forked from AuroraMiddleware/gtk
655 lines
18 KiB
C
655 lines
18 KiB
C
/* gtkpasswordentryaccessible.c: A GtkWidgetAccessible for GtkPasswordEntry
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*
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* Copyright 2020 GNOME Foundation
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gtkpasswordentryaccessibleprivate.h"
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#include "gtkeditable.h"
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#include "gtkimage.h"
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#include "gtkintl.h"
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#include "gtklabel.h"
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#include "gtkpango.h"
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#include "gtkpasswordentryprivate.h"
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#include "gtkstylecontextprivate.h"
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#include "gtktextprivate.h"
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struct _GtkPasswordEntryAccessible
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{
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GtkWidgetAccessible parent_instance;
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int cursor_position;
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int selection_bound;
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};
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static void atk_editable_text_interface_init (AtkEditableTextIface *iface);
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static void atk_text_interface_init (AtkTextIface *iface);
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static void atk_action_interface_init (AtkActionIface *iface);
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G_DEFINE_TYPE_WITH_CODE (GtkPasswordEntryAccessible, gtk_password_entry_accessible, GTK_TYPE_WIDGET_ACCESSIBLE,
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G_IMPLEMENT_INTERFACE (ATK_TYPE_EDITABLE_TEXT, atk_editable_text_interface_init)
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G_IMPLEMENT_INTERFACE (ATK_TYPE_TEXT, atk_text_interface_init)
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G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init))
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static inline GtkText *
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get_text_widget (GtkAccessible *accessible)
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{
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GtkWidget *widget = gtk_accessible_get_widget (accessible);
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if (widget == NULL)
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return NULL;
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GtkPasswordEntry *entry = GTK_PASSWORD_ENTRY (widget);
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return gtk_password_entry_get_text_widget (entry);
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}
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static gunichar
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gtk_password_entry_accessible_get_character_at_offset (AtkText *atk_text,
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int offset)
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{
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GtkText *text;
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char *contents, *index;
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gunichar result;
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result = '\0';
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text = get_text_widget (GTK_ACCESSIBLE (atk_text));
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if (text == NULL)
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return 0;
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if (!gtk_text_get_visibility (text))
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return result;
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contents = gtk_text_get_display_text (text, 0, -1);
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if (offset < g_utf8_strlen (contents, -1))
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{
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index = g_utf8_offset_to_pointer (contents, offset);
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result = g_utf8_get_char (index);
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g_free (contents);
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}
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return result;
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}
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static int
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gtk_password_entry_accessible_get_caret_offset (AtkText *atk_text)
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{
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GtkWidget *widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (atk_text));
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if (widget == NULL)
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return -1;
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int cursor_position = 0;
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gboolean result = gtk_editable_get_selection_bounds (GTK_EDITABLE (widget), NULL, &cursor_position);
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if (!result)
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return -1;
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return cursor_position;
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}
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static gboolean
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gtk_password_entry_accessible_set_caret_offset (AtkText *atk_text,
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int offset)
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{
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GtkWidget *widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (atk_text));
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if (widget == NULL)
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return FALSE;
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gtk_editable_set_position (GTK_EDITABLE (widget), offset);
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return TRUE;
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}
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static int
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gtk_password_entry_accessible_get_character_count (AtkText *atk_text)
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{
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GtkText *text = get_text_widget (GTK_ACCESSIBLE (atk_text));
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if (text == NULL)
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return 0;
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char *display_text = gtk_text_get_display_text (text, 0, -1);
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int char_count = 0;
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if (display_text)
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{
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char_count = g_utf8_strlen (display_text, -1);
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g_free (display_text);
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}
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return char_count;
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}
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static int
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gtk_password_entry_accessible_get_offset_at_point (AtkText *atk_text,
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int x,
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int y,
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AtkCoordType coords)
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{
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GtkText *text = get_text_widget (GTK_ACCESSIBLE (atk_text));
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int index, x_layout, y_layout;
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int x_local, y_local;
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glong offset;
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if (text == NULL)
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return 1;
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gtk_text_get_layout_offsets (text, &x_layout, &y_layout);
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x_local = x - x_layout;
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y_local = y - y_layout;
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if (!pango_layout_xy_to_index (gtk_text_get_layout (text),
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x_local * PANGO_SCALE,
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y_local * PANGO_SCALE,
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&index, NULL))
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{
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if (x_local < 0 || y_local < 0)
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index = 0;
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else
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index = -1;
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}
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offset = -1;
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if (index != -1)
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{
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char *entry_text = gtk_text_get_display_text (text, 0, -1);
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offset = g_utf8_pointer_to_offset (entry_text, entry_text + index);
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g_free (entry_text);
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}
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return offset;
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}
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static void
