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ff983a6e72
cef/libcef/browser_webview_delegate.cc
Marshall Greenblatt ff983a6e72 - Add off-screen rendering support on Windows. This involves a number of new CefBrowser and CefHandler methods. See the "Off-Screen Rendering Example" in cefclient for example usage. 
- Add CefRunMessageLoop() for efficient message loop usage and modify cefclient to use it.
- Add CefHandler::HandleNavStateChange() for back/forward state notifications and modify cefclient to use it.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@208 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
2011-03-24 20:36:47 +00:00

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// Copyright (c) 2008-2009 The Chromium Embedded Framework Authors.
// Portions 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.
// This file contains the implementation of BrowserWebViewDelegate, which serves
// as the WebViewDelegate for the BrowserWebHost. The host is expected to
// have initialized a MessageLoop before these methods are called.
#include "browser_webview_delegate.h"
#include "browser_appcache_system.h"
#include "browser_file_system.h"
#include "browser_impl.h"
#include "browser_navigation_controller.h"
#include "browser_web_worker.h"
#include "browser_webkit_glue.h"
#include "browser_zoom_map.h"
#include "cef_context.h"
#include "request_impl.h"
#include "v8_impl.h"
#include "base/debug/trace_event.h"
#include "base/file_util.h"
#include "base/message_loop.h"
#include "base/process_util.h"
#include "base/string_util.h"
#include "media/base/filter_collection.h"
#include "media/base/message_loop_factory_impl.h"
#include "media/filters/audio_renderer_impl.h"
#include "net/base/net_errors.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebConsoleMessage.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebContextMenuData.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebCString.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebData.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDataSource.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDragData.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFileError.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFileSystemCallbacks.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebHistoryItem.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebImage.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebKit.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebKitClient.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebNode.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebPoint.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebPluginParams.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebRange.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebScreenInfo.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebStorageNamespace.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebString.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURL.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURLError.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURLRequest.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURLResponse.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebVector.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebWindowFeatures.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gfx/point.h"
#include "webkit/appcache/web_application_cache_host_impl.h"
#include "webkit/glue/glue_serialize.h"
#include "webkit/glue/media/video_renderer_impl.h"
#include "webkit/glue/webdropdata.h"
#include "webkit/glue/webpreferences.h"
#include "webkit/glue/webkit_glue.h"
#include "webkit/glue/webmediaplayer_impl.h"
#include "webkit/glue/window_open_disposition.h"
#include "webkit/plugins/npapi/plugin_list.h"
#include "webkit/plugins/npapi/webplugin_delegate_impl.h"
#include "webkit/plugins/npapi/webplugin_impl.h"
#if defined(OS_WIN)
// TODO(port): make these files work everywhere.
#include "browser_drag_delegate_win.h"
#include "web_drop_target_win.h"
#endif
using appcache::WebApplicationCacheHostImpl;
using WebKit::WebApplicationCacheHost;
using WebKit::WebApplicationCacheHostClient;
using WebKit::WebConsoleMessage;
using WebKit::WebContextMenuData;
using WebKit::WebCookieJar;
using WebKit::WebData;
using WebKit::WebDataSource;
using WebKit::WebDragData;
using WebKit::WebDragOperationsMask;
using WebKit::WebEditingAction;
using WebKit::WebFileChooserParams;
