[geary/mjog/1193-conversation-buttons-resize-race: 5/11] client: Rename main window leafets and their children

[Michael Gratton <mjog src gnome org>]

commit 1121fe91df2ebefbf4f9ff704839b45012575b73
Author: Michael Gratton <mike vee net>
Date:   Sun Apr 11 10:39:56 2021 +1000

    client: Rename main window leafets and their children
    
    Make them a bit easier to reason about.

 .../application/application-main-window.vala       | 61 +++++++++++++---------
 ui/application-main-window.ui                      | 18 +++----
 2 files changed, 46 insertions(+), 33 deletions(-)
---
diff --git a/src/client/application/application-main-window.vala 
b/src/client/application/application-main-window.vala
index d124c583d..15e882224 100644
--- a/src/client/application/application-main-window.vala
+++ b/src/client/application/application-main-window.vala
@@ -71,10 +71,17 @@ public class Application.MainWindow :
         { ACTION_ZOOM, on_zoom, "s" },
     };
 
+    // Handy leaflet children names
+    private const string INNER_LEAFLET = "inner_leaflet";
+    private const string FOLDER_LIST = "folder_list";
+    private const string CONVERSATION_LIST = "conversation_list";
+    private const string CONVERSATION_VIEWER = "conversation_viewer";
+
     private const int STATUS_BAR_HEIGHT = 18;
+
     private const int UPDATE_UI_INTERVAL = 60;
-    private const int MIN_CONVERSATION_COUNT = 50;
 
+    private const int MIN_CONVERSATION_COUNT = 50;
 
     static construct {
         // Set up default keybindings
@@ -339,8 +346,12 @@ public class Application.MainWindow :
 
 
     [GtkChild] private unowned Gtk.Box main_layout;
-    [GtkChild] private unowned Hdy.Leaflet main_leaflet;
-    [GtkChild] private unowned Hdy.Leaflet conversations_leaflet;
+
+    // Folds the inner leaftlet and conversation viewer
+    [GtkChild] private unowned Hdy.Leaflet outer_leaflet;
+
+    // Folds the folder list and the conversation list
+    [GtkChild] private unowned Hdy.Leaflet inner_leaflet;
 
     [GtkChild] private unowned Gtk.Box folder_box;
     [GtkChild] private unowned Gtk.ScrolledWindow folder_list_scrolled;
@@ -892,11 +903,11 @@ public class Application.MainWindow :
 
     /** Shows the appopriate window menu, if any. */
     public void show_window_menu() {
-        if (this.main_leaflet.folded) {
-            this.main_leaflet.navigate(Hdy.NavigationDirection.BACK);
+        if (this.outer_leaflet.folded) {
+            this.outer_leaflet.navigate(Hdy.NavigationDirection.BACK);
         }
-        if (this.conversations_leaflet.folded) {
-            this.conversations_leaflet.navigate(Hdy.NavigationDirection.BACK);
+        if (this.inner_leaflet.folded) {
+            this.inner_leaflet.navigate(Hdy.NavigationDirection.BACK);
         }
         this.main_toolbar.show_main_menu();
     }
@@ -948,7 +959,7 @@ public class Application.MainWindow :
                 this.conversation_viewer.do_compose(composer);
             }
             // Show the correct leaflet
-            this.main_leaflet.set_visible_child_name("conversation");
+            this.outer_leaflet.set_visible_child_name(CONVERSATION_VIEWER);
         }
     }
 
@@ -1857,17 +1868,17 @@ public class Application.MainWindow :
     private void focus_next_pane() {
         var focus = get_focus();
 
-        if (main_leaflet.folded) {
-            if (main_leaflet.visible_child_name == "conversations") {
-                if (conversations_leaflet.folded &&
-                    conversations_leaflet.visible_child_name == "folder" ||
+        if (this.outer_leaflet.folded) {
+            if (this.outer_leaflet.visible_child_name == INNER_LEAFLET) {
+                if (this.inner_leaflet.folded &&
+                    this.inner_leaflet.visible_child_name == FOLDER_LIST ||
                     focus == this.folder_list) {
-                    conversations_leaflet.navigate(Hdy.NavigationDirection.FORWARD);
+                    this.inner_leaflet.navigate(Hdy.NavigationDirection.FORWARD);
                     focus = this.conversation_list_view;
                 } else {
                     if (this.conversation_list_view.get_selected().size == 1 &&
                         this.selected_folder.properties.email_total > 0) {
-                        main_leaflet.navigate(Hdy.NavigationDirection.FORWARD);
+                        this.outer_leaflet.navigate(Hdy.NavigationDirection.FORWARD);
                         focus = this.conversation_viewer.visible_child;
                     }
                 }
@@ -1895,11 +1906,11 @@ public class Application.MainWindow :
     private void focus_previous_pane() {
         var focus = get_focus();
 
