Sloppy focus KTextEditor plugin for Kate split panes
Focus follows mouse across Kate split views. Configurable focus-stealing prevention parameters: - Focus delay (default 150ms) - Minimum stay time (default 50ms) - Ignore modal dialogs - Ignore floating widgets - Optional raise on focus Uses qApp event filter to catch Enter events on all widgets, walks up to find KTextEditor::View, and calls setFocus() to activate the view in its current split pane without opening new tabs.
This commit is contained in:
Levi Neely
commit
a641cbfc00
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build/
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cmake_minimum_required(VERSION 3.16)
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project(sloppyfocus VERSION 0.1.0 LANGUAGES CXX)
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set(CMAKE_CXX_STANDARD 17)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_AUTOMOC ON)
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find_package(ECM 5.80 REQUIRED NO_MODULE)
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set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH})
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# --- Detect Qt6/KF6 or fall back to Qt5/KF5 ---
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find_package(KF6TextEditor QUIET CONFIG)
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if(KF6TextEditor_FOUND)
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set(QT_MAJOR_VERSION 6)
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else()
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set(QT_MAJOR_VERSION 5)
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endif()
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include(KDEInstallDirs)
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include(KDECMakeSettings)
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include(KDECompilerSettings NO_POLICY_SCOPE)
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if(QT_MAJOR_VERSION EQUAL 6)
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find_package(Qt6 REQUIRED COMPONENTS Core Widgets)
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find_package(KF6I18n REQUIRED)
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find_package(KF6CoreAddons REQUIRED)
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set(KF_LINK_LIBS
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KF6::TextEditor
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KF6::I18n
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Qt6::Core
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Qt6::Widgets
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)
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set(PLUGIN_INSTALL_NS "kf6/ktexteditor")
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message(STATUS "Building Sloppy Focus with KF6/Qt6")
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else()
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find_package(Qt5 REQUIRED COMPONENTS Core Widgets)
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find_package(KF5TextEditor REQUIRED)
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find_package(KF5I18n REQUIRED)
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find_package(KF5CoreAddons REQUIRED)
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set(KF_LINK_LIBS
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KF5::TextEditor
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KF5::I18n
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Qt5::Core
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Qt5::Widgets
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)
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set(PLUGIN_INSTALL_NS "ktexteditor")
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message(STATUS "Building Sloppy Focus with KF5/Qt5")
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endif()
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kcoreaddons_add_plugin(sloppyfocus
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SOURCES
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sloppyfocus.cpp
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INSTALL_NAMESPACE "${PLUGIN_INSTALL_NS}"
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)
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target_link_libraries(sloppyfocus ${KF_LINK_LIBS})
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target_include_directories(sloppyfocus PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
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@ -0,0 +1,16 @@
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.PHONY: all clean install
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BUILD_DIR := build
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all: $(BUILD_DIR)/Makefile
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@cd $(BUILD_DIR) && make -j$$(nproc)
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$(BUILD_DIR)/Makefile: CMakeLists.txt
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@mkdir -p $(BUILD_DIR)
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@cd $(BUILD_DIR) && cmake .. -DCMAKE_INSTALL_PREFIX=/usr -Wno-dev
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install: all
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cd $(BUILD_DIR) && sudo make install
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clean:
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rm -rf $(BUILD_DIR)
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{
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"KPlugin": {
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"Id": "sloppyfocus",
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"Name": "Sloppy Focus",
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"Description": "Focus follows mouse for Kate editor views with configurable focus-stealing prevention",
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"Icon": "input-mouse",
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"Authors": [
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{
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"Name": "lkn"
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}
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]
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},
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"X-KDE-PluginInfo-EnabledByDefault": true
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}
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#include "sloppyfocus.h"
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#include <KLocalizedString>
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#include <KPluginFactory>
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#include <KSharedConfig>
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#include <KConfigGroup>
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#include <QApplication>
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#include <QEvent>
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#include <QWidget>
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#include <QDialog>
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#include <QVBoxLayout>
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#include <QFormLayout>
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#include <QGroupBox>
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#include <QSpinBox>
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#include <QCheckBox>
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#include <QLabel>
