summaryrefslogtreecommitdiff
path: root/src/declarative/qml/qdeclarativeengine_p.h
blob: 0fb9f13e82fa5172b6ebb65a429d435eb2810028 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 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 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QDECLARATIVEENGINE_P_H
#define QDECLARATIVEENGINE_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include "qdeclarativeengine.h"

#include "private/qdeclarativetypeloader_p.h"
#include "private/qdeclarativeimport_p.h"
#include "private/qpodvector_p.h"
#include "qdeclarative.h"
#include "private/qdeclarativevaluetype_p.h"
#include "qdeclarativecontext.h"
#include "private/qdeclarativecontext_p.h"
#include "qdeclarativeexpression.h"
#include "qdeclarativeimageprovider.h"
#include "private/qdeclarativeproperty_p.h"
#include "private/qdeclarativepropertycache_p.h"
#include "private/qdeclarativeobjectscriptclass_p.h"
#include "private/qdeclarativecontextscriptclass_p.h"
#include "private/qdeclarativevaluetypescriptclass_p.h"
#include "private/qdeclarativemetatype_p.h"
#include "private/qdeclarativedirparser_p.h"

#include <QtScript/QScriptClass>
#include <QtScript/QScriptValue>
#include <QtScript/QScriptString>
#include <QtCore/qstring.h>
#include <QtCore/qlist.h>
#include <QtCore/qpair.h>
#include <QtCore/qstack.h>
#include <QtCore/qmutex.h>
#include <QtScript/qscriptengine.h>

#include <private/qobject_p.h>

QT_BEGIN_NAMESPACE

class QDeclarativeContext;
class QDeclarativeEngine;
class QDeclarativeContextPrivate;
class QDeclarativeExpression;
class QDeclarativeContextScriptClass;
class QDeclarativeImportDatabase;
class QDeclarativeObjectScriptClass;
class QDeclarativeTypeNameScriptClass;
class QDeclarativeValueTypeScriptClass;
class QNetworkReply;
class QNetworkAccessManager;
class QDeclarativeNetworkAccessManagerFactory;
class QDeclarativeAbstractBinding;
class QScriptDeclarativeClass;
class QDeclarativeTypeNameScriptClass;
class QDeclarativeTypeNameCache;
class QDeclarativeComponentAttached;
class QDeclarativeListScriptClass;
class QDeclarativeCleanup;
class QDeclarativeDelayedError;
class QDeclarativeWorkerScriptEngine;
class QDeclarativeGlobalScriptClass;
class QDir;

class QDeclarativeScriptEngine : public QScriptEngine
{
public:
    QDeclarativeScriptEngine(QDeclarativeEnginePrivate *priv);
    virtual ~QDeclarativeScriptEngine();

    QUrl resolvedUrl(QScriptContext *context, const QUrl& url); // resolved against p's context, or baseUrl if no p
    static QScriptValue resolvedUrl(QScriptContext *ctxt, QScriptEngine *engine);

    static QDeclarativeScriptEngine *get(QScriptEngine* e) { return static_cast<QDeclarativeScriptEngine*>(e); }

    QDeclarativeEnginePrivate *p;

    // User by SQL API
    QScriptClass *sqlQueryClass;
    QString offlineStoragePath;

    // Used by DOM Core 3 API
    QScriptClass *namedNodeMapClass;
    QScriptClass *nodeListClass;

    QUrl baseUrl;

    virtual QNetworkAccessManager *networkAccessManager();
};

class Q_AUTOTEST_EXPORT QDeclarativeEnginePrivate : public QObjectPrivate
{
    Q_DECLARE_PUBLIC(QDeclarativeEngine)
public:
    QDeclarativeEnginePrivate(QDeclarativeEngine *);
    ~QDeclarativeEnginePrivate();

    void init();

    struct CapturedProperty {
        CapturedProperty(QObject *o, int c, int n)
            : object(o), coreIndex(c), notifier(0), notifyIndex(n) {}
        CapturedProperty(QDeclarativeNotifier *n)
            : object(0), coreIndex(-1), notifier(n), notifyIndex(-1) {}

        QObject *object;
        int coreIndex;
        QDeclarativeNotifier *notifier;
        int notifyIndex;
    };
    bool captureProperties;
    QPODVector<CapturedProperty, 16> capturedProperties;

    QDeclarativeContext *rootContext;
    bool isDebugging;

    bool outputWarningsToStdErr;

    QDeclarativeContextScriptClass *contextClass;
    QDeclarativeContextData *sharedContext;
    QObject *sharedScope;
    QDeclarativeObjectScriptClass *objectClass;
    QDeclarativeValueTypeScriptClass *valueTypeClass;
    QDeclarativeTypeNameScriptClass *typeNameClass;
    QDeclarativeListScriptClass *listClass;
    // Global script class
    QDeclarativeGlobalScriptClass *globalClass;

