Start trying to get stylesheet validation into the qss editor.

Not quite working yet - still not picking up on the error message from Qt itself from the new lthemeengine-sstest process.

6 files changed, 108 insertions, 3 deletions

diff --git a/src-qt5/core/lumina-theme-engine/lumina-theme-engine.pro b/src-qt5/core/lumina-theme-engine/lumina-theme-engine.pro
index e1023752..1e8b2ca4 100644
--- a/src-qt5/core/lumina-theme-engine/lumina-theme-engine.pro
+++ b/src-qt5/core/lumina-theme-engine/lumina-theme-engine.pro
@@ -3,7 +3,8 @@ include(../../OS-detect.pri)
 TEMPLATE = subdirs
 SUBDIRS += src/lthemeengine-qtplugin \
 		src/lthemeengine-style \
-		src/lthemeengine
+		src/lthemeengine \
+		src/lthemeengine-sstest
 
 colors.files = colors/*.conf
 colors.path = $${L_SHAREDIR}/lthemeengine/colors
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine-sstest/lthemeengine-sstest.pro b/src-qt5/core/lumina-theme-engine/src/lthemeengine-sstest/lthemeengine-sstest.pro
new file mode 100644
index 00000000..fadc6fcb
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine-sstest/lthemeengine-sstest.pro
@@ -0,0 +1,11 @@
+include(../../lthemeengine.pri)
+TEMPLATE = app
+QT *= widgets
+
+SOURCES += \
+    main.cpp
+
+TARGET = lthemeengine-sstest
+target.path = $${L_BINDIR}
+
+INSTALLS += target
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine-sstest/main.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine-sstest/main.cpp
new file mode 100644
index 00000000..bdab0a30
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine-sstest/main.cpp
@@ -0,0 +1,18 @@
+#include <QApplication>
+//#include <QDebug>
+#include <QWidget>
+
+#include <LUtils.h>
+
+int main(int argc, char **argv){
+  if(argc<2){ return 1; } //error
+  unsetenv("QT_QPA_PLATFORMTHEME"); //Make sure we are not testing anything related to the current theme engine
+  QString stylesheet = LUtils::readFile(argv[1]).join("\n");
+  //qDebug() << "Found Stylesheet:" << stylesheet;
+  QApplication app(argc, argv);
+  app.setStyleSheet(stylesheet);
+  //qDebug() << " Using Stylesheet:" << app.styleSheet();
+  QWidget tmp(0,Qt::SplashScreen | Qt::BypassWindowManagerHint);
+  tmp.show(); //needed to actually run the parser on the stylesheet (unused/unchecked otherwise)
+  return 0;
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.cpp
index ac891a80..56289931 100644
--- a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.cpp
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.cpp
@@ -4,6 +4,12 @@
 #include "qsseditordialog.h"
 #include "ui_qsseditordialog.h"
 
+#include <QTemporaryFile>
+#include <QTextStream>
+
+#include <LuminaXDG.h>
+#include <LUtils.h>
+
 QSSEditorDialog::QSSEditorDialog(const QString &filePath, QWidget *parent) : QDialog(parent), m_ui(new Ui::QSSEditorDialog){
   m_ui->setupUi(this);
   m_filePath = filePath;
@@ -37,6 +43,11 @@ QSSEditorDialog::QSSEditorDialog(const QString &filePath, QWidget *parent) : QDi
   for(int i=0; i<colors.length(); i++){ colorMenu->addAction( colors[i].section("::::",0,0) )->setWhatsThis(colors[i].section("::::",1,1) ); }
   m_ui->tool_color->setMenu(colorMenu);
   connect(colorMenu, SIGNAL(triggered(QAction*)), this, SLOT(colorPicked(QAction*)) );
+  validateTimer = new QTimer(this);
+    validateTimer->setInterval(500); //1/2 second after finish typing
+    validateTimer->setSingleShot(true);
+    connect(validateTimer, SIGNAL(timeout()), this, SLOT(validateStyleSheet()) );
+  connect(m_ui->textEdit, SIGNAL(textChanged()), validateTimer, SLOT(start()) );
 }
 
 QSSEditorDialog::~QSSEditorDialog(){
@@ -69,3 +80,31 @@ void QSSEditorDialog::colorPicked(QAction* act){
   if(id.isEmpty()){ return; }
   m_ui->textEdit->insertPlainText( QString("palette(%1)").arg(id) );
 }
+
+bool QSSEditorDialog::isStyleSheetValid(const QString &styleSheet){
+  QTemporaryFile tempfile;
+  if(tempfile.open()){
+    QTextStream out(&tempfile);
+    out << styleSheet;
+    out.flush();
+    tempfile.close();
+  }
+  QStringList log = LUtils::getCmdOutput("lthemeengine-sstest", QStringList() << tempfile.fileName());
+  qDebug() << "Got Validation Log:" << log;
+  return log.join("").simplified().isEmpty();
+}
+
+void QSSEditorDialog::validateStyleSheet(){
+  qDebug() << "Validating StyleSheet:";
+  bool ok = isStyleSheetValid(m_ui->textEdit->toPlainText());
+
+  //Now update the button/label as needed
+  int sz = this->fontMetrics().height();
+  if(ok){
+    m_ui->label_status_icon->setPixmap(LXDG::findIcon("dialog-ok","").pixmap(sz,sz) );
+    m_ui->label_status_icon->setToolTip(tr("Valid StyleSheet"));
+  }else{
+    m_ui->label_status_icon->setPixmap(LXDG::findIcon("dialog-cancel","").pixmap(sz,sz) );
+    m_ui->label_status_icon->setToolTip(tr("Invalid StyleSheet"));
+  }
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.h
index 114611fe..f51434e9 100644
--- a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.h
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.h
@@ -5,6 +5,7 @@
 #include <QString>
 #include <QMenu>
 #include <QAction>
+#include <QTimer>
 
 namespace Ui {
 class QSSEditorDialog;
@@ -23,6 +24,8 @@ public:
 private slots:
     void on_buttonBox_clicked(QAbstractButton *button);
     void colorPicked(QAction*);
+    bool isStyleSheetValid(const QString&);
+    void validateStyleSheet();
 
 private:
     void save();
@@ -30,6 +33,7 @@ private:
     Ui::QSSEditorDialog *m_ui;
     QString m_filePath;
     QMenu *colorMenu;
+    QTimer *validateTimer;
 
 };
 
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.ui b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.ui
index f75a21c6..68a14fb1 100644
--- a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.ui
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>643</width>
-    <height>499</height>
+    <width>808</width>
+    <height>512</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -53,6 +53,38 @@
       </widget>
      </item>
      <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QLabel" name="label_status_icon">
+       <property name="minimumSize">
+        <size>
+         <width>16</width>
+         <height>16</height>
+        </size>
+       </property>
+       <property name="text">
+        <string notr="true"/>
+       </property>
+       <property name="scaledContents">
+        <bool>false</bool>
+       </property>
+       <property name="alignment">
+        <set>Qt::AlignCenter</set>
+       </property>
+      </widget>
+     </item>
+     <item>
       <widget class="QDialogButtonBox" name="buttonBox">
        <property name="orientation">
         <enum>Qt::Horizontal</enum>