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64223704e0e88a86721a3429f44d5d8f0525428c
squeekboard/eek/eek-xml-layout.c
Hysterical Raisins 094aa872ce Cleanups: fix deprecated g_type_class_add_private() 
- use G_DECLARE_ and G_DEFINE_ macros
- move all data into ClassNamePrivate
- use _get_instance_private()

This should not introduce any functional changes or breakage.

Skipped two classes (EekKeyboard and EekboardContextService) for now in
order not to break the build.

These two classes are used in some very funky WIP code that tries to
circumvent encapsulation.

(Funky code is in eekboard/key-emitter.c and eekboard/eekboard-context-service.c)
2019-07-08 08:44:05 +02:00

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/*
* Copyright (C) 2011 Daiki Ueno <ueno@unixuser.org>
* Copyright (C) 2011 Red Hat, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* SECTION:eek-xml-layout
* @short_description: Layout engine which loads layout information from XML
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#include <stdlib.h>
#include <string.h>
#include "eek-xml-layout.h"
#include "eek-keyboard.h"
#include "eek-section.h"
#include "eek-key.h"
#include "eek-keysym.h"
#include "eek-text.h"
enum {
PROP_0,
PROP_ID,
PROP_LAST
};
static void initable_iface_init (GInitableIface *initable_iface);
typedef struct _EekXmlLayoutPrivate
{
gchar *id;
gchar *keyboards_dir;
EekXmlKeyboardDesc *desc;
} EekXmlLayoutPrivate;
G_DEFINE_TYPE_EXTENDED (EekXmlLayout, eek_xml_layout, EEK_TYPE_LAYOUT,
0, /* GTypeFlags */
G_ADD_PRIVATE(EekXmlLayout)
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE,
initable_iface_init))
G_DEFINE_BOXED_TYPE(EekXmlKeyboardDesc, eek_xml_keyboard_desc, eek_xml_keyboard_desc_copy, eek_xml_keyboard_desc_free);
#define BUFSIZE 8192
static GList *parse_keyboards (const gchar *path,
GError **error);
static GList *parse_prerequisites
(const gchar *path,
GError **error);
static gboolean parse_geometry (const gchar *path,
EekKeyboard *keyboard,
GError **error);
static gboolean parse_symbols_with_prerequisites
(const gchar *keyboards_dir,
const gchar *name,
EekKeyboard *keyboard,
GList **loaded,
GError **error);
static gboolean parse_symbols (const gchar *path,
EekKeyboard *keyboard,
GError **error);
static void scale_keyboard (EekKeyboard *keyboard,
gdouble width,
gdouble height);
static gboolean validate (const gchar **valid_path_list,
gsize valid_path_list_len,
const gchar *element_name,
GSList *element_stack,
GError **error);
static gboolean parse (GMarkupParseContext *pcontext,
GInputStream *input,
GError **error);
static const gchar * get_attribute (const gchar **names,
const gchar **values,
const gchar *name);
static void
keyboard_desc_free (EekXmlKeyboardDesc *desc)
{
g_free (desc->id);
g_free (desc->name);
g_free (desc->geometry);
g_free (desc->symbols);
g_free (desc->longname);
g_free (desc->language);
g_slice_free (EekXmlKeyboardDesc, desc);
}
struct _KeyboardsParseData {
GSList *element_stack;
GList *keyboards;
};
typedef struct _KeyboardsParseData KeyboardsParseData;
static KeyboardsParseData *
keyboards_parse_data_new (void)
{
return g_slice_new0 (KeyboardsParseData);
}
static void
keyboards_parse_data_free (KeyboardsParseData *data)
{
g_list_free_full (data->keyboards, (GDestroyNotify) keyboard_desc_free);
g_slice_free (KeyboardsParseData, data);
}
static const gchar *keyboards_valid_path_list[] = {
"keyboards",
"keyboard/keyboards",
};
static void
keyboards_start_element_callback (GMarkupParseContext *pcontext,
const gchar *element_name,
const gchar **attribute_names,
const gchar **attribute_values,
gpointer user_data,
GError **error)
{
KeyboardsParseData *data = user_data;
if (!validate (keyboards_valid_path_list,
G_N_ELEMENTS (keyboards_valid_path_list),
element_name,
data->element_stack,
error))
return;
if (g_strcmp0 (element_name, "keyboard") == 0) {
EekXmlKeyboardDesc *desc = g_slice_new0 (EekXmlKeyboardDesc);
const gchar *attribute;
data->keyboards = g_list_prepend (data->keyboards, desc);
attribute = get_attribute (attribute_names, attribute_values,
"id");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"id\" attribute for \"keyboard\"");
return;
}
desc->id = g_strdup (attribute);
attribute = get_attribute (attribute_names, attribute_values,
"name");
if (attribute)
desc->name = g_strdup (attribute);
