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私の Chrome 拡張機能では、現在のタブ (content.js) から情報をスクレイピングし、それをパラメーターとして提供された URL (background.js) に送信しようとしています。入力タグの値を除いて、タブからすべてをスクレイピングして URL に追加できるようです。これが私のコードです：

content.js:

var elements = new Array("form","h1","input","td","textarea","time","title","var");
//declare an array for found elements
var foundElements = new Array();
//declare an array for found ids
var foundIds = new Array();
//this counter is used to hold positions in the element array.
var elementCounter = 0;
//this counter is used to hold positions in the foundIds array
var idsCounter = 0;
//this counter is used to hold positions in the classCounter array.
var classCounter = 0;

//and we're going to output everything in a giantic string.
var output = "URL=" + document.URL;

//scrape the page for all elements
for (var i = 0; i < elements.length; i++)
{
    var current = document.getElementsByTagName(elements[i]);
    if(current.length>0)
    {
        for (var z=0; z<current.length; z++)
        {
            var inTxt = current[z].innerText;
            output += "&" + elements[i] + "=" + inTxt;
        }
        elementCounter++;
        //now that we have an array of a tag, check it for IDs and classes.
        for (var y = 0; y<current.length; y++)
        {
            //check to see if the element has an id
            if(current[y].id)
            {
                //these should be unique
            var hit = false;
            for (var x = 0; x<foundIds.length; x++)
            {
                if(foundIds[x]==current[y].id)
                {
                    hit=true;
                }
            }

            //if there was no hit...
            if(!hit)
            {
                foundIds[idsCounter]=current[y].id;
                idsCounter++;
                var currVal = current[y].value;
                output+="&" + current[y].id + "=" + currVal;
            }
                    }
                    //now we pull the classes
            var classes = current[y].classList;
            if(classes.length>0)
            {
                for (var x = 0; x<classes.Length; x++)
                {
                    var hit = false;
                    for (var z = 0; z<foundClasses.length; z++)
                    {
                        if(foundClasses[z]==classes[x])
                        {
                            hit=true;
                        }
                    }

                    //if there was not a hit
                    if(!hit)
                    {
                        foundClasses[classCounter]=classes[x];
                        classCounter++;
                        output+="&" + classes[x] + "=";
                    }
                }
            }
        }
    }
}
chrome.runtime.sendMessage({data: output});

background.js:

var output2;
chrome.extension.onMessage.addListener(function(request, sender, sendResponse) {
    output2 = "text_input1=";
    output2 += request.data;
});

chrome.browserAction.onClicked.addListener(function() {
    chrome.tabs.create({url: "http://www.google.com?" + output2}, function(tab) {
        chrome.tabs.executeScript(tab.id, {file: "content.js"}, function() {
            sendMessage();
        });
    });
});

入力タグの値が空白として渡される理由を知っている人はいますか?

4

1 に答える 1

1

を使用して入力テキストを取得しようとしているためですcurrent[z].innerText。ただし、current[z].value入力には使用する必要があります。

于 2013-06-26T06:30:40.377 に答える