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[gtk/text: 11/26] Add GtkPasswordEntry

commit aea582b44cf2e0067cba10ee5a42a2314a3000c7
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Feb 16 22:21:57 2019 -0500

    Add GtkPasswordEntry
    
    This is a simple editable which hides the entered
    text and shows a caps-lock warning.

 docs/reference/gtk/gtk4-docs.xml     |   1 +
 docs/reference/gtk/gtk4-sections.txt |   9 ++
 docs/reference/gtk/gtk4.types.in     |   1 +
 gtk/gtk.h                            |   3 +-
 gtk/gtkpasswordentry.c               | 240 +++++++++++++++++++++++++++++++++++
 gtk/gtkpasswordentry.h               |  60 +++++++++
 gtk/meson.build                      |   2 +
 7 files changed, 315 insertions(+), 1 deletion(-)
---
diff --git a/docs/reference/gtk/gtk4-docs.xml b/docs/reference/gtk/gtk4-docs.xml
index 56d2b8a1a6..e8b9810359 100644
--- a/docs/reference/gtk/gtk4-docs.xml
+++ b/docs/reference/gtk/gtk4-docs.xml
@@ -143,6 +143,7 @@
       <xi:include href="xml/gtktext.xml" />
       <xi:include href="xml/gtkentry.xml" />
       <xi:include href="xml/gtkentrycompletion.xml" />
+      <xi:include href="xml/gtkpasswordentry.xml" />
       <xi:include href="xml/gtkscale.xml" />
       <xi:include href="xml/gtkspinbutton.xml" />
       <xi:include href="xml/gtksearchentry.xml" />
diff --git a/docs/reference/gtk/gtk4-sections.txt b/docs/reference/gtk/gtk4-sections.txt
index f1f7877fa4..d4925bd3d3 100644
--- a/docs/reference/gtk/gtk4-sections.txt
+++ b/docs/reference/gtk/gtk4-sections.txt
@@ -996,6 +996,15 @@ GtkEntryPrivate
 gtk_entry_get_type
 </SECTION>
 
+<SECTION>
+<FILE>gtkpasswordentry</FILE>
+<TITLE>GtkPasswordEntry</TITLE>
+GtkPasswordEntry
+gtk_password_entry_new
+<SUBSECTION Private>
+gtk_password_entry_get_type
+</SECTION>
+
 <SECTION>
 <FILE>gtkentrybuffer</FILE>
 <TITLE>GtkEntryBuffer</TITLE>
diff --git a/docs/reference/gtk/gtk4.types.in b/docs/reference/gtk/gtk4.types.in
index 5c7bc803f2..cede164bee 100644
--- a/docs/reference/gtk/gtk4.types.in
+++ b/docs/reference/gtk/gtk4.types.in
@@ -118,6 +118,7 @@ gtk_page_setup_get_type
 @DISABLE_ON_W32@gtk_page_setup_unix_dialog_get_type
 gtk_paned_get_type
 gtk_paper_size_get_type
+gtk_password_entry_get_type
 gtk_picture_get_type
 gtk_popover_get_type
 gtk_popover_menu_get_type
diff --git a/gtk/gtk.h b/gtk/gtk.h
index c500c8de74..34fff24a3f 100644
--- a/gtk/gtk.h
+++ b/gtk/gtk.h
@@ -159,8 +159,9 @@
 #include <gtk/gtkoverlay.h>
 #include <gtk/gtkpadcontroller.h>
 #include <gtk/gtkpagesetup.h>
-#include <gtk/gtkpapersize.h>
 #include <gtk/gtkpaned.h>
+#include <gtk/gtkpapersize.h>
+#include <gtk/gtkpasswordentry.h>
 #include <gtk/gtkpicture.h>
 #include <gtk/gtkpopover.h>
 #include <gtk/gtkpopovermenu.h>
diff --git a/gtk/gtkpasswordentry.c b/gtk/gtkpasswordentry.c
new file mode 100644
index 0000000000..03d14c9bd7
--- /dev/null
+++ b/gtk/gtkpasswordentry.c
@@ -0,0 +1,240 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2019 Red Hat, Inc.