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atk_text_interface_init (AtkTextIface *iface)
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{
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iface->get_character_at_offset = gtk_password_entry_accessible_get_character_at_offset;
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iface->get_caret_offset = gtk_password_entry_accessible_get_caret_offset;
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iface->set_caret_offset = gtk_password_entry_accessible_set_caret_offset;
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iface->get_character_count = gtk_password_entry_accessible_get_character_count;
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iface->get_offset_at_point = gtk_password_entry_accessible_get_offset_at_point;
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}
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static void
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gtk_password_entry_accessible_set_text_contents (AtkEditableText *text,
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const char *string)
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{
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GtkWidget *widget;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
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if (widget == NULL)
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return;
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if (!gtk_editable_get_editable (GTK_EDITABLE (widget)))
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return;
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gtk_editable_set_text (GTK_EDITABLE (widget), string);
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}
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static void
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gtk_password_entry_accessible_insert_text (AtkEditableText *text,
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const char *string,
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int length,
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int *position)
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{
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GtkWidget *widget;
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GtkEditable *editable;
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int pos = 0;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
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if (widget == NULL)
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return;
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editable = GTK_EDITABLE (widget);
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if (!gtk_editable_get_editable (editable))
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return;
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if (position != NULL)
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pos = *position;
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gtk_editable_insert_text (editable, string, length, &pos);
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gtk_editable_set_position (editable, pos);
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if (position != NULL)
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*position = pos;
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}
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static void
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gtk_password_entry_accessible_delete_text (AtkEditableText *text,
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int start_pos,
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int end_pos)
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{
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GtkWidget *widget;
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GtkEditable *editable;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
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if (widget == NULL)
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return;
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editable = GTK_EDITABLE (widget);
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if (!gtk_editable_get_editable (editable))
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return;
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gtk_editable_delete_text (editable, start_pos, end_pos);
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}
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typedef struct
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{
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GtkEditable *entry;
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int position;
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} PasteData;
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static void
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paste_received_cb (GObject *clipboard,
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GAsyncResult *result,
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gpointer data)
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{
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PasteData *paste = data;
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char *text;
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text = gdk_clipboard_read_text_finish (GDK_CLIPBOARD (clipboard), result, NULL);
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if (text != NULL)
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gtk_editable_insert_text (paste->entry,
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text, -1,
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&(paste->position));
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g_object_unref (paste->entry);
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g_free (paste);
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g_free (text);
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}
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static void
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gtk_password_entry_accessible_paste_text (AtkEditableText *text,
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int position)
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{
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GtkWidget *widget;
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GtkEditable *editable;
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PasteData *paste;
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GdkClipboard *clipboard;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
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if (widget == NULL)
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return;
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editable = GTK_EDITABLE (widget);
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if (!gtk_editable_get_editable (editable))
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return;
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paste = g_new0 (PasteData, 1);
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paste->entry = GTK_EDITABLE (widget);
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paste->position = position;
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g_object_ref (paste->entry);
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clipboard = gtk_widget_get_clipboard (widget);
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gdk_clipboard_read_text_async (clipboard, NULL, paste_received_cb, paste);
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}
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static void
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atk_editable_text_interface_init (AtkEditableTextIface *iface)
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{
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iface->set_text_contents = gtk_password_entry_accessible_set_text_contents;
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iface->insert_text = gtk_password_entry_accessible_insert_text;
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iface->copy_text = NULL;
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iface->cut_text = NULL;
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iface->delete_text = gtk_password_entry_accessible_delete_text;
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iface->paste_text = gtk_password_entry_accessible_paste_text;
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iface->set_run_attributes = NULL;
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}
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static gboolean
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gtk_password_entry_accessible_do_action (AtkAction *action,
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int i)
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{
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GtkWidget *widget;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (action));
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if (widget == NULL)
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return FALSE;
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if (!gtk_widget_get_sensitive (widget) || !gtk_widget_get_visible (widget))
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return FALSE;
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if (i == 0)
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{
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gtk_widget_activate (widget);
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return TRUE;
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}
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if (i == 1)
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{
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GtkText *text = get_text_widget (GTK_ACCESSIBLE (action));
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gboolean visibility = gtk_text_get_visibility (text);
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gtk_text_set_visibility (text, !visibility);
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return TRUE;
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}
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return FALSE;
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}
