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.

2 files changed, 6 insertions, 230 deletions

diff --git a/widgets/misc/e-web-view.c b/widgets/misc/e-web-view.c
index ddac836f26..b1d726dab6 100644
--- a/widgets/misc/e-web-view.c
+++ b/widgets/misc/e-web-view.c
@@ -24,8 +24,6 @@
 
 #include <math.h>
 
-#include <JavaScriptCore/JavaScript.h>
-
 #include <string.h>
 #include <glib/gi18n-lib.h>
 #include <pango/pango.h>
@@ -61,8 +59,6 @@ struct _EWebViewPrivate {
 	GdkPixbufAnimation *cursor_image;
 	gchar *cursor_image_src;
 
-	GHashTable *js_callbacks;
-
         GSList *highlights;
 
 	GtkAction *open_proxy;
@@ -807,11 +803,6 @@ web_view_dispose (GObject *object)
 		priv->cursor_image_src = NULL;
 	}
 
-	if (priv->js_callbacks != NULL) {
-		g_hash_table_destroy (priv->js_callbacks);
-		priv->js_callbacks = NULL;
-	}
-
 	if (priv->highlights != NULL) {
 		g_slist_free_full (priv->highlights, g_free);
 		priv->highlights = NULL;
@@ -1739,9 +1730,6 @@ e_web_view_init (EWebView *web_view)
 	ui_manager = gtk_ui_manager_new ();
 	web_view->priv->ui_manager = ui_manager;
 
-	web_view->priv->js_callbacks = g_hash_table_new_full (g_str_hash, g_str_equal,
-		(GDestroyNotify) g_free, NULL);
-
 	g_signal_connect_swapped (
 		ui_manager, "connect-proxy",
 		G_CALLBACK (web_view_connect_proxy_cb), web_view);
@@ -2008,214 +1996,16 @@ e_web_view_frame_get_uri (EWebView *web_view,
 gchar *
 e_web_view_get_html (EWebView *web_view)
 {
-	GValue html = {0};
+	WebKitDOMDocument *document;
+	WebKitDOMElement *element;
 
 	g_return_val_if_fail (E_IS_WEB_VIEW (web_view), NULL);
 
