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	Merge pull request #1423 from emersion/data-control
Implement data-control-unstable-v1
This commit is contained in:
		
						commit
						e61ea7706b
					
				
					 8 changed files with 705 additions and 7 deletions
				
			
		|  | @ -3,6 +3,7 @@ install_headers( | |||
| 	'wlr_buffer.h', | ||||
| 	'wlr_compositor.h', | ||||
| 	'wlr_cursor.h', | ||||
| 	'wlr_data_control_v1.h', | ||||
| 	'wlr_data_device.h', | ||||
| 	'wlr_export_dmabuf_v1.h', | ||||
| 	'wlr_foreign_toplevel_management_v1.h', | ||||
|  | @ -22,8 +23,8 @@ install_headers( | |||
| 	'wlr_output_damage.h', | ||||
| 	'wlr_output_layout.h', | ||||
| 	'wlr_output.h', | ||||
| 	'wlr_pointer.h', | ||||
| 	'wlr_pointer_constraints_v1.h', | ||||
| 	'wlr_pointer.h', | ||||
| 	'wlr_presentation_time.h', | ||||
| 	'wlr_primary_selection.h', | ||||
| 	'wlr_region.h', | ||||
|  |  | |||
							
								
								
									
										48
									
								
								include/wlr/types/wlr_data_control_v1.h
									
										
									
									
									
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								include/wlr/types/wlr_data_control_v1.h
									
										
									
									
									
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							|  | @ -0,0 +1,48 @@ | |||
| /*
 | ||||
|  * This an unstable interface of wlroots. No guarantees are made regarding the | ||||
|  * future consistency of this API. | ||||
|  */ | ||||
| #ifndef WLR_USE_UNSTABLE | ||||
| #error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features" | ||||
| #endif | ||||
| 
 | ||||
| #ifndef WLR_TYPES_WLR_DATA_CONTROL_V1_H | ||||
| #define WLR_TYPES_WLR_DATA_CONTROL_V1_H | ||||
| 
 | ||||
| #include <wayland-server.h> | ||||
| #include <wlr/types/wlr_seat.h> | ||||
| 
 | ||||
| struct wlr_data_control_manager_v1 { | ||||
| 	struct wl_global *global; | ||||
| 	struct wl_list resources; // wl_resource_get_link
 | ||||
| 	struct wl_list devices; // wlr_data_control_device_v1::link
 | ||||
| 
 | ||||
| 	struct { | ||||
| 		struct wl_signal destroy; | ||||
| 		struct wl_signal new_device; // wlr_data_control_device_v1
 | ||||
| 	} events; | ||||
| 
 | ||||
| 	struct wl_listener display_destroy; | ||||
| }; | ||||
| 
 | ||||
| struct wlr_data_control_device_v1 { | ||||
| 	struct wl_resource *resource; | ||||
| 	struct wlr_data_control_manager_v1 *manager; | ||||
| 	struct wl_list link; // wlr_data_control_manager_v1::devices
 | ||||
| 
 | ||||
| 	struct wlr_seat *seat; | ||||
| 	struct wl_resource *selection_offer_resource; // current selection offer
 | ||||
| 
 | ||||
| 	struct wl_listener seat_destroy; | ||||
| 	struct wl_listener seat_selection; | ||||
| }; | ||||
| 
 | ||||
| struct wlr_data_control_manager_v1 *wlr_data_control_manager_v1_create( | ||||
| 	struct wl_display *display); | ||||
| void wlr_data_control_manager_v1_destroy( | ||||
| 	struct wlr_data_control_manager_v1 *manager); | ||||
| 
 | ||||
| void wlr_data_control_device_v1_destroy( | ||||
| 	struct wlr_data_control_device_v1 *device); | ||||
| 
 | ||||
| #endif | ||||
|  | @ -29,6 +29,7 @@ protocols = [ | |||
| 	'server-decoration.xml', | ||||
| 	'text-input-unstable-v3.xml', | ||||
| 	'virtual-keyboard-unstable-v1.xml', | ||||
| 	'wlr-data-control-unstable-v1.xml', | ||||
| 	'wlr-export-dmabuf-unstable-v1.xml', | ||||
| 	'wlr-gamma-control-unstable-v1.xml', | ||||
| 	'wlr-foreign-toplevel-management-unstable-v1.xml', | ||||
|  |  | |||
							
								
								
									
										224
									
								
								protocol/wlr-data-control-unstable-v1.xml
									
										
									
									
									
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								protocol/wlr-data-control-unstable-v1.xml
									
										
									
									
									
