From 5a8f74ce99e184bf78b81b69cd3e35c6f269ac89 Mon Sep 17 00:00:00 2001
From: hunbernd <hunbernd@outlook.com>
Date: Mon, 7 Dec 2015 02:28:27 +0100
Subject: [PATCH] Spoiler feature Select text to hide, then right click -->
 Spoiler

---
 .../src/gui/common/MimeTextEdit.cpp           |  7 ++++
 retroshare-gui/src/gui/common/MimeTextEdit.h  |  2 +
 retroshare-gui/src/util/HandleRichText.cpp    | 40 +++++++++++++++++++
 retroshare-gui/src/util/HandleRichText.h      |  2 +
 4 files changed, 51 insertions(+)

diff --git a/retroshare-gui/src/gui/common/MimeTextEdit.cpp b/retroshare-gui/src/gui/common/MimeTextEdit.cpp
index 9513703d6..78e19cbe1 100644
--- a/retroshare-gui/src/gui/common/MimeTextEdit.cpp
+++ b/retroshare-gui/src/gui/common/MimeTextEdit.cpp
@@ -231,6 +231,8 @@ void MimeTextEdit::contextMenuEvent(QContextMenuEvent *e)
 
 	/* Add actions for pasting links */
 	contextMenu->addAction( tr("Paste as plain text"), this, SLOT(pastePlainText()));
+	QAction *spoilerAction =  contextMenu->addAction(tr("Spoiler"), this, SLOT(spoiler()));
+	spoilerAction->setToolTip(tr("Select text to hide, then push this button"));
 	contextMenu->addSeparator();
 	QAction *pasteLinkAction = contextMenu->addAction(QIcon(":/images/pasterslink.png"), tr("Paste RetroShare Link"), this, SLOT(pasteLink()));
 	contextMenu->addAction(QIcon(":/images/pasterslink.png"), tr("Paste my certificate link"), this, SLOT(pasteOwnCertificateLink()));
@@ -268,3 +270,8 @@ void MimeTextEdit::pastePlainText()
 {
 	insertPlainText(QApplication::clipboard()->text());
 }
+
+void MimeTextEdit::spoiler()
+{
+	RsHtml::insertSpoilerText(this->textCursor());
+}
diff --git a/retroshare-gui/src/gui/common/MimeTextEdit.h b/retroshare-gui/src/gui/common/MimeTextEdit.h
index d28bb2c6e..f327e4a6f 100644
--- a/retroshare-gui/src/gui/common/MimeTextEdit.h
+++ b/retroshare-gui/src/gui/common/MimeTextEdit.h
@@ -59,6 +59,8 @@ private slots:
 	void pasteLink();
 	void pasteOwnCertificateLink();
 	void pastePlainText();
+	void spoiler();
+
 private:
 	QString textUnderCursor() const;
 
diff --git a/retroshare-gui/src/util/HandleRichText.cpp b/retroshare-gui/src/util/HandleRichText.cpp
index d88cc366c..bd4faba94 100644
--- a/retroshare-gui/src/util/HandleRichText.cpp
+++ b/retroshare-gui/src/util/HandleRichText.cpp
@@ -26,6 +26,7 @@
 #include <QMessageBox>
 #include <QTextDocumentFragment>
 #include <qmath.h>
+#include <QUrl>
 
 #include "HandleRichText.h"
 #include "gui/RetroShareLink.h"
@@ -643,6 +644,28 @@ static void optimizeHtml(QDomDocument& doc
 				continue;
 			}
 
+			//hidden text in a
+			if (element.tagName().toLower() == "a") {
+				if(element.hasAttribute("href")){
+					QString href = element.attribute("href", "");
+					if(href.startsWith("hidden:")){
+						//this text should be hidden and appear in title
+						//we need this trick, because QTextEdit doesn't export the title attribute
+						QString title = href.remove(0, QString("hidden:").length());
+						QString text = element.text();
+						element.setTagName("span");
+						element.removeAttribute("href");
+						QDomNodeList c = element.childNodes();
+						for(int i = 0; i < c.count(); i++){
+							element.removeChild(c.at(i));
+						};
+						element.setAttribute(QString("title"), title);
+						QDomText textnode = doc.createTextNode(text);
+						element.appendChild(textnode);
+					}
+				}
+			}
+
 			// iterate children
 			optimizeHtml(doc, element, stylesList, knownStyle);
 
@@ -1004,3 +1027,20 @@ QString RsHtml::makeQuotedText(RSTextBrowser *browser)
 	text = sl.join("\n>");
 	return QString(">") + text;
 }
+
+void RsHtml::insertSpoilerText(QTextCursor cursor)
+{
+	QString hiddentext = cursor.selection().toPlainText();
+	if(hiddentext.isEmpty()) return;
+	QString publictext = "*SPOILER*";
+
+	QString encoded = hiddentext;
+	encoded = encoded.replace(QChar('\"'), QString("&quot;"));
+	encoded = encoded.replace(QChar('\''), QString("&apos;"));
+	encoded = encoded.replace(QChar('<'), QString("&lt;"));
+	encoded = encoded.replace(QChar('>'), QString("&gt;"));
+	encoded = encoded.replace(QChar('&'), QString("&amp;"));
+
+	QString html = QString("<a href=\"hidden:%1\" title=\"%1\">%2</a>").arg(encoded, publictext);
+	cursor.insertHtml(html);
+}
diff --git a/retroshare-gui/src/util/HandleRichText.h b/retroshare-gui/src/util/HandleRichText.h
index 4cea4a8d5..e832ee02a 100644
--- a/retroshare-gui/src/util/HandleRichText.h
+++ b/retroshare-gui/src/util/HandleRichText.h
@@ -53,6 +53,7 @@ class QDomDocument;
 class QDomElement;
 class EmbedInHtml;
 class RetroShareLink;
+class QTextCursor;
 
 class RsHtml
 {
@@ -75,6 +76,7 @@ public:
 	static QString plainText(const std::string &text);
 
 	static QString makeQuotedText(RSTextBrowser* browser);
+	static void insertSpoilerText(QTextCursor cursor);
 
 protected:
 	void embedHtml(QTextDocument *textDocument, QDomDocument &doc, QDomElement &currentElement, EmbedInHtml& embedInfos, ulong flag);