[PATCH v3 0/7] Fix split view search and debug info navigation

[PATCH v3 0/7] Fix split view search and debug info navigation

[Mauro Carvalho Chehab]

This series fixes some issues with search while on split view and fix the
broken hyperlink navigation.

The first patches restore the pre-Qt5 conversion behavior. The last
one implements navigation on a different way. I opted to keep this one
in separate, as this one is a new feature.

-

v3:

- dropped a patch that it is not needed anymore;
- hyperlinks should now work for non-visible items;
- fixed a description at patch 3.

Mauro Carvalho Chehab (7):
  kconfig: qconf: cleanup includes
  kconfig: qconf: make search fully work again on split mode
  kconfig: qconf: make debug links work again
  kconfig: qconf: re-implement setSelected()
  kconfig: qconf: simplify the goBack() logic
  kconfig: qconf: don't show goback button on splitMode
  kconfig: qconf: navigate menus on hyperlinks

 scripts/kconfig/qconf.cc | 169 +++++++++++++++++++++++----------------
 scripts/kconfig/qconf.h  |  29 ++++---
 2 files changed, 119 insertions(+), 79 deletions(-)

-- 
2.26.2

[PATCH v3 0/7] Fix split view search and debug info navigation

[Mauro Carvalho Chehab]

This series fixes some issues with search while on split view and fix the
broken hyperlink navigation.

The first patches restore the pre-Qt5 conversion behavior. The last
one implements navigation on a different way. I opted to keep this one
in separate, as this one is a new feature.

-

v3:

- dropped a patch that it is not needed anymore;
- hyperlinks should now work for non-visible items;
- fixed a description at patch 3.

Mauro Carvalho Chehab (7):
  kconfig: qconf: cleanup includes
  kconfig: qconf: make search fully work again on split mode
  kconfig: qconf: make debug links work again
  kconfig: qconf: re-implement setSelected()
  kconfig: qconf: simplify the goBack() logic
  kconfig: qconf: don't show goback button on splitMode
  kconfig: qconf: navigate menus on hyperlinks

 scripts/kconfig/qconf.cc | 169 +++++++++++++++++++++++----------------
 scripts/kconfig/qconf.h  |  29 ++++---
 2 files changed, 119 insertions(+), 79 deletions(-)

-- 
2.26.2

[PATCH v3 1/7] kconfig: qconf: cleanup includes

[Mauro Carvalho Chehab]

The usage of c-like include is deprecated on modern Qt
versions. Use the c++ style includes.

While here, remove uneeded and redundant ones, sorting
them on alphabetic order.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 27 +++++++++------------------
 scripts/kconfig/qconf.h  | 14 +++++++-------
 2 files changed, 16 insertions(+), 25 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index c0ac8f7b5f1a..0e06afa08908 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -4,27 +4,18 @@
  * Copyright (C) 2015 Boris Barbulovski <bbarbulovski@gmail.com>
  */
 
-#include <qglobal.h>
-
-#include <QMainWindow>
-#include <QList>
-#include <qtextbrowser.h>
 #include <QAction>
+#include <QApplication>
+#include <QCloseEvent>
+#include <QDesktopWidget>
 #include <QFileDialog>
+#include <QLabel>
+#include <QLayout>
+#include <QList>
 #include <QMenu>
-
-#include <qapplication.h>
-#include <qdesktopwidget.h>
-#include <qtoolbar.h>
-#include <qlayout.h>
-#include <qsplitter.h>
-#include <qlineedit.h>
-#include <qlabel.h>
-#include <qpushbutton.h>
-#include <qmenubar.h>
-#include <qmessagebox.h>
-#include <qregexp.h>
-#include <qevent.h>
+#include <QMenuBar>
+#include <QMessageBox>
+#include <QToolBar>
 
 #include <stdlib.h>
 
diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h
index c879d79ce817..d913a02967ae 100644
--- a/scripts/kconfig/qconf.h
+++ b/scripts/kconfig/qconf.h
@@ -3,17 +3,17 @@
  * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
  */
 
-#include <QTextBrowser>
-#include <QTreeWidget>
-#include <QMainWindow>
+#include <QCheckBox>
+#include <QDialog>
 #include <QHeaderView>
-#include <qsettings.h>
+#include <QLineEdit>
+#include <QMainWindow>
 #include <QPushButton>
 #include <QSettings>
-#include <QLineEdit>
 #include <QSplitter>
-#include <QCheckBox>
-#include <QDialog>
+#include <QTextBrowser>
+#include <QTreeWidget>
+
 #include "expr.h"
 
 class ConfigView;
-- 
2.26.2

[PATCH v3 1/7] kconfig: qconf: cleanup includes

[Mauro Carvalho Chehab]

The usage of c-like include is deprecated on modern Qt
versions. Use the c++ style includes.

While here, remove uneeded and redundant ones, sorting
them on alphabetic order.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 27 +++++++++------------------
 scripts/kconfig/qconf.h  | 14 +++++++-------
 2 files changed, 16 insertions(+), 25 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index c0ac8f7b5f1a..0e06afa08908 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -4,27 +4,18 @@
  * Copyright (C) 2015 Boris Barbulovski <bbarbulovski@gmail.com>
  */
 
-#include <qglobal.h>
-
-#include <QMainWindow>
-#include <QList>
-#include <qtextbrowser.h>
 #include <QAction>
+#include <QApplication>
+#include <QCloseEvent>
+#include <QDesktopWidget>
 #include <QFileDialog>
+#include <QLabel>
+#include <QLayout>
+#include <QList>
 #include <QMenu>
-
-#include <qapplication.h>
-#include <qdesktopwidget.h>
-#include <qtoolbar.h>
-#include <qlayout.h>
-#include <qsplitter.h>
-#include <qlineedit.h>
-#include <qlabel.h>
-#include <qpushbutton.h>
-#include <qmenubar.h>
-#include <qmessagebox.h>
-#include <qregexp.h>
-#include <qevent.h>
+#include <QMenuBar>
+#include <QMessageBox>
+#include <QToolBar>
 
 #include <stdlib.h>
 
diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h
index c879d79ce817..d913a02967ae 100644
--- a/scripts/kconfig/qconf.h
+++ b/scripts/kconfig/qconf.h
@@ -3,17 +3,17 @@
  * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
  */
 
-#include <QTextBrowser>
-#include <QTreeWidget>
-#include <QMainWindow>
+#include <QCheckBox>
+#include <QDialog>
 #include <QHeaderView>
-#include <qsettings.h>
+#include <QLineEdit>
+#include <QMainWindow>
 #include <QPushButton>
 #include <QSettings>
-#include <QLineEdit>
 #include <QSplitter>
-#include <QCheckBox>
-#include <QDialog>
+#include <QTextBrowser>
+#include <QTreeWidget>
+
 #include "expr.h"
 
 class ConfigView;
-- 
2.26.2

[PATCH v3 2/7] kconfig: qconf: make search fully work again on split mode

[Mauro Carvalho Chehab]

When the search dialog box finds symbols/menus that match
the search criteria, it presents all results at the window.

