From 4b4035eebcc19ea7895a60968bc8925d25045165 Mon Sep 17 00:00:00 2001
From: Konstantinos Sideris <sideris.konstantin@gmail.com>
Date: Tue, 25 Apr 2017 14:37:54 +0300
Subject: Rename History to Timeline

In order to be compatible with the Matrix terminology
---
 src/ChatPage.cc            |   2 +-
 src/HistoryView.cc         | 190 ------------------------------------------
 src/HistoryViewItem.cc     | 159 -----------------------------------
 src/HistoryViewManager.cc  | 201 ---------------------------------------------
 src/TimelineItem.cc        | 159 +++++++++++++++++++++++++++++++++++
 src/TimelineView.cc        | 190 ++++++++++++++++++++++++++++++++++++++++++
 src/TimelineViewManager.cc | 201 +++++++++++++++++++++++++++++++++++++++++++++
 7 files changed, 551 insertions(+), 551 deletions(-)
 delete mode 100644 src/HistoryView.cc
 delete mode 100644 src/HistoryViewItem.cc
 delete mode 100644 src/HistoryViewManager.cc
 create mode 100644 src/TimelineItem.cc
 create mode 100644 src/TimelineView.cc
 create mode 100644 src/TimelineViewManager.cc

(limited to 'src')

diff --git a/src/ChatPage.cc b/src/ChatPage.cc
index 3bae177b..0ddf0f8b 100644
--- a/src/ChatPage.cc
+++ b/src/ChatPage.cc
@@ -39,7 +39,7 @@ ChatPage::ChatPage(QSharedPointer<MatrixClient> client, QWidget *parent)
 	top_bar_ = new TopRoomBar(this);
 	ui->topBarLayout->addWidget(top_bar_);
 
-	view_manager_ = new HistoryViewManager(client, this);
+	view_manager_ = new TimelineViewManager(client, this);
 	ui->mainContentLayout->addWidget(view_manager_);
 
 	text_input_ = new TextInputWidget(this);
diff --git a/src/HistoryView.cc b/src/HistoryView.cc
deleted file mode 100644
index 2d54caca..00000000
--- a/src/HistoryView.cc
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
- * nheko Copyright (C) 2017  Konstantinos Sideris <siderisk@auth.gr>
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include <QDebug>
-#include <QScrollBar>
-#include <QSettings>
-#include <QtWidgets/QLabel>
-#include <QtWidgets/QSpacerItem>
-
-#include "HistoryView.h"
-#include "HistoryViewItem.h"
-#include "HistoryViewManager.h"
-
-HistoryView::HistoryView(const QList<Event> &events, QWidget *parent)
-    : QWidget(parent)
-{
-	init();
-	addEvents(events);
-}
-
-HistoryView::HistoryView(QWidget *parent)
-    : QWidget(parent)
-{
-	init();
-}
-
-void HistoryView::clear()
-{
-	for (const auto msg : scroll_layout_->children())
-		msg->deleteLater();
-}
-
-void HistoryView::sliderRangeChanged(int min, int max)
-{
-	Q_UNUSED(min);
-	scroll_area_->verticalScrollBar()->setValue(max);
-}
-
-int HistoryView::addEvents(const QList<Event> &events)
-{
-	QSettings settings;
-	auto local_user = settings.value("auth/user_id").toString();
-
-	int message_count = 0;
-
-	for (const auto &event : events) {
-		if (event.type() == "m.room.message") {
-			auto msg_type = event.content().value("msgtype").toString();
-
-			if (isPendingMessage(event, local_user)) {
-				removePendingMessage(event);
-				continue;
-			}
-
-			if (msg_type == "m.text" || msg_type == "m.notice") {
-				auto with_sender = last_sender_ != event.sender();
-				auto color = HistoryViewManager::getUserColor(event.sender());
-
-				addHistoryItem(event, color, with_sender);
-				last_sender_ = event.sender();
-
-				message_count += 1;
