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kjs_object_model.cpp

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00001 /* This file is part of the KDE libraries
00002     Copyright (C) 2005, 2006 Ian Reinhart Geiser <geiseri@kde.org>
00003     Copyright (C) 2005, 2006 Matt Broadstone <mbroadst@gmail.com>
00004     Copyright (C) 2005, 2006 Richard J. Moore <rich@kde.org>
00005     Copyright (C) 2005, 2006 Erik L. Bunce <kde@bunce.us>
00006 
00007     This library is free software; you can redistribute it and/or
00008     modify it under the terms of the GNU Library General Public
00009     License as published by the Free Software Foundation; either
00010     version 2 of the License, or (at your option) any later version.
00011 
00012     This library is distributed in the hope that it will be useful,
00013     but WITHOUT ANY WARRANTY; without even the implied warranty of
00014     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015     Library General Public License for more details.
00016 
00017     You should have received a copy of the GNU Library General Public License
00018     along with this library; see the file COPYING.LIB.  If not, write to
00019     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00020     Boston, MA 02110-1301, USA.
00021 */
00022 #include "kjs_object_model.h"
00023 
00024 #include <QtGui/QPixmap>
00025 #include <QtCore/QDebug>
00026 
00027 #include <kjs/object.h>
00028 #include <kjs/interpreter.h>
00029 #include <kjs/PropertyNameArray.h>
00030 
00031 struct Node
00032 {
00033     QByteArray name;
00034     KJS::JSObject *instance;
00035     Node *parent;
00036 };
00037 
00038 KJSObjectModel::KJSObjectModel(KJS::Interpreter *js, QObject *parent ):
00039     QAbstractItemModel(parent), m_js(js)
00040 {
00041 }
00042 
00043 void KJSObjectModel::updateModel( KJS::JSObject *root)
00044 {
00045     m_root = root;
00046     reset();
00047 }
00048 
00049 KJSObjectModel::~KJSObjectModel()
00050 {
00051 }
00052 
00053 Qt::ItemFlags KJSObjectModel::flags(const QModelIndex &index) const
00054 {
00055     if (!index.isValid())
00056         return Qt::ItemIsEnabled;
00057     return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
00058 }
00059 
00060 
00061 int KJSObjectModel::rowCount(const QModelIndex &parent ) const
00062 {
00063     KJS::ExecState *exec = m_js->globalExec();
00064     KJS::PropertyNameArray props;
00065     if (!parent.isValid())
00066         m_root->getPropertyNames(exec, props);
00067     else
00068     {
00069         Node *item = static_cast<Node*>(parent.internalPointer());
00070         item->instance->getPropertyNames(exec, props);
00071     }
00072     return props.size();
00073 }
00074 
00075 int KJSObjectModel::columnCount(const QModelIndex &parent ) const
00076 {
00077     Q_UNUSED(parent);
00078     return 1;
00079 }
00080 
00081 QVariant KJSObjectModel::headerData(int section, Qt::Orientation orientation, int role) const
00082 {
00083     if (orientation == Qt::Horizontal && role == Qt::DisplayRole)
00084     {
00085         if( section == 0)
00086             return "Object Name";
00087         else
00088             return "Value";
00089     }
00090     return QVariant();
00091 }
00092 
00093 QModelIndex KJSObjectModel::index(int row, int column, const QModelIndex &parent ) const
00094 {
00095     KJS::JSObject *parentInstance = 0;
00096     Node *childItem = 0;
00097     KJS::ExecState *exec = m_js->globalExec();
00098 
00099     if (!parent.isValid())
00100     {
00101         if (m_root)
00102             parentInstance = m_root;
00103         else
00104             return QModelIndex();
00105     }
00106     else
00107         parentInstance = static_cast<Node*>(parent.internalPointer())->instance;
00108     int idx = 0;
00109     KJS::PropertyNameArray props;
00110     parentInstance->getPropertyNames(exec, props);
00111     for( KJS::PropertyNameArrayIterator ref = props.begin(); ref != props.end(); ref++)
00112     {
00113         if( idx == row)
00114         {
00115                 childItem = new Node;
00116                 childItem->name = ref->ascii(); //### M.O.: this is wrong, can be unicode.
00117                 childItem->instance = parentInstance->get( exec,
00118                         childItem->name.constData() )->toObject(exec);
00119                 childItem->parent = static_cast<Node*>(parent.internalPointer());
00120                 break;
00121         }
00122         ++idx;
00123     }
00124     if (childItem)
00125         return createIndex(row, column, childItem);
00126 
00127     return QModelIndex();
00128 }
00129 
00130 QModelIndex KJSObjectModel::parent(const QModelIndex &index) const
00131 {
00132     if (!index.isValid())
00133     {
00134         Node *node = new Node;
00135         node->instance = m_root;
00136         node->name = "Objects";
00137         node->parent = 0;
00138         return createIndex(0, index.column(), node);
00139     }
00140 
00141     Node *parentItem = static_cast<Node*>(index.internalPointer())->parent;
00142     if ( parentItem )
00143     {
00144         Node *node = new Node;
00145         node->instance = parentItem->instance;
00146         node->name = parentItem->name;
00147         node->parent = parentItem->parent;
00148         return createIndex(0, index.column(), node);
00149     }
00150     else
00151         return QModelIndex();
00152 }
00153 
00154 QVariant KJSObjectModel::data(const QModelIndex &index, int role) const
00155 {
00156     if (!index.isValid())
00157         return QVariant();
00158 
00159     Node *item = static_cast<Node*>(index.internalPointer());
00160     KJS::JSObject *instance = item->instance;
00161 
00162     if (role == Qt::DecorationRole )
00163     {
00164         if( instance->implementsConstruct() )
00165             return QPixmap(":/images/class.png");
00166         else if( instance->implementsCall() )
00167             return QPixmap(":/images/method.png");
00168         else
00169             return QPixmap(":/images/property.png");
00170     }
00171     if( role == Qt::TextColorRole )
00172     {
00173         if( instance->implementsConstruct() )
00174             return QColor("blue");
00175         else if( instance->implementsCall() )
00176             return QColor("green");
00177         else
00178             return QColor("black");
00179     }
00180     if (role == Qt::DisplayRole)
00181         return item->name;
00182     return QVariant();
00183 }
00184 
00185 #include "kjs_object_model.moc"

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