TextEditor: Make automatic completion timeout configurable

Allow to configure the timeout in the range from 0 to 500ms.

Task-number: QTCREATORBUG-13393
Change-Id: I3e421109db919ab0dd5d63b8cbb9339fce132dbb
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@theqtcompany.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@theqtcompany.com>

src/plugins/cpptools/completionsettingspage.cpp

@@ -64,6 +64,10 @@ QWidget *CompletionSettingsPage::widget()
         m_page = new Ui::CompletionSettingsPage;
         m_page->setupUi(m_widget);
 
+        connect(m_page->completionTrigger,
+                static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
+                this, &CompletionSettingsPage::onCompletionTriggerChanged);
+
         const TextEditor::CompletionSettings &settings =
                 TextEditor::TextEditorSettings::completionSettings();
 
@@ -95,6 +99,7 @@ QWidget *CompletionSettingsPage::widget()
 
         m_page->caseSensitivity->setCurrentIndex(caseSensitivityIndex);
         m_page->completionTrigger->setCurrentIndex(completionTriggerIndex);
+        m_page->automaticProposalTimeoutSpinBox->setValue(settings.m_automaticProposalTimeoutInMs);
         m_page->autoInsertBrackets->setChecked(settings.m_autoInsertBrackets);
         m_page->surroundSelectedText->setChecked(settings.m_surroundingAutoBrackets);
         m_page->partiallyComplete->setChecked(settings.m_partiallyComplete);
@@ -115,6 +120,7 @@ void CompletionSettingsPage::apply()
     TextEditor::CompletionSettings settings;
     settings.m_caseSensitivity = caseSensitivity();
     settings.m_completionTrigger = completionTrigger();
+    settings.m_automaticProposalTimeoutInMs = m_page->automaticProposalTimeoutSpinBox->value();
     settings.m_autoInsertBrackets = m_page->autoInsertBrackets->isChecked();
     settings.m_surroundingAutoBrackets = m_page->surroundSelectedText->isChecked();
     settings.m_partiallyComplete = m_page->partiallyComplete->isChecked();
@@ -158,6 +164,13 @@ TextEditor::CompletionTrigger CompletionSettingsPage::completionTrigger() const
     }
 }
 
+void CompletionSettingsPage::onCompletionTriggerChanged()
+{
+    const bool enableTimeoutWidgets = completionTrigger() == TextEditor::AutomaticCompletion;
+    m_page->automaticProposalTimeoutLabel->setEnabled(enableTimeoutWidgets);
+    m_page->automaticProposalTimeoutSpinBox->setEnabled(enableTimeoutWidgets);
+}
+
 void CompletionSettingsPage::finish()
 {
     delete m_widget;

src/plugins/cpptools/completionsettingspage.h

@@ -66,6 +66,8 @@ private:
     TextEditor::CaseSensitivity caseSensitivity() const;
     TextEditor::CompletionTrigger completionTrigger() const;
 
+    void onCompletionTriggerChanged();
+
     bool requireCommentsSettingsUpdate() const;
 
     Ui::CompletionSettingsPage *m_page;

