457 lines
21 KiB
XML
457 lines
21 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
|
|
|
|
<protocol name="text_input_unstable_v3">
|
|
<copyright>
|
|
Copyright © 2012, 2013 Intel Corporation
|
|
Copyright © 2015, 2016 Jan Arne Petersen
|
|
Copyright © 2017, 2018 Red Hat, Inc.
|
|
Copyright © 2018 Purism SPC
|
|
|
|
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="Protocol for composing text">
|
|
This protocol allows compositors to act as input methods and to send text
|
|
to applications. A text input object is used to manage state of what are
|
|
typically text entry fields in the application.
|
|
|
|
This document adheres to the RFC 2119 when using words like "must",
|
|
"should", "may", etc.
|
|
|
|
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="zwp_text_input_v3" version="1">
|
|
<description summary="text input">
|
|
The zwp_text_input_v3 interface represents text input and input methods
|
|
associated with a seat. It provides enter/leave events to follow the
|
|
text input focus for a seat.
|
|
|
|
Requests are used to enable/disable the text-input object and set
|
|
state information like surrounding and selected text or the content type.
|
|
The information about the entered text is sent to the text-input object
|
|
via the preedit_string and commit_string events.
|
|
|
|
Text is valid UTF-8 encoded, indices and lengths are in bytes. Indices
|
|
must not point to middle bytes inside a code point: they must either
|
|
point to the first byte of a code point or to the end of the buffer.
|
|
Lengths must be measured between two valid indices.
|
|
|
|
Focus moving throughout surfaces will result in the emission of
|
|
zwp_text_input_v3.enter and zwp_text_input_v3.leave events. The focused
|
|
surface must commit zwp_text_input_v3.enable and
|
|
zwp_text_input_v3.disable requests as the keyboard focus moves across
|
|
editable and non-editable elements of the UI. Those two requests are not
|
|
expected to be paired with each other, the compositor must be able to
|
|
handle consecutive series of the same request.
|
|
|
|
State is sent by the state requests (set_surrounding_text,
|
|
set_content_type and set_cursor_rectangle) and a commit request. After an
|
|
enter event or disable request all state information is invalidated and
|
|
needs to be resent by the client.
|
|
</description>
|
|
|
|
<request name="destroy" type="destructor">
|
|
<description summary="Destroy the wp_text_input">
|
|
Destroy the wp_text_input object. Also disables all surfaces enabled
|
|
through this wp_text_input object.
|
|
</description>
|
|
</request>
|
|
|
|
<request name="enable">
|
|
<description summary="Request text input to be enabled">
|
|
Requests text input on the surface previously obtained from the enter
|
|
event.
|
|
|
|
This request must be issued every time the active text input changes
|
|
to a new one, including within the current surface. Use
|
|
zwp_text_input_v3.disable when there is no longer any input focus on
|
|
the current surface.
|
|
|
|
Clients must not enable more than one text input on the single seat
|
|
and should disable the current text input before enabling the new one.
|
|
At most one instance of text input may be in enabled state per instance,
|
|
Requests to enable the another text input when some text input is active
|
|
must be ignored by compositor.
|
|
|
|
This request resets all state associated with previous enable, disable,
|
|
set_surrounding_text, set_text_change_cause, set_content_type, and
|
|
set_cursor_rectangle requests, as well as the state associated with
|
|
preedit_string, commit_string, and delete_surrounding_text events.
|
|
|
|
The set_surrounding_text, set_content_type and set_cursor_rectangle
|
|
requests must follow if the text input supports the necessary
|
|
functionality.
|
|
|
|
State set with this request is double-buffered. It will get applied on
|
|
the next zwp_text_input_v3.commit request, and stay valid until the
|
|
next committed enable or disable request.
|
|
|
|
The changes must be applied by the compositor after issuing a
|
|
zwp_text_input_v3.commit request.
|
|
</description>
|
|
</request>
|
|
|
|
<request name="disable">
|
|
<description summary="Disable text input on a surface">
|
|
Explicitly disable text input on the current surface (typically when
|
|
there is no focus on any text entry inside the surface).
|
|
|
|
State set with this request is double-buffered. It will get applied on
|
|
the next zwp_text_input_v3.commit request.
|
|
</description>
|
|
</request>
|
|
|
|
<request name="set_surrounding_text">
|
|
<description summary="sets the surrounding text">
|
|
Sets the surrounding plain text around the input, excluding the preedit
|
|
text.
|
|
|
|
The client should notify the compositor of any changes in any of the
|
|
values carried with this request, including changes caused by handling
|
|
incoming text-input events as well as changes caused by other
|
|
mechanisms like keyboard typing.
