From 992802bb5a3f00c563aa02244143d63a33ee1540 Mon Sep 17 00:00:00 2001
From: Aqua-sama <aqua@iserlohn-fortress.net>
Date: Sat, 19 Aug 2017 10:48:35 +0200
Subject: Added URL bar completer

---
 src/widgets/urllineedit.cpp | 41 +++++++++++++++++++++++++++++++++++++++++
 src/widgets/urllineedit.h   |  7 +++++++
 2 files changed, 48 insertions(+)

diff --git a/src/widgets/urllineedit.cpp b/src/widgets/urllineedit.cpp
index b038da9..871cd53 100644
--- a/src/widgets/urllineedit.cpp
+++ b/src/widgets/urllineedit.cpp
@@ -26,6 +26,8 @@
 #include <QStyle>
 #include "browser.h"
 
+#include <QWidgetAction>
+
 UrlLineEdit::UrlLineEdit(QWidget *parent) :
     QLineEdit(parent)
 {
@@ -47,6 +49,27 @@ UrlLineEdit::UrlLineEdit(QWidget *parent) :
     QAction *contextAction = addAction(style()->standardIcon(QStyle::SP_TitleBarMinButton), ActionPosition::TrailingPosition);
     contextAction->setShortcut(QKeySequence::fromString("F3"));
     connect(contextAction, SIGNAL(triggered()), this, SLOT(showMenu()));
+
+    m_menu = new QMenu(this);
+    m_menu->setWindowFlags(Qt::FramelessWindowHint | Qt::Tool);
+
+    QListWidget *listWidget = new QListWidget();
+    listWidget->addItem("start.duckduckgo.com");
+    listWidget->addItem("neueland.iserlohn-fortress.net");
+
+    connect(listWidget, &QListWidget::itemActivated, [this](QListWidgetItem *item){
+        setUrl(urlFromUserInput(item->text()));
+        this->m_menu->hide();
+    });
+
+    QWidgetAction *listAction = new QWidgetAction(m_menu);
+    listAction->setDefaultWidget(listWidget);
+    m_menu->addAction(listAction);
+    QAction *closeAction = m_menu->addAction("Close");
+    connect(closeAction, SIGNAL(triggered()), m_menu, SLOT(hide()));
+
+    connect(this, SIGNAL(textEdited(QString)), this, SLOT(showCompleter(QString)));
+
 }
 
 void UrlLineEdit::setUrl(const QUrl &url)
@@ -71,20 +94,30 @@ QUrl UrlLineEdit::url()
 void UrlLineEdit::focusInEvent(QFocusEvent *event)
 {
     clearTextFormat();
+
     QLineEdit::focusInEvent(event);
 
     // select the contents when receiving focus
     // http://stackoverflow.com/a/35725950/1054406
     // mousePressEvent triggers right after focusInEvent so text selected in focusInEvent unselects by mousePressEvent
     QTimer::singleShot(0, this, SLOT(selectAll()));
+
+    //QTimer::singleShot(0, this, SLOT(showCompleter()));
 }
 
 void UrlLineEdit::focusOutEvent(QFocusEvent *event)
 {
+    wasFocused = false;
     setUrl(urlFromUserInput(text()));
     QLineEdit::focusOutEvent(event);
 }
 
+void UrlLineEdit::resizeEvent(QResizeEvent *event)
+{
+    QLineEdit::resizeEvent(event);
+    m_menu->setFixedWidth(width());
+}
+
 // formatting taken from: https://forum.qt.io/topic/60962/setting-qlineedit-text-bold
 void UrlLineEdit::setTextFormat(const QTextLayout::FormatRange &format)
 {
@@ -108,6 +141,14 @@ QUrl UrlLineEdit::urlFromUserInput(const QString &input)
     return QUrl::fromUserInput(input);
 }
 
+// Completer
+
+void UrlLineEdit::showCompleter(const QString &text)
+{
+    m_menu->move(mapToGlobal(QPoint(0, height())));
+    m_menu->exec();
+}
+
 // Menu
 
 void UrlLineEdit::showMenu()
diff --git a/src/widgets/urllineedit.h b/src/widgets/urllineedit.h
index 959461c..548000a 100644
--- a/src/widgets/urllineedit.h
+++ b/src/widgets/urllineedit.h
@@ -25,6 +25,8 @@
 #include <QTextLayout>
 #include <QMenu>
 
+#include <QListWidget>
+
 class UrlLineEdit : public QLineEdit
 {
     Q_OBJECT
@@ -40,8 +42,10 @@ public slots:
 protected:
     void focusInEvent(QFocusEvent *event);
     void focusOutEvent(QFocusEvent *event);
+    void resizeEvent(QResizeEvent *event);
 
 private slots:
+    void showCompleter(const QString &text);
     void showMenu();
     void copyUrl();
     void pasteUrl();
@@ -56,6 +60,9 @@ private:
 
     QTextLayout::FormatRange m_hostFormat;
     QMenu *m_contextMenu;
+
+    bool wasFocused = false;
+    QMenu *m_menu;
 };
 
 #endif // URLLINEEDIT_H
-- 
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