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implement dragdrop for X11

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This commit is contained in:
Jinhao
2018-10-23 03:34:12 +08:00
parent 1247e5c4e4
commit f32f22f429
4 changed files with 285 additions and 11 deletions
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42
source/detail/platform_spec_posix.cpp
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@@ -1041,6 +1041,12 @@ namespace detail
msg_dispatcher_->dispatch(reinterpret_cast<Window>(modal));
}
void platform_spec::msg_dispatch(std::function<bool(const msg_packet_tag&)> msg_filter_fn)
{
msg_dispatcher_->dispatch(msg_filter_fn);
}
void* platform_spec::request_selection(native_window_type requestor, Atom type, size_t& size)
{
if(requestor)
@@ -1104,6 +1110,40 @@ namespace detail
return graph;
}
bool platform_spec::register_dragdrop(native_window_type wd, dragdrop_interface* ddrop)
{
platform_scope_guard lock;
if(0 != xdnd_.dragdrop.count(wd))
return false;
int dndver = 4;
::XChangeProperty(display_, reinterpret_cast<Window>(wd), atombase_.xdnd_aware, XA_ATOM, sizeof(int) * 8,
PropModeReplace, reinterpret_cast<unsigned char*>(&dndver), 1);
auto & ref_drop = xdnd_.dragdrop[wd];
ref_drop.dragdrop = ddrop;
ref_drop.ref_count = 1;
return true;
}
dragdrop_interface* platform_spec::remove_dragdrop(native_window_type wd)
{
platform_scope_guard lock;
auto i = xdnd_.dragdrop.find(wd);
if(i == xdnd_.dragdrop.end())
return nullptr;
auto ddrop = i->second;
if(ddrop.ref_count <= 1)
{
xdnd_.dragdrop.erase(i);
return ddrop.dragdrop;
}
--ddrop.ref_count;
return nullptr;
}
//_m_msg_filter
//@return: _m_msg_filter returns three states
// 0 = msg_dispatcher dispatches the XEvent
@@ -1163,7 +1203,7 @@ namespace detail
else if(evt.xselection.property == self.atombase_.xdnd_selection)
{
bool accepted = false;
msg.kind = msg.kind_mouse_drop;
msg.kind = msg_packet_tag::pkt_family::mouse_drop;
msg.u.mouse_drop.window = 0;
if(bytes_left > 0 && type == self.xdnd_.good_type)
{