Initial plugin system

CMakeLists.txt

@@ -18,9 +18,11 @@ endif()
 
 set (CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
 set (CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
-set (VALA_CFLAGS -Wno-deprecated-declarations -Wno-incompatible-pointer-types -Wno-int-conversion)
+set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g")
+set (VALA_CFLAGS -Wno-deprecated-declarations -Wno-incompatible-pointer-types -Wno-int-conversion -Wno-discarded-qualifiers)
 
 add_subdirectory(gpgme-vala)
 add_subdirectory(qlite)
 add_subdirectory(xmpp-vala)
-add_subdirectory(client)
+add_subdirectory(libdino)
+add_subdirectory(main)

client/src/main.vala

@@ -1,12 +0,0 @@
-using Dino.Entities;
-using Dino.Ui;
-
-namespace Dino {
-
-    void main(string[] args) {
-        Notify.init("dino");
-        Gtk.init(ref args);
-        Dino.Ui.Application app = new Dino.Ui.Application();
-        app.run(args);
-    }
-}

cmake/UseVala.cmake

@@ -115,9 +115,11 @@ function(_vala_mkdir_for_file file)
 endfunction()
 
 function(vala_precompile output)
-    cmake_parse_arguments(ARGS "" "DIRECTORY;GENERATE_HEADER;GENERATE_VAPI"
+    cmake_parse_arguments(ARGS "FAST_VAPI" "DIRECTORY;GENERATE_HEADER;GENERATE_VAPI"
         "SOURCES;PACKAGES;OPTIONS;DEFINITIONS;CUSTOM_VAPIS;GRESOURCES" ${ARGN})
 
+    set(ARGS_FAST_VAPI true)
+
     if(ARGS_DIRECTORY)
         get_filename_component(DIRECTORY ${ARGS_DIRECTORY} ABSOLUTE)
     else(ARGS_DIRECTORY)
@@ -159,7 +161,8 @@ function(vala_precompile output)
     set(vapi_arguments "")
     if(ARGS_GENERATE_VAPI)
         list(APPEND out_extra_files "${DIRECTORY}/${ARGS_GENERATE_VAPI}.vapi")
-        set(vapi_arguments "--vapi=${ARGS_GENERATE_VAPI}.vapi")
+        list(APPEND out_extra_files "${DIRECTORY}/${ARGS_GENERATE_VAPI}-internal.vapi")
+        set(vapi_arguments "--vapi=${ARGS_GENERATE_VAPI}.vapi" "--internal-vapi=${ARGS_GENERATE_VAPI}-internal.vapi")
 
         # Header and internal header is needed to generate internal vapi
         if (NOT ARGS_GENERATE_HEADER)
@@ -175,80 +178,115 @@ function(vala_precompile output)
         list(APPEND header_arguments "--internal-header=${DIRECTORY}/${ARGS_GENERATE_HEADER}_internal.h")
     endif(ARGS_GENERATE_HEADER)
 
-    foreach(src ${ARGS_SOURCES} ${ARGS_UNPARSED_ARGUMENTS})
-        set(in_file "${CMAKE_CURRENT_SOURCE_DIR}/${src}")
-        list(APPEND in_files "${in_file}")
-        string(REPLACE ".vala" ".c" src ${src})
-        string(REPLACE ".gs" ".c" src ${src})
-        string(REPLACE ".c" ".vapi" fast_vapi ${src})
-        set(fast_vapi_file "${DIRECTORY}/${fast_vapi}")
-        list(APPEND fast_vapi_files "${fast_vapi_file}")
-        list(APPEND out_files "${DIRECTORY}/${src}")
+    if(ARGS_FAST_VAPI)
+        foreach(src ${ARGS_SOURCES} ${ARGS_UNPARSED_ARGUMENTS})
+            set(in_file "${CMAKE_CURRENT_SOURCE_DIR}/${src}")
+            list(APPEND in_files "${in_file}")
+            string(REPLACE ".vala" ".c" src ${src})
+            string(REPLACE ".gs" ".c" src ${src})
+            string(REPLACE ".c" ".vapi" fast_vapi ${src})
+            set(fast_vapi_file "${DIRECTORY}/${fast_vapi}")
+            list(APPEND fast_vapi_files "${fast_vapi_file}")
+            list(APPEND out_files "${DIRECTORY}/${src}")
 
