[geary/mjog/mail-merge-plugin] Application, Plugin: Make object conversion methods consistent.



commit cab388b5a66e1f99af2feabbf780165211e57153
Author: Michael Gratton <mike vee net>
Date:   Fri Jul 17 17:54:59 2020 +1000

    Application, Plugin: Make object conversion methods consistent.
    
    Publicly, get objects for a variant rather than from it since we're
    not actually getting the objects from the variant, just looking them
    up using the variant as an id.
    
    Internally, use `to_` rather than `get_` when converting between plugin
    and engine objects, since its typically just a cast or a lookup to do
    so.

 src/client/application/application-client.vala     |  6 ++---
 .../application-email-store-factory.vala           | 17 ++++++++-----
 .../application-folder-plugin-context.vala         |  8 +++---
 .../application-folder-store-factory.vala          | 16 ++++++------
 .../application-notification-plugin-context.vala   | 14 +++++------
 .../application/application-plugin-manager.vala    | 29 +++++++++++++++++-----
 .../plugin/email-templates/email-templates.vala    |  6 ++---
 .../plugin/folder-highlight/folder-highlight.vala  |  4 +--
 src/client/plugin/mail-merge/mail-merge.vala       |  6 ++---
 src/client/plugin/plugin-email-store.vala          |  4 +--
 src/client/plugin/plugin-email.vala                |  3 +++
 src/client/plugin/plugin-folder-store.vala         |  4 +--
 src/client/plugin/plugin-folder.vala               |  2 +-
 .../plugin/special-folders/special-folders.vala    |  4 +--
 14 files changed, 74 insertions(+), 49 deletions(-)
---
diff --git a/src/client/application/application-client.vala b/src/client/application/application-client.vala
index 75b82c80f..ff7b15b5b 100644
--- a/src/client/application/application-client.vala
+++ b/src/client/application/application-client.vala
@@ -614,9 +614,9 @@ public class Application.Client : Gtk.Application {
         MainWindow main = yield this.present();
         if (id != null) {
             EmailStoreFactory email = this.controller.plugins.globals.email;
-            AccountContext? context = email.get_account_from_variant(id);
+            AccountContext? context = email.get_account_for_variant(id);
             Geary.EmailIdentifier? email_id =
-                email.get_email_identifier_from_variant(id);
+                email.get_email_identifier_for_variant(id);
             if (context != null && email_id != null) {
                 // Determine what folders the email is in
                 Gee.MultiMap<Geary.EmailIdentifier,Geary.FolderPath>? folders = null;
@@ -694,7 +694,7 @@ public class Application.Client : Gtk.Application {
         MainWindow main = yield this.present();
         if (id != null) {
             Geary.Folder? folder =
-                this.controller.plugins.globals.folders.get_folder_from_variant(id);
+                this.controller.plugins.globals.folders.get_folder_for_variant(id);
             if (folder != null) {
                 yield main.select_folder(folder, true);
             }
diff --git a/src/client/application/application-email-store-factory.vala 
b/src/client/application/application-email-store-factory.vala
index 6816dbaa3..c5c5925e7 100644
--- a/src/client/application/application-email-store-factory.vala
+++ b/src/client/application/application-email-store-factory.vala
@@ -89,11 +89,11 @@ internal class Application.EmailStoreFactory : Geary.BaseObject {
             return emails;
         }
 
-        public Plugin.EmailIdentifier? get_email_identifier_from_variant(
+        public Plugin.EmailIdentifier? get_email_identifier_for_variant(
             GLib.Variant variant
         ) {
-            var account = this.factory.get_account_from_variant(variant);
-            var id = this.factory.get_email_identifier_from_variant(variant);
+            var account = this.factory.get_account_for_variant(variant);
+            var id = this.factory.get_email_identifier_for_variant(variant);
             IdImpl? plugin_id = null;
             if (account != null && id != null) {
                 var plugin_account = this.factory.accounts.get(account);
@@ -306,6 +306,11 @@ internal class Application.EmailStoreFactory : Geary.BaseObject {
         }
     }
 
