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[gnome-control-center] keyboard: Move row code to CcKeyboardShortcutRow

commit dc02c803c20390c0cf71ac83a74c154c157df628
Author: Ian Douglas Scott <idscott system76 com>
Date:   Thu Aug 6 15:50:34 2020 -0700

    keyboard: Move row code to CcKeyboardShortcutRow
    
    This adds a widget called `CcKeyboardShortcutRow`, sub-classing
    `GtkListBoxRow`, to handle a shortcut row. This makes the implementation
    a bit tidier, rather than handling it all in `CcKeyboardPanel`, and
    allows the widgets that compose the row to be laid out in xml.
    
    This is a prerequisite for moving the shortcuts to a new dialog.

 panels/keyboard/cc-keyboard-panel.c         | 197 ++++++----------------------
 panels/keyboard/cc-keyboard-shortcut-row.c  | 139 ++++++++++++++++++++
 panels/keyboard/cc-keyboard-shortcut-row.h  |  37 ++++++
 panels/keyboard/cc-keyboard-shortcut-row.ui |  59 +++++++++
 panels/keyboard/keyboard.gresource.xml      |   1 +
 panels/keyboard/meson.build                 |   1 +
 6 files changed, 278 insertions(+), 156 deletions(-)
---
diff --git a/panels/keyboard/cc-keyboard-panel.c b/panels/keyboard/cc-keyboard-panel.c
index f4d8d7c2c..ac3d149d5 100644
--- a/panels/keyboard/cc-keyboard-panel.c
+++ b/panels/keyboard/cc-keyboard-panel.c
@@ -23,6 +23,7 @@
 #include <glib/gi18n.h>
 
 #include "cc-alt-chars-key-dialog.h"
+#include "cc-keyboard-shortcut-row.h"
 #include "cc-keyboard-item.h"
 #include "cc-keyboard-manager.h"
 #include "cc-keyboard-option.h"
@@ -124,46 +125,6 @@ row_data_free (RowData *data)
   g_free (data);
 }
 
-static gboolean
-transform_binding_to_accel (GBinding     *binding,
-                            const GValue *from_value,
-                            GValue       *to_value,
-                            gpointer      user_data)
-{
-  CcKeyboardItem *item;
-  CcKeyCombo combo;
-  gchar *accelerator;
-
-  item = CC_KEYBOARD_ITEM (g_binding_get_source (binding));
-  combo = cc_keyboard_item_get_primary_combo (item);
-
-  /* Embolden the label when the shortcut is modified */
-  if (!cc_keyboard_item_is_value_default (item))
-    {
-      g_autofree gchar *tmp = NULL;
-
-      tmp = convert_keysym_state_to_string (&combo);
-
-      accelerator = g_strdup_printf ("<b>%s</b>", tmp);
-    }
-  else
-    {
-      accelerator = convert_keysym_state_to_string (&combo);
-    }
-
-  g_value_take_string (to_value, accelerator);
-
-  return TRUE;
-}
-
-static void
-shortcut_modified_changed_cb (CcKeyboardItem *item,
-                              GParamSpec     *pspec,
-                              GtkWidget      *button)
-{
-  gtk_widget_set_child_visible (button, !cc_keyboard_item_is_value_default (item));
-}
-
 static void
 reset_all_shortcuts_cb (GtkWidget *widget,
                         gpointer   user_data)
@@ -228,108 +189,22 @@ reset_all_clicked_cb (CcKeyboardPanel *self)
   gtk_widget_destroy (dialog);
 }
 
