diff options
Diffstat (limited to 'backend/libinput/tablet_tool.c')
| -rw-r--r-- | backend/libinput/tablet_tool.c | 231 |
1 files changed, 221 insertions, 10 deletions
diff --git a/backend/libinput/tablet_tool.c b/backend/libinput/tablet_tool.c index e9308b65..adfc6221 100644 --- a/backend/libinput/tablet_tool.c +++ b/backend/libinput/tablet_tool.c @@ -1,6 +1,11 @@ +#ifndef _POSIX_C_SOURCE +#define _POSIX_C_SOURCE 200809L +#endif +#include <string.h> #include <assert.h> #include <libinput.h> #include <stdlib.h> +#include <wayland-util.h> #include <wlr/backend/session.h> #include <wlr/interfaces/wlr_tablet_tool.h> #include <wlr/types/wlr_input_device.h> @@ -8,16 +13,174 @@ #include "backend/libinput.h" #include "util/signal.h" -struct wlr_tablet_tool *create_libinput_tablet_tool( +static struct wlr_tablet_impl tablet_impl; + +static bool tablet_is_libinput(struct wlr_tablet *tablet) { + return tablet->impl == &tablet_impl; +} + +struct wlr_libinput_tablet_tool { + struct wlr_tablet_tool wlr_tool; + + struct libinput_tablet_tool *libinput_tool; + + bool unique; + // Refcount for destroy + release + size_t pad_refs; +}; + +// TODO: Maybe this should be a wlr_list? Do we keep it, or want to get rid of +// it? +struct tablet_tool_list_elem { + struct wl_list link; + + struct wlr_libinput_tablet_tool *tool; +}; + +struct wlr_libinput_tablet { + struct wlr_tablet wlr_tablet; + + struct wl_list tools; // tablet_tool_list_elem::link +}; + +static void destroy_tool(struct wlr_libinput_tablet_tool *tool) { + wlr_signal_emit_safe(&tool->wlr_tool.events.destroy, &tool->wlr_tool); + libinput_tablet_tool_ref(tool->libinput_tool); + libinput_tablet_tool_set_user_data(tool->libinput_tool, NULL); + free(tool); +} + + +static void destroy_tablet(struct wlr_tablet *wlr_tablet) { + assert(tablet_is_libinput(wlr_tablet)); + struct wlr_libinput_tablet *tablet = + wl_container_of(wlr_tablet, tablet, wlr_tablet); + + struct tablet_tool_list_elem *pos; + struct tablet_tool_list_elem *tmp; + wl_list_for_each_safe(pos, tmp, &tablet->tools, link) { + struct wlr_libinput_tablet_tool *tool = pos->tool; + wl_list_remove(&pos->link); + free(pos); + + if (--tool->pad_refs == 0) { + destroy_tool(tool); + } + } + + free(tablet); +} + +static struct wlr_tablet_impl tablet_impl = { + .destroy = destroy_tablet, +}; + +struct wlr_tablet *create_libinput_tablet( struct libinput_device *libinput_dev) { assert(libinput_dev); - struct wlr_tablet_tool *wlr_tablet_tool = calloc(1, sizeof(struct wlr_tablet_tool)); - if (!wlr_tablet_tool) { + struct wlr_libinput_tablet *libinput_tablet = + calloc(1, sizeof(struct wlr_libinput_tablet)); + if (!libinput_tablet) { wlr_log(WLR_ERROR, "Unable to allocate wlr_tablet_tool"); return NULL; } - wlr_tablet_tool_init(wlr_tablet_tool, NULL); - return wlr_tablet_tool; + struct wlr_tablet *wlr_tablet = &libinput_tablet->wlr_tablet; + + wlr_list_init(&wlr_tablet->paths); + struct udev_device *udev = libinput_device_get_udev_device(libinput_dev); + wlr_list_push(&wlr_tablet->paths, strdup(udev_device_get_syspath(udev))); + wlr_tablet->name = strdup(libinput_device_get_name(libinput_dev)); + wl_list_init(&libinput_tablet->tools); + + wlr_tablet_init(wlr_tablet, &tablet_impl); + return wlr_tablet; +} + +static enum wlr_tablet_tool_type wlr_type_from_libinput_type( + enum libinput_tablet_tool_type value) { + switch (value) { + case LIBINPUT_TABLET_TOOL_TYPE_PEN: + return WLR_TABLET_TOOL_TYPE_PEN; + case LIBINPUT_TABLET_TOOL_TYPE_ERASER: + return WLR_TABLET_TOOL_TYPE_ERASER; + case LIBINPUT_TABLET_TOOL_TYPE_BRUSH: + return WLR_TABLET_TOOL_TYPE_BRUSH; + case LIBINPUT_TABLET_TOOL_TYPE_PENCIL: + return WLR_TABLET_TOOL_TYPE_PENCIL; + case LIBINPUT_TABLET_TOOL_TYPE_AIRBRUSH: + return WLR_TABLET_TOOL_TYPE_AIRBRUSH; + case LIBINPUT_TABLET_TOOL_TYPE_MOUSE: + return