private int on_before_browser(cef_extension_handler_t *self, cef_extension_t *extension, cef_browser_t *browser, cef_browser_t *active_browser, int index, cef_string_t *url, int active, cef_window_info_t *windowInfo, cef_client_t **client, cef_browser_settings_t *settings)
{
CheckSelf(self);
var m_extension = CefExtension.FromNative(extension);
var m_browser = CefBrowser.FromNativeOrNull(browser);
var m_activeBrowser = CefBrowser.FromNativeOrNull(active_browser);
var m_url = cef_string_t.ToString(url);
var m_active = active != 0;
var m_windowInfo = CefWindowInfo.FromNative(windowInfo);
var m_client = CefClient.FromNative(*client);
var m_settings = new CefBrowserSettings(settings);
var o_client = m_client;
var cancel = OnBeforeBrowser(m_extension, m_browser, m_activeBrowser, index, m_url, m_active, m_windowInfo, ref m_client, m_settings);
if (!cancel && ((object)o_client != m_client && m_client != null))
{
*client = m_client.ToNative();
}
m_windowInfo.Dispose();
m_settings.Dispose();
return(cancel ? 1 : 0);
}
private void on_extension_unloaded(cef_extension_handler_t *self, cef_extension_t *extension)
{
CheckSelf(self);
var mExtension = CefExtension.FromNative(extension);
OnExtensionUnloaded(mExtension);
}
private cef_browser_t *get_active_browser(cef_extension_handler_t *self, cef_extension_t *extension, cef_browser_t *browser, int include_incognito)
{
CheckSelf(self);
var m_extension = CefExtension.FromNative(extension);
var m_browser = CefBrowser.FromNative(browser);
var m_includeIncognito = include_incognito != 0;
var result = GetActiveBrowser(m_extension, m_browser, m_includeIncognito);
return(result != null?result.ToNative() : null);
}
private int can_access_browser(cef_extension_handler_t *self, cef_extension_t *extension, cef_browser_t *browser, int include_incognito, cef_browser_t *target_browser)
{
CheckSelf(self);
var m_extension = CefExtension.FromNative(extension);
var m_browser = CefBrowser.FromNativeOrNull(browser);
var m_includeIcognito = include_incognito != 0;
var m_targetBrowser = CefBrowser.FromNativeOrNull(target_browser);
var result = CanAccessBrowser(m_extension, m_browser, m_includeIcognito, m_targetBrowser);
return(result ? 1 : 0);
}
private int get_extension_resource(cef_extension_handler_t *self, cef_extension_t *extension, cef_browser_t *browser, cef_string_t *file, cef_get_extension_resource_callback_t *callback)
{
CheckSelf(self);
var m_extension = CefExtension.FromNative(extension);
var m_browser = CefBrowser.FromNativeOrNull(browser);
var m_file = cef_string_t.ToString(file);
var m_callback = CefGetExtensionResourceCallback.FromNativeOrNull(callback);
var handled = GetExtensionResource(m_extension, m_browser, m_file, m_callback);
if (!handled)
{
m_callback.Dispose();
}
return(handled ? 1 : 0);
}
private int on_before_background_browser(cef_extension_handler_t *self, cef_extension_t *extension, cef_string_t *url, cef_client_t **client, cef_browser_settings_t *settings)
{
CheckSelf(self);
var m_extension = CefExtension.FromNative(extension);
var m_url = cef_string_t.ToString(url);
var m_client = CefClient.FromNative(*client);
var m_settings = new CefBrowserSettings(settings);
var o_client = m_client;
var cancel = OnBeforeBackgroundBrowser(m_extension, m_url, ref m_client, m_settings);
if (!cancel && ((object)o_client != m_client && m_client != null))
{
*client = m_client.ToNative();
}
m_settings.Dispose();
return(cancel ? 1 : 0);
}
/// <summary>
/// Called after the CefExtension::Unload request has completed.
/// </summary>
protected virtual void OnExtensionUnloaded(CefExtension extension)
{
}
/// <summary>
/// Called to retrieve an extension resource that would normally be loaded from
/// disk (e.g. if a file parameter is specified to chrome.tabs.executeScript).
