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the API is more complex, but it's a lot less "modal". it preserves state nicely and obeys "principle of least surprise"; now we just need to decide whether or not the "enabled single runners thing" makes sense

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svn path=/trunk/KDE/kdelibs/; revision=1054446
This commit is contained in:
Aaron J. Seigo 2009-11-26 01:52:23 +00:00
parent 7eb365fac2
commit 4d9892e0a3
2 changed files with 186 additions and 89 deletions
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169
runnermanager.cpp
View File

@ -60,7 +60,11 @@ public:
deferredRun(0),
currentSingleRunner(0),
prepped(false),
teardownRequested(false)
allRunnersPrepped(false),
singleRunnerPrepped(false),
teardownRequested(false),
singleMode(false),
singleRunnerWasLoaded(false)
{
matchChangeTimer.setSingleShot(true);
delayTimer.setSingleShot(true);
@ -113,28 +117,43 @@ public:
return conf.isValid() ? conf : KConfigGroup(KGlobal::config(), "PlasmaRunnerManager");
}
AbstractRunner *loadSingleRunner(QString id)
void clearSingleRunner()
{
if (q->runner(id)) {
return q->runner(id);
}
if (currentSingleRunner && currentSingleRunner->id() == id) {
return currentSingleRunner;
}
if (singleRunnerWasLoaded) {
delete currentSingleRunner;
currentSingleRunner = 0;
KService::List offers = KServiceTypeTrader::self()->query("Plasma/Runner", QString("[X-KDE-PluginInfo-Name] == '%1'").arg(id));
if (offers.isEmpty()) {
return 0;
}
currentSingleRunner = 0;
}
void loadSingleRunner()
{
if (!singleMode || singleModeRunnerId.isEmpty() ||
!enabledSingleRunnerNames.contains(singleModeRunnerId)) {
clearSingleRunner();
return;
}
if (currentSingleRunner) {
if (currentSingleRunner->id() == singleModeRunnerId) {
return;
}
clearSingleRunner();
}
AbstractRunner *loadedRunner = q->runner(singleModeRunnerId);
if (loadedRunner) {
singleRunnerWasLoaded = false;
currentSingleRunner = loadedRunner;
return;
}
KService::List offers = KServiceTypeTrader::self()->query("Plasma/Runner", QString("[X-KDE-PluginInfo-Name] == '%1'").arg(singleModeRunnerId));
if (!offers.isEmpty()) {
const KService::Ptr &service = offers[0];
QString api = service->property("X-Plasma-API").toString();
QString error;
AbstractRunner *runner = 0;
if (api.isEmpty()) {
QVariantList args;
@ -149,14 +168,9 @@ public:
if (currentSingleRunner) {
QMetaObject::invokeMethod(currentSingleRunner, "init");
emit currentSingleRunner->prepare();
singleRunnerWasLoaded = true;
}
return currentSingleRunner;
}
void clearSingleRunner()
{
delete currentSingleRunner;
currentSingleRunner = 0;
}
void loadRunners()
@ -174,7 +188,7 @@ public:
pluginConf = KConfigGroup(KGlobal::config(), "Plugins");
}
singleRunnerEnabledNames.clear();
enabledSingleRunnerNames.clear();
foreach (const KService::Ptr &service, offers) {
//kDebug() << "Loading runner: " << service->name() << service->storageId();
@ -196,7 +210,7 @@ public:
const bool singleQueryModeEnabled = service->property("SingleRunnerQueryMode", QVariant::Bool).toBool();
if (singleQueryModeEnabled) {
singleRunnerEnabledNames.insert(runnerName, description.name());
enabledSingleRunnerNames.insert(runnerName, description.name());
}
//kDebug() << loadAll << description.isPluginEnabled() << noWhiteList << whiteList.contains(runnerName);
@ -290,13 +304,22 @@ public:
}
if (searchJobs.isEmpty() && oldSearchJobs.isEmpty()) {
if (allRunnersPrepped) {
foreach (AbstractRunner *runner, runners) {
emit runner->teardown();
}
allRunnersPrepped = false;
}
if (singleRunnerPrepped) {
if (currentSingleRunner) {
emit currentSingleRunner->teardown();
}
singleRunnerPrepped = false;
}
prepped = false;
