927 lines
32 KiB
C++
927 lines
32 KiB
C++
// Copyright (c) 2012-2024 Wojciech Figat. All rights reserved.
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#if PLATFORM_SDL && PLATFORM_LINUX
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#include "Engine/Platform/Platform.h"
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#include "SDLWindow.h"
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#include "Engine/Platform/IGuiData.h"
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#include "Engine/Engine/Engine.h"
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#include "Engine/Platform/SDL/SDLClipboard.h"
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#include "Engine/Profiler/ProfilerCPU.h"
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#include "Engine/Core/Log.h"
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#include "Engine/Core/Collections/Array.h"
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#include "Engine/Engine/CommandLine.h"
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#include "Engine/Platform/WindowsManager.h"
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#include "Engine/Platform/Linux/IncludeX11.h"
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#include <SDL3/SDL_video.h>
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#include <SDL3/SDL_system.h>
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#include <SDL3/SDL_hints.h>
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#include <SDL3/SDL_timer.h>
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Delegate<void*> LinuxPlatform::xEventReceived;
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// Missing Wayland features:
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// - Application icon (xdg-toplevel-icon-v1) https://github.com/libsdl-org/SDL/pull/9584
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// - Window positioning and position tracking
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// - Color picker (xdg-desktop-portal?) https://flatpak.github.io/xdg-desktop-portal/docs/doc-org.freedesktop.portal.Screenshot.html
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// -
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namespace
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{
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bool UseWayland = false;
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X11::Display* xDisplay = nullptr;
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X11::XIM IM = nullptr;
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X11::XIC IC = nullptr;
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X11::Atom xAtomDeleteWindow;
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X11::Atom xAtomXdndEnter;
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X11::Atom xAtomXdndPosition;
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X11::Atom xAtomXdndLeave;
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X11::Atom xAtomXdndDrop;
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X11::Atom xAtomXdndActionCopy;
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X11::Atom xAtomXdndStatus;
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X11::Atom xAtomXdndSelection;
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X11::Atom xAtomXdndFinished;
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X11::Atom xAtomXdndAware;
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X11::Atom xAtomWmState;
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X11::Atom xAtomWmStateHidden;
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X11::Atom xAtomWmStateMaxVert;
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X11::Atom xAtomWmStateMaxHorz;
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X11::Atom xAtomWmWindowOpacity;
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X11::Atom xAtomWmName;
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X11::Atom xAtomAtom;
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X11::Atom xAtomClipboard;
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X11::Atom xAtomPrimary;
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X11::Atom xAtomTargets;
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X11::Atom xAtomText;
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X11::Atom xAtomString;
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X11::Atom xAtomUTF8String;
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X11::Atom xAtomXselData;
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X11::Atom xDnDRequested = 0;
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X11::Window xDndSourceWindow = 0;
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DragDropEffect xDndResult;
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Float2 xDndPos;
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int32 xDnDVersion = 0;
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int32 XFixesSelectionNotifyEvent = 0;
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}
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class LinuxDropFilesData : public IGuiData
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{
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public:
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Array<String> Files;
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Type GetType() const override
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{
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return Type::Files;
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}
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String GetAsText() const override
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{
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return String::Empty;
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}
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void GetAsFiles(Array<String>* files) const override
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{
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files->Add(Files);
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}
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};
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class LinuxDropTextData : public IGuiData