+ *
+ * Authors:
+ * - Matthias Clasen <mclasen redhat com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * 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.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "gtkpasswordentry.h"
+
+#include "gtkaccessible.h"
+#include "gtkbindings.h"
+#include "gtktextprivate.h"
+#include "gtkeditableprivate.h"
+#include "gtkbox.h"
+#include "gtkimage.h"
+#include "gtkintl.h"
+#include "gtkmarshalers.h"
+#include "gtkstylecontext.h"
+#include "gtkeventcontrollerkey.h"
+
+/**
+ * SECTION:gtkpasswordhentry
+ * @Short_description: An entry for secrets
+ * @Title: GtkPasswordEntry
+ *
+ * #GtkPasswordEntry is entry that has been tailored for
+ * entering secrets.
+ */
+
+typedef struct {
+  GtkWidget *box;
+  GtkWidget *entry;
+  GtkWidget *icon;
+  GdkKeymap *keymap;
+} GtkPasswordEntryPrivate;
+
+static void gtk_password_entry_editable_init (GtkEditableInterface *iface);
+
+G_DEFINE_TYPE_WITH_CODE (GtkPasswordEntry, gtk_password_entry, GTK_TYPE_WIDGET,
+                         G_ADD_PRIVATE (GtkPasswordEntry)
+                         G_IMPLEMENT_INTERFACE (GTK_TYPE_EDITABLE, gtk_password_entry_editable_init))
+
+static void
+keymap_state_changed (GdkKeymap *keymap,
+                      GtkWidget *widget)
+{
+  GtkPasswordEntry *entry = GTK_PASSWORD_ENTRY (widget);
+  GtkPasswordEntryPrivate *priv = gtk_password_entry_get_instance_private (entry);
+
+  if (gtk_editable_get_editable (GTK_EDITABLE (entry)) &&
+      gtk_widget_has_focus (priv->entry) &&
+      gdk_keymap_get_caps_lock_state (priv->keymap))
+    gtk_widget_show (priv->icon);
+  else
+    gtk_widget_hide (priv->icon);
+}
+
+static void
+focus_changed (GtkWidget *widget)
+{
+  GtkPasswordEntry *entry = GTK_PASSWORD_ENTRY (widget);
+  GtkPasswordEntryPrivate *priv = gtk_password_entry_get_instance_private (entry);
+
+  if (priv->keymap)
+    keymap_state_changed (priv->keymap, widget);
+}
+
+static void
+gtk_password_entry_init (GtkPasswordEntry *entry)
+{
+  GtkPasswordEntryPrivate *priv = gtk_password_entry_get_instance_private (entry);
+  AtkObject *atk_obj;
+
+  gtk_widget_set_has_surface (GTK_WIDGET (entry), FALSE);
+
+  priv->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+  gtk_widget_set_parent (priv->box, GTK_WIDGET (entry));
+
+  priv->entry = gtk_text_new ();
+  gtk_text_set_visibility (GTK_TEXT (priv->entry), FALSE);
+  gtk_widget_set_hexpand (priv->entry, TRUE);
+  gtk_widget_set_vexpand (priv->entry, TRUE);
+  gtk_container_add (GTK_CONTAINER (priv->box), priv->entry);
+  gtk_editable_set_delegate (GTK_EDITABLE (entry), GTK_EDITABLE (priv->entry));
+  g_signal_connect_swapped (priv->entry, "notify::has-focus", G_CALLBACK (focus_changed), entry);
+
+  priv->icon = gtk_image_new_from_icon_name ("dialog-warning-symbolic");
+  gtk_widget_set_tooltip_text (priv->icon, _("Caps Lock is on"));
+  gtk_container_add (GTK_CONTAINER (priv->box), priv->icon);
+
+  atk_obj = gtk_widget_get_accessible (GTK_WIDGET (entry));
+  if (GTK_IS_ACCESSIBLE (atk_obj))
+    atk_object_set_name (atk_obj, _("Password"));
+
+  gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (entry)), I_("password"));
+}
+
+static void
+gtk_password_entry_realize (GtkWidget *widget)
+{
+  GtkPasswordEntry *entry = GTK_PASSWORD_ENTRY (widget);
+  GtkPasswordEntryPrivate *priv = gtk_password_entry_get_instance_private (entry);
+
+  GTK_WIDGET_CLASS (gtk_password_entry_parent_class)->realize (widget);
+
+  priv->keymap = gdk_display_get_keymap (gtk_widget_get_display (widget));
+  g_signal_connect (priv->keymap, "state-changed", G_CALLBACK (keymap_state_changed), entry);
+}