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#include <QIcon>
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K_PLUGIN_FACTORY_WITH_JSON(SloppyFocusPluginFactory,
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"metadata.json",
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registerPlugin<SloppyFocusPlugin>();)
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static const char *CONFIG_GROUP = "SloppyFocus";
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static const char *KEY_FOCUS_DELAY = "FocusDelay";
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static const char *KEY_MIN_STAY = "MinimumStayTime";
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static const char *KEY_RAISE = "RaiseOnFocus";
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static const char *KEY_IGNORE_DIALOGS = "IgnoreDialogs";
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static const char *KEY_IGNORE_FLOATING = "IgnoreFloatingWidgets";
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// ============================================================
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// SloppyFocusPlugin
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// ============================================================
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SloppyFocusPlugin::SloppyFocusPlugin(QObject *parent, const QVariantList &args)
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: KTextEditor::Plugin(parent)
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{
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Q_UNUSED(args)
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readConfig();
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}
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SloppyFocusPlugin::~SloppyFocusPlugin() = default;
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QObject *SloppyFocusPlugin::createView(KTextEditor::MainWindow *mainWindow)
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{
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return new SloppyFocusView(this, mainWindow);
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}
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int SloppyFocusPlugin::configPages() const
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{
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return 1;
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}
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KTextEditor::ConfigPage *SloppyFocusPlugin::configPage(int number, QWidget *parent)
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{
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if (number == 0) {
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return new SloppyFocusConfigPage(this, parent);
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}
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return nullptr;
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}
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void SloppyFocusPlugin::setFocusDelay(int ms)
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{
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m_focusDelay = qBound(0, ms, 5000);
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}
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void SloppyFocusPlugin::setMinimumStayTime(int ms)
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{
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m_minimumStayTime = qBound(0, ms, 5000);
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}
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void SloppyFocusPlugin::setRaiseOnFocus(bool raise)
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{
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m_raiseOnFocus = raise;
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}
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void SloppyFocusPlugin::setIgnoreDialogs(bool ignore)
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{
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m_ignoreDialogs = ignore;
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}
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void SloppyFocusPlugin::setIgnoreFloatingWidgets(bool ignore)
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{
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m_ignoreFloatingWidgets = ignore;
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}
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void SloppyFocusPlugin::readConfig()
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{
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KConfigGroup cg(KSharedConfig::openConfig(), CONFIG_GROUP);
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m_focusDelay = cg.readEntry(KEY_FOCUS_DELAY, 150);
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m_minimumStayTime = cg.readEntry(KEY_MIN_STAY, 50);
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m_raiseOnFocus = cg.readEntry(KEY_RAISE, false);
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m_ignoreDialogs = cg.readEntry(KEY_IGNORE_DIALOGS, true);
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m_ignoreFloatingWidgets = cg.readEntry(KEY_IGNORE_FLOATING, true);
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}
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void SloppyFocusPlugin::writeConfig()
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{
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KConfigGroup cg(KSharedConfig::openConfig(), CONFIG_GROUP);
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cg.writeEntry(KEY_FOCUS_DELAY, m_focusDelay);
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cg.writeEntry(KEY_MIN_STAY, m_minimumStayTime);
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cg.writeEntry(KEY_RAISE, m_raiseOnFocus);
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cg.writeEntry(KEY_IGNORE_DIALOGS, m_ignoreDialogs);
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cg.writeEntry(KEY_IGNORE_FLOATING, m_ignoreFloatingWidgets);
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cg.sync();
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Q_EMIT configChanged();
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}
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// ============================================================
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// SloppyFocusView — event filter and focus switching logic
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// ============================================================
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SloppyFocusView::SloppyFocusView(SloppyFocusPlugin *plugin, KTextEditor::MainWindow *mainWindow)
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: QObject(mainWindow->window())
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, m_plugin(plugin)
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, m_mainWindow(mainWindow)
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{
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m_focusTimer.setSingleShot(true);
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connect(&m_focusTimer, &QTimer::timeout, this, &SloppyFocusView::activatePendingView);
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connect(m_plugin, &SloppyFocusPlugin::configChanged, this, &SloppyFocusView::onConfigChanged);
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m_lastFocusChange.start();
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// Install event filter on QApplication to see Enter events for ALL widgets.
