Fix installer offline docs extraction

Align text network meter columns

.github/workflows/appimage-build.yml

@@ -62,6 +62,11 @@ jobs:
           rm -rf AppDir
           DESTDIR="${PWD}/AppDir" ninja -C build install
 
+      - name: Verify offline docs install
+        run: |
+          set -eux
+          test -f AppDir/usr/share/doc/zoitechat/html/index.html
+
       - name: Bundle scripting runtimes in AppDir
         run: |
           set -eux
@@ -86,11 +91,21 @@ jobs:
             cp -a /usr/lib/x86_64-linux-gnu/python3/dist-packages AppDir/usr/lib/x86_64-linux-gnu/python3/
           fi
 
+          if [ -d "/usr/lib/x86_64-linux-gnu/perl-base" ]; then
+            install -d AppDir/usr/lib/x86_64-linux-gnu
+            cp -a /usr/lib/x86_64-linux-gnu/perl-base AppDir/usr/lib/x86_64-linux-gnu/
+          fi
+
           if [ -d "/usr/lib/x86_64-linux-gnu/perl" ]; then
             install -d AppDir/usr/lib/x86_64-linux-gnu
             cp -a /usr/lib/x86_64-linux-gnu/perl AppDir/usr/lib/x86_64-linux-gnu/
           fi
 
+          if [ -d "/usr/lib/x86_64-linux-gnu/perl5" ]; then
+            install -d AppDir/usr/lib/x86_64-linux-gnu
+            cp -a /usr/lib/x86_64-linux-gnu/perl5 AppDir/usr/lib/x86_64-linux-gnu/
+          fi
+
           if [ -d "/usr/share/perl" ]; then
             install -d AppDir/usr/share
             cp -a /usr/share/perl AppDir/usr/share/
@@ -100,6 +115,10 @@ jobs:
             install -d AppDir/usr/share
             cp -a /usr/share/perl5 AppDir/usr/share/
           fi
+
+          perl -MFile::Spec -e 'print "Build host File::Spec: $INC{\"File/Spec.pm\"}\n"'
+          find AppDir/usr -path '*/File/Spec.pm' -print -quit | grep -q .
+
           if compgen -G '/usr/lib/x86_64-linux-gnu/libpython3*.so*' > /dev/null; then
             install -d AppDir/usr/lib/x86_64-linux-gnu
             cp -a /usr/lib/x86_64-linux-gnu/libpython3*.so* AppDir/usr/lib/x86_64-linux-gnu/
@@ -162,7 +181,7 @@ jobs:
 
           APPDIR="${APPDIR:-$(dirname "$(readlink -f "$0")")}"
 
-          export PATH="${PATH:-/usr/bin:/bin}:$APPDIR/usr/bin"
+          export PATH="$APPDIR/usr/bin:${PATH:-/usr/bin:/bin}"
           export LD_LIBRARY_PATH="$APPDIR/usr/lib:$APPDIR/usr/lib/x86_64-linux-gnu:${LD_LIBRARY_PATH:-}"
           export XDG_DATA_DIRS="$APPDIR/usr/share:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
           export GTK_EXE_PREFIX="$APPDIR/usr"
@@ -211,6 +230,23 @@ jobs:
 
           unset GTK_MODULES
 
+          perl5lib_entries=""
+          for dir in \
+            "$APPDIR/usr/lib/x86_64-linux-gnu/perl-base" \
+            "$APPDIR/usr/lib/x86_64-linux-gnu/perl"/* \
+            "$APPDIR/usr/lib/x86_64-linux-gnu/perl5"/* \
+            "$APPDIR/usr/share/perl"/* \
+            "$APPDIR/usr/share/perl5"
+          do
+            if [ -d "$dir" ]; then
+              perl5lib_entries="${perl5lib_entries:+$perl5lib_entries:}$dir"
+            fi
+          done
+
+          if [ -n "$perl5lib_entries" ]; then
+            export PERL5LIB="$perl5lib_entries${PERL5LIB:+:$PERL5LIB}"
+          fi
+
           export PYTHONHOME="$APPDIR/usr"
           python_stdlib_dir="$(find "$APPDIR/usr/lib" -maxdepth 1 -type d -name 'python3.*' | head -n 1 || true)"
           pythonpath_entries=""
@@ -256,7 +292,6 @@ jobs:
           EOF
           chmod +x AppRun
 
-
           VERSION="$(git describe --tags --always)"
 
           ./linuxdeploy-x86_64.AppImage \

.github/workflows/flatpak-build.yml

@@ -37,6 +37,12 @@ jobs:
           cache: false
           restore-cache: false
 
+      - name: Verify offline docs install
+        run: |
+          flatpak --user install -y zoitechat.flatpak
+          app_dir="$(flatpak info --user --show-location net.zoite.Zoitechat)"
+          test -f "$app_dir/files/share/zoitechat/offline-docs/index.html"
+
       - name: Upload Flatpak Bundle
         id: upload_flatpak
         uses: actions/upload-artifact@v6

.github/workflows/windows-build.yml

@@ -65,8 +65,8 @@ jobs:
           Download-WithRetry -Url https://github.com/jrsoftware/issrc/releases/download/is-6_7_1/innosetup-6.7.1.exe -OutFile deps\innosetup-unicode.exe
           & deps\innosetup-unicode.exe /VERYSILENT | Out-Null
 
-          Download-WithRetry -Url https://github.com/ZoiteChat/gvsbuild/releases/download/zoitechat-2.18.0-pre1/GTK3_Gvsbuild_zoitechat-2.18.0-pre1_${{ matrix.platform }}.7z -OutFile deps\gtk-${{ matrix.arch }}.7z
-          & 7z.exe x deps\gtk-${{ matrix.arch }}.7z -oC:\gtk-build\gtk\x64\release
+          Download-WithRetry -Url https://github.com/ZoiteChat/gvsbuild/releases/download/zoitechat-2.18.1/GTK3_Gvsbuild_zoitechat-2.18.1_x64.zip -OutFile deps\gtk-${{ matrix.arch }}.zip
+          Expand-Archive -LiteralPath deps\gtk-${{ matrix.arch }}.zip -DestinationPath C:\gtk-build\gtk\x64\release -Force
 
           Download-WithRetry -Url https://repo.msys2.org/mingw/x86_64/mingw-w64-x86_64-hicolor-icon-theme-0.18-1-any.pkg.tar.zst -OutFile deps\hicolor-icon-theme.pkg.tar.zst
           python -c "import tarfile,zstandard,pathlib;archive=pathlib.Path(r'deps\\hicolor-icon-theme.pkg.tar.zst');target=pathlib.Path(r'C:\\gtk-build\\gtk\\x64\\release');dctx=zstandard.ZstdDecompressor();f=archive.open('rb');reader=dctx.stream_reader(f);tf=tarfile.open(fileobj=reader,mode='r|');[tf.extract(m,path=target) for m in tf if m.name.startswith('mingw64/share/icons/hicolor/')];tf.close();reader.close();f.close()"
@@ -132,6 +132,16 @@ jobs:
           msbuild win32\zoitechat.sln /m /verbosity:minimal /p:Configuration=Release /p:Platform=${{ matrix.platform }}
         shell: cmd
 
+      - name: Verify offline docs install
+        run: |
+          if not exist "..\zoitechat-build\${{ matrix.platform }}\rel\offline-docs\index.html" exit /b 1
+          findstr /C:"Name:" "..\zoitechat-build\${{ matrix.platform }}\bin\zoitechat.iss" | findstr /C:"docs"
+          findstr /C:"OFFLINEDOCSURL" "..\zoitechat-build\${{ matrix.platform }}\bin\zoitechat.iss"
+          findstr /C:"Source:" "..\zoitechat-build\${{ matrix.platform }}\bin\zoitechat.iss" | findstr /C:"offline-docs"
+          findstr /C:"offline-docs.tar.gz" "..\zoitechat-build\${{ matrix.platform }}\bin\zoitechat.iss"
+          findstr /C:"InstallOfflineDocs" "..\zoitechat-build\${{ matrix.platform }}\bin\zoitechat.iss"
+        shell: cmd
+
       - name: Preparing Artifacts
         run: |
           move ..\zoitechat-build\${{ matrix.platform }}\ZoiteChat-*.exe .\

changelog.rst

@@ -1,7 +1,28 @@
 ZoiteChat ChangeLog
 =================
 
+2.18.1 (2026-05-21)
+-------------------
+
+- Migrated D-Bus handling to GDBus.
+- Enabled mouse wheel channel switching by default and consumed handled tab wheel events.
+- Switched main panes to native GTK scrollbars.
+- Tightened userlist button and meter layout.
+- Made the native Windows file chooser modal.
+- Set the Windows AppUserModelID before GTK startup.
+- Updated Windows CI to use the new GTK3 bundle zip.
+- Updated Windows installer architecture checks to use x64-compatible detection.
+- Bumped the Flatpak Perl runtime to 5.42.2.
+- Fixed palette color reads to preserve base GTK state.
+- Fixed auto-replace whole-word matching.
+- Fixed checksum file stream cleanup.
+- Fixed byte handling in the Python console.
+- Guarded GTK drag-and-drop handlers against null windows.
+- Fixed size_t and integer handling issues.
+- Removed the Winamp plugin.
+
 2.18.0 (2026-04-20)
+-------------------
 
 - Added optional close buttons on tabs.
 - Added Ctrl+W to close tabs and Ctrl+Shift+T to reopen recently closed tabs.
@@ -19,6 +40,7 @@ ZoiteChat ChangeLog
 - Improved AppStream metainfo validation.
 