-static void
-reset_shortcut_cb (GtkWidget      *reset_button,
-                   CcKeyboardItem *item)
-{
-  CcKeyboardPanel *self;
-
-  self = CC_KEYBOARD_PANEL (gtk_widget_get_ancestor (reset_button, CC_TYPE_KEYBOARD_PANEL));
-
-  cc_keyboard_manager_reset_shortcut (self->manager, item);
-}
-
 static void
 add_item (CcKeyboardPanel *self,
           CcKeyboardItem  *item,
           const gchar     *section_id,
           const gchar     *section_title)
 {
-  GtkWidget *row, *box, *label, *reset_button;
-
-  /* Horizontal box */
-  box = g_object_new (GTK_TYPE_BOX,
-                      "orientation", GTK_ORIENTATION_HORIZONTAL,
-                      "spacing", 18,
-                      "margin-start", 6,
-                      "margin-end", 6,
-                      "margin-bottom", 4,
-                      "margin-top", 4,
-                      NULL);
-  gtk_widget_show (box);
-
-  /* Shortcut title */
-  label = gtk_label_new (cc_keyboard_item_get_description (item));
-  gtk_widget_show (label);
-  gtk_label_set_xalign (GTK_LABEL (label), 0.0);
-  gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
-  gtk_label_set_line_wrap_mode (GTK_LABEL (label), PANGO_WRAP_WORD_CHAR);
-  gtk_widget_set_hexpand (label, TRUE);
-
-  g_object_bind_property (item,
-                          "description",
-                          label,
-                          "label",
-                          G_BINDING_DEFAULT);
-
-  gtk_container_add (GTK_CONTAINER (box), label);
-
-  /* Shortcut accelerator */
-  label = gtk_label_new ("");
-  gtk_widget_show (label);
-  gtk_label_set_xalign (GTK_LABEL (label), 0.0);
-  gtk_label_set_use_markup (GTK_LABEL (label), TRUE);
-
-  gtk_size_group_add_widget (self->accelerator_sizegroup, label);
-
-  g_object_bind_property_full (item,
-                               "key-combos",
-                               label,
-                               "label",
-                              G_BINDING_SYNC_CREATE,
-                               transform_binding_to_accel,
-                               NULL, NULL, NULL);
-
-  gtk_container_add (GTK_CONTAINER (box), label);
-
-  gtk_style_context_add_class (gtk_widget_get_style_context (label), "dim-label");
-
-  /* Reset shortcut button */
-  reset_button = gtk_button_new_from_icon_name ("edit-clear-symbolic", GTK_ICON_SIZE_BUTTON);
-  gtk_widget_show (reset_button);
-  gtk_widget_set_valign (reset_button, GTK_ALIGN_CENTER);
-
-  gtk_button_set_relief (GTK_BUTTON (reset_button), GTK_RELIEF_NONE);
-  gtk_widget_set_child_visible (reset_button, !cc_keyboard_item_is_value_default (item));
-
-  gtk_widget_set_tooltip_text (reset_button, _("Reset the shortcut to its default value"));
-
-  gtk_container_add (GTK_CONTAINER (box), reset_button);
-
-  gtk_style_context_add_class (gtk_widget_get_style_context (reset_button), "flat");
-  gtk_style_context_add_class (gtk_widget_get_style_context (reset_button), "circular");
-  gtk_style_context_add_class (gtk_widget_get_style_context (reset_button), "reset-shortcut-button");
-
-  g_signal_connect_object (item,
-                           "notify::is-value-default",
-                           G_CALLBACK (shortcut_modified_changed_cb),
-                           reset_button, 0);
-
-  g_signal_connect_object (reset_button,
-                           "clicked",
-                           G_CALLBACK (reset_shortcut_cb),
-                           item, 0);
-
-  /* The row */
-  row = gtk_list_box_row_new ();
-  gtk_widget_show (row);
-  gtk_container_add (GTK_CONTAINER (row), box);
+  GtkWidget *row;
 
+  row = GTK_WIDGET(cc_keyboard_shortcut_row_new(item,
+                                               self->manager,
+                                               CC_KEYBOARD_SHORTCUT_EDITOR (self->shortcut_editor),
+                                               self->accelerator_sizegroup));
   g_object_set_data_full (G_OBJECT (row),
                           "data",
                           row_data_new (item, section_id, section_title),
                           (GDestroyNotify) row_data_free);
-
   gtk_container_add (GTK_CONTAINER (self->shortcuts_listbox), row);
 }
 
@@ -417,43 +292,53 @@ static gboolean
 search_match_shortcut (CcKeyboardItem *item,
                        const gchar    *search)
 {
-  CcKeyCombo combo = cc_keyboard_item_get_primary_combo (item);
   GStrv shortcut_tokens, search_tokens;
   g_autofree gchar *normalized_accel = NULL;
   g_autofree gchar *accel = NULL;
   gboolean match;
   guint i;
+  GList *key_combos, *l;
+  CcKeyCombo *combo;
 