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// A filter on just the main window won't propagate to children.
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qApp->installEventFilter(this);
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}
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SloppyFocusView::~SloppyFocusView()
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{
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m_focusTimer.stop();
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qApp->removeEventFilter(this);
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}
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void SloppyFocusView::onConfigChanged()
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{
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// Timer interval is updated on next trigger; nothing else needed
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}
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bool SloppyFocusView::eventFilter(QObject *obj, QEvent *event)
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{
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if (event->type() != QEvent::Enter) {
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return false;
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}
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auto *widget = qobject_cast<QWidget *>(obj);
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if (!widget) {
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return false;
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}
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// Only handle widgets belonging to our main window
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if (widget->window() != m_mainWindow->window()) {
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return false;
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}
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// Find the KTextEditor::View ancestor of the entered widget
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KTextEditor::View *view = viewForWidget(widget);
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if (!view) {
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return false;
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}
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// Don't re-trigger for the view that already has focus
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if (view == m_currentView) {
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m_focusTimer.stop();
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m_pendingView = nullptr;
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return false;
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}
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// Focus-stealing prevention: check minimum stay time
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if (m_plugin->minimumStayTime() > 0 &&
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m_lastFocusChange.elapsed() < m_plugin->minimumStayTime()) {
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return false;
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}
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// Check if we should ignore due to active dialog
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if (shouldIgnoreFocus()) {
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return false;
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}
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// Schedule focus change after delay
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m_pendingView = view;
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m_focusTimer.start(m_plugin->focusDelay());
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return false;
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}
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void SloppyFocusView::activatePendingView()
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{
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if (!m_pendingView) {
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return;
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}
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// Final check: is the mouse still over this view?
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// (The view might have been destroyed or mouse moved away)
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KTextEditor::View *view = m_pendingView;
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m_pendingView = nullptr;
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if (!view->isVisible()) {
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return;
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}
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// Verify mouse is still within the view's geometry