|
|
|
|
If the client is unaware of the text around the cursor, it should not
|
|
issue this request, to signify lack of support to the compositor.
|
|
|
|
Text is UTF-8 encoded, and should include the cursor position, the
|
|
complete selection and additional characters before and after them.
|
|
There is a maximum length of wayland messages, so text can not be
|
|
longer than 4000 bytes.
|
|
|
|
Cursor is the byte offset of the cursor within text buffer.
|
|
|
|
Anchor is the byte offset of the selection anchor within text buffer.
|
|
If there is no selected text, anchor is the same as cursor.
|
|
|
|
If any preedit text is present, it is replaced with a cursor for the
|
|
purpose of this event.
|
|
|
|
Values set with this request are double-buffered. They will get applied
|
|
on the next zwp_text_input_v3.commit request, and stay valid until the
|
|
next committed enable or disable request.
|
|
|
|
The initial state for affected fields is empty, meaning that the text
|
|
input does not support sending surrounding text. If the empty values
|
|
get applied, subsequent attempts to change them may have no effect.
|
|
</description>
|
|
<arg name="text" type="string"/>
|
|
<arg name="cursor" type="int"/>
|
|
<arg name="anchor" type="int"/>
|
|
</request>
|
|
|
|
<enum name="change_cause">
|
|
<description summary="text change reason">
|
|
Reason for the change of surrounding text or cursor posision.
|
|
</description>
|
|
<entry name="input_method" value="0" summary="input method caused the change"/>
|
|
<entry name="other" value="1" summary="something else than the input method caused the change"/>
|
|
</enum>
|
|
|
|
<request name="set_text_change_cause">
|
|
<description summary="indicates the cause of surrounding text change">
|
|
Tells the compositor why the text surrounding the cursor changed.
|
|
|
|
Whenever the client detects an external change in text, cursor, or
|
|
anchor posision, it must issue this request to the compositor. This
|
|
request is intended to give the input method a chance to update the
|
|
preedit text in an appropriate way, e.g. by removing it when the user
|
|
starts typing with a keyboard.
|
|
|
|
cause describes the source of the change.
|
|
|
|
The value set with this request is double-buffered. It must be applied
|
|
and reset to initial at the next zwp_text_input_v3.commit request.
|
|
|
|
The initial value of cause is input_method.
|
|
</description>
|
|
<arg name="cause" type="uint" enum="change_cause"/>
|
|
</request>
|
|
|
|
<enum name="content_hint" bitfield="true">
|
|
<description summary="content hint">
|
|
Content hint is a bitmask to allow to modify the behavior of the text
|
|
input.
|
|
</description>
|
|
<entry name="none" value="0x0" summary="no special behavior"/>
|
|
<entry name="completion" value="0x1" summary="suggest word completions"/>
|
|
<entry name="spellcheck" value="0x2" summary="suggest word corrections"/>
|
|
<entry name="auto_capitalization" value="0x4" summary="switch to uppercase letters at the start of a sentence"/>
|
|
<entry name="lowercase" value="0x8" summary="prefer lowercase letters"/>
|
|
<entry name="uppercase" value="0x10" summary="prefer uppercase letters"/>
|
|
<entry name="titlecase" value="0x20" summary="prefer casing for titles and headings (can be language dependent)"/>
|
|
<entry name="hidden_text" value="0x40" summary="characters should be hidden"/>
|
|
<entry name="sensitive_data" value="0x80" summary="typed text should not be stored"/>
|
|
<entry name="latin" value="0x100" summary="just Latin characters should be entered"/>
|
|
<entry name="multiline" value="0x200" summary="the text input is multiline"/>
|
|
</enum>
|
|
|
|
<enum name="content_purpose">
|
|
<description summary="content purpose">
|
|
The content purpose allows to specify the primary purpose of a text
|
|
input.
|
|
|
|
This allows an input method to show special purpose input panels with
|
|
extra characters or to disallow some characters.
|
|
</description>
|
|
<entry name="normal" value="0" summary="default input, allowing all characters"/>
|
|
<entry name="alpha" value="1" summary="allow only alphabetic characters"/>
|
|
<entry name="digits" value="2" summary="allow only digits"/>
|
|
<entry name="number" value="3" summary="input a number (including decimal separator and sign)"/>
|
|
<entry name="phone" value="4" summary="input a phone number"/>
|
|
<entry name="url" value="5" summary="input an URL"/>
|
|
<entry name="email" value="6" summary="input an email address"/>
|
|
<entry name="name" value="7" summary="input a name of a person"/>
|
|
<entry name="password" value="8" summary="input a password (combine with sensitive_data hint)"/>
|
|
<entry name="pin" value="9" summary="input is a numeric password (combine with sensitive_data hint)"/>
|
|
<entry name="date" value="10" summary="input a date"/>
|
|
<entry name="time" value="11" summary="input a time"/>
|
|
<entry name="datetime" value="12" summary="input a date and time"/>
|
|
<entry name="terminal" value="13" summary="input for a terminal"/>
|
|
</enum>
|
|
|
|
<request name="set_content_type">
|
|
<description summary="set content purpose and hint">
|
|
Sets the content purpose and content hint. While the purpose is the
|
|
basic purpose of an input field, the hint flags allow to modify some of
|
|
the behavior.
