From f05f489d48a42996e4fab455328a928d203d815c Mon Sep 17 00:00:00 2001
From: Pino Toscano <pino@kde.org>
Date: Sun, 18 May 2008 18:42:27 +0000
Subject: [PATCH] add an hidden JS console output window, disabled by default
 (useful for debugging)

svn path=/trunk/KDE/kdegraphics/okular/; revision=809331
---
 core/script/kjs_console.cpp | 85 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 84 insertions(+), 1 deletion(-)

diff --git a/core/script/kjs_console.cpp b/core/script/kjs_console.cpp
index e8bb3a3fc..01a365344 100644
--- a/core/script/kjs_console.cpp
+++ b/core/script/kjs_console.cpp
@@ -22,13 +22,95 @@ using namespace Okular;
 
 static KJSPrototype *g_consoleProto;
 
+#ifdef OKULAR_JS_CONSOLE
+
+#include <qlayout.h>
+#include <qplaintextedit.h>
+
+#include <kdialog.h>
+#include <kstandardguiitem.h>
+
+K_GLOBAL_STATIC( KDialog, g_jsConsoleWindow )
+static QPlainTextEdit *g_jsConsoleLog = 0;
+
+static void createConsoleWindow()
+{
+    if ( g_jsConsoleWindow.exists() )
+        return;
+
+    g_jsConsoleWindow->setButtons( KDialog::Close | KDialog::User1 );
+    g_jsConsoleWindow->setButtonGuiItem( KDialog::User1, KStandardGuiItem::clear() );
+
+    QVBoxLayout *mainLay = new QVBoxLayout( g_jsConsoleWindow->mainWidget() );
+    mainLay->setMargin( 0 );
+    g_jsConsoleLog = new QPlainTextEdit( g_jsConsoleWindow->mainWidget() );
+    g_jsConsoleLog->setReadOnly( true );
+    mainLay->addWidget( g_jsConsoleLog );
+
+    QObject::connect( g_jsConsoleWindow, SIGNAL( closeClicked() ),
+                      g_jsConsoleWindow, SLOT( close() ) );
+    QObject::connect( g_jsConsoleWindow, SIGNAL( user1Clicked() ),
+                      g_jsConsoleLog, SLOT( clear() ) );
+}
+
+static void showConsole()
+{
+    createConsoleWindow();
+    g_jsConsoleWindow->show();
+}
+
+static void hideConsole()
+{
+    if ( !g_jsConsoleWindow.exists() )
+        return;
+
+    g_jsConsoleWindow->hide();
+}
+
+static void clearConsole()
+{
+    if ( !g_jsConsoleWindow.exists() )
+        return;
+
+    g_jsConsoleLog->clear();
+}
+
+static void outputToConsole( const QString &message )
+{
+    showConsole();
+    g_jsConsoleLog->appendPlainText( message );
+}
+
+#else /* OKULAR_JS_CONSOLE */
+
+static void showConsole()
+{
+}
+
+static void hideConsole()
+{
+}
+
+static void clearConsole()
+{
+}
+
+static void outputToConsole( const QString &cMessage )
+{
+    kDebug(OkularDebug) << "CONSOLE:" << cMessage;
+}
+
+#endif /* OKULAR_JS_CONSOLE */
+
 static KJSObject consoleClear( KJSContext *, void *, const KJSArguments & )
 {
+    clearConsole();
     return KJSUndefined();
 }
 
 static KJSObject consoleHide( KJSContext *, void *, const KJSArguments & )
 {
+    hideConsole();
     return KJSUndefined();
 }
 
@@ -36,13 +118,14 @@ static KJSObject consolePrintln( KJSContext *ctx, void *,
                                  const KJSArguments &arguments )
 {
     QString cMessage = arguments.at( 0 ).toString( ctx );
-    kDebug(OkularDebug) << "CONSOLE:" << cMessage;
+    outputToConsole( cMessage );
 
     return KJSUndefined();
 }
 
 static KJSObject consoleShow( KJSContext *, void *, const KJSArguments & )
 {
+    showConsole();
     return KJSUndefined();
 }