+    public Geary.Email? to_engine_email(Plugin.Email plugin) {
+        var impl = plugin as EmailImpl;
+        return (impl != null) ? impl.backing : null;
+    }
+
     public Gee.Collection<Plugin.EmailIdentifier> to_plugin_ids(
         Gee.Collection<Geary.EmailIdentifier> engine_ids,
         AccountContext account
@@ -328,7 +333,7 @@ internal class Application.EmailStoreFactory : Geary.BaseObject {
     }
 
     /** Returns the account context for the given plugin email id. */
-    public AccountContext get_account_from_variant(GLib.Variant target) {
+    public AccountContext get_account_for_variant(GLib.Variant target) {
         AccountContext? account = null;
         string id = (string) target.get_child_value(0);
         foreach (var context in this.accounts.keys) {
@@ -343,9 +348,9 @@ internal class Application.EmailStoreFactory : Geary.BaseObject {
 
     /** Returns the engine email id for the given plugin email id. */
     public Geary.EmailIdentifier?
-        get_email_identifier_from_variant(GLib.Variant target) {
+        get_email_identifier_for_variant(GLib.Variant target) {
         Geary.EmailIdentifier? id = null;
-        var context = get_account_from_variant(target);
+        var context = get_account_for_variant(target);
         if (context != null) {
             try {
                 id = context.account.to_email_identifier(
diff --git a/src/client/application/application-folder-plugin-context.vala 
b/src/client/application/application-folder-plugin-context.vala
index 35174a6af..0c095b4fd 100644
--- a/src/client/application/application-folder-plugin-context.vala
+++ b/src/client/application/application-folder-plugin-context.vala
@@ -35,7 +35,7 @@ internal class Application.FolderPluginContext :
     public void add_folder_info_bar(Plugin.Folder selected,
                                     Plugin.InfoBar info_bar,
                                     uint priority) {
-        Geary.Folder? folder = this.globals.folders.get_engine_folder(selected);
+        Geary.Folder? folder = this.globals.folders.to_engine_folder(selected);
         if (folder != null) {
             foreach (MainWindow main in this.application.get_main_windows()) {
                 if (main.selected_folder == folder) {
@@ -53,7 +53,7 @@ internal class Application.FolderPluginContext :
 
     public void remove_folder_info_bar(Plugin.Folder selected,
                                        Plugin.InfoBar info_bar) {
-        Geary.Folder? folder = this.globals.folders.get_engine_folder(selected);
+        Geary.Folder? folder = this.globals.folders.to_engine_folder(selected);
         if (folder != null) {
             foreach (MainWindow main in this.application.get_main_windows()) {
                 if (main.selected_folder == folder) {
@@ -69,7 +69,7 @@ internal class Application.FolderPluginContext :
     public void register_folder_used_as(Plugin.Folder target,
                                         string name,
                                         string icon_name) throws Plugin.Error {
-        var context = this.globals.folders.get_folder_context(target);
+        var context = this.globals.folders.to_folder_context(target);
         if (context != null) {
             try {
                 context.folder.set_used_as_custom(true);
@@ -85,7 +85,7 @@ internal class Application.FolderPluginContext :
 
     public void unregister_folder_used_as(Plugin.Folder target)
         throws Plugin.Error {
-        var context = this.globals.folders.get_folder_context(target);
+        var context = this.globals.folders.to_folder_context(target);
         if (context != null) {
             try {
                 context.folder.set_used_as_custom(false);
diff --git a/src/client/application/application-folder-store-factory.vala 
b/src/client/application/application-folder-store-factory.vala
index 84fdf1a85..e1eb4e6fb 100644
--- a/src/client/application/application-folder-store-factory.vala
+++ b/src/client/application/application-folder-store-factory.vala
@@ -70,7 +70,7 @@ internal class Application.FolderStoreFactory : Geary.BaseObject {
             Geary.Folder engine = yield account.backing.account.create_personal_folder(
                 name, NONE, cancellable
             );
-            var folder = this.factory.get_plugin_folder(engine);
+            var folder = this.factory.to_plugin_folder(engine);
             if (folder == null) {
                 throw new Geary.EngineError.NOT_FOUND(
                     "No plugin folder found for the created folder"
@@ -79,8 +79,8 @@ internal class Application.FolderStoreFactory : Geary.BaseObject {
             return folder;
         }
 
