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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/exo/wayland/zcr_extended_drag.h"
#include <extended-drag-unstable-v1-server-protocol.h>
#include <wayland-server-core.h>
#include <wayland-server-protocol-core.h>
#include <cstdint>
#include "base/memory/raw_ptr.h"
#include "base/notreached.h"
#include "components/exo/data_offer.h"
#include "components/exo/data_source.h"
#include "components/exo/display.h"
#include "components/exo/extended_drag_offer.h"
#include "components/exo/extended_drag_source.h"
#include "components/exo/surface.h"
#include "components/exo/wayland/server_util.h"
#include "ui/gfx/geometry/vector2d.h"
namespace exo {
namespace wayland {
namespace {
////////////////////////////////////////////////////////////////////////////////
// zcr_extended_drag_source interface:
class ZcrExtendedDragSourceDelegate : public ExtendedDragSource::Delegate {
public:
ZcrExtendedDragSourceDelegate(wl_resource* resource, uint32_t settings)
: resource_(resource), settings_(settings) {}
ZcrExtendedDragSourceDelegate(const ZcrExtendedDragSourceDelegate&) = delete;
ZcrExtendedDragSourceDelegate& operator=(
const ZcrExtendedDragSourceDelegate&) = delete;
~ZcrExtendedDragSourceDelegate() override = default;
// ExtendedDragSource::Delegate:
bool ShouldAllowDropAnywhere() const override {
return settings_ & ZCR_EXTENDED_DRAG_V1_OPTIONS_ALLOW_DROP_NO_TARGET;
}
bool ShouldLockCursor() const override {
return settings_ & ZCR_EXTENDED_DRAG_V1_OPTIONS_LOCK_CURSOR;
}
void OnDataSourceDestroying() override { delete this; }
private:
const raw_ptr<wl_resource> resource_;
const uint32_t settings_;
};
void extended_drag_source_destroy(wl_client* client, wl_resource* resource) {
wl_resource_destroy(resource);
}
void extended_drag_source_drag(wl_client* client,
wl_resource* resource,
wl_resource* surface_resource,
int32_t x_offset,
int32_t y_offset) {
Surface* surface =
surface_resource ? GetUserDataAs<Surface>(surface_resource) : nullptr;
gfx::Vector2d offset{x_offset, y_offset};
GetUserDataAs<ExtendedDragSource>(resource)->Drag(surface, offset);
}
const struct zcr_extended_drag_source_v1_interface
extended_drag_source_implementation = {extended_drag_source_destroy,
extended_drag_source_drag};
////////////////////////////////////////////////////////////////////////////////
// zcr_extended_drag_offer interface:
class ZcrExtendedOfferDelegate : public ExtendedDragOffer::Delegate {
public:
explicit ZcrExtendedOfferDelegate(wl_resource* resource)
: resource_(resource) {
DCHECK(resource_);
}
ZcrExtendedOfferDelegate(const ZcrExtendedOfferDelegate&) = delete;
ZcrExtendedOfferDelegate& operator=(const ZcrExtendedOfferDelegate&) = delete;
~ZcrExtendedOfferDelegate() override = default;
// ExtendedDragOffer::Delegate:
void OnDataOfferDestroying() override { delete this; }
private:
const raw_ptr<wl_resource> resource_;
};
void extended_drag_offer_destroy(wl_client* client, wl_resource* resource) {
wl_resource_destroy(resource);
}
void extended_drag_offer_swallow(wl_client* client,
wl_resource* resource,
uint32_t serial,
const char* mime_type) {
// [deprecatd]: No need to implement this.
}
void extended_drag_offer_unswallow(wl_client* client,
wl_resource* resource,
uint32_t serial,
const char* mime_type,
int32_t x_offset,
int32_t y_offset) {
// [deprecatd]: No need to implement this.
}
const struct zcr_extended_drag_offer_v1_interface
extended_drag_offer_implementation = {extended_drag_offer_destroy,
extended_drag_offer_swallow,
extended_drag_offer_unswallow};
////////////////////////////////////////////////////////////////////////////////
// zcr_extended_drag interface:
void extended_drag_get_extended_drag_source(wl_client* client,
wl_resource* resource,
uint32_t id,
wl_resource* data_source_resource,
uint32_t settings) {
DataSource* source = GetUserDataAs<DataSource>(data_source_resource);
wl_resource* extended_drag_source_resource =
wl_resource_create(client, &zcr_extended_drag_source_v1_interface,
wl_resource_get_version(resource), id);
SetImplementation(extended_drag_source_resource,
&extended_drag_source_implementation,
std::make_unique<ExtendedDragSource>(
source, new ZcrExtendedDragSourceDelegate(
extended_drag_source_resource, settings)));
}
void extended_drag_get_extended_drag_offer(wl_client* client,
wl_resource* resource,
uint32_t id,
wl_resource* data_offer_resource) {
DataOffer* offer = GetUserDataAs<DataOffer>(data_offer_resource);
wl_resource* extended_drag_offer_resource =
wl_resource_create(client, &zcr_extended_drag_offer_v1_interface,
wl_resource_get_version(resource), id);
SetImplementation(
extended_drag_offer_resource, &extended_drag_offer_implementation,
std::make_unique<ExtendedDragOffer>(
offer, new ZcrExtendedOfferDelegate(extended_drag_offer_resource)));
}
const struct zcr_extended_drag_v1_interface extended_drag_implementation = {
extended_drag_get_extended_drag_source,
extended_drag_get_extended_drag_offer};
} // namespace
void bind_extended_drag(wl_client* client,
void* data,
uint32_t version,
uint32_t id) {
wl_resource* resource =
wl_resource_create(client, &zcr_extended_drag_v1_interface, version, id);
wl_resource_set_implementation(resource, &extended_drag_implementation, data,
nullptr);
}
} // namespace wayland
} // namespace exo
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