using WebKit::WebFileSystem;
using WebKit::WebFileSystemCallbacks;
using WebKit::WebFormElement;
using WebKit::WebFrame;
using WebKit::WebHistoryItem;
using WebKit::WebImage;
using WebKit::WebMediaPlayer;
using WebKit::WebMediaPlayerClient;
using WebKit::WebNavigationType;
using WebKit::WebNavigationPolicy;
using WebKit::WebNode;
using WebKit::WebPlugin;
using WebKit::WebPluginParams;
using WebKit::WebPoint;
using WebKit::WebPopupType;
using WebKit::WebRange;
using WebKit::WebRect;
using WebKit::WebScreenInfo;
using WebKit::WebSecurityOrigin;
using WebKit::WebSize;
using WebKit::WebStorageNamespace;
using WebKit::WebString;
using WebKit::WebTextAffinity;
using WebKit::WebTextDirection;
using WebKit::WebURL;
using WebKit::WebURLError;
using WebKit::WebURLRequest;
using WebKit::WebURLResponse;
using WebKit::WebVector;
using WebKit::WebView;
using WebKit::WebWidget;
using WebKit::WebWindowFeatures;
using WebKit::WebWorker;
using WebKit::WebWorkerClient;
using WebKit::WebKeyboardEvent;
namespace {
int next_page_id_ = 1;
void TranslatePopupFeatures(const WebWindowFeatures& webKitFeatures,
CefPopupFeatures& features)
{
features.x = static_cast<int>(webKitFeatures.x);
features.xSet = webKitFeatures.xSet;
features.y = static_cast<int>(webKitFeatures.y);
features.ySet = webKitFeatures.ySet;
features.width = static_cast<int>(webKitFeatures.width);
features.widthSet = webKitFeatures.widthSet;
features.height = static_cast<int>(webKitFeatures.height);
features.heightSet = webKitFeatures.heightSet;
features.menuBarVisible = webKitFeatures.menuBarVisible;
features.statusBarVisible = webKitFeatures.statusBarVisible;
features.toolBarVisible = webKitFeatures.toolBarVisible;
features.locationBarVisible = webKitFeatures.locationBarVisible;
features.scrollbarsVisible = webKitFeatures.scrollbarsVisible;
features.resizable = webKitFeatures.resizable;
features.fullscreen = webKitFeatures.fullscreen;
features.dialog = webKitFeatures.dialog;
features.additionalFeatures = NULL;
if (webKitFeatures.additionalFeatures.size() > 0)
features.additionalFeatures = cef_string_list_alloc();
CefString str;
for(unsigned int i = 0; i < webKitFeatures.additionalFeatures.size(); ++i) {
str = string16(webKitFeatures.additionalFeatures[i]);
cef_string_list_append(features.additionalFeatures, str.GetStruct());
}
}
} // namespace
// WebViewClient -------------------------------------------------------------
WebView* BrowserWebViewDelegate::createView(WebFrame* creator,
const WebURLRequest& request, const WebWindowFeatures& features,
const WebString& name) {
CefString url;
if (!request.isNull())
url = request.url().spec().utf16();
CefPopupFeatures cefFeatures;
TranslatePopupFeatures(features, cefFeatures);
CefRefPtr<CefBrowserImpl> browser =
browser_->UIT_CreatePopupWindow(url, cefFeatures);
return browser.get() ? browser->UIT_GetWebView() : NULL;
}
WebWidget* BrowserWebViewDelegate::createPopupMenu(WebPopupType popup_type) {
// TODO(darin): Should we take into account |popup_type| (for activation
// purpose)?
return browser_->UIT_CreatePopupWidget();
}
WebStorageNamespace* BrowserWebViewDelegate::createSessionStorageNamespace(
unsigned quota) {
// Enforce quota, ignoring the parameter from WebCore as in Chrome. We could
// potentially use DOMStorageContext to manage session storage but there's
// currently no need since session storage data is not written to disk.
return WebKit::WebStorageNamespace::createSessionStorageNamespace(
WebStorageNamespace::m_sessionStorageQuota);
}
void BrowserWebViewDelegate::didAddMessageToConsole(
const WebConsoleMessage& message, const WebString& source_name,
unsigned source_line) {
std::string messageStr = message.text.utf8();
std::string sourceStr = source_name.utf8();
CefHandler::RetVal rv = RV_CONTINUE;
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if(handler.get()) {
rv = handler->HandleConsoleMessage(browser_, messageStr, sourceStr,
source_line);
}
if(rv == RV_CONTINUE) {
logging::LogMessage("CONSOLE", 0).stream() << "\""
<< messageStr
<< ",\" source: "
<< sourceStr
<< "("
<< source_line
<< ")";
}
}
void BrowserWebViewDelegate::printPage(WebFrame* frame) {
if (!frame) {
WebView* view = browser_->UIT_GetWebView();
if (view)
frame = view->mainFrame();
}
if (frame)
browser_->UIT_PrintPages(frame);
}
bool BrowserWebViewDelegate::shouldBeginEditing(const WebRange& range) {
return browser_->UIT_AllowEditing();
}
bool BrowserWebViewDelegate::shouldEndEditing(const WebRange& range) {
return browser_->UIT_AllowEditing();
