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chromium / chromium / src / 4e30bcad88078b5b82743a51601aa6aa0ce40a8e / . / src / chrome / renderer / render_view.cc
blob: 9927171c8fc24f78c37b57bc59198483e6756d52 [file] [log] [blame]
// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/renderer/render_view.h"
#include <algorithm>
#include <string>
#include <vector>
#include "base/command_line.h"
#include "base/gfx/gdi_util.h"
#include "base/gfx/native_theme.h"
#include "base/gfx/png_encoder.h"
#include "base/string_piece.h"
#include "base/string_util.h"
#include "chrome/app/theme/theme_resources.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/gfx/emf.h"
#include "chrome/common/gfx/favicon_size.h"
#include "chrome/common/gfx/color_utils.h"
#include "chrome/common/jstemplate_builder.h"
#include "chrome/common/l10n_util.h"
#include "chrome/common/page_zoom.h"
#include "chrome/common/resource_bundle.h"
#include "chrome/common/thumbnail_score.h"
#include "chrome/common/chrome_plugin_lib.h"
#include "chrome/renderer/about_handler.h"
#include "chrome/renderer/chrome_plugin_host.h"
#include "chrome/renderer/debug_message_handler.h"
#include "chrome/renderer/localized_error.h"
#include "chrome/renderer/renderer_resources.h"
#include "chrome/renderer/user_script_slave.h"
#include "chrome/renderer/visitedlink_slave.h"
#include "chrome/renderer/webmediaplayer_delegate_impl.h"
#include "chrome/renderer/webplugin_delegate_proxy.h"
#include "chrome/views/message_box_view.h"
#include "net/base/escape.h"
#include "net/base/net_errors.h"
#include "skia/ext/bitmap_platform_device.h"
#include "skia/ext/image_operations.h"
#include "skia/ext/vector_canvas.h"
#include "webkit/default_plugin/default_plugin_shared.h"
#include "webkit/glue/dom_operations.h"
#include "webkit/glue/dom_serializer.h"
#include "webkit/glue/password_form.h"
#include "webkit/glue/plugins/plugin_list.h"
#include "webkit/glue/searchable_form_data.h"
#include "webkit/glue/webdatasource.h"
#include "webkit/glue/webdropdata.h"
#include "webkit/glue/weberror.h"
#include "webkit/glue/webframe.h"
#include "webkit/glue/webhistoryitem.h"
#include "webkit/glue/webinputevent.h"
#include "webkit/glue/webkit_glue.h"
#include "webkit/glue/webpreferences.h"
#include "webkit/glue/webresponse.h"
#include "webkit/glue/weburlrequest.h"
#include "webkit/glue/webview.h"
#include "webkit/glue/plugins/webplugin_delegate_impl.h"
//#include "webkit/port/platform/graphics/PlatformContextSkia.h"
#include "generated_resources.h"
using base::TimeDelta;
//-----------------------------------------------------------------------------
// define to write the time necessary for thumbnail/DOM text retrieval,
// respectively, into the system debug log
// #define TIME_BITMAP_RETRIEVAL
// #define TIME_TEXT_RETRIEVAL
// maximum number of characters in the document to index, any text beyond this
// point will be clipped
static const int kMaxIndexChars = 65535;
// Size of the thumbnails that we'll generate
static const int kThumbnailWidth = 196;
static const int kThumbnailHeight = 136;
// Delay in milliseconds that we'll wait before capturing the page contents
// and thumbnail.
static const int kDelayForCaptureMs = 500;
// Typically, we capture the page data once the page is loaded.
// Sometimes, the page never finishes to load, preventing the page capture
// To workaround this problem, we always perform a capture after the following
// delay.
static const int kDelayForForcedCaptureMs = 6000;
// The default value for RenderView.delay_seconds_for_form_state_sync_, see
// that variable for more.
const int kDefaultDelaySecondsForFormStateSync = 5;
// The next available page ID to use. This ensures that the page IDs are
// globally unique in the renderer.
static int32 next_page_id_ = 1;
// The maximum number of popups that can be spawned from one page.
static const int kMaximumNumberOfUnacknowledgedPopups = 25;
static const char* const kUnreachableWebDataURL =
"chrome://chromewebdata/";
static const char* const kBackForwardNavigationScheme = "history";
namespace {
// Associated with browser-initiated navigations to hold tracking data.
class RenderViewExtraRequestData : public WebRequest::ExtraData {
public:
RenderViewExtraRequestData(int32 pending_page_id,
PageTransition::Type transition,
const GURL& url)
: pending_page_id_(pending_page_id),
transition_type(transition),
request_committed(false) {
}
// Contains the page_id for this navigation or -1 if there is none yet.
int32 pending_page_id() const { return pending_page_id_; }
// Is this a new navigation?
bool is_new_navigation() const { return pending_page_id_ == -1; }
// Contains the transition type that the browser specified when it
// initiated the load.
PageTransition::Type transition_type;
// True if we have already processed the "DidCommitLoad" event for this
// request. Used by session history.
bool request_committed;
private:
int32 pending_page_id_;
DISALLOW_EVIL_CONSTRUCTORS(RenderViewExtraRequestData);
};
} // namespace
///////////////////////////////////////////////////////////////////////////////
RenderView::RenderView(RenderThreadBase* render_thread)
: RenderWidget(render_thread, true),
enable_dom_automation_(false),
enable_dom_ui_bindings_(false),
enable_external_host_bindings_(false),
target_url_status_(TARGET_NONE),
is_loading_(false),
navigation_gesture_(NavigationGestureUnknown),
page_id_(-1),
last_page_id_sent_to_browser_(-1),
last_indexed_page_id_(-1),
opened_by_user_gesture_(true),
method_factory_(this),
first_default_plugin_(NULL),
printed_document_width_(0),
history_back_list_count_(0),
history_forward_list_count_(0),
disable_popup_blocking_(false),
has_unload_listener_(false),
decrement_shared_popup_at_destruction_(false),
user_scripts_enabled_(false),
waiting_for_create_window_ack_(false),
form_field_autofill_request_id_(0),
popup_notification_visible_(false),
delay_seconds_for_form_state_sync_(kDefaultDelaySecondsForFormStateSync) {
resource_dispatcher_ = new ResourceDispatcher(this);
#ifdef CHROME_PERSONALIZATION
personalization_ = Personalization::CreateRendererPersonalization();
#endif
}
RenderView::~RenderView() {
if (decrement_shared_popup_at_destruction_)
shared_popup_counter_->data--;
resource_dispatcher_->ClearMessageSender();
// Clear any back-pointers that might still be held by plugins.
PluginDelegateList::iterator it = plugin_delegates_.begin();
while (it != plugin_delegates_.end()) {
(*it)->DropRenderView();
it = plugin_delegates_.erase(it);
}
render_thread_->RemoveFilter(debug_message_handler_);
#ifdef CHROME_PERSONALIZATION
Personalization::CleanupRendererPersonalization(personalization_);
personalization_ = NULL;
#endif
}
/*static*/
RenderView* RenderView::Create(
RenderThreadBase* render_thread,
HWND parent_hwnd,
base::WaitableEvent* modal_dialog_event,
int32 opener_id,
const WebPreferences& webkit_prefs,
SharedRenderViewCounter* counter,
int32 routing_id) {
DCHECK(routing_id != MSG_ROUTING_NONE);
scoped_refptr<RenderView> view = new RenderView(render_thread);
view->Init(parent_hwnd,
modal_dialog_event,
opener_id,
webkit_prefs,
counter,
routing_id); // adds reference
return view;
}
/*static*/
void RenderView::SetNextPageID(int32 next_page_id) {
// This method should only be called during process startup, and the given
// page id had better not exceed our current next page id!
DCHECK(next_page_id_ == 1);
DCHECK(next_page_id >= next_page_id_);
next_page_id_ = next_page_id;
}
void RenderView::PluginDestroyed(WebPluginDelegateProxy* proxy) {
PluginDelegateList::iterator it =
std::find(plugin_delegates_.begin(), plugin_delegates_.end(), proxy);
DCHECK(it != plugin_delegates_.end());
plugin_delegates_.erase(it);
// If the plugin is deleted, we need to clear our reference in case user
// clicks the info bar to install. Unfortunately we are getting
// PluginDestroyed in single process mode. However, that is not a huge
// concern.
if (proxy == first_default_plugin_)
first_default_plugin_ = NULL;
}
void RenderView::PluginCrashed(const FilePath& plugin_path) {
Send(new ViewHostMsg_CrashedPlugin(routing_id_, plugin_path));
}
void RenderView::JSOutOfMemory() {
Send(new ViewHostMsg_JSOutOfMemory(routing_id_));
}
void RenderView::Init(HWND parent_hwnd,
base::WaitableEvent* modal_dialog_event,
int32 opener_id,
const WebPreferences& webkit_prefs,
SharedRenderViewCounter* counter,
int32 routing_id) {
DCHECK(!webview());
if (opener_id != MSG_ROUTING_NONE)
opener_id_ = opener_id;
if (counter) {
shared_popup_counter_ = counter;
shared_popup_counter_->data++;
decrement_shared_popup_at_destruction_ = true;
} else {
shared_popup_counter_ = new SharedRenderViewCounter(0);
decrement_shared_popup_at_destruction_ = false;
}
// Avoid a leak here by not assigning, since WebView::Create addrefs for us.
WebWidget* view = WebView::Create(this, webkit_prefs);
webwidget_.swap(&view);
// Don't let WebCore keep a B/F list - we have our own.
// We let it keep 1 entry because FrameLoader::goToItem expects an item in the
// backForwardList, which is used only in ASSERTs.
webview()->SetBackForwardListSize(1);
routing_id_ = routing_id;
render_thread_->AddRoute(routing_id_, this);
// Take a reference on behalf of the RenderThread. This will be balanced
// when we receive ViewMsg_Close.
AddRef();
// If this is a popup, we must wait for the CreatingNew_ACK message before
// completing initialization. Otherwise, we can finish it now.
if (opener_id == MSG_ROUTING_NONE) {
did_show_ = true;
CompleteInit(parent_hwnd);
}
host_window_ = parent_hwnd;
modal_dialog_event_.reset(modal_dialog_event);
CommandLine command_line;
enable_dom_automation_ =
command_line.HasSwitch(switches::kDomAutomationController);
disable_popup_blocking_ =
command_line.HasSwitch(switches::kDisablePopupBlocking);
user_scripts_enabled_ =
command_line.HasSwitch(switches::kEnableUserScripts);
debug_message_handler_ = new DebugMessageHandler(this);
render_thread_->AddFilter(debug_message_handler_);
}
void RenderView::OnMessageReceived(const IPC::Message& message) {
// If the current RenderView instance represents a popup, then we
// need to wait for ViewMsg_CreatingNew_ACK to be sent by the browser.
// As part of this ack we also receive the browser window handle, which
// parents any plugins instantiated in this RenderView instance.
