weston/desktop-shell/input-panel.c
U. Artie Eoff c4c7a4f921 input-panel: validate return value of get_default_view
Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>
2014-01-19 22:04:56 -08:00

359 lines
10 KiB
C

/*
* Copyright © 2010-2012 Intel Corporation
* Copyright © 2011-2012 Collabora, Ltd.
* Copyright © 2013 Raspberry Pi Foundation
*
* 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.
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "shell.h"
#include "desktop-shell-server-protocol.h"
#include "input-method-server-protocol.h"
struct input_panel_surface {
struct wl_resource *resource;
struct wl_signal destroy_signal;
struct desktop_shell *shell;
struct wl_list link;
struct weston_surface *surface;
struct weston_view *view;
struct wl_listener surface_destroy_listener;
struct weston_output *output;
uint32_t panel;
};
static void
show_input_panels(struct wl_listener *listener, void *data)
{
struct desktop_shell *shell =
container_of(listener, struct desktop_shell,
show_input_panel_listener);
struct input_panel_surface *ipsurf, *next;
shell->text_input.surface = (struct weston_surface*)data;
if (shell->showing_input_panels)
return;
shell->showing_input_panels = true;
if (!shell->locked)
wl_list_insert(&shell->panel_layer.link,
&shell->input_panel_layer.link);
wl_list_for_each_safe(ipsurf, next,
&shell->input_panel.surfaces, link) {
if (ipsurf->surface->width == 0)
continue;
wl_list_insert(&shell->input_panel_layer.view_list,
&ipsurf->view->layer_link);
weston_view_geometry_dirty(ipsurf->view);
weston_view_update_transform(ipsurf->view);
weston_surface_damage(ipsurf->surface);
weston_slide_run(ipsurf->view, ipsurf->surface->height * 0.9,
0, NULL, NULL);
}
}
static void
hide_input_panels(struct wl_listener *listener, void *data)
{
struct desktop_shell *shell =
container_of(listener, struct desktop_shell,
hide_input_panel_listener);
struct weston_view *view, *next;
if (!shell->showing_input_panels)
return;
shell->showing_input_panels = false;
if (!shell->locked)
wl_list_remove(&shell->input_panel_layer.link);
wl_list_for_each_safe(view, next,
&shell->input_panel_layer.view_list, layer_link)
weston_view_unmap(view);
}
static void
update_input_panels(struct wl_listener *listener, void *data)
{
struct desktop_shell *shell =
container_of(listener, struct desktop_shell,
update_input_panel_listener);
memcpy(&shell->text_input.cursor_rectangle, data, sizeof(pixman_box32_t));
}
static void
input_panel_configure(struct weston_surface *surface, int32_t sx, int32_t sy)
{
struct input_panel_surface *ip_surface = surface->configure_private;
struct desktop_shell *shell = ip_surface->shell;
struct weston_view *view;
float x, y;
if (surface->width == 0)
return;
if (ip_surface->panel) {
view = get_default_view(shell->text_input.surface);
if (view == NULL)
return;
x = view->geometry.x + shell->text_input.cursor_rectangle.x2;
y = view->geometry.y + shell->text_input.cursor_rectangle.y2;
} else {
x = ip_surface->output->x + (ip_surface->output->width - surface->width) / 2;
y = ip_surface->output->y + ip_surface->output->height - surface->height;
}
weston_view_set_position(ip_surface->view, x, y);
if (!weston_surface_is_mapped(surface) && shell->showing_input_panels) {
wl_list_insert(&shell->input_panel_layer.view_list,
&ip_surface->view->layer_link);
weston_view_update_transform(ip_surface->view);
weston_surface_damage(surface);
weston_slide_run(ip_surface->view, ip_surface->view->surface->height * 0.9, 0, NULL, NULL);
}
}
static void
destroy_input_panel_surface(struct input_panel_surface *input_panel_surface)
{
wl_signal_emit(&input_panel_surface->destroy_signal, input_panel_surface);
wl_list_remove(&input_panel_surface->surface_destroy_listener.link);
wl_list_remove(&input_panel_surface->link);
input_panel_surface->surface->configure = NULL;
weston_view_destroy(input_panel_surface->view);
free(input_panel_surface);
}
static struct input_panel_surface *
get_input_panel_surface(struct weston_surface *surface)
{
if (surface->configure == input_panel_configure) {
return surface->configure_private;
} else {
return NULL;
}
}
static void
input_panel_handle_surface_destroy(struct wl_listener *listener, void *data)
{
struct input_panel_surface *ipsurface = container_of(listener,
struct input_panel_surface,
surface_destroy_listener);
if (ipsurface->resource) {
wl_resource_destroy(ipsurface->resource);
} else {
destroy_input_panel_surface(ipsurface);
}
}
static struct input_panel_surface *
create_input_panel_surface(struct desktop_shell *shell,
struct weston_surface *surface)