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{
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public:
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StringView Text;
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Type GetType() const override
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{
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return Type::Text;
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}
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String GetAsText() const override
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{
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return String(Text);
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}
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void GetAsFiles(Array<String>* files) const override
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{
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}
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};
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struct Property
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{
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unsigned char* data;
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int format, nitems;
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X11::Atom type;
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};
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namespace Impl
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{
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StringAnsi ClipboardText;
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void ClipboardGetText(String& result, X11::Atom source, X11::Atom atom, X11::Window window)
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{
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X11::Window selectionOwner = X11::XGetSelectionOwner(xDisplay, source);
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if (selectionOwner == 0)
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{
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// No copy owner
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return;
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}
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if (selectionOwner == window)
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{
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// Copy/paste from self
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result.Set(ClipboardText.Get(), ClipboardText.Length());
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return;
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}
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// Send event to get data from the owner
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int format;
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unsigned long N, size;
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char* data;
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X11::Atom target;
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X11::XEvent event;
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X11::XConvertSelection(xDisplay, xAtomClipboard, atom, xAtomXselData, window, CurrentTime);
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X11::XSync(xDisplay, 0);
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if (X11::XCheckTypedEvent(xDisplay, SelectionNotify, &event))
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{
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if (event.xselection.selection != xAtomClipboard)
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return;
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if (event.xselection.property)
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{
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X11::XGetWindowProperty(event.xselection.display, event.xselection.requestor, event.xselection.property, 0L,(~0L), 0, AnyPropertyType, &target, &format, &size, &N,(unsigned char**)&data);
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if (target == xAtomUTF8String || target == xAtomString)
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{
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// Got text to paste
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result.Set(data , size);
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X11::XFree(data);
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}
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X11::XDeleteProperty(event.xselection.display, event.xselection.requestor, event.xselection.property);
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}
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}
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}
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Property ReadProperty(X11::Display* display, X11::Window window, X11::Atom property)
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{
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X11::Atom readType = 0;
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int readFormat = 0;
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unsigned long nitems = 0;
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unsigned long readBytes = 0;
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unsigned char* result = nullptr;
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int bytesCount = 1024;
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if (property != 0)
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{
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do
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{
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if (result != nullptr)
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X11::XFree(result);
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XGetWindowProperty(display, window, property, 0, bytesCount, 0, AnyPropertyType, &readType, &readFormat, &nitems, &readBytes, &result);
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bytesCount *= 2;
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} while (readBytes != 0);
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}
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Property p = { result, readFormat, (int)nitems, readType };
