[nautilus/wip/coreyberla/app-picker-followups] app-chooser: Improve layout

[António Fernandes <antoniof src gnome org>]

commit 89ee717da5f34e0318323a7efafdb9ade0f7cca0
Author: António Fernandes <antoniof gnome org>
Date:   Sat Aug 6 20:47:16 2022 +0100

    app-chooser: Improve layout
    
    On the verge of UI freeze, spliting this among previous commits is not
    possible, unfortunately. So, this packs a few changes at once:
    
      * Avoid double scrollbars. The GtkScrolledWindow is preserved for
        future use when we get rid of GtkAppChooserWidger, but otherwise
        it doesn't scroll.
      * Add a separator above default switch row.
      * Make the switch row and make the whole row clickable.
      * Fine-tune margins.

 src/resources/ui/nautilus-app-chooser.ui | 139 +++++++++++++++++--------------
 1 file changed, 77 insertions(+), 62 deletions(-)
---
diff --git a/src/resources/ui/nautilus-app-chooser.ui b/src/resources/ui/nautilus-app-chooser.ui
index d70e62f83..dd355341d 100644
--- a/src/resources/ui/nautilus-app-chooser.ui
+++ b/src/resources/ui/nautilus-app-chooser.ui
@@ -11,15 +11,6 @@
     <child internal-child="content_area">
       <object class="GtkBox" id="content_area">
         <property name="orientation">vertical</property>
-        <child>
-          <object class="GtkLabel" id="label_description">
-            <property name="margin-top">18</property>
-            <property name="wrap">True</property>
-            <property name="wrap-mode">PANGO_WRAP_WORD_CHAR</property>
-            <property name="halign">center</property>
-            <property name="label" translatable="yes">Choose an application to open the selected 
files.</property>
-          </object>
-        </child>
         <child>
           <object class="GtkStack">
             <property name="hexpand">True</property>
@@ -27,74 +18,98 @@
               <object class="GtkStackPage">
                 <property name="name">list</property>
                 <property name="child">
-                  <object class="GtkScrolledWindow">
-                    <property name="margin-top">18</property>
-                    <property name="margin-bottom">18</property>
-                    <property name="margin-start">18</property>
-                    <property name="margin-end">18</property>
-                    <property name="hscrollbar-policy">never</property>
-                    <property name="vexpand">true</property>
-                    <property name="child">
-                      <object class="AdwClamp">
+                  <object class="GtkBox">
+                    <property name="orientation">vertical</property>
+                    <child>
+                      <object class="GtkScrolledWindow">
+                        <property name="hscrollbar-policy">never</property>
+                        <property name="vscrollbar-policy">never</property>
+                        <property name="vexpand">true</property>
                         <style>
                           <class name="background"/>
                         </style>
                         <property name="child">
-                          <object class="GtkBox">
-                            <property name="orientation">vertical</property>
-                            <property name="spacing">12</property>
-                            <child>
-                              <object class="GtkBox" id="app_chooser_widget_box">
-                                <property name="margin-start">18</property>
-                                <property name="margin-end">18</property>
-                                <property name="vexpand">True</property>
+                          <object class="AdwClamp">
+                            <property name="margin-top">18</property>
+                            <property name="margin-bottom">18</property>
+                            <property name="margin-start">18</property>
+                            <property name="margin-end">18</property>
+                            <property name="child">
+                              <object class="GtkBox">
                                 <property name="orientation">vertical</property>
+                                <property name="spacing">12</property>
+                                <child>
+                                  <object class="GtkLabel" id="label_description">
+                                    <property name="wrap">True</property>
+                                    <property name="wrap-mode">PANGO_WRAP_WORD_CHAR</property>
+                                    <property name="justify">center</property>
+                                    <property name="label" translatable="yes">Choose an application to open 
the selected files.</property>
+                                  </object>
+                                </child>
+                                <child>
+                                  <object class="GtkBox" id="app_chooser_widget_box">
+                                    <property name="vexpand">True</property>
+                                  </object>
+                                </child>
                               </object>
-                            </child>
+                            </property>
                           </object>
                         </property>
                       </object>
-                    </property>
+                    </child>
+                    <child>
+                      <object class="GtkBox" id="set_default_box">
+                        <property name="orientation">vertical</property>
+                        <style>
+                          <class name="background"/>
+                        </style>
+                        <child>
+                          <object class="GtkSeparator"/>
+                        </child>
+                        <child>
+                          <object class="AdwActionRow" id="set_default_row">
+                            <property name="hexpand">true</property>
+                            <property name="selectable">false</property>
+                            <property name="activatable-widget">set_as_default_switch</property>
+                            <child type="prefix">
+                              <object class="GtkBox">
+                                <property name="orientation">vertical</property>
+                                <property name="spacing">3</property>
+                                <property name="hexpand">true</property>
+                                <property name="valign">center</property>
+                                <child>
+                                  <object class="GtkLabel">
+                                    <property name="label" translatable="yes">Always use for this file 
type</property>
+                                    <property name="halign">start</property>
+                                  </object>
+                                </child>
+                                <child>
+                                  <object class="GtkLabel" id="label_content_type_description">
+                                    <property name="halign">start</property>
+                                    <style>
+                                      <class name="caption"/>
+                                      <class name="dim-label"/>
+                                    </style>
+                                  </object>
+                                </child>
+                              </object>
+                            </child>
+                            <child>
+                              <object class="GtkSwitch" id="set_as_default_switch">
+                                <property name="halign">end</property>
+                                <property name="valign">center</property>
+                              </object>
+                            </child>
+                          </object>
+                        </child>
+                      </object>
+                    </child>
                   </object>
                 </property>
               </object>
             </child>
           </object>
         </child>
-        <child>
-          <object class="GtkBox" id="set_default_box">
-            <property name="margin-bottom">18</property>
-            <property name="margin-start">18</property>
-            <property name="margin-end">18</property>
-            <child>
-              <object class="GtkBox">
-                <property name="orientation">vertical</property>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="halign">start</property>
-                    <property name="hexpand">True</property>
-                    <property name="label" translatable="yes">Always use for this file type</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkLabel" id="label_content_type_description">
-                    <property name="halign">start</property>
-                    <style>
-                      <class name="dim-label"/>
-                      <class name="caption"/>
-                    </style>
-                  </object>
-                </child>
-              </object>
-            </child>
-            <child>
-              <object class="GtkSwitch" id="set_as_default_switch">
-                <property name="halign">end</property>
-                <property name="valign">center</property>
-              </object>
-            </child>
-          </object>
-        </child>
       </object>
     </child>
     <child type="action">