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QPoint globalPos = QCursor::pos();
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QRect viewRect = view->rect();
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QPoint viewTopLeft = view->mapToGlobal(viewRect.topLeft());
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QRect globalRect(viewTopLeft, viewRect.size());
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if (!globalRect.contains(globalPos)) {
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return;
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}
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// Perform the focus switch — just move keyboard focus to the view
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// in its current split pane. Do NOT use activateView(document) as that
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// can open the document in a different view space.
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view->setFocus();
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m_currentView = view;
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m_lastFocusChange.restart();
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if (m_plugin->raiseOnFocus()) {
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view->raise();
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}
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}
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KTextEditor::View *SloppyFocusView::viewForWidget(QWidget *widget) const
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{
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// Walk up the widget hierarchy looking for a KTextEditor::View
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QWidget *w = widget;
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while (w) {
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if (auto *view = qobject_cast<KTextEditor::View *>(w)) {
|
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return view;
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||||||
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}
|
||||||
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w = w->parentWidget();
|
||||||
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}
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return nullptr;
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||||||
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}
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bool SloppyFocusView::shouldIgnoreFocus() const
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{
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// Ignore if a modal dialog is active
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if (m_plugin->ignoreDialogs()) {
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if (QApplication::activeModalWidget()) {
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return true;
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}
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}
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// Ignore if a floating/popup widget has focus
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if (m_plugin->ignoreFloatingWidgets()) {
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QWidget *focused = QApplication::focusWidget();
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if (focused && focused->window() != m_mainWindow->window()) {
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||||||
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return true;
|
||||||
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}
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||||||
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}
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||||||
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||||||
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return false;
|
||||||
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}
|
||||||
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|
||||||
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// ============================================================
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||||||
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// SloppyFocusConfigPage
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||||||
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// ============================================================
|
||||||
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|
||||||
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SloppyFocusConfigPage::SloppyFocusConfigPage(SloppyFocusPlugin *plugin, QWidget *parent)
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||||||
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: KTextEditor::ConfigPage(parent)
