C++ source, ASCII text
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#include "gpanthera.hh"
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#include <cassert>
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#include <iostream>
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#include <utility>
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#include <libintl.h>
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#include <locale.h>
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#include <filesystem>
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#define _(STRING) gettext(STRING)
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namespace gPanthera {
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sigc::signal<void(double, double)> add_context_menu(Gtk::Widget &widget) {
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sigc::signal<void(double, double)> signal;
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// Add a context menu to a widget
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auto gesture_click = Gtk::GestureClick::create();
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gesture_click->set_button(3);
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auto gesture_keyboard = Gtk::EventControllerKey::create();
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gesture_click->signal_pressed().connect([&widget, signal](int n_press, double x, double y) {
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if(n_press == 1) {
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signal.emit(x, y);
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}
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}, false);
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gesture_keyboard->signal_key_pressed().connect([&widget, signal](int keyval, int keycode, Gdk::ModifierType state) {
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if((keyval == GDK_KEY_F10) && (state == Gdk::ModifierType::SHIFT_MASK) || keyval == GDK_KEY_Menu) {
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// auto popover = Gtk::make_managed<Gtk::PopoverMenu>();
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// popover->set_menu_model(menu);
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// popover->set_has_arrow(false);
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// popover->set_halign(Gtk::Align::START);
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// popover->set_pointing_to(Gdk::Rectangle(0, 0, 1, 1));
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// popover->set_parent(widget);
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// popover->popup();
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signal.emit(0, 0);
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}
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return true;
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}, false);
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widget.add_controller(gesture_click);
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widget.add_controller(gesture_keyboard);
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return signal;
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}
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std::vector<Gtk::Widget*> collect_children(Gtk::Widget &widget) {
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// Get a vector of the children of a GTK widget, since the container API was removed in GTK 4
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std::vector<Gtk::Widget*> children;
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for(auto *child = widget.get_first_child(); child; child = child->get_next_sibling()) {
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children.push_back(child);
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}
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return children;
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}
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Gtk::Image *copy_image(Gtk::Image *image) {
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// Generate a new Gtk::Image with the same contents as an existing one
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if(image->get_storage_type() == Gtk::Image::Type::PAINTABLE) {
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return Gtk::make_managed<Gtk::Image>(image->get_paintable());
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} else if(image->get_storage_type() == Gtk::Image::Type::ICON_NAME) {
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auto new_image = Gtk::make_managed<Gtk::Image>();
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new_image->set_from_icon_name(image->get_icon_name());
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return new_image;
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} else {
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return nullptr;
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}
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}
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void init() {
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g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
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// Set up gettext configurationIsn't
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bindtextdomain("gpanthera", "./locales");
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textdomain("gpanthera");
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}
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DockablePane::DockablePane(std::shared_ptr<LayoutManager> layout, Gtk::Widget &child, const Glib::ustring &name, const Glib::ustring &label, Gtk::Image *icon, DockStack *stack, Gtk::Widget *custom_header)
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: Gtk::Box(Gtk::Orientation::VERTICAL, 0), name(name) {
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if(icon) {
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this->icon = icon;
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}
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if(stack) {
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this->stack = stack;
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}
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this->layout = std::move(layout);
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this->label.set_text(label);
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// This should be replaced with a custom class in the future
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header = std::make_unique<Gtk::HeaderBar>();
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header->set_show_title_buttons(false);
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if(custom_header) {
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header->set_title_widget(*custom_header);
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} else {
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header->set_title_widget(this->label);
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}
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header->add_css_class("gpanthera-dock-titlebar");
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auto header_menu_button = Gtk::make_managed<Gtk::MenuButton>();
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header_menu_button->set_direction(Gtk::ArrowType::NONE);