WLR_TABLET_TOOL_TYPE_MOUSE; + case LIBINPUT_TABLET_TOOL_TYPE_LENS: + return WLR_TABLET_TOOL_TYPE_LENS; + } + + assert(false && "UNREACHABLE"); +} + +static struct wlr_libinput_tablet_tool *get_wlr_tablet_tool( + struct libinput_tablet_tool *tool) { + struct wlr_libinput_tablet_tool *ret = + libinput_tablet_tool_get_user_data(tool); + + if (ret) { + return ret; + } + + ret = calloc(1, sizeof(struct wlr_libinput_tablet_tool)); + if (!ret) { + return NULL; + } + + ret->libinput_tool = libinput_tablet_tool_ref(tool); + ret->wlr_tool.pressure = libinput_tablet_tool_has_pressure(tool); + ret->wlr_tool.distance = libinput_tablet_tool_has_distance(tool); + ret->wlr_tool.tilt = libinput_tablet_tool_has_tilt(tool); + ret->wlr_tool.rotation = libinput_tablet_tool_has_rotation(tool); + ret->wlr_tool.slider = libinput_tablet_tool_has_slider(tool); + ret->wlr_tool.wheel = libinput_tablet_tool_has_wheel(tool); + + ret->wlr_tool.hardware_serial = libinput_tablet_tool_get_serial(tool); + ret->wlr_tool.hardware_wacom = libinput_tablet_tool_get_tool_id(tool); + ret->wlr_tool.type = wlr_type_from_libinput_type( + libinput_tablet_tool_get_type(tool)); + + ret->unique = libinput_tablet_tool_is_unique(tool); + + wl_signal_init(&ret->wlr_tool.events.destroy); + + libinput_tablet_tool_set_user_data(tool, ret); + return ret; +} + +static void ensure_tool_reference(struct wlr_libinput_tablet_tool *tool, + struct wlr_tablet *wlr_dev) { + assert(tablet_is_libinput(wlr_dev)); + struct wlr_libinput_tablet *tablet = wl_container_of(wlr_dev, tablet, wlr_tablet); + + struct tablet_tool_list_elem *pos; + wl_list_for_each(pos, &tablet->tools, link) { + if (pos->tool == tool) { // We already have a ref + // XXX: We *could* optimize the tool to the front of + // the list here, since we will probably get the next + // couple of events from the same tool. + // BUT the list should always be rather short (probably + // single digit amount of tools) so it might be more + // work than it saves + return; + } + } + + struct tablet_tool_list_elem *new = + calloc(1, sizeof(struct tablet_tool_list_elem)); + if (!new) { + wlr_log(WLR_ERROR, "Failed to allocate memory for tracking tablet tool"); + return; + } + + new->tool = tool; + wl_list_insert(&tablet->tools, &new->link); + ++tool->pad_refs; } void handle_tablet_tool_axis(struct libinput_event *event, @@ -31,16 +194,23 @@ void handle_tablet_tool_axis(struct libinput_event *event, struct libinput_event_tablet_tool *tevent = libinput_event_get_tablet_tool_event(event); struct wlr_event_tablet_tool_axis wlr_event = { 0 }; + struct wlr_libinput_tablet_tool *tool = get_wlr_tablet_tool( + libinput_event_tablet_tool_get_tool(tevent)); + ensure_tool_reference(tool, wlr_dev->tablet); + wlr_event.device = wlr_dev; + wlr_event.tool = &tool->wlr_tool; wlr_event.time_msec = usec_to_msec(libinput_event_tablet_tool_get_time_usec(tevent)); if (libinput_event_tablet_tool_x_has_changed(tevent)) { wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_X; wlr_event.x = libinput_event_tablet_tool_get_x_transformed(tevent, 1); + wlr_event.dx = libinput_event_tablet_tool_get_dx(tevent); } if (libinput_event_tablet_tool_y_has_changed(tevent)) { wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_Y; wlr_event.y = libinput_event_tablet_tool_get_y_transformed(tevent, 1); + wlr_event.dy = libinput_event_tablet_tool_get_dy(tevent); } if (libinput_event_tablet_tool_pressure_has_changed(tevent)) { wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_PRESSURE; @@ -70,7 +240,7 @@ void handle_tablet_tool_axis(struct libinput_event *event, wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_WHEEL; wlr_event.wheel_delta = libinput_event_tablet_tool_get_wheel_delta(tevent); } - wlr_signal_emit_safe(&wlr_dev->tablet_tool->events.axis, &wlr_event); + wlr_signal_emit_safe(&wlr_dev->tablet->events.axis, &wlr_event); } void