[evolution/449-support-markdown-in-composer] EHTMLEditor: Properly update sensitivity of HTML actions & bindings after open

[Milan Crha <mcrha src gnome org>]

commit 068b3197304e81cf6f9bd01657bd2dbd3002f396
Author: Milan Crha <mcrha redhat com>
Date:   Wed Feb 9 17:53:19 2022 +0100

    EHTMLEditor: Properly update sensitivity of HTML actions & bindings after open

 src/e-util/e-html-editor-actions.c | 25 +++++++++++++++++++++++--
 src/e-util/e-html-editor.c         |  4 ++++
 2 files changed, 27 insertions(+), 2 deletions(-)
---
diff --git a/src/e-util/e-html-editor-actions.c b/src/e-util/e-html-editor-actions.c
index 797ad6ee44..aa6f664597 100644
--- a/src/e-util/e-html-editor-actions.c
+++ b/src/e-util/e-html-editor-actions.c
@@ -2339,6 +2339,25 @@ e_html_editor_indent_level_to_bool_unindent_cb (GBinding *binding,
        return TRUE;
 }
 
+static gboolean
+e_html_editor_sensitize_html_actions_cb (GBinding *binding,
+                                        const GValue *from_value,
+                                        GValue *to_value,
+                                        gpointer user_data)
+{
+       /* It should be editable... */
+       if (g_value_get_boolean (from_value)) {
+               EHTMLEditor *editor = user_data;
+
+               /* ... and in the HTML mode */
+               g_value_set_boolean (to_value, e_html_editor_get_mode (editor) == E_CONTENT_EDITOR_MODE_HTML);
+       } else {
+               g_value_set_boolean (to_value, FALSE);
+       }
+
+       return TRUE;
+}
+
 /**
  * e_html_editor_util_new_mode_combobox:
  *
@@ -2492,10 +2511,12 @@ e_html_editor_actions_bind (EHTMLEditor *editor)
                cnt_editor, "editable",
                editor->priv->core_editor_actions, "sensitive",
                G_BINDING_SYNC_CREATE));
-       rb (e_binding_bind_property (
+       rb (e_binding_bind_property_full (
                cnt_editor, "editable",
                editor->priv->html_actions, "sensitive",
-               G_BINDING_SYNC_CREATE));
+               G_BINDING_SYNC_CREATE,
+               e_html_editor_sensitize_html_actions_cb,
+               NULL, editor, NULL));
        rb (e_binding_bind_property (
                cnt_editor, "editable",
                editor->priv->spell_check_actions, "sensitive",
diff --git a/src/e-util/e-html-editor.c b/src/e-util/e-html-editor.c
index 07767f54e9..91fca9b100 100644
--- a/src/e-util/e-html-editor.c
+++ b/src/e-util/e-html-editor.c
@@ -1240,6 +1240,10 @@ e_html_editor_content_editor_initialized (EContentEditor *content_editor,
        /* Synchronize widget mode with the buttons */
        e_html_editor_set_mode (html_editor, E_CONTENT_EDITOR_MODE_HTML);
 
+       /* Make sure the actions did bind, even when the content editor did not change */
+       e_html_editor_actions_unbind (html_editor);
+       e_html_editor_actions_bind (html_editor);
+
        g_object_set (G_OBJECT (content_editor),
                "halign", GTK_ALIGN_FILL,
                "hexpand", TRUE,