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/* vim: set ts=2 sw=2 sts=2 et tw=80: */
/* 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/. */
"use strict";
var EXPORTED_SYMBOLS = ["ThumbnailsChild"];
const lazy = {};
ChromeUtils.defineModuleGetter(
lazy,
"PageThumbUtils",
"resource://gre/modules/PageThumbUtils.jsm"
);
class ThumbnailsChild extends JSWindowActorChild {
receiveMessage(message) {
switch (message.name) {
case "Browser:Thumbnail:ContentInfo": {
let [width, height] = lazy.PageThumbUtils.getContentSize(
this.contentWindow
);
return { width, height };
}
case "Browser:Thumbnail:CheckState": {
/**
* Remote isSafeForCapture request handler for PageThumbs.
*/
return new Promise(resolve =>
Services.tm.idleDispatchToMainThread(() => {
if (!this.manager) {
// If we have no manager, our actor has been destroyed, which
// means we can't respond, and trying to touch
// `this.contentWindow` or `this.browsingContext` will throw.
// The `sendQuery` call in the parent will already have been
// rejected when the actor was destroyed, so there's no need to
// reject our promise or log an additional error.
return;
}
let result = lazy.PageThumbUtils.shouldStoreContentThumbnail(
this.contentWindow,
this.browsingContext.docShell
);
resolve(result);
})
);
}
case "Browser:Thumbnail:GetOriginalURL": {
/**
* Remote GetOriginalURL request handler for PageThumbs.
*/
let channel = this.browsingContext.docShell.currentDocumentChannel;
let channelError = lazy.PageThumbUtils.isChannelErrorResponse(channel);
let originalURL;
try {
originalURL = channel.originalURI.spec;
} catch (ex) {}
return { channelError, originalURL };
}
}
return undefined;
}
}
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