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WelcomePage: bug fix for example view

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We have to wait for all of the QtVersionManager and HelpManager to
be initialized, and some data actually being requested from the
examples model, before showing any examples.

Task-number: QTBUG-33924

Change-Id: I189710374f4af8d7d9cbe4731fa3faafd0623ffb
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>
This commit is contained in:
Thomas Hartmann
2013-10-15 13:21:17 +02:00
committed by Eike Ziller
parent 94b8695575
commit fe47725ae6
2 changed files with 80 additions and 84 deletions
Download Patch File Download Diff File Expand all files Collapse all files

133
src/plugins/qtsupport/exampleslistmodel.cpp
View File

@@ -110,11 +110,6 @@ public:
void setupQtVersions()
{
if (!QtVersionManager::isLoaded()) {
connect(QtVersionManager::instance(), SIGNAL(qtVersionsLoaded()), this, SLOT(qtVersionManagerLoaded()));
return;
}
beginResetModel();
clear();
@@ -156,13 +151,13 @@ public:
endResetModel();
}
int indexForUniqueId(int uniqueId) {
for (int i=0; i < rowCount(); i++) {
if (uniqueId == getId(i).toInt())
return i;
int indexForUniqueId(int uniqueId) {
for (int i=0; i < rowCount(); i++) {
if (uniqueId == getId(i).toInt())
return i;
}
return 0;
}
return 0;
}
public slots:
QVariant get(int i)
@@ -178,18 +173,10 @@ public slots:
QVariant variant = data(modelIndex, Qt::UserRole + 2);
return variant;
}
void qtVersionManagerLoaded()
{
disconnect(QtVersionManager::instance(), SIGNAL(qtVersionsLoaded()), this, SLOT(qtVersionManagerLoaded()));
setupQtVersions();
}
};
ExamplesListModel::ExamplesListModel(QObject *parent) :
QAbstractListModel(parent),
m_updateOnQtVersionsChanged(false),
m_initialized(false),
m_helpInitialized(false),
m_uniqueQtId(noQtVersionsId)
{
QHash<int, QByteArray> roleNames;
@@ -210,13 +197,6 @@ ExamplesListModel::ExamplesListModel(QObject *parent) :
roleNames[Platforms] = "platforms";
roleNames[IsHighlighted] = "isHighlighted";
setRoleNames(roleNames);
connect(Core::HelpManager::instance(), SIGNAL(setupFinished()),
SLOT(helpInitialized()));
connect(QtVersionManager::instance(), SIGNAL(qtVersionsChanged(QList<int>,QList<int>,QList<int>)),
this, SLOT(handleQtVersionsChanged()));
connect(ProjectExplorer::KitManager::instance(), SIGNAL(defaultkitChanged()),
SLOT(handleQtVersionsChanged()));
}
static QString fixStringForTags(const QString &string)
@@ -430,14 +410,6 @@ void ExamplesListModel::parseTutorials(QXmlStreamReader *reader, const QString &
}
}
void ExamplesListModel::handleQtVersionsChanged()
{
if (m_updateOnQtVersionsChanged) {
emit qtVersionsChanged();
updateExamples();
}
}
void ExamplesListModel::updateExamples()
{
QString examplesInstallPath;
@@ -541,7 +513,6 @@ QStringList ExamplesListModel::exampleSources(QString *examplesInstallPath, QStr
return sources;
// try to find a suitable Qt version
m_updateOnQtVersionsChanged = true; // this must be updated when the Qt versions change
// fallbacks are passed back if no example manifest is found
// and we fallback to Qt Creator's shipped manifest (e.g. only old Qt Versions found)
QString potentialExamplesFallback;
@@ -623,7 +594,6 @@ QStringList ExamplesListModel::exampleSources(QString *examplesInstallPath, QStr
int ExamplesListModel::rowCount(const QModelIndex &) const
{
ensureInitialized();
return m_exampleItems.size();
}
@@ -636,7 +606,6 @@ QString prefixForItem(const ExampleItem &item)
QVariant ExamplesListModel::data(const QModelIndex &index, int role) const
{
ensureInitialized();
if (!index.isValid() || index.row()+1 > m_exampleItems.count()) {
qDebug() << Q_FUNC_INFO << "invalid index requested";
return QVariant();
@@ -685,36 +654,16 @@ QVariant ExamplesListModel::data(const QModelIndex &index, int role) const
}
}
// TODO global tag list is unused, remove
QStringList ExamplesListModel::tags() const
{
ensureInitialized();
return m_tags;
}
void ExamplesListModel::helpInitialized()
void ExamplesListModel::setUniqueQtId(int id)
{
m_helpInitialized = true;
if (m_initialized) // if we are already initialized we need to update nevertheless
updateExamples();
}
void ExamplesListModel::ensureInitialized() const
{
if (m_initialized || !m_helpInitialized)
return;
ExamplesListModel *that = const_cast<ExamplesListModel *>(this);
that->m_initialized = true;
that->updateExamples();
emit that->qtVersionsChanged();
}
void ExamplesListModel::filterForQtById(int id)
{
if (QtVersionManager::isLoaded()) {
m_uniqueQtId = id;
setUniqueQtVersionIdSetting(id);
updateExamples();
}
m_uniqueQtId = id;
updateExamples();
}
ExamplesListModelFilter::ExamplesListModelFilter(ExamplesListModel *sourceModel, QObject *parent) :
@@ -723,12 +672,21 @@ ExamplesListModelFilter::ExamplesListModelFilter(ExamplesListModel *sourceModel,
m_sourceModel(sourceModel),
m_timerId(0),
m_qtVersionModel(new QtVersionsModel(this)),
m_blockIndexUpdate(false)
m_blockIndexUpdate(false),
m_qtVersionManagerInitialized(false),
m_helpManagerInitialized(false),
m_initalized(false),
m_exampleDataRequested(false)
{
// initialization hooks
connect(QtVersionManager::instance(), SIGNAL(qtVersionsLoaded()),
this, SLOT(qtVersionManagerLoaded()));
connect(Core::HelpManager::instance(), SIGNAL(setupFinished()),
this, SLOT(helpManagerInitialized()));
connect(this, SIGNAL(showTutorialsOnlyChanged()), SLOT(updateFilter()));
connect(sourceModel, SIGNAL(qtVersionsChanged()), SLOT(handleQtVersionsChanged()));
setSourceModel(m_sourceModel);
m_qtVersionModel->setupQtVersions();
}
void ExamplesListModelFilter::updateFilter()
@@ -796,13 +754,13 @@ bool ExamplesListModelFilter::filterAcceptsRow(int sourceRow, const QModelIndex
int ExamplesListModelFilter::rowCount(const QModelIndex &parent) const
{
m_sourceModel->ensureInitialized();
exampleDataRequested();
return QSortFilterProxyModel::rowCount(parent);
}
QVariant ExamplesListModelFilter::data(const QModelIndex &index, int role) const
{
m_sourceModel->ensureInitialized();
exampleDataRequested();
return QSortFilterProxyModel::data(index, role);
}
@@ -811,6 +769,15 @@ QAbstractItemModel* ExamplesListModelFilter::qtVersionModel()
return m_qtVersionModel;
}
void ExamplesListModelFilter::filterForQtById(int id)
{
if (m_blockIndexUpdate || !m_initalized)
return;
setUniqueQtVersionIdSetting(id);
m_sourceModel->setUniqueQtId(id);
}
void ExamplesListModelFilter::setShowTutorialsOnly(bool showTutorialsOnly)
{
m_showTutorialsOnly = showTutorialsOnly;
@@ -821,10 +788,44 @@ void ExamplesListModelFilter::handleQtVersionsChanged()
{
m_blockIndexUpdate = true;
m_qtVersionModel->setupQtVersions();
m_sourceModel->updateExamples();
emit qtVersionIndexChanged();
m_blockIndexUpdate = false;
}
void ExamplesListModelFilter::qtVersionManagerLoaded()
{
m_qtVersionManagerInitialized = true;
tryToInitialize();
}
void ExamplesListModelFilter::helpManagerInitialized()
{
m_helpManagerInitialized = true;
tryToInitialize();
}
void ExamplesListModelFilter::exampleDataRequested() const
{
ExamplesListModelFilter *that = const_cast<ExamplesListModelFilter *>(this);
that->m_exampleDataRequested = true;
that->tryToInitialize();
}
void ExamplesListModelFilter::tryToInitialize()
{
if (!m_initalized
&& m_qtVersionManagerInitialized && m_helpManagerInitialized && m_exampleDataRequested) {
m_initalized = true;
connect(QtVersionManager::instance(), SIGNAL(qtVersionsChanged(QList<int>,QList<int>,QList<int>)),
this, SLOT(handleQtVersionsChanged()));
connect(ProjectExplorer::KitManager::instance(), SIGNAL(defaultkitChanged()),
this, SLOT(handleQtVersionsChanged()));
handleQtVersionsChanged();
m_sourceModel->updateExamples();
}
}
void ExamplesListModelFilter::delayedUpdateFilter()
{
if (m_timerId != 0)

