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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/base/x/x11_foreign_window_manager.h"
#include <stddef.h>
#include <X11/Xlib.h>
#include "base/compiler_specific.h"
#include "base/memory/singleton.h"
namespace ui {
// static
XForeignWindowManager* XForeignWindowManager::GetInstance() {
return base::Singleton<XForeignWindowManager>::get();
}
int XForeignWindowManager::RequestEvents(XID xid, long event_mask) {
request_map_[xid].push_back(Request(next_request_id_, event_mask));
UpdateSelectedEvents(xid);
return next_request_id_++;
}
void XForeignWindowManager::CancelRequest(int request_id) {
for (std::map<XID, RequestVector>::iterator map_it = request_map_.begin();
map_it != request_map_.end(); ++map_it) {
RequestVector* vector = &map_it->second;
for (RequestVector::iterator vector_it = vector->begin();
vector_it != vector->end(); ++vector_it) {
if (vector_it->request_id == request_id) {
vector->erase(vector_it);
UpdateSelectedEvents(map_it->first);
if (vector->empty())
request_map_.erase(map_it);
return;
}
}
}
}
void XForeignWindowManager::OnWindowDestroyed(XID xid) {
request_map_.erase(xid);
}
XForeignWindowManager::XForeignWindowManager() : next_request_id_(0) {
}
XForeignWindowManager::~XForeignWindowManager() {
}
void XForeignWindowManager::UpdateSelectedEvents(XID xid) {
std::map<XID, RequestVector>::iterator it = request_map_.find(xid);
if (it == request_map_.end())
return;
long event_mask = NoEventMask;
const RequestVector& list = it->second;
for (size_t i = 0; i < list.size(); ++i)
event_mask |= list[i].event_mask;
XSelectInput(gfx::GetXDisplay(), xid, event_mask);
}
XForeignWindowManager::Request::Request(int request_id, long event_mask)
: request_id(request_id),
event_mask(event_mask) {
}
XForeignWindowManager::Request::~Request() {
}
} // namespace ui
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