/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <view/SlsPageObjectLayouter.hxx>
#include <view/SlsToolTip.hxx>
#include <view/SlideSorterView.hxx>
#include <view/SlsLayouter.hxx>
#include <SlideSorter.hxx>
#include <Window.hxx>
#include <sdpage.hxx>
#include <sdresid.hxx>
#include <strings.hrc>
#include <osl/diagnose.h>
#include <vcl/settings.hxx>
#include <vcl/help.hxx>
namespace sd::slidesorter::view {
ToolTip::ToolTip (SlideSorter& rSlideSorter)
: mrSlideSorter(rSlideSorter),
mnHelpWindowHandle(nullptr),
maShowTimer(
"sd::slidesorter::view::ToolTip maShowTimer"),
maHiddenTimer(
"sd::slidesorter::view::ToolTip maHiddenTimer")
{
maShowTimer.SetTimeout(HelpSettings::GetTipDelay());
maShowTimer.SetInvokeHandler(LINK(
this, ToolTip, DelayTrigger));
maHiddenTimer.SetTimeout(HelpSettings::GetTipDelay());
}
ToolTip::~ToolTip()
{
maShowTimer.Stop();
maHiddenTimer.Stop();
Hide();
}
void ToolTip::SetPage (
const model::SharedPageDescriptor& rpDescriptor)
{
if (mpDescriptor == rpDescriptor)
return;
maShowTimer.Stop();
bool bWasVisible = Hide();
if (bWasVisible)
{
maHiddenTimer.Start();
}
mpDescriptor = rpDescriptor;
if (mpDescriptor)
{
SdPage* pPage = mpDescriptor->GetPage();
OUString sHelpText;
if (pPage != nullptr)
sHelpText = pPage->GetName();
else
{
OSL_ASSERT(mpDescriptor->GetPage() != nullptr);
}
if (sHelpText.isEmpty())
{
sHelpText = SdResId(STR_PAGE) +
OUString::number(mpDescriptor->GetPageIndex()+1);
}
msCurrentHelpText = sHelpText;
// show new tooltip immediately, if last one was recently hidden
if(maHiddenTimer.IsActive())
DoShow();
else
maShowTimer.Start();
}
else
{
msCurrentHelpText.clear();
}
}
void ToolTip::DoShow()
{
if (maShowTimer.IsActive())
{
// The delay timer is active. Wait for it to trigger the showing of
// the tool tip.
return;
}
sd::Window *pWindow (mrSlideSorter.GetContentWindow().get());
if (msCurrentHelpText.isEmpty() || !pWindow)
return;
::tools::Rectangle aBox (
mrSlideSorter.GetView().GetLayouter().GetPageObjectLayouter()->GetBoundingBox(
mpDescriptor,
PageObjectLayouter::Part::Preview,
PageObjectLayouter::WindowCoordinateSystem));
// Do not show the help text when the (lower edge of the ) preview
// is not visible. The tool tip itself may still be outside the
// window.
if (aBox.Bottom() >= pWindow->GetSizePixel().Height())
return;
vcl::Window* pParent(pWindow);
while (pParent->GetParent())
pParent = pParent->GetParent();
const Point aOffset(pWindow->GetWindowExtentsRelative(*pParent).TopLeft());
// We do not know how high the tool tip will be but want its top
// edge not its bottom to be at a specific position (a little below
// the preview). Therefore we use a little trick and place the tool
// tip at the top of a rectangle that is placed below the preview.
aBox.Move(aOffset.X(), aOffset.Y() + aBox.GetHeight() + 3);
mnHelpWindowHandle = Help::ShowPopover(
pWindow,
aBox,
msCurrentHelpText,
QuickHelpFlags::Center | QuickHelpFlags::Top);
}
bool ToolTip::Hide()
{
if (mnHelpWindowHandle)
{
sd::Window *pWindow (mrSlideSorter.GetContentWindow().get());
Help::HidePopover(pWindow, mnHelpWindowHandle);
mnHelpWindowHandle = nullptr;
return true;
}
else
return false;
}
IMPL_LINK_NOARG(ToolTip, DelayTrigger, Timer *,
void)
{
DoShow();
}
}
// end of namespace ::sd::slidesorter::view
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */