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https://github.com/gnif/LookingGlass.git
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[client] clipboard: refactor for readabillity
This commit is contained in:
Geoffrey McRae
parent
301ba45f0f
commit
aaf449442a
@ -141,178 +141,190 @@ static void x11_cb_reply_fn(void * opaque, LG_ClipboardData type, uint8_t * data
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free(s);
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free(s);
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}
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}
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static void x11_cb_wmevent(SDL_SysWMmsg * msg)
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static void x11_cb_selection_request(const XSelectionRequestEvent e)
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{
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{
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XEvent e = msg->msg.x11.event;
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XEvent * s = (XEvent *)malloc(sizeof(XEvent));
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s->xselection.type = SelectionNotify;
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s->xselection.requestor = e.requestor;
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s->xselection.selection = e.selection;
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s->xselection.target = e.target;
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s->xselection.property = e.property;
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s->xselection.time = e.time;
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if (e.type == SelectionRequest)
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if (!this->requestFn)
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goto nodata;
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// target list requested
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if (e.target == this->aTargets)
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{
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{
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XEvent * s = (XEvent *)malloc(sizeof(XEvent));
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Atom targets[2];
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s->xselection.type = SelectionNotify;
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targets[0] = this->aTargets;
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s->xselection.requestor = e.xselectionrequest.requestor;
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targets[1] = this->aTypes[this->type];
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s->xselection.selection = e.xselectionrequest.selection;
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s->xselection.target = e.xselectionrequest.target;
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s->xselection.property = e.xselectionrequest.property;
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s->xselection.time = e.xselectionrequest.time;
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if (!this->requestFn)
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XChangeProperty(
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{
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e.display,
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s->xselection.property = None;
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e.requestor,
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XSendEvent(this->display, e.xselectionrequest.requestor, 0, 0, s);
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e.property,
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XFlush(this->display);
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XA_ATOM,
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free(s);
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32,
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return;
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PropModeReplace,
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}
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(unsigned char*)targets,
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sizeof(targets) / sizeof(Atom));
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// target list requested
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goto send;
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if (e.xselectionrequest.target == this->aTargets)
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{
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Atom targets[2];
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targets[0] = this->aTargets;
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targets[1] = this->aTypes[this->type];
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XChangeProperty(
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e.xselectionrequest.display,
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e.xselectionrequest.requestor,
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e.xselectionrequest.property,
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XA_ATOM,
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32,
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PropModeReplace,
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(unsigned char*)targets,
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sizeof(targets) / sizeof(Atom));
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XSendEvent(this->display, e.xselectionrequest.requestor, 0, 0, s);
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XFlush(this->display);
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free(s);
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return;
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}
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// look to see if we can satisfy the data type
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for(int i = 0; i < LG_CLIPBOARD_DATA_NONE; ++i)
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if (this->aTypes[i] == e.xselectionrequest.target && this->type == i)
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{
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// request the data
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this->requestFn(x11_cb_reply_fn, s);
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return;
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}
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// report no data
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s->xselection.property = None;
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XSendEvent(this->display, e.xselectionrequest.requestor, 0, 0, s);
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XFlush(this->display);
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}
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}
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if (e.type == SelectionClear && (
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// look to see if we can satisfy the data type
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e.xselectionclear.selection == XA_PRIMARY ||
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for(int i = 0; i < LG_CLIPBOARD_DATA_NONE; ++i)
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e.xselectionclear.selection == this->aSelection)
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if (this->aTypes[i] == e.target && this->type == i)
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)
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{
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// request the data
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this->requestFn(x11_cb_reply_fn, s);
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return;
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}
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nodata:
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// report no data
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s->xselection.property = None;
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send:
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XSendEvent(this->display, e.requestor, 0, 0, s);
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XFlush(this->display);
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free(s);
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}
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static void x11_cb_selection_clear(const XSelectionClearEvent e)
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{
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if (e.selection != XA_PRIMARY && e.selection != this->aSelection)
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return;
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this->aCurSelection = BadValue;
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this->releaseFn();
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return;
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}
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static void x11_cb_xfixes_selection_notify(const XFixesSelectionNotifyEvent e)
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{
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// check if the selection is valid and it isn't ourself
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if ((e.selection != XA_PRIMARY && e.selection != this->aSelection) ||
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e.owner == this->window || e.owner == 0)
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{
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{
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this->aCurSelection = BadValue;
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this->releaseFn();
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return;
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return;
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}
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}
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// if someone selected data
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// remember which selection we are working with
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if (e.type == this->eventBase + XFixesSelectionNotify)
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this->aCurSelection = e.selection;
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{
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XConvertSelection(
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XFixesSelectionNotifyEvent * sne = (XFixesSelectionNotifyEvent *)&e;
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this->display,
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e.selection,
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this->aTargets,
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this->aTargets,
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this->window,
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CurrentTime);
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// check if the selection is valid and it isn't ourself
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return;
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if (
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}
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(sne->selection != XA_PRIMARY && sne->selection != this->aSelection) ||
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sne->owner == this->window ||
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sne->owner == 0
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)
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{
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return;
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}
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// remember which selection we are working with