|
|
|
|
Values set with this request are double-buffered. They will get applied
|
|
on the next zwp_text_input_v3.commit request.
|
|
Subsequent attempts to update them may have no effect. The values
|
|
remain valid until the next committed enable or disable request.
|
|
|
|
The initial value for hint is none, and the initial value for purpose
|
|
is normal.
|
|
</description>
|
|
<arg name="hint" type="uint" enum="content_hint"/>
|
|
<arg name="purpose" type="uint" enum="content_purpose"/>
|
|
</request>
|
|
|
|
<request name="set_cursor_rectangle">
|
|
<description summary="set cursor position">
|
|
Marks an area around the cursor as a x, y, width, height rectangle in
|
|
surface local coordinates.
|
|
|
|
Allows the compositor to put a window with word suggestions near the
|
|
cursor, without obstructing the text being input.
|
|
|
|
If the client is unaware of the position of edited text, it should not
|
|
issue this request, to signify lack of support to the compositor.
|
|
|
|
Values set with this request are double-buffered. They will get applied
|
|
on the next zwp_text_input_v3.commit request, and stay valid until the
|
|
next committed enable or disable request.
|
|
|
|
The initial values describing a cursor rectangle are empty. That means
|
|
the text input does not support describing the cursor area. If the
|
|
empty values get applied, subsequent attempts to change them may have
|
|
no effect.
|
|
</description>
|
|
<arg name="x" type="int"/>
|
|
<arg name="y" type="int"/>
|
|
<arg name="width" type="int"/>
|
|
<arg name="height" type="int"/>
|
|
</request>
|
|
|
|
<request name="commit">
|
|
<description summary="commit state">
|
|
Atomically applies state changes recently sent to the compositor.
|
|
|
|
The commit request establishes and updates the state of the client, and
|
|
must be issued after any changes to apply them.
|
|
|
|
Text input state (enabled status, content purpose, content hint,
|
|
surrounding text and change cause, cursor rectangle) is conceptually
|
|
double-buffered within the context of a text input, i.e. between a
|
|
committed enable request and the following committed enable or disable
|
|
request.
|
|
|
|
Protocol requests modify the pending state, as opposed to the current
|
|
state in use by the input method. A commit request atomically applies
|
|
all pending state, replacing the current state. After commit, the new
|
|
pending state is as documented for each related request.
|
|
|
|
Requests are applied in the order of arrival.
|
|
|
|
Neither current nor pending state are modified unless noted otherwise.
|
|
|
|
The compositor must count the number of commit requests coming from
|
|
each zwp_text_input_v3 object and use the count as the serial in done
|
|
events.
|
|
</description>
|
|
</request>
|
|
|
|
<event name="enter">
|
|
<description summary="enter event">
|
|
Notification that this seat's text-input focus is on a certain surface.
|
|
|
|
If client has created multiple text input objects, compositor must send
|
|
this event to all of them.
|
|
|
|
When the seat has the keyboard capability the text-input focus follows
|
|
the keyboard focus. This event sets the current surface for the
|
|
text-input object.
|
|
</description>
|
|
<arg name="surface" type="object" interface="wl_surface"/>
|
|
</event>
|
|
|
|
<event name="leave">
|
|
<description summary="leave event">
|
|
Notification that this seat's text-input focus is no longer on a
|
|
certain surface. The client should reset any preedit string previously
|
|
set.
|
|
|
|
The leave notification clears the current surface. It is sent before
|
|
the enter notification for the new focus. After leave event, compositor
|
|
must ignore requests from any text input instances until next enter
|
|
event.
|
|
|
|
When the seat has the keyboard capability the text-input focus follows
|
|
the keyboard focus.
|
|
</description>
|
|
<arg name="surface" type="object" interface="wl_surface"/>
|
|
</event>
|
|
|
|
<event name="preedit_string">
|
|
<description summary="pre-edit">
|
|
Notify when a new composing text (pre-edit) should be set at the
|
|
current cursor position. Any previously set composing text must be
|
|
removed. Any previously existing selected text must be removed.
