stylus/background.js
2012-06-01 23:11:32 -05:00

79 lines
2.2 KiB
JavaScript

chrome.extension.onRequest.addListener(function(request, sender, sendResponse) {
switch (request.name) {
case "getStylesToApply":
getStyles({matchUrl: sender.tab.url, enabled: true}, function(r) {
sendResponse(r);
chrome.browserAction.setBadgeText({text: getBadgeText(r), tabId: sender.tab.id});
});
break;
case "getStylesForUrl":
getStyles({url: request.url}, sendResponse);
break;
case "getStyleApplies":
sendResponse(styleAppliesToUrl(request.style, request.url));
break;
case "saveFromJSON":
saveFromJSON(request.json);
sendResponse({});
break;
case "styleChanged":
cachedGlobalStyleIds = null;
cachedStyles = [];
sendResponse({});
break;
case "getCachedStyles":
sendResponse(cachedStyles);
break;
case "cacheStyles":
request.styles.forEach(function(style) {
cachedStyles[style.id] = style;
});
break;
}
});
function styleAppliesToUrl(style, url) {
style.sections = style.sections.filter(function(section) {
return sectionAppliesToUrl(section, url);
});
if (style.sections.size == 0) {
return null;
}
return style;
}
function sectionAppliesToUrl(section, url) {
if (!section.urls && !section.domains && !section.urlPrefixes && !section.regexps) {
console.log(section + " is global");
return true;
}
if (section.urls && section.urls.indexOf(url) != -1) {
console.log(section + " applies to " + url + " due to URL rules");
return true;
}
if (section.urlPrefixes && section.urlPrefixes.some(function(prefix) {
return url.indexOf(prefix) == 0;
})) {
console.log(section + " applies to " + url + " due to URL prefix rules");
return true;
}
if (section.domains && getDomains(url).some(function(domain) {
return section.domains.indexOf(domain) != -1;
})) {
console.log(section + " applies due to " + url + " due to domain rules");
return true;
}
if (section.regexps && section.regexps.some(function(regexp) {
return (new RegExp(regexp)).test(url);
})) {
console.log(section + " applies to " + url + " due to regexp rules");
return true;
}
console.log(section + " does not apply due to " + url);
return false;
}
var cachedGlobalStyleIds = null;
var cachedStyles = [];
var background = true;