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							|  | @ -0,0 +1,224 @@ | |||
| <?xml version="1.0" encoding="UTF-8"?> | ||||
| <protocol name="wlr_data_control_unstable_v1"> | ||||
|   <copyright> | ||||
|     Copyright © 2018 Simon Ser | ||||
| 
 | ||||
|     Permission to use, copy, modify, distribute, and sell this | ||||
|     software and its documentation for any purpose is hereby granted | ||||
|     without fee, provided that the above copyright notice appear in | ||||
|     all copies and that both that copyright notice and this permission | ||||
|     notice appear in supporting documentation, and that the name of | ||||
|     the copyright holders not be used in advertising or publicity | ||||
|     pertaining to distribution of the software without specific, | ||||
|     written prior permission.  The copyright holders make no | ||||
|     representations about the suitability of this software for any | ||||
|     purpose.  It is provided "as is" without express or implied | ||||
|     warranty. | ||||
| 
 | ||||
|     THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS | ||||
|     SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND | ||||
|     FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY | ||||
|     SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | ||||
|     WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN | ||||
|     AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | ||||
|     ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF | ||||
|     THIS SOFTWARE. | ||||
|   </copyright> | ||||
| 
 | ||||
|   <description summary="control data devices"> | ||||
|     This protocol allows a privileged client to control data devices. In | ||||
|     particular, the client will be able to manage the current selection and take | ||||
|     the role of a clipboard manager. | ||||
| 
 | ||||
|     Warning! The protocol described in this file is experimental and | ||||
|     backward incompatible changes may be made. Backward compatible changes | ||||
|     may be added together with the corresponding interface version bump. | ||||
|     Backward incompatible changes are done by bumping the version number in | ||||
|     the protocol and interface names and resetting the interface version. | ||||
|     Once the protocol is to be declared stable, the 'z' prefix and the | ||||
|     version number in the protocol and interface names are removed and the | ||||
|     interface version number is reset. | ||||
|   </description> | ||||
| 
 | ||||
|   <interface name="zwlr_data_control_manager_v1" version="1"> | ||||
|     <description summary="manager to control data devices"> | ||||
|       This interface is a manager that allows creating per-seat data device | ||||
|       controls. | ||||
|     </description> | ||||
| 
 | ||||
|     <request name="create_data_source"> | ||||
|       <description summary="create a new data source"> | ||||
|         Create a new data source. | ||||
|       </description> | ||||
|       <arg name="id" type="new_id" interface="zwlr_data_control_source_v1" | ||||
|         summary="data source to create"/> | ||||
|     </request> | ||||
| 
 | ||||
|     <request name="get_data_device"> | ||||
|       <description summary="get a data device for a seat"> | ||||
|         Create a data device that can be used to manage a seat's selection. | ||||
|       </description> | ||||
|       <arg name="id" type="new_id" interface="zwlr_data_control_device_v1"/> | ||||
|       <arg name="seat" type="object" interface="wl_seat"/> | ||||
|     </request> | ||||
| 
 | ||||
|     <request name="destroy" type="destructor"> | ||||
|       <description summary="destroy the manager"> | ||||
|         All objects created by the manager will still remain valid, until their | ||||
|         appropriate destroy request has been called. | ||||
|       </description> | ||||
|     </request> | ||||
|   </interface> | ||||
| 
 | ||||
|   <interface name="zwlr_data_control_device_v1" version="1"> | ||||
|     <description summary="manage a data device for a seat"> | ||||
|       This interface allows a client to manage a seat's selection. | ||||
| 
 | ||||
|       When the seat is destroyed, this object becomes inert. | ||||
|     </description> | ||||
| 
 | ||||
|     <request name="set_selection"> | ||||
|       <description summary="copy data to the selection"> | ||||
|         All objects created by the device will still remain valid, until their | ||||
|         appropriate destroy request has been called. | ||||
|       </description> | ||||
|       <arg name="source" type="object" interface="zwlr_data_control_source_v1" | ||||
|         allow-null="true"/> | ||||
|     </request> | ||||
| 
 | ||||
|     <request name="destroy" type="destructor"> | ||||
|       <description summary="destroy this data device"> | ||||
