[PATCH wayland-protocols] Add the tablet protocol
Peter Hutterer
peter.hutterer at who-t.net
Thu Nov 5 20:24:44 PST 2015
Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
This is the revamped version of the tablet protocol for graphics tablets
(e.g. Wacom tablets). Too many changes from the last version (a year ago or
so), so I won't detail them, best to look at it with fresh eyes.
Makefile.am | 1 +
unstable/tablet/README | 4 +
unstable/tablet/tablet-unstable-v1.xml | 588 +++++++++++++++++++++++++++++++++
3 files changed, 593 insertions(+)
create mode 100644 unstable/tablet/README
create mode 100644 unstable/tablet/tablet-unstable-v1.xml
diff --git a/Makefile.am b/Makefile.am
index 4bcab32..588cb2c 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,6 +6,7 @@ protocols = \
unstable/text-input/text-input-unstable-v1.xml \
unstable/input-method/input-method-unstable-v1.xml \
unstable/xdg-shell/xdg-shell-unstable-v5.xml \
+ unstable/tablet/tablet-unstable-v1.xml \
$(NULL)
nobase_dist_pkgdata_DATA = $(protocols)
diff --git a/unstable/tablet/README b/unstable/tablet/README
new file mode 100644
index 0000000..7ba8e77
--- /dev/null
+++ b/unstable/tablet/README
@@ -0,0 +1,4 @@
+Tablet protocol
+
+Maintainers:
+Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/unstable/tablet/tablet-unstable-v1.xml b/unstable/tablet/tablet-unstable-v1.xml
new file mode 100644
index 0000000..b07eccb
--- /dev/null
+++ b/unstable/tablet/tablet-unstable-v1.xml
@@ -0,0 +1,588 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="wayland_tablet_unstable_v1">
+ <description summary="Wayland protocol for graphics tablets">
+ This description provides a high-level overview of the interplay between
+ the interfaces defined this protocol. For details, see the protocol
+ specification.
+
+ More than one tablet may exist, and device-specifics matter. Tablets are
+ not represented by a single virtual device like wl_pointer. A client
+ binds to the tablet manager object which is just a proxy object. From
+ that, the client requests wp_tablet_manager.get_tablet_seat(wl_seat)
+ and that returns the actual interface that has all the tablets. With
+ this indirection, we can avoid merging wp_tablet into the actual wayland
+ protocol, a long-term benefit.
+
+ The wp_tablet_seat sends a "tablet added" for each tablet connected.
+ That event is followed by descriptive events about the hardware;
+ currently that includes events for name, vid/pid and
+ internal/external/display type, and a wp_tablet.path event that
+ describes a local path. This path can be used to uniquely identify a
+ tablet, or get more information through libwacom. Emulated or nested
+ tablets can skip any of those, e.g. a virtual tablet may not have a
+ vid/pid. The sequence of descriptive events is terminated by a
+ wp_tablet.done event to signal that a client may now finalize any
+ initialization for that tablet.
+
+ Events from tablets require a tool in proximity. Tools are also managed
+ by the tablet seat, a "tool added" is sent whenever a tool is new to
+ the compositor. That event is followed by a number of descriptive events
+ about the hardware; currently that includes capabilities, serial id,
+ hardware serial and tool type. Similar to the tablet interface, a
+ wp_tablet_tool.done event is sent to terminate that initial sequence.
+
+ Any event from a tool happens on the wp_tablet_tool interface. When the
+ tool gets into proximity of the tablet, a proximity_in event is sent on
+ the wp_tablet_tool interface, listing the tablet and the surface. That
+ event is followed by a motion event with the coordinates. After that,
+ it's the usual motion, axis, button, etc. events.
+ The protocol's serialisation means events are grouped by by
+ wp_tablet_tool.frame events.
+
+ Two special events (that don't exist in X) are down and up. They signal
+ "tip touching the surface". For tablets without real proximity
+ detection, the sequence is: proximity_in, motion, down, frame.
+
+ When the tool leaves proximity, a proximity_out event is sent, followed
+ by button release events for any button still down. This signals to
+ the client that the buttons were held when the tool left proximity.