teardownRequested = false;
}
@ -326,14 +349,19 @@ public:
QTimer matchChangeTimer;
QTimer delayTimer; // Timer to control when to run slow runners
QHash<QString, AbstractRunner*> runners;
QHash<QString, QString> singleRunnerEnabledNames;
QHash<QString, QString> enabledSingleRunnerNames;
AbstractRunner* currentSingleRunner;
QSet<FindMatchesJob*> searchJobs;
QSet<FindMatchesJob*> oldSearchJobs;
KConfigGroup conf;
QString singleModeRunnerId;
bool loadAll : 1;
bool prepped : 1;
bool allRunnersPrepped : 1;
bool singleRunnerPrepped : 1;
bool teardownRequested : 1;
bool singleMode : 1;
bool singleRunnerWasLoaded : 1;
};
/*****************************************************
@ -398,13 +426,44 @@ AbstractRunner* RunnerManager::runner(const QString &name) const
return d->runners.value(name, 0);
}
AbstractRunner * RunnerManager::retrieveSingleRunner(const QString &name)
AbstractRunner *RunnerManager::singleModeRunner() const
{
if (!singleRunnerEnabledIds().contains(name)) {
return 0;
return d->currentSingleRunner;
}
return d->loadSingleRunner(name);
void RunnerManager::setSingleModeRunnerId(const QString &id)
{
d->singleModeRunnerId = id;
d->loadSingleRunner();
}
QString RunnerManager::singleModeRunnerId() const
{
return d->singleModeRunnerId;
}
bool RunnerManager::singleMode() const
{
return d->singleMode;
}
void RunnerManager::setSingleMode(bool singleMode)
{
if (d->singleMode == singleMode) {
return;
}
Plasma::AbstractRunner *prevSingleRunner = d->currentSingleRunner;
d->singleMode = singleMode;
d->loadSingleRunner();
d->singleMode = d->currentSingleRunner;
if (prevSingleRunner != d->currentSingleRunner) {
if (d->prepped) {
matchSessionComplete();
setupMatchSession();
}
}
}
QList<AbstractRunner *> RunnerManager::runners() const
@ -412,9 +471,9 @@ QList<AbstractRunner *> RunnerManager::runners() const
return d->runners.values();
}
QStringList RunnerManager::singleRunnerEnabledIds() const
QStringList RunnerManager::enabledSingleModeRunnerIds() const
{
return d->singleRunnerEnabledNames.keys();
return d->enabledSingleRunnerNames.keys();
}
QString RunnerManager::runnerName(const QString &id) const
@ -422,7 +481,7 @@ QString RunnerManager::runnerName(const QString &id) const
if (runner(id)) {
return runner(id)->name();
} else {
return d->singleRunnerEnabledNames.value(id, QString());
return d->enabledSingleRunnerNames.value(id, QString());
}
}
@ -485,11 +544,17 @@ void RunnerManager::setupMatchSession()
}
d->prepped = true;
if (d->singleMode) {
if (d->currentSingleRunner) {
emit d->currentSingleRunner->prepare();
d->singleRunnerPrepped = true;
}
} else {
foreach (AbstractRunner *runner, d->runners) {
emit runner->prepare();
}
if (d->currentSingleRunner) {
emit d->currentSingleRunner->prepare();
d->allRunnersPrepped = true;
}
}
@ -513,18 +578,26 @@ void RunnerManager::launchQuery(const QString &untrimmedTerm, const QString &run
setupMatchSession();
QString term = untrimmedTerm.trimmed();
AbstractRunner *singleRunner = 0;
if (!runnerName.isEmpty() && singleRunnerEnabledIds().contains(runnerName)) {
singleRunner = d->loadSingleRunner(runnerName);
} else {
d->clearSingleRunner();
}
if (term.isEmpty() && singleRunner && singleRunner->defaultSyntax()) {
term = singleRunner->defaultSyntax()->exampleQueries().first().remove(QRegExp(":q:"));
if (!runnerName.isEmpty()) {
setSingleModeRunnerId(runnerName);
setSingleMode(true);
}
if (term.isEmpty()) {
if (d->singleMode && d->currentSingleRunner && d->currentSingleRunner->defaultSyntax()) {
term = d->currentSingleRunner->defaultSyntax()->exampleQueries().first().remove(QRegExp(":q:"));
} else {
reset();
return;
}
}
if (d->context.query() == term) {
// we already are searching for this!
