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@@ -0,0 +1,855 @@
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+/*
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+ * Copyright © 2001, 2007 Red Hat, Inc.
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+ * Copyright 2024 Igalia S.L.
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+ *
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+ * Permission to use, copy, modify, distribute, and sell this software and its
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+ * documentation for any purpose is hereby granted without fee, provided that
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+ * 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 Red Hat not be used in advertising or
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+ * publicity pertaining to distribution of the software without specific,
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+ * written prior permission. Red Hat makes no representations about the
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+ * suitability of this software for any purpose. It is provided "as is"
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+ * without express or implied warranty.
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+ *
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+ * RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
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+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL RED HAT
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+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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+ * OF 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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+ * Author: Owen Taylor, Red Hat, Inc.
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+ */
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+
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+#include "SDL_internal.h"
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+
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+#ifdef SDL_VIDEO_DRIVER_X11
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+
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+#include "SDL_x11video.h"
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+
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+#include <limits.h>
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include <string.h>
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+
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+#include "xsettings-client.h"
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+
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+struct _XSettingsClient
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+{
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+ Display *display;
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+ int screen;
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+ XSettingsNotifyFunc notify;
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+ XSettingsWatchFunc watch;
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+ void *cb_data;
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+
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+ XSettingsGrabFunc grab;
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+ XSettingsGrabFunc ungrab;
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+
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+ Window manager_window;
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+ Atom manager_atom;
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+ Atom selection_atom;
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+ Atom xsettings_atom;
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+
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+ XSettingsList *settings;
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+};
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+
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+static void
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+notify_changes (XSettingsClient *client,
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+ XSettingsList *old_list)
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+{
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+ XSettingsList *old_iter = old_list;
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+ XSettingsList *new_iter = client->settings;
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+
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+ if (!client->notify)
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+ return;
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+
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+ while (old_iter || new_iter)
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+ {
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+ int cmp;
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+
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+ if (old_iter && new_iter)
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+ cmp = strcmp (old_iter->setting->name, new_iter->setting->name);
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+ else if (old_iter)
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+ cmp = -1;
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+ else
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+ cmp = 1;
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+
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+ if (cmp < 0)
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+ {
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+ client->notify (old_iter->setting->name,
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+ XSETTINGS_ACTION_DELETED,
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+ NULL,
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+ client->cb_data);
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+ }
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+ else if (cmp == 0)
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+ {
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+ if (!xsettings_setting_equal (old_iter->setting,
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+ new_iter->setting))
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+ client->notify (old_iter->setting->name,
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+ XSETTINGS_ACTION_CHANGED,
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+ new_iter->setting,
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+ client->cb_data);
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+ }
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+ else
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+ {
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+ client->notify (new_iter->setting->name,
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+ XSETTINGS_ACTION_NEW,
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+ new_iter->setting,
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+ client->cb_data);
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+ }
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+
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+ if (old_iter)
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+ old_iter = old_iter->next;
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+ if (new_iter)
