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);
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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();
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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) : Gtk::Box(orientation), stack(stack) {
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
}
607
ContentTabBar::~ContentTabBar() {
609
add_handler.disconnect();
610
remove_handler.disconnect();
611
}
612
ContentStack *ContentTabBar::get_stack() const {
614
return stack;
615
}
616
void ContentTabBar::update_buttons() {
618
// Clear the old buttons
619
auto old_buttons = collect_children(*this);
620
for(auto *button : old_buttons) {
621
if(auto *button_button = dynamic_cast<Gtk::Button*>(button)) {
622
button_button->unset_child();
623
}
624
remove(*button);
625
}
626
ContentTab* first_child = nullptr;
627
for(auto *widget = stack->get_first_child(); widget; widget = widget->get_next_sibling()) {
628
if(auto page = dynamic_cast<ContentPage*>(widget)) {
629
auto *button = Gtk::make_managed<ContentTab>(page);
630
if(!first_child) {
631
first_child = button;
632
} else {
633
button->set_group(*first_child);
634
}
635
this->append(*button);
636
}
637
}
638
}
639
void ContentStack::add_page(ContentPage &child) {
641
child.redock(this);
642
}
643
void ContentStack::remove_with_paned() {
645
if(auto paned = dynamic_cast<Gtk::Paned*>(this->get_parent()->get_parent())) {
646
Gtk::Widget *child = nullptr;
647
if(this->get_parent() == paned->get_start_child()) {
648
child = paned->get_end_child();
649
} else if(this->get_parent() == paned->get_end_child()) {
650
child = paned->get_start_child();
651
} else {
652
return;
653
}
654
g_object_ref(child->gobj()); // Prevent the child from being automatically deleted
656
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()
657
paned->property_end_child().reset_value();
658
if(child) {
660
if(auto parent_paned = dynamic_cast<Gtk::Paned*>(paned->get_parent())) {
661
if(parent_paned->get_start_child() == paned) {
662
parent_paned->set_start_child(*child);
663
} else if(parent_paned->get_end_child() == paned) {
664
parent_paned->set_end_child(*child);
665
}
666
} else if(auto box = dynamic_cast<Gtk::Box*>(paned->get_parent())) {
667
child->insert_after(*box, *paned);
668
paned->unparent();
669
g_object_unref(child->gobj());
670
}
671
}
672
}
673
}
674
ContentTab::ContentTab(ContentPage *page) : Gtk::ToggleButton(), page(page) {
676
this->set_child(*page->get_tab_widget());
677
this->property_accessible_role().set_value(Gtk::Accessible::Role::TAB);
678
this->set_halign(Gtk::Align::CENTER);
679
this->set_valign(Gtk::Align::CENTER);
680
this->get_style_context()->add_class("toggle");
681
this->get_style_context()->add_class("gpanthera-content-tab");
682
// Add/remove CSS classes when the pane is shown/hidden
683
active_style_handler = this->page->get_stack()->property_visible_child().signal_changed().connect([this]() {
684
this->update_active_style();
685
});
686
drag_source = Gtk::DragSource::create();
687
drag_source->set_exclusive(false);
688
// This is to prevent the click handler from taking over grabbing the button
689
drag_source->set_propagation_phase(Gtk::PropagationPhase::CAPTURE);
690
value.init(ContentPage::get_type());
691
value.set(page);
692
// Add the drag source to the button
693
this->add_controller(drag_source);
694
this->signal_clicked().connect([this, page]() {
695
page->get_stack()->set_visible_child(*page);
696
update_active_style();
697
});
698
// Switch tabs on depress
699
auto gesture_click = Gtk::GestureClick::create();
700
gesture_click->set_button(1);
701
this->add_controller(gesture_click);
702
gesture_click->signal_pressed().connect([this, page](int num_presses, double x, double y) {
703
page->get_stack()->set_visible_child(*page);
704
update_active_style();
705
});
706
// Provide the drag data
707
drag_source->signal_prepare().connect([this](double, double) {
708
drag_source->set_actions(Gdk::DragAction::MOVE);
709
auto const paintable = Gtk::WidgetPaintable::create();
710
paintable->set_widget(*this);
711
drag_source->set_icon(paintable->get_current_image(), 0, 0);
