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#include "renderer/render_view_observer_qt.h"

#include "common/qt_messages.h"

#include "components/web_cache/renderer/web_cache_impl.h"
#include "content/public/renderer/render_view.h"
#include "third_party/blink/public/web/web_document.h"
#include "third_party/blink/public/web/web_element.h"
#include "third_party/blink/public/web/web_frame.h"
#include "third_party/blink/public/web/web_frame_content_dumper.h"
#include "third_party/blink/public/web/web_frame_widget.h"
#include "third_party/blink/public/web/web_local_frame.h"
#include "third_party/blink/public/web/web_view.h"

RenderViewObserverQt::RenderViewObserverQt(
        content::RenderView* render_view,
        web_cache::WebCacheImpl* web_cache_impl)
    : content::RenderViewObserver(render_view)
    , m_web_cache_impl(web_cache_impl)
{
}

void RenderViewObserverQt::onFetchDocumentMarkup(quint64 requestId)
{
    blink::WebString markup;
    if (render_view()->GetWebView()->MainFrame()->IsWebLocalFrame())
        markup = blink::WebFrameContentDumper::DumpAsMarkup(
                    static_cast<blink::WebLocalFrame*>(render_view()->GetWebView()->MainFrame()));
    Send(new RenderViewObserverHostQt_DidFetchDocumentMarkup(routing_id(), requestId, markup.Utf16()));
}

void RenderViewObserverQt::onFetchDocumentInnerText(quint64 requestId)
{
    blink::WebString text;
    if (render_view()->GetWebView()->MainFrame()->IsWebLocalFrame())
        text = blink::WebFrameContentDumper::DumpWebViewAsText(
                    render_view()->GetWebView(),
                    std::numeric_limits<std::size_t>::max());
    Send(new RenderViewObserverHostQt_DidFetchDocumentInnerText(routing_id(), requestId, text.Utf16()));
}

void RenderViewObserverQt::onSetBackgroundColor(quint32 color)
{
    render_view()->GetWebView()->SetBaseBackgroundColor(color);
}

void RenderViewObserverQt::OnDestruct()
{
    delete this;
}

bool RenderViewObserverQt::OnMessageReceived(const IPC::Message& message)
{
    bool handled = true;
    IPC_BEGIN_MESSAGE_MAP(RenderViewObserverQt, message)
        IPC_MESSAGE_HANDLER(RenderViewObserverQt_FetchDocumentMarkup, onFetchDocumentMarkup)
        IPC_MESSAGE_HANDLER(RenderViewObserverQt_FetchDocumentInnerText, onFetchDocumentInnerText)
        IPC_MESSAGE_HANDLER(RenderViewObserverQt_SetBackgroundColor, onSetBackgroundColor)
        IPC_MESSAGE_UNHANDLED(handled = false)
    IPC_END_MESSAGE_MAP()
    return handled;
}

void RenderViewObserverQt::Navigate(const GURL &)
{
    if (m_web_cache_impl)
        m_web_cache_impl->ExecutePendingClearCache();
}
