Multiple Language Support

This is similar to https://gerrit.omnirom.org/#/c/14014

A lot of the features built in the older patch set have been split
out into separate patches, most of which have already been merged.
The remaining functionality here should all be directly related to
language selection and loading. We always load English as a base
before loading other languages over the top of the base. The idea
is that if another language is missing a translation, then we will
still display the English.

Maybe still to do: read the /cache/recovery/last_locale file and
load a language based on that. For me, this file contains just:
en_US
We probably won't bother with region specific translations so we
would have to look at either trimming off the _US or using some
other method like perhaps a symlink or a combination of the two.

Thanks to _that for twmsg.cpp class

Change-Id: I9647a22e47883a3ddd2de1da51f64aab7c328f74

Android.mk

@@ -329,6 +329,11 @@ endif
 ifeq ($(shell test $(PLATFORM_SDK_VERSION) -gt 22; echo $$?),0)
     LOCAL_CFLAGS += -DTW_USE_NEW_MINADBD
 endif
+ifneq ($(TW_DEFAULT_LANGUAGE),)
+    LOCAL_CFLAGS += -DTW_DEFAULT_LANGUAGE=$(TW_DEFAULT_LANGUAGE)
+else
+    LOCAL_CFLAGS += -DTW_DEFAULT_LANGUAGE=en
+endif
 
 LOCAL_ADDITIONAL_DEPENDENCIES := \
     dump_image \

data.cpp

@@ -50,6 +50,7 @@
 #include "find_file.hpp"
 #include "set_metadata.h"
 #include <cutils/properties.h>
+#include "gui/gui.hpp"
 
 #define DEVID_MAX 64
 #define HWID_MAX 32
@@ -229,7 +230,7 @@ void DataManager::get_device_id(void) {
 	}
 
 	strcpy(device_id, "serialno");
-	LOGERR("=> device id not found, using '%s'\n", device_id);
+	LOGINFO("=> device id not found, using '%s'\n", device_id);
 	mConstValues.insert(make_pair("device_id", device_id));
 	return;
 }
@@ -616,8 +617,10 @@ void DataManager::SetBackupFolder()
 			}
 		}
 	} else {
-		if (PartitionManager.Fstab_Processed() != 0)
-			LOGERR("Storage partition '%s' not found\n", str.c_str());
+		if (PartitionManager.Fstab_Processed() != 0) {
+			LOGINFO("Storage partition '%s' not found\n", str.c_str());
+			gui_err("unable_locate_storage=Unable to locate storage device.");
+		}
 	}
 }
 
@@ -890,6 +893,8 @@ void DataManager::SetDefaultValues()
 #endif
 	mValues.insert(make_pair("tw_mount_system_ro", make_pair("2", 1)));
 	mValues.insert(make_pair("tw_never_show_system_ro_page", make_pair("0", 1)));
+	mValues.insert(make_pair("tw_language", make_pair(EXPAND(TW_DEFAULT_LANGUAGE), 1)));
+	LOGINFO("LANG: %s\n", EXPAND(TW_DEFAULT_LANGUAGE));
 
 	pthread_mutex_unlock(&m_valuesLock);
 }
@@ -1033,7 +1038,7 @@ void DataManager::Output_Version(void)
 	}
 	FILE *fp = fopen(Path.c_str(), "w");
 	if (fp == NULL) {
-		LOGERR("Unable to open '%s'.\n", Path.c_str());
+		gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(Path)(strerror(errno)));
 		return;
 	}
 	strcpy(version, TW_VERSION_STR);
@@ -1069,7 +1074,7 @@ void DataManager::ReadSettingsFile(void)
 	{
 		usleep(500000);
 		if (!PartitionManager.Mount_Settings_Storage(false))
-			LOGERR("Unable to mount %s when trying to read settings file.\n", settings_file);
+			gui_msg(Msg(msg::kError, "unable_to_mount=Unable to mount {1}")(settings_file));
 	}
 
 	mkdir(mkdir_path, 0777);

find_file.cpp

@@ -48,7 +48,7 @@ string Find_File::Find_Internal(const string& filename, const string& starting_p
 
 	d = opendir(starting_path.c_str());
 	if (d == NULL) {
-		LOGERR("Find_File: Error opening '%s'\n", starting_path.c_str());
+		LOGINFO("Find_File: Error opening '%s'\n", starting_path.c_str());
 		return "";
 	}
 

gui/Android.mk

@@ -28,7 +28,8 @@ LOCAL_SRC_FILES := \
     mousecursor.cpp \
     scrolllist.cpp \
     patternpassword.cpp \
-    textbox.cpp
+    textbox.cpp \
+    twmsg.cpp
 
 ifneq ($(TWRP_CUSTOM_KEYBOARD),)
     LOCAL_SRC_FILES += $(TWRP_CUSTOM_KEYBOARD)
@@ -107,6 +108,7 @@ ifeq ($(TW_CUSTOM_THEME),)
 ifeq ($(TWRP_NEW_THEME),true)
     TWRP_THEME_LOC := $(commands_recovery_local_path)/gui/theme/$(TW_THEME)
     TWRP_RES := $(commands_recovery_local_path)/gui/theme/common/fonts
+    TWRP_RES += $(commands_recovery_local_path)/gui/theme/common/languages
     TWRP_RES += $(commands_recovery_local_path)/gui/theme/common/$(word 1,$(subst _, ,$(TW_THEME))).xml
 # for future copying of used include xmls and fonts:
 # UI_XML := $(TWRP_THEME_LOC)/ui.xml