Here we create a new client/compositor interface in weston to allow clients to report their x/y cursor position to the compositor. These values are then used to center the zoom area on this point. This is useful for everyone, especially people who are visually impaired.
Scott Moreau
12 years ago
committed by
Kristian Høgsberg
parent
d64bdf4755
commit
7a1b32a198
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<protocol name="text_cursor_position"> |
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|
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<interface name="text_cursor_position" version="1"> |
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<request name="notify"> |
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<arg name="surface" type="object" interface="wl_surface"/> |
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<arg name="x" type="uint"/> |
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<arg name="y" type="uint"/> |
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</request> |
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</interface> |
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</protocol> |
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/*
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* Copyright © 2011 Intel Corporation |
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* Copyright © 2012 Scott Moreau |
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* |
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* Permission to use, copy, modify, distribute, and sell this software and |
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* its documentation for any purpose is hereby granted without fee, provided |
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* that the above copyright notice appear in all copies and that both that |
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* copyright notice and this permission notice appear in supporting |
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* documentation, and that the name of the copyright holders not be used in |
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* advertising or publicity pertaining to distribution of the software |
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* without specific, written prior permission. The copyright holders make |
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* no representations about the suitability of this software for any |
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* purpose. It is provided "as is" without express or implied warranty. |
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* |
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS |
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY |
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER |
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF |
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* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include <stdlib.h> |
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#include "compositor.h" |
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#include "text-cursor-position-server-protocol.h" |
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struct text_cursor_position { |
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struct wl_object base; |
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struct weston_compositor *ec; |
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struct wl_global *global; |
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struct wl_listener destroy_listener; |
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}; |
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static void |
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text_cursor_position_notify(struct wl_client *client, |
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struct wl_resource *resource, |
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struct wl_resource *surface_resource, |
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uint32_t x, uint32_t y) |
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{ |
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weston_text_cursor_position_notify((struct weston_surface *) surface_resource, x, y); |
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} |
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struct text_cursor_position_interface text_cursor_position_implementation = { |
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text_cursor_position_notify |
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}; |
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static void |
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bind_text_cursor_position(struct wl_client *client, |
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void *data, uint32_t version, uint32_t id) |
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{ |
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wl_client_add_object(client, &text_cursor_position_interface, |
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&text_cursor_position_implementation, id, data); |
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} |
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static void |
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text_cursor_position_notifier_destroy(struct wl_listener *listener, void *data) |
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{ |
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struct text_cursor_position *text_cursor_position = |
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container_of(listener, struct text_cursor_position, destroy_listener); |
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wl_display_remove_global(text_cursor_position->ec->wl_display, text_cursor_position->global); |
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free(text_cursor_position); |
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} |
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void |
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text_cursor_position_notifier_create(struct weston_compositor *ec) |
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{ |
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struct text_cursor_position *text_cursor_position; |
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text_cursor_position = malloc(sizeof *text_cursor_position); |
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if (text_cursor_position == NULL) |
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return; |
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text_cursor_position->base.interface = &text_cursor_position_interface; |
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text_cursor_position->base.implementation = |
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(void(**)(void)) &text_cursor_position_implementation; |
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text_cursor_position->ec = ec; |
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text_cursor_position->global = wl_display_add_global(ec->wl_display, |
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&text_cursor_position_interface, |
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text_cursor_position, bind_text_cursor_position); |
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text_cursor_position->destroy_listener.notify = text_cursor_position_notifier_destroy; |
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wl_signal_add(&ec->destroy_signal, &text_cursor_position->destroy_listener); |
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} |
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