// Plugins can be instantiated only when we receive the parent window
// handle as they are child windows.
if (waiting_for_create_window_ack_ &&
resource_dispatcher_->IsResourceMessage(message)) {
queued_resource_messages_.push(new IPC::Message(message));
return;
}
// Let the resource dispatcher intercept resource messages first.
if (resource_dispatcher_->OnMessageReceived(message))
return;
IPC_BEGIN_MESSAGE_MAP(RenderView, message)
IPC_MESSAGE_HANDLER(ViewMsg_CreatingNew_ACK, OnCreatingNewAck)
IPC_MESSAGE_HANDLER(ViewMsg_CaptureThumbnail, SendThumbnail)
IPC_MESSAGE_HANDLER(ViewMsg_GetPrintedPagesCount, OnGetPrintedPagesCount)
IPC_MESSAGE_HANDLER(ViewMsg_PrintPages, OnPrintPages)
IPC_MESSAGE_HANDLER(ViewMsg_Navigate, OnNavigate)
IPC_MESSAGE_HANDLER(ViewMsg_Stop, OnStop)
IPC_MESSAGE_HANDLER(ViewMsg_LoadAlternateHTMLText, OnLoadAlternateHTMLText)
IPC_MESSAGE_HANDLER(ViewMsg_StopFinding, OnStopFinding)
IPC_MESSAGE_HANDLER(ViewMsg_Undo, OnUndo)
IPC_MESSAGE_HANDLER(ViewMsg_Redo, OnRedo)
IPC_MESSAGE_HANDLER(ViewMsg_Cut, OnCut)
IPC_MESSAGE_HANDLER(ViewMsg_Copy, OnCopy)
IPC_MESSAGE_HANDLER(ViewMsg_Paste, OnPaste)
IPC_MESSAGE_HANDLER(ViewMsg_Replace, OnReplace)
IPC_MESSAGE_HANDLER(ViewMsg_ToggleSpellCheck, OnToggleSpellCheck)
IPC_MESSAGE_HANDLER(ViewMsg_Delete, OnDelete)
IPC_MESSAGE_HANDLER(ViewMsg_SelectAll, OnSelectAll)
IPC_MESSAGE_HANDLER(ViewMsg_CopyImageAt, OnCopyImageAt)
IPC_MESSAGE_HANDLER(ViewMsg_Find, OnFind)
IPC_MESSAGE_HANDLER(ViewMsg_Zoom, OnZoom)
IPC_MESSAGE_HANDLER(ViewMsg_SetPageEncoding, OnSetPageEncoding)
IPC_MESSAGE_HANDLER(ViewMsg_InspectElement, OnInspectElement)
IPC_MESSAGE_HANDLER(ViewMsg_ShowJavaScriptConsole, OnShowJavaScriptConsole)
IPC_MESSAGE_HANDLER(ViewMsg_DownloadImage, OnDownloadImage)
IPC_MESSAGE_HANDLER(ViewMsg_ScriptEvalRequest, OnScriptEvalRequest)
IPC_MESSAGE_HANDLER(ViewMsg_AddMessageToConsole, OnAddMessageToConsole)
IPC_MESSAGE_HANDLER(ViewMsg_DebugAttach, OnDebugAttach)
IPC_MESSAGE_HANDLER(ViewMsg_DebugDetach, OnDebugDetach)
IPC_MESSAGE_HANDLER(ViewMsg_ReservePageIDRange, OnReservePageIDRange)
IPC_MESSAGE_HANDLER(ViewMsg_UploadFile, OnUploadFileRequest)
IPC_MESSAGE_HANDLER(ViewMsg_FormFill, OnFormFill)
IPC_MESSAGE_HANDLER(ViewMsg_FillPasswordForm, OnFillPasswordForm)
IPC_MESSAGE_HANDLER(ViewMsg_DragTargetDragEnter, OnDragTargetDragEnter)
IPC_MESSAGE_HANDLER(ViewMsg_DragTargetDragOver, OnDragTargetDragOver)
IPC_MESSAGE_HANDLER(ViewMsg_DragTargetDragLeave, OnDragTargetDragLeave)
IPC_MESSAGE_HANDLER(ViewMsg_DragTargetDrop, OnDragTargetDrop)
IPC_MESSAGE_HANDLER(ViewMsg_AllowDomAutomationBindings,
OnAllowDomAutomationBindings)
IPC_MESSAGE_HANDLER(ViewMsg_AllowBindings, OnAllowBindings)
IPC_MESSAGE_HANDLER(ViewMsg_SetDOMUIProperty, OnSetDOMUIProperty)
IPC_MESSAGE_HANDLER(ViewMsg_DragSourceEndedOrMoved,
OnDragSourceEndedOrMoved)
IPC_MESSAGE_HANDLER(ViewMsg_DragSourceSystemDragEnded,
OnDragSourceSystemDragEnded)
IPC_MESSAGE_HANDLER(ViewMsg_SetInitialFocus, OnSetInitialFocus)
IPC_MESSAGE_HANDLER(ViewMsg_FindReplyACK, OnFindReplyAck)
IPC_MESSAGE_HANDLER(ViewMsg_UpdateTargetURL_ACK, OnUpdateTargetURLAck)
IPC_MESSAGE_HANDLER(ViewMsg_UpdateWebPreferences, OnUpdateWebPreferences)
IPC_MESSAGE_HANDLER(ViewMsg_SetAltErrorPageURL, OnSetAltErrorPageURL)
IPC_MESSAGE_HANDLER(ViewMsg_InstallMissingPlugin, OnInstallMissingPlugin)
IPC_MESSAGE_HANDLER(ViewMsg_RunFileChooserResponse, OnFileChooserResponse)
IPC_MESSAGE_HANDLER(ViewMsg_EnableViewSourceMode, OnEnableViewSourceMode)
IPC_MESSAGE_HANDLER(ViewMsg_UpdateBackForwardListCount,
OnUpdateBackForwardListCount)
IPC_MESSAGE_HANDLER(ViewMsg_GetAllSavableResourceLinksForCurrentPage,
OnGetAllSavableResourceLinksForCurrentPage)
IPC_MESSAGE_HANDLER(ViewMsg_GetSerializedHtmlDataForCurrentPageWithLocalLinks,
OnGetSerializedHtmlDataForCurrentPageWithLocalLinks)
IPC_MESSAGE_HANDLER(ViewMsg_GetApplicationInfo, OnGetApplicationInfo)
IPC_MESSAGE_HANDLER(ViewMsg_GetAccessibilityInfo, OnGetAccessibilityInfo)
IPC_MESSAGE_HANDLER(ViewMsg_ClearAccessibilityInfo,
OnClearAccessibilityInfo)
IPC_MESSAGE_HANDLER(ViewMsg_ShouldClose, OnMsgShouldClose)
IPC_MESSAGE_HANDLER(ViewMsg_ClosePage, OnClosePage)
IPC_MESSAGE_HANDLER(ViewMsg_ThemeChanged, OnThemeChanged)
#ifdef CHROME_PERSONALIZATION
IPC_MESSAGE_HANDLER(ViewMsg_PersonalizationEvent, OnPersonalizationEvent)
#endif
IPC_MESSAGE_HANDLER(ViewMsg_HandleMessageFromExternalHost,
OnMessageFromExternalHost)
IPC_MESSAGE_HANDLER(ViewMsg_DisassociateFromPopupCount,
OnDisassociateFromPopupCount)
IPC_MESSAGE_HANDLER(ViewMsg_AutofillSuggestions,
OnReceivedAutofillSuggestions)
IPC_MESSAGE_HANDLER(ViewMsg_PopupNotificationVisiblityChanged,
OnPopupNotificationVisiblityChanged)
// Have the super handle all other messages.
IPC_MESSAGE_UNHANDLED(RenderWidget::OnMessageReceived(message))
IPC_END_MESSAGE_MAP()
}
// Got a response from the browser after the renderer decided to create a new
// view.
void RenderView::OnCreatingNewAck(HWND parent) {
CompleteInit(parent);
waiting_for_create_window_ack_ = false;
while (!queued_resource_messages_.empty()) {
IPC::Message* queued_msg = queued_resource_messages_.front();
queued_resource_messages_.pop();
resource_dispatcher_->OnMessageReceived(*queued_msg);
delete queued_msg;
}
}
void RenderView::SendThumbnail() {
WebFrame* main_frame = webview()->GetMainFrame();
if (!main_frame)
return;
// get the URL for this page
GURL url(main_frame->GetURL());
if (url.is_empty())
return;
if (size_.IsEmpty())
return; // Don't create an empty thumbnail!
ThumbnailScore score;
SkBitmap thumbnail;
if (!CaptureThumbnail(main_frame, kThumbnailWidth, kThumbnailHeight,
&thumbnail, &score))
return;
// send the thumbnail message to the browser process
IPC::Message* thumbnail_msg = new IPC::Message(routing_id_,
ViewHostMsg_Thumbnail::ID, IPC::Message::PRIORITY_NORMAL);
IPC::ParamTraits<GURL>::Write(thumbnail_msg, url);
IPC::ParamTraits<ThumbnailScore>::Write(thumbnail_msg, score);
IPC::ParamTraits<SkBitmap>::Write(thumbnail_msg, thumbnail);
Send(thumbnail_msg);
}
int RenderView::SwitchFrameToPrintMediaType(const ViewMsg_Print_Params& params,
WebFrame* frame) {
float ratio = static_cast<float>(params.desired_dpi / params.dpi);
float paper_width = params.printable_size.width() * ratio;
float paper_height = params.printable_size.height() * ratio;
float minLayoutWidth = static_cast<float>(paper_width * params.min_shrink);
float maxLayoutWidth = static_cast<float>(paper_width * params.max_shrink);
// Safari uses: 765 & 1224. Margins aren't exactly the same either.
// Scale = 2.222 for MDI printer.
int pages;
if (!frame->SetPrintingMode(true,
minLayoutWidth,
maxLayoutWidth,
&printed_document_width_)) {
NOTREACHED();
pages = 0;
} else {
DCHECK_GT(printed_document_width_, 0);
// Force to recalculate the height, otherwise it reuse the current window
// height as the default.
float effective_shrink = printed_document_width_ / paper_width;
gfx::Size page_size(printed_document_width_,
static_cast<int>(paper_height * effective_shrink) - 1);
WebView* view = frame->GetView();
if (view) {
// Hack around an issue where if the current view height is higher than
// the page height, empty pages will be printed even if the bottom of the
// web page is empty.
printing_view_size_ = view->GetSize();
view->Resize(page_size);
view->Layout();
}
pages = frame->ComputePageRects(params.printable_size);
DCHECK(pages);
}
return pages;
}
void RenderView::SwitchFrameToDisplayMediaType(WebFrame* frame) {
// Set the layout back to "normal" document; i.e. CSS media type = "screen".
frame->SetPrintingMode(false, 0, 0, NULL);
WebView* view = frame->GetView();
if (view) {
// Restore from the hack described at SwitchFrameToPrintMediaType().
view->Resize(printing_view_size_);
view->Layout();
printing_view_size_.SetSize(0, 0);
}
printed_document_width_ = 0;
}
void RenderView::OnPrintPage(const ViewMsg_PrintPage_Params& params) {
DCHECK(webview());
if (webview())
PrintPage(params, webview()->GetMainFrame());
}
void RenderView::PrintPage(const ViewMsg_PrintPage_Params& params,
WebFrame* frame) {
if (printed_document_width_ <= 0) {
NOTREACHED();
return;
}
// Generate a memory-based EMF file. The EMF will use the current screen's
// DPI.
gfx::Emf emf;
emf.CreateDc(NULL, NULL);
HDC hdc = emf.hdc();
DCHECK(hdc);
skia::PlatformDeviceWin::InitializeDC(hdc);
gfx::Rect rect;
frame->GetPageRect(params.page_number, &rect);
DCHECK(rect.height());
DCHECK(rect.width());
double shrink = static_cast<double>(printed_document_width_) /
params.params.printable_size.width();
// This check would fire each time the page would get truncated on the
// right. This is not worth a DCHECK() but should be looked into, for
// example, wouldn't be worth trying in landscape?
// DCHECK_LE(rect.width(), printed_document_width_);
// Buffer one page at a time.
int src_size_x = printed_document_width_;
int src_size_y =
static_cast<int>(ceil(params.params.printable_size.height() *
shrink));
#if 0
// TODO(maruel): This code is kept for testing until the 100% GDI drawing
// code is stable. maruels use this code's output as a reference when the
// GDI drawing code fails.
// Mix of Skia and GDI based.
skia::PlatformCanvasWin canvas(src_size_x, src_size_y, true);
canvas.drawARGB(255, 255, 255, 255, SkPorterDuff::kSrc_Mode);
PlatformContextSkia context(&canvas);
if (!frame->SpoolPage(params.page_number, &context)) {
NOTREACHED() << "Printing page " << params.page_number << " failed.";
return;
}
// Create a BMP v4 header that we can serialize.
BITMAPV4HEADER bitmap_header;
gfx::CreateBitmapV4Header(src_size_x, src_size_y, &bitmap_header);
const SkBitmap& src_bmp = canvas.getDevice()->accessBitmap(true);
SkAutoLockPixels src_lock(src_bmp);
int retval = StretchDIBits(hdc,
0,
0,
src_size_x, src_size_y,
0, 0,
src_size_x, src_size_y,
src_bmp.getPixels(),
reinterpret_cast<BITMAPINFO*>(&bitmap_header),
DIB_RGB_COLORS,
SRCCOPY);
DCHECK(retval != GDI_ERROR);
#else
// 100% GDI based.
skia::VectorCanvas canvas(hdc, src_size_x, src_size_y);
// Set the clipping region to be sure to not overflow.
