/**
* webkit_web_back_forward_list_set_limit:
* @web_back_forward_list: a #WebKitWebBackForwardList
* @limit: the limit to set the back forward list to
*
* Sets the maximum limit of the back forward list. If the back forward list
* exceeds its capacity, items will be removed everytime a new item has been
* added.
*/
void webkit_web_back_forward_list_set_limit(WebKitWebBackForwardList* webBackForwardList, gint limit)
{
g_return_if_fail(WEBKIT_IS_WEB_BACK_FORWARD_LIST(webBackForwardList));
WebCore::BackForwardList* backForwardList = core(webBackForwardList);
if (backForwardList)
backForwardList->setCapacity(limit);
}
/**
* webkit_web_back_forward_list_go_back:
* @web_back_forward_list: a #WebKitWebBackForwardList
*
* Steps backward in the back forward list
*/
void webkit_web_back_forward_list_go_back(WebKitWebBackForwardList* webBackForwardList)
{
g_return_if_fail(WEBKIT_IS_WEB_BACK_FORWARD_LIST(webBackForwardList));
WebCore::BackForwardList* backForwardList = core(webBackForwardList);
if (backForwardList->enabled())
backForwardList->goBack();
}
/**
* webkit_web_back_forward_list_add_item:
* @web_back_forward_list: a #WebKitWebBackForwardList
* @history_item: the #WebKitWebHistoryItem to add
*
* Adds the item to the #WebKitWebBackForwardList.
*/
void webkit_web_back_forward_list_add_item(WebKitWebBackForwardList *webBackForwardList, WebKitWebHistoryItem *webHistoryItem)
{
g_return_if_fail(WEBKIT_IS_WEB_BACK_FORWARD_LIST(webBackForwardList));
WebCore::BackForwardList* backForwardList = core(webBackForwardList);
WebCore::HistoryItem* historyItem = core(webHistoryItem);
backForwardList->addItem(historyItem);
}
/**
* webkit_web_back_forward_list_get_limit:
* @web_back_forward_list: a #WebKitWebBackForwardList
*
* Returns the maximum limit of the back forward list.
*
* Return value: a #gint indicating the number of #WebHistoryItem the back forward list can hold
*/
gint webkit_web_back_forward_list_get_limit(WebKitWebBackForwardList* webBackForwardList)
{
g_return_val_if_fail(WEBKIT_IS_WEB_BACK_FORWARD_LIST(webBackForwardList), 0);
WebCore::BackForwardList* backForwardList = core(webBackForwardList);
if (!backForwardList || !backForwardList->enabled())
return 0;
return backForwardList->capacity();
}
/**
* webkit_web_back_forward_list_go_to_item:
* @web_back_forward_list: a #WebKitWebBackForwardList
* @history_item: the #WebKitWebHistoryItem to go to
*
* Go to the specified @web_history_item in the back forward list
*/
void webkit_web_back_forward_list_go_to_item(WebKitWebBackForwardList* webBackForwardList, WebKitWebHistoryItem* webHistoryItem)
{
g_return_if_fail(WEBKIT_IS_WEB_BACK_FORWARD_LIST(webBackForwardList));
g_return_if_fail(WEBKIT_IS_WEB_HISTORY_ITEM(webHistoryItem));
WebCore::HistoryItem* historyItem = core(webHistoryItem);
WebCore::BackForwardList* backForwardList = core(webBackForwardList);
if (backForwardList->enabled() && historyItem)
backForwardList->goToItem(historyItem);
}
/**
* webkit_web_back_forward_list_get_nth_item:
* @web_back_forward_list: a #WebKitWebBackForwardList
* @index: the index of the item
*
* Returns the item at a given index relative to the current item.
*
* Return value: the #WebKitWebHistoryItem located at the specified index relative to the current item
*/
WebKitWebHistoryItem* webkit_web_back_forward_list_get_nth_item(WebKitWebBackForwardList* webBackForwardList, gint index)
{
g_return_val_if_fail(WEBKIT_IS_WEB_BACK_FORWARD_LIST(webBackForwardList), NULL);
WebCore::BackForwardList* backForwardList = core(webBackForwardList);
if (!backForwardList)
return NULL;
WebCore::HistoryItem* historyItem = backForwardList->itemAtIndex(index);
return (historyItem ? kit(historyItem) : NULL);
}
/**
* webkit_web_back_forward_list_get_forward_item:
* @web_back_forward_list: a #WebKitWebBackForwardList
*
* Returns the item that succeeds the current item.
