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/*
* Copyright (c) 2010 Remko Tronçon
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#include "QtChatView.h"
#include <QtDebug>
#include <QFile>
#include <QDesktopServices>
#include <QVBoxLayout>
#include <QWebFrame>
#include <QKeyEvent>
#include <QStackedWidget>
#include <QTimer>
#include "QtWebView.h"
#include "QtChatTheme.h"
namespace Swift {
QtChatView::QtChatView(QtChatTheme* theme, QWidget* parent) : QWidget(parent) {
theme_ = theme;
QVBoxLayout* mainLayout = new QVBoxLayout(this);
mainLayout->setSpacing(0);
mainLayout->setContentsMargins(0,0,0,0);
webView_ = new QtWebView(this);
connect(webView_, SIGNAL(linkClicked(const QUrl&)), SLOT(handleLinkClicked(const QUrl&)));
connect(webView_, SIGNAL(loadFinished(bool)), SLOT(handleViewLoadFinished(bool)));
connect(webView_, SIGNAL(gotFocus()), SIGNAL(gotFocus()));
connect(webView_, SIGNAL(clearRequested()), SLOT(resetView()));
#ifdef Q_WS_X11
/* To give a border on Linux, where it looks bad without */
QStackedWidget* stack = new QStackedWidget(this);
stack->addWidget(webView_);
stack->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken);
stack->setLineWidth(2);
mainLayout->addWidget(stack);
#else
mainLayout->addWidget(webView_);
#endif
webPage_ = new QWebPage(this);
webPage_->setLinkDelegationPolicy(QWebPage::DelegateAllLinks);
webView_->setPage(webPage_);
connect(webPage_, SIGNAL(selectionChanged()), SLOT(copySelectionToClipboard()));
viewReady_ = false;
resetView();
}
void QtChatView::handleKeyPressEvent(QKeyEvent* event) {
webView_->keyPressEvent(event);
}
void QtChatView::addMessage(boost::shared_ptr<ChatSnippet> snippet) {
if (viewReady_) {
addToDOM(snippet);
} else {
queuedSnippets_.append(snippet);
}
}
QWebElement QtChatView::snippetToDOM(boost::shared_ptr<ChatSnippet> snippet) {
QWebElement newElement = newInsertPoint_.clone();
newElement.setInnerXml(snippet->getContent()); /* FIXME: Outer, surely? */
Q_ASSERT(!newElement.isNull());
return newElement;
}
void QtChatView::addToDOM(boost::shared_ptr<ChatSnippet> snippet) {
bool bottom = isScrolledToBottom();
QWebElement newElement = snippetToDOM(snippet);
QWebElement continuationElement = lastElement_.findFirst("#insert");
if (snippet->getAppendToPrevious()) {
Q_ASSERT(!continuationElement.isNull());
continuationElement.replace(newElement);
} else {
continuationElement.removeFromDocument();
newInsertPoint_.prependOutside(newElement);
}
lastElement_ = newElement;
if (bottom) {
/* Warning: I'm not confident about this, although it does work.*/
QTimer::singleShot(0, this, SLOT(scrollToBottom()));
}
}
void QtChatView::replaceLastMessage(const QString& newMessage) {
assert(viewReady_);
/* FIXME: must be queued? */
bool bottom = isScrolledToBottom();
assert(!lastElement_.isNull());
QWebElement replace = lastElement_.findFirst("span.swift_message");
assert(!replace.isNull());
QString old = lastElement_.toOuterXml();
replace.setInnerXml(ChatSnippet::escape(newMessage));
if (bottom) {
QTimer::singleShot(0, this, SLOT(scrollToBottom()));
}
}
void QtChatView::replaceLastMessage(const QString& newMessage, const QString& note) {
replaceLastMessage(newMessage);
QWebElement replace = lastElement_.findFirst("span.swift_time");
assert(!replace.isNull());
replace.setInnerXml(ChatSnippet::escape(note));
}
void QtChatView::copySelectionToClipboard() {
if (!webPage_->selectedText().isEmpty()) {
webPage_->triggerAction(QWebPage::Copy);
}
}
void QtChatView::setAckXML(const QString& id, const QString& xml) {
QWebElement message = document_.findFirst("#" + id);
/* Deliberately not asserting here, so that when we start expiring old messages it won't hit us */
if (message.isNull()) return;
QWebElement ackElement = message.findFirst("span.swift_ack");
assert(!ackElement.isNull());
ackElement.setInnerXml(xml);
}
bool QtChatView::isScrolledToBottom() const {
return webPage_->mainFrame()->scrollBarValue(Qt::Vertical) == webPage_->mainFrame()->scrollBarMaximum(Qt::Vertical);
}
void QtChatView::scrollToBottom() {
webPage_->mainFrame()->setScrollBarValue(Qt::Vertical, webPage_->mainFrame()->scrollBarMaximum(Qt::Vertical));
}
void QtChatView::handleLinkClicked(const QUrl& url) {
QDesktopServices::openUrl(url);
}
void QtChatView::addQueuedSnippets() {
for (int i = 0; i < queuedSnippets_.count(); i++) {
addToDOM(queuedSnippets_[i]);
}
queuedSnippets_.clear();
}
void QtChatView::handleViewLoadFinished(bool ok) {
Q_ASSERT(ok);
viewReady_ = true;
addQueuedSnippets();
}
void QtChatView::resetView() {
QString pageHTML = theme_->getTemplate();
pageHTML.replace("==bodyBackground==", "background-color:#e3e3e3");
pageHTML.replace(pageHTML.indexOf("%@"), 2, theme_->getBase());
if (pageHTML.count("%@") > 3) {
pageHTML.replace(pageHTML.indexOf("%@"), 2, theme_->getMainCSS());
}
pageHTML.replace(pageHTML.indexOf("%@"), 2, "Variants/Blue on Green.css");
pageHTML.replace(pageHTML.indexOf("%@"), 2, ""/*headerSnippet.getContent()*/);
pageHTML.replace(pageHTML.indexOf("%@"), 2, ""/*footerSnippet.getContent()*/);
webPage_->mainFrame()->setHtml(pageHTML);
document_ = webPage_->mainFrame()->documentElement();
QWebElement chatElement = document_.findFirst("#Chat");
newInsertPoint_ = chatElement.clone();
newInsertPoint_.setOuterXml("<div id='swift_insert'/>");
chatElement.appendInside(newInsertPoint_);
Q_ASSERT(!newInsertPoint_.isNull());
}
}
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Swift