plugins/HudClient/hudclient.cpp · unity8

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unity8/plugins/HudClient/hudclient.cpp

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1/*

3 *

4 * This program is free software; you can redistribute it and/or modify

5 * it under the terms of the GNU General Public License as published by

6 * the Free Software Foundation; version 3.

7 *

8 * This program is distributed in the hope that it will be useful,

9 * but WITHOUT ANY WARRANTY; without even the implied warranty of

10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

11 * GNU General Public License for more details.

12 *

13 * You should have received a copy of the GNU General Public License

14 * along with this program. If not, see <http://www.gnu.org/licenses/>.

15 */

17#include "hudclient.h"

19#include "hudtoolbarmodel.h"

21#include <deelistmodel.h>

23#include <QDebug>

25namespace

26{

28extern "C"

29{

31void loadingCB(GObject* /*src*/, gpointer dst)

32{

33 static_cast<HudClient*>(dst)->voiceQueryLoading();

34}

36void listeningCB(GObject* /*src*/, gpointer dst)

37{

38 static_cast<HudClient*>(dst)->voiceQueryListening();

39}

41void heardSomethingCB(GObject* /*src*/, gpointer dst)

42{

43 static_cast<HudClient*>(dst)->voiceQueryHeardSomething();

44}

46void failedCB(GObject* /*src*/, const gchar * /*reason*/, gpointer dst)

47{

48 static_cast<HudClient*>(dst)->voiceQueryFailed();

49}

51void finishedCB(GObject* /*src*/, const gchar* query, gpointer dst)

52{

53 static_cast<HudClient*>(dst)->voiceQueryFinished(QString::fromUtf8(query));

54}

56void modelReadyCB(GObject* /*src*/, gpointer dst)

57{

58 static_cast<HudClient*>(dst)->modelReady(true);

59}

61void modelReallyReadyCB(GObject* /*src*/, gint /*position*/, gint /*removed*/, gint /*added*/, gpointer dst)

62{

63 static_cast<HudClient*>(dst)->modelReallyReady(true);

64}

66static void modelsChangedCB(GObject* /*src*/, gpointer dst)

67{

68 static_cast<HudClient*>(dst)->queryModelsChanged();

69}

71static void toolBarUpdatedCB(GObject* /*src*/, gpointer dst)

72{

73 static_cast<HudToolBarModel*>(dst)->updatedByBackend();

74}

76} // extern "C"

78} // namespace

80HudClient::HudClient()

81{

82 m_results = new DeeListModel();

83 m_clientQuery = hud_client_query_new("");

84 m_toolBarModel = new HudToolBarModel(m_clientQuery);

85 m_currentActionParam = nullptr;

86 m_results->setModel(hud_client_query_get_results_model(m_clientQuery));

88 g_signal_connect(G_OBJECT(m_clientQuery), "voice-query-loading", G_CALLBACK(loadingCB), this);

89 g_signal_connect(G_OBJECT(m_clientQuery), "voice-query-listening", G_CALLBACK(listeningCB), this);

90 g_signal_connect(G_OBJECT(m_clientQuery), "voice-query-heard-something", G_CALLBACK(heardSomethingCB), this);

91 g_signal_connect(G_OBJECT(m_clientQuery), "voice-query-finished", G_CALLBACK(finishedCB), this);

92 g_signal_connect(G_OBJECT(m_clientQuery), "voice-query-failed", G_CALLBACK(failedCB), this);

93 g_signal_connect(G_OBJECT(m_clientQuery), HUD_CLIENT_QUERY_SIGNAL_MODELS_CHANGED, G_CALLBACK(modelsChangedCB), this);

94 g_signal_connect(G_OBJECT(m_clientQuery), HUD_CLIENT_QUERY_SIGNAL_TOOLBAR_UPDATED, G_CALLBACK(toolBarUpdatedCB), m_toolBarModel);

95}

97// Terrible hack to get around GLib. GLib stores function pointers as gpointer, which violates the C and C++ spec

98// because data and function pointers may have different sizes. gcc rightfully emits a warning. There is no #pragma

99// in gcc to selectively turn off the warning, however. This hack gets around the problem, by using a union (ick) to

100// convert between the two types.

