[evolution/gnome-3-22] Correct external editor plugin to work again



commit 3f71330dc4fd0e260ec1e57c7eec43282b2e9b70
Author: Milan Crha <mcrha redhat com>
Date:   Thu Oct 6 15:03:23 2016 +0200

    Correct external editor plugin to work again

 modules/webkit-editor/e-webkit-editor.c            |    4 +-
 .../web-extension/e-editor-web-extension.c         |    4 +-
 plugins/external-editor/external-editor.c          |  116 +++++++++++--------
 3 files changed, 71 insertions(+), 53 deletions(-)
---
diff --git a/modules/webkit-editor/e-webkit-editor.c b/modules/webkit-editor/e-webkit-editor.c
index e3c9763..b2d48a4 100644
--- a/modules/webkit-editor/e-webkit-editor.c
+++ b/modules/webkit-editor/e-webkit-editor.c
@@ -2362,7 +2362,7 @@ webkit_editor_get_caret_position (EContentEditor *editor)
                NULL);
 
        if (result) {
-               ret_val = g_variant_get_uint32 (result);
+               g_variant_get (result, "(u)", &ret_val);
                g_variant_unref (result);
        }
 
@@ -2390,7 +2390,7 @@ webkit_editor_get_caret_offset (EContentEditor *editor)
                NULL);
 
        if (result) {
-               ret_val = g_variant_get_uint32 (result);
+               g_variant_get (result, "(u)", &ret_val);
                g_variant_unref (result);
        }
 
diff --git a/modules/webkit-editor/web-extension/e-editor-web-extension.c 
b/modules/webkit-editor/web-extension/e-editor-web-extension.c
index 3c2f06c..de4289e 100644
--- a/modules/webkit-editor/web-extension/e-editor-web-extension.c
+++ b/modules/webkit-editor/web-extension/e-editor-web-extension.c
@@ -2204,7 +2204,7 @@ handle_method_call (GDBusConnection *connection,
 
                g_dbus_method_invocation_return_value (
                        invocation,
-                       value ? g_variant_new_uint32 (value) : NULL);
+                       g_variant_new ("(u)", value));
        } else if (g_strcmp0 (method_name, "DOMGetCaretOffset") == 0) {
                guint32 value;
 
@@ -2218,7 +2218,7 @@ handle_method_call (GDBusConnection *connection,
 
                g_dbus_method_invocation_return_value (
                        invocation,
-                       value ? g_variant_new_uint32 (value) : NULL);
+                       g_variant_new ("(u)", value));
        } else if (g_strcmp0 (method_name, "DOMClearUndoRedoHistory") == 0) {
                EEditorUndoRedoManager *manager;
 
diff --git a/plugins/external-editor/external-editor.c b/plugins/external-editor/external-editor.c
index f349b5f..52f04bf 100644
--- a/plugins/external-editor/external-editor.c
+++ b/plugins/external-editor/external-editor.c
@@ -186,28 +186,49 @@ disable_composer (EMsgComposer *composer)
        enable_disable_composer (composer, FALSE);
 }
 
-/* needed because the new thread needs to call g_idle_add () */
 static gboolean
-update_composer_text (GArray *array)
+enable_composer_idle (gpointer user_data)
 {
+       EMsgComposer *composer = user_data;
+
+       g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), FALSE);
+
+       enable_composer (composer);
+
+       g_object_unref (composer);
+
+       return FALSE;
+}
+
+struct ExternalEditorData {
        EMsgComposer *composer;
+       gchar *content;
+       gint cursor_position, cursor_offset;
+};
+
+/* needed because the new thread needs to call g_idle_add () */
+static gboolean
+update_composer_text (gpointer user_data)
+{
+       struct ExternalEditorData *eed = user_data;
        EHTMLEditor *editor;
        EContentEditor *cnt_editor;
-       gchar *text;
 
-       composer = g_array_index (array, gpointer, 0);
-       text = g_array_index (array, gpointer, 1);
+       g_return_val_if_fail (eed != NULL, FALSE);
+       g_return_val_if_fail (E_IS_MSG_COMPOSER (eed->composer), FALSE);
 