SkRect clip_rect;
clip_rect.set(0, 0, SkIntToScalar(src_size_x), SkIntToScalar(src_size_y));
canvas.clipRect(clip_rect);
if (!frame->SpoolPage(params.page_number, &canvas)) {
NOTREACHED() << "Printing page " << params.page_number << " failed.";
return;
}
#endif
// Done printing. Close the device context to retrieve the compiled EMF.
if (!emf.CloseDc()) {
NOTREACHED() << "EMF failed";
}
// Get the size of the compiled EMF.
unsigned buf_size = emf.GetDataSize();
DCHECK(buf_size > 128);
ViewHostMsg_DidPrintPage_Params page_params;
page_params.data_size = 0;
page_params.emf_data_handle = NULL;
page_params.page_number = params.page_number;
page_params.document_cookie = params.params.document_cookie;
page_params.actual_shrink = shrink;
base::SharedMemory shared_buf;
// http://msdn2.microsoft.com/en-us/library/ms535522.aspx
// Windows 2000/XP: When a page in a spooled file exceeds approximately 350
// MB, it can fail to print and not send an error message.
if (buf_size < 350*1024*1024) {
// Allocate a shared memory buffer to hold the generated EMF data.
if (shared_buf.Create(L"", false, false, buf_size) &&
shared_buf.Map(buf_size)) {
// Copy the bits into shared memory.
if (emf.GetData(shared_buf.memory(), buf_size)) {
page_params.emf_data_handle = shared_buf.handle();
page_params.data_size = buf_size;
} else {
NOTREACHED() << "GetData() failed";
}
shared_buf.Unmap();
} else {
NOTREACHED() << "Buffer allocation failed";
}
} else {
NOTREACHED() << "Buffer too large: " << buf_size;
}
emf.CloseEmf();
if (Send(new ViewHostMsg_DuplicateSection(routing_id_,
page_params.emf_data_handle,
&page_params.emf_data_handle))) {
Send(new ViewHostMsg_DidPrintPage(routing_id_, page_params));
}
}
void RenderView::OnGetPrintedPagesCount(const ViewMsg_Print_Params& params) {
DCHECK(webview());
if (!webview()) {
Send(new ViewHostMsg_DidGetPrintedPagesCount(routing_id_,
params.document_cookie,
0));
return;
}
WebFrame* frame = webview()->GetMainFrame();
int expected_pages = SwitchFrameToPrintMediaType(params, frame);
Send(new ViewHostMsg_DidGetPrintedPagesCount(routing_id_,
params.document_cookie,
expected_pages));
SwitchFrameToDisplayMediaType(frame);
}
void RenderView::OnPrintPages(const ViewMsg_PrintPages_Params& params) {
DCHECK(webview());
if (webview())
PrintPages(params, webview()->GetMainFrame());
}
void RenderView::PrintPages(const ViewMsg_PrintPages_Params& params,
WebFrame* frame) {
int pages = SwitchFrameToPrintMediaType(params.params, frame);
Send(new ViewHostMsg_DidGetPrintedPagesCount(routing_id_,
params.params.document_cookie,
pages));
if (pages) {
ViewMsg_PrintPage_Params page_params;
page_params.params = params.params;
if (params.pages.empty()) {
for (int i = 0; i < pages; ++i) {
page_params.page_number = i;
PrintPage(page_params, frame);
}
} else {
for (size_t i = 0; i < params.pages.size(); ++i) {
page_params.page_number = params.pages[i];
PrintPage(page_params, frame);
}
}
}
SwitchFrameToDisplayMediaType(frame);
}
void RenderView::CapturePageInfo(int load_id, bool preliminary_capture) {
if (load_id != page_id_)
return; // this capture call is no longer relevant due to navigation
if (load_id == last_indexed_page_id_)
return; // we already indexed this page
if (!webview())
return;
WebFrame* main_frame = webview()->GetMainFrame();
if (!main_frame)
return;
// Don't index/capture pages that are in view source mode.
if (main_frame->GetInViewSourceMode())
return;
// Don't index/capture pages that failed to load. This only checks the top
// level frame so the thumbnail may contain a frame that failed to load.
WebDataSource* ds = main_frame->GetDataSource();
if (ds && ds->HasUnreachableURL())
return;
if (!preliminary_capture)
last_indexed_page_id_ = load_id;
// get the URL for this page
GURL url(main_frame->GetURL());
if (url.is_empty())
return;
// full text
std::wstring contents;
CaptureText(main_frame, &contents);
if (contents.size()) {
// Send the text to the browser for indexing.
Send(new ViewHostMsg_PageContents(url, load_id, contents));
}
// thumbnail
SendThumbnail();
}
void RenderView::CaptureText(WebFrame* frame, std::wstring* contents) {
contents->clear();
if (!frame)
return;
// Don't index any https pages. People generally don't want their bank
// accounts, etc. indexed on their computer, especially since some of these
// things are not marked cachable.
// TODO(brettw) we may want to consider more elaborate heuristics such as
// the cachability of the page. We may also want to consider subframes (this
// test will still index subframes if the subframe is SSL).
if (frame->GetURL().SchemeIsSecure())
return;
#ifdef TIME_TEXT_RETRIEVAL
double begin = time_util::GetHighResolutionTimeNow();
#endif
// get the contents of the frame
frame->GetContentAsPlainText(kMaxIndexChars, contents);
#ifdef TIME_TEXT_RETRIEVAL
double end = time_util::GetHighResolutionTimeNow();
char buf[128];
sprintf_s(buf, "%d chars retrieved for indexing in %gms\n",
contents.size(), (end - begin)*1000);
OutputDebugStringA(buf);
#endif
// When the contents are clipped to the maximum, we don't want to have a
// partial word indexed at the end that might have been clipped. Therefore,
// terminate the string at the last space to ensure no words are clipped.
if (contents->size() == kMaxIndexChars) {
size_t last_space_index = contents->find_last_of(kWhitespaceWide);
if (last_space_index == std::wstring::npos)
return; // don't index if we got a huge block of text with no spaces
contents->resize(last_space_index);
}
}
bool RenderView::CaptureThumbnail(WebFrame* frame,
int w,
int h,
SkBitmap* thumbnail,
ThumbnailScore* score) {
#ifdef TIME_BITMAP_RETRIEVAL
double begin = time_util::GetHighResolutionTimeNow();
#endif
scoped_ptr<skia::BitmapPlatformDevice> device;
if (!frame->CaptureImage(&device, true))
return false;
const SkBitmap& src_bmp = device->accessBitmap(false);
SkRect dest_rect;
dest_rect.set(0, 0, SkIntToScalar(w), SkIntToScalar(h));
float dest_aspect = dest_rect.width() / dest_rect.height();
// Get the src rect so that we can preserve the aspect ratio while filling
// the destination.
SkIRect src_rect;
if (src_bmp.width() < dest_rect.width() ||
src_bmp.height() < dest_rect.height()) {
// Source image is smaller: we clip the part of source image within the
// dest rect, and then stretch it to fill the dest rect. We don't respect
// the aspect ratio in this case.
src_rect.set(0, 0, static_cast<S16CPU>(dest_rect.width()),
static_cast<S16CPU>(dest_rect.height()));
score->good_clipping = false;
} else {
float src_aspect = static_cast<float>(src_bmp.width()) / src_bmp.height();
if (src_aspect > dest_aspect) {
// Wider than tall, clip horizontally: we center the smaller thumbnail in
// the wider screen.
S16CPU new_width = static_cast<S16CPU>(src_bmp.height() * dest_aspect);
S16CPU x_offset = (src_bmp.width() - new_width) / 2;
src_rect.set(x_offset, 0, new_width + x_offset, src_bmp.height());
score->good_clipping = false;
} else {
src_rect.set(0, 0, src_bmp.width(),
static_cast<S16CPU>(src_bmp.width() / dest_aspect));
score->good_clipping = true;
}
}
score->at_top = (frame->ScrollOffset().height() == 0);
SkBitmap subset;
device->accessBitmap(false).extractSubset(&subset, src_rect);
// Resample the subset that we want to get it the right size.
*thumbnail = skia::ImageOperations::Resize(
subset, skia::ImageOperations::RESIZE_LANCZOS3, w, h);
score->boring_score = CalculateBoringScore(thumbnail);
#ifdef TIME_BITMAP_RETRIEVAL
double end = time_util::GetHighResolutionTimeNow();
char buf[128];
sprintf_s(buf, "thumbnail in %gms\n", (end - begin) * 1000);
OutputDebugStringA(buf);
#endif
return true;
}
double RenderView::CalculateBoringScore(SkBitmap* bitmap) {
int histogram[256] = {0};
color_utils::BuildLumaHistogram(bitmap, histogram);
int color_count = *std::max_element(histogram, histogram + 256);
int pixel_count = bitmap->width() * bitmap->height();
return static_cast<double>(color_count) / pixel_count;
}
void RenderView::OnNavigate(const ViewMsg_Navigate_Params& params) {
if (!webview())
return;
AboutHandler::MaybeHandle(params.url);
bool is_reload = params.reload;
WebFrame* main_frame = webview()->GetMainFrame();
if (is_reload && !main_frame->HasCurrentHistoryState()) {
// We cannot reload if we do not have any history state. This happens, for
// example, when recovering from a crash. Our workaround here is a bit of
// a hack since it means that reload after a crashed tab does not cause an
// end-to-end cache validation.
is_reload = false;
}
WebRequestCachePolicy cache_policy;
if (is_reload) {
cache_policy = WebRequestReloadIgnoringCacheData;
} else if (params.page_id != -1 || main_frame->GetInViewSourceMode()) {
cache_policy = WebRequestReturnCacheDataElseLoad;
} else {
cache_policy = WebRequestUseProtocolCachePolicy;
}
scoped_ptr<WebRequest> request(WebRequest::Create(params.url));
request->SetCachePolicy(cache_policy);
request->SetExtraData(new RenderViewExtraRequestData(
params.page_id, params.transition, params.url));
// If we are reloading, then WebKit will use the state of the current page.
// Otherwise, we give it the state to navigate to.
if (!is_reload)
request->SetHistoryState(params.state);
if (params.referrer.is_valid()) {
request->SetHttpHeaderValue("Referer",
params.referrer.spec());
}
main_frame->LoadRequest(request.get());
}
// Stop loading the current page
void RenderView::OnStop() {
if (webview())
webview()->StopLoading();
}
void RenderView::OnLoadAlternateHTMLText(const std::string& html_contents,
bool new_navigation,
const GURL& display_url,
const std::string& security_info) {
if (!webview())
return;
scoped_ptr<WebRequest> request(WebRequest::Create(
GURL(kUnreachableWebDataURL)));
request->SetSecurityInfo(security_info);
webview()->GetMainFrame()->LoadAlternateHTMLString(request.get(),
html_contents,
display_url,
!new_navigation);
}
void RenderView::OnCopyImageAt(int x, int y) {
webview()->CopyImageAt(x, y);
}
void RenderView::OnInspectElement(int x, int y) {
webview()->InspectElement(x, y);
}
void RenderView::OnShowJavaScriptConsole() {
webview()->ShowJavaScriptConsole();
}
void RenderView::OnStopFinding(bool clear_selection) {
WebView* view = webview();
if (!view)
return;
if (clear_selection)
view->GetFocusedFrame()->ClearSelection();
WebFrame* frame = view->GetMainFrame();
while (frame) {
frame->StopFinding(clear_selection);
frame = view->GetNextFrameAfter(frame, false);
}
}
void RenderView::OnFindReplyAck() {
// Check if there is any queued up request waiting to be sent.
if (queued_find_reply_message_.get()) {
// Send the search result over to the browser process.
