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File reload-preload-engines-until-users-customize-the-list.patch of Package ibus (Revision 1dc3bb68e6c9efbe0710a8ab08f0d07f)

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From a6d4b9ac9a22c5b88c362b659eaf6fd59a0cf5bd Mon Sep 17 00:00:00 2001
From: fujiwarat <takao.fujiwara1@gmail.com>
Date: Tue, 14 Jan 2014 15:30:24 +0900
Subject: [PATCH] Reload preload engines until users customize the list.

The idea is, if users don't customize the preload_engines with ibus-setup,
users would prefer to load the system default engines again by login.
The gsettings value 'preload-engine-mode' is
IBUS_PRELOAD_ENGINE_MODE_USER by default but set
IBUS_PRELOAD_ENGINE_MODE_LANG_RELATIVE for the initial login.
If 'preload-engine-mode' is IBUS_PRELOAD_ENGINE_MODE_LANG_RELATIVE,
ibus-daemon loads the system preload engines by langs.
If 'preload-engine-mode' is IBUS_PRELOAD_ENGINE_MODE_USER,
ibus-daemon do not update the gsettings value 'preload-engines'
On the other hand, if users enable the customized engine checkbutton
on ibus-setup, ibus-setup sets 'preload-engine-mode' as
IBUS_PRELOAD_ENGINE_MODE_USER and users can customize the value
'preload-engines'.
---
 data/ibus.schemas.in | 24 ++++++++++++++
 setup/main.py        | 70 +++++++++++++++++++++++++++++++++++----
 setup/setup.ui       | 22 +++++++++++--
 src/ibustypes.h      | 10 ++++++
 ui/gtk3/panel.vala   | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 210 insertions(+), 9 deletions(-)

diff --git a/data/ibus.schemas.in b/data/ibus.schemas.in
index 8fd7e15..28d2219 100644
--- a/data/ibus.schemas.in
+++ b/data/ibus.schemas.in
@@ -2,6 +2,30 @@
 <gconfschemafile>
   <schemalist>
     <schema>
+      <key>/schemas/desktop/ibus/general/preload_engine_mode</key>
+      <applyto>/desktop/ibus/general/preload_engine_mode</applyto>
+      <owner>ibus</owner>
+      <type>int</type>
+      <default>0</default>
+      <locale name="C">
+        <short>Preload engine mode</short>
+            <long>Preload engines are loaded with this mode.
+                  0 = user customized engines.
+                  1 = language related engines.</long>
+      </locale>
+    </schema>
+    <schema>
+      <key>/schemas/desktop/ibus/general/preload_engines_inited</key>
+      <applyto>/desktop/ibus/general/preload_engines_inited</applyto>
+      <owner>ibus</owner>
+      <type>bool</type>
+      <default>false</default>
+      <locale name="C">
+        <short>The key preload_engines is initialized</short>
+            <long>The key preload_engines is initialized</long>
+      </locale>
+    </schema>
+    <schema>
       <key>/schemas/desktop/ibus/general/preload_engines</key>
       <applyto>/desktop/ibus/general/preload_engines</applyto>
       <owner>ibus</owner>
diff --git a/setup/main.py b/setup/main.py
index d3f4414..235ef9c 100644
--- a/setup/main.py
+++ b/setup/main.py
@@ -187,16 +187,30 @@ def __init_general(self):
                                     'active',
                                     Gio.SettingsBindFlags.DEFAULT)
 
+        # set preload mode
+        preload_engine_mode = \
+                self.__settings_general.get_int('preload-engine-mode')
+        button = self.__builder.get_object("checkbutton_preload_engine_mode")
+        hbox = self.__builder.get_object("hbox_customize_active_input_methods")
+        if preload_engine_mode == IBus.PreloadEngineMode.USER:
+            button.set_active(True)
+            hbox.set_sensitive(True)
+        else:
+            button.set_active(False)
+            hbox.set_sensitive(False)
+        button.connect('toggled',
+                       self.__checkbutton_preload_engine_mode_toggled_cb)
+
+        self.__settings_general.connect('changed::preload-engines',
+                self.__settings_general_preload_engines_cb)
+
         # init engine page
         self.__engines = self.__bus.list_engines()
         self.__combobox = self.__builder.get_object("combobox_engines")
         self.__combobox.set_engines(self.__engines)
 