-        _vala_mkdir_for_file("${fast_vapi_file}")
+            _vala_mkdir_for_file("${fast_vapi_file}")
 
-        add_custom_command(OUTPUT ${fast_vapi_file}
+            add_custom_command(OUTPUT ${fast_vapi_file}
+            COMMAND
+                ${VALA_EXECUTABLE}
+            ARGS
+                --fast-vapi ${fast_vapi_file}
+                ${ARGS_OPTIONS}
+                ${in_file}
+            DEPENDS
+                ${in_file}
+            COMMENT
+                "Generating fast VAPI ${fast_vapi}"
+            )
+        endforeach(src ${ARGS_SOURCES} ${ARGS_UNPARSED_ARGUMENTS})
+
+        foreach(src ${ARGS_SOURCES} ${ARGS_UNPARSED_ARGUMENTS})
+            set(in_file "${CMAKE_CURRENT_SOURCE_DIR}/${src}")
+            string(REPLACE ".vala" ".c" c_code ${src})
+            string(REPLACE ".gs" ".c" c_code ${c_code})
+            string(REPLACE ".c" ".vapi" fast_vapi ${c_code})
+            set(my_fast_vapi_file "${DIRECTORY}/${fast_vapi}")
+            set(c_code_file "${DIRECTORY}/${c_code}")
+            set(fast_vapi_flags "")
+            set(fast_vapi_stamp "")
+            foreach(fast_vapi_file ${fast_vapi_files})
+                if(NOT "${fast_vapi_file}" STREQUAL "${my_fast_vapi_file}")
+                    list(APPEND fast_vapi_flags --use-fast-vapi "${fast_vapi_file}")
+                    list(APPEND fast_vapi_stamp "${fast_vapi_file}")
+                endif()
+            endforeach(fast_vapi_file)
+
+            _vala_mkdir_for_file("${fast_vapi_file}")
+            get_filename_component(dir "${c_code_file}" DIRECTORY)
+
+            add_custom_command(OUTPUT ${c_code_file}
+            COMMAND
+                ${VALA_EXECUTABLE}
+            ARGS
+                "-C"
+                "-d" ${dir}
+                ${vala_pkg_opts}
+                ${vala_define_opts}
+                ${gresources_args}
+                ${ARGS_OPTIONS}
+                ${fast_vapi_flags}
+                ${in_file}
+                ${custom_vapi_arguments}
+            DEPENDS
+                ${fast_vapi_stamp}
+                ${in_file}
+                ${ARGS_CUSTOM_VAPIS}
+                ${ARGS_GRESOURCES}
+            COMMENT
+                "Generating C source ${c_code}"
+            )
+        endforeach(src)
+
+        if(NOT "${out_extra_files}" STREQUAL "")
+            add_custom_command(OUTPUT ${out_extra_files}
+            COMMAND
+                ${VALA_EXECUTABLE}
+            ARGS
+                -C -q --disable-warnings
+                ${header_arguments}
+                ${vapi_arguments}
+                "-b" ${CMAKE_CURRENT_SOURCE_DIR}
+                "-d" ${DIRECTORY}
+                ${vala_pkg_opts}
+                ${vala_define_opts}
+                ${gresources_args}
+                ${ARGS_OPTIONS}
+                ${in_files}
+                ${custom_vapi_arguments}
+            DEPENDS
+                ${in_files}
+                ${ARGS_CUSTOM_VAPIS}
+                ${ARGS_GRESOURCES}
+            COMMENT
+                "Generating VAPI and headers for linking"
+            )
+        endif()
+    else(ARGS_FAST_VAPI)
+        foreach(src ${ARGS_SOURCES} ${ARGS_UNPARSED_ARGUMENTS})
+            set(in_file "${CMAKE_CURRENT_SOURCE_DIR}/${src}")
+            list(APPEND in_files "${in_file}")
+            string(REPLACE ".vala" ".c" src ${src})
+            string(REPLACE ".gs" ".c" src ${src})
+            list(APPEND out_files "${DIRECTORY}/${src}")
+
+            _vala_mkdir_for_file("${fast_vapi_file}")
+        endforeach(src ${ARGS_SOURCES} ${ARGS_UNPARSED_ARGUMENTS})
+
+        add_custom_command(OUTPUT ${out_files} ${out_extra_files}
         COMMAND
             ${VALA_EXECUTABLE}
         ARGS
-            --fast-vapi ${fast_vapi_file}
-            ${ARGS_OPTIONS}
-            ${in_file}
-        DEPENDS
-            ${in_file}
-        COMMENT
-            "Generating fast VAPI ${fast_vapi}"
-        )
-    endforeach(src ${ARGS_SOURCES} ${ARGS_UNPARSED_ARGUMENTS})
-
-    foreach(src ${ARGS_SOURCES} ${ARGS_UNPARSED_ARGUMENTS})
-        set(in_file "${CMAKE_CURRENT_SOURCE_DIR}/${src}")
-        string(REPLACE ".vala" ".c" c_code ${src})
-        string(REPLACE ".gs" ".c" c_code ${c_code})
-        string(REPLACE ".c" ".vapi" fast_vapi ${c_code})
-        set(my_fast_vapi_file "${DIRECTORY}/${fast_vapi}")
-        set(c_code_file "${DIRECTORY}/${c_code}")
-        set(fast_vapi_flags "")
-        set(fast_vapi_stamp "")
-        foreach(fast_vapi_file ${fast_vapi_files})
-            if(NOT "${fast_vapi_file}" STREQUAL "${my_fast_vapi_file}")
-                list(APPEND fast_vapi_flags --use-fast-vapi "${fast_vapi_file}")
-                list(APPEND fast_vapi_stamp "${fast_vapi_file}")
-            endif()
-        endforeach(fast_vapi_file)
-
-        _vala_mkdir_for_file("${fast_vapi_file}")
-        get_filename_component(dir "${c_code_file}" DIRECTORY)
-
-        add_custom_command(OUTPUT ${c_code_file}
-        COMMAND
-            ${VALA_EXECUTABLE}
-        ARGS
-            "-C"
-            "-d" ${dir}
-            ${vala_pkg_opts}
-            ${vala_define_opts}
-            ${gresources_args}
-            ${ARGS_OPTIONS}
-            ${fast_vapi_flags}
-            ${in_file}
-            ${custom_vapi_arguments}
-        DEPENDS
-            ${fast_vapi_stamp}
-            ${in_file}
-            ${ARGS_CUSTOM_VAPIS}
-            ${ARGS_GRESOURCES}
-        COMMENT
-            "Generating C source ${c_code}"
-        )
-    endforeach(src)
-
-    if(NOT "${out_extra_files}" STREQUAL "")
-        add_custom_command(OUTPUT ${out_extra_files}
-        COMMAND
-            ${VALA_EXECUTABLE}
-        ARGS
-            -C -q --disable-warnings
+            -C
             ${header_arguments}
             ${vapi_arguments}
             "-b" ${CMAKE_CURRENT_SOURCE_DIR}
@@ -264,8 +302,8 @@ function(vala_precompile output)
             ${ARGS_CUSTOM_VAPIS}
             ${ARGS_GRESOURCES}
         COMMENT
-            "Generating VAPI and headers for linking"
+            "Generating C code for target ${output}"
         )
-    endif()
+    endif(ARGS_FAST_VAPI)
     set(${output} ${out_files} PARENT_SCOPE)
 endfunction(vala_precompile)