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return p;
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}
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static X11::Atom SelectTargetFromList(X11::Display* display, const char* targetType, X11::Atom* list, int count)
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{
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for (int i = 0; i < count; i++)
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{
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X11::Atom atom = list[i];
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if (atom != 0 && StringAnsi(XGetAtomName(display, atom)) == targetType)
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return atom;
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}
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return 0;
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}
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static X11::Atom SelectTargetFromAtoms(X11::Display* display, const char* targetType, X11::Atom t1, X11::Atom t2, X11::Atom t3)
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{
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if (t1 != 0 && StringAnsi(XGetAtomName(display, t1)) == targetType)
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return t1;
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if (t2 != 0 && StringAnsi(XGetAtomName(display, t2)) == targetType)
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return t2;
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if (t3 != 0 && StringAnsi(XGetAtomName(display, t3)) == targetType)
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return t3;
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return 0;
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}
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static X11::Window FindAppWindow(X11::Display* display, X11::Window w)
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{
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int nprops, i = 0;
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X11::Atom* a;
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if (w == 0)
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return 0;
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a = X11::XListProperties(display, w, &nprops);
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for (i = 0; i < nprops; i++)
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{
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if (a[i] == xAtomXdndAware)
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break;
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}
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if (nprops)
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X11::XFree(a);
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if (i != nprops)
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return w;
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X11::Window child, wtmp;
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int tmp;
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unsigned int utmp;
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X11::XQueryPointer(display, w, &wtmp, &child, &tmp, &tmp, &tmp, &tmp, &utmp);
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return FindAppWindow(display, child);
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}
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static Float2 GetX11MousePosition()
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{
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if (!xDisplay)
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return Float2::Zero;
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int32 x = 0, y = 0;
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uint32 screenCount = (uint32)X11::XScreenCount(xDisplay);
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for (uint32 i = 0; i < screenCount; i++)
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{
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X11::Window outRoot, outChild;
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int32 childX, childY;
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uint32 mask;
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if (X11::XQueryPointer(xDisplay, X11::XRootWindow(xDisplay, i), &outRoot, &outChild, &x, &y, &childX, &childY, &mask))
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break;
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}
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return Float2((float)x, (float)y);
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}
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}
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DragDropEffect Window::DoDragDrop(const StringView& data)
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{
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if (CommandLine::Options.Headless)
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return DragDropEffect::None;
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if (UseWayland)
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return DoDragDropWayland(data);
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else
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return DoDragDropX11(data);
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}
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DragDropEffect Window::DoDragDropWayland(const StringView& data)
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{
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// TODO: Wayland
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LOG(Warning, "Wayland Drag and drop is not implemented yet.");
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return DragDropEffect::None;
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}
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DragDropEffect Window::DoDragDropX11(const StringView& data)
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{
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auto cursorWrong = X11::XCreateFontCursor(xDisplay, 54);
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auto cursorTransient = X11::XCreateFontCursor(xDisplay, 24);