 2.18.0~pre6 (2026-03-30)
+------------------------
 
 - Applied app theme CSS to the menubar consistently across the app.
 - Restored horizontal separator lines in menus.

data/meson.build

@@ -7,3 +7,15 @@ if get_option('gtk-frontend')
   subdir('misc')
   subdir('man')
 endif
+
+offline_docs_url = get_option('offline-docs-url')
+offline_docs = custom_target('offline-docs',
+  output: 'offline-docs.stamp',
+  command: [find_program('python3'), files('misc/fetch_offline_docs.py'), offline_docs_url, '@OUTDIR@', meson.source_root()],
+  build_by_default: true,
+)
+meson.add_install_script(
+  files('misc/install_offline_docs.py'),
+  join_paths(meson.current_build_dir(), 'offline-docs'),
+  offline_docs_dir,
+)

data/misc/fetch_offline_docs.py

@@ -0,0 +1,89 @@
+#!/usr/bin/env python3
+
+import html
+import io
+import pathlib
+import shutil
+import sys
+import tarfile
+import tempfile
+import urllib.error
+import urllib.request
+
+
+url = sys.argv[1]
+out_dir = pathlib.Path(sys.argv[2])
+source_dir = pathlib.Path(sys.argv[3]) if len(sys.argv) > 3 else pathlib.Path.cwd()
+docs_dir = out_dir / "offline-docs"
+
+if docs_dir.exists():
+    shutil.rmtree(docs_dir)
+docs_dir.mkdir(parents=True, exist_ok=True)
+
+
+def write_source_docs() -> None:
+    parts = [
+        '<!doctype html><html><head><meta charset="utf-8">'
+        "<title>ZoiteChat Documentation</title></head><body>"
+        "<h1>ZoiteChat Documentation</h1>"
+    ]
+
+    for name in ("readme.md", "troubleshooting.md", "changelog.rst"):
+        path = source_dir / name
+        if path.exists():
+            parts.append(
+                f"<h2>{html.escape(name)}</h2>"
+                f"<pre>{html.escape(path.read_text(encoding='utf-8', errors='replace'))}</pre>"
+            )
+
+    parts.append("</body></html>")
+    (docs_dir / "index.html").write_text("\n".join(parts), encoding="utf-8")
+
+
+def safe_extract(tar: tarfile.TarFile, target: pathlib.Path) -> None:
+    target = target.resolve()
+
+    for member in tar.getmembers():
+        member_path = (target / member.name).resolve()
+        if not str(member_path).startswith(str(target) + "/"):
+            raise tarfile.TarError(f"unsafe archive path: {member.name}")
+
+    tar.extractall(target)
+
+
+def copy_index_tree(extracted_dir: pathlib.Path) -> bool:
+    indexes = sorted(extracted_dir.rglob("index.html"))
+    if not indexes:
+        return False
+
+    root = indexes[0].parent
+    for item in root.iterdir():
+        dest = docs_dir / item.name
+        if item.is_dir():
+            shutil.copytree(item, dest, dirs_exist_ok=True)
+        else:
+            shutil.copy2(item, dest)
+
+    return (docs_dir / "index.html").exists()
+
+
+if url:
+    try:
+        with urllib.request.urlopen(url, timeout=30) as response:
+            data = response.read()
+
+        with tempfile.TemporaryDirectory() as tmp:
+            extract_dir = pathlib.Path(tmp)
+            with tarfile.open(fileobj=io.BytesIO(data), mode="r:gz") as tar:
+                safe_extract(tar, extract_dir)
+
+            if not copy_index_tree(extract_dir):
+                write_source_docs()
+
+    except (OSError, tarfile.TarError, urllib.error.URLError) as error:
+        print(f"offline docs download failed: {error}", file=sys.stderr)
+        write_source_docs()
+else:
+    write_source_docs()
+
+(out_dir / "offline-docs.stamp").write_text("ok", encoding="utf-8")

data/misc/install_offline_docs.py

@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+import os
+import pathlib
+import shutil
+import sys
+
+src = pathlib.Path(sys.argv[1])
+dest = pathlib.Path(os.environ['MESON_INSTALL_DESTDIR_PREFIX']) / sys.argv[2]
+if not (src / 'index.html').exists():
+    sys.exit(0)
+if dest.exists():
+    shutil.rmtree(dest)
+shutil.copytree(src, dest)

data/misc/net.zoite.Zoitechat.appdata.xml.in

@@ -29,6 +29,28 @@
     <id>zoitechat.desktop</id>
   </provides>
 <releases>
+<release date="2026-05-21" version="2.18.1">
+  <description>
+    <ul>
+      <li>Migrated D-Bus handling to GDBus.</li>
+      <li>Enabled mouse wheel channel switching by default and consumed handled tab wheel events.</li>
+      <li>Switched main panes to native GTK scrollbars.</li>
+      <li>Tightened userlist button and meter layout.</li>
+      <li>Made the native Windows file chooser modal.</li>
+      <li>Set the Windows AppUserModelID before GTK startup.</li>
+      <li>Updated Windows CI to use the new GTK3 bundle zip.</li>
+      <li>Updated Windows installer architecture checks to use x64-compatible detection.</li>
+      <li>Bumped the Flatpak Perl runtime to 5.42.2.</li>
+      <li>Fixed palette color reads to preserve base GTK state.</li>
+      <li>Fixed auto-replace whole-word matching.</li>
+      <li>Fixed checksum file stream cleanup.</li>
+      <li>Fixed byte handling in the Python console.</li>
+      <li>Guarded GTK drag-and-drop handlers against null windows.</li>
+      <li>Fixed size_t and integer handling issues.</li>
+      <li>Removed the Winamp plugin.</li>
+    </ul>
+  </description>
+</release>
 <release date="2026-04-20" version="2.18.0">
   <description>
     <p>Tabs and navigation:</p>

flatpak/net.zoite.Zoitechat.json

@@ -56,7 +56,9 @@
         "-Ddbus-service-use-appid=true",
         "-Dwith-perl=perl",
         "-Dwith-python=python3",
-        "-Dwith-lua=lua"
+        "-Dwith-lua=lua",
+        "-Doffline-docs-package=net.zoite.Zoitechat",
+        "-Doffline-docs-dir=share/zoitechat/offline-docs"
       ],
       "build-options": {
         "cflags": "-Wno-error=missing-include-dirs"

meson.build

@@ -1,5 +1,5 @@
 project('zoitechat', 'c',
-  version: '2.18.0',
+  version: '2.18.1',
   meson_version: '>= 0.55.0',
   default_options: [
     'c_std=c17',
@@ -32,8 +32,18 @@ config_h = configuration_data()
 config_h.set_quoted('PACKAGE_VERSION', meson.project_version())
 config_h.set_quoted('PACKAGE_NAME', meson.project_name())
 config_h.set_quoted('GETTEXT_PACKAGE', 'zoitechat')
+offline_docs_package = get_option('offline-docs-package')
+if offline_docs_package == ''
+  offline_docs_package = meson.project_name()
+endif
+offline_docs_dir = get_option('offline-docs-dir')
+if offline_docs_dir == ''
+  offline_docs_dir = join_paths(get_option('datadir'), 'doc', offline_docs_package, 'html')
+endif
 config_h.set_quoted('LOCALEDIR', join_paths(get_option('prefix'),
                                  get_option('datadir'), 'locale'))
+config_h.set_quoted('ZOITECHATDOCDIR', join_paths(get_option('prefix'),
+                                 offline_docs_dir))
 config_h.set10('ENABLE_NLS', true)
 
 # Optional features

meson_options.txt

@@ -62,3 +62,13 @@ option('with-upd', type: 'boolean',
 option('with-perl-legacy-api', type: 'boolean', value: false,
   description: 'Enables the legacy IRC perl module for compatibility with old scripts'
 )
+
+option('offline-docs-url', type: 'string', value: 'https://dl.zoitechat.org/offlinedocs/zoitechat-docs-html-2.18.1.tar.gz',
+  description: 'URL for offline documentation archive (tar.gz)'
+)
+option('offline-docs-package', type: 'string', value: '',
+  description: 'Package or app id to use under the installed documentation directory'
+)
+option('offline-docs-dir', type: 'string', value: '',
+  description: 'Installed offline documentation directory relative to prefix'
+)

packaging/manjaro/PKGBUILD

@@ -66,4 +66,5 @@ build() {
 
 package() {
   meson install -C build --destdir "$pkgdir"
+  test -f "$pkgdir/usr/share/doc/zoitechat/html/index.html"
 }

plugins/fishlim/fish.c

@@ -91,27 +91,13 @@ static const signed char fish_unbase64[256] = {
 #include <openssl/provider.h>
 static OSSL_PROVIDER *legacy_provider;
 static OSSL_PROVIDER *default_provider;
-static OSSL_LIB_CTX *ossl_ctx;
 #endif
 
 int fish_init(void)
 {
 #if OPENSSL_VERSION_NUMBER >= 0x30000000L
-    ossl_ctx = OSSL_LIB_CTX_new();
-    if (!ossl_ctx)
-        return 0;
-
-    legacy_provider = OSSL_PROVIDER_load(ossl_ctx, "legacy");
-    if (!legacy_provider) {
-        fish_deinit();
-        return 0;
-    }
-
-    default_provider = OSSL_PROVIDER_load(ossl_ctx, "default");
-    if (!default_provider) {
-        fish_deinit();
-        return 0;
-    }
+    legacy_provider = OSSL_PROVIDER_load(NULL, "legacy");
+    default_provider = OSSL_PROVIDER_load(NULL, "default");
 #endif
     return 1;
 }
@@ -129,10 +115,6 @@ void fish_deinit(void)
         default_provider = NULL;
     }
 
-    if (ossl_ctx) {
-        OSSL_LIB_CTX_free(ossl_ctx);
-        ossl_ctx = NULL;
-    }
 #endif
 }
 
@@ -278,7 +260,9 @@ char *fish_cipher(const char *plaintext, size_t plaintext_len, const char *key,
         }
 
 #if OPENSSL_VERSION_NUMBER >= 0x30000000L
-        cipher = EVP_CIPHER_fetch(ossl_ctx, "BF-CBC", NULL);
+        cipher = EVP_CIPHER_fetch(NULL, "BF-CBC", NULL);
+        if (!cipher)
+            cipher = (EVP_CIPHER *) EVP_bf_cbc();
 #else
         cipher = (EVP_CIPHER *) EVP_bf_cbc();
 #endif
@@ -286,7 +270,9 @@ char *fish_cipher(const char *plaintext, size_t plaintext_len, const char *key,
     } else if (mode == EVP_CIPH_ECB_MODE) {
 