}
bool BrowserWebViewDelegate::shouldInsertNode(const WebNode& node,
const WebRange& range,
WebEditingAction action) {
return browser_->UIT_AllowEditing();
}
bool BrowserWebViewDelegate::shouldInsertText(const WebString& text,
const WebRange& range,
WebEditingAction action) {
return browser_->UIT_AllowEditing();
}
bool BrowserWebViewDelegate::shouldChangeSelectedRange(
const WebRange& from_range, const WebRange& to_range,
WebTextAffinity affinity, bool still_selecting) {
return browser_->UIT_AllowEditing();
}
bool BrowserWebViewDelegate::shouldDeleteRange(const WebRange& range) {
return browser_->UIT_AllowEditing();
}
bool BrowserWebViewDelegate::shouldApplyStyle(const WebString& style,
const WebRange& range) {
return browser_->UIT_AllowEditing();
}
bool BrowserWebViewDelegate::isSmartInsertDeleteEnabled() {
return smart_insert_delete_enabled_;
}
bool BrowserWebViewDelegate::isSelectTrailingWhitespaceEnabled() {
return select_trailing_whitespace_enabled_;
}
bool BrowserWebViewDelegate::handleCurrentKeyboardEvent() {
CefHandler::RetVal rv = RV_CONTINUE;
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if (handler.get()) {
WebWidgetHost* host = GetWidgetHost();
if (host) {
WebKeyboardEvent event = host->GetLastKeyEvent();
switch (event.type)
{
case WebKeyboardEvent::RawKeyDown:
rv = handler->HandleKeyEvent(browser_,
KEYEVENT_RAWKEYDOWN, event.windowsKeyCode,
event.modifiers, event.isSystemKey?true:false);
break;
case WebKeyboardEvent::KeyUp:
rv = handler->HandleKeyEvent(browser_,
KEYEVENT_KEYUP, event.windowsKeyCode,
event.modifiers, event.isSystemKey?true:false);
break;
case WebKeyboardEvent::Char:
rv = handler->HandleKeyEvent(browser_,
KEYEVENT_CHAR, event.windowsKeyCode,
event.modifiers, event.isSystemKey?true:false);
break;
default:
break;
}
}
}
if (rv == RV_HANDLED)
return true;
if (edit_command_name_.empty())
return false;
WebView* view = browser_->UIT_GetWebView();
WebFrame* frame = NULL;
if (view)
frame = view->focusedFrame();
if (!frame)
return false;
return frame->executeCommand(WebString::fromUTF8(edit_command_name_),
WebString::fromUTF8(edit_command_value_));
}
bool BrowserWebViewDelegate::runFileChooser(
const WebFileChooserParams& params,
WebKit::WebFileChooserCompletion* chooser_completion) {
// Support file open dialog.
std::vector<FilePath> file_names;
if(!ShowFileChooser(file_names, params.multiSelect, params.title,
webkit_glue::WebStringToFilePath(params.initialValue))) {
return false;
}
WebVector<WebString> ws_file_names(file_names.size());
for (size_t i = 0; i < file_names.size(); ++i) {
ws_file_names[i] = webkit_glue::FilePathToWebString(file_names[i]);
}
chooser_completion->didChooseFile(ws_file_names);
return true;
}
void BrowserWebViewDelegate::runModalAlertDialog(
WebFrame* frame, const WebString& message) {
CefHandler::RetVal rv = RV_CONTINUE;
CefString messageStr = string16(message);
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if(handler.get()) {
rv = handler->HandleJSAlert(browser_, browser_->UIT_GetCefFrame(frame),
messageStr);
}
if(rv != RV_HANDLED)
ShowJavaScriptAlert(frame, messageStr);
}
bool BrowserWebViewDelegate::runModalConfirmDialog(
WebFrame* frame, const WebString& message) {
CefHandler::RetVal rv = RV_CONTINUE;
CefString messageStr = string16(message);
bool retval = false;
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if(handler.get()) {
rv = handler->HandleJSConfirm(browser_, browser_->UIT_GetCefFrame(frame),
messageStr, retval);
}
if(rv != RV_HANDLED)
retval = ShowJavaScriptConfirm(frame, messageStr);
return retval;
}
bool BrowserWebViewDelegate::runModalPromptDialog(
WebFrame* frame, const WebString& message, const WebString& default_value,
WebString* actual_value) {
CefString messageStr = string16(message);
CefString defaultValueStr = string16(default_value);
CefString actualValueStr;
if(actual_value)
actualValueStr = string16(*actual_value);
CefHandler::RetVal rv = RV_CONTINUE;
bool retval = false;
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if(handler.get()) {
rv = handler->HandleJSPrompt(browser_, browser_->UIT_GetCefFrame(frame),
messageStr, defaultValueStr, retval, actualValueStr);
}
if(rv != RV_HANDLED) {
retval = ShowJavaScriptPrompt(frame, messageStr, defaultValueStr,
&actualValueStr);
}
if (actual_value)
*actual_value = string16(actualValueStr);
return retval;
}
bool BrowserWebViewDelegate::runModalBeforeUnloadDialog(
WebFrame* frame, const WebString& message) {
return true; // Allow window closure.