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auto cursorGood = X11::XCreateFontCursor(xDisplay, 4);
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Array<X11::Atom, FixedAllocation<3>> formats;
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formats.Add(X11::XInternAtom(xDisplay, "text/plain", 0));
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formats.Add(xAtomText);
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formats.Add(xAtomString);
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StringAnsi dataAnsi(data);
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LinuxDropTextData dropData;
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dropData.Text = data;
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#if !PLATFORM_SDL
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X11::Window mainWindow = _window;
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#else
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X11::Window mainWindow = static_cast<X11::Window>(GetX11WindowHandle());
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#endif
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// Make sure SDL hasn't grabbed the pointer, and force ungrab it
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XUngrabPointer(xDisplay, CurrentTime);
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SDL_SetHint(SDL_HINT_MOUSE_AUTO_CAPTURE, "0");
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// Begin dragging
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auto screen = X11::XDefaultScreen(xDisplay);
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auto rootWindow = X11::XRootWindow(xDisplay, screen);
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if (X11::XGrabPointer(xDisplay, mainWindow, 1, Button1MotionMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, rootWindow, cursorWrong, CurrentTime) != GrabSuccess)
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{
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SDL_SetHint(SDL_HINT_MOUSE_AUTO_CAPTURE, "1");
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return DragDropEffect::None;
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}
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X11::XSetSelectionOwner(xDisplay, xAtomXdndSelection, mainWindow, CurrentTime);
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// Process events
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X11::XEvent event;
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enum Status
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{
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Unaware,
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Unreceptive,
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CanDrop,
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};
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int status = Unaware, previousVersion = -1;
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X11::Window previousWindow = 0;
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DragDropEffect result = DragDropEffect::None;
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float lastDraw = Platform::GetTimeSeconds();
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float startTime = lastDraw;
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while (true)
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{
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X11::XNextEvent(xDisplay, &event);
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if (event.type == SelectionClear)
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break;
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if (event.type == SelectionRequest)
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{
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// Extract the relavent data
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X11::Window owner = event.xselectionrequest.owner;
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X11::Atom selection = event.xselectionrequest.selection;
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X11::Atom target = event.xselectionrequest.target;
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X11::Atom property = event.xselectionrequest.property;
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X11::Window requestor = event.xselectionrequest.requestor;
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X11::Time timestamp = event.xselectionrequest.time;
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X11::Display* disp = event.xselection.display;
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X11::XEvent s;
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s.xselection.type = SelectionNotify;
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s.xselection.requestor = requestor;
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s.xselection.selection = selection;
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s.xselection.target = target;
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s.xselection.property = 0;
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s.xselection.time = timestamp;
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if (target == xAtomTargets)
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{
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Array<X11::Atom> targets;
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targets.Add(target);
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targets.Add(X11::XInternAtom(disp, "MULTIPLE", 0));
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targets.Add(formats.Get(), formats.Count());
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X11::XChangeProperty(disp, requestor, property, xAtomAtom, 32, PropModeReplace, (unsigned char*)targets.Get(), targets.Count());
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s.xselection.property = property;
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}
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else if (formats.Contains(target))
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{
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s.xselection.property = property;
