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
|
/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
******************************************************************************/
#include "qwindowsinternalmimedata.h"
#include "qwindowscontext.h"
#include "qwindowsmime.h"
#include <QtCore/qdebug.h>
#include <QtCore/qvariant.h>
/*!
\class QWindowsInternalMimeDataBase
\brief Base for implementations of QInternalMimeData using a IDataObject COM object.
In clipboard handling and Drag and drop, static instances
of QInternalMimeData implementations are kept and passed to the client.
QInternalMimeData provides virtuals that query the formats and retrieve
mime data on demand when the client invokes functions like QMimeData::hasHtml(),
QMimeData::html() on the instance returned. Otherwise, expensive
construction of a new QMimeData object containing all possible
formats would have to be done in each call to mimeData().
The base class introduces new virtuals to obtain and release
the instances IDataObject from the clipboard or Drag and Drop and
does conversion using QWindowsMime classes.
\sa QInternalMimeData, QWindowsMime, QWindowsMimeConverter
\internal
*/
bool QWindowsInternalMimeData::hasFormat_sys(const QString &mime) const
{
IDataObject *pDataObj = retrieveDataObject();
if (!pDataObj)
return false;
const QWindowsMimeConverter &mc = QWindowsContext::instance()->mimeConverter();
const bool has = mc.converterToMime(mime, pDataObj) != nullptr;
releaseDataObject(pDataObj);
qCDebug(lcQpaMime) << __FUNCTION__ << mime << has;
return has;
}
QStringList QWindowsInternalMimeData::formats_sys() const
{
IDataObject *pDataObj = retrieveDataObject();
if (!pDataObj)
return QStringList();
const QWindowsMimeConverter &mc = QWindowsContext::instance()->mimeConverter();
const QStringList fmts = mc.allMimesForFormats(pDataObj);
releaseDataObject(pDataObj);
qCDebug(lcQpaMime) << __FUNCTION__ << fmts;
return fmts;
}
QVariant QWindowsInternalMimeData::retrieveData_sys(const QString &mimeType, QMetaType type) const
{
IDataObject *pDataObj = retrieveDataObject();
if (!pDataObj)
return QVariant();
QVariant result;
const QWindowsMimeConverter &mc = QWindowsContext::instance()->mimeConverter();
if (auto converter = mc.converterToMime(mimeType, pDataObj))
result = converter->convertToMime(mimeType, pDataObj, type);
releaseDataObject(pDataObj);
if (QWindowsContext::verbose) {
qCDebug(lcQpaMime) <<__FUNCTION__ << ' ' << mimeType << ' ' << type.name()
<< " returns " << result.metaType().name()
<< (result.metaType().id() != QMetaType::QByteArray ? result.toString() : QStringLiteral("<data>"));
}
return result;
}
|