Clicking on a search result should make qconf to navigate
to the selected item. This works on singleMode and on
fullMode, but on splitMode, the navigation is broken.

This was partially caused by an incomplete Qt5 conversion
and by the followup patches that restored the original
behavior.

When qconf is on split mode, it has to update both the
config and the menu views. Right now, such logic is broken,
as it is not seeking using the right structures.

On qconf, the screen is split into 3 parts:

	+------------+-------+
	|            |       |
	|   Config   | Menu  |
	|            |       |
	+------------+-------+
	|                    |
	|     ConfigInfo     |
	|                    |
	+--------------------+

On singleMode and on fullMode, the menuView is hidden, and search
updates only the configList (which controls the ConfigView).

On SplitMode, the search logic should detect if the variable is a
leaf or not. If it is a leaf, it should be presented at the menuView,
and both configList and menuList should be updated. Otherwise, just
the configList should be updated.

Link: https://lore.kernel.org/lkml/a98b0f0ebe0c23615a76f1d23f25fd0c84835e6b.camel@redhat.com/
Reported-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 0e06afa08908..9def59423743 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -1636,22 +1636,33 @@ void ConfigMainWindow::setMenuLink(struct menu *menu)
 			return;
 		list->setRootMenu(parent);
 		break;
-	case symbolMode:
+	case menuMode:
 		if (menu->flags & MENU_ROOT) {
-			configList->setRootMenu(menu);
+			menuList->setRootMenu(menu);
 			configList->clearSelection();
-			list = menuList;
-		} else {
 			list = configList;
+		} else {
 			parent = menu_get_parent_menu(menu->parent);
 			if (!parent)
 				return;
-			item = menuList->findConfigItem(parent);
+
+			/* Clear an already-selected item */
+			if (!configList->selectedItems().isEmpty()) {
+				item = (ConfigItem*)configList->selectedItems().first();
+				if (item)
+					item->setSelected(false);
+			}
+
+			/* Select the config view */
+			item = configList->findConfigItem(parent);
 			if (item) {
 				item->setSelected(true);
-				menuList->scrollToItem(item);
+				configList->scrollToItem(item);
 			}
-			list->setRootMenu(parent);
+
+			menuList->setRootMenu(parent);
+			menuList->clearSelection();
+			list = menuList;
 		}
 		break;
 	case fullMode:
-- 
2.26.2

[PATCH v3 2/7] kconfig: qconf: make search fully work again on split mode

[Mauro Carvalho Chehab]

When the search dialog box finds symbols/menus that match
the search criteria, it presents all results at the window.

Clicking on a search result should make qconf to navigate
to the selected item. This works on singleMode and on
fullMode, but on splitMode, the navigation is broken.

This was partially caused by an incomplete Qt5 conversion
and by the followup patches that restored the original
behavior.

When qconf is on split mode, it has to update both the
config and the menu views. Right now, such logic is broken,
as it is not seeking using the right structures.

On qconf, the screen is split into 3 parts:

	+------------+-------+
	|            |       |
	|   Config   | Menu  |
	|            |       |
	+------------+-------+
	|                    |
	|     ConfigInfo     |
	|                    |
	+--------------------+

On singleMode and on fullMode, the menuView is hidden, and search
updates only the configList (which controls the ConfigView).

On SplitMode, the search logic should detect if the variable is a
leaf or not. If it is a leaf, it should be presented at the menuView,
and both configList and menuList should be updated. Otherwise, just
the configList should be updated.

Link: https://lore.kernel.org/lkml/a98b0f0ebe0c23615a76f1d23f25fd0c84835e6b.camel@redhat.com/
Reported-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 0e06afa08908..9def59423743 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -1636,22 +1636,33 @@ void ConfigMainWindow::setMenuLink(struct menu *menu)
 			return;
 		list->setRootMenu(parent);
 		break;
-	case symbolMode:
+	case menuMode:
 		if (menu->flags & MENU_ROOT) {
-			configList->setRootMenu(menu);
+			menuList->setRootMenu(menu);
 			configList->clearSelection();
-			list = menuList;
-		} else {
 			list = configList;
+		} else {
 			parent = menu_get_parent_menu(menu->parent);
 			if (!parent)
 				return;
-			item = menuList->findConfigItem(parent);
+
+			/* Clear an already-selected item */
+			if (!configList->selectedItems().isEmpty()) {
+				item = (ConfigItem*)configList->selectedItems().first();
+				if (item)
+					item->setSelected(false);
+			}
+
+			/* Select the config view */
+			item = configList->findConfigItem(parent);
 			if (item) {
 				item->setSelected(true);
-				menuList->scrollToItem(item);
+				configList->scrollToItem(item);
 			}
-			list->setRootMenu(parent);
+
+			menuList->setRootMenu(parent);
+			menuList->clearSelection();
+			list = menuList;
 		}
 		break;
 	case fullMode:
-- 
2.26.2

[PATCH v3 3/7] kconfig: qconf: make debug links work again

[Mauro Carvalho Chehab]

The Qt5 conversion broke support for debug info links.

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

The original approach was to pass a pointer for a data struct
via an <a href>. That doesn't sound a good idea, as, if something
gets wrong, the app could crash. So, instead, pass the name of
the symbol, and validate such symbol at the hyperlink handling
logic.

Link: https://lore.kernel.org/lkml/20200628125421.12458086@coco.lan/
Reported-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 75 +++++++++++++++++++++++++++++++++++++---
 scripts/kconfig/qconf.h  |  1 +
 2 files changed, 71 insertions(+), 5 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 9def59423743..1fddbdfa58b4 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -7,6 +7,7 @@
 #include <QAction>
 #include <QApplication>
 #include <QCloseEvent>
+#include <QDebug>
 #include <QDesktopWidget>
 #include <QFileDialog>
 #include <QLabel>
@@ -1012,7 +1013,7 @@ ConfigInfoView::ConfigInfoView(QWidget* parent, const char *name)
 	: Parent(parent), sym(0), _menu(0)
 {
 	setObjectName(name);
-
+	setOpenLinks(false);
 
