blob: 20f6918decd5c09874231dbf5fd33efa3a818f5e [file] [log] [blame]
/*
* Copyright (C) 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
// FIXME: ApplicationCacheManager lacks advanced multi-target support. (ApplciationCache objects per-target)
WI.ApplicationCacheManager = class ApplicationCacheManager extends WI.Object
{
constructor()
{
super();
WI.Frame.addEventListener(WI.Frame.Event.MainResourceDidChange, this._mainResourceDidChange, this);
WI.Frame.addEventListener(WI.Frame.Event.ChildFrameWasRemoved, this._childFrameWasRemoved, this);
this._online = true;
this.initialize();
}
// Target
initializeTarget(target)
{
if (target.ApplicationCacheAgent) {
target.ApplicationCacheAgent.enable();
target.ApplicationCacheAgent.getFramesWithManifests(this._framesWithManifestsLoaded.bind(this));
}
}
// Public
initialize()
{
this._applicationCacheObjects = {};
}
get applicationCacheObjects()
{
var applicationCacheObjects = [];
for (var id in this._applicationCacheObjects)
applicationCacheObjects.push(this._applicationCacheObjects[id]);
return applicationCacheObjects;
}
networkStateUpdated(isNowOnline)
{
this._online = isNowOnline;
this.dispatchEventToListeners(WI.ApplicationCacheManager.Event.NetworkStateUpdated, {online: this._online});
}
get online()
{
return this._online;
}
applicationCacheStatusUpdated(frameId, manifestURL, status)
{
var frame = WI.networkManager.frameForIdentifier(frameId);
if (!frame)
return;
this._frameManifestUpdated(frame, manifestURL, status);
}
requestApplicationCache(frame, callback)
{
function callbackWrapper(error, applicationCache)
{
if (error) {
callback(null);
return;
}
callback(applicationCache);
}
ApplicationCacheAgent.getApplicationCacheForFrame(frame.id, callbackWrapper);
}
// Private
_mainResourceDidChange(event)
{
console.assert(event.target instanceof WI.Frame);
if (event.target.isMainFrame()) {
// If we are dealing with the main frame, we want to clear our list of objects, because we are navigating to a new page.
this.initialize();
this.dispatchEventToListeners(WI.ApplicationCacheManager.Event.Cleared);
return;
}
if (window.ApplicationCacheAgent)
ApplicationCacheAgent.getManifestForFrame(event.target.id, this._manifestForFrameLoaded.bind(this, event.target.id));
}
_childFrameWasRemoved(event)
{
this._frameManifestRemoved(event.data.childFrame);
}
_manifestForFrameLoaded(frameId, error, manifestURL)
{
if (error)
return;
var frame = WI.networkManager.frameForIdentifier(frameId);
if (!frame)
return;
if (!manifestURL)
this._frameManifestRemoved(frame);
}
_framesWithManifestsLoaded(error, framesWithManifests)
{
if (error)
return;
for (var i = 0; i < framesWithManifests.length; ++i) {
var frame = WI.networkManager.frameForIdentifier(framesWithManifests[i].frameId);
if (!frame)
continue;
this._frameManifestUpdated(frame, framesWithManifests[i].manifestURL, framesWithManifests[i].status);
}
}
_frameManifestUpdated(frame, manifestURL, status)
{
if (status === WI.ApplicationCacheManager.Status.Uncached) {
this._frameManifestRemoved(frame);
return;
}
if (!manifestURL)
return;
var manifestFrame = this._applicationCacheObjects[frame.id];
if (manifestFrame && manifestURL !== manifestFrame.manifest.manifestURL)
this._frameManifestRemoved(frame);
var oldStatus = manifestFrame ? manifestFrame.status : -1;
var statusChanged = manifestFrame && status !== oldStatus;
if (manifestFrame)
manifestFrame.status = status;
if (!this._applicationCacheObjects[frame.id]) {
var cacheManifest = new WI.ApplicationCacheManifest(manifestURL);
this._applicationCacheObjects[frame.id] = new WI.ApplicationCacheFrame(frame, cacheManifest, status);
this.dispatchEventToListeners(WI.ApplicationCacheManager.Event.FrameManifestAdded, {frameManifest: this._applicationCacheObjects[frame.id]});
}
if (statusChanged)
this.dispatchEventToListeners(WI.ApplicationCacheManager.Event.FrameManifestStatusChanged, {frameManifest: this._applicationCacheObjects[frame.id]});
}
_frameManifestRemoved(frame)
{
if (!this._applicationCacheObjects[frame.id])
return;
delete this._applicationCacheObjects[frame.id];
this.dispatchEventToListeners(WI.ApplicationCacheManager.Event.FrameManifestRemoved, {frame});
}
};
WI.ApplicationCacheManager.Event = {
Cleared: "application-cache-manager-cleared",
FrameManifestAdded: "application-cache-manager-frame-manifest-added",
FrameManifestRemoved: "application-cache-manager-frame-manifest-removed",
FrameManifestStatusChanged: "application-cache-manager-frame-manifest-status-changed",
NetworkStateUpdated: "application-cache-manager-network-state-updated"
};
WI.ApplicationCacheManager.Status = {
Uncached: 0,
Idle: 1,
Checking: 2,
Downloading: 3,
UpdateReady: 4,
Obsolete: 5
};