|         Destroys the data device object. | ||||
|       </description> | ||||
|     </request> | ||||
| 
 | ||||
|     <event name="data_offer"> | ||||
|       <description summary="introduce a new wlr_data_control_offer"> | ||||
|         The data_offer event introduces a new wlr_data_control_offer object, | ||||
|         which will subsequently be used in the wlr_data_control_device.selection | ||||
|         event. Immediately following the wlr_data_control_device.data_offer | ||||
|         event, the new data_offer object will send out | ||||
|         wlr_data_control_offer.offer events to describe the MIME types it | ||||
|         offers. | ||||
| 
 | ||||
|         This event replaces the previous data offer, which should be destroyed | ||||
|         by the client. | ||||
|       </description> | ||||
|       <arg name="id" type="new_id" interface="zwlr_data_control_offer_v1"/> | ||||
|     </event> | ||||
| 
 | ||||
|     <event name="selection"> | ||||
|       <description summary="introduce a new wlr_data_control_offer"> | ||||
|         The selection event is sent out to notify the client of a new | ||||
|         wlr_data_control_offer for the selection for this device. The | ||||
|         wlr_data_control_device.data_offer and the wlr_data_control_offer.offer | ||||
|         events are sent out immediately before this event to introduce the data | ||||
|         offer object. The selection event is sent to a client when a new | ||||
|         selection is set. The wlr_data_control_offer is valid until a new | ||||
|         wlr_data_control_offer or NULL is received. The client must destroy the | ||||
|         previous selection wlr_data_control_offer, if any, upon receiving this | ||||
|         event. | ||||
|       </description> | ||||
|       <arg name="id" type="object" interface="zwlr_data_control_offer_v1" | ||||
|         allow-null="true"/> | ||||
|     </event> | ||||
| 
 | ||||
|     <event name="finished"> | ||||
|       <description summary="this data control is no longer valid"> | ||||
|         This data control object is no longer valid and should be destroyed by | ||||
|         the client. | ||||
|       </description> | ||||
|     </event> | ||||
|   </interface> | ||||
| 
 | ||||
|   <interface name="zwlr_data_control_source_v1" version="1"> | ||||
|     <description summary="offer to transfer data"> | ||||
|       The wlr_data_control_source object is the source side of a | ||||
|       wlr_data_control_offer. It is created by the source client in a data | ||||
|       transfer and provides a way to describe the offered data and a way to | ||||
|       respond to requests to transfer the data. | ||||
|     </description> | ||||
| 
 | ||||
|     <enum name="error"> | ||||
|       <entry name="invalid_offer" value="1" | ||||
|         summary="offer sent after wlr_data_control_device.set_selection"/> | ||||
|     </enum> | ||||
| 
 | ||||
|     <request name="offer"> | ||||
|       <description summary="add an offered MIME type"> | ||||
|         This request adds a MIME type to the set of MIME types advertised to | ||||
|         targets. Can be called several times to offer multiple types. | ||||
| 
 | ||||
|         Calling this after wlr_data_control_device.set_selection is a protocol | ||||
|         error. | ||||
|       </description> | ||||
|       <arg name="mime_type" type="string" | ||||
|         summary="MIME type offered by the data source"/> | ||||
|     </request> | ||||
| 
 | ||||
|     <request name="destroy" type="destructor"> | ||||
|       <description summary="destroy this source"> | ||||
|         Destroys the data source object. | ||||
|       </description> | ||||
|     </request> | ||||
| 
 | ||||
|     <event name="send"> | ||||
|       <description summary="send the data"> | ||||
|         Request for data from the client. Send the data as the specified MIME | ||||
|         type over the passed file descriptor, then close it. | ||||
|       </description> | ||||
|       <arg name="mime_type" type="string" summary="MIME type for the data"/> | ||||
|       <arg name="fd" type="fd" summary="file descriptor for the data"/> | ||||
|     </event> | ||||
| 
 | ||||
|     <event name="cancelled"> | ||||
|       <description summary="selection was cancelled"> | ||||
|         This data source is no longer valid. The data source has been replaced | ||||
|         by another data source. | ||||
| 
 | ||||
|         The client should clean up and destroy this data source. | ||||
|       </description> | ||||
|     </event> | ||||
|   </interface> | ||||
| 
 | ||||
|   <interface name="zwlr_data_control_offer_v1" version="1"> | ||||
|     <description summary="offer to transfer data"> | ||||
|       A wlr_data_control_offer represents a piece of data offered for transfer | ||||
|       by another client (the source client). The offer describes the different | ||||