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// Pane menu
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this->action_group = Gio::SimpleActionGroup::create();
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header_menu_button->insert_action_group("win", action_group);
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// Close action
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auto close_action = Gio::SimpleAction::create("close");
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close_action->signal_activate().connect([this](const Glib::VariantBase&) {
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if(this->stack) {
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this->stack->set_visible_child("");
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}
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});
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action_group->add_action(close_action);
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header_menu->append(_("Close"), "win.close");
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// Pop out action
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auto pop_out_action = Gio::SimpleAction::create("pop_out");
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pop_out_action->signal_activate().connect([this](const Glib::VariantBase&) {
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if(this->stack) {
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this->pop_out();
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}
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});
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action_group->add_action(pop_out_action);
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header_menu->append(_("Pop out"), "win.pop_out");
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// Move menu
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auto move_menu = Gio::Menu::create();
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for(auto &this_stack : this->layout->stacks) {
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auto action_name = "move_" + this_stack->name;
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auto move_action = Gio::SimpleAction::create(action_name);
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move_action->signal_activate().connect([this, this_stack](const Glib::VariantBase&) {
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this_stack->add_pane(*this);
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});
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action_group->add_action(move_action);
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move_menu->append(this_stack->name, "win." + action_name);
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}
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// Add move submenu
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header_menu->append_submenu(_("Move"), move_menu);
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// Switch to traditional (nested) submenus, not sliding
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auto popover_menu = Gtk::make_managed<Gtk::PopoverMenu>(header_menu, Gtk::PopoverMenu::Flags::NESTED);
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popover_menu->set_has_arrow(false);
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header_menu_button->set_popover(*popover_menu);
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// TODO: Add a context menu as well
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header->pack_end(*header_menu_button);
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this->prepend(*header);
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this->child = &child;
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this->append(child);
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}
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Gtk::Stack *DockablePane::get_stack() const {
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return stack;
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}
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void DockablePane::redock(DockStack *stack) {
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if(this->window != nullptr) {
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this->window->hide();
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// Put the titlebar back
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this->window->unset_titlebar();
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this->window->set_decorated(false);
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this->header->get_style_context()->remove_class("titlebar");
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this->prepend(*this->header);
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this->window->unset_child();
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this->window->close();
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} else if(this->get_parent() && this->stack == this->get_parent()) {
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this->stack->remove(*this);
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}
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this->stack = stack;
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this->last_stack = stack;
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this->stack->add(*this, this->get_identifier());
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if(this->window != nullptr) {
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this->window->destroy();
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delete this->window;
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this->window = nullptr;
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// Re-enable the pop out option
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auto action = std::dynamic_pointer_cast<Gio::SimpleAction>(this->action_group->lookup_action("pop_out"));
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action->set_enabled(true);
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this->header->get_style_context()->remove_class("gpanthera-dock-titlebar-popout");
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}
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}
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void DockablePane::pop_out() {
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if(this->stack != nullptr) {
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this->stack->remove(*this);
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this->stack = nullptr;
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}
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if(this->window == nullptr) {
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// Remove the header bar from the pane, so it can be used as the titlebar of the window
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this->remove(*this->header);
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this->window = new DockWindow(this);
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this->window->set_titlebar(*this->header);
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this->window->set_child(*this);
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this->window->set_decorated(true);
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// Grey out the pop-out option
