From b6134440bc9501ac9df8ad61d5ea7cdbc8a0d147 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ole-Andr=C3=A9=20Rodlie?= <ole.andre.rodlie@gmail.com>
Date: Fri, 18 May 2018 03:11:24 +0200
Subject: [PATCH] fix fallback icon theme

---
 fm/src/common.h           | 30 ++++++++++++++++++++++++++++++
 fm/src/mainwindow.cpp     |  9 ++++++++-
 fm/src/settingsdialog.cpp | 22 ++++++++++++++--------
 fm/src/settingsdialog.h   |  2 +-
 4 files changed, 53 insertions(+), 10 deletions(-)

diff --git a/fm/src/common.h b/fm/src/common.h
index 989ee41..ca58eda 100644
--- a/fm/src/common.h
+++ b/fm/src/common.h
@@ -12,6 +12,7 @@
 #include <QTextStream>
 #include <QMap>
 #include <QMapIterator>
+#include <QDirIterator>
 
 #define FM_MAJOR 6
 
@@ -268,6 +269,35 @@ class Common
         }
         return result;
     }
+    static QStringList getIconThemes()
+    {
+        QStringList result;
+        for (int i=0;i<iconLocations().size();++i) {
+            QDirIterator it(iconLocations().at(i), QDir::Dirs | QDir::NoDotAndDotDot);
+            while (it.hasNext()) {
+                it.next();
+                //qDebug() << it.fileName() << it.filePath();
+                if (QFile::exists(it.filePath()+"/index.theme")) { result.append(it.fileName()); }
+            }
+        }
+        return result;
+    }
+    static bool removeFileCache()
+    {
+        QFile cache(QString("%1/file.cache").arg(Common::configDir()));
+        if (cache.exists()) {
+            return cache.remove();
+        }
+        return false;
+    }
+    static bool removeFolderCache()
+    {
+        QFile cache(QString("%1/folder.cache").arg(Common::configDir()));
+        if (cache.exists()) {
+            return cache.remove();
+        }
+        return false;
+    }
 };
 
 #endif // COMMON_H
diff --git a/fm/src/mainwindow.cpp b/fm/src/mainwindow.cpp
index 14c97c3..40362c8 100644
--- a/fm/src/mainwindow.cpp
+++ b/fm/src/mainwindow.cpp
@@ -71,8 +71,15 @@ MainWindow::MainWindow()
 
     settings = new QSettings();
 
+    if (settings->value("clearCache").toBool()) {
+        qDebug() << "clear cache";
+        Common::removeFileCache();
+        Common::removeFolderCache();
+        settings->setValue("clearCache", false);
+    }
+
     QString temp = QIcon::themeName();
-    if (temp.isEmpty()) { temp = settings->value("fallbackTheme").toString(); }
+    if (temp.isEmpty()  || temp == "hicolor") { temp = settings->value("fallbackTheme").toString(); }
     if(temp.isEmpty() || temp == "hicolor") {
         if(QFile::exists(QDir::homePath() + "/" + ".gtkrc-2.0")) { // try gtk-2.0
             QSettings gtkFile(QDir::homePath() + "/.gtkrc-2.0",QSettings::IniFormat,this);
diff --git a/fm/src/settingsdialog.cpp b/fm/src/settingsdialog.cpp
index 0b261e7..0c64722 100644
--- a/fm/src/settingsdialog.cpp
+++ b/fm/src/settingsdialog.cpp
@@ -105,8 +105,8 @@ QWidget *SettingsDialog::createGeneralSettings() {
   checkThumbs = new QCheckBox(grpAppear);
   checkHidden = new QCheckBox(grpAppear);
   checkTabs = new QCheckBox(grpAppear);
-  //cmbIconTheme = new QComboBox(grpAppear);
-  //layoutAppear->addRow(tr("Icon theme:"), cmbIconTheme);
+  cmbIconTheme = new QComboBox(grpAppear);
+  layoutAppear->addRow(tr("Fallback Icon theme:"), cmbIconTheme);
   layoutAppear->addRow(tr("Show thumbnails: "), checkThumbs);
   layoutAppear->addRow(tr("Show hidden files: "), checkHidden);
   layoutAppear->addRow(tr("Tabs on top: "), checkTabs);
@@ -518,15 +518,16 @@ void SettingsDialog::readSettings() {
   mimeUtilsPtr->setDefaultsFileName(cmbDefaultMimeApps->currentText());
 
   // Load icon themes
-  /*QString currentTheme = settingsPtr->value("forceTheme").toString();
-  QDirIterator it("/usr/share/icons", QDir::Dirs | QDir::NoDotAndDotDot);
+  QString currentTheme = settingsPtr->value("fallbackTheme").toString();
+  //QDirIterator it("/usr/share/icons", QDir::Dirs | QDir::NoDotAndDotDot);
   QStringList iconThemes;
-  while (it.hasNext()) {
+  iconThemes << Common::getIconThemes();
+  /*while (it.hasNext()) {
     it.next();
     iconThemes.append(it.fileName());
-  }
+  }*/
   cmbIconTheme->addItems(iconThemes);
-  cmbIconTheme->setCurrentIndex(iconThemes.indexOf(currentTheme));*/
+  cmbIconTheme->setCurrentIndex(iconThemes.indexOf(currentTheme));
 
   // Read custom actions
   checkOutput->setChecked(settingsPtr->value("showActionOutput", true).toBool());
@@ -733,7 +734,12 @@ bool SettingsDialog::saveSettings() {
   settingsPtr->setValue("hiddenMode", checkHidden->isChecked());
   settingsPtr->setValue("confirmDelete", checkDelete->isChecked());
   //settingsPtr->setValue("term", editTerm->text());
-  //settingsPtr->setValue("forceTheme", cmbIconTheme->currentText());
+  if (cmbIconTheme->currentText() != settingsPtr->value("fallbackTheme").toString()) {
+      //QIcon::setThemeName(cmbIconTheme->currentText());
+      settingsPtr->setValue("clearCache", true);
+      QMessageBox::warning(this, tr("Restart to apply settings"), tr("You must restart to apply theme settings"));
+  }
+  settingsPtr->setValue("fallbackTheme", cmbIconTheme->currentText());
   settingsPtr->setValue("defMimeAppsFile", cmbDefaultMimeApps->currentText());
 
   // Custom actions
diff --git a/fm/src/settingsdialog.h b/fm/src/settingsdialog.h
index d7f1d97..dec9a58 100644
--- a/fm/src/settingsdialog.h
+++ b/fm/src/settingsdialog.h
@@ -63,7 +63,7 @@ protected slots:
   QCheckBox* checkTabs;
   QCheckBox* checkDelete;
   //QLineEdit* editTerm;
-  //QComboBox* cmbIconTheme;
+  QComboBox* cmbIconTheme;
   QComboBox* cmbDefaultMimeApps;
 
   QTreeWidget *actionsWidget;