attribute = get_attribute (attribute_names, attribute_values,
"geometry");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"geometry\" attribute for \"keyboard\"");
return;
}
desc->geometry = g_strdup (attribute);
attribute = get_attribute (attribute_names, attribute_values,
"symbols");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"symbols\" attribute for \"keyboard\"");
goto out;
}
desc->symbols = g_strdup (attribute);
attribute = get_attribute (attribute_names, attribute_values,
"longname");
if (attribute)
desc->longname = g_strdup (attribute);
attribute = get_attribute (attribute_names, attribute_values,
"language");
if (attribute)
desc->language = g_strdup (attribute);
}
out:
data->element_stack = g_slist_prepend (data->element_stack,
g_strdup (element_name));
}
static void
keyboards_end_element_callback (GMarkupParseContext *pcontext,
const gchar *element_name,
gpointer user_data,
GError **error)
{
KeyboardsParseData *data = user_data;
GSList *head = data->element_stack;
g_free (head->data);
data->element_stack = g_slist_next (data->element_stack);
g_slist_free1 (head);
}
static const GMarkupParser keyboards_parser = {
keyboards_start_element_callback,
keyboards_end_element_callback,
0,
0,
0
};
struct _GeometryParseData {
GSList *element_stack;
EekBounds bounds;
EekKeyboard *keyboard;
EekSection *section;
EekKey *key;
gint num_columns;
gint num_rows;
EekOrientation orientation;
gdouble corner_radius;
GSList *points;
gchar *name;
EekOutline outline;
gchar *oref;
GHashTable *key_oref_hash;
GHashTable *oref_outline_hash;
};
typedef struct _GeometryParseData GeometryParseData;
static GeometryParseData *
geometry_parse_data_new (EekKeyboard *keyboard)
{
GeometryParseData *data = g_slice_new0 (GeometryParseData);
data->keyboard = g_object_ref (keyboard);
data->key_oref_hash =
g_hash_table_new_full (g_direct_hash,
g_direct_equal,
NULL,
g_free);
data->oref_outline_hash =
g_hash_table_new_full (g_str_hash,
g_str_equal,
g_free,
(GDestroyNotify)eek_outline_free);
return data;
}
static void
geometry_parse_data_free (GeometryParseData *data)
{
g_object_unref (data->keyboard);
g_hash_table_destroy (data->key_oref_hash);
g_hash_table_destroy (data->oref_outline_hash);
g_slice_free (GeometryParseData, data);
}
static const gchar *geometry_valid_path_list[] = {
"geometry",
"bounds/geometry",
"section/geometry",
"outline/geometry",
"bounds/section/geometry",
"row/section/geometry",
"key/row/section/geometry",
"bounds/key/row/section/geometry",
"point/outline/geometry",
};
static void
geometry_start_element_callback (GMarkupParseContext *pcontext,
const gchar *element_name,
const gchar **attribute_names,
const gchar **attribute_values,
gpointer user_data,
GError **error)
{
GeometryParseData *data = user_data;
const gchar *attribute;
if (!validate (geometry_valid_path_list,
G_N_ELEMENTS (geometry_valid_path_list),
element_name,
data->element_stack,
error)) {
return;
}
if (g_strcmp0 (element_name, "bounds") == 0) {
EekBounds bounds;
attribute = get_attribute (attribute_names, attribute_values, "x");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"x\" attribute for \"bounds\"");
return;
}
bounds.x = g_strtod (attribute, NULL);
attribute = get_attribute (attribute_names, attribute_values,
"y");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"y\" attribute for \"bounds\"");
return;
}
bounds.y = g_strtod (attribute, NULL);
attribute = get_attribute (attribute_names, attribute_values,
"width");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"width\" attribute for \"bounds\"");
return;
}
bounds.width = g_strtod (attribute, NULL);
attribute = get_attribute (attribute_names, attribute_values,
"height");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"height\" attribute for \"bounds\"");
return;
}
bounds.height = g_strtod (attribute, NULL);
if (g_strcmp0 (data->element_stack->data, "geometry") == 0)
eek_element_set_bounds (EEK_ELEMENT(data->keyboard), &bounds);
else if (g_strcmp0 (data->element_stack->data, "section") == 0)
eek_element_set_bounds (EEK_ELEMENT(data->section), &bounds);
goto out;
}
if (g_strcmp0 (element_name, "section") == 0) {
data->section = eek_keyboard_create_section (data->keyboard);
attribute = get_attribute (attribute_names, attribute_values,
"id");
if (attribute != NULL)