-        public Plugin.Folder? get_folder_from_variant(GLib.Variant variant) {
-            var folder = this.factory.get_folder_from_variant(variant);
+        public Plugin.Folder? get_folder_for_variant(GLib.Variant variant) {
+            var folder = this.factory.get_folder_for_variant(variant);
             return this.factory.folders.get(folder);
         }
 
@@ -189,24 +189,24 @@ internal class Application.FolderStoreFactory : Geary.BaseObject {
     }
 
     /** Returns the plugin folder for the given engine folder. */
-    public Plugin.Folder? get_plugin_folder(Geary.Folder engine) {
+    public Plugin.Folder? to_plugin_folder(Geary.Folder engine) {
         return this.folders.get(engine);
     }
 
     /** Returns the engine folder for the given plugin folder. */
-    public Geary.Folder? get_engine_folder(Plugin.Folder plugin) {
+    public Geary.Folder? to_engine_folder(Plugin.Folder plugin) {
         FolderImpl? impl = plugin as FolderImpl;
         return (impl != null) ? impl.backing.folder : null;
     }
 
     /** Returns the folder context for the given plugin folder. */
-    public FolderContext get_folder_context(Plugin.Folder plugin) {
+    public FolderContext to_folder_context(Plugin.Folder plugin) {
         FolderImpl? impl = plugin as FolderImpl;
         return (impl != null) ? impl.backing : null;
     }
 
     /** Returns the folder context for the given plugin folder id. */
-    public Geary.Folder? get_folder_from_variant(GLib.Variant target) {
+    public Geary.Folder? get_folder_for_variant(GLib.Variant target) {
         string id = (string) target.get_child_value(0);
         AccountContext? context = null;
         foreach (var key in this.accounts.keys) {
@@ -322,7 +322,7 @@ internal class Application.FolderStoreFactory : Geary.BaseObject {
         if (main != null) {
             Geary.Folder? selected = main.selected_folder;
             if (selected != null) {
-                var plugin = get_plugin_folder(selected);
+                var plugin = to_plugin_folder(selected);
                 if (plugin != null) {
                     foreach (FolderStoreImpl store in this.stores) {
                         store.folder_selected(plugin);
diff --git a/src/client/application/application-notification-plugin-context.vala 
b/src/client/application/application-notification-plugin-context.vala
index 55c17d708..2f0b61038 100644
--- a/src/client/application/application-notification-plugin-context.vala
+++ b/src/client/application/application-notification-plugin-context.vala
@@ -80,7 +80,7 @@ internal class Application.NotificationPluginContext :
 
     public async Plugin.ContactStore get_contacts_for_folder(Plugin.Folder source)
         throws Plugin.Error.NOT_FOUND, Plugin.Error.PERMISSION_DENIED {
-        Geary.Folder? folder = this.globals.folders.get_engine_folder(source);
+        Geary.Folder? folder = this.globals.folders.to_engine_folder(source);
         AccountContext? context = null;
         if (folder != null) {
             context = this.application.controller.get_context_for_account(
@@ -109,7 +109,7 @@ internal class Application.NotificationPluginContext :
         // conversations are visible. That is, if there is a main
         // window, it's focused, the folder is selected, and the
         // conversation list is at the top.
-        Geary.Folder? folder = this.globals.folders.get_engine_folder(target);
+        Geary.Folder? folder = this.globals.folders.to_engine_folder(target);
         MainWindow? window = this.application.last_active_main_window;
         return (
             folder != null &&
@@ -130,7 +130,7 @@ internal class Application.NotificationPluginContext :
      */
     public int get_new_message_count(Plugin.Folder target)
         throws Plugin.Error.NOT_FOUND {
-        Geary.Folder? folder = this.globals.folders.get_engine_folder(target);
+        Geary.Folder? folder = this.globals.folders.to_engine_folder(target);
         MonitorInformation? info = null;
         if (folder != null) {
             info = folder_information.get(folder);
@@ -150,7 +150,7 @@ internal class Application.NotificationPluginContext :
      * recording new messages for a specific folder.
      */
     public void start_monitoring_folder(Plugin.Folder target) {
-        Geary.Folder? folder = this.globals.folders.get_engine_folder(target);
+        Geary.Folder? folder = this.globals.folders.to_engine_folder(target);
         AccountContext? context =
             this.application.controller.get_context_for_account(
                 folder.account.information
@@ -170,7 +170,7 @@ internal class Application.NotificationPluginContext :
 