 	if (!objectName().isEmpty()) {
 		configSettings->beginGroup(objectName());
@@ -1085,7 +1086,7 @@ void ConfigInfoView::menuInfo(void)
 			if (sym->name) {
 				head += " (";
 				if (showDebug())
-					head += QString().sprintf("<a href=\"s%p\">", sym);
+					head += QString().sprintf("<a href=\"s%s\">", sym->name);
 				head += print_filter(sym->name);
 				if (showDebug())
 					head += "</a>";
@@ -1094,7 +1095,7 @@ void ConfigInfoView::menuInfo(void)
 		} else if (sym->name) {
 			head += "<big><b>";
 			if (showDebug())
-				head += QString().sprintf("<a href=\"s%p\">", sym);
+				head += QString().sprintf("<a href=\"s%s\">", sym->name);
 			head += print_filter(sym->name);
 			if (showDebug())
 				head += "</a>";
@@ -1145,7 +1146,7 @@ QString ConfigInfoView::debug_info(struct symbol *sym)
 		switch (prop->type) {
 		case P_PROMPT:
 		case P_MENU:
-			debug += QString().sprintf("prompt: <a href=\"m%p\">", prop->menu);
+			debug += QString().sprintf("prompt: <a href=\"m%s\">", sym->name);
 			debug += print_filter(prop->text);
 			debug += "</a><br>";
 			break;
@@ -1217,13 +1218,74 @@ void ConfigInfoView::expr_print_help(void *data, struct symbol *sym, const char
 	QString str2 = print_filter(str);
 
 	if (sym && sym->name && !(sym->flags & SYMBOL_CONST)) {
-		*text += QString().sprintf("<a href=\"s%p\">", sym);
+		*text += QString().sprintf("<a href=\"s%s\">", sym->name);
 		*text += str2;
 		*text += "</a>";
 	} else
 		*text += str2;
 }
 
+void ConfigInfoView::clicked(const QUrl &url)
+{
+	QByteArray str = url.toEncoded();
+	const std::size_t count = str.size();
+	char *data = new char[count + 1];
+	struct symbol **result;
+	struct menu *m = NULL;
+	char type;
+
+	if (count < 1) {
+		qInfo() << "Clicked link is empty";
+		delete data;
+		return;
+	}
+
+	memcpy(data, str.constData(), count);
+	data[count] = '\0';
+	type = data[0];
+
+	/* Seek for exact match */
+	data[0] = '^';
+	strcat(data, "$");
+	result = sym_re_search(data);
+	if (!result) {
+		qInfo() << "Clicked symbol is invalid:" << data;
+		delete data;
+		return;
+	}
+
+	sym = *result;
+	if (type == 's') {
+		symbolInfo();
+		emit showDebugChanged(true);
+		free(result);
+		delete data;
+		return;
+	}
+
+	/* URL is a menu */
+	for (struct property *prop = sym->prop; prop; prop = prop->next) {
+		    if (prop->type != P_PROMPT && prop->type != P_MENU)
+			    continue;
+		    m = prop->menu;
+		    break;
+	}
+
+	if (!m) {
+		qInfo() << "Clicked menu is invalid:" << data;
+		free(result);
+		delete data;
+		return;
+	}
+
+	_menu = m;
+	menuInfo();
+
+	emit showDebugChanged(true);
+	free(result);
+	delete data;
+}
+
 QMenu* ConfigInfoView::createStandardContextMenu(const QPoint & pos)
 {
 	QMenu* popup = Parent::createStandardContextMenu(pos);
@@ -1497,6 +1559,9 @@ 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

[PATCH v3 3/7] kconfig: qconf: make debug links work again

[Mauro Carvalho Chehab]

The Qt5 conversion broke support for debug info links.

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

The original approach was to pass a pointer for a data struct
via an <a href>. That doesn't sound a good idea, as, if something
gets wrong, the app could crash. So, instead, pass the name of
the symbol, and validate such symbol at the hyperlink handling
logic.

Link: https://lore.kernel.org/lkml/20200628125421.12458086@coco.lan/
Reported-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 75 +++++++++++++++++++++++++++++++++++++---
 scripts/kconfig/qconf.h  |  1 +
 2 files changed, 71 insertions(+), 5 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 9def59423743..1fddbdfa58b4 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -7,6 +7,7 @@
 #include <QAction>
 #include <QApplication>
 #include <QCloseEvent>
+#include <QDebug>
 #include <QDesktopWidget>
 #include <QFileDialog>
 #include <QLabel>
@@ -1012,7 +1013,7 @@ ConfigInfoView::ConfigInfoView(QWidget* parent, const char *name)
 	: Parent(parent), sym(0), _menu(0)
 {
 	setObjectName(name);
-
+	setOpenLinks(false);
 
 	if (!objectName().isEmpty()) {
 		configSettings->beginGroup(objectName());
@@ -1085,7 +1086,7 @@ void ConfigInfoView::menuInfo(void)
 			if (sym->name) {
 				head += " (";
 				if (showDebug())
-					head += QString().sprintf("<a href=\"s%p\">", sym);
+					head += QString().sprintf("<a href=\"s%s\">", sym->name);
 				head += print_filter(sym->name);
 				if (showDebug())
 					head += "</a>";
@@ -1094,7 +1095,7 @@ void ConfigInfoView::menuInfo(void)
 		} else if (sym->name) {
 			head += "<big><b>";
 			if (showDebug())
-				head += QString().sprintf("<a href=\"s%p\">", sym);
+				head += QString().sprintf("<a href=\"s%s\">", sym->name);
 			head += print_filter(sym->name);
 			if (showDebug())
 				head += "</a>";
@@ -1145,7 +1146,7 @@ QString ConfigInfoView::debug_info(struct symbol *sym)
 		switch (prop->type) {
 		case P_PROMPT:
 		case P_MENU:
-			debug += QString().sprintf("prompt: <a href=\"m%p\">", prop->menu);
+			debug += QString().sprintf("prompt: <a href=\"m%s\">", sym->name);
 			debug += print_filter(prop->text);
 			debug += "</a><br>";
 			break;
@@ -1217,13 +1218,74 @@ void ConfigInfoView::expr_print_help(void *data, struct symbol *sym, const char
 	QString str2 = print_filter(str);
 
 	if (sym && sym->name && !(sym->flags & SYMBOL_CONST)) {
-		*text += QString().sprintf("<a href=\"s%p\">", sym);
+		*text += QString().sprintf("<a href=\"s%s\">", sym->name);
 		*text += str2;
 		*text += "</a>";
 	} else
 		*text += str2;
 }
 
+void ConfigInfoView::clicked(const QUrl &url)
+{
+	QByteArray str = url.toEncoded();
+	const std::size_t count = str.size();
+	char *data = new char[count + 1];
+	struct symbol **result;
+	struct menu *m = NULL;
+	char type;
+
+	if (count < 1) {
+		qInfo() << "Clicked link is empty";
+		delete data;
+		return;
+	}
+
+	memcpy(data, str.constData(), count);
+	data[count] = '\0';
+	type = data[0];
+
+	/* Seek for exact match */
+	data[0] = '^';
+	strcat(data, "$");
+	result = sym_re_search(data);
+	if (!result) {
+		qInfo() << "Clicked symbol is invalid:" << data;
+		delete data;
+		return;
+	}
+
+	sym = *result;
+	if (type == 's') {
+		symbolInfo();
+		emit showDebugChanged(true);
+		free(result);
+		delete data;
+		return;
+	}
+
+	/* URL is a menu */
+	for (struct property *prop = sym->prop; prop; prop = prop->next) {
+		    if (prop->type != P_PROMPT && prop->type != P_MENU)
+			    continue;
+		    m = prop->menu;
+		    break;
+	}
+
+	if (!m) {
+		qInfo() << "Clicked menu is invalid:" << data;
+		free(result);
+		delete data;
+		return;
+	}
+
+	_menu = m;
+	menuInfo();
+
+	emit showDebugChanged(true);
+	free(result);
+	delete data;
+}
+
 QMenu* ConfigInfoView::createStandardContextMenu(const QPoint & pos)
 {
 	QMenu* popup = Parent::createStandardContextMenu(pos);
@@ -1497,6 +1559,9 @@ 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

[PATCH v3 4/7] kconfig: qconf: re-implement setSelected()

[Mauro Carvalho Chehab]

The default implementation for setSelected() at QTreeWidgetItem
allows multiple items to be selected.

