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
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qquickdesignersupportmetainfo_p.h"
#include "qquickdesignersupportproperties_p.h"
#include "qquickdesignercustomobjectdata_p.h"
#include <QGlobalStatic>
#include <QQmlContext>
#include <QQmlEngine>
#include <private/qqmlanybinding_p.h>
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
typedef QHash<QObject*, QQuickDesignerCustomObjectData*> CustomObjectDataHash;
Q_GLOBAL_STATIC(CustomObjectDataHash, s_designerObjectToDataHash)
struct HandleDestroyedFunctor {
QQuickDesignerCustomObjectData *data;
void operator()() { data->handleDestroyed(); }
};
QQuickDesignerCustomObjectData::QQuickDesignerCustomObjectData(QObject *object)
: m_object(object)
{
if (object) {
populateResetHashes();
s_designerObjectToDataHash()->insert(object, this);
HandleDestroyedFunctor functor;
functor.data = this;
QObject::connect(object, &QObject::destroyed, functor);
}
}
void QQuickDesignerCustomObjectData::registerData(QObject *object)
{
new QQuickDesignerCustomObjectData(object);
}
QQuickDesignerCustomObjectData *QQuickDesignerCustomObjectData::get(QObject *object)
{
return s_designerObjectToDataHash()->value(object);
}
QVariant QQuickDesignerCustomObjectData::getResetValue(QObject *object, const QQuickDesignerSupport::PropertyName &propertyName)
{
QQuickDesignerCustomObjectData* data = get(object);
if (data)
return data->getResetValue(propertyName);
return QVariant();
}
void QQuickDesignerCustomObjectData::doResetProperty(QObject *object, QQmlContext *context, const QQuickDesignerSupport::PropertyName &propertyName)
{
QQuickDesignerCustomObjectData* data = get(object);
if (data)
data->doResetProperty(context, propertyName);
}
bool QQuickDesignerCustomObjectData::hasValidResetBinding(QObject *object, const QQuickDesignerSupport::PropertyName &propertyName)
{
QQuickDesignerCustomObjectData* data = get(object);
if (data)
return data->hasValidResetBinding(propertyName);
return false;
}
bool QQuickDesignerCustomObjectData::hasBindingForProperty(QObject *object,
QQmlContext *context,
const QQuickDesignerSupport::PropertyName &propertyName,
bool *hasChanged)
{
QQuickDesignerCustomObjectData* data = get(object);
if (data)
return data->hasBindingForProperty(context, propertyName, hasChanged);
return false;
}
void QQuickDesignerCustomObjectData::setPropertyBinding(QObject *object,
QQmlContext *context,
const QQuickDesignerSupport::PropertyName &propertyName,
const QString &expression)
{
QQuickDesignerCustomObjectData* data = get(object);
if (data)
data->setPropertyBinding(context, propertyName, expression);
}
void QQuickDesignerCustomObjectData::keepBindingFromGettingDeleted(QObject *object,
QQmlContext *context,
const QQuickDesignerSupport::PropertyName &propertyName)
{
QQuickDesignerCustomObjectData* data = get(object);
if (data)
data->keepBindingFromGettingDeleted(context, propertyName);
}
void QQuickDesignerCustomObjectData::populateResetHashes()
{
const QQuickDesignerSupport::PropertyNameList propertyNameList =
QQuickDesignerSupportProperties::propertyNameListForWritableProperties(object());
const QMetaObject *mo = object()->metaObject();
QByteArrayList deferredPropertyNames;
const int namesIndex = mo->indexOfClassInfo("DeferredPropertyNames");
if (namesIndex != -1) {
QMetaClassInfo classInfo = mo->classInfo(namesIndex);
deferredPropertyNames = QByteArray(classInfo.value()).split(',');
}
for (const QQuickDesignerSupport::PropertyName &propertyName : propertyNameList) {
if (deferredPropertyNames.contains(propertyName))
continue;
QQmlProperty property(object(), QString::fromUtf8(propertyName), QQmlEngine::contextForObject(object()));
auto binding = QQmlAnyBinding::ofProperty(property);
if (binding) {
m_resetBindingHash.insert(propertyName, binding);
} else if (property.isWritable()) {