+ Those events are all sent within the same frame.
+
+ If the tool moves out of the surface but stays in proximity (i.e.
+ between windows), compositor-specific grab policies apply. This usually
+ means that the proximity-out is delayed until all buttons are released.
+
+ Moving a tool physically from one tablet to the other has no real effect
+ on the protocol, since we already have the tool object from the "tool
+ added" event. All the information is already there and the proximity_in
+ is all a client needs to reconstruct what happened.
+
+ Any extra axis is normalized, i.e. the client knows the range as
+ specified in the protocol (e.g. [0, 65535]), the granularity however is
+ unknown. The current axes are pressure, tilt (both x/y required) and
+ distance, the most common set.
+
+ Since tablets work independently of the pointer controlled by the mouse,
+ the focus handling is independent too and controlled by proximity.
+ The wp_tablet_tool.set_cursor request sets a tool-specific cursor.
+ This cursor surface may be the same as the mouse cursor, and it may be
+ the same across tools but it is possible to be more fine-grained. For
+ example, a client may set different cursors for the pen and eraser.
+
+ Tools are generally independent of tablets and it is
+ compositor-specific policy when a tool can removed. Common approaches
+ will likely include some form of removing a tool when all tablets the
+ tool was used on is removed.
+
+ 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>
+ <copyright>
+ Copyright 2014 © Stephen "Lyude" Chandler Paul
+ Copyright 2015 © Red Hat, Inc.
+
+ Permission is hereby granted, free of charge, to any person
+ obtaining a copy of this software and associated documentation files
+ (the "Software"), to deal in the Software without restriction,
+ including without limitation the rights to use, copy, modify, merge,
+ publish, distribute, sublicense, and/or sell copies of the Software,
+ and to permit persons to whom the Software is furnished to do so,
+ subject to the following conditions:
+
+ The above copyright notice and this permission notice (including the
+ next paragraph) shall be included in all copies or substantial
+ portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ SOFTWARE.
+ </copyright>
+ <interface name="zwp_tablet_manager1" version="1">
+ <description summary="controller object for graphic tablet devices">
+ An object that provides access to the graphics tablets available on this
+ system. Any tablet is associated with a seat, to get access to the
+ actual tablets, use wp_tablet_manager.get_tablet_seat.
+ </description>
+
+ <request name="get_tablet_seat">
+ <description summary="get the tablet seat">
+ Get the wp_tablet_seat object for the given seat. This object
+ provides access to all graphics tablets in this seat.
+ </description>
+ <arg name="tablet_seat" type="new_id" interface="zwp_tablet_seat1"/>
+ <arg name="seat" type="object" interface="wl_seat" summary="The wl_seat object to retrieve the tablets for" />
+ </request>
+
+ <request name="destroy" type="destructor">
+ <description summary="release the memory for the tablet manager object">
+ This destroys the resources associated with the tablet manager.
+ </description>
+ </request>
+ </interface>
+
+ <interface name="zwp_tablet_seat1" version="1">
+ <description summary="controller object for graphic tablet devices of a seat">
+ An object that provides access to the graphics tablets available on this
+ seat. After binding to this interface, the compositor sends a set of
+ wp_tablet_seat.tablet_added and wp_tablet_seat.tool_added events.
+ </description>
+
+ <request name="destroy" type="destructor">
+ <description summary="release the memory for the tablet seat object">
+ This destroys the resources associated with the tablet seat.
+ </description>
+ </request>
+
+ <event name="tablet_added">
+ <description summary="new device notification">
+ This event is sent whenever a new tablet becomes available on this
+ seat. This event only provides the object id of the tablet, any
+ static information about the tablet (device name, vid/pid, etc.) is
+ sent through the wp_tablet interface.
+ </description>
+ <arg name="id" type="new_id" interface="zwp_tablet1" summary="the newly added graphics tablet"/>
+ </event>
+
+ <event name="tool_added">
+ <description summary="a new tool has been used with a tablet">
+ This event is sent whenever a tool that has not previously been used
+ with a tablet comes into use. This event only provides the object id
+ of the tool, any static information about the tool (capabilities,
+ type, et.c) is sent through the wp_tablet_tool interface.