Send(queued_find_reply_message_.get());
queued_find_reply_message_.release();
}
}
void RenderView::OnUpdateTargetURLAck() {
// Check if there is a targeturl waiting to be sent.
if (target_url_status_ == TARGET_PENDING) {
Send(new ViewHostMsg_UpdateTargetURL(routing_id_, page_id_,
pending_target_url_));
}
target_url_status_ = TARGET_NONE;
}
void RenderView::OnUndo() {
if (!webview())
return;
webview()->GetFocusedFrame()->Undo();
}
void RenderView::OnRedo() {
if (!webview())
return;
webview()->GetFocusedFrame()->Redo();
}
void RenderView::OnCut() {
if (!webview())
return;
webview()->GetFocusedFrame()->Cut();
}
void RenderView::OnCopy() {
if (!webview())
return;
webview()->GetFocusedFrame()->Copy();
}
void RenderView::OnPaste() {
if (!webview())
return;
webview()->GetFocusedFrame()->Paste();
}
void RenderView::OnReplace(const std::wstring& text) {
if (!webview())
return;
webview()->GetFocusedFrame()->Replace(text);
}
void RenderView::OnToggleSpellCheck() {
if (!webview())
return;
webview()->GetFocusedFrame()->ToggleSpellCheck();
}
void RenderView::OnDelete() {
if (!webview())
return;
webview()->GetFocusedFrame()->Delete();
}
void RenderView::OnSelectAll() {
if (!webview())
return;
webview()->GetFocusedFrame()->SelectAll();
}
void RenderView::OnSetInitialFocus(bool reverse) {
if (!webview())
return;
webview()->SetInitialFocus(reverse);
}
///////////////////////////////////////////////////////////////////////////////
// Tell the embedding application that the URL of the active page has changed
void RenderView::UpdateURL(WebFrame* frame) {
WebDataSource* ds = frame->GetDataSource();
DCHECK(ds);
const WebRequest& request = ds->GetRequest();
const WebRequest& initial_request = ds->GetInitialRequest();
const WebResponse& response = ds->GetResponse();
// We don't hold a reference to the extra data. The request's reference will
// be sufficient because we won't modify it during our call. MAY BE NULL.
RenderViewExtraRequestData* extra_data =
static_cast<RenderViewExtraRequestData*>(request.GetExtraData());
ViewHostMsg_FrameNavigate_Params params;
params.is_post = false;
params.page_id = page_id_;
params.is_content_filtered = response.IsContentFiltered();
if (!request.GetSecurityInfo().empty()) {
// SSL state specified in the request takes precedence over the one in the
// response.
// So far this is only intended for error pages that are not expected to be
// over ssl, so we should not get any clash.
DCHECK(response.GetSecurityInfo().empty());
params.security_info = request.GetSecurityInfo();
} else {
params.security_info = response.GetSecurityInfo();
}
// Set the URL to be displayed in the browser UI to the user.
if (ds->HasUnreachableURL()) {
params.url = ds->GetUnreachableURL();
} else {
params.url = request.GetURL();
}
params.redirects = ds->GetRedirectChain();
params.should_update_history = !ds->HasUnreachableURL();
const SearchableFormData* searchable_form_data =
frame->GetDataSource()->GetSearchableFormData();
if (searchable_form_data) {
params.searchable_form_url = searchable_form_data->url();
params.searchable_form_element_name = searchable_form_data->element_name();
params.searchable_form_encoding = searchable_form_data->encoding();
}
const PasswordForm* password_form_data =
frame->GetDataSource()->GetPasswordFormData();
if (password_form_data)
params.password_form = *password_form_data;
params.gesture = navigation_gesture_;
navigation_gesture_ = NavigationGestureUnknown;
if (webview()->GetMainFrame() == frame) {
// Top-level navigation.
// Update contents MIME type for main frame.
std::wstring mime_type = ds->GetResponseMimeType();
params.contents_mime_type = WideToASCII(mime_type);
// We assume top level navigations initiated by the renderer are link
// clicks.
params.transition = extra_data ?
extra_data->transition_type : PageTransition::LINK;
if (!PageTransition::IsMainFrame(params.transition)) {
// If the main frame does a load, it should not be reported as a subframe
// navigation. This can occur in the following case:
// 1. You're on a site with frames.
// 2. You do a subframe navigation. This is stored with transition type
// MANUAL_SUBFRAME.
// 3. You navigate to some non-frame site, say, google.com.
// 4. You navigate back to the page from step 2. Since it was initially
// MANUAL_SUBFRAME, it will be that same transition type here.
// We don't want that, because any navigation that changes the toplevel
// frame should be tracked as a toplevel navigation (this allows us to
// update the URL bar, etc).
params.transition = PageTransition::LINK;
}
if (params.transition == PageTransition::LINK &&
frame->GetDataSource()->IsFormSubmit()) {
params.transition = PageTransition::FORM_SUBMIT;
}
// If we have a valid consumed client redirect source,
// the page contained a client redirect (meta refresh, document.loc...),
// so we set the referrer and transition to match.
if (completed_client_redirect_src_.is_valid()) {
DCHECK(completed_client_redirect_src_ == params.redirects[0]);
params.referrer = completed_client_redirect_src_;
params.transition = static_cast<PageTransition::Type>(
params.transition | PageTransition::CLIENT_REDIRECT);
} else {
// Bug 654101: the referrer will be empty on https->http transitions. It
// would be nice if we could get the real referrer from somewhere.
params.referrer = GURL(initial_request.GetHttpReferrer());
}
std::string method = request.GetHttpMethod();
if (method == "POST")
params.is_post = true;
Send(new ViewHostMsg_FrameNavigate(routing_id_, params));
} else {
// Subframe navigation: the type depends on whether this navigation
// generated a new session history entry. When they do generate a session
// history entry, it means the user initiated the navigation and we should
// mark it as such. This test checks if this is the first time UpdateURL
// has been called since WillNavigateToURL was called to initiate the load.
if (page_id_ > last_page_id_sent_to_browser_)
params.transition = PageTransition::MANUAL_SUBFRAME;
else
params.transition = PageTransition::AUTO_SUBFRAME;
// The browser should never initiate a subframe navigation.
DCHECK(!extra_data);
Send(new ViewHostMsg_FrameNavigate(routing_id_, params));
}
last_page_id_sent_to_browser_ =
std::max(last_page_id_sent_to_browser_, page_id_);
// If we end up reusing this WebRequest (for example, due to a #ref click),
// we don't want the transition type to persist.
if (extra_data)
extra_data->transition_type = PageTransition::LINK; // Just clear it.
if (glue_accessibility_.get()) {
// Clear accessibility info cache.
glue_accessibility_->ClearIAccessibleMap(-1, true);
}
}
// Tell the embedding application that the title of the active page has changed
void RenderView::UpdateTitle(WebFrame* frame, const std::wstring& title) {
// Ignore all but top level navigations...
if (webview()->GetMainFrame() == frame)
Send(new ViewHostMsg_UpdateTitle(routing_id_, page_id_, title));
}
void RenderView::UpdateEncoding(WebFrame* frame,
const std::wstring& encoding_name) {
// Only update main frame's encoding_name.
if (webview()->GetMainFrame() == frame &&
last_encoding_name_ != encoding_name) {
// Save the encoding name for later comparing.
last_encoding_name_ = encoding_name;
Send(new ViewHostMsg_UpdateEncoding(routing_id_, last_encoding_name_));
}
}
// Sends the previous session history state to the browser so it will be saved
// before we navigate to a new page. This must be called *before* the page ID
// has been updated so we know what it was.
void RenderView::UpdateSessionHistory(WebFrame* frame) {
// If we have a valid page ID at this point, then it corresponds to the page
// we are navigating away from. Otherwise, this is the first navigation, so
// there is no past session history to record.
if (page_id_ == -1)
return;
std::string state;
if (!webview()->GetMainFrame()->GetPreviousHistoryState(&state))
return;
Send(new ViewHostMsg_UpdateState(routing_id_, page_id_, state));
}
///////////////////////////////////////////////////////////////////////////////
// WebViewDelegate
void RenderView::DidStartLoading(WebView* webview) {
if (is_loading_) {
DLOG(WARNING) << "DidStartLoading called while loading";
return;
}
is_loading_ = true;
// Clear the pointer so that we can assign it only when there is an unknown
// plugin on a page.
first_default_plugin_ = NULL;
Send(new ViewHostMsg_DidStartLoading(routing_id_, page_id_));
}
void RenderView::DidStopLoading(WebView* webview) {
if (!is_loading_) {
DLOG(WARNING) << "DidStopLoading called while not loading";
return;
}
is_loading_ = false;
// NOTE: For now we're doing the safest thing, and sending out notification
// when done loading. This currently isn't an issue as the favicon is only
// displayed when done loading. Ideally we would send notification when
// finished parsing the head, but webkit doesn't support that yet.
// The feed discovery code would also benefit from access to the head.
GURL favicon_url(webview->GetMainFrame()->GetFavIconURL());
if (!favicon_url.is_empty())
Send(new ViewHostMsg_UpdateFavIconURL(routing_id_, page_id_, favicon_url));
AddGURLSearchProvider(webview->GetMainFrame()->GetOSDDURL(),
true); // autodetected
Send(new ViewHostMsg_DidStopLoading(routing_id_, page_id_));
MessageLoop::current()->PostDelayedTask(FROM_HERE,
method_factory_.NewRunnableMethod(&RenderView::CapturePageInfo, page_id_,
false),
kDelayForCaptureMs);
// The page is loaded. Try to process the file we need to upload if any.
ProcessPendingUpload();
// Since the page is done loading, we are sure we don't need to try
// again.
ResetPendingUpload();
}
void RenderView::DidStartProvisionalLoadForFrame(
WebView* webview,
WebFrame* frame,
NavigationGesture gesture) {
if (webview->GetMainFrame() == frame) {
navigation_gesture_ = gesture;
// Make sure redirect tracking state is clear for the new load.
completed_client_redirect_src_ = GURL();
}
Send(new ViewHostMsg_DidStartProvisionalLoadForFrame(
routing_id_, webview->GetMainFrame() == frame,
frame->GetProvisionalDataSource()->GetRequest().GetURL()));
}
bool RenderView::DidLoadResourceFromMemoryCache(WebView* webview,
const WebRequest& request,
const WebResponse& response,
WebFrame* frame) {
// Let the browser know we loaded a resource from the memory cache. This
// message is needed to display the correct SSL indicators.
Send(new ViewHostMsg_DidLoadResourceFromMemoryCache(routing_id_,
request.GetURL(), response.GetSecurityInfo()));
return false;
}
void RenderView::DidReceiveProvisionalLoadServerRedirect(WebView* webview,
WebFrame* frame) {
if (frame == webview->GetMainFrame()) {
// Received a redirect on the main frame.
WebDataSource* data_source =
webview->GetMainFrame()->GetProvisionalDataSource();
if (!data_source) {
// Should only be invoked when we have a data source.
NOTREACHED();
return;
}
const std::vector<GURL>& redirects = data_source->GetRedirectChain();
if (redirects.size() >= 2) {
Send(new ViewHostMsg_DidRedirectProvisionalLoad(
routing_id_, page_id_, redirects[redirects.size() - 2],
redirects[redirects.size() - 1]));
}
}
}
void RenderView::DidFailProvisionalLoadWithError(WebView* webview,
const WebError& error,
WebFrame* frame) {
// Notify the browser that we failed a provisional load with an error.
//
// Note: It is important this notification occur before DidStopLoading so the
// SSL manager can react to the provisional load failure before being
// notified the load stopped.
//
WebDataSource* ds = frame->GetProvisionalDataSource();
DCHECK(ds);
const WebRequest& failed_request = ds->GetRequest();
bool show_repost_interstitial =
(error.GetErrorCode() == net::ERR_CACHE_MISS &&
LowerCaseEqualsASCII(failed_request.GetHttpMethod(), "post"));
Send(new ViewHostMsg_DidFailProvisionalLoadWithError(
routing_id_, frame == webview->GetMainFrame(),
error.GetErrorCode(), error.GetFailedURL(),
show_repost_interstitial));
// Don't display an error page if this is simply a cancelled load. Aside
// from being dumb, WebCore doesn't expect it and it will cause a crash.
if (error.GetErrorCode() == net::ERR_ABORTED)
return;
// If this is a failed back/forward/reload navigation, then we need to do a
// 'replace' load. This is necessary to avoid messing up session history.
