FireGesture的几个脚本

NetxPage：

try {
  var node = FireGestures.sourceNode; 
} catch (e) {}
while (node && node.nodeName != "BODY")
  node = node.parentNode;
if (!node) node = getBrowser().contentDocument;
var e = document.createEvent("KeyboardEvent");
e.initKeyEvent("keydown", true, true, window, false, false, false, false, 39, 0);
node.dispatchEvent(e); 

 PrePage：

try {
  var node = FireGestures.sourceNode; 
} catch (e) {}
while (node && node.nodeName != "BODY")
  node = node.parentNode;
if (!node) node = getBrowser().contentDocument;
var e = document.createEvent("KeyboardEvent");
e.initKeyEvent("keydown", true, true, window, false, false, false, false, 37, 0);
node.dispatchEvent(e); 

 IsDownLoadDirChanged:

var pref="browser.download.useDownloadDir";
var PS = Components.classes['@mozilla.org/preferences-service;1']
 .getService(Components.interfaces.nsIPrefBranch);
PS.setBoolPref(pref,!PS.getBoolPref(pref));
if (PS.getBoolPref(pref) == true){
alert('Set to true');
}else{
alert('Set to false');
} 

 PS:配合翻页手势，需要GreaseMonkey的nextpage脚本。

// This is a greasemonkey script, for use with the Firefox extension Greasemonkey.

// More info: http://greasemonkey.mozdev.org/

//

// ==UserScript==

// @name               Next Page

// @author             Sunwan

// @version            0.1.7.3

// @namespace          http://www.zjcnnj.cn/mozilla/greasemonkey/

// @description        使用左右方向键来翻页 [Ver 0.1.7.3]

// @include            http://*

// @include            https://*

// ==/UserScript==



(function() {

    var checked = false;

    var delay = false;

    var next = {};

    var previous = {};

    // 下一页链接里的文字

    next.texts      = [ 'next',

                        'next page',

                        'old',

                        'older',

                        'earlier',

                        '下页',

                        '下頁',

                        '下一页',

                        '下一頁',

                        '后一页',

                        '后一頁',

                        '翻下页',

                        '翻下頁',

                        '后页',

                        '后頁',

                        '下翻',

                        '下一个',

                        '下一张',

                        '下一幅',

                        '下一节',

                        '下一章',

                        '下一篇',

                        '后一章',

                        '后一篇'

                      ];

    // 上一页链接里的文字

    previous.texts  = [ 'previous',

                        'prev',

                        'previous page',

                        'new',

                        'newer',

                        'later',

                        '上页',

                        '上頁',

                        '上一页',

                        '上一頁',

                        '前一页',

                        '前一頁',

                        '翻上页',

                        '翻上頁',

                        '前页',

                        '前頁',

                        '上翻',

                        '上一个',

                        '上一张',

                        '上一幅',

                        '上一节',

                        '上一章',

                        '上一篇',

                        '前一章',

                        '前一篇'

                      ];

    // 可能会误判的关键词

    next.miswords   = { "下一章": 30,

                        "下一篇": 30,

                        "后一章": 30,

                        "后一篇": 30,

                        "下一节": 30,

                        ">>": 2000,

                        "»": 2000

                      }

    previous.miswords = { "上一章": 30,

                          "上一篇": 30,

                          "前一章": 30,

                          "前一篇": 30,

                          "上一节": 30,

                          "<<": 2000,

                          "«": 2000

                        }



    // 取得自定义关键词

    getCustom(next, "next");

    getCustom(previous, "previous");

    // 注册脚本菜单

    registerMenu("next");

    registerMenu("previous");

    

    // 最后添加一些论坛使用的翻页符号

    next.texts.push(">>");

    next.texts.push(">");

    next.texts.push("»");

    next.texts.push("›");

    previous.texts.push("<<");

    previous.texts.push("<");

    previous.texts.push("«");

    previous.texts.push("‹");



    // 翻页文字的前面和后面可能包含的字符（正则表达式）

    var preRegexp  = '(^\\s*(?:[<‹«]*|[>›»]*|[\\(\\[『「［【]?)\\s*)';

    var nextRegexp = '(\\s*(?:[>›»]*|[\\)\\]』」］】]?)\\s*$)';



    // 取得并设置自定义关键词

    function getCustom(aObj, key) {

      var site, re;

      var cKeyWords = GM_getValue("custom_" + key, "");

      var words = cKeyWords.split(/,|，/);

      for each (var w in words) {

        site = null;

        if (/^\s*{\s*(\S*?)\s*}(.*)$/.test(w)) {

          site = RegExp.$1;

          w = RegExp.$2;

          site = site.replace(/[\/\?\.\(\)\+\-\[\]\$]/g, "\\$&").replace(/\*/g, "\.*");