-	if (e_web_view_exec_script (web_view, "return document.documentElement.innerHTML;", &html) == G_TYPE_STRING)
-		return g_strdup (g_value_get_string (&html));
-	else
-		return NULL;
-}
-
-JSGlobalContextRef
-e_web_view_get_global_context (EWebView *web_view)
-{
-	WebKitWebFrame *main_frame;
-
-	g_return_val_if_fail (E_IS_WEB_VIEW (web_view), 0);
-
-	main_frame = webkit_web_view_get_main_frame (WEBKIT_WEB_VIEW (web_view));
-	return webkit_web_frame_get_global_context (main_frame);
-}
-
-GType
-e_web_view_exec_script (EWebView *web_view,
-                        const gchar *script,
-                        GValue *value)
-{
-	WebKitWebFrame *main_frame;
-
-	g_return_val_if_fail (E_IS_WEB_VIEW (web_view), G_TYPE_INVALID);
-	g_return_val_if_fail (script != NULL, G_TYPE_INVALID);
-
-	main_frame = webkit_web_view_get_main_frame (WEBKIT_WEB_VIEW (web_view));
-
-	return e_web_view_frame_exec_script (web_view,
-		webkit_web_frame_get_name (main_frame),
-		script, value);
-}
-
-GType
-e_web_view_frame_exec_script (EWebView *web_view,
-                              const gchar *frame_name,
-                              const gchar *script,
-                              GValue *value)
-{
-	WebKitWebFrame *main_frame, *frame;
-	JSGlobalContextRef context;
-	JSValueRef js_value, error = NULL;
-	JSType js_type;
-	JSStringRef js_script;
-	JSStringRef js_str;
-	size_t str_len;
-	gchar *str;
-
-	g_return_val_if_fail (E_IS_WEB_VIEW (web_view), G_TYPE_INVALID);
-	g_return_val_if_fail (script != NULL, G_TYPE_INVALID);
-
-	main_frame = webkit_web_view_get_main_frame (WEBKIT_WEB_VIEW (web_view));
-	frame = webkit_web_frame_find_frame (main_frame, frame_name);
-
-	context = webkit_web_frame_get_global_context (frame);
-
-	js_script = JSStringCreateWithUTF8CString (script);
-	js_value = JSEvaluateScript (context, js_script, NULL, NULL, 0, &error);
-	JSStringRelease (js_script);
-
-	if (error) {
-		gchar *msg;
-		js_str = JSValueToStringCopy (context, error, NULL);
-		str_len = JSStringGetLength (js_str);
-
-		msg = g_malloc (str_len + 1);
-		JSStringGetUTF8CString (js_str, msg, str_len + 1);
-		JSStringRelease (js_str);
-
-		g_message ("JavaScript Execution Failed: %s", msg);
-		g_free (msg);
-
-		return G_TYPE_INVALID;
-	}
-
-	if (!value)
-		return G_TYPE_NONE;
-
-	js_type = JSValueGetType (context, js_value);
-	switch (js_type) {
-		case kJSTypeBoolean:
-			g_value_init (value, G_TYPE_BOOLEAN);
-			g_value_set_boolean (value, JSValueToBoolean (context, js_value));
-			break;
-		case kJSTypeNumber:
-			g_value_init (value, G_TYPE_DOUBLE);
-			g_value_set_double (value, JSValueToNumber (context, js_value, NULL));
-			break;
-		case kJSTypeString:
-			js_str = JSValueToStringCopy (context, js_value, NULL);
-			str_len = JSStringGetLength (js_str);
-			str = g_malloc (str_len + 1);
-			JSStringGetUTF8CString (js_str, str, str_len + 1);
-			JSStringRelease (js_str);
-			g_value_init (value, G_TYPE_STRING);
-			g_value_set_string (value, str);
-			g_free (str);
-			break;
-		case kJSTypeObject:
-			g_value_init (value, G_TYPE_OBJECT);
-			g_value_set_object (value, JSValueToObject (context, js_value, NULL));
-			break;
-		case kJSTypeNull:
-			g_value_init (value, G_TYPE_POINTER);
-			g_value_set_pointer (value, NULL);
-			break;
-		case kJSTypeUndefined:
-			break;
-	}
-
-	return G_VALUE_TYPE (value);
-}
-
-static JSValueRef
-web_view_handle_js_callback (JSContextRef ctx,
-                             JSObjectRef function,
-                             JSObjectRef this_object,
-                             size_t argument_count,
-                             const JSValueRef arguments[],
-                             JSValueRef *exception)
-{
-	gpointer web_view;
-	gpointer user_data;
-	gchar *fnc_name;
-	size_t fnc_name_len;
-
-	EWebViewJSFunctionCallback callback;
-
-	JSStringRef js_webview_prop = JSStringCreateWithUTF8CString ("webview");
-	JSStringRef js_userdata_prop = JSStringCreateWithUTF8CString ("user-data");
-	JSStringRef js_fncname_prop = JSStringCreateWithUTF8CString ("fnc-name");
-	JSStringRef js_fncname_str;
-
-	JSValueRef js_webview = JSObjectGetProperty (ctx, function, js_webview_prop, NULL);
-	JSValueRef js_userdata = JSObjectGetProperty (ctx, function, js_userdata_prop, NULL);
-	JSValueRef js_fncname = JSObjectGetProperty (ctx, function, js_fncname_prop, NULL);
-
-	web_view = GINT_TO_POINTER ((gint) JSValueToNumber (ctx, js_webview, NULL));
-	user_data = GINT_TO_POINTER ((gint) JSValueToNumber (ctx, js_userdata, NULL));
-	js_fncname_str = JSValueToStringCopy (ctx, js_fncname, NULL);
-	fnc_name_len = JSStringGetLength (js_fncname_str);
-
-	g_return_val_if_fail (E_IS_WEB_VIEW (web_view), 0);
-
-	/* Convert fncname to gchar* and lookup the callback in hashtable */
-	fnc_name = g_malloc (fnc_name_len + 1);
-	JSStringGetUTF8CString (js_fncname_str, fnc_name, fnc_name_len + 1);
-	callback = g_hash_table_lookup (E_WEB_VIEW (web_view)->priv->js_callbacks, fnc_name);
-
-	g_return_val_if_fail (callback != NULL, 0);
-
-	/* Call the callback function */
-	callback (E_WEB_VIEW (web_view), argument_count, arguments, user_data);
-
-	JSStringRelease (js_fncname_str);
-	JSStringRelease (js_fncname_prop);
-	JSStringRelease (js_webview_prop);
-	JSStringRelease (js_userdata_prop);
-
-	g_free (fnc_name);
-
-	return 0;
-}
-
-void
-e_web_view_install_js_callback (EWebView *web_view,
-                                const gchar *fnc_name,
-                                EWebViewJSFunctionCallback callback,
-                                gpointer user_data)
-{
-	WebKitWebFrame *frame;
-	JSGlobalContextRef ctx;
-	JSObjectRef global_obj, js_func;
-	JSStringRef js_fnc_name, js_webview_prop, js_userdata_prop, js_fncname_prop;
+	document = webkit_web_view_get_dom_document (WEBKIT_WEB_VIEW (web_view));
+	element = webkit_dom_document_get_document_element (document);
 
