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#include "javascript_dialog_manager_qt.h"

#include "javascript_dialog_controller.h"
#include "javascript_dialog_controller_p.h"
#include "web_contents_view_qt.h"
#include "type_conversion.h"

#include "base/memory/singleton.h"

namespace QtWebEngineCore {

Q_STATIC_ASSERT_X(static_cast<int>(content::JAVASCRIPT_MESSAGE_TYPE_PROMPT) == static_cast<int>(WebContentsAdapterClient::PromptDialog), "These enums should be in sync.");

JavaScriptDialogManagerQt *JavaScriptDialogManagerQt::GetInstance()
{
    return base::Singleton<JavaScriptDialogManagerQt>::get();
}

void JavaScriptDialogManagerQt::RunJavaScriptDialog(content::WebContents *webContents, const GURL &originUrl, const std::string &acceptLang, content::JavaScriptMessageType javascriptMessageType, const base::string16 &messageText, const base::string16 &defaultPromptText, const content::JavaScriptDialogManager::DialogClosedCallback &callback, bool *didSuppressMessage)
{
    Q_UNUSED(acceptLang);

    WebContentsAdapterClient *client = WebContentsViewQt::from(static_cast<content::WebContentsImpl*>(webContents)->GetView())->client();
    if (!client) {
        if (didSuppressMessage)
            *didSuppressMessage = true;
        return;
    }

    WebContentsAdapterClient::JavascriptDialogType dialogType = static_cast<WebContentsAdapterClient::JavascriptDialogType>(javascriptMessageType);
    runDialogForContents(webContents, dialogType, toQt(messageText).toHtmlEscaped(), toQt(defaultPromptText).toHtmlEscaped(), toQt(originUrl.GetOrigin()), callback);
}

void JavaScriptDialogManagerQt::RunBeforeUnloadDialog(content::WebContents *webContents, const base::string16 &messageText,
                                                    bool isReload, const content::JavaScriptDialogManager::DialogClosedCallback &callback) {
    Q_UNUSED(isReload);
    runDialogForContents(webContents, WebContentsAdapterClient::UnloadDialog, toQt(messageText).toHtmlEscaped(), QString() , QUrl(), callback);
}

bool JavaScriptDialogManagerQt::HandleJavaScriptDialog(content::WebContents *contents, bool accept, const base::string16 *promptOverride)
{
    QSharedPointer<JavaScriptDialogController> dialog = m_activeDialogs.value(contents);
    if (!dialog)
        return false;
    dialog->d->dialogFinished(accept, promptOverride ? *promptOverride : base::string16());
    takeDialogForContents(contents);
    return true;
}

void JavaScriptDialogManagerQt::runDialogForContents(content::WebContents *webContents, WebContentsAdapterClient::JavascriptDialogType type
                                                     , const QString &messageText, const QString &defaultPrompt, const QUrl &origin
                                                     , const content::JavaScriptDialogManager::DialogClosedCallback &callback, const QString &title)
{
    WebContentsAdapterClient *client = WebContentsViewQt::from(static_cast<content::WebContentsImpl*>(webContents)->GetView())->client();
    if (!client)
        return;

    JavaScriptDialogControllerPrivate *dialogData = new JavaScriptDialogControllerPrivate(type, messageText, defaultPrompt, title, origin, callback, webContents);
    QSharedPointer<JavaScriptDialogController> dialog(new JavaScriptDialogController(dialogData));

    // We shouldn't get new dialogs for a given WebContents until we gave back a result.
    Q_ASSERT(!m_activeDialogs.contains(webContents));
    m_activeDialogs.insert(webContents, dialog);

    client->javascriptDialog(dialog);

}

QSharedPointer<JavaScriptDialogController> JavaScriptDialogManagerQt::takeDialogForContents(content::WebContents *contents)
{
    QSharedPointer<JavaScriptDialogController> dialog = m_activeDialogs.take(contents);
    if (dialog)
        Q_EMIT dialog->dialogCloseRequested();
    return dialog;
}

} // namespace QtWebEngineCore
