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authorChris Toshok <toshok@src.gnome.org>2002-11-30 15:54:16 +0800
committerChris Toshok <toshok@src.gnome.org>2002-11-30 15:54:16 +0800
commit9ec429940d65bc472569f9cdd21a3953112ffb0d (patch)
tree17f9132b66a62f25e250de4164500a876edf52bb /a11y/e-text/gal-a11y-e-text.c
parentbf795a3e81169f1391ac332dbf057243ab0a7992 (diff)
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gal a11y work from clahey
svn path=/trunk/; revision=18959
Diffstat (limited to 'a11y/e-text/gal-a11y-e-text.c')
-rw-r--r--a11y/e-text/gal-a11y-e-text.c526
1 files changed, 526 insertions, 0 deletions
diff --git a/a11y/e-text/gal-a11y-e-text.c b/a11y/e-text/gal-a11y-e-text.c
new file mode 100644
index 0000000000..ce32e86fc2
--- /dev/null
+++ b/a11y/e-text/gal-a11y-e-text.c
@@ -0,0 +1,526 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * Authors:
+ * Christopher James Lahey <clahey@ximian.com>
+ *
+ * Copyright (C) 2002 Ximian, Inc.
+ */
+
+#include <config.h>
+#include "gal-a11y-e-text.h"
+#include "gal-a11y-util.h"
+#include <atk/atkobject.h>
+#include <atk/atktable.h>
+#include <atk/atkcomponent.h>
+#include <atk/atkobjectfactory.h>
+#include <atk/atkregistry.h>
+#include <atk/atkgobjectaccessible.h>
+#include "gal/e-text/e-text.h"
+#include <gtk/gtkmain.h>
+
+#define CS_CLASS(a11y) (G_TYPE_INSTANCE_GET_CLASS ((a11y), C_TYPE_STREAM, GalA11yETextClass))
+static GObjectClass *parent_class;
+static AtkComponentIface *component_parent_iface;
+static GType parent_type;
+static gint priv_offset;
+static GQuark quark_accessible_object = 0;
+#define GET_PRIVATE(object) ((GalA11yETextPrivate *) (((char *) object) + priv_offset))
+#define PARENT_TYPE (parent_type)
+
+struct _GalA11yETextPrivate {
+ int dummy;
+};
+
+static void
+et_dispose (GObject *object)
+{
+ if (parent_class->dispose)
+ parent_class->dispose (object);
+}
+
+/* Static functions */
+
+static void
+et_get_extents (AtkComponent *component,
+ gint *x,
+ gint *y,
+ gint *width,
+ gint *height,
+ AtkCoordType coord_type)
+{
+ EText *item = E_TEXT (atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (component)));
+ double real_width;
+ double real_height;
+ int fake_width;
+ int fake_height;
+
+ if (component_parent_iface &&
+ component_parent_iface->get_extents)
+ component_parent_iface->get_extents (component,
+ x,
+ y,
+ &fake_width,
+ &fake_height,
+ coord_type);
+
+ gtk_object_get (GTK_OBJECT (item),
+ "text_width", &real_width,
+ "text_height", &real_height,
+ NULL);
+
+ if (width)
+ *width = real_width;
+ if (height)
+ *height = real_height;
+}
+
+static const gchar *
+et_get_full_text (AtkText *text)
+{
+ EText *etext = E_TEXT (atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (text)));
+ ETextModel *model;
+ const char *full_text;
+
+ gtk_object_get (GTK_OBJECT (etext),
+ "model", &model,
+ NULL);
+
+ full_text = e_text_model_get_text (model);
+
+ return full_text;
+}
+
+static void
+et_set_full_text (AtkEditableText *text,
+ const char *full_text)
+{
+ EText *etext = E_TEXT (atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (text)));
+ ETextModel *model;
+
+ gtk_object_get (GTK_OBJECT (etext),
+ "model", &model,
+ NULL);
+
+ e_text_model_set_text (model, full_text);
+}
+
+static gchar *
+et_get_text (AtkText *text,
+ gint start_offset,
+ gint end_offset)
+{
+ const char *full_text = et_get_full_text (text);
+
+ if (end_offset == -1)
+ end_offset = strlen (full_text);
+ else
+ end_offset = g_utf8_offset_to_pointer (full_text, end_offset) - full_text;
+
+ start_offset = g_utf8_offset_to_pointer (full_text, start_offset) - full_text;
+
+ return g_strndup (full_text + start_offset, end_offset - start_offset);
+}
+
+static gchar *
+et_get_text_after_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ /* Unimplemented */
+ return NULL;
+}
+
+static gchar *
+et_get_text_at_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ /* Unimplemented */
+ return NULL;
+}
+
+static gunichar
+et_get_character_at_offset (AtkText *text,
+ gint offset)
+{
+ const char *full_text = et_get_full_text (text);
+ char *at_offset;
+
+ at_offset = g_utf8_offset_to_pointer (full_text, offset);
+ return g_utf8_get_char_validated (at_offset, -1);
+}
+
+
+static gchar*
