vimperatorでもXPathでblink

現在、最新版はhttp://coderepos.org/share/browser/lang/javascript/vimperator-plugins/trunk/にあります。

• xpathBlink.js

vimperator 0.5.3用に書き直しました
実は先ほどの記事(XPath で選択したノードを Blink する拡張を作ってみた)より先に作ったのだけれど、こちらも公開。こっちのはvimperatorのEXコマンド
inIFlasherを使うように変更。

HOME/.vimperator/plugin/xpathBlink.js

(function(){
const Cc = Components.classes;
const Ci = Components.interfaces;
var flasher = null;
function getFlasher(){
    if (!flasher){
        flasher = Cc['@mozilla.org/inspector/flasher;1'].createInstance(Ci.inIFlasher);
        flasher.color = '#FF0000';
        flasher.thickness = 2;
    }   
    return flasher;
}
/**
 * @param {Node} aNode
 */
function blink(aNode){
    if (aNode.nodeType == 3) aNode = aNode.parentNode;
    var toggle = true;
    var flasher = getFlasher();
    function setOutline(){
        if(toggle){
            flasher.drawElementOutline(aNode);
        }else {
            flasher.repaintElement(aNode);
        }   
        toggle = !toggle;
    }   
    for (var i=1; i<7; ++i){
        setTimeout(setOutline, i * 100);
    }   
}
vimperator.commands.add(new vimperator.Command(['xpathb[link]','xb'],
    function(expression){
        var result
        try {
            result = vimperator.buffer.evaluateXPath(expression);
        } catch(e) {
            vimperator.echoerr('XPath blink: ' + e); 
        }   
        if (!result.snapshotLength){
            vimperator.echoerr('XPath blink: none');
            return;
        }   
        for (var i=0; i<result.snapshotLength; i++){
            blink(result.snapshotItem(i));
        }   
    },{ 
        usage: ['xpathb[link] [EXPRESSION]','xb [EXPERSSION]'],
        shortHelp: 'XPath blink nodes',
        help: 'Search nodes with XPath [EXPRESSION] and blink the nodes'
    }   
));
})();