, data,
nullptr);
}
} // namespace wayland
} // namespace exo