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static int
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gtk_password_entry_accessible_get_n_actions (AtkAction *action)
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{
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GtkAccessible *accessible = GTK_ACCESSIBLE (action);
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GtkWidget *widget = gtk_accessible_get_widget (accessible);
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if (widget == NULL)
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return 0;
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int n_actions = 1;
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if (gtk_password_entry_get_show_peek_icon (GTK_PASSWORD_ENTRY (widget)))
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n_actions += 1;
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return n_actions;
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}
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static const char *
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gtk_password_entry_accessible_get_keybinding (AtkAction *action,
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int i)
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{
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GtkWidget *widget;
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GtkWidget *label;
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AtkRelationSet *set;
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AtkRelation *relation;
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GPtrArray *target;
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gpointer target_object;
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guint key_val;
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if (i != 0)
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return NULL;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (action));
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if (widget == NULL)
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return NULL;
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set = atk_object_ref_relation_set (ATK_OBJECT (action));
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if (!set)
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return NULL;
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label = NULL;
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relation = atk_relation_set_get_relation_by_type (set, ATK_RELATION_LABELLED_BY);
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if (relation)
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{
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target = atk_relation_get_target (relation);
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target_object = g_ptr_array_index (target, 0);
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label = gtk_accessible_get_widget (GTK_ACCESSIBLE (target_object));
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}
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g_object_unref (set);
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if (GTK_IS_LABEL (label))
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{
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key_val = gtk_label_get_mnemonic_keyval (GTK_LABEL (label));
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if (key_val != GDK_KEY_VoidSymbol)
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return gtk_accelerator_name (key_val, GDK_ALT_MASK);
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}
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return NULL;
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}
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static const char *
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gtk_password_entry_accessible_action_get_name (AtkAction *action,
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int i)
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{
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switch (i)
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{
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case 0:
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return "activate";
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case 1:
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return "peek";
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default:
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break;
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}
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return NULL;
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}
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static const char *
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gtk_password_entry_accessible_action_get_localized_name (AtkAction *action,
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int i)
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{
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if (i == 0)
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return C_("Action name", "Activate");
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if (i == 1)
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return C_("Action name", "Peek");
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return NULL;
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}
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static const char *
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gtk_password_entry_accessible_action_get_description (AtkAction *action,
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int i)
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{
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if (i == 0)
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return C_("Action description", "Activates the entry");
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if (i == 1)
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return C_("Action description", "Reveals the contents the entry");
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return NULL;
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}
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static void
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atk_action_interface_init (AtkActionIface *iface)
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{
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iface->do_action = gtk_password_entry_accessible_do_action;
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iface->get_n_actions = gtk_password_entry_accessible_get_n_actions;
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iface->get_keybinding = gtk_password_entry_accessible_get_keybinding;
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iface->get_name = gtk_password_entry_accessible_action_get_name;
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iface->get_localized_name = gtk_password_entry_accessible_action_get_localized_name;
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iface->get_description = gtk_password_entry_accessible_action_get_description;
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}
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static AtkAttributeSet *
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gtk_password_entry_accessible_get_attributes (AtkObject *accessible)
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{
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GtkWidget *widget;
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AtkAttributeSet *attributes;
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AtkAttribute *placeholder_text;
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char *text = NULL;
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attributes = ATK_OBJECT_CLASS (gtk_password_entry_accessible_parent_class)->get_attributes (accessible);
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
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if (widget == NULL)
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return attributes;
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g_object_get (widget, "placeholder-text", &text, NULL);
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if (text == NULL)
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return attributes;
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placeholder_text = g_malloc (sizeof (AtkAttribute));
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placeholder_text->name = g_strdup ("placeholder-text");
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placeholder_text->value = text;
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attributes = g_slist_append (attributes, placeholder_text);
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return attributes;
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}
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static gboolean
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check_for_selection_change (GtkPasswordEntryAccessible *self,
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GtkEditable *editable)
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{
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gboolean ret_val = FALSE;
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int start, end;
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if (gtk_editable_get_selection_bounds (editable, &start, &end))
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{
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if (end != self->cursor_position ||
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start != self->selection_bound)
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/*
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* This check is here as this function can be called
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* for notification of selection_bound and current_pos.
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* The values of current_pos and selection_bound may be the same
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* for both notifications and we only want to generate one
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* text_selection_changed signal.