Well, this should never be possible for the configItem lists.

So, implement a function that will automatically clean any
previous selection. This simplifies the logic somewhat, while
making the selection logic to be applied atomically, avoiding
future issues on that.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 15 ++++-----------
 scripts/kconfig/qconf.h  | 14 ++++++++++----
 2 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 1fddbdfa58b4..29ca4823cfb9 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -537,7 +537,7 @@ void ConfigList::setRootMenu(struct menu *menu)
 	rootEntry = menu;
 	updateListAll();
 	if (currentItem()) {
-		currentItem()->setSelected(hasFocus());
+		setSelected(currentItem(), hasFocus());
 		scrollToItem(currentItem());
 	}
 }
@@ -865,7 +865,7 @@ void ConfigList::focusInEvent(QFocusEvent *e)
 
 	ConfigItem* item = (ConfigItem *)currentItem();
 	if (item) {
-		item->setSelected(true);
+		setSelected(item, true);
 		menu = item->menu;
 	}
 	emit gotFocus(menu);
@@ -1711,17 +1711,10 @@ void ConfigMainWindow::setMenuLink(struct menu *menu)
 			if (!parent)
 				return;
 
-			/* Clear an already-selected item */
-			if (!configList->selectedItems().isEmpty()) {
-				item = (ConfigItem*)configList->selectedItems().first();
-				if (item)
-					item->setSelected(false);
-			}
-
 			/* Select the config view */
 			item = configList->findConfigItem(parent);
 			if (item) {
-				item->setSelected(true);
+				configList->setSelected(item, true);
 				configList->scrollToItem(item);
 			}
 
@@ -1740,7 +1733,7 @@ void ConfigMainWindow::setMenuLink(struct menu *menu)
 	if (list) {
 		item = list->findConfigItem(menu);
 		if (item) {
-			item->setSelected(true);
+			list->setSelected(item, true);
 			list->scrollToItem(item);
 			list->setFocus();
 		}
diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h
index a193137f2314..fb9e9729266f 100644
--- a/scripts/kconfig/qconf.h
+++ b/scripts/kconfig/qconf.h
@@ -45,11 +45,17 @@ class ConfigList : public QTreeWidget {
 public:
 	ConfigList(ConfigView* p, const char *name = 0);
 	void reinit(void);
-	ConfigView* parent(void) const
-	{
-		return (ConfigView*)Parent::parent();
-	}
 	ConfigItem* findConfigItem(struct menu *);
+	ConfigView* parent(void) const
+	{
+		return (ConfigView*)Parent::parent();
+	}
+	void setSelected(QTreeWidgetItem *item, bool enable) {
+		for (int i = 0; i < selectedItems().size(); i++)
+			selectedItems().at(i)->setSelected(false);
+
+		item->setSelected(enable);
+	}
 
 protected:
 	void keyPressEvent(QKeyEvent *e);
-- 
2.26.2

[PATCH v3 4/7] kconfig: qconf: re-implement setSelected()

[Mauro Carvalho Chehab]

The default implementation for setSelected() at QTreeWidgetItem
allows multiple items to be selected.

Well, this should never be possible for the configItem lists.

So, implement a function that will automatically clean any
previous selection. This simplifies the logic somewhat, while
making the selection logic to be applied atomically, avoiding
future issues on that.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 15 ++++-----------
 scripts/kconfig/qconf.h  | 14 ++++++++++----
 2 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 1fddbdfa58b4..29ca4823cfb9 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -537,7 +537,7 @@ void ConfigList::setRootMenu(struct menu *menu)
 	rootEntry = menu;
 	updateListAll();
 	if (currentItem()) {
-		currentItem()->setSelected(hasFocus());
+		setSelected(currentItem(), hasFocus());
 		scrollToItem(currentItem());
 	}
 }
@@ -865,7 +865,7 @@ void ConfigList::focusInEvent(QFocusEvent *e)
 
 	ConfigItem* item = (ConfigItem *)currentItem();
 	if (item) {
-		item->setSelected(true);
+		setSelected(item, true);
 		menu = item->menu;
 	}
 	emit gotFocus(menu);
@@ -1711,17 +1711,10 @@ void ConfigMainWindow::setMenuLink(struct menu *menu)
 			if (!parent)
 				return;
 
-			/* Clear an already-selected item */
-			if (!configList->selectedItems().isEmpty()) {
-				item = (ConfigItem*)configList->selectedItems().first();
-				if (item)
-					item->setSelected(false);
-			}
-
 			/* Select the config view */
 			item = configList->findConfigItem(parent);
 			if (item) {
-				item->setSelected(true);
+				configList->setSelected(item, true);
 				configList->scrollToItem(item);
 			}
 
@@ -1740,7 +1733,7 @@ void ConfigMainWindow::setMenuLink(struct menu *menu)
 	if (list) {
 		item = list->findConfigItem(menu);
 		if (item) {
-			item->setSelected(true);
+			list->setSelected(item, true);
 			list->scrollToItem(item);
 			list->setFocus();
 		}
diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h
index a193137f2314..fb9e9729266f 100644
--- a/scripts/kconfig/qconf.h
+++ b/scripts/kconfig/qconf.h
@@ -45,11 +45,17 @@ class ConfigList : public QTreeWidget {
 public:
 	ConfigList(ConfigView* p, const char *name = 0);
 	void reinit(void);
-	ConfigView* parent(void) const
-	{
-		return (ConfigView*)Parent::parent();
-	}
 	ConfigItem* findConfigItem(struct menu *);
+	ConfigView* parent(void) const
+	{
+		return (ConfigView*)Parent::parent();
+	}
+	void setSelected(QTreeWidgetItem *item, bool enable) {
+		for (int i = 0; i < selectedItems().size(); i++)
+			selectedItems().at(i)->setSelected(false);
+
+		item->setSelected(enable);
+	}
 
 protected:
 	void keyPressEvent(QKeyEvent *e);
-- 
2.26.2

[PATCH v3 5/7] kconfig: qconf: simplify the goBack() logic

[Mauro Carvalho Chehab]