+
+static void
+gtk_password_entry_dispose (GObject *object)
+{
+  GtkPasswordEntry *entry = GTK_PASSWORD_ENTRY (object);
+  GtkPasswordEntryPrivate *priv = gtk_password_entry_get_instance_private (entry);
+
+  if (priv->keymap)
+    g_signal_handlers_disconnect_by_func (priv->keymap, keymap_state_changed, entry);
+
+  G_OBJECT_CLASS (gtk_password_entry_parent_class)->dispose (object);
+}
+
+static void
+gtk_password_entry_finalize (GObject *object)
+{
+  GtkPasswordEntry *entry = GTK_PASSWORD_ENTRY (object);
+  GtkPasswordEntryPrivate *priv = gtk_password_entry_get_instance_private (entry);
+
+  g_clear_pointer (&priv->box, gtk_widget_unparent);
+
+  G_OBJECT_CLASS (gtk_password_entry_parent_class)->finalize (object);
+}
+
+static void
+gtk_password_entry_set_property (GObject      *object,
+                                 guint         prop_id,
+                                 const GValue *value,
+                                 GParamSpec   *pspec)
+{
+  if (gtk_editable_delegate_set_property (object, prop_id, value, pspec))
+    return;
+
+  G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+}
+
+static void
+gtk_password_entry_get_property (GObject    *object,
+                                 guint       prop_id,
+                                 GValue     *value,
+                                 GParamSpec *pspec)
+{
+  if (gtk_editable_delegate_get_property (object, prop_id, value, pspec))
+    return;
+
+  G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+}
+
+static void
+gtk_password_entry_measure (GtkWidget      *widget,
+                            GtkOrientation  orientation,
+                            int             for_size,
+                            int            *minimum,
+                            int            *natural,
+                            int            *minimum_baseline,
+                            int            *natural_baseline)
+{
+  GtkPasswordEntry *entry = GTK_PASSWORD_ENTRY (widget);
+  GtkPasswordEntryPrivate *priv = gtk_password_entry_get_instance_private (entry);
+
+  gtk_widget_measure (priv->box, orientation, for_size,
+                      minimum, natural,
+                      minimum_baseline, natural_baseline);
+}
+
+static void
+gtk_password_entry_size_allocate (GtkWidget *widget,
+                                  int        width,
+                                  int        height,
+                                  int        baseline)
+{
+  GtkPasswordEntry *entry = GTK_PASSWORD_ENTRY (widget);
+  GtkPasswordEntryPrivate *priv = gtk_password_entry_get_instance_private (entry);
+
+  gtk_widget_size_allocate (priv->box,
+                            &(GtkAllocation) { 0, 0, width, height },
+                            baseline);
+}
+
+static void
+gtk_password_entry_class_init (GtkPasswordEntryClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  object_class->dispose = gtk_password_entry_dispose;
+  object_class->finalize = gtk_password_entry_finalize;
+  object_class->get_property = gtk_password_entry_get_property;
+  object_class->set_property = gtk_password_entry_set_property;
+
+  widget_class->realize = gtk_password_entry_realize;
+  widget_class->measure = gtk_password_entry_measure;
+  widget_class->size_allocate = gtk_password_entry_size_allocate;
+ 
+  gtk_editable_install_properties (object_class);
+
+  gtk_widget_class_set_css_name (widget_class, I_("entry"));
+}
+
+static void
+gtk_password_entry_editable_init (GtkEditableInterface *iface)
+{
+  gtk_editable_delegate_iface_init (iface);
+}
+
+/**
+ * gtk_password_entry_new:
+ *
+ * Creates a #GtkPasswordEntry.