{
struct input_panel_surface *input_panel_surface;
input_panel_surface = calloc(1, sizeof *input_panel_surface);
if (!input_panel_surface)
return NULL;
surface->configure = input_panel_configure;
surface->configure_private = input_panel_surface;
input_panel_surface->shell = shell;
input_panel_surface->surface = surface;
input_panel_surface->view = weston_view_create(surface);
wl_signal_init(&input_panel_surface->destroy_signal);
input_panel_surface->surface_destroy_listener.notify = input_panel_handle_surface_destroy;
wl_signal_add(&surface->destroy_signal,
&input_panel_surface->surface_destroy_listener);
wl_list_init(&input_panel_surface->link);
return input_panel_surface;
}
static void
input_panel_surface_set_toplevel(struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *output_resource,
uint32_t position)
{
struct input_panel_surface *input_panel_surface =
wl_resource_get_user_data(resource);
struct desktop_shell *shell = input_panel_surface->shell;
wl_list_insert(&shell->input_panel.surfaces,
&input_panel_surface->link);
input_panel_surface->output = wl_resource_get_user_data(output_resource);
input_panel_surface->panel = 0;
}
static void
input_panel_surface_set_overlay_panel(struct wl_client *client,
struct wl_resource *resource)
{
struct input_panel_surface *input_panel_surface =
wl_resource_get_user_data(resource);
struct desktop_shell *shell = input_panel_surface->shell;
wl_list_insert(&shell->input_panel.surfaces,
&input_panel_surface->link);
input_panel_surface->panel = 1;
}
static const struct wl_input_panel_surface_interface input_panel_surface_implementation = {
input_panel_surface_set_toplevel,
input_panel_surface_set_overlay_panel
};
static void
destroy_input_panel_surface_resource(struct wl_resource *resource)
{
struct input_panel_surface *ipsurf =
wl_resource_get_user_data(resource);
destroy_input_panel_surface(ipsurf);
}
static void
input_panel_get_input_panel_surface(struct wl_client *client,
struct wl_resource *resource,
uint32_t id,
struct wl_resource *surface_resource)
{
struct weston_surface *surface =
wl_resource_get_user_data(surface_resource);
struct desktop_shell *shell = wl_resource_get_user_data(resource);
struct input_panel_surface *ipsurf;
if (get_input_panel_surface(surface)) {
wl_resource_post_error(surface_resource,
WL_DISPLAY_ERROR_INVALID_OBJECT,
"wl_input_panel::get_input_panel_surface already requested");
return;
}
ipsurf = create_input_panel_surface(shell, surface);
if (!ipsurf) {
wl_resource_post_error(surface_resource,
WL_DISPLAY_ERROR_INVALID_OBJECT,
"surface->configure already set");
return;
}
ipsurf->resource =
wl_resource_create(client,
&wl_input_panel_surface_interface, 1, id);
wl_resource_set_implementation(ipsurf->resource,
&input_panel_surface_implementation,
ipsurf,
destroy_input_panel_surface_resource);
}
static const struct wl_input_panel_interface input_panel_implementation = {
input_panel_get_input_panel_surface
};
static void
unbind_input_panel(struct wl_resource *resource)
{
struct desktop_shell *shell = wl_resource_get_user_data(resource);
shell->input_panel.binding = NULL;
}
static void
bind_input_panel(struct wl_client *client,
void *data, uint32_t version, uint32_t id)
{
struct desktop_shell *shell = data;
struct wl_resource *resource;
resource = wl_resource_create(client,
&wl_input_panel_interface, 1, id);
if (shell->input_panel.binding == NULL) {
wl_resource_set_implementation(resource,
&input_panel_implementation,
shell, unbind_input_panel);
shell->input_panel.binding = resource;
return;
}
wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_OBJECT,
"interface object already bound");
wl_resource_destroy(resource);
}
void
input_panel_destroy(struct desktop_shell *shell)
{
wl_list_remove(&shell->show_input_panel_listener.link);
wl_list_remove(&shell->hide_input_panel_listener.link);
}
int
input_panel_setup(struct desktop_shell *shell)
{
struct weston_compositor *ec = shell->compositor;
shell->show_input_panel_listener.notify = show_input_panels;
wl_signal_add(&ec->show_input_panel_signal,
&shell->show_input_panel_listener);
shell->hide_input_panel_listener.notify = hide_input_panels;
wl_signal_add(&ec->hide_input_panel_signal,
&shell->hide_input_panel_listener);
shell->update_input_panel_listener.notify = update_input_panels;
wl_signal_add(&ec->update_input_panel_signal,
&shell->update_input_panel_listener);
wl_list_init(&shell->input_panel.surfaces);
if (wl_global_create(shell->compositor->wl_display,
&wl_input_panel_interface, 1,
shell, bind_input_panel) == NULL)
return -1;
return 0;
}