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Detect if the user is on a comments page, and use info for that post if so.

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This commit is contained in:
Kerrick Long
2011-06-19 05:17:51 -05:00
parent 122ddfae5c
commit 412963ecaa
1 changed files with 19 additions and 5 deletions
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background.html
+19 -5
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@@ -2,6 +2,7 @@
var db = openDatabase('mhdb', '1.0', 'Mostly Harmless Database', 5 * 1024 * 1024);
var cacheTime;
var over18;
var commentsMatchPattern = /https?:\/\/www\.reddit\.com(\/r\/(.+?))?\/comments\/(.+?)\/.*/;
init();
function init() {
@@ -62,7 +63,12 @@
function listenToTabs(tabId,changeInfo,tab){
if(changeInfo.status === 'loading') {
grabData(tab.url,tabId);
//If the user is at /comments instead of /r/subreddit/comments, redirect them.
if(commentsMatchPattern.test(tab.url) && !(/https?:\/\/www\.reddit\.com\/r\/(.+?)\/comments\/(.+?)\/.*/.test(tab.url))) {
chrome.tabs.update(tabId,{url:'http://redd.it/' + tab.url.match(commentsMatchPattern)[3]});
} else {
grabData(tab.url,tabId);
}
}
}
@@ -71,9 +77,16 @@
db.transaction(function(tx) {
tx.executeSql('SELECT * FROM cache WHERE pageUrl=?', [url], function(tx, results) {
var cache = results.rows;
var isCommentsPage = commentsMatchPattern.test(url);
if(cache.length === 0 || -(cache.item(0).cacheTime - epoch()) > 60 * cacheTime ) { // cacheTime in minutes
console.log('Loading from reddit api...');
var reqUrl = 'http://www.reddit.com/api/info.json?url=' + encodeURI(url);
var reqUrl = new String();
if(isCommentsPage) {
var matches = url.match(commentsMatchPattern);
reqUrl = 'http://www.reddit.com/by_id/t3_' + matches[3] + '.json';
} else {
reqUrl = 'http://www.reddit.com/api/info.json?url=' + encodeURI(url);
}
var api = new XMLHttpRequest();
api.open('GET',reqUrl,false);
api.send(null);
@@ -82,7 +95,7 @@
console.log(api);
setBadgeDefaults(tabId);
}
api.onload = cacheData(JSON.parse(api.responseText),url,tabId);
api.onload = cacheData(JSON.parse(api.responseText),url,tabId,isCommentsPage);
} else {
console.log('Loading from cache...');
preparePopup(url,tabId);
@@ -95,7 +108,7 @@
return Math.floor(new Date().getTime()/1000);
}
function cacheData(response,pageUrl,tabId) {
function cacheData(response,pageUrl,tabId,isCommentsPage) {
// add response to cache to reduce API calls
if(response.data.children.length === 0) {
db.transaction(function(tx) {
@@ -105,11 +118,12 @@
db.transaction(function(tx) {
for(var i = 0; i < response.data.children.length; i++) {
var data = response.data.children[i].data;
var insertUrl = isCommentsPage ? 'http://www.reddit.com' + data.permalink : data.url;
tx.executeSql(
'INSERT OR REPLACE INTO posts' +
'(id, name, likes, domain, subreddit, author, score, over_18, hidden, thumbnail, downs, permalink, created_utc, url, title, num_comments, ups, modhash)' +
'VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)',
[data.id, data.name, data.likes, data.domain, data.subreddit, data.author, data.score, data.over_18, data.hidden, data.thumbnail, data.downs, data.permalink, data.created_utc, data.url, data.title, data.num_comments, data.ups, response.data.modhash],
[data.id, data.name, data.likes, data.domain, data.subreddit, data.author, data.score, data.over_18, data.hidden, data.thumbnail, data.downs, data.permalink, data.created_utc, insertUrl, data.title, data.num_comments, data.ups, response.data.modhash],
function(tx) {
tx.executeSql('INSERT OR REPLACE INTO cache (pageUrl, cacheTime, howManyPosts) VALUES (?, ?, ?)',[pageUrl, epoch(), response.data.children.length]);
});