mirror of https://github.com/vitalif/phantomjs
87 lines
2.6 KiB
C++
87 lines
2.6 KiB
C++
#include "replcompletable.h"
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// public:
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REPLCompletable::REPLCompletable(QObject *parent)
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: QObject(parent),
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mCompletionsInitialised(false)
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{ }
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REPLCompletable::~REPLCompletable()
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{ }
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bool REPLCompletable::_isCompletable()
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{
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return true;
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}
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QStringList REPLCompletable::_getCompletions(const QString &prefix)
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{
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// First time this method is invoked, initialise the completions (lazy init)
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if (!mCompletionsInitialised) {
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initCompletions();
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mCompletionsInitialised = true;
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}
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// If no prefix provided?
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if (prefix.isEmpty()) {
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// Return all the possible completions
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return REPLCompletable::getCompletionsIndex()->values(
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this->metaObject()->className());
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}
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// make a key to store the (new) completions list
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QString cacheKey = QString("%1-%2").arg(this->metaObject()->className()).arg(prefix);
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// If a list of completion withi this key is not already in the cache
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if (!getCompletionsCache()->contains(cacheKey)) {
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// Loop over the completions and pick the one that match the given prefix
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QStringList allCompletions = REPLCompletable::getCompletionsIndex()->values(
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this->metaObject()->className());
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QStringList *matchingPrefixCompletions = new QStringList();
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QStringList::iterator i;
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for (i = allCompletions.begin(); i != allCompletions.end(); ++i) {
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if (((QString) *i).startsWith(prefix)) {
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matchingPrefixCompletions->append((QString) *i);
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}
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}
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// Store the result in the cache
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getCompletionsCache()->insert(cacheKey, matchingPrefixCompletions);
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}
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return *(getCompletionsCache()->object(cacheKey));
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}
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// protected:
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void REPLCompletable::addCompletion(const char *completion)
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{
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addCompletion(QString(completion));
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}
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void REPLCompletable::addCompletion(QString completion)
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{
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// Accept a completion only if it's unique per MetaObject ClassName
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if (!REPLCompletable::getCompletionsIndex()->contains(this->metaObject()->className(), completion)) {
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REPLCompletable::getCompletionsIndex()->insert(this->metaObject()->className(), completion);
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}
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}
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// private:
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QMultiHash<const char *, QString> *REPLCompletable::getCompletionsIndex()
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{
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static QMultiHash<const char *, QString> *compIndex = NULL;
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if (!compIndex) {
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compIndex = new QMultiHash<const char *, QString>();
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}
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return compIndex;
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}
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QCache<QString, QStringList> *REPLCompletable::getCompletionsCache()
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{
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static QCache<QString, QStringList> *compCache = NULL;
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if (!compCache) {
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compCache = new QCache<QString, QStringList>();
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}
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return compCache;
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}
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