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Diffstat (limited to 'src/quicktemplates2/qquickdeferredexecute.cpp')
| -rw-r--r-- | src/quicktemplates2/qquickdeferredexecute.cpp | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/src/quicktemplates2/qquickdeferredexecute.cpp b/src/quicktemplates2/qquickdeferredexecute.cpp deleted file mode 100644 index 817415c4..00000000 --- a/src/quicktemplates2/qquickdeferredexecute.cpp +++ /dev/null @@ -1,150 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: http://www.qt.io/licensing/ -** -** This file is part of the Qt Quick Templates 2 module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL3$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see http://www.qt.io/terms-conditions. For further -** information use the contact form at http://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPLv3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or later as published by the Free -** Software Foundation and appearing in the file LICENSE.GPL included in -** the packaging of this file. Please review the following information to -** ensure the GNU General Public License version 2.0 requirements will be -** met: http://www.gnu.org/licenses/gpl-2.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qquickdeferredexecute_p_p.h" - -#include <QtCore/qhash.h> -#include <QtQml/qqmlengine.h> -#include <QtQml/private/qqmldata_p.h> -#include <QtQml/private/qqmlcomponent_p.h> -#include <QtQml/private/qqmlobjectcreator_p.h> - -#include <deque> - -QT_BEGIN_NAMESPACE - -namespace QtQuickPrivate { - -typedef QHash<size_t, QQmlComponentPrivate::DeferredState *> DeferredStates; - -static inline size_t qHash(QObject *object, const QString &propertyName) -{ - return ::qHash(object) + ::qHash(propertyName); -} - -Q_GLOBAL_STATIC(DeferredStates, deferredStates) - -static void cancelDeferred(QQmlData *ddata, int propertyIndex) -{ - auto dit = ddata->deferredData.rbegin(); - while (dit != ddata->deferredData.rend()) { - (*dit)->bindings.remove(propertyIndex); - ++dit; - } -} - -static bool beginDeferred(QQmlEnginePrivate *enginePriv, const QQmlProperty &property, QQmlComponentPrivate::DeferredState *deferredState) -{ - QObject *object = property.object(); - QQmlData *ddata = QQmlData::get(object); - Q_ASSERT(!ddata->deferredData.isEmpty()); - - int propertyIndex = property.index(); - int wasInProgress = enginePriv->inProgressCreations; - - for (auto dit = ddata->deferredData.rbegin(); dit != ddata->deferredData.rend(); ++dit) { - QQmlData::DeferredData *deferData = *dit; - - auto bindings = deferData->bindings; - auto range = bindings.equal_range(propertyIndex); - if (range.first == bindings.end()) - continue; - - QQmlComponentPrivate::ConstructionState *state = new QQmlComponentPrivate::ConstructionState; - state->completePending = true; - - QQmlContextData *creationContext = nullptr; - state->creator.reset(new QQmlObjectCreator(deferData->context->parent(), deferData->compilationUnit, creationContext)); - - enginePriv->inProgressCreations++; - - std::deque<const QV4::CompiledData::Binding *> reversedBindings; - std::copy(range.first, range.second, std::front_inserter(reversedBindings)); - state->creator->beginPopulateDeferred(deferData->context); - for (const QV4::CompiledData::Binding *binding : reversedBindings) - state->creator->populateDeferredBinding(property, deferData->deferredIdx, binding); - state->creator->finalizePopulateDeferred(); - state->errors << state->creator->errors; - - deferredState->constructionStates += state; - - // Cleanup any remaining deferred bindings for this property, also in inner contexts, - // to avoid executing them later and overriding the property that was just populated. - cancelDeferred(ddata, propertyIndex); - break; - } - - return enginePriv->inProgressCreations > wasInProgress; -} - -void beginDeferred(QObject *object, const QString &property) -{ - QQmlData *data = QQmlData::get(object); - if (data && !data->deferredData.isEmpty() && !data->wasDeleted(object) && data->context) { - QQmlEnginePrivate *ep = QQmlEnginePrivate::get(data->context->engine()); - - QQmlComponentPrivate::DeferredState *state = new QQmlComponentPrivate::DeferredState; - if (beginDeferred(ep, QQmlProperty(object, property), state)) - deferredStates()->insert(qHash(object, property), state); - else - delete state; - - // Release deferred data for those compilation units that no longer have deferred bindings - data->releaseDeferredData(); - } -} - -void cancelDeferred(QObject *object, const QString &property) -{ - QQmlData *data = QQmlData::get(object); - if (data) - cancelDeferred(data, QQmlProperty(object, property).index()); -} - -void completeDeferred(QObject *object, const QString &property) -{ - QQmlData *data = QQmlData::get(object); - QQmlComponentPrivate::DeferredState *state = deferredStates()->take(qHash(object, property)); - if (data && state && !data->wasDeleted(object)) { - QQmlEnginePrivate *ep = QQmlEnginePrivate::get(data->context->engine()); - QQmlComponentPrivate::completeDeferred(ep, state); - } - delete state; -} - -} // QtQuickPrivate - -QT_END_NAMESPACE |