     /** Stops monitoring a folder for new messages. */
     public void stop_monitoring_folder(Plugin.Folder target) {
-        Geary.Folder? folder = this.globals.folders.get_engine_folder(target);
+        Geary.Folder? folder = this.globals.folders.to_engine_folder(target);
         if (folder != null) {
             remove_folder(folder);
         }
@@ -179,7 +179,7 @@ internal class Application.NotificationPluginContext :
     /** Determines if a folder is curently being monitored. */
     public bool is_monitoring_folder(Plugin.Folder target) {
         return this.folder_information.has_key(
-            this.globals.folders.get_engine_folder(target)
+            this.globals.folders.to_engine_folder(target)
         );
     }
 
@@ -243,7 +243,7 @@ internal class Application.NotificationPluginContext :
                               bool arrived,
                               Gee.Collection<Geary.EmailIdentifier> delta) {
         Plugin.Folder folder =
-            this.globals.folders.get_plugin_folder(info.folder);
+            this.globals.folders.to_plugin_folder(info.folder);
         AccountContext? context =
             this.application.controller.get_context_for_account(
                 info.folder.account.information
diff --git a/src/client/application/application-plugin-manager.vala 
b/src/client/application/application-plugin-manager.vala
index ce3acdeb5..69e8435ae 100644
--- a/src/client/application/application-plugin-manager.vala
+++ b/src/client/application/application-plugin-manager.vala
@@ -235,7 +235,7 @@ public class Application.PluginManager : GLib.Object {
         }
 
         public void show_folder(Plugin.Folder folder) {
-            Geary.Folder? target = this.globals.folders.get_engine_folder(folder);
+            Geary.Folder? target = this.globals.folders.to_engine_folder(folder);
             if (target != null) {
                 MainWindow window = this.backing.get_active_main_window();
                 window.select_folder.begin(target, true);
@@ -251,7 +251,7 @@ public class Application.PluginManager : GLib.Object {
                );
            }
 
-           Geary.Folder? target = this.globals.folders.get_engine_folder(folder);
+           Geary.Folder? target = this.globals.folders.to_engine_folder(folder);
            if (target != null) {
                if (!main.prompt_empty_folder(target.used_as)) {
                    throw new Plugin.Error.PERMISSION_DENIED(
@@ -369,7 +369,7 @@ public class Application.PluginManager : GLib.Object {
                 // Ugh
                 this._save_to = (
                     (backing.save_to != null)
-                    ? this.application.globals.folders.get_plugin_folder(
+                    ? this.application.globals.folders.to_plugin_folder(
                         this.backing.save_to
                     )
                     : null
@@ -394,7 +394,7 @@ public class Application.PluginManager : GLib.Object {
         }
 
         public void save_to_folder(Plugin.Folder? location) {
-            var engine = this.application.globals.folders.get_engine_folder(location);
+            var engine = this.application.globals.folders.to_engine_folder(location);
             if (engine != null && engine.account == this.backing.sender_context.account) {
                 this.backing.set_save_to_override.begin(
                     engine,
@@ -615,9 +615,26 @@ public class Application.PluginManager : GLib.Object {
 
     }
 
+    /** Returns the client account context for the given plugin account, if any. */
+    public AccountContext? to_client_account(Plugin.Account plugin) {
+        var impl = plugin as AccountImpl;
+        return (impl != null) ? impl.backing : null;
+    }
+
+    /** Returns the engine account for the given plugin account, if any. */
+    public Geary.Account? to_engine_account(Plugin.Account plugin) {
+        var impl = plugin as AccountImpl;
+        return (impl != null) ? impl.backing.account : null;
+    }
+
     /** Returns the engine folder for the given plugin folder, if any. */
-    public Geary.Folder? get_engine_folder(Plugin.Folder plugin) {
-        return this.globals.folders.get_engine_folder(plugin);
+    public Geary.Folder? to_engine_folder(Plugin.Folder plugin) {
+        return this.globals.folders.to_engine_folder(plugin);
+    }
+
+    /** Returns the engine email for the given plugin email, if any. */
+    public Geary.Email? to_engine_email(Plugin.Email plugin) {
+        return this.globals.email.to_engine_email(plugin);
     }
 