 #if OPENSSL_VERSION_NUMBER >= 0x30000000L
-        cipher = EVP_CIPHER_fetch(ossl_ctx, "BF-ECB", NULL);
+        cipher = EVP_CIPHER_fetch(NULL, "BF-ECB", NULL);
+        if (!cipher)
+            cipher = (EVP_CIPHER *) EVP_bf_ecb();
 #else
         cipher = (EVP_CIPHER *) EVP_bf_ecb();
 #endif

plugins/fishlim/plugin_zoitechat.c

@@ -421,7 +421,7 @@ static int handle_keyx_notice(char *word[], char *word_eol[], void *userdata) {
             zoitechat_commandf(ph, "quote NOTICE %s :DH1080_FINISH %s%s", sender, pub_key, (mode == FISH_CBC_MODE) ? " CBC" : "");
             g_free(pub_key);
         } else {
-            zoitechat_print(ph, "Failed to generate keys");
+            zoitechat_printf(ph, "Failed to generate keys");
             goto cleanup;
         }
     } else if (!strcmp (dh_message, "DH1080_FINISH")) {
@@ -446,7 +446,7 @@ static int handle_keyx_notice(char *word[], char *word_eol[], void *userdata) {
         zoitechat_printf(ph, "Stored new key for %s (%s)", sender, fish_modes[mode]);
         g_free(secret_key);
     } else {
-        zoitechat_print(ph, "Failed to create secret key!");
+        zoitechat_printf(ph, "Failed to create secret key!");
     }
 
 cleanup:
@@ -548,7 +548,7 @@ static int handle_keyx(char *word[], char *word_eol[], void *userdata) {
     }
 
     if ((query_ctx && ctx_type != 3) || (!query_ctx && !irc_is_query(target))) {
-        zoitechat_print(ph, "You can only exchange keys with individuals");
+        zoitechat_printf(ph, "You can only exchange keys with individuals");
         return ZOITECHAT_EAT_ALL;
     }
 
@@ -560,7 +560,7 @@ static int handle_keyx(char *word[], char *word_eol[], void *userdata) {
 
         g_free(pub_key);
     } else {
-        zoitechat_print(ph, "Failed to generate keys");
+        zoitechat_printf(ph, "Failed to generate keys");
     }
 
     return ZOITECHAT_EAT_ALL;
@@ -577,7 +577,7 @@ static int handle_crypt_topic(char *word[], char *word_eol[], void *userdata) {
     GSList *encrypted_list;
 
     if (!*topic) {
-        zoitechat_print(ph, usage_topic);
+        zoitechat_printf(ph, "%s", usage_topic);
         return ZOITECHAT_EAT_ALL;
     }
 
@@ -624,7 +624,7 @@ static int handle_crypt_notice(char *word[], char *word_eol[], void *userdata) {
     GSList *encrypted_list, *encrypted_item;
 
     if (!*target || !*notice) {
-        zoitechat_print(ph, usage_notice);
+        zoitechat_printf(ph, "%s", usage_notice);
         return ZOITECHAT_EAT_ALL;
     }
 
@@ -676,7 +676,7 @@ static int handle_crypt_msg(char *word[], char *word_eol[], void *userdata) {
     GSList *encrypted_list, *encrypted_item;
 
     if (!*target || !*message) {
-        zoitechat_print(ph, usage_msg);
+        zoitechat_printf(ph, "%s", usage_msg);
         return ZOITECHAT_EAT_ALL;
     }
 
@@ -805,11 +805,15 @@ int zoitechat_plugin_init(zoitechat_plugin *plugin_handle,
     zoitechat_hook_server_attrs(ph, "TOPIC", ZOITECHAT_PRI_NORM, handle_incoming, NULL);
     zoitechat_hook_server_attrs(ph, "332", ZOITECHAT_PRI_NORM, handle_incoming, NULL);
 
-    if (!fish_init())
+    if (!fish_init()) {
+        zoitechat_printf(ph, "FiSHLiM failed to initialize crypto backend");
         return 0;
+    }
 
-    if (!dh1080_init())
+    if (!dh1080_init()) {
+        zoitechat_printf(ph, "FiSHLiM failed to initialize DH1080");
         return 0;
+    }
 
     pending_exchanges = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
 

plugins/python/python.py

@@ -19,7 +19,7 @@ else:
 if not hasattr(sys, 'argv'):
     sys.argv = ['<zoitechat>']
 
-VERSION = b'2.18.0'
+VERSION = b'2.18.1'
 PLUGIN_NAME = ffi.new('char[]', b'Python')
 PLUGIN_DESC = ffi.new('char[]', b'Python %d.%d scripting interface' % (sys.version_info[0], sys.version_info[1]))
 PLUGIN_VERSION = ffi.new('char[]', VERSION)
@@ -320,9 +320,9 @@ def _on_say_command(word, word_eol, userdata):
         return 0
 
     try:
-        python = _cstr(word_eol[1])
+        python = __decode(_cstr(word_eol[1]))
     except Exception:
-        python = b''
+        python = ''
 
     if not python:
         return 1

readme.md

@@ -31,12 +31,19 @@
 <br />
 
 
-ZoiteChat is an HexChat based IRC client for Windows and UNIX-like operating systems.  
-See [IRCHelp.org](http://irchelp.org) for information about IRC in general.  
-For more information on ZoiteChat please read our [documentation](https://docs.zoitechat.org/):
-- [Downloads](https://zoitechat.org/download)
+ZoiteChat is a GTK3 IRC client based on HexChat, available for Windows and UNIX-like operating systems.  
 
-- [Troubleshooting](troubleshooting.md)
+Features include HexChat-compatible Python, Perl and Lua scripting support, a plugin API,
+multiple server/channel windows, spell checking, multiple authentication methods including SASL,
+and customizable notifications.
+
+See [IRCHelp.org](http://irchelp.org) for information about IRC in general.  
+
+For more information on ZoiteChat:
+
+- [Main Documentation](https://docs.zoitechat.org/) and [FAQ](https://docs.zoitechat.org/en/latest/faq.html)
+
+- [Downloads](https://zoitechat.org/download.php)
 
 
 ---

src/common/cfgfiles.c

@@ -447,6 +447,7 @@ const struct prefs vars[] =
 	{"gui_tab_layout", P_OFFINT (hex_gui_tab_layout), TYPE_INT},
 	{"gui_tab_closebuttons", P_OFFINT (hex_gui_tab_closebuttons), TYPE_BOOL},
 	{"gui_tab_middleclose", P_OFFINT (hex_gui_tab_middleclose), TYPE_BOOL},
+	{"gui_mouse_scroll_speed", P_OFFINT (hex_gui_mouse_scroll_speed), TYPE_INT},
 	{"gui_tab_newtofront", P_OFFINT (hex_gui_tab_newtofront), TYPE_INT},
 	{"gui_tab_pos", P_OFFINT (hex_gui_tab_pos), TYPE_INT},
 	{"gui_tab_scrollchans", P_OFFINT (hex_gui_tab_scrollchans), TYPE_BOOL},
@@ -548,6 +549,10 @@ const struct prefs vars[] =
 #endif
 	{"net_bind_host", P_OFFSET (hex_net_bind_host), TYPE_STR},
 	{"net_ping_timeout", P_OFFINT (hex_net_ping_timeout), TYPE_INT, zoitechat_reinit_timers},
+	{"net_lag_check", P_OFFINT (hex_net_lag_check), TYPE_INT, zoitechat_reinit_timers},
+	{"net_keepalive_idle", P_OFFINT (hex_net_keepalive_idle), TYPE_INT},
+	{"net_keepalive_interval", P_OFFINT (hex_net_keepalive_interval), TYPE_INT},
+	{"net_keepalive_count", P_OFFINT (hex_net_keepalive_count), TYPE_INT},
 	{"net_proxy_auth", P_OFFINT (hex_net_proxy_auth), TYPE_BOOL},
 	{"net_proxy_host", P_OFFSET (hex_net_proxy_host), TYPE_STR},
 	{"net_proxy_pass", P_OFFSET (hex_net_proxy_pass), TYPE_STR},
@@ -783,6 +788,7 @@ load_default_config(void)
 	prefs.hex_gui_tab_server = 1;
 	prefs.hex_gui_tab_sort = 1;
 	prefs.hex_gui_tab_scrollchans = 1;
+	prefs.hex_gui_mouse_scroll_speed = 10;
 	prefs.hex_gui_topicbar = 1;
 	prefs.hex_gui_transparency = 255;
 	prefs.hex_gui_tray = 1;
@@ -858,6 +864,10 @@ load_default_config(void)
 	prefs.hex_irc_ban_type = 1;
 	prefs.hex_irc_join_delay = 5;
 	prefs.hex_net_ping_timeout = 60;
+	prefs.hex_net_lag_check = 60;
+	prefs.hex_net_keepalive_idle = 60;
+	prefs.hex_net_keepalive_interval = 20;
+	prefs.hex_net_keepalive_count = 3;
 	prefs.hex_net_reconnect_delay = 10;
 	prefs.hex_notify_timeout = 15;
 	prefs.hex_text_max_indent = 256;
@@ -1168,8 +1178,11 @@ set_showval (session *sess, const struct prefs *var, char *tbuf)
 	switch (var->type)
 	{
 		case TYPE_STR:
-			sprintf (tbuf + len, "\0033:\017 %s\n", (char *) &prefs + var->offset);
-			break;
+		{
+			const char *value = (char *) &prefs + var->offset;
+			sprintf (tbuf + len, "\0033:\017 %s\n", value ? value : "");
+		}
+		break;
 		case TYPE_INT:
 			sprintf (tbuf + len, "\0033:\017 %d\n", *((int *) &prefs + var->offset));
 			break;

src/common/network.c

@@ -34,6 +34,9 @@
 
 #ifndef WIN32
 #include <unistd.h>
+#ifdef HAVE_NETINET_TCP_H
+#include <netinet/tcp.h>
+#endif
 #endif
 
 #define WANTSOCKET
@@ -43,6 +46,9 @@
 
 #define NETWORK_PRIVATE
 #include "network.h"
+#include "zoitechat.h"
+
+extern struct zoitechatprefs prefs;
 