-        tmp_dict = {}
-        for e in self.__engines:
-            tmp_dict[e.get_name()] = e
         engine_names = self.__settings_general.get_strv('preload-engines')
-        engines = [tmp_dict[name] for name in engine_names if name in tmp_dict]
+        engines = self.__get_engine_descs_from_names(engine_names)
 
         self.__treeview = self.__builder.get_object("treeview_engines")
         self.__treeview.set_engines(engines)
@@ -246,8 +260,8 @@ def __init_ui(self):
     def __combobox_notify_active_engine_cb(self, combobox, property):
         engine = self.__combobox.get_active_engine()
         button = self.__builder.get_object("button_engine_add")
-        button.set_sensitive(
-                engine != None and engine not in self.__treeview.get_engines())
+        button.set_sensitive(engine != None and \
+                engine.get_name() not in map(lambda e: e.get_name(), self.__treeview.get_engines()))
 
     def __get_engine_setup_exec_args(self, engine):
         args = []
@@ -267,6 +281,13 @@ def __get_engine_setup_exec_args(self, engine):
             args.append(path.basename(setup_path))
         return args
 
+    def __get_engine_descs_from_names(self, engine_names):
+        tmp_dict = {}
+        for e in self.__engines:
+            tmp_dict[e.get_name()] = e
+        engines = [tmp_dict[name] for name in engine_names if name in tmp_dict]
+        return engines
+
     def __treeview_notify_cb(self, treeview, prop):
         if prop.name not in ("active-engine", "engines"):
             return
@@ -318,6 +339,43 @@ def __button_engine_preferences_cb(self, button):
             del self.__engine_setup_exec_list[name]
         self.__engine_setup_exec_list[name] = os.spawnl(os.P_NOWAIT, *args)
 
+    def __checkbutton_preload_engine_mode_toggled_cb(self, button):
+        if button.get_active():
+            self.__settings_general.set_int('preload-engine-mode',
+                                            IBus.PreloadEngineMode.USER)
+            self.__builder.get_object(
+                    "hbox_customize_active_input_methods").set_sensitive(True)
+            self.__treeview.notify('engines')
+        else:
+            message = _("The list of your saved input methods will be " \
+                        "cleared immediately and the list will be " \
+                        "configured by the login language every time. " \
+                        "Do you agree with this?")
+            dlg = Gtk.MessageDialog(type = Gtk.MessageType.QUESTION,
+                    buttons = Gtk.ButtonsType.YES_NO,
+                    message_format = message)
+            id = dlg.run()
+            dlg.destroy()
+            self.__flush_gtk_events()
+            if id != Gtk.ResponseType.YES:
+                button.set_active(True)
+                return
+            self.__settings_general.set_int(
+                    'preload-engine-mode',
+                    IBus.PreloadEngineMode.LANG_RELATIVE)
+            self.__builder.get_object(
+                    "hbox_customize_active_input_methods").set_sensitive(False)
+
+    def __settings_general_preload_engines_cb(self, settings, key):
+        engine_names = self.__settings_general.get_strv('preload-engines')
+        engines = self.__get_engine_descs_from_names(engine_names)
+        current_engines = self.__treeview.get_engines()
+        engines_csv = str.join(',', map(lambda e: e.get_name(), engines))
+        current_engines_csv = \
+                str.join(',', map(lambda e: e.get_name(), current_engines))
+        if engines_csv != current_engines_csv:
+            self.__treeview.set_engines(engines)
+
     def __init_bus(self):
         self.__bus = IBus.Bus()
         if self.__bus.is_connected():
diff --git a/setup/setup.ui b/setup/setup.ui
index 65dcee4..a6a001b 100644
--- a/setup/setup.ui
+++ b/setup/setup.ui
@@ -669,7 +669,23 @@
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <child>
-                      <object class="GtkHBox" id="hbox1">
+                      <object class="GtkCheckButton" id="checkbutton_preload_engine_mode">
+                        <property name="visible">True</property>
+                        <property name="label" translatable="yes">Customize active input _methods</property>
+                        <property name="use_underline">True</property>
+                        <property name="can_focus">True</property>
+                        <property name="receives_default">False</property>
+                        <property name="tooltip_text" translatable="yes">Customize active input methods</property>
+                        <property name="draw_indicator">True</property>
+                      </object>
+                      <packing>
+                        <property name="expand">False</property>
+                        <property name="fill">True</property>
+                        <property name="position">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkHBox" id="hbox_customize_active_input_methods">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
                         <child>
@@ -858,7 +874,7 @@
                       <packing>
                         <property name="expand">True</property>
                         <property name="fill">True</property>
-                        <property name="position">0</property>
+                        <property name="position">1</property>
                       </packing>
                     </child>
                     <child>
@@ -905,7 +921,7 @@
                       <packing>
                         <property name="expand">False</property>
                         <property name="fill">True</property>
-                        <property name="position">1</property>
+                        <property name="position">2</property>
                       </packing>
                     </child>
                   </object>
diff --git a/src/ibustypes.h b/src/ibustypes.h
index 86fc2cc..cb9eb22 100644
--- a/src/ibustypes.h
+++ b/src/ibustypes.h
@@ -206,6 +206,16 @@
 } IBusError;
 
