Small refactor

Change-Id: I2988ce1c2a73798abccf690a3ed5d4e3a92c91a2
Reviewed-on: http://codereview.qt.nokia.com/517
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Leandro T. C. Melo <leandro.melo@nokia.com>

8 files changed, 58 insertions, 32 deletions

diff --git a/src/plugins/projectexplorer/editorconfiguration.cpp b/src/plugins/projectexplorer/editorconfiguration.cpp
index 544b67c0f2..089b6936d6 100644
--- a/src/plugins/projectexplorer/editorconfiguration.cpp
+++ b/src/plugins/projectexplorer/editorconfiguration.cpp
@@ -91,9 +91,10 @@ struct EditorConfigurationPrivate
 
 EditorConfiguration::EditorConfiguration() : m_d(new EditorConfigurationPrivate)
 {
-    QList<IFallbackPreferences *> fallbacks;
-    fallbacks << TextEditorSettings::instance()->tabPreferences();
-    m_d->m_tabPreferences = new TabPreferences(fallbacks, this);
+    TextEditor::TextEditorSettings *textEditorSettings = TextEditor::TextEditorSettings::instance();
+    QList<TabPreferences *> tabFallbacks;
+    tabFallbacks << textEditorSettings->tabPreferences();
+    m_d->m_tabPreferences = new TabPreferences(tabFallbacks, this);
     m_d->m_tabPreferences->setDisplayName(tr("Project", "Settings"));
     m_d->m_tabPreferences->setId(kId);
 
diff --git a/src/plugins/texteditor/behaviorsettingspage.cpp b/src/plugins/texteditor/behaviorsettingspage.cpp
index 2c29ac3180..7ff561b280 100644
--- a/src/plugins/texteditor/behaviorsettingspage.cpp
+++ b/src/plugins/texteditor/behaviorsettingspage.cpp
@@ -38,6 +38,7 @@
 #include "extraencodingsettings.h"
 #include "ui_behaviorsettingspage.h"
 #include "tabpreferences.h"
+#include "texteditorconstants.h"
 
 #include <coreplugin/icore.h>
 #include <coreplugin/coreconstants.h>
@@ -46,8 +47,6 @@
 #include <QtCore/QSettings>
 #include <QtCore/QTextCodec>
 
-static const char *idKey = "Global";
-
 using namespace TextEditor;
 
 struct BehaviorSettingsPage::BehaviorSettingsPagePrivate
@@ -77,9 +76,7 @@ BehaviorSettingsPage::BehaviorSettingsPagePrivate::BehaviorSettingsPagePrivate
 void BehaviorSettingsPage::BehaviorSettingsPagePrivate::init()
 {
     if (const QSettings *s = Core::ICore::instance()->settings()) {
-        TabSettings ts;
-        ts.fromSettings(m_parameters.settingsPrefix, s);
-        m_tabPreferences->setSettings(ts);
+        m_tabPreferences->fromSettings(m_parameters.settingsPrefix, s);
         m_storageSettings.fromSettings(m_parameters.settingsPrefix, s);
         m_behaviorSettings.fromSettings(m_parameters.settingsPrefix, s);
         m_extraEncodingSettings.fromSettings(m_parameters.settingsPrefix, s);
@@ -93,7 +90,7 @@ BehaviorSettingsPage::BehaviorSettingsPage(const BehaviorSettingsPageParameters
 {
     m_d->m_tabPreferences = new TabPreferences(QList<IFallbackPreferences *>(), this);
     m_d->m_tabPreferences->setDisplayName(tr("Global", "Settings"));
-    m_d->m_tabPreferences->setId(idKey);
+    m_d->m_tabPreferences->setId(Constants::GLOBAL_SETTINGS_ID);
     m_d->init();
 }
 
