weibo_page_delete.js

// Zhuochun
// 2013-12-15

function eventFire(el, etype) {
    if (el.fireEvent) {
        (el.fireEvent('on' + etype));
    } else {
        var evObj = document.createEvent('Events');
        evObj.initEvent(etype, true, false);
        el.dispatchEvent(evObj);
    }
}

// handle select delete tweets
var to_delete = [];

tweets = Array.prototype.slice.call(document.getElementsByClassName('WB_feed_type'), 0);
tweets.forEach(function (t) {
    t.style.border = '1px solid red';
    t.onclick = function (e) {
        if (e.currentTarget.style.border == '1px solid blue') {
              to_delete = to_delete.filter(function(i) { return i != e.currentTarget; });
              e.currentTarget.style.border = '1px solid red';
        } else {
            e.currentTarget.style.border = '1px solid blue';
            to_delete.push(e.currentTarget);    
        }
    };
});
                 
// add delete button
var btn = document.createElement('button');
btn.appendChild(document.createTextNode('Delete!'));
document.body.appendChild(btn);
btn.onclick = function () {
    to_delete.forEach(deleteTweet);
    // confirm delete
    Array.prototype.forEach.call(document.getElementsByClassName('W_layer'), confirmDelete);
};
                 
// delete a tweet
function deleteTweet(t) {
    var delete_btn = t.querySelector('[title="删除此条微博"]');
    eventFire(delete_btn, 'click');
}
                 
// confirm delete
function confirmDelete(t) {
    if (t.style.display != 'none') {
        eventFire(t.querySelector('a.W_btn_d[action-type="ok"]'), 'click');
    }
}