src/plugins/cpptools/completionsettingspage.ui

@@ -17,10 +17,10 @@
       <string>Behavior</string>
      </property>
      <layout class="QGridLayout" name="gridLayout">
-      <item row="4" column="0">
+      <item row="5" column="0">
-       <layout class="QHBoxLayout" name="horizontalLayout">
+       <layout class="QHBoxLayout" name="horizontalLayout_2">
         <item>
-         <spacer name="horizontalSpacer_2">
+         <spacer name="horizontalSpacer_4">
           <property name="orientation">
            <enum>Qt::Horizontal</enum>
           </property>
@@ -36,53 +36,17 @@
          </spacer>
         </item>
         <item>
-         <widget class="QCheckBox" name="surroundSelectedText">
+         <widget class="QCheckBox" name="spaceAfterFunctionName">
-          <property name="toolTip">
+          <property name="enabled">
-           <string>When typing a matching character and there is a text selection, instead of removing the selection, surrounds it with the corresponding characters.</string>
+           <bool>true</bool>
           </property>
           <property name="text">
-           <string>Surround &amp;text selections</string>
+           <string>Insert &amp;space after function name</string>
-          </property>
-          <property name="checked">
-           <bool>true</bool>
           </property>
          </widget>
         </item>
        </layout>
       </item>
-      <item row="0" column="2" colspan="2">
-       <spacer name="horizontalSpacer">
-        <property name="orientation">
-         <enum>Qt::Horizontal</enum>
-        </property>
-        <property name="sizeHint" stdset="0">
-         <size>
-          <width>70</width>
-          <height>24</height>
-         </size>
-        </property>
-       </spacer>
-      </item>
-      <item row="1" column="0">
-       <widget class="QLabel" name="completionTriggerLabel">
-        <property name="text">
-         <string>Activate completion:</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="3">
-       <spacer name="horizontalSpacer_3">
-        <property name="orientation">
-         <enum>Qt::Horizontal</enum>
-        </property>
-        <property name="sizeHint" stdset="0">
-         <size>
-          <width>40</width>
-          <height>24</height>
-         </size>
-        </property>
-       </spacer>
-      </item>
       <item row="0" column="0">
        <widget class="QLabel" name="caseSensitivityLabel">
         <property name="text">
@@ -118,6 +82,39 @@
         </item>
        </widget>
       </item>
+      <item row="4" column="0">
+       <layout class="QHBoxLayout" name="horizontalLayout">
+        <item>
+         <spacer name="horizontalSpacer_2">
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <property name="sizeType">
+           <enum>QSizePolicy::Fixed</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>30</width>
+            <height>20</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+        <item>
+         <widget class="QCheckBox" name="surroundSelectedText">
+          <property name="toolTip">
+           <string>When typing a matching character and there is a text selection, instead of removing the selection, surrounds it with the corresponding characters.</string>
+          </property>
+          <property name="text">
+           <string>Surround &amp;text selections</string>
+          </property>
+          <property name="checked">
+           <bool>true</bool>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
       <item row="6" column="0">
        <widget class="QCheckBox" name="autoSplitStrings">
         <property name="toolTip">
@@ -130,6 +127,32 @@ In addition, Shift+Enter inserts an escape character at the cursor position and
         </property>
        </widget>
       </item>
+      <item row="1" column="5">
+       <spacer name="horizontalSpacer_3">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>40</width>
+          <height>24</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item row="0" column="2" colspan="4">
+       <spacer name="horizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>70</width>
+          <height>24</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
       <item row="1" column="1" colspan="2">
        <widget class="QComboBox" name="completionTrigger">
         <item>
@@ -149,6 +172,13 @@ In addition, Shift+Enter inserts an escape character at the cursor position and
         </item>
        </widget>
       </item>
+      <item row="1" column="3">
+       <widget class="QLabel" name="automaticProposalTimeoutLabel">
+        <property name="text">
+         <string>Timeout in ms:</string>
+        </property>
+       </widget>
+      </item>
       <item row="2" column="0">
        <widget class="QCheckBox" name="partiallyComplete">
         <property name="toolTip">
@@ -162,6 +192,13 @@ In addition, Shift+Enter inserts an escape character at the cursor position and
         </property>
        </widget>
       </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="completionTriggerLabel">
+        <property name="text">
+         <string>Activate completion:</string>
+        </property>
+       </widget>
+      </item>
       <item row="3" column="0" colspan="2">
        <widget class="QCheckBox" name="autoInsertBrackets">
         <property name="toolTip">
@@ -175,37 +212,20 @@ In addition, Shift+Enter inserts an escape character at the cursor position and
         </property>
        </widget>
       </item>
-      <item row="5" column="0">
+      <item row="1" column="4">
-       <layout class="QHBoxLayout" name="horizontalLayout_2">
+       <widget class="QSpinBox" name="automaticProposalTimeoutSpinBox">
-        <item>
+        <property name="maximum">
-         <spacer name="horizontalSpacer_4">
+         <number>500</number>
-          <property name="orientation">
-           <enum>Qt::Horizontal</enum>
         </property>
-          <property name="sizeType">
+        <property name="singleStep">
-           <enum>QSizePolicy::Fixed</enum>
+         <number>50</number>
         </property>
-          <property name="sizeHint" stdset="0">
+        <property name="value">
-           <size>
+         <number>400</number>
-            <width>30</width>
-            <height>20</height>
-           </size>
-          </property>
-         </spacer>
-        </item>
-        <item>
-         <widget class="QCheckBox" name="spaceAfterFunctionName">
-          <property name="enabled">
-           <bool>true</bool>
-          </property>
-          <property name="text">
-           <string>Insert &amp;space after function name</string>
         </property>
        </widget>
       </item>
      </layout>
-      </item>
-     </layout>
     </widget>
    </item>
    <item>