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auto action = std::dynamic_pointer_cast<Gio::SimpleAction>(this->action_group->lookup_action("pop_out"));
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action->set_enabled(false);
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this->header->get_style_context()->add_class("gpanthera-dock-titlebar-popout");
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}
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this->window->present();
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}
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Glib::ustring DockablePane::get_identifier() const {
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return name;
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}
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Gtk::Image *DockablePane::get_icon() const {
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return icon;
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}
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Gtk::Widget *DockablePane::get_child() const {
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return child;
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}
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Gtk::Label *DockablePane::get_label() {
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return &label;
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}
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LayoutManager::LayoutManager() : Glib::ObjectBase("LayoutManager") {
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}
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void LayoutManager::add_pane(DockablePane *pane) {
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panes.push_back(pane);
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}
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void LayoutManager::add_stack(DockStack *stack) {
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stacks.push_back(stack);
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}
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void LayoutManager::remove_pane(DockablePane *pane) {
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panes.erase(std::ranges::remove(panes, pane).begin(), panes.end());
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}
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void LayoutManager::remove_stack(DockStack *stack) {
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stacks.erase(std::ranges::remove(stacks, stack).begin(), stacks.end());
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}
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BaseStack::BaseStack() : Gtk::Stack() {
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}
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DockStack::DockStack(std::shared_ptr<LayoutManager> layout, const Glib::ustring &name) : BaseStack(), layout(layout), name(name) {
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auto empty_child = Gtk::make_managed<Gtk::Box>(Gtk::Orientation::VERTICAL, 0);
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this->add(*empty_child, "");
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// Add the stack to a layout manager
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this->layout->add_stack(this);
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// Hide the stack when no child is visible
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this->property_visible_child_name().signal_changed().connect([this]() {
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if(this->get_visible_child_name() == "") {
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this->hide();
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} else {
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this->show();
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}
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});
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// Also hide when the visible child is removed
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this->signal_child_removed.connect([this](Gtk::Widget* const &child) {
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if(this->get_visible_child_name() == "") {
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this->hide();
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}
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});
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this->set_visible_child("");
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this->hide();
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}
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DockWindow::DockWindow(DockablePane *pane) {
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this->pane = pane;
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this->set_child(*pane);
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// Attempting to close the window should redock the pane so it doesn't vanish
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this->signal_close_request().connect([this]() {
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this->pane->redock(this->pane->last_stack);
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return true;
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}, false);
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}
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DockStackSwitcher::DockStackSwitcher(DockStack *stack, Gtk::Orientation orientation) : Gtk::Box(orientation), stack(stack) {
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auto update_callback = [this](Gtk::Widget*) {
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this->update_buttons();
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};
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this->property_accessible_role().set_value(Gtk::Accessible::Role::TAB_LIST);
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stack->signal_child_added.connect(update_callback);
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stack->signal_child_removed.connect(update_callback);
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this->get_style_context()->add_class("gpanthera-dock-switcher");
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drop_target = Gtk::DropTarget::create(DockablePane::get_type(), Gdk::DragAction::MOVE);
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this->add_controller(drop_target);
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// Process dropped buttons
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drop_target->signal_drop().connect([this](const Glib::ValueBase& value, double x, double y) {
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const auto &widget = static_cast<const Glib::Value<DockablePane*>&>(value).get();
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if(widget) {
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if(auto pane = dynamic_cast<DockablePane*>(widget)) {
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this->stack->add_pane(*pane);
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}
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}
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return true; // Drop OK
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}, false);
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}