    // Registered cleanup handlers
    QDeclarativeCleanup *cleanup;

    // Bindings that have had errors during startup
    QDeclarativeDelayedError *erroredBindings;
    int inProgressCreations;

    QDeclarativeScriptEngine scriptEngine;

    QDeclarativeWorkerScriptEngine *getWorkerScriptEngine();
    QDeclarativeWorkerScriptEngine *workerScriptEngine;

    QUrl baseUrl;

    template<class T>
    struct SimpleList {
        SimpleList()
            : count(0), values(0) {}
        SimpleList(int r)
            : count(0), values(new T*[r]) {}

        int count;
        T **values;

        void append(T *v) {
            values[count++] = v;
        }

        T *at(int idx) const {
            return values[idx];
        }

        void clear() {
            delete [] values;
        }
    };

    static void clear(SimpleList<QDeclarativeAbstractBinding> &);
    static void clear(SimpleList<QDeclarativeParserStatus> &);

    QList<SimpleList<QDeclarativeAbstractBinding> > bindValues;
    QList<SimpleList<QDeclarativeParserStatus> > parserStatus;
    QList<QPair<QDeclarativeGuard<QObject>,int> > finalizedParserStatus;
    QDeclarativeComponentAttached *componentAttached;

    void registerFinalizedParserStatusObject(QObject *obj, int index) {
        finalizedParserStatus.append(qMakePair(QDeclarativeGuard<QObject>(obj), index));
    }

    bool inBeginCreate;

    QNetworkAccessManager *createNetworkAccessManager(QObject *parent) const;
    QNetworkAccessManager *getNetworkAccessManager() const;
    mutable QNetworkAccessManager *networkAccessManager;
    mutable QDeclarativeNetworkAccessManagerFactory *networkAccessManagerFactory;

    QHash<QString,QSharedPointer<QDeclarativeImageProvider> > imageProviders;
    QDeclarativeImageProvider::ImageType getImageProviderType(const QUrl &url);
    QImage getImageFromProvider(const QUrl &url, QSize *size, const QSize& req_size);
    QPixmap getPixmapFromProvider(const QUrl &url, QSize *size, const QSize& req_size);

    mutable QMutex mutex;

    QDeclarativeTypeLoader typeLoader;
    QDeclarativeImportDatabase importDatabase;

    QString offlineStoragePath;

    mutable quint32 uniqueId;
    quint32 getUniqueId() const {
        return uniqueId++;
    }

    QDeclarativeValueTypeFactory valueTypes;

    QHash<const QMetaObject *, QDeclarativePropertyCache *> propertyCache;
    QHash<QPair<QDeclarativeType *, int>, QDeclarativePropertyCache *> typePropertyCache;
    inline QDeclarativePropertyCache *cache(QObject *obj);
    inline QDeclarativePropertyCache *cache(const QMetaObject *);
    inline QDeclarativePropertyCache *cache(QDeclarativeType *, int, QDeclarativeError &error);
    QDeclarativePropertyCache *createCache(const QMetaObject *);
    QDeclarativePropertyCache *createCache(QDeclarativeType *, int, QDeclarativeError &error);

    void registerCompositeType(QDeclarativeCompiledData *);

    bool isQObject(int);
    QObject *toQObject(const QVariant &, bool *ok = 0) const;
    QDeclarativeMetaType::TypeCategory typeCategory(int) const;
    bool isList(int) const;
    int listType(int) const;
    const QMetaObject *rawMetaObjectForType(int) const;
    const QMetaObject *metaObjectForType(int) const;
    QHash<int, int> m_qmlLists;
    QHash<int, QDeclarativeCompiledData *> m_compositeTypes;

    QHash<QString, QScriptValue> m_sharedScriptImports;

    QScriptValue scriptValueFromVariant(const QVariant &);
    QVariant scriptValueToVariant(const QScriptValue &, int hint = QVariant::Invalid);

    void sendQuit();
    void warning(const QDeclarativeError &);
    void warning(const QList<QDeclarativeError> &);
    static void warning(QDeclarativeEngine *, const QDeclarativeError &);
    static void warning(QDeclarativeEngine *, const QList<QDeclarativeError> &);
    static void warning(QDeclarativeEnginePrivate *, const QDeclarativeError &);
    static void warning(QDeclarativeEnginePrivate *, const QList<QDeclarativeError> &);

    static QScriptValue qmlScriptObject(QObject*, QDeclarativeEngine*);