// Otherwise, we do a normal load, which simulates a 'go' navigation as far
// as session history is concerned.
RenderViewExtraRequestData* extra_data =
static_cast<RenderViewExtraRequestData*>(failed_request.GetExtraData());
bool replace = extra_data && !extra_data->is_new_navigation();
// Use the alternate error page service if this is a DNS failure or
// connection failure. ERR_CONNECTION_FAILED can be dropped once we no longer
// use winhttp.
int ec = error.GetErrorCode();
if (ec == net::ERR_NAME_NOT_RESOLVED ||
ec == net::ERR_CONNECTION_FAILED ||
ec == net::ERR_CONNECTION_REFUSED ||
ec == net::ERR_ADDRESS_UNREACHABLE ||
ec == net::ERR_TIMED_OUT) {
const GURL& failed_url = error.GetFailedURL();
const GURL& error_page_url = GetAlternateErrorPageURL(failed_url,
ec == net::ERR_NAME_NOT_RESOLVED ? WebViewDelegate::DNS_ERROR
: WebViewDelegate::CONNECTION_ERROR);
if (error_page_url.is_valid()) {
// Ask the WebFrame to fetch the alternate error page for us.
frame->LoadAlternateHTMLErrorPage(&failed_request, error, error_page_url,
replace, GURL(kUnreachableWebDataURL));
return;
}
}
// Fallback to a local error page.
LoadNavigationErrorPage(frame, &failed_request, error, std::string(),
replace);
}
void RenderView::LoadNavigationErrorPage(WebFrame* frame,
const WebRequest* failed_request,
const WebError& error,
const std::string& html,
bool replace) {
const GURL& failed_url = error.GetFailedURL();
std::string alt_html;
if (html.empty()) {
// Use a local error page.
int resource_id;
DictionaryValue error_strings;
if (error.GetErrorCode() == net::ERR_CACHE_MISS &&
LowerCaseEqualsASCII(failed_request->GetHttpMethod(), "post")) {
GetFormRepostErrorValues(failed_url, &error_strings);
resource_id = IDR_ERROR_NO_DETAILS_HTML;
} else {
GetLocalizedErrorValues(error, &error_strings);
resource_id = IDR_NET_ERROR_HTML;
}
error_strings.SetString(L"textdirection",
(l10n_util::GetTextDirection() == l10n_util::RIGHT_TO_LEFT) ?
L"rtl" : L"ltr");
alt_html = GetAltHTMLForTemplate(error_strings, resource_id);
} else {
alt_html = html;
}
// Use a data: URL as the site URL to prevent against XSS attacks.
scoped_ptr<WebRequest> request(failed_request->Clone());
request->SetURL(GURL(kUnreachableWebDataURL));
frame->LoadAlternateHTMLString(request.get(), alt_html, failed_url,
replace);
}
void RenderView::DidCommitLoadForFrame(WebView *webview, WebFrame* frame,
bool is_new_navigation) {
const WebRequest& request =
webview->GetMainFrame()->GetDataSource()->GetRequest();
RenderViewExtraRequestData* extra_data =
static_cast<RenderViewExtraRequestData*>(request.GetExtraData());
if (is_new_navigation) {
// When we perform a new navigation, we need to update the previous session
// history entry with state for the page we are leaving.
UpdateSessionHistory(frame);
// We bump our Page ID to correspond with the new session history entry.
page_id_ = next_page_id_++;
MessageLoop::current()->PostDelayedTask(FROM_HERE,
method_factory_.NewRunnableMethod(&RenderView::CapturePageInfo,
page_id_, true),
kDelayForForcedCaptureMs);
} else {
// Inspect the extra_data on the main frame (set in our Navigate method) to
// see if the navigation corresponds to a session history navigation...
// Note: |frame| may or may not be the toplevel frame, but for the case
// of capturing session history, the first committed frame suffices. We
// keep track of whether we've seen this commit before so that only capture
// session history once per navigation.
//
// Note that we need to check if the page ID changed. In the case of a
// reload, the page ID doesn't change, and UpdateSessionHistory gets the
// previous URL and the current page ID, which would be wrong.
if (extra_data && !extra_data->is_new_navigation() &&
!extra_data->request_committed &&
page_id_ != extra_data->pending_page_id()) {
// This is a successful session history navigation!
UpdateSessionHistory(frame);
page_id_ = extra_data->pending_page_id();
}
}
// Remember that we've already processed this request, so we don't update
// the session history again. We do this regardless of whether this is
// a session history navigation, because if we attempted a session history
// navigation without valid HistoryItem state, WebCore will think it is a
// new navigation.
if (extra_data)
extra_data->request_committed = true;
UpdateURL(frame);
// If this committed load was initiated by a client redirect, we're
// at the last stop now, so clear it.
completed_client_redirect_src_ = GURL();
// Check whether we have new encoding name.
UpdateEncoding(frame, webview->GetMainFrameEncodingName());
}
void RenderView::DidReceiveTitle(WebView* webview,
const std::wstring& title,
WebFrame* frame) {
UpdateTitle(frame, title);
// Also check whether we have new encoding name.
UpdateEncoding(frame, webview->GetMainFrameEncodingName());
}
void RenderView::DidFinishLoadForFrame(WebView* webview, WebFrame* frame) {
}
void RenderView::DidFailLoadWithError(WebView* webview,
const WebError& error,
WebFrame* frame) {
}
void RenderView::DidFinishDocumentLoadForFrame(WebView* webview,
WebFrame* frame) {
// Check whether we have new encoding name.
UpdateEncoding(frame, webview->GetMainFrameEncodingName());
// Inject any user scripts. Do not inject into chrome UI pages, but do inject
// into any other document.
if (user_scripts_enabled_) {
const GURL &gurl = frame->GetURL();
if (g_render_thread && // Will be NULL when testing.
(gurl.SchemeIs("file") ||
gurl.SchemeIs("http") ||
gurl.SchemeIs("https"))) {
g_render_thread->user_script_slave()->InjectScripts(frame);
}
}
}
void RenderView::DidHandleOnloadEventsForFrame(WebView* webview,
WebFrame* frame) {
}
void RenderView::DidChangeLocationWithinPageForFrame(WebView* webview,
WebFrame* frame,
bool is_new_navigation) {
DidCommitLoadForFrame(webview, frame, is_new_navigation);
const std::wstring& title =
webview->GetMainFrame()->GetDataSource()->GetPageTitle();
UpdateTitle(frame, title);
}
void RenderView::DidReceiveIconForFrame(WebView* webview,
WebFrame* frame) {
}
void RenderView::WillPerformClientRedirect(WebView* webview,
WebFrame* frame,
const GURL& src_url,
const GURL& dest_url,
unsigned int delay_seconds,
unsigned int fire_date) {
}
void RenderView::DidCancelClientRedirect(WebView* webview,
WebFrame* frame) {
}
void RenderView::DidCompleteClientRedirect(WebView* webview,
WebFrame* frame,
const GURL& source) {
if (webview->GetMainFrame() == frame)
completed_client_redirect_src_ = source;
}
void RenderView::BindDOMAutomationController(WebFrame* webframe) {
dom_automation_controller_.set_message_sender(this);
dom_automation_controller_.set_routing_id(routing_id_);
dom_automation_controller_.BindToJavascript(webframe,
L"domAutomationController");
}
void RenderView::WindowObjectCleared(WebFrame* webframe) {
external_js_object_.set_render_view(this);
external_js_object_.BindToJavascript(webframe, L"external");
if (enable_dom_automation_)
BindDOMAutomationController(webframe);
if (enable_dom_ui_bindings_) {
dom_ui_bindings_.set_message_sender(this);
dom_ui_bindings_.set_routing_id(routing_id_);
dom_ui_bindings_.BindToJavascript(webframe, L"chrome");
}
if (enable_external_host_bindings_) {
external_host_bindings_.set_message_sender(this);
external_host_bindings_.set_routing_id(routing_id_);
external_host_bindings_.BindToJavascript(webframe, L"externalHost");
}
#ifdef CHROME_PERSONALIZATION
Personalization::ConfigureRendererPersonalization(personalization_, this,
routing_id_, webframe);
#endif
}
WindowOpenDisposition RenderView::DispositionForNavigationAction(
WebView* webview,
WebFrame* frame,
const WebRequest* request,
WebNavigationType type,
WindowOpenDisposition disposition,
bool is_redirect) {
// Webkit is asking whether to navigate to a new URL.
// This is fine normally, except if we're showing UI from one security
// context and they're trying to navigate to a different context.
const GURL& url = request->GetURL();
// We only care about navigations that are within the current tab (as opposed
// to, for example, opening a new window).
// But we sometimes navigate to about:blank to clear a tab, and we want to
// still allow that.
if (disposition == CURRENT_TAB && !(url.SchemeIs("about"))) {
// GetExtraData is NULL when we did not issue the request ourselves (see
// OnNavigate), and so such a request may correspond to a link-click,
// script, or drag-n-drop initiated navigation.
if (frame == webview->GetMainFrame() && !request->GetExtraData()) {
// When we received such unsolicited navigations, we sometimes want to
// punt them up to the browser to handle.
if (enable_dom_ui_bindings_ ||
frame->GetInViewSourceMode() ||
url.SchemeIs("view-source")) {
OpenURL(webview, url, GURL(), disposition);
return IGNORE_ACTION; // Suppress the load here.
} else if (url.SchemeIs(kBackForwardNavigationScheme)) {
std::string offset_str = url.ExtractFileName();
int offset;
if (StringToInt(offset_str, &offset)) {
GoToEntryAtOffset(offset);
return IGNORE_ACTION; // The browser process handles this one.
}
}
}
}
// Detect when a page is "forking" a new tab that can be safely rendered in
// its own process. This is done by sites like Gmail that try to open links
// in new windows without script connections back to the original page. We
// treat such cases as browser navigations (in which we will create a new
// renderer for a cross-site navigation), rather than WebKit navigations.
//
// We use the following heuristic to decide whether to fork a new page in its
// own process:
// The parent page must open a new tab to about:blank, set the new tab's
// window.opener to null, and then redirect the tab to a cross-site URL using
// JavaScript.
bool is_fork =
// Must start from a tab showing about:blank, which is later redirected.
frame->GetURL() == GURL("about:blank") &&
// Must be the first real navigation of the tab.
GetHistoryBackListCount() < 1 &&
GetHistoryForwardListCount() < 1 &&
// The parent page must have set the child's window.opener to null before
// redirecting to the desired URL.
frame->GetOpener() == NULL &&
// Must be a top-level frame.
frame->GetParent() == NULL &&
// Must not have issued the request from this page. GetExtraData is NULL
// when the navigation is being done by something outside the page.
!request->GetExtraData() &&
// Must be targeted at the current tab.
disposition == CURRENT_TAB &&
// Must be a JavaScript navigation, which appears as "other".
type == WebNavigationTypeOther;
if (is_fork) {
// Open the URL via the browser, not via WebKit.