-  if (is_empty_binding (&combo))
-    return FALSE;
+  key_combos = cc_keyboard_item_get_key_combos (item);
+  for (l = key_combos; l != NULL; l = l->next)
+    {
+      combo = l->data;
 
-  match = TRUE;
-  accel = convert_keysym_state_to_string (&combo);
-  normalized_accel = cc_util_normalize_casefold_and_unaccent (accel);
+      if (is_empty_binding (combo))
+        continue;
 
-  shortcut_tokens = g_strsplit_set (normalized_accel, SHORTCUT_DELIMITERS, -1);
-  search_tokens = g_strsplit_set (search, SHORTCUT_DELIMITERS, -1);
+      match = TRUE;
+      accel = convert_keysym_state_to_string (combo);
+      normalized_accel = cc_util_normalize_casefold_and_unaccent (accel);
 
-  for (i = 0; search_tokens[i] != NULL; i++)
-    {
-      const gchar *token;
+      shortcut_tokens = g_strsplit_set (normalized_accel, SHORTCUT_DELIMITERS, -1);
+      search_tokens = g_strsplit_set (search, SHORTCUT_DELIMITERS, -1);
 
-      /* Strip leading and trailing whitespaces */
-      token = g_strstrip (search_tokens[i]);
+      for (i = 0; search_tokens[i] != NULL; i++)
+        {
+          const gchar *token;
 
-      if (g_utf8_strlen (token, -1) == 0)
-        continue;
+          /* Strip leading and trailing whitespaces */
+          token = g_strstrip (search_tokens[i]);
 
-      match = match && strv_contains_prefix_or_match (shortcut_tokens, token);
+          if (g_utf8_strlen (token, -1) == 0)
+            continue;
 
-      if (!match)
-        break;
-    }
+          match = match && strv_contains_prefix_or_match (shortcut_tokens, token);
 
-  g_strfreev (shortcut_tokens);
-  g_strfreev (search_tokens);
+          if (!match)
+            break;
+        }
+
+      g_strfreev (shortcut_tokens);
+      g_strfreev (search_tokens);
+
+      if (match)
+        return TRUE;
+    }
 
-  return match;
+  return FALSE;
 }
 
 static gint
@@ -803,6 +688,9 @@ cc_keyboard_panel_init (CcKeyboardPanel *self)
   /* Shortcut manager */
   self->manager = cc_keyboard_manager_new ();
 
+  /* Shortcut editor dialog */
+  self->shortcut_editor = cc_keyboard_shortcut_editor_new (self->manager);
+
   /* Use a sizegroup to make the accelerator labels the same width */
   self->accelerator_sizegroup = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
 
@@ -820,9 +708,6 @@ cc_keyboard_panel_init (CcKeyboardPanel *self)
 
   cc_keyboard_manager_load_shortcuts (self->manager);
 