src/plugins/texteditor/codeassist/codeassistant.cpp

@@ -82,7 +82,7 @@ public:
     void startAutomaticProposalTimer();
     void automaticProposalTimeout();
     void clearAbortedPosition();
-    void updateCompletionSettings(const TextEditor::CompletionSettings &settings);
+    void updateFromCompletionSettings(const TextEditor::CompletionSettings &settings);
 
     virtual bool eventFilter(QObject *o, QEvent *e);
 
@@ -115,8 +115,6 @@ private:
 // --------------------
 const QChar CodeAssistantPrivate::m_null;
 
-static const int AutomaticProposalTimerInterval = 400;
-
 CodeAssistantPrivate::CodeAssistantPrivate(CodeAssistant *assistant)
     : q(assistant)
     , m_editorWidget(0)
@@ -125,17 +123,14 @@ CodeAssistantPrivate::CodeAssistantPrivate(CodeAssistant *assistant)
     , m_assistKind(TextEditor::Completion)
     , m_proposalWidget(0)
     , m_receivedContentWhileWaiting(false)
-    , m_settings(TextEditorSettings::completionSettings())
     , m_abortedBasePosition(-1)
 {
     m_automaticProposalTimer.setSingleShot(true);
-    m_automaticProposalTimer.setInterval(AutomaticProposalTimerInterval);
-
     connect(&m_automaticProposalTimer, &QTimer::timeout,
             this, &CodeAssistantPrivate::automaticProposalTimeout);
 
     connect(TextEditorSettings::instance(), &TextEditorSettings::completionSettingsChanged,
-            this, &CodeAssistantPrivate::updateCompletionSettings);
+            this, &CodeAssistantPrivate::updateFromCompletionSettings);
 
     connect(Core::EditorManager::instance(), &Core::EditorManager::currentEditorChanged,
             this, &CodeAssistantPrivate::clearAbortedPosition);
@@ -456,9 +451,11 @@ void CodeAssistantPrivate::stopAutomaticProposalTimer()
         m_automaticProposalTimer.stop();
 }
 
-void CodeAssistantPrivate::updateCompletionSettings(const TextEditor::CompletionSettings &settings)
+void CodeAssistantPrivate::updateFromCompletionSettings(
+        const TextEditor::CompletionSettings &settings)
 {
     m_settings = settings;
+    m_automaticProposalTimer.setInterval(m_settings.m_automaticProposalTimeoutInMs);
 }
 
 void CodeAssistantPrivate::explicitlyAborted()
@@ -520,6 +517,11 @@ void CodeAssistant::configure(TextEditorWidget *editorWidget)
     d->configure(editorWidget);
 }
 
+void CodeAssistant::updateFromCompletionSettings(const CompletionSettings &settings)
+{
+    d->updateFromCompletionSettings(settings);
+}
+
 void CodeAssistant::process()
 {
     d->process();

src/plugins/texteditor/codeassist/codeassistant.h

@@ -40,6 +40,7 @@
 namespace TextEditor {
 
 class CodeAssistantPrivate;
+class CompletionSettings;
 class IAssistProvider;
 class TextEditorWidget;
 
