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// -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-
/*
* Copyright (C) 2011 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Andrea Azzarone <andrea.azzarone@canonical.com>
*/
#include "XdndCollectionWindowImp.h"
#include "unity-shared/UScreen.h"
#include "unity-shared/WindowManager.h"
namespace unity {
namespace {
class PrivateWindow : public nux::BaseWindow
{
public:
PrivateWindow(XdndCollectionWindowImp* parent)
: nux::BaseWindow("")
, parent_(parent)
{
// Make it invisible...
SetBackgroundColor(nux::color::Transparent);
SetOpacity(0.0f);
// ... and as big as the whole screen.
auto uscreen = UScreen::GetDefault();
SetGeometry(uscreen->GetScreenGeometry());
// We are not calling ShowWindow () as this window
// isn't really visible
PushToBack();
if (nux::GetWindowThread()->IsEmbeddedWindow())
{
// Hack to create the X Window as soon as possible.
EnableInputWindow(true, "XdndCollectionWindowImp");
EnableInputWindow(false, "XdndCollectionWindowImp");
}
SetDndEnabled(false, true);
uscreen->changed.connect(sigc::mem_fun(this, &PrivateWindow::OnScreenChanged));
WindowManager::Default().window_moved.connect(sigc::mem_fun(this, &PrivateWindow::OnWindowMoved));
}
void OnScreenChanged(int /*primary*/, std::vector<nux::Geometry> const& /*monitors*/)
{
auto uscreen = UScreen::GetDefault();
SetGeometry(uscreen->GetScreenGeometry());
}
/**
* EnableInputWindow doesn't show the window immediately.
* Since nux::EnableInputWindow uses XMoveResizeWindow the best way to know if
* the X Window is really on/off screen is receiving WindowManager::window_moved
* signal. Please don't hate me!
**/
void OnWindowMoved(Window window_id)
{
if (G_LIKELY(window_id != GetInputWindowId()))
return;
// Create a fake mouse move because sometimes an extra one is required.
auto display = nux::GetGraphicsDisplay()->GetX11Display();
XWarpPointer(display, None, None, 0, 0, 0, 0, 0, 0);
XFlush(display);
}
void ProcessDndMove(int x, int y, std::list<char*> mimes)
{
// Hide the window as soon as possible.
PushToBack();
EnableInputWindow(false, "XdndCollectionWindowImp");
std::vector<std::string> data;
for (auto mime : mimes)
if (mime) data.push_back(mime);
parent_->collected.emit(data);
}
XdndCollectionWindowImp* parent_;
};
}
XdndCollectionWindowImp::XdndCollectionWindowImp()
: window_(new PrivateWindow(this))
{}
void XdndCollectionWindowImp::Collect()
{
// Using PushToFront we're sure that the window is shown over the panel window,
// the launcher window and the dash window. Don't forget to call PushToBack as
// soon as possible.
window_->ShowWindow(true);
window_->PushToFront();
if (nux::GetWindowThread()->IsEmbeddedWindow())
window_->EnableInputWindow(true, "XdndCollectionWindowImp");
}
void XdndCollectionWindowImp::Deactivate()
{
window_->ShowWindow(false);
window_->PushToBack();
if (nux::GetWindowThread()->IsEmbeddedWindow())
window_->EnableInputWindow(false, "XdndCollectionWindowImp");
}
std::string XdndCollectionWindowImp::GetData(std::string const& type)
{
auto& gp_display = nux::GetWindowThread()->GetGraphicsDisplay();
return glib::String(gp_display.GetDndData(const_cast<char*>(type.c_str()))).Str();
}
}
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