forked from quickshell/quickshell
69 lines
2.7 KiB
C++
69 lines
2.7 KiB
C++
#include "platformmenu.hpp"
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#include <private/qwayland-xdg-shell.h>
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#include <qmargins.h>
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#include <qnamespace.h>
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#include <qsize.h>
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#include <qvariant.h>
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#include <qwindow.h>
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#include "../core/platformmenu.hpp"
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#include "../core/platformmenu_p.hpp"
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using namespace qs::menu::platform;
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namespace {
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// fixes positioning of submenus when hitting screen edges
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void platformMenuHook(PlatformMenuQMenu* menu) {
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auto* window = menu->windowHandle();
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Qt::Edges anchor;
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Qt::Edges gravity;
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if (auto* containingMenu = menu->containingMenu) {
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auto geom = containingMenu->actionGeometry(menu->menuAction());
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// Forces action rects to be refreshed. Without this the geometry is intermittently null.
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containingMenu->sizeHint();
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// use the first action to find the offsets relative to the containing window
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auto baseGeom = containingMenu->actionGeometry(containingMenu->actions().first());
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geom += QMargins(0, baseGeom.top(), 0, baseGeom.top());
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window->setProperty("_q_waylandPopupAnchorRect", geom);
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auto sideEdge = menu->isRightToLeft() ? Qt::LeftEdge : Qt::RightEdge;
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anchor = Qt::TopEdge | sideEdge;
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gravity = Qt::BottomEdge | sideEdge;
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} else if (auto* parent = window->transientParent()) {
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// abort if already set by a PopupAnchor
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if (window->property("_q_waylandPopupAnchorRect").isValid()) return;
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// The menu geometry will be adjusted to flip internally by qt already, but it ends up off by
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// one pixel which causes the compositor to also flip which results in the menu being placed
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// left of the edge by its own width. To work around this the intended position is stored prior
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// to tampering by qt.
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auto anchorRect = QRect(menu->targetPosition - parent->geometry().topLeft(), QSize(1, 1));
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window->setProperty("_q_waylandPopupAnchorRect", anchorRect);
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anchor = Qt::BottomEdge | Qt::RightEdge;
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gravity = Qt::BottomEdge | Qt::RightEdge;
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}
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window->setProperty("_q_waylandPopupAnchor", QVariant::fromValue(anchor));
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window->setProperty("_q_waylandPopupGravity", QVariant::fromValue(gravity));
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auto constraintAdjustment = QtWayland::xdg_positioner::constraint_adjustment_flip_x
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| QtWayland::xdg_positioner::constraint_adjustment_flip_y
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| QtWayland::xdg_positioner::constraint_adjustment_slide_x
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| QtWayland::xdg_positioner::constraint_adjustment_slide_y
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| QtWayland::xdg_positioner::constraint_adjustment_resize_x
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| QtWayland::xdg_positioner::constraint_adjustment_resize_y;
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window->setProperty("_q_waylandPopupConstraintAdjustment", constraintAdjustment);
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}
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} // namespace
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void installPlatformMenuHook() { PlatformMenuEntry::registerCreationHook(&platformMenuHook); }
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