tdf#96318: Add searching API

Clients should now use these APIs to search for text in the
widget, rather than executing UNO commands directly on the
widget. This allows searching for text in the widget in view-only
mode too.

Change-Id: I013b6f96e69a634ec33367394d39c0f645a4994d
Reviewed-on: https://gerrit.libreoffice.org/20488
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: David Tardon <dtardon@redhat.com>
(cherry picked from commit 0f64cf72ff3b930e306e937bb18f4cbe55a8026a)

1 files changed, 88 insertions, 19 deletions

diff --git a/libreofficekit/source/gtk/lokdocview.cxx b/libreofficekit/source/gtk/lokdocview.cxx
index cbdac7171586..488abc07ca40 100644
--- a/libreofficekit/source/gtk/lokdocview.cxx
+++ b/libreofficekit/source/gtk/lokdocview.cxx
@@ -306,6 +306,67 @@ callbackTypeToString (int nType)
     return nullptr;
 }
 
+static void
+LOKPostCommand (LOKDocView* pDocView,
+                const gchar* pCommand,
+                const gchar* pArguments,
+                gboolean bNotifyWhenFinished)
+{
+    LOKDocViewPrivate& priv = getPrivate(pDocView);
+    GTask* task = g_task_new(pDocView, nullptr, nullptr, nullptr);
+    LOEvent* pLOEvent = new LOEvent(LOK_POST_COMMAND);
+    GError* error = nullptr;
+    pLOEvent->m_pCommand = pCommand;
+    pLOEvent->m_pArguments  = g_strdup(pArguments);
+    pLOEvent->m_bNotifyWhenFinished = bNotifyWhenFinished;
+
+    g_task_set_task_data(task, pLOEvent, LOEvent::destroy);
+    g_thread_pool_push(priv->lokThreadPool, g_object_ref(task), &error);
+    if (error != nullptr)
+    {
+        g_warning("Unable to call LOK_POST_COMMAND: %s", error->message);
+        g_clear_error(&error);
+    }
+    g_object_unref(task);
+}
+
+static void
+doSearch(LOKDocView* pDocView, const char* pText, bool bBackwards, bool highlightAll)
+{
+    LOKDocViewPrivate& priv = getPrivate(pDocView);
+    boost::property_tree::ptree aTree;
+    GtkWidget* drawingWidget = GTK_WIDGET(pDocView);
+    GdkWindow* drawingWindow = gtk_widget_get_window(drawingWidget);
+    cairo_region_t* cairoVisRegion = gdk_window_get_visible_region(drawingWindow);
+    cairo_rectangle_int_t cairoVisRect;
+    int x, y;
+
+    cairo_region_get_rectangle(cairoVisRegion, 0, &cairoVisRect);
+    x = pixelToTwip (cairoVisRect.x, priv->m_fZoom);
+    y = pixelToTwip (cairoVisRect.y, priv->m_fZoom);
+    
+    aTree.put(boost::property_tree::ptree::path_type("SearchItem.SearchString/type", '/'), "string");
+    aTree.put(boost::property_tree::ptree::path_type("SearchItem.SearchString/value", '/'), pText);
+    aTree.put(boost::property_tree::ptree::path_type("SearchItem.Backward/type", '/'), "boolean");
+    aTree.put(boost::property_tree::ptree::path_type("SearchItem.Backward/value", '/'), bBackwards);
+    if (highlightAll)
+    {
+        aTree.put(boost::property_tree::ptree::path_type("SearchItem.Command/type", '/'), "unsigned short");
+        // SvxSearchCmd::FIND_ALL
+        aTree.put(boost::property_tree::ptree::path_type("SearchItem.Command/value", '/'), "1");
+    }
+
+    aTree.put(boost::property_tree::ptree::path_type("SearchItem.SearchStartPointX/type", '/'), "long");
+    aTree.put(boost::property_tree::ptree::path_type("SearchItem.SearchStartPointX/value", '/'), x);
+    aTree.put(boost::property_tree::ptree::path_type("SearchItem.SearchStartPointY/type", '/'), "long");
+    aTree.put(boost::property_tree::ptree::path_type("SearchItem.SearchStartPointY/value", '/'), y);
+
+    std::stringstream aStream;
+    boost::property_tree::write_json(aStream, aTree);
+
+    LOKPostCommand (pDocView, ".uno:ExecuteSearch", aStream.str().c_str(), false);
+}
+
 static bool
 isEmptyRectangle(const GdkRectangle& rRectangle)
 {
@@ -1770,10 +1831,7 @@ lokThreadFunc(gpointer data, gpointer /*user_data*/)
         openDocumentInThread(task);
         break;
     case LOK_POST_COMMAND:
-        if (priv->m_bEdit)
-            postCommandInThread(task);
-        else
-            g_info ("LOK_POST_COMMAND: ignoring commands in view-only mode");
+        postCommandInThread(task);
         break;
     case LOK_SET_EDIT:
         setEditInThread(task);
@@ -2575,7 +2633,6 @@ lok_doc_view_get_edit (LOKDocView* pDocView)
     return priv->m_bEdit;
 }
 
-
 SAL_DLLPUBLIC_EXPORT void
 lok_doc_view_post_command (LOKDocView* pDocView,
                            const gchar* pCommand,
@@ -2583,21 +2640,33 @@ lok_doc_view_post_command (LOKDocView* pDocView,
                            gboolean bNotifyWhenFinished)
 {
     LOKDocViewPrivate& priv = getPrivate(pDocView);
-    GTask* task = g_task_new(pDocView, nullptr, nullptr, nullptr);
-    LOEvent* pLOEvent = new LOEvent(LOK_POST_COMMAND);
-    GError* error = nullptr;
-    pLOEvent->m_pCommand = pCommand;
-    pLOEvent->m_pArguments  = g_strdup(pArguments);
-    pLOEvent->m_bNotifyWhenFinished = bNotifyWhenFinished;
+    if (priv->m_bEdit)
+        LOKPostCommand(pDocView, pCommand, pArguments, bNotifyWhenFinished);
+    else
+        g_info ("LOK_POST_COMMAND: ignoring commands in view-only mode");
+}
 
-    g_task_set_task_data(task, pLOEvent, LOEvent::destroy);
-    g_thread_pool_push(priv->lokThreadPool, g_object_ref(task), &error);
-    if (error != nullptr)
-    {
-        g_warning("Unable to call LOK_POST_COMMAND: %s", error->message);
-        g_clear_error(&error);
-    }
-    g_object_unref(task);
+SAL_DLLPUBLIC_EXPORT void
+lok_doc_view_find_prev (LOKDocView* pDocView,
+                        const gchar* pText,
+                        gboolean bHighlightAll)
+{
+    doSearch(pDocView, pText, true, bHighlightAll);
+}
+
+SAL_DLLPUBLIC_EXPORT void
+lok_doc_view_find_next (LOKDocView* pDocView,
+                        const gchar* pText,
+                        gboolean bHighlightAll)
+{
+    doSearch(pDocView, pText, false, bHighlightAll);
+}
+
+SAL_DLLPUBLIC_EXPORT void
+lok_doc_view_highlight_all (LOKDocView* pDocView,
+                            const gchar* pText)
+{
+    doSearch(pDocView, pText, false, true);
 }
 
 SAL_DLLPUBLIC_EXPORT float