OpenURL(webview, url, GURL(), disposition);
return IGNORE_ACTION;
}
return disposition;
}
void RenderView::RunJavaScriptAlert(WebView* webview,
const std::wstring& message) {
RunJavaScriptMessage(MessageBoxView::kIsJavascriptAlert,
message,
std::wstring(),
NULL);
}
bool RenderView::RunJavaScriptConfirm(WebView* webview,
const std::wstring& message) {
return RunJavaScriptMessage(MessageBoxView::kIsJavascriptConfirm,
message,
std::wstring(),
NULL);
}
bool RenderView::RunJavaScriptPrompt(WebView* webview,
const std::wstring& message,
const std::wstring& default_value,
std::wstring* result) {
return RunJavaScriptMessage(MessageBoxView::kIsJavascriptPrompt,
message,
default_value,
result);
}
bool RenderView::RunJavaScriptMessage(int type,
const std::wstring& message,
const std::wstring& default_value,
std::wstring* result) {
bool success = false;
std::wstring result_temp;
if (!result)
result = &result_temp;
IPC::SyncMessage* msg = new ViewHostMsg_RunJavaScriptMessage(
routing_id_, message, default_value, type, &success, result);
msg->set_pump_messages_event(modal_dialog_event_.get());
Send(msg);
return success;
}
void RenderView::AddGURLSearchProvider(const GURL& osd_url, bool autodetected) {
if (!osd_url.is_empty())
Send(new ViewHostMsg_PageHasOSDD(routing_id_, page_id_, osd_url,
autodetected));
}
bool RenderView::RunBeforeUnloadConfirm(WebView* webview,
const std::wstring& message) {
bool success = false;
// This is an ignored return value, but is included so we can accept the same
// response as RunJavaScriptMessage.
std::wstring ignored_result;
IPC::SyncMessage* msg = new ViewHostMsg_RunBeforeUnloadConfirm(
routing_id_, message, &success, &ignored_result);
msg->set_pump_messages_event(modal_dialog_event_.get());
Send(msg);
return success;
}
void RenderView::EnableSuddenTermination() {
Send(new ViewHostMsg_UnloadListenerChanged(routing_id_, false));
}
void RenderView::DisableSuddenTermination() {
Send(new ViewHostMsg_UnloadListenerChanged(routing_id_, true));
}
void RenderView::QueryFormFieldAutofill(const std::wstring& field_name,
const std::wstring& text,
int64 node_id) {
static int message_id_counter = 0;
form_field_autofill_request_id_ = message_id_counter++;
Send(new ViewHostMsg_QueryFormFieldAutofill(routing_id_,
field_name, text,
node_id,
form_field_autofill_request_id_));
}
void RenderView::OnReceivedAutofillSuggestions(
int64 node_id,
int request_id,
const std::vector<std::wstring>& suggestions,
int default_suggestion_index) {
if (!webview() || request_id != form_field_autofill_request_id_)
return;
webview()->AutofillSuggestionsForNode(node_id, suggestions,
default_suggestion_index);
}
void RenderView::OnPopupNotificationVisiblityChanged(bool visible) {
popup_notification_visible_ = visible;
}
void RenderView::ShowModalHTMLDialog(const GURL& url, int width, int height,
const std::string& json_arguments,
std::string* json_retval) {
IPC::SyncMessage* msg = new ViewHostMsg_ShowModalHTMLDialog(
routing_id_, url, width, height, json_arguments, json_retval);
msg->set_pump_messages_event(modal_dialog_event_.get());
Send(msg);
}
uint32 RenderView::GetCPBrowsingContext() {
uint32 context = 0;
Send(new ViewHostMsg_GetCPBrowsingContext(&context));
return context;
}
// Tell the browser to display a destination link.
void RenderView::UpdateTargetURL(WebView* webview, const GURL& url) {
if (url != target_url_) {
if (target_url_status_ == TARGET_INFLIGHT ||
target_url_status_ == TARGET_PENDING) {
// If we have a request in-flight, save the URL to be sent when we
// receive an ACK to the in-flight request. We can happily overwrite
// any existing pending sends.
pending_target_url_ = url;
target_url_status_ = TARGET_PENDING;
} else {
Send(new ViewHostMsg_UpdateTargetURL(routing_id_, page_id_, url));
target_url_ = url;
target_url_status_ = TARGET_INFLIGHT;
}
}
}
void RenderView::RunFileChooser(bool multi_select,
const std::wstring& title,
const std::wstring& default_filename,
const std::wstring& filter,
WebFileChooserCallback* file_chooser) {
if (file_chooser_.get()) {
// TODO(brettw): bug 1235154: This should be a synchronous message to deal
// with the fact that web pages can programatically trigger this. With the
// asnychronous messages, we can get an additional call when one is pending,
// which this test is for. For now, we just ignore the additional file
// chooser request. WebKit doesn't do anything to expect the callback, so
// we can just ignore calling it.
delete file_chooser;
return;
}
file_chooser_.reset(file_chooser);
Send(new ViewHostMsg_RunFileChooser(routing_id_, multi_select, title,
default_filename, filter));
}
void RenderView::AddMessageToConsole(WebView* webview,
const std::wstring& message,
unsigned int line_no,
const std::wstring& source_id) {
Send(new ViewHostMsg_AddMessageToConsole(routing_id_, message,
static_cast<int32>(line_no),
source_id));
}
void RenderView::AddSearchProvider(const std::string& url) {
AddGURLSearchProvider(GURL(url),
false); // not autodetected
}
void RenderView::DebuggerOutput(const std::wstring& out) {
Send(new ViewHostMsg_DebuggerOutput(routing_id_, out));
}
WebView* RenderView::CreateWebView(WebView* webview, bool user_gesture) {
// Check to make sure we aren't overloading on popups.
if (shared_popup_counter_->data > kMaximumNumberOfUnacknowledgedPopups)
return NULL;
// This window can't be closed from a window.close() call until we receive a
// message from the Browser process explicitly allowing it.
popup_notification_visible_ = true;
int32 routing_id = MSG_ROUTING_NONE;
HANDLE modal_dialog_event = NULL;
bool result = render_thread_->Send(
new ViewHostMsg_CreateWindow(routing_id_, user_gesture, &routing_id,
&modal_dialog_event));
if (routing_id == MSG_ROUTING_NONE) {
DCHECK(modal_dialog_event == NULL);
return NULL;
}
// The WebView holds a reference to this new RenderView
const WebPreferences& prefs = webview->GetPreferences();
base::WaitableEvent* waitable_event =
new base::WaitableEvent(modal_dialog_event);
RenderView* view = RenderView::Create(render_thread_,
NULL, waitable_event, routing_id_,
prefs, shared_popup_counter_,
routing_id);
view->set_opened_by_user_gesture(user_gesture);
view->set_waiting_for_create_window_ack(true);
// Copy over the alternate error page URL so we can have alt error pages in
// the new render view (we don't need the browser to send the URL back down).
view->alternate_error_page_url_ = alternate_error_page_url_;
return view->webview();
}
WebWidget* RenderView::CreatePopupWidget(WebView* webview,
bool activatable) {
RenderWidget* widget = RenderWidget::Create(routing_id_,
render_thread_,
activatable);
return widget->webwidget();
}
static bool ShouldLoadPluginInProcess(const std::string& mime_type,
bool* is_gears) {
if (RenderProcess::ShouldLoadPluginsInProcess())
return true;
if (mime_type == "application/x-googlegears") {
*is_gears = true;
CommandLine cmd;
return cmd.HasSwitch(switches::kGearsInRenderer);
}
return false;
}
WebPluginDelegate* RenderView::CreatePluginDelegate(
WebView* webview,
const GURL& url,
const std::string& mime_type,
const std::string& clsid,
std::string* actual_mime_type) {
bool is_gears = false;
if (ShouldLoadPluginInProcess(mime_type, &is_gears)) {
FilePath path;
render_thread_->Send(
new ViewHostMsg_GetPluginPath(url, mime_type, clsid, &path,
actual_mime_type));
if (path.value().empty())
return NULL;
std::string mime_type_to_use;
if (actual_mime_type && !actual_mime_type->empty())
mime_type_to_use = *actual_mime_type;
else
mime_type_to_use = mime_type;
if (is_gears)
ChromePluginLib::Create(path, GetCPBrowserFuncsForRenderer());
return WebPluginDelegateImpl::Create(path,
mime_type_to_use, host_window_);
}
WebPluginDelegateProxy* proxy =
WebPluginDelegateProxy::Create(url, mime_type, clsid, this);
if (!proxy)
return NULL;
// We hold onto the proxy so we can poke it when we are painting. See our
// DidPaint implementation below.
plugin_delegates_.push_back(proxy);
return proxy;
}
webkit_glue::WebMediaPlayerDelegate* RenderView::CreateMediaPlayerDelegate() {
return new WebMediaPlayerDelegateImpl();
}
void RenderView::OnMissingPluginStatus(WebPluginDelegate* delegate,
int status) {
if (first_default_plugin_ == NULL) {
// Show the InfoBar for the first available plugin.
if (status == default_plugin::MISSING_PLUGIN_AVAILABLE) {
first_default_plugin_ = delegate;
Send(new ViewHostMsg_MissingPluginStatus(routing_id_, status));
}
} else {
// Closes the InfoBar if user clicks on the plugin (instead of the InfoBar)
// to start the download/install.
if (status == default_plugin::MISSING_PLUGIN_USER_STARTED_DOWNLOAD) {
Send(new ViewHostMsg_MissingPluginStatus(routing_id_, status));
}
}
}
void RenderView::OpenURL(WebView* webview, const GURL& url,
const GURL& referrer,
WindowOpenDisposition disposition) {
Send(new ViewHostMsg_OpenURL(routing_id_, url, referrer, disposition));
}
// We are supposed to get a single call to Show for a newly created RenderView
// that was created via RenderView::CreateWebView. So, we wait until this
// point to dispatch the ShowView message.
//
// This method provides us with the information about how to display the newly
// created RenderView (i.e., as a constrained popup or as a new tab).
//
void RenderView::Show(WebWidget* webwidget, WindowOpenDisposition disposition) {
DCHECK(!did_show_) << "received extraneous Show call";
DCHECK(opener_id_ != MSG_ROUTING_NONE);
if (did_show_)
return;
did_show_ = true;
// NOTE: initial_pos_ may still have its default values at this point, but
// that's okay. It'll be ignored if disposition is not NEW_POPUP, or the
// browser process will impose a default position otherwise.
Send(new ViewHostMsg_ShowView(
opener_id_, routing_id_, disposition, initial_pos_,
WasOpenedByUserGestureHelper()));
}
void RenderView::CloseWidgetSoon(WebWidget* webwidget) {
if (popup_notification_visible_ == false)
RenderWidget::CloseWidgetSoon(webwidget);
}
void RenderView::RunModal(WebWidget* webwidget) {
DCHECK(did_show_) << "should already have shown the view";
IPC::SyncMessage* msg = new ViewHostMsg_RunModal(routing_id_);
msg->set_pump_messages_event(modal_dialog_event_.get());
Send(msg);
}
void RenderView::SyncNavigationState() {
if (!webview())
return;
std::string state;
if (!webview()->GetMainFrame()->GetCurrentHistoryState(&state))
return;
Send(new ViewHostMsg_UpdateState(routing_id_, page_id_, state));
}
void RenderView::ShowContextMenu(WebView* webview,
ContextNode::Type type,
int x,
int y,
const GURL& link_url,
const GURL& image_url,
const GURL& page_url,
const GURL& frame_url,
const std::wstring& selection_text,
const std::wstring& misspelled_word,
int edit_flags,
const std::string& security_info) {
ViewHostMsg_ContextMenu_Params params;
params.type = type;
params.x = x;
params.y = y;
params.image_url = image_url;
params.link_url = link_url;
params.page_url = page_url;
params.frame_url = frame_url;
params.selection_text = selection_text;
params.misspelled_word = misspelled_word;
params.spellcheck_enabled =
webview->GetFocusedFrame()->SpellCheckEnabled();
params.edit_flags = edit_flags;
params.security_info = security_info;
Send(new ViewHostMsg_ContextMenu(routing_id_, params));
}
void RenderView::StartDragging(WebView* webview, const WebDropData& drop_data) {
Send(new ViewHostMsg_StartDragging(routing_id_, drop_data));
}
void RenderView::TakeFocus(WebView* webview, bool reverse) {
Send(new ViewHostMsg_TakeFocus(routing_id_, reverse));
}
void RenderView::DidDownloadImage(int id,
const GURL& image_url,
bool errored,
const SkBitmap& image) {
Send(new ViewHostMsg_DidDownloadImage(routing_id_, id, image_url, errored,
image));
}
void RenderView::OnDownloadImage(int id,
const GURL& image_url,
int image_size) {
if (!webview()->DownloadImage(id, image_url, image_size))
Send(new ViewHostMsg_DidDownloadImage(routing_id_, id, image_url, true,
SkBitmap()));
}
void RenderView::OnGetApplicationInfo(int page_id) {
webkit_glue::WebApplicationInfo app_info;
if (page_id == page_id_)
webkit_glue::GetApplicationInfo(webview(), &app_info);
// Prune out any data URLs in the set of icons. The browser process expects
// any icon with a data URL to have originated from a favicon. We don't want
// to decode arbitrary data URLs in the browser process. See
// http://b/issue?id=1162972
for (size_t i = 0; i < app_info.icons.size(); ++i) {
if (app_info.icons[i].url.SchemeIs("data")) {
app_info.icons.erase(app_info.icons.begin() + i);
--i;
}
}
Send(new ViewHostMsg_DidGetApplicationInfo(routing_id_, page_id, app_info));
}
GURL RenderView::GetAlternateErrorPageURL(const GURL& failedURL,
ErrorPageType error_type) {
if (failedURL.SchemeIsSecure()) {
// If the URL that failed was secure, then the embedding web page was not
// expecting a network attacker to be able to manipulate its contents. As
// we fetch alternate error pages over HTTP, we would be allowing a network
// attacker to manipulate the contents of the response if we tried to use
// the link doctor here.
return GURL::EmptyGURL();
}
// Grab the base URL from the browser process.
if (!alternate_error_page_url_.is_valid())
return GURL::EmptyGURL();
// Strip query params from the failed URL.
