lokdialog: Support for rendering floating window dialog widgets

Now gtktiledviewer can show floating window dialog widgets when user
clicks any of such widget in the dialog.

Change-Id: I13d756f236379bc8b2041ed41cb7b502f7fd9b24

6 files changed, 132 insertions, 2 deletions

diff --git a/libreofficekit/qa/gtktiledviewer/gtv-application-window.cxx b/libreofficekit/qa/gtktiledviewer/gtv-application-window.cxx
index 077e2577f384..8a5ff9a56d37 100644
--- a/libreofficekit/qa/gtktiledviewer/gtv-application-window.cxx
+++ b/libreofficekit/qa/gtktiledviewer/gtv-application-window.cxx
@@ -315,6 +315,7 @@ static void setupDocView(GtvApplicationWindow* window)
     g_signal_connect(window->lokdocview, "password-required", G_CALLBACK(LOKDocViewSigHandlers::passwordRequired), nullptr);
     g_signal_connect(window->lokdocview, "comment", G_CALLBACK(LOKDocViewSigHandlers::comment), nullptr);
     g_signal_connect(window->lokdocview, "dialog-invalidate", G_CALLBACK(LOKDocViewSigHandlers::dialogInvalidate), nullptr);
+    g_signal_connect(window->lokdocview, "dialog-child", G_CALLBACK(LOKDocViewSigHandlers::dialogChild), nullptr);
 
     g_signal_connect(window->lokdocview, "configure-event", G_CALLBACK(LOKDocViewSigHandlers::configureEvent), nullptr);
 }
diff --git a/libreofficekit/qa/gtktiledviewer/gtv-lok-dialog.cxx b/libreofficekit/qa/gtktiledviewer/gtv-lok-dialog.cxx
index bb8800e3d734..1bfb9d538ead 100644
--- a/libreofficekit/qa/gtktiledviewer/gtv-lok-dialog.cxx
+++ b/libreofficekit/qa/gtktiledviewer/gtv-lok-dialog.cxx
@@ -32,6 +32,7 @@ struct GtvLokDialogPrivate
 {
     LOKDocView* lokdocview;
     GtkWidget* pDialogDrawingArea;
+    GtkWidget* pFloatingWin;
 
     guint32 m_nLastButtonPressTime;
     guint32 m_nLastButtonReleaseTime;
@@ -79,6 +80,8 @@ gtv_lok_dialog_draw(GtkWidget* pDialogDrawingArea, cairo_t* pCairo, gpointer)
     GtvLokDialog* pDialog = GTV_LOK_DIALOG(gtk_widget_get_toplevel(pDialogDrawingArea));
     GtvLokDialogPrivate* priv = getPrivate(pDialog);
 
+
+    g_info("panting dialog");
     int nWidth = 1024;
     int nHeight = 768;
     cairo_surface_t* pSurface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, nWidth, nHeight);
@@ -324,6 +327,7 @@ gtv_lok_dialog_init(GtvLokDialog* dialog)
 
     GtkWidget* pContentArea = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
     priv->pDialogDrawingArea = gtk_drawing_area_new();
+    priv->pFloatingWin = nullptr;
 
     priv->m_nLastButtonPressTime = 0;
     priv->m_nLastButtonReleaseTime = 0;
@@ -421,14 +425,75 @@ gtv_lok_dialog_class_init(GtvLokDialogClass* klass)
     g_object_class_install_properties (G_OBJECT_CLASS(klass), PROP_LAST, properties);
 }
 
+static void
+gtv_lok_dialog_floating_win_draw(GtkWidget* pDrawingArea, cairo_t* pCairo, gpointer userdata)
+{
+    GtvLokDialog* pDialog = GTV_LOK_DIALOG(userdata);
+    GtvLokDialogPrivate* priv = getPrivate(pDialog);
+
+    g_info("gtv_lok_dialog_floating_win_draw triggered");
+    int nWidth = 800;
+    int nHeight = 600;
+    cairo_surface_t* pSurface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, nWidth, nHeight);
+    unsigned char* pBuffer = cairo_image_surface_get_data(pSurface);
+    LibreOfficeKitDocument* pDocument = lok_doc_view_get_document(LOK_DOC_VIEW(priv->lokdocview));
+    pDocument->pClass->paintActiveFloatingWindow(pDocument, priv->dialogid, pBuffer, &nWidth, &nHeight);
+    g_info("Size of floating window: %d x %d", nWidth, nHeight);
+
+    gtk_widget_set_size_request(GTK_WIDGET(pDrawingArea), nWidth, nHeight);
+    gtk_widget_set_size_request(GTK_WIDGET(pDialog), nWidth, nHeight);
+    gtk_window_resize(GTK_WINDOW(pDialog), nWidth, nHeight);
+
+    cairo_surface_flush(pSurface);
+    cairo_surface_mark_dirty(pSurface);
+
+    cairo_set_source_surface(pCairo, pSurface, 0, 0);
+    cairo_paint(pCairo);
+}
+
 void
 gtv_lok_dialog_invalidate(GtvLokDialog* dialog)
 {
-    // trigger a draw on the drawing area
     GtvLokDialogPrivate* priv = getPrivate(dialog);
+
+    // trigger a draw on the dialog drawing area
     gtk_widget_queue_draw(priv->pDialogDrawingArea);
 }
 
