Add "What's This?" to nearly everything in the main window

Summary:
This commit adds "What's This?" help to nearly everything in the
Dolphin main window (panels, views, buttons, ...). It adds the "?"
to the title bar so this help can easily be called.

For links in those help texts to work the WhatsThisClickedEvents are
handled in the main window class. This doesn't work for menus because
events from them aren't forwarded to the main window for some
reason so EventFilters are installed for the Control button menus.

Modifying the "Help" menu of KXmlGui is deprecated so no EventFilter
can be installed in the menubar. Therefore help texts without links
are provided for the menubar.

Test Plan:
Check if the event handling might make any problems.
Check for any big mistakes in the help messages.

Reviewers: #dolphin, elvisangelaccio

Subscribers: broulik, elvisangelaccio, yurchor, kfm-devel

Tags: #dolphin

Differential Revision: https://phabricator.kde.org/D20471

1 files changed, 24 insertions, 0 deletions

diff --git a/src/dolphinviewcontainer.cpp b/src/dolphinviewcontainer.cpp
index 1e5d0f7d1..5d1d257e5 100644
--- a/src/dolphinviewcontainer.cpp
+++ b/src/dolphinviewcontainer.cpp
@@ -80,6 +80,18 @@ DolphinViewContainer::DolphinViewContainer(const QUrl& url, QWidget* parent) :
     QHBoxLayout* navigatorLayout = new QHBoxLayout(m_navigatorWidget);
     navigatorLayout->setSpacing(0);
     navigatorLayout->setContentsMargins(0, 0, 0, 0);
+    m_navigatorWidget->setWhatsThis(xi18nc("@info:whatsthis location bar",
+        "<para>This line describes the location of the files and folders "
+        "displayed below.</para><para>The name of the currently viewed "
+        "folder can be read at the very right. To the left of it is the "
+        "name of the folder that contains it. The whole line is called "
+        "the <emphasis>path</emphasis> to the current location because "
+        "following these folders from left to right leads here.</para>"
+        "<para>The path is displayed on the <emphasis>location bar</emphasis> "
+        "which is more powerful than one would expect. To learn more "
+        "about the basic and advanced features of the location bar "
+        "<link url='help:/dolphin/location-bar.html'>click here</link>. "
+        "This will open the dedicated page in the Handbook.</para>"));
 
     m_urlNavigator = new KUrlNavigator(DolphinPlacesModelSingleton::instance().placesModel(), url, this);
     connect(m_urlNavigator, &KUrlNavigator::activated,
@@ -107,6 +119,18 @@ DolphinViewContainer::DolphinViewContainer(const QUrl& url, QWidget* parent) :
     connect(m_searchBox, &DolphinSearchBox::closeRequest, this, &DolphinViewContainer::closeSearchBox);
     connect(m_searchBox, &DolphinSearchBox::searchRequest, this, &DolphinViewContainer::startSearching);
     connect(m_searchBox, &DolphinSearchBox::returnPressed, this, &DolphinViewContainer::requestFocus);
+    m_searchBox->setWhatsThis(xi18nc("@info:whatsthis findbar",
+        "<para>This helps you find files and folders. Enter a <emphasis>"
+        "search term</emphasis> and specify search settings with the "
+        "buttons at the bottom:<list><item>Filename/Content: "
+        "Does the item you are looking for contain the search terms "
+        "within its filename or its contents?<nl/>The contents of images, "
+        "audio files and videos will not be searched.</item><item>"
+        "From Here/Everywhere: Do you want to search in this "
+        "folder and its sub-folders or everywhere?</item><item>"
+        "More Options: Click this to search by media type, access "
+        "time or rating.</item><item>More Search Tools: Install other "
+        "means to find an item.</item></list></para>"));
 
     m_messageWidget = new KMessageWidget(this);
     m_messageWidget->setCloseButtonVisible(true);