 #define RAND_INT(n) ((int)(rand() / (RAND_MAX + 1.0) * (n)))
 
@@ -58,6 +64,27 @@ net_set_socket_options (int sok)
 	setsockopt (sok, SOL_SOCKET, SO_REUSEADDR, (char *) &sw, sizeof (sw));
 	sw = 1;
 	setsockopt (sok, SOL_SOCKET, SO_KEEPALIVE, (char *) &sw, sizeof (sw));
+#ifdef TCP_KEEPIDLE
+	{
+		int keepidle = prefs.hex_net_keepalive_idle;
+		if (keepidle > 0)
+			setsockopt (sok, IPPROTO_TCP, TCP_KEEPIDLE, (char *) &keepidle, sizeof (keepidle));
+	}
+#endif
+#ifdef TCP_KEEPINTVL
+	{
+		int keepintvl = prefs.hex_net_keepalive_interval;
+		if (keepintvl > 0)
+			setsockopt (sok, IPPROTO_TCP, TCP_KEEPINTVL, (char *) &keepintvl, sizeof (keepintvl));
+	}
+#endif
+#ifdef TCP_KEEPCNT
+	{
+		int keepcnt = prefs.hex_net_keepalive_count;
+		if (keepcnt > 0)
+			setsockopt (sok, IPPROTO_TCP, TCP_KEEPCNT, (char *) &keepcnt, sizeof (keepcnt));
+	}
+#endif
 }
 
 char *

src/common/outbound.c

@@ -4397,7 +4397,7 @@ void
 check_special_chars (char *cmd, int do_ascii) /* check for %X */
 {
 	int occur = 0;
-	int len = strlen (cmd);
+	size_t len = strlen (cmd);
 	char *buf, *utf;
 	char tbuf[4];
 	int i = 0, j = 0;

src/common/proto-irc.c

@@ -1017,7 +1017,7 @@ process_named_msg (session *sess, char *type, char *word[], char *word_eol[],
 	char *account;
 	char ip[128], nick[NICKLEN];
 	char *text, *ex;
-	int len = strlen (type);
+	size_t len = strlen (type);
 
 	/* fill in the "ip" and "nick" buffers */
 	ex = strchr (word[1], '!');

src/common/sysinfo/win32/backend.c

@@ -22,6 +22,7 @@
 
 #include <ctype.h>
 #include <inttypes.h>
+#include <limits.h>
 #include <stdarg.h>
 #include <stdbool.h>
 #include <stdint.h>
@@ -74,6 +75,18 @@ typedef struct
 static bool string_builder_init (StringBuilder *builder);
 static void string_builder_free (StringBuilder *builder);
 static bool string_builder_append (StringBuilder *builder, const char *text);
+static int size_to_int (size_t value);
+
+static int
+size_to_int (size_t value)
+{
+	if (value > (size_t) INT_MAX)
+	{
+		return INT_MAX;
+	}
+
+	return (int) value;
+}
 
 char *
 sysinfo_get_cpu (void)
@@ -511,6 +524,7 @@ static char *read_hdd_info (IWbemClassObject *object)
 static char *bstr_to_utf8 (BSTR bstr)
 {
 	int utf8_len;
+	int wide_len;
 	char *utf8;
 
 	if (bstr == NULL)
@@ -518,7 +532,8 @@ static char *bstr_to_utf8 (BSTR bstr)
 		return NULL;
 	}
 
-	utf8_len = WideCharToMultiByte (CP_UTF8, 0, bstr, SysStringLen (bstr), NULL, 0, NULL, NULL);
+	wide_len = size_to_int ((size_t) SysStringLen (bstr));
+	utf8_len = WideCharToMultiByte (CP_UTF8, 0, bstr, wide_len, NULL, 0, NULL, NULL);
 	if (utf8_len <= 0)
 	{
 		return NULL;
@@ -530,7 +545,7 @@ static char *bstr_to_utf8 (BSTR bstr)
 		return NULL;
 	}
 
-	if (WideCharToMultiByte (CP_UTF8, 0, bstr, SysStringLen (bstr), utf8, utf8_len, NULL, NULL) <= 0)
+	if (WideCharToMultiByte (CP_UTF8, 0, bstr, wide_len, utf8, utf8_len, NULL, NULL) <= 0)
 	{
 		free (utf8);
 		return NULL;

src/common/url.c

@@ -321,7 +321,7 @@ url_check_line (char *buf)
 	for (i = 0; i < ARRAY_SIZE (commands); i++)
 	{
 		char *cmd = commands[i];
-		int len = strlen (cmd);
+		size_t len = strlen (cmd);
 
 		if (strncmp (cmd, po, len) == 0)
 		{

src/common/util.c

@@ -98,7 +98,7 @@ path_part (char *file, char *path, int pathlen)
 char *				/* like strstr(), but nocase */
 nocasestrstr (const char *s, const char *wanted)
 {
-	register const int len = strlen (wanted);
+	register const size_t len = strlen (wanted);
 
 	if (len == 0)
 		return (char *)s;

src/common/zoitechat.c

@@ -379,6 +379,7 @@ lag_check (void)
 	char tbuf[128];
 	time_t now = time (0);
 	time_t lag;
+	time_t ping_age;
 
 	tim = make_ping_time ();
 
@@ -388,7 +389,7 @@ lag_check (void)
 		if (serv->connected && serv->end_of_motd)
 		{
 			lag = now - serv->ping_recv;
-			if (prefs.hex_net_ping_timeout != 0 && lag > prefs.hex_net_ping_timeout && lag > 0)
+			if (serv->lag_sent && prefs.hex_net_ping_timeout != 0 && lag > prefs.hex_net_ping_timeout && lag > 0)
 			{
 				sprintf (tbuf, "%" G_GINT64_FORMAT, (gint64) lag);
 				EMIT_SIGNAL (XP_TE_PINGTIMEOUT, serv->server_session, tbuf, NULL,
@@ -398,11 +399,11 @@ lag_check (void)
 			}
 			else
 			{
-				g_snprintf (tbuf, sizeof (tbuf), "LAG%lu", tim);
-				serv->p_ping (serv, "", tbuf);
-				
-				if (!serv->lag_sent)
+				ping_age = now - serv->ping_recv;
+				if (!serv->lag_sent && prefs.hex_net_lag_check > 0 && ping_age >= prefs.hex_net_lag_check)
 				{
+					g_snprintf (tbuf, sizeof (tbuf), "LAG%lu", tim);
+					serv->p_ping (serv, "", tbuf);
 					serv->lag_sent = tim;
 					fe_set_lag (serv, -1);
 				}
@@ -525,7 +526,7 @@ zoitechat_reinit_timers (void)
 	if ((prefs.hex_net_ping_timeout != 0 || prefs.hex_gui_lagometer)
 	    && lag_check_tag == 0)
 	{
-		lag_check_tag = fe_timeout_add_seconds (30, zoitechat_lag_check, NULL);
+		lag_check_tag = fe_timeout_add_seconds (1, zoitechat_lag_check, NULL);
 	}
 	else if ((!prefs.hex_net_ping_timeout && !prefs.hex_gui_lagometer)
 					 && lag_check_tag != 0)

src/common/zoitechat.h

@@ -267,6 +267,7 @@ struct zoitechatprefs
 	int hex_gui_tab_layout;
 	int hex_gui_tab_closebuttons;
 	int hex_gui_tab_middleclose;
+	int hex_gui_mouse_scroll_speed;
 	int hex_gui_tab_newtofront;
 	int hex_gui_tab_pos;
 	int hex_gui_tab_small;
@@ -289,6 +290,10 @@ struct zoitechatprefs
 	int hex_irc_join_delay;
 	int hex_irc_notice_pos;
 	int hex_net_ping_timeout;
+	int hex_net_lag_check;
+	int hex_net_keepalive_idle;
+	int hex_net_keepalive_interval;
+	int hex_net_keepalive_count;
 	int hex_net_proxy_port;
 	int hex_net_proxy_type;				/* 0=disabled, 1=wingate 2=socks4, 3=socks5, 4=http */
 	int hex_net_proxy_use;				/* 0=all 1=IRC_ONLY 2=DCC_ONLY */

src/fe-gtk/chanlist.c

@@ -452,7 +452,7 @@ void
 fe_add_chan_list (server *serv, char *chan, char *users, char *topic)
 {
 	chanlistrow *next_row;
-	int len = strlen (chan) + 1;
+	size_t len = strlen (chan) + 1;
 
 	/* we allocate the struct and channel string in one go */
 	next_row = g_malloc (sizeof (chanlistrow) + len);

src/fe-gtk/chanview-tabs.c

@@ -305,12 +305,14 @@ static gboolean
 tab_scroll_cb (GtkWidget *widget, GdkEventScroll *event, gpointer cv)
 {
 	int direction = cv_scroll_direction (event);
+	int i;
 
 	if (prefs.hex_gui_tab_scrollchans)
 	{
 		if (direction != 0)
 		{
-			mg_switch_page (1, direction);
+			for (i = 0; i < cv_scroll_step_count (); i++)
+				mg_switch_page (1, direction);
 			return TRUE;
 		}
 	}
@@ -318,12 +320,14 @@ tab_scroll_cb (GtkWidget *widget, GdkEventScroll *event, gpointer cv)
 	{
 		if (direction < 0)
 		{
-			tab_scroll_left_up_clicked (widget, cv);
+			for (i = 0; i < cv_scroll_step_count (); i++)
+				tab_scroll_left_up_clicked (widget, cv);
 			return TRUE;
 		}
 		else if (direction > 0)
 		{
-			tab_scroll_right_down_clicked (widget, cv);
+			for (i = 0; i < cv_scroll_step_count (); i++)
+				tab_scroll_right_down_clicked (widget, cv);
 			return TRUE;
 		}
 	}

src/fe-gtk/chanview-tree.c

@@ -112,9 +112,11 @@ cv_tree_scroll_event_cb (GtkWidget *widget, GdkEventScroll *event, gpointer user
 	if (prefs.hex_gui_tab_scrollchans)
 	{
 		int direction = cv_scroll_direction (event);
+		int i;
 
 		if (direction != 0)
-			mg_switch_page (1, direction);
+			for (i = 0; i < cv_scroll_step_count (); i++)
+				mg_switch_page (1, direction);
 
 		return direction != 0;
 	}

src/fe-gtk/chanview.c

@@ -126,6 +126,15 @@ cv_scroll_direction (GdkEventScroll *event)
 	}
 }
 
+static int
+cv_scroll_step_count (void)
+{
+	int speed = prefs.hex_gui_mouse_scroll_speed;
+	if (speed < 1)
+		speed = 1;
+	return (speed + 9) / 10;
+}
+
 