eek_element_set_name (EEK_ELEMENT(data->section), attribute);
attribute = get_attribute (attribute_names, attribute_values,
"angle");
if (attribute != NULL) {
gint angle;
angle = strtol (attribute, NULL, 10);
eek_section_set_angle (data->section, angle);
}
goto out;
}
if (g_strcmp0 (element_name, "row") == 0) {
attribute = get_attribute (attribute_names, attribute_values,
"orientation");
if (attribute != NULL)
data->orientation = strtol (attribute, NULL, 10);
eek_section_add_row (data->section,
data->num_columns,
data->orientation);
data->num_rows++;
goto out;
}
if (g_strcmp0 (element_name, "key") == 0) {
guint keycode;
attribute = get_attribute (attribute_names, attribute_values,
"keycode");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"keycode\" attribute for \"key\"");
return;
}
keycode = strtoul (attribute, NULL, 10);
data->key = eek_section_create_key (data->section,
keycode,
data->num_columns,
data->num_rows - 1);
attribute = get_attribute (attribute_names, attribute_values,
"name");
if (attribute != NULL)
eek_element_set_name (EEK_ELEMENT(data->key), attribute);
attribute = get_attribute (attribute_names, attribute_values,
"oref");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"oref\" attribute for \"key\"");
return;
}
g_hash_table_insert (data->key_oref_hash,
data->key,
g_strdup (attribute));
data->num_columns++;
goto out;
}
if (g_strcmp0 (element_name, "outline") == 0) {
attribute = get_attribute (attribute_names, attribute_values, "id");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"id\" attribute for \"outline\"");
return;
}
data->oref = g_strdup (attribute);
attribute = get_attribute (attribute_names, attribute_values,
"corner-radius");
if (attribute != NULL)
data->corner_radius = g_strtod (attribute, NULL);
goto out;
}
if (g_strcmp0 (element_name, "point") == 0) {
EekPoint *point;
gdouble x, y;
attribute = get_attribute (attribute_names, attribute_values, "x");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"x\" attribute for \"bounds\"");
return;
}
x = g_strtod (attribute, NULL);
attribute = get_attribute (attribute_names, attribute_values, "y");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"y\" attribute for \"bounds\"");
return;
}
y = g_strtod (attribute, NULL);
point = g_slice_new (EekPoint);
point->x = x;
point->y = y;
data->points = g_slist_prepend (data->points, point);
goto out;
}
out:
data->element_stack = g_slist_prepend (data->element_stack,
g_strdup (element_name));
}
static void
geometry_end_element_callback (GMarkupParseContext *pcontext,
const gchar *element_name,
gpointer user_data,
GError **error)
{
GeometryParseData *data = user_data;
GSList *head = data->element_stack;
g_free (head->data);
data->element_stack = g_slist_next (data->element_stack);
g_slist_free1 (head);
if (g_strcmp0 (element_name, "section") == 0) {
data->section = NULL;
data->num_rows = 0;
return;
}
if (g_strcmp0 (element_name, "key") == 0) {
data->key = NULL;
return;
}
if (g_strcmp0 (element_name, "row") == 0) {
data->num_columns = 0;
data->orientation = EEK_ORIENTATION_HORIZONTAL;
return;
}
if (g_strcmp0 (element_name, "outline") == 0) {
EekOutline *outline = g_slice_new (EekOutline);
outline->corner_radius = data->corner_radius;
data->corner_radius = 0.0;
outline->num_points = g_slist_length (data->points);
outline->points = g_slice_alloc0 (sizeof (EekPoint) *
outline->num_points);
guint i;
for (i = 0, head = data->points = g_slist_reverse (data->points);
head && i < outline->num_points;
head = g_slist_next (head), i++) {
memcpy (&outline->points[i], head->data, sizeof (EekPoint));
g_slice_free1 (sizeof (EekPoint), head->data);
}
g_slist_free (data->points);
data->points = NULL;
g_hash_table_insert (data->oref_outline_hash,
g_strdup (data->oref),
outline);
g_free (data->oref);
return;
}
}
static const GMarkupParser geometry_parser = {
geometry_start_element_callback,
geometry_end_element_callback,
0,
0,
0
};
struct _SymbolsParseData {
GSList *element_stack;
GString *text;
EekKeyboard *keyboard;
EekKey *key;
GSList *symbols;
gchar *label;
gchar *icon;
gchar *tooltip;
EekSymbolCategory category;
guint keyval;
gint groups;
};
typedef struct _SymbolsParseData SymbolsParseData;
static SymbolsParseData *
symbols_parse_data_new (EekKeyboard *keyboard)
{
SymbolsParseData *data = g_slice_new0 (SymbolsParseData);
