Swift
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authorCătălin Badea <catalin.badea392@gmail.com>2012-08-21 19:06:05 (GMT)
committerKevin Smith <git@kismith.co.uk>2012-08-30 20:54:18 (GMT)
commit7d0cd94de71d9e55e573e28206470439ecde3db5 (patch)
treec361caa96dac71d53a74ba76aa3dc1d349a0c59e /Swift/QtUI/QtChatView.cpp
parent6856199274e9c5e581220fccf520b8f011519d17 (diff)
downloadswift-contrib-7d0cd94de71d9e55e573e28206470439ecde3db5.zip
swift-contrib-7d0cd94de71d9e55e573e28206470439ecde3db5.tar.bz2
History dialog
Add history dialog as an experimental feature. License: This patch is BSD-licensed, see Documentation/Licenses/BSD-simplified.txt for details.
Diffstat (limited to 'Swift/QtUI/QtChatView.cpp')
-rw-r--r--Swift/QtUI/QtChatView.cpp94
1 files changed, 90 insertions, 4 deletions
diff --git a/Swift/QtUI/QtChatView.cpp b/Swift/QtUI/QtChatView.cpp
index 49e5974..eaec3b6 100644
--- a/Swift/QtUI/QtChatView.cpp
+++ b/Swift/QtUI/QtChatView.cpp
@@ -28,7 +28,7 @@
namespace Swift {
-QtChatView::QtChatView(QtChatTheme* theme, QWidget* parent) : QWidget(parent), fontSizeSteps_(0) {
+QtChatView::QtChatView(QtChatTheme* theme, QWidget* parent, bool disableAutoScroll) : QWidget(parent), fontSizeSteps_(0), disableAutoScroll_(disableAutoScroll) {
theme_ = theme;
QVBoxLayout* mainLayout = new QVBoxLayout(this);
@@ -61,6 +61,7 @@ QtChatView::QtChatView(QtChatTheme* theme, QWidget* parent) : QWidget(parent), f
//webPage_->settings()->setAttribute(QWebSettings::DeveloperExtrasEnabled, true);
webView_->setPage(webPage_);
connect(webPage_, SIGNAL(selectionChanged()), SLOT(copySelectionToClipboard()));
+ connect(webPage_, SIGNAL(scrollRequested(int, int, const QRect&)), SLOT(handleScrollRequested(int, int, const QRect&)));
viewReady_ = false;
isAtBottom_ = true;
@@ -85,7 +86,7 @@ void QtChatView::handleKeyPressEvent(QKeyEvent* event) {
webView_->keyPressEvent(event);
}
-void QtChatView::addMessage(boost::shared_ptr<ChatSnippet> snippet) {
+void QtChatView::addMessageBottom(boost::shared_ptr<ChatSnippet> snippet) {
if (viewReady_) {
addToDOM(snippet);
} else {
@@ -94,6 +95,45 @@ void QtChatView::addMessage(boost::shared_ptr<ChatSnippet> snippet) {
}
}
+void QtChatView::addMessageTop(boost::shared_ptr<ChatSnippet> snippet) {
+ // save scrollbar maximum value
+ if (!topMessageAdded_) {
+ scrollBarMaximum_ = webPage_->mainFrame()->scrollBarMaximum(Qt::Vertical);
+ }
+ topMessageAdded_ = true;
+
+ QWebElement continuationElement = firstElement_.findFirst("#insert");
+
+ bool insert = snippet->getAppendToPrevious();
+ bool fallback = continuationElement.isNull();
+
+ boost::shared_ptr<ChatSnippet> newSnippet = (insert && fallback) ? snippet->getContinuationFallbackSnippet() : snippet;
+ QWebElement newElement = snippetToDOM(newSnippet);
+
+ if (insert && !fallback) {
+ Q_ASSERT(!continuationElement.isNull());
+ continuationElement.replace(newElement);
+ } else {
+ continuationElement.removeFromDocument();
+ topInsertPoint_.prependOutside(newElement);
+ }
+
+ firstElement_ = newElement;
+
+ if (lastElement_.isNull()) {
+ lastElement_ = firstElement_;
+ }
+
+ if (fontSizeSteps_ != 0) {
+ double size = 1.0 + 0.2 * fontSizeSteps_;
+ QString sizeString(QString().setNum(size, 'g', 3) + "em");
