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author | Martin Jones <martin.jones@nokia.com> | 2010-02-26 07:35:14 (GMT) |
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committer | Martin Jones <martin.jones@nokia.com> | 2010-02-26 07:35:14 (GMT) |
commit | 7aa4532c4ab517ce5c57d4cf2ee95f71928659b4 (patch) | |
tree | 147a3268bbd2a724fbeed01c55b8d17c7e5ba490 /src/declarative | |
parent | c77554a37cdd0f2119fca5c7fe9e74a94185e952 (diff) | |
parent | 543c4b82e6d6cc4a396b1c105d7321643b6ef4c6 (diff) | |
download | Qt-7aa4532c4ab517ce5c57d4cf2ee95f71928659b4.zip Qt-7aa4532c4ab517ce5c57d4cf2ee95f71928659b4.tar.gz Qt-7aa4532c4ab517ce5c57d4cf2ee95f71928659b4.tar.bz2 |
Merge branch 'master' of scm.dev.nokia.troll.no:qt/qt-qml
Diffstat (limited to 'src/declarative')
-rw-r--r-- | src/declarative/QmlChanges.txt | 5 | ||||
-rw-r--r-- | src/declarative/graphicsitems/qdeclarativeimage.cpp | 12 | ||||
-rw-r--r-- | src/declarative/graphicsitems/qdeclarativeimage_p.h | 1 | ||||
-rw-r--r-- | src/declarative/qml/qdeclarativelist.cpp | 113 | ||||
-rw-r--r-- | src/declarative/qml/qdeclarativeproperty.cpp | 50 | ||||
-rw-r--r-- | src/declarative/util/qdeclarativeanimation.cpp | 11 | ||||
-rw-r--r-- | src/declarative/util/qdeclarativeanimation_p_p.h | 21 | ||||
-rw-r--r-- | src/declarative/util/qdeclarativeconnection.cpp | 287 | ||||
-rw-r--r-- | src/declarative/util/qdeclarativeconnections.cpp | 245 | ||||
-rw-r--r-- | src/declarative/util/qdeclarativeconnections_p.h (renamed from src/declarative/util/qdeclarativeconnection_p.h) | 43 | ||||
-rw-r--r-- | src/declarative/util/qdeclarativeutilmodule.cpp | 5 | ||||
-rw-r--r-- | src/declarative/util/util.pri | 4 |
12 files changed, 444 insertions, 353 deletions
diff --git a/src/declarative/QmlChanges.txt b/src/declarative/QmlChanges.txt index 25e0088..34e4834 100644 --- a/src/declarative/QmlChanges.txt +++ b/src/declarative/QmlChanges.txt @@ -7,6 +7,11 @@ Flickable: renamed viewportX -> contentX Flickable: renamed viewportY -> contentY Removed Flickable.reportedVelocitySmoothing Renamed MouseRegion -> MouseArea +Connection: syntax and rename: + Connection { sender: a; signal: foo(); script: xxx } + Connection { sender: a; signal: bar(); script: yyy } + becomes: + Connections { target: a; onFoo: xxx; onBar: yyy } QmlView ------- diff --git a/src/declarative/graphicsitems/qdeclarativeimage.cpp b/src/declarative/graphicsitems/qdeclarativeimage.cpp index 338b086..99ab053 100644 --- a/src/declarative/graphicsitems/qdeclarativeimage.cpp +++ b/src/declarative/graphicsitems/qdeclarativeimage.cpp @@ -127,7 +127,7 @@ QT_BEGIN_NAMESPACE QDeclarativeImage::QDeclarativeImage(QDeclarativeItem *parent) : QDeclarativeImageBase(*(new QDeclarativeImagePrivate), parent) { - connect(this, SIGNAL(sourceChanged(QUrl)), this, SLOT(updatePaintedGeometry())); + connect(this, SIGNAL(pixmapChanged()), this, SLOT(updatePaintedGeometry())); } QDeclarativeImage::QDeclarativeImage(QDeclarativeImagePrivate &dd, QDeclarativeItem *parent) @@ -139,12 +139,6 @@ QDeclarativeImage::~QDeclarativeImage() { } -void QDeclarativeImage::setSource(const QUrl &url) -{ - QDeclarativeImageBase::setSource(url); - updatePaintedGeometry(); -} - /*! \qmlproperty QPixmap Image::pixmap @@ -268,10 +262,10 @@ void QDeclarativeImage::updatePaintedGeometry() Q_D(QDeclarativeImage); if (d->fillMode == PreserveAspectFit) { - qreal widthScale = width() / qreal(d->pix.width()); - qreal heightScale = height() / qreal(d->pix.height()); if (!d->pix.width() || !d->pix.height()) return; + qreal widthScale = width() / qreal(d->pix.width()); + qreal heightScale = height() / qreal(d->pix.height()); if (widthScale <= heightScale) { d->paintedWidth = width(); d->paintedHeight = widthScale * qreal(d->pix.height()); diff --git a/src/declarative/graphicsitems/qdeclarativeimage_p.h b/src/declarative/graphicsitems/qdeclarativeimage_p.h index 5b365e7..fb77ac9 100644 --- a/src/declarative/graphicsitems/qdeclarativeimage_p.h +++ b/src/declarative/graphicsitems/qdeclarativeimage_p.h @@ -76,7 +76,6 @@ public: qreal paintedWidth() const; qreal paintedHeight() const; - void setSource(const QUrl &url); void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *); Q_SIGNALS: diff --git a/src/declarative/qml/qdeclarativelist.cpp b/src/declarative/qml/qdeclarativelist.cpp index af720d7..9691f32 100644 --- a/src/declarative/qml/qdeclarativelist.cpp +++ b/src/declarative/qml/qdeclarativelist.cpp @@ -85,18 +85,57 @@ void QDeclarativeListReferencePrivate::release() delete this; } +/*! +\class QDeclarativeListReference +\brief The QDeclarativeListReference class allows the manipulation of QDeclarativeListProperty properties. + +QDeclarativeListReference allows programs to read from, and assign values to a QML list property in a +simple and type safe way. A QDeclarativeListReference can be created by passing an object and property +name or through a QDeclarativeProperty instance. These two are equivalant: + +\code +QDeclarativeListReference ref1(object, "children"); + +QDeclarativeProperty ref2(object, "children"); +QDeclarativeListReference ref2 = qvariant_cast<QDeclarativeListReference>(ref2.read()); +\endcode + +Not all QML list properties support all operations. A set of methods, canAppend(), canAt(), canClear() and +canCount() allow programs to query whether an operation is supported on a given property. + +QML list properties are typesafe. Only QObject's that derive from the correct base class can be assigned to +the list. The listElementType() method can be used to query the QMetaObject of the QObject type supported. +Attempting to add objects of the incorrect type to a list property will fail. + +Like with normal lists, when accessing a list element by index, it is the callers responsibility to ensure +that it does not request an out of range element using the count() method before calling at(). +*/ + +/*! +Constructs an invalid instance. +*/ QDeclarativeListReference::QDeclarativeListReference() : d(0) { } -QDeclarativeListReference::QDeclarativeListReference(QObject *o, const char *property, QDeclarativeEngine *engine) +/*! +Constructs a QDeclarativeListReference for \a object's \a property. If \a property is not a list +property, an invalid QDeclarativeListReference is created. If \a object is destroyed after +the reference is constructed, it will automatically become invalid. That is, it is safe to hold +QDeclarativeListReference instances even after \a object is deleted. + +Passing \a engine is required to access some QML created list properties. If in doubt, and an engine +is available, pass it. +*/ +QDeclarativeListReference::QDeclarativeListReference(QObject *object, const char *property, QDeclarativeEngine *engine) : d(0) { - if (!o || !property) return; + if (!object || !property) return; QDeclarativePropertyCache::Data local; - QDeclarativePropertyCache::Data *data = QDeclarativePropertyCache::property(engine, o, QLatin1String(property), local); + QDeclarativePropertyCache::Data *data = + QDeclarativePropertyCache::property(engine, object, QLatin1String(property), local); if (!data || !(data->flags & QDeclarativePropertyCache::Data::IsQList)) return; @@ -106,20 +145,22 @@ QDeclarativeListReference::QDeclarativeListReference(QObject *o, const char *pro if (listType == -1) return; d = new QDeclarativeListReferencePrivate; - d->object = o; + d->object = object; d->elementType = p?p->rawMetaObjectForType(listType):QDeclarativeMetaType::qmlType(listType)->baseMetaObject(); d->propertyType = data->propType; void *args[] = { &d->property, 0 }; - QMetaObject::metacall(o, QMetaObject::ReadProperty, data->coreIndex, args); + QMetaObject::metacall(object, QMetaObject::ReadProperty, data->coreIndex, args); } +/*! \internal */ QDeclarativeListReference::QDeclarativeListReference(const QDeclarativeListReference &o) : d(o.d) { if (d) d->addref(); } +/*! \internal */ QDeclarativeListReference &QDeclarativeListReference::operator=(const QDeclarativeListReference &o) { if (o.d) o.d->addref(); @@ -128,60 +169,108 @@ QDeclarativeListReference &QDeclarativeListReference::operator=(const QDeclarati return *this; } +/*! \internal */ QDeclarativeListReference::~QDeclarativeListReference() { if (d) d->release(); } +/*! +Returns true if the instance refers to a valid list property, otherwise false. +*/ bool QDeclarativeListReference::isValid() const { return d && d->object; } +/*! +Returns the list property's object. Returns 0 if the reference is invalid. +*/ QObject *QDeclarativeListReference::object() const { if (isValid()) return d->object; else return 0; } +/*! +Returns the QMetaObject for the elements stored in the list property. Returns 0 if the reference +is invalid. + +The QMetaObject can be used ahead of time to determine whether a given instance can be added +to a list. +*/ const QMetaObject *QDeclarativeListReference::listElementType() const { if (isValid()) return d->elementType; else return 0; } +/*! +Returns true if the list property can be appended to, otherwise false. Returns false if the +reference is invalid. + +\sa append() +*/ bool QDeclarativeListReference::canAppend() const { return (isValid() && d->property.append); } +/*! +Returns true if the list property can queried by index, otherwise false. Returns false if the +reference is invalid. + +\sa at() +*/ bool QDeclarativeListReference::canAt() const { return (isValid() && d->property.at); } +/*! +Returns true if the list property can be cleared, otherwise false. Returns false if the +reference is invalid. + +\sa clear() +*/ bool QDeclarativeListReference::canClear() const { return (isValid() && d->property.clear); } +/*! +Returns true if the list property can be queried for its element count, otherwise false. +Returns false if the reference is invalid. + +\sa count() +*/ bool QDeclarativeListReference::canCount() const { return (isValid() && d->property.count); } -bool QDeclarativeListReference::append(QObject *o) const +/*! +Appends \a object to the list. Returns true if the operation succeeded, otherwise false. + +\sa canAppend() +*/ +bool QDeclarativeListReference::append(QObject *object) const { if (!canAppend()) return false; - if (o && !QDeclarativePropertyPrivate::canConvert(o->metaObject(), d->elementType)) + if (object && !QDeclarativePropertyPrivate::canConvert(object->metaObject(), d->elementType)) return false; - d->property.append(&d->property, o); + d->property.append(&d->property, object); return true; } +/*! +Returns the list element at \a index, or 0 if the operation failed. + +\sa canAt() +*/ QObject *QDeclarativeListReference::at(int index) const { if (!canAt()) return 0; @@ -189,6 +278,11 @@ QObject *QDeclarativeListReference::at(int index) const return d->property.at(&d->property, index); } +/*! +Clears the list. Returns true if the operation succeeded, otherwise false. + +\sa canClear() +*/ bool QDeclarativeListReference::clear() const { if (!canClear()) return false; @@ -198,6 +292,9 @@ bool QDeclarativeListReference::clear() const return true; } +/*! +Returns the number of objects in the list, or 0 if the operation failed. +*/ int QDeclarativeListReference::count() const { if (!canCount()) return 0; diff --git a/src/declarative/qml/qdeclarativeproperty.cpp b/src/declarative/qml/qdeclarativeproperty.cpp index 9ed760e..e1ec2cd 100644 --- a/src/declarative/qml/qdeclarativeproperty.cpp +++ b/src/declarative/qml/qdeclarativeproperty.cpp @@ -311,10 +311,10 @@ QDeclarativeProperty::QDeclarativeProperty(const QDeclarativeProperty &other) This enum specifies a category of QML property. - \value InvalidCategory The property is invalid. - \value List The property is a QList pointer + \value InvalidCategory The property is invalid, or is a signal property. + \value List The property is a QDeclarativeListProperty list property \value Object The property is a QObject derived type pointer - \value Normal The property is none of the above. + \value Normal The property is a normal value property. */ /*! @@ -752,18 +752,39 @@ QVariant QDeclarativeProperty::read() const return QVariant(); } +/*! +Return the \a name property value of \a object. This method is equivalent to: +\code + QDeclarativeProperty p(object, name); + p.read(); +\endcode +*/ QVariant QDeclarativeProperty::read(QObject *object, const QString &name) { QDeclarativeProperty p(object, name); return p.read(); } +/*! +Return the \a name property value of \a object. This method is equivalent to: +\code + QDeclarativeProperty p(object, name, context); + p.read(); +\endcode +*/ QVariant QDeclarativeProperty::read(QObject *object, const QString &name, QDeclarativeContext *ctxt) { QDeclarativeProperty p(object, name, ctxt); return p.read(); } +/*! +Return the \a name property value of \a object. This method is equivalent to: +\code + QDeclarativeProperty p(object, name, engine); + p.read(); +\endcode +*/ QVariant QDeclarativeProperty::read(QObject *object, const QString &name, QDeclarativeEngine *engine) { QDeclarativeProperty p(object, name, engine); @@ -802,9 +823,7 @@ QVariant QDeclarativePropertyPrivate::readValueProperty() } } -//### //writeEnumProperty MIRRORS the relelvant bit of QMetaProperty::write AND MUST BE KEPT IN SYNC! -//### bool QDeclarativePropertyPrivate::writeEnumProperty(const