data->keyboard = g_object_ref (keyboard);
data->text = g_string_sized_new (BUFSIZE);
return data;
}
static void
symbols_parse_data_free (SymbolsParseData *data)
{
g_object_unref (data->keyboard);
g_string_free (data->text, TRUE);
g_slice_free (SymbolsParseData, data);
}
static const gchar *symbols_valid_path_list[] = {
"symbols",
"include/symbols",
"key/symbols",
"text/key/symbols",
"keysym/key/symbols",
"symbol/key/symbols",
"invalid/key/symbols",
};
static void
symbols_start_element_callback (GMarkupParseContext *pcontext,
const gchar *element_name,
const gchar **attribute_names,
const gchar **attribute_values,
gpointer user_data,
GError **error)
{
SymbolsParseData *data = user_data;
const gchar *attribute;
if (!validate (symbols_valid_path_list,
G_N_ELEMENTS (symbols_valid_path_list),
element_name,
data->element_stack,
error))
return;
if (g_strcmp0 (element_name, "key") == 0) {
guint keycode;
attribute = get_attribute (attribute_names, attribute_values,
"keycode");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"keycode\" attribute for \"key\"");
return;
}
keycode = strtoul (attribute, NULL, 10);
data->key = eek_keyboard_find_key_by_keycode (data->keyboard,
keycode);
/*if (data->key == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"no such keycode %u", keycode);
return;
}*/
attribute = get_attribute (attribute_names, attribute_values,
"groups");
if (attribute != NULL)
data->groups = strtol (attribute, NULL, 10);
else
data->groups = 1;
data->symbols = NULL;
goto out;
}
if (g_strcmp0 (element_name, "keysym") == 0) {
attribute = get_attribute (attribute_names, attribute_values,
"keyval");
if (attribute == NULL) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_MISSING_ATTRIBUTE,
"no \"keyval\" attribute for \"keysym\"");
return;
}
data->keyval = strtoul (attribute, NULL, 0);
}
if (g_strcmp0 (element_name, "symbol") == 0 ||
g_strcmp0 (element_name, "keysym") == 0 ||
g_strcmp0 (element_name, "text") == 0) {
attribute = get_attribute (attribute_names, attribute_values,
"label");
if (attribute != NULL)
data->label = g_strdup (attribute);
attribute = get_attribute (attribute_names, attribute_values,
"icon");
if (attribute != NULL)
data->icon = g_strdup (attribute);
attribute = get_attribute (attribute_names, attribute_values,
"tooltip");
if (attribute != NULL)
data->tooltip = g_strdup (attribute);
attribute = get_attribute (attribute_names, attribute_values,
"category");
if (attribute != NULL)
data->category = strtoul (attribute, NULL, 10);
else
data->category = EEK_SYMBOL_CATEGORY_KEYNAME;
}
out:
data->element_stack = g_slist_prepend (data->element_stack,
g_strdup (element_name));
data->text->len = 0;
}
static void
symbols_end_element_callback (GMarkupParseContext *pcontext,
const gchar *element_name,
gpointer user_data,
GError **error)
{
SymbolsParseData *data = user_data;
GSList *head = data->element_stack;
gchar *text;
gint i;
g_free (head->data);
data->element_stack = g_slist_next (data->element_stack);
g_slist_free1 (head);
text = g_strndup (data->text->str, data->text->len);
if (g_strcmp0 (element_name, "key") == 0) {
if (!data->key) {
return;
}
gint num_symbols = g_slist_length (data->symbols);
gint levels = num_symbols / data->groups;
EekSymbolMatrix *matrix = eek_symbol_matrix_new (data->groups,
levels);
head = data->symbols = g_slist_reverse (data->symbols);
for (i = 0; i < num_symbols; i++) {
if (head && head->data) {
matrix->data[i] = head->data;
head = g_slist_next (head);
} else
matrix->data[i] = NULL;
}
g_slist_free (data->symbols);
data->symbols = NULL;
eek_key_set_symbol_matrix (data->key, matrix);
eek_symbol_matrix_free (matrix);
data->key = NULL;
goto out;
}
if (g_strcmp0 (element_name, "symbol") == 0 ||
g_strcmp0 (element_name, "keysym") == 0 ||
g_strcmp0 (element_name, "text") == 0) {
EekSymbol *symbol;
if (g_strcmp0 (element_name, "keysym") == 0) {
EekKeysym *keysym;
if (data->keyval != EEK_INVALID_KEYSYM)
keysym = eek_keysym_new (data->keyval);
else
keysym = eek_keysym_new_from_name (text);
symbol = EEK_SYMBOL(keysym);
} else if (g_strcmp0 (element_name, "text") == 0) {
symbol = EEK_SYMBOL(eek_text_new (text));
} else {
symbol = eek_symbol_new (text);
eek_symbol_set_category (symbol, EEK_SYMBOL_CATEGORY_KEYNAME);
}
if (data->label) {
eek_symbol_set_label (symbol, data->label);
g_free (data->label);