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+ new_iter = new_iter->next;
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+ }
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+}
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+
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+static int
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+ignore_errors (Display *display, XErrorEvent *event)
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+{
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+ return True;
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+}
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+
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+static char local_byte_order = '\0';
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+
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+#define BYTES_LEFT(buffer) ((buffer)->data + (buffer)->len - (buffer)->pos)
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+
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+static XSettingsResult
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+fetch_card16 (XSettingsBuffer *buffer,
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+ CARD16 *result)
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+{
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+ CARD16 x;
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+
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+ if (BYTES_LEFT (buffer) < 2)
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+ return XSETTINGS_ACCESS;
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+
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+ x = *(CARD16 *)buffer->pos;
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+ buffer->pos += 2;
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+
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+ if (buffer->byte_order == local_byte_order)
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+ *result = x;
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+ else
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+ *result = (x << 8) | (x >> 8);
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+
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+ return XSETTINGS_SUCCESS;
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+}
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+
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+static XSettingsResult
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+fetch_ushort (XSettingsBuffer *buffer,
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+ unsigned short *result)
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+{
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+ CARD16 x;
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+ XSettingsResult r;
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+
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+ r = fetch_card16 (buffer, &x);
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+ if (r == XSETTINGS_SUCCESS)
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+ *result = x;
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+
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+ return r;
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+}
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+
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+static XSettingsResult
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+fetch_card32 (XSettingsBuffer *buffer,
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+ CARD32 *result)
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+{
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+ CARD32 x;
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+
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+ if (BYTES_LEFT (buffer) < 4)
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+ return XSETTINGS_ACCESS;
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+
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+ x = *(CARD32 *)buffer->pos;
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+ buffer->pos += 4;
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+
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+ if (buffer->byte_order == local_byte_order)
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+ *result = x;
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+ else
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+ *result = (x << 24) | ((x & 0xff00) << 8) | ((x & 0xff0000) >> 8) | (x >> 24);
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+
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+ return XSETTINGS_SUCCESS;
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+}
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+
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+static XSettingsResult
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+fetch_card8 (XSettingsBuffer *buffer,
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+ CARD8 *result)
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+{
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+ if (BYTES_LEFT (buffer) < 1)
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+ return XSETTINGS_ACCESS;
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+
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+ *result = *(CARD8 *)buffer->pos;
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+ buffer->pos += 1;
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+
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+ return XSETTINGS_SUCCESS;
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+}
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+
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+#define XSETTINGS_PAD(n,m) ((n + m - 1) & (~(m-1)))
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+
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+static XSettingsList *
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+parse_settings (unsigned char *data,
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+ size_t len)
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+{
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+ XSettingsBuffer buffer;
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+ XSettingsResult result = XSETTINGS_SUCCESS;
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+ XSettingsList *settings = NULL;
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+ CARD32 serial;
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+ CARD32 n_entries;
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+ CARD32 i;
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+ XSettingsSetting *setting = NULL;
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+ char buffer_byte_order = '\0';
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+
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+ local_byte_order = xsettings_byte_order ();
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+
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+ buffer.pos = buffer.data = data;
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+ buffer.len = len;
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+ buffer.byte_order = '\0';
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+
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+ result = fetch_card8 (&buffer, (unsigned char *) &buffer_byte_order);