    static QScriptValue createComponent(QScriptContext*, QScriptEngine*);
    static QScriptValue createQmlObject(QScriptContext*, QScriptEngine*);
    static QScriptValue isQtObject(QScriptContext*, QScriptEngine*);
    static QScriptValue vector3d(QScriptContext*, QScriptEngine*);
    static QScriptValue rgba(QScriptContext*, QScriptEngine*);
    static QScriptValue hsla(QScriptContext*, QScriptEngine*);
    static QScriptValue point(QScriptContext*, QScriptEngine*);
    static QScriptValue size(QScriptContext*, QScriptEngine*);
    static QScriptValue rect(QScriptContext*, QScriptEngine*);

    static QScriptValue lighter(QScriptContext*, QScriptEngine*);
    static QScriptValue darker(QScriptContext*, QScriptEngine*);
    static QScriptValue tint(QScriptContext*, QScriptEngine*);

    static QScriptValue desktopOpenUrl(QScriptContext*, QScriptEngine*);
    static QScriptValue fontFamilies(QScriptContext*, QScriptEngine*);
    static QScriptValue md5(QScriptContext*, QScriptEngine*);
    static QScriptValue btoa(QScriptContext*, QScriptEngine*);
    static QScriptValue atob(QScriptContext*, QScriptEngine*);
    static QScriptValue consoleLog(QScriptContext*, QScriptEngine*);
    static QScriptValue quit(QScriptContext*, QScriptEngine*);

#ifndef QT_NO_DATESTRING
    static QScriptValue formatDate(QScriptContext*, QScriptEngine*);
    static QScriptValue formatTime(QScriptContext*, QScriptEngine*);
    static QScriptValue formatDateTime(QScriptContext*, QScriptEngine*);
#endif
    static QScriptEngine *getScriptEngine(QDeclarativeEngine *e) { if (!e) return 0; return &e->d_func()->scriptEngine; }
    static QDeclarativeEngine *getEngine(QScriptEngine *e) { return static_cast<QDeclarativeScriptEngine*>(e)->p->q_func(); }
    static QDeclarativeEnginePrivate *get(QDeclarativeEngine *e) { return e->d_func(); }
    static QDeclarativeEnginePrivate *get(QDeclarativeContext *c) { return (c && c->engine()) ? QDeclarativeEnginePrivate::get(c->engine()) : 0; }
    static QDeclarativeEnginePrivate *get(QDeclarativeContextData *c) { return (c && c->engine) ? QDeclarativeEnginePrivate::get(c->engine) : 0; }
    static QDeclarativeEnginePrivate *get(QScriptEngine *e) { return static_cast<QDeclarativeScriptEngine*>(e)->p; }
    static QDeclarativeEngine *get(QDeclarativeEnginePrivate *p) { return p->q_func(); }
    QDeclarativeContextData *getContext(QScriptContext *);
    QUrl getUrl(QScriptContext *);

    static QString urlToLocalFileOrQrc(const QUrl& url);

    static void defineModule();
    static void defineModuleCompat();

    static bool qml_debugging_enabled;
};

/*!
Returns a QDeclarativePropertyCache for \a obj if one is available.

If \a obj is null, being deleted or contains a dynamic meta object 0
is returned.

The returned cache is not referenced, so if it is to be stored, call addref().
*/
QDeclarativePropertyCache *QDeclarativeEnginePrivate::cache(QObject *obj)
{
    if (!obj || QObjectPrivate::get(obj)->metaObject || QObjectPrivate::get(obj)->wasDeleted)
        return 0;

    const QMetaObject *mo = obj->metaObject();
    QDeclarativePropertyCache *rv = propertyCache.value(mo);
    if (!rv) rv = createCache(mo);
    return rv;
}

/*!
Returns a QDeclarativePropertyCache for \a metaObject.

As the cache is persisted for the life of the engine, \a metaObject must be
a static "compile time" meta-object, or a meta-object that is otherwise known to
exist for the lifetime of the QDeclarativeEngine.

The returned cache is not referenced, so if it is to be stored, call addref().
*/
QDeclarativePropertyCache *QDeclarativeEnginePrivate::cache(const QMetaObject *metaObject)
{
    Q_ASSERT(metaObject);

    QDeclarativePropertyCache *rv = propertyCache.value(metaObject);
    if (!rv) rv = createCache(metaObject);
    return rv;
}

/*!
Returns a QDeclarativePropertyCache for \a type with \a minorVersion.

The returned cache is not referenced, so if it is to be stored, call addref().
*/
QDeclarativePropertyCache *QDeclarativeEnginePrivate::cache(QDeclarativeType *type, int minorVersion, QDeclarativeError &error)
{
    Q_ASSERT(type);

    if (minorVersion == -1 || !type->containsRevisionedAttributes())
        return cache(type->metaObject());

    QDeclarativePropertyCache *rv = typePropertyCache.value(qMakePair(type, minorVersion));
    if (!rv) rv = createCache(type, minorVersion, error);
    return rv;
}

QT_END_NAMESPACE

#endif // QDECLARATIVEENGINE_P_H