зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1393924 - Collect description and preview image and store it into moz_places r=mak
MozReview-Commit-ID: 8AgBMOodQop --HG-- extra : rebase_source : f440e9497ee52a3b38e7bcf6dac7fee574f7885d
This commit is contained in:
Ursula Sarracini
Родитель
c228558347
Коммит
bb971f3f6a
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@ -1290,7 +1290,7 @@ var gBrowserInit = {
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// loading the frame script to ensure that we don't miss any
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// message sent between when the frame script is loaded and when
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// the listener is registered.
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DOMLinkHandler.init();
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DOMEventHandler.init();
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gPageStyleMenu.init();
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LanguageDetectionListener.init();
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BrowserOnClick.init();
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@ -3704,13 +3704,13 @@ var newWindowButtonObserver = {
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}
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}
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}
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const DOMLinkHandler = {
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const DOMEventHandler = {
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init() {
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let mm = window.messageManager;
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mm.addMessageListener("Link:AddFeed", this);
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mm.addMessageListener("Link:SetIcon", this);
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mm.addMessageListener("Link:AddSearch", this);
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mm.addMessageListener("Meta:SetPageInfo", this);
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},
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receiveMessage(aMsg) {
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@ -3727,9 +3727,19 @@ const DOMLinkHandler = {
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case "Link:AddSearch":
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this.addSearch(aMsg.target, aMsg.data.engine, aMsg.data.url);
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break;
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case "Meta:SetPageInfo":
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this.setPageInfo(aMsg.data);
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break;
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}
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},
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setPageInfo(aData) {
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const {url, description, previewImageURL} = aData;
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gBrowser.setPageInfo(url, description, previewImageURL);
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return true;
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},
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setIcon(aBrowser, aURL, aLoadingPrincipal) {
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if (gBrowser.isFailedIcon(aURL))
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return false;
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@ -17,6 +17,7 @@ XPCOMUtils.defineLazyModuleGetters(this, {
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E10SUtils: "resource:///modules/E10SUtils.jsm",
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BrowserUtils: "resource://gre/modules/BrowserUtils.jsm",
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ContentLinkHandler: "resource:///modules/ContentLinkHandler.jsm",
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ContentMetaHandler: "resource:///modules/ContentMetaHandler.jsm",
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ContentWebRTC: "resource:///modules/ContentWebRTC.jsm",
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SpellCheckHelper: "resource://gre/modules/InlineSpellChecker.jsm",
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InlineSpellCheckerContent: "resource://gre/modules/InlineSpellCheckerContent.jsm",
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@ -769,6 +770,7 @@ var ClickEventHandler = {
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ClickEventHandler.init();
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ContentLinkHandler.init(this);
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ContentMetaHandler.init(this);
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// TODO: Load this lazily so the JSM is run only if a relevant event/message fires.
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var pluginContent = new PluginContent(global);
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@ -1022,6 +1022,20 @@
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</body>
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</method>
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<method name="setPageInfo">
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<parameter name="aURL"/>
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<parameter name="aDescription"/>
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<parameter name="aPreviewImage"/>
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<body>
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<![CDATA[
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if (aURL) {
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let pageInfo = {url: aURL, description: aDescription, previewImageURL: aPreviewImage}
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PlacesUtils.history.update(pageInfo).catch(Components.utils.reportError);
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}
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]]>
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</body>
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</method>
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<method name="shouldLoadFavIcon">
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<parameter name="aURI"/>
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<body>
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@ -0,0 +1,7 @@
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"use strict";
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module.exports = {
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"extends": [
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"plugin:mozilla/browser-test",
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]
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};
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@ -0,0 +1,4 @@
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[DEFAULT]
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support-files =
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meta_tags.html
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[browser_meta_tags.js]
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@ -0,0 +1,30 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* globals gBrowser */
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/* This tests that with the page meta_tags.html, ContentMetaHandler.jsm parses out
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* the meta tags avilable and only stores the best one for description and one for
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* preview image url. In the case of this test, the best defined meta tags are
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* "og:description" and "og:image:url". The list of meta tags and their order of
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* preference is found in ContentMetaHandler.jsm. Because there is debounce logic
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* in ContentLinkHandler.jsm to only make one single SQL update, we have to wait
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* for some time before checking that the page info was stored correctly.