+void gtv_lok_dialog_child_invalidate(GtvLokDialog* dialog)
+{
+    g_info("Dialog's floating window invalidate");
+
+    GtvLokDialogPrivate* priv = getPrivate(dialog);
+    // remove any existing floating windows, for now
+    if (priv->pFloatingWin)
+        gtk_widget_destroy(priv->pFloatingWin);
+
+    priv->pFloatingWin = gtk_window_new(GTK_WINDOW_POPUP);
+    GtkWidget* pDrawingArea = gtk_drawing_area_new();
+    gtk_container_add(GTK_CONTAINER(priv->pFloatingWin), pDrawingArea);
+
+    gtk_window_set_transient_for(GTK_WINDOW(priv->pFloatingWin), GTK_WINDOW(dialog));
+    gtk_window_set_position(GTK_WINDOW(priv->pFloatingWin), GTK_WIN_POS_MOUSE);
+    gtk_window_set_destroy_with_parent(GTK_WINDOW(priv->pFloatingWin), true);
+
+    g_signal_connect(G_OBJECT(pDrawingArea), "draw", G_CALLBACK(gtv_lok_dialog_floating_win_draw), dialog);
+
+    gtk_widget_set_size_request(priv->pFloatingWin, 1, 1);
+    gtk_widget_show_all(priv->pFloatingWin);
+    gtk_window_present(GTK_WINDOW(priv->pFloatingWin));
+}
+
+void gtv_lok_dialog_child_close(GtvLokDialog* dialog)
+{
+    g_info("Dialog's floating window close");
+
+    GtvLokDialogPrivate* priv = getPrivate(dialog);
+    if (priv->pFloatingWin)
+        gtk_widget_destroy(priv->pFloatingWin);
+}
+
+
 GtkWidget*
 gtv_lok_dialog_new(LOKDocView* pDocView, const gchar* dialogId)
 {
diff --git a/libreofficekit/qa/gtktiledviewer/gtv-lok-dialog.hxx b/libreofficekit/qa/gtktiledviewer/gtv-lok-dialog.hxx
index 0205f2ede3f4..bce9edbadba1 100644
--- a/libreofficekit/qa/gtktiledviewer/gtv-lok-dialog.hxx
+++ b/libreofficekit/qa/gtktiledviewer/gtv-lok-dialog.hxx
@@ -39,6 +39,10 @@ GtkWidget* gtv_lok_dialog_new(LOKDocView* pDocView, const gchar* dialogId);
 
 void gtv_lok_dialog_invalidate(GtvLokDialog* dialog);
 
+void gtv_lok_dialog_child_invalidate(GtvLokDialog* dialog);
+
+void gtv_lok_dialog_child_close(GtvLokDialog* dialog);
+
 G_END_DECLS
 
 #endif /* GTV_LOK_DIALOG_H */
diff --git a/libreofficekit/qa/gtktiledviewer/gtv-lokdocview-signal-handlers.cxx b/libreofficekit/qa/gtktiledviewer/gtv-lokdocview-signal-handlers.cxx
index 8f86ecd43ca7..8896566499c1 100644
--- a/libreofficekit/qa/gtktiledviewer/gtv-lokdocview-signal-handlers.cxx
+++ b/libreofficekit/qa/gtktiledviewer/gtv-lokdocview-signal-handlers.cxx
@@ -281,7 +281,7 @@ void LOKDocViewSigHandlers::comment(LOKDocView* pDocView, gchar* pComment, gpoin
     }
 }
 
-void LOKDocViewSigHandlers::dialogInvalidate(LOKDocView* pDocView, gchar* /*pDialogId*/, gpointer)
+void LOKDocViewSigHandlers::dialogInvalidate(LOKDocView* pDocView, gchar* pPayload, gpointer)
 {
     GtvApplicationWindow* window = GTV_APPLICATION_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(pDocView)));
 //    GtkWindow* pDialog = gtv_application_window_get_child_window_by_id(window, pDialogId);
@@ -300,6 +300,28 @@ void LOKDocViewSigHandlers::dialogInvalidate(LOKDocView* pDocView, gchar* /*pDia
 */
 }
 