-			}
-		}
-	}
-
-	return message_count;
-}
-
-void HistoryView::init()
-{
-	top_layout_ = new QVBoxLayout(this);
-	top_layout_->setSpacing(0);
-	top_layout_->setMargin(0);
-
-	scroll_area_ = new QScrollArea(this);
-	scroll_area_->setWidgetResizable(true);
-	scroll_area_->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-
-	scroll_widget_ = new QWidget();
-
-	scroll_layout_ = new QVBoxLayout();
-	scroll_layout_->addStretch(1);
-	scroll_layout_->setSpacing(0);
-
-	scroll_widget_->setLayout(scroll_layout_);
-
-	scroll_area_->setWidget(scroll_widget_);
-
-	top_layout_->addWidget(scroll_area_);
-
-	setLayout(top_layout_);
-
-	connect(scroll_area_->verticalScrollBar(),
-		SIGNAL(rangeChanged(int, int)),
-		this,
-		SLOT(sliderRangeChanged(int, int)));
-}
-
-void HistoryView::addHistoryItem(const Event &event, const QString &color, bool with_sender)
-{
-	HistoryViewItem *item = new HistoryViewItem(event, with_sender, color, scroll_widget_);
-	scroll_layout_->addWidget(item);
-}
-
-void HistoryView::updatePendingMessage(int txn_id, QString event_id)
-{
-	for (auto &msg : pending_msgs_) {
-		if (msg.txn_id == txn_id) {
-			msg.event_id = event_id;
-			break;
-		}
-	}
-}
-
-bool HistoryView::isPendingMessage(const Event &event, const QString &userid)
-{
-	if (event.sender() != userid || event.type() != "m.room.message")
-		return false;
-
-	auto msgtype = event.content().value("msgtype").toString();
-	auto body = event.content().value("body").toString();
-
-	// FIXME: should contain more checks later on for other types of messages.
-	if (msgtype != "m.text")
-		return false;
-
-	for (const auto &msg : pending_msgs_) {
-		if (msg.event_id == event.eventId() || msg.body == body)
-			return true;
-	}
-
-	return false;
-}
-
-void HistoryView::removePendingMessage(const Event &event)
-{
-	auto body = event.content().value("body").toString();
-
-	for (auto it = pending_msgs_.begin(); it != pending_msgs_.end(); it++) {
-		int index = std::distance(pending_msgs_.begin(), it);
-
-		if (it->event_id == event.eventId() || it->body == body) {
-			pending_msgs_.removeAt(index);
-			break;
-		}
-	}
-}
-
-void HistoryView::addUserTextMessage(const QString &body, int txn_id)
-{
-	QSettings settings;
-	auto user_id = settings.value("auth/user_id").toString();
-
-	auto with_sender = last_sender_ != user_id;
-	auto color = HistoryViewManager::getUserColor(user_id);
-
-	HistoryViewItem *view_item;
-
-	if (with_sender)
-		view_item = new HistoryViewItem(user_id, color, body, scroll_widget_);
-	else
-		view_item = new HistoryViewItem(body, scroll_widget_);
-
-	scroll_layout_->addWidget(view_item);
-
-	last_sender_ = user_id;
-
-	PendingMessage message(txn_id, body, "", view_item);
-
-	pending_msgs_.push_back(message);
-}
-
-HistoryView::~HistoryView()
-{
-}
diff --git a/src/HistoryViewItem.cc b/src/HistoryViewItem.cc
deleted file mode 100644
index cde07eb9..00000000
--- a/src/HistoryViewItem.cc
+++ /dev/null
@@ -1,159 +0,0 @@
-/*
- * nheko Copyright (C) 2017  Konstantinos Sideris <siderisk@auth.gr>
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include <QDateTime>
-#include <QDebug>
-
-#include "HistoryViewItem.h"
-
-HistoryViewItem::HistoryViewItem(const QString &userid, const QString &color, const QString &body, QWidget *parent)
-    : QWidget(parent)
