weston/protocol/text.xml

<protocol name="text">
  <interface name="text_model" version="1">
    <description summary="text model">
      A model for text input. Adds support for text input and input methods to
      applications. A text_model object is created from a text_model_factory and
      corresponds typically to a text entry in an application. Requests are used
      to activate/deactivate the model and set information like surrounding and
      selected text or the content type. The information about entered text is
      sent to the model via the pre-edit and commit events. Using this interface
      removes the need for applications to directly process hardware key events
      and compose text out of them.
    </description>
    <request name="set_surrounding_text">
      <description summary="sets the surrounding text">
        Sets the plain surrounding text around the input position. Cursor is the
        position within the surrounding text. Anchor is the position of the
        selection anchor within the surrounding text. If there is no selected
        text anchor is the same as cursor.
      </description>
      <arg name="text" type="string"/>
      <arg name="cursor" type="uint"/>
      <arg name="anchor" type="uint"/>
    </request>
    <request name="activate">
      <description summary="request activation">
        Requests the model to be activated (typically when the text entry gets
        focus). The seat argument is a wl_seat which maintains the focus for
        this activation. The surface argument is a wl_surface assigned to the
        model and tracked for focus lost. The activated event is emitted on
        successful activation.
      </description>
      <arg name="seat" type="object" interface="wl_seat"/>
      <arg name="surface" type="object" interface="wl_surface"/>
    </request>
    <request name="deactivate">
      <description summary="request deactivation">
        Requests the model to be deactivated (typically when the text entry
        lost focus). The seat argument is a wl_seat which was used for
        activation.
      </description>
      <arg name="seat" type="object" interface="wl_seat"/>
    </request>
    <request name="set_micro_focus">
      <arg name="x" type="int"/>
      <arg name="y" type="int"/>
      <arg name="width" type="int"/>
      <arg name="height" type="int"/>
    </request>
    <request name="set_preedit"/>
    <request name="set_content_type"/>

    <event name="commit_string">
      <arg name="text" type="string"/>
      <arg name="index" type="uint"/>
    </event>
    <event name="preedit_string">
      <arg name="text" type="string"/>
      <arg name="index" type="uint"/>
    </event>
    <event name="preedit_styling"/>
    <event name="key"/>
    <event name="selection_replacement"/>
    <event name="direction"/>
    <event name="locale"/>
    <event name="activated">
      <description summary="activated event">
        Notify the model when it is activated. Typically in response to an
        activate request.
      </description>
    </event>
    <event name="deactivated">
      <description summary="deactivated event">
        Notify the model when it is deactivated. Either in response to a
        deactivate request or when the assigned surface lost focus or was
        destroyed.
      </description>
    </event>
  </interface>

  <interface name="text_model_factory" version="1">
    <description summary="text model factory">
      A factory for text models. This object is a singleton global.
    </description>
    <request name="create_text_model">
      <description summary="create text model">
        Creates a new text model object.
      </description>
      <arg name="id" type="new_id" interface="text_model"/>
    </request>
  </interface>

  <interface name="input_method_context" version="1">
    <description summary="input method context">
      Corresponds to a text model on input method side. An input method context
      is created on text mode activation on the input method side. It allows to
      receive information about the text model from the application via events.
      Input method contexts do not keep state after deactivation and should be
      destroyed after deactivation is handled.
    </description>
    <request name="destroy" type="destructor"/>
    <request name="commit_string">
      <description summary="commit string">
        Send the commit string text to the applications text model.
      </description>
      <arg name="text" type="string"/>
      <arg name="index" type="uint"/>
    </request>
    <event name="surrounding_text">
      <description summary="surrounding text event">
        The plain surrounding text around the input position. Cursor is the
        position within the surrounding text. Anchor is the position of the
        selection anchor within the surrounding text. If there is no selected
        text anchor is the same as cursor.
      </description>
      <arg name="text" type="string"/>
      <arg name="cursor" type="uint"/>
      <arg name="anchor" type="uint"/>
    </event>
  </interface>

  <interface name="input_method" version="1">
    <description summary="input method">
      An input method object is responsible to compose text in response to
      input from hardware or virtual keyboards. There is one input method
      object per seat. On activate there is a new input method context object
      created which allows the input method to communicate with the text model.
    </description>
    <event name="activate">
      <description summary="activate event">
        A text model was activated. Creates an input method context object
        which allows communication with the text model.
      </description>
      <arg name="id" type="new_id" interface="input_method_context"/>
    </event>
    <event name="deactivate">
      <description summary="activate event">
        The text model corresponding to the context argument was deactivated.
        The input method context should be destroyed after deactivation is
        handled.
      </description>
      <arg name="context" type="object" interface="input_method_context"/>
    </event>
  </interface>
</protocol>