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DockStack *DockStackSwitcher::get_stack() const {
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return stack;
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}
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DockStackSwitcher::~DockStackSwitcher() {
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add_handler.disconnect();
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remove_handler.disconnect();
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}
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DockButton::DockButton(DockablePane *pane) : Gtk::ToggleButton(), pane(pane) {
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if(pane->get_icon()) {
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this->set_child(*copy_image(pane->get_icon()));
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}
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this->property_accessible_role().set_value(Gtk::Accessible::Role::TAB);
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this->set_tooltip_text(pane->get_label()->get_text());
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this->set_halign(Gtk::Align::CENTER);
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this->set_valign(Gtk::Align::CENTER);
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this->get_style_context()->add_class("toggle");
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this->get_style_context()->add_class("gpanthera-dock-button");
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// Add/remove CSS classes when the pane is shown/hidden
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active_style_handler = this->pane->get_stack()->property_visible_child_name().signal_changed().connect([this]() {
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this->update_active_style();
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});
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drag_source = Gtk::DragSource::create();
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drag_source->set_exclusive(false);
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// This is to prevent the click handler from taking over grabbing the button
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drag_source->set_propagation_phase(Gtk::PropagationPhase::CAPTURE);
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value.init(DockablePane::get_type());
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value.set(pane);
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// Add the drag source to the button
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this->add_controller(drag_source);
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this->signal_clicked().connect([this, pane]() {
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if(pane->get_stack()->get_visible_child_name() == pane->get_identifier()) {
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pane->get_stack()->set_visible_child("");
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} else {
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pane->get_stack()->set_visible_child(pane->get_identifier());
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}
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});
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// Provide the drag data
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drag_source->signal_prepare().connect([this](double, double) {
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drag_source->set_actions(Gdk::DragAction::MOVE);
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auto const paintable = Gtk::WidgetPaintable::create();
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paintable->set_widget(*this);
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drag_source->set_icon(paintable->get_current_image(), 0, 0);
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return Gdk::ContentProvider::create(value);
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}, false);
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drag_source->signal_drag_begin().connect([this](const Glib::RefPtr<Gdk::Drag>&) {
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this->set_opacity(0);
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}, false);
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// Pop out if dragged to an external location
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drag_source->signal_drag_cancel().connect([this](const Glib::RefPtr<Gdk::Drag>&, Gdk::DragCancelReason reason) {
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if(reason == Gdk::DragCancelReason::NO_TARGET) {
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this->pane->pop_out();
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return true;
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}
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this->set_opacity(1);
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return false;
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}, false);
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// Add a drop target to the button
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auto drop_target = Gtk::DropTarget::create(DockablePane::get_type(), Gdk::DragAction::MOVE);
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drop_target->set_actions(Gdk::DragAction::MOVE);
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drop_target->set_propagation_phase(Gtk::PropagationPhase::CAPTURE);
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this->add_controller(drop_target);
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// Process dropped buttons by inserting them after the current button
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drop_target->signal_drop().connect([this](const Glib::ValueBase& value, double x, double y) {
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const auto &widget = static_cast<const Glib::Value<DockablePane*>&>(value).get();
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if(widget) {
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if(auto pane = dynamic_cast<DockablePane*>(widget)) {
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if(pane->layout != this->pane->layout) {
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// If the pane is not in the same layout manager, reject
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return false;
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}
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auto switcher = dynamic_cast<DockStackSwitcher*>(this->get_parent());
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if(switcher) {
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auto *stack = switcher->get_stack();
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// Move the button to the new position
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pane->redock(stack);
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if(switcher->get_orientation() == Gtk::Orientation::HORIZONTAL) {
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if(x < static_cast<double>(this->get_allocated_width()) / 2) {
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pane->insert_before(*stack, *this->pane);
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} else {
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pane->insert_after(*stack, *this->pane);
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}