QMetaProperty &prop, int idx, QObject *object, const QVariant &value, int flags) { if (!object || !prop.isWritable()) @@ -1054,12 +1073,26 @@ bool QDeclarativeProperty::write(const QVariant &value) const return QDeclarativePropertyPrivate::write(*this, value, 0); } +/*! +Writes \a value to the \a name property of \a object. This method is equivalent to: +\code + QDeclarativeProperty p(object, name); + p.write(value); +\endcode +*/ bool QDeclarativeProperty::write(QObject *object, const QString &name, const QVariant &value) { QDeclarativeProperty p(object, name); return p.write(value); } +/*! +Writes \a value to the \a name property of \a object. This method is equivalent to: +\code + QDeclarativeProperty p(object, name, ctxt); + p.write(value); +\endcode +*/ bool QDeclarativeProperty::write(QObject *object, const QString &name, const QVariant &value, QDeclarativeContext *ctxt) { @@ -1067,6 +1100,13 @@ bool QDeclarativeProperty::write(QObject *object, const QString &name, const QVa return p.write(value); } +/*! +Writes \a value to the \a name property of \a object. This method is equivalent to: +\code + QDeclarativeProperty p(object, name, engine); + p.write(value); +\endcode +*/ bool QDeclarativeProperty::write(QObject *object, const QString &name, const QVariant &value, QDeclarativeEngine *engine) { diff --git a/src/declarative/util/qdeclarativeanimation.cpp b/src/declarative/util/qdeclarativeanimation.cpp index 328f0e4..181ef0a 100644 --- a/src/declarative/util/qdeclarativeanimation.cpp +++ b/src/declarative/util/qdeclarativeanimation.cpp @@ -1572,8 +1572,7 @@ QDeclarativeSequentialAnimation::QDeclarativeSequentialAnimation(QObject *parent QDeclarativeAnimationGroup(parent) { Q_D(QDeclarativeAnimationGroup); - d->ag = new QSequentialAnimationGroup; - QDeclarativeGraphics_setParent_noEvent(d->ag, this); + d->ag = new QSequentialAnimationGroup(this); } QDeclarativeSequentialAnimation::~QDeclarativeSequentialAnimation() @@ -1638,8 +1637,7 @@ QDeclarativeParallelAnimation::QDeclarativeParallelAnimation(QObject *parent) : QDeclarativeAnimationGroup(parent) { Q_D(QDeclarativeAnimationGroup); - d->ag = new QParallelAnimationGroup; - QDeclarativeGraphics_setParent_noEvent(d->ag, this); + d->ag = new QParallelAnimationGroup(this); } QDeclarativeParallelAnimation::~QDeclarativeParallelAnimation() @@ -1798,7 +1796,7 @@ QDeclarativePropertyAnimation::~QDeclarativePropertyAnimation() void QDeclarativePropertyAnimationPrivate::init() { Q_Q(QDeclarativePropertyAnimation); - va = new QDeclarativeBulkValueAnimator; + va = new QDeclarativeTimeLineValueAnimator; QDeclarativeGraphics_setParent_noEvent(va, q); } @@ -2214,7 +2212,7 @@ QAbstractAnimation *QDeclarativePropertyAnimation::qtAnimation() return d->va; } -struct PropertyUpdater : public QDeclarativeBulkValueUpdater +struct PropertyUpdater : public QDeclarativeTimeLineValue { QDeclarativeStateActions actions; int interpolatorType; //for Number/ColorAnimation @@ -2232,6 +2230,7 @@ struct PropertyUpdater : public QDeclarativeBulkValueUpdater wasDeleted = &deleted; if (reverse) //QVariantAnimation sends us 1->0 when reversed, but we are expecting 0->1 v = 1 - v; + QDeclarativeTimeLineValue::setValue(v); for (int ii = 0; ii < actions.count(); ++ii) { QDeclarativeAction &action = actions[ii]; diff --git a/src/declarative/util/qdeclarativeanimation_p_p.h b/src/declarative/util/qdeclarativeanimation_p_p.h index ae82a90..e582066 100644 --- a/src/declarative/util/qdeclarativeanimation_p_p.h +++ b/src/declarative/util/qdeclarativeanimation_p_p.h @@ -149,21 +149,14 @@ private: bool running; }; -class QDeclarativeBulkValueUpdater -{ -public: - virtual ~QDeclarativeBulkValueUpdater() {} - virtual void setValue(qreal value) = 0; -}; - -//animates QDeclarativeBulkValueUpdater (assumes start and end values will be reals or compatible) -class QDeclarativeBulkValueAnimator : public QVariantAnimation +//animates QDeclarativeTimeLineValue (assumes start and end values will be reals or compatible) +class QDeclarativeTimeLineValueAnimator : public QVariantAnimation { Q_OBJECT public: - QDeclarativeBulkValueAnimator(QObject *parent = 0) : QVariantAnimation(parent), animValue(0), fromSourced(0), policy(KeepWhenStopped) {} - ~QDeclarativeBulkValueAnimator() { if (policy == DeleteWhenStopped) { delete animValue; animValue = 0; } } - void setAnimValue(QDeclarativeBulkValueUpdater *value, DeletionPolicy p) + QDeclarativeTimeLineValueAnimator(QObject *parent = 0) : QVariantAnimation(parent), animValue(0), fromSourced(0), policy(KeepWhenStopped) {} + ~QDeclarativeTimeLineValueAnimator() { if (policy == DeleteWhenStopped) { delete animValue; animValue = 0; } } + void setAnimValue(QDeclarativeTimeLineValue *value, DeletionPolicy p) { if (state() == Running) stop(); @@ -200,7 +193,7 @@ protected: } private: - QDeclarativeBulkValueUpdater *animValue; + QDeclarativeTimeLineValue *animValue; bool *fromSourced; DeletionPolicy policy; }; @@ -359,7 +352,7 @@ public: int interpolatorType; QVariantAnimation::Interpolator interpolator; - QDeclarativeBulkValueAnimator *va; + QDeclarativeTimeLineValueAnimator *va; static QVariant interpolateVariant(const QVariant &from, const QVariant &to, qreal progress); static void convertVariant(QVariant &variant, int type); diff --git a/src/declarative/util/qdeclarativeconnection.cpp b/src/declarative/util/qdeclarativeconnection.cpp deleted file mode 100644 index e9ae74b..0000000 --- a/src/declarative/util/qdeclarativeconnection.cpp +++ /dev/null @@ -1,287 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtDeclarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qdeclarativeconnection_p.h" - -#include <qdeclarativeexpression.h> -#include <qdeclarativeboundsignal_p.h> -#include <qdeclarativecontext.h> - -#include <QtCore/qdebug.h> -#include <QtCore/qstringlist.h> - -#include <private/qobject_p.h> - -QT_BEGIN_NAMESPACE - -class QDeclarativeConnectionPrivate : public QObjectPrivate -{ -public: - QDeclarativeConnectionPrivate() : boundsignal(0), signalSender(0), scriptset(false), componentcomplete(false) {} - - QDeclarativeBoundSignal *boundsignal; - QObject *signalSender; - QDeclarativeScriptString script; - bool scriptset; - QString signal; - bool componentcomplete; -}; - -/*! - \qmlclass Connection QDeclarativeConnection - \since 4.7 - \brief A Connection object describes generalized connections to signals. - - When connecting to signals in QML, the usual way is to create an - "on<Signal>" handler that reacts when a signal is received, like this: - - \qml - MouseArea { - onClicked: { foo(x+123,y+456) } - } - \endqml - - However, in some cases, it is not possible to connect to a signal in this - way. For example, JavaScript-in-HTML style signal properties do not allow: - - \list - \i connecting to signals with the same name but different parameters - \i conformance checking that parameters are correctly named - \i multiple connections to the same signal - \i connections outside the scope of the signal sender - \i signals in classes with coincidentally-named on<Signal> properties - \endlist - - When any of these are needed, the Connection object can be used instead. - - For example, the above code can be changed to use a Connection object, - like this: - - \qml - MouseArea { - Connection { - signal: "clicked(x,y)" - script: { foo(x+123,y+456) } - } - } - \endqml - - More generally, the Connection object can be a child of some other object than - the sender of the signal: - - \qml - MouseArea { - id: mr - } - ... - Connection { - sender: mr - signal: "clicked(x,y)" - script: { foo(x+123,y+456) } - } - \endqml -*/ - -/*! - \internal - \class QDeclarativeConnection - \brief The QDeclarativeConnection class describes generalized connections to signals. - -*/ -QDeclarativeConnection::QDeclarativeConnection(QObject *parent) : - QObject(*(new QDeclarativeConnectionPrivate), parent) -{ -} - -QDeclarativeConnection::~QDeclarativeConnection() -{ - Q_D(QDeclarativeConnection); - delete d->boundsignal; -} - -/*! - \qmlproperty Object Connection::sender - This property holds the object that sends the signal. - - By default, the sender is assumed to be the parent of the Connection. -*/ -QObject *QDeclarativeConnection::signalSender() const -{ - Q_D(const QDeclarativeConnection); - return d->signalSender ? d->signalSender : parent(); -} - -void QDeclarativeConnection::setSignalSender(QObject *obj) -{ - Q_D(QDeclarativeConnection); - if (d->signalSender == obj) - return; - disconnectIfValid(); - d->signalSender = obj; - connectIfValid(); -} - -void QDeclarativeConnection::connectIfValid() -{ - Q_D(QDeclarativeConnection); - if (!d->componentcomplete) - return; - // boundsignal must not exist - if ((d->signalSender || parent()) && !d->signal.isEmpty() && d->scriptset) { - // create - // XXX