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[DolphinView] Fix "Folder is empty" label showing prematurely

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Don't show the label while still loading. Since there is no property in
`KDirLister` a dedicated `m_loading` is added for this purpose.

Also, I removed the explicit update on `urlChanged` as the view
probably won't change until the lister starts loading.

BUG: 430085
This commit is contained in:
Kai Uwe Broulik 2021-01-15 17:51:33 +01:00
parent 6945a54004
commit 2e79e21c3f
2 changed files with 23 additions and 6 deletions
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22
src/views/dolphinview.cpp
View file

@ -67,6 +67,7 @@ DolphinView::DolphinView(const QUrl& url, QWidget* parent) :
m_assureVisibleCurrentIndex(false),
m_isFolderWritable(true),
m_dragging(false),
m_loading(false),
m_url(url),
m_viewPropertiesContext(),
m_mode(DolphinView::IconsView),
@ -165,7 +166,7 @@ DolphinView::DolphinView(const QUrl& url, QWidget* parent) :
connect(m_model, &KFileItemModel::directoryLoadingStarted, this, &DolphinView::slotDirectoryLoadingStarted);
connect(m_model, &KFileItemModel::directoryLoadingCompleted, this, &DolphinView::slotDirectoryLoadingCompleted);
connect(m_model, &KFileItemModel::directoryLoadingCanceled, this, &DolphinView::directoryLoadingCanceled);
connect(m_model, &KFileItemModel::directoryLoadingCanceled, this, &DolphinView::slotDirectoryLoadingCanceled);
connect(m_model, &KFileItemModel::directoryLoadingProgress, this, &DolphinView::directoryLoadingProgress);
connect(m_model, &KFileItemModel::directorySortingProgress, this, &DolphinView::directorySortingProgress);
connect(m_model, &KFileItemModel::itemsChanged,
@ -179,8 +180,6 @@ DolphinView::DolphinView(const QUrl& url, QWidget* parent) :
connect(this, &DolphinView::itemCountChanged,
this, &DolphinView::updatePlaceholderLabel);
connect(this, &DolphinView::urlChanged,
this, &DolphinView::updatePlaceholderLabel);
m_view->installEventFilter(this);
connect(m_view, &DolphinItemListView::sortOrderChanged,
@ -1624,8 +1623,8 @@ void DolphinView::slotRenamingResult(KJob* job)
void DolphinView::slotDirectoryLoadingStarted()
{
// We don't want the placeholder label to flicker while the folder is loading
m_placeholderLabel->setVisible(false);
m_loading = true;
updatePlaceholderLabel();
// Disable the writestate temporary until it can be determined in a fast way
// in DolphinView::slotDirectoryLoadingCompleted()
@ -1639,6 +1638,8 @@ void DolphinView::slotDirectoryLoadingStarted()
void DolphinView::slotDirectoryLoadingCompleted()
{
m_loading = false;
// Update the view-state. This has to be done asynchronously
// because the view might not be in its final state yet.
QTimer::singleShot(0, this, &DolphinView::updateViewState);
@ -1652,6 +1653,15 @@ void DolphinView::slotDirectoryLoadingCompleted()
updateWritableState();
}
void DolphinView::slotDirectoryLoadingCanceled()
{
m_loading = false;
updatePlaceholderLabel();
Q_EMIT directoryLoadingCanceled();
}
void DolphinView::slotItemsChanged()
{
m_assureVisibleCurrentIndex = false;
@ -2016,7 +2026,7 @@ void DolphinView::slotSwipeUp()
void DolphinView::updatePlaceholderLabel()
{
if (itemsCount() > 0) {
if (m_loading || itemsCount() > 0) {
m_placeholderLabel->setVisible(false);
return;
}

7
src/views/dolphinview.h
View file

@ -689,6 +689,12 @@ private slots:
*/
void slotDirectoryLoadingCompleted();
/**
* Invoked when the file item model indicates that the loading of a directory has
* been canceled.
*/
void slotDirectoryLoadingCanceled();
/**
* Is invoked when items of KFileItemModel have been changed.
*/
@ -816,6 +822,7 @@ private:
bool m_isFolderWritable;
bool m_dragging; // True if a dragging is done. Required to be able to decide whether a
// tooltip may be shown when hovering an item.
bool m_loading;
QUrl m_url;
QString m_viewPropertiesContext;