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} else if(switcher->get_orientation() == Gtk::Orientation::VERTICAL) {
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if(y < static_cast<double>(this->get_allocated_height()) / 2) {
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pane->insert_before(*stack, *this->pane);
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} else {
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pane->insert_after(*stack, *this->pane);
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}
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}
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switcher->update_buttons();
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}
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}
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}
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return true; // Drop OK
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}, false);
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this->update_active_style();
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}
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void DockButton::update_active_style() {
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if(this->pane->get_stack()->get_visible_child_name() == this->pane->get_identifier()) {
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this->add_css_class("checked");
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this->add_css_class("gpanthera-dock-button-active");
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this->set_active(true);
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} else {
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this->remove_css_class("checked");
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this->remove_css_class("gpanthera-dock-button-active");
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this->set_active(false);
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}
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}
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DockButton::~DockButton() {
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active_style_handler.disconnect();
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}
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void DockStackSwitcher::update_buttons() {
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// Clear the old buttons
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auto old_buttons = collect_children(*this);
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for(auto *button : old_buttons) {
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remove(*button);
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}
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DockButton* first_child = nullptr;
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for(auto *widget = stack->get_first_child(); widget; widget = widget->get_next_sibling()) {
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if(auto pane = dynamic_cast<DockablePane*>(widget)) {
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auto *button = Gtk::make_managed<DockButton>(pane);
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if(!first_child) {
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first_child = button;
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} else {
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button->set_group(*first_child);
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}
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if(pane->get_identifier() != Glib::ustring("")) {
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append(*button);
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}
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}
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}
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}
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void DockStack::add_pane(DockablePane &child) {
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child.redock(this);
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}
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void ContentManager::add_stack(ContentStack *stack) {
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this->stacks.push_back(stack);
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}
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void ContentManager::remove_stack(ContentStack *stack) {
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this->stacks.erase(std::ranges::remove(this->stacks, stack).begin(), this->stacks.end());
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}
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void BaseStack::add(Gtk::Widget &child, const Glib::ustring &name) {
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Gtk::Stack::add(child, name);
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signal_child_added.emit(&child);
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}
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void BaseStack::add(Gtk::Widget &child) {
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Gtk::Stack::add(child);
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signal_child_added.emit(&child);
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}
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void BaseStack::remove(Gtk::Widget &child) {
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Gtk::Stack::remove(child);
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signal_child_removed.emit(&child);
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}
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ContentStack::ContentStack(std::shared_ptr<ContentManager> content_manager, std::function<bool(ContentPage*)> detach_handler)
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: BaseStack(), content_manager(std::move(content_manager)) {
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this->set_name("gpanthera_content_stack");
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this->content_manager->add_stack(this);
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if(detach_handler) {
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this->detach_handler = detach_handler;
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this->signal_detach.connect([this](ContentPage *widget) {
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return this->detach_handler(widget);
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});
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}
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drop_target = Gtk::DropTarget::create(ContentPage::get_type(), Gdk::DragAction::MOVE);
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this->add_controller(drop_target);
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// Process dropped buttons
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drop_target->signal_drop().connect([this](const Glib::ValueBase& value, double x, double y) {
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const auto &widget = static_cast<const Glib::Value<ContentPage*>&>(value).get();
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if(auto page = dynamic_cast<ContentPage*>(widget)) {
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page->lose_visibility();
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if(page->get_stack() == this && !this->get_first_child()->get_next_sibling()) {