+ *
+ * Returns: a new #GtkPasswordEntry
+ */
+GtkWidget *
+gtk_password_entry_new (void)
+{
+  return GTK_WIDGET (g_object_new (GTK_TYPE_PASSWORD_ENTRY, NULL));
+}
diff --git a/gtk/gtkpasswordentry.h b/gtk/gtkpasswordentry.h
new file mode 100644
index 0000000000..66de3ee961
--- /dev/null
+++ b/gtk/gtkpasswordentry.h
@@ -0,0 +1,60 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2019 Red Hat, Inc.
+ *
+ * Authors:
+ * - MAtthias Clasen <mclasen redhat com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * 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.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GTK_PASSWORD_ENTRY_H__
+#define __GTK_PASSWORD_ENTRY_H__
+
+#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk.h> can be included directly."
+#endif
+
+#include <gtk/gtkentry.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_PASSWORD_ENTRY                 (gtk_password_entry_get_type ())
+#define GTK_PASSWORD_ENTRY(obj)                 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_PASSWORD_ENTRY, 
GtkPasswordEntry))
+#define GTK_PASSWORD_ENTRY_CLASS(klass)         (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_PASSWORD_ENTRY, 
GtkPasswordEntryClass))
+#define GTK_IS_PASSWORD_ENTRY(obj)              (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_PASSWORD_ENTRY))
+#define GTK_IS_PASSWORD_ENTRY_CLASS(klass)      (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_PASSWORD_ENTRY))
+#define GTK_PASSWORD_ENTRY_GET_CLASS(obj)       (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_PASSWORD_ENTRY, 
GtkPasswordEntryClass))
+
+typedef struct _GtkPasswordEntry       GtkPasswordEntry;
+typedef struct _GtkPasswordEntryClass  GtkPasswordEntryClass;
+
+struct _GtkPasswordEntry
+{
+  GtkWidget parent;
+};
+
+struct _GtkPasswordEntryClass
+{
+  GtkWidgetClass parent_class;
+};
+
+GDK_AVAILABLE_IN_ALL
+GType           gtk_password_entry_get_type (void) G_GNUC_CONST;
+
+GDK_AVAILABLE_IN_ALL
+GtkWidget *     gtk_password_entry_new      (void);
+
+G_END_DECLS
+
+#endif /* __GTK_PASSWORD_ENTRY_H__ */
diff --git a/gtk/meson.build b/gtk/meson.build
index 3eefb1139a..2e6c813b4a 100644
--- a/gtk/meson.build
+++ b/gtk/meson.build
@@ -293,6 +293,7 @@ gtk_public_sources = files([
   'gtkpagesetup.c',
   'gtkpaned.c',
   'gtkpapersize.c',
+  'gtkpasswordentry.c',
   'gtkpicture.c',
   'gtkpopover.c',
   'gtkpopovermenu.c',
@@ -538,6 +539,7 @@ gtk_public_headers = files([
   'gtkpagesetup.h',
   'gtkpaned.h',
   'gtkpapersize.h',
+  'gtkpasswordentry.h',
   'gtkpicture.h',
   'gtkpopover.h',
   'gtkpopovermenu.h',
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