@@ -52,6 +53,7 @@ public:
     ~CodeAssistant();
 
     void configure(TextEditorWidget *editorWidget);
+    void updateFromCompletionSettings(const TextEditor::CompletionSettings &settings);
 
     void process();
     void notifyChange();

src/plugins/texteditor/completionsettings.cpp

@@ -35,6 +35,7 @@
 static const char groupPostfix[] = "Completion";
 static const char caseSensitivityKey[] = "CaseSensitivity";
 static const char completionTriggerKey[] = "CompletionTrigger";
+static const char automaticProposalTimeoutKey[] = "AutomaticProposalTimeout";
 static const char autoInsertBracesKey[] = "AutoInsertBraces";
 static const char surroundingAutoBracketsKey[] = "SurroundingAutoBrackets";
 static const char partiallyCompleteKey[] = "PartiallyComplete";
@@ -46,6 +47,7 @@ using namespace TextEditor;
 CompletionSettings::CompletionSettings()
     : m_caseSensitivity(CaseInsensitive)
     , m_completionTrigger(AutomaticCompletion)
+    , m_automaticProposalTimeoutInMs(400)
     , m_autoInsertBrackets(true)
     , m_surroundingAutoBrackets(true)
     , m_partiallyComplete(true)
@@ -63,6 +65,7 @@ void CompletionSettings::toSettings(const QString &category, QSettings *s) const
     s->beginGroup(group);
     s->setValue(QLatin1String(caseSensitivityKey), (int) m_caseSensitivity);
     s->setValue(QLatin1String(completionTriggerKey), (int) m_completionTrigger);
+    s->setValue(QLatin1String(automaticProposalTimeoutKey), m_automaticProposalTimeoutInMs);
     s->setValue(QLatin1String(autoInsertBracesKey), m_autoInsertBrackets);
     s->setValue(QLatin1String(surroundingAutoBracketsKey), m_surroundingAutoBrackets);
     s->setValue(QLatin1String(partiallyCompleteKey), m_partiallyComplete);
@@ -82,6 +85,7 @@ void CompletionSettings::fromSettings(const QString &category, const QSettings *
 
     m_caseSensitivity = (CaseSensitivity) s->value(group + QLatin1String(caseSensitivityKey), m_caseSensitivity).toInt();
     m_completionTrigger = (CompletionTrigger) s->value(group + QLatin1String(completionTriggerKey), m_completionTrigger).toInt();
+    m_automaticProposalTimeoutInMs = s->value(group + QLatin1String(automaticProposalTimeoutKey), m_automaticProposalTimeoutInMs).toInt();
     m_autoInsertBrackets = s->value(group + QLatin1String(autoInsertBracesKey), m_autoInsertBrackets).toBool();
     m_surroundingAutoBrackets = s->value(group + QLatin1String(surroundingAutoBracketsKey), m_surroundingAutoBrackets).toBool();
     m_partiallyComplete = s->value(group + QLatin1String(partiallyCompleteKey), m_partiallyComplete).toBool();
@@ -93,6 +97,7 @@ bool CompletionSettings::equals(const CompletionSettings &cs) const
 {
     return m_caseSensitivity == cs.m_caseSensitivity
         && m_completionTrigger == cs.m_completionTrigger
+        && m_automaticProposalTimeoutInMs == cs.m_automaticProposalTimeoutInMs
         && m_autoInsertBrackets == cs.m_autoInsertBrackets
         && m_surroundingAutoBrackets == cs.m_surroundingAutoBrackets
         && m_partiallyComplete == cs.m_partiallyComplete

src/plugins/texteditor/completionsettings.h

@@ -66,6 +66,7 @@ public:
 
     CaseSensitivity m_caseSensitivity;
     CompletionTrigger m_completionTrigger;
+    int m_automaticProposalTimeoutInMs;
     bool m_autoInsertBrackets;
     bool m_surroundingAutoBrackets;
     bool m_partiallyComplete;

src/plugins/texteditor/texteditor.cpp

@@ -6210,6 +6210,7 @@ void TextEditorWidget::setCompletionSettings(const CompletionSettings &completio
     d->m_autoCompleter->setAutoParenthesesEnabled(completionSettings.m_autoInsertBrackets);
     d->m_autoCompleter->setSurroundWithEnabled(completionSettings.m_autoInsertBrackets
                                                && completionSettings.m_surroundingAutoBrackets);
+    d->m_codeAssistant.updateFromCompletionSettings(completionSettings);
 }
 
 void TextEditorWidget::setExtraEncodingSettings(const ExtraEncodingSettings &extraEncodingSettings)