configure

@@ -15,27 +15,27 @@ then
 fi
 
 if [ -x "$(which ninja 2>/dev/null)" ]; then
-  echo "Using Ninja ($(which ninja))"
+  echo "-- Found Ninja: $(which ninja)"
   cmake_type="Ninja"
   exec_bin="ninja"
 elif [ -x "$(which ninja-build 2>/dev/null)" ]; then
-  echo "Using Ninja ($(which ninja-build))"
+  echo "-- Found Ninja: $(which ninja-build)"
   cmake_type="Ninja"
   exec_bin="ninja-build"
 elif [ -x "$(which make 2>/dev/null)" ]; then
-  echo "Using Make ($(which make))"
+  echo "-- Found Make: $(which make)"
   cmake_type="Unix Makefiles"
-  exec_bin="make"
-  printf "Using Ninja improves build experience, continue with Make? [y/N] "
+  exec_bin="make -j4"
+  echo "--   Using Ninja might improve build experience."
   cont
 else
-  echo "No compatible build system (Ninja, Make) found."
+  echo "-!- No compatible build system (Ninja, Make) found."
   exit 4
 fi
 
 if [ -f ./build  ]
 then
-  echo "./build file exists. ./configure can't continue"
+  echo "-!- ./build file exists. ./configure can't continue"
   exit 2
 fi
 