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||||||
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, m_plugin(plugin)
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||||||
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{
|
||||||
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auto *layout = new QVBoxLayout(this);
|
||||||
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|
||||||
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// Focus timing group
|
||||||
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auto *timingGroup = new QGroupBox(i18n("Focus Timing"), this);
|
||||||
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auto *timingLayout = new QFormLayout(timingGroup);
|
||||||
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|
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m_focusDelaySpin = new QSpinBox(this);
|
||||||
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m_focusDelaySpin->setRange(0, 5000);
|
||||||
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m_focusDelaySpin->setSuffix(i18n(" ms"));
|
||||||
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m_focusDelaySpin->setToolTip(i18n("Time the mouse must hover over a view before focus switches. "
|
||||||
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"Set to 0 for immediate focus change."));
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||||||
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timingLayout->addRow(i18n("Focus delay:"), m_focusDelaySpin);
|
||||||
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|
||||||
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m_minimumStaySpin = new QSpinBox(this);
|
||||||
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m_minimumStaySpin->setRange(0, 5000);
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||||||
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m_minimumStaySpin->setSuffix(i18n(" ms"));
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||||||
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m_minimumStaySpin->setToolTip(i18n("Minimum time focus must remain on a view before another "
|
||||||
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"switch is allowed. Prevents rapid bouncing."));
|
||||||
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timingLayout->addRow(i18n("Minimum stay time:"), m_minimumStaySpin);
|
||||||
|
|
||||||
|
layout->addWidget(timingGroup);
|
||||||
|
|
||||||
|
// Behavior group
|
||||||
|
auto *behaviorGroup = new QGroupBox(i18n("Focus-Stealing Prevention"), this);
|
||||||
|
auto *behaviorLayout = new QVBoxLayout(behaviorGroup);
|
||||||
|
|
||||||
|
m_raiseOnFocusCheck = new QCheckBox(i18n("Raise view on focus"), this);
|
||||||
|
m_raiseOnFocusCheck->setToolTip(i18n("Raise the view widget when it receives sloppy focus"));
|
||||||
|
behaviorLayout->addWidget(m_raiseOnFocusCheck);
|
||||||
|
|
||||||
|
m_ignoreDialogsCheck = new QCheckBox(i18n("Ignore when dialogs are open"), this);
|
||||||
|
m_ignoreDialogsCheck->setToolTip(i18n("Disable sloppy focus while a modal dialog is active"));
|
||||||
|
behaviorLayout->addWidget(m_ignoreDialogsCheck);
|
||||||
|
|
||||||
|
m_ignoreFloatingCheck = new QCheckBox(i18n("Ignore when floating widgets have focus"), this);
|
||||||
|
m_ignoreFloatingCheck->setToolTip(i18n("Disable sloppy focus when focus is in a different "
|
||||||
|
"window (e.g., completion popups, tooltips)"));
|
||||||
|
behaviorLayout->addWidget(m_ignoreFloatingCheck);
|
||||||
|
|
||||||
|
layout->addWidget(behaviorGroup);
|
||||||
|
layout->addStretch();
|
||||||
|
|
||||||
|
// Connect change signals
|
||||||
|
connect(m_focusDelaySpin, QOverload<int>::of(&QSpinBox::valueChanged),
|
||||||
|
this, &SloppyFocusConfigPage::changed);
|
||||||
|
connect(m_minimumStaySpin, QOverload<int>::of(&QSpinBox::valueChanged),
|
||||||
|
this, &SloppyFocusConfigPage::changed);
|
||||||
|
connect(m_raiseOnFocusCheck, &QCheckBox::toggled,
|
||||||
|
this, &SloppyFocusConfigPage::changed);
|
||||||
|
connect(m_ignoreDialogsCheck, &QCheckBox::toggled,
|
||||||
|
this, &SloppyFocusConfigPage::changed);
|
||||||
|
connect(m_ignoreFloatingCheck, &QCheckBox::toggled,
|
||||||
|
this, &SloppyFocusConfigPage::changed);
|
||||||
|
|
||||||
|
reset();
|
||||||
|
}
|
||||||
|
|
||||||
|
SloppyFocusConfigPage::~SloppyFocusConfigPage() = default;
|
||||||
|
|
||||||
|
QString SloppyFocusConfigPage::name() const
|
||||||
|
{
|
||||||
|
return i18n("Sloppy Focus");
|
||||||
|
}
|
||||||
|
|
||||||
|
QString SloppyFocusConfigPage::fullName() const
|
||||||
|
{
|
||||||
|
return i18n("Sloppy Focus (Focus Follows Mouse)");
|
||||||
|
}
|
||||||
|
|
||||||
|
QIcon SloppyFocusConfigPage::icon() const
|
||||||
|
{
|
||||||
|
return QIcon::fromTheme(QStringLiteral("input-mouse"));
|
||||||
|
}
|
||||||
|
|
||||||
|
void SloppyFocusConfigPage::apply()
|
||||||
|
{
|
||||||
|
m_plugin->setFocusDelay(m_focusDelaySpin->value());
