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//=============================================================================
//
// File : HelpWidget.cpp
// Creation date : Thu Aug 10 2000 17:42:12 by Szymon Stefanek
//
// This file is part of the KVIrc IRC client distribution
// Copyright (C) 2000-2010 Szymon Stefanek (pragma at kvirc dot net)
//
// This program is FREE software. You can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the HOPE that it will be USEFUL,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, write to the Free Software Foundation,
// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=============================================================================
#include "HelpWidget.h"
#include "HelpWindow.h"
#include "KviMainWindow.h"
#include "KviIconManager.h"
#include "KviLocale.h"
#include "KviApplication.h"
#include "KviMessageBox.h"
#include "KviModule.h"
#include "KviFileUtils.h"
#include <QToolButton>
#include <QLineEdit>
#include <QToolTip>
#include <QTimer>
#include <QClipboard>
#include <QDir>
extern HelpIndex * g_pDocIndex;
extern KviPointerList<HelpWindow> * g_pHelpWindowList;
extern KviPointerList<HelpWidget> * g_pHelpWidgetList;
#ifdef COMPILE_WEBKIT_SUPPORT
#include <QShortcut>
#include <QAction>
#define HIGHLIGHT_FLAGS QWebPage::HighlightAllOccurrences
HelpWidget::HelpWidget(QWidget * par, bool bIsStandalone)
: QWidget(par)
{
setObjectName("help_widget");
setMinimumWidth(80);
if(bIsStandalone)
g_pHelpWidgetList->append(this);
m_bIsStandalone = bIsStandalone;
new QShortcut(QKeySequence::Copy, this, SLOT(slotCopy()), nullptr, Qt::WidgetWithChildrenShortcut);
new QShortcut(QKeySequence::Find, this, SLOT(slotShowHideFind()), nullptr, bIsStandalone ? Qt::WidgetWithChildrenShortcut : Qt::WindowShortcut);
// layout
m_pLayout = new QVBoxLayout(this);
m_pLayout->setMargin(0);
m_pLayout->setSpacing(0);
setLayout(m_pLayout);
// upper toolbar
m_pToolBar = new QToolBar(this);
m_pLayout->addWidget(m_pToolBar);
// webview
m_pTextBrowser = new QWebView(this);
m_pTextBrowser->setObjectName("text_browser");
m_pTextBrowser->setStyleSheet("QTextBrowser { background-color:white; color:black; }");
m_pLayout->addWidget(m_pTextBrowser);
connect(m_pTextBrowser, SIGNAL(loadFinished(bool)), this, SLOT(slotLoadFinished(bool)));
// lower toolbar
m_pToolBarHighlight = new QToolBar(this);
m_pLayout->addWidget(m_pToolBarHighlight);
m_pToolBarHighlight->hide();
QLabel * pHighlightLabel = new QLabel();
pHighlightLabel->setText(__tr2qs("Highlight: "));
m_pToolBarHighlight->addWidget(pHighlightLabel);
m_pFindText = new QLineEdit();
m_pToolBarHighlight->addWidget(m_pFindText);
connect(m_pFindText, SIGNAL(textChanged(const QString)), this, SLOT(slotTextChanged(const QString)));
m_pToolBarHighlight->addAction(*g_pIconManager->getSmallIcon(KviIconManager::Discard), __tr2qs("Reset"), this, SLOT(slotResetFind()));
m_pToolBarHighlight->addAction(*g_pIconManager->getSmallIcon(KviIconManager::Part), __tr2qs("Find previous"), this, SLOT(slotFindPrev()));
m_pToolBarHighlight->addAction(*g_pIconManager->getSmallIcon(KviIconManager::Join), __tr2qs("Find next"), this, SLOT(slotFindNext()));
// upper toolbar contents (depends on webview)
QLabel * pBrowsingLabel = new QLabel();
pBrowsingLabel->setText(__tr2qs("Browsing: "));
m_pToolBar->addWidget(pBrowsingLabel);
m_pToolBar->addAction(*g_pIconManager->getBigIcon(KVI_BIGICON_HELPINDEX), __tr2qs("Show index"), this, SLOT(showIndex()));
QAction * pAction;
pAction = m_pTextBrowser->pageAction(QWebPage::Back);
pAction->setIcon(*g_pIconManager->getBigIcon(KVI_BIGICON_HELPBACK));
m_pToolBar->addAction(pAction);
pAction = m_pTextBrowser->pageAction(QWebPage::Forward);
pAction->setIcon(*g_pIconManager->getBigIcon(KVI_BIGICON_HELPFORWARD));
m_pToolBar->addAction(pAction);
m_pToolBar->addAction(*(g_pIconManager->getSmallIcon(KviIconManager::Plus)), __tr2qs("Zoom in"), this, SLOT(slotZoomIn()));
m_pToolBar->addAction(*(g_pIconManager->getSmallIcon(KviIconManager::Minus)), __tr2qs("Zoom out"), this, SLOT(slotZoomOut()));