712
return Gdk::ContentProvider::create(value);
713
}, false);
714
update_active_style();
715
drag_source->signal_drag_begin().connect([this](const Glib::RefPtr<Gdk::Drag>&) {
716
this->set_opacity(0);
717
}, false);
718
drop_target = Gtk::DropTarget::create(ContentPage::get_type(), Gdk::DragAction::MOVE);
719
// Process dropped buttons by inserting them after the current button
720
drop_target->signal_drop().connect([this](const Glib::ValueBase& value, double x, double y) {
721
const auto &widget = static_cast<const Glib::Value<ContentPage*>&>(value).get();
722
if(widget) {
724
if(auto page = dynamic_cast<ContentPage*>(widget)) {
725
if(page->content_manager != this->page->content_manager) {
726
// If the pane is not in the same layout manager, reject
727
return false;
728
}
729
auto switcher = dynamic_cast<ContentTabBar*>(this->get_parent());
730
if(switcher) {
731
auto *stack = switcher->get_stack();
732
// Move the button to the new position
733
page->redock(stack);
734
if(switcher->get_orientation() == Gtk::Orientation::HORIZONTAL) {
735
if(x < static_cast<double>(this->get_allocated_width()) / 2) {
736
page->insert_before(*stack, *this->page);
737
} else {
738
page->insert_after(*stack, *this->page);
739
}
740
} else if(switcher->get_orientation() == Gtk::Orientation::VERTICAL) {
741
if(y < static_cast<double>(this->get_allocated_height()) / 2) {
742
page->insert_before(*stack, *this->page);
743
} else {
744
page->insert_after(*stack, *this->page);
745
}
746
}
747
switcher->update_buttons();
749
}
750
}
751
}
752
return true; // Drop OK
754
}, false);
755
this->add_controller(drop_target);
756
// Pop out if dragged to an external location
757
drag_source->signal_drag_cancel().connect([this](const Glib::RefPtr<Gdk::Drag>&, Gdk::DragCancelReason reason) {
758
if(reason == Gdk::DragCancelReason::NO_TARGET) {
759
auto stack = dynamic_cast<ContentStack*>(this->page->get_stack());
760
bool result = stack->signal_detach.emit(this->page);
761
if(!result) {
762
this->set_opacity(1);
763
}
764
return result;
765
}
766
this->set_opacity(1);
767
return false;
768
}, false);
769
// Provide a context menu
771
context_menu = Gio::Menu::create();
772
auto action_group = Gio::SimpleActionGroup::create();
773
this->insert_action_group("win", action_group);
774
auto close_action = Gio::SimpleAction::create("close");
776
close_action->signal_activate().connect([this](const Glib::VariantBase&) {
777
if(!this->page->signal_close.emit()) {
778
if(this->page->get_next_sibling()) {
779
this->page->get_stack()->set_visible_child(*this->page->get_next_sibling());
780
} else if(this->page->get_prev_sibling()) {
781
this->page->get_stack()->set_visible_child(*this->page->get_prev_sibling());
782
}
783
this->page->redock(nullptr);
784
}
785
});
786
action_group->add_action(close_action);
787
context_menu->append(_("Close"), "win.close");
788
auto close_all_action = Gio::SimpleAction::create("close-all");
790
close_all_action->signal_activate().connect([this](const Glib::VariantBase&) {
791
for(auto page : collect_children(*this->page->get_stack())) {
792
if(auto content_page = dynamic_cast<ContentPage*>(page)) {
793
if(!content_page->signal_close.emit()) {
794
content_page->redock(nullptr);
795
}
796
}
797
}
798
});
799
action_group->add_action(close_all_action);
800
context_menu->append(_("Close all"), "win.close-all");
801
auto close_others_action = Gio::SimpleAction::create("close-others");
803
close_others_action->signal_activate().connect([this](const Glib::VariantBase&) {
804
for(auto page : collect_children(*this->page->get_stack())) {
805
if(auto content_page = dynamic_cast<ContentPage*>(page)) {
806
if(content_page != this->page && !content_page->signal_close.emit()) {
807
content_page->redock(nullptr);
808
}
809
}
810
}
811
});
812
action_group->add_action(close_others_action);
813
context_menu->append(_("Close others"), "win.close-others");
814
auto detach_action = Gio::SimpleAction::create("detach");
816
detach_action->signal_activate().connect([this](const Glib::VariantBase&) {
817
auto stack = dynamic_cast<ContentStack*>(this->page->get_stack());
818
bool result = stack->signal_detach.emit(this->page);