The goBack() logic is used only for the configList, as
it only makes sense on singleMode. So, let's simplify the
code.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 50 +++++++++++++++-------------------------
 1 file changed, 18 insertions(+), 32 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 29ca4823cfb9..e43fe4dcd4e7 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -1455,18 +1455,22 @@ ConfigMainWindow::ConfigMainWindow(void)
 	addToolBar(toolBar);
 
 	backAction = new QAction(QPixmap(xpm_back), "Back", this);
-	  connect(backAction, SIGNAL(triggered(bool)), SLOT(goBack()));
-	  backAction->setEnabled(false);
+	connect(backAction, SIGNAL(triggered(bool)), SLOT(goBack()));
+
 	QAction *quitAction = new QAction("&Quit", this);
 	quitAction->setShortcut(Qt::CTRL + Qt::Key_Q);
-	  connect(quitAction, SIGNAL(triggered(bool)), SLOT(close()));
+	connect(quitAction, SIGNAL(triggered(bool)), SLOT(close()));
+
 	QAction *loadAction = new QAction(QPixmap(xpm_load), "&Load", this);
 	loadAction->setShortcut(Qt::CTRL + Qt::Key_L);
-	  connect(loadAction, SIGNAL(triggered(bool)), SLOT(loadConfig()));
+	connect(loadAction, SIGNAL(triggered(bool)), SLOT(loadConfig()));
+
 	saveAction = new QAction(QPixmap(xpm_save), "&Save", this);
 	saveAction->setShortcut(Qt::CTRL + Qt::Key_S);
-	  connect(saveAction, SIGNAL(triggered(bool)), SLOT(saveConfig()));
+	connect(saveAction, SIGNAL(triggered(bool)), SLOT(saveConfig()));
+
 	conf_set_changed_callback(conf_changed);
+
 	// Set saveAction's initial state
 	conf_changed();
 	configname = xstrdup(conf_get_configname());
@@ -1667,21 +1671,11 @@ void ConfigMainWindow::searchConfig(void)
 void ConfigMainWindow::changeItens(struct menu *menu)
 {
 	configList->setRootMenu(menu);
-
-	if (configList->rootEntry->parent == &rootmenu)
-		backAction->setEnabled(false);
-	else
-		backAction->setEnabled(true);
 }
 
 void ConfigMainWindow::changeMenu(struct menu *menu)
 {
 	menuList->setRootMenu(menu);
-
-	if (menuList->rootEntry->parent == &rootmenu)
-		backAction->setEnabled(false);
-	else
-		backAction->setEnabled(true);
 }
 
 void ConfigMainWindow::setMenuLink(struct menu *menu)
@@ -1748,25 +1742,11 @@ void ConfigMainWindow::listFocusChanged(void)
 
 void ConfigMainWindow::goBack(void)
 {
-	ConfigItem* item, *oldSelection;
+qInfo() << __FUNCTION__;
+	if (configList->rootEntry == &rootmenu)
+		return;
 
 	configList->setParentMenu();
-	if (configList->rootEntry == &rootmenu)
-		backAction->setEnabled(false);
-
-	if (menuList->selectedItems().count() == 0)
-		return;
-
-	item = (ConfigItem*)menuList->selectedItems().first();
-	oldSelection = item;
-	while (item) {
-		if (item->menu == configList->rootEntry) {
-			oldSelection->setSelected(false);
-			item->setSelected(true);
-			break;
-		}
-		item = (ConfigItem*)item->parent();
-	}
 }
 
 void ConfigMainWindow::showSingleView(void)
@@ -1778,6 +1758,8 @@ void ConfigMainWindow::showSingleView(void)
 	fullViewAction->setEnabled(true);
 	fullViewAction->setChecked(false);
 
+	backAction->setEnabled(true);
+
 	menuView->hide();
 	menuList->setRootMenu(0);
 	configList->mode = singleMode;
@@ -1797,6 +1779,8 @@ void ConfigMainWindow::showSplitView(void)
 	fullViewAction->setEnabled(true);
 	fullViewAction->setChecked(false);
 
+	backAction->setEnabled(false);
+
 	configList->mode = menuMode;
 	if (configList->rootEntry == &rootmenu)
 		configList->updateListAll();
@@ -1820,6 +1804,8 @@ void ConfigMainWindow::showFullView(void)
 	fullViewAction->setEnabled(false);
 	fullViewAction->setChecked(true);
 
+	backAction->setEnabled(false);
+
 	menuView->hide();
 	menuList->setRootMenu(0);
 	configList->mode = fullMode;
-- 
2.26.2

[PATCH v3 5/7] kconfig: qconf: simplify the goBack() logic

[Mauro Carvalho Chehab]

The goBack() logic is used only for the configList, as
it only makes sense on singleMode. So, let's simplify the
code.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 50 +++++++++++++++-------------------------
 1 file changed, 18 insertions(+), 32 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 29ca4823cfb9..e43fe4dcd4e7 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -1455,18 +1455,22 @@ ConfigMainWindow::ConfigMainWindow(void)
 	addToolBar(toolBar);
 
 	backAction = new QAction(QPixmap(xpm_back), "Back", this);
-	  connect(backAction, SIGNAL(triggered(bool)), SLOT(goBack()));
-	  backAction->setEnabled(false);
+	connect(backAction, SIGNAL(triggered(bool)), SLOT(goBack()));
+
 	QAction *quitAction = new QAction("&Quit", this);
 	quitAction->setShortcut(Qt::CTRL + Qt::Key_Q);
-	  connect(quitAction, SIGNAL(triggered(bool)), SLOT(close()));
+	connect(quitAction, SIGNAL(triggered(bool)), SLOT(close()));
+
 	QAction *loadAction = new QAction(QPixmap(xpm_load), "&Load", this);
 	loadAction->setShortcut(Qt::CTRL + Qt::Key_L);
-	  connect(loadAction, SIGNAL(triggered(bool)), SLOT(loadConfig()));
+	connect(loadAction, SIGNAL(triggered(bool)), SLOT(loadConfig()));
+
 	saveAction = new QAction(QPixmap(xpm_save), "&Save", this);
 	saveAction->setShortcut(Qt::CTRL + Qt::Key_S);
-	  connect(saveAction, SIGNAL(triggered(bool)), SLOT(saveConfig()));
+	connect(saveAction, SIGNAL(triggered(bool)), SLOT(saveConfig()));
+
 	conf_set_changed_callback(conf_changed);
+
 	// Set saveAction's initial state
 	conf_changed();
 	configname = xstrdup(conf_get_configname());
@@ -1667,21 +1671,11 @@ void ConfigMainWindow::searchConfig(void)
 void ConfigMainWindow::changeItens(struct menu *menu)
 {
 	configList->setRootMenu(menu);
-
-	if (configList->rootEntry->parent == &rootmenu)
-		backAction->setEnabled(false);
-	else
-		backAction->setEnabled(true);
 }
 
