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****************************************************************************/
#include "qwmpplaylist.h"
#include "qwmpevents.h"
#include "qwmpmetadata.h"
#include "qwmpglobal.h"
#include <QtCore/qstringlist.h>
#include <QtCore/qurl.h>
#include <QtCore/qvariant.h>
QWmpPlaylist::QWmpPlaylist(IWMPCore3 *player, QWmpEvents *events, QObject *parent)
: QMediaPlaylistProvider(parent)
, m_player(player)
, m_playlist(0)
, m_count(0)
{
if (m_player && m_player->get_currentPlaylist(&m_playlist) == S_OK)
m_playlist->get_count(&m_count);
connect(events, SIGNAL(CurrentPlaylistChange(WMPPlaylistChangeEventType)),
this, SLOT(currentPlaylistChangeEvent(WMPPlaylistChangeEventType)));
connect(events, SIGNAL(OpenPlaylistSwitch(IDispatch*)),
this, SLOT(openPlaylistChangeEvent(IDispatch*)));
connect(events, SIGNAL(MediaChange(IDispatch*)), this, SLOT(mediaChangeEvent(IDispatch*)));
}
QWmpPlaylist::~QWmpPlaylist()
{
if (m_playlist)
m_playlist->Release();
}
bool QWmpPlaylist::load(const QString &location, const char *format)
{
Q_UNUSED(location);
Q_UNUSED(format);
return false;
}
bool QWmpPlaylist::load(QIODevice * device, const char *format)
{
Q_UNUSED(device);
Q_UNUSED(format);
return false;
}
bool QWmpPlaylist::save(const QString &location, const char *format)
{
Q_UNUSED(location);
Q_UNUSED(format);
return false;
}
bool QWmpPlaylist::save(QIODevice * device, const char *format)
{
Q_UNUSED(device);
Q_UNUSED(format);
return false;
}
int QWmpPlaylist::mediaCount() const
{
return m_count;
}
QMediaContent QWmpPlaylist::media(int pos) const
{
QMediaContent content;
IWMPMedia *media = 0;
if (m_playlist && m_playlist->get_item(pos, &media) == S_OK) {
content = QWmpMetaData::resources(media);
media->Release();
}
return content;
}
bool QWmpPlaylist::isReadOnly() const
{
return false;
}
bool QWmpPlaylist::addMedia(const QMediaContent &content)
{
bool appended = false;
IWMPMedia *media = 0;
if (!content.isNull() && m_playlist && m_player && m_player->newMedia(
QAutoBStr(content.canonicalUrl()), &media) == S_OK) {
appended = m_playlist->appendItem(media) == S_OK;
media->Release();
}
return appended;
}
bool QWmpPlaylist::insertMedia(int pos, const QMediaContent &content)
{
bool inserted = false;
IWMPMedia *media = 0;
if (m_playlist && m_player && m_player->newMedia(
QAutoBStr(content.canonicalUrl()), &media) == S_OK) {
inserted = m_playlist->insertItem(pos, media) == S_OK;
media->Release();
}
return inserted;
}
bool QWmpPlaylist::removeMedia(int pos)
{
IWMPMedia *media = 0;
if (m_playlist->get_item(pos, &media) == S_OK) {
bool removed = m_playlist->removeItem(media) == S_OK;
media->Release();
return removed;
} else {
return false;
}
}
bool QWmpPlaylist::removeMedia(int start, int end)
{
if (!m_playlist)
return false;
for (int i = start; i <= end; ++i) {
IWMPMedia *media = 0;
if (m_playlist->get_item(start, &media) == S_OK) {
bool removed = m_playlist->removeItem(media) == S_OK;
media->Release();
if (!removed)
return false;
}
}
return true;
}
bool QWmpPlaylist::clear()
{
return m_playlist && m_playlist->clear() == S_OK;
}
QStringList QWmpPlaylist::keys(int index) const
{
QStringList keys;
IWMPMedia *media = 0;
if (m_playlist && m_playlist->get_item(index, &media) == S_OK) {
keys = QWmpMetaData::keys(media);
media->Release();
}
return keys;
}
QVariant QWmpPlaylist::value(int index, const QString &key) const
{
QVariant v;
IWMPMedia *media = 0;
if (m_playlist && m_playlist->get_item(index, &media) == S_OK) {
v = QWmpMetaData::value(media, QAutoBStr(key));
media->Release();
}
return v;
}
void QWmpPlaylist::shuffle()
{
}
void QWmpPlaylist::currentPlaylistChangeEvent(WMPPlaylistChangeEventType change)
{
Q_UNUSED(change);
long count = 0;
if (m_playlist && m_playlist->get_count(&count) == S_OK && count > 0) {
if (count > m_count) {
emit mediaAboutToBeInserted(m_count, count - 1);
m_count = count;
emit mediaInserted(count, m_count - 1);
} else if (count < m_count) {
emit mediaAboutToBeRemoved(count, m_count - 1);
m_count = count;
emit mediaRemoved(count, m_count - 1);
}
}
if (m_count > 0)
emit mediaChanged(0, m_count - 1);
}
void QWmpPlaylist::openPlaylistChangeEvent(IDispatch *dispatch)
{
if (m_playlist && m_count > 0) {
emit mediaAboutToBeRemoved(0, m_count - 1);
m_playlist->Release();
m_playlist = 0;
m_count = 0;
emit mediaRemoved(0, m_count - 1);
} else if (m_playlist) {
m_playlist->Release();
m_playlist = 0;
}
IWMPPlaylist *playlist = 0;
if (dispatch && dispatch->QueryInterface(
__uuidof(IWMPPlaylist), reinterpret_cast<void **>(&playlist))) {
long count = 0;
if (playlist->get_count(&count) == S_OK && count > 0) {
emit mediaAboutToBeInserted(0, count - 1);
m_playlist = playlist;
m_count = count;
emit mediaInserted(0, count - 1);
} else {
m_playlist = playlist;
}
}
}
void QWmpPlaylist::mediaChangeEvent(IDispatch *dispatch)
{
IWMPMedia *media = 0;
if (dispatch && dispatch->QueryInterface(
__uuidof(IWMPMedia), reinterpret_cast<void **>(&media)) == S_OK) {
VARIANT_BOOL isMember = VARIANT_FALSE;
if (media->isMemberOf(m_playlist, &isMember) == S_OK && isMember) {
int index = QWmpMetaData::value(media, QAutoBStr(L"PlaylistIndex")).toInt();
if (index >= 0)
emit mediaChanged(index, index);
}
media->Release();
}
}