handle_tablet_tool_proximity(struct libinput_event *event, @@ -84,6 +254,11 @@ void handle_tablet_tool_proximity(struct libinput_event *event, struct libinput_event_tablet_tool *tevent = libinput_event_get_tablet_tool_event(event); struct wlr_event_tablet_tool_proximity wlr_event = { 0 }; + struct wlr_libinput_tablet_tool *tool = get_wlr_tablet_tool( + libinput_event_tablet_tool_get_tool(tevent)); + ensure_tool_reference(tool, wlr_dev->tablet); + + wlr_event.tool = &tool->wlr_tool; wlr_event.device = wlr_dev; wlr_event.time_msec = usec_to_msec(libinput_event_tablet_tool_get_time_usec(tevent)); @@ -93,10 +268,36 @@ void handle_tablet_tool_proximity(struct libinput_event *event, break; case LIBINPUT_TABLET_TOOL_PROXIMITY_STATE_IN: wlr_event.state = WLR_TABLET_TOOL_PROXIMITY_IN; - handle_tablet_tool_axis(event, libinput_dev); break; } - wlr_signal_emit_safe(&wlr_dev->tablet_tool->events.proximity, &wlr_event); + wlr_signal_emit_safe(&wlr_dev->tablet->events.proximity, &wlr_event); + + if (libinput_event_tablet_tool_get_proximity_state(tevent) == LIBINPUT_TABLET_TOOL_PROXIMITY_STATE_IN) { + handle_tablet_tool_axis(event, libinput_dev); + } + + // If the tool is not unique, libinput will not find it again after the + // proximity out, so we should destroy it + if (!tool->unique && + libinput_event_tablet_tool_get_proximity_state(tevent) == LIBINPUT_TABLET_TOOL_PROXIMITY_STATE_OUT) { + // The tool isn't unique, it can't be on multiple tablets + assert(tool->pad_refs == 1); + assert(tablet_is_libinput(wlr_dev->tablet)); + struct wlr_libinput_tablet *tablet = + wl_container_of(wlr_dev->tablet, tablet, wlr_tablet); + struct tablet_tool_list_elem *pos; + struct tablet_tool_list_elem *tmp; + + wl_list_for_each_safe(pos, tmp, &tablet->tools, link) { + if (pos->tool == tool) { + wl_list_remove(&pos->link); + free(pos); + break; + } + } + + destroy_tool(tool); + } } void handle_tablet_tool_tip(struct libinput_event *event, @@ -111,7 +312,12 @@ void handle_tablet_tool_tip(struct libinput_event *event, struct libinput_event_tablet_tool *tevent = libinput_event_get_tablet_tool_event(event); struct wlr_event_tablet_tool_tip wlr_event = { 0 }; + struct wlr_libinput_tablet_tool *tool = get_wlr_tablet_tool( + libinput_event_tablet_tool_get_tool(tevent)); + ensure_tool_reference(tool, wlr_dev->tablet); + wlr_event.device = wlr_dev; + wlr_event.tool = &tool->wlr_tool; wlr_event.time_msec = usec_to_msec(libinput_event_tablet_tool_get_time_usec(tevent)); switch (libinput_event_tablet_tool_get_tip_state(tevent)) { @@ -122,7 +328,7 @@ void handle_tablet_tool_tip(struct libinput_event *event, wlr_event.state = WLR_TABLET_TOOL_TIP_DOWN; break; } - wlr_signal_emit_safe(&wlr_dev->tablet_tool->events.tip, &wlr_event); + wlr_signal_emit_safe(&wlr_dev->tablet->events.tip, &wlr_event); } void handle_tablet_tool_button(struct libinput_event *event, @@ -137,7 +343,12 @@ void handle_tablet_tool_button(struct libinput_event *event, struct libinput_event_tablet_tool *tevent = libinput_event_get_tablet_tool_event(event); struct wlr_event_tablet_tool_button wlr_event = { 0 }; + struct wlr_libinput_tablet_tool *tool = get_wlr_tablet_tool( + libinput_event_tablet_tool_get_tool(tevent)); + ensure_tool_reference(tool, wlr_dev->tablet); + wlr_event.device = wlr_dev; + wlr_event.tool = &tool->wlr_tool; wlr_event.time_msec = usec_to_msec(libinput_event_tablet_tool_get_time_usec(tevent)); wlr_event.button = libinput_event_tablet_tool_get_button(tevent); @@ -149,5 +360,5 @@ void handle_tablet_tool_button(struct libinput_event *event, wlr_event.state = WLR_BUTTON_PRESSED; break; } - wlr_signal_emit_safe(&wlr_dev->tablet_tool->events.button, &wlr_event); + wlr_signal_emit_safe(&wlr_dev->tablet->events.button, &wlr_event); } |