-       editor = e_msg_composer_get_editor (composer);
+       editor = e_msg_composer_get_editor (eed->composer);
        cnt_editor = e_html_editor_get_content_editor (editor);
 
-       e_msg_composer_set_body_text (composer, text, FALSE);
+       e_msg_composer_set_body_text (eed->composer, eed->content, FALSE);
 
-       enable_composer (composer);
+       enable_composer (eed->composer);
 
        e_content_editor_set_changed (cnt_editor, TRUE);
 
-       g_free (text);
+       g_clear_object (&eed->composer);
+       g_free (eed->content);
+       g_free (eed);
 
        return FALSE;
 }
@@ -227,6 +248,7 @@ run_error_dialog (struct run_error_dialog_data *data)
        e_alert_run_dialog_for_args (GTK_WINDOW (data->composer), data->text, NULL);
        enable_composer (data->composer);
 
+       g_clear_object (&data->composer);
        g_free (data);
 
        return FALSE;
@@ -260,17 +282,15 @@ static GMutex external_editor_running_lock;
 static gpointer
 external_editor_thread (gpointer user_data)
 {
-       EMsgComposer *composer = user_data;
+       struct ExternalEditorData *eed = user_data;
        gchar *filename = NULL;
        gint status = 0;
        GSettings *settings;
-       gchar *editor_cmd_line = NULL, *editor_cmd = NULL, *content;
-       gint fd, position = -1, offset = -1;
-       EHTMLEditor *editor;
-       EContentEditor *cnt_editor;
+       gchar *editor_cmd_line = NULL, *editor_cmd = NULL;
+       gint fd;
 
-       editor = e_msg_composer_get_editor (composer);
-       cnt_editor = e_html_editor_get_content_editor (editor);
+       g_return_val_if_fail (eed != NULL, NULL);
+       g_return_val_if_fail (E_IS_MSG_COMPOSER (eed->composer), NULL);
 
        /* prefix temp files with evo so .*vimrc can be setup to recognize them */
        fd = g_file_open_tmp ("evoXXXXXX", &filename, NULL);
@@ -279,18 +299,13 @@ external_editor_thread (gpointer user_data)
                d (printf ("\n\aTemporary-file Name is : [%s] \n\a", filename));
 
                /* Push the text (if there is one) from the composer to the file */
-               content = e_content_editor_get_content (
-                       cnt_editor,
-                       E_CONTENT_EDITOR_GET_TEXT_PLAIN |
-                       E_CONTENT_EDITOR_GET_PROCESSED,
-                       NULL, NULL);
-               if (content && *content)
-                       g_file_set_contents (filename, content, strlen (content), NULL);
+               if (eed->content && *eed->content)
+                       g_file_set_contents (filename, eed->content, strlen (eed->content), NULL);
        } else {
                struct run_error_dialog_data *data;
 
                data = g_new0 (struct run_error_dialog_data, 1);
-               data->composer = composer;
+               data->composer = g_object_ref (eed->composer);
                data->text = "org.gnome.evolution.plugins.external-editor:no-temp-file";
 
                g_warning ("Temporary file fd is null");
@@ -313,32 +328,27 @@ external_editor_thread (gpointer user_data)
        g_object_unref (settings);
 
        if (g_strrstr (editor_cmd, "vim") != NULL &&
-           ((position = e_content_editor_get_caret_position (cnt_editor)) > 0)) {
+           eed->cursor_position > 0) {
                gchar *tmp = editor_cmd;
                gint lineno;
                gboolean set_nofork;
 
                set_nofork = g_strrstr (editor_cmd, "gvim") != NULL;
 
-               offset = e_content_editor_get_caret_offset (cnt_editor);
-               /* Increment by 1 so that entering vim insert mode places you
-                * in the same entry position you were at in the html. */
-               offset++;
-
                /* calculate the line number that the cursor is in */
-               lineno = numlines (content, position);
+               lineno = numlines (eed->content, eed->cursor_position);
 
