mirror of
https://github.com/debauchee/barrier.git
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267 lines
6.8 KiB
C++
267 lines
6.8 KiB
C++
#ifndef CXWINDOWSCLIPBOARD_H
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#define CXWINDOWSCLIPBOARD_H
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#include "IClipboard.h"
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#include "ClipboardTypes.h"
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#include "stdmap.h"
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#include "stdlist.h"
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#include <X11/Xlib.h>
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class CXWindowsClipboard : public IClipboard {
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public:
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CXWindowsClipboard(Display*, Window, ClipboardID);
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virtual ~CXWindowsClipboard();
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// tell clipboard it lost ownership
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void lost(Time);
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// add a selection request to the request list. if the given
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// owner window isn't this clipboard's window then this simply
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// sends a failure event to the requestor.
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void addRequest(Window owner,
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Window requestor, Atom target,
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::Time time, Atom property);
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// continue processing a selection request. returns true if the
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// request was handled, false if the request was unknown.
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bool processRequest(Window requestor,
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::Time time, Atom property);
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// terminate a selection request. returns true iff the request
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// was known and handled.
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bool destroyRequest(Window requestor);
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// get the clipboard's window
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Window getWindow() const;
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// get the clipboard selection atom
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Atom getSelection() const;
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// IClipboard overrides
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virtual bool empty();
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virtual void add(EFormat, const CString& data);
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virtual bool open(Time) const;
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virtual void close() const;
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virtual Time getTime() const;
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virtual bool has(EFormat) const;
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virtual CString get(EFormat) const;
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private:
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// convert target atom to clipboard format
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EFormat getFormat(Atom target) const;
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// add a non-MULTIPLE request. does not verify that the selection
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// was owned at the given time. returns true if the conversion
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// could be performed, false otherwise. in either case, the
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// reply is inserted.
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bool addSimpleRequest(
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Window requestor, Atom target,
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::Time time, Atom property);
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// clear the cache, resetting the cached flag and the added flag for
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// each format.
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void clearCache() const;
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void doClearCache();
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// cache all formats of the selection
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void fillCache() const;
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void doFillCache();
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// ICCCM interoperability methods
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void icccmFillCache();
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bool icccmGetSelection(Atom target,
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Atom* actualTarget,
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CString* data) const;
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Time icccmGetTime() const;
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// motif interoperability methods
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bool motifLockClipboard() const;
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void motifUnlockClipboard() const;
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bool motifOwnsClipboard() const;
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Time motifGetTime() const;
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void motifFillCache();
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// FIXME
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//
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// helper classes
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//
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// read an ICCCM conforming selection
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class CICCCMGetClipboard {
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public:
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CICCCMGetClipboard(Window requestor, Time time, Atom property);
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~CICCCMGetClipboard();
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// convert the given selection to the given type. returns
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// true iff the conversion was successful or the conversion
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// cannot be performed (in which case *actualTarget == None).
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bool readClipboard(Display* display,
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Atom selection, Atom target,
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Atom* actualTarget, CString* data);
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private:
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bool doEventPredicate(Display* display,
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XEvent* event);
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static Bool eventPredicate(Display* display,
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XEvent* event,
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XPointer arg);
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void timeout(void*);
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private:
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Window m_requestor;
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Time m_time;
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Atom m_property;
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bool m_incr;
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bool m_failed;
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bool m_done;
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// true iff we've received the selection notify
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bool m_reading;
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// the converted selection data
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CString* m_data;
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// the actual type of the data. if this is None then the
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// selection owner cannot convert to the requested type.
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Atom* m_actualTarget;
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// property used in event to wake up event loop
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Atom m_timeout;
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public:
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// true iff the selection owner didn't follow ICCCM conventions
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bool m_error;
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};
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// Motif structure IDs
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enum { kMotifClipFormat = 1, kMotifClipItem, kMotifClipHeader };
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// _MOTIF_CLIP_HEADER structure
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class CMotifClipHeader {
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public:
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SInt32 m_id; // kMotifClipHeader
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SInt32 m_pad1[3];
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SInt32 m_item;
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SInt32 m_pad2[4];
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SInt32 m_numItems;
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SInt32 m_pad3[3];
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Window m_selectionOwner;
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SInt32 m_pad4[2];
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SInt32 m_items[1]; // m_numItems items
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};
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// Motif clip item structure
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class CMotifClipItem {
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public:
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SInt32 m_id; // kMotifClipItem
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SInt32 m_pad1[6];
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SInt32 m_numFormats;
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SInt32 m_pad2[7];
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SInt32 m_formats[1]; // m_numFormats formats
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};
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// Motif clip format structure
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class CMotifClipFormat {
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public:
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SInt32 m_id; // kMotifClipFormat
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SInt32 m_pad1[6];
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SInt32 m_length;
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SInt32 m_data;
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Atom m_type;
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SInt32 m_pad2[6];
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};
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// stores data needed to respond to a selection request
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class CReply {
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public:
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CReply(Window, Atom target, ::Time);
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CReply(Window, Atom target, ::Time, Atom property,
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const CString& data, Atom type, int format);
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public:
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// information about the request
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Window m_requestor;
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Atom m_target;
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::Time m_time;
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Atom m_property;
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// true iff we've sent the notification for this reply
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bool m_replied;
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// true iff the reply has sent its last message
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bool m_done;
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// the data to send and its type and format
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CString m_data;
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Atom m_type;
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int m_format;
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// index of next byte in m_data to send
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UInt32 m_ptr;
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};
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typedef std::list<CReply*> CReplyList;
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typedef std::map<Window, CReplyList> CReplyMap;
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typedef std::map<Window, long> CReplyEventMask;
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// reply methods
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bool insertMultipleReply(Window, ::Time, Atom);
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void insertReply(CReply*);
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void pushReplies();
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void pushReplies(CReplyMap::iterator,
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CReplyList&, CReplyList::iterator);
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bool sendReply(CReply*);
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void clearReplies();
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void clearReplies(CReplyList&);
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void sendNotify(Window requestor, Atom selection,
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Atom target, Atom property, Time time);
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bool wasOwnedAtTime(::Time) const;
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// data conversion methods
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Atom getTargetsData(CString&, int* format) const;
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Atom getTimestampData(CString&, int* format) const;
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Atom getStringData(CString&, int* format) const;
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private:
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Display* m_display;
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Window m_window;
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ClipboardID m_id;
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Atom m_selection;
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mutable bool m_open;
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mutable Time m_time;
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bool m_owner;
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mutable Time m_timeOwned;
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Time m_timeLost;
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// true iff open and clipboard owned by a motif app
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mutable bool m_motif;
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// the added/cached clipboard data
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bool m_cached;
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Time m_cacheTime;
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bool m_added[kNumFormats];
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CString m_data[kNumFormats];
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// conversion request replies
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CReplyMap m_replies;
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CReplyEventMask m_eventMasks;
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// atoms we'll need
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Atom m_atomTargets;
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Atom m_atomMultiple;
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Atom m_atomTimestamp;
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Atom m_atomAtom;
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Atom m_atomAtomPair;
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Atom m_atomInteger;
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Atom m_atomData;
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Atom m_atomINCR;
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Atom m_atomString;
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Atom m_atomText;
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Atom m_atomCompoundText;
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Atom m_atomMotifClipLock;
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Atom m_atomMotifClipHeader;
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Atom m_atomMotifClipAccess;
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Atom m_atomGDKSelection;
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};
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#endif
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