+ </description>
+ <arg name="id" type="new_id" interface="zwp_tablet_tool1" summary="the newly added tablet tool"/>
+ </event>
+ </interface>
+
+ <interface name="zwp_tablet_tool1" version="1">
+ <description summary="a physical tablet tool">
+ An unique object that represents a physical tool that has been, or is
+ currently in use with a tablet in this seat. Each wp_tablet_tool
+ object stays valid until the client destroys it; the compositor
+ reuses the wp_tablet_tool object to indicate that the object's
+ respective physical tool has come into proximity of a tablet again.
+ A client must not call wp_tablet_tool.destroy until it receives a
+ wp_tablet_tool.release event.
+
+ A wp_tablet_tool object's uniqueness depends on the tablet's ability
+ to report serial numbers. If the tablet doesn't support this
+ capability, then the tool cannot be guaranteed to be unique.
+
+ A tablet tool has a number of static characteristics, e.g. tool type,
+ serial_id and capabilities. These capabilities are sent in an event
+ sequence after the wp_tablet_seat.tool_added event before any actual
+ events from this tool. This initial event sequence is terminated by a
+ wp_tablet_tool.done event.
+
+ Tablet tool events are grouped by wp_tablet_tool.frame events.
+ Any events received before a wp_tablet_tool.frame event should be
+ considered part of the same hardware state change.
+ </description>
+
+ <request name="set_cursor">
+ <description summary="set the tablet tool's surface">
+ Sets the surface of the cursor used for this tool on the given
+ tablet. The surface is only shown when this tool is in proximity of
+ this tablet. If the surface is NULL, the pointer image is hidden
+ completely.
+
+ The parameters hotspot_x and hotspot_y define the position of the
+ pointer surface relative to the pointer location. Its top-left corner
+ is always at (x, y) - (hotspot_x, hotspot_y), where (x, y) are the
+ coordinates of the pointer location, in surface local coordinates.
+
+ On surface.attach requests to the pointer surface, hotspot_x and
+ hotspot_y are decremented by the x and y parameters passed to the
+ request. Attach must be confirmed by wl_surface.commit as usual.
+
+ The hotspot can also be updated by passing the currently set pointer
+ surface to this request with new values for hotspot_x and hotspot_y.
+
+ The current and pending input regions of the wl_surface are cleared,
+ and wl_surface.set_input_region is ignored until the wl_surface is no
+ longer used as the cursor. When the use as a cursor ends, the current
+ and pending input regions become undefined, and the wl_surface is
+ unmapped.
+
+ This request gives the surface the role of a cursor. The role
+ assigned by this request is the same as assigned by
+ wl_pointer.set_cursor meaning the same surface can be
+ used both as a wl_pointer cursor and a wp_tablet cursor. If the
+ surface already has another role, it raises a protocol error
+ The surface may be used on multiple tablets and across multiple
+ seats.
+ </description>
+ <arg name="serial" type="uint" summary="serial of the enter event"/>
+ <arg name="surface" type="object" interface="wl_surface" allow-null="true"/>
+ <arg name="hotspot_x" type="int" summary="x coordinate in surface-relative coordinates"/>
+ <arg name="hotspot_y" type="int" summary="y coordinate in surface-relative coordinates"/>
+ </request>
+
+ <request name="destroy" type="destructor">
+ <description summary="destroy the tool object">
+ This destroys the client's resource for this tool object.
+
+ A client must not issue this request until it receives a
+ wp_tablet_tool.remove event.
+ </description>
+ </request>
+
+ <enum name="type">
+ <description summary="a physical tool type">
+ Describes the physical type of a tool. The physical type of a tool
+ generally defines its base usage.
+
+ The mouse tool represents a mouse-shaped tool that is not a relative
+ device but bound to the tablet's surface, providing absolute
+ coordinates.
+
+ The lens tool is a mouse-shaped tool with an attached lens to
+ provide precision focus.