data->label = NULL;
}
if (data->icon) {
eek_symbol_set_icon_name (symbol, data->icon);
g_free (data->icon);
data->icon = NULL;
}
if (data->tooltip) {
eek_symbol_set_tooltip (symbol, data->tooltip);
g_free (data->tooltip);
data->tooltip = NULL;
}
data->symbols = g_slist_prepend (data->symbols, symbol);
goto out;
}
if (g_strcmp0 (element_name, "invalid") == 0) {
data->symbols = g_slist_prepend (data->symbols, NULL);
goto out;
}
out:
g_free (text);
}
static void
symbols_text_callback (GMarkupParseContext *pcontext,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error)
{
SymbolsParseData *data = user_data;
g_string_append_len (data->text, text, text_len);
}
static const GMarkupParser symbols_parser = {
symbols_start_element_callback,
symbols_end_element_callback,
symbols_text_callback,
0,
0
};
struct _PrerequisitesParseData {
GSList *element_stack;
GString *text;
GList *prerequisites;
};
typedef struct _PrerequisitesParseData PrerequisitesParseData;
static PrerequisitesParseData *
prerequisites_parse_data_new (void)
{
PrerequisitesParseData *data = g_slice_new0 (PrerequisitesParseData);
data->text = g_string_sized_new (BUFSIZE);
return data;
}
static void
prerequisites_parse_data_free (PrerequisitesParseData *data)
{
g_list_free_full (data->prerequisites, g_free);
g_string_free (data->text, TRUE);
g_slice_free (PrerequisitesParseData, data);
}
static void
prerequisites_start_element_callback (GMarkupParseContext *pcontext,
const gchar *element_name,
const gchar **attribute_names,
const gchar **attribute_values,
gpointer user_data,
GError **error)
{
PrerequisitesParseData *data = user_data;
if (!validate (symbols_valid_path_list,
G_N_ELEMENTS (symbols_valid_path_list),
element_name,
data->element_stack,
error))
return;
data->element_stack = g_slist_prepend (data->element_stack,
g_strdup (element_name));
data->text->len = 0;
}
static void
prerequisites_end_element_callback (GMarkupParseContext *pcontext,
const gchar *element_name,
gpointer user_data,
GError **error)
{
PrerequisitesParseData *data = user_data;
GSList *head = data->element_stack;
g_free (head->data);
data->element_stack = g_slist_next (data->element_stack);
g_slist_free1 (head);
if (g_strcmp0 (element_name, "include") == 0) {
data->prerequisites = g_list_append (data->prerequisites,
g_strndup (data->text->str,
data->text->len));
}
}
static void
prerequisites_text_callback (GMarkupParseContext *pcontext,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error)
{
PrerequisitesParseData *data = user_data;
g_string_append_len (data->text, text, text_len);
}
static const GMarkupParser prerequisites_parser = {
prerequisites_start_element_callback,
prerequisites_end_element_callback,
prerequisites_text_callback,
0,
0
};
static EekKeyboard *
eek_xml_layout_real_create_keyboard (EekboardContextService *manager,
EekLayout *self,
gdouble initial_width,
gdouble initial_height)
{
EekXmlLayout *layout = EEK_XML_LAYOUT (self);
EekXmlLayoutPrivate *priv = eek_xml_layout_get_instance_private (layout);
gboolean retval;
/* Create an empty keyboard to which geometry and symbols
information are applied. */
EekKeyboard *keyboard = g_object_new (EEK_TYPE_KEYBOARD, "layout", layout, NULL);
keyboard->manager = manager;
/* Read geometry information. */
gchar *filename = g_strdup_printf ("%s.xml", priv->desc->geometry);
gchar *path = g_build_filename (priv->keyboards_dir, "geometry", filename, NULL);
g_free (filename);
GError *error = NULL;
retval = parse_geometry (path, keyboard, &error);
g_free (path);
if (!retval) {
g_object_unref (keyboard);
g_warning ("can't parse geometry file %s: %s",
priv->desc->geometry,
error->message);
g_error_free (error);
return NULL;
}
/* Read symbols information. */
GList *loaded = NULL;
retval = parse_symbols_with_prerequisites (priv->keyboards_dir,
priv->desc->symbols,
keyboard,
&loaded,
&error);
g_list_free_full (loaded, g_free);
if (!retval) {
g_object_unref (keyboard);
g_warning ("can't parse symbols file %s: %s",
priv->desc->symbols,
error->message);
g_error_free (error);
return NULL;
}
/* Fit keyboard in the given width and hight. */
scale_keyboard (keyboard, initial_width, initial_height);
/* Use pre-defined modifier mask here. */
eek_keyboard_set_num_lock_mask (keyboard, EEK_MOD2_MASK);
eek_keyboard_set_alt_gr_mask (keyboard, EEK_BUTTON1_MASK);