819
});
820
action_group->add_action(detach_action);
821
context_menu->append(_("New window"), "win.detach");
822
// 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"
824
this->insert_action_group("win", action_group);
825
// Attach the context menu to the button
826
auto context_menu_signal = add_context_menu(*this);
827
context_menu_signal.connect([this, action_group](double x, double y) {
828
if(this->context_menu) {
829
auto popover = Gtk::make_managed<Gtk::PopoverMenu>();
830
popover->set_menu_model(context_menu);
831
popover->set_parent(*this);
832
popover->set_has_arrow(false);
833
popover->set_halign(Gtk::Align::START);
834
popover->set_pointing_to(Gdk::Rectangle(x, y, 1, 1));
835
popover->popup();
836
}
837
});
838
}
839
void ContentTab::update_active_style() {
841
if(this->page->get_stack()->get_visible_child() == this->page) {
842
this->add_css_class("checked");
843
this->add_css_class("gpanthera-dock-button-active");
844
this->set_active(true);
845
} else {
846
this->remove_css_class("checked");
847
this->remove_css_class("gpanthera-dock-button-active");
848
this->set_active(false);
849
}
850
}
851
ContentTab::~ContentTab() {
853
active_style_handler.disconnect();
854
}
855
Gtk::Widget *ContentPage::get_tab_widget() const {
857
return this->tab_widget;
858
}
859
ContentStack *ContentPage::get_stack() const {
861
return this->stack;
862
}
863
void ContentPage::lose_visibility() {
865
if(this->get_next_sibling()) {
866
this->get_stack()->set_visible_child(*this->get_next_sibling());
867
} else if(this->get_prev_sibling()) {
868
this->get_stack()->set_visible_child(*this->get_prev_sibling());
869
}
870
}
871
void ContentPage::redock(ContentStack *stack) {
873
if(stack == nullptr) {
874
if(this->stack) {
875
this->stack->remove(*this);
876
if(dynamic_cast<ContentNotebook*>(this->stack->get_parent()) && !this->stack->get_first_child()) {
877
this->stack->remove_with_paned();
878
}
879
}
880
auto old_stack = this->stack;
881
if(old_stack) {
882
if(!old_stack->get_first_child()) {
883
old_stack->signal_leave_empty.emit();
884
}
885
}
886
this->stack = nullptr;
887
this->last_stack = nullptr;
888
return;
889
}
890
// Check if the stack is now empty, in which case we should remove it
891
if(this->stack == stack) {
892
return;
893
}
894
if(this->stack != nullptr) {
895
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()))) {
896
this->stack->remove(*this);
897
this->stack->remove_with_paned();
898
} else if(this->get_parent() == this->stack) {
899
this->stack->remove(*this);
900
}
901
}
902
auto old_stack = this->stack;
903
this->stack = stack;
904
this->last_stack = stack;
905
this->stack->add(*this);
906
if(old_stack) {
907
if(!old_stack->get_first_child()) {
908
old_stack->signal_leave_empty.emit();
909
}
910
}
911
}
912
Gtk::Widget *ContentPage::get_child() const {
914
return this->child;
915
}
916
ContentPage::ContentPage(std::shared_ptr<ContentManager> content_manager, ContentStack *stack, Gtk::Widget *child, Gtk::Widget *tab_widget) :
918
Gtk::Box(Gtk::Orientation::VERTICAL, 0), content_manager(std::move(content_manager)), child(child), tab_widget(tab_widget) {
919
this->set_name("gpanthera_content_page");
920
this->append(*child);
921
this->set_tab_widget(tab_widget);
922
this->set_margin_top(0);
923
this->set_margin_bottom(0);
924
this->set_margin_start(0);
925
this->set_margin_end(0);
926
if(stack) {
927
stack->add_page(*this);
928
this->content_manager->add_stack(this->stack);
929
}
930
}
931
ContentManager::ContentManager() : Glib::ObjectBase("ContentManager") {
933
}
934
void ContentPage::set_tab_widget(Gtk::Widget *tab_widget) {
936
this->tab_widget = tab_widget;
937
}
938
ContentWindow::ContentWindow(ContentNotebook *notebook) : notebook(notebook) {
940
this->set_child(*notebook);
941
this->set_decorated(true);
942
this->set_resizable(true);
943
}
944
Gtk::PositionType ContentNotebook::get_tab_position() const {
946
return this->tab_position;
947
}
948
ContentTabBar *ContentNotebook::get_switcher() const {
950
return this->switcher;
951
}
952
ContentStack *ContentNotebook::get_stack() const {
954
return this->stack;
955
}
956
} // namespace gPanthera
957