|
|
|
|
The argument text contains the pre-edit string buffer.
|
|
|
|
The parameters cursor_begin and cursor_end are counted in bytes
|
|
relative to the beginning of the submitted text buffer. Cursor should
|
|
be hidden when both are equal to -1.
|
|
|
|
They could be represented by the client as a line if both values are
|
|
the same, or as a text highlight otherwise.
|
|
|
|
Values set with this event are double-buffered. They must be applied
|
|
and reset to initial on the next zwp_text_input_v3.done event.
|
|
|
|
The initial value of text is an empty string, and cursor_begin,
|
|
cursor_end and cursor_hidden are all 0.
|
|
</description>
|
|
<arg name="text" type="string" allow-null="true"/>
|
|
<arg name="cursor_begin" type="int"/>
|
|
<arg name="cursor_end" type="int"/>
|
|
</event>
|
|
|
|
<event name="commit_string">
|
|
<description summary="text commit">
|
|
Notify when text should be inserted into the editor widget. The text to
|
|
commit could be either just a single character after a key press or the
|
|
result of some composing (pre-edit).
|
|
|
|
Values set with this event are double-buffered. They must be applied
|
|
and reset to initial on the next zwp_text_input_v3.done event.
|
|
|
|
The initial value of text is an empty string.
|
|
</description>
|
|
<arg name="text" type="string" allow-null="true"/>
|
|
</event>
|
|
|
|
<event name="delete_surrounding_text">
|
|
<description summary="delete surrounding text">
|
|
Notify when the text around the current cursor position should be
|
|
deleted.
|
|
|
|
Before_length and after_length are the number of bytes before and after
|
|
the current cursor index (excluding the selection) to delete.
|
|
|
|
If a preedit text is present, in effect before_length is counted from
|
|
the beginning of it, and after_length from its end (see done event
|
|
sequence).
|
|
|
|
Values set with this event are double-buffered. They must be applied
|
|
and reset to initial on the next zwp_text_input_v3.done event.
|
|
|
|
The initial values of both before_length and after_length are 0.
|
|
</description>
|
|
<arg name="before_length" type="uint" summary="length of text before current cursor position"/>
|
|
<arg name="after_length" type="uint" summary="length of text after current cursor position"/>
|
|
</event>
|
|
|
|
<event name="done">
|
|
<description summary="apply changes">
|
|
Instruct the application to apply changes to state requested by the
|
|
preedit_string, commit_string and delete_surrounding_text events. The
|
|
state relating to these events is double-buffered, and each one
|
|
modifies the pending state. This event replaces the current state with
|
|
the pending state.
|
|
|
|
The application must proceed by evaluating the changes in the following
|
|
order:
|
|
|
|
1. Replace existing preedit string with the cursor.
|
|
2. Delete requested surrounding text.
|
|
3. Insert commit string with the cursor at its end.
|
|
4. Calculate surrounding text to send.
|
|
5. Insert new preedit text in cursor position.
|
|
6. Place cursor inside preedit text.
|
|
|
|
The serial number reflects the last state of the zwp_text_input_v3
|
|
object known to the compositor. The value of the serial argument must
|
|
be equal to the number of commit requests already issued on that object.
|
|
|
|
When the client receives a done event with a serial different than the
|
|
number of past commit requests, it must proceed with evaluating and
|
|
applying the changes as normal, except it should not change the current
|
|
state of the zwp_text_input_v3 object. All pending state requests
|
|
(set_surrounding_text, set_content_type and set_cursor_rectangle) on
|
|
the zwp_text_input_v3 object should be sent and committed after
|
|
receiving a zwp_text_input_v3.done event with a matching serial.
|
|
</description>
|
|
<arg name="serial" type="uint"/>
|
|
</event>
|
|
</interface>
|
|
|
|
<interface name="zwp_text_input_manager_v3" version="1">
|
|
<description summary="text input manager">
|
|
A factory for text-input objects. This object is a global singleton.
|
|
</description>
|
|
|
|
<request name="destroy" type="destructor">
|
|
<description summary="Destroy the wp_text_input_manager">
|
|
Destroy the wp_text_input_manager object.
|
|
</description>
|
|
</request>
|
|
|
|
<request name="get_text_input">
|
|
<description summary="create a new text input object">
|
|
Creates a new text-input object for a given seat.
|
|
</description>
|
|
<arg name="id" type="new_id" interface="zwp_text_input_v3"/>
|
|
<arg name="seat" type="object" interface="wl_seat"/>
|
|
</request>
|
|
</interface>
|
|
</protocol>
|