-        if (main_leaflet.folded) {
-            if (main_leaflet.visible_child_name == "conversations") {
-                if (conversations_leaflet.folded) {
-                    if (conversations_leaflet.visible_child_name == "conversations") {
-                        conversations_leaflet.navigate(Hdy.NavigationDirection.BACK);
+        if (this.outer_leaflet.folded) {
+            if (this.outer_leaflet.visible_child_name == INNER_LEAFLET) {
+                if (this.inner_leaflet.folded) {
+                    if (this.inner_leaflet.visible_child_name == CONVERSATION_LIST) {
+                        this.inner_leaflet.navigate(Hdy.NavigationDirection.BACK);
                         focus = this.folder_list;
                     }
                 } else {
@@ -1909,7 +1920,7 @@ public class Application.MainWindow :
                         focus = this.conversation_list_view;
                 }
             } else {
-                main_leaflet.navigate(Hdy.NavigationDirection.BACK);
+                this.outer_leaflet.navigate(Hdy.NavigationDirection.BACK);
                 focus = this.conversation_list_view;
             }
         } else if (focus != null) {
@@ -2013,11 +2024,12 @@ public class Application.MainWindow :
     }
 
     [GtkCallback]
-    private void on_main_leaflet_visible_child_changed() {
-        if (main_leaflet.child_transition_running)
+    private void on_outer_leaflet_visible_child_changed() {
+        if (this.outer_leaflet.child_transition_running)
             return;
 
-        if (main_leaflet.visible_child_name == "conversations" && main_leaflet.folded)
+        if (this.outer_leaflet.visible_child_name == INNER_LEAFLET &&
+            this.outer_leaflet.folded)
             if (this.conversation_viewer.current_composer != null) {
                 this.conversation_viewer.current_composer.activate_close_action();
             }
@@ -2230,8 +2242,9 @@ public class Application.MainWindow :
 
     private void on_conversation_activated(Geary.App.Conversation activated, bool single) {
         if (single) {
-            if (main_leaflet.folded)
+            if (this.outer_leaflet.folded) {
                 focus_next_pane();
+            }
         } else if (this.selected_folder != null) {
             if (this.selected_folder.used_as != DRAFTS) {
                 this.application.new_window.begin(
diff --git a/ui/application-main-window.ui b/ui/application-main-window.ui
index f9c35b654..a6520364c 100644
--- a/ui/application-main-window.ui
+++ b/ui/application-main-window.ui
@@ -18,14 +18,14 @@
             <property name="visible">True</property>
             <property name="orientation">vertical</property>
             <child>
-              <object class="HdyLeaflet" id="main_leaflet">
+              <object class="HdyLeaflet" id="outer_leaflet">
                 <property name="visible">True</property>
                 <property name="can_swipe_back">True</property>
                 <property name="transition_type">over</property>
-                <signal name="notify::visible-child" handler="on_main_leaflet_visible_child_changed" 
swapped="no"/>
-                <signal name="notify::child-transition-running" 
handler="on_main_leaflet_visible_child_changed" swapped="no"/>
+                <signal name="notify::visible-child" handler="on_outer_leaflet_visible_child_changed" 
swapped="no"/>
+                <signal name="notify::child-transition-running" 
handler="on_outer_leaflet_visible_child_changed" swapped="no"/>
                 <child>
-                  <object class="HdyLeaflet" id="conversations_leaflet">
+                  <object class="HdyLeaflet" id="inner_leaflet">
                     <property name="visible">True</property>
                     <property name="hexpand_set">True</property>
                     <property name="can_swipe_back">True</property>
@@ -57,7 +57,7 @@
                         </child>
                       </object>
                       <packing>
-                        <property name="name">folder</property>
+                        <property name="name">folder_list</property>
                       </packing>
                     </child>
                     <child>
@@ -122,12 +122,12 @@
                         </child>
                       </object>
                       <packing>
-                        <property name="name">conversations</property>
+                        <property name="name">conversation_list</property>
                       </packing>
                     </child>
                   </object>
                   <packing>
-                    <property name="name">conversations</property>
+                    <property name="name">inner_leaflet</property>
                   </packing>
                 </child>
                 <child>
@@ -165,7 +165,7 @@
                     </child>
                   </object>
                   <packing>
-                    <property name="name">conversation</property>
+                    <property name="name">conversation_viewer</property>
                   </packing>
                 </child>
               </object>
@@ -227,7 +227,7 @@
   </object>
   <object class="HdySwipeGroup" id="conversation_swipe_group">
     <swipeables>
-      <swipeable name="main_leaflet"/>
+      <swipeable name="outer_leaflet"/>
     </swipeables>
   </object>
 </interface>