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f785d81c41
The "qt" object may be undefined at the time QWebEngineScript that creates web channel is being run. Try to create the web channel until it finally succeeds in 100ms intervals. Fixes the "Uncaught ReferenceError: qt is not defined" error message.
289 lines
13 KiB
C++
289 lines
13 KiB
C++
/* ============================================================
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* QupZilla - WebKit based browser
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* Copyright (C) 2015-2016 David Rosca <nowrep@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* ============================================================ */
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#include "scripts.h"
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#include "qztools.h"
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#include <QUrlQuery>
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QString Scripts::setupWebChannel()
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{
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QString source = QL1S("(function() {"
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"%1"
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""
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"function registerExternal(e) {"
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" window.external = e;"
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" if (window.external) {"
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" var event = document.createEvent('Event');"
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" event.initEvent('_qupzilla_external_created', true, true);"
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" document.dispatchEvent(event);"
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" }"
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"}"
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""
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"if (self !== top) {"
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" if (top.external)"
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" registerExternal(top.external);"
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" else"
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" top.document.addEventListener('_qupzilla_external_created', function() {"
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" registerExternal(top.external);"
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" });"
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" return;"
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"}"
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""
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"function registerWebChannel() {"
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" try {"
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" new QWebChannel(qt.webChannelTransport, function(channel) {"
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" registerExternal(channel.objects.qz_object);"
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" });"
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" } catch (e) {"
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" setTimeout(registerWebChannel, 100);"
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" }"
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"}"
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"registerWebChannel();"
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""
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"})()");
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return source.arg(QzTools::readAllFileContents(QSL(":/html/qwebchannel.js")));
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}
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QString Scripts::setupFormObserver()
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{
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QString source = QL1S("(function() {"
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"function findUsername(inputs) {"
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" for (var i = 0; i < inputs.length; ++i)"
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" if (inputs[i].type == 'text' && inputs[i].value.length && inputs[i].name.indexOf('user') != -1)"
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" return inputs[i].value;"
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" for (var i = 0; i < inputs.length; ++i)"
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" if (inputs[i].type == 'text' && inputs[i].value.length && inputs[i].name.indexOf('name') != -1)"
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" return inputs[i].value;"
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" for (var i = 0; i < inputs.length; ++i)"
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" if (inputs[i].type == 'text' && inputs[i].value.length)"
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" return inputs[i].value;"
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" for (var i = 0; i < inputs.length; ++i)"
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" if (inputs[i].type == 'email' && inputs[i].value.length)"
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" return inputs[i].value;"
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" return '';"
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"}"
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""
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"function registerForm(form) {"
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" form.addEventListener('submit', function() {"
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" var form = this;"
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" var data = '';"
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" var password = '';"
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" var inputs = form.getElementsByTagName('input');"
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" for (var i = 0; i < inputs.length; ++i) {"
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" var input = inputs[i];"
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" var type = input.type.toLowerCase();"
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" if (type != 'text' && type != 'password' && type != 'email')"
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" continue;"
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" if (!password && type == 'password')"
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" password = input.value;"
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" data += encodeURIComponent(input.name);"
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" data += '=';"
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" data += encodeURIComponent(input.value);"
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" data += '&';"
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" }"
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" if (!password)"
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" return;"
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" data = data.substring(0, data.length - 1);"
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" var url = window.location.href;"
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" var username = findUsername(inputs);"
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" external.autoFill.formSubmitted(url, username, password, data);"
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" }, true);"
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"}"
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""
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"for (var i = 0; i < document.forms.length; ++i)"
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" registerForm(document.forms[i]);"
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""
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"var observer = new MutationObserver(function(mutations) {"
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" for (var i = 0; i < mutations.length; ++i)"
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" for (var j = 0; j < mutations[i].addedNodes.length; ++j)"
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" if (mutations[i].addedNodes[j].tagName == 'form')"
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" registerForm(mutations[i].addedNodes[j]);"
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"});"
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"observer.observe(document.documentElement, { childList: true });"
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""
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"})()");
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return source;
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}
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QString Scripts::setCss(const QString &css)
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{
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QString source = QL1S("(function() {"
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"var css = document.createElement('style');"
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"css.setAttribute('type', 'text/css');"
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"css.appendChild(document.createTextNode('%1'));"
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"document.getElementsByTagName('head')[0].appendChild(css);"
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"})()");
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QString style = css;
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style.replace(QL1S("'"), QL1S("\\'"));
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style.replace(QL1S("\n"), QL1S("\\n"));
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return source.arg(style);
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}
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QString Scripts::sendPostData(const QUrl &url, const QByteArray &data)
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{