 /* ======= TABS ======= */
 

src/fe-gtk/fe-gtk.c

@@ -124,6 +124,25 @@ create_msg_dialog (gchar *title, gchar *message)
 
 static char *win32_argv0_dir;
 
+static void
+win32_set_appusermodelid (void)
+{
+	HMODULE shell32;
+	HRESULT (WINAPI *set_appid) (PCWSTR);
+
+	shell32 = GetModuleHandleW (L"shell32.dll");
+	if (!shell32)
+		shell32 = LoadLibraryW (L"shell32.dll");
+	if (!shell32)
+		return;
+
+	set_appid = (HRESULT (WINAPI *) (PCWSTR)) GetProcAddress (shell32, "SetCurrentProcessExplicitAppUserModelID");
+	if (!set_appid)
+		return;
+
+	set_appid (L"ZoiteChat.Desktop.Notify");
+}
+
 static void
 win32_set_gsettings_schema_dir (void)
 {
@@ -422,6 +441,7 @@ fe_args (int argc, char *argv[])
 
 #ifdef WIN32
 	win32_set_gsettings_schema_dir ();
+	win32_set_appusermodelid ();
 	win32_configure_pixbuf_loaders ();
 
 	/* this is mainly for irc:// URL handling. When windows calls us from */

src/fe-gtk/fe-gtk.vcxproj

@@ -44,6 +44,7 @@ REM zoitechat.rc needs to be in UCS-2 or Resource Compiler will complain
 powershell "Get-Content -Encoding UTF8 '$(ZoiteChatLib)zoitechat.rc.utf8' | Out-File '$(ZoiteChatLib)zoitechat.rc'; Remove-Item '$(ZoiteChatLib)zoitechat.rc.utf8'"
 "$(DepsRoot)\bin\glib-compile-resources.exe" --generate-header --manual-register --sourcedir "$(DataDir)" --target "$(ZoiteChatLib)resources.h" "$(DataDir)zoitechat.gresource.xml"
 "$(DepsRoot)\bin\glib-compile-resources.exe" --generate-source --manual-register --sourcedir "$(DataDir)" --target "$(ZoiteChatLib)resources.c" "$(DataDir)zoitechat.gresource.xml"
+"$(Python3Path)\python.exe" "$(DataDir)misc\fetch_offline_docs.py" "$(OfflineDocsUrl)" "$(ZoiteChatRel)." "$(SolutionDir).."
       ]]></Command>
       <Message>Build zoitechat.rc and gresource file</Message>
     </PreBuildEvent>

src/fe-gtk/gtkutil.c

@@ -272,13 +272,6 @@ gtkutil_apply_palette (GtkWidget *widget, const GdkRGBA *bg, const GdkRGBA *fg,
 	theme_manager_apply_palette_widget (widget, bg, fg, font_desc);
 }
 
-static void
-gtkutil_file_req_destroy (GtkWidget * wid, struct file_req *freq)
-{
-	freq->callback (freq->userdata, NULL);
-	g_free (freq);
-}
-
 static void
 gtkutil_check_file (char *filename, struct file_req *freq)
 {
@@ -390,26 +383,6 @@ gtkutil_file_req_done_chooser (GtkFileChooser *fs, struct file_req *freq)
 
 }
 
-static void
-gtkutil_file_req_done (GtkWidget * wid, struct file_req *freq)
-{
-	gtkutil_file_req_done_chooser (GTK_FILE_CHOOSER (freq->dialog), freq);
-	gtk_widget_destroy (freq->dialog);
-}
-
-static void
-gtkutil_file_req_response (GtkWidget *dialog, gint res, struct file_req *freq)
-{
-	if (res == GTK_RESPONSE_ACCEPT)
-	{
-		gtkutil_file_req_done (dialog, freq);
-		return;
-	}
-
-	gtk_widget_destroy (dialog);
-}
-
-#ifdef WIN32
 static gboolean
 gtkutil_native_dialog_unref_idle (gpointer native)
 {
@@ -423,27 +396,16 @@ gtkutil_native_file_req_response (GtkNativeDialog *dialog, gint res, struct file
 	if (res == GTK_RESPONSE_ACCEPT)
 		gtkutil_file_req_done_chooser (GTK_FILE_CHOOSER (dialog), freq);
 
-	/* Match gtk dialog flow by always sending NULL to indicate completion. */
 	freq->callback (freq->userdata, NULL);
 	g_free (freq);
-
-	/*
-	 * Defer unref until idle to avoid disposing the native chooser while
-	 * still in the button-release signal stack on Windows.
-	 */
 	g_idle_add (gtkutil_native_dialog_unref_idle, dialog);
 }
-#endif
 
 void
 gtkutil_file_req (GtkWindow *parent, const char *title, void *callback, void *userdata, char *filter, char *extensions,
 						int flags)
 {
 	struct file_req *freq;
-	GtkWidget *dialog;
-	GtkFileFilter *filefilter;
-	char *token;
-	char *tokenbuffer;
 	const char *xdir;
 	GtkWindow *effective_parent = parent;
 
@@ -453,7 +415,6 @@ gtkutil_file_req (GtkWindow *parent, const char *title, void *callback, void *us
 
 	xdir = get_xdir ();
 
-#ifdef WIN32
 	{
 		GtkFileChooserNative *native = gtk_file_chooser_native_new (
 			title,
@@ -522,110 +483,14 @@ gtkutil_file_req (GtkWindow *parent, const char *title, void *callback, void *us
 
 		g_signal_connect (native, "response",
 						G_CALLBACK (gtkutil_native_file_req_response), freq);
+
+		if (flags & FRF_MODAL)
+			gtk_native_dialog_set_modal (GTK_NATIVE_DIALOG (native), TRUE);
+
 		gtk_native_dialog_show (GTK_NATIVE_DIALOG (native));
 		return;
 	}
-#endif
 
-	if (flags & FRF_WRITE)
-	{
-		dialog = gtk_file_chooser_dialog_new (title, NULL,
-												GTK_FILE_CHOOSER_ACTION_SAVE,
-												_("_Cancel"), GTK_RESPONSE_CANCEL,
-												_("_Save"), GTK_RESPONSE_ACCEPT,
-												NULL);
-
-		if (!(flags & FRF_NOASKOVERWRITE))
-			gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog), TRUE);
-	}
-	else
-		dialog = gtk_file_chooser_dialog_new (title, NULL,
-												GTK_FILE_CHOOSER_ACTION_OPEN,
-												_("_Cancel"), GTK_RESPONSE_CANCEL,
-												_("_Open"), GTK_RESPONSE_ACCEPT,
-												NULL);
-
-	theme_manager_attach_window (dialog);
-
-	if (filter && filter[0] && (flags & FRF_FILTERISINITIAL))
-	{
-		if (flags & FRF_WRITE)
-		{
-			char temp[1024];
-			path_part (filter, temp, sizeof (temp));
-			if (temp[0] && g_file_test (temp, G_FILE_TEST_IS_DIR))
-				gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (dialog), temp);
-			else if (xdir && xdir[0] && g_file_test (xdir, G_FILE_TEST_IS_DIR))
-				gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (dialog), xdir);
-			gtk_file_chooser_set_current_name (GTK_FILE_CHOOSER (dialog), file_part (filter));
-		}
-		else
-		{
-			if (g_file_test (filter, G_FILE_TEST_IS_DIR))
-				gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (dialog), filter);
-			else if (xdir && xdir[0] && g_file_test (xdir, G_FILE_TEST_IS_DIR))
-				gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (dialog), xdir);
-		}
-	}
-	else if (!(flags & FRF_RECENTLYUSED))
-	{
-		if (xdir && xdir[0] && g_file_test (xdir, G_FILE_TEST_IS_DIR))
-			gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (dialog), xdir);
-	}
-
-	if (flags & FRF_MULTIPLE)
-		gtk_file_chooser_set_select_multiple (GTK_FILE_CHOOSER (dialog), TRUE);
-	if (flags & FRF_CHOOSEFOLDER)
-		gtk_file_chooser_set_action (GTK_FILE_CHOOSER (dialog), GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER);
-
-	if ((flags & FRF_EXTENSIONS || flags & FRF_MIMETYPES) && extensions != NULL)
-	{
-		filefilter = gtk_file_filter_new ();
-		tokenbuffer = g_strdup (extensions);
-		token = strtok (tokenbuffer, ";");
-
-		while (token != NULL)
-		{
-			if (flags & FRF_EXTENSIONS)
-				gtk_file_filter_add_pattern (filefilter, token);
-			else
-				gtk_file_filter_add_mime_type (filefilter, token);
-			token = strtok (NULL, ";");
-		}
-
-		g_free (tokenbuffer);
-		gtk_file_chooser_set_filter (GTK_FILE_CHOOSER (dialog), filefilter);
-	}
-
-	if (xdir && xdir[0] && g_file_test (xdir, G_FILE_TEST_IS_DIR))
-	{
-		GError *shortcut_error = NULL;
-
-		gtk_file_chooser_add_shortcut_folder (GTK_FILE_CHOOSER (dialog), xdir, &shortcut_error);
-		if (shortcut_error)
-			g_error_free (shortcut_error);
-	}
-	freq = g_new (struct file_req, 1);
-	freq->dialog = dialog;
-	freq->flags = flags;
-	freq->callback = callback;
-	freq->userdata = userdata;
-
-	g_signal_connect (G_OBJECT (dialog), "response",
-							G_CALLBACK (gtkutil_file_req_response), freq);
-	g_signal_connect (G_OBJECT (dialog), "destroy",
-						   G_CALLBACK (gtkutil_file_req_destroy), (gpointer) freq);
-
-	if (effective_parent)
-		gtk_window_set_transient_for (GTK_WINDOW (dialog), effective_parent);
-
-	if (flags & FRF_MODAL)
-	{
-		g_assert (effective_parent);
-		gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
-	}
-
-	gtk_widget_show (dialog);
 }
 