+ </description>
+ <entry name="pen" value="0x140" summary="Pen"/>
+ <entry name="eraser" value="0x141" summary="Eraser"/>
+ <entry name="brush" value="0x142" summary="Brush"/>
+ <entry name="pencil" value="0x143" summary="Pencil"/>
+ <entry name="airbrush" value="0x144" summary="Airbrush"/>
+ <entry name="finger" value="0x145" summary="Finger"/>
+ <entry name="mouse" value="0x146" summary="Mouse"/>
+ <entry name="lens" value="0x147" summary="Lens"/>
+ </enum>
+
+ <event name="type">
+ <description summary="tool type">
+ The tool type is the high-level type of the tool and usually decides
+ the interaction expected from this tool.
+
+ This event is sent in the initial burst of events before the
+ wp_tablet_tool.done event.
+ </description>
+ <arg name="tool_type" type="uint" summary="the physical tool type"/>
+ </event>
+
+ <event name="serial_id">
+ <description summary="unique serial number of the tool">
+ If the tool can be identified by a unique 64-bit serial number, this
+ event notifies the client of the serial number.
+
+ If multiple tablets are available in the same seat and the tool is
+ uniquely identifiable by the serial number, that tool may move
+ between tablets.
+
+ Otherwise, if the tool has no serial number and this event is
+ missing, the tool is tied to the tablet it first comes into
+ proximity with. Even if the physical tool is used on multiple
+ tablets, separate wp_tablet_tool objects will be created, one per
+ tablet.
+
+ This event is sent in the initial burst of events before the
+ wp_tablet_tool.done event.
+ </description>
+ <arg name="serial_id_msb" type="uint" summary="the unique serial number of the tool, most significant bits"/>
+ <arg name="serial_id_lsb" type="uint" summary="the unique serial number of the tool, least significant bits"/>
+ </event>
+
+ <enum name="hardware_id_format">
+ <description summary="the hardware id format">
+ Specifies the format of the hardware id in the
+ wp_tablet_tool.hardware_id event.
+
+ A wacom_stylus_id format indicates a hardware id as the id used by
+ graphics tablet made by Wacom Inc. For example, on Wacom tablets the
+ hardware id of a Grip Pen (a stylus) is 0x802.
+ </description>
+ <entry name="wacom_stylus_id" value="0" />
+ </enum>
+
+ <event name="hardware_id">
+ <description summary="hardware id notification">
+ This event notifies the client of a hardware id available on this tool.
+
+ The hardware id is a device-specific 64-bit id that provides extra
+ information about the tool in use, beyond the wl_tool.type
+ enumeration. The format of the id is device-specific.
+
+ This event is sent in the initial burst of events before the
+ wp_tablet_tool.done event.
+ </description>
+ <arg name="format" type="uint" summary="the type of the id" />
+ <arg name="hardware_id_msb" type="uint" summary="the hardware id, most significant bits"/>
+ <arg name="hardware_id_lsb" type="uint" summary="the hardware id, least significant bits"/>
+ </event>
+
+
+ <enum name="capability">
+ <description summary="capability flags for a tool">
+ Describes extra capabilities on a tablet.
+
+ Any tool must provide x and y values, extra axes are
+ device-specific.
+ </description>
+ <entry name="tilt" value="1" summary="Tilt axes"/>
+ <entry name="pressure" value="2" summary="Pressure axis"/>
+ <entry name="distance" value="3" summary="Distance axis"/>
+ </enum>
+
+ <event name="capability">
+ <description summary="tool capability notification">
+ This event notifies the client of any capabilities of this tool,
+ beyond the main set of x/y axes and tip up/down detection.
+
+ One event is sent for each extra capability available on this tool.
+
+ This event is sent in the initial burst of events before the
+ wp_tablet_tool.done event.
+ </description>
+ <arg name="capability" type="uint" summary="the capability"/>
+ </event>
+
+ <event name="done">
+ <description summary="tool description events sequence complete">
+ This event signals the end of the initial burst of descriptive
+ events. A client may consider the static description of the tool to
+ be complete and finalize initialization of the tool.