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QString source = QL1S("(function() {"
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"var form = document.createElement('form');"
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"form.setAttribute('method', 'POST');"
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"form.setAttribute('action', '%1');"
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"var val;"
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"%2"
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"form.submit();"
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"})()");
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QString valueSource = QL1S("val = document.createElement('input');"
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"val.setAttribute('type', 'hidden');"
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"val.setAttribute('name', '%1');"
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"val.setAttribute('value', '%2');"
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"form.appendChild(val);");
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QString values;
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QUrlQuery query(data);
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const auto &queryItems = query.queryItems(QUrl::FullyDecoded);
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for (int i = 0; i < queryItems.size(); ++i) {
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const auto &pair = queryItems[i];
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QString value = pair.first;
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QString key = pair.second;
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value.replace(QL1S("'"), QL1S("\\'"));
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key.replace(QL1S("'"), QL1S("\\'"));
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values.append(valueSource.arg(value, key));
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}
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return source.arg(url.toString(), values);
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}
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QString Scripts::completeFormData(const QByteArray &data)
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{
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QString source = QL1S("(function() {"
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"var data = '%1'.split('&');"
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"var inputs = document.getElementsByTagName('input');"
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""
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"for (var i = 0; i < data.length; ++i) {"
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" var pair = data[i].split('=');"
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" if (pair.length != 2)"
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" continue;"
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" var key = decodeURIComponent(pair[0]);"
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" var val = decodeURIComponent(pair[1]);"
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" for (var j = 0; j < inputs.length; ++j) {"
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" var input = inputs[j];"
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" var type = input.type.toLowerCase();"
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" if (type != 'text' && type != 'password' && type != 'email')"
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" continue;"
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" if (input.name == key)"
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" input.value = val;"
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" }"
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"}"
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""
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"})()");
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QString d = data;
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d.replace(QL1S("'"), QL1S("\\'"));
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return source.arg(d);
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}
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QString Scripts::getOpenSearchLinks()
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{
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QString source = QL1S("(function() {"
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"var out = [];"
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"var links = document.getElementsByTagName('link');"
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"for (var i = 0; i < links.length; ++i) {"
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" var e = links[i];"
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" if (e.type == 'application/opensearchdescription+xml') {"
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" out.push({"
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" url: e.href,"
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" title: e.title"
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" });"
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" }"
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"}"
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"return out;"
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"})()");
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return source;
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}
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QString Scripts::getAllImages()
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{
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QString source = QL1S("(function() {"
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"var out = [];"
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"var imgs = document.getElementsByTagName('img');"
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"for (var i = 0; i < imgs.length; ++i) {"
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" var e = imgs[i];"
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" out.push({"
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" src: e.src,"
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" alt: e.alt"
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" });"
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"}"
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"return out;"
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"})()");
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return source;
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}
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QString Scripts::getAllMetaAttributes()
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{
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QString source = QL1S("(function() {"
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"var out = [];"
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"var meta = document.getElementsByTagName('meta');"
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"for (var i = 0; i < meta.length; ++i) {"
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" var e = meta[i];"
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" out.push({"
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" name: e.getAttribute('name'),"
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" content: e.getAttribute('content'),"
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" httpequiv: e.getAttribute('http-equiv')"
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" });"
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"}"
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"return out;"
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"})()");
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return source;
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}
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QString Scripts::getFormData(const QPoint &pos)
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{
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QString source = QL1S("(function() {"
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"var e = document.elementFromPoint(%1, %2);"
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"if (!e || e.tagName != 'INPUT')"
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" return;"
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"var fe = e.parentElement;"
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"while (fe) {"
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" if (fe.tagName == 'FORM')"
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" break;"
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" fe = fe.parentElement;"
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"}"
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"if (!fe)"
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" return;"
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"var res = {"
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" method: fe.method.toLowerCase(),"
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" action: fe.action,"
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" inputName: e.name,"
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" inputs: [],"
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"};"
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"for (var i = 0; i < fe.length; ++i) {"
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" var input = fe.elements[i];"
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" res.inputs.push([input.name, input.value]);"
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"}"
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"return res;"
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"})()");
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return source.arg(pos.x()).arg(pos.y());
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}
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