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// -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-
/*
* Copyright (C) 2010-2012 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: Neil Jagdish Patel <neil.patel@canonical.com>
* Sam Spilsbury <sam.spilsbury@canonical.com>
* Didier Roche <didier.roche@canonical.com>
* Marco Trevisan (Treviño) <mail@3v1n0.net>
*/
#include <Nux/Nux.h>
#include "PanelTitlebarGrabAreaView.h"
#include <UnityCore/Variant.h>
#include <X11/cursorfont.h>
namespace unity
{
namespace
{
const int MOUSE_DOWN_TIMEOUT = 150;
const int MOUSE_MOVEMENT_TOLERANCE = 4;
}
PanelTitlebarGrabArea::PanelTitlebarGrabArea()
: InputArea(NUX_TRACKER_LOCATION)
, grab_cursor_(None)
, grab_started_(false)
, mouse_down_button_(0)
{
EnableDoubleClick(true);
mouse_down.connect(sigc::mem_fun(this, &PanelTitlebarGrabArea::OnMouseDown));
mouse_up.connect(sigc::mem_fun(this, &PanelTitlebarGrabArea::OnMouseUp));
mouse_drag.connect(sigc::mem_fun(this, &PanelTitlebarGrabArea::OnGrabMove));
mouse_double_click.connect([&] (int x, int y, unsigned long button_flags, unsigned long)
{
if (nux::GetEventButton(button_flags) == 1)
restore_request.emit(x, y);
});
}
PanelTitlebarGrabArea::~PanelTitlebarGrabArea()
{
if (grab_cursor_)
XFreeCursor(nux::GetGraphicsDisplay()->GetX11Display(), grab_cursor_);
}
void PanelTitlebarGrabArea::SetGrabbed(bool enabled)
{
auto display = nux::GetGraphicsDisplay()->GetX11Display();
auto panel_window = static_cast<nux::BaseWindow*>(GetTopLevelViewWindow());
if (!panel_window || !display)
return;
if (enabled && !grab_cursor_)
{
grab_cursor_ = XCreateFontCursor(display, XC_fleur);
XDefineCursor(display, panel_window->GetInputWindowId(), grab_cursor_);
}
else if (!enabled && grab_cursor_)
{
XUndefineCursor(display, panel_window->GetInputWindowId());
XFreeCursor(display, grab_cursor_);
grab_cursor_ = None;
}
}
bool PanelTitlebarGrabArea::IsGrabbed()
{
return (grab_cursor_ != None);
}
void PanelTitlebarGrabArea::OnMouseDown(int x, int y, unsigned long button_flags, unsigned long)
{
mouse_down_button_ = nux::GetEventButton(button_flags);
if (mouse_down_button_ == 2)
{
lower_request.emit(x, y);
}
else if (mouse_down_button_ == 1)
{
mouse_down_point_.x = x;
mouse_down_point_.y = y;
mouse_down_timer_.reset(new glib::Timeout(MOUSE_DOWN_TIMEOUT));
mouse_down_timer_->Run([&] () {
if (!grab_started_)
{
nux::Point const& mouse = nux::GetGraphicsDisplay()->GetMouseScreenCoord();
nux::Geometry const& geo = GetAbsoluteGeometry();
grab_started.emit(mouse.x - geo.x, mouse.y - geo.y);
grab_started_ = true;
}
mouse_down_timer_.reset();
return false;
});
}
}
void PanelTitlebarGrabArea::OnMouseUp(int x, int y, unsigned long button_flags, unsigned long)
{
int button = nux::GetEventButton(button_flags);
if (button == 1)
{
if (mouse_down_timer_)
{
mouse_down_timer_.reset();
activate_request.emit(x, y);
}
if (grab_started_)
{
grab_end.emit(x, y);
grab_started_ = false;
}
}
mouse_down_button_ = 0;
mouse_down_point_.x = 0;
mouse_down_point_.y = 0;
}
void PanelTitlebarGrabArea::OnGrabMove(int x, int y, int, int, unsigned long button_flags, unsigned long)
{
if (mouse_down_button_ != 1)
return;
if (mouse_down_timer_)
{
if (abs(mouse_down_point_.x - x) <= MOUSE_MOVEMENT_TOLERANCE &&
abs(mouse_down_point_.y - y) <= MOUSE_MOVEMENT_TOLERANCE)
{
return;
}
mouse_down_timer_.reset();
}
if (!grab_started_)
{
grab_started.emit(x, y);
grab_started_ = true;
}
else
{
grab_move.emit(x, y);
}
}
std::string
PanelTitlebarGrabArea::GetName() const
{
return "GrabArea";
}
void
PanelTitlebarGrabArea::AddProperties(GVariantBuilder* builder)
{
unity::variant::BuilderWrapper(builder)
.add(GetAbsoluteGeometry())
.add("grabbed", IsGrabbed());
}
}
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