     public Gee.Collection<Peas.PluginInfo> get_optional_plugins() {
diff --git a/src/client/plugin/email-templates/email-templates.vala 
b/src/client/plugin/email-templates/email-templates.vala
index dc6511887..7da99d7dd 100644
--- a/src/client/plugin/email-templates/email-templates.vala
+++ b/src/client/plugin/email-templates/email-templates.vala
@@ -336,7 +336,7 @@ public class Plugin.EmailTemplates :
 
     private void on_new_activated(GLib.Action action, GLib.Variant? target) {
         if (this.folder_store != null && target != null) {
-            Folder? folder = this.folder_store.get_folder_from_variant(target);
+            Folder? folder = this.folder_store.get_folder_for_variant(target);
             if (folder != null) {
                 this.edit_email.begin(folder, null, false);
             }
@@ -346,7 +346,7 @@ public class Plugin.EmailTemplates :
     private void on_edit_activated(GLib.Action action, GLib.Variant? target) {
         if (this.email_store != null && target != null) {
             EmailIdentifier? id =
-                this.email_store.get_email_identifier_from_variant(target);
+                this.email_store.get_email_identifier_for_variant(target);
             if (id != null) {
                 this.edit_email.begin(null, id, false);
             }
@@ -356,7 +356,7 @@ public class Plugin.EmailTemplates :
     private void on_send_activated(GLib.Action action, GLib.Variant? target) {
         if (this.email_store != null && target != null) {
             EmailIdentifier? id =
-                this.email_store.get_email_identifier_from_variant(target);
+                this.email_store.get_email_identifier_for_variant(target);
             if (id != null) {
                 this.edit_email.begin(null, id, true);
             }
diff --git a/src/client/plugin/folder-highlight/folder-highlight.vala 
b/src/client/plugin/folder-highlight/folder-highlight.vala
index ff4796adc..0960c8160 100644
--- a/src/client/plugin/folder-highlight/folder-highlight.vala
+++ b/src/client/plugin/folder-highlight/folder-highlight.vala
@@ -77,7 +77,7 @@ public class Plugin.FolderHighlight :
     private void on_new_messages_arrived(Folder folder,
                                          int total,
                                          Gee.Collection<EmailIdentifier> added) {
-        Geary.Folder? engine = this.client_plugins.get_engine_folder(folder);
+        Geary.Folder? engine = this.client_plugins.to_engine_folder(folder);
         if (engine != null) {
             foreach (global::Application.MainWindow window
                      in this.client_application.get_main_windows()) {
@@ -87,7 +87,7 @@ public class Plugin.FolderHighlight :
     }
 
     private void on_new_messages_retired(Folder folder, int total) {
-        Geary.Folder? engine = this.client_plugins.get_engine_folder(folder);
+        Geary.Folder? engine = this.client_plugins.to_engine_folder(folder);
         if (engine != null) {
             foreach (global::Application.MainWindow window
                      in this.client_application.get_main_windows()) {
diff --git a/src/client/plugin/mail-merge/mail-merge.vala b/src/client/plugin/mail-merge/mail-merge.vala
index 56b41fcf3..c66bac062 100644
--- a/src/client/plugin/mail-merge/mail-merge.vala
+++ b/src/client/plugin/mail-merge/mail-merge.vala
@@ -336,7 +336,7 @@ public class Plugin.MailMerge :
     private void on_edit_activated(GLib.Action action, GLib.Variant? target) {
         if (this.email_store != null && target != null) {
             EmailIdentifier? id =
-                this.email_store.get_email_identifier_from_variant(target);
+                this.email_store.get_email_identifier_for_variant(target);
             if (id != null) {
                 this.edit_email.begin(id);
             }
@@ -346,9 +346,9 @@ public class Plugin.MailMerge :
     private void on_merge_activated(GLib.Action action, GLib.Variant? target) {
         if (this.email_store != null && target != null) {
             EmailIdentifier? id =
-                this.email_store.get_email_identifier_from_variant(target);
+                this.email_store.get_email_identifier_for_variant(target);
             if (id != null) {
-                this.merge_email.begin(id);
+                this.merge_email.begin(id, null);
             }
         }
     }
diff --git a/src/client/plugin/plugin-email-store.vala b/src/client/plugin/plugin-email-store.vala
index 89727d3e8..75e6e2b6b 100644
--- a/src/client/plugin/plugin-email-store.vala
+++ b/src/client/plugin/plugin-email-store.vala
@@ -20,7 +20,7 @@ public interface Plugin.EmailStore : Geary.BaseObject {
      * The type of variant email identifiers.
      *
      * @see EmailIdentifier.to_variant
-     * @see get_email_identifier_from_variant
+     * @see get_email_identifier_for_variant
      */
     public abstract GLib.VariantType email_identifier_variant_type { get; }
 