/// |extension| and |browser| are the source of the resource request. |file| is
/// the requested relative file path. To handle the resource request return
/// true and execute |callback| either synchronously or asynchronously. For the
/// default behavior which reads the resource from the extension directory on
/// disk return false. Localization substitutions will not be applied to
/// resources handled via this method.
/// </summary>
protected virtual bool GetExtensionResource(CefExtension extension, CefBrowser browser, string file, CefGetExtensionResourceCallback callback)
{
return(false);
}
/// <summary>
/// Called when the tabId associated with |target_browser| is specified to an
/// extension API call that accepts a tabId parameter (e.g. chrome.tabs.*).
/// |extension| and |browser| are the source of the API call. Return true
/// to allow access of false to deny access. Access to incognito browsers
/// should not be allowed unless the source extension has incognito access
/// enabled, in which case |include_incognito| will be true.
/// </summary>
protected virtual bool CanAccessBrowser(CefExtension extension, CefBrowser browser, bool includeIncognito, CefBrowser targetBrowser)
{
return(true);
}
/// <summary>
/// Called when no tabId is specified to an extension API call that accepts a
/// tabId parameter (e.g. chrome.tabs.*). |extension| and |browser| are the
/// source of the API call. Return the browser that will be acted on by the API
/// call or return NULL to act on |browser|. The returned browser must share
/// the same CefRequestContext as |browser|. Incognito browsers should not be
/// considered unless the source extension has incognito access enabled, in
/// which case |include_incognito| will be true.
/// </summary>
protected virtual CefBrowser GetActiveBrowser(CefExtension extension, CefBrowser browser, bool includeIncognito)
{
return(null);
}
/// <summary>
/// Called when an extension API (e.g. chrome.tabs.create) requests creation of
/// a new browser. |extension| and |browser| are the source of the API call.
/// |active_browser| may optionally be specified via the windowId property or
/// returned via the GetActiveBrowser() callback and provides the default
/// |client| and |settings| values for the new browser. |index| is the position
/// value optionally specified via the index property. |url| is the URL that
/// will be loaded in the browser. |active| is true if the new browser should
/// be active when opened. To allow creation of the browser optionally modify
/// |windowInfo|, |client| and |settings| and return false. To cancel creation
/// of the browser return true. Successful creation will be indicated by a call
/// to CefLifeSpanHandler::OnAfterCreated. Any modifications to |windowInfo|
/// will be ignored if |active_browser| is wrapped in a CefBrowserView.
/// </summary>
protected virtual bool OnBeforeBrowser(CefExtension extension, CefBrowser browser, CefBrowser activeBrowser, int index, string url, bool active, CefWindowInfo windowInfo, ref CefClient client, CefBrowserSettings settings)
{
return(false);
}
/// <summary>
/// Called when an extension needs a browser to host a background script
/// specified via the "background" manifest key. The browser will have no
/// visible window and cannot be displayed. |extension| is the extension that
/// is loading the background script. |url| is an internally generated
/// reference to an HTML page that will be used to load the background script
/// via a <script> src attribute. To allow creation of the browser optionally
/// modify |client| and |settings| and return false. To cancel creation of the
/// browser (and consequently cancel load of the background script) return
/// true. Successful creation will be indicated by a call to
/// CefLifeSpanHandler::OnAfterCreated, and CefBrowserHost::IsBackgroundHost
/// will return true for the resulting browser. See
/// https://developer.chrome.com/extensions/event_pages for more information
/// about extension background script usage.
/// </summary>
protected virtual bool OnBeforeBackgroundBrowser(CefExtension extension, string url, ref CefClient client, CefBrowserSettings settings)
{
return(false);
}
/// <summary>
/// Returns true if this object is the same extension as |that| object.
/// Extensions are considered the same if identifier, path and loader context
/// match.
/// </summary>
public bool IsSame(CefExtension that)
{
var n_that = that != null?that.ToNative() : null;
return(cef_extension_t.is_same(_self, n_that) != 0);
}