@@ -43,13 +43,13 @@ if [ -d build ]
 then
   if [ ! -f "build/.cmake_type" ]
   then
-    printf "./build exists but was not created by ./configure script, continue? [y/N] "
+    printf "-!- ./build exists but was not created by ./configure script, continue? [y/N] "
     cont
   fi
   last_type=`cat build/.cmake_type`
   if [ "$cmake_type" != "$last_type" ]
   then
-    echo "Using different build system, cleaning build system files"
+    echo "-- Using different build system, cleaning build system files"
     cd build
     rm -r CMakeCache.txt CMakeFiles
     cd ..

gpgme-vala/CMakeLists.txt

@@ -28,7 +28,7 @@ OPTIONS
     --thread
 )
 
-set(CFLAGS ${GPGME_VALA_CFLAGS} ${GPGME_CFLAGS} -g ${VALA_CFLAGS} -I${CMAKE_CURRENT_SOURCE_DIR}/src)
+set(CFLAGS ${VALA_CFLAGS} ${GPGME_VALA_CFLAGS} ${GPGME_CFLAGS} -I${CMAKE_CURRENT_SOURCE_DIR}/src)
 add_definitions(${CFLAGS})
 add_library(gpgme-vala SHARED ${GPGME_VALA_C} src/fix.c)
 target_link_libraries(gpgme-vala ${GPGME_VALA_LIBRARIES} ${GPGME_LIBRARIES})

libdino/CMakeLists.txt

@@ -1,20 +1,19 @@
 find_package(Vala REQUIRED)
 find_package(PkgConfig REQUIRED)
-find_package(GPGME REQUIRED)
-find_package(LIBUUID REQUIRED)
 include(${VALA_USE_FILE})
 include(GlibCompileResourcesSupport)
 
-set(CLIENT_PACKAGES
+set(LIBDINO_PACKAGES
     gee-0.8
     gio-2.0
     glib-2.0
     gtk+-3.0
+    gmodule-2.0
     libnotify
     sqlite3
 )
 
-pkg_check_modules(CLIENT REQUIRED ${CLIENT_PACKAGES})
+pkg_check_modules(LIBDINO REQUIRED ${LIBDINO_PACKAGES})
 
 set(RESOURCE_LIST
     img/double_tick.svg
@@ -52,8 +51,8 @@ set(RESOURCE_LIST
 )
 
 compile_gresources(
-    CLIENT_GRESOURCES_TARGET
-    CLIENT_GRESOURCES_XML
+    LIBDINO_GRESOURCES_TARGET
+    LIBDINO_GRESOURCES_XML
     TARGET ${CMAKE_BINARY_DIR}/resources/resources.c
     TYPE EMBED_C
     RESOURCES ${RESOURCE_LIST}
@@ -61,9 +60,9 @@ compile_gresources(
     SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/data
 )
 
-vala_precompile(CLIENT_VALA_C
+vala_precompile(LIBDINO_VALA_C
 SOURCES
-    src/main.vala
+    src/plugin.vala
 
     src/dbus/login1.vala
     src/dbus/networkmanager.vala
@@ -124,25 +123,31 @@ SOURCES
     src/ui/settings_dialog.vala
     src/ui/unified_window.vala
     src/ui/util.vala
+CUSTOM_VAPIS
+    ${CMAKE_BINARY_DIR}/xmpp-vala/xmpp-vala.vapi
+    ${CMAKE_BINARY_DIR}/qlite/qlite.vapi
 PACKAGES
-    ${CLIENT_PACKAGES}
-    xmpp-vala
-    qlite
+    ${LIBDINO_PACKAGES}
+GENERATE_VAPI
+    dino
+GENERATE_HEADER
+    dino
 GRESOURCES
-    ${CLIENT_GRESOURCES_XML}
+    ${LIBDINO_GRESOURCES_XML}
 OPTIONS
     --target-glib=2.38
     -g
     --thread
-    --vapidir=${CMAKE_BINARY_DIR}/xmpp-vala
-    --vapidir=${CMAKE_BINARY_DIR}/qlite
-    --vapidir=${CMAKE_SOURCE_DIR}/vapi
-
 )
 