|
||||||
|
m_plugin->setMinimumStayTime(m_minimumStaySpin->value());
|
||||||
|
m_plugin->setRaiseOnFocus(m_raiseOnFocusCheck->isChecked());
|
||||||
|
m_plugin->setIgnoreDialogs(m_ignoreDialogsCheck->isChecked());
|
||||||
|
m_plugin->setIgnoreFloatingWidgets(m_ignoreFloatingCheck->isChecked());
|
||||||
|
m_plugin->writeConfig();
|
||||||
|
}
|
||||||
|
|
||||||
|
void SloppyFocusConfigPage::defaults()
|
||||||
|
{
|
||||||
|
m_focusDelaySpin->setValue(150);
|
||||||
|
m_minimumStaySpin->setValue(50);
|
||||||
|
m_raiseOnFocusCheck->setChecked(false);
|
||||||
|
m_ignoreDialogsCheck->setChecked(true);
|
||||||
|
m_ignoreFloatingCheck->setChecked(true);
|
||||||
|
}
|
||||||
|
|
||||||
|
void SloppyFocusConfigPage::reset()
|
||||||
|
{
|
||||||
|
m_focusDelaySpin->setValue(m_plugin->focusDelay());
|
||||||
|
m_minimumStaySpin->setValue(m_plugin->minimumStayTime());
|
||||||
|
m_raiseOnFocusCheck->setChecked(m_plugin->raiseOnFocus());
|
||||||
|
m_ignoreDialogsCheck->setChecked(m_plugin->ignoreDialogs());
|
||||||
|
m_ignoreFloatingCheck->setChecked(m_plugin->ignoreFloatingWidgets());
|
||||||
|
}
|
||||||
|
|
||||||
|
#include "sloppyfocus.moc"
|
||||||
|
|
@ -0,0 +1,105 @@
|
||||||
|
#ifndef SLOPPYFOCUS_H
|
||||||
|
#define SLOPPYFOCUS_H
|
||||||
|
|
||||||
|
#include <KTextEditor/Plugin>
|
||||||
|
#include <KTextEditor/MainWindow>
|
||||||
|
#include <KTextEditor/ConfigPage>
|
||||||
|
#include <KTextEditor/View>
|
||||||
|
|
||||||
|
#include <QObject>
|
||||||
|
#include <QTimer>
|
||||||
|
#include <QPointer>
|
||||||
|
#include <QElapsedTimer>
|
||||||
|
|
||||||
|
class SloppyFocusPlugin : public KTextEditor::Plugin
|
||||||
|
{
|
||||||
|
Q_OBJECT
|
||||||
|
|
||||||
|
public:
|
||||||
|
explicit SloppyFocusPlugin(QObject *parent, const QVariantList &args);
|
||||||
|
~SloppyFocusPlugin() override;
|
||||||
|
|
||||||
|
QObject *createView(KTextEditor::MainWindow *mainWindow) override;
|
||||||
|
int configPages() const override;
|
||||||
|
KTextEditor::ConfigPage *configPage(int number, QWidget *parent) override;
|
||||||
|
|
||||||
|
// Configuration
|
||||||
|
int focusDelay() const { return m_focusDelay; }
|
||||||
|
int minimumStayTime() const { return m_minimumStayTime; }
|
||||||
|
bool raiseOnFocus() const { return m_raiseOnFocus; }
|
||||||
|
bool ignoreDialogs() const { return m_ignoreDialogs; }
|
||||||
|
bool ignoreFloatingWidgets() const { return m_ignoreFloatingWidgets; }
|
||||||
|
|
||||||
|
void setFocusDelay(int ms);
|
||||||
|
void setMinimumStayTime(int ms);
|
||||||
|
void setRaiseOnFocus(bool raise);
|
||||||
|
void setIgnoreDialogs(bool ignore);
|
||||||
|
void setIgnoreFloatingWidgets(bool ignore);
|
||||||
|
|
||||||
|
void readConfig();
|
||||||
|
void writeConfig();
|
||||||
|
|
||||||
|
Q_SIGNALS:
|
||||||
|
void configChanged();
|
||||||
|
|
||||||
|
private:
|
||||||
|
int m_focusDelay = 150;
|
||||||
|
int m_minimumStayTime = 50;
|
||||||
|
bool m_raiseOnFocus = false;
|
||||||
|
bool m_ignoreDialogs = true;
|
||||||
|
bool m_ignoreFloatingWidgets = true;
|
||||||
|
};
|
||||||
|
|
||||||
|
class SloppyFocusView : public QObject
|
||||||
|
{
|
||||||
|
Q_OBJECT
|
||||||
|
|
||||||
|
public:
|
||||||
|
explicit SloppyFocusView(SloppyFocusPlugin *plugin, KTextEditor::MainWindow *mainWindow);
|
||||||
|
~SloppyFocusView() override;
|
||||||
|
|
||||||
|
protected:
|
||||||
|
bool eventFilter(QObject *obj, QEvent *event) override;
|
||||||
|
|
||||||
|
private Q_SLOTS:
|
||||||
|
void activatePendingView();
|
||||||
|
void onConfigChanged();
|
||||||
|
|
||||||
|
private:
|
||||||
|
KTextEditor::View *viewForWidget(QWidget *widget) const;
|
||||||
|
bool shouldIgnoreFocus() const;
|
||||||
|
|
||||||
|
SloppyFocusPlugin *m_plugin;
|
||||||
|
KTextEditor::MainWindow *m_mainWindow;
|
||||||
|
QTimer m_focusTimer;
|
||||||
|
QElapsedTimer m_lastFocusChange;
|
||||||
|
QPointer<KTextEditor::View> m_pendingView;
|
||||||
|
QPointer<KTextEditor::View> m_currentView;
|
||||||
|
};
|
||||||
|
|
||||||
|
class SloppyFocusConfigPage : public KTextEditor::ConfigPage
|
||||||
|
{
|
||||||
|
Q_OBJECT
|
||||||
|
|
||||||
|
public:
|
||||||
|
explicit SloppyFocusConfigPage(SloppyFocusPlugin *plugin, QWidget *parent);
|
||||||
|
~SloppyFocusConfigPage() override;
|
||||||
|
|
||||||
|
QString name() const override;
|
||||||
|
QString fullName() const override;
|
||||||
|
QIcon icon() const override;
|
||||||
|
|
||||||
|
void apply() override;
|
||||||
|
void defaults() override;
|
||||||
|
void reset() override;
|
||||||
|
|
||||||
|
private:
|
||||||
|
SloppyFocusPlugin *m_plugin;
|
||||||
|
class QSpinBox *m_focusDelaySpin;
|
||||||
|
class QSpinBox *m_minimumStaySpin;
|
||||||
|
class QCheckBox *m_raiseOnFocusCheck;
|
||||||
|
class QCheckBox *m_ignoreDialogsCheck;
|
||||||
|
class QCheckBox *m_ignoreFloatingCheck;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif // SLOPPYFOCUS_H
|
||||||
Loading…
Reference in New Issue