|       MIME types that the data can be converted to and provides the mechanism | ||||
|       for transferring the data directly from the source client. | ||||
|     </description> | ||||
| 
 | ||||
|     <request name="receive"> | ||||
|       <description summary="request that the data is transferred"> | ||||
|         To transfer the offered data, the client issues this request and | ||||
|         indicates the MIME type it wants to receive. The transfer happens | ||||
|         through the passed file descriptor (typically created with the pipe | ||||
|         system call). The source client writes the data in the MIME type | ||||
|         representation requested and then closes the file descriptor. | ||||
| 
 | ||||
|         The receiving client reads from the read end of the pipe until EOF and | ||||
|         then closes its end, at which point the transfer is complete. | ||||
| 
 | ||||
|         This request may happen multiple times for different MIME types. | ||||
|       </description> | ||||
|       <arg name="mime_type" type="string" | ||||
|         summary="MIME type desired by receiver"/> | ||||
|       <arg name="fd" type="fd" summary="file descriptor for data transfer"/> | ||||
|     </request> | ||||
| 
 | ||||
|     <request name="destroy" type="destructor"> | ||||
|       <description summary="destroy this offer"> | ||||
|         Destroys the data offer object. | ||||
|       </description> | ||||
|     </request> | ||||
| 
 | ||||
|     <event name="offer"> | ||||
|       <description summary="advertise offered MIME type"> | ||||
|         Sent immediately after creating the wlr_data_control_offer object. | ||||
|         One event per offered MIME type. | ||||
|       </description> | ||||
|       <arg name="mime_type" type="string" summary="offered MIME type"/> | ||||
|     </event> | ||||
|   </interface> | ||||
| </protocol> | ||||
|  | @ -7,24 +7,25 @@ | |||
| #include <wlr/types/wlr_box.h> | ||||
| #include <wlr/types/wlr_compositor.h> | ||||
| #include <wlr/types/wlr_cursor.h> | ||||
| #include <wlr/types/wlr_data_control_v1.h> | ||||
| #include <wlr/types/wlr_export_dmabuf_v1.h> | ||||
| #include <wlr/types/wlr_gamma_control.h> | ||||
| #include <wlr/types/wlr_gamma_control_v1.h> | ||||
| #include <wlr/types/wlr_gamma_control.h> | ||||
| #include <wlr/types/wlr_gtk_primary_selection.h> | ||||
| #include <wlr/types/wlr_idle_inhibit_v1.h> | ||||
| #include <wlr/types/wlr_idle.h> | ||||
| #include <wlr/types/wlr_input_inhibitor.h> | ||||
| #include <wlr/types/wlr_layer_shell_v1.h> | ||||
| #include <wlr/types/wlr_output_layout.h> | ||||
| #include <wlr/types/wlr_pointer_constraints_v1.h> | ||||
| #include <wlr/types/wlr_gtk_primary_selection.h> | ||||
| #include <wlr/types/wlr_server_decoration.h> | ||||
| #include <wlr/types/wlr_tablet_v2.h> | ||||
| #include <wlr/types/wlr_wl_shell.h> | ||||
| #include <wlr/types/wlr_xcursor_manager.h> | ||||
| #include <wlr/types/wlr_xdg_output_v1.h> | ||||
| #include <wlr/types/wlr_xdg_output_v1.h> | ||||
| #include <wlr/types/wlr_xdg_shell_v6.h> | ||||
| #include <wlr/types/wlr_xdg_shell.h> | ||||
| #include <wlr/types/wlr_xdg_output_v1.h> | ||||
| #include <wlr/types/wlr_tablet_v2.h> | ||||
| #include <wlr/util/log.h> | ||||
| #include "rootston/layers.h" | ||||
| #include "rootston/seat.h" | ||||
|  | @ -1084,6 +1085,8 @@ struct roots_desktop *desktop_create(struct roots_server *server, | |||
| 	desktop->relative_pointer_manager = | ||||
| 		wlr_relative_pointer_manager_v1_create(server->wl_display); | ||||
| 
 | ||||
| 	wlr_data_control_manager_v1_create(server->wl_display); | ||||
| 
 | ||||
| 	return desktop; | ||||
| } | ||||
| 
 | ||||
|  |  | |||
|  | @ -122,6 +122,9 @@ static void seat_client_selection_source_destroy( | |||
| 		wl_container_of(listener, seat, selection_source_destroy); | ||||
| 	struct wlr_seat_client *seat_client = seat->keyboard_state.focused_client; | ||||
| 
 | ||||
| 	wl_list_remove(&seat->selection_source_destroy.link); | ||||
| 	seat->selection_source = NULL; | ||||
| 
 | ||||
| 	if (seat_client && seat->keyboard_state.focused_surface) { | ||||
| 		struct wl_resource *resource; | ||||
| 		wl_resource_for_each(resource, &seat_client->data_devices) { | ||||
|  | @ -129,8 +132,6 @@ static void seat_client_selection_source_destroy( | |||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	seat->selection_source = NULL; | ||||
| 
 | ||||
| 	wlr_signal_emit_safe(&seat->events.selection, seat); | ||||
| } | ||||
| 
 | ||||
|  |  | |||
|  | @ -27,6 +27,7 @@ lib_wlr_types = static_library( | |||
| 		'wlr_buffer.c', | ||||
| 		'wlr_compositor.c', | ||||
| 		'wlr_cursor.c', | ||||
| 		'wlr_data_control_v1.c', | ||||
| 		'wlr_export_dmabuf_v1.c', | ||||
| 		'wlr_foreign_toplevel_management_v1.c', | ||||
| 		'wlr_gamma_control_v1.c', | ||||
|  |  | |||
							