}
void BrowserWebViewDelegate::setStatusText(const WebString& text) {
ShowStatus(text, STATUSTYPE_TEXT);
}
void BrowserWebViewDelegate::setMouseOverURL(const WebURL& url) {
ShowStatus(url.spec().utf16(), STATUSTYPE_MOUSEOVER_URL);
}
void BrowserWebViewDelegate::setKeyboardFocusURL(const WebKit::WebURL& url) {
ShowStatus(url.spec().utf16(), STATUSTYPE_KEYBOARD_FOCUS_URL);
}
void BrowserWebViewDelegate::setToolTipText(
const WebString& text, WebTextDirection hint)
{
CefString tooltipStr = string16(text);
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if(handler.get() && handler->HandleTooltip(browser_, tooltipStr)
== RV_CONTINUE){
GetWidgetHost()->SetTooltipText(tooltipStr);
}
}
void BrowserWebViewDelegate::startDragging(
const WebDragData& data,
WebDragOperationsMask mask,
const WebImage& image,
const WebPoint& image_offset) {
#if defined(OS_WIN)
// Dragging is not supported when window rendering is disabled.
if (browser_->IsWindowRenderingDisabled()) {
EndDragging();
return;
}
drag_delegate_ = new BrowserDragDelegate(this);
drag_delegate_->StartDragging(WebDropData(data), mask, image.getSkBitmap(),
image_offset);
#else
// TODO(port): Support drag and drop.
EndDragging();
#endif
}
void BrowserWebViewDelegate::focusNext() {
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if(handler.get()) {
// Notify the handler that it should take a focus
handler->HandleTakeFocus(browser_, false);
}
}
void BrowserWebViewDelegate::focusPrevious() {
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if(handler.get()) {
// Notify the handler that it should take a focus
handler->HandleTakeFocus(browser_, true);
}
}
void BrowserWebViewDelegate::navigateBackForwardSoon(int offset) {
browser_->UIT_GetNavigationController()->GoToOffset(offset);
}
int BrowserWebViewDelegate::historyBackListCount() {
int current_index =
browser_->UIT_GetNavigationController()->GetLastCommittedEntryIndex();
return current_index;
}
int BrowserWebViewDelegate::historyForwardListCount() {
int current_index =
browser_->UIT_GetNavigationController()->GetLastCommittedEntryIndex();
return browser_->UIT_GetNavigationController()->GetEntryCount()
- current_index - 1;
}
// WebPluginPageDelegate -----------------------------------------------------
WebCookieJar* BrowserWebViewDelegate::GetCookieJar() {
return WebKit::webKitClient()->cookieJar();
}
// WebWidgetClient -----------------------------------------------------------
void BrowserWebViewDelegate::didInvalidateRect(const WebRect& rect) {
if (WebWidgetHost* host = GetWidgetHost())
host->DidInvalidateRect(rect);
}
void BrowserWebViewDelegate::didScrollRect(int dx, int dy,
const WebRect& clip_rect) {
if (WebWidgetHost* host = GetWidgetHost())
host->DidScrollRect(dx, dy, clip_rect);
}
void BrowserWebViewDelegate::scheduleComposite() {
if (WebWidgetHost* host = GetWidgetHost())
host->ScheduleComposite();
}
void BrowserWebViewDelegate::scheduleAnimation() {
if (WebWidgetHost* host = GetWidgetHost())
host->ScheduleAnimation();
}
void BrowserWebViewDelegate::didFocus() {
if (WebWidgetHost* host = GetWidgetHost()) {
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if (handler.get() && handler->HandleSetFocus(browser_, true) == RV_CONTINUE)
browser_->UIT_SetFocus(host, true);
}
}
void BrowserWebViewDelegate::didBlur() {
if (WebWidgetHost* host = GetWidgetHost())
browser_->UIT_SetFocus(host, false);
}
void BrowserWebViewDelegate::closeWidgetSoon() {
if (this == browser_->UIT_GetWebViewDelegate()) {
browser_->UIT_CloseBrowser();
} else if (this == browser_->UIT_GetPopupDelegate()) {
browser_->UIT_ClosePopupWidget();
}
}
WebScreenInfo BrowserWebViewDelegate::screenInfo() {
if (WebWidgetHost* host = GetWidgetHost()) {
WebScreenInfo info = host->GetScreenInfo();
if (browser_->IsWindowRenderingDisabled()) {
// Retrieve the screen rectangle from the handler.
