toolbarsearch.cpp
资源名称:browser.rar [点击查看]
上传用户:huahtool
上传日期:2015-12-10
资源大小:1089k
文件大小:5k
源码类别:
浏览器
开发平台:
Visual C++
- /****************************************************************************
- **
- ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
- ** This file is part of the demonstration applications of the Qt Toolkit.
- **
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- ** Licensees holding valid Qt Commercial licenses may use this file in
- ** accordance with the Qt Commercial License Agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and Nokia.
- **
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License versions 2.0 or 3.0 as published by the Free
- ** Software Foundation and appearing in the file LICENSE.GPL included in
- ** the packaging of this file. Please review the following information
- ** to ensure GNU General Public Licensing requirements will be met:
- ** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
- ** http://www.gnu.org/copyleft/gpl.html. In addition, as a special
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- ** are described in the Nokia Qt GPL Exception version 1.3, included in
- ** the file GPL_EXCEPTION.txt in this package.
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- #include "toolbarsearch.h"
- #include "autosaver.h"
- #include <QtCore/QSettings>
- #include <QtCore/QUrl>
- #include <QtGui/QCompleter>
- #include <QtGui/QMenu>
- #include <QtGui/QStringListModel>
- #include <QtWebKit/QWebSettings>
- /*
- ToolbarSearch is a very basic search widget that also contains a small history.
- Searches are turned into urls that use Google to perform search
- */
- ToolbarSearch::ToolbarSearch(QWidget *parent)
- : SearchLineEdit(parent)
- , m_autosaver(new AutoSaver(this))
- , m_maxSavedSearches(10)
- , m_stringListModel(new QStringListModel(this))
- {
- QMenu *m = menu();
- connect(m, SIGNAL(aboutToShow()), this, SLOT(aboutToShowMenu()));
- connect(m, SIGNAL(triggered(QAction*)), this, SLOT(triggeredMenuAction(QAction*)));
- QCompleter *completer = new QCompleter(m_stringListModel, this);
- completer->setCompletionMode(QCompleter::InlineCompletion);
- lineEdit()->setCompleter(completer);
- connect(lineEdit(), SIGNAL(returnPressed()), SLOT(searchNow()));
- setInactiveText(tr("Google"));
- load();
- }
- ToolbarSearch::~ToolbarSearch()
- {
- m_autosaver->saveIfNeccessary();
- }
- void ToolbarSearch::save()
- {
- QSettings settings;
- settings.beginGroup(QLatin1String("toolbarsearch"));
- settings.setValue(QLatin1String("recentSearches"), m_stringListModel->stringList());
- settings.setValue(QLatin1String("maximumSaved"), m_maxSavedSearches);
- settings.endGroup();
- }
- void ToolbarSearch::load()
- {
- QSettings settings;
- settings.beginGroup(QLatin1String("toolbarsearch"));
- QStringList list = settings.value(QLatin1String("recentSearches")).toStringList();
- m_maxSavedSearches = settings.value(QLatin1String("maximumSaved"), m_maxSavedSearches).toInt();
- m_stringListModel->setStringList(list);
- settings.endGroup();
- }
- void ToolbarSearch::searchNow()
- {
- QString searchText = lineEdit()->text();
- QStringList newList = m_stringListModel->stringList();
- if (newList.contains(searchText))
- newList.removeAt(newList.indexOf(searchText));
- newList.prepend(searchText);
- if (newList.size() >= m_maxSavedSearches)
- newList.removeLast();
- QWebSettings *globalSettings = QWebSettings::globalSettings();
- if (!globalSettings->testAttribute(QWebSettings::PrivateBrowsingEnabled)) {
- m_stringListModel->setStringList(newList);
- m_autosaver->changeOccurred();
- }
- QUrl url(QLatin1String("http://www.google.com/search"));
- url.addQueryItem(QLatin1String("q"), searchText);
- url.addQueryItem(QLatin1String("ie"), QLatin1String("UTF-8"));
- url.addQueryItem(QLatin1String("oe"), QLatin1String("UTF-8"));
- url.addQueryItem(QLatin1String("client"), QLatin1String("qtdemobrowser"));
- emit search(url);
- }
- void ToolbarSearch::aboutToShowMenu()
- {
- lineEdit()->selectAll();
- QMenu *m = menu();
- m->clear();
- QStringList list = m_stringListModel->stringList();
- if (list.isEmpty()) {
- m->addAction(tr("No Recent Searches"));
- return;
- }
- QAction *recent = m->addAction(tr("Recent Searches"));
- recent->setEnabled(false);
- for (int i = 0; i < list.count(); ++i) {
- QString text = list.at(i);
- m->addAction(text)->setData(text);
- }
- m->addSeparator();
- m->addAction(tr("Clear Recent Searches"), this, SLOT(clear()));
- }
- void ToolbarSearch::triggeredMenuAction(QAction *action)
- {
- QVariant v = action->data();
- if (v.canConvert<QString>()) {
- QString text = v.toString();
- lineEdit()->setText(text);
- searchNow();
- }
- }
- void ToolbarSearch::clear()
- {
- m_stringListModel->setStringList(QStringList());
- m_autosaver->changeOccurred();;
- }