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*/
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ret_val = TRUE;
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}
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else
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{
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/* We had a selection */
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ret_val = (self->cursor_position != self->selection_bound);
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}
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self->cursor_position = end;
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self->selection_bound = start;
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return ret_val;
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}
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static void
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on_cursor_position_changed (GObject *gobject,
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GParamSpec *pspec,
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gpointer data)
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{
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GtkPasswordEntryAccessible *self = data;
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GtkEditable *editable = GTK_EDITABLE (gobject);
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if (check_for_selection_change (self, editable))
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g_signal_emit_by_name (self, "text-selection-changed");
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// The entry cursor position has moved so generate the signal
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g_signal_emit_by_name (self, "text-caret-moved",
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gtk_editable_get_position (editable));
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}
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static void
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on_selection_bound_changed (GObject *gobject,
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GParamSpec *pspec,
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gpointer data)
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{
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GtkPasswordEntryAccessible *self = data;
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GtkEditable *editable = GTK_EDITABLE (gobject);
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if (check_for_selection_change (self, editable))
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g_signal_emit_by_name (self, "text-selection-changed");
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}
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static void
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insert_text_cb (GtkEditable *editable,
|
|
char *new_text,
|
|
int new_text_length,
|
|
int *position,
|
|
GtkPasswordEntryAccessible *self)
|
|
{
|
|
int length;
|
|
|
|
if (new_text_length == 0)
|
|
return;
|
|
|
|
length = g_utf8_strlen (new_text, new_text_length);
|
|
|
|
g_signal_emit_by_name (self,
|
|
"text-changed::insert",
|
|
*position - length,
|
|
length);
|
|
}
|
|
|
|
static void
|
|
delete_text_cb (GtkEditable *editable,
|
|
int start,
|
|
int end,
|
|
GtkPasswordEntryAccessible *self)
|
|
{
|
|
GtkText *text;
|
|
|
|
text = get_text_widget (GTK_ACCESSIBLE (self));
|
|
if (text == NULL)
|
|
return;
|
|
|
|
if (end < 0)
|
|
{
|
|
char *contents;
|
|
|
|
contents = gtk_text_get_display_text (text, 0, -1);
|
|
end = g_utf8_strlen (contents, -1);
|
|
|
|
g_free (contents);
|
|
}
|
|
|
|
if (end == start)
|
|
return;
|
|
|
|
g_signal_emit_by_name (self,
|
|
"text-changed::delete",
|
|
start,
|
|
end - start);
|
|
}
|
|
|
|
static void
|
|
gtk_password_entry_accessible_initialize (AtkObject *atk_object,
|
|
gpointer data)
|
|
{
|
|
GtkPasswordEntryAccessible *self = GTK_PASSWORD_ENTRY_ACCESSIBLE (atk_object);
|
|
GtkEditable *editable = data;
|
|
GtkWidget *widget = data;
|
|
int start_pos, end_pos;
|
|
|
|
gtk_editable_get_selection_bounds (editable, &start_pos, &end_pos);
|
|
self->cursor_position = end_pos;
|
|
self->selection_bound = start_pos;
|
|
|
|
/* Set up signal callbacks */
|
|
g_signal_connect_after (widget, "insert-text", G_CALLBACK (insert_text_cb), self);
|
|
g_signal_connect (widget, "delete-text", G_CALLBACK (delete_text_cb), self);
|
|
g_signal_connect (widget, "notify::cursor-position",
|
|
G_CALLBACK (on_cursor_position_changed), self);
|
|
g_signal_connect (widget, "notify::selection-bound",
|
|
G_CALLBACK (on_selection_bound_changed), self);
|
|
}
|
|
|
|
static void
|
|
gtk_password_entry_accessible_class_init (GtkPasswordEntryAccessibleClass *klass)
|
|
{
|
|
AtkObjectClass *atk_object_class = ATK_OBJECT_CLASS (klass);
|
|
|
|
atk_object_class->initialize = gtk_password_entry_accessible_initialize;
|
|
atk_object_class->get_attributes = gtk_password_entry_accessible_get_attributes;
|
|
}
|
|
|
|
static void
|
|
gtk_password_entry_accessible_init (GtkPasswordEntryAccessible *self)
|
|
{
|
|
AtkObject *atk_obj = ATK_OBJECT (self);
|
|
|
|
atk_obj->role = ATK_ROLE_PASSWORD_TEXT;
|
|
atk_object_set_name (atk_obj, _("Password"));
|
|
}
|
|
|
|
void
|
|
gtk_password_entry_accessible_update_visibility (GtkPasswordEntryAccessible *self)
|
|
{
|
|
GtkText *text = get_text_widget (GTK_ACCESSIBLE (self));
|
|
|
|
if (text == NULL)
|
|
return;
|
|
|
|
gboolean visibility = gtk_text_get_visibility (text);
|
|
AtkRole role = visibility ? ATK_ROLE_TEXT : ATK_ROLE_PASSWORD_TEXT;
|
|
atk_object_set_role (ATK_OBJECT (self), role);
|
|
}
|