summaryrefslogtreecommitdiffstats
path: root/examples/network/googlesuggest
diff options
context:
space:
mode:
authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit38be0d13830efd2d98281c645c3a60afe05ffece (patch)
tree6ea73f3ec77f7d153333779883e8120f82820abe /examples/network/googlesuggest
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
Diffstat (limited to 'examples/network/googlesuggest')
-rw-r--r--examples/network/googlesuggest/googlesuggest.cpp234
-rw-r--r--examples/network/googlesuggest/googlesuggest.h81
-rw-r--r--examples/network/googlesuggest/googlesuggest.pro9
-rw-r--r--examples/network/googlesuggest/main.cpp51
-rw-r--r--examples/network/googlesuggest/searchbox.cpp72
-rw-r--r--examples/network/googlesuggest/searchbox.h65
6 files changed, 512 insertions, 0 deletions
diff --git a/examples/network/googlesuggest/googlesuggest.cpp b/examples/network/googlesuggest/googlesuggest.cpp
new file mode 100644
index 0000000000..ed9ff6a20e
--- /dev/null
+++ b/examples/network/googlesuggest/googlesuggest.cpp
@@ -0,0 +1,234 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+//! [1]
+#include "googlesuggest.h"
+
+#define GSUGGEST_URL "http://google.com/complete/search?output=toolbar&q=%1"
+//! [1]
+
+//! [2]
+GSuggestCompletion::GSuggestCompletion(QLineEdit *parent): QObject(parent), editor(parent)
+{
+ popup = new QTreeWidget;
+ popup->setWindowFlags(Qt::Popup);
+ popup->setFocusPolicy(Qt::NoFocus);
+ popup->setFocusProxy(parent);
+ popup->setMouseTracking(true);
+
+ popup->setColumnCount(2);
+ popup->setUniformRowHeights(true);
+ popup->setRootIsDecorated(false);
+ popup->setEditTriggers(QTreeWidget::NoEditTriggers);
+ popup->setSelectionBehavior(QTreeWidget::SelectRows);
+ popup->setFrameStyle(QFrame::Box | QFrame::Plain);
+ popup->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+ popup->header()->hide();
+
+ popup->installEventFilter(this);
+
+ connect(popup, SIGNAL(itemClicked(QTreeWidgetItem*,int)),
+ SLOT(doneCompletion()));
+
+ timer = new QTimer(this);
+ timer->setSingleShot(true);
+ timer->setInterval(500);
+ connect(timer, SIGNAL(timeout()), SLOT(autoSuggest()));
+ connect(editor, SIGNAL(textEdited(QString)), timer, SLOT(start()));
+
+ connect(&networkManager, SIGNAL(finished(QNetworkReply*)),
+ this, SLOT(handleNetworkData(QNetworkReply*)));
+
+}
+//! [2]
+
+//! [3]
+GSuggestCompletion::~GSuggestCompletion()
+{
+ delete popup;
+}
+//! [3]
+
+//! [4]
+bool GSuggestCompletion::eventFilter(QObject *obj, QEvent *ev)
+{
+ if (obj != popup)
+ return false;
+
+ if (ev->type() == QEvent::MouseButtonPress) {
+ popup->hide();
+ editor->setFocus();
+ return true;
+ }
+
+ if (ev->type() == QEvent::KeyPress) {
+
+ bool consumed = false;
+ int key = static_cast<QKeyEvent*>(ev)->key();
+ switch (key) {
+ case Qt::Key_Enter:
+ case Qt::Key_Return:
+ doneCompletion();
+ consumed = true;
+
+ case Qt::Key_Escape:
+ editor->setFocus();
+ popup->hide();
+ consumed = true;
+
+ case Qt::Key_Up:
+ case Qt::Key_Down:
+ case Qt::Key_Home:
+ case Qt::Key_End:
+ case Qt::Key_PageUp:
+ case Qt::Key_PageDown:
+ break;
+
+ default:
+ editor->setFocus();
+ editor->event(ev);
+ popup->hide();
+ break;
+ }
+
+ return consumed;
+ }
+
+ return false;
+}
+//! [4]
+
+//! [5]
+void GSuggestCompletion::showCompletion(const QStringList &choices, const QStringList &hits)
+{
+
+ if (choices.isEmpty() || choices.count() != hits.count())
+ return;
+
+ const QPalette &pal = editor->palette();
+ QColor color = pal.color(QPalette::Disabled, QPalette::WindowText);
+
+ popup->setUpdatesEnabled(false);
+ popup->clear();
+ for (int i = 0; i < choices.count(); ++i) {
+ QTreeWidgetItem * item;
+ item = new QTreeWidgetItem(popup);
+ item->setText(0, choices[i]);
+ item->setText(1, hits[i]);
+ item->setTextAlignment(1, Qt::AlignRight);
+ item->setTextColor(1, color);
+ }
+ popup->setCurrentItem(popup->topLevelItem(0));
+ popup->resizeColumnToContents(0);
+ popup->resizeColumnToContents(1);
+ popup->adjustSize();
+ popup->setUpdatesEnabled(true);
+
+ int h = popup->sizeHintForRow(0) * qMin(7, choices.count()) + 3;
+ popup->resize(popup->width(), h);
+
+ popup->move(editor->mapToGlobal(QPoint(0, editor->height())));
+ popup->setFocus();
+ popup->show();
+}
+//! [5]
+
+//! [6]
+void GSuggestCompletion::doneCompletion()
+{
+ timer->stop();
+ popup->hide();
+ editor->setFocus();
+ QTreeWidgetItem *item = popup->currentItem();
+ if (item) {
+ editor->setText(item->text(0));
+ QMetaObject::invokeMethod(editor, "returnPressed");
+ }
+}
+//! [6]
+
+//! [7]
+void GSuggestCompletion::autoSuggest()
+{
+ QString str = editor->text();