101

102class ToGPointer

103{

104public:

105 ToGPointer(void (*cb)())

106 {

107 u_.cb = cb;

108 }

109

110 operator gpointer()

111 {

112 return u_.p;

113 }

114

115private:

116 union

117 {

118 void (*cb)();

119 gpointer p;

120 } u_;

121};

122

123#define TO_GPOINTER(cb) (ToGPointer(reinterpret_cast<void(*)()>((cb))))

124

125HudClient::~HudClient()

126{

127 g_signal_handlers_disconnect_by_func(G_OBJECT(m_clientQuery), TO_GPOINTER(loadingCB), this);

128 g_signal_handlers_disconnect_by_func(G_OBJECT(m_clientQuery), TO_GPOINTER(listeningCB), this);

129 g_signal_handlers_disconnect_by_func(G_OBJECT(m_clientQuery), TO_GPOINTER(heardSomethingCB), this);

130 g_signal_handlers_disconnect_by_func(G_OBJECT(m_clientQuery), TO_GPOINTER(finishedCB), this);

131 g_signal_handlers_disconnect_by_func(G_OBJECT(m_clientQuery), TO_GPOINTER(toolBarUpdatedCB), m_toolBarModel);

132

133 delete m_results;

134 delete m_toolBarModel;

135

136 g_object_unref(m_clientQuery);

137}

138

139void HudClient::setQuery(const QString &new_query)

140{

141 hud_client_query_set_query(m_clientQuery, new_query.toUtf8().constData());

142}

143

144void HudClient::startVoiceQuery()

145{

146 hud_client_query_voice_query(m_clientQuery);

147}

148

149void HudClient::executeParametrizedAction(const QVariant &values)

150{

151 updateParametrizedAction(values);

152 hud_client_param_send_commit(m_currentActionParam);

153 g_object_unref(m_currentActionParam);

154 m_currentActionParam = nullptr;

155 Q_EMIT commandExecuted();

156}

157

158void HudClient::updateParametrizedAction(const QVariant &values)

159{

160 if (m_currentActionParam != nullptr) {

161 const QVariantMap map = values.value<QVariantMap>();

162 GActionGroup *ag = hud_client_param_get_actions(m_currentActionParam);

163

164 auto it = map.begin();

165 for ( ; it != map.end(); ++it) {

166 const QString action = it.key();

167 const QVariant value = it.value();

168 const GVariantType *actionType = g_action_group_get_action_parameter_type(ag, action.toUtf8().constData());

169 if (g_variant_type_equal(actionType, G_VARIANT_TYPE_DOUBLE) && value.canConvert(QVariant::Double)) {

170 g_action_group_activate_action(ag, action.toUtf8().constData(), g_variant_new_double(value.toDouble()));

171 } else {

172 qWarning() << "Unsuported action type in HudClient::executeParametrizedAction";

173 }

174 }

175 } else {

176 qWarning() << "Got to HudClient::updateParametrizedAction with no m_currentActionParam";

177 }

178}

179

180void HudClient::cancelParametrizedAction()

181{

182 if (m_currentActionParam != nullptr) {

183 hud_client_param_send_cancel(m_currentActionParam);

184 g_object_unref(m_currentActionParam);

185 m_currentActionParam = nullptr;

186 }

187}

188

189void HudClient::executeToolBarAction(HudClientQueryToolbarItems action)

190{

191 hud_client_query_execute_toolbar_item(m_clientQuery, action, /* timestamp */ 0);

192 Q_EMIT commandExecuted();

193}

194

195DeeListModel *HudClient::results() const

196{

197 return m_results;

198}

199

200QAbstractItemModel *HudClient::toolBarModel() const

201{

202 return m_toolBarModel;

203}

204

205void HudClient::executeCommand(int index)

206{

207 m_currentActionIndex = index;

