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Issue 29338491: Issue 3823 - Split up message responder code (Closed)
Patch Set: Don't check for instance of Promise, avoid creating unnecessary arays Created March 21, 2016, 1:25 p.m.
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Index: background.js
===================================================================
--- a/background.js
+++ b/background.js
@@ -24,7 +24,6 @@
with(require("whitelisting"))
{
this.checkWhitelisted = checkWhitelisted;
- this.processKey = processKey;
this.getKey = getKey;
}
with(require("url"))
@@ -39,10 +38,9 @@
var ElemHide = require("elemHide").ElemHide;
var defaultMatcher = require("matcher").defaultMatcher;
var Prefs = require("prefs").Prefs;
-var parseFilters = require("filterValidation").parseFilters;
-var composeFilters = require("filterComposer").composeFilters;
var updateIcon = require("icon").updateIcon;
var showNextNotificationForUrl = require("notificationHelper").showNextNotificationForUrl;
+var port = require("messaging").port;
var devtools = require("devtools");
// Special-case domains for which we cannot use style-based hiding rules.
@@ -120,171 +118,97 @@
return {filters: filters, exceptions: exceptions};
}
-ext.onMessage.addListener(function (msg, sender, sendResponse)
+port.on("get-selectors", function(msg, sender)
{
- switch (msg.type)
+ var selectors = [];
+ var trace = devtools && devtools.hasPanel(sender.page);
+
+ if (!checkWhitelisted(sender.page, sender.frame,
+ RegExpFilter.typeMap.DOCUMENT |
+ RegExpFilter.typeMap.ELEMHIDE))
{
- case "composer.openDialog":
- ext.windows.create({
- url: ext.getURL("block.html"),
- left: 50,
- top: 50,
- width: 420,
- height: 200,
- focused: true,
- type: "popup"
- },
- function (popupPage) {
- var popupPageId = popupPage.id;
- function onRemoved(removedPageId)
- {
- if (popupPageId == removedPageId)
- {
- sender.page.sendMessage({
- type: "composer.content.dialogClosed",
- popupId: popupPageId
- });
- ext.pages.onRemoved.removeListener(onRemoved);
- }
- }
- ext.pages.onRemoved.addListener(onRemoved);
+ var noStyleRules = false;
+ var specificOnly = checkWhitelisted(sender.page, sender.frame,
+ RegExpFilter.typeMap.GENERICHIDE);
+ var host = extractHostFromFrame(sender.frame);
- sendResponse(popupPageId);
+ for (var i = 0; i < noStyleRulesHosts.length; i++)
+ {
+ var noStyleHost = noStyleRulesHosts[i];
+ if (host == noStyleHost || (host.length > noStyleHost.length &&
+ host.substr(host.length - noStyleHost.length - 1) == "." + noStyleHost))
+ {
+ noStyleRules = true;
+ }
+ }
+ selectors = ElemHide.getSelectorsForDomain(host, specificOnly);
+ if (noStyleRules)
+ {
+ selectors = selectors.filter(function(s)
+ {
+ return !/\[style[\^\$]?=/.test(s);
});
- return true;
- break;
- case "get-selectors":
- var selectors = [];
- var trace = devtools && devtools.hasPanel(sender.page);
+ }
+ }
- if (!checkWhitelisted(sender.page, sender.frame,
- RegExpFilter.typeMap.DOCUMENT |
- RegExpFilter.typeMap.ELEMHIDE))
- {
- var noStyleRules = false;
- var specificOnly = checkWhitelisted(sender.page, sender.frame,
- RegExpFilter.typeMap.GENERICHIDE);
- var host = extractHostFromFrame(sender.frame);
+ return {selectors: selectors, trace: trace};
+});
- for (var i = 0; i < noStyleRulesHosts.length; i++)
- {
- var noStyleHost = noStyleRulesHosts[i];
- if (host == noStyleHost || (host.length > noStyleHost.length &&
- host.substr(host.length - noStyleHost.length - 1) == "." + noStyleHost))
- {
- noStyleRules = true;
- }
- }
- selectors = ElemHide.getSelectorsForDomain(host, specificOnly);
- if (noStyleRules)
- {
- selectors = selectors.filter(function(s)
- {