 void ConfigMainWindow::changeMenu(struct menu *menu)
 {
 	menuList->setRootMenu(menu);
-
-	if (menuList->rootEntry->parent == &rootmenu)
-		backAction->setEnabled(false);
-	else
-		backAction->setEnabled(true);
 }
 
 void ConfigMainWindow::setMenuLink(struct menu *menu)
@@ -1748,25 +1742,11 @@ void ConfigMainWindow::listFocusChanged(void)
 
 void ConfigMainWindow::goBack(void)
 {
-	ConfigItem* item, *oldSelection;
+qInfo() << __FUNCTION__;
+	if (configList->rootEntry == &rootmenu)
+		return;
 
 	configList->setParentMenu();
-	if (configList->rootEntry == &rootmenu)
-		backAction->setEnabled(false);
-
-	if (menuList->selectedItems().count() == 0)
-		return;
-
-	item = (ConfigItem*)menuList->selectedItems().first();
-	oldSelection = item;
-	while (item) {
-		if (item->menu == configList->rootEntry) {
-			oldSelection->setSelected(false);
-			item->setSelected(true);
-			break;
-		}
-		item = (ConfigItem*)item->parent();
-	}
 }
 
 void ConfigMainWindow::showSingleView(void)
@@ -1778,6 +1758,8 @@ void ConfigMainWindow::showSingleView(void)
 	fullViewAction->setEnabled(true);
 	fullViewAction->setChecked(false);
 
+	backAction->setEnabled(true);
+
 	menuView->hide();
 	menuList->setRootMenu(0);
 	configList->mode = singleMode;
@@ -1797,6 +1779,8 @@ void ConfigMainWindow::showSplitView(void)
 	fullViewAction->setEnabled(true);
 	fullViewAction->setChecked(false);
 
+	backAction->setEnabled(false);
+
 	configList->mode = menuMode;
 	if (configList->rootEntry == &rootmenu)
 		configList->updateListAll();
@@ -1820,6 +1804,8 @@ void ConfigMainWindow::showFullView(void)
 	fullViewAction->setEnabled(false);
 	fullViewAction->setChecked(true);
 
+	backAction->setEnabled(false);
+
 	menuView->hide();
 	menuList->setRootMenu(0);
 	configList->mode = fullMode;
-- 
2.26.2

[PATCH v3 6/7] kconfig: qconf: don't show goback button on splitMode

[Mauro Carvalho Chehab]

the goback button does nothing on splitMode. So, why display
it?

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index e43fe4dcd4e7..6a327b69ff5f 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -437,9 +437,10 @@ void ConfigList::updateList(ConfigItem* item)
 	if (rootEntry != &rootmenu && (mode == singleMode ||
 	    (mode == symbolMode && rootEntry->parent != &rootmenu))) {
 		item = (ConfigItem *)topLevelItem(0);
-		if (!item)
+		if (!item && mode != symbolMode) {
 			item = new ConfigItem(this, 0, true);
-		last = item;
+			last = item;
+		}
 	}
 	if ((mode == singleMode || (mode == symbolMode && !(rootEntry->flags & MENU_ROOT))) &&
 	    rootEntry->sym && rootEntry->prompt) {
-- 
2.26.2

[PATCH v3 6/7] kconfig: qconf: don't show goback button on splitMode

[Mauro Carvalho Chehab]

the goback button does nothing on splitMode. So, why display
it?

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index e43fe4dcd4e7..6a327b69ff5f 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -437,9 +437,10 @@ void ConfigList::updateList(ConfigItem* item)
 	if (rootEntry != &rootmenu && (mode == singleMode ||
 	    (mode == symbolMode && rootEntry->parent != &rootmenu))) {
 		item = (ConfigItem *)topLevelItem(0);
-		if (!item)
+		if (!item && mode != symbolMode) {
 			item = new ConfigItem(this, 0, true);
-		last = item;
+			last = item;
+		}
 	}
 	if ((mode == singleMode || (mode == symbolMode && !(rootEntry->flags & MENU_ROOT))) &&
 	    rootEntry->sym && rootEntry->prompt) {
-- 
2.26.2

Re: [PATCH v3 6/7] kconfig: qconf: don't show goback button on splitMode

[Maxim Levitsky]

On Tue, 2020-06-30 at 08:26 +0200, Mauro Carvalho Chehab wrote:
> the goback button does nothing on splitMode. So, why display
> it?
> 
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> ---
>  scripts/kconfig/qconf.cc | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
> index e43fe4dcd4e7..6a327b69ff5f 100644
> --- a/scripts/kconfig/qconf.cc
> +++ b/scripts/kconfig/qconf.cc
> @@ -437,9 +437,10 @@ void ConfigList::updateList(ConfigItem* item)
>  	if (rootEntry != &rootmenu && (mode == singleMode ||
>  	    (mode == symbolMode && rootEntry->parent != &rootmenu))) {
>  		item = (ConfigItem *)topLevelItem(0);
> -		if (!item)
> +		if (!item && mode != symbolMode) {
>  			item = new ConfigItem(this, 0, true);
> -		last = item;
> +			last = item;
> +		}
>  	}
>  	if ((mode == singleMode || (mode == symbolMode && !(rootEntry->flags & MENU_ROOT))) &&
>  	    rootEntry->sym && rootEntry->prompt) {

I finally found some time to debug this.

This patch make xconfig crash when you try to select a menu that opens a submenu.

This is the backtrace:

#0  0x000000000041d196 in ConfigItem::testUpdateMenu(bool) ()
#1  0x000000000041e2f8 in ConfigList::updateList(ConfigItem*) ()
#2  0x0000000000420e3a in ConfigList::setRootMenu(menu*) ()
#3  0x00007ffff7
0f1fb0 in void doActivate<false>(QObject*, int, void**) () at /lib64/libQt5Core.so.5
#4  0x000000000041bd22 in ConfigList::menuSelected(menu*) ()
#5  0x0000000000425eb0 in
ConfigList::mouseDoubleClickEvent(QMouseEvent*) ()
#6  0x00007ffff7a9fcd1 in QWidget::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#7  0x00007ffff7b483b2 in QFrame::event(QEvent*) () at
/lib64/libQt5Widgets.so.5
#8  0x00007ffff70c2d2e in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#9  0x00007ffff7a5e052 in
QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#10 0x00007ffff7a63891 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#11
0x00007ffff70c2fc0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#12 0x00007ffff7a6278a in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*,
QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) ()
    at /lib64/libQt5Widgets.so.5
#13 0x00007ffff7ab7f82 in QWidgetWindow::handleMouseEvent(QMouseEvent*) () at /lib64/libQt5Widgets.so.5
#14
0x00007ffff7abadde in QWidgetWindow::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#15 0x00007ffff7a5e063 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#16
0x00007ffff70c2fc0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#17 0x00007ffff74a7142 in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /lib64/libQt5Gui.so.5
#18 0x00007ffff748915b in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Gui.so.5
#19 0x00007fffe6ecdc9e in xcbSourceDispatch(_GSource*, int (*)(void*), void*) () at
/lib64/libQt5XcbQpa.so.5
#20 0x00007ffff605b7af in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#21 0x00007ffff605bb38 in g_main_context_iterate.constprop () at /lib64/libglib-2.0.so.0
#22
0x00007ffff605bc03 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#23 0x00007ffff710eb73 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#24 0x00007ffff70c191b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#25 0x00007ffff70c95a6 in QCoreApplication::exec() () at
/lib64/libQt5Core.so.5
#26 0x000000000040e553 in main ()




For example:
'Input device support'->'Keyboards'

Maybe we shoudld just revert it? I tried to understand the code a little bit,
but no luck yet to understand how the whole thing works.