								
								
									
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								types/wlr_data_control_v1.c
									
										
									
									
									
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								types/wlr_data_control_v1.c
									
										
									
									
									
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							|  | @ -0,0 +1,419 @@ | |||
| #define _POSIX_C_SOURCE 200809L | ||||
| #include <assert.h> | ||||
| #include <stdlib.h> | ||||
| #include <string.h> | ||||
| #include <unistd.h> | ||||
| #include <wlr/types/wlr_data_control_v1.h> | ||||
| #include <wlr/types/wlr_data_device.h> | ||||
| #include "util/signal.h" | ||||
| #include "wlr-data-control-unstable-v1-protocol.h" | ||||
| 
 | ||||
| #define DATA_CONTROL_MANAGER_VERSION 1 | ||||
| 
 | ||||
| struct client_data_source { | ||||
| 	struct wlr_data_source source; | ||||
| 	struct wl_resource *resource; | ||||
| 	bool finalized; | ||||
| }; | ||||
| 
 | ||||
| static const struct wlr_data_source_impl client_source_impl; | ||||
| 
 | ||||
| static struct client_data_source * | ||||
| 		client_data_source_from_source(struct wlr_data_source *wlr_source) { | ||||
| 	assert(wlr_source->impl == &client_source_impl); | ||||
| 	return (struct client_data_source *)wlr_source; | ||||
| } | ||||
| 
 | ||||
| static void client_source_send(struct wlr_data_source *wlr_source, | ||||
| 		const char *mime_type, int fd) { | ||||
| 	struct client_data_source *source = | ||||
| 		client_data_source_from_source(wlr_source); | ||||
| 	zwlr_data_control_source_v1_send_send(source->resource, mime_type, fd); | ||||
| 	close(fd); | ||||
| } | ||||
| 
 | ||||
| static void client_source_cancel(struct wlr_data_source *wlr_source) { | ||||
| 	struct client_data_source *source = | ||||
| 		client_data_source_from_source(wlr_source); | ||||
| 	zwlr_data_control_source_v1_send_cancelled(source->resource); | ||||
| 	wlr_data_source_finish(wlr_source); | ||||
| 	// Make the resource inert
 | ||||
| 	wl_resource_set_user_data(source->resource, NULL); | ||||
| 	free(source); | ||||
| } | ||||
| 
 | ||||
| static const struct wlr_data_source_impl client_source_impl = { | ||||
| 	.send = client_source_send, | ||||
| 	.cancel = client_source_cancel, | ||||
| }; | ||||
| 
 | ||||
| static const struct zwlr_data_control_source_v1_interface source_impl; | ||||
| 
 | ||||
| static struct client_data_source *source_from_resource( | ||||
| 		struct wl_resource *resource) { | ||||
| 	assert(wl_resource_instance_of(resource, | ||||
| 		&zwlr_data_control_source_v1_interface, &source_impl)); | ||||
| 	return wl_resource_get_user_data(resource); | ||||
| } | ||||
| 
 | ||||
| static void source_handle_offer(struct wl_client *client, | ||||
| 		struct wl_resource *resource, const char *mime_type) { | ||||
| 	struct client_data_source *source = source_from_resource(resource); | ||||
| 	if (source == NULL) { | ||||
| 		return; | ||||
| 	} | ||||
| 
 | ||||
| 	if (source->finalized) { | ||||
| 		wl_resource_post_error(resource, | ||||
| 			ZWLR_DATA_CONTROL_SOURCE_V1_ERROR_INVALID_OFFER, | ||||
| 			"cannot mutate offer after set_selection"); | ||||
| 		return; | ||||
| 	} | ||||
| 
 | ||||
| 	char *dup_mime_type = strdup(mime_type); | ||||
| 	if (dup_mime_type == NULL) { | ||||
| 		wl_resource_post_no_memory(resource); | ||||
| 		return; | ||||
| 	} | ||||
| 
 | ||||
| 	char **p = wl_array_add(&source->source.mime_types, sizeof(char *)); | ||||
| 	if (p == NULL) { | ||||
| 		free(dup_mime_type); | ||||
| 		wl_resource_post_no_memory(resource); | ||||
| 		return; | ||||
| 	} | ||||
| 
 | ||||
| 	*p = dup_mime_type; | ||||
| } | ||||
| 
 | ||||
| static void source_handle_destroy(struct wl_client *client, | ||||
| 		struct wl_resource *resource) { | ||||
| 	wl_resource_destroy(resource); | ||||
| } | ||||
| 
 | ||||
| static const struct zwlr_data_control_source_v1_interface source_impl = { | ||||
| 	.offer = source_handle_offer, | ||||
| 	.destroy = source_handle_destroy, | ||||
| }; | ||||
| 
 | ||||
| static void source_handle_resource_destroy(struct wl_resource *resource) { | ||||
| 	struct client_data_source *source = source_from_resource(resource); | ||||
| 	if (source == NULL) { | ||||
| 		return; | ||||
| 	} | ||||
| 	wlr_data_source_cancel(&source->source); | ||||
| } | ||||
| 
 | ||||
| 
 | ||||
| static const struct zwlr_data_control_offer_v1_interface offer_impl; | ||||
| 
 | ||||
| static struct wlr_data_control_device_v1 *control_from_offer_resource( | ||||
| 		struct wl_resource *resource) { | ||||
| 	assert(wl_resource_instance_of(resource, | ||||
| 		&zwlr_data_control_offer_v1_interface, &offer_impl)); | ||||
| 	return wl_resource_get_user_data(resource); | ||||
| } | ||||
| 
 | ||||
| static void offer_handle_receive(struct wl_client *client, | ||||
| 		struct wl_resource *resource, const char *mime_type, int fd) { | ||||
| 	struct wlr_data_control_device_v1 *device = control_from_offer_resource(resource); | ||||
| 	if (device == NULL || device->seat->selection_source == NULL) { | ||||
| 		close(fd); | ||||
| 		return; | ||||
| 	} | ||||
| 	wlr_data_source_send(device->seat->selection_source, mime_type, fd); | ||||
| } | ||||
| 
 | ||||
| static void offer_handle_destroy(struct wl_client *client, | ||||
| 		struct wl_resource *resource) { | ||||
| 	wl_resource_destroy(resource); | ||||
| } | ||||
| 
 | ||||
| static const struct zwlr_data_control_offer_v1_interface offer_impl = { | ||||
| 	.receive = offer_handle_receive, | ||||
| 	.destroy = offer_handle_destroy, | ||||
| }; | ||||
| 
 | ||||
| static void offer_handle_resource_destroy(struct wl_resource *resource) { | ||||
| 	struct wlr_data_control_device_v1 *device = control_from_offer_resource(resource); | ||||
| 	if (device != NULL) { | ||||
| 		device->selection_offer_resource = NULL; | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| static struct wl_resource *create_offer(struct wlr_data_control_device_v1 *device, | ||||
| 		struct wlr_data_source *source) { | ||||
| 	struct wl_client *client = wl_resource_get_client(device->resource); | ||||
| 	uint32_t version = wl_resource_get_version(device->resource); | ||||
| 	struct wl_resource *resource = wl_resource_create(client, | ||||
| 		&zwlr_data_control_offer_v1_interface, version, 0); | ||||
| 	if (resource == NULL) { | ||||
| 		return NULL; | ||||
| 	} | ||||
| 	wl_resource_set_implementation(resource, &offer_impl, device, | ||||
| 		offer_handle_resource_destroy); | ||||
| 
 | ||||
| 	zwlr_data_control_device_v1_send_data_offer(device->resource, resource); | ||||
| 
 | ||||
| 	char **p; | ||||
| 	wl_array_for_each(p, &source->mime_types) { | ||||
| 		zwlr_data_control_offer_v1_send_offer(resource, *p); | ||||
| 	} | ||||
| 
 | ||||
| 	return resource; | ||||
| } | ||||
| 
 | ||||
| 
 | ||||
| static const struct zwlr_data_control_device_v1_interface control_impl; | ||||
| 
 | ||||
| static struct wlr_data_control_device_v1 *control_from_resource( | ||||
| 		struct wl_resource *resource) { | ||||
| 	assert(wl_resource_instance_of(resource, | ||||
| 		&zwlr_data_control_device_v1_interface, &control_impl)); | ||||
| 	return wl_resource_get_user_data(resource); | ||||
| } | ||||
| 
 | ||||
| static void control_handle_set_selection(struct wl_client *client, | ||||
| 		struct wl_resource *control_resource, | ||||
| 		struct wl_resource *source_resource) { | ||||
| 	struct wlr_data_control_device_v1 *device = | ||||
| 		control_from_resource(control_resource); | ||||
| 	struct client_data_source *source = source_from_resource(source_resource); | ||||
| 	if (device == NULL) { | ||||
| 		return; | ||||
| 	} | ||||
| 
 | ||||
| 	struct wlr_data_source *wlr_source = source ? &source->source : NULL; | ||||
| 	struct wl_display *display = wl_client_get_display(client); | ||||
| 	wlr_seat_set_selection(device->seat, wlr_source, | ||||
| 		wl_display_next_serial(display)); | ||||
| } | ||||
| 
 | ||||
| static void control_handle_destroy(struct wl_client *client, | ||||
| 		struct wl_resource *control_resource) { | ||||
| 	wl_resource_destroy(control_resource); | ||||
| } | ||||
| 
 | ||||
| static const struct zwlr_data_control_device_v1_interface control_impl = { | ||||
| 	.set_selection = control_handle_set_selection, | ||||
| 	.destroy = control_handle_destroy, | ||||
| }; | ||||
| 
 | ||||
| static void control_send_selection(struct wlr_data_control_device_v1 *device) { | ||||
| 	struct wlr_data_source *source = device->seat->selection_source; | ||||
| 
 | ||||
| 	if (device->selection_offer_resource != NULL) { | ||||
| 		// Make the offer inert
 | ||||
| 		wl_resource_set_user_data(device->selection_offer_resource, NULL); | ||||
| 	} | ||||
| 
 | ||||
| 	device->selection_offer_resource = NULL; | ||||
| 	if (source != NULL) { | ||||
