Remove all references to JavaScriptCore and use of JavaScript

JavaScript is disabled in EWebView, so any attempt to evaluate
a JavaScript code will fail. We are using DOM bindings
instead to interact with the document.

This commit removes some helper functions created in the early
days of WebKit port which are not used anymore and also fixes
mail-to-task plugin, which was relying on some JavaScript.

3 files changed, 66 insertions, 23 deletions

diff --git a/mail/Makefile.am b/mail/Makefile.am
index 09c274aad7..3cc30971f7 100644
--- a/mail/Makefile.am
+++ b/mail/Makefile.am
@@ -23,7 +23,6 @@ libevolution_mail_la_CPPFLAGS =				\
 	$(CANBERRA_CFLAGS)				\
 	$(CLUTTER_CFLAGS)				\
 	$(GTKHTML_CFLAGS)                               \
-	$(JAVASCRIPTCORE_CFLAGS)			\
 	$(LIBSOUP_CFLAGS)				\
 	-DEVOLUTION_DATADIR=\""$(datadir)"\"		\
 	-DEVOLUTION_PRIVDATADIR=\""$(privdatadir)"\"	\
@@ -228,7 +227,6 @@ libevolution_mail_la_LIBADD =				\
 	$(CANBERRA_LIBS)				\
 	$(CLUTTER_LIBS)					\
 	$(GTKHTML_LIBS)					\
-	$(JAVASCRIPTCORE_CFLAGS)			\
 	$(E_WIDGETS_LIBS)				\
 	$(SMIME_LIBS)					\
 	$(LIBSOUP_LIBS)					\
diff --git a/mail/e-mail-display.c b/mail/e-mail-display.c
index ac98b06e5a..2ca422c353 100644
--- a/mail/e-mail-display.c
+++ b/mail/e-mail-display.c
@@ -49,8 +49,6 @@
 
 #include <camel/camel.h>
 
-#include <JavaScriptCore/JavaScript.h>
-
 #define d(x)
 
 G_DEFINE_TYPE (
@@ -1832,32 +1830,80 @@ e_mail_display_set_status (EMailDisplay *display,
 	gtk_widget_show_all (GTK_WIDGET (display));
 }
 
+
+static gchar *
+mail_display_get_frame_selection_text (WebKitDOMElement *iframe)
+{
+	WebKitDOMDocument *document;
+	WebKitDOMDOMWindow *window;
+	WebKitDOMDOMSelection *selection;
+	WebKitDOMNodeList *frames;
+	gulong ii, length;
+
+	document = webkit_dom_html_iframe_element_get_content_document (
+			WEBKIT_DOM_HTML_IFRAME_ELEMENT (iframe));
+	window = webkit_dom_document_get_default_view (document);
+	selection = webkit_dom_dom_window_get_selection (window);
+	if (selection && (webkit_dom_dom_selection_get_range_count (selection) > 0)) {
+		WebKitDOMRange *range;
+
+		range = webkit_dom_dom_selection_get_range_at (selection, 0, NULL);
+		if (range) {
+			return webkit_dom_range_to_string (range, NULL);
+		}
+	}
+
+	frames = webkit_dom_document_get_elements_by_tag_name (
+			document, "IFRAME");
+	length = webkit_dom_node_list_get_length (frames);
+	for (ii = 0; ii < length; ii++) {
+		WebKitDOMNode *node;
+		gchar *text;
+
+		node = webkit_dom_node_list_item (frames, ii);
+
+		text = mail_display_get_frame_selection_text (
+				WEBKIT_DOM_ELEMENT (node));
+
+		if (text) {
+			return text;
+		}
+	}
+
+	return NULL;
+}
+
 gchar *
-e_mail_display_get_selection_plain_text (EMailDisplay *display,
-                                         gint *len)
+e_mail_display_get_selection_plain_text (EMailDisplay *display)
 {
-	EWebView *web_view;
-	WebKitWebFrame *frame;
-	const gchar *frame_name;
-	GValue value = {0};
-	GType type;
-	const gchar *str;
+	WebKitDOMDocument *document;
+	WebKitDOMNodeList *frames;
+	gulong ii, length;
 
 	g_return_val_if_fail (E_IS_MAIL_DISPLAY (display), NULL);
 
-	web_view = E_WEB_VIEW (display);
-	frame = webkit_web_view_get_focused_frame (WEBKIT_WEB_VIEW (web_view));
-	frame_name = webkit_web_frame_get_name (frame);
+	if (!webkit_web_view_has_selection (WEBKIT_WEB_VIEW (display)))
+		return NULL;
+
+	document = webkit_web_view_get_dom_document (WEBKIT_WEB_VIEW (display));
+	frames = webkit_dom_document_get_elements_by_tag_name (document, "IFRAME");
+	length = webkit_dom_node_list_get_length (frames);
 
-	type = e_web_view_frame_exec_script (web_view, frame_name, "window.getSelection().toString()", &value);
-	g_return_val_if_fail (type == G_TYPE_STRING, NULL);
+	for (ii = 0; ii < length; ii++) {
+		gchar *text;
+		WebKitDOMNode *node;
 
-	str = g_value_get_string (&value);
+		node = webkit_dom_node_list_item (frames, ii);
 
-	if (len)
-		*len = strlen (str);
+		text = mail_display_get_frame_selection_text (
+				WEBKIT_DOM_ELEMENT (node));
 
-	return g_strdup (str);
+		if (text) {
+			return text;
+		}
+	}
+
+	return NULL;
 }
 
 void
diff --git a/mail/e-mail-display.h b/mail/e-mail-display.h
index e19895623a..48c16f36a2 100644
--- a/mail/e-mail-display.h
+++ b/mail/e-mail-display.h
@@ -95,8 +95,7 @@ void			e_mail_display_set_status	(EMailDisplay *display,
 							 const gchar *status);
 
 gchar *			e_mail_display_get_selection_plain_text
-							(EMailDisplay *display,
-							 gint *len);
+							(EMailDisplay *display);
 
 void                    e_mail_display_load_images      (EMailDisplay *display);