Best regards,
	Maxim Levitsky

[PATCH v3 7/7] kconfig: qconf: navigate menus on hyperlinks

[Mauro Carvalho Chehab]

Instead of just changing the helper window to show a
dependency, also navigate to it at the config and menu
widgets.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 24 +++++-------------------
 1 file changed, 5 insertions(+), 19 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 6a327b69ff5f..f49fbac91995 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -1233,7 +1233,6 @@ void ConfigInfoView::clicked(const QUrl &url)
 	char *data = new char[count + 1];
 	struct symbol **result;
 	struct menu *m = NULL;
-	char type;
 
 	if (count < 1) {
 		qInfo() << "Clicked link is empty";
@@ -1243,7 +1242,6 @@ void ConfigInfoView::clicked(const QUrl &url)
 
 	memcpy(data, str.constData(), count);
 	data[count] = '\0';
-	type = data[0];
 
 	/* Seek for exact match */
 	data[0] = '^';
@@ -1256,15 +1254,8 @@ void ConfigInfoView::clicked(const QUrl &url)
 	}
 
 	sym = *result;
-	if (type == 's') {
-		symbolInfo();
-		emit showDebugChanged(true);
-		free(result);
-		delete data;
-		return;
-	}
 
-	/* URL is a menu */
+	/* Seek for the menu which holds the symbol */
 	for (struct property *prop = sym->prop; prop; prop = prop->next) {
 		    if (prop->type != P_PROMPT && prop->type != P_MENU)
 			    continue;
@@ -1272,17 +1263,11 @@ void ConfigInfoView::clicked(const QUrl &url)
 		    break;
 	}
 
-	if (!m) {
+	if (!m)
 		qInfo() << "Clicked menu is invalid:" << data;
-		free(result);
-		delete data;
-		return;
-	}
+	else
+		emit menuSelected(m);
 
-	_menu = m;
-	menuInfo();
-
-	emit showDebugChanged(true);
 	free(result);
 	delete data;
 }
@@ -1731,6 +1716,7 @@ void ConfigMainWindow::setMenuLink(struct menu *menu)
 			list->setSelected(item, true);
 			list->scrollToItem(item);
 			list->setFocus();
+			helpText->setInfo(menu);
 		}
 	}
 }
-- 
2.26.2

[PATCH v3 7/7] kconfig: qconf: navigate menus on hyperlinks

[Mauro Carvalho Chehab]

Instead of just changing the helper window to show a
dependency, also navigate to it at the config and menu
widgets.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kconfig/qconf.cc | 24 +++++-------------------
 1 file changed, 5 insertions(+), 19 deletions(-)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 6a327b69ff5f..f49fbac91995 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -1233,7 +1233,6 @@ void ConfigInfoView::clicked(const QUrl &url)
 	char *data = new char[count + 1];
 	struct symbol **result;
 	struct menu *m = NULL;
-	char type;
 
 	if (count < 1) {
 		qInfo() << "Clicked link is empty";
@@ -1243,7 +1242,6 @@ void ConfigInfoView::clicked(const QUrl &url)
 
 	memcpy(data, str.constData(), count);
 	data[count] = '\0';
-	type = data[0];
 
 	/* Seek for exact match */
 	data[0] = '^';
@@ -1256,15 +1254,8 @@ void ConfigInfoView::clicked(const QUrl &url)
 	}
 
 	sym = *result;
-	if (type == 's') {
-		symbolInfo();
-		emit showDebugChanged(true);
-		free(result);
-		delete data;
-		return;
-	}
 
-	/* URL is a menu */
+	/* Seek for the menu which holds the symbol */
 	for (struct property *prop = sym->prop; prop; prop = prop->next) {
 		    if (prop->type != P_PROMPT && prop->type != P_MENU)
 			    continue;
@@ -1272,17 +1263,11 @@ void ConfigInfoView::clicked(const QUrl &url)
 		    break;
 	}
 
-	if (!m) {
+	if (!m)
 		qInfo() << "Clicked menu is invalid:" << data;
-		free(result);
-		delete data;
-		return;
-	}
+	else
+		emit menuSelected(m);
 
-	_menu = m;
-	menuInfo();
-
-	emit showDebugChanged(true);
 	free(result);
 	delete data;
 }
@@ -1731,6 +1716,7 @@ void ConfigMainWindow::setMenuLink(struct menu *menu)
 			list->setSelected(item, true);
 			list->scrollToItem(item);
 			list->setFocus();
+			helpText->setInfo(menu);
 		}
 	}
 }
-- 
2.26.2

[PATCH v3.1 7/7] kconfig: qconf: navigate menus on hyperlinks

[Mauro Carvalho Chehab]

Instead of just changing the helper window to show a
dependency, also navigate to it at the config and menu
widgets.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>


---

I ended re-sending the same version as on patch series 2. Please
consider this patch instead.

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 6a327b69ff5f..fd721c6c4c94 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -1233,7 +1233,6 @@ void ConfigInfoView::clicked(const QUrl &url)
 	char *data = new char[count + 1];
 	struct symbol **result;
 	struct menu *m = NULL;
-	char type;
 
 	if (count < 1) {
 		qInfo() << "Clicked link is empty";
@@ -1243,7 +1242,6 @@ void ConfigInfoView::clicked(const QUrl &url)
 
 	memcpy(data, str.constData(), count);
 	data[count] = '\0';
-	type = data[0];
 
 	/* Seek for exact match */
 	data[0] = '^';
@@ -1256,15 +1254,8 @@ void ConfigInfoView::clicked(const QUrl &url)
 	}
 
 	sym = *result;
-	if (type == 's') {
-		symbolInfo();
-		emit showDebugChanged(true);
-		free(result);
-		delete data;
-		return;
-	}
 
-	/* URL is a menu */
+	/* Seek for the menu which holds the symbol */
 	for (struct property *prop = sym->prop; prop; prop = prop->next) {
 		    if (prop->type != P_PROMPT && prop->type != P_MENU)
 			    continue;
@@ -1273,16 +1264,13 @@ void ConfigInfoView::clicked(const QUrl &url)
 	}
 
 	if (!m) {
-		qInfo() << "Clicked menu is invalid:" << data;
-		free(result);
-		delete data;
-		return;
+		/* Symbol is not visible as a menu */
+		symbolInfo();
+		emit showDebugChanged(true);
+	} else {
+		emit menuSelected(m);
 	}
 