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if (handler.get()) {
CefRect rect(info.rect.x, info.rect.y, info.rect.width,
info.rect.height);
if (handler->HandleGetRect(browser_, true, rect) == RV_CONTINUE) {
info.rect = WebRect(rect.x, rect.y, rect.width, rect.height);
info.availableRect = info.rect;
}
}
}
}
return WebScreenInfo();
}
// WebFrameClient ------------------------------------------------------------
WebPlugin* BrowserWebViewDelegate::createPlugin(
WebFrame* frame, const WebPluginParams& params) {
bool allow_wildcard = true;
webkit::npapi::WebPluginInfo info;
std::string actual_mime_type;
if (!webkit::npapi::PluginList::Singleton()->GetPluginInfo(
params.url, params.mimeType.utf8(), allow_wildcard, &info,
&actual_mime_type) || !webkit::npapi::IsPluginEnabled(info)) {
return NULL;
}
return new webkit::npapi::WebPluginImpl(
frame, params, info.path, actual_mime_type, AsWeakPtr());
}
WebWorker* BrowserWebViewDelegate::createWorker(
WebFrame* frame, WebWorkerClient* client) {
return new BrowserWebWorker();
}
WebMediaPlayer* BrowserWebViewDelegate::createMediaPlayer(
WebFrame* frame, WebMediaPlayerClient* client) {
scoped_ptr<media::MessageLoopFactory> message_loop_factory(
new media::MessageLoopFactoryImpl());
scoped_ptr<media::FilterCollection> collection(
new media::FilterCollection());
scoped_refptr<webkit_glue::VideoRendererImpl> video_renderer(
new webkit_glue::VideoRendererImpl(false));
collection->AddVideoRenderer(video_renderer);
// Add the audio renderer.
collection->AddAudioRenderer(new media::AudioRendererImpl());
scoped_ptr<webkit_glue::WebMediaPlayerImpl> result(
new webkit_glue::WebMediaPlayerImpl(client,
collection.release(),
message_loop_factory.release()));
if (!result->Initialize(frame, false, video_renderer))
return NULL;
return result.release();
}
WebApplicationCacheHost* BrowserWebViewDelegate::createApplicationCacheHost(
WebFrame* frame, WebApplicationCacheHostClient* client) {
return BrowserAppCacheSystem::CreateApplicationCacheHost(client);
}
void BrowserWebViewDelegate::willClose(WebFrame* frame) {
browser_->UIT_BeforeFrameClosed(frame);
}
void BrowserWebViewDelegate::loadURLExternally(
WebFrame* frame, const WebURLRequest& request,
WebNavigationPolicy policy) {
DCHECK_NE(policy, WebKit::WebNavigationPolicyCurrentTab);
browser_->UIT_CreatePopupWindow(std::string(request.url().spec().data()),
CefPopupFeatures());
}
WebNavigationPolicy BrowserWebViewDelegate::decidePolicyForNavigation(
WebFrame* frame, const WebURLRequest& request,
WebNavigationType type, const WebNode& originating_node,
WebNavigationPolicy default_policy, bool is_redirect) {
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if(handler.get()) {
// Gather browse request information
CefRefPtr<CefRequest> req(CefRequest::CreateRequest());
GURL request_url = request.url();
if (!request_url.is_valid())
return WebKit::WebNavigationPolicyIgnore;
req->SetURL(request_url.spec());
req->SetMethod(string16(request.httpMethod()));
const WebKit::WebHTTPBody& httpBody = request.httpBody();
if(!httpBody.isNull()) {
CefRefPtr<CefPostData> postdata(CefPostData::CreatePostData());
static_cast<CefPostDataImpl*>(postdata.get())->Set(httpBody);
req->SetPostData(postdata);
}
CefRequest::HeaderMap map;
CefRequestImpl::GetHeaderMap(request, map);
if(map.size() > 0)
static_cast<CefRequestImpl*>(req.get())->SetHeaderMap(map);
// Notify the handler of a browse request
CefHandler::RetVal rv = handler->HandleBeforeBrowse(browser_,
browser_->UIT_GetCefFrame(frame), req, (CefHandler::NavType)type,
is_redirect);
if(rv == RV_HANDLED)
return WebKit::WebNavigationPolicyIgnore;
}
WebNavigationPolicy result;
if (policy_delegate_enabled_) {
if (policy_delegate_is_permissive_) {
result = WebKit::WebNavigationPolicyCurrentTab;
} else {
result = WebKit::WebNavigationPolicyIgnore;
}
} else {
result = default_policy;
}
return result;
}
WebURLError BrowserWebViewDelegate::cannotHandleRequestError(
WebFrame* frame, const WebURLRequest& request) {
WebURLError error;
error.domain = WebString::fromUTF8(net::kErrorDomain);
error.reason = net::ERR_ABORTED;
error.unreachableURL = request.url();
return error;
}
WebURLError BrowserWebViewDelegate::cancelledError(
WebFrame* frame, const WebURLRequest& request) {
WebURLError error;
error.domain = WebString::fromUTF8(net::kErrorDomain);
error.reason = net::ERR_ABORTED;