@@ -117,7 +114,9 @@ QWidget *BehaviorSettingsPage::createPage(QWidget *parent)
     QWidget *w = new QWidget(parent);
     m_d->m_page = new Ui::BehaviorSettingsPage;
     m_d->m_page->setupUi(w);
-    m_d->m_pageTabPreferences = new TabPreferences(QList<IFallbackPreferences *>(), w);
+    m_d->m_pageTabPreferences = new TabPreferences(m_d->m_tabPreferences->fallbacks(), w);
+    m_d->m_pageTabPreferences->setSettings(m_d->m_tabPreferences->settings());
+    m_d->m_pageTabPreferences->setCurrentFallback(m_d->m_tabPreferences->currentFallback());
     m_d->m_page->behaviorWidget->setTabPreferences(m_d->m_pageTabPreferences);
 
     settingsToUI();
@@ -133,20 +132,25 @@ void BehaviorSettingsPage::apply()
     if (!m_d->m_page) // page was never shown
         return;
 
-    TabSettings newTabSettings;
     StorageSettings newStorageSettings;
     BehaviorSettings newBehaviorSettings;
     ExtraEncodingSettings newExtraEncodingSettings;
 
-    settingsFromUI(&newTabSettings, &newStorageSettings, &newBehaviorSettings,
+    settingsFromUI(&newStorageSettings, &newBehaviorSettings,
                    &newExtraEncodingSettings);
 
     QSettings *s = Core::ICore::instance()->settings();
 
-    if (newTabSettings != m_d->m_tabPreferences->settings()) {
-        m_d->m_tabPreferences->setSettings(newTabSettings);
+    if (m_d->m_tabPreferences->settings() != m_d->m_pageTabPreferences->settings()) {
+        m_d->m_tabPreferences->setSettings(m_d->m_pageTabPreferences->settings());
+        if (s)
+            m_d->m_tabPreferences->toSettings(m_d->m_parameters.settingsPrefix, s);
+    }
+
+    if (m_d->m_tabPreferences->currentFallback() != m_d->m_pageTabPreferences->currentFallback()) {
+        m_d->m_tabPreferences->setCurrentFallback(m_d->m_pageTabPreferences->currentFallback());
         if (s)
-            m_d->m_tabPreferences->settings().toSettings(m_d->m_parameters.settingsPrefix, s);
+            m_d->m_tabPreferences->toSettings(m_d->m_parameters.settingsPrefix, s);
     }
 
     if (newStorageSettings != m_d->m_storageSettings) {
@@ -179,12 +183,10 @@ void BehaviorSettingsPage::apply()
     }
 }
 
-void BehaviorSettingsPage::settingsFromUI(TabSettings *tabSettings,
-                                          StorageSettings *storageSettings,
+void BehaviorSettingsPage::settingsFromUI(StorageSettings *storageSettings,
                                           BehaviorSettings *behaviorSettings,
                                           ExtraEncodingSettings *extraEncodingSettings) const
 {
-    *tabSettings = m_d->m_pageTabPreferences->settings();
     m_d->m_page->behaviorWidget->assignedStorageSettings(storageSettings);
     m_d->m_page->behaviorWidget->assignedBehaviorSettings(behaviorSettings);
     m_d->m_page->behaviorWidget->assignedExtraEncodingSettings(extraEncodingSettings);
@@ -192,7 +194,6 @@ void BehaviorSettingsPage::settingsFromUI(TabSettings *tabSettings,
 
 void BehaviorSettingsPage::settingsToUI()
 {
-    m_d->m_pageTabPreferences->setSettings(m_d->m_tabPreferences->settings());
     m_d->m_page->behaviorWidget->setAssignedStorageSettings(m_d->m_storageSettings);
     m_d->m_page->behaviorWidget->setAssignedBehaviorSettings(m_d->m_behaviorSettings);
     m_d->m_page->behaviorWidget->setAssignedExtraEncodingSettings(m_d->m_extraEncodingSettings);
diff --git a/src/plugins/texteditor/behaviorsettingspage.h b/src/plugins/texteditor/behaviorsettingspage.h
index 0f7467178b..3c394fe28c 100644
--- a/src/plugins/texteditor/behaviorsettingspage.h
+++ b/src/plugins/texteditor/behaviorsettingspage.h
@@ -83,8 +83,7 @@ signals:
     void extraEncodingSettingsChanged(const TextEditor::ExtraEncodingSettings &);
 