 /**
+ * IBusPreloadEngineMode:
+ * @IBUS_PRELOAD_ENGINE_MODE_USER: user custimized engines
+ * @IBUS_PRELOAD_ENGINE_MODE_LANG_RELATIVE: language related engines.
+ */
+typedef enum {
+    IBUS_PRELOAD_ENGINE_MODE_USER          = 0,
+    IBUS_PRELOAD_ENGINE_MODE_LANG_RELATIVE = 1,
+} IBusPreloadEngineMode;
+
+/**
  * IBusRectangle:
  * @x: x coordinate.
  * @y: y coordinate.
diff --git a/ui/gtk3/panel.vala b/ui/gtk3/panel.vala
index 1da7966..fc60fd4 100644
--- a/ui/gtk3/panel.vala
+++ b/ui/gtk3/panel.vala
@@ -136,6 +136,10 @@ class Panel : IBus.PanelService {
                                null);
         });
 
+        m_settings_general.changed["preload-engine-mode"].connect((key) => {
+                update_im_engines();
+        });
+
         m_settings_general.changed["switcher-delay-time"].connect((key) => {
                 set_switcher_delay_time();
         });
@@ -524,7 +528,96 @@ class Panel : IBus.PanelService {
             init_gkbd();
         }
 
+        string[] preload_engines =
+                m_settings_general.get_strv("preload-engines");
+
+        bool preload_engines_inited =
+                m_settings_general.get_boolean("preload-engines-inited");
+
+        // Set preload_engines_inited = true for back compatibility
+        if (preload_engines.length != 0 && !preload_engines_inited) {
+                preload_engines_inited = true;
+                m_settings_general.set_boolean("preload-engines-inited", true);
+        }
+
         update_xkb_engines();
+
+        // Before update preload_engine_mode, update_xkb_engines() is called
+        // because "preload-engine-mode" signal calls update_im_engines().
+        if (!preload_engines_inited)
+            m_settings_general.set_int("preload-engine-mode",
+                                       IBus.PreloadEngineMode.LANG_RELATIVE);
+
+        update_im_engines();
+
+        if (!preload_engines_inited)
+            m_settings_general.set_boolean("preload-engines-inited", true);
+    }
+
+    private bool set_lang_relative_preload_engines() {
+        string locale = Intl.setlocale(LocaleCategory.CTYPE, null);
+
+        if (locale == null)
+            locale = "C";
+
+        string lang = locale.split(".")[0];
+        GLib.List<IBus.EngineDesc> engines = m_bus.list_engines();
+        string[] im_engines = {};
+
+        for (unowned GLib.List<IBus.EngineDesc> p = engines;
+             p != null;
+             p = p.next) {
+            unowned IBus.EngineDesc engine = p.data;
+            if (engine.get_language() == lang && engine.get_rank() > 0)
+                im_engines += engine.get_name();
+        }
+
+        lang = lang.split("_")[0];
+        if (im_engines.length == 0) {
+            for (unowned GLib.List<IBus.EngineDesc> p = engines;
+                 p != null;
+                 p = p.next) {
+                unowned IBus.EngineDesc engine = p.data;
+                if (engine.get_language() == lang && engine.get_rank() > 0)
+                    im_engines += engine.get_name();
+            }
+        }
+
+        if (im_engines.length == 0)
+            return false;
+
+        string[] orig_preload_engines =
+                m_settings_general.get_strv("preload-engines");
+        string[] preload_engines = {};
+
+        // clear input method engines
+        foreach (string name in orig_preload_engines) {
+            if (name.ascii_ncasecmp("xkb:", 4) != 0)
+                continue;
+
+            preload_engines += name;
+        }
+
+        foreach (string name in im_engines) {
+            if (!(name in preload_engines))
+                preload_engines += name;
+        }
+
+        if (string.joinv(",", orig_preload_engines) !=
+            string.joinv(",", preload_engines))
+            m_settings_general.set_strv("preload-engines", preload_engines);
+
+        return true;
+    }
+
+    private void update_im_engines() {
+        int preload_engine_mode =
+                m_settings_general.get_int("preload-engine-mode");
+
+        if (preload_engine_mode == IBus.PreloadEngineMode.USER)
+            return;
+
+        set_lang_relative_preload_engines();
     }
 
     private void update_xkb_engines() {
-- 
1.8.5.1

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File reload-preload-engines-until-users-customize-the-list.patch of Package ibus (Revision 1dc3bb68e6c9efbe0710a8ab08f0d07f)

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