-{
-	generateTimestamp(QDateTime::currentDateTime());
-	generateBody(userid, color, body);
-	setupLayout();
-}
-
-HistoryViewItem::HistoryViewItem(const QString &body, QWidget *parent)
-    : QWidget(parent)
-{
-	generateTimestamp(QDateTime::currentDateTime());
-	generateBody(body);
-	setupLayout();
-}
-
-HistoryViewItem::HistoryViewItem(const Event &event, bool with_sender, const QString &color, QWidget *parent)
-    : QWidget(parent)
-{
-	auto body = event.content().value("body").toString().trimmed().toHtmlEscaped();
-	auto timestamp = QDateTime::fromMSecsSinceEpoch(event.timestamp());
-
-	generateTimestamp(timestamp);
-
-	if (event.content().value("msgtype").toString() == "m.notice")
-		body = "<i style=\"color: #565E5E\">" + body + "</i>";
-
-	if (with_sender)
-		generateBody(event.sender(), color, body);
-	else
-		generateBody(body);
-
-	setupLayout();
-}
-
-void HistoryViewItem::generateBody(const QString &body)
-{
-	content_label_ = new QLabel(this);
-	content_label_->setWordWrap(true);
-	content_label_->setAlignment(Qt::AlignTop);
-	content_label_->setStyleSheet("margin: 0;");
-	QString content(
-		"<html>"
-		"<head/>"
-		"<body>"
-		"   <span style=\"font-size: 10pt; color: #171919;\">"
-		"   %1"
-		"   </span>"
-		"</body>"
-		"</html>");
-	content_label_->setText(content.arg(replaceEmoji(body)));
-	content_label_->setTextInteractionFlags(Qt::TextSelectableByMouse);
-}
-
-void HistoryViewItem::generateBody(const QString &userid, const QString &color, const QString &body)
-{
-	auto sender = userid.split(":")[0].split("@")[1];
-
-	content_label_ = new QLabel(this);
-	content_label_->setWordWrap(true);
-	content_label_->setAlignment(Qt::AlignTop);
-	content_label_->setStyleSheet("margin: 0;");
-	QString content(
-		"<html>"
-		"<head/>"
-		"<body>"
-		"   <span style=\"font-size: 10pt; font-weight: 600; color: %1\">"
-		"   %2"
-		"   </span>"
-		"   <span style=\"font-size: 10pt; color: #171919;\">"
-		"   %3"
-		"   </span>"
-		"</body>"
-		"</html>");
-	content_label_->setText(content.arg(color).arg(sender).arg(replaceEmoji(body)));
-	content_label_->setTextInteractionFlags(Qt::TextSelectableByMouse);
-}
-
-void HistoryViewItem::generateTimestamp(const QDateTime &time)
-{
-	auto local_time = time.toString("HH:mm");
-
-	time_label_ = new QLabel(this);
-	QString msg(
-		"<html>"
-		"<head/>"
-		"<body>"
-		"   <span style=\"font-size: 7pt; color: #5d6565;\">"
-		"   %1"
-		"   </span>"
-		"</body>"
-		"</html>");
-	time_label_->setText(msg.arg(local_time));
-	time_label_->setStyleSheet("margin-left: 7px; margin-right: 7px; margin-top: 0;");
-	time_label_->setAlignment(Qt::AlignTop);
-}
-
-void HistoryViewItem::setupLayout()
-{
-	if (time_label_ == nullptr) {
-		qWarning() << "HistoryViewItem: Time label is not initialized";
-		return;
-	}
-
-	if (content_label_ == nullptr) {
-		qWarning() << "HistoryViewItem: Content label is not initialized";
-		return;
-	}
-
-	top_layout_ = new QHBoxLayout();
-	top_layout_->setMargin(0);
-	top_layout_->addWidget(time_label_);
-	top_layout_->addWidget(content_label_, 1);
-
-	setLayout(top_layout_);
-}
-
-QString HistoryViewItem::replaceEmoji(const QString &body)
-{
-	QString fmtBody = "";
-
-	for (auto &c : body) {
-		int code = c.unicode();
-
-		// TODO: Be more precise here.