 static gboolean
@@ -972,7 +837,7 @@ gtkutil_copy_to_clipboard (GtkWidget *widget, GdkAtom selection,
 	win = gtk_widget_get_toplevel (GTK_WIDGET (widget));
 	if (gtk_widget_is_toplevel (win))
 	{
-		int len = strlen (str);
+		gint len = (gint) strlen (str);
 
 		if (selection)
 		{

src/fe-gtk/maingui.c

@@ -902,7 +902,12 @@ mg_windowstate_cb (GtkWindow *wid, GdkEventWindowState *event, gpointer userdata
 	if ((event->changed_mask & GDK_WINDOW_STATE_ICONIFIED) &&
 		 (event->new_window_state & GDK_WINDOW_STATE_ICONIFIED) &&
 		 prefs.hex_gui_tray_minimize && prefs.hex_gui_tray &&
-		 gtkutil_tray_icon_supported (wid))
+		 gtkutil_tray_icon_supported (wid)
+#ifndef WIN32
+		 )
+#else
+		 && !gtk_window_is_active (wid))
+#endif
 	{
 		tray_toggle_visibility (TRUE);
 	}
@@ -947,7 +952,8 @@ mg_windowstate_cb (GtkWindow *wid, GdkEventWindowState *event, gpointer userdata
         if (sess && sess->gui && GTK_IS_WIDGET (sess->gui->window))
                 gtk_widget_queue_draw (sess->gui->window);
 
-        menu_set_fullscreen (current_sess->gui, prefs.hex_gui_win_fullscreen);
+        if (current_sess && current_sess->gui)
+                menu_set_fullscreen (current_sess->gui, prefs.hex_gui_win_fullscreen);
 
 #ifdef G_OS_WIN32
 	mg_win32_allow_autohide_taskbar (wid, event);
@@ -2699,7 +2705,6 @@ mg_changui_destroy (session *sess)
                 /* it fixes: Gdk-CRITICAL **: gdk_colormap_get_screen: */
                 /*           assertion `GDK_IS_COLORMAP (cmap)' failed */
                 ret = sess->gui->window;
-                g_free (sess->gui);
                 sess->gui = NULL;
         }
         return ret;
@@ -2721,13 +2726,17 @@ mg_link_irctab (session *sess, int focus)
                 return;
         }
 
+        session_gui *old_gui;
+
         mg_unpopulate (sess);
+        old_gui = sess->gui;
         win = mg_changui_destroy (sess);
         mg_changui_new (sess, sess->res, 1, focus);
         /* the buffer is now attached to a different widget */
         ((xtext_buffer *)sess->res->buffer)->xtext = (GtkXText *)sess->gui->xtext;
         if (win)
                 gtk_widget_destroy (win);
+        g_free (old_gui);
 }
 
 void
@@ -3462,7 +3471,7 @@ mg_create_infoframe (GtkWidget *box)
 
         frame = gtk_frame_new (0);
         gtk_frame_set_shadow_type ((GtkFrame*)frame, GTK_SHADOW_OUT);
-        gtk_box_pack_start (GTK_BOX (box), frame, FALSE, TRUE, 0);
+        gtk_box_pack_start (GTK_BOX (box), frame, TRUE, TRUE, 0);
 
         hbox = mg_box_new (GTK_ORIENTATION_HORIZONTAL, FALSE, 0);
         gtk_container_add (GTK_CONTAINER (frame), hbox);
@@ -3483,7 +3492,7 @@ mg_create_meters (session_gui *gui, GtkWidget *parent_box)
 
         if ((prefs.hex_gui_lagometer & 2) || (prefs.hex_gui_throttlemeter & 2))
         {
-                infbox = mg_box_new (GTK_ORIENTATION_HORIZONTAL, FALSE, 0);
+                infbox = mg_box_new (GTK_ORIENTATION_HORIZONTAL, TRUE, 0);
                 gtk_box_pack_start (GTK_BOX (box), infbox, 0, 0, 0);
         }
 
@@ -4727,7 +4736,14 @@ mg_win32_filter (GdkXEvent *xevent, GdkEvent *event, gpointer data)
 			{
 				if (strcmp (command, "__WIN32_TASKBAR_TOGGLE__") == 0)
 				{
-					if (gtk_widget_get_visible (current_sess->gui->window))
+					GdkWindowState state = 0;
+					GdkWindow *gdk_window = gtk_widget_get_window (current_sess->gui->window);
+
+					if (gdk_window)
+						state = gdk_window_get_state (gdk_window);
+
+					if (gtk_widget_get_visible (current_sess->gui->window)
+						&& (state & GDK_WINDOW_STATE_ICONIFIED) == 0)
 						fe_ctrl_gui (current_sess, FE_GUI_ICONIFY, 0);
 					else
 						fe_ctrl_gui (current_sess, FE_GUI_SHOW, 0);
@@ -5241,9 +5257,14 @@ static void
 mg_handle_drop (GtkWidget *widget, int y, int *pos, int *other_pos)
 {
         int height;
+        GdkWindow *window;
         session_gui *gui = current_sess->gui;
 
-        height = gdk_window_get_height (gtk_widget_get_window (widget));
+        window = gtk_widget_get_window (widget);
+        if (!window)
+                return;
+
+        height = gdk_window_get_height (window);
 
         if (y < height / 2)
         {
@@ -5321,6 +5342,9 @@ mg_drag_begin_cb (GtkWidget *widget, GdkDragContext *context, gpointer userdata)
                 return FALSE;
 
         window = gtk_widget_get_window (widget);
+        if (!window)
+                return FALSE;
+
         width = gdk_window_get_width (window);
         height = gdk_window_get_height (window);
 
@@ -5398,11 +5422,16 @@ mg_drag_motion_cb (GtkWidget *widget, GdkDragContext *context, int x, int y, gui
                 width = allocation.width;
                 height = allocation.height;
                 window = gtk_widget_get_window (widget);
+                if (!window)
+                        return FALSE;
         }
         else
         {
                 ox = oy = 0;
                 window = gtk_widget_get_window (widget);
+                if (!window)
+                        return FALSE;
+
                 width = gdk_window_get_width (window);
                 height = gdk_window_get_height (window);
         }

src/fe-gtk/menu.c

@@ -1717,7 +1717,32 @@ menu_ctcpguiopen (void)
 static void
 menu_docs (GtkWidget *wid, gpointer none)
 {
-	fe_open_url ("https://docs.zoitechat.org/en/latest/");
+	GNetworkMonitor *monitor;
+	char *offline_docs;
+	gboolean online;
+
+	offline_docs = g_build_filename (get_xdir (), "offline-docs", "index.html", NULL);
+	if (g_access (offline_docs, R_OK) == 0)
+	{
+		fe_open_url (offline_docs);
+		g_free (offline_docs);
+		return;
+	}
+	g_free (offline_docs);
+	offline_docs = g_build_filename (ZOITECHATDOCDIR, "index.html", NULL);
+	if (g_access (offline_docs, R_OK) == 0)
+	{
+		fe_open_url (offline_docs);
+		g_free (offline_docs);
+		return;
+	}
+	g_free (offline_docs);
+	online = TRUE;
+	monitor = g_network_monitor_get_default ();
+	if (monitor)
+		online = g_network_monitor_get_network_available (monitor);
+	if (online)
+		fe_open_url ("https://docs.zoitechat.org/en/latest/");
 }
 
 /*static void
@@ -2309,7 +2334,7 @@ menu_reorder (GtkMenu *menu, GtkWidget *item, int pos)
 	if (pos < 0)	/* position offset from end/bottom */
 	{
 		GList *children = gtk_container_get_children (GTK_CONTAINER (menu));
-		int length = g_list_length (children);
+		gint length = (gint) g_list_length (children);
 
 		g_list_free (children);
 		gtk_menu_reorder_child (menu, item, (length + pos) - 1);
@@ -2381,7 +2406,7 @@ menu_add_sub (GtkWidget *menu, menu_entry *me)
 		if (pos < 0)	/* position offset from end/bottom */
 		{
 			GList *children = gtk_container_get_children (GTK_CONTAINER (menu));
-			int length = g_list_length (children);
+			gint length = (gint) g_list_length (children);
 
 			g_list_free (children);
 			pos = length + pos;

src/fe-gtk/plugin-tray.c

@@ -920,7 +920,10 @@ tray_menu_notify_cb (GObject *tray, GParamSpec *pspec, gpointer user_data)
 	{
 		if (!tray_backend_is_embedded ())
 		{
-			tray_restore_timer = g_timeout_add(500, (GSourceFunc)tray_menu_try_restore, NULL);
+			if (!tray_restore_timer)
+			{
+				tray_restore_timer = g_timeout_add (500, (GSourceFunc) tray_menu_try_restore, NULL);
+			}
 		}
 		else
 		{
@@ -936,9 +939,10 @@ tray_menu_notify_cb (GObject *tray, GParamSpec *pspec, gpointer user_data)
 static gboolean
 tray_menu_try_restore (void)
 {
-	tray_cleanup();
-	tray_init();
-	return TRUE;
+	tray_restore_timer = 0;
+	tray_cleanup ();
+	tray_init ();
+	return G_SOURCE_REMOVE;
 }
 
 static void

src/fe-gtk/setup.c

@@ -193,6 +193,7 @@ static const setting appearance_advanced_settings[] =
         {ST_HEADER,     N_("Advanced"),0,0,0},
         {ST_EFILE, N_ ("Background image:"), P_OFFSETNL (hex_text_background), 0, 0, sizeof prefs.hex_text_background},
         {ST_HSCALE, N_("Window opacity:"), P_OFFINTNL(hex_gui_transparency),0,0,0},
+        {ST_HSCALE, N_("Mouse wheel scroll speed (Slower ← → Faster):"), P_OFFINTNL(hex_gui_mouse_scroll_speed), 0, 0, 100},
 