+               /* Increment by 1 so that entering vim insert mode places you
+                * in the same entry position you were at in the html. */
                editor_cmd = g_strdup_printf (
                        "%s \"+call cursor(%d,%d)\"%s%s",
-                       tmp, lineno, offset,
+                       tmp, lineno, eed->cursor_offset + 1,
                        set_nofork ? " " : "",
                        set_nofork ? "--nofork" : "");
 
                g_free (tmp);
        }
 
-       g_free (content);
-
        editor_cmd_line = g_strconcat (editor_cmd, " ", filename, NULL);
 
        if (!g_spawn_command_line_sync (editor_cmd_line, NULL, NULL, &status, NULL)) {
@@ -347,7 +357,7 @@ external_editor_thread (gpointer user_data)
                g_warning ("Unable to launch %s: ", editor_cmd_line);
 
                data = g_new0 (struct run_error_dialog_data, 1);
-               data->composer = composer;
+               data->composer = g_object_ref (eed->composer);
                data->text = "org.gnome.evolution.plugins.external-editor:editor-not-launchable";
 
                /* run_error_dialog also calls enable_composer */
@@ -367,25 +377,19 @@ external_editor_thread (gpointer user_data)
        if (status) {
 #endif
                d (printf ("\n\nsome problem here with external editor\n\n"));
-               g_idle_add ((GSourceFunc) enable_composer, composer);
+               g_idle_add (enable_composer_idle, g_object_ref (eed->composer));
                goto finished;
        } else {
                gchar *buf;
 
                if (g_file_get_contents (filename, &buf, NULL, NULL)) {
-                       gchar *htmltext;
-                       GArray *array;
-
-                       htmltext = camel_text_to_html (
-                               buf, CAMEL_MIME_FILTER_TOHTML_PRE, 0);
+                       struct ExternalEditorData *eed2;
 
-                       array = g_array_sized_new (
-                               TRUE, TRUE,
-                               sizeof (gpointer), 2 * sizeof (gpointer));
-                       array = g_array_append_val (array, composer);
-                       array = g_array_append_val (array, htmltext);
+                       eed2 = g_new0 (struct ExternalEditorData, 1);
+                       eed2->composer = g_object_ref (eed->composer);
+                       eed2->content =  camel_text_to_html (buf, CAMEL_MIME_FILTER_TOHTML_PRE, 0);
 
-                       g_idle_add ((GSourceFunc) update_composer_text, array);
+                       g_idle_add ((GSourceFunc) update_composer_text, eed2);
 
                        /* We no longer need that temporary file */
                        if (g_remove (filename) == -1)
@@ -401,11 +405,16 @@ finished:
        external_editor_running = FALSE;
        g_mutex_unlock (&external_editor_running_lock);
 
+       g_clear_object (&eed->composer);
+       g_free (eed->content);
+       g_free (eed);
+
        return NULL;
 }
 
 static void launch_editor (GtkAction *action, EMsgComposer *composer)
 {
+       struct ExternalEditorData *eed;
        EHTMLEditor *editor;
        EContentEditor *cnt_editor;
 
@@ -426,8 +435,17 @@ static void launch_editor (GtkAction *action, EMsgComposer *composer)
        external_editor_running = TRUE;
        g_mutex_unlock (&external_editor_running_lock);
 
-       editor_thread = g_thread_new (
-               NULL, external_editor_thread, composer);
+       eed = g_new0 (struct ExternalEditorData, 1);
+       eed->composer = g_object_ref (composer);
+       eed->content = e_content_editor_get_content (cnt_editor,
+               E_CONTENT_EDITOR_GET_TEXT_PLAIN |
+               E_CONTENT_EDITOR_GET_PROCESSED,
+               NULL, NULL);
+       eed->cursor_position = e_content_editor_get_caret_position (cnt_editor);
+       if (eed->cursor_position > 0)
+               eed->cursor_offset = e_content_editor_get_caret_offset (cnt_editor);
+
+       editor_thread = g_thread_new (NULL, external_editor_thread, eed);
        g_thread_unref (editor_thread);
 }
 


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