-		if (code > 9000)
-			fmtBody += "<span style=\"font-family: Emoji One; font-size: 16px\">" + QString(c) + "</span>";
-		else
-			fmtBody += c;
-	}
-
-	return fmtBody;
-}
-
-HistoryViewItem::~HistoryViewItem()
-{
-}
diff --git a/src/HistoryViewManager.cc b/src/HistoryViewManager.cc
deleted file mode 100644
index 5967ac12..00000000
--- a/src/HistoryViewManager.cc
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- * nheko Copyright (C) 2017  Konstantinos Sideris <siderisk@auth.gr>
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include <random>
-
-#include <QApplication>
-#include <QDebug>
-#include <QSettings>
-#include <QStackedWidget>
-#include <QWidget>
-
-#include "HistoryView.h"
-#include "HistoryViewManager.h"
-
-HistoryViewManager::HistoryViewManager(QSharedPointer<MatrixClient> client, QWidget *parent)
-    : QStackedWidget(parent)
-    , client_(client)
-{
-	setStyleSheet("QWidget { background: #f8fbfe; color: #e8e8e8; border: none;}");
-
-	connect(client_.data(),
-		SIGNAL(messageSent(const QString &, const QString &, int)),
-		this,
-		SLOT(messageSent(const QString &, const QString &, int)));
-}
-
-HistoryViewManager::~HistoryViewManager()
-{
-}
-
-void HistoryViewManager::messageSent(const QString &event_id, const QString &roomid, int txn_id)
-{
-	// We save the latest valid transaction ID for later use.
-	QSettings settings;
-	settings.setValue("client/transaction_id", txn_id + 1);
-
-	auto view = views_[roomid];
-	view->updatePendingMessage(txn_id, event_id);
-}
-
-void HistoryViewManager::sendTextMessage(const QString &msg)
-{
-	auto room = active_room_;
-	auto view = views_[room.id()];
-
-	view->addUserTextMessage(msg, client_->transactionId());
-	client_->sendTextMessage(room.id(), msg);
-}
-
-void HistoryViewManager::clearAll()
-{
-	NICK_COLORS.clear();
-
-	for (const auto &view : views_) {
-		view->clear();
-		removeWidget(view);
-		view->deleteLater();
-	}
-
-	views_.clear();
-}
-
-void HistoryViewManager::initialize(const Rooms &rooms)
-{
-	for (auto it = rooms.join().constBegin(); it != rooms.join().constEnd(); it++) {
-		auto roomid = it.key();
-		auto events = it.value().timeline().events();
-
-		// Create a history view with the room events.
-		HistoryView *view = new HistoryView(events);
-		views_.insert(it.key(), view);
-
-		// Add the view in the widget stack.
-		addWidget(view);
-	}
-}
-
-void HistoryViewManager::sync(const Rooms &rooms)
-{
-	for (auto it = rooms.join().constBegin(); it != rooms.join().constEnd(); it++) {
-		auto roomid = it.key();
-
-		if (!views_.contains(roomid)) {
-			qDebug() << "Ignoring event from unknown room";
-			continue;
-		}
-
-		auto view = views_.value(roomid);
-		auto events = it.value().timeline().events();
-
-		int msgs_added = view->addEvents(events);
-
-		if (msgs_added > 0) {
-			// TODO: When window gets active the current
-			// unread count (if any) should be cleared.
-			auto isAppActive = QApplication::activeWindow() != nullptr;
-
-			if (roomid != active_room_.id() || !isAppActive)
-				emit unreadMessages(roomid, msgs_added);
-		}
-	}
-}
-
-void HistoryViewManager::setHistoryView(const RoomInfo &info)
-{
-	if (!views_.contains(info.id())) {
-		qDebug() << "Room List id is not present in view manager";
-		qDebug() << info.name();
-		return;
-	}
-
-	active_room_ = info;
-	auto widget = views_.value(info.id());
-
-	setCurrentWidget(widget);
-}
-
-QMap<QString, QString> HistoryViewManager::NICK_COLORS;
-
-QString HistoryViewManager::chooseRandomColor()
-{
-	std::random_device random_device;