         {ST_END, 0, 0, 0, 0, 0}
 };
@@ -582,6 +583,7 @@ static const setting advanced_settings[] =
         {ST_TOGGLE,     N_("Display lists in compact mode"), P_OFFINTNL(hex_gui_compact), N_("Use less spacing between user list/channel tree rows."), 0, 0},
         {ST_TOGGLE,     N_("Use server time if supported"), P_OFFINTNL(hex_irc_cap_server_time), N_("Display timestamps obtained from server if it supports the time-server extension."), 0, 0},
         {ST_TOGGLE,     N_("Automatically reconnect to servers on disconnect"), P_OFFINTNL(hex_net_auto_reconnect), 0, 0, 1},
+        {ST_NUMBER,     N_("Lag check interval:"), P_OFFINTNL(hex_net_lag_check), 0, (const char **)N_("seconds."), 9999},
         {ST_NUMBER,     N_("Auto reconnect delay:"), P_OFFINTNL(hex_net_reconnect_delay), 0, 0, 9999},
         {ST_NUMBER,     N_("Auto join delay:"), P_OFFINTNL(hex_irc_join_delay), 0, 0, 9999},
         {ST_MENU,       N_("Ban Type:"), P_OFFINTNL(hex_irc_ban_type), N_("Attempt to use this banmask when banning or quieting. (requires irc_who_join)"), bantypemenu, 0},
@@ -655,6 +657,11 @@ static const setting network_settings[] =
         {ST_MENU,       N_("Type:"), P_OFFINTNL(hex_net_proxy_type), 0, proxytypes, 0},
         {ST_MENU,       N_("Use proxy for:"), P_OFFINTNL(hex_net_proxy_use), 0, proxyuse, 0},
 
+        {ST_HEADER,     N_("Connection Health"), 0, 0, 0, 0},
+        {ST_NUMBER,     N_("TCP keepalive idle:"), P_OFFINTNL(hex_net_keepalive_idle), 0, (const char **)N_("seconds."), 7200},
+        {ST_NUMBER,     N_("TCP keepalive interval:"), P_OFFINTNL(hex_net_keepalive_interval), 0, (const char **)N_("seconds."), 600},
+        {ST_NUMBER,     N_("TCP keepalive probes:"), P_OFFINTNL(hex_net_keepalive_count), 0, 0, 20},
+
         {ST_HEADER,     N_("Proxy Authentication"), 0, 0, 0, 0},
         {ST_TOGGLE,     N_("Use authentication (HTTP or SOCKS5 only)"), P_OFFINTNL(hex_net_proxy_auth), 0, 0, 0},
         {ST_ENTRY,      N_("Username:"), P_OFFSETNL(hex_net_proxy_user), 0, 0, sizeof prefs.hex_net_proxy_user},
@@ -1364,7 +1371,7 @@ setup_entry_cb (GtkEntry *entry, setting *set)
         int size;
         int pos;
         unsigned char *p = (unsigned char*)gtk_entry_get_text (entry);
-        int len = strlen (p);
+        size_t len = strlen ((const char *) p);
 
         /* need to truncate? */
         if (len >= set->extra)
@@ -2180,7 +2187,7 @@ unslash (char *dir)
 {
         if (dir[0])
         {
-                int len = strlen (dir) - 1;
+                size_t len = strlen (dir) - 1;
 #ifdef WIN32
                 if (dir[len] == '/' || dir[len] == '\\')
 #else

src/fe-gtk/xtext.c

@@ -2300,6 +2300,12 @@ gtk_xtext_leave_notify (GtkWidget * widget, GdkEventCrossing * event)
 		xtext->hilight_ent = NULL;
 	}
 
+	if (xtext->tooltip_stamp_set)
+	{
+		gtk_widget_set_tooltip_text (widget, NULL);
+		xtext->tooltip_stamp_set = FALSE;
+	}
+
 	return FALSE;
 }
 
@@ -2466,7 +2472,7 @@ gtk_xtext_motion_notify (GtkWidget * widget, GdkEventMotion * event)
 	}
 
 	if (xtext->urlcheck_function == NULL)
-		return FALSE;
+		goto tooltip_check;
 
 	word_type = gtk_xtext_get_word_adjust (xtext, x, y, &word_ent, &offset, &len);
 	if (word_type > 0)
@@ -2504,6 +2510,46 @@ gtk_xtext_motion_notify (GtkWidget * widget, GdkEventMotion * event)
 		return FALSE;
 	}
 
+tooltip_check:
+	if (xtext->buffer->time_stamp && xtext->buffer->indent > 0 && x >= 0 && x < xtext->stamp_width)
+	{
+		textentry *ent = gtk_xtext_find_char (xtext, x, y, NULL, NULL);
+		if (ent && (!xtext->tooltip_stamp_set || xtext->tooltip_stamp != ent->stamp))
+		{
+			char tooltip[96];
+			strftime_utf8 (tooltip, sizeof (tooltip), "%Y-%m-%d", ent->stamp);
+			gtk_widget_set_tooltip_text (widget, tooltip);
+			xtext->tooltip_stamp = ent->stamp;
+			xtext->tooltip_stamp_set = TRUE;
+		}
+		if (ent)
+			return FALSE;
+	}
+	else if (!xtext->buffer->time_stamp && x >= xtext->buffer->indent)
+	{
+		textentry *ent = gtk_xtext_find_char (xtext, x, y, NULL, NULL);
+		if (ent && ent->stamp && (!xtext->tooltip_stamp_set || xtext->tooltip_stamp != ent->stamp))
+		{
+			char tooltip[128];
+			char date[64];
+			char *stamp_text;
+			strftime_utf8 (date, sizeof (date), "%Y-%m-%d", ent->stamp);
+			xtext_get_stamp_str (ent->stamp, &stamp_text);
+			g_snprintf (tooltip, sizeof (tooltip), "%s %s", date, stamp_text);
+			gtk_widget_set_tooltip_text (widget, tooltip);
+			g_free (stamp_text);
+			xtext->tooltip_stamp = ent->stamp;
+			xtext->tooltip_stamp_set = TRUE;
+		}
+		if (ent)
+			return FALSE;
+	}
+	else if (xtext->tooltip_stamp_set)
+	{
+		gtk_widget_set_tooltip_text (widget, NULL);
+		xtext->tooltip_stamp_set = FALSE;
+	}
+
 	gtk_xtext_leave_notify (widget, NULL);
 
 	return FALSE;
@@ -2938,19 +2984,41 @@ gtk_xtext_scroll (GtkWidget *widget, GdkEventScroll *event)
 {
 	GtkXText *xtext = GTK_XTEXT (widget);
 	gfloat new_value;
+	gfloat step;
+	gdouble dx;
+	gdouble dy;
+	int direction = 0;
+	int speed = prefs.hex_gui_mouse_scroll_speed;
 
-	if (event->direction == GDK_SCROLL_UP)		/* mouse wheel pageUp */
+	if (speed < 1)
+		speed = 1;
+	step = (xtext_adj_get_page_increment (xtext->adj) * speed) / 100.0f;
+
+	if (event->direction == GDK_SCROLL_SMOOTH &&
+		gdk_event_get_scroll_deltas ((GdkEvent *)event, &dx, &dy))
+	{
+		if (dy > 0)
+			direction = 1;
+		else if (dy < 0)
+			direction = -1;
+	}
+	else if (event->direction == GDK_SCROLL_UP)
+		direction = -1;
+	else if (event->direction == GDK_SCROLL_DOWN)
+		direction = 1;
+
+	if (direction < 0)
 	{
 		new_value = xtext_adj_get_value (xtext->adj) -
-			(xtext_adj_get_page_increment (xtext->adj) / 10);
+			step;
 		if (new_value < xtext_adj_get_lower (xtext->adj))
 			new_value = xtext_adj_get_lower (xtext->adj);
 		xtext_adj_set_value (xtext->adj, new_value);
 	}
-	else if (event->direction == GDK_SCROLL_DOWN)	/* mouse wheel pageDn */
+	else if (direction > 0)
 	{
 		new_value = xtext_adj_get_value (xtext->adj) +
-			(xtext_adj_get_page_increment (xtext->adj) / 10);
+			step;
 		if (new_value > (xtext_adj_get_upper (xtext->adj) -
 			xtext_adj_get_page_size (xtext->adj)))
 			new_value = xtext_adj_get_upper (xtext->adj) -
@@ -2958,7 +3026,7 @@ gtk_xtext_scroll (GtkWidget *widget, GdkEventScroll *event)
 		xtext_adj_set_value (xtext->adj, new_value);
 	}
 
-	return FALSE;
+	return direction != 0;
 }
 
 static void

src/fe-gtk/xtext.h

@@ -190,6 +190,8 @@ struct _GtkXText
 	textentry *hilight_ent;
 	int hilight_start;
 	int hilight_end;
+	time_t tooltip_stamp;
+	unsigned int tooltip_stamp_set:1;
 
 	guint16 fontwidth[128];	  /* each char's width, only the ASCII ones */
 

src/fe-text/fe-text.c

@@ -313,7 +313,8 @@ fe_print_text (struct session *sess, char *text, time_t stamp,
 			   gboolean no_activity)
 {
 	int dotime = FALSE;
-	int comma, k, i = 0, j = 0, len = strlen (text);
+	int comma, k, i = 0, j = 0;
+	size_t len = strlen (text);
 
 	unsigned char *newtext = g_malloc (len + 1024);
 

src/libenchant_win8/win8_provider.cpp

@@ -26,12 +26,19 @@
 #include <windows.h>
 
 #include <cstdlib>
+#include <climits>
 
 #include "typedef.h" // for ssize_t
 #include <enchant-provider.h>
 
 ENCHANT_PLUGIN_DECLARE ("win8")
 