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+ if (buffer_byte_order != MSBFirst &&
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+ buffer_byte_order != LSBFirst)
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+ {
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+ fprintf (stderr, "Invalid byte order in XSETTINGS property\n");
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+ result = XSETTINGS_FAILED;
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+ goto out;
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+ }
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+
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+ buffer.byte_order = buffer_byte_order;
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+ buffer.pos += 3;
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+
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+ result = fetch_card32 (&buffer, &serial);
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+ if (result != XSETTINGS_SUCCESS)
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+ goto out;
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+
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+ result = fetch_card32 (&buffer, &n_entries);
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+ if (result != XSETTINGS_SUCCESS)
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+ goto out;
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+
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+ for (i = 0; i < n_entries; i++)
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+ {
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+ CARD8 type;
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+ CARD16 name_len;
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+ CARD32 v_int;
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+ size_t pad_len;
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+
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+ result = fetch_card8 (&buffer, &type);
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+ if (result != XSETTINGS_SUCCESS)
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+ goto out;
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+
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+ buffer.pos += 1;
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+
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+ result = fetch_card16 (&buffer, &name_len);
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+ if (result != XSETTINGS_SUCCESS)
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+ goto out;
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+
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+ pad_len = XSETTINGS_PAD(name_len, 4);
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+ if (BYTES_LEFT (&buffer) < pad_len)
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+ {
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+ result = XSETTINGS_ACCESS;
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+ goto out;
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+ }
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+
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+ setting = malloc (sizeof *setting);
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+ if (!setting)
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+ {
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+ result = XSETTINGS_NO_MEM;
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+ goto out;
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+ }
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+ setting->type = XSETTINGS_TYPE_INT; /* No allocated memory */
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+
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+ setting->name = malloc (name_len + 1);
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+ if (!setting->name)
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+ {
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+ result = XSETTINGS_NO_MEM;
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+ goto out;
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+ }
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+
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+ memcpy (setting->name, buffer.pos, name_len);
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+ setting->name[name_len] = '\0';
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+ buffer.pos += pad_len;
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+
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+ result = fetch_card32 (&buffer, &v_int);
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+ if (result != XSETTINGS_SUCCESS)
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+ goto out;
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+ setting->last_change_serial = v_int;
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+
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+ switch (type)
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+ {
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+ case XSETTINGS_TYPE_INT:
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+ result = fetch_card32 (&buffer, &v_int);
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+ if (result != XSETTINGS_SUCCESS)
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+ goto out;
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+
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+ setting->data.v_int = (INT32)v_int;
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+ break;
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+ case XSETTINGS_TYPE_STRING:
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+ result = fetch_card32 (&buffer, &v_int);
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+ if (result != XSETTINGS_SUCCESS)
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+ goto out;
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+
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+ pad_len = XSETTINGS_PAD (v_int, 4);
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+ if (v_int + 1 == 0 || /* Guard against wrap-around */
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+ BYTES_LEFT (&buffer) < pad_len)
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+ {
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+ result = XSETTINGS_ACCESS;
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+ goto out;
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+ }
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+
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+ setting->data.v_string = malloc (v_int + 1);
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+ if (!setting->data.v_string)
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+ {
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+ result = XSETTINGS_NO_MEM;
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+ goto out;
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+ }
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+
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+ memcpy (setting->data.v_string, buffer.pos, v_int);
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+ setting->data.v_string[v_int] = '\0';
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+ buffer.pos += pad_len;
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+