GURL::Replacements remove_params;
remove_params.ClearUsername();
remove_params.ClearPassword();
remove_params.ClearQuery();
remove_params.ClearRef();
const GURL url_to_send = failedURL.ReplaceComponents(remove_params);
// Construct the query params to send to link doctor.
std::string params(alternate_error_page_url_.query());
params.append("&url=");
params.append(EscapeQueryParamValue(url_to_send.spec()));
params.append("&sourceid=chrome");
params.append("&error=");
switch (error_type) {
case DNS_ERROR:
params.append("dnserror");
break;
case HTTP_404:
params.append("http404");
break;
case CONNECTION_ERROR:
params.append("connectionerror");
break;
default:
NOTREACHED() << "unknown ErrorPageType";
}
// OK, build the final url to return.
GURL::Replacements link_doctor_params;
link_doctor_params.SetQueryStr(params);
GURL url = alternate_error_page_url_.ReplaceComponents(link_doctor_params);
return url;
}
void RenderView::OnFind(const FindInPageRequest& request) {
WebFrame* main_frame = webview()->GetMainFrame();
WebFrame* frame_after_main = webview()->GetNextFrameAfter(main_frame, true);
WebFrame* focused_frame = webview()->GetFocusedFrame();
WebFrame* search_frame = focused_frame; // start searching focused frame.
bool multi_frame = (frame_after_main != main_frame);
// If we have multiple frames, we don't want to wrap the search within the
// frame, so we check here if we only have main_frame in the chain.
bool wrap_within_frame = !multi_frame;
gfx::Rect selection_rect;
bool result = false;
do {
result = search_frame->Find(request, wrap_within_frame, &selection_rect);
if (!result) {
// don't leave text selected as you move to the next frame.
search_frame->ClearSelection();
// Find the next frame, but skip the invisible ones.
do {
// What is the next frame to search? (we might be going backwards). Note
// that we specify wrap=true so that search_frame never becomes NULL.
search_frame = request.forward ?
webview()->GetNextFrameAfter(search_frame, true) :
webview()->GetPreviousFrameBefore(search_frame, true);
} while (!search_frame->Visible() && search_frame != focused_frame);
// Make sure selection doesn't affect the search operation in new frame.
search_frame->ClearSelection();
// If we have multiple frames and we have wrapped back around to the
// focused frame, we need to search it once more allowing wrap within
// the frame, otherwise it will report 'no match' if the focused frame has
// reported matches, but no frames after the focused_frame contain a
// match for the search word(s).
if (multi_frame && search_frame == focused_frame) {
result = search_frame->Find(request, true, // Force wrapping.
&selection_rect);
}
}
// TODO(jcampan): http://b/issue?id=1157486 Remove StoreForFocus call once
// we have the fix for 792423.
search_frame->GetView()->StoreFocusForFrame(search_frame);
webview()->SetFocusedFrame(search_frame);
} while (!result && search_frame != focused_frame);
// Make sure we don't leave any frame focused or the focus won't be restored
// properly in WebViewImpl::SetFocus(). Note that we are talking here about
// focused on the SelectionController, not FocusController.
// webview()->GetFocusedFrame() will still return the last focused frame (as
// it queries the FocusController).
// TODO(jcampan): http://b/issue?id=1157486 Remove next line once we have the
// fix for 792423.
webview()->SetFocusedFrame(NULL);
// We send back word that we found some matches, because we don't want to lag
// when notifying the user that we found something. At this point we only know
// that we found 1 match, but the scoping effort will tell us more. However,
// if this is a FindNext request, the scoping effort is already under way, or
// done already, so we have partial results. In that case we set it to -1 so
// that it gets ignored by the FindInPageController.
int match_count = result ? 1 : 0; // 1 here means possibly more coming.
if (request.find_next)
match_count = -1;
// If we find no matches (or if this is Find Next) then this will be our last
// status update. Otherwise the scoping effort will send more results.
bool final_status_update = !result || request.find_next;
// Send the search result over to the browser process.
Send(new ViewHostMsg_Find_Reply(routing_id_, request.request_id,
match_count,
selection_rect,
-1, // Don't update active match ordinal.
final_status_update));
if (!request.find_next) {
// Scoping effort begins, starting with the mainframe.
search_frame = main_frame;
main_frame->ResetMatchCount();
do {
// Cancel all old scoping requests before starting a new one.
search_frame->CancelPendingScopingEffort();
// We don't start another scoping effort unless at least one match has
// been found.
if (result) {
// Start new scoping request. If the scoping function determines that it
// needs to scope, it will defer until later.
search_frame->ScopeStringMatches(request,
true); // reset the tickmarks
}
// Iterate to the next frame. The frame will not necessarily scope, for
// example if it is not visible.
search_frame = webview()->GetNextFrameAfter(search_frame, true);
} while (search_frame != main_frame);
}
}
void RenderView::ReportFindInPageMatchCount(int count, int request_id,
bool final_update) {
// If we have a message that has been queued up, then we should just replace
// it. The ACK from the browser will make sure it gets sent when the browser
// wants it.
if (queued_find_reply_message_.get()) {
IPC::Message* msg = new ViewHostMsg_Find_Reply(
routing_id_,
request_id,
count,
gfx::Rect(0, 0, 0, 0),
-1, // Don't update active match ordinal.
final_update);
queued_find_reply_message_.reset(msg);
} else {
// Send the search result over to the browser process.
Send(new ViewHostMsg_Find_Reply(
routing_id_,
request_id,
count,
gfx::Rect(0, 0, 0, 0),
-1, // // Don't update active match ordinal.
final_update));
}
}
void RenderView::ReportFindInPageSelection(int request_id,
int active_match_ordinal,
const gfx::Rect& selection_rect) {
// Send the search result over to the browser process.
Send(new ViewHostMsg_Find_Reply(routing_id_,
request_id,
-1,
selection_rect,
active_match_ordinal,
false));
}
bool RenderView::WasOpenedByUserGesture(WebView* webview) const {
return WasOpenedByUserGestureHelper();
}
bool RenderView::WasOpenedByUserGestureHelper() const {
// If pop-up blocking has been disabled, then treat all new windows as if
// they were opened by a user gesture. This will prevent them from being
// blocked. This is a bit of a hack, there should be a more straightforward
// way to disable pop-up blocking.
if (disable_popup_blocking_)
return true;
return opened_by_user_gesture_;
}
void RenderView::SpellCheck(const std::wstring& word, int& misspell_location,
int& misspell_length) {
Send(new ViewHostMsg_SpellCheck(routing_id_, word, &misspell_location,
&misspell_length));
}
void RenderView::SetInputMethodState(bool enabled) {
// Save the updated IME status and mark the input focus has been updated.
// The IME status is to be sent to a browser process next time when
// the input caret is rendered.
if (!ime_control_busy_) {
ime_control_updated_ = true;
ime_control_new_state_ = enabled;
}
}
void RenderView::ScriptedPrint(WebFrame* frame) {
// Retrieve the default print settings to calculate the expected number of
// pages.
ViewMsg_Print_Params default_settings;
IPC::SyncMessage* msg =
new ViewHostMsg_GetDefaultPrintSettings(routing_id_, &default_settings);
if (Send(msg)) {
msg = NULL;
// Continue only if the settings are valid.
if (default_settings.dpi && default_settings.document_cookie) {
int expected_pages_count = SwitchFrameToPrintMediaType(default_settings,
frame);
DCHECK(expected_pages_count);
SwitchFrameToDisplayMediaType(frame);
// Ask the browser to show UI to retrieve the final print settings.
ViewMsg_PrintPages_Params print_settings;
// host_window_ may be NULL at this point if the current window is a popup
// and the print() command has been issued from the parent. The receiver
// of this message has to deal with this.
msg = new ViewHostMsg_ScriptedPrint(routing_id_,
host_window_,
default_settings.document_cookie,
expected_pages_count,
&print_settings);
if (Send(msg)) {
msg = NULL;
// If the settings are invalid, early quit.
if (print_settings.params.dpi &&
print_settings.params.document_cookie) {
// Render the printed pages. It will implicitly revert the document to
// display CSS media type.
PrintPages(print_settings, frame);
// All went well.
return;
} else {
// The user cancelled.
}
} else {
// Send() failed.
NOTREACHED();
}
} else {
// The user cancelled.
}
} else {
// Send() failed.
NOTREACHED();
}
// TODO(maruel): bug 1123882 Alert the user that printing failed.
}
void RenderView::WebInspectorOpened(int num_resources) {
Send(new ViewHostMsg_InspectElement_Reply(routing_id_, num_resources));
}
void RenderView::UserMetricsRecordAction(const std::wstring& action) {
Send(new ViewHostMsg_UserMetricsRecordAction(routing_id_, action));
}
void RenderView::DnsPrefetch(const std::vector<std::string>& host_names) {
Send(new ViewHostMsg_DnsPrefetch(host_names));
}
void RenderView::OnZoom(int function) {
static const bool kZoomIsTextOnly = false;
switch (function) {
case PageZoom::SMALLER:
webview()->ZoomOut(kZoomIsTextOnly);
break;
case PageZoom::STANDARD:
webview()->ResetZoom();
break;
case PageZoom::LARGER:
webview()->ZoomIn(kZoomIsTextOnly);
break;
default:
NOTREACHED();
}
}
void RenderView::OnSetPageEncoding(const std::wstring& encoding_name) {
webview()->SetPageEncoding(encoding_name);
}
void RenderView::OnPasswordFormsSeen(WebView* webview,
const std::vector<PasswordForm>& forms) {
Send(new ViewHostMsg_PasswordFormsSeen(routing_id_, forms));
}
void RenderView::OnAutofillFormSubmitted(WebView* webview,
const AutofillForm& form) {
Send(new ViewHostMsg_AutofillFormSubmitted(routing_id_, form));
}
WebHistoryItem* RenderView::GetHistoryEntryAtOffset(int offset) {
// Our history list is kept in the browser process on the UI thread. Since
// we can't make a sync IPC call to that thread without risking deadlock,
// we use a trick: construct a fake history item of the form:
// history://go/OFFSET
// When WebCore tells us to navigate to it, we tell the browser process to
// do a back/forward navigation instead.