*
* Returns a NULL value if there nothing that succeeds the current item
*
* Return value: a #WebKitWebHistoryItem
*/
WebKitWebHistoryItem* webkit_web_back_forward_list_get_forward_item(WebKitWebBackForwardList* webBackForwardList)
{
g_return_val_if_fail(WEBKIT_IS_WEB_BACK_FORWARD_LIST(webBackForwardList), NULL);
WebCore::BackForwardList* backForwardList = core(webBackForwardList);
if (!backForwardList || !backForwardList->enabled())
return NULL;
WebCore::HistoryItem* historyItem = backForwardList->forwardItem();
return (historyItem ? kit(historyItem) : NULL);
}
/**
* webkit_web_back_forward_list_contains_item:
* @web_back_forward_list: a #WebKitWebBackForwardList
* @history_item: the #WebKitWebHistoryItem to check
*
* Checks if @web_history_item is in the back forward list
*
* Return: %TRUE if @web_history_item is in the back forward list, %FALSE if it doesn't
*/
gboolean webkit_web_back_forward_list_contains_item(WebKitWebBackForwardList* webBackForwardList, WebKitWebHistoryItem* webHistoryItem)
{
g_return_val_if_fail(WEBKIT_IS_WEB_BACK_FORWARD_LIST(webBackForwardList), FALSE);
g_return_val_if_fail(WEBKIT_IS_WEB_HISTORY_ITEM(webHistoryItem), FALSE);
WebCore::HistoryItem* historyItem = core(webHistoryItem);
g_return_val_if_fail(historyItem != NULL, FALSE);
WebCore::BackForwardList* backForwardList = core(webBackForwardList);
return (backForwardList->enabled() ? backForwardList->containsItem(historyItem) : FALSE);
}
/**
* webkit_web_back_forward_list_get_back_list_with_limit:
* @web_back_forward_list: a #WebKitWebBackForwardList
* @limit: the number of items to retrieve
*
* Returns a list of items that precede the current item, limited by @limit
*
* Return value: a #GList of items preceding the current item, limited by @limit
*/
GList* webkit_web_back_forward_list_get_back_list_with_limit(WebKitWebBackForwardList* webBackForwardList, gint limit)
{
g_return_val_if_fail(WEBKIT_IS_WEB_BACK_FORWARD_LIST(webBackForwardList), NULL);
WebCore::BackForwardList* backForwardList = core(webBackForwardList);
if (!backForwardList || !backForwardList->enabled())
return NULL;
WebCore::HistoryItemVector items;
GList* backItems = { 0 };
backForwardList->backListWithLimit(limit, items);
for (unsigned i = 0; i < items.size(); i++) {
WebKitWebHistoryItem* webHistoryItem = webkit_web_history_item_new_with_core_item(items[i].get());
backItems = g_list_prepend(backItems, g_object_ref(webHistoryItem));
}
return g_list_reverse(backItems);
}
/*!
Clears the history.
\sa count(), items()
*/
void QWebHistory::clear()
{
//shortcut to private BackForwardList
WebCore::BackForwardList* lst = d->lst;
//clear visited links
WebCore::Page* page = static_cast<WebCore::BackForwardListImpl*>(lst)->page();
if (page && page->groupPtr())
page->groupPtr()->removeVisitedLinks();
//if count() == 0 then just return
if (!lst->entries().size())
return;
RefPtr<WebCore::HistoryItem> current = lst->currentItem();
int capacity = lst->capacity();
lst->setCapacity(0);
lst->setCapacity(capacity); //revert capacity
lst->addItem(current.get()); //insert old current item
lst->goToItem(current.get()); //and set it as current again
d->page()->updateNavigationActions();
}
static void WebHistoryClose(JNIEnv* env, jobject obj, jint frame)
{
LOG_ASSERT(frame, "Close needs a valid Frame pointer!");
WebCore::Frame* pFrame = (WebCore::Frame*)frame;
WebCore::BackForwardList* list = pFrame->page()->backForwardList();
RefPtr<WebCore::HistoryItem> current = list->currentItem();
// Remove each item instead of using close(). close() is intended to be used
// right before the list is deleted.
WebCore::HistoryItemVector& entries = list->entries();
int size = entries.size();
for (int i = size - 1; i >= 0; --i)
list->removeItem(entries[i].get());
// Add the current item back to the list.
if (current) {
current->setBridge(0);
// addItem will update the children to match the newly created bridge
list->addItem(current);
/*
* The Grand Prix site uses anchor navigations to change the display.
* WebKit tries to be smart and not load child frames that have the
* same history urls during an anchor navigation. This means that the
* current history item stored in the child frame's loader does not
* match the item found in the history tree. If we remove all the
* entries in the back/foward list, we have to restore the entire tree
* or else a HistoryItem might have a deleted parent.
*
* In order to restore the history tree correctly, we have to look up
* all the frames first and then look up the history item. We do this
* because the history item in the tree may be null at this point.
* Unfortunately, a HistoryItem can only search its immediately
* children so we do a breadth-first rebuild of the tree.
*/
// Keep a small list of child frames to traverse.
WTF::Vector<WebCore::Frame*> frameQueue;
// Fix the top-level item.
pFrame->loader()->history()->setCurrentItem(current.get());
WebCore::Frame* child = pFrame->tree()->firstChild();
// Remember the parent history item so we can search for a child item.
RefPtr<WebCore::HistoryItem> parent = current;
while (child) {
// Use the old history item since the current one may have a
// deleted parent.
WebCore::HistoryItem* item = parent->childItemWithTarget(child->tree()->name());
child->loader()->history()->setCurrentItem(item);
// Append the first child to the queue if it exists. If there is no
// item, then we do not need to traverse the children since there
// will be no parent history item.
WebCore::Frame* firstChild;
if (item && (firstChild = child->tree()->firstChild()))
frameQueue.append(firstChild);
child = child->tree()->nextSibling();
// If we don't have a sibling for this frame and the queue isn't
// empty, use the next entry in the queue.
if (!child && !frameQueue.isEmpty()) {
child = frameQueue.at(0);
frameQueue.remove(0);
// Figure out the parent history item used when searching for
// the history item to use.
parent = child->tree()->parent()->loader()->history()->currentItem();
}
}
}
}