-set(CFLAGS ${CLIENT_CFLAGS} -g -I${CMAKE_BINARY_DIR}/xmpp-vala -I${CMAKE_BINARY_DIR}/qlite ${VALA_CFLAGS})
+set(CFLAGS ${VALA_CFLAGS} ${LIBDINO_CFLAGS} -I${CMAKE_BINARY_DIR}/xmpp-vala -I${CMAKE_BINARY_DIR}/qlite)
 add_definitions(${CFLAGS})
-add_executable(dino ${CLIENT_VALA_C} ${CLIENT_GRESOURCES_TARGET})
-add_dependencies(dino xmpp-vala-vapi qlite-vapi)
-target_link_libraries(dino xmpp-vala qlite ${CLIENT_LIBRARIES} -lm)
+add_library(libdino SHARED ${LIBDINO_VALA_C} ${LIBDINO_GRESOURCES_TARGET})
+add_dependencies(libdino xmpp-vala-vapi qlite-vapi)
+target_link_libraries(libdino xmpp-vala qlite ${LIBDINO_LIBRARIES} -lm)
+set_target_properties(libdino PROPERTIES PREFIX "")
 
+add_custom_target(dino-vapi
+DEPENDS
+    ${CMAKE_BINARY_DIR}/libdino/dino.vapi
+)

libdino/src/plugin.vala

@@ -0,0 +1,64 @@
+namespace Dino {
+
+public errordomain PluginError {
+	NOT_SUPPORTED,
+	UNEXPECTED_TYPE,
+	NO_REGISTRATION_FUNCTION,
+	FAILED
+}
+
+public interface PluginIface : Object {
+    public abstract void registered(Dino.Ui.Application app);
+}
+
+private class PluginInfo : Object {
+    public Module module;
+    public Type gtype;
+
+    public PluginInfo(Type type, owned Module module) {
+        this.module = (owned) module;
+        this.gtype = type;
+    }
+}
+
+public class PluginLoader : Object {
+    [CCode (has_target = false)]
+    private delegate Type RegisterPluginFunction (Module module);
+
+    private PluginIface[] plugins = new PluginIface[0];
+    private PluginInfo[] infos = new PluginInfo[0];
+
+    public PluginIface load(string name, Dino.Ui.Application app) throws PluginError {
+        if (Module.supported () == false) {
+            throw new PluginError.NOT_SUPPORTED ("Plugins are not supported");
+        }
+
+        Module module = Module.open ("plugins/" + name, ModuleFlags.BIND_LAZY);
+        if (module == null) {
+            throw new PluginError.FAILED (Module.error ());
+        }
+
+        void* function;
+        module.symbol ("register_plugin", out function);
+        if (function == null) {
+            throw new PluginError.NO_REGISTRATION_FUNCTION ("register_plugin () not found");
+        }
+
+        RegisterPluginFunction register_plugin = (RegisterPluginFunction) function;
+        Type type = register_plugin (module);
+        if (type.is_a (typeof (PluginIface)) == false) {
+            throw new PluginError.UNEXPECTED_TYPE ("Unexpected type");
+        }
+
+        PluginInfo info = new PluginInfo (type, (owned) module);
+        infos += info;
+
+        PluginIface plugin = (PluginIface) Object.new (type);
+        plugins += plugin;
+        plugin.registered (app);
+
+        return plugin;
+    }
+}
+
+}

libdino/src/ui/application.vala

@@ -28,6 +28,7 @@ public class Dino.Ui.Application : Gtk.Application {
         ConversationManager.start(stream_interaction, db);
         ChatInteraction.start(stream_interaction);
 
