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Add gjs_value_forall and gjs_get_nth_attribute

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This commit is contained in:
Christian Dywan 2008-07-21 20:04:54 +02:00
parent 6ebb81bf90
commit a1213c80d9
2 changed files with 76 additions and 1 deletions
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68
midori/gjs.c
View file

@ -230,13 +230,45 @@ gjs_value_get_attribute_string (GjsValue* value,
return gjs_value_get_string (attribute);
}
/**
* gjs_value_get_nth_attribute:
* @value: a #GjsValue
* @n: an index
*
* Retrieves the indiced attribute at the specified
* position. This is particularly faster than looking
* up attributes by name.
*
* This can only be used on object values.
*
* Return value: a new #GjsValue, or %NULL
**/
GjsValue*
gjs_value_get_nth_attribute (GjsValue* value,
guint n)
{
JSObjectRef js_object;
JSValueRef js_value;
g_return_val_if_fail (gjs_value_is_object (value), NULL);
js_object = JSValueToObject (value->js_context, value->js_value, NULL);
js_value = JSObjectGetPropertyAtIndex (value->js_context, js_object, n, NULL);
if (JSValueIsUndefined (value->js_context, js_value))
return NULL;
return gjs_value_new (value->js_context, js_value);
}
/**
* gjs_value_foreach:
* @value: a #GjsValue
* @callback: a callback
* @user_data: user data
*
* Runs the specified callback for each attribute of the value.
* Calls the specified callback for each indiced attribute.
* This is a particularly fast way of looping through the
* elements of an array.
*
* This can only be used on object values.
**/
@ -244,6 +276,40 @@ void
gjs_value_foreach (GjsValue* value,
GjsCallback callback,
gpointer user_data)
{
guint i;
GjsValue* attribute;
g_return_if_fail (gjs_value_is_object (value));
i = 0;
do
{
attribute = gjs_value_get_nth_attribute (value, i);
if (attribute)
{
callback (attribute, user_data);
g_object_unref (attribute);
}
i++;
}
while (attribute);
}
/**
* gjs_value_forall:
* @value: a #GjsValue
* @callback: a callback
* @user_data: user data
*
* Calls the specified callback for each attribute.
*
* This can only be used on object values.
**/
void
gjs_value_forall (GjsValue* value,
GjsCallback callback,
gpointer user_data)
{
JSObjectRef js_object;
JSPropertyNameArrayRef js_properties;

9
midori/gjs.h
View file

@ -66,6 +66,10 @@ const gchar*
gjs_value_get_attribute_string (GjsValue* value,
const gchar* name);
GjsValue*
gjs_value_get_nth_attribute (GjsValue* value,
guint n);
typedef void
(*GjsCallback) (GjsValue* value,
gpointer user_data);
@ -75,6 +79,11 @@ gjs_value_foreach (GjsValue* value,
GjsCallback callback,
gpointer user_data);
void
gjs_value_forall (GjsValue* value,
GjsCallback callback,
gpointer user_data);
GjsValue*
gjs_value_get_by_name (GjsValue* value,
const gchar* name);