void IconController::startLoader()
{
// FIXME: We kick off the icon loader when the frame is done receiving its main resource.
// But we should instead do it when we're done parsing the head element.
if (!m_frame->loader()->isLoadingMainFrame())
return;
if (!iconDatabase().isEnabled())
return;
ASSERT(!m_frame->tree()->parent());
if (!documentCanHaveIcon(m_frame->document()->url()))
return;
KURL iconURL(url());
String urlString(iconURL.string());
if (urlString.isEmpty())
return;
// People who want to avoid loading images generally want to avoid loading all images, unless an exception has been made for site icons.
// Now that we've accounted for URL mapping, avoid starting the network load if images aren't set to display automatically.
Settings* settings = m_frame->settings();
if (settings && !settings->loadsImagesAutomatically() && !settings->loadsSiteIconsIgnoringImageLoadingSetting())
return;
// If we're reloading the page, always start the icon load now.
// FIXME: How can this condition ever be true?
if (m_frame->loader()->loadType() == FrameLoadTypeReload && m_frame->loader()->loadType() == FrameLoadTypeReloadFromOrigin) {
continueLoadWithDecision(IconLoadYes);
return;
}
if (iconDatabase().supportsAsynchronousMode()) {
// FIXME (<rdar://problem/9168605>) - We should support in-memory-only private browsing icons in asynchronous icon database mode.
if (iconDatabase().supportsAsynchronousMode() && m_frame->page()->settings()->privateBrowsingEnabled())
return;
m_frame->loader()->documentLoader()->getIconLoadDecisionForIconURL(urlString);
// Commit the icon url mapping to the database just in case we don't end up loading later.
commitToDatabase(iconURL);
return;
}
IconLoadDecision decision = iconDatabase().synchronousLoadDecisionForIconURL(urlString, m_frame->loader()->documentLoader());
if (decision == IconLoadUnknown) {
// In this case, we may end up loading the icon later, but we still want to commit the icon url mapping to the database
// just in case we don't end up loading later - if we commit the mapping a second time after the load, that's no big deal
// We also tell the client to register for the notification that the icon is received now so it isn't missed in case the
// icon is later read in from disk
LOG(IconDatabase, "IconController %p might load icon %s later", this, urlString.ascii().data());
m_waitingForLoadDecision = true;
m_frame->loader()->client()->registerForIconNotification();
commitToDatabase(iconURL);
return;
}
continueLoadWithDecision(decision);
}
void NewJoinWidget::changeInfo()
{
refresh();
int flag = view->currentIndex().column();
if (flag == 0) {
QMessageBox::information(this, tr("修改操作失败"),
tr("没找到您选择了哪一行哎～～<p>请您先选择待修改的行好吗？"));
return;
}
int rowNum = view->currentIndex().row();
ChangeInfoDialog changeInfoDialog(sqlModel, rowNum);
if (changeInfoDialog.exec() == QDialog::QDialog::Rejected) {
return;
}
changeRowInfo(changeInfoDialog, rowNum);
commitToDatabase();
// 按照显示内容重新调整列宽度
view->resizeColumnsToContents();
}
void NewJoinWidget::submitDataChange()
{
int choose = QMessageBox::question(this, tr("数据提交确认"),
tr("<H3>您确认要把当前数据表显示的数据提交到数据库吗？</H3>"
"<p><font color=red>* 注意此操作不可逆！</font>"),
QMessageBox::Yes | QMessageBox::No);
if (choose == QMessageBox::Yes) {
commitToDatabase();
}
// 按照显示内容重新调整列宽度
view->resizeColumnsToContents();
}
void IconController::continueLoadWithDecision(IconLoadDecision iconLoadDecision)
{
ASSERT(iconLoadDecision != IconLoadUnknown);
// FIXME (<rdar://problem/9168605>) - We should support in-memory-only private browsing icons in asynchronous icon database mode.
if (iconDatabase().supportsAsynchronousMode() && m_frame->page()->settings()->privateBrowsingEnabled())
return;
if (iconLoadDecision == IconLoadNo) {
KURL iconURL(url());
String urlString(iconURL.string());
if (urlString.isEmpty())
return;
LOG(IconDatabase, "IconController::startLoader() - Told not to load this icon, committing iconURL %s to database for pageURL mapping", urlString.ascii().data());
commitToDatabase(iconURL);
if (iconDatabase().supportsAsynchronousMode()) {
m_frame->loader()->documentLoader()->getIconDataForIconURL(urlString);
return;
}
// We were told not to load this icon - that means this icon is already known by the database
// If the icon data hasn't been read in from disk yet, kick off the read of the icon from the database to make sure someone
// has done it. This is after registering for the notification so the WebView can call the appropriate delegate method.
// Otherwise if the icon data *is* available, notify the delegate
if (!iconDatabase().synchronousIconDataKnownForIconURL(urlString)) {
LOG(IconDatabase, "Told not to load icon %s but icon data is not yet available - registering for notification and requesting load from disk", urlString.ascii().data());
m_frame->loader()->client()->registerForIconNotification();
iconDatabase().synchronousIconForPageURL(m_frame->document()->url().string(), IntSize(0, 0));
iconDatabase().synchronousIconForPageURL(m_frame->loader()->initialRequest().url().string(), IntSize(0, 0));
} else
m_frame->loader()->client()->dispatchDidReceiveIcon();
return;
}
if (!m_iconLoader)
m_iconLoader = IconLoader::create(m_frame);
m_iconLoader->startLoading();
}
void NewJoinWidget::addInfo()
{
refresh();
int rowNum = sqlModel->rowCount(); // 获得表的行数
sqlModel->insertRow(rowNum); // 新插入行的位置就是表的行数，因为插入位置从 0 开始计算
ChangeInfoDialog changeInfoDialog(sqlModel, rowNum);
if (changeInfoDialog.exec() == QDialog::QDialog::Rejected) {
refresh();
return;
}
changeRowInfo(changeInfoDialog, rowNum);
commitToDatabase();
// 按照显示内容重新调整列宽度
view->resizeColumnsToContents();
}
void NewJoinWidget::delInfo()
{
refresh();
int flag = view->currentIndex().column();
if (flag == 0) {
QMessageBox::information(this, tr("删除操作失败"),
tr("没找到您选择了哪一行哎～～<p>请您前先选择带删除的行好吗？"));
return;
}
int choose = QMessageBox::question(this, tr("数据删除确认"),
tr("<H3>您确认要把当前选中行删除并提交到数据库吗？</H3>"
"<p><font color=red>* 注意此操作不可逆！</font>"),
QMessageBox::Yes | QMessageBox::No);
if (choose == QMessageBox::Yes) {
sqlModel->removeRow(view->currentIndex().row());
commitToDatabase();
}
}