WebView.addOnDecidePolicy

This signal is emitted when WebKit is requesting the client to decide a policy decision, such as whether to navigate to a page, open a new window or whether or not to download a resource. The #WebKitNavigationPolicyDecision passed in the @decision argument is a generic type, but should be casted to a more specific type when making the decision. For example:

<informalexample><programlisting> static gboolean decide_policy_cb (WebKitWebView *web_view, WebKitPolicyDecision *decision, WebKitPolicyDecisionType type) { switch (type) { case WEBKIT_POLICY_DECISION_TYPE_NAVIGATION_ACTION: { WebKitNavigationPolicyDecision *navigation_decision = WEBKIT_NAVIGATION_POLICY_DECISION (decision); /<!-- -->* Make a policy decision here. *<!-- -->/ break; } case WEBKIT_POLICY_DECISION_TYPE_NEW_WINDOW_ACTION: { WebKitNavigationPolicyDecision *navigation_decision = WEBKIT_NAVIGATION_POLICY_DECISION (decision); /<!-- -->* Make a policy decision here. *<!-- -->/ break; } case WEBKIT_POLICY_DECISION_TYPE_RESPONSE: WebKitResponsePolicyDecision *response = WEBKIT_RESPONSE_POLICY_DECISION (decision); /<!-- -->* Make a policy decision here. *<!-- -->/ break; default: /<!-- -->* Making no decision results in webkit_policy_decision_use(). *<!-- -->/ return FALSE; } return TRUE; } </programlisting></informalexample>

It is possible to make policy decision asynchronously, by simply calling g_object_ref() on the @decision argument and returning %TRUE to block the default signal handler. If the last reference is removed on a #WebKitPolicyDecision and no decision has been made explicitly, webkit_policy_decision_use() will be the default policy decision. The default signal handler will simply call webkit_policy_decision_use(). Only the first policy decision chosen for a given #WebKitPolicyDecision will have any affect.

class WebView
gulong
addOnDecidePolicy
(,
ConnectFlags connectFlags = cast(ConnectFlags)0
)

Return Value

Type: gulong

%TRUE to stop other handlers from being invoked for the event. %FALSE to propagate the event further.

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