| 		device->selection_offer_resource = create_offer(device, source); | ||||
| 		if (device->selection_offer_resource == NULL) { | ||||
| 			wl_resource_post_no_memory(device->resource); | ||||
| 			return; | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	zwlr_data_control_device_v1_send_selection(device->resource, | ||||
| 		device->selection_offer_resource); | ||||
| } | ||||
| 
 | ||||
| static void control_handle_resource_destroy(struct wl_resource *resource) { | ||||
| 	struct wlr_data_control_device_v1 *device = control_from_resource(resource); | ||||
| 	wlr_data_control_device_v1_destroy(device); | ||||
| } | ||||
| 
 | ||||
| static void control_handle_seat_destroy(struct wl_listener *listener, | ||||
| 		void *data) { | ||||
| 	struct wlr_data_control_device_v1 *device = | ||||
| 		wl_container_of(listener, device, seat_destroy); | ||||
| 	wlr_data_control_device_v1_destroy(device); | ||||
| } | ||||
| 
 | ||||
| static void control_handle_seat_selection(struct wl_listener *listener, | ||||
| 		void *data) { | ||||
| 	struct wlr_data_control_device_v1 *device = | ||||
| 		wl_container_of(listener, device, seat_selection); | ||||
| 	control_send_selection(device); | ||||
| } | ||||
| 
 | ||||
| void wlr_data_control_device_v1_destroy(struct wlr_data_control_device_v1 *device) { | ||||
| 	if (device == NULL) { | ||||
| 		return; | ||||
| 	} | ||||
| 	zwlr_data_control_device_v1_send_finished(device->resource); | ||||
| 	// Make the resources inert
 | ||||
| 	wl_resource_set_user_data(device->resource, NULL); | ||||
| 	if (device->selection_offer_resource != NULL) { | ||||
| 		wl_resource_set_user_data(device->selection_offer_resource, NULL); | ||||
| 	} | ||||
| 	wl_list_remove(&device->seat_destroy.link); | ||||
| 	wl_list_remove(&device->seat_selection.link); | ||||
| 	wl_list_remove(&device->link); | ||||
| 	free(device); | ||||
| } | ||||
| 
 | ||||
| 
 | ||||
| static const struct zwlr_data_control_manager_v1_interface manager_impl; | ||||
| 
 | ||||
| static struct wlr_data_control_manager_v1 *manager_from_resource( | ||||
| 		struct wl_resource *resource) { | ||||
| 	assert(wl_resource_instance_of(resource, | ||||
| 		&zwlr_data_control_manager_v1_interface, &manager_impl)); | ||||
| 	return wl_resource_get_user_data(resource); | ||||
| } | ||||
| 
 | ||||
| static void manager_handle_create_data_source(struct wl_client *client, | ||||
| 		struct wl_resource *manager_resource, uint32_t id) { | ||||
| 	struct client_data_source *source = | ||||
| 		calloc(1, sizeof(struct client_data_source)); | ||||
| 	if (source == NULL) { | ||||
| 		wl_resource_post_no_memory(manager_resource); | ||||
| 		return; | ||||
| 	} | ||||
| 	wlr_data_source_init(&source->source, &client_source_impl); | ||||
| 
 | ||||
| 	uint32_t version = wl_resource_get_version(manager_resource); | ||||
| 	source->resource = wl_resource_create(client, | ||||
| 		&zwlr_data_control_source_v1_interface, version, id); | ||||
| 	if (source->resource == NULL) { | ||||
| 		wl_resource_post_no_memory(manager_resource); | ||||
| 		free(source); | ||||
| 		return; | ||||
| 	} | ||||
| 	wl_resource_set_implementation(source->resource, &source_impl, source, | ||||
| 		source_handle_resource_destroy); | ||||
| } | ||||
| 
 | ||||
| static void manager_handle_get_data_device(struct wl_client *client, | ||||
| 		struct wl_resource *manager_resource, uint32_t id, | ||||
| 		struct wl_resource *seat_resource) { | ||||
| 	struct wlr_data_control_manager_v1 *manager = | ||||
| 		manager_from_resource(manager_resource); | ||||
| 	struct wlr_seat_client *seat_client = | ||||
| 		wlr_seat_client_from_resource(seat_resource); | ||||
| 
 | ||||
| 	struct wlr_data_control_device_v1 *device = | ||||
| 		calloc(1, sizeof(struct wlr_data_control_device_v1)); | ||||
| 	if (device == NULL) { | ||||
| 		wl_resource_post_no_memory(manager_resource); | ||||
| 		return; | ||||
| 	} | ||||
| 	device->manager = manager; | ||||
| 	device->seat = seat_client->seat; | ||||
| 
 | ||||
| 	uint32_t version = wl_resource_get_version(manager_resource); | ||||
| 	device->resource = wl_resource_create(client, | ||||
| 		&zwlr_data_control_device_v1_interface, version, id); | ||||
| 	if (device->resource == NULL) { | ||||
| 		wl_resource_post_no_memory(manager_resource); | ||||
| 		free(device); | ||||
| 		return; | ||||
| 	} | ||||
| 	wl_resource_set_implementation(device->resource, &control_impl, device, | ||||
