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; } ?>How to inject javascript into page, from a Firefox add-on, and run it? - Stack Overflow

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    How to inject javascript into page, from a Firefox add-on, and run it? - Stack Overflow

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    I'm writing a Firefox extension (add-on) to allow users to annotate any page with text and/or drawings and then save an image of the page including the annotations. Use cases would be clients reviewing web pages, adding feedback to the page, saving the image of this and emailing it back to the web developer or testers taking annotated screenshots of GUI bugs etc.

    I wrote the annotation/drawing functionality in javascript before developing the extension. This script adds a <canvas> element to the page to draw upon as well as a toolbar (in a <div>) that contains buttons (each <canvas> elements) for the different draw tools e.g. line, box, ellipse, text, etc. This works fine when manually included in a page.

    I now need a way for the extension to:

    1. Inject this script into any page, including pages I don't control.
    2. This needs to occur when the user invokes the extension, which can be after the page has loaded.
    3. Once injected the init() function in this script that adds the canvas and toolbar elements etc. needs to be run somehow, but I can't determine how to call this from the extension.

    Note that once injected I don't need this script to interact with the extension (as the extension just takes a screenshot of the entire document (and removes the added page elements) when the user presses the save button in the extension chrome).

    I'm writing a Firefox extension (add-on) to allow users to annotate any page with text and/or drawings and then save an image of the page including the annotations. Use cases would be clients reviewing web pages, adding feedback to the page, saving the image of this and emailing it back to the web developer or testers taking annotated screenshots of GUI bugs etc.

    I wrote the annotation/drawing functionality in javascript before developing the extension. This script adds a <canvas> element to the page to draw upon as well as a toolbar (in a <div>) that contains buttons (each <canvas> elements) for the different draw tools e.g. line, box, ellipse, text, etc. This works fine when manually included in a page.

    I now need a way for the extension to:

    1. Inject this script into any page, including pages I don't control.
    2. This needs to occur when the user invokes the extension, which can be after the page has loaded.
    3. Once injected the init() function in this script that adds the canvas and toolbar elements etc. needs to be run somehow, but I can't determine how to call this from the extension.

    Note that once injected I don't need this script to interact with the extension (as the extension just takes a screenshot of the entire document (and removes the added page elements) when the user presses the save button in the extension chrome).

    • javascript
    • firefox
    • firefox-addon
    Share Improve this question edited Jun 6, 2013 at 11:18 Brock Adams 93.5k23 gold badges240 silver badges304 bronze badges asked May 21, 2010 at 4:58 el grizel griz 1491 gold badge2 silver badges8 bronze badges 1
    • Did you figure this one out? I managed to inject the code into the page but I haven't figured out how to invoke it. – Mridang Agarwalla Commented Nov 18, 2010 at 13:43
    Add a ment  | 

    2 Answers 2

    Reset to default 10

    So this is how I solved my problem by setting the onload attribute to call the init function in the script that's being appended to the page.

    var myScript = top.window.content.document.createElement('script');
myScript.type = 'text/javascript';
myScript.setAttribute('src','chrome://path/to/script.js');
myScript.setAttribute('onload', 'firefoxInit()');
top.window.content.document.getElementsByTagName('head')[0].appendChild(myScript);

    Use the Greasemonkey extension :

    Allows you to customize the way a web page displays or behaves, by using small bits of JavaScript.

    Hundreds of scripts, for a wide variety of popular sites, are already available at http://userscripts.

    You can write your own scripts, too. Check out http://wiki.greasespot/ to get started.

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