+static int
+size_to_int (size_t value)
+{
+	return value > static_cast<size_t>(INT_MAX) ? INT_MAX : static_cast<int>(value);
+}
+
 static char *
 utf16_to_utf8 (const wchar_t * const str, bool from_bcp47)
 {
@@ -136,7 +143,7 @@ static void
 win8_dict_add_to_personal (EnchantDict *dict, const char *const word, size_t len)
 {
 	auto checker = static_cast<ISpellChecker*>(dict->user_data);
-	wchar_t *wword = utf8_to_utf16 (word, static_cast<int>(len), false);
+	wchar_t *wword = utf8_to_utf16 (word, size_to_int (len), false);
 
 	checker->Add (wword);
 	std::free (wword);
@@ -146,7 +153,7 @@ static void
 win8_dict_add_to_session (EnchantDict *dict, const char *const word, size_t len)
 {
 	auto checker = static_cast<ISpellChecker*>(dict->user_data);
-	wchar_t *wword = utf8_to_utf16 (word, static_cast<int>(len), false);
+	wchar_t *wword = utf8_to_utf16 (word, size_to_int (len), false);
 
 	checker->Ignore (wword);
 	std::free (wword);
@@ -156,7 +163,7 @@ static int
 win8_dict_check (EnchantDict *dict, const char *const word, size_t len)
 {
 	auto checker = static_cast<ISpellChecker*>(dict->user_data);
-	wchar_t *wword = utf8_to_utf16 (word, static_cast<int>(len), false);
+	wchar_t *wword = utf8_to_utf16 (word, size_to_int (len), false);
 	IEnumSpellingError *errors;
 	ISpellingError *error = nullptr;
 	HRESULT hr;
@@ -184,7 +191,7 @@ static char **
 win8_dict_suggest (EnchantDict *dict, const char *const word, size_t len, size_t *out_n_suggs)
 {
 	auto checker = static_cast<ISpellChecker*>(dict->user_data);
-	wchar_t *wword = utf8_to_utf16 (word, static_cast<int>(len), false);
+	wchar_t *wword = utf8_to_utf16 (word, size_to_int (len), false);
 	IEnumString *suggestions;
 	HRESULT hr;
 

win32/config.h.tt

@@ -9,6 +9,7 @@
 #define PACKAGE_VERSION "<#= [string]::Join('.', $versionParts) #>"
 #define ZOITECHATLIBDIR ".\\plugins"
 #define ZOITECHATSHAREDIR "."
+#define ZOITECHATDOCDIR "offline-docs"
 #define OLD_PERL
 #define GETTEXT_PACKAGE "zoitechat"
 #define PACKAGE_TARNAME "zoitechat-<#= [string]::Join('.', $versionParts) #>"

win32/installer/zoitechat.iss.tt

@@ -1,5 +1,6 @@
 #define APPNAM "ZoiteChat"
 #define APPVER "<#= [string]::Join('.', $versionParts) #>"
+#define OFFLINEDOCSURL "https://dl.zoitechat.org/offlinedocs/zoitechat-docs-html-" + APPVER + ".tar.gz"
 ; These are defined by our installer project at build time
 ;#define APPARCH "x64"
 ;#define PROJECTDIR "C:\...\zoitechat\win32\installer\"
@@ -30,8 +31,8 @@ PrivilegesRequired=none
 ShowComponentSizes=no
 CreateUninstallRegKey=not IsTaskSelected('portable')
 Uninstallable=not IsTaskSelected('portable')
-ArchitecturesAllowed=x64
-ArchitecturesInstallIn64BitMode=x64
+ArchitecturesAllowed=x64compatible
+ArchitecturesInstallIn64BitMode=x64compatible
 MinVersion=6.1
 WizardImageFile={#PROJECTDIR}wizardimage.bmp
 WizardSmallImageFile={#PROJECTDIR}wizardsmallimage.bmp
@@ -49,6 +50,7 @@ Name: "icons"; Description: "Create Shortcuts"; Types: custom; Flags: disablenou
 Name: "icons\desktopicon"; Description: "Create Desktop Shortcut"; Types: custom; Flags: disablenouninstallwarning
 Name: "icons\quicklaunchicon"; Description: "Create Quick Launch Shortcut"; Types: custom; Flags: disablenouninstallwarning
 Name: "translations"; Description: "Translations"; Types: normal custom; Flags: disablenouninstallwarning
+Name: "docs"; Description: "Offline Documentation"; Types: normal minimal custom; Flags: disablenouninstallwarning
 Name: "spell"; Description: "Spelling Dictionaries"; Types: custom; Flags: disablenouninstallwarning
 Name: "plugins"; Description: "Plugins"; Types: custom; Flags: disablenouninstallwarning
 Name: "plugins\checksum"; Description: "Checksum"; Types: custom; Flags: disablenouninstallwarning
@@ -95,6 +97,7 @@ Filename: "{sys}\WindowsPowerShell\v1.0\powershell.exe"; Parameters: "-NoProfile
 
 [Dirs]
 Name: "{userappdata}\ZoiteChat\gtk3-themes"; Components: themes
+Name: "{app}\offline-docs"; Components: docs
 
 [Files]
 Source: "portable-mode"; DestDir: "{app}"; Tasks: portable
@@ -105,6 +108,7 @@ Source: "cert.pem"; DestDir: "{app}"; Flags: ignoreversion; Components: libs
 Source: "share\xml\*"; DestDir: "{app}\share\xml"; Flags: ignoreversion createallsubdirs recursesubdirs; Components: libs
 Source: "share\doc\zoitechat\*"; DestDir: "{app}\share\doc\zoitechat"; Flags: ignoreversion createallsubdirs recursesubdirs; Components: libs
 Source: "share\doc\WinSparkle\*"; DestDir: "{app}\share\doc\WinSparkle"; Flags: ignoreversion createallsubdirs recursesubdirs; Components: libs
+Source: "offline-docs\*"; DestDir: "{app}\offline-docs"; Flags: ignoreversion createallsubdirs recursesubdirs; Components: docs
 Source: "share\themes\MS-Windows\*"; DestDir: "{app}\share\themes\MS-Windows"; Flags: ignoreversion createallsubdirs recursesubdirs skipifsourcedoesntexist; Components: libs
 Source: "share\glib-2.0\schemas\*"; DestDir: "{app}\share\glib-2.0\schemas"; Flags: ignoreversion createallsubdirs recursesubdirs skipifsourcedoesntexist; Components: libs
 Source: "share\icons\hicolor\*"; DestDir: "{app}\share\icons\hicolor"; Flags: ignoreversion createallsubdirs recursesubdirs skipifsourcedoesntexist; Components: libs
@@ -314,7 +318,34 @@ begin
 end;
 
 
-/////////////////////////////////////////////////////////////////////
+function InstallOfflineDocs(): Boolean;
+var
+	Archive: String;
+	DocsDir: String;
+	ResultCode: Integer;
+	Script: String;
+	WorkDir: String;
+begin
+	Result := True;
+	Archive := ExpandConstant('{tmp}\offline-docs.tar.gz');
+	DocsDir := ExpandConstant('{app}\offline-docs');
+	WorkDir := ExpandConstant('{tmp}\offline-docs-extract');
+	if not FileExists(Archive) then
+		Exit;
+	Script := 'Remove-Item -LiteralPath ''' + WorkDir + ''' -Recurse -Force -ErrorAction SilentlyContinue; ' +
+		'New-Item -ItemType Directory -LiteralPath ''' + WorkDir + ''' -Force | Out-Null; ' +
+		'tar -xzf ''' + Archive + ''' -C ''' + WorkDir + '''; ' +
+		'$i = Get-ChildItem -LiteralPath ''' + WorkDir + ''' -Recurse -Filter index.html | Select-Object -First 1; ' +
+		'if (-not $i) { exit 1 }; ' +
+		'Remove-Item -LiteralPath ''' + DocsDir + ''' -Recurse -Force -ErrorAction SilentlyContinue; ' +
+		'New-Item -ItemType Directory -LiteralPath ''' + DocsDir + ''' -Force | Out-Null; ' +
+		'Copy-Item -Path (Join-Path $i.DirectoryName ''*'') -Destination ''' + DocsDir + ''' -Recurse -Force';
+	if not Exec(ExpandConstant('{sys}\WindowsPowerShell\v1.0\powershell.exe'), '-NoProfile -ExecutionPolicy Bypass -Command "' + Script + '"', '', SW_HIDE, ewWaitUntilTerminated, ResultCode) then
+		Result := False
+	else
+		Result := ResultCode = 0;
+end;
+
 function CheckSpellInstall(): Boolean;
 var
 	Version: TWindowsVersion;
@@ -351,6 +382,9 @@ begin
 	if IsComponentSelected('themes\windows10dark') then
 		idpAddFile('https://dl.zoitechat.zoite.net/themes/GTK3Themes/Windows-10-Dark-3.2.1-dark.zip', ExpandConstant('{tmp}\Windows-10-Dark-3.2.1-dark.zip'));
 
+	if IsComponentSelected('docs') then
+		idpAddFile('{#OFFLINEDOCSURL}', ExpandConstant('{tmp}\offline-docs.tar.gz'));
+
 	if not IsTaskSelected('portable') then
 	begin
 
@@ -419,6 +453,13 @@ begin
 			Exit;
 		end;
 
+		if IsComponentSelected('docs') and not FileExists(ExpandConstant('{tmp}\offline-docs.tar.gz')) then
+		begin
+			MsgBox('Offline documentation could not be downloaded. Please retry setup or rerun setup with Offline Documentation deselected.', mbError, MB_OK);
+			Result := False;
+			Exit;
+		end;
+
 		if IsComponentSelected('deps\vcredist2015') and not CheckVCInstall() and not FileExists(ExpandConstant('{tmp}\vcredist.exe')) then
 		begin
 			MsgBox('Visual C++ Redistributable could not be downloaded. Please retry setup or install it manually and rerun setup.', mbError, MB_OK);
@@ -497,4 +538,10 @@ begin
 			DeleteFile(ExpandConstant('{app}\portable-mode'));
 		end;
 	end;
+
+	if (CurStep=ssPostInstall) and IsComponentSelected('docs') then
+	begin
+		if not InstallOfflineDocs() then
+			MsgBox('Offline documentation could not be installed from the downloaded archive.', mbError, MB_OK);
+	end;
 end;

win32/version.txt

@@ -1 +1 @@
-2.18.0
+2.18.1