Optionally support libqtspell for spell check

.github/workflows/build.yml

@@ -8,7 +8,7 @@ on:
   pull_request:
   workflow_dispatch:
 
-concurrency: 
+concurrency:
   group: build-${{ github.ref }}
   cancel-in-progress: true
 
@@ -87,12 +87,12 @@ jobs:
       - name: Add Conan to path
         if: startsWith(matrix.os, 'windows')
         run: echo "C:\Program Files\Conan\conan\" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
-        
+
       - name: Install dependencies (Windows)
         if: startsWith(matrix.os, 'windows')
         run: |
             choco install conan -y
-        
+
       - name: Enable Developer Command Prompt
         if: startsWith(matrix.os, 'windows')
         uses: ilammy/[email protected]
@@ -122,7 +122,7 @@ jobs:
         if: startsWith(matrix.os, 'windows')
         run: conan remove "*" -fsb
         shell: bash
-        
+
       # LINUX
       - name: Install dependencies (Ubuntu)
         if: startsWith(matrix.os, 'ubuntu')

BUILDING_ON_LINUX.md

@@ -9,6 +9,8 @@ Note on Qt version compatibility: If you are installing Qt from a package manage
 _Most likely works the same for other Debian-like distros_
 
 Install all of the dependencies using `sudo apt install qttools5-dev qtmultimedia5-dev qt5-image-formats-plugins libqt5svg5-dev libboost-dev libssl-dev libboost-system-dev libboost-filesystem-dev cmake g++`
+1. Install all of the dependencies using `sudo apt install qttools5-dev qtmultimedia5-dev qt5-image-formats-plugin libqt5svg5-dev libboost-dev libssl-dev libboost-system-dev libboost-filesystem-dev cmake g++`
+1. Optionally install QtSpell using `sudo apt install libqtspell-qt5-dev`
 
 ### Arch Linux
 

CHANGELOG.md

@@ -7,6 +7,7 @@
 - Minor: Added a link to the upstream commit (Mm2PL/Dankerino#127)
 - Minor: Added RaccAttack URL to Twitch Emote context menu (Mm2PL/Dankerino#122)
 - Minor: Added a warning to not send bug reports to upstream (Mm2PL/Dankerino#128)
+- Minor: Optionally support QtSpell for spell checking (Mm2PL/Dankerino#125)
 
 ### Chatterino
 - Major: Added multi-channel searching to search dialog via keyboard shortcut. (Ctrl+Shift+F by default) (#3694, #3875)

CMakeLists.txt

@@ -103,6 +103,9 @@ find_package(RapidJSON REQUIRED)
 
 find_package(Websocketpp REQUIRED)
 
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(QTSPELL QtSpell-qt5)
+
 if (BUILD_TESTS)
     add_subdirectory("${CMAKE_CURRENT_LIST_DIR}/lib/googletest" "lib/googletest")
 

src/CMakeLists.txt

@@ -711,6 +711,12 @@ endif ()
 
 target_include_directories(${LIBRARY_PROJECT} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 
+if (QTSPELL_FOUND)
+    target_compile_definitions(${LIBRARY_PROJECT} PUBLIC HAVE_QTSPELL)
+    target_include_directories(${LIBRARY_PROJECT} PUBLIC ${QTSPELL_INCLUDE_DIRS})
+    target_link_libraries(${LIBRARY_PROJECT} PUBLIC ${QTSPELL_LIBRARIES})
+endif()
+
 if (WinToast_FOUND)
     target_link_libraries(${LIBRARY_PROJECT}
         PUBLIC

src/widgets/splits/Split.cpp

@@ -54,6 +54,10 @@
 #include <QPainter>
 #include <QVBoxLayout>
 
+#ifdef HAVE_QTSPELL
+#    include <QtSpell.hpp>
+#endif
+
 #include <functional>
 #include <random>
 
@@ -103,6 +107,9 @@ Split::Split(QWidget *parent)
     this->vbox_->addWidget(this->view_, 1);
     this->vbox_->addWidget(this->input_);
 
+#ifdef HAVE_QTSPELL
+    this->checker_.setTextEdit(this->input_->ui_.textEdit);
+#endif
     this->input_->ui_.textEdit->installEventFilter(parent);
 
     // update placeholder text on Twitch account change and channel change

src/widgets/splits/Split.hpp

@@ -12,6 +12,10 @@
 #include <QWidget>
 #include <boost/signals2.hpp>
 
+#ifdef HAVE_QTSPELL
+#    include <QtSpell.hpp>
+#endif
+
 namespace chatterino {
 
 class ChannelView;
@@ -154,6 +158,10 @@ class Split : public BaseWidget
     pajlada::Signals::SignalHolder signalHolder_;
     std::vector<boost::signals2::scoped_connection> bSignals_;
 
+#ifdef HAVE_QTSPELL
+    QtSpell::TextEditChecker checker_;
+#endif
+
 public slots:
     void addSibling();
     void deleteFromContainer();