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
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "cppvirtualfunctionassistprovider.h"
#include "cppvirtualfunctionproposalitem.h"
#include "cpptoolsreuse.h"
#include "functionutils.h"
#include "symbolfinder.h"
#include <cplusplus/Icons.h>
#include <cplusplus/Overview.h>
#include <coreplugin/actionmanager/actionmanager.h>
#include <coreplugin/actionmanager/command.h>
#include <texteditor/codeassist/genericproposalmodel.h>
#include <texteditor/codeassist/genericproposalwidget.h>
#include <texteditor/codeassist/assistinterface.h>
#include <texteditor/codeassist/iassistprocessor.h>
#include <texteditor/codeassist/iassistproposal.h>
#include <texteditor/texteditorconstants.h>
#include <utils/qtcassert.h>
using namespace CPlusPlus;
using namespace TextEditor;
namespace CppEditor {
/// Activate current item with the same shortcut that is configured for Follow Symbol Under Cursor.
/// This is limited to single-key shortcuts without modifiers.
class VirtualFunctionProposalWidget : public GenericProposalWidget
{
public:
VirtualFunctionProposalWidget(bool openInSplit)
{
const char *id = openInSplit
? TextEditor::Constants::FOLLOW_SYMBOL_UNDER_CURSOR_IN_NEXT_SPLIT
: TextEditor::Constants::FOLLOW_SYMBOL_UNDER_CURSOR;
if (Core::Command *command = Core::ActionManager::command(id))
m_sequence = command->keySequence();
}
protected:
bool eventFilter(QObject *o, QEvent *e) override
{
if (e->type() == QEvent::ShortcutOverride && m_sequence.count() == 1) {
auto ke = static_cast<const QKeyEvent*>(e);
const QKeySequence seq(ke->key());
if (seq == m_sequence) {
activateCurrentProposalItem();
e->accept();
return true;
}
}
return GenericProposalWidget::eventFilter(o, e);
}
void showProposal(const QString &prefix) override
{
GenericProposalModelPtr proposalModel = model();
if (proposalModel && proposalModel->size() == 1) {
const auto item = dynamic_cast<VirtualFunctionProposalItem *>(
proposalModel->proposalItem(0));
if (item && item->link().hasValidTarget()) {
emit proposalItemActivated(proposalModel->proposalItem(0));
deleteLater();
return;
}
}
GenericProposalWidget::showProposal(prefix);
}
private:
QKeySequence m_sequence;
};
class VirtualFunctionAssistProcessor : public IAssistProcessor
{
public:
VirtualFunctionAssistProcessor(const VirtualFunctionAssistProvider::Parameters ¶ms)
: m_params(params)
{}
IAssistProposal *immediateProposal(const AssistInterface *) override
{
QTC_ASSERT(m_params.function, return nullptr);
auto *hintItem = new VirtualFunctionProposalItem(Utils::Link());
hintItem->setText(QCoreApplication::translate("VirtualFunctionsAssistProcessor",
"collecting overrides ..."));
hintItem->setOrder(-1000);
QList<AssistProposalItemInterface *> items;
items << itemFromFunction(m_params.function);
items << hintItem;
return new VirtualFunctionProposal(m_params.cursorPosition, items, m_params.openInNextSplit);
}
IAssistProposal *perform(const AssistInterface *assistInterface) override
{
delete assistInterface;
QTC_ASSERT(m_params.function, return nullptr);
QTC_ASSERT(m_params.staticClass, return nullptr);
QTC_ASSERT(!m_params.snapshot.isEmpty(), return nullptr);
Class *functionsClass = m_finder.findMatchingClassDeclaration(m_params.function,
m_params.snapshot);
if (!functionsClass)
return nullptr;
const QList<Function *> overrides = Internal::FunctionUtils::overrides(
m_params.function, functionsClass, m_params.staticClass, m_params.snapshot);
if (overrides.isEmpty())
return nullptr;
QList<AssistProposalItemInterface *> items;
for (Function *func : overrides)
items << itemFromFunction(func);
items.first()->setOrder(1000); // Ensure top position for function of static type
return new VirtualFunctionProposal(m_params.cursorPosition, items, m_params.openInNextSplit);
}
private:
Function *maybeDefinitionFor(Function *func) const
{
if (Function *definition = m_finder.findMatchingDefinition(func, m_params.snapshot))
return definition;
return func;
}
VirtualFunctionProposalItem *itemFromFunction(Function *func) const
{
const Utils::Link link = maybeDefinitionFor(func)->toLink();
QString text = m_overview.prettyName(LookupContext::fullyQualifiedName(func));
if (func->isPureVirtual())
text += QLatin1String(" = 0");
auto *item = new VirtualFunctionProposalItem(link, m_params.openInNextSplit);
item->setText(text);
item->setIcon(Icons::iconForSymbol(func));
return item;
}
VirtualFunctionAssistProvider::Parameters m_params;
Overview m_overview;
mutable SymbolFinder m_finder;
};
VirtualFunctionAssistProvider::VirtualFunctionAssistProvider() = default;
bool VirtualFunctionAssistProvider::configure(const Parameters ¶meters)
{
m_params = parameters;
return true;
}
IAssistProvider::RunType VirtualFunctionAssistProvider::runType() const
{
return AsynchronousWithThread;
}
IAssistProcessor *VirtualFunctionAssistProvider::createProcessor(const AssistInterface *) const
{
return new VirtualFunctionAssistProcessor(m_params);
}
VirtualFunctionProposal::VirtualFunctionProposal(
int cursorPos, const QList<AssistProposalItemInterface *> &items, bool openInSplit)
: GenericProposal(cursorPos, items), m_openInSplit(openInSplit)
{
setFragile(true);
}
IAssistProposalWidget *VirtualFunctionProposal::createWidget() const
{
return new VirtualFunctionProposalWidget(m_openInSplit);
}
} // namespace CppEditor
|