return keyboard;
}
static void
eek_xml_layout_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
EekXmlLayout *layout = EEK_XML_LAYOUT (object);
EekXmlLayoutPrivate *priv = eek_xml_layout_get_instance_private (layout);
switch (prop_id) {
case PROP_ID:
g_free (priv->id);
priv->id = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
eek_xml_layout_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
EekXmlLayout *layout = EEK_XML_LAYOUT (object);
EekXmlLayoutPrivate *priv = eek_xml_layout_get_instance_private (layout);
switch (prop_id) {
case PROP_ID:
g_value_set_string (value, priv->id);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
eek_xml_layout_finalize (GObject *object)
{
EekXmlLayoutPrivate *priv = eek_xml_layout_get_instance_private (
EEK_XML_LAYOUT (object));
g_free (priv->id);
if (priv->desc)
keyboard_desc_free (priv->desc);
g_free (priv->keyboards_dir);
G_OBJECT_CLASS (eek_xml_layout_parent_class)->finalize (object);
}
static void
eek_xml_layout_class_init (EekXmlLayoutClass *klass)
{
EekLayoutClass *layout_class = EEK_LAYOUT_CLASS (klass);
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GParamSpec *pspec;
layout_class->create_keyboard = eek_xml_layout_real_create_keyboard;
gobject_class->set_property = eek_xml_layout_set_property;
gobject_class->get_property = eek_xml_layout_get_property;
gobject_class->finalize = eek_xml_layout_finalize;
pspec = g_param_spec_string ("id",
"ID",
"ID",
NULL,
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_READWRITE);
g_object_class_install_property (gobject_class, PROP_ID, pspec);
}
static void
eek_xml_layout_init (EekXmlLayout *self)
{
/* void */
}
EekLayout *
eek_xml_layout_new (const gchar *id, GError **error)
{
return (EekLayout *) g_initable_new (EEK_TYPE_XML_LAYOUT,
NULL,
error,
"id", id,
NULL);
}
static gboolean
initable_init (GInitable *initable,
GCancellable *cancellable,
GError **error)
{
EekXmlLayout *layout = EEK_XML_LAYOUT (initable);
EekXmlLayoutPrivate *priv = eek_xml_layout_get_instance_private (layout);
GList *keyboards, *p;
gchar *path;
EekXmlKeyboardDesc *desc;
priv->keyboards_dir = (gchar *) g_getenv ("EEKBOARD_KEYBOARDSDIR");
if (priv->keyboards_dir == NULL)
priv->keyboards_dir = KEYBOARDSDIR;
priv->keyboards_dir = g_strdup (priv->keyboards_dir);
path = g_build_filename (priv->keyboards_dir, "keyboards.xml", NULL);
keyboards = parse_keyboards (path, error);
g_free (path);
if (error && *error)
return FALSE;
for (p = keyboards; p; p = p->next) {
desc = p->data;
if (g_strcmp0 (desc->id, priv->id) == 0)
break;
}
if (p == NULL) {
g_set_error (error,
EEK_ERROR,
EEK_ERROR_LAYOUT_ERROR,
"no such keyboard %s",
priv->id);
return FALSE;
}
keyboards = g_list_remove_link (keyboards, p);
priv->desc = p->data;
g_list_free_1 (p);
g_list_free_full (keyboards, (GDestroyNotify) keyboard_desc_free);
return TRUE;
}
static void
initable_iface_init (GInitableIface *initable_iface)
{
initable_iface->init = initable_init;
}
/**
* eek_xml_list_keyboards:
*
* List available keyboards.
* Returns: (transfer container) (element-type utf8): the list of keyboards
*/
GList *
eek_xml_list_keyboards (void)
{
const gchar *keyboards_dir;
gchar *path;
GList *keyboards;
keyboards_dir = g_getenv ("EEKBOARD_KEYBOARDSDIR");
if (keyboards_dir == NULL)
keyboards_dir = KEYBOARDSDIR;
path = g_build_filename (keyboards_dir, "keyboards.xml", NULL);
keyboards = parse_keyboards (path, NULL);
g_free (path);
return keyboards;
}
EekXmlKeyboardDesc *
eek_xml_keyboard_desc_copy (EekXmlKeyboardDesc *desc)
{
return g_slice_dup (EekXmlKeyboardDesc, desc);
}
void
eek_xml_keyboard_desc_free (EekXmlKeyboardDesc *desc)
{
g_free (desc->id);
g_free (desc->name);
g_free (desc->geometry);
g_free (desc->symbols);
g_free (desc->language);
g_free (desc->longname);
g_slice_free (EekXmlKeyboardDesc, desc);
}
struct place_data {
double desired_width;
double current_offset;
EekKeyboard *keyboard;
};
const double section_spacing = 7.0;
static void section_placer(EekElement *element, gpointer user_data) {
struct place_data *data = (struct place_data*)user_data;
EekBounds section_bounds = {0};
eek_element_get_bounds(element, &section_bounds);
section_bounds.width = data->desired_width;
eek_element_set_bounds(element, &section_bounds);
// Sections are rows now. Gather up all the keys and adjust their bounds.