-	_menu = m;
-	menuInfo();
-
-	emit showDebugChanged(true);
 	free(result);
 	delete data;
 }
@@ -1731,6 +1719,7 @@ void ConfigMainWindow::setMenuLink(struct menu *menu)
 			list->setSelected(item, true);
 			list->scrollToItem(item);
 			list->setFocus();
+			helpText->setInfo(menu);
 		}
 	}
 }

Re: [PATCH v3.1 7/7] kconfig: qconf: navigate menus on hyperlinks

[Masahiro Yamada]

On Tue, Jun 30, 2020 at 3:48 PM Mauro Carvalho Chehab
<mchehab+huawei@kernel.org> wrote:
>
> Instead of just changing the helper window to show a
> dependency, also navigate to it at the config and menu
> widgets.
>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
>
>
> ---
>
> I ended re-sending the same version as on patch series 2.

Do you mean this one should substitute 7/7 in v3, right?

Applied to linux-kbuild.



> Please
> consider this patch instead.
>
> diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
> index 6a327b69ff5f..fd721c6c4c94 100644
> --- a/scripts/kconfig/qconf.cc
> +++ b/scripts/kconfig/qconf.cc
> @@ -1233,7 +1233,6 @@ void ConfigInfoView::clicked(const QUrl &url)
>         char *data = new char[count + 1];
>         struct symbol **result;
>         struct menu *m = NULL;
> -       char type;
>
>         if (count < 1) {
>                 qInfo() << "Clicked link is empty";
> @@ -1243,7 +1242,6 @@ void ConfigInfoView::clicked(const QUrl &url)
>
>         memcpy(data, str.constData(), count);
>         data[count] = '\0';
> -       type = data[0];
>
>         /* Seek for exact match */
>         data[0] = '^';
> @@ -1256,15 +1254,8 @@ void ConfigInfoView::clicked(const QUrl &url)
>         }
>
>         sym = *result;
> -       if (type == 's') {
> -               symbolInfo();
> -               emit showDebugChanged(true);
> -               free(result);
> -               delete data;
> -               return;
> -       }
>
> -       /* URL is a menu */
> +       /* Seek for the menu which holds the symbol */
>         for (struct property *prop = sym->prop; prop; prop = prop->next) {
>                     if (prop->type != P_PROMPT && prop->type != P_MENU)
>                             continue;
> @@ -1273,16 +1264,13 @@ void ConfigInfoView::clicked(const QUrl &url)
>         }
>
>         if (!m) {
> -               qInfo() << "Clicked menu is invalid:" << data;
> -               free(result);
> -               delete data;
> -               return;
> +               /* Symbol is not visible as a menu */
> +               symbolInfo();
> +               emit showDebugChanged(true);
> +       } else {
> +               emit menuSelected(m);
>         }
>
> -       _menu = m;
> -       menuInfo();
> -
> -       emit showDebugChanged(true);
>         free(result);
>         delete data;
>  }
> @@ -1731,6 +1719,7 @@ void ConfigMainWindow::setMenuLink(struct menu *menu)
>                         list->setSelected(item, true);
>                         list->scrollToItem(item);
>                         list->setFocus();
> +                       helpText->setInfo(menu);
>                 }
>         }
>  }



-- 
Best Regards
Masahiro Yamada

Re: [PATCH v3.1 7/7] kconfig: qconf: navigate menus on hyperlinks

[Mauro Carvalho Chehab]

Em Thu, 2 Jul 2020 00:21:36 +0900
Masahiro Yamada <masahiroy@kernel.org> escreveu:

> On Tue, Jun 30, 2020 at 3:48 PM Mauro Carvalho Chehab
> <mchehab+huawei@kernel.org> wrote:
> >
> > Instead of just changing the helper window to show a
> > dependency, also navigate to it at the config and menu
> > widgets.
> >
> > Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> >
> >
> > ---
> >
> > I ended re-sending the same version as on patch series 2.  
> 
> Do you mean this one should substitute 7/7 in v3, right?

Yes.

> Applied to linux-kbuild.

Thank you!

Mauro

Re: [PATCH v3.1 7/7] kconfig: qconf: navigate menus on hyperlinks

[Maxim Levitsky]

On Wed, 2020-07-01 at 17:51 +0200, Mauro Carvalho Chehab wrote:
> Em Thu, 2 Jul 2020 00:21:36 +0900
> Masahiro Yamada <masahiroy@kernel.org> escreveu:
> 
> > On Tue, Jun 30, 2020 at 3:48 PM Mauro Carvalho Chehab
> > <mchehab+huawei@kernel.org> wrote:
> > > Instead of just changing the helper window to show a
> > > dependency, also navigate to it at the config and menu
> > > widgets.
> > > 
> > > Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> > > 
> > > 
> > > ---
> > > 
> > > I ended re-sending the same version as on patch series 2.  
> > 
> > Do you mean this one should substitute 7/7 in v3, right?
> 
> Yes.
> 
> > Applied to linux-kbuild.
> 
> Thank you!
> 
> Mauro
> 

I tested these series yestarday, but found a but which I haven't yet had time to debug.
Now when I click on a item that goes to a submenu in the right panel, the app
segfaults. I'll debug this soon.


Best regards,
	Maxim evitsky

Re: [PATCH v3 0/7] Fix split view search and debug info navigation

[Masahiro Yamada]

On Tue, Jun 30, 2020 at 3:26 PM Mauro Carvalho Chehab
<mchehab+huawei@kernel.org> wrote:
>
> This series fixes some issues with search while on split view and fix the
> broken hyperlink navigation.
>
> The first patches restore the pre-Qt5 conversion behavior. The last
> one implements navigation on a different way. I opted to keep this one
> in separate, as this one is a new feature.
>
> -


Series, I applied to linux-kbuild/fixes.
(I used v3.1 for 7/7)


If Maxim gives Tested-by or something,
I will append it.





> v3:
>
> - dropped a patch that it is not needed anymore;
> - hyperlinks should now work for non-visible items;
> - fixed a description at patch 3.
>
> Mauro Carvalho Chehab (7):
>   kconfig: qconf: cleanup includes
>   kconfig: qconf: make search fully work again on split mode
>   kconfig: qconf: make debug links work again
>   kconfig: qconf: re-implement setSelected()
>   kconfig: qconf: simplify the goBack() logic
>   kconfig: qconf: don't show goback button on splitMode
>   kconfig: qconf: navigate menus on hyperlinks
>
>  scripts/kconfig/qconf.cc | 169 +++++++++++++++++++++++----------------
>  scripts/kconfig/qconf.h  |  29 ++++---
>  2 files changed, 119 insertions(+), 79 deletions(-)
>
> --
> 2.26.2
>
>


-- 
Best Regards
Masahiro Yamada