[evolution/wip/webkit-composer: 231/262] Implement turning off of the monospaced font mode on given selection.



commit 033baff91f49124ae9d45da20e4f511041af06aa
Author: Tomas Popela <tpopela redhat com>
Date:   Thu Jul 25 14:19:06 2013 +0200

    Implement turning off of the monospaced font mode on given selection.

 e-util/e-editor-selection.c |  111 ++++++++++++++++++++++++++++++-------------
 1 files changed, 77 insertions(+), 34 deletions(-)
---
diff --git a/e-util/e-editor-selection.c b/e-util/e-editor-selection.c
index edbf1a5..d6eda50 100644
--- a/e-util/e-editor-selection.c
+++ b/e-util/e-editor-selection.c
@@ -1953,6 +1953,28 @@ e_editor_selection_is_monospaced (EEditorSelection *selection)
        return get_has_style (selection, "tt");
 }
 
+static void
+move_caret_into_element (WebKitDOMDocument *document,
+                        WebKitDOMElement *element)
+{
+       WebKitDOMDOMWindow *window;
+       WebKitDOMDOMSelection *window_selection;
+       WebKitDOMRange *new_range;
+
+       if (!element)
+               return;
+
+       window = webkit_dom_document_get_default_view (document);
+       window_selection = webkit_dom_dom_window_get_selection (window);
+       new_range = webkit_dom_document_create_range (document);
+
+       webkit_dom_range_select_node_contents (
+                       new_range, WEBKIT_DOM_NODE (element), NULL);
+       webkit_dom_range_collapse (new_range, FALSE, NULL);
+       webkit_dom_dom_selection_remove_all_ranges (window_selection);
+       webkit_dom_dom_selection_add_range (window_selection, new_range);
+}
+
 /**
  * e_editor_selection_set_monospaced:
  * @selection: an #EEditorSelection
@@ -2013,24 +2035,67 @@ e_editor_selection_set_monospaced (EEditorSelection *selection,
 
                        tt_element = webkit_dom_document_create_element (document, "TT", NULL);
                        /* https://bugs.webkit.org/show_bug.cgi?id=15256 */
-                       webkit_dom_html_element_set_inner_html (WEBKIT_DOM_HTML_ELEMENT (tt_element), 
UNICODE_HIDDEN_SPACE, NULL);
+                       webkit_dom_html_element_set_inner_html (
+                               WEBKIT_DOM_HTML_ELEMENT (tt_element),
+                               UNICODE_HIDDEN_SPACE, NULL);
                        webkit_dom_range_insert_node (range, WEBKIT_DOM_NODE (tt_element), NULL);
-                       webkit_dom_range_collapse (range, FALSE, NULL);
 
-                       webkit_dom_dom_selection_remove_all_ranges (window_selection);
-                       webkit_dom_dom_selection_add_range (window_selection, range);
+                       move_caret_into_element (document, tt_element);
                }
        } else {
                if (g_strcmp0 (e_editor_selection_get_string (selection), "") != 0) {
-                       EEditorWidgetCommand command;
+                       gchar *html;
+                       gchar *start_position, *end_position;
+                       WebKitDOMElement *tt_element;
+                       WebKitDOMElement *wrapper;
+                       WebKitDOMNode *node;
 
-                       /* XXX This removes _all_ formatting that the selection has.
-                        *     In theory it's possible to write a code that would
-                        *     remove the <TT> from selection using advanced DOM
-                        *     manipulation, but right now I don't really feel like
-                        *     writing it all. */
-                       command = E_EDITOR_WIDGET_COMMAND_REMOVE_FORMAT;
-                       e_editor_widget_exec_command (editor_widget, command, NULL);
+                       node = webkit_dom_range_get_end_container (range, NULL);
+                       if (g_strcmp0 (webkit_dom_node_get_local_name (node), "tt") == 0)
+                               tt_element = WEBKIT_DOM_ELEMENT (node);
+                       else
+                               tt_element = webkit_dom_node_get_parent_element (node);
+
+                       if (g_strcmp0 (webkit_dom_element_get_tag_name (tt_element), "TT") != 0)  {
+                               g_object_unref (editor_widget);
+                               return;
+                       }
+
+                       wrapper = webkit_dom_document_create_element (document, "SPAN", NULL);
+                       webkit_dom_html_element_set_id (WEBKIT_DOM_HTML_ELEMENT (wrapper), 
"-x-evo-remove-tt");
+                       webkit_dom_range_surround_contents (range, WEBKIT_DOM_NODE (wrapper), NULL);
+
+                       html = webkit_dom_html_element_get_outer_html (WEBKIT_DOM_HTML_ELEMENT (tt_element));
+
+                       start_position = g_strstr_len (html, -1, "<span id=\"-x-evo-remove-tt\"");
+                       end_position = g_strstr_len (start_position, -1, "</span>");
+
+                       webkit_dom_html_element_set_outer_html (
+                               WEBKIT_DOM_HTML_ELEMENT (tt_element),
+                               g_strconcat (
+                                       /* Beginning */
+                                       g_utf8_substring (html,
+                                               0,
+                                               g_utf8_pointer_to_offset (html, start_position)),
+                                       /* End the previous TT tag */
+                                       "</tt>",
+                                       /* Inside will be the same */
+                                       webkit_dom_html_element_get_inner_html (
+                                               WEBKIT_DOM_HTML_ELEMENT (wrapper)),
+                                       /* Put caret position here */
+                                       "<span id=\"-x-evo-caret-position\">*</span>",
+                                       /* Start the new TT element */
+                                       "<tt>",
+                                       /* End - we have to start after </span> */
+                                       g_utf8_substring (html,
+                                               g_utf8_pointer_to_offset (html, end_position) + 7,
+                                               g_utf8_strlen (html, -1)),
+                                       NULL),
+                               NULL);
+
+                       e_editor_selection_restore_caret_position (selection);
+
+                       g_free (html);
                } else {
                        WebKitDOMElement *tt_element;
                        WebKitDOMRange *new_range;
@@ -2645,28 +2710,6 @@ e_editor_selection_save_caret_position (EEditorSelection *selection)
                NULL);
 }
 
-static void
-move_caret_into_element (WebKitDOMDocument *document,
-                        WebKitDOMElement *element)
-{
-       WebKitDOMDOMWindow *window;
-       WebKitDOMDOMSelection *window_selection;
-       WebKitDOMRange *new_range;
-
-       if (!element)
-               return;
-
-       window = webkit_dom_document_get_default_view (document);
-       window_selection = webkit_dom_dom_window_get_selection (window);
-       new_range = webkit_dom_document_create_range (document);
-
-       webkit_dom_range_select_node_contents (
-                       new_range, WEBKIT_DOM_NODE (element), NULL);
-       webkit_dom_range_collapse (new_range, FALSE, NULL);
-       webkit_dom_dom_selection_remove_all_ranges (window_selection);
-       webkit_dom_dom_selection_add_range (window_selection, new_range);
-}
-
 /**
  * e_editor_selection_restore_caret_position:
  * @selection: an #EEditorSelection


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