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// -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-
/* Compiz unity plugin
* unity.h
*
* Copyright (c) 2010-11 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 3
* of the License, or (at your option) any later version.
*
* 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.
*
* Your own copyright notice would go above. You are free to choose whatever
* licence you want, just take note that some compiz code is GPL and you will
* not be able to re-use it if you want to use a different licence.
*/
#include <glib.h>
#include "UnityShowdesktopHandler.h"
namespace unity
{
ShowdesktopHandlerWindowInterface::~ShowdesktopHandlerWindowInterface()
{
}
/* 300 ms */
const unsigned int ShowdesktopHandler::fade_time = 300;
std::list <ShowdesktopHandlerWindowInterface *> ShowdesktopHandler::animating_windows (0);
bool ShowdesktopHandler::ShouldHide (ShowdesktopHandlerWindowInterface *wi)
{
if (wi->OverrideRedirect())
return false;
if (!wi->Managed())
return false;
if (wi->Grabbed())
return false;
if (wi->DesktopOrDock())
return false;
if (wi->SkipTaskbarOrPager())
return false;
if (wi->Hidden())
if ((wi->ShowDesktopMode() || wi->Shaded() || wi->Minimized()))
return false;
return true;
}
guint32 ShowdesktopHandler::inhibiting_xid = 0;
void
ShowdesktopHandler::InhibitLeaveShowdesktopMode (guint32 xid)
{
if (!inhibiting_xid)
inhibiting_xid = xid;
}
void
ShowdesktopHandler::AllowLeaveShowdesktopMode (guint32 xid)
{
if (inhibiting_xid == xid)
inhibiting_xid = 0;
}
guint32
ShowdesktopHandler::InhibitingXid()
{
return inhibiting_xid;
}
ShowdesktopHandler::ShowdesktopHandler (ShowdesktopHandlerWindowInterface *wi, compiz::WindowInputRemoverLockAcquireInterface *lock_acquire_interface) :
showdesktop_handler_window_interface_ (wi),
lock_acquire_interface_ (lock_acquire_interface),
remover_(),
state_ (StateVisible),
progress_ (0.0f)
{
}
ShowdesktopHandler::~ShowdesktopHandler()
{
}
void ShowdesktopHandler::FadeOut()
{
if (state_ != StateVisible && state_ != StateFadeIn)
return;
state_ = ShowdesktopHandler::StateFadeOut;
progress_ = 0.0f;
was_hidden_ = showdesktop_handler_window_interface_->Hidden();
if (!was_hidden_)
{
showdesktop_handler_window_interface_->Hide();
showdesktop_handler_window_interface_->NotifyHidden();
remover_ = lock_acquire_interface_->InputRemover();
if (std::find (animating_windows.begin(),
animating_windows.end(),
showdesktop_handler_window_interface_) == animating_windows.end())
animating_windows.push_back (showdesktop_handler_window_interface_);
}
}
void ShowdesktopHandler::FadeIn()
{
if (state_ != StateInvisible && state_ != StateFadeOut)
return;
state_ = ShowdesktopHandler::StateFadeIn;
if (!was_hidden_)
{
showdesktop_handler_window_interface_->Show();
showdesktop_handler_window_interface_->NotifyShown();
remover_.reset();
if (std::find (animating_windows.begin(),
animating_windows.end(),
showdesktop_handler_window_interface_) == animating_windows.end())
animating_windows.push_back(showdesktop_handler_window_interface_);
}
}
ShowdesktopHandlerWindowInterface::PostPaintAction ShowdesktopHandler::Animate (unsigned int ms)
{
float inc = ms / static_cast <float> (fade_time);
if (state_ == ShowdesktopHandler::StateFadeOut)
{
progress_ += inc;
if (progress_ >= 1.0f)
{
progress_ = 1.0f;
state_ = StateInvisible;
}
}
else if (state_ == StateFadeIn)
{
progress_ -= inc;
if (progress_ <= 0.0f)
{
progress_ = 0.0f;
state_ = StateVisible;
}
}
else if (state_ == StateVisible)
return ShowdesktopHandlerWindowInterface::PostPaintAction::Remove;
else if (state_ == StateInvisible)
return ShowdesktopHandlerWindowInterface::PostPaintAction::Wait;
return ShowdesktopHandlerWindowInterface::PostPaintAction::Damage;
}
void ShowdesktopHandler::PaintOpacity (unsigned short &opacity)
{
if (progress_ == 1.0f || progress_ == 0.0f)
opacity = std::numeric_limits <unsigned short>::max();
else
opacity *= (1.0f - progress_);
}
unsigned int ShowdesktopHandler::GetPaintMask()
{
return (progress_ == 1.0f) ? showdesktop_handler_window_interface_->NoCoreInstanceMask() : 0;
}
void ShowdesktopHandler::HandleShapeEvent()
{
/* Ignore sent events from the InputRemover */
if (remover_)
{
remover_->refresh();
}
}
void ShowdesktopHandler::WindowFocusChangeNotify()
{
if (showdesktop_handler_window_interface_->Minimized())
{
for (ShowdesktopHandlerWindowInterface *w : animating_windows)
w->DisableFocus();
showdesktop_handler_window_interface_->MoveFocusAway();
for (ShowdesktopHandlerWindowInterface *w : animating_windows)
w->EnableFocus();
}
}
void ShowdesktopHandler::UpdateFrameRegion (CompRegion &r)
{
r = CompRegion();
/* Ensure no other plugins can touch this frame region */
showdesktop_handler_window_interface_->OverrideFrameRegion (r);
}
}
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