-	std::mt19937 engine{random_device()};
-	std::uniform_real_distribution<float> dist(0, 1);
-
-	float hue = dist(engine);
-	float saturation = 0.9;
-	float value = 0.7;
-
-	int hue_i = hue * 6;
-
-	float f = hue * 6 - hue_i;
-
-	float p = value * (1 - saturation);
-	float q = value * (1 - f * saturation);
-	float t = value * (1 - (1 - f) * saturation);
-
-	float r = 0;
-	float g = 0;
-	float b = 0;
-
-	if (hue_i == 0) {
-		r = value;
-		g = t;
-		b = p;
-	} else if (hue_i == 1) {
-		r = q;
-		g = value;
-		b = p;
-	} else if (hue_i == 2) {
-		r = p;
-		g = value;
-		b = t;
-	} else if (hue_i == 3) {
-		r = p;
-		g = q;
-		b = value;
-	} else if (hue_i == 4) {
-		r = t;
-		g = p;
-		b = value;
-	} else if (hue_i == 5) {
-		r = value;
-		g = p;
-		b = q;
-	}
-
-	int ri = r * 256;
-	int gi = g * 256;
-	int bi = b * 256;
-
-	QColor color(ri, gi, bi);
-
-	return color.name();
-}
-
-QString HistoryViewManager::getUserColor(const QString &userid)
-{
-	auto color = NICK_COLORS.value(userid);
-
-	if (color.isEmpty()) {
-		color = chooseRandomColor();
-		NICK_COLORS.insert(userid, color);
-	}
-
-	return color;
-}
diff --git a/src/TimelineItem.cc b/src/TimelineItem.cc
new file mode 100644
index 00000000..607522a3
--- /dev/null
+++ b/src/TimelineItem.cc
@@ -0,0 +1,159 @@
+/*
+ * nheko Copyright (C) 2017  Konstantinos Sideris <siderisk@auth.gr>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <QDateTime>
+#include <QDebug>
+
+#include "TimelineItem.h"
+
+TimelineItem::TimelineItem(const QString &userid, const QString &color, const QString &body, QWidget *parent)
+    : QWidget(parent)
+{
+	generateTimestamp(QDateTime::currentDateTime());
+	generateBody(userid, color, body);
+	setupLayout();
+}
+
+TimelineItem::TimelineItem(const QString &body, QWidget *parent)
+    : QWidget(parent)
+{
+	generateTimestamp(QDateTime::currentDateTime());
+	generateBody(body);
+	setupLayout();
+}
+
+TimelineItem::TimelineItem(const Event &event, bool with_sender, const QString &color, QWidget *parent)
+    : QWidget(parent)
+{
+	auto body = event.content().value("body").toString().trimmed().toHtmlEscaped();
+	auto timestamp = QDateTime::fromMSecsSinceEpoch(event.timestamp());
+
+	generateTimestamp(timestamp);
+
+	if (event.content().value("msgtype").toString() == "m.notice")
+		body = "<i style=\"color: #565E5E\">" + body + "</i>";
+
+	if (with_sender)
+		generateBody(event.sender(), color, body);
+	else
+		generateBody(body);
+
+	setupLayout();
+}
+
+void TimelineItem::generateBody(const QString &body)
+{
+	content_label_ = new QLabel(this);
+	content_label_->setWordWrap(true);
+	content_label_->setAlignment(Qt::AlignTop);
+	content_label_->setStyleSheet("margin: 0;");
+	QString content(
+		"<html>"
+		"<head/>"
+		"<body>"
+		"   <span style=\"font-size: 10pt; color: #171919;\">"
+		"   %1"
+		"   </span>"
+		"</body>"
+		"</html>");
+	content_label_->setText(content.arg(replaceEmoji(body)));
+	content_label_->setTextInteractionFlags(Qt::TextSelectableByMouse);
+}
+
+void TimelineItem::generateBody(const QString &userid, const QString &color, const QString &body)
+{
+	auto sender = userid.split(":")[0].split("@")[1];
+
+	content_label_ = new QLabel(this);
+	content_label_->setWordWrap(true);
+	content_label_->setAlignment(Qt::AlignTop);
+	content_label_->setStyleSheet("margin: 0;");
+	QString content(
+		"<html>"
+		"<head/>"
+		"<body>"
+		"   <span style=\"font-size: 10pt; font-weight: 600; color: %1\">"
+		"   %2"
+		"   </span>"
+		"   <span style=\"font-size: 10pt; color: #171919;\">"
+		"   %3"
+		"   </span>"