31
src/plugins/qtsupport/exampleslistmodel.h
View File

@@ -85,21 +85,15 @@ public:
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
QStringList tags() const;
void ensureInitialized() const;
void beginReset() { beginResetModel(); }
void endReset() { endResetModel(); }
void filterForQtById(int id);
void setUniqueQtId(int id);
void updateExamples();
signals:
void tagsUpdated();
void qtVersionsChanged();
public slots:
void handleQtVersionsChanged();
void updateExamples();
void helpInitialized();
private:
void parseExamples(QXmlStreamReader *reader, const QString &projectsOffset,
@@ -113,9 +107,6 @@ private:
QList<ExampleItem> m_exampleItems;
QStringList m_tags;
bool m_updateOnQtVersionsChanged;
bool m_initialized;
bool m_helpInitialized;
int m_uniqueQtId;
};
@@ -143,13 +134,7 @@ public:
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
QAbstractItemModel* qtVersionModel();
Q_INVOKABLE void filterForQtById(int id)
{
if (m_blockIndexUpdate)
return;
m_sourceModel->filterForQtById(id);
}
Q_INVOKABLE void filterForQtById(int id);
public slots:
void setFilterTags(const QStringList &arg)
@@ -180,7 +165,13 @@ signals:
void searchStrings(const QStringList &arg);
void qtVersionIndexChanged();
private slots:
void qtVersionManagerLoaded();
void helpManagerInitialized();
private:
void exampleDataRequested() const;
void tryToInitialize();
void timerEvent(QTimerEvent *event);
void delayedUpdateFilter();
int qtVersionIndex() const;
@@ -192,6 +183,10 @@ private:
int m_timerId;
QtVersionsModel* m_qtVersionModel;
bool m_blockIndexUpdate;
bool m_qtVersionManagerInitialized;
bool m_helpManagerInitialized;
bool m_initalized;
bool m_exampleDataRequested;
};
} // namespace Internal