        }

        w = w.replace(/\\/g, "\\").replace(/^\s+|\s+$/g, "");

        if (w) {

          if (site) {

            re = eval('/' + site + '/i');

            if (re.test(location.href))

              aObj.texts.push(w);

          }

          else

            aObj.texts.push(w);

        }

      }

    }



    // 注册菜单

    function registerMenu(key) {

      if (navigator.language == "zh-CN") {

        var word = key == "next" ? "下一页" : "上一页";

        GM_registerMenuCommand("Next Page " + word + "关键词", function(){setCustom(key, word)});

      }

      else {

        GM_registerMenuCommand("Next Page custom_" + key, function(){setCustom(key, key)});

      }

    }



    // 设置新的关键词

    function setCustom(k, w) {

      var text = navigator.language == "zh-CN" ? "请输入“"+w+"”的关键词，以“,”号分隔开。" : "Please enter the "+w+" page key-words, split with ','.";

      var result = prompt(text, GM_getValue("custom_" + k, ""));

      if (result != null) GM_setValue("custom_" + k, result);

    }



    function checkLinks() {

      var link, text, ldnc, lnc, ldpc, lpc, num, digCurFound, linkNumber, found, tmpNode;

      var regexp = new RegExp();

      // 查找相应的链接

      var links = document.getElementsByTagName('A');

      for (var i = 0; i < links.length; i++) {

        link = links[i];



        // 跳过不起作用的链接

        if (!link.offsetParent || link.offsetWidth == 0 || link.offsetHeight == 0 || !link.hasAttribute("href") && !link.hasAttribute("onclick"))

          continue;

        // 跳过日历

        if (/(?:^|\s)(?:monthlink|weekday|day|day[\-_]\S+)(?:\s|$)/i.test(link.className))

          continue;



        if (/^nextlink/i.test(link.id) || /^linknext/i.test(link.id) ||

            /(^|\s)nextlink/i.test(link.className) || /(^|\s)linknext/i.test(link.className))

          next.link = link;

        if (/^prev(ious)?link/i.test(link.id) || /^linkprev(ious)?/i.test(link.id) ||

            /(^|\s)prev(ious)?link/i.test(link.className) || /(^|\s)linkprev(ious)?/i.test(link.className))

          previous.link = link;



        text = link.textContent;

        if (!text) {

          // 若链接中没有文字，则检查图片的alt属性、链接或图片的title

          for each (var img in link.childNodes) {

            if (img.localName == "IMG") {

              text = img.alt || link.title || img.title;

              if (text) break;

            }

          }

          if (!text) continue;

        }

        text = text.toLowerCase().replace(/^\s+|\s+$/g, "");

        if (!text) continue;



        // 纯数字链接

        if (isDigital(text)) {

          if (digCurFound) continue;

          linkNumber = parseInt(RegExp.$1);



          // 检测下一个位置是否是当前页面的页数

          if ((tmpNode = getCurrentPageNode(link, linkNumber, 1)) && tmpNode) {

            digCurFound = true;

            previous.link = link;

            previous.found = true;

            previous.pos = i;

            // 再检测下下一个位置是否是“下一页”的链接

            if (getNextLink(tmpNode, linkNumber+2, true))

              break;

            // 设置往后的30个位置以内为“下一页”的可能链接，以提高检测速度。

            ldnc = i + 30;

          }

          // 检测上一个位置是否是当前页面的页数

          else if (getCurrentPageNode(link, linkNumber, -1)) {

            digCurFound = true;

            next.link = link;

            next.found = true;

            next.pos = i;

            ldpc = i + 30;

            continue;

          }

          // 检测自身是否是当前页面的页数

          else if (getCurrentPageNode(link, linkNumber, 0)) {

            digCurFound = true;

            // 再检测下一个位置是否是“下一页”的链接

            if (getNextLink(link, linkNumber+1, true)) {

              next.pos = i;

              ldpc = i + 30;

              continue;

            }

            // 设置往后的30个位置以内为“下一页”的可能链接，以提高检测速度。

            ldnc = i + 30;

          }

          continue;

        }

        else {

          found = false;

          if (!next.found && !(lnc < i) && !(ldnc < i)) {

            for (var j = 0; j < next.texts.length; j++) {

              if (regexp.compile(preRegexp + next.texts[j] + nextRegexp, 'i').test(text)) {

                // 检测到“下一页”的链接

                found = true;

                next.link = link;

                num = next.miswords[next.texts[j]];

                // 若“下一页”的词语有可能会误判时，最多再检测预定个数的链接。

                (num == null) ? next.found = true : lnc = i + num;

                break;

