te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - Access window object from a background Chrome extension - Stack Overflow

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    javascript - Access window object from a background Chrome extension - Stack Overflow

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    I want to access the properties of a window object from a background script. I have this in manifest.json:

    {
    "..": "..",
    "permissions": ["http://*.mysite/"],
    "background": {
        "scripts": ["extension.js"]
    }
}

    and this in extension.js:

    chrome.tabs.onUpdated.addListener(function (tabId, changeInfo, tab) {
    if (changeInfo.status === 'plete') {

        var tabWindowObject = ??

        setInterval(tabWindowObject.someFunction, 10);
    }
});

    I need it here, not in another place (no content scripts and no script injection). How do I get the tabWindowObject in extension.js? In other words, I want to access the context of a tab inside a background script Chrome extension.

    I want to access the properties of a window object from a background script. I have this in manifest.json:

    {
    "..": "..",
    "permissions": ["http://*.mysite/"],
    "background": {
        "scripts": ["extension.js"]
    }
}

    and this in extension.js:

    chrome.tabs.onUpdated.addListener(function (tabId, changeInfo, tab) {
    if (changeInfo.status === 'plete') {

        var tabWindowObject = ??

        setInterval(tabWindowObject.someFunction, 10);
    }
});

    I need it here, not in another place (no content scripts and no script injection). How do I get the tabWindowObject in extension.js? In other words, I want to access the context of a tab inside a background script Chrome extension.

    • javascript
    • google-chrome
    • google-chrome-extension
    Share Improve this question asked Mar 21, 2014 at 23:42 f.ardelianf.ardelian 6,9568 gold badges40 silver badges54 bronze badges 1
    • 1 You can't. If it's an object defined by the webpage code, then you can only access it through script injection from a content script. – rsanchez Commented Mar 21, 2014 at 23:48
    Add a ment  | 

    1 Answer 1

    Reset to default 13

    You can't. The extension's background page runs in one process, while the tab that was updated runs in a separate process. Different processes can't share objects, so you can't directly access the window object of a tab from an extension's background page. You have to use a content script to get extension code to run inside the tab's process.

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