GURL url(StringPrintf("%s://go/%d", kBackForwardNavigationScheme, offset));
history_navigation_item_ = WebHistoryItem::Create(url, L"", "", NULL);
return history_navigation_item_.get();
}
void RenderView::GoToEntryAtOffset(int offset) {
history_back_list_count_ += offset;
history_forward_list_count_ -= offset;
Send(new ViewHostMsg_GoToEntryAtOffset(routing_id_, offset));
}
int RenderView::GetHistoryBackListCount() {
return history_back_list_count_;
}
int RenderView::GetHistoryForwardListCount() {
return history_forward_list_count_;
}
void RenderView::OnNavStateChanged(WebView* webview) {
if (!nav_state_sync_timer_.IsRunning()) {
nav_state_sync_timer_.Start(
TimeDelta::FromSeconds(delay_seconds_for_form_state_sync_), this,
&RenderView::SyncNavigationState);
}
}
void RenderView::SetTooltipText(WebView* webview,
const std::wstring& tooltip_text) {
Send(new ViewHostMsg_SetTooltipText(routing_id_, tooltip_text));
}
void RenderView::DownloadUrl(const GURL& url, const GURL& referrer) {
Send(new ViewHostMsg_DownloadUrl(routing_id_, url, referrer));
}
WebFrame* RenderView::GetChildFrame(const std::wstring& frame_xpath) const {
WebFrame* web_frame;
if (frame_xpath.empty()) {
web_frame = webview()->GetMainFrame();
} else {
web_frame = webview()->GetMainFrame()->GetChildFrame(frame_xpath);
}
return web_frame;
}
void RenderView::EvaluateScript(const std::wstring& frame_xpath,
const std::wstring& script) {
WebFrame* web_frame = GetChildFrame(frame_xpath);
if (!web_frame)
return;
web_frame->ExecuteJavaScript(WideToUTF8(script),
GURL(), // script url
1); // base line number
}
void RenderView::OnScriptEvalRequest(const std::wstring& frame_xpath,
const std::wstring& jscript) {
EvaluateScript(frame_xpath, jscript);
}
void RenderView::OnAddMessageToConsole(const std::wstring& frame_xpath,
const std::wstring& msg,
ConsoleMessageLevel level) {
WebFrame* web_frame = GetChildFrame(frame_xpath);
if (!web_frame)
return;
web_frame->AddMessageToConsole(msg, level);
}
void RenderView::OnDebugAttach() {
Send(new ViewHostMsg_DidDebugAttach(routing_id_));
// Tell the plugin host to stop accepting messages in order to avoid
// hangs while the renderer is paused.
// TODO(1243929): It might be an improvement to add more plumbing to do this
// when the renderer is actually paused vs. just the debugger being attached.
PluginChannelHost::SetListening(false);
}
void RenderView::OnDebugDetach() {
// Tell the plugin host to start accepting plugin messages again.
PluginChannelHost::SetListening(true);
}
void RenderView::OnAllowDomAutomationBindings(bool allow_bindings) {
enable_dom_automation_ = allow_bindings;
}
void RenderView::OnAllowBindings(bool enable_dom_ui_bindings,
bool enable_external_host_bindings) {
enable_dom_ui_bindings_ = enable_dom_ui_bindings;
enable_external_host_bindings_ = enable_external_host_bindings;
}
void RenderView::OnSetDOMUIProperty(const std::string& name,
const std::string& value) {
DCHECK(enable_dom_ui_bindings_);
dom_ui_bindings_.SetProperty(name, value);
}
void RenderView::OnReservePageIDRange(int size_of_range) {
next_page_id_ += size_of_range + 1;
}
void RenderView::OnDragSourceEndedOrMoved(int client_x,
int client_y,
int screen_x,
int screen_y,
bool ended) {
if (ended)
webview()->DragSourceEndedAt(client_x, client_y, screen_x, screen_y);
else
webview()->DragSourceMovedTo(client_x, client_y, screen_x, screen_y);
}
void RenderView::OnDragSourceSystemDragEnded() {
webview()->DragSourceSystemDragEnded();
}
void RenderView::OnUploadFileRequest(const ViewMsg_UploadFile_Params& p) {
webkit_glue::FileUploadData* f = new webkit_glue::FileUploadData;
f->file_path = p.file_path;
f->form_name = p.form;
f->file_name = p.file;
f->submit_name = p.submit;
// Build the other form values map.
if (!p.other_values.empty()) {
std::vector<std::wstring> e;
std::vector<std::wstring> kvp;
std::vector<std::wstring>::iterator i;
SplitString(p.other_values, L'\n', &e);
for (i = e.begin(); i != e.end(); ++i) {
SplitString(*i, L'=', &kvp);
if (kvp.size() == 2)
f->other_form_values[kvp[0]] = kvp[1];
kvp.clear();
}
}
pending_upload_data_.reset(f);
ProcessPendingUpload();
}
void RenderView::ProcessPendingUpload() {
webkit_glue::FileUploadData* f = pending_upload_data_.get();
if (f && webview() && webkit_glue::FillFormToUploadFile(webview(), *f))
ResetPendingUpload();
}
void RenderView::ResetPendingUpload() {
pending_upload_data_.reset();
}
void RenderView::OnFormFill(const FormData& form) {
webkit_glue::FillForm(this->webview(), form);
}
void RenderView::OnFillPasswordForm(
const PasswordFormDomManager::FillData& form_data) {
webkit_glue::FillPasswordForm(this->webview(), form_data);
}
void RenderView::OnDragTargetDragEnter(const WebDropData& drop_data,
const gfx::Point& client_pt, const gfx::Point& screen_pt) {
bool is_drop_target = webview()->DragTargetDragEnter(drop_data,
client_pt.x(), client_pt.y(), screen_pt.x(), screen_pt.y());
Send(new ViewHostMsg_UpdateDragCursor(routing_id_, is_drop_target));
}
void RenderView::OnDragTargetDragOver(const gfx::Point& client_pt,
const gfx::Point& screen_pt) {
bool is_drop_target = webview()->DragTargetDragOver(client_pt.x(),
client_pt.y(), screen_pt.x(), screen_pt.y());
Send(new ViewHostMsg_UpdateDragCursor(routing_id_, is_drop_target));
}
void RenderView::OnDragTargetDragLeave() {
webview()->DragTargetDragLeave();
}
void RenderView::OnDragTargetDrop(const gfx::Point& client_pt,
const gfx::Point& screen_pt) {
webview()->DragTargetDrop(client_pt.x(), client_pt.y(), screen_pt.x(),
screen_pt.y());
}
void RenderView::OnUpdateWebPreferences(const WebPreferences& prefs) {
webview()->SetPreferences(prefs);
}
void RenderView::OnSetAltErrorPageURL(const GURL& url) {
alternate_error_page_url_ = url;
}
void RenderView::DidPaint() {
PluginDelegateList::iterator it = plugin_delegates_.begin();
while (it != plugin_delegates_.end()) {
(*it)->FlushGeometryUpdates();
++it;
}
}
void RenderView::OnInstallMissingPlugin() {
// This could happen when the first default plugin is deleted.
if (first_default_plugin_ == NULL)
return;
first_default_plugin_->InstallMissingPlugin();
}
void RenderView::OnFileChooserResponse(
const std::vector<std::wstring>& file_names) {
file_chooser_->OnFileChoose(file_names);
file_chooser_.reset();
}
void RenderView::OnEnableViewSourceMode() {
if (!webview())
return;
WebFrame* main_frame = webview()->GetMainFrame();
if (!main_frame)
return;
main_frame->SetInViewSourceMode(true);
}
void RenderView::OnUpdateBackForwardListCount(int back_list_count,
int forward_list_count) {
history_back_list_count_ = back_list_count;
history_forward_list_count_ = forward_list_count;
}
void RenderView::OnGetAccessibilityInfo(
const ViewMsg_Accessibility_In_Params& in_params,
ViewHostMsg_Accessibility_Out_Params* out_params) {
if (!glue_accessibility_.get())
glue_accessibility_.reset(new GlueAccessibility());
if (!glue_accessibility_->
GetAccessibilityInfo(webview(), in_params, out_params)) {
return;
}
}
void RenderView::OnClearAccessibilityInfo(int iaccessible_id, bool clear_all) {
if (!glue_accessibility_.get()) {
// If accessibility is not activated, ignore clearing message.
return;
}
if (!glue_accessibility_->ClearIAccessibleMap(iaccessible_id, clear_all))
return;
}
void RenderView::OnGetAllSavableResourceLinksForCurrentPage(
const GURL& page_url) {
// Prepare list to storage all savable resource links.
std::vector<GURL> resources_list;
std::vector<GURL> referrers_list;
std::vector<GURL> frames_list;
webkit_glue::SavableResourcesResult result(&resources_list,
&referrers_list,
&frames_list);
if (!webkit_glue::GetAllSavableResourceLinksForCurrentPage(webview(),
page_url,
&result)) {
// If something is wrong when collecting all savable resource links,
// send empty list to embedder(browser) to tell it failed.
referrers_list.clear();
resources_list.clear();
frames_list.clear();
}
// Send result of all savable resource links to embedder.
Send(new ViewHostMsg_SendCurrentPageAllSavableResourceLinks(routing_id_,
resources_list,
referrers_list,
frames_list));
}
void RenderView::OnGetSerializedHtmlDataForCurrentPageWithLocalLinks(
const std::vector<std::wstring>& links,
const std::vector<std::wstring>& local_paths,
const std::wstring& local_directory_name) {
webkit_glue::DomSerializer dom_serializer(webview()->GetMainFrame(),
true,
this,
links,
local_paths,
local_directory_name);
dom_serializer.SerializeDom();
}
void RenderView::DidSerializeDataForFrame(const GURL& frame_url,
const std::string& data, PageSavingSerializationStatus status) {
Send(new ViewHostMsg_SendSerializedHtmlData(routing_id_,
frame_url, data, static_cast<int32>(status)));
}
void RenderView::OnMsgShouldClose() {
bool should_close = webview()->ShouldClose();
Send(new ViewHostMsg_ShouldClose_ACK(routing_id_, should_close));
}
void RenderView::OnClosePage(int new_render_process_host_id,
int new_request_id) {
// TODO(creis): We'd rather use webview()->Close() here, but that currently
// sets the WebView's delegate_ to NULL, preventing any JavaScript dialogs
// in the onunload handler from appearing. For now, we're bypassing that and
// calling the FrameLoader's CloseURL method directly. This should be
// revisited to avoid having two ways to close a page. Having a single way
// to close that can run onunload is also useful for fixing
// http://b/issue?id=753080.
WebFrame* main_frame = webview()->GetMainFrame();
if (main_frame)
main_frame->ClosePage();
Send(new ViewHostMsg_ClosePage_ACK(routing_id_,
new_render_process_host_id,
new_request_id));
}
void RenderView::OnThemeChanged() {
gfx::NativeTheme::instance()->CloseHandles();
gfx::Rect view_rect(0, 0, size_.width(), size_.height());
DidInvalidateRect(webwidget_, view_rect);
}
#ifdef CHROME_PERSONALIZATION
void RenderView::OnPersonalizationEvent(std::string event_name,
std::string event_args) {
Personalization::HandleViewMsgPersonalizationEvent(personalization_,
webview(),
event_name,
event_args);
}
#endif
void RenderView::TransitionToCommittedForNewPage() {
#ifdef CHROME_PERSONALIZATION
Personalization::HandleTransitionToCommittedForNewPage(personalization_);
#endif
}
void RenderView::DidAddHistoryItem() {
// We don't want to update the history length for the start page
// navigation.
WebFrame* main_frame = webview()->GetMainFrame();
DCHECK(main_frame != NULL);
WebDataSource* ds = main_frame->GetDataSource();
DCHECK(ds != NULL);
const WebRequest& request = ds->GetRequest();
RenderViewExtraRequestData* extra_data =
static_cast<RenderViewExtraRequestData*>(request.GetExtraData());
if (extra_data && extra_data->transition_type == PageTransition::START_PAGE)
return;
history_back_list_count_++;
history_forward_list_count_ = 0;
}
void RenderView::OnMessageFromExternalHost(
const std::string& target, const std::string& message) {
if (message.empty())
return;
WebFrame* main_frame = webview()->GetMainFrame();
if (!main_frame)
return;
std::string script = "javascript:";
script += target;
script += "(";
script += "'";
script += message;
script += "'";
script += ");void(0);";
GURL script_url(script);
scoped_ptr<WebRequest> request(WebRequest::Create(script_url));
// TODO(iyengar)
// Need a mechanism to send results back.
main_frame->LoadRequest(request.get());
}
void RenderView::OnDisassociateFromPopupCount() {
if (decrement_shared_popup_at_destruction_)
shared_popup_counter_->data--;
shared_popup_counter_ = new SharedRenderViewCounter(0);
decrement_shared_popup_at_destruction_ = false;
}
std::string RenderView::GetAltHTMLForTemplate(
const DictionaryValue& error_strings, int template_resource_id) const {
const StringPiece template_html(
ResourceBundle::GetSharedInstance().GetRawDataResource(
template_resource_id));
if (template_html.empty()) {
NOTREACHED() << "unable to load template. ID: " << template_resource_id;
return "";
}
// "t" is the id of the templates root node.
return jstemplate_builder::GetTemplateHtml(
template_html, &error_strings, "t");
}