 private:
-    void settingsFromUI(TabSettings *tabSettings,
-                        StorageSettings *storageSettings,
+    void settingsFromUI(StorageSettings *storageSettings,
                         BehaviorSettings *behaviorSettings,
                         ExtraEncodingSettings *extraEncodingSettings) const;
     void settingsToUI();
diff --git a/src/plugins/texteditor/fallbackselectorwidget.h b/src/plugins/texteditor/fallbackselectorwidget.h
index 21e141976a..795112b660 100644
--- a/src/plugins/texteditor/fallbackselectorwidget.h
+++ b/src/plugins/texteditor/fallbackselectorwidget.h
@@ -24,7 +24,7 @@ class TEXTEDITOR_EXPORT FallbackSelectorWidget : public QWidget
 public:
     explicit FallbackSelectorWidget(QWidget *parent = 0);
 
-    void setFallbackPreferences(TextEditor::IFallbackPreferences *tabPreferences);
+    void setFallbackPreferences(TextEditor::IFallbackPreferences *fallbackPreferences);
     QString searchKeywords() const;
 
     void setFallbacksVisible(bool on);
diff --git a/src/plugins/texteditor/tabpreferences.cpp b/src/plugins/texteditor/tabpreferences.cpp
index a471830e4e..bb3d439def 100644
--- a/src/plugins/texteditor/tabpreferences.cpp
+++ b/src/plugins/texteditor/tabpreferences.cpp
@@ -1,5 +1,6 @@
 #include "tabpreferences.h"
 #include "tabsettings.h"
+#include "texteditorconstants.h"
 
 using namespace TextEditor;
 
@@ -7,6 +8,15 @@ static const char *settingsSuffixKey = "TabPreferences";
 
 static const char *currentFallbackKey = "CurrentFallback";
 
+static QList<IFallbackPreferences *> toFallbackList(
+    const QList<TabPreferences *> &fallbacks)
+{
+    QList<IFallbackPreferences *> fallbackList;
+    for (int i = 0; i < fallbacks.count(); i++)
+        fallbackList << fallbacks.at(i);
+    return fallbackList;
+}
+
 TabPreferences::TabPreferences(
     const QList<IFallbackPreferences *> &fallbacks, QObject *parent)
     : IFallbackPreferences(fallbacks, parent)
@@ -15,6 +25,14 @@ TabPreferences::TabPreferences(
             this, SLOT(slotCurrentValueChanged(QVariant)));
 }
 
+TabPreferences::TabPreferences(
+    const QList<TabPreferences *> &fallbacks, QObject *parent)
+    : IFallbackPreferences(toFallbackList(fallbacks), parent)
+{
+    connect(this, SIGNAL(currentValueChanged(QVariant)),
+            this, SLOT(slotCurrentValueChanged(QVariant)));
+}
+
 QVariant TabPreferences::value() const
 {
     QVariant v;
@@ -83,6 +101,6 @@ void TabPreferences::toMap(const QString &prefix, QVariantMap *map) const
 void TabPreferences::fromMap(const QString &prefix, const QVariantMap &map)
 {
     m_data.fromMap(prefix, map);
-    setCurrentFallback(map.value(prefix + QLatin1String(currentFallbackKey), QLatin1String("Global")).toString());
+    setCurrentFallback(map.value(prefix + QLatin1String(currentFallbackKey), Constants::GLOBAL_SETTINGS_ID).toString());
 }
 
diff --git a/src/plugins/texteditor/tabpreferences.h b/src/plugins/texteditor/tabpreferences.h
index 42b63e2cbf..37a2b7b4c4 100644
--- a/src/plugins/texteditor/tabpreferences.h
+++ b/src/plugins/texteditor/tabpreferences.h
@@ -14,12 +14,16 @@ public:
         const QList<IFallbackPreferences *> &fallbacks,
         QObject *parentObject = 0);
 
+    explicit TabPreferences(
+        const QList<TabPreferences *> &fallbacks,
+        QObject *parentObject = 0);
+
     virtual QVariant value() const;
     virtual void setValue(const QVariant &);
 
     TabSettings settings() const;
 