+		"</body>"
+		"</html>");
+	content_label_->setText(content.arg(color).arg(sender).arg(replaceEmoji(body)));
+	content_label_->setTextInteractionFlags(Qt::TextSelectableByMouse);
+}
+
+void TimelineItem::generateTimestamp(const QDateTime &time)
+{
+	auto local_time = time.toString("HH:mm");
+
+	time_label_ = new QLabel(this);
+	QString msg(
+		"<html>"
+		"<head/>"
+		"<body>"
+		"   <span style=\"font-size: 7pt; color: #5d6565;\">"
+		"   %1"
+		"   </span>"
+		"</body>"
+		"</html>");
+	time_label_->setText(msg.arg(local_time));
+	time_label_->setStyleSheet("margin-left: 7px; margin-right: 7px; margin-top: 0;");
+	time_label_->setAlignment(Qt::AlignTop);
+}
+
+void TimelineItem::setupLayout()
+{
+	if (time_label_ == nullptr) {
+		qWarning() << "TimelineItem: Time label is not initialized";
+		return;
+	}
+
+	if (content_label_ == nullptr) {
+		qWarning() << "TimelineItem: Content label is not initialized";
+		return;
+	}
+
+	top_layout_ = new QHBoxLayout();
+	top_layout_->setMargin(0);
+	top_layout_->addWidget(time_label_);
+	top_layout_->addWidget(content_label_, 1);
+
+	setLayout(top_layout_);
+}
+
+QString TimelineItem::replaceEmoji(const QString &body)
+{
+	QString fmtBody = "";
+
+	for (auto &c : body) {
+		int code = c.unicode();
+
+		// TODO: Be more precise here.
+		if (code > 9000)
+			fmtBody += "<span style=\"font-family: Emoji One; font-size: 16px\">" + QString(c) + "</span>";
+		else
+			fmtBody += c;
+	}
+
+	return fmtBody;
+}
+
+TimelineItem::~TimelineItem()
+{
+}
diff --git a/src/TimelineView.cc b/src/TimelineView.cc
new file mode 100644
index 00000000..00a42557
--- /dev/null
+++ b/src/TimelineView.cc
@@ -0,0 +1,190 @@
+/*
+ * nheko Copyright (C) 2017  Konstantinos Sideris <siderisk@auth.gr>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <QDebug>
+#include <QScrollBar>
+#include <QSettings>
+#include <QtWidgets/QLabel>
+#include <QtWidgets/QSpacerItem>
+
+#include "TimelineItem.h"
+#include "TimelineView.h"
+#include "TimelineViewManager.h"
+
+TimelineView::TimelineView(const QList<Event> &events, QWidget *parent)
+    : QWidget(parent)
+{
+	init();
+	addEvents(events);
+}
+
+TimelineView::TimelineView(QWidget *parent)
+    : QWidget(parent)
+{
+	init();
+}
+
+void TimelineView::clear()
+{
+	for (const auto msg : scroll_layout_->children())
+		msg->deleteLater();
+}
+
+void TimelineView::sliderRangeChanged(int min, int max)
+{
+	Q_UNUSED(min);
+	scroll_area_->verticalScrollBar()->setValue(max);
+}
+
+int TimelineView::addEvents(const QList<Event> &events)
+{
+	QSettings settings;
+	auto local_user = settings.value("auth/user_id").toString();
+
+	int message_count = 0;
+
+	for (const auto &event : events) {
+		if (event.type() == "m.room.message") {
+			auto msg_type = event.content().value("msgtype").toString();
+
+			if (isPendingMessage(event, local_user)) {
+				removePendingMessage(event);
+				continue;
+			}
+
+			if (msg_type == "m.text" || msg_type == "m.notice") {
+				auto with_sender = last_sender_ != event.sender();
+				auto color = TimelineViewManager::getUserColor(event.sender());
+
+				addHistoryItem(event, color, with_sender);
+				last_sender_ = event.sender();
+
+				message_count += 1;
+			}
+		}
+	}
+
+	return message_count;
+}
+
+void TimelineView::init()
+{
+	top_layout_ = new QVBoxLayout(this);
+	top_layout_->setSpacing(0);
+	top_layout_->setMargin(0);
+
+	scroll_area_ = new QScrollArea(this);
+	scroll_area_->setWidgetResizable(true);
+	scroll_area_->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+
