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yadng.js
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yadng.js
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var _yadng = {};
var _url_regex_0 = /[a-zA-Z]+:\/\/[^\s]*/;
var _url_regex_1 = /[^\s]*\.(com|net|org|gov|edu|info|uk|hk|cn|au|ca|de|fr|jp|kr|tw|ru|us)[^\s]*/;
var _url_regex_2 = /^javascript:/;
var _dragstart = function(e) {
_yadng.isSearch = false;
_yadng.startX = e.x;
_yadng.startY = e.y;
var el = e.srcElement;
if (el.nodeName == 'A') {
if (!el.href.match(_url_regex_2)) {// NOT href="javascript:
_yadng.selection = el.href;
}
} else if (el.nodeName == 'IMG') {
_yadng.selection = el.src;// img src
var pn = el.parentNode; // if <a><img/></a>
do {
if (pn.nodeName == 'A') {
if (!pn.href.match(_url_regex_2)) {// NOT href="javascript:
_yadng.selection = pn.href;
}
break;
}
pn = pn.parentNode;
} while (pn);
} else {
var t = window.getSelection().toString();
var m = t.match(_url_regex_0);
if (m) {// text with url link
_yadng.selection = m[0];
} else {
m = t.match(_url_regex_1);
if (m) {// text with url link
_yadng.selection = 'http://' + m[0];
} else {// text for search
_yadng.isSearch = true;
_yadng.selection = encodeURIComponent(t);
}
}
}
return false;
};
var _dragover = function(e) {
if (e.preventDefault) {
e.preventDefault();
}
return false;
};
var _drop = function(e) {
if (e.stopPropagation) {
e.stopPropagation();
}
if (_yadng.selection) {
_yadng.endX = e.x;
_yadng.endY = e.y;
chrome.runtime.connect().postMessage(_yadng);
}
return false;
};
var _doYadng = function(_yadng) {
chrome.tabs.getSelected(null, function(tab) {
if (_yadng.isSearch) {
_doSearch(_yadng, tab);
} else {
_doLink(_yadng, tab);
}
});
};
var _doSearch = function(_yadng, tab) {
chrome.storage.sync.get(['searchEngines'], function(r) {
var se = 0;
if (_yadng.endX > _yadng.startX) {
se = _yadng.endY > _yadng.startY ? 3 : 1;
} else {
se = _yadng.endY > _yadng.startY ? 2 : 0;
}
var url;
if (-1 == r.searchEngines[se].id) { // user search engines
url = r.searchEngines[se].url.replace('%s',
_yadng.selection);
} else { // build-in
url = _build_in_seach_engines[r.searchEngines[se].id].url
.replace('%s', _yadng.selection);
}
chrome.tabs.create({
'url' : url,
'active' : false,
'index' : tab.index + 1
});
});
};
var _doLink = function(_yadng, tab) {
chrome.storage.sync.get(['indexMode', 'selectedMode'], function(r) {
var ti = tab.index;
var index = ti + 1;
if (r.indexMode == '2') {
index = _yadng.endX > _yadng.startX ? ti + 1 : ti;
} else {
index = r.indexMode == '0' ? ti + 1 : ti;
}
var selected = false;
if (r.selectedMode == '2') {
selected = _yadng.endY > _yadng.startY ? false : true;
} else {
selected = r.selectedMode == '0' ? true : false;
}
chrome.tabs.create({
'url' : _yadng.selection,
'active' : selected,
'index' : index
});
});
};
chrome.runtime.onConnect.addListener(function(port) {
port.onMessage.addListener(_doYadng);
});
document.addEventListener('dragstart', _dragstart, false);
document.addEventListener('dragover', _dragover, false);
document.addEventListener('drop', _drop, false);