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+ break;
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+ case XSETTINGS_TYPE_COLOR:
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+ result = fetch_ushort (&buffer, &setting->data.v_color.red);
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+ if (result != XSETTINGS_SUCCESS)
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+ goto out;
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+ result = fetch_ushort (&buffer, &setting->data.v_color.green);
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+ if (result != XSETTINGS_SUCCESS)
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+ goto out;
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+ result = fetch_ushort (&buffer, &setting->data.v_color.blue);
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+ if (result != XSETTINGS_SUCCESS)
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+ goto out;
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+ result = fetch_ushort (&buffer, &setting->data.v_color.alpha);
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+ if (result != XSETTINGS_SUCCESS)
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+ goto out;
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+
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+ break;
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+ default:
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+ /* Quietly ignore unknown types */
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+ break;
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+ }
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+
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+ setting->type = type;
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+
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+ result = xsettings_list_insert (&settings, setting);
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+ if (result != XSETTINGS_SUCCESS)
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+ goto out;
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+
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+ setting = NULL;
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+ }
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+
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+ out:
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+
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+ if (result != XSETTINGS_SUCCESS)
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+ {
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+ switch (result)
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+ {
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+ case XSETTINGS_NO_MEM:
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+ fprintf(stderr, "Out of memory reading XSETTINGS property\n");
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+ break;
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+ case XSETTINGS_ACCESS:
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+ fprintf(stderr, "Invalid XSETTINGS property (read off end)\n");
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+ break;
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+ case XSETTINGS_DUPLICATE_ENTRY:
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+ fprintf (stderr, "Duplicate XSETTINGS entry for '%s'\n", setting->name);
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+ SDL_FALLTHROUGH;
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+ case XSETTINGS_FAILED:
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+ SDL_FALLTHROUGH;
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+ case XSETTINGS_SUCCESS:
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+ SDL_FALLTHROUGH;
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+ case XSETTINGS_NO_ENTRY:
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+ break;
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+ }
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+
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+ if (setting)
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+ xsettings_setting_free (setting);
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+
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+ xsettings_list_free (settings);
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+ settings = NULL;
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+
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+ }
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+
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+ return settings;
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+}
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+
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+static void
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+read_settings (XSettingsClient *client)
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+{
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+ Atom type;
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+ int format;
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+ unsigned long n_items;
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+ unsigned long bytes_after;
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+ unsigned char *data;
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+ int result;
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+
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+ int (*old_handler) (Display *, XErrorEvent *);
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+
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+ XSettingsList *old_list = client->settings;
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+
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+ client->settings = NULL;
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+
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+ if (client->manager_window)
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+ {
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+ old_handler = X11_XSetErrorHandler (ignore_errors);
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+ result = X11_XGetWindowProperty (client->display, client->manager_window,
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+ client->xsettings_atom, 0, LONG_MAX,
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+ False, client->xsettings_atom,
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+ &type, &format, &n_items, &bytes_after, &data);
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+ X11_XSetErrorHandler (old_handler);
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+
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+ if (result == Success && type != None)
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+ {
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+ if (type != client->xsettings_atom)
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+ {
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+ fprintf (stderr, "Invalid type for XSETTINGS property");
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+ }
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+ else if (format != 8)
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+ {
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+ fprintf (stderr, "Invalid format for XSETTINGS property %d", format);
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+ }