eek_section_place_keys(EEK_SECTION(element), EEK_KEYBOARD(data->keyboard));
eek_element_get_bounds(element, &section_bounds);
section_bounds.y = data->current_offset;
eek_element_set_bounds(element, &section_bounds);
data->current_offset += section_bounds.height + section_spacing;
}
static void section_counter(EekElement *element, gpointer user_data) {
double *total_height = user_data;
EekBounds section_bounds = {0};
eek_element_get_bounds(element, &section_bounds);
*total_height += section_bounds.height + section_spacing;
}
static gboolean
parse_geometry (const gchar *path, EekKeyboard *keyboard, GError **error)
{
GeometryParseData *data;
GMarkupParseContext *pcontext;
GHashTable *oref_hash;
GHashTableIter iter;
gpointer k, v;
GFile *file;
GFileInputStream *input;
gboolean retval;
file = g_file_new_for_path (path);
input = g_file_read (file, NULL, error);
g_object_unref (file);
if (input == NULL)
return FALSE;
data = geometry_parse_data_new (keyboard);
pcontext = g_markup_parse_context_new (&geometry_parser,
0,
data,
NULL);
retval = parse (pcontext, G_INPUT_STREAM (input), error);
g_markup_parse_context_free (pcontext);
g_object_unref (input);
if (!retval) {
geometry_parse_data_free (data);
return FALSE;
}
/* Resolve outline references. */
oref_hash = g_hash_table_new (g_str_hash, g_str_equal);
g_hash_table_iter_init (&iter, data->oref_outline_hash);
while (g_hash_table_iter_next (&iter, &k, &v)) {
EekOutline *outline = v;
gulong oref;
oref = eek_keyboard_add_outline (data->keyboard, outline);
g_hash_table_insert (oref_hash, k, GUINT_TO_POINTER(oref));
}
g_hash_table_iter_init (&iter, data->key_oref_hash);
while (g_hash_table_iter_next (&iter, &k, &v)) {
gpointer oref;
if (g_hash_table_lookup_extended (oref_hash, v, NULL, &oref))
eek_key_set_oref (EEK_KEY(k), GPOINTER_TO_UINT(oref));
}
g_hash_table_destroy (oref_hash);
/* Order rows */
// This needs to be done after outlines, because outlines define key sizes
// TODO: do this only for rows without bounds
// The keyboard width is given by the user via screen size. The height will be given dynamically.
// TODO: calculate max line width beforehand for button centering. Leave keyboard centering to the renderer later
EekBounds keyboard_bounds = {0};
eek_element_get_bounds(EEK_ELEMENT(keyboard), &keyboard_bounds);
struct place_data placer_data = {
.desired_width = keyboard_bounds.width,
.current_offset = 0,
.keyboard = keyboard,
};
eek_container_foreach_child(EEK_CONTAINER(keyboard), section_placer, &placer_data);
double total_height = 0;
eek_container_foreach_child(EEK_CONTAINER(keyboard), section_counter, &total_height);
keyboard_bounds.height = total_height;
eek_element_set_bounds(EEK_ELEMENT(keyboard), &keyboard_bounds);
geometry_parse_data_free (data);
return TRUE;
}
static gboolean
parse_symbols_with_prerequisites (const gchar *keyboards_dir,
const gchar *name,
EekKeyboard *keyboard,
GList **loaded,
GError **error)
{
gchar *filename, *path;
GList *prerequisites, *p;
GError *prerequisites_error;
gboolean retval;
for (p = *loaded; p; p = p->next) {
if (g_strcmp0 (p->data, name) == 0) {
g_set_error (error,
EEK_ERROR,
EEK_ERROR_LAYOUT_ERROR,
"%s already loaded",
name);
return FALSE;
}
}
*loaded = g_list_prepend (*loaded, g_strdup (name));
filename = g_strdup_printf ("%s.xml", name);
path = g_build_filename (keyboards_dir, "symbols", filename, NULL);
g_free (filename);
prerequisites_error = NULL;
prerequisites = parse_prerequisites (path, &prerequisites_error);
if (prerequisites_error != NULL) {
g_propagate_error (error, prerequisites_error);
return FALSE;
}
for (p = prerequisites; p; p = p->next) {
retval = parse_symbols_with_prerequisites (keyboards_dir,
p->data,
keyboard,
loaded,
error);
if (!retval)
return FALSE;
}
g_list_free_full (prerequisites, (GDestroyNotify)g_free);
retval = parse_symbols (path, keyboard, error);
g_free (path);
return retval;
}
static gboolean
parse_symbols (const gchar *path, EekKeyboard *keyboard, GError **error)
{
SymbolsParseData *data;
GMarkupParseContext *pcontext;
GFile *file;
GFileInputStream *input;
gboolean retval;
file = g_file_new_for_path (path);
input = g_file_read (file, NULL, error);
g_object_unref (file);
if (input == NULL)
return FALSE;
data = symbols_parse_data_new (keyboard);
pcontext = g_markup_parse_context_new (&symbols_parser,
0,
data,
NULL);
retval = parse (pcontext, G_INPUT_STREAM (input), error);
g_markup_parse_context_free (pcontext);
g_object_unref (input);
if (!retval) {
symbols_parse_data_free (data);
return FALSE;
}
symbols_parse_data_free (data);
return TRUE;
