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/*
* Copyright 2015 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Zsombor Egri <zsombor.egri@canonical.com>
*/
#include "ucnamespace.h"
#include "ucdeprecatedtheme.h"
#include "uctheme.h"
#include "listener.h"
#include <QtQml/QQmlComponent>
#include <QtQml/QQmlContext>
#include <QtQml/QQmlInfo>
#include <QtQml/QQmlEngine>
/*!
\qmltype Theme
\instantiates UCTheme
\inqmlmodule Ubuntu.Components 1.1
\ingroup theming
\brief The Theme class provides facilities to interact with the current theme.
A global instance is exposed as the \b Theme context property.
The theme defines the visual aspect of the Ubuntu components.
Example changing the current theme:
\qml
import QtQuick 2.4
import Ubuntu.Components 1.2
Item {
Button {
onClicked: Theme.name = "Ubuntu.Components.Themes.Ambiance"
}
}
\endqml
Example creating a style component:
\qml
import QtQuick 2.4
import Ubuntu.Components 1.2
StyledItem {
id: myItem
style: Theme.createStyleComponent("MyItemStyle.qml", myItem)
}
\endqml
\sa {StyledItem}
*/
UCDeprecatedTheme::UCDeprecatedTheme(QObject *parent)
: QObject(parent)
{
m_notes = QHash<QString, bool>();
connect(&UCTheme::defaultTheme(), &UCTheme::nameChanged,
this, &UCDeprecatedTheme::nameChanged);
connect(&UCTheme::defaultTheme(), &UCTheme::paletteChanged,
this, &UCDeprecatedTheme::paletteChanged);
}
void UCDeprecatedTheme::showDeprecatedNote(QObject *onItem, const char *note)
{
QQmlContext ctx(QQmlEngine::contextForObject(onItem));
// No warnings due to deprecated code used in the components themselves
if (ctx.baseUrl().toString().contains("/Ubuntu/Components/"))
return;
// Warnings without a filename are not helpful
if (ctx.baseUrl().isEmpty())
return;
QString noteId(QString("%1.%2").arg(note).arg(onItem->metaObject()->className()));
if (m_notes.contains(noteId))
return;
QByteArray suppressNote = qgetenv("SUPPRESS_DEPRECATED_NOTE");
if (suppressNote.isEmpty() || suppressNote != "yes") {
qmlInfo(onItem) << note;
m_notes.insert(noteId, true);
}
}
/*!
\qmlproperty string Theme::name
The name of the current theme.
*/
QString UCDeprecatedTheme::name()
{
showDeprecatedNote(this, "Theme.name is deprecated. Use ThemeSettings instead.");
return UCTheme::defaultTheme().name();
}
void UCDeprecatedTheme::setName(const QString& name)
{
showDeprecatedNote(this, "Theme.name is deprecated. Use ThemeSettings instead.");
UCTheme::defaultTheme().setName(name);
}
void UCDeprecatedTheme::resetName()
{
showDeprecatedNote(this, "Theme.name is deprecated. Use ThemeSettings instead.");
UCTheme::defaultTheme().resetName();
}
/*!
\qmlproperty Palette Theme::palette
The palette of the current theme.
*/
QObject* UCDeprecatedTheme::palette()
{
showDeprecatedNote(this, "Theme.palette is deprecated. Use ThemeSettings instead.");
return UCTheme::defaultTheme().palette();
}
/*!
\qmlmethod Component Theme::createStyleComponent(string styleName, object parent)
Returns an instance of the style component named \a styleName.
*/
QQmlComponent* UCDeprecatedTheme::createStyleComponent(const QString& styleName, QObject* parent)
{
showDeprecatedNote(parent, "Theme.createStyleComponent() is deprecated. Use ThemeSettings instead.");
return UCTheme::defaultTheme().createStyleComponent(styleName, parent, BUILD_VERSION(1, 2));
}
void UCDeprecatedTheme::registerToContext(QQmlContext* context)
{
UCTheme::defaultTheme().m_engine = context->engine();
UCTheme::defaultTheme().updateEnginePaths();
// register deprecated Theme property
context->setContextProperty("Theme", this);
ContextPropertyChangeListener *themeChangeListener =
new ContextPropertyChangeListener(context, "Theme");
QObject::connect(this, SIGNAL(nameChanged()),
themeChangeListener, SLOT(updateContextProperty()));
}
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