error.unreachableURL = request.url();
return error;
}
void BrowserWebViewDelegate::didCreateDataSource(
WebFrame* frame, WebDataSource* ds) {
ds->setExtraData(pending_extra_data_.release());
}
void BrowserWebViewDelegate::didStartProvisionalLoad(WebFrame* frame) {
}
void BrowserWebViewDelegate::didReceiveServerRedirectForProvisionalLoad(
WebFrame* frame) {
}
void BrowserWebViewDelegate::didFailProvisionalLoad(
WebFrame* frame, const WebURLError& error) {
LocationChangeDone(frame);
// error codes are defined in net\base\net_error_list.h
// 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.reason == net::ERR_ABORTED)
return;
const WebDataSource* failed_ds = frame->provisionalDataSource();
BrowserExtraData* extra_data =
static_cast<BrowserExtraData*>(failed_ds->extraData());
if (extra_data && !extra_data->request_committed) {
// Set the pending extra_data for our error page as the same pending_page_id
// to keep the history from getting messed up.
set_pending_extra_data(new BrowserExtraData(extra_data->pending_page_id));
}
std::string error_text;
CefString errorStr;
CefRefPtr<CefHandler> handler = browser_->GetHandler();
CefHandler::RetVal rv = RV_CONTINUE;
if(handler.get()) {
// give the handler an opportunity to generate a custom error message
rv = handler->HandleLoadError(browser_,
browser_->UIT_GetCefFrame(frame),
static_cast<CefHandler::ErrorCode>(error.reason),
std::string(failed_ds->request().url().spec().data()), errorStr);
}
if(rv == RV_HANDLED && !errorStr.empty()) {
error_text = errorStr;
} else {
error_text = StringPrintf("Error %d when loading url %s",
error.reason, failed_ds->request().url().spec().data());
}
// Make sure we never show errors in view source mode.
frame->enableViewSourceMode(false);
frame->loadHTMLString(
error_text, GURL("testshell-error:"), error.unreachableURL, false);
// In case loadHTMLString failed before DidCreateDataSource was called.
set_pending_extra_data(NULL);
}
void BrowserWebViewDelegate::didCommitProvisionalLoad(
WebFrame* frame, bool is_new_navigation) {
bool is_main_frame = (frame->parent() == 0);
if (is_main_frame) {
// Clear the title so we can tell if it wasn't provided by the page.
browser_->UIT_SetTitle(std::wstring());
}
UpdateForCommittedLoad(frame, is_new_navigation);
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if(handler.get()) {
// Notify the handler that loading has started.
handler->HandleLoadStart(browser_, browser_->UIT_GetCefFrame(frame));
}
// Apply zoom settings only on top-level frames.
if(is_main_frame) {
// Restore the zoom value that we have for this URL, if any.
double zoomLevel = 0.0;
ZoomMap::GetInstance()->get(frame->url(), zoomLevel);
frame->view()->setZoomLevel(false, zoomLevel);
browser_->set_zoom_level(zoomLevel);
}
}
void BrowserWebViewDelegate::didClearWindowObject(WebFrame* frame) {
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if(handler.get()) {
v8::HandleScope handle_scope;
v8::Handle<v8::Context> context = webkit_glue::GetV8Context(frame);
if(context.IsEmpty())
return;
v8::Context::Scope scope(context);
CefRefPtr<CefFrame> cframe(browser_->UIT_GetCefFrame(frame));
CefRefPtr<CefV8Value> object = new CefV8ValueImpl(context->Global());
handler->HandleJSBinding(browser_, cframe, object);
}
}
void BrowserWebViewDelegate::didReceiveTitle(
WebFrame* frame, const WebString& title) {
bool is_main_frame = (frame->parent() == 0);
if (is_main_frame) {
CefString titleStr = string16(title);
browser_->UIT_SetTitle(titleStr);
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if(handler.get()) {
// Notify the handler of a page title change
handler->HandleTitleChange(browser_, titleStr);
}
}
}
void BrowserWebViewDelegate::didFailLoad(
WebFrame* frame, const WebURLError& error) {
LocationChangeDone(frame);
}
void BrowserWebViewDelegate::didFinishLoad(WebFrame* frame) {
LocationChangeDone(frame);
}
void BrowserWebViewDelegate::didNavigateWithinPage(
WebFrame* frame, bool is_new_navigation) {
frame->dataSource()->setExtraData(pending_extra_data_.release());
UpdateForCommittedLoad(frame, is_new_navigation);
}
void BrowserWebViewDelegate::willSendRequest(
WebFrame* frame, unsigned identifier, WebURLRequest& request,
const WebURLResponse& redirect_response) {
if (!redirect_response.isNull() && block_redirects_) {
// To block the request, we set its URL to an empty one.