              }

            }

          }

          if (!next.digital && lnc < i) next.found = true;



          if (!found && !previous.found && !(lpc < i) && !(ldpc < i)) {

            for (var j = 0; j < previous.texts.length; j++) {

              if (regexp.compile(preRegexp + previous.texts[j] + nextRegexp, 'i').test(text)) {

                // 检测到“上一页”的链接

                previous.link = link;

                num = previous.miswords[previous.texts[j]];

                // 若“上一页”的词语有可能会误判时，最多再检测预定个数的链接。

                (num == null) ? previous.found = true : lpc = i + num;

                break;

              }

            }

          }

          if (lpc < i) previous.found = true;

          // 重新设置纯数字链接未被检查

          digCurFound = null;

        }



        // 找到“上一页”和“下一页”的链接或找到其中一个而另一个超过规定范围没找到，将不再查找。

        if (next.found && previous.found ||

            next.found && i > next.pos + 30 ||

            previous.found && i > previous.pos + 30)

          break;

      }

      // 通过以上方法没有找到“下一页”的，把第一次检测出来的数字1的链接作为当前页，2作为“下一页”。

      if (!next.found /*&& !next.link*/ && next.digital)

        next.link = next.digital;



      if (next.link) next.found = true;

      if (previous.link) previous.found = true;



      if (!next.found && !previous.found)

        checkButtons();

    }



    // 检查翻页按钮

    function checkButtons() {

      var but, text, found;

      var regexp = new RegExp();

      var buts = document.getElementsByTagName('INPUT');

      for (var i = 0; i < buts.length; i++) {

        but = buts[i];

        if (but.hasAttribute("disabled") || !(/^button$/i.test(but.type) && but.getAttribute("onclick"))) continue;



        text = but.value;

        found = false;

        if (!next.found) {

          for (var j = 0; j < next.texts.length; j++) {

            if (regexp.compile(preRegexp + next.texts[j] + nextRegexp, 'i').test(text)) {

              // 检测到“下一页”的按钮

              next.link = but;

              next.found = found = true;

              break;

            }

          }

        }



        if (!found && !previous.found) {

          for (var j = 0; j < previous.texts.length; j++) {

            if (regexp.compile(preRegexp + previous.texts[j] + nextRegexp, 'i').test(text)) {

              // 检测到“上一页”的按钮

              previous.link = but;

              previous.found = true;

              break;

            }

          }

        }

        if (next.found && previous.found) break;

      }

    }



    // 取得相邻的纯数字节点，type: 1 下一个；-1 上一个

    function getSiblingNode(node, type) {

      if (!node) return null;

      node = getSibling(node, type);

      while (node && (node.nodeName == "#coment" ||

            (/^\s*[\]］】]?[,\|]?\s*[\[［【]?\s*$/.test(node.textContent))))

        node = getSibling(node, type);

      return node;

    }

    function getSibling(aNode, type) {

      if (!aNode) return null;

      if (isOnlyNode(aNode)) {

        try {

          aNode = (type == 1 ? aNode.parentNode.nextSibling : aNode.parentNode.previousSibling);

          if (skipNode(aNode))

            aNode = (type == 1 ? aNode.nextSibling : aNode.previousSibling);

          aNode = aNode.childNodes[0];

          if (skipNode(aNode))

            aNode = aNode.nextSibling;

        }

        catch (e) {return null;}

      }

      else {

        aNode = (type == 1 ? aNode.nextSibling : aNode.previousSibling);

      }

      return aNode;

    }

    function isOnlyNode(n) {

      return !n.nextSibling && !n.previousSibling ||

             !n.nextSibling && skipNode(n.previousSibling) && !n.previousSibling.previousSibling ||

             !n.previousSibling && skipNode(n.nextSibling) && !n.nextSibling.nextSibling ||

             skipNode(n.previousSibling) && !n.previousSibling.previousSibling &&

             skipNode(n.nextSibling) && !n.nextSibling.nextSibling;

    }

    function skipNode(sNode) {

      return sNode && /*sNode.nodeName == "#text" &&*/ (/^\s*$/.test(sNode.textContent));

    }



    // 检测是否有下一页的纯数字链接，number:页数

    function getNextLink(node, number, set) {

      var tNode = getSiblingNode(node, 1);

      if (tNode && tNode.nodeName == "A" && isDigital(tNode.textContent)) {

        if (RegExp.$1 == number) {

          // 找到纯数字链接

          if (set) {

            next.link = tNode;

            next.found = true;

          }

          return tNode;

        }

      }

      return null;