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*/
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add_task(async function test() {
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Components.utils.import("resource://gre/modules/PlacesUtils.jsm");
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const URL = "https://example.com/browser/browser/base/content/test/metaTags/meta_tags.html";
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let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, URL);
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// Wait until places has stored the page info
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let pageInfo;
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await BrowserTestUtils.waitForCondition(async () => {
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pageInfo = await PlacesUtils.history.fetch(URL, {"includeMeta": true});
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const {previewImageURL, description} = pageInfo;
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return previewImageURL.href && description;
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});
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is(pageInfo.description, "og:description", "got the correct description");
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is(pageInfo.previewImageURL.href, "og:image:url", "got the correct preview image");
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await BrowserTestUtils.removeTab(tab);
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});
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@ -0,0 +1,18 @@
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<!DOCTYPE HTML>
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<html>
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<head>
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<meta charset="UTF-8" />
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<title>MetaTags</title>
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<meta property="twitter:description" content="twitter:description" />
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<meta property="og:description" content="og:description" />
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<meta name="description" content="description" />
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<meta name="unknown:tag" content="unknown:tag" />
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<meta property="og:image" content="og:image" />
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<meta property="twitter:image" content="twitter:image" />
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<meta property="og:image:url" content="og:image:url" />
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<meta name="thumbnail" content="thumbnail" />
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</head>
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<body>
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</body>
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</html>
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@ -24,6 +24,7 @@ BROWSER_CHROME_MANIFESTS += [
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'content/test/contextMenu/browser.ini',
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'content/test/forms/browser.ini',
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'content/test/general/browser.ini',
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'content/test/metaTags/browser.ini',
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'content/test/newtab/browser.ini',
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'content/test/pageinfo/browser.ini',
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'content/test/performance/browser.ini',
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@ -0,0 +1,132 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const {utils: Cu, interfaces: Ci, classes: Cc} = Components;
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Cu.importGlobalProperties(["URL"]);
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// Debounce time in milliseconds
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const TIMEOUT_DELAY = 100;
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// Possible description tags, listed in order from least favourable to most favourable
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const DESCRIPTION_RULES = [
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"twitter:description",
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"description",
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"og:description"
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];
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// Possible image tags, listed in order from least favourable to most favourable
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const PREVIEW_IMAGE_RULES = [
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"thumbnail",
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"twitter:image",
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"og:image",
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"og:image:url",
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"og:image:secure_url"
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];
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const DEFAULT_MAP_VALUES = {
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"description": {value: null, currMaxScore: -1},
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"image": {value: null, currMaxScore: -1},
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"timeout": null
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};
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/*
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* Checks if the incoming meta tag has a greater score than the current best
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* score by checking the index of the meta tag in the list of rules provided.
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*
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* @param {Array} aRules
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* The list of rules for a given type of meta tag
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* @param {String} aTag
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* The name or property of the incoming meta tag
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* @param {String} aEntry
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* The current best entry for the given meta tag
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*
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* @returns {Boolean} true if the incoming meta tag is better than the current
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* best meta tag of that same kind, false otherwise
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*/
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function shouldExtractMetadata(aRules, aTag, aEntry) {
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return aRules.indexOf(aTag) > aEntry.currMaxScore;
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}
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this.EXPORTED_SYMBOLS = [ "ContentMetaHandler" ];
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/*
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* This listens to DOMMetaAdded events and collects relevant metadata about the
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* meta tag received. Then, it sends the metadata gathered from the meta tags
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* and the url of the page as it's payload to be inserted into moz_places.
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*/
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this.ContentMetaHandler = {
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init(chromeGlobal) {
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chromeGlobal.addEventListener("DOMMetaAdded", event => {
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const metaTag = event.originalTarget;
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const window = metaTag.ownerGlobal;
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// If there's no meta tag, or we're in a sub-frame, ignore this
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if (!metaTag || !metaTag.ownerDocument || window != window.top) {
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return;
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}
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this.handleMetaTag(metaTag, chromeGlobal);
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});
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// Stores a mapping of the best description and preview image collected so far
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// for a given URL
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this._metaTags = new Map();
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},
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handleMetaTag(metaTag, chromeGlobal) {
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const url = metaTag.ownerDocument.documentURI;
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let name = metaTag.name;
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let prop = metaTag.getAttributeNS(null, "property");
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if (!name && !prop) {
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return;
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}
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let tag = name || prop;
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let entry = this._metaTags.get(url) || Object.assign({}, DEFAULT_MAP_VALUES);
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if (shouldExtractMetadata(DESCRIPTION_RULES, tag, entry.description)) {
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// Extract the description
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const value = metaTag.getAttributeNS(null, "content");
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if (value) {
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entry.description.value = value;
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entry.description.currMaxScore = DESCRIPTION_RULES.indexOf(tag);
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}
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} else if (shouldExtractMetadata(PREVIEW_IMAGE_RULES, tag, entry.image)) {
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// Extract the preview image
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const value = metaTag.getAttributeNS(null, "content");
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if (value) {
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entry.image.value = new URL(value, url).href;
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entry.image.currMaxScore = PREVIEW_IMAGE_RULES.indexOf(tag);
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}
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} else {
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// We don't care about other meta tags
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return;
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}
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if (!this._metaTags.has(url)) {
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this._metaTags.set(url, entry);
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}
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if (entry.timeout) {
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entry.timeout.delay = TIMEOUT_DELAY;
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} else {
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// We want to debounce incoming meta tags until we're certain we have the
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// best one for description and preview image, and only store that one
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entry.timeout = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
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entry.timeout.initWithCallback(() => {
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entry.timeout = null;
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// Save description and preview image to moz_places
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chromeGlobal.sendAsyncMessage("Meta:SetPageInfo", {
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url,
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description: entry.description.value,
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previewImageURL: entry.image.value
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});
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this._metaTags.delete(url);
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}, TIMEOUT_DELAY, Ci.nsITimer.TYPE_ONE_SHOT);
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}
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}
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};
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@ -132,6 +132,7 @@ EXTRA_JS_MODULES += [
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'ContentClick.jsm',
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'ContentCrashHandlers.jsm',
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'ContentLinkHandler.jsm',
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'ContentMetaHandler.jsm',
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'ContentObservers.js',
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'ContentSearch.jsm',
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'ContentWebRTC.jsm',
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