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Diffstat (limited to 'netwerk/base/nsINetworkPredictor.idl')
| -rw-r--r-- | netwerk/base/nsINetworkPredictor.idl | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/netwerk/base/nsINetworkPredictor.idl b/netwerk/base/nsINetworkPredictor.idl new file mode 100644 index 000000000..1b6b9576b --- /dev/null +++ b/netwerk/base/nsINetworkPredictor.idl @@ -0,0 +1,165 @@ +/* vim: set ts=2 sts=2 et sw=2: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsISupports.idl" + +interface nsIURI; +interface nsILoadContext; +interface nsINetworkPredictorVerifier; + +typedef unsigned long PredictorPredictReason; +typedef unsigned long PredictorLearnReason; + +/** + * nsINetworkPredictor - learn about pages users visit, and allow us to take + * predictive actions upon future visits. + * NOTE: nsINetworkPredictor should only + * be used on the main thread. + */ +[scriptable, uuid(acc88e7c-3f39-42c7-ac31-6377c2c3d73e)] +interface nsINetworkPredictor : nsISupports +{ + /** + * Prediction reasons + * + * PREDICT_LINK - we are being asked to take predictive action because + * the user is hovering over a link. + * + * PREDICT_LOAD - we are being asked to take predictive action because + * the user has initiated a pageload. + * + * PREDICT_STARTUP - we are being asked to take predictive action + * because the browser is starting up. + */ + const PredictorPredictReason PREDICT_LINK = 0; + const PredictorPredictReason PREDICT_LOAD = 1; + const PredictorPredictReason PREDICT_STARTUP = 2; + + /** + * Start taking predictive actions + * + * Calling this will cause the predictor to (possibly) start + * taking actions such as DNS prefetch and/or TCP preconnect based on + * (1) the host name that we are given, and (2) the reason we are being + * asked to take actions. + * + * @param targetURI - The URI we are being asked to take actions based on. + * @param sourceURI - The URI that is currently loaded. This is so we can + * avoid doing predictive actions for link hover on an HTTPS page (for + * example). + * @param reason - The reason we are being asked to take actions. Can be + * any of the PREDICT_* values above. + * In the case of PREDICT_LINK, targetURI should be the URI of the link + * that is being hovered over, and sourceURI should be the URI of the page + * on which the link appears. + * In the case of PREDICT_LOAD, targetURI should be the URI of the page that + * is being loaded and sourceURI should be null. + * In the case of PREDICT_STARTUP, both targetURI and sourceURI should be + * null. + * @param loadContext - The nsILoadContext of the page load we are predicting + * about. + * @param verifier - An nsINetworkPredictorVerifier used in testing to ensure + * we're predicting the way we expect to. Not necessary (or desired) for + * normal operation. + */ + void predict(in nsIURI targetURI, + in nsIURI sourceURI, + in PredictorPredictReason reason, + in nsILoadContext loadContext, + in nsINetworkPredictorVerifier verifier); + + + /* + * Reasons we are learning something + * + * LEARN_LOAD_TOPLEVEL - we are learning about the toplevel resource of a + * pageload (NOTE: this should ONLY be used by tests) + * + * LEARN_LOAD_SUBRESOURCE - we are learning a subresource from a pageload + * + * LEARN_LOAD_REDIRECT - we are learning about the re-direct of a URI + * + * LEARN_STARTUP - we are learning about a page loaded during startup + */ + const PredictorLearnReason LEARN_LOAD_TOPLEVEL = 0; + const PredictorLearnReason LEARN_LOAD_SUBRESOURCE = 1; + const PredictorLearnReason LEARN_LOAD_REDIRECT = 2; + const PredictorLearnReason LEARN_STARTUP = 3; + + /** + * Add to our compendium of knowledge + * + * This adds to our prediction database to make things (hopefully) + * smarter next time we predict something. + * + * @param targetURI - The URI that was loaded that we are keeping track of. + * @param sourceURI - The URI that caused targetURI to be loaded (for page + * loads). This means the DOCUMENT URI. + * @param reason - The reason we are learning this bit of knowledge. + * Reason can be any of the LEARN_* values. + * In the case of LEARN_LOAD_SUBRESOURCE, targetURI should be the URI of a + * subresource of a page, and sourceURI should be the top-level URI. + * In the case of LEARN_LOAD_REDIRECT, targetURI is the NEW URI of a + * top-level resource that was redirected to, and sourceURI is the + * ORIGINAL URI of said top-level resource. + * In the case of LEARN_STARTUP, targetURI should be the URI of a page + * that was loaded immediately after browser startup, and sourceURI should + * be null. + * @param loadContext - The nsILoadContext for the page load that we are + * learning about. + */ + void learn(in nsIURI targetURI, + in nsIURI sourceURI, + in PredictorLearnReason reason, + in nsILoadContext loadContext); + + /** + * Clear out all our learned knowledge + * + * This removes everything from our database so that any predictions begun + * after this completes will start from a blank slate. + */ + void reset(); +}; + +%{C++ +// Wrapper functions to make use of the predictor easier and less invasive +class nsIChannel; +class nsIDocument; +class nsILoadContext; +class nsILoadGroup; +class nsINetworkPredictorVerifier; + +namespace mozilla { +namespace net { + +nsresult PredictorPredict(nsIURI *targetURI, + nsIURI *sourceURI, + PredictorPredictReason reason, + nsILoadContext *loadContext, + nsINetworkPredictorVerifier *verifier); + +nsresult PredictorLearn(nsIURI *targetURI, + nsIURI *sourceURI, + PredictorLearnReason reason, + nsILoadContext *loadContext); + +nsresult PredictorLearn(nsIURI *targetURI, + nsIURI *sourceURI, + PredictorLearnReason reason, + nsILoadGroup *loadGroup); + +nsresult PredictorLearn(nsIURI *targetURI, + nsIURI *sourceURI, + PredictorLearnReason reason, + nsIDocument *document); + +nsresult PredictorLearnRedirect(nsIURI *targetURI, + nsIChannel *channel, + nsILoadContext *loadContext); + +} // mozilla::net +} // mozilla +%} |