scope? - int sigIdx = -1; - int lparen = d->signal.indexOf(QLatin1Char('(')); - QList<QByteArray> sigparams; - if (lparen >= 0 && d->signal.length() > lparen+2) { - QStringList l = d->signal.mid(lparen+1,d->signal.length()-lparen-2).split(QLatin1Char(',')); - foreach (const QString &s, l) { - sigparams.append(s.trimmed().toUtf8()); - } - } - QString signalname = d->signal.left(lparen); - QObject *sender = d->signalSender ? d->signalSender : parent(); - const QMetaObject *mo = sender->metaObject(); - int methods = mo->methodCount(); - for (int ii = 0; ii < methods; ++ii) { - QMetaMethod method = mo->method(ii); - QString methodName = QString::fromUtf8(method.signature()); - int idx = methodName.indexOf(QLatin1Char('(')); - methodName = methodName.left(idx); - if (methodName == signalname && (lparen<0 || method.parameterNames() == sigparams)) { - sigIdx = ii; - break; - } - } - if (sigIdx < 0) { - // Cannot usefully warn, since could be in middle of - // changing sender and signal. - // XXX need state change transactions to do better - return; - } - - d->boundsignal = new QDeclarativeBoundSignal(qmlContext(this), d->script.script(), sender, mo->method(sigIdx), this); - } -} - -void QDeclarativeConnection::disconnectIfValid() -{ - Q_D(QDeclarativeConnection); - if (!d->componentcomplete) - return; - if ((d->signalSender || parent()) && !d->signal.isEmpty() && d->scriptset) { - // boundsignal must exist - // destroy - delete d->boundsignal; - d->boundsignal = 0; - } -} - -void QDeclarativeConnection::componentComplete() -{ - Q_D(QDeclarativeConnection); - d->componentcomplete=true; - connectIfValid(); -} - - -/*! - \qmlproperty script Connection::script - This property holds the JavaScript executed whenever the signal is sent. -*/ -QDeclarativeScriptString QDeclarativeConnection::script() const -{ - Q_D(const QDeclarativeConnection); - return d->script; -} - -void QDeclarativeConnection::setScript(const QDeclarativeScriptString& script) -{ - Q_D(QDeclarativeConnection); - if ((d->signalSender || parent()) && !d->signal.isEmpty()) { - if (!d->scriptset) { - // mustn't exist - create - d->scriptset = true; - d->script = script; - connectIfValid(); - } else { - // must exist - update - d->script = script; - d->boundsignal->expression()->setExpression(script.script()); - } - } else { - d->scriptset = true; - d->script = script; - } -} - -/*! - \qmlproperty string Connection::signal - This property holds the signal from the sender to which the script is attached. - - The signal's formal parameter names must be given in parentheses: - - \qml -Connection { - signal: "clicked(x,y)" - script: { ... } -} - \endqml -*/ -QString QDeclarativeConnection::signal() const -{ - Q_D(const QDeclarativeConnection); - return d->signal; -} - -void QDeclarativeConnection::setSignal(const QString& sig) -{ - Q_D(QDeclarativeConnection); - if (d->signal == sig) - return; - disconnectIfValid(); - d->signal = sig; - connectIfValid(); -} - - - -QT_END_NAMESPACE diff --git a/src/declarative/util/qdeclarativeconnections.cpp b/src/declarative/util/qdeclarativeconnections.cpp new file mode 100644 index 0000000..0b9e3ab --- /dev/null +++ b/src/declarative/util/qdeclarativeconnections.cpp @@ -0,0 +1,245 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtDeclarative module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qdeclarativeconnections_p.h" + +#include <qdeclarativeexpression.h> +#include <qdeclarativeproperty_p.h> +#include <qdeclarativeboundsignal_p.h> +#include <qdeclarativecontext.h> +#include <qdeclarativeinfo.h> + +#include <QtCore/qdebug.h> +#include <QtCore/qstringlist.h> + +#include <private/qobject_p.h> + +QT_BEGIN_NAMESPACE + +class QDeclarativeConnectionsPrivate : public QObjectPrivate +{ +public: + QDeclarativeConnectionsPrivate() : target(0), componentcomplete(false) {} + + QList<QDeclarativeBoundSignal*> boundsignals; + QObject *target; + + bool componentcomplete; + + QByteArray data; +}; + +/*! + \qmlclass Connections QDeclarativeConnections + \since 4.7 + \brief A Connections object describes generalized connections to signals. + + When connecting to signals in QML, the usual way is to create an + "on<Signal>" handler that reacts when a signal is received, like this: + + \qml + MouseArea { + onClicked: { foo(...) } + } + \endqml + + However, in some cases, it is not possible to connect to a signal in this + way, such as: + + \list + \i multiple connections to the same signal + \i connections outside the scope of the signal sender + \i connections to targets not defined in QML + \endlist + + When any of these are needed, the Connections object can be used instead. + + For example, the above code can be changed to use a Connections object, + like this: + + \qml + MouseArea { + Connections { + onClicked: foo(...) + } + } + \endqml + + More generally, the Connections object can be a child of some other object than + the sender of the signal: + + \qml + MouseArea { + id: area + } + ... + Connections { + target: area + onClicked: foo(...) + } + \endqml +*/ + +/*! + \internal + \class QDeclarativeConnections + \brief The QDeclarativeConnections class describes generalized connections to signals. + +*/ +QDeclarativeConnections::QDeclarativeConnections(QObject *parent) : + QObject(*(new QDeclarativeConnectionsPrivate), parent) +{ +} + +QDeclarativeConnections::~QDeclarativeConnections() +{ +} + +/*! + \qmlproperty Object Connections::target + This property holds the object that sends the signal. + + By default, the target is assumed to be the parent of the Connections. +*/ +QObject *QDeclarativeConnections::target() const +{ + Q_D(const QDeclarativeConnections); + return d->target ? d->target : parent(); +} + +void QDeclarativeConnections::setTarget(QObject *obj) +{ + Q_D(QDeclarativeConnections); + if (d->target == obj) + return; + foreach (QDeclarativeBoundSignal *s, d->boundsignals) + delete s; + d->boundsignals.clear(); + d->target = obj; + connectSignals(); + emit targetChanged(); +} + + +QByteArray +QDeclarativeConnectionsParser::compile(const QList<QDeclarativeCustomParserProperty> &props) +{ + QByteArray rv; + QDataStream ds(&rv, QIODevice::WriteOnly); + + for(int ii = 0; ii < props.count(); ++ii) + { + QString propName = QString::fromUtf8(props.at(ii).name()); + if (!propName.startsWith(QLatin1String("on")) || !propName.at(2).isUpper()) { + error(props.at(ii), QDeclarativeConnections::tr("Cannot assign to non-existent property \"%1\"").arg(propName)); + return QByteArray(); + } + + QList<QVariant> values = props.at(ii).assignedValues(); + + for (int i = 0; i < values.count(); ++i) { + const QVariant &value = values.at(i); + + if (value.userType() == qMetaTypeId<QDeclarativeCustomParserNode>()) { + error(props.at(ii), QDeclarativeConnections::tr("Connections: nested objects not allowed")); + return QByteArray(); + } else if (value.userType() == qMetaTypeId<QDeclarativeCustomParserProperty>()) { + error(props.at(ii), QDeclarativeConnections::tr("Connections: syntax error")); + return QByteArray(); + } else { + QDeclarativeParser::Variant v = qvariant_cast<QDeclarativeParser::Variant>(value); + if (v.isScript()) { + ds << propName; + ds << v.asScript(); + } else { + error(props.at(ii), QDeclarativeConnections::tr("Connections: script expected")); + return QByteArray(); + } + } + } + } + + return rv; +} + +void QDeclarativeConnectionsParser::setCustomData(QObject *object, + const QByteArray &data) +{ + QDeclarativeConnectionsPrivate *p = + static_cast<QDeclarativeConnectionsPrivate *>(QObjectPrivate::get(object)); + p->data = data; +} + + +void QDeclarativeConnections::connectSignals() +{ + Q_D(QDeclarativeConnections); + if (!d->componentcomplete) + return; + + QDataStream ds(d->data); + while (!ds.atEnd()) { + QString propName; + ds >> propName; + QString script; + ds >> script; + QDeclarativeProperty prop(target(), propName); + if (!prop.isValid()) { + qmlInfo(this) << tr("Cannot assign to non-existent property \"%1\"").arg(propName); + } else if (prop.type() & QDeclarativeProperty::SignalProperty) { + QDeclarativeBoundSignal *signal = + new QDeclarativeBoundSignal(target(), prop.method(), this); + signal->setExpression(new QDeclarativeExpression(qmlContext(this), script, 0)); + d->boundsignals += signal; + } else { + qmlInfo(this) << tr("Cannot assign to non-existent property \"%1\"").arg(propName); + } + } +} + +void QDeclarativeConnections::componentComplete() +{ + Q_D(QDeclarativeConnections); + d->componentcomplete=true; + connectSignals(); +} + +QT_END_NAMESPACE diff --git a/src/declarative/util/qdeclarativeconnection_p.h b/src/declarative/util/qdeclarativeconnections_p.h index ae2efe9..3eacf12 100644 --- a/src/declarative/util/qdeclarativeconnection_p.h +++ b/src/declarative/util/qdeclarativeconnections_p.h @@ -39,11 +39,12 @@ ** ****************************************************************************/ -#ifndef QDECLARATIVECONNECTION_H -#define QDECLARATIVECONNECTION_H +#ifndef QDECLARATIVECONNECTIONS_H +#define QDECLARATIVECONNECTIONS_H #include <qdeclarative.h> #include <qdeclarativescriptstring.h> +#include <private/qdeclarativecustomparser_p.h> #include <QtCore/qobject.h> #include <QtCore/qstring.h> @@ -56,37 +57,41 @@ QT_MODULE(Declarative) class QDeclarativeBoundSignal; class QDeclarativeContext; -class QDeclarativeConnectionPrivate; -class Q_DECLARATIVE_EXPORT QDeclarativeConnection : public QObject, public QDeclarativeParserStatus +class QDeclarativeConnectionsPrivate; +class Q_DECLARATIVE_EXPORT QDeclarativeConnections : public QObject, public QDeclarativeParserStatus { Q_OBJECT - Q_DECLARE_PRIVATE(QDeclarativeConnection) + Q_DECLARE_PRIVATE(QDeclarativeConnections) Q_INTERFACES(QDeclarativeParserStatus) - Q_PROPERTY(QObject *sender READ signalSender WRITE setSignalSender) - Q_PROPERTY(QDeclarativeScriptString script READ script WRITE setScript) - Q_PROPERTY(QString signal READ signal WRITE setSignal) + Q_PROPERTY(QObject *target READ target WRITE setTarget NOTIFY targetChanged) public: - QDeclarativeConnection(QObject *parent=0); - ~QDeclarativeConnection(); + QDeclarativeConnections(QObject *parent=0); + ~QDeclarativeConnections(); - QObject *signalSender() const; - void setSignalSender(QObject *); - QDeclarativeScriptString script() const; - void setScript(const QDeclarativeScriptString&); - QString signal() const; - void setSignal(const QString&); + QObject *target() const; + void setTarget(QObject *); + +Q_SIGNALS: + void targetChanged(); private: - void disconnectIfValid(); - void connectIfValid(); + void connectSignals(); void componentComplete(); }; +class QDeclarativeConnectionsParser : public QDeclarativeCustomParser +{ +public: + virtual QByteArray compile(const QList<QDeclarativeCustomParserProperty> &); + virtual void setCustomData(QObject *, const QByteArray &); +}; + + QT_END_NAMESPACE -QML_DECLARE_TYPE(QDeclarativeConnection) +QML_DECLARE_TYPE(QDeclarativeConnections) QT_END_HEADER diff --git a/src/declarative/util/qdeclarativeutilmodule.cpp b/src/declarative/util/qdeclarativeutilmodule.cpp index 8d3d682..2b8c7de 100644 --- a/src/declarative/util/qdeclarativeutilmodule.cpp +++ b/src/declarative/util/qdeclarativeutilmodule.cpp @@ -45,7 +45,7 @@ #include "qdeclarativeanimation_p_p.h" #include "qdeclarativebehavior_p.h" #include "qdeclarativebind_p.h" -#include "qdeclarativeconnection_p.h" +#include "qdeclarativeconnections_p.h" #include "qdeclarativedatetimeformatter_p.h" #include "qdeclarativeeasefollow_p.h" #include "qdeclarativefontloader_p.h" @@ -80,7 +80,7 @@ void QDeclarativeUtilModule::defineModule() QML_REGISTER_TYPE(Qt,4,6,Behavior,QDeclarativeBehavior); QML_REGISTER_TYPE(Qt,4,6,Binding,QDeclarativeBind); QML_REGISTER_TYPE(Qt,4,6,ColorAnimation,QDeclarativeColorAnimation); - QML_REGISTER_TYPE(Qt,4,6,Connection,QDeclarativeConnection); + QML_REGISTER_TYPE(Qt,4,6,Connections,QDeclarativeConnections); QML_REGISTER_TYPE(Qt,4,6,DateTimeFormatter,QDeclarativeDateTimeFormatter); QML_REGISTER_TYPE(Qt,4,6,EaseFollow,QDeclarativeEaseFollow);; QML_REGISTER_TYPE(Qt,4,6,FontLoader,QDeclarativeFontLoader); @@ -118,4 +118,5 @@ void QDeclarativeUtilModule::defineModule() QML_REGISTER_CUSTOM_TYPE(Qt, 4,6, ListModel, QDeclarativeListModel, QDeclarativeListModelParser); QML_REGISTER_CUSTOM_TYPE(Qt, 4,6, PropertyChanges, QDeclarativePropertyChanges, QDeclarativePropertyChangesParser); + QML_REGISTER_CUSTOM_TYPE(Qt, 4,6, Connections, QDeclarativeConnections, QDeclarativeConnectionsParser); } diff --git a/src/declarative/util/util.pri b/src/declarative/util/util.pri index 610eb3f..198e9e5 100644 --- a/src/declarative/util/util.pri +++ b/src/declarative/util/util.pri @@ -5,7 +5,7 @@ SOURCES += \ $$PWD/qdeclarativeview.cpp \ $$PWD/qfxperf.cpp \ $$PWD/qperformancelog.cpp \ - $$PWD/qdeclarativeconnection.cpp \ + $$PWD/qdeclarativeconnections.cpp \ $$PWD/qdeclarativepackage.cpp \ $$PWD/qdeclarativeanimation.cpp \ $$PWD/qdeclarativesystempalette.cpp \ @@ -37,7 +37,7 @@ HEADERS += \ $$PWD/qdeclarativeview.h \ $$PWD/qfxperf_p_p.h \ $$PWD/qperformancelog_p_p.h \ - $$PWD/qdeclarativeconnection_p.h \ + $$PWD/qdeclarativeconnections_p.h \ $$PWD/qdeclarativepackage_p.h \ $$PWD/qdeclarativeanimation_p.h \ $$PWD/qdeclarativeanimation_p_p.h \ |