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static void x11_cb_selection_notify(const XSelectionEvent e)
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this->aCurSelection = sne->selection;
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{
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XConvertSelection(
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if (e.property == None)
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this->display,
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sne->selection,
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this->aTargets,
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this->aTargets,
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this->window,
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CurrentTime);
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return;
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return;
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Atom type;
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int format;
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unsigned long itemCount, after;
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unsigned char *data;
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XGetWindowProperty(
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this->display,
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this->window,
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e.property,
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0, ~0L, // start and length
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True , // delete the property
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AnyPropertyType,
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&type,
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&format,
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&itemCount,
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&after,
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&data);
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if (format == this->aIncr)
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{
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DEBUG_WARN("fixme: large paste buffers are not yet supported");
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goto out;
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}
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}
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if (e.type == SelectionNotify)
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// the target list
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if (e.property == this->aTargets)
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{
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{
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if (e.xselection.property == None)
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// the format is 32-bit and we must have data
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return;
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// this is technically incorrect however as it's
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// an array of padded 64-bit values
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if (!data || format != 32)
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goto out;
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Atom type;
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// see if we support any of the targets listed
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int format;
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const uint64_t * targets = (const uint64_t *)data;
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unsigned long itemCount, after;
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for(unsigned long i = 0; i < itemCount; ++i)
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unsigned char *data;
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XGetWindowProperty(
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this->display,
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this->window,
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e.xselection.property,
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0, ~0L, // start and length
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True , // delete the property
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AnyPropertyType,
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&type,
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&format,
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&itemCount,
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&after,
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&data);
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// the target list
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if (e.xselection.property == this->aTargets)
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{
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{
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// the format is 32-bit and we must have data
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for(int n = 0; n < LG_CLIPBOARD_DATA_NONE; ++n)
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// this is technically incorrect however as it's
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if (this->aTypes[n] == targets[i])
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// an array of padded 64-bit values
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{
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if (!data || format != 32)
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DEBUG_INFO("%s", atomTypes[n]);
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{
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// we have a match, so send the notification
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if (data)
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this->notifyFn(n);
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XFree(data);
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goto out;
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return;
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}
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}
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// see if we support any of the targets listed
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const uint64_t * targets = (const uint64_t *)data;
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for(unsigned long i = 0; i < itemCount; ++i)
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{
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for(int n = 0; n < LG_CLIPBOARD_DATA_NONE; ++n)
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if (this->aTypes[n] == targets[i])
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{
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// we have a match, so send the notification
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this->notifyFn(n);
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XFree(data);
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return;
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}
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}
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// no matches
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this->notifyFn(LG_CLIPBOARD_DATA_NONE);
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XFree(data);
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return;
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}
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}
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if (format == this->aIncr)
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// no matches
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{
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this->notifyFn(LG_CLIPBOARD_DATA_NONE);
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DEBUG_WARN("fixme: large paste buffers are not yet supported");
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goto out;
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XFree(data);
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}
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return;
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}
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if (e.property == this->aSelData)
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{
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for(int i = 0; i < LG_CLIPBOARD_DATA_NONE; ++i)
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for(int i = 0; i < LG_CLIPBOARD_DATA_NONE; ++i)
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if (this->aTypes[i] == type)
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if (this->aTypes[i] == type)
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{
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{
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this->dataFn(i, data, itemCount);
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this->dataFn(i, data, itemCount);
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XFree(data);
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goto out;
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return;
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}
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}
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DEBUG_WARN("clipboard data (%s) not in a supported format", XGetAtomName(this->display, type));
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DEBUG_WARN("clipboard data (%s) not in a supported format", XGetAtomName(this->display, type));
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goto out;
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}
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out:
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if (data)
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XFree(data);
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XFree(data);
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return;
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}
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static void x11_cb_wmevent(SDL_SysWMmsg * msg)
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{
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XEvent e = msg->msg.x11.event;
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switch(e.type)
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{
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case SelectionRequest:
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x11_cb_selection_request(e.xselectionrequest);
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break;
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case SelectionClear:
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x11_cb_selection_clear(e.xselectionclear);
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break;
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case SelectionNotify:
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x11_cb_selection_notify(e.xselection);
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break;
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default:
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if (e.type == this->eventBase + XFixesSelectionNotify)
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{
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XFixesSelectionNotifyEvent * sne = (XFixesSelectionNotifyEvent *)&e;
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x11_cb_xfixes_selection_notify(*sne);
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}
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break;
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}
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}
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}
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}
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