linux-kernel - [PATCH] kconfig: qconf: make debug links work again

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Date:   Sun, 28 Jun 2020 14:21:25 +0200
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     Linux Media Mailing List <linux-media@...r.kernel.org>
Cc:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        Maxim Levitsky <mlevitsk@...hat.com>
Subject: [PATCH] kconfig: qconf: make debug links work again

The Qt5 conversion broke support for debug info links.

Restore the behaviour added by changeset
ab45d190fd4a ("kconfig: create links in info window").

Reported-by: Maxim Levitsky <mlevitsk@...hat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
 scripts/kconfig/qconf.cc | 35 ++++++++++++++++++++++++++++++++++-
 scripts/kconfig/qconf.h  |  1 +
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 631e19659504..03cadf27a376 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -1012,7 +1012,7 @@ ConfigInfoView::ConfigInfoView(QWidget* parent, const char *name)
 	: Parent(parent), sym(0), _menu(0)
 {
 	setObjectName(name);
-
+	setOpenLinks(false);
 
 	if (!objectName().isEmpty()) {
 		configSettings->beginGroup(objectName());
@@ -1224,6 +1224,36 @@ void ConfigInfoView::expr_print_help(void *data, struct symbol *sym, const char
 		*text += str2;
 }
 
+void ConfigInfoView::clicked(const QUrl &url)
+{
+	QByteArray str = url.toEncoded();
+	const std::size_t count = str.size();
+	char *hex = new char[count];
+	unsigned long p;
+
+	if (count < 1)
+		return;
+
+	memcpy(hex, str.constData(), count);
+	p = (int)strtol(hex + 1, NULL, 16);
+
+	if (!p)
+		return;
+
+	if (hex[0] == 's') {
+		struct symbol *s = (struct symbol *)p;
+
+		sym = s;
+		symbolInfo();
+	} else {
+		struct menu *m = (struct menu *)p;
+
+		_menu = m;
+		menuInfo();
+	}
+	emit showDebugChanged(true);
+}
+
 QMenu* ConfigInfoView::createStandardContextMenu(const QPoint & pos)
 {
 	QMenu* popup = Parent::createStandardContextMenu(pos);
@@ -1497,6 +1527,9 @@ ConfigMainWindow::ConfigMainWindow(void)
 	helpMenu->addAction(showIntroAction);
 	helpMenu->addAction(showAboutAction);
 
+	connect (helpText, SIGNAL (anchorClicked (const QUrl &)),
+		 helpText, SLOT (clicked (const QUrl &)) );
+
 	connect(configList, SIGNAL(menuChanged(struct menu *)),
 		helpText, SLOT(setInfo(struct menu *)));
 	connect(configList, SIGNAL(menuSelected(struct menu *)),
diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h
index d913a02967ae..a193137f2314 100644
--- a/scripts/kconfig/qconf.h
+++ b/scripts/kconfig/qconf.h
@@ -250,6 +250,7 @@ public slots:
 	void setInfo(struct menu *menu);
 	void saveSettings(void);
 	void setShowDebug(bool);
+	void clicked (const QUrl &url);
 
 signals:
 	void showDebugChanged(bool);
-- 
2.26.2