+ </description>
+ </event>
+
+ <event name="removed">
+ <description summary="tool removed">
+ This event is sent when the tool is removed from the system. The client
+ should not expect the resource it currently has associated with the
+ tool to be used again if the tool comes back into proximity later.
+
+ It is compositor-dependent when a tool is removed. Some tools are
+ associated with a single tablet only and may get removed when the
+ respective tablet is removed. Other tools may be used on multiple
+ tablets and removing a tablet may not remove this tool.
+
+ When this event is received, the client must wp_tablet_tool.destroy
+ the object.
+ </description>
+ </event>
+
+ <event name="proximity_in">
+ <description summary="proximity in event">
+ Notification that this tool is focused on a certain surface.
+
+ This event can be received when the tool has moved from one surface to
+ another, or when the tool has come back into proximity above the
+ surface.
+
+ Any button events sent within the same wp_tablet.frame as a
+ proximity_in event indicate the button state of the tool at the time
+ of proximity in.
+ </description>
+ <arg name="serial" type="uint"/>
+ <arg name="tablet" type="object" interface="zwp_tablet1" summary="The tablet the tool is in proximity of"/>
+ <arg name="surface" type="object" interface="wl_surface" summary="The current surface the tablet tool is over"/>
+ </event>
+
+ <event name="proximity_out">
+ <description summary="proximity out event">
+ Notification that this tool has either left proximity, or is no
+ longer focused on a certain surface.
+
+ When the tablet tool leaves proximity of the tablet, button release
+ events are sent for each button that was held down at the time of
+ leaving proximity. These events are sent in the same wp_tablet.frame
+ of the proximity_out event.
+
+ If the tool stays within proximity of the tablet, but the focus
+ changes from one surface to another, a button release event may not
+ be sent until the button is actually released or the tool leaves the
+ proximity of the tablet.
+ </description>
+ </event>
+
+ <event name="down">
+ <description summary="tablet tool is making contact">
+ Sent whenever the tablet tool comes in contact with the surface of the
+ tablet. If the tablet tool moves out of a region while in contact with
+ the surface of the tablet, the client owning said region will receive a
+ wp_tablet::up event, followed by a wp_tablet::proximity_out event and a
+ wp_tablet::frame event.
+ </description>
+ <arg name="serial" type="uint"/>
+ </event>
+
+ <event name="up">
+ <description summary="tablet tool is no longer making contact">
+ Sent whenever the tablet tool stops making contact with the surface of
+ the tablet, or when the tablet tool moves off of a surface while it was
+ making contact with the tablet's surface.
+ </description>
+ </event>
+
+ <event name="motion">
+ <description summary="motion event">
+ Sent whenever a tablet tool moves.
+ </description>
+ <arg name="x" type="fixed" summary="surface-relative x coordinate"/>
+ <arg name="y" type="fixed" summary="surface-relative y coordinate"/>
+ </event>
+
+ <event name="pressure">
+ <description summary="pressure change event">
+ Sent whenever the pressure axis on a tool changes. The value of this
+ event is normalized to a value between 0 and 65535.
+ </description>
+ <arg name="pressure" type="uint" summary="The current pressure value"/>
+ </event>
+
+ <event name="distance">
+ <description summary="distance change event">
+ Sent whenever the distance axis on a tool changes. The value of this
+ event is normalized to a value between 0 and 65535.
+ </description>
+ <arg name="distance" type="uint" summary="The current distance value"/>
+ </event>
+
+ <event name="tilt">
+ <description summary="tilt change event">
+ Sent whenever one or both of the tilt axes on a tool change. Each tilt
+ value is normalized between -65535 and 65535.
+ </description>
+ <arg name="tilt_x" type="int" summary="The current value of the X tilt axis"/>
+ <arg name="tilt_y" type="int" summary="The current value of the Y tilt axis"/>
+ </event>
+
+ <enum name="button_state">
+ <description summary="physical button state">
+ Describes the physical state of a button which provoked the button event
+ </description>
+ <entry name="released" value="0" summary="button is not pressed"/>
+ <entry name="pressed" value="1" summary="button is pressed"/>
+ </enum>
+
+ <event name="button">
+ <description summary="button event">
+ Sent whenever a button on the stylus is pressed or released.