    }



    function isDigital(str, t) {

      str = str.replace(/^\s+|\s+$/g, "");

      if (t == -1)

        str = str.split(/\s+/).pop();

      else if (t == 1)

        str = str.split(/\s+/)[0];

      return (/^(\d+)$/.test(str)) ||

             (/^\[\s?(\d+)\s?\]$/.test(str)) ||

             (/^【\s?(\d+)\s?】$/.test(str)) ||

             (/^［\s?(\d+)\s?］$/.test(str)) ||

             (/^<\s?(\d+)\s?>$/.test(str));

    }



    // 判断是否是当前页面的数字，type:-1,0,1 分别是要判别的上一个、当前、下一个节点

    function getCurrentPageNode(node, linkNum, type) {

      var tNode;

      if (type == 0) {

        tNode = getSiblingNode(node, 1) || getSiblingNode(node, -1);

        if (!tNode) return null;

        if (!node.hasAttribute("onclick") && node.href != tNode.href &&

            (!node.hasAttribute("href") && isDigital(node.textContent, type) ||

            !(/\/#[^\/]+$/.test(node.href)) && node.href == location.href && isDigital(node.textContent, type))) {

          if (linkNum > 0 && RegExp.$1 == linkNum) return node;

        }

        // 某些论坛处在第一页时，实际链接和当前页链接不符，只有和其余纯数字链接的结构或颜色不同时，

        // 才使用纯数字的“2”作为“下一页”的链接。

        else if (!next.digital && (/^\s*[\[［【]?1[\]］】]?\s*$/.test(node.textContent))) {

          var two = getNextLink(node, 2);

          if (two && difDigital(node, two))

            next.digital = two;

        }

      }

      else {

        tNode = getSiblingNode(node, type);

        if (!tNode) return null;

        if (tNode.nodeName != "A" && isDigital(tNode.textContent, type) ||

            tNode.nodeName == "A" && !tNode.hasAttribute("onclick") && node.href != tNode.href &&

            (!tNode.hasAttribute("href") && isDigital(tNode.textContent, type) ||

            !(/\/#[^\/]+$/.test(tNode.href)) && tNode.href == location.href && isDigital(tNode.textContent, type))) {

          var n = linkNum + type;

          if (n > 0 && RegExp.$1 == n) {

            if (next.digital) next.digital = null;

            return tNode;

          }

        }

      }

      return null;

    }



    function difDigital(node1, node2) {

      if (getStructure(node1) == getStructure(node2) && getStyleColor(node1) == getStyleColor(node2))

        return false;

      return true;

    }

    function getStructure(aNode) {

      return aNode.innerHTML.replace(/\d+/, "");

    }

    function getStyleColor(aNode) {

      return document.defaultView.getComputedStyle(aNode, null).getPropertyValue("color");

    }



    function openLink(linkNode) {

      if (!linkNode) return;

      var hf = linkNode.getAttribute("href");

      if (!linkNode.hasAttribute("onclick") && hf && !(/^#/.test(hf)) && linkNode.href != location.href) {

        cleanVars();

        location.assign(linkNode.href);

      }

      else {

        // 有些4D鼠标摆动一下滚轮会触发多下的方向键，故增设一个延迟参数，使它只翻一页。

        delay = true;

        setTimeout(cleanVars, 300);

        var e = document.createEvent("MouseEvents");

        e.initMouseEvent("click", 1, 1, window, 1, 0,0,0,0,0,0,0,0,0, linkNode);

        linkNode.dispatchEvent(e);

      }

    }

    function cleanVars() {

      try {

        checked = false;

        delay = false;

        next.link = next.found = next.digital = null;

        previous.link = previous.found = previous.digital = null;

        delete next.pos;

        delete previous.pos;

      } catch(e) {}

    }



    function onKeyDown(event) {

      // 不是左右方向建被按下或不到延迟时间则退出

      if (event.ctrlKey || event.shiftKey || event.altKey || event.metaKey || event.keyCode != 37 && event.keyCode != 39 || delay)

        return



      // 确保光标不是定位在文字输入框或选择框

      var localName = event.target.localName;

      if (localName == 'TEXTAREA' || localName == 'INPUT' || localName == 'SELECT')

        return;



      // 检查过且没有发现上一页或下一页的连接，则退出

      if (checked && !next.found && !previous.found)

        return;



      if (!checked) {

        checkLinks();

        checked = true;

      }



      if (event.keyCode == 37 && previous.found) {

        // 左方向键，跳到“上一页”

        openLink(previous.link)

      }

      else if (event.keyCode == 39 && next.found) {

        // 右方向键，跳到“下一页”

        openLink(next.link)

      }

    }



    window.addEventListener("keydown", function(e){onKeyDown(e)}, true);

})();