-  /* Shortcut editor dialog */
-  self->shortcut_editor = cc_keyboard_shortcut_editor_new (self->manager);
-
   /* Setup the shortcuts shortcuts_listbox */
   gtk_list_box_set_sort_func (GTK_LIST_BOX (self->shortcuts_listbox),
                               sort_function,
diff --git a/panels/keyboard/cc-keyboard-shortcut-row.c b/panels/keyboard/cc-keyboard-shortcut-row.c
new file mode 100644
index 000000000..6bb91d3ca
--- /dev/null
+++ b/panels/keyboard/cc-keyboard-shortcut-row.c
@@ -0,0 +1,139 @@
+/* cc-keyboard-shortcut-row.c
+ *
+ * Copyright (C) 2020 System76, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include <glib/gi18n.h>
+#include "cc-keyboard-shortcut-row.h"
+#include "keyboard-shortcuts.h"
+
+struct _CcKeyboardShortcutRow
+{
+  GtkListBoxRow             parent_instance;
+
+  GtkLabel                 *accelerator_label;
+  GtkLabel                 *description_label;
+  GtkButton                *reset_button;
+
+  CcKeyboardItem           *item;
+  CcKeyboardManager        *manager;
+  CcKeyboardShortcutEditor *shortcut_editor;
+};
+
+G_DEFINE_TYPE (CcKeyboardShortcutRow, cc_keyboard_shortcut_row, GTK_TYPE_LIST_BOX_ROW)
+
+static void
+reset_shortcut_cb (CcKeyboardShortcutRow *self)
+{
+  cc_keyboard_manager_reset_shortcut (self->manager, self->item);
+}
+
+static void
+cc_keyboard_shortcut_row_class_init (CcKeyboardShortcutRowClass *klass)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  gtk_widget_class_set_template_from_resource (widget_class, 
"/org/gnome/control-center/keyboard/cc-keyboard-shortcut-row.ui");
+
+  gtk_widget_class_bind_template_child (widget_class, CcKeyboardShortcutRow, description_label);
+  gtk_widget_class_bind_template_child (widget_class, CcKeyboardShortcutRow, accelerator_label);
+  gtk_widget_class_bind_template_child (widget_class, CcKeyboardShortcutRow, reset_button);
+
+  gtk_widget_class_bind_template_callback (widget_class, reset_shortcut_cb);
+}
+
+static void
+cc_keyboard_shortcut_row_init (CcKeyboardShortcutRow *self)
+{
+  gtk_widget_init_template (GTK_WIDGET (self));
+}
+
+static void
+shortcut_modified_changed_cb (CcKeyboardShortcutRow *self)
+{
+  gtk_widget_set_child_visible (GTK_WIDGET (self->reset_button),
+                               !cc_keyboard_item_is_value_default (self->item));
+}
+
+static gboolean
+transform_binding_to_accel (GBinding     *binding,
+                            const GValue *from_value,
+                            GValue       *to_value,
+                            gpointer      user_data)
+{
+  CcKeyboardItem *item;
+  CcKeyCombo combo;
+  gchar *accelerator;
+
+  item = CC_KEYBOARD_ITEM (g_binding_get_source (binding));
+  combo = cc_keyboard_item_get_primary_combo (item);
+
+  /* Embolden the label when the shortcut is modified */
+  if (!cc_keyboard_item_is_value_default (item))
+    {
+      g_autofree gchar *tmp = NULL;
+
+      tmp = convert_keysym_state_to_string (&combo);
+
+      accelerator = g_strdup_printf ("<b>%s</b>", tmp);
+    }
+  else
+    {
+      accelerator = convert_keysym_state_to_string (&combo);
+    }
+
+  g_value_take_string (to_value, accelerator);
+
+  return TRUE;
+}
+
+CcKeyboardShortcutRow *
+cc_keyboard_shortcut_row_new (CcKeyboardItem *item,
+                              CcKeyboardManager *manager,
+                              CcKeyboardShortcutEditor *shortcut_editor,
+                             GtkSizeGroup *size_group)
+{
+  CcKeyboardShortcutRow *self;
+
+  self = g_object_new (CC_TYPE_KEYBOARD_SHORTCUT_ROW, NULL);
+  self->item = item;
+  self->manager = manager;
+  self->shortcut_editor = shortcut_editor;
+
+  gtk_label_set_text (self->description_label, cc_keyboard_item_get_description (item));
+
+  g_object_bind_property_full (item,
+                               "key-combos",
+                               self->accelerator_label,
+                               "label",
+                              G_BINDING_SYNC_CREATE,
+                               transform_binding_to_accel,
+                               NULL, NULL, NULL);
+
+  gtk_widget_set_child_visible (GTK_WIDGET (self->reset_button),
+                               !cc_keyboard_item_is_value_default (item));
+  g_signal_connect_object (item,
+                           "notify::key-combos",
+                           G_CALLBACK (shortcut_modified_changed_cb),
+                           self, G_CONNECT_SWAPPED);
+
+  gtk_size_group_add_widget(size_group,
+                           GTK_WIDGET (self->accelerator_label));
+
+  return self;
+}