+	scroll_widget_ = new QWidget();
+
+	scroll_layout_ = new QVBoxLayout();
+	scroll_layout_->addStretch(1);
+	scroll_layout_->setSpacing(0);
+
+	scroll_widget_->setLayout(scroll_layout_);
+
+	scroll_area_->setWidget(scroll_widget_);
+
+	top_layout_->addWidget(scroll_area_);
+
+	setLayout(top_layout_);
+
+	connect(scroll_area_->verticalScrollBar(),
+		SIGNAL(rangeChanged(int, int)),
+		this,
+		SLOT(sliderRangeChanged(int, int)));
+}
+
+void TimelineView::addHistoryItem(const Event &event, const QString &color, bool with_sender)
+{
+	TimelineItem *item = new TimelineItem(event, with_sender, color, scroll_widget_);
+	scroll_layout_->addWidget(item);
+}
+
+void TimelineView::updatePendingMessage(int txn_id, QString event_id)
+{
+	for (auto &msg : pending_msgs_) {
+		if (msg.txn_id == txn_id) {
+			msg.event_id = event_id;
+			break;
+		}
+	}
+}
+
+bool TimelineView::isPendingMessage(const Event &event, const QString &userid)
+{
+	if (event.sender() != userid || event.type() != "m.room.message")
+		return false;
+
+	auto msgtype = event.content().value("msgtype").toString();
+	auto body = event.content().value("body").toString();
+
+	// FIXME: should contain more checks later on for other types of messages.
+	if (msgtype != "m.text")
+		return false;
+
+	for (const auto &msg : pending_msgs_) {
+		if (msg.event_id == event.eventId() || msg.body == body)
+			return true;
+	}
+
+	return false;
+}
+
+void TimelineView::removePendingMessage(const Event &event)
+{
+	auto body = event.content().value("body").toString();
+
+	for (auto it = pending_msgs_.begin(); it != pending_msgs_.end(); it++) {
+		int index = std::distance(pending_msgs_.begin(), it);
+
+		if (it->event_id == event.eventId() || it->body == body) {
+			pending_msgs_.removeAt(index);
+			break;
+		}
+	}
+}
+
+void TimelineView::addUserTextMessage(const QString &body, int txn_id)
+{
+	QSettings settings;
+	auto user_id = settings.value("auth/user_id").toString();
+
+	auto with_sender = last_sender_ != user_id;
+	auto color = TimelineViewManager::getUserColor(user_id);
+
+	TimelineItem *view_item;
+
+	if (with_sender)
+		view_item = new TimelineItem(user_id, color, body, scroll_widget_);
+	else
+		view_item = new TimelineItem(body, scroll_widget_);
+
+	scroll_layout_->addWidget(view_item);
+
+	last_sender_ = user_id;
+
+	PendingMessage message(txn_id, body, "", view_item);
+
+	pending_msgs_.push_back(message);
+}
+
+TimelineView::~TimelineView()
+{
+}
diff --git a/src/TimelineViewManager.cc b/src/TimelineViewManager.cc
new file mode 100644
index 00000000..3783b250
--- /dev/null
+++ b/src/TimelineViewManager.cc
@@ -0,0 +1,201 @@
+/*
+ * nheko Copyright (C) 2017  Konstantinos Sideris <siderisk@auth.gr>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <random>
+
+#include <QApplication>
+#include <QDebug>
+#include <QSettings>
+#include <QStackedWidget>
+#include <QWidget>
+
+#include "TimelineView.h"
+#include "TimelineViewManager.h"
+
+TimelineViewManager::TimelineViewManager(QSharedPointer<MatrixClient> client, QWidget *parent)
+    : QStackedWidget(parent)
+    , client_(client)
+{
+	setStyleSheet("QWidget { background: #f8fbfe; color: #e8e8e8; border: none;}");
+
+	connect(client_.data(),
+		SIGNAL(messageSent(const QString &, const QString &, int)),
+		this,
+		SLOT(messageSent(const QString &, const QString &, int)));
+}
+
+TimelineViewManager::~TimelineViewManager()
+{
+}
+
+void TimelineViewManager::messageSent(const QString &event_id, const QString &roomid, int txn_id)
+{
+	// We save the latest valid transaction ID for later use.
