move list depth detection to separate function

diff --git a/application/gtk-text.c b/application/gtk-text.c
index f5753ca9eb601a62267705efd15f87082a2b5d5a..e8dc5e4c21be8a373676ea12e7d065304ba80922 100644 (file)
--- a/application/gtk-text.c
+++ b/application/gtk-text.c
@@ -301,6 +301,58 @@ static void editor_delete_range_cb(
     
 }
 
+static int get_prev_list(GtkTextBuffer *buffer, const GtkTextIter *iter, int *depth, int *style, int *num, int *remove_offset) {
+    int list_depth = 0;
+    int list_style = 0;
+    int list_num = 0;
+    int remove_list_off = -1;
+    
+    GtkTextIter iter2 = *iter;
+    GtkTextChildAnchor *anchor = NULL;
+    GtkTextChildAnchor *prevAnchor = NULL;
+    int off = 0;
+    // iterate over chars in line and check for anchors
+    int chars_per_line = 0;
+    while(gtk_text_iter_backward_char(&iter2)) {
+        if(gtk_text_iter_get_char(&iter2) == '\n') {
+            break;
+        }
+        off = gtk_text_iter_get_offset(&iter2);
+        
+        anchor = gtk_text_iter_get_child_anchor(&iter2);
+        if(anchor && anchor != prevAnchor) {
+            EmbeddedWidget *em = g_object_get_data(G_OBJECT(anchor), "em");
+            if(em) {
+                if(em->type == EMBEDDED_WIDGET_LIST) {
+                    list_style = em->intdata1;
+                    list_num = em->intdata2;
+                    list_depth++;
+                } else if(em->type == EMBEDDED_WIDGET_LIST_INDENT) {
+                    list_depth++;
+                } // else: other type of embedded widget (image, ...)
+            }
+        }
+        prevAnchor = anchor;
+
+        chars_per_line++;
+    }
+
+    if(chars_per_line == 1) {
+        // empty list element -> inserting a newline terminates the list
+        list_depth = 0;
+        *remove_offset = off + 1;
+    }
+    
+    if(list_depth > 0) {
+        *depth = list_depth;
+        *style = list_style;
+        *num = list_num;
+        *remove_offset = -1;
+        return 1;
+    }
+    return 0;
+}
+
 static void edit_insert_text_cb(
         GtkTextBuffer *buffer,
         const GtkTextIter *location,
@@ -322,53 +374,14 @@ static void edit_insert_text_cb(
     cxstring lines[64];
     size_t nlines = cx_strsplit(ins_text, "\n", 64, lines);
     
-    int remove_list_off = -1;
-    
     int list_depth = 0;
     int list_style = 0;
     int list_num = 0;
+    int remove_list_off = -1;
     if(nlines > 1) {
         // Inserted text contains at least one linebreak
         // Check if the current line contains a list
-        GtkTextIter prev_line = *location;
-        if(gtk_text_iter_backward_line(&prev_line)) {
-            GtkTextChildAnchor *anchor = NULL;
-            GtkTextChildAnchor *prevAnchor = NULL;
-            int anchor_off = -1;
-            int end_offset = gtk_text_iter_get_offset(&begin);
-            // iterate over chars in line and check for anchors
-            int chars_per_line = 0;
-            int off;
-            while((off = gtk_text_iter_get_offset(&prev_line)) < end_offset) {
-                anchor = gtk_text_iter_get_child_anchor(&prev_line);
-                if(anchor && anchor != prevAnchor) {
-                    EmbeddedWidget *em = g_object_get_data(G_OBJECT(anchor), "em");
-                    if(em) {
-                        if(em->type == EMBEDDED_WIDGET_LIST) {
-                            list_style = em->intdata1;
-                            list_num = em->intdata2;
-                            list_depth++;
-                            anchor_off = off;
-                        } else if(em->type == EMBEDDED_WIDGET_LIST_INDENT) {
-                            list_depth++;
-                            anchor_off = off;
-                        } // else: other type of embedded widget (image, ...)
-                    }
-                }
-                prevAnchor = anchor;
-                
-                if(!gtk_text_iter_forward_char(&prev_line)) {
-                    prev_line = begin;
-                }
-                chars_per_line++;
-            }
-            
-            if(chars_per_line == 1) {
-                // empty list element -> inserting a newline terminates the list
-                list_depth = 0;
-                remove_list_off = off;
-            }
-        }
+        (void)get_prev_list(buffer, &begin, &list_depth, &list_style, &list_num, &remove_list_off);
     }
     
     GtkTextIter prev = begin;