request.setURL(WebURL());
return;
}
// The requestor ID is used by the resource loader bridge to locate the
// browser that originated the request.
request.setRequestorID(browser_->UIT_GetUniqueID());
}
void BrowserWebViewDelegate::reportFindInPageMatchCount(
int request_id, int count, bool final_update)
{
browser_->UIT_NotifyFindStatus(request_id, count, gfx::Rect(),
-1, // // Don't update active match ordinal.
final_update);
}
void BrowserWebViewDelegate::reportFindInPageSelection(
int request_id, int active_match_ordinal, const WebKit::WebRect& sel)
{
browser_->UIT_NotifyFindStatus(request_id, -1, sel, active_match_ordinal,
false);
}
void BrowserWebViewDelegate::openFileSystem(
WebFrame* frame, WebFileSystem::Type type, long long size, bool create,
WebFileSystemCallbacks* callbacks) {
BrowserFileSystem* fileSystem = static_cast<BrowserFileSystem*>(
WebKit::webKitClient()->fileSystem());
fileSystem->OpenFileSystem(frame, type, size, create, callbacks);
}
// Public methods ------------------------------------------------------------
BrowserWebViewDelegate::BrowserWebViewDelegate(CefBrowserImpl* browser)
: policy_delegate_enabled_(false),
policy_delegate_is_permissive_(false),
policy_delegate_should_notify_done_(false),
browser_(browser),
page_id_(-1),
last_page_id_updated_(-1),
smart_insert_delete_enabled_(true),
#if defined(OS_WIN)
select_trailing_whitespace_enabled_(true),
#else
select_trailing_whitespace_enabled_(false),
#endif
block_redirects_(false) {
}
BrowserWebViewDelegate::~BrowserWebViewDelegate() {
}
void BrowserWebViewDelegate::Reset() {
// Do a little placement new dance...
CefBrowserImpl* browser = browser_;
this->~BrowserWebViewDelegate();
new (this) BrowserWebViewDelegate(browser);
}
void BrowserWebViewDelegate::SetSmartInsertDeleteEnabled(bool enabled) {
smart_insert_delete_enabled_ = enabled;
// In upstream WebKit, smart insert/delete is mutually exclusive with select
// trailing whitespace, however, we allow both because Chromium on Windows
// allows both.
}
void BrowserWebViewDelegate::SetSelectTrailingWhitespaceEnabled(bool enabled) {
select_trailing_whitespace_enabled_ = enabled;
// In upstream WebKit, smart insert/delete is mutually exclusive with select
// trailing whitespace, however, we allow both because Chromium on Windows
// allows both.
}
void BrowserWebViewDelegate::RegisterDragDrop() {
#if defined(OS_WIN)
// TODO(port): add me once drag and drop works.
DCHECK(!drop_target_);
drop_target_ = new WebDropTarget(browser_->UIT_GetWebViewWndHandle(),
browser_->UIT_GetWebView());
#endif
}
void BrowserWebViewDelegate::RevokeDragDrop() {
#if defined(OS_WIN)
if (drop_target_.get())
::RevokeDragDrop(browser_->UIT_GetWebViewWndHandle());
#endif
}
void BrowserWebViewDelegate::SetCustomPolicyDelegate(bool is_custom,
bool is_permissive) {
policy_delegate_enabled_ = is_custom;
policy_delegate_is_permissive_ = is_permissive;
}
void BrowserWebViewDelegate::WaitForPolicyDelegate() {
policy_delegate_enabled_ = true;
policy_delegate_should_notify_done_ = true;
}
// Private methods -----------------------------------------------------------
void BrowserWebViewDelegate::ShowStatus(const WebString& text,
CefHandler::StatusType type)
{
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if(handler.get()) {
CefString textStr = string16(text);
handler->HandleStatus(browser_, textStr, type);
}
}
void BrowserWebViewDelegate::LocationChangeDone(WebFrame* frame) {
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if (!handler.get())
return;
bool is_main_frame = (frame->parent() == 0);
if (is_main_frame) {
CefString title = browser_->UIT_GetTitle();
if (title.empty()) {
// No title was provided by the page, so send a blank string to the
// client.
