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/*
* Copyright (C) 2017 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; version 3.
*
* 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/>.
*/
#include "WindowManagementPolicy.h"
#include <QDebug>
WindowManagementPolicy::WindowManagementPolicy()
: m_dummyWorkspace(std::shared_ptr<miral::Workspace>())
{
wmPolicyInterface = this;
m_activeWorkspace = m_dummyWorkspace;
}
WindowManagementPolicy *WindowManagementPolicy::instance()
{
static WindowManagementPolicy* wmPolicy(new WindowManagementPolicy);
return wmPolicy;
}
std::shared_ptr<miral::Workspace> WindowManagementPolicy::createWorkspace()
{
auto workspace = std::make_shared<miral::Workspace>();
m_workspaces.insert(workspace);
if (m_activeWorkspace.lock() == m_dummyWorkspace) {
moveWorkspaceContentToWorkspace(workspace, m_dummyWorkspace);
m_activeWorkspace = workspace;
}
return workspace;
}
void WindowManagementPolicy::releaseWorkspace(const std::shared_ptr<miral::Workspace> &workspace)
{
auto iter = m_workspaces.find(workspace);
if (iter != m_workspaces.end()) m_workspaces.erase(iter);
if (m_workspaces.size() == 0) {
m_activeWorkspace = m_dummyWorkspace;
moveWorkspaceContentToWorkspace(m_dummyWorkspace, workspace);
}
}
void WindowManagementPolicy::setActiveWorkspace(const std::shared_ptr<miral::Workspace> &workspace)
{
if (m_activeWorkspace.lock() == workspace)
return;
m_activeWorkspace = workspace ? workspace : m_dummyWorkspace;
}
void WindowManagementPolicy::addWindow(const miral::Window &window)
{
Q_EMIT windowAdded(window);
auto activeWorkspace = m_activeWorkspace.lock();
if (activeWorkspace) {
m_windows.insert(activeWorkspace, window);
Q_EMIT windowsAddedToWorkspace(activeWorkspace, {window});
}
}
void WindowManagementPolicy::removeWindow(const miral::Window &window)
{
WorkspaceWindows::iterator i = m_windows.begin();
while (i != m_windows.end()) {
if (i.value() == window) {
Q_EMIT windowsAboutToBeRemovedFromWorkspace(i.key(), { window });
i = m_windows.erase(i);
} else {
++i;
}
}
Q_EMIT windowRemoved(window);
}
void WindowManagementPolicy::forEachWindowInWorkspace(const std::shared_ptr<miral::Workspace> &workspace, const std::function<void(const miral::Window &)> &callback)
{
WorkspaceWindows::iterator i = m_windows.find(workspace);
while (i != m_windows.end() && i.key() == workspace) {
callback(i.value());
++i;
}
}
void WindowManagementPolicy::moveWindowToWorkspace(const miral::Window &window, const std::shared_ptr<miral::Workspace> &workspace)
{
auto from = m_windows.key(window);
if (from) {
auto iter = m_windows.find(from, window);
Q_EMIT windowsAboutToBeRemovedFromWorkspace(from, { window });
m_windows.erase(iter);
}
m_windows.insert(workspace, window);
Q_EMIT windowsAddedToWorkspace(workspace, { window });
}
void WindowManagementPolicy::moveWorkspaceContentToWorkspace(const std::shared_ptr<miral::Workspace> &to, const std::shared_ptr<miral::Workspace> &from)
{
std::vector<miral::Window> windows;
WorkspaceWindows::iterator i = m_windows.find(from);
while (i != m_windows.end() && i.key() == from) {
windows.push_back(i.value());
++i;
}
Q_EMIT windowsAboutToBeRemovedFromWorkspace(from, windows);
m_windows.remove(from);
Q_FOREACH(miral::Window window, windows) {
m_windows.insert(to, window);
}
Q_EMIT windowsAddedToWorkspace(to, windows);
}
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