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X11::XChangeProperty(disp, requestor, property, target, 8, PropModeReplace, reinterpret_cast<const unsigned char*>(dataAnsi.Get()), dataAnsi.Length());
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}
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X11::XSendEvent(event.xselection.display, event.xselectionrequest.requestor, 1, 0, &s);
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}
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else if (event.type == MotionNotify)
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{
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// Find window under mouse
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auto window = Impl::FindAppWindow(xDisplay, rootWindow);
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int fmt, version = -1;
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X11::Atom atmp;
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unsigned long nitems, bytesLeft;
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unsigned char* data = nullptr;
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if (window == previousWindow)
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version = previousVersion;
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else if(window == 0)
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;
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else if (X11::XGetWindowProperty(xDisplay, window, xAtomXdndAware, 0, 2, 0, AnyPropertyType, &atmp, &fmt, &nitems, &bytesLeft, &data) != Success)
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continue;
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else if (data == 0)
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continue;
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else if (fmt != 32)
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continue;
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else if (nitems != 1)
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continue;
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else
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version = data[0];
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if (status == Unaware && version != -1)
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status = Unreceptive;
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else if(version == -1)
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status = Unaware;
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xDndPos = Float2((float)event.xmotion.x_root, (float)event.xmotion.y_root);
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// Update mouse grab
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if (status == Unaware)
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X11::XChangeActivePointerGrab(xDisplay, Button1MotionMask | ButtonReleaseMask, cursorWrong, CurrentTime);
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else if(status == Unreceptive)
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X11::XChangeActivePointerGrab(xDisplay, Button1MotionMask | ButtonReleaseMask, cursorTransient, CurrentTime);
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else
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X11::XChangeActivePointerGrab(xDisplay, Button1MotionMask | ButtonReleaseMask, cursorGood, CurrentTime);
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if (window != previousWindow && previousVersion != -1)
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{
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// Send drag left event
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auto ww = WindowsManager::GetByNativePtr((void*)previousWindow);
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if (ww)
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{
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ww->_dragOver = false;
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ww->OnDragLeave();
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}
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else
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{
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X11::XClientMessageEvent m;
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memset(&m, 0, sizeof(m));
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m.type = ClientMessage;
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m.display = event.xclient.display;
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m.window = previousWindow;
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m.message_type = xAtomXdndLeave;
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m.format = 32;
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m.data.l[0] = mainWindow;
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m.data.l[1] = 0;
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m.data.l[2] = 0;
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m.data.l[3] = 0;
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m.data.l[4] = 0;
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X11::XSendEvent(xDisplay, previousWindow, 0, NoEventMask, (X11::XEvent*)&m);
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X11::XFlush(xDisplay);
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}
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}
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if (window != previousWindow && version != -1)
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{
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// Send drag enter event
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auto ww = WindowsManager::GetByNativePtr((void*)window);
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if (ww)
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{
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xDndPos = ww->ScreenToClient(Impl::GetX11MousePosition());
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xDndResult = DragDropEffect::None;
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ww->OnDragEnter(&dropData, xDndPos, xDndResult);
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}
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else
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{
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X11::XClientMessageEvent m;