-	g_return_if_fail (E_IS_WEB_VIEW (web_view));
-	g_return_if_fail (fnc_name != NULL);
-	g_return_if_fail (callback != NULL);
-
-	frame = webkit_web_view_get_main_frame (WEBKIT_WEB_VIEW (web_view));
-	ctx = webkit_web_frame_get_global_context (frame);
-	global_obj = JSContextGetGlobalObject (ctx);
-	js_fnc_name = JSStringCreateWithUTF8CString (fnc_name);
-	js_func = JSObjectMakeFunctionWithCallback (ctx, NULL,
-		(JSObjectCallAsFunctionCallback) web_view_handle_js_callback);
-	js_webview_prop = JSStringCreateWithUTF8CString ("webview");
-	js_userdata_prop = JSStringCreateWithUTF8CString ("user-data");
-	js_fncname_prop = JSStringCreateWithUTF8CString ("fnc-name");
-
-	/* Set some properties to the function */
-	JSObjectSetProperty (ctx, js_func, js_webview_prop, JSValueMakeNumber (ctx, GPOINTER_TO_INT (web_view)), 0, NULL);
-	JSObjectSetProperty (ctx, js_func, js_userdata_prop, JSValueMakeNumber (ctx, GPOINTER_TO_INT (user_data)), 0, NULL);
-	JSObjectSetProperty (ctx, js_func, js_fncname_prop, JSValueMakeString (ctx, js_fnc_name), 0, NULL);
-
-	/* Set the function as a property of global object */
-	JSObjectSetProperty (ctx, global_obj, js_fnc_name, js_func, 0, NULL);
-
-	JSStringRelease (js_fncname_prop);
-	JSStringRelease (js_userdata_prop);
-	JSStringRelease (js_webview_prop);
-	JSStringRelease (js_fnc_name);
-
-	g_hash_table_insert (web_view->priv->js_callbacks, g_strdup (fnc_name), callback);
+	return webkit_dom_html_element_get_outer_html (
+			WEBKIT_DOM_HTML_ELEMENT (element));
 }
 
 gboolean
diff --git a/widgets/misc/e-web-view.h b/widgets/misc/e-web-view.h
index 66e65c2df5..bb67a12404 100644
--- a/widgets/misc/e-web-view.h
+++ b/widgets/misc/e-web-view.h
@@ -28,7 +28,6 @@
 #define E_WEB_VIEW_H
 
 #include <webkit/webkit.h>
-#include <JavaScriptCore/JavaScript.h>
 
 /* Standard GObject macros */
 #define E_TYPE_WEB_VIEW \
@@ -125,19 +124,6 @@ void		e_web_view_frame_load_uri	(EWebView *web_view,
 						 const gchar *uri);
 const gchar *	e_web_view_frame_get_uri	(EWebView *web_view,
 						 const gchar *frame_name);
-JSGlobalContextRef
-		e_web_view_get_global_context	(EWebView *web_view);
-GType		e_web_view_exec_script		(EWebView *web_view,
-						 const gchar *script,
-						 GValue *value);
-GType		e_web_view_frame_exec_script	(EWebView *web_view,
-						 const gchar *frame_name,
-						 const gchar *script,
-						 GValue *value);
-void		e_web_view_install_js_callback  (EWebView *web_view,
-						 const gchar *fnc_name,
-						 EWebViewJSFunctionCallback callback,
-						 gpointer user_data);
 gchar *		e_web_view_get_html		(EWebView *web_view);
 gboolean	e_web_view_get_caret_mode	(EWebView *web_view);
 void		e_web_view_set_caret_mode	(EWebView *web_view,