+et_get_text_before_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ /* Unimplemented */
+ return NULL;
+}
+
+
+static gint
+et_get_caret_offset (AtkText *text)
+{
+ EText *etext = E_TEXT (atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (text)));
+ const char *full_text = et_get_full_text (text);
+ int offset;
+
+ gtk_object_get (GTK_OBJECT (etext),
+ "cursor_pos", &offset,
+ NULL);
+ offset = g_utf8_pointer_to_offset (full_text, full_text + offset);
+ return offset;
+}
+
+
+static AtkAttributeSet*
+et_get_run_attributes (AtkText *text,
+ gint offset,
+ gint *start_offset,
+ gint *end_offset)
+{
+ /* Unimplemented */
+ return NULL;
+}
+
+
+static AtkAttributeSet*
+et_get_default_attributes (AtkText *text)
+{
+ /* Unimplemented */
+ return NULL;
+}
+
+
+static void
+et_get_character_extents (AtkText *text,
+ gint offset,
+ gint *x,
+ gint *y,
+ gint *width,
+ gint *height,
+ AtkCoordType coords)
+{
+ /* Unimplemented */
+}
+
+
+static gint
+et_get_character_count (AtkText *text)
+{
+ const char *full_text = et_get_full_text (text);
+
+ return g_utf8_strlen (full_text, -1);
+}
+
+
+static gint
+et_get_offset_at_point (AtkText *text,
+ gint x,
+ gint y,
+ AtkCoordType coords)
+{
+ /* Unimplemented */
+ return 0;
+}
+
+
+static gint
+et_get_n_selections (AtkText *text)
+{
+ EText *etext = E_TEXT (atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (text)));
+ if (etext->selection_start !=
+ etext->selection_end)
+ return 1;
+ return 0;
+}
+
+
+static gchar*
+et_get_selection (AtkText *text,
+ gint selection_num,
+ gint *start_offset,
+ gint *end_offset)
+{
+ EText *etext = E_TEXT (atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (text)));
+ if (selection_num == 0 &&
+ etext->selection_start != etext->selection_end) {
+ const char *full_text = et_get_full_text (text);
+
+ if (start_offset)
+ *start_offset = g_utf8_pointer_to_offset (full_text, full_text + etext->selection_start);
+ if (end_offset)
+ *end_offset = g_utf8_pointer_to_offset (full_text, full_text + etext->selection_end);
+
+ return g_strndup (full_text + etext->selection_start, etext->selection_end - etext->selection_start);
+ }
+ return NULL;
+}
+
+
+static gboolean
+et_add_selection (AtkText *text,
+ gint start_offset,
+ gint end_offset)
+{
+ EText *etext = E_TEXT (atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (text)));
+ if (etext->selection_start == etext->selection_end &&
+ start_offset != end_offset) {
+ ETextEventProcessorCommand command;
+ const char *full_text = et_get_full_text (text);
+ ETextEventProcessor *tep;
+
+ start_offset = g_utf8_offset_to_pointer (full_text, start_offset) - full_text;
+ end_offset = g_utf8_offset_to_pointer (full_text, end_offset) - full_text;
+
+ gtk_object_get (GTK_OBJECT (etext),
+ "tep", &tep,
+ NULL);
+
+ command.time = gtk_get_current_event_time ();
+
+ command.action = E_TEP_MOVE;
+ command.position = E_TEP_VALUE;
+ command.value = start_offset;
+ g_signal_emit_by_name (tep, "command", 0, &command);
+
+ command.action = E_TEP_SELECT;
+ command.value = end_offset;
+ g_signal_emit_by_name (tep, "command", 0, &command);
+ return TRUE;
+ }
+ return FALSE;
+}
+
+
+static gboolean
+et_remove_selection (AtkText *text,
+ gint selection_num)
+{
+ /* Unimplemented */
+ return FALSE;
+}
+
+
+static gboolean
+et_set_selection (AtkText *text,
+ gint selection_num,
+ gint start_offset,
+ gint end_offset)
+{
+ /* Unimplemented */
+ return FALSE;
+}
+
+
+static gboolean
+et_set_caret_offset (AtkText *text,
+ gint offset)
+{
+ EText *etext = E_TEXT (atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (text)));
+ const char *full_text = et_get_full_text (text);
+
+ offset = g_utf8_offset_to_pointer (full_text, offset) - full_text;
+ gtk_object_set (GTK_OBJECT (etext),
+ "cursor_pos", &offset,
+ NULL);
+ return TRUE;
+}
+
+static gboolean
+et_set_run_attributes (AtkEditableText *text,
+ AtkAttributeSet *attrib_set,
+ gint start_offset,
+ gint end_offset)
+{
+ /* Unimplemented */
+ return FALSE;
+}
+
+static void
+et_set_text_contents (AtkEditableText *text,
+ const gchar *string)
+{
+ et_set_full_text (text, string);
+}
+
+static void
+et_insert_text (AtkEditableText *text,
+ const gchar *string,
+ gint length,
+ gint *position)