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memset(&m, 0, sizeof(m));
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m.type = ClientMessage;
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m.display = event.xclient.display;
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m.window = window;
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m.message_type = xAtomXdndEnter;
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m.format = 32;
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m.data.l[0] = mainWindow;
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m.data.l[1] = Math::Min(5, version) << 24 | (formats.Count() > 3);
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m.data.l[2] = formats.Count() > 0 ? formats[0] : 0;
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m.data.l[3] = formats.Count() > 1 ? formats[1] : 0;
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m.data.l[4] = formats.Count() > 2 ? formats[2] : 0;
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X11::XSendEvent(xDisplay, window, 0, NoEventMask, (X11::XEvent*)&m);
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X11::XFlush(xDisplay);
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}
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}
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if (version != -1)
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{
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// Send position event
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auto ww = WindowsManager::GetByNativePtr((void*)window);
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if (ww)
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{
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xDndPos = ww->ScreenToClient(Impl::GetX11MousePosition());
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ww->_dragOver = true;
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xDndResult = DragDropEffect::None;
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ww->OnDragOver(&dropData, xDndPos, xDndResult);
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status = CanDrop;
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}
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else
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{
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int x, y, tmp;
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unsigned int utmp;
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X11::Window wtmp;
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X11::XQueryPointer(xDisplay, window, &wtmp, &wtmp, &tmp, &tmp, &x, &y, &utmp);
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X11::XClientMessageEvent m;
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memset(&m, 0, sizeof(m));
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m.type = ClientMessage;
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m.display = event.xclient.display;
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m.window = window;
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m.message_type = xAtomXdndPosition;
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m.format = 32;
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m.data.l[0] = mainWindow;
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m.data.l[1] = 0;
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m.data.l[2] = (x << 16) | y;
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m.data.l[3] = CurrentTime;
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m.data.l[4] = xAtomXdndActionCopy;
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X11::XSendEvent(xDisplay, window, 0, NoEventMask, (X11::XEvent*)&m);
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X11::XFlush(xDisplay);
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}
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}
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previousWindow = window;
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previousVersion = version;
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}
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else if (event.type == ClientMessage && event.xclient.message_type == xAtomXdndStatus)
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{
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if ((event.xclient.data.l[1]&1) && status != Unaware)
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status = CanDrop;
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if (!(event.xclient.data.l[1]&1) && status != Unaware)
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status = Unreceptive;
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}
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else if (event.type == ButtonRelease && event.xbutton.button == Button1)
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{
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if (status == CanDrop)
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{
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// Send drop event
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auto ww = WindowsManager::GetByNativePtr((void*)previousWindow);
|
|
if (ww)
|
|
{
|
|
xDndPos = ww->ScreenToClient(Impl::GetX11MousePosition());
|
|
xDndResult = DragDropEffect::None;
|
|
ww->OnDragDrop(&dropData, xDndPos, xDndResult);
|
|
ww->Focus();
|
|
result = xDndResult;
|
|
}
|
|
else
|
|
{
|
|
X11::XClientMessageEvent m;
|
|
memset(&m, 0, sizeof(m));
|
|
m.type = ClientMessage;
|
|
m.display = event.xclient.display;
|
|
m.window = previousWindow;
|
|
m.message_type = xAtomXdndDrop;
|
|
m.format = 32;
|
|
m.data.l[0] = mainWindow;
|
|
m.data.l[1] = 0;
|
|
m.data.l[2] = CurrentTime;
|
|
m.data.l[3] = 0;
|
|
m.data.l[4] = 0;
|
|
X11::XSendEvent(xDisplay, previousWindow, 0, NoEventMask, (X11::XEvent*)&m);
|
|
X11::XFlush(xDisplay);
|
|
result = DragDropEffect::Copy;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
// Redraw
|
|
const float time = Platform::GetTimeSeconds();
|
|
if (time - lastDraw >= 1.0f / 20.0f)
|
|
{
|
|
lastDraw = time;
|
|
|
|
Engine::OnDraw();
|
|
}
|
|
|
|
// Prevent dead-loop
|
|
if (time - startTime >= 10.0f)
|
|
{
|
|
LOG(Warning, "DoDragDrop timed out after 10 seconds.");
