X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=atspi%2Fatspi-accessible.c;h=b5d7616e962426b2090101d5b0f522d2a1f0b47e;hb=5016c77a44ff9bb5ce595a32429319d189839063;hp=c3392bd4558b30f424c2ee10e7ab891dacc86421;hpb=2a9f101b5bdcd8f382b6a730750e0352f711fd72;p=platform%2Fupstream%2Fat-spi2-core.git diff --git a/atspi/atspi-accessible.c b/atspi/atspi-accessible.c index c3392bd..b5d7616 100644 --- a/atspi/atspi-accessible.c +++ b/atspi/atspi-accessible.c @@ -7,28 +7,82 @@ * Copyright 2010, 2011 Novell, Inc. * * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public + * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. + * version 2.1 of the License, or (at your option) any later version. * * This library 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 - * Library General Public License for more details. + * Lesser General Public License for more details. * - * You should have received a copy of the GNU Library General Public + * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. */ #include "atspi-private.h" #include "atspi-accessible-private.h" #include +enum { + REGION_CHANGED, + LAST_SIGNAL +}; + static gboolean enable_caching = FALSE; static guint quark_locale; +static guint atspi_accessible_signals[LAST_SIGNAL] = { 0, }; + +static gboolean +screen_reader_signal_watcher (GSignalInvocationHint *signal_hint, + guint n_param_values, + const GValue *param_values, + gpointer data) +{ + GObject *object; + AtspiAccessible *accessible; + GSignalQuery signal_query; + const char *name; + DBusMessage *signal; + DBusMessageIter iter, iter_struct, iter_variant, iter_array; + dbus_int32_t detail1, detail2; + const char *detail = ""; + + object = g_value_get_object (param_values + 0); + g_return_val_if_fail (ATSPI_IS_ACCESSIBLE(object), FALSE); + + g_signal_query (signal_hint->signal_id, &signal_query); + name = signal_query.signal_name; + detail1 = g_value_get_int (param_values + 1); + detail2 = g_value_get_int (param_values + 2); + accessible = ATSPI_ACCESSIBLE (object); + + signal = dbus_message_new_signal (ATSPI_DBUS_PATH_SCREEN_READER, + ATSPI_DBUS_INTERFACE_EVENT_SCREEN_READER, + "RegionChanged"); + dbus_message_iter_init_append (signal, &iter); + dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &detail); + dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &detail1); + dbus_message_iter_append_basic (&iter, DBUS_TYPE_INT32, &detail2); + dbus_message_iter_open_container (&iter, DBUS_TYPE_VARIANT, "(so)", + &iter_variant); + dbus_message_iter_open_container (&iter_variant, DBUS_TYPE_STRUCT, NULL, + &iter_struct); + dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_STRING, &accessible->parent.app->bus_name); + dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_OBJECT_PATH, &accessible->parent.path); + dbus_message_iter_close_container (&iter_variant, &iter_struct); + dbus_message_iter_close_container (&iter, &iter_variant); + dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY, "{sv}", + &iter_array); + dbus_message_iter_close_container (&iter, &iter_array); + dbus_connection_send (_atspi_bus (), signal, NULL); + dbus_message_unref (signal); + return TRUE; +} + static void atspi_action_interface_init (AtspiAction *action) { @@ -109,6 +163,13 @@ static gint accessible_count = 0; #endif static void +atspi_accessible_unref (GObject *accessible) +{ + if (accessible != NULL) + g_object_unref(accessible); +} + +static void atspi_accessible_init (AtspiAccessible *accessible) { #ifdef DEBUG_REF_COUNTS @@ -118,6 +179,8 @@ atspi_accessible_init (AtspiAccessible *accessible) #endif accessible->priv = atspi_accessible_get_instance_private (accessible); + + accessible->children = g_ptr_array_new_with_free_func (atspi_accessible_unref); } static void @@ -126,8 +189,7 @@ atspi_accessible_dispose (GObject *object) AtspiAccessible *accessible = ATSPI_ACCESSIBLE (object); AtspiEvent e; AtspiAccessible *parent; - GList *children; - GList *l; + gint i; /* TODO: Only fire if object not already marked defunct */ memset (&e, 0, sizeof (e)); @@ -137,45 +199,32 @@ atspi_accessible_dispose (GObject *object) e.detail2 = 0; _atspi_send_event (&e); - if (accessible->states) - { - g_object_unref (accessible->states); - accessible->states = NULL; - } + g_clear_object (&accessible->states); parent = accessible->accessible_parent; - if (parent && parent->children) - { - GList*ls = g_list_find (parent->children, accessible); - if(ls) - { - gboolean replace = (ls == parent->children); - ls = g_list_remove (ls, accessible); - if (replace) - parent->children = ls; - g_object_unref (object); - } - } - if (parent) { - g_object_unref (parent); accessible->accessible_parent = NULL; + if (parent->children) + g_ptr_array_remove (parent->children, accessible); + g_object_unref (parent); } - children = accessible->children; - accessible->children = NULL; - for (l = children; l; l = l->next) + if (accessible->children) for (i = accessible->children->len - 1; i >= 0; i--) { - AtspiAccessible *child = l->data; + AtspiAccessible *child = g_ptr_array_index (accessible->children, i); if (child && child->accessible_parent == accessible) { - g_object_unref (accessible); child->accessible_parent = NULL; + g_object_unref (accessible); } - g_object_unref (child); } - g_list_free (children); + + if (accessible->children) + { + g_ptr_array_free (accessible->children, TRUE); + accessible->children = NULL; + } G_OBJECT_CLASS (atspi_accessible_parent_class) ->dispose (object); } @@ -185,13 +234,14 @@ atspi_accessible_finalize (GObject *object) { AtspiAccessible *accessible = ATSPI_ACCESSIBLE (object); - g_free (accessible->description); - g_free (accessible->name); + g_free (accessible->description); + g_free (accessible->name); + if (accessible->attributes) g_hash_table_unref (accessible->attributes); - if (accessible->priv->cache) - g_hash_table_destroy (accessible->priv->cache); + if (accessible->priv->cache) + g_hash_table_destroy (accessible->priv->cache); #ifdef DEBUG_REF_COUNTS accessible_count--; @@ -199,8 +249,9 @@ atspi_accessible_finalize (GObject *object) g_print ("at-spi: finalize: %d objects\n", accessible_count); #endif - G_OBJECT_CLASS (atspi_accessible_parent_class) - ->finalize (object); + G_OBJECT_CLASS (atspi_accessible_parent_class)->finalize (object); + + /* TODO: remove emission hook */ } static void @@ -212,6 +263,33 @@ atspi_accessible_class_init (AtspiAccessibleClass *klass) object_class->finalize = atspi_accessible_finalize; quark_locale = g_quark_from_string ("accessible-locale"); + + /** + * AtspiAccessible::region-changed: + * @atspiaccessible: the object which received the signal + * @arg1: an integer specifying the current offset of the text being read, + * if the object is textual. + * @arg2: an integer specifying the ending offset of the text being read, + * if the object is textual. + * + * The signal "region-changed" is emitted by a screen reader to indicate + * that it is now reading or tracking a new object, or, a new piece of + * text within an object. This allows a magnifier to gain the information + * needed to highlight the object that the screen reader is reading. + */ + atspi_accessible_signals[REGION_CHANGED] = + g_signal_new ("region_changed", + G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (AtspiAccessibleClass, region_changed), + NULL, NULL, + atspi_marshal_VOID__INT_INT, + G_TYPE_NONE, + 2, G_TYPE_INT, G_TYPE_INT); + + g_signal_add_emission_hook (atspi_accessible_signals[REGION_CHANGED], 0, + screen_reader_signal_watcher, NULL, + (GDestroyNotify) NULL); } /** @@ -220,7 +298,7 @@ atspi_accessible_class_init (AtspiAccessibleClass *klass) * * Gets the name of an #AtspiAccessible object. * - * Returns: a UTF-8 string indicating the name of the #AtspiAccessible object + * Returns: a UTF-8 string indicating the name of the #AtspiAccessible object * or NULL on exception. **/ gchar * @@ -237,11 +315,62 @@ atspi_accessible_get_name (AtspiAccessible *obj, GError **error) return g_strdup (obj->name); } + +/** + * atspi_accessible_get_unique_id: + * @obj: a pointer to the #AtspiAccessible object on which to operate. + * + * Gets the identificator, uniquely identifying object, or NULL if an error occured. + * + * Returns: a UTF-8 string describing the #AtspiAccessible object + * or NULL on exception or NULL object passed. + **/ +gchar * +atspi_accessible_get_unique_id(AtspiAccessible *obj, GError **error) +{ + if (!obj) { + g_set_error(error, ATSPI_ERROR, ATSPI_ERROR_IPC, "argument is null"); + return NULL; + } + + gchar *id = NULL; + gchar *bus_name = atspi_accessible_get_bus_name(obj, error); + if (bus_name && bus_name[0]) { + gchar *path = atspi_accessible_get_path(obj, error); + if (path && path[0]) + id = g_strdup_printf("%s:%s", bus_name, path); + else + g_set_error(error, ATSPI_ERROR, ATSPI_ERROR_IPC, "failed to get path"); + g_free(path); + } + else + g_set_error(error, ATSPI_ERROR, ATSPI_ERROR_IPC, "failed to get bus name"); + g_free(bus_name); + return id; +} + +/** + * atspi_accessible_get_bus_name: + * @obj: a pointer to the #AtspiAccessible object on which to operate. + * + * Gets the bus name, where object belongs. + * + * Returns: a UTF-8 string describing the #AtspiAccessible object's + * bus name or empty string on exception or NULL object passed. + **/ +gchar * +atspi_accessible_get_bus_name(AtspiAccessible *obj, GError **error) +{ + if (!obj || !obj->parent.app) + return g_strdup(""); + return g_strdup (obj->parent.app->bus_name); +} + /** * atspi_accessible_get_path: * @obj: a pointer to the #AtspiAccessible object on which to operate. * - * Gets the path, uniquely identifying object. + * Gets the path, uniquely identifying object over its bus name. * * Returns: a UTF-8 string describing the #AtspiAccessible object * or empty string on exception or NULL object passed. @@ -263,12 +392,452 @@ atspi_accessible_get_path(AtspiAccessible *obj, GError **error) } /** + * atspi_accessible_get_navigable_at_point: + * @root: a pointer to the #AtspiAccessible to start search from. + * @x: a #gint specifying the x coordinate of the point in question. + * @y: a #gint specifying the y coordinate of the point in question. + * @ctype: the coordinate system of the point (@x, @y) + * (e.g. ATSPI_COORD_TYPE_WINDOW, ATSPI_COORD_TYPE_SCREEN). + * + * Finds the accessible element closest to user (highest in z-order), at a given coordinate within an #AtspiAccessible. + * This should be the element, that should be picked, when doing mouse click or finger tap at given coordinates. + * + * Returns: (nullable) (transfer full): a pointer to an + * #AtspiAccessible descendant (of any depth) of the specified component which + * contains the point (@x, @y), or NULL if no descendant contains + * the point. + **/ +AtspiAccessible * +atspi_accessible_get_navigable_at_point (AtspiAccessible *root, + gint x, + gint y, + AtspiCoordType ctype, GError **error) +{ + dbus_int32_t d_x = x, d_y = y; + dbus_uint32_t d_ctype = ctype; + DBusMessage *reply; + AtspiAccessible *return_value = NULL; + unsigned char recurse = 0; + DBusMessageIter iter; + AtspiAccessible *deputy = NULL; + + g_return_val_if_fail (root != NULL, NULL); + do { + reply = _atspi_dbus_call_partial (root, atspi_interface_accessible, "GetNavigableAtPoint", error, "iiu", d_x, d_y, d_ctype); + // call failed, error is set, so we bail out + if (!reply) { + if (deputy) g_object_unref(deputy); + if (return_value) g_object_unref(return_value); + return NULL; + } + _ATSPI_DBUS_CHECK_SIG (reply, "(so)y(so)", NULL, NULL); + + dbus_message_iter_init (reply, &iter); + AtspiAccessible *tmp = _atspi_dbus_return_accessible_from_iter (&iter); + + unsigned char value = 0; + dbus_message_iter_get_basic (&iter, &value); + dbus_message_iter_next (&iter); + recurse = (value != 0); + + /* keep deputy if tmp has deputy */ + if (!deputy) + deputy = _atspi_dbus_return_accessible_from_iter (&iter); + + dbus_message_unref(reply); + + if (!tmp) { + if (deputy) { + /* TODO: need to check deputy works for return value */ + if (return_value) + g_object_unref(return_value); + return deputy; + } + break; + } + + if (return_value) + g_object_unref(return_value); + return_value = root = tmp; + } while(recurse); + return return_value; +} + +/** + * atspi_accessible_get_reading_material: + * @obj: a pointer to the #AtspiAccessible object on which to operate. + * + * Gets reading material + * + * Returns: reading material to be used screen-reader side. This is not stable. + * You have to handle all alocated memory as below on screen-reader side. + * + * AtspiAccessibleReadingMaterial *rm + * g_object_unref(rm->parent); + * g_object_unref(rm->described_by_accessible); + * g_hash_table_unref(rm->attributes); + * free(rm->name); + * free(rm->labeled_by_name); + * free(rm->text_interface_name); + * free(rm->localized_role_name); + * free(rm->description); + * free(rm); + **/ +AtspiAccessibleReadingMaterial * +atspi_accessible_get_reading_material (AtspiAccessible *obj, GError **error) +{ + AtspiAccessible *parent; + AtspiAccessibleReadingMaterial *reading_material = NULL; + const char *name; + double current_value; + gint count; + guint64 val; + DBusMessage *reply; + DBusMessageIter iter; + DBusMessageIter iter_array; + dbus_uint32_t role; + dbus_uint32_t *states; + dbus_int32_t index_in_parent; + dbus_int32_t child_count; + dbus_bool_t is_selected; + + g_return_val_if_fail (obj != NULL, NULL); + + reply = _atspi_dbus_call_partial (obj, atspi_interface_accessible, "GetReadingMaterial", error, ""); + + _ATSPI_DBUS_CHECK_SIG (reply, "a{ss}sssuausiddddsibbii(so)auiui(so)", NULL, NULL); + + reading_material = calloc(1, sizeof(AtspiAccessibleReadingMaterial)); + if (!reading_material) + { + return reading_material; + } + + dbus_message_iter_init (reply, &iter); + + /* get attributes */ + reading_material->attributes = _atspi_dbus_hash_from_iter (&iter); + dbus_message_iter_next (&iter); + + /* get name */ + dbus_message_iter_get_basic (&iter, &name); + reading_material->name = g_strdup (name); + dbus_message_iter_next (&iter); + + /* get name of relation LABELED_BY */ + dbus_message_iter_get_basic (&iter, &name); + reading_material->labeled_by_name = g_strdup (name); + dbus_message_iter_next (&iter); + + /* get name of text interface */ + dbus_message_iter_get_basic (&iter, &name); + reading_material->text_interface_name = g_strdup (name); + dbus_message_iter_next (&iter); + + /* get role */ + dbus_message_iter_get_basic (&iter, &role); + reading_material->role = role; + dbus_message_iter_next (&iter); + + /* get state set */ + dbus_message_iter_recurse (&iter, &iter_array); + dbus_message_iter_get_fixed_array (&iter_array, &states, &count); + val = ((guint64)states [1]) << 32; + val += states [0]; + reading_material->states = val; + dbus_message_iter_next (&iter); + + /* get localized role name */ + dbus_message_iter_get_basic (&iter, &name); + reading_material->localized_role_name = g_strdup (name); + dbus_message_iter_next (&iter); + + /* get child count */ + dbus_message_iter_get_basic (&iter, &child_count); + reading_material->child_count = child_count; + dbus_message_iter_next (&iter); + + /* get current value */ + dbus_message_iter_get_basic (&iter, ¤t_value); + reading_material->value = current_value; + dbus_message_iter_next (&iter); + + /* get minimum increment */ + dbus_message_iter_get_basic (&iter, ¤t_value); + reading_material->increment = current_value; + dbus_message_iter_next (&iter); + + /* get maximum value */ + dbus_message_iter_get_basic (&iter, ¤t_value); + reading_material->upper = current_value; + dbus_message_iter_next (&iter); + + /* get minimum value */ + dbus_message_iter_get_basic (&iter, ¤t_value); + reading_material->lower = current_value; + dbus_message_iter_next (&iter); + + /* get description */ + dbus_message_iter_get_basic (&iter, &name); + reading_material->description = g_strdup (name); + dbus_message_iter_next (&iter); + + /* get index in parent */ + dbus_message_iter_get_basic (&iter, &index_in_parent); + reading_material->index_in_parent = index_in_parent; + dbus_message_iter_next (&iter); + + /* get selected in parent */ + dbus_message_iter_get_basic (&iter, &is_selected); + reading_material->is_selected_in_parent = is_selected; + dbus_message_iter_next (&iter); + + /* get has checkbox child */ + dbus_message_iter_get_basic (&iter, &is_selected); + reading_material->has_checkbox_child = is_selected; + dbus_message_iter_next (&iter); + + /* get list children count */ + dbus_message_iter_get_basic (&iter, &child_count); + reading_material->list_children_count = child_count; + dbus_message_iter_next (&iter); + + /* get first selected child index */ + dbus_message_iter_get_basic (&iter, &index_in_parent); + reading_material->first_selected_child_index = index_in_parent; + dbus_message_iter_next (&iter); + + //////////////// + /* get parent */ + parent = _atspi_dbus_return_accessible_from_iter (&iter); + reading_material->parent = parent; + + /* parent states */ + dbus_message_iter_recurse (&iter, &iter_array); + dbus_message_iter_get_fixed_array (&iter_array, &states, &count); + val = ((guint64)states [1]) << 32; + val += states [0]; + reading_material->parent_states = val; + dbus_message_iter_next (&iter); + + /* get parent child count */ + dbus_message_iter_get_basic (&iter, &child_count); + reading_material->parent_child_count = child_count; + dbus_message_iter_next (&iter); + + /* get parent role */ + dbus_message_iter_get_basic (&iter, &role); + reading_material->parent_role = role; + dbus_message_iter_next (&iter); + + /* get parent selected child count */ + dbus_message_iter_get_basic (&iter, &child_count); + reading_material->parent_selected_child_count = child_count; + dbus_message_iter_next (&iter); + + //////////////////////////////////////// + /* get relation object - DESCRIBED_BY */ + parent = _atspi_dbus_return_accessible_from_iter (&iter); + reading_material->described_by_accessible = parent; + + return reading_material; +} + +/** + * atspi_accessible_get_default_label_info: + * @obj: a pointer to the #AtspiAccessible object would be window. + * + * Gets default label information + * + * Returns: default label information to be used screen-reader side. + * This is not stable. And this depends on toolkit side UI definition. + * The candidate of default label object could be changed by UI definition. + * You have to handle all alocated memory as below on screen-reader side. + * + * AtspiAccessibleDefaultLabelInfo *dli + * g_hash_table_unref(dli->attributes); + + * g_object_unref(dli->obj); + * free(dli); + **/ +AtspiAccessibleDefaultLabelInfo * +atspi_accessible_get_default_label_info (AtspiAccessible *obj, GError **error) +{ + AtspiAccessibleDefaultLabelInfo *default_label_info = NULL; + AtspiAccessible *default_label_object; + dbus_uint32_t role; + DBusMessage *reply; + DBusMessageIter iter; + + g_return_val_if_fail (obj != NULL, NULL); + + reply = _atspi_dbus_call_partial (obj, atspi_interface_accessible, "GetDefaultLabelInfo", error, ""); + + _ATSPI_DBUS_CHECK_SIG (reply, "(so)ua{ss}", NULL, NULL); + + default_label_info = calloc(1, sizeof(AtspiAccessibleDefaultLabelInfo)); + if (!default_label_info) + { + return default_label_info; + } + + dbus_message_iter_init (reply, &iter); + + default_label_object = _atspi_dbus_return_accessible_from_iter (&iter); + default_label_info->obj = default_label_object; + + dbus_message_iter_get_basic (&iter, &role); + default_label_info->role = role; + dbus_message_iter_next (&iter); + + default_label_info->attributes = _atspi_dbus_hash_from_iter (&iter); + dbus_message_iter_next (&iter); + + return default_label_info; +} + +static unsigned char are_objects_on_the_same_bus(AtspiAccessible *obj1, AtspiAccessible *obj2) +{ + const char *bus_name_1 = obj1->parent.app->bus_name; + const char *bus_name_2 = obj2->parent.app->bus_name; + return strcmp(bus_name_1, bus_name_2) == 0; +} + +static unsigned char object_is_valid(AtspiAccessible *obj) +{ + if (!obj) + return 0; + AtspiStateSet *ss = atspi_accessible_get_state_set(obj); + if (!ss) + return 0; + unsigned char valid = atspi_state_set_contains(ss, ATSPI_STATE_DEFUNCT) == 0; + g_object_unref(ss); + return valid; +} + +typedef enum { + NEIGHBOR_SEARCH_MODE_NORMAL = 0, + NEIGHBOR_SEARCH_MODE_RECURSE_FROM_ROOT = 1, + NEIGHBOR_SEARCH_MODE_CONTINUE_AFTER_FAILED_RECURSING = 2, + NEIGHBOR_SEARCH_MODE_RECURSE_TO_OUTSIDE = 3, +} GetNeighborSearchMode; +/** + * atspi_accessible_get_neighbor: + * @root: a pointer to a #AtspiAccessible, which represents current root of subtree to search + * @start: a pointer to the #AtspiAccessible to start search from (can be null, which means start from root) + * @direction: direction, in which search (forward or backward) + * + * Calculates next (or previous) accessible element in logical order or null if none found. + * + * Returns: (nullable) (transfer full): a pointer to an + * #AtspiAccessible element, which is next (previous) in logical order or null if none found. + **/ +AtspiAccessible * +atspi_accessible_get_neighbor (AtspiAccessible *root, + AtspiAccessible *start, + AtspiNeighborSearchDirection direction, + GError **error) +{ + g_return_val_if_fail (object_is_valid(root), NULL); + if (!object_is_valid(start)) + start = root; + const char *root_path = ATSPI_OBJECT(root)->path; + AtspiAccessible *return_value = NULL; + g_object_ref(start); + unsigned char recurse; + GetNeighborSearchMode search_mode = NEIGHBOR_SEARCH_MODE_NORMAL; + GQueue *children_root_stack = g_queue_new(); + DBusMessageIter iter; + + while(1) { + const char *path = are_objects_on_the_same_bus(root, start) ? root_path : ""; + DBusMessage *reply = _atspi_dbus_call_partial (start, atspi_interface_accessible, "GetNeighbor", error, "sii", path, (int)direction, (int)search_mode); + // call failed, error is set, so we bail out + if (!reply) break; + + _ATSPI_DBUS_CHECK_SIG (reply, "(so)y", error, NULL); + dbus_message_iter_init (reply, &iter); + AtspiAccessible *ret = _atspi_dbus_return_accessible_from_iter (&iter); + + unsigned char value = 0; + dbus_message_iter_get_basic (&iter, &value); + dbus_message_iter_next (&iter); + recurse = (value != 0); + + dbus_message_unref(reply); + + // got return value and request for recursive search, it means ret is on another bridge, than start + // thus we're recursing. should the recurse failed to find anything it will end with + if (ret && recurse) { + g_object_unref(G_OBJECT(start)); + start = ret; + g_object_ref(start); + if (are_objects_on_the_same_bus(root, ret)) + { + search_mode = NEIGHBOR_SEARCH_MODE_RECURSE_TO_OUTSIDE; + } + else + { + g_queue_push_tail(children_root_stack, ret); + search_mode = NEIGHBOR_SEARCH_MODE_RECURSE_FROM_ROOT; + } + continue; + } + // found the one we've been looking for + if (ret) { + g_object_unref(G_OBJECT(start)); + return_value = ret; + break; + } + + // we've stepped into different bridges previously and now we're going back to the last one + // and continuing search where we left + if (!g_queue_is_empty(children_root_stack)) { + g_object_unref(G_OBJECT(start)); + start = g_queue_pop_tail(children_root_stack); + + search_mode = NEIGHBOR_SEARCH_MODE_CONTINUE_AFTER_FAILED_RECURSING; + continue; + } + // there's no more bridges to check, but we might have started from one + // in that case there might be bridges "below" start, which we yet have to visit + if (!are_objects_on_the_same_bus(root, start)) { + unsigned char continue_loop = 1; + while(continue_loop) { + AtspiAccessible *parent = atspi_accessible_get_parent(start, NULL); + continue_loop = parent ? are_objects_on_the_same_bus(start, parent) : 0; + g_object_unref(G_OBJECT(start)); + start = parent; + } + + // going up thru parents put us in weird place (we didnt meet root on the way) + // so we bail out + if (!start) + break; + + // start object now points to different bridge and must be treated as "resume after recursing" + search_mode = NEIGHBOR_SEARCH_MODE_CONTINUE_AFTER_FAILED_RECURSING; + continue; + } + + // nothing found + g_object_unref(start); + break; + } + while(!g_queue_is_empty(children_root_stack)) + g_object_unref(g_queue_pop_tail(children_root_stack)); + g_queue_free(children_root_stack); + + return return_value; +} + +/** * atspi_accessible_get_description: * @obj: a pointer to the #AtspiAccessible object on which to operate. * * Gets the description of an #AtspiAccessible object. * - * Returns: a UTF-8 string describing the #AtspiAccessible object + * Returns: a UTF-8 string describing the #AtspiAccessible object * or NULL on exception. **/ gchar * @@ -306,11 +875,12 @@ atspi_accessible_get_parent (AtspiAccessible *obj, GError **error) { g_return_val_if_fail (obj != NULL, NULL); - if (obj->parent.app && - !_atspi_accessible_test_cache (obj, ATSPI_CACHE_PARENT)) + if (!_atspi_accessible_test_cache (obj, ATSPI_CACHE_PARENT)) { DBusMessage *message, *reply; DBusMessageIter iter, iter_variant; + if (!obj->parent.app) + return NULL; message = dbus_message_new_method_call (obj->parent.app->bus_name, obj->parent.path, DBUS_INTERFACE_PROPERTIES, "Get"); @@ -362,7 +932,10 @@ atspi_accessible_get_child_count (AtspiAccessible *obj, GError **error) return ret; } - return g_list_length (obj->children); + if (!obj->children) + return 0; /* assume it's disposed */ + + return obj->children->len; } /** @@ -381,29 +954,41 @@ atspi_accessible_get_child_at_index (AtspiAccessible *obj, GError **error) { AtspiAccessible *child; + DBusMessage *reply; g_return_val_if_fail (obj != NULL, NULL); - if (!_atspi_accessible_test_cache (obj, ATSPI_CACHE_CHILDREN)) + if (_atspi_accessible_test_cache (obj, ATSPI_CACHE_CHILDREN)) { - DBusMessage *reply; - reply = _atspi_dbus_call_partial (obj, atspi_interface_accessible, - "GetChildAtIndex", error, "i", - child_index); - return _atspi_dbus_return_accessible_from_message (reply); + if (!obj->children) + return NULL; /* assume disposed */ + + child = g_ptr_array_index (obj->children, child_index); + if (child) + return g_object_ref (child); } - child = g_list_nth_data (obj->children, child_index); + reply = _atspi_dbus_call_partial (obj, atspi_interface_accessible, + "GetChildAtIndex", error, "i", child_index); + child = _atspi_dbus_return_accessible_from_message (reply); + if (!child) return NULL; - return g_object_ref (child); + + if (_atspi_accessible_test_cache (obj, ATSPI_CACHE_CHILDREN)) + { + if (child_index >= obj->children->len) + g_ptr_array_set_size (obj->children, child_index + 1); + g_ptr_array_index (obj->children, child_index) = g_object_ref (child); + } + return