+{
+ /* Utf8 unimplemented */
+
+ const char *full_text = et_get_full_text (ATK_TEXT (text));
+ char *result = g_strdup_printf ("%.*s%.*s%s", *position, full_text, length, string, full_text + *position);
+
+ et_set_full_text (text, result);
+
+ *position += length;
+
+ g_free (result);
+}
+
+static void
+et_copy_text (AtkEditableText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ /* Unimplemented */
+}
+
+static void
+et_cut_text (AtkEditableText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ /* Unimplemented */
+}
+
+static void
+et_delete_text (AtkEditableText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ /* Unimplemented */
+}
+
+static void
+et_paste_text (AtkEditableText *text,
+ gint position)
+{
+ /* Unimplemented */
+}
+
+
+static void
+et_atk_component_iface_init (AtkComponentIface *iface)
+{
+ iface->get_extents = et_get_extents;
+}
+
+static void
+et_atk_text_iface_init (AtkTextIface *iface)
+{
+ iface->get_text = et_get_text;
+ iface->get_text_after_offset = et_get_text_after_offset;
+ iface->get_text_at_offset = et_get_text_at_offset;
+ iface->get_character_at_offset = et_get_character_at_offset;
+ iface->get_text_before_offset = et_get_text_before_offset;
+ iface->get_caret_offset = et_get_caret_offset;
+ iface->get_run_attributes = et_get_run_attributes;
+ iface->get_default_attributes = et_get_default_attributes;
+ iface->get_character_extents = et_get_character_extents;
+ iface->get_character_count = et_get_character_count;
+ iface->get_offset_at_point = et_get_offset_at_point;
+ iface->get_n_selections = et_get_n_selections;
+ iface->get_selection = et_get_selection;
+ iface->add_selection = et_add_selection;
+ iface->remove_selection = et_remove_selection;
+ iface->set_selection = et_set_selection;
+ iface->set_caret_offset = et_set_caret_offset;
+}
+
+static void
+et_atk_editable_text_iface_init (AtkEditableTextIface *iface)
+{
+ iface->set_run_attributes = et_set_run_attributes;
+ iface->set_text_contents = et_set_text_contents;
+ iface->insert_text = et_insert_text;
+ iface->copy_text = et_copy_text;
+ iface->cut_text = et_cut_text;
+ iface->delete_text = et_delete_text;
+ iface->paste_text = et_paste_text;
+}
+
+static void
+et_class_init (GalA11yETextClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ quark_accessible_object = g_quark_from_static_string ("gtk-accessible-object");
+
+ parent_class = g_type_class_ref (PARENT_TYPE);
+
+ object_class->dispose = et_dispose;
+}
+
+static void
+et_init (GalA11yEText *a11y)
+{
+#if 0
+ GalA11yETextPrivate *priv;
+
+ priv = GET_PRIVATE (a11y);
+#endif
+}
+
+/**
+ * gal_a11y_e_text_get_type:
+ * @void:
+ *
+ * Registers the &GalA11yEText class if necessary, and returns the type ID
+ * associated to it.
+ *
+ * Return value: The type ID of the &GalA11yEText class.
+ **/
+GType
+gal_a11y_e_text_get_type (void)
+{
+ static GType type = 0;
+
+ if (!type) {
+ AtkObjectFactory *factory;
+
+ GTypeInfo info = {
+ sizeof (GalA11yETextClass),
+ (GBaseInitFunc) NULL,
+ (GBaseFinalizeFunc) NULL,
+ (GClassInitFunc) et_class_init,
+ (GClassFinalizeFunc) NULL,
+ NULL, /* class_data */
+ sizeof (GalA11yEText),
+ 0,
+ (GInstanceInitFunc) et_init,
+ NULL /* value_text */
+ };
+
+ static const GInterfaceInfo atk_component_info = {
+ (GInterfaceInitFunc) et_atk_component_iface_init,
+ (GInterfaceFinalizeFunc) NULL,
+ NULL
+ };
+ static const GInterfaceInfo atk_text_info = {
+ (GInterfaceInitFunc) et_atk_text_iface_init,
+ (GInterfaceFinalizeFunc) NULL,
+ NULL
+ };
+ static const GInterfaceInfo atk_editable_text_info = {
+ (GInterfaceInitFunc) et_atk_editable_text_iface_init,
+ (GInterfaceFinalizeFunc) NULL,
+ NULL
+ };
+
+ factory = atk_registry_get_factory (atk_get_default_registry (), GNOME_TYPE_CANVAS_ITEM);
+ parent_type = atk_object_factory_get_accessible_type (factory);
+
+ type = gal_a11y_type_register_static_with_private (PARENT_TYPE, "GalA11yEText", &info, 0,
+ sizeof (GalA11yETextPrivate), &priv_offset);
+
+ g_type_add_interface_static (type, ATK_TYPE_COMPONENT, &atk_component_info);
+ g_type_add_interface_static (type, ATK_TYPE_TEXT, &atk_text_info);
+ g_type_add_interface_static (type, ATK_TYPE_EDITABLE_TEXT, &atk_editable_text_info);
+ }
+
+ return type;
+}