diff --git a/panels/keyboard/cc-keyboard-shortcut-row.h b/panels/keyboard/cc-keyboard-shortcut-row.h
new file mode 100644
index 000000000..d11143f73
--- /dev/null
+++ b/panels/keyboard/cc-keyboard-shortcut-row.h
@@ -0,0 +1,37 @@
+/* cc-keyboard-shortcut-row.h
+ *
+ * Copyright (C) 2020 System76, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#pragma once
+
+#include <gtk/gtk.h>
+#include "cc-keyboard-item.h"
+#include "cc-keyboard-manager.h"
+#include "cc-keyboard-shortcut-editor.h"
+
+G_BEGIN_DECLS
+
+#define CC_TYPE_KEYBOARD_SHORTCUT_ROW (cc_keyboard_shortcut_row_get_type())
+
+G_DECLARE_FINAL_TYPE (CcKeyboardShortcutRow, cc_keyboard_shortcut_row, CC, KEYBOARD_SHORTCUT_ROW, 
GtkListBoxRow)
+
+
+CcKeyboardShortcutRow *cc_keyboard_shortcut_row_new (CcKeyboardItem*, CcKeyboardManager*, 
CcKeyboardShortcutEditor*, GtkSizeGroup*);
+
+G_END_DECLS
diff --git a/panels/keyboard/cc-keyboard-shortcut-row.ui b/panels/keyboard/cc-keyboard-shortcut-row.ui
new file mode 100644
index 000000000..87a52d77a
--- /dev/null
+++ b/panels/keyboard/cc-keyboard-shortcut-row.ui
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <!-- interface-requires gtk+ 3.0 -->
+  <template class="CcKeyboardShortcutRow" parent="GtkListBoxRow">
+    <property name="visible">True</property>
+    <property name="selectable">False</property>
+    <property name="activatable">True</property>
+    <child>
+      <object class="GtkBox">
+        <property name="visible">True</property>
+        <property name="spacing">18</property>
+        <property name="margin-start">6</property>
+        <property name="margin-end">6</property>
+        <property name="margin-bottom">4</property>
+        <property name="margin-top">4</property>
+        <child>
+          <object class="GtkLabel" id="description_label">
+            <property name="visible">True</property>
+            <property name="xalign">0.0</property>
+           <property name="wrap">True</property>
+           <property name="wrap-mode">word-char</property>
+            <property name="hexpand">True</property>
+         </object>
+        </child>
+        <child>
+          <object class="GtkLabel" id="accelerator_label">
+            <property name="visible">True</property>
+            <property name="xalign">0.0</property>
+            <property name="use-markup">True</property>
+            <style>
+              <class name="dim-label" />
+           </style>
+         </object>
+        </child>
+        <child>
+          <object class="GtkButton" id="reset_button">
+            <property name="visible">True</property>
+            <property name="valign">center</property>
+            <property name="relief">none</property>
+           <property name="tooltip-text" translatable="yes">Reset the shortcut to its default 
value</property>
+           <child>
+              <object class="GtkImage">
+               <property name="visible">True</property>
+               <property name="icon-name">edit-clear-symbolic</property>
+               <property name="icon-size">1</property>
+             </object>
+           </child>
+           <style>
+              <class name="flat" />
+              <class name="circular" />
+              <class name="reset-shortcut-button" />
+           </style>
+           <signal name="clicked" handler="reset_shortcut_cb" swapped="true"/>
+         </object>
+        </child>
+      </object>
+    </child>
+  </template>
+</interface>
diff --git a/panels/keyboard/keyboard.gresource.xml b/panels/keyboard/keyboard.gresource.xml
index 0283dae2a..7fe8bf8dc 100644
--- a/panels/keyboard/keyboard.gresource.xml
+++ b/panels/keyboard/keyboard.gresource.xml
@@ -3,6 +3,7 @@
   <gresource prefix="/org/gnome/control-center/keyboard">
     <file preprocess="xml-stripblanks">enter-keyboard-shortcut.svg</file>
     <file preprocess="xml-stripblanks">cc-alt-chars-key-dialog.ui</file>
+    <file preprocess="xml-stripblanks">cc-keyboard-shortcut-row.ui</file>
     <file preprocess="xml-stripblanks">cc-keyboard-panel.ui</file>
     <file preprocess="xml-stripblanks">cc-keyboard-shortcut-editor.ui</file>
   </gresource>
diff --git a/panels/keyboard/meson.build b/panels/keyboard/meson.build
index 2f61ed071..63729f57c 100644
--- a/panels/keyboard/meson.build
+++ b/panels/keyboard/meson.build
@@ -57,6 +57,7 @@ endforeach
 
 sources = files(
   'cc-alt-chars-key-dialog.c',
+  'cc-keyboard-shortcut-row.c',
   'cc-keyboard-panel.c',
   'cc-keyboard-item.c',
   'cc-keyboard-manager.c',
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