+ const QWebElementCollection spans = firstElement_.findAll("span.swift_resizable");
+ foreach (QWebElement span, spans) {
+ span.setStyleProperty("font-size", sizeString);
+ }
+ }
+}
+
QWebElement QtChatView::snippetToDOM(boost::shared_ptr<ChatSnippet> snippet) {
QWebElement newElement = newInsertPoint_.clone();
newElement.setInnerXml(snippet->getContent());
@@ -230,7 +270,7 @@ void QtChatView::displayReceiptInfo(const QString& id, bool showIt) {
}
void QtChatView::rememberScrolledToBottom() {
- isAtBottom_ = webPage_->mainFrame()->scrollBarValue(Qt::Vertical) == webPage_->mainFrame()->scrollBarMaximum(Qt::Vertical);
+ isAtBottom_ = webPage_->mainFrame()->scrollBarValue(Qt::Vertical) >= (webPage_->mainFrame()->scrollBarMaximum(Qt::Vertical) - 1);
}
void QtChatView::scrollToBottom() {
@@ -240,7 +280,14 @@ void QtChatView::scrollToBottom() {
}
void QtChatView::handleFrameSizeChanged() {
- if (isAtBottom_) {
+ if (topMessageAdded_) {
+ // adjust new scrollbar position
+ int newMaximum = webPage_->mainFrame()->scrollBarMaximum(Qt::Vertical);
+ webPage_->mainFrame()->setScrollBarValue(Qt::Vertical, newMaximum - scrollBarMaximum_);
+ topMessageAdded_ = false;
+ }
+
+ if (isAtBottom_ && !disableAutoScroll_) {
scrollToBottom();
}
}
@@ -282,6 +329,9 @@ void QtChatView::resizeFont(int fontSizeSteps) {
void QtChatView::resetView() {
lastElement_ = QWebElement();
+ firstElement_ = lastElement_;
+ topMessageAdded_ = false;
+ scrollBarMaximum_ = 0;
QString pageHTML = theme_->getTemplate();
pageHTML.replace("==bodyBackground==", "background-color:#e3e3e3");
pageHTML.replace(pageHTML.indexOf("%@"), 2, theme_->getBase());
@@ -302,12 +352,16 @@ void QtChatView::resetView() {
syncLoop.exec();
}
document_ = webPage_->mainFrame()->documentElement();
+
+ resetTopInsertPoint();
QWebElement chatElement = document_.findFirst("#Chat");
newInsertPoint_ = chatElement.clone();
newInsertPoint_.setOuterXml("<div id='swift_insert'/>");
chatElement.appendInside(newInsertPoint_);
Q_ASSERT(!newInsertPoint_.isNull());
+ scrollToBottom();
+
connect(webPage_->mainFrame(), SIGNAL(contentsSizeChanged(const QSize&)), this, SLOT(handleFrameSizeChanged()), Qt::UniqueConnection);
}
@@ -384,4 +438,36 @@ void QtChatView::setMUCInvitationJoined(QString id) {
}
}
+void QtChatView::handleScrollRequested(int, int dy, const QRect&) {
+ rememberScrolledToBottom();
+
+ int pos = webPage_->mainFrame()->scrollBarValue(Qt::Vertical) - dy;
+ emit scrollRequested(pos);
+
+ if (pos == 0) {
+ emit scrollReachedTop();
+ }
+ else if (pos == webPage_->mainFrame()->scrollBarMaximum(Qt::Vertical)) {
+ emit scrollReachedBottom();
+ }
+}
+
+int QtChatView::getSnippetPositionByDate(const QDate& date) {
+ QWebElement message = webPage_->mainFrame()->documentElement().findFirst(".date" + date.toString(Qt::ISODate));
+
+ return message.geometry().top();
+}
+
+void QtChatView::resetTopInsertPoint() {
+ QWebElement continuationElement = firstElement_.findFirst("#insert");
+ continuationElement.removeFromDocument();
+ firstElement_ = QWebElement();
+
+ topInsertPoint_.removeFromDocument();
+ QWebElement chatElement = document_.findFirst("#Chat");
+ topInsertPoint_ = chatElement.clone();
+ topInsertPoint_.setOuterXml("<div id='swift_insert'/>");
+ chatElement.prependInside(topInsertPoint_);
+}
+
}