| 		control_handle_resource_destroy); | ||||
| 	struct wl_resource *resource = device->resource; | ||||
| 
 | ||||
| 	device->seat_destroy.notify = control_handle_seat_destroy; | ||||
| 	wl_signal_add(&device->seat->events.destroy, &device->seat_destroy); | ||||
| 
 | ||||
| 	device->seat_selection.notify = control_handle_seat_selection; | ||||
| 	wl_signal_add(&device->seat->events.selection, &device->seat_selection); | ||||
| 
 | ||||
| 	wl_list_insert(&manager->devices, &device->link); | ||||
| 	wlr_signal_emit_safe(&manager->events.new_device, device); | ||||
| 
 | ||||
| 	// At this point maybe the compositor decided to destroy the device. If
 | ||||
| 	// it's the case then the resource will be inert.
 | ||||
| 	device = control_from_resource(resource); | ||||
| 	if (device != NULL) { | ||||
| 		control_send_selection(device); | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| static void manager_handle_destroy(struct wl_client *client, | ||||
| 		struct wl_resource *manager_resource) { | ||||
| 	wl_resource_destroy(manager_resource); | ||||
| } | ||||
| 
 | ||||
| static const struct zwlr_data_control_manager_v1_interface manager_impl = { | ||||
| 	.create_data_source = manager_handle_create_data_source, | ||||
| 	.get_data_device = manager_handle_get_data_device, | ||||
| 	.destroy = manager_handle_destroy, | ||||
| }; | ||||
| 
 | ||||
| static void manager_handle_resource_destroy(struct wl_resource *resource) { | ||||
| 	wl_list_remove(wl_resource_get_link(resource)); | ||||
| } | ||||
| 
 | ||||
| static void manager_bind(struct wl_client *client, void *data, uint32_t version, | ||||
| 		uint32_t id) { | ||||
| 	struct wlr_data_control_manager_v1 *manager = data; | ||||
| 
 | ||||
| 	struct wl_resource *resource = wl_resource_create(client, | ||||
| 		&zwlr_data_control_manager_v1_interface, version, id); | ||||
| 	if (resource == NULL) { | ||||
| 		wl_client_post_no_memory(client); | ||||
| 		return; | ||||
| 	} | ||||
| 	wl_resource_set_implementation(resource, &manager_impl, manager, | ||||
| 		manager_handle_resource_destroy); | ||||
| 
 | ||||
| 	wl_list_insert(&manager->resources, wl_resource_get_link(resource)); | ||||
| } | ||||
| 
 | ||||
| static void handle_display_destroy(struct wl_listener *listener, void *data) { | ||||
| 	struct wlr_data_control_manager_v1 *manager = | ||||
| 		wl_container_of(listener, manager, display_destroy); | ||||
| 	wlr_data_control_manager_v1_destroy(manager); | ||||
| } | ||||
| 
 | ||||
| struct wlr_data_control_manager_v1 *wlr_data_control_manager_v1_create( | ||||
| 		struct wl_display *display) { | ||||
| 	struct wlr_data_control_manager_v1 *manager = | ||||
| 		calloc(1, sizeof(struct wlr_data_control_manager_v1)); | ||||
| 	if (manager == NULL) { | ||||
| 		return NULL; | ||||
| 	} | ||||
| 	wl_list_init(&manager->resources); | ||||
| 	wl_list_init(&manager->devices); | ||||
| 	wl_signal_init(&manager->events.destroy); | ||||
| 	wl_signal_init(&manager->events.new_device); | ||||
| 
 | ||||
| 	manager->global = wl_global_create(display, | ||||
| 		&zwlr_data_control_manager_v1_interface, DATA_CONTROL_MANAGER_VERSION, | ||||
| 		manager, manager_bind); | ||||
| 	if (manager->global == NULL) { | ||||
| 		free(manager); | ||||
| 		return NULL; | ||||
| 	} | ||||
| 
 | ||||
| 	manager->display_destroy.notify = handle_display_destroy; | ||||
| 	wl_display_add_destroy_listener(display, &manager->display_destroy); | ||||
| 
 | ||||
| 	return manager; | ||||
| } | ||||
| 
 | ||||
| void wlr_data_control_manager_v1_destroy( | ||||
| 		struct wlr_data_control_manager_v1 *manager) { | ||||
| 	if (manager == NULL) { | ||||
| 		return; | ||||
| 	} | ||||
| 
 | ||||
| 	wlr_signal_emit_safe(&manager->events.destroy, manager); | ||||
| 
 | ||||
| 	struct wlr_data_control_device_v1 *device, *control_tmp; | ||||
| 	wl_list_for_each_safe(device, control_tmp, &manager->devices, link) { | ||||
| 		wl_resource_destroy(device->resource); | ||||
| 	} | ||||
| 
 | ||||
| 	struct wl_resource *resource, *resource_tmp; | ||||
| 	wl_resource_for_each_safe(resource, resource_tmp, &manager->resources) { | ||||
| 		wl_resource_destroy(resource); | ||||
| 	} | ||||
| 
 | ||||
| 	wl_list_remove(&manager->display_destroy.link); | ||||
| 	free(manager); | ||||
| } | ||||
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	 Drew DeVault
						Drew DeVault