return;
}
if (d->singleMode && !d->currentSingleRunner) {
reset();
return;
}
@ -533,11 +606,6 @@ void RunnerManager::launchQuery(const QString &untrimmedTerm, const QString &run
d->loadRunners();
}
if (d->context.query() == term) {
// we already are searching for this!
return;
}
reset();
// kDebug() << "runners searching for" << term << "on" << runnerName;
d->context.setQuery(term);
@ -545,8 +613,8 @@ void RunnerManager::launchQuery(const QString &untrimmedTerm, const QString &run
AbstractRunner::List runable;
//if the name is not empty we will launch only the specified runner
if (singleRunner) {
runable.append(singleRunner);
if (d->singleMode && d->currentSingleRunner) {
runable.append(d->currentSingleRunner);
d->context.setSingleRunnerQueryMode(true);
} else {
runable = d->runners.values();
@ -564,6 +632,7 @@ void RunnerManager::launchQuery(const QString &untrimmedTerm, const QString &run
d->searchJobs.insert(job);
}
}
// Start timer to unblock slow runners
d->delayTimer.start(RunnerManagerPrivate::slowRunDelay);
}

46
runnermanager.h
View File

@ -61,13 +61,40 @@ class PLASMA_EXPORT RunnerManager : public QObject
AbstractRunner *runner(const QString &name) const;
/**
* Returns the single runner enabled runner given by
* the argument or NULL if not valid; the runner will be loaded
* if necessary
* @arg name the name of the runner
* @return Pointer to the runner
* @return the currently active "single mode" runner, or null if none
* @since 4.4
*/
AbstractRunner *retrieveSingleRunner(const QString &name);
AbstractRunner *singleModeRunner() const;
/**
* Puts the manager into "single runner" mode using the given
* runner; if the runner does not exist or can not be loaded then
* the single runner mode will not be started and singleModeRunner()
* will return NULL
* @arg id the id of the runner to use
* @since 4.4
*/
void setSingleModeRunnerId(const QString &id);
/**
* @return the id of the runner to use in single mode
* @since 4.4
*/
QString singleModeRunnerId() const;
/**
* @return true if the manager is set to run in single runner mode
* @since 4.4
*/
bool singleMode() const;
/**
* Sets whether or not the manager is in single mode.
*
* @arg singleMode true if the manager should be in single mode, false otherwise
* @since 4.4
*/
void setSingleMode(bool singleMode);
/**
* Returns the translated name of a runner
@ -86,7 +113,7 @@ class PLASMA_EXPORT RunnerManager : public QObject
* @return the names of all single query mode enabled runners
* @since 4.4
*/
QStringList singleRunnerEnabledIds() const;
QStringList enabledSingleModeRunnerIds() const;
/**
* Retrieves the current context
@ -165,9 +192,10 @@ class PLASMA_EXPORT RunnerManager : public QObject
* matchesChanged signal.
*
* @arg term the term we want to find matches for
* @arg runner optional, if only one specific runner is to be used
* @arg runnerId optional, if only one specific runner is to be used;
* providing an id will put the manager into single runner mode
*/
void launchQuery(const QString &term, const QString &runnerName);
void launchQuery(const QString &term, const QString &runnerId);
/**
* Convenience version of above