+void LOKDocViewSigHandlers::dialogChild(LOKDocView* pDocView, gchar* pPayload, gpointer)
+{
+  GtvApplicationWindow* window = GTV_APPLICATION_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(pDocView)));
+
+  std::stringstream aStream(pPayload);
+  boost::property_tree::ptree aRoot;
+  boost::property_tree::read_json(aStream, aRoot);
+  //std::string aDialogId = aRoot.get<std::string>("dialogId");
+  std::string aAction = aRoot.get<std::string>("action");
+
+  // temporary hack to invalidate/close floating window of all opened dialogs
+  GList* pChildWins = gtv_application_window_get_all_child_windows(window);
+  GList* pIt = nullptr;
+  for (pIt = pChildWins; pIt != nullptr; pIt = pIt->next)
+  {
+      if (aAction == "invalidate")
+          gtv_lok_dialog_child_invalidate(GTV_LOK_DIALOG(pIt->data));
+      else if (aAction == "close")
+          gtv_lok_dialog_child_close(GTV_LOK_DIALOG(pIt->data));
+  }
+}
+
 gboolean LOKDocViewSigHandlers::configureEvent(GtkWidget* pWidget, GdkEventConfigure* /*pEvent*/, gpointer /*pData*/)
 {
     GtvApplicationWindow* window = GTV_APPLICATION_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(pWidget)));
diff --git a/libreofficekit/qa/gtktiledviewer/gtv-lokdocview-signal-handlers.hxx b/libreofficekit/qa/gtktiledviewer/gtv-lokdocview-signal-handlers.hxx
index 73bf9c2860ad..a455c3f1fc4c 100644
--- a/libreofficekit/qa/gtktiledviewer/gtv-lokdocview-signal-handlers.hxx
+++ b/libreofficekit/qa/gtktiledviewer/gtv-lokdocview-signal-handlers.hxx
@@ -26,6 +26,7 @@ namespace LOKDocViewSigHandlers {
     void passwordRequired(LOKDocView* pDocView, char* pUrl, gboolean bModify, gpointer);
     void comment(LOKDocView* pDocView, gchar* pComment, gpointer);
     void dialogInvalidate(LOKDocView* pDocView, gchar* pDialogId, gpointer);
+    void dialogChild(LOKDocView* pDocView, gchar* pPayload, gpointer);
 
     gboolean configureEvent(GtkWidget* pWidget, GdkEventConfigure* pEvent, gpointer pData);
 }
diff --git a/libreofficekit/source/gtk/lokdocview.cxx b/libreofficekit/source/gtk/lokdocview.cxx
index b5fc11d82d9e..1bdb80c754ed 100644
--- a/libreofficekit/source/gtk/lokdocview.cxx
+++ b/libreofficekit/source/gtk/lokdocview.cxx
@@ -280,6 +280,7 @@ enum
     COMMENT,
     RULER,
     DIALOG_INVALIDATE,
+    DIALOG_CHILD,
 
     LAST_SIGNAL
 };
@@ -439,6 +440,8 @@ callbackTypeToString (int nType)
         return "LOK_CALLBACK_RULER_UPDATE";
     case LOK_CALLBACK_DIALOG_INVALIDATE:
         return "LOK_CALLBACK_DIALOG_INVALIDATE";
+    case LOK_CALLBACK_DIALOG_CHILD:
+        return "LOK_CALLBACK_DIALOG_CHILD";
     }
     g_assert(false);
     return nullptr;
@@ -1414,6 +1417,9 @@ callback (gpointer pData)
     case LOK_CALLBACK_DIALOG_INVALIDATE:
         g_signal_emit(pCallback->m_pDocView, doc_view_signals[DIALOG_INVALIDATE], 0, pCallback->m_aPayload.c_str());
         break;
+    case LOK_CALLBACK_DIALOG_CHILD:
+        g_signal_emit(pCallback->m_pDocView, doc_view_signals[DIALOG_CHILD], 0, pCallback->m_aPayload.c_str());
+        break;
     default:
         g_assert(false);
         break;
@@ -3225,6 +3231,37 @@ static void lok_doc_view_class_init (LOKDocViewClass* pClass)
                      g_cclosure_marshal_generic,
                      G_TYPE_NONE, 1,
                      G_TYPE_STRING);
+
+    /**
+     * LOKDocView::dialog-child:
+     * @pDocView: the #LOKDocView on which the signal is emitted
+     * @pPayload: JSON described below:
+     *
+     * Invalidation corresponding to dialog's children.
+     * Eg: Floating window etc.
+     *
+     * Payload example:
+     * {
+     *   "dialogID": "SpellDialog",
+     *   "action": "close"
+     * }
+     *
+     * - dialogID is the UNO command of the dialog
+     * - action can be
+     *   - close, means dialog child window is closed now
+     *   - invalidate, means dialog child window is invalidated
+     *     It also means that dialog child window is created if it's the first
+     *     invalidate
+     */
+    doc_view_signals[DIALOG_CHILD] =
+        g_signal_new("dialog-child",
+                     G_TYPE_FROM_CLASS(pGObjectClass),
+                     G_SIGNAL_RUN_FIRST,
+                     0,
+                     nullptr, nullptr,
+                     g_cclosure_marshal_generic,
+                     G_TYPE_NONE, 1,
+                     G_TYPE_STRING);
 }
 
 SAL_DLLPUBLIC_EXPORT GtkWidget*