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+ else
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+ client->settings = parse_settings (data, n_items);
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+
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+ X11_XFree (data);
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+ }
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+ }
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+
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+ notify_changes (client, old_list);
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+ xsettings_list_free (old_list);
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+}
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+
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+static void
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+add_events (Display *display,
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+ Window window,
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+ long mask)
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+{
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+ XWindowAttributes attr;
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+
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+ X11_XGetWindowAttributes (display, window, &attr);
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+ X11_XSelectInput (display, window, attr.your_event_mask | mask);
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+}
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+
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+static void
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+check_manager_window (XSettingsClient *client)
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+{
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+ if (client->manager_window && client->watch)
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+ client->watch (client->manager_window, False, 0, client->cb_data);
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+
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+ if (client->grab)
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+ client->grab (client->display);
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+ else
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+ X11_XGrabServer (client->display);
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+
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+ client->manager_window = X11_XGetSelectionOwner (client->display,
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+ client->selection_atom);
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+ if (client->manager_window)
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+ X11_XSelectInput (client->display, client->manager_window,
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+ PropertyChangeMask | StructureNotifyMask);
|
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+
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|
|
+ if (client->ungrab)
|
|
|
+ client->ungrab (client->display);
|
|
|
+ else
|
|
|
+ X11_XUngrabServer (client->display);
|
|
|
+
|
|
|
+ X11_XFlush (client->display);
|
|
|
+
|
|
|
+ if (client->manager_window && client->watch)
|
|
|
+ {
|
|
|
+ if (!client->watch (client->manager_window, True,
|
|
|
+ PropertyChangeMask | StructureNotifyMask,
|
|
|
+ client->cb_data))
|
|
|
+ {
|
|
|
+ /* Inability to watch the window probably means that it was destroyed
|
|
|
+ * after we ungrabbed
|
|
|
+ */
|
|
|
+ client->manager_window = None;
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ read_settings (client);
|
|
|
+}
|
|
|
+
|
|
|
+XSettingsClient *
|
|
|
+xsettings_client_new (Display *display,
|
|
|
+ int screen,
|
|
|
+ XSettingsNotifyFunc notify,
|
|
|
+ XSettingsWatchFunc watch,
|
|
|
+ void *cb_data)
|
|
|
+{
|
|
|
+ return xsettings_client_new_with_grab_funcs (display, screen, notify, watch, cb_data,
|
|
|
+ NULL, NULL);
|
|
|
+}
|
|
|
+
|
|
|
+XSettingsClient *
|
|
|
+xsettings_client_new_with_grab_funcs (Display *display,
|
|
|
+ int screen,
|
|
|
+ XSettingsNotifyFunc notify,
|
|
|
+ XSettingsWatchFunc watch,
|
|
|
+ void *cb_data,
|
|
|
+ XSettingsGrabFunc grab,
|
|
|
+ XSettingsGrabFunc ungrab)
|
|
|
+{
|
|
|
+ XSettingsClient *client;
|
|
|
+ char buffer[256];
|
|
|
+ char *atom_names[3];
|
|
|
+ Atom atoms[3];
|
|
|
+
|
|
|
+ client = malloc (sizeof *client);
|
|
|
+ if (!client)
|
|
|
+ return NULL;
|
|
|
+
|
|
|
+ client->display = display;
|
|
|
+ client->screen = screen;
|
|
|
+ client->notify = notify;
|
|
|
+ client->watch = watch;
|
|
|
+ client->cb_data = cb_data;
|
|
|
+ client->grab = grab;
|
|
|
+ client->ungrab = ungrab;
|
|
|
+
|
|
|
+ client->manager_window = None;
|
|
|
+ client->settings = NULL;
|
|
|
+
|
|
|
+ sprintf(buffer, "_XSETTINGS_S%d", screen);
|
|
|
+ atom_names[0] = buffer;
|
|
|
+ atom_names[1] = "_XSETTINGS_SETTINGS";
|
|
|
+ atom_names[2] = "MANAGER";
|
|
|
+
|
|
|
+#ifdef HAVE_XINTERNATOMS
|
|
|
+ XInternAtoms (display, atom_names, 3, False, atoms);
|
|
|
+#else
|
|
|
+ atoms[0] = X11_XInternAtom (display, atom_names[0], False);
|
|
|
+ atoms[1] = X11_XInternAtom (display, atom_names[1], False);
|
|
|
+ atoms[2] = X11_XInternAtom (display, atom_names[2], False);
|
|
|
+#endif
|
|
|
+
|
|
|
+ client->selection_atom = atoms[0];
|
|
|
+ client->xsettings_atom = atoms[1];
|
|
|
+ client->manager_atom = atoms[2];
|
|
|
+
|
|
|
+ /* Select on StructureNotify so we get MANAGER events
|
|
|
+ */
|
|
|
+ add_events (display, RootWindow (display, screen), StructureNotifyMask);
|
|
|
+
|
|
|
+ if (client->watch)
|
|
|
+ client->watch (RootWindow (display, screen), True, StructureNotifyMask,
|
|
|
+ client->cb_data);
|
|
|
+
|
|
|
+ check_manager_window (client);
|
|
|
+
|
|
|
+ return client;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+void
|
|
|
+xsettings_client_set_grab_func (XSettingsClient *client,
|
|
|
+ XSettingsGrabFunc grab)
|
|
|
+{
|
|
|
+ client->grab = grab;
|
|
|
+}
|
|
|
+
|
|
|
+void
|
|
|
+xsettings_client_set_ungrab_func (XSettingsClient *client,
|
|
|
+ XSettingsGrabFunc ungrab)
|
|
|
+{
|
|
|
+ client->ungrab = ungrab;
|
|
|
+}
|
|
|
+
|
|
|
+void
|
|
|
+xsettings_client_destroy (XSettingsClient *client)
|
|
|
+{
|
|
|
+ if (client->watch)
|
|
|
+ client->watch (RootWindow (client->display, client->screen),
|
|
|
+ False, 0, client->cb_data);
|
|
|
+ if (client->manager_window && client->watch)
|
|
|
+ client->watch (client->manager_window, False, 0, client->cb_data);
|
|
|
+
|
|
|
+ xsettings_list_free (client->settings);
|
|
|
+ free (client);
|
|
|
+}
|
|
|
+
|
|
|
+XSettingsResult
|
|
|
+xsettings_client_get_setting (XSettingsClient *client,
|
|
|
+ const char *name,
|
|
|
+ XSettingsSetting **setting)
|
|
|
+{
|
|
|
+ XSettingsSetting *search = xsettings_list_lookup (client->settings, name);
|
|
|
+ if (search)
|
|
|
+ {
|
|
|
+ *setting = xsettings_setting_copy (search);
|
|
|
+ return *setting ? XSETTINGS_SUCCESS : XSETTINGS_NO_MEM;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ return XSETTINGS_NO_ENTRY;
|
|
|
+}
|
|
|
+
|
|
|
+Bool
|
|
|
+xsettings_client_process_event (XSettingsClient *client,
|
|
|
+ const XEvent *xev)
|
|
|
+{
|
|
|
+ /* The checks here will not unlikely cause us to reread
|
|
|
+ * the properties from the manager window a number of
|
|
|
+ * times when the manager changes from A->B. But manager changes
|
|
|
+ * are going to be pretty rare.