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// Don't allow splitting if there are no more pages
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return false;
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}
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if(!(page->content_manager == this->content_manager)) {
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// If the page is not in the same content manager, reject
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return false;
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}
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double width = this->get_allocated_width(), height = this->get_allocated_height();
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// Split based on the drop position
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if(!(x < width / 4 || x > width * 3 / 4 || y < height / 4 || y > height * 3 / 4)) {
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// If the drop position is not at a quarter to the edges, move to the same stack
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this->add_page(*page);
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return true;
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}
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auto new_stack = Gtk::make_managed<ContentStack>(this->content_manager, this->detach_handler);
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auto this_notebook = dynamic_cast<ContentNotebook*>(this->get_parent());
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auto new_switcher = Gtk::make_managed<ContentTabBar>(new_stack, this_notebook ? this_notebook->get_switcher()->get_orientation() : Gtk::Orientation::HORIZONTAL, this_notebook->get_switcher()->get_extra_child_function());
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auto new_notebook = Gtk::make_managed<ContentNotebook>(new_stack, new_switcher, this_notebook ? this_notebook->get_tab_position() : Gtk::PositionType::TOP);
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new_stack->add_page(*page);
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new_stack->set_visible_child(*page);
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if(x < width / 4) {
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this->make_paned(Gtk::Orientation::HORIZONTAL, Gtk::PackType::START);
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if(auto paned = dynamic_cast<Gtk::Paned*>(this->get_parent()->get_parent())) {
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paned->set_start_child(*new_notebook);
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}
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} else if(x > width * 3 / 4) {
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this->make_paned(Gtk::Orientation::HORIZONTAL, Gtk::PackType::END);
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if(auto paned = dynamic_cast<Gtk::Paned*>(this->get_parent()->get_parent())) {
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paned->set_end_child(*new_notebook);
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}
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} else if(y < height / 4) {
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this->make_paned(Gtk::Orientation::VERTICAL, Gtk::PackType::START);
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if(auto paned = dynamic_cast<Gtk::Paned*>(this->get_parent()->get_parent())) {
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paned->set_start_child(*new_notebook);
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}
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} else if(y > height * 3 / 4) {
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this->make_paned(Gtk::Orientation::VERTICAL, Gtk::PackType::END);
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if(auto paned = dynamic_cast<Gtk::Paned*>(this->get_parent()->get_parent())) {
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paned->set_end_child(*new_notebook);
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}
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}
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}
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return true; // Drop OK
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}, false);
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}
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std::function<bool(ContentPage*)> ContentStack::get_detach_handler() const {
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return this->detach_handler;
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}
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ContentNotebook::ContentNotebook(ContentStack *stack, ContentTabBar *switcher, Gtk::PositionType tab_position) : Gtk::Box(), stack(stack), switcher(switcher), tab_position(tab_position) {
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this->append(*stack);
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if(tab_position == Gtk::PositionType::TOP || tab_position == Gtk::PositionType::BOTTOM) {
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this->set_orientation(Gtk::Orientation::VERTICAL);
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if(tab_position == Gtk::PositionType::TOP) {
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this->prepend(*switcher);
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} else if(tab_position == Gtk::PositionType::BOTTOM) {
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this->append(*switcher);
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}
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} else if(tab_position == Gtk::PositionType::LEFT || tab_position == Gtk::PositionType::RIGHT) {
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this->set_orientation(Gtk::Orientation::HORIZONTAL);
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if(tab_position == Gtk::PositionType::LEFT) {
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this->prepend(*switcher);
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} else if(tab_position == Gtk::PositionType::RIGHT) {
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this->append(*switcher);
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}
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}
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}
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void ContentStack::make_paned(Gtk::Orientation orientation, Gtk::PackType pack_type) {
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auto *parent = this->get_parent();
554
if(auto notebook = dynamic_cast<ContentNotebook*>(parent)) {
555
auto *paned = Gtk::make_managed<Gtk::Paned>(orientation);
556
if(auto parent_paned = dynamic_cast<Gtk::Paned*>(notebook->get_parent())) {
557
if(parent_paned->get_start_child() == notebook) {
558
notebook->unparent();
559
parent_paned->set_start_child(*paned);
560
} else if(parent_paned->get_end_child() == notebook) {
561
notebook->unparent();
562
parent_paned->set_end_child(*paned);
563
}
564
} else if(auto box = dynamic_cast<Gtk::Box*>(notebook->get_parent())) {
565
auto previous_child = notebook->get_prev_sibling();
566
box->remove(*notebook);
567
if(previous_child) {
568
paned->insert_after(*box, *previous_child);
569
} else {
570
box->prepend(*paned);
571
}
572
}
573
if(pack_type == Gtk::PackType::START) {
574