- return !/\[style[\^\$]?=/.test(s);
- });
- }
- }
+port.on("should-collapse", function(msg, sender)
+{
+ if (checkWhitelisted(sender.page, sender.frame))
+ return false;
- sendResponse({selectors: selectors, trace: trace});
- break;
- case "should-collapse":
- if (checkWhitelisted(sender.page, sender.frame))
- {
- sendResponse(false);
- break;
- }
+ var typeMask = RegExpFilter.typeMap[msg.mediatype];
+ var documentHost = extractHostFromFrame(sender.frame);
+ var sitekey = getKey(sender.page, sender.frame);
+ var blocked = false;
- var typeMask = RegExpFilter.typeMap[msg.mediatype];
- var documentHost = extractHostFromFrame(sender.frame);
- var sitekey = getKey(sender.page, sender.frame);
- var blocked = false;
+ var specificOnly = checkWhitelisted(
+ sender.page, sender.frame,
+ RegExpFilter.typeMap.GENERICBLOCK
+ );
- var specificOnly = checkWhitelisted(
- sender.page, sender.frame,
- RegExpFilter.typeMap.GENERICBLOCK
- );
+ for (var i = 0; i < msg.urls.length; i++)
+ {
+ var url = new URL(msg.urls[i], msg.baseURL);
+ var filter = defaultMatcher.matchesAny(
+ stringifyURL(url), typeMask,
+ documentHost, isThirdParty(url, documentHost),
+ sitekey, specificOnly
+ );
- for (var i = 0; i < msg.urls.length; i++)
- {
- var url = new URL(msg.urls[i], msg.baseURL);
- var filter = defaultMatcher.matchesAny(
- stringifyURL(url), typeMask,
- documentHost, isThirdParty(url, documentHost),
- sitekey, specificOnly
- );
+ if (filter instanceof BlockingFilter)
+ {
+ if (filter.collapse != null)
+ return filter.collapse;
- if (filter instanceof BlockingFilter)
- {
- if (filter.collapse != null)
- {
- sendResponse(filter.collapse);
- return;
- }
+ blocked = true;
+ }
+ }
- blocked = true;
- }
- }
+ return blocked && Prefs.hidePlaceholders;
+});
- sendResponse(blocked && Prefs.hidePlaceholders);
- break;
- case "get-domain-enabled-state":
- // Returns whether this domain is in the exclusion list.
- // The browser action popup asks us this.
- if(sender.page)
- {
- sendResponse({enabled: !checkWhitelisted(sender.page)});
- return;
- }
- break;
- case "add-sitekey":
- processKey(msg.token, sender.page, sender.frame);
- break;
- case "composer.ready":
- htmlPages.set(sender.page, null);
- refreshIconAndContextMenu(sender.page);
- break;
- case "composer.getFilters":
- sendResponse(composeFilters({
- tagName: msg.tagName,
- id: msg.id,
- src: msg.src,
- style: msg.style,
- classes: msg.classes,
- urls: msg.urls,
- type: msg.mediatype,
- baseURL: msg.baseURL,
- page: sender.page,
- frame: sender.frame
- }));
- break;
- case "trace-elemhide":
- devtools.logHiddenElements(
- sender.page, msg.selectors,
- extractHostFromFrame(sender.frame)
- );
- break;
- case "has-devtools-panel":
- sendResponse(Prefs.show_devtools_panel);
- break;
- case "forward":
- var targetPage;
- if (msg.targetPageId)
- targetPage = ext.getPage(msg.targetPageId);
- else
- targetPage = sender.page;
+port.on("get-domain-enabled-state", function(msg, sender)
+{
+ return {enabled: !checkWhitelisted(sender.page)};
+});
- if (targetPage)
- {
- msg.payload.sender = sender.page.id;
- if (msg.expectsResponse)
- {
- targetPage.sendMessage(msg.payload, sendResponse);
- return true;
- }
+port.on("forward", function(msg, sender)
+{
+ var targetPage;
+ if (msg.targetPageId)
+ targetPage = ext.getPage(msg.targetPageId);
+ else
+ targetPage = sender.page;
- targetPage.sendMessage(msg.payload);
- }
- break;
+ if (targetPage)
+ {
+ msg.payload.sender = sender.page.id;
+ if (msg.expectsResponse)
+ return new Promise(targetPage.sendMessage.bind(targetPage, msg.payload));
+ targetPage.sendMessage(msg.payload);
}
});
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