+ </description>
+
+ <arg name="serial" type="uint"/>
+ <arg name="button" type="uint" summary="The button whose state has changed"/>
+ <arg name="state" type="uint" summary="Whether the button was pressed or released"/>
+ </event>
+
+ <event name="frame">
+ <description summary="frame event">
+ Marks the end of a series of axis and/or button updates from the
+ tablet. The wayland protocol requires axis updates to be sent
+ sequentially, however all events within a frame should be considered
+ one hardware event.
+ </description>
+ <arg name="time" type="uint" summary="The time of the event with millisecond granularity"/>
+ </event>
+
+ <enum name="error">
+ <entry name="role" value="0" summary="given wl_surface has another role"/>
+ </enum>
+ </interface>
+
+ <interface name="zwp_tablet1" version="1">
+ <description summary="graphics tablet device">
+ The wp_tablet interface represents one graphics tablet device. The
+ tablet interface itself does not generate events, all events are
+ generated by wp_tablet_tool objects when in proximity above a tablet.
+
+ A tablet has a number of static characteristics, e.g. device name and
+ pid/vid. These capabilities are sent in an event sequence after the
+ wp_tablet_seat.tablet_added event. This initial event sequence is
+ terminated by a wp_tablet.done event.
+ </description>
+
+ <request name="destroy" type="destructor">
+ <description summary="destroy the tablet object">
+ This destroys the client's resource for this tablet object.
+
+ A client must not issue this request until it receives a
+ wp_tablet.remove event.
+ </description>
+ </request>
+
+ <event name="name">
+ <description summary="tablet device name">
+ This event is sent in the initial burst of events before the
+ wp_tablet.done event.
+ </description>
+ <arg name="name" type="string" summary="the device name"/>
+ </event>
+
+ <event name="id">
+ <description summary="tablet device vid/pid">
+ This event is sent in the initial burst of events before the
+ wp_tablet.done event.
+ </description>
+ <arg name="vid" type="uint" summary="vendor id"/>
+ <arg name="pid" type="uint" summary="product id"/>
+ </event>
+
+ <enum name="type">
+ <description summary="tablet type">
+ Describes the type of tablet
+ </description>
+
+ <entry name="external" value="0" summary="The tablet is an external tablet, such as an Intuos"/>
+ <entry name="internal" value="1" summary="The tablet is a built-in tablet, usually in a laptop"/>
+ <entry name="display" value="2" summary="The tablet is a display tablet, such as a Cintiq"/>
+ </enum>
+
+ <event name="type">
+ <description summary="the tablet type">
+ This event is sent in the initial burst of events before the
+ wp_tablet.done event.
+ </description>
+ <arg name="type" type="uint" summary="the tablet type (internal, external, ...)"/>
+ </event>
+
+ <event name="path">
+ <description summary="path to the device">
+ A system-specific device path that indicates which device is behind
+ this wp_tablet. This information may be used to gather additional
+ information about the device, e.g. through libwacom.
+
+ A device may have more than one device path, if so, multiple
+ wp_tablet.path events are sent. A device may be emulated and not
+ have a device path, in that case this event will not be sent.
+
+ The format of the path is unspecified, it may be a device node, a
+ sysfs path, or some other identifier. It is up to the client to
+ identify the string provided.
+
+ This event is sent in the initial burst of events before the
+ wp_tablet.done event.
+ </description>
+ <arg name="path" type="string" summary="path to local device"/>
+ </event>
+
+ <event name="done">
+ <description summary="tablet description events sequence complete">
+ This event is sent immediately to signal the end of the initial
+ burst of descriptive events. A client may consider the static
+ description of the tablet to be complete and finalize initialization
+ of the tablet.
+ </description>
+ </event>
+
+ <event name="removed">
+ <description summary="tablet removed event">
+ Sent when the tablet has been removed from the system. When a tablet
+ is removed, some tools may be removed.
+
+ When this event is received, the client must wp_tablet.destroy
+ the object.
+ </description>
+ </event>
+ </interface>
+</protocol>
--
2.4.3
More information about the wayland-devel
mailing list