paned->set_end_child(*notebook);
575
} else if(pack_type == Gtk::PackType::END) {
576
paned->set_start_child(*notebook);
577
}
578
}
579
}
580
ContentTabBar::ContentTabBar(ContentStack *stack, Gtk::Orientation orientation, std::function<Gtk::Widget*(Gtk::Widget*)> extra_child_function) : Gtk::Box(orientation), stack(stack), extra_child_function(extra_child_function) {
582
this->get_style_context()->add_class("gpanthera-content-tab-bar");
583
this->set_margin_top(0);
584
this->set_margin_bottom(0);
585
this->set_margin_start(0);
586
this->set_margin_end(0);
587
auto update_callback = [this](Gtk::Widget*) {
589
this->update_buttons();
590
};
591
this->property_accessible_role().set_value(Gtk::Accessible::Role::TAB_LIST);
592
stack->signal_child_added.connect(update_callback);
593
stack->signal_child_removed.connect(update_callback);
594
drop_target = Gtk::DropTarget::create(ContentPage::get_type(), Gdk::DragAction::MOVE);
595
this->add_controller(drop_target);
596
// Process dropped buttons
597
drop_target->signal_drop().connect([this](const Glib::ValueBase& value, double x, double y) {
598
if(const auto &widget = static_cast<const Glib::Value<ContentPage*>&>(value).get()) {
599
if(auto page = dynamic_cast<ContentPage*>(widget)) {
600
this->stack->add_page(*page);
601
}
602
}
603
return true; // Drop OK
605
}, false);
606
scrolled_window = Gtk::make_managed<Gtk::ScrolledWindow>();
608
auto viewport = Gtk::make_managed<Gtk::Viewport>(nullptr, nullptr);
609
tab_box = Gtk::make_managed<Gtk::Box>(orientation);
610
this->prepend(*scrolled_window);
611
scrolled_window->set_child(*viewport);
612
viewport->set_child(*tab_box);
613
this->set_orientation(orientation);
615
if(this->extra_child_function) {
617
this->append(*this->extra_child_function(this));
618
}
619
}
620
std::function<Gtk::Widget*(Gtk::Widget*)> ContentTabBar::get_extra_child_function() const {
622
return this->extra_child_function;
623
}
624
void ContentTabBar::set_orientation(Gtk::Orientation orientation) {
626
this->Gtk::Box::set_orientation(orientation);
627
if(orientation == Gtk::Orientation::HORIZONTAL) {
628
scrolled_window->set_policy(Gtk::PolicyType::AUTOMATIC, Gtk::PolicyType::NEVER);
629
tab_box->set_orientation(Gtk::Orientation::HORIZONTAL);
630
scrolled_window->set_hexpand(true);
631
scrolled_window->set_vexpand(false);
632
} else if(orientation == Gtk::Orientation::VERTICAL) {
633
scrolled_window->set_policy(Gtk::PolicyType::NEVER, Gtk::PolicyType::AUTOMATIC);
634
tab_box->set_orientation(Gtk::Orientation::VERTICAL);
635
scrolled_window->set_vexpand(true);
636
scrolled_window->set_hexpand(false);
637
}
638
}
639
ContentTabBar::~ContentTabBar() {
641
add_handler.disconnect();
642
remove_handler.disconnect();
643
}
644
ContentStack *ContentTabBar::get_stack() const {
646
return stack;
647
}
648
void ContentTabBar::update_buttons() {
650
// Clear the old buttons
651
auto old_buttons = collect_children(*this->tab_box);
652
for(auto *button : old_buttons) {
653
if(auto *button_button = dynamic_cast<Gtk::Button*>(button)) {
654
button_button->unset_child();
655
tab_box->remove(*button);
656
}
657
}
658
ContentTab* first_child = nullptr;
659
for(auto *widget = stack->get_first_child(); widget; widget = widget->get_next_sibling()) {
660
if(auto page = dynamic_cast<ContentPage*>(widget)) {
661
auto *button = Gtk::make_managed<ContentTab>(page);
662
if(!first_child) {
663
first_child = button;
664
} else {
665
button->set_group(*first_child);
666
}
667
this->tab_box->append(*button);
668
}
669
}
670
}
671
void ContentStack::add_page(ContentPage &child) {
673
child.redock(this);
674
}
675
void ContentStack::remove_with_paned() {
677
if(auto paned = dynamic_cast<Gtk::Paned*>(this->get_parent()->get_parent())) {
678
Gtk::Widget *child = nullptr;
679
if(this->get_parent() == paned->get_start_child()) {
680
child = paned->get_end_child();
681
} else if(this->get_parent() == paned->get_end_child()) {
682
child = paned->get_start_child();
683
} else {
684
return;
685
}
686
g_object_ref(child->gobj()); // Prevent the child from being automatically deleted
688
paned->property_start_child().reset_value(); // Some hacks because the Gtkmm API isn't complete; it doesn't have an unset_start_child() or unset_end_child()
689
paned->property_end_child().reset_value();
690
if(child) {
692
if(auto parent_paned = dynamic_cast<Gtk::Paned*>(paned->get_parent())) {
693
if(parent_paned->get_start_child() == paned) {
694
parent_paned->set_start_child(*child);
695
} else if(parent_paned->get_end_child() == paned) {
696
parent_paned->set_end_child(*child);
697
}
698
} else if(auto box = dynamic_cast<Gtk::Box*>(paned->get_parent())) {
699
child->insert_after(*box, *paned);
700
paned->unparent();
701
g_object_unref(child->gobj());
702
}
703
}
704
}
705
}
706
ContentTab::ContentTab(ContentPage *page) : Gtk::ToggleButton(), page(page) {
708
this->set_child(*page->get_tab_widget());
709
this->property_accessible_role().set_value(Gtk::Accessible::Role::TAB);
710
this->set_halign(Gtk::Align::CENTER);
711
this->set_valign(Gtk::Align::CENTER);
712
this->get_style_context()->add_class("toggle");
713
this->get_style_context()->add_class("gpanthera-content-tab");
714
// Add/remove CSS classes when the pane is shown/hidden
715
active_style_handler = this->page->get_stack()->property_visible_child().signal_changed().connect([this]() {
716
this->update_active_style();
717
});
718
drag_source = Gtk::DragSource::create();
719
drag_source->set_exclusive(false);
720
// This is to prevent the click handler from taking over grabbing the button
721
drag_source->set_propagation_phase(Gtk::PropagationPhase::CAPTURE);
722
value.init(ContentPage::get_type());
723
value.set(page);
724
// Add the drag source to the button
725
this->add_controller(drag_source);
726
this->signal_clicked().connect([this, page]() {
727
page->get_stack()->set_visible_child(*page);
728
update_active_style();
729
});
730
// Switch tabs on depress
731
auto gesture_click = Gtk::GestureClick::create();
732
gesture_click->set_button(1);
733
this->add_controller(gesture_click);
734
gesture_click->signal_pressed().connect([this, page](int num_presses, double x, double y) {
735
page->get_stack()->set_visible_child(*page);
736
update_active_style();
737
});
738
// Provide the drag data
739
drag_source->signal_prepare().connect([this](double, double) {
740
drag_source->set_actions(Gdk::DragAction::MOVE);
741
auto const paintable = Gtk::WidgetPaintable::create();
742
paintable->set_widget(*this);
743
drag_source->set_icon(paintable->get_current_image(), 0, 0);
744
return Gdk::ContentProvider::create(value);
745
}, false);
746
update_active_style();
747
drag_source->signal_drag_begin().connect([this](const Glib::RefPtr<Gdk::Drag>&) {
748
this->set_opacity(0);
749
}, false);
750
drop_target = Gtk::DropTarget::create(ContentPage::get_type(), Gdk::DragAction::MOVE);
751
// Process dropped buttons by inserting them after the current button
752
drop_target->signal_drop().connect([this](const Glib::ValueBase& value, double x, double y) {
753
const auto &widget = static_cast<const Glib::Value<ContentPage*>&>(value).get();
754
if(widget) {
756
if(auto page = dynamic_cast<ContentPage*>(widget)) {
757
if(page->content_manager != this->page->content_manager) {
758
// If the pane is not in the same layout manager, reject
759
return false;
760
}
761
auto switcher = dynamic_cast<ContentTabBar*>(this->get_parent()->get_parent()->get_parent()->get_parent());
762
if(switcher) {
763
auto *stack = switcher->get_stack();
764
