list input methods (#21)

.github/workflows/ci.yml

@@ -34,6 +34,7 @@ jobs:
       - name: Install dependencies
         run: |
           brew install \
+            nlohmann-json \
             extra-cmake-modules
           IOS_PLATFORM=SIMULATOR ./scripts/install-deps.sh
           wget https://github.com/fcitx-contrib/fcitx5-macos-prebuilder/releases/download/latest/marisa-$(uname -m).tar.bz2

CMakeLists.txt

@@ -60,6 +60,7 @@ option(BUILD_SPELL_DICT "" OFF)
 
 find_host_package(PkgConfig)
 find_host_package(Gettext)
+find_host_package(nlohmann_json)
 
 add_subdirectory(fcitx5)
 

common/CMakeLists.txt

@@ -1,8 +1,11 @@
-add_library(FcitxCommon common.cpp)
+add_library(FcitxCommon
+    common.cpp
+    inputmethod.cpp
+)
 target_include_directories(FcitxCommon PRIVATE
     "${PROJECT_SOURCE_DIR}/fcitx5/src/modules/notifications"
 )
-target_link_libraries(FcitxCommon Fcitx5::Core)
+target_link_libraries(FcitxCommon Fcitx5::Core nlohmann_json)
 
 add_library(SwiftUtil util.swift)
 set_target_properties(SwiftUtil PROPERTIES Swift_MODULE_NAME SwiftUtil)

common/common-public.h

@@ -0,0 +1,3 @@
+#include <string>
+
+std::string getInputMethods();

common/inputmethod.cpp

@@ -0,0 +1,35 @@
+#include "common-public.h"
+#include "common.h"
+#include <fcitx/inputmethodentry.h>
+#include <fcitx/inputmethodmanager.h>
+#include <nlohmann/json.hpp>
+
+static nlohmann::json jsonDescribeIm(const fcitx::InputMethodEntry *entry) {
+    nlohmann::json j;
+    j["name"] = entry->uniqueName();
+    j["displayName"] = entry->nativeName() != "" ? entry->nativeName()
+                       : entry->name() != ""     ? entry->name()
+                                                 : entry->uniqueName();
+    j["languageCode"] = entry->languageCode();
+    return j;
+}
+
+std::string getInputMethods() {
+    static std::string ret;
+    nlohmann::json j;
+    auto &imMgr = instance->inputMethodManager();
+    auto group = imMgr.currentGroup();
+    bool empty = true;
+    for (const auto &im : group.inputMethodList()) {
+        auto entry = imMgr.entry(im.name());
+        if (!entry)
+            continue;
+        empty = false;
+        j.push_back(jsonDescribeIm(entry));
+    }
+    if (empty) { // j is not treated array
+        return "[]";
+    }
+    ret = j.dump();
+    return ret.c_str();
+}

common/module.modulemap

@@ -0,0 +1,3 @@
+module FcitxCommon {
+  header "common-public.h"
+}

src/App.swift

@@ -1,15 +1,23 @@
 import SwiftUI
+import SwiftUtil
 
 @main
 struct Fcitx5App: App {
   @UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
+  @Environment(\.scenePhase) private var scenePhase
 
   // Dummy. Actual Scene in managed by SceneDelegate. But onOpenURL is
   // always called on open from URL no matter app is running or not.
   var body: some Scene {
     WindowGroup {
       EmptyView().onOpenURL { url in
         SceneDelegate.contentView?.handleURL(url)
+      }.onChange(of: scenePhase) { newPhase in
+        if newPhase == .active {
+          logger.info("App is active")
+          sync(
+            documents.appendingPathComponent("rime"), appGroupData.appendingPathComponent("rime"))
+        }
       }
     }
   }

src/CMakeLists.txt

@@ -2,6 +2,7 @@ add_executable(
     ${BUNDLE_NAME}
     MACOSX_BUNDLE
     ContentView.swift
+    ConfigView.swift
     App.swift
     AppDelegate.swift
     SceneDelegate.swift
@@ -10,6 +11,7 @@ add_executable(
 
 target_include_directories(${BUNDLE_NAME} PRIVATE
     "${CMAKE_CURRENT_SOURCE_DIR}"
+    "${PROJECT_SOURCE_DIR}/common"
     "${PROJECT_BINARY_DIR}/common/$<CONFIG>${CMAKE_XCODE_EFFECTIVE_PLATFORMS}"
     "${PROJECT_BINARY_DIR}/iosnotifications/$<CONFIG>${CMAKE_XCODE_EFFECTIVE_PLATFORMS}"
     "${PROJECT_BINARY_DIR}/deps/AlertToast/$<CONFIG>${CMAKE_XCODE_EFFECTIVE_PLATFORMS}"

src/ConfigView.swift

@@ -0,0 +1,12 @@
+import SwiftUI
+
+struct ConfigView: View {
+  let inputMethod: InputMethod
+
+  var body: some View {
+    VStack {
+    }
+    .navigationTitle(inputMethod.displayName)
+    .navigationBarTitleDisplayMode(.inline)
+  }
+}

src/ContentView.swift

@@ -1,15 +1,27 @@
 import AlertToast
 import Fcitx
+import FcitxCommon
 import NotifySwift
 import SwiftUI
 import SwiftUtil
 
+struct InputMethod: Codable {
+  let name: String
+  let displayName: String
+  let languageCode: String
+}
+
 private class ViewModel: ObservableObject {
   @Published var url: URL?
+  @Published var inputMethods = [InputMethod]()
+
+  func refresh() {
+    inputMethods = try! JSONDecoder().decode(
+      [InputMethod].self, from: String(getInputMethods()).data(using: .utf8)!)
+  }
 }
 
 struct ContentView: View {
-  @Environment(\.scenePhase) private var scenePhase
   @ObservedObject private var viewModel = ViewModel()
 
   // AlertToast fields
@@ -25,15 +37,18 @@ struct ContentView: View {
   }
 
   var body: some View {
-    VStack {
-      Image(systemName: "globe")
-        .imageScale(.large)
-        .foregroundStyle(.tint)
-      if let url = viewModel.url {
-        Text("\(url)")
+    NavigationView {
+      List {
+        Section(header: Text("Input Methods")) {
+          ForEach(viewModel.inputMethods, id: \.name) { inputMethod in
+            NavigationLink(destination: ConfigView(inputMethod: inputMethod)) {
+              Text(inputMethod.displayName)
+            }
+          }
+        }
       }
+      .navigationTitle("Fcitx5")
     }
-    .padding()
     .toast(isPresenting: $showToast, duration: duration) {
       AlertToast(
         displayMode: .alert,
@@ -71,11 +86,7 @@ struct ContentView: View {
           }
         }
       })
-    }
-    .onChange(of: scenePhase) { newPhase in
-      if newPhase == .active {
-        sync(documents.appendingPathComponent("rime"), appGroupData.appendingPathComponent("rime"))
-      }
+      viewModel.refresh()
     }
   }
 }