if(bIsStandalone)
{
setAttribute(Qt::WA_DeleteOnClose);
m_pToolBar->addAction(*g_pIconManager->getBigIcon(KVI_BIGICON_HELPCLOSE), __tr2qs("Close"), this, SLOT(close()));
}
}
void HelpWidget::slotCopy()
{
m_pTextBrowser->triggerPageAction(QWebPage::Copy);
}
void HelpWidget::slotShowHideFind()
{
if(m_pToolBarHighlight->isVisible())
{
m_pToolBarHighlight->hide();
}
else
{
m_pToolBarHighlight->show();
m_pFindText->setFocus();
}
}
void HelpWidget::slotLoadFinished(bool)
{
m_pTextBrowser->findText(m_pFindText->text(), HIGHLIGHT_FLAGS);
}
void HelpWidget::slotTextChanged(const QString szFind)
{
m_pTextBrowser->findText("", HIGHLIGHT_FLAGS);
m_pTextBrowser->findText(szFind, HIGHLIGHT_FLAGS);
}
void HelpWidget::slotResetFind()
{
m_pFindText->setText("");
m_pTextBrowser->findText("", HIGHLIGHT_FLAGS);
}
void HelpWidget::slotFindPrev()
{
m_pTextBrowser->findText(m_pFindText->text(), QWebPage::FindBackward);
}
void HelpWidget::slotFindNext()
{
m_pTextBrowser->findText(m_pFindText->text());
}
void HelpWidget::slotZoomIn()
{
kvs_real_t dZoom = m_pTextBrowser->zoomFactor();
if(dZoom >= 2)
return;
dZoom += 0.05;
m_pTextBrowser->setZoomFactor(dZoom);
}
void HelpWidget::slotZoomOut()
{
kvs_real_t dZoom = m_pTextBrowser->zoomFactor();
if(dZoom <= 0.5)
return;
dZoom -= 0.05;
m_pTextBrowser->setZoomFactor(dZoom);
}
#else
HelpWidget::HelpWidget(QWidget * par, bool bIsStandalone)
: QWidget(par)
{
setObjectName("help_widget");
setMinimumWidth(80);
if(bIsStandalone)
g_pHelpWidgetList->append(this);
m_bIsStandalone = bIsStandalone;
m_pTextBrowser = new QTextBrowser(this);
m_pTextBrowser->setObjectName("text_browser");
m_pTextBrowser->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken);
m_pTextBrowser->setStyleSheet("QTextBrowser { background-color:white; color:black; }");
m_pToolBar = new KviTalHBox(this);
m_pBtnIndex = new QToolButton(m_pToolBar);
m_pBtnIndex->setIcon(*g_pIconManager->getBigIcon(KVI_BIGICON_HELPINDEX));
connect(m_pBtnIndex, SIGNAL(clicked()), this, SLOT(showIndex()));
m_pBtnBackward = new QToolButton(m_pToolBar);
m_pBtnBackward->setIcon(*g_pIconManager->getBigIcon(KVI_BIGICON_HELPBACK));
connect(m_pBtnBackward, SIGNAL(clicked()), m_pTextBrowser, SLOT(backward()));
m_pBtnBackward->setEnabled(false);
m_pBtnForward = new QToolButton(m_pToolBar);
m_pBtnForward->setIcon(*g_pIconManager->getBigIcon(KVI_BIGICON_HELPFORWARD));
connect(m_pBtnForward, SIGNAL(clicked()), m_pTextBrowser, SLOT(forward()));
m_pBtnForward->setEnabled(false);
QWidget * pSpacer = new QWidget(m_pToolBar);
if(bIsStandalone)
{
setAttribute(Qt::WA_DeleteOnClose);
QToolButton * b = new QToolButton(m_pToolBar);
b->setIcon(*g_pIconManager->getBigIcon(KVI_BIGICON_HELPCLOSE));
connect(b, SIGNAL(clicked()), this, SLOT(close()));
}
m_pToolBar->setStretchFactor(pSpacer, 1);
connect(m_pTextBrowser, SIGNAL(backwardAvailable(bool)), m_pBtnBackward, SLOT(setEnabled(bool)));
connect(m_pTextBrowser, SIGNAL(forwardAvailable(bool)), m_pBtnForward, SLOT(setEnabled(bool)));
}
#endif
HelpWidget::~HelpWidget()
{
if(m_bIsStandalone)
g_pHelpWidgetList->removeRef(this);
}
void HelpWidget::showIndex()
{
QString szHelpDir;
QDir dirHelp;
g_pApp->getGlobalKvircDirectory(szHelpDir, KviApplication::Help);
dirHelp = QDir(szHelpDir);
#ifdef COMPILE_WEBKIT_SUPPORT
m_pTextBrowser->load(QUrl::fromLocalFile(dirHelp.absoluteFilePath("index.html")));
#else
m_pTextBrowser->setSource(QUrl::fromLocalFile(dirHelp.absoluteFilePath("index.html")));
#endif
}
void HelpWidget::resizeEvent(QResizeEvent *)
{
int hght = m_pToolBar->sizeHint().height();
if(hght < 40)
hght = 40;
m_pToolBar->setGeometry(0, 0, width(), hght);
m_pTextBrowser->setGeometry(0, hght, width(), height() - hght);
}
QSize HelpWidget::sizeHint() const
{
int wdth = m_pTextBrowser->sizeHint().width();
if(m_pToolBar->sizeHint().width() > wdth)
wdth = m_pToolBar->sizeHint().width();
QSize s(wdth, m_pTextBrowser->sizeHint().height() + m_pToolBar->sizeHint().height());
return s;
}
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