child; } /** * atspi_accessible_get_index_in_parent: * @obj: a pointer to the #AtspiAccessible object on which to operate. * - * Gets the index of an #AtspiAccessible object within its parent's + * Gets the index of an #AtspiAccessible object within its parent's * #AtspiAccessible children list. * * Returns: a #glong indicating the index of the #AtspiAccessible object @@ -413,31 +998,27 @@ atspi_accessible_get_child_at_index (AtspiAccessible *obj, gint atspi_accessible_get_index_in_parent (AtspiAccessible *obj, GError **error) { - GList *l; gint i = 0; + dbus_int32_t ret = -1; g_return_val_if_fail (obj != NULL, -1); - if (_atspi_accessible_test_cache (obj, ATSPI_CACHE_PARENT) && - !obj->accessible_parent) - return -1; - if (!obj->accessible_parent || - !_atspi_accessible_test_cache (obj->accessible_parent, - ATSPI_CACHE_CHILDREN)) + if (_atspi_accessible_test_cache (obj, ATSPI_CACHE_PARENT)) { - dbus_int32_t ret = -1; - _atspi_dbus_call (obj, atspi_interface_accessible, - "GetIndexInParent", NULL, "=>i", &ret); - return ret; - } + if (!obj->accessible_parent) + return -1; - l = obj->accessible_parent->children; - while (l) - { - if (l->data == obj) return i; - l = g_list_next (l); - i++; + if (!_atspi_accessible_test_cache (obj->accessible_parent, ATSPI_CACHE_CHILDREN) || !obj->accessible_parent->children) + goto dbus; + + for (i = 0; i < obj->accessible_parent->children->len; i++) + if (g_ptr_array_index (obj->accessible_parent->children, i) == obj) + return i; } - return -1; + +dbus: + _atspi_dbus_call (obj, atspi_interface_accessible, + "GetIndexInParent", NULL, "=>i", &ret); + return ret; } typedef struct @@ -1572,10 +2153,12 @@ append_const_val (GArray *array, const gchar *val) GArray * atspi_accessible_get_interfaces (AtspiAccessible *obj) { - GArray *ret = g_array_new (TRUE, TRUE, sizeof (gchar *)); + GArray *ret; g_return_val_if_fail (obj != NULL, NULL); + ret = g_array_new (TRUE, TRUE, sizeof (gchar *)); + append_const_val (ret, "Accessible"); if (atspi_accessible_is_action (obj)) append_const_val (ret, "Action"); @@ -1647,21 +2230,22 @@ atspi_accessible_set_cache_mask (AtspiAccessible *accessible, AtspiCache mask) /** * atspi_accessible_clear_cache: - * @accessible: The #AtspiAccessible whose cache to clear. + * @obj: The #AtspiAccessible whose cache to clear. * * Clears the cached information for the given accessible and all of its * descendants. */ void -atspi_accessible_clear_cache (AtspiAccessible *accessible) +atspi_accessible_clear_cache (AtspiAccessible *obj) { - GList *l; + gint i; - if (accessible) + if (obj) { - accessible->cached_properties = ATSPI_CACHE_NONE; - for (l = accessible->children; l; l = l->next) - atspi_accessible_clear_cache (l->data); + obj->cached_properties = ATSPI_CACHE_NONE; + if (obj->children) + for (i = 0; i < obj->children->len; i++) + atspi_accessible_clear_cache (g_ptr_array_index (obj->children, i)); } } @@ -1790,6 +2374,33 @@ atspi_accessible_get_object_locale (AtspiAccessible *accessible, GError **error) return locale; } +/** + * atspi_accessible_get_accessible_id: + * @obj: an #AtspiAccessible + * + * Gets the accessible id of the accessible. This is not meant to be presented + * to the user, but to be an id which is stable over application development. + * Typically, this is the gtkbuilder id. + * + * Since: 2.34 + * + * Returns: a character string representing the accessible id of the + * #AtspiAccessible object or NULL on exception. + **/ +gchar* +atspi_accessible_get_accessible_id (AtspiAccessible *obj, GError **error) +{ + gchar *accessible_id; + + g_return_val_if_fail (obj != NULL, NULL); + + if (!_atspi_dbus_get_property (obj, atspi_interface_accessible, + "AccessibleId", error, "s", &accessible_id)) + return NULL; + + return accessible_id; +} + void free_value (gpointer data) {