+	QSettings settings;
+	settings.setValue("client/transaction_id", txn_id + 1);
+
+	auto view = views_[roomid];
+	view->updatePendingMessage(txn_id, event_id);
+}
+
+void TimelineViewManager::sendTextMessage(const QString &msg)
+{
+	auto room = active_room_;
+	auto view = views_[room.id()];
+
+	view->addUserTextMessage(msg, client_->transactionId());
+	client_->sendTextMessage(room.id(), msg);
+}
+
+void TimelineViewManager::clearAll()
+{
+	NICK_COLORS.clear();
+
+	for (const auto &view : views_) {
+		view->clear();
+		removeWidget(view);
+		view->deleteLater();
+	}
+
+	views_.clear();
+}
+
+void TimelineViewManager::initialize(const Rooms &rooms)
+{
+	for (auto it = rooms.join().constBegin(); it != rooms.join().constEnd(); it++) {
+		auto roomid = it.key();
+		auto events = it.value().timeline().events();
+
+		// Create a history view with the room events.
+		TimelineView *view = new TimelineView(events);
+		views_.insert(it.key(), view);
+
+		// Add the view in the widget stack.
+		addWidget(view);
+	}
+}
+
+void TimelineViewManager::sync(const Rooms &rooms)
+{
+	for (auto it = rooms.join().constBegin(); it != rooms.join().constEnd(); it++) {
+		auto roomid = it.key();
+
+		if (!views_.contains(roomid)) {
+			qDebug() << "Ignoring event from unknown room";
+			continue;
+		}
+
+		auto view = views_.value(roomid);
+		auto events = it.value().timeline().events();
+
+		int msgs_added = view->addEvents(events);
+
+		if (msgs_added > 0) {
+			// TODO: When window gets active the current
+			// unread count (if any) should be cleared.
+			auto isAppActive = QApplication::activeWindow() != nullptr;
+
+			if (roomid != active_room_.id() || !isAppActive)
+				emit unreadMessages(roomid, msgs_added);
+		}
+	}
+}
+
+void TimelineViewManager::setHistoryView(const RoomInfo &info)
+{
+	if (!views_.contains(info.id())) {
+		qDebug() << "Room List id is not present in view manager";
+		qDebug() << info.name();
+		return;
+	}
+
+	active_room_ = info;
+	auto widget = views_.value(info.id());
+
+	setCurrentWidget(widget);
+}
+
+QMap<QString, QString> TimelineViewManager::NICK_COLORS;
+
+QString TimelineViewManager::chooseRandomColor()
+{
+	std::random_device random_device;
+	std::mt19937 engine{random_device()};
+	std::uniform_real_distribution<float> dist(0, 1);
+
+	float hue = dist(engine);
+	float saturation = 0.9;
+	float value = 0.7;
+
+	int hue_i = hue * 6;
+
+	float f = hue * 6 - hue_i;
+
+	float p = value * (1 - saturation);
+	float q = value * (1 - f * saturation);
+	float t = value * (1 - (1 - f) * saturation);
+
+	float r = 0;
+	float g = 0;
+	float b = 0;
+
+	if (hue_i == 0) {
+		r = value;
+		g = t;
+		b = p;
+	} else if (hue_i == 1) {
+		r = q;
+		g = value;
+		b = p;
+	} else if (hue_i == 2) {
+		r = p;
+		g = value;
+		b = t;
+	} else if (hue_i == 3) {
+		r = p;
+		g = q;
+		b = value;
+	} else if (hue_i == 4) {
+		r = t;
+		g = p;
+		b = value;
+	} else if (hue_i == 5) {
+		r = value;
+		g = p;
+		b = q;
+	}
+
+	int ri = r * 256;
+	int gi = g * 256;
+	int bi = b * 256;
+
+	QColor color(ri, gi, bi);
+
+	return color.name();
+}
+
+QString TimelineViewManager::getUserColor(const QString &userid)
+{
+	auto color = NICK_COLORS.value(userid);
+
+	if (color.isEmpty()) {
+		color = chooseRandomColor();
+		NICK_COLORS.insert(userid, color);
+	}
+
+	return color;
+}
-- 
cgit 1.5.1