|
|
|
+ */
|
|
|
+ if (xev->xany.window == RootWindow (client->display, client->screen))
|
|
|
+ {
|
|
|
+ if (xev->xany.type == ClientMessage &&
|
|
|
+ xev->xclient.message_type == client->manager_atom &&
|
|
|
+ xev->xclient.data.l[1] == client->selection_atom)
|
|
|
+ {
|
|
|
+ check_manager_window (client);
|
|
|
+ return True;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if (xev->xany.window == client->manager_window)
|
|
|
+ {
|
|
|
+ if (xev->xany.type == DestroyNotify)
|
|
|
+ {
|
|
|
+ check_manager_window (client);
|
|
|
+ return False;
|
|
|
+ }
|
|
|
+ else if (xev->xany.type == PropertyNotify)
|
|
|
+ {
|
|
|
+ read_settings (client);
|
|
|
+ return True;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return False;
|
|
|
+}
|
|
|
+
|
|
|
+XSettingsSetting *
|
|
|
+xsettings_setting_copy (XSettingsSetting *setting)
|
|
|
+{
|
|
|
+ XSettingsSetting *result;
|
|
|
+ size_t str_len;
|
|
|
+
|
|
|
+ result = malloc (sizeof *result);
|
|
|
+ if (!result)
|
|
|
+ return NULL;
|
|
|
+
|
|
|
+ str_len = strlen (setting->name);
|
|
|
+ result->name = malloc (str_len + 1);
|
|
|
+ if (!result->name)
|
|
|
+ goto err;
|
|
|
+
|
|
|
+ memcpy (result->name, setting->name, str_len + 1);
|
|
|
+
|
|
|
+ result->type = setting->type;
|
|
|
+
|
|
|
+ switch (setting->type)
|
|
|
+ {
|
|
|
+ case XSETTINGS_TYPE_INT:
|
|
|
+ result->data.v_int = setting->data.v_int;
|
|
|
+ break;
|
|
|
+ case XSETTINGS_TYPE_COLOR:
|
|
|
+ result->data.v_color = setting->data.v_color;
|
|
|
+ break;
|
|
|
+ case XSETTINGS_TYPE_STRING:
|
|
|
+ str_len = strlen (setting->data.v_string);
|
|
|
+ result->data.v_string = malloc (str_len + 1);
|
|
|
+ if (!result->data.v_string)
|
|
|
+ goto err;
|
|
|
+
|
|
|
+ memcpy (result->data.v_string, setting->data.v_string, str_len + 1);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ result->last_change_serial = setting->last_change_serial;
|
|
|
+
|
|
|
+ return result;
|
|
|
+
|
|
|
+ err:
|
|
|
+ if (result->name)
|
|
|
+ free (result->name);
|
|
|
+ free (result);
|
|
|
+
|
|
|
+ return NULL;
|
|
|
+}
|
|
|
+
|
|
|
+XSettingsList *
|
|
|
+xsettings_list_copy (XSettingsList *list)
|
|
|
+{
|
|
|
+ XSettingsList *new = NULL;
|
|
|
+ XSettingsList *old_iter = list;
|
|
|
+ XSettingsList *new_iter = NULL;
|
|
|
+
|
|
|
+ while (old_iter)
|
|
|
+ {
|
|
|
+ XSettingsList *new_node;
|
|
|
+
|
|
|
+ new_node = malloc (sizeof *new_node);
|
|
|
+ if (!new_node)
|
|
|
+ goto error;
|
|
|
+
|
|
|
+ new_node->setting = xsettings_setting_copy (old_iter->setting);
|
|
|
+ if (!new_node->setting)
|
|
|
+ {
|
|
|
+ free (new_node);
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (new_iter)
|
|
|
+ new_iter->next = new_node;
|
|
|
+ else
|
|
|
+ new = new_node;
|
|
|
+
|
|
|
+ new_iter = new_node;
|
|
|
+
|
|
|
+ old_iter = old_iter->next;
|
|
|
+ }
|
|
|
+
|
|
|
+ return new;
|
|
|
+
|
|
|
+ error:
|
|
|
+ xsettings_list_free (new);
|
|
|
+ return NULL;
|
|
|
+}
|
|
|
+
|
|
|
+int
|
|
|
+xsettings_setting_equal (XSettingsSetting *setting_a,
|
|
|
+ XSettingsSetting *setting_b)
|
|
|
+{
|
|
|
+ if (setting_a->type != setting_b->type)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ if (strcmp (setting_a->name, setting_b->name) != 0)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ switch (setting_a->type)
|
|
|
+ {