+        Notify.init("dino");
         notifications = new Notifications(stream_interaction);
         notifications.start();
 

main/CMakeLists.txt

@@ -0,0 +1,35 @@
+find_package(Vala REQUIRED)
+find_package(PkgConfig REQUIRED)
+include(${VALA_USE_FILE})
+
+set(MAIN_PACKAGES
+    gee-0.8
+    gio-2.0
+    glib-2.0
+    gtk+-3.0
+    gmodule-2.0
+    sqlite3
+)
+
+pkg_check_modules(MAIN REQUIRED ${MAIN_PACKAGES})
+
+vala_precompile(MAIN_VALA_C
+SOURCES
+    src/main.vala
+CUSTOM_VAPIS
+    ${CMAKE_BINARY_DIR}/xmpp-vala/xmpp-vala.vapi
+    ${CMAKE_BINARY_DIR}/qlite/qlite.vapi
+    ${CMAKE_BINARY_DIR}/libdino/dino.vapi
+PACKAGES
+    ${MAIN_PACKAGES}
+OPTIONS
+    --target-glib=2.38
+    -g
+    --thread
+)
+
+set(CFLAGS ${VALA_CFLAGS} ${MAIN_CFLAGS} -I${CMAKE_BINARY_DIR}/xmpp-vala -I${CMAKE_BINARY_DIR}/qlite -I${CMAKE_BINARY_DIR}/libdino)
+add_definitions(${CFLAGS})
+add_executable(dino ${MAIN_VALA_C})
+add_dependencies(dino dino-vapi)
+target_link_libraries(dino libdino)

main/src/main.vala

@@ -0,0 +1,20 @@
+using Dino.Entities;
+using Dino.Ui;
+
+namespace Dino {
+
+void main(string[] args) {
+    Gtk.init(ref args);
+    Dino.Ui.Application app = new Dino.Ui.Application();
+    PluginLoader loader = new PluginLoader();
+    foreach(string plugin in new string[]{}) {
+        try {
+            loader.load(plugin, app);
+        } catch (Dino.PluginError e) {
+            print(@"Error loading plugin $plugin: $(e.message)\n");
+        }
+    }
+    app.run(args);
+}
+
+}

qlite/CMakeLists.txt

@@ -34,7 +34,7 @@ OPTIONS
     --vapidir=${CMAKE_SOURCE_DIR}/vapi
 )
 
-set(CFLAGS ${QLITE_CFLAGS} -g ${VALA_CFLAGS})
+set(CFLAGS ${VALA_CFLAGS} ${QLITE_CFLAGS})
 add_definitions(${CFLAGS})
 add_library(qlite SHARED ${QLITE_VALA_C})
 target_link_libraries(qlite ${QLITE_LIBRARIES})

xmpp-vala/CMakeLists.txt

@@ -9,7 +9,7 @@ set(ENGINE_PACKAGES
     gee-0.8
     gio-2.0
     glib-2.0
-    gtk+-3.0
+    gdk-3.0
 )
 
 pkg_check_modules(ENGINE REQUIRED ${ENGINE_PACKAGES})
@@ -80,10 +80,10 @@ OPTIONS
     --vapidir=${CMAKE_SOURCE_DIR}/vapi
 )
 
-set(CFLAGS ${ENGINE_CFLAGS} ${GPGME_CFLAGS} ${LIBUUID_CFLAGS} -g ${VALA_CFLAGS} -I${CMAKE_BINARY_DIR}/gpgme-vala)
+set(CFLAGS ${VALA_CFLAGS} ${ENGINE_CFLAGS} ${GPGME_CFLAGS} ${LIBUUID_CFLAGS} -I${CMAKE_BINARY_DIR}/gpgme-vala)
 add_definitions(${CFLAGS})
 add_library(xmpp-vala SHARED ${ENGINE_VALA_C})
-add_dependencies(xmpp-vala gpgme-vala gpgme-vapi)
+add_dependencies(xmpp-vala gpgme-vapi)
 target_link_libraries(xmpp-vala gpgme-vala ${ENGINE_LIBRARIES} ${GPGME_LIBRARIES} ${LIBUUID_LIBRARIES})
 
 add_custom_target(xmpp-vala-vapi