+ QString url = QString(GSUGGEST_URL).arg(str);
+ networkManager.get(QNetworkRequest(QString(url)));
+}
+//! [7]
+
+//! [8]
+void GSuggestCompletion::preventSuggest()
+{
+ timer->stop();
+}
+//! [8]
+
+//! [9]
+void GSuggestCompletion::handleNetworkData(QNetworkReply *networkReply)
+{
+ QUrl url = networkReply->url();
+ if (!networkReply->error()) {
+ QStringList choices;
+ QStringList hits;
+
+ QByteArray response(networkReply->readAll());
+ QXmlStreamReader xml(response);
+ while (!xml.atEnd()) {
+ xml.readNext();
+ if (xml.tokenType() == QXmlStreamReader::StartElement)
+ if (xml.name() == "suggestion") {
+ QStringRef str = xml.attributes().value("data");
+ choices << str.toString();
+ }
+ if (xml.tokenType() == QXmlStreamReader::StartElement)
+ if (xml.name() == "num_queries") {
+ QStringRef str = xml.attributes().value("int");
+ hits << str.toString();
+ }
+ }
+
+ showCompletion(choices, hits);
+ }
+
+ networkReply->deleteLater();
+}
+//! [9]
+
diff --git a/examples/network/googlesuggest/googlesuggest.h b/examples/network/googlesuggest/googlesuggest.h
new file mode 100644
index 0000000000..a5d268a126
--- /dev/null
+++ b/examples/network/googlesuggest/googlesuggest.h
@@ -0,0 +1,81 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef GOOGLESUGGEST_H
+#define GOOGLESUGGEST_H
+
+#include <QtGui>
+#include <QtNetwork>
+#include <QObject>
+
+QT_BEGIN_NAMESPACE
+class QLineEdit;
+class QNetworkReply;
+class QTimer;
+class QTreeWidget;
+QT_END_NAMESPACE
+
+//! [1]
+class GSuggestCompletion : public QObject
+{
+ Q_OBJECT
+
+public:
+ GSuggestCompletion(QLineEdit *parent = 0);
+ ~GSuggestCompletion();
+ bool eventFilter(QObject *obj, QEvent *ev);
+ void showCompletion(const QStringList &choices, const QStringList &hits);
+
+public slots:
+
+ void doneCompletion();
+ void preventSuggest();
+ void autoSuggest();
+ void handleNetworkData(QNetworkReply *networkReply);
+
+private:
+ QLineEdit *editor;
+ QTreeWidget *popup;
+ QTimer *timer;
+ QNetworkAccessManager networkManager;
+};
+//! [1]
+#endif // GOOGLESUGGEST_H
+
diff --git a/examples/network/googlesuggest/googlesuggest.pro b/examples/network/googlesuggest/googlesuggest.pro
new file mode 100644
index 0000000000..e118dc9c26
--- /dev/null
+++ b/examples/network/googlesuggest/googlesuggest.pro
@@ -0,0 +1,9 @@
+QT += network
+SOURCES = main.cpp searchbox.cpp googlesuggest.cpp
+HEADERS = searchbox.h googlesuggest.h
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/network/googlesuggest
+sources.files = $$SOURCES $$HEADERS *.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/network/googlesuggest
+INSTALLS += target sources
diff --git a/examples/network/googlesuggest/main.cpp b/examples/network/googlesuggest/main.cpp
new file mode 100644
index 0000000000..f20e8f6c0e
--- /dev/null
+++ b/examples/network/googlesuggest/main.cpp
@@ -0,0 +1,51 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+
+#include "searchbox.h"
+
+int main(int argc, char * argv[])
+{
+ QApplication app(argc, argv);
+ SearchBox *searchEdit = new SearchBox;
+ searchEdit->show();
+ return app.exec();
+}
diff --git a/examples/network/googlesuggest/searchbox.cpp b/examples/network/googlesuggest/searchbox.cpp
new file mode 100644
index 0000000000..cf22fd1369
--- /dev/null
+++ b/examples/network/googlesuggest/searchbox.cpp
@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QDesktopServices>
+#include <QUrl>
+
+#include "searchbox.h"
+#include "googlesuggest.h"
+
+#define GSEARCH_URL "http://www.google.com/search?q=%1"
+
+//! [1]
+SearchBox::SearchBox(QWidget *parent): QLineEdit(parent)
+{
+ completer = new GSuggestCompletion(this);
+
+ connect(this, SIGNAL(returnPressed()),this, SLOT(doSearch()));
+
+ setWindowTitle("Search with Google");
+
+ adjustSize();
+ resize(400, height());
+ setFocus();
+}
+//! [1]
+
+//! [2]
+void SearchBox::doSearch()
+{
+ completer->preventSuggest();
+ QString url = QString(GSEARCH_URL).arg(text());
+ QDesktopServices::openUrl(QUrl(url));
+}
+//! [2]
+
diff --git a/examples/network/googlesuggest/searchbox.h b/examples/network/googlesuggest/searchbox.h
new file mode 100644
index 0000000000..5ffcbc8614
--- /dev/null
+++ b/examples/network/googlesuggest/searchbox.h
@@ -0,0 +1,65 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef SEARCHBOX_H
+#define SEARCHBOX_H
+
+//! [1]
+#include <QLineEdit>
+
+class GSuggestCompletion;
+
+class SearchBox: public QLineEdit
+{
+ Q_OBJECT
+
+public:
+ SearchBox(QWidget *parent = 0);
+
+protected slots:
+ void doSearch();
+
+private:
+ GSuggestCompletion *completer;
+//! [1]
+};
+
+
+#endif // SEARCHBOX_H