}
static GList *
parse_prerequisites (const gchar *path, GError **error)
{
PrerequisitesParseData *data;
GMarkupParseContext *pcontext;
GFile *file;
GFileInputStream *input;
GList *prerequisites;
gboolean retval;
file = g_file_new_for_path (path);
input = g_file_read (file, NULL, error);
g_object_unref (file);
if (input == NULL)
return FALSE;
data = prerequisites_parse_data_new ();
pcontext = g_markup_parse_context_new (&prerequisites_parser,
0,
data,
NULL);
retval = parse (pcontext, G_INPUT_STREAM (input), error);
g_markup_parse_context_free (pcontext);
g_object_unref (input);
if (!retval) {
prerequisites_parse_data_free (data);
return NULL;
}
prerequisites = data->prerequisites;
data->prerequisites = NULL;
prerequisites_parse_data_free (data);
return prerequisites;
}
static GList *
parse_keyboards (const gchar *path, GError **error)
{
KeyboardsParseData *data;
GMarkupParseContext *pcontext;
GFile *file;
GFileInputStream *input;
GList *keyboards;
gboolean retval;
file = g_file_new_for_path (path);
input = g_file_read (file, NULL, error);
g_object_unref (file);
if (input == NULL)
return NULL;
data = keyboards_parse_data_new ();
pcontext = g_markup_parse_context_new (&keyboards_parser,
0,
data,
NULL);
retval = parse (pcontext, G_INPUT_STREAM (input), error);
g_object_unref (input);
g_markup_parse_context_free (pcontext);
if (!retval) {
keyboards_parse_data_free (data);
return NULL;
}
keyboards = data->keyboards;
data->keyboards = NULL;
keyboards_parse_data_free (data);
return keyboards;
}
static void scale_bounds_callback (EekElement *element,
gpointer user_data);
static void
scale_bounds (EekElement *element,
gdouble scale)
{
EekBounds bounds;
eek_element_get_bounds (element, &bounds);
bounds.x *= scale;
bounds.y *= scale;
bounds.width *= scale;
bounds.height *= scale;
eek_element_set_bounds (element, &bounds);
if (EEK_IS_CONTAINER(element))
eek_container_foreach_child (EEK_CONTAINER(element),
scale_bounds_callback,
&scale);
}
static void
scale_bounds_callback (EekElement *element,
gpointer user_data)
{
scale_bounds (element, *(gdouble *)user_data);
}
static void scale_keyboard (EekKeyboard *keyboard,
gdouble width,
gdouble height)
{
gdouble scale;
EekBounds bounds;
gsize n_outlines;
guint i;
eek_element_get_bounds (EEK_ELEMENT(keyboard), &bounds);
if (width * bounds.height < height * bounds.width)
scale = width / bounds.width;
else
scale = height / bounds.height;
scale_bounds (EEK_ELEMENT(keyboard), scale);
n_outlines = eek_keyboard_get_n_outlines (keyboard);
for (i = 0; i < n_outlines; i++) {
EekOutline *outline = eek_keyboard_get_outline (keyboard, i);
gint j;
for (j = 0; j < outline->num_points; j++) {
outline->points[j].x *= scale;
outline->points[j].y *= scale;
}
}
}
static gboolean
validate (const gchar **valid_path_list,
gsize valid_path_list_len,
const gchar *element_name,
GSList *element_stack,
GError **error)
{
gint i;
gchar *element_path;
GSList *head, *p;
GString *string;
head = g_slist_prepend (element_stack, (gchar *)element_name);
string = g_string_sized_new (64);
for (p = head; p; p = p->next) {
g_string_append (string, p->data);
if (g_slist_next (p))
g_string_append (string, "/");
}
element_path = g_string_free (string, FALSE);
g_slist_free1 (head);
for (i = 0; i < valid_path_list_len; i++)
if (g_strcmp0 (element_path, valid_path_list[i]) == 0)
break;
g_free (element_path);
if (i == valid_path_list_len) {
gchar *reverse_element_path;
head = g_slist_reverse (g_slist_copy (element_stack));
string = g_string_sized_new (64);
for (p = head; p; p = p->next) {
g_string_append (string, p->data);
if (g_slist_next (p))
g_string_append (string, "/");
}
reverse_element_path = g_string_free (string, FALSE);
abort ();
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"%s cannot appear as %s",
element_name,
reverse_element_path);
g_free (reverse_element_path);
return FALSE;
}
return TRUE;
}
static gboolean
parse (GMarkupParseContext *pcontext,
GInputStream *input,
GError **error)
{
gchar buffer[BUFSIZE];
while (1) {
gssize nread = g_input_stream_read (input,
buffer,
sizeof (buffer),
NULL,
error);
if (nread < 0)
return FALSE;
if (nread == 0)
break;
if (!g_markup_parse_context_parse (pcontext, buffer, nread, error))
return FALSE;
}
return g_markup_parse_context_end_parse (pcontext, error);
}
static const gchar *
get_attribute (const gchar **names, const gchar **values, const gchar *name)
{
for (; *names && *values; names++, values++) {
if (g_strcmp0 (*names, name) == 0)
return *values;
}
return NULL;
}
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