-    // tracks parent hierarchy until currentParentSettings is null
+    // tracks parent fallbacks until null and extracts settings from it
     TabSettings currentSettings() const;
 
     virtual void toMap(const QString &prefix, QVariantMap *map) const;
diff --git a/src/plugins/texteditor/tabpreferenceswidget.cpp b/src/plugins/texteditor/tabpreferenceswidget.cpp
index a18edbc2f5..32ed8e1069 100644
--- a/src/plugins/texteditor/tabpreferenceswidget.cpp
+++ b/src/plugins/texteditor/tabpreferenceswidget.cpp
@@ -27,12 +27,13 @@ void TabPreferencesWidget::setTabPreferences(TabPreferences *tabPreferences)
 
     // cleanup old
     if (m_tabPreferences) {
-        disconnect(m_tabPreferences, SIGNAL(settingsChanged(TabSettings)),
-                m_ui->tabSettingsWidget, SLOT(setSettings(TabSettings)));
-        disconnect(m_tabPreferences, SIGNAL(currentFallbackChanged(IFallbackPreferences*)),
-                this, SLOT(slotCurrentFallbackChanged(IFallbackPreferences*)));
-        disconnect(m_ui->tabSettingsWidget, SIGNAL(settingsChanged(TabSettings)),
-                m_tabPreferences, SLOT(setSettings(TabSettings)));
+        disconnect(m_tabPreferences, SIGNAL(currentSettingsChanged(TextEditor::TabSettings)),
+                m_ui->tabSettingsWidget, SLOT(setSettings(TextEditor::TabSettings)));
+        disconnect(m_tabPreferences, SIGNAL(currentFallbackChanged(TextEditor::IFallbackPreferences*)),
+                this, SLOT(slotCurrentFallbackChanged(TextEditor::IFallbackPreferences*)));
+        disconnect(m_ui->tabSettingsWidget, SIGNAL(settingsChanged(TextEditor::TabSettings)),
+                m_tabPreferences, SLOT(setSettings(TextEditor::TabSettings)));
+
         m_ui->tabSettingsWidget->setEnabled(true);
     }
     m_tabPreferences = tabPreferences;
@@ -41,14 +42,14 @@ void TabPreferencesWidget::setTabPreferences(TabPreferences *tabPreferences)
     if (m_tabPreferences) {
         slotCurrentFallbackChanged(m_tabPreferences->currentFallback());
 
-        connect(m_tabPreferences, SIGNAL(settingsChanged(TextEditor::TabSettings)),
+        connect(m_tabPreferences, SIGNAL(currentSettingsChanged(TextEditor::TabSettings)),
                 m_ui->tabSettingsWidget, SLOT(setSettings(TextEditor::TabSettings)));
         connect(m_tabPreferences, SIGNAL(currentFallbackChanged(TextEditor::IFallbackPreferences*)),
                 this, SLOT(slotCurrentFallbackChanged(TextEditor::IFallbackPreferences*)));
         connect(m_ui->tabSettingsWidget, SIGNAL(settingsChanged(TextEditor::TabSettings)),
                 m_tabPreferences, SLOT(setSettings(TextEditor::TabSettings)));
 
-        m_ui->tabSettingsWidget->setSettings(m_tabPreferences->settings());
+        m_ui->tabSettingsWidget->setSettings(m_tabPreferences->currentSettings());
     }
 }
 
diff --git a/src/plugins/texteditor/texteditorconstants.h b/src/plugins/texteditor/texteditorconstants.h
index 4a8c4592b8..b355235dec 100644
--- a/src/plugins/texteditor/texteditorconstants.h
+++ b/src/plugins/texteditor/texteditorconstants.h
@@ -148,6 +148,8 @@ const char * const TEXT_EDITOR_SNIPPETS_SETTINGS = "F.SnippetsSettings";
 const char * const SNIPPET_EDITOR_ID     = "TextEditor.SnippetEditor";
 const char * const TEXT_SNIPPET_GROUP_ID = "Text";
 
+const char * const GLOBAL_SETTINGS_ID    = "Global";
+
 } // namespace Constants
 } // namespace TextEditor