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Drag end
|
|
if (previousWindow != 0 && previousVersion != -1)
|
|
{
|
|
// Send drag left event
|
|
auto ww = WindowsManager::GetByNativePtr((void*)previousWindow);
|
|
if (ww)
|
|
{
|
|
ww->_dragOver = false;
|
|
ww->OnDragLeave();
|
|
}
|
|
else
|
|
{
|
|
X11::XClientMessageEvent m;
|
|
memset(&m, 0, sizeof(m));
|
|
m.type = ClientMessage;
|
|
m.display = event.xclient.display;
|
|
m.window = previousWindow;
|
|
m.message_type = xAtomXdndLeave;
|
|
m.format = 32;
|
|
m.data.l[0] = mainWindow;
|
|
m.data.l[1] = 0;
|
|
m.data.l[2] = 0;
|
|
m.data.l[3] = 0;
|
|
m.data.l[4] = 0;
|
|
X11::XSendEvent(xDisplay, previousWindow, 0, NoEventMask, (X11::XEvent*)&m);
|
|
X11::XFlush(xDisplay);
|
|
}
|
|
}
|
|
|
|
// End grabbing
|
|
X11::XChangeActivePointerGrab(xDisplay, Button1MotionMask | ButtonReleaseMask, 0, CurrentTime);
|
|
XUngrabPointer(xDisplay, CurrentTime);
|
|
X11::XFlush(xDisplay);
|
|
|
|
SDL_SetHint(SDL_HINT_MOUSE_AUTO_CAPTURE, "1");
|
|
|
|
return result;
|
|
}
|
|
|
|
void SDLClipboard::Clear()
|
|
{
|
|
SetText(StringView::Empty);
|
|
}
|
|
|
|
void SDLClipboard::SetText(const StringView& text)
|
|
{
|
|
if (CommandLine::Options.Headless)
|
|
return;
|
|
auto mainWindow = Engine::MainWindow;
|
|
if (!mainWindow)
|
|
return;
|
|
|
|
if (xDisplay)
|
|
{
|
|
X11::Window window = (X11::Window)(mainWindow->GetX11WindowHandle());
|
|
Impl::ClipboardText.Set(text.Get(), text.Length());
|
|
X11::XSetSelectionOwner(xDisplay, xAtomClipboard, window, CurrentTime); // CLIPBOARD
|
|
//X11::XSetSelectionOwner(xDisplay, xAtomPrimary, window, CurrentTime); // XA_PRIMARY
|
|
X11::XFlush(xDisplay);
|
|
X11::XGetSelectionOwner(xDisplay, xAtomClipboard);
|
|
//X11::XGetSelectionOwner(xDisplay, xAtomPrimary);
|
|
}
|
|
else
|
|
{
|
|
LOG(Warning, "Wayland clipboard support is not implemented yet."); // TODO: Wayland
|
|
}
|
|
}
|
|
|
|
void SDLClipboard::SetRawData(const Span<byte>& data)
|
|
{
|
|
}
|
|
|
|
void SDLClipboard::SetFiles(const Array<String>& files)
|
|
{
|
|
}
|
|
|
|
String SDLClipboard::GetText()
|
|
{
|
|
if (CommandLine::Options.Headless)
|
|
return String::Empty;
|
|
String result;
|
|
auto mainWindow = Engine::MainWindow;
|
|
if (!mainWindow)
|
|
return result;
|
|
if (xDisplay)
|
|
{
|
|
X11::Window window = (X11::Window)mainWindow->GetX11WindowHandle();
|
|
|
|
Impl::ClipboardGetText(result, xAtomClipboard, xAtomUTF8String, window);
|
|
if (result.HasChars())
|
|
return result;
|
|
Impl::ClipboardGetText(result, xAtomClipboard, xAtomString, window);
|
|
if (result.HasChars())
|
|
return result;
|
|
Impl::ClipboardGetText(result, xAtomPrimary, xAtomUTF8String, window);
|
|
if (result.HasChars())
|
|
return result;
|
|
Impl::ClipboardGetText(result, xAtomPrimary, xAtomString, window);
|
|
return result;
|
|
}
|
|
else
|
|
{
|
|
LOG(Warning, "Wayland clipboard is not implemented yet."); // TODO: Wayland
|
|
return String::Empty;
|
|
}
|
|
}
|
|
|
|
Array<byte> SDLClipboard::GetRawData()
|
|
{
|
|
return Array<byte>();
|
|
}
|
|
|
|
Array<String> SDLClipboard::GetFiles()
|
|
{
|
|
return Array<String>();
|
|
}
|
|
|
|
bool SDLCALL SDLPlatform::X11EventHook(void *userdata, _XEvent *xevent)
|
|
{
|
|
const X11::XEvent& event = *(X11::XEvent*)xevent;
|
|
Window* window;
|
|
|
|
// External event handling
|
|
xEventReceived(xevent);
|
|
|
|
if (event.type == ClientMessage)
|
|
{
|
|
if ((uint32)event.xclient.message_type == (uint32)xAtomXdndEnter)
|
|
{
|
|
// Drag&drop enter
|
|
X11::Window source = event.xclient.data.l[0];
|
|
xDnDVersion = (int32)(event.xclient.data.l[1] >> 24);
|
|
const char* targetTypeFiles = "text/uri-list";
|
|
if (event.xclient.data.l[1] & 1)
|
|
{
|
|
Property p = Impl::ReadProperty(xDisplay, source, XInternAtom(xDisplay, "XdndTypeList", 0));
|
|
xDnDRequested = Impl::SelectTargetFromList(xDisplay, targetTypeFiles, (X11::Atom*)p.data, p.nitems);
|
|
X11::XFree(p.data);
|
|
}
|
|
else
|
|
{
|
|
xDnDRequested = Impl::SelectTargetFromAtoms(xDisplay, targetTypeFiles, event.xclient.data.l[2], event.xclient.data.l[3], event.xclient.data.l[4]);
|
|
}
|
|
return false;
|
|
}
|
|
else if ((uint32)event.xclient.message_type == (uint32)xAtomXdndPosition)
|
|
{
|
|
// Drag&drop move
|
|
X11::XClientMessageEvent m;
|
|
memset(&m, 0, sizeof(m));
|
|
m.type = ClientMessage;
|
|
m.display = event.xclient.display;
|
|
m.window = event.xclient.data.l[0];
|
|
m.message_type = xAtomXdndStatus;
|
|
m.format = 32;
|
|
m.data.l[0] = event.xany.window;
|
|
m.data.l[1] = (xDnDRequested != 0);
|
|
m.data.l[2] = 0;
|
|
m.data.l[3] = 0;
|
|
m.data.l[4] = xAtomXdndActionCopy;
|
|
X11::XSendEvent(xDisplay, event.xclient.data.l[0], 0, NoEventMask, (X11::XEvent*)&m);
|
|
X11::XFlush(xDisplay);
|
|
xDndPos = Float2((float)(event.xclient.data.l[2] >> 16), (float)(event.xclient.data.l[2] & 0xffff));
|
|
window = WindowsManager::GetByNativePtr((void*)event.xany.window);
|
|
if (window)
|
|
{
|
|
LinuxDropFilesData dropData;
|
|
xDndResult = DragDropEffect::None;
|
|
if (window->_dragOver)
|
|
{
|
|
window->OnDragOver(&dropData, xDndPos, xDndResult);
|
|
}
|
|
else
|
|
{
|
|
window->_dragOver = true;
|
|
window->OnDragEnter(&dropData, xDndPos, xDndResult);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
else if ((uint32)event.xclient.message_type == (uint32)xAtomXdndLeave)
|
|
{
|
|
window = WindowsManager::GetByNativePtr((void*)event.xany.window);
|
|
if (window && window->_dragOver)
|
|
{
|
|
window->_dragOver = false;
|
|
window->OnDragLeave();
|
|
}
|
|
return false;
|
|
}
|
|
else if ((uint32)event.xclient.message_type == (uint32)xAtomXdndDrop)
|
|
{
|
|
auto w = event.xany.window;
|
|
if (xDnDRequested != 0)
|
|
{
|
|
xDndSourceWindow = event.xclient.data.l[0];
|
|
if (xDnDVersion >= 1)
|
|
XConvertSelection(xDisplay, xAtomXdndSelection, xDnDRequested, xAtomPrimary, w, event.xclient.data.l[2]);
|
|
else
|
|
XConvertSelection(xDisplay, xAtomXdndSelection, xDnDRequested, xAtomPrimary, w, CurrentTime);
|
|
}
|
|
else
|
|
{
|
|
X11::XClientMessageEvent m;
|
|
memset(&m, 0, sizeof(m));
|
|
m.type = ClientMessage;
|
|
m.display = event.xclient.display;
|
|
m.window = event.xclient.data.l[0];
|
|
m.message_type = xAtomXdndFinished;
|
|
m.format = 32;
|
|
m.data.l[0] = w;
|
|
m.data.l[1] = 0;
|
|
m.data.l[2] = 0;
|
|
X11::XSendEvent(xDisplay, event.xclient.data.l[0], 0, NoEventMask, (X11::XEvent*)&m);