@@ -42,6 +42,6 @@ public interface Plugin.EmailStore : Geary.BaseObject {
      * @see EmailIdentifier.to_variant
      * @see email_identifier_variant_type
      */
-    public abstract EmailIdentifier? get_email_identifier_from_variant(GLib.Variant id);
+    public abstract EmailIdentifier? get_email_identifier_for_variant(GLib.Variant id);
 
 }
diff --git a/src/client/plugin/plugin-email.vala b/src/client/plugin/plugin-email.vala
index 1a9656c33..21e4c8fcd 100644
--- a/src/client/plugin/plugin-email.vala
+++ b/src/client/plugin/plugin-email.vala
@@ -89,6 +89,9 @@ public interface Plugin.EmailIdentifier :
      *
      * This value is suitable to be used as the `show-email`
      * application action parameter.
+     *
+     * @see EmailStore.get_email_identifier_from_variant
+     * @see EmailStore.email_identifier_variant_type`
      */
     public abstract GLib.Variant to_variant();
 
diff --git a/src/client/plugin/plugin-folder-store.vala b/src/client/plugin/plugin-folder-store.vala
index 5cd1127f0..4a622cfcc 100644
--- a/src/client/plugin/plugin-folder-store.vala
+++ b/src/client/plugin/plugin-folder-store.vala
@@ -20,7 +20,7 @@ public interface Plugin.FolderStore : Geary.BaseObject {
      * The type of variant folder identifiers.
      *
      * @see Folder.to_variant
-     * @see get_folder_from_variant
+     * @see get_folder_for_variant
      */
     public abstract GLib.VariantType folder_variant_type { get; }
 
@@ -61,7 +61,7 @@ public interface Plugin.FolderStore : Geary.BaseObject {
      * @see Folder.to_variant
      * @see folder_variant_type
      */
-    public abstract Folder? get_folder_from_variant(GLib.Variant id);
+    public abstract Folder? get_folder_for_variant(GLib.Variant id);
 
 
 }
diff --git a/src/client/plugin/plugin-folder.vala b/src/client/plugin/plugin-folder.vala
index bfa43d9ef..167c02e97 100644
--- a/src/client/plugin/plugin-folder.vala
+++ b/src/client/plugin/plugin-folder.vala
@@ -36,7 +36,7 @@ public interface Plugin.Folder : Geary.BaseObject {
      * FolderStore}, and is suitable to be used as the `show-folder`
      * application action parameter.
      *
-     * @see FolderStore.get_folder_from_variant
+     * @see FolderStore.get_folder_for_variant
      * @see FolderStore.folder_variant_type
      */
     public abstract GLib.Variant to_variant();
diff --git a/src/client/plugin/special-folders/special-folders.vala 
b/src/client/plugin/special-folders/special-folders.vala
index 97d2b66ab..b65325c1c 100644
--- a/src/client/plugin/special-folders/special-folders.vala
+++ b/src/client/plugin/special-folders/special-folders.vala
@@ -219,7 +219,7 @@ public class Plugin.SpecialFolders :
 
     private void on_edit_activated(GLib.Action action, GLib.Variant? target) {
         if (this.email_store != null && target != null) {
-            EmailIdentifier? id = this.email_store.get_email_identifier_from_variant(
+            EmailIdentifier? id = this.email_store.get_email_identifier_for_variant(
                 target
             );
             if (id != null) {
@@ -232,7 +232,7 @@ public class Plugin.SpecialFolders :
 
     private void on_empty_activated(GLib.Action action, GLib.Variant? target) {
         if (this.folder_store != null && target != null) {
-            Folder? folder = this.folder_store.get_folder_from_variant(target);
+            Folder? folder = this.folder_store.get_folder_for_variant(target);
             if (folder != null) {
                 this.plugin_application.empty_folder.begin(folder);
             }


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