|
|
|
+ case XSETTINGS_TYPE_INT:
|
|
|
+ return setting_a->data.v_int == setting_b->data.v_int;
|
|
|
+ case XSETTINGS_TYPE_COLOR:
|
|
|
+ return (setting_a->data.v_color.red == setting_b->data.v_color.red &&
|
|
|
+ setting_a->data.v_color.green == setting_b->data.v_color.green &&
|
|
|
+ setting_a->data.v_color.blue == setting_b->data.v_color.blue &&
|
|
|
+ setting_a->data.v_color.alpha == setting_b->data.v_color.alpha);
|
|
|
+ case XSETTINGS_TYPE_STRING:
|
|
|
+ return strcmp (setting_a->data.v_string, setting_b->data.v_string) == 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+void
|
|
|
+xsettings_setting_free (XSettingsSetting *setting)
|
|
|
+{
|
|
|
+ if (setting->type == XSETTINGS_TYPE_STRING)
|
|
|
+ free (setting->data.v_string);
|
|
|
+
|
|
|
+ if (setting->name)
|
|
|
+ free (setting->name);
|
|
|
+
|
|
|
+ free (setting);
|
|
|
+}
|
|
|
+
|
|
|
+void
|
|
|
+xsettings_list_free (XSettingsList *list)
|
|
|
+{
|
|
|
+ while (list)
|
|
|
+ {
|
|
|
+ XSettingsList *next = list->next;
|
|
|
+
|
|
|
+ xsettings_setting_free (list->setting);
|
|
|
+ free (list);
|
|
|
+
|
|
|
+ list = next;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+XSettingsResult
|
|
|
+xsettings_list_insert (XSettingsList **list,
|
|
|
+ XSettingsSetting *setting)
|
|
|
+{
|
|
|
+ XSettingsList *node;
|
|
|
+ XSettingsList *iter;
|
|
|
+ XSettingsList *last = NULL;
|
|
|
+
|
|
|
+ node = malloc (sizeof *node);
|
|
|
+ if (!node)
|
|
|
+ return XSETTINGS_NO_MEM;
|
|
|
+ node->setting = setting;
|
|
|
+
|
|
|
+ iter = *list;
|
|
|
+ while (iter)
|
|
|
+ {
|
|
|
+ int cmp = strcmp (setting->name, iter->setting->name);
|
|
|
+
|
|
|
+ if (cmp < 0)
|
|
|
+ break;
|
|
|
+ else if (cmp == 0)
|
|
|
+ {
|
|
|
+ free (node);
|
|
|
+ return XSETTINGS_DUPLICATE_ENTRY;
|
|
|
+ }
|
|
|
+
|
|
|
+ last = iter;
|
|
|
+ iter = iter->next;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (last)
|
|
|
+ last->next = node;
|
|
|
+ else
|
|
|
+ *list = node;
|
|
|
+
|
|
|
+ node->next = iter;
|
|
|
+
|
|
|
+ return XSETTINGS_SUCCESS;
|
|
|
+}
|
|
|
+
|
|
|
+XSettingsResult
|
|
|
+xsettings_list_delete (XSettingsList **list,
|
|
|
+ const char *name)
|
|
|
+{
|
|
|
+ XSettingsList *iter;
|
|
|
+ XSettingsList *last = NULL;
|
|
|
+
|
|
|
+ iter = *list;
|
|
|
+ while (iter)
|
|
|
+ {
|
|
|
+ if (strcmp (name, iter->setting->name) == 0)
|
|
|
+ {
|
|
|
+ if (last)
|
|
|
+ last->next = iter->next;
|
|
|
+ else
|
|
|
+ *list = iter->next;
|
|
|
+
|
|
|
+ xsettings_setting_free (iter->setting);
|
|
|
+ free (iter);
|
|
|
+
|
|
|
+ return XSETTINGS_SUCCESS;
|
|
|
+ }
|
|
|
+
|
|
|
+ last = iter;
|
|
|
+ iter = iter->next;
|
|
|
+ }
|
|
|
+
|
|
|
+ return XSETTINGS_FAILED;
|
|
|
+}
|
|
|
+
|
|
|
+XSettingsSetting *
|
|
|
+xsettings_list_lookup (XSettingsList *list,
|
|
|
+ const char *name)
|
|
|
+{
|
|
|
+ XSettingsList *iter;
|
|
|
+
|
|
|
+ iter = list;
|
|
|
+ while (iter)
|
|
|
+ {
|
|
|
+ if (strcmp (name, iter->setting->name) == 0)
|
|
|
+ return iter->setting;
|
|
|
+
|
|
|
+ iter = iter->next;
|
|
|
+ }
|
|
|
+
|
|
|
+ return NULL;
|
|
|
+}
|
|
|
+
|
|
|
+char
|
|
|
+xsettings_byte_order (void)
|
|
|
+{
|
|
|
+ CARD32 myint = 0x01020304;
|
|
|
+ return (*(char *)&myint == 1) ? MSBFirst : LSBFirst;
|
|
|
+}
|
|
|
+
|
|
|
+#endif /* SDL_VIDEO_DRIVER_X11 */
|
Emmanuele Bassi