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
else if (event.type == SelectionNotify)
|
|
{
|
|
if (event.xselection.target == xDnDRequested)
|
|
{
|
|
// Drag&drop
|
|
window = WindowsManager::GetByNativePtr((void*)event.xany.window);
|
|
if (window)
|
|
{
|
|
Property p = Impl::ReadProperty(xDisplay, event.xany.window, xAtomPrimary);
|
|
if (xDndResult != DragDropEffect::None)
|
|
{
|
|
LinuxDropFilesData dropData;
|
|
const String filesList((const char*)p.data);
|
|
filesList.Split('\n', dropData.Files);
|
|
for (auto& e : dropData.Files)
|
|
{
|
|
e.Replace(TEXT("file://"), TEXT(""));
|
|
e.Replace(TEXT("%20"), TEXT(" "));
|
|
e = e.TrimTrailing();
|
|
}
|
|
xDndResult = DragDropEffect::None;
|
|
window->OnDragDrop(&dropData, xDndPos, xDndResult);
|
|
}
|
|
}
|
|
X11::XClientMessageEvent m;
|
|
memset(&m, 0, sizeof(m));
|
|
m.type = ClientMessage;
|
|
m.display = xDisplay;
|
|
m.window = xDndSourceWindow;
|
|
m.message_type = xAtomXdndFinished;
|
|
m.format = 32;
|
|
m.data.l[0] = event.xany.window;
|
|
m.data.l[1] = 1;
|
|
m.data.l[2] = xAtomXdndActionCopy;
|
|
XSendEvent(xDisplay, xDndSourceWindow, 0, NoEventMask, (X11::XEvent*)&m);
|
|
return false;
|
|
}
|
|
return false;
|
|
}
|
|
else if (event.type == SelectionRequest)
|
|
{
|
|
if (event.xselectionrequest.selection != xAtomClipboard)
|
|
return false;
|
|
|
|
const X11::XSelectionRequestEvent* xsr = &event.xselectionrequest;
|
|
X11::XSelectionEvent ev = { 0 };
|
|
ev.type = SelectionNotify;
|
|
ev.display = xsr->display;
|
|
ev.requestor = xsr->requestor;
|
|
ev.selection = xsr->selection;
|
|
ev.time = xsr->time;
|
|
ev.target = xsr->target;
|
|
ev.property = xsr->property;
|
|
|
|
int result = 0;
|
|
if (ev.target == xAtomTargets)
|
|
{
|
|
Array<X11::Atom, FixedAllocation<2>> types(2);
|
|
types.Add(xAtomTargets);
|
|
types.Add(xAtomUTF8String);
|
|
result = X11::XChangeProperty(xDisplay, ev.requestor, ev.property, xAtomAtom, 32, PropModeReplace, (unsigned char*)types.Get(), types.Count());
|
|
}
|
|
else if (ev.target == xAtomString || ev.target == xAtomText)
|
|
result = X11::XChangeProperty(xDisplay, ev.requestor, ev.property, xAtomString, 8, PropModeReplace, (unsigned char*)Impl::ClipboardText.Get(), Impl::ClipboardText.Length());
|
|
else if (ev.target == xAtomUTF8String)
|
|
result = X11::XChangeProperty(xDisplay, ev.requestor, ev.property, xAtomUTF8String, 8, PropModeReplace, (unsigned char*)Impl::ClipboardText.Get(), Impl::ClipboardText.Length());
|
|
else
|
|
ev.property = 0;
|
|
if ((result & 2) == 0)
|
|
X11::XSendEvent(xDisplay, ev.requestor, 0, 0, (X11::XEvent*)&ev);
|
|
return false;
|
|
}
|
|
else if (event.type == SelectionClear)
|
|
return false;
|
|
else if (event.type == XFixesSelectionNotifyEvent)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
int X11ErrorHandler(X11::Display* display, X11::XErrorEvent* event)
|
|
{
|
|
if (event->error_code == 5)
|
|
return 0; // BadAtom (invalid Atom parameter)
|
|
char buffer[256];
|
|
XGetErrorText(display, event->error_code, buffer, sizeof(buffer));
|
|
LOG(Error, "X11 Error: {0}", String(buffer));
|
|
return 0;
|
|
}
|
|
|
|
bool SDLPlatform::InitPlatform()
|
|
{
|
|
if (LinuxPlatform::Init())
|
|
return true;
|
|
|
|
if (!CommandLine::Options.Headless)
|
|
UseWayland = strcmp(SDL_GetCurrentVideoDriver(), "wayland") == 0;
|
|
|
|
return false;
|
|
}
|
|
|
|
bool SDLPlatform::InitPlatformX11(void* display)
|
|
{
|
|
if (xDisplay || UseWayland)
|
|
return false;
|
|
|
|
// The Display instance must be the same one SDL uses internally
|
|
xDisplay = (X11::Display*)display;
|
|
SDL_SetX11EventHook((SDL_X11EventHook)&X11EventHook, nullptr);
|
|
X11::XSetErrorHandler(X11ErrorHandler);
|
|
|
|
//xDisplay = X11::XOpenDisplay(nullptr);
|
|
xAtomDeleteWindow = X11::XInternAtom(xDisplay, "WM_DELETE_WINDOW", 0);
|
|
xAtomXdndEnter = X11::XInternAtom(xDisplay, "XdndEnter", 0);
|
|
xAtomXdndPosition = X11::XInternAtom(xDisplay, "XdndPosition", 0);
|
|
xAtomXdndLeave = X11::XInternAtom(xDisplay, "XdndLeave", 0);
|
|
xAtomXdndDrop = X11::XInternAtom(xDisplay, "XdndDrop", 0);
|
|
xAtomXdndActionCopy = X11::XInternAtom(xDisplay, "XdndActionCopy", 0);
|
|
xAtomXdndStatus = X11::XInternAtom(xDisplay, "XdndStatus", 0);
|
|
xAtomXdndSelection = X11::XInternAtom(xDisplay, "XdndSelection", 0);
|
|
xAtomXdndFinished = X11::XInternAtom(xDisplay, "XdndFinished", 0);
|
|
xAtomXdndAware = X11::XInternAtom(xDisplay, "XdndAware", 0);
|
|
xAtomWmStateHidden = X11::XInternAtom(xDisplay, "_NET_WM_STATE_HIDDEN", 0);
|
|
xAtomWmStateMaxHorz = X11::XInternAtom(xDisplay, "_NET_WM_STATE_MAXIMIZED_HORZ", 0);
|
|
xAtomWmStateMaxVert = X11::XInternAtom(xDisplay, "_NET_WM_STATE_MAXIMIZED_VERT", 0);
|
|
xAtomWmWindowOpacity = X11::XInternAtom(xDisplay, "_NET_WM_WINDOW_OPACITY", 0);
|
|
xAtomWmName = X11::XInternAtom(xDisplay, "_NET_WM_NAME", 0);
|
|
xAtomAtom = static_cast<X11::Atom>(4); // XA_ATOM
|
|
xAtomClipboard = X11::XInternAtom(xDisplay, "CLIPBOARD", 0);
|
|
xAtomPrimary = static_cast<X11::Atom>(1); // XA_PRIMARY
|
|
xAtomTargets = X11::XInternAtom(xDisplay, "TARGETS", 0);
|
|
xAtomText = X11::XInternAtom(xDisplay, "TEXT", 0);
|
|
xAtomString = static_cast<X11::Atom>(31); // XA_STRING
|
|
xAtomUTF8String = X11::XInternAtom(xDisplay, "UTF8_STRING", 1);
|
|
if (xAtomUTF8String == 0)
|
|
xAtomUTF8String = xAtomString;
|
|
xAtomXselData = X11::XInternAtom(xDisplay, "XSEL_DATA", 0);
|
|
|
|
// We need to override handling of the XFixes selection tracking events from SDL
|
|
auto screen = X11::XDefaultScreen(xDisplay);
|
|
auto rootWindow = X11::XRootWindow(xDisplay, screen);
|
|
int eventBase = 0, errorBase = 0;
|
|
if (X11::XFixesQueryExtension(xDisplay, &eventBase, &errorBase))
|
|
{
|
|
XFixesSelectionNotifyEvent = eventBase + XFixesSelectionNotify;
|
|
X11::XFixesSelectSelectionInput(xDisplay, rootWindow, xAtomClipboard, XFixesSetSelectionOwnerNotifyMask);
|
|
X11::XFixesSelectSelectionInput(xDisplay, rootWindow, xAtomPrimary, XFixesSetSelectionOwnerNotifyMask);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void* SDLPlatform::GetXDisplay()
|
|
{
|
|
return xDisplay;
|
|
}
|
|
|
|
void SDLPlatform::SetHighDpiAwarenessEnabled(bool enable)
|
|
{
|
|
base::SetHighDpiAwarenessEnabled(enable);
|
|
}
|
|
|
|
bool SDLPlatform::UsesWayland()
|
|
{
|
|
return UseWayland;
|
|
}
|
|
|
|
bool SDLPlatform::UsesX11()
|
|
{
|
|
return !UseWayland;
|
|
}
|
|
|
|
#endif
|