m_resetValueHash.insert(propertyName, property.read());
}
}
}
QObject *QQuickDesignerCustomObjectData::object() const
{
return m_object;
}
QVariant QQuickDesignerCustomObjectData::getResetValue(const QQuickDesignerSupport::PropertyName &propertyName) const
{
return m_resetValueHash.value(propertyName);
}
void QQuickDesignerCustomObjectData::doResetProperty(QQmlContext *context, const QQuickDesignerSupport::PropertyName &propertyName)
{
QQmlProperty property(object(), QString::fromUtf8(propertyName), context);
if (!property.isValid())
return;
// remove existing binding
QQmlAnyBinding::takeFrom(property);
if (hasValidResetBinding(propertyName)) {
QQmlAnyBinding binding = getResetBinding(propertyName);
binding.installOn(property);
if (binding.isAbstractPropertyBinding()) {
// for new style properties, we will evaluate during setBinding anyway
static_cast<QQmlBinding *>(binding.asAbstractBinding())->update();
}
} else if (property.isResettable()) {
property.reset();
} else if (property.propertyTypeCategory() == QQmlProperty::List) {
QQmlListReference list = qvariant_cast<QQmlListReference>(property.read());
if (!QQuickDesignerSupportProperties::hasFullImplementedListInterface(list)) {
qWarning() << "Property list interface not fully implemented for Class " << property.property().typeName() << " in property " << property.name() << "!";
return;
}
list.clear();
} else if (property.isWritable()) {
if (property.read() == getResetValue(propertyName))
return;
property.write(getResetValue(propertyName));
}
}
bool QQuickDesignerCustomObjectData::hasValidResetBinding(const QQuickDesignerSupport::PropertyName &propertyName) const
{
return m_resetBindingHash.contains(propertyName) && m_resetBindingHash.value(propertyName);
}
QQmlAnyBinding QQuickDesignerCustomObjectData::getResetBinding(const QQuickDesignerSupport::PropertyName &propertyName) const
{
return m_resetBindingHash.value(propertyName);
}
bool QQuickDesignerCustomObjectData::hasBindingForProperty(QQmlContext *context,
const QQuickDesignerSupport::PropertyName &propertyName,
bool *hasChanged) const
{
if (QQuickDesignerSupportProperties::isPropertyBlackListed(propertyName))
return false;
QQmlProperty property(object(), QString::fromUtf8(propertyName), context);
bool hasBinding = QQmlAnyBinding::ofProperty(property);
if (hasChanged) {
*hasChanged = hasBinding != m_hasBindingHash.value(propertyName, false);
if (*hasChanged)
m_hasBindingHash.insert(propertyName, hasBinding);
}
return hasBinding;
}
void QQuickDesignerCustomObjectData::setPropertyBinding(QQmlContext *context,
const QQuickDesignerSupport::PropertyName &propertyName,
const QString &expression)
{
QQmlProperty property(object(), QString::fromUtf8(propertyName), context);
if (!property.isValid())
return;
if (property.isProperty()) {
QString url = u"@designer"_s;
int lineNumber = 0;
QQmlAnyBinding binding = QQmlAnyBinding::createFromCodeString(property,
expression, object(), QQmlContextData::get(context), url, lineNumber);
binding.installOn(property);
if (binding.isAbstractPropertyBinding()) {
// for new style properties, we will evaluate during setBinding anyway
static_cast<QQmlBinding *>(binding.asAbstractBinding())->update();
}
if (binding.hasError()) {
if (property.property().userType() == QMetaType::QString)
property.write(QVariant(QLatin1Char('#') + expression + QLatin1Char('#')));
}
} else {
qWarning() << Q_FUNC_INFO << ": Cannot set binding for property" << propertyName << ": property is unknown for type";
}
}
void QQuickDesignerCustomObjectData::keepBindingFromGettingDeleted(QQmlContext *context,
const QQuickDesignerSupport::PropertyName &propertyName)
{
//Refcounting is taking care
Q_UNUSED(context);
Q_UNUSED(propertyName);
}
void QQuickDesignerCustomObjectData::handleDestroyed()
{
s_designerObjectToDataHash()->remove(m_object);
delete this;
}
QT_END_NAMESPACE
|
