author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 18 Aug 2010 09:40:07 +0300 | |
changeset 77 | 4b195f3bea29 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Example of home screen widget |
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* |
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*/ |
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|
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#include <QDebug> |
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#include <QGraphicsLinearLayout> |
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#include <QGraphicsWebView> |
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#include <HbPushButton> |
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#include <HbLineEdit> |
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#include <HbFrameDrawer> |
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#include <HbFrameItem> |
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#include <HbDeviceProfile> |
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#include "minibrowserwidget.h" |
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|
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/*! |
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\ingroup group_minibrowser_widget |
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\class MiniBrowserWidget |
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\brief Example implementation for home screen widget. |
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|
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MiniBrowserWidget derived from the HbWidget and implements |
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needed functions for the home screen widget. |
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As name suggests MiniBrowserWidget is a small web browser widget in |
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the home screen. |
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|
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Mini browser widget demonstrates the following home screen widget features: |
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<ol> |
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<li> home screen online/offline state, see \ref sssection_isonline </li> |
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<li> preferences, see \ref sssection_setpreferences </li> |
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</ol> |
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It also shows use of HbPushButton and HbLineEdit widgets. |
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@image html hs_minibrowser.png |
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*/ |
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|
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/*! |
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Constructs a widget which is a child of \a parent, with widget flags set to \a flags. |
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Widget creates two buttons ('go' and 'stop'), text field to write url and browser view. |
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Note that this is just an simple example so this creates child widgets directly to the layout. |
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For more complicated widget layouting, see Orbit documentation and especially WidgetML section of it. |
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*/ |
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MiniBrowserWidget::MiniBrowserWidget(QGraphicsItem* parent, Qt::WindowFlags flags) |
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: HbWidget(parent, flags) |
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{ |
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QGraphicsLinearLayout *layout = new QGraphicsLinearLayout(Qt::Vertical); |
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setLayout(layout); |
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QGraphicsLinearLayout *buttonLayout = new QGraphicsLinearLayout(Qt::Horizontal); |
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mGoButton = new HbPushButton("Go"); |
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connect(mGoButton, SIGNAL(pressed()), SLOT(pressGoButton())); |
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buttonLayout->addItem(mGoButton); |
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mStopButton = new HbPushButton("Stop"); |
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connect(mStopButton, SIGNAL(pressed()), SLOT(pressStopButton())); |
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buttonLayout->addItem(mStopButton); |
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mStopButton->setEnabled(false); |
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mEditor = new HbLineEdit(); |
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buttonLayout->addItem(mEditor); |
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layout->addItem(buttonLayout); |
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mWeb = new QGraphicsWebView(); |
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layout->addItem(mWeb); |
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connect(mWeb, SIGNAL(loadStarted()), SLOT(loadStarted())); |
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connect(mWeb, SIGNAL(loadProgress(int)), SLOT(loadProgress(int))); |
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connect(mWeb, SIGNAL(loadFinished(bool)), SLOT(loadFinished(bool))); |
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// maximum size of the home screen widget is (48,39) units. Convert units to pixels and |
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// resize minibrowser as maximum size |
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HbFrameDrawer *drawer = new HbFrameDrawer( |
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QLatin1String("qtg_fr_hsshortcut_normal"), HbFrameDrawer::NinePieces); |
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setBackgroundItem(new HbFrameItem(drawer)); |
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HbDeviceProfile profile; |
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qreal factor = profile.unitValue(); |
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setPreferredSize(48*factor, 39*factor); |
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resize(preferredSize()); |
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mUrl = QString("http://www.nokia.com"); |
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} |
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/*! |
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Destructor |
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*/ |
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MiniBrowserWidget::~MiniBrowserWidget() |
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{ |
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} |
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/*! |
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Returns widget's online state |
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*/ |
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// Start of snippet 1 |
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bool MiniBrowserWidget::isOnline() |
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{ |
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return mOnline; |
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} |
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|
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/*! |
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Sets online state of the widget as \a online |
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*/ |
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void MiniBrowserWidget::setOnline(bool online) |
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115 |
{ |
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mOnline = online; |
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} |
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// End of snippet 1 |
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|
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/*! |
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Returns url of the widget currently showing. |
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*/ |
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// Start of snippet 2 |
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QString MiniBrowserWidget::url() const |
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{ |
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return mUrl; |
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} |
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|
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/*! |
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Sets url of the widget as \a url |
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*/ |
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void MiniBrowserWidget::setUrl(const QString& url) |
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{ |
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mUrl = url; |
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} |
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// End of snippet 2 |
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137 |
|
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/*! |
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Called when widget is initialized and all to properties are set |
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*/ |
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void MiniBrowserWidget::onInitialize() |
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{ |
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mGoButton->setEnabled(mOnline); |
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mEditor->setText(mUrl); |
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} |
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|
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/*! |
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Called when widget is shown in the home screen |
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*/ |
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// Start of snippet 3 |
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void MiniBrowserWidget::onShow() |
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{ |
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if (mOnline) { |
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mWeb->load(QUrl(mUrl)); |
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mStopButton->setEnabled(true); |
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} |
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} |
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// End of snippet 3 |
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159 |
|
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/*! |
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Called when widget is hidden from the home screen. |
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Widget can decide what is appropriate action when |
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widget is not visible on the screen. At least it |
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should not update itself as often as when on the |
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screen to save battery etc. |
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*/ |
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// Start of snippet 4 |
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void MiniBrowserWidget::onHide() |
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{ |
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mWeb->stop(); |
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} |
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// End of snippet 4 |
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|
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/*! |
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Slot connected to 'go' button |
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*/ |
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// Start of snippet 5 |
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void MiniBrowserWidget::pressGoButton() |
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{ |
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setUrl(mEditor->text()); |
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if (mOnline) { |
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mWeb->load(QUrl(mUrl)); |
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mStopButton->setEnabled(true); |
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} |
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QStringList list; |
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list.append("url"); |
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emit setPreferences(list); |
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} |
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// End of snippet 5 |
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|
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/*! |
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Slot connected to 'stop' button |
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*/ |
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void MiniBrowserWidget::pressStopButton() |
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{ |
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mWeb->stop(); |
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//mStopButton->setEnabled(false); |
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} |
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|
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/*! |
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Slot connected to webview's loadProgress signal |
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TODO: check if this is needed. |
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*/ |
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void MiniBrowserWidget::loadProgress(int progress) |
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{ |
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Q_UNUSED(progress) |
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qDebug() << progress; |
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} |
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|
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/*! |
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Slot connected to webview's loadFinished signal |
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*/ |
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void MiniBrowserWidget::loadFinished(bool ok) |
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{ |
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Q_UNUSED(ok) |
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mStopButton->setEnabled(false); |
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} |
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void MiniBrowserWidget::loadStarted() |
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{ |
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} |
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