handler->HandleTitleChange(browser_, title);
}
}
// Notify the handler that loading has ended.
int httpStatusCode = frame->dataSource()->response().httpStatusCode();
handler->HandleLoadEnd(browser_, browser_->UIT_GetCefFrame(frame),
httpStatusCode);
}
WebWidgetHost* BrowserWebViewDelegate::GetWidgetHost() {
if (this == browser_->UIT_GetWebViewDelegate())
return browser_->UIT_GetWebViewHost();
if (this == browser_->UIT_GetPopupDelegate())
return browser_->UIT_GetPopupHost();
return NULL;
}
void BrowserWebViewDelegate::EndDragging() {
browser_->UIT_GetWebView()->dragSourceSystemDragEnded();
#if defined(OS_WIN)
drag_delegate_ = NULL;
#endif
}
void BrowserWebViewDelegate::UpdateForCommittedLoad(WebFrame* frame,
bool is_new_navigation) {
// Code duplicated from RenderView::DidCommitLoadForFrame.
BrowserExtraData* extra_data = static_cast<BrowserExtraData*>(
frame->dataSource()->extraData());
if (is_new_navigation) {
// New navigation.
UpdateSessionHistory(frame);
page_id_ = next_page_id_++;
} else if (extra_data && extra_data->pending_page_id != -1 &&
!extra_data->request_committed) {
// This is a successful session history navigation!
UpdateSessionHistory(frame);
page_id_ = extra_data->pending_page_id;
}
// Don't update session history multiple times.
if (extra_data)
extra_data->request_committed = true;
UpdateURL(frame);
}
void BrowserWebViewDelegate::UpdateURL(WebFrame* frame) {
WebDataSource* ds = frame->dataSource();
DCHECK(ds);
const WebURLRequest& request = ds->request();
// Type is unused.
scoped_ptr<BrowserNavigationEntry> entry(new BrowserNavigationEntry);
// Bug 654101: the referrer will be empty on https->http transitions. It
// would be nice if we could get the real referrer from somewhere.
entry->SetPageID(page_id_);
if (ds->hasUnreachableURL()) {
entry->SetURL(ds->unreachableURL());
} else {
entry->SetURL(request.url());
}
bool is_main_frame = (frame->parent() == 0);
CefRefPtr<CefHandler> handler = browser_->GetHandler();
if (is_main_frame && handler.get()) {
// Notify the handler of an address change
std::string url = std::string(entry->GetURL().spec().c_str());
handler->HandleAddressChange(browser_, browser_->UIT_GetCefFrame(frame),
url);
}
const WebHistoryItem& history_item = frame->currentHistoryItem();
if (!history_item.isNull())
entry->SetContentState(webkit_glue::HistoryItemToString(history_item));
BrowserNavigationController* controller =
browser_->UIT_GetNavigationController();
bool old_can_go_back = !controller->IsAtStart();
bool old_can_go_forward = !controller->IsAtEnd();
controller->DidNavigateToEntry(entry.release());
bool new_can_go_back = !controller->IsAtStart();
bool new_can_go_forward = !controller->IsAtEnd();
last_page_id_updated_ = std::max(last_page_id_updated_, page_id_);
if (old_can_go_back != new_can_go_back ||
old_can_go_forward != new_can_go_forward) {
browser_->set_nav_state(new_can_go_back, new_can_go_forward);
if (handler.get()) {
// Notify the handler of a navigation state change
handler->HandleNavStateChange(browser_, new_can_go_back,
new_can_go_forward);
}
}
}
void BrowserWebViewDelegate::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;
BrowserNavigationEntry* entry = static_cast<BrowserNavigationEntry*>(
browser_->UIT_GetNavigationController()->GetEntryWithPageID(page_id_));
if (!entry)
return;
WebView* view = browser_->UIT_GetWebView();
if (!view)
return;
const WebHistoryItem& history_item = view->mainFrame()->previousHistoryItem();
if (history_item.isNull())
return;
entry->SetContentState(webkit_glue::HistoryItemToString(history_item));
}
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