208 DeeModel *model = hud_client_query_get_results_model(m_clientQuery);

209 DeeModelIter *iter = dee_model_get_iter_at_row(model, index);

210

211 GVariant *command_key = dee_model_get_value(model, iter, 0);

212 GVariant *is_parametrized = dee_model_get_value(model, iter, 7);

213 if (g_variant_get_boolean(is_parametrized)) {

214 m_currentActionParam = hud_client_query_execute_param_command(m_clientQuery, command_key, /* timestamp */ 0);

215 if (m_currentActionParam != nullptr) {

216 GMenuModel *menuModel = hud_client_param_get_model (m_currentActionParam);

217 if (menuModel == nullptr) {

218 g_signal_connect(m_currentActionParam, HUD_CLIENT_PARAM_SIGNAL_MODEL_READY, G_CALLBACK(modelReadyCB), this);

219 } else {

220 modelReady(false);

221 }

222 } else {

223 qWarning() << "HudClient::executeCommand::Could not get the HudClientParam for parametrized action with index" << index;

224 }

225 } else {

226 hud_client_query_execute_command(m_clientQuery, command_key, /* timestamp */ 0);

227 Q_EMIT commandExecuted();

228 }

229 g_variant_unref(command_key);

230 g_variant_unref(is_parametrized);

231}

232

233void HudClient::modelReady(bool needDisconnect)

234{

235 if (needDisconnect) {

236 g_signal_handlers_disconnect_by_func(m_currentActionParam, TO_GPOINTER(modelReadyCB), this);

237 }

238 GMenuModel *menuModel = hud_client_param_get_model (m_currentActionParam);

239 if (g_menu_model_get_n_items(menuModel) == 0) {

240 g_signal_connect(menuModel, "items-changed", G_CALLBACK(modelReallyReadyCB), this);

241 } else {

242 modelReallyReady(false);

243 }

244}

245

246static void addAttribute(QVariantMap &properties, GMenuModel *menuModel, int item, const char *attribute) {

247 GVariant *v = g_menu_model_get_item_attribute_value(menuModel, item, attribute, nullptr);

248

249 if (v == nullptr)

250 return;

251

252 properties.insert(attribute, DeeListModel::VariantForData(v));

253 g_variant_unref(v);

254}

255

256void HudClient::modelReallyReady(bool needDisconnect)

257{

258 GMenuModel *menuModel = hud_client_param_get_model (m_currentActionParam);

259 if (needDisconnect) {

260 g_signal_handlers_disconnect_by_func(menuModel, TO_GPOINTER(modelReallyReadyCB), this);

261 }

262

263 QVariantList items;

264 for (int i = 0; i < g_menu_model_get_n_items(menuModel); i++) {

265 GVariant *v = g_menu_model_get_item_attribute_value(menuModel, i, "parameter-type", G_VARIANT_TYPE_STRING);

266

267 if (v == nullptr)

268 continue;

269

270 const QString type = QString::fromUtf8(g_variant_get_string(v, nullptr));

271 if (type == "slider") {

272 const char *sliderAttributes[] = { "label", "min", "max", "step", "value", "live", "action" };

273 QVariantMap properties;

274 properties.insert("parameter-type", "slider");

275 for (uint j = 0; j < sizeof(sliderAttributes)/sizeof(sliderAttributes[0]); ++j) {

276 addAttribute(properties, menuModel, i, sliderAttributes[j]);

277 }

278 items << properties;

279 }

280 g_variant_unref(v);

281 }

282

283 DeeModel *model = hud_client_query_get_results_model(m_clientQuery);

284 DeeModelIter *iter = dee_model_get_iter_at_row(model, m_currentActionIndex);

285 GVariant *actionTextVariant = dee_model_get_value(model, iter, 1);

286 const QString actionText = QString::fromUtf8(g_variant_get_string(actionTextVariant, nullptr));

287 g_variant_unref(actionTextVariant);

288 Q_EMIT showParametrizedAction(actionText, QVariant::fromValue(items));

289}

290

291void HudClient::queryModelsChanged()

292{

293 m_results->setModel(hud_client_query_get_results_model(m_clientQuery));

294}