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[client] added streaming clipboard support for large transfers

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This commit is contained in:
Geoffrey McRae
2020-12-03 12:01:51 +11:00
parent d700e19a32
commit e57f084c93
5 changed files with 139 additions and 47 deletions
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136
client/clipboards/X11/src/x11.c
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@@ -38,6 +38,9 @@ struct state
LG_ClipboardDataFn dataFn;
LG_ClipboardData type;
bool incrStart;
unsigned int lowerBound;
// XFixes vars
int eventBase;
int errorBase;
@@ -77,10 +80,10 @@ static bool x11_cb_init(
this->display = wminfo->info.x11.display;
this->window = wminfo->info.x11.window;
this->aSelection = XInternAtom(this->display, "CLIPBOARD", False);
this->aTargets = XInternAtom(this->display, "TARGETS" , False);
this->aSelData = XInternAtom(this->display, "SEL_DATA" , False);
this->aIncr = XInternAtom(this->display, "INCR" , False);
this->aSelection = XInternAtom(this->display, "CLIPBOARD" , False);
this->aTargets = XInternAtom(this->display, "TARGETS" , False);
this->aSelData = XInternAtom(this->display, "SEL_DATA" , False);
this->aIncr = XInternAtom(this->display, "INCR" , False);
this->aCurSelection = BadValue;
this->releaseFn = releaseFn;
this->notifyFn = notifyFn;
@@ -225,6 +228,81 @@ static void x11_cb_xfixes_selection_notify(const XFixesSelectionNotifyEvent e)
return;
}
static void x11_cb_selection_incr(const XPropertyEvent e)
{
Atom type;
int format;
unsigned long itemCount, after;
unsigned char *data;
if (XGetWindowProperty(
e.display,
e.window,
e.atom,
0, ~0L, // start and length
True, // delete the property
this->aIncr,
&type,
&format,
&itemCount,
&after,
&data) != Success)
{
DEBUG_INFO("GetProp Failed");
this->notifyFn(LG_CLIPBOARD_DATA_NONE, 0);
goto out;
}
LG_ClipboardData dataType;
for(dataType = 0; dataType < LG_CLIPBOARD_DATA_NONE; ++dataType)
if (this->aTypes[dataType] == type)
break;
if (dataType == LG_CLIPBOARD_DATA_NONE)
{
DEBUG_WARN("clipboard data (%s) not in a supported format",
XGetAtomName(this->display, type));
this->lowerBound = 0;
this->notifyFn(LG_CLIPBOARD_DATA_NONE, 0);
goto out;
}
if (this->incrStart)
{
this->notifyFn(dataType, this->lowerBound);
this->incrStart = false;
}
XFree(data);
data = NULL;
if (XGetWindowProperty(
e.display,
e.window,
e.atom,
0, ~0L, // start and length
True, // delete the property
type,
&type,
&format,
&itemCount,
&after,
&data) != Success)
{
DEBUG_ERROR("XGetWindowProperty Failed");
this->notifyFn(LG_CLIPBOARD_DATA_NONE, 0);
goto out;
}
this->dataFn(dataType, data, itemCount);
this->lowerBound -= itemCount;
out:
if (data)
XFree(data);
}
static void x11_cb_selection_notify(const XSelectionEvent e)
{
if (e.property == None)
@@ -235,9 +313,9 @@ static void x11_cb_selection_notify(const XSelectionEvent e)
unsigned long itemCount, after;
unsigned char *data;
XGetWindowProperty(
this->display,
this->window,
if (XGetWindowProperty(
e.display,
e.requestor,
e.property,
0, ~0L, // start and length
True , // delete the property
@@ -246,12 +324,16 @@ static void x11_cb_selection_notify(const XSelectionEvent e)
&format,
&itemCount,
&after,
&data);
&data) != Success)
{
this->notifyFn(LG_CLIPBOARD_DATA_NONE, 0);
goto out;
}
if (type == this->aIncr)
{
DEBUG_WARN("fixme: large paste buffers are not yet supported");
this->notifyFn(LG_CLIPBOARD_DATA_NONE);
this->incrStart = true;
this->lowerBound = *(unsigned int *)data;
goto out;
}
@@ -272,26 +354,31 @@ static void x11_cb_selection_notify(const XSelectionEvent e)
if (this->aTypes[n] == targets[i])
{
// we have a match, so send the notification
this->notifyFn(n);
this->notifyFn(n, 0);
goto out;
}
}
// no matches
this->notifyFn(LG_CLIPBOARD_DATA_NONE);
this->notifyFn(LG_CLIPBOARD_DATA_NONE, 0);
goto out;
}
if (e.property == this->aSelData)
{
for(int i = 0; i < LG_CLIPBOARD_DATA_NONE; ++i)
if (this->aTypes[i] == type)
{
this->dataFn(i, data, itemCount);
goto out;
}
LG_ClipboardData dataType;
for(dataType = 0; dataType < LG_CLIPBOARD_DATA_NONE; ++dataType)
if (this->aTypes[dataType] == type)
break;
DEBUG_WARN("clipboard data (%s) not in a supported format", XGetAtomName(this->display, type));
if (dataType == LG_CLIPBOARD_DATA_NONE)
{
DEBUG_WARN("clipboard data (%s) not in a supported format",
XGetAtomName(this->display, type));
goto out;
}
this->dataFn(dataType, data, itemCount);
goto out;
}
@@ -318,6 +405,17 @@ static void x11_cb_wmevent(SDL_SysWMmsg * msg)
x11_cb_selection_notify(e.xselection);
break;
case PropertyNotify:
if (e.xproperty.display != this->display ||
e.xproperty.window != this->window ||
e.xproperty.atom != this->aSelData ||
e.xproperty.state != PropertyNewValue ||
this->lowerBound == 0)
break;
x11_cb_selection_incr(e.xproperty);
break;
default:
if (e.type == this->eventBase + XFixesSelectionNotify)
{