// Move the button to the new position
765
page->redock(stack);
766
if(switcher->get_orientation() == Gtk::Orientation::HORIZONTAL) {
767
if(x < static_cast<double>(this->get_allocated_width()) / 2) {
768
page->insert_before(*stack, *this->page);
769
} else {
770
page->insert_after(*stack, *this->page);
771
}
772
} else if(switcher->get_orientation() == Gtk::Orientation::VERTICAL) {
773
if(y < static_cast<double>(this->get_allocated_height()) / 2) {
774
page->insert_before(*stack, *this->page);
775
} else {
776
page->insert_after(*stack, *this->page);
777
}
778
}
779
switcher->update_buttons();
781
}
782
}
783
}
784
return true; // Drop OK
786
}, false);
787
this->add_controller(drop_target);
788
// Pop out if dragged to an external location
789
drag_source->signal_drag_cancel().connect([this](const Glib::RefPtr<Gdk::Drag>&, Gdk::DragCancelReason reason) {
790
if(reason == Gdk::DragCancelReason::NO_TARGET) {
791
auto stack = dynamic_cast<ContentStack*>(this->page->get_stack());
792
bool result = stack->signal_detach.emit(this->page);
793
if(!result) {
794
this->set_opacity(1);
795
}
796
return result;
797
}
798
this->set_opacity(1);
799
return false;
800
}, false);
801
// Provide a context menu
803
context_menu = Gio::Menu::create();
804
auto action_group = Gio::SimpleActionGroup::create();
805
this->insert_action_group("win", action_group);
806
auto close_action = Gio::SimpleAction::create("close");
808
close_action->signal_activate().connect([this](const Glib::VariantBase&) {
809
if(!this->page->signal_close.emit()) {
810
if(this->page->get_next_sibling()) {
811
this->page->get_stack()->set_visible_child(*this->page->get_next_sibling());
812
} else if(this->page->get_prev_sibling()) {
813
this->page->get_stack()->set_visible_child(*this->page->get_prev_sibling());
814
}
815
this->page->redock(nullptr);
816
}
817
});
818
action_group->add_action(close_action);
819
context_menu->append(_("Close"), "win.close");
820
auto close_all_action = Gio::SimpleAction::create("close-all");
822
close_all_action->signal_activate().connect([this](const Glib::VariantBase&) {
823
for(auto page : collect_children(*this->page->get_stack())) {
824
if(auto content_page = dynamic_cast<ContentPage*>(page)) {
825
if(!content_page->signal_close.emit()) {
826
content_page->redock(nullptr);
827
}
828
}
829
}
830
});
831
action_group->add_action(close_all_action);
832
context_menu->append(_("Close all"), "win.close-all");
833
auto close_others_action = Gio::SimpleAction::create("close-others");
835
close_others_action->signal_activate().connect([this](const Glib::VariantBase&) {
836
for(auto page : collect_children(*this->page->get_stack())) {
837
if(auto content_page = dynamic_cast<ContentPage*>(page)) {
838
if(content_page != this->page && !content_page->signal_close.emit()) {
839
content_page->redock(nullptr);
840
}
841
}
842
}
843
});
844
action_group->add_action(close_others_action);
845
context_menu->append(_("Close others"), "win.close-others");
846
auto detach_action = Gio::SimpleAction::create("detach");
848
detach_action->signal_activate().connect([this](const Glib::VariantBase&) {
849
auto stack = dynamic_cast<ContentStack*>(this->page->get_stack());
850
bool result = stack->signal_detach.emit(this->page);
851
});
852
action_group->add_action(detach_action);
853
context_menu->append(_("New window"), "win.detach");
854
// TODO: Add more actions: "New window", "Split left", "Split right", "Split top", "Split bottom", "Close all", "Close others", "Close to the right", "Close to the left"
856
this->insert_action_group("win", action_group);
857
// Attach the context menu to the button
858
auto context_menu_signal = add_context_menu(*this);
859
context_menu_signal.connect([this, action_group](double x, double y) {
860
if(this->context_menu) {
861
auto popover = Gtk::make_managed<Gtk::PopoverMenu>();
862
popover->set_menu_model(context_menu);
863
popover->set_parent(*this);
864
popover->set_has_arrow(false);
865
popover->set_halign(Gtk::Align::START);
866
popover->set_pointing_to(Gdk::Rectangle(x, y, 1, 1));
867
popover->popup();
868
}
869
});
870
}
871
void ContentTab::update_active_style() {
873
if(this->page->get_stack()->get_visible_child() == this->page) {
874
this->add_css_class("checked");
875
this->add_css_class("gpanthera-dock-button-active");
876
this->set_active(true);
877
} else {
878
this->remove_css_class("checked");
879
this->remove_css_class("gpanthera-dock-button-active");
880
this->set_active(false);
881
}
882
}
883
ContentTab::~ContentTab() {
885
active_style_handler.disconnect();
886
}
887
Gtk::Widget *ContentPage::get_tab_widget() const {
889
return this->tab_widget;
890
}
891
ContentStack *ContentPage::get_stack() const {
893
return this->stack;
894
}
895
void ContentPage::lose_visibility() {
897
if(this->get_next_sibling()) {
898
this->get_stack()->set_visible_child(*this->get_next_sibling());
899
} else if(this->get_prev_sibling()) {
900
this->get_stack()->set_visible_child(*this->get_prev_sibling());
901
}
902
}
903
void ContentPage::redock(ContentStack *stack) {
905
if(stack == nullptr) {
906
if(this->stack) {
907
this->stack->remove(*this);
908
if(dynamic_cast<ContentNotebook*>(this->stack->get_parent()) && !this->stack->get_first_child()) {
909
this->stack->remove_with_paned();
910
}
911
}
912
auto old_stack = this->stack;
913
if(old_stack) {
914
if(!old_stack->get_first_child()) {
915
old_stack->signal_leave_empty.emit();
916
}
917
}
918
this->stack = nullptr;
919
this->last_stack = nullptr;
920
return;
921
}
922
// Check if the stack is now empty, in which case we should remove it
923
if(this->stack == stack) {
924
return;
925
}
926
if(this->stack != nullptr) {
927
if(dynamic_cast<ContentNotebook*>(this->stack->get_parent()) && (!this->stack->get_first_child() || (this->stack->get_first_child() == this && !this->stack->get_first_child()->get_next_sibling()))) {
928
this->stack->remove(*this);
929
this->stack->remove_with_paned();
930
} else if(this->get_parent() == this->stack) {
931
this->stack->remove(*this);
932
}
933
}
934
auto old_stack = this->stack;
935
this->stack = stack;
936
this->last_stack = stack;
937
this->stack->add(*this);
938
if(old_stack) {
939
if(!old_stack->get_first_child()) {
940
old_stack->signal_leave_empty.emit();
941
}
942
}
943
}
944
ContentPage::ContentPage(std::shared_ptr<ContentManager> content_manager, ContentStack *stack, Gtk::Widget *child, Gtk::Widget *tab_widget) :
946
Gtk::Overlay(), content_manager(std::move(content_manager)), child(child), tab_widget(tab_widget) {
947
this->set_name("gpanthera_content_page");
948
this->set_child(*child);
949
this->set_tab_widget(tab_widget);
950
this->set_margin_top(0);
951
this->set_margin_bottom(0);
952
this->set_margin_start(0);
953
this->set_margin_end(0);
954
if(stack) {
955
stack->add_page(*this);
956
this->content_manager->add_stack(this->stack);
957
}
958
}
959
ContentManager::ContentManager() : Glib::ObjectBase("ContentManager") {
961
}
962
void ContentPage::set_tab_widget(Gtk::Widget *tab_widget) {
964
this->tab_widget = tab_widget;
965
}
966
ContentWindow::ContentWindow(ContentNotebook *notebook) : notebook(notebook) {
968
this->set_child(*notebook);
969
this->set_decorated(true);
970
this->set_resizable(true);
971
}
972
Gtk::PositionType ContentNotebook::get_tab_position() const {
974
return this->tab_position;
975
}
976
ContentTabBar *ContentNotebook::get_switcher() const {
978
return this->switcher;
979
}
980
ContentStack *ContentNotebook::get_stack() const {
982
return this->stack;
983
}
984
} // namespace gPanthera
985