keepassxc/src/gui/EditWidgetIcons.h
Daniel Wilches 78ef6f0d04 Grey out Apply button when there are no changes
Resolves #1313

What this commit does:
* Whenever the Apply button is pressed, and if the save was successful, then the Apply button is disabled.
* Each subwidget used by EditEntryWidget has now a signal called `widgetUpdated` that is emitted when the widgets' internal content changes. The EditEntryWidget subscribes to that signal to know when to enable the Apply button (by calling `entryUpdated()`).
* There are some views that are not isolated in their own widgets (`m_advancedUi`, for example) so in those cases I invoked `entryUpdated()` directly whenever I detected an update:
  * some updates occur directly in a Qt widget like when editing the text of a QLineItem, so in that case I connected the widget's signals directly to the `entryUpdated()` slot.
  * some updates occur in EditEntryWidget, so in those cases the invocation to `entryUpdated()` is made as soon as the change is detected (for example when the user has confirmed an action in a dialog).

A known problem: there are some situations when the Apply button will get enabled even if there are no changes, this is because the app changes the value of a field by itself so it's considered an update (for example, clicking on the "Reveal" button changes the text shown in a text field).
The solution to this can be a bit complicated: disabling temporarily the `entryUpdated()` whenever the app is going to do an action with such side-effects.
So I preferred to let the Apply button get enabled in those cases.
2018-03-29 18:35:08 -07:00

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/*
* Copyright (C) 2012 Felix Geyer <debfx@fobos.de>
* Copyright (C) 2017 KeePassXC Team <team@keepassxc.org>
*
* 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 2 or (at your option)
* version 3 of the License.
*
* 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/>.
*/
#ifndef KEEPASSX_EDITWIDGETICONS_H
#define KEEPASSX_EDITWIDGETICONS_H
#include <QWidget>
#include <QSet>
#include <QUrl>
#include "config-keepassx.h"
#include "core/Global.h"
#include "core/Uuid.h"
#include "gui/MessageWidget.h"
class Database;
class DefaultIconModel;
class CustomIconModel;
namespace Ui {
class EditWidgetIcons;
}
struct IconStruct
{
IconStruct();
Uuid uuid;
int number;
};
class EditWidgetIcons : public QWidget
{
Q_OBJECT
public:
explicit EditWidgetIcons(QWidget* parent = nullptr);
~EditWidgetIcons();
IconStruct state();
void reset();
void load(const Uuid& currentUuid, Database* database, const IconStruct& iconStruct, const QString& url = "");
public slots:
void setUrl(const QString& url);
signals:
void messageEditEntry(QString, MessageWidget::MessageType);
void messageEditEntryDismiss();
void widgetUpdated();
private slots:
void downloadFavicon();
#ifdef WITH_XC_NETWORKING
QImage fetchFavicon(const QUrl& url);
#endif
void addCustomIconFromFile();
void addCustomIcon(const QImage& icon);
void removeCustomIcon();
void updateWidgetsDefaultIcons(bool checked);
void updateWidgetsCustomIcons(bool checked);
void updateRadioButtonDefaultIcons();
void updateRadioButtonCustomIcons();
private:
const QScopedPointer<Ui::EditWidgetIcons> m_ui;
Database* m_database;
Uuid m_currentUuid;
QString m_url;
DefaultIconModel* const m_defaultIconModel;
CustomIconModel* const m_customIconModel;
Q_DISABLE_COPY(EditWidgetIcons)
};
#endif // KEEPASSX_EDITWIDGETICONS_H