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// Copyright (c) 2012 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 "android_webview/renderer/aw_render_view_ext.h"
#include <string>
#include "android_webview/common/aw_hit_test_data.h"
#include "android_webview/common/render_view_messages.h"
#include "android_webview/common/renderer_picture_map.h"
#include "base/bind.h"
#include "base/string_piece.h"
#include "content/public/common/url_constants.h"
#include "content/public/renderer/android_content_detection_prefixes.h"
#include "content/public/renderer/document_state.h"
#include "content/public/renderer/render_view.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebSize.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebURL.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebVector.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDataSource.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebElement.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebHitTestResult.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebNode.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
namespace android_webview {
namespace {
bool RemovePrefixAndAssignIfMatches(const base::StringPiece& prefix,
const GURL& url,
std::string* dest) {
const base::StringPiece spec(url.spec());
if (spec.starts_with(prefix)) {
dest->assign(spec.begin() + prefix.length(), spec.end());
return true;
}
return false;
}
}
AwRenderViewExt::AwRenderViewExt(content::RenderView* render_view)
: content::RenderViewObserver(render_view) {
render_view->GetWebView()->setPermissionClient(this);
// TODO(leandrogracia): enable once the feature is available in RenderView.
//render_view->SetCapturePictureCallback(
// base::Bind(&AwRenderViewExt::OnPictureUpdate, AsWeakPtr()));
}
AwRenderViewExt::~AwRenderViewExt() {
// TODO(leandrogracia): enable once the feature is available in RenderView.
//render_view()->SetCapturePictureCallback(
// content::RenderView::CapturePictureCallback());
RendererPictureMap::GetInstance()->ClearRendererPicture(routing_id());
}
// static
void AwRenderViewExt::RenderViewCreated(content::RenderView* render_view) {
new AwRenderViewExt(render_view); // |render_view| takes ownership.
}
bool AwRenderViewExt::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(AwRenderViewExt, message)
IPC_MESSAGE_HANDLER(AwViewMsg_DocumentHasImages, OnDocumentHasImagesRequest)
IPC_MESSAGE_HANDLER(AwViewMsg_DoHitTest, OnDoHitTest)
IPC_MESSAGE_HANDLER(AwViewMsg_EnableCapturePictureCallback,
OnEnableCapturePictureCallback)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void AwRenderViewExt::OnDocumentHasImagesRequest(int id) {
bool hasImages = false;
if (render_view()) {
WebKit::WebView* webview = render_view()->GetWebView();
if (webview) {
WebKit::WebVector<WebKit::WebElement> images;
webview->mainFrame()->document().images(images);
hasImages = !images.isEmpty();
}
}
Send(new AwViewHostMsg_DocumentHasImagesResponse(routing_id(), id,
hasImages));
}
bool AwRenderViewExt::allowImage(WebKit::WebFrame* frame,
bool enabled_per_settings,
const WebKit::WebURL& image_url) {
// Implementing setBlockNetworkImages, so allow local scheme images to be
// loaded.
if (enabled_per_settings)
return true;
// For compatibility, only blacklist network schemes instead of whitelisting.
const GURL url(image_url);
return !(url.SchemeIs(chrome::kHttpScheme) ||
url.SchemeIs(chrome::kHttpsScheme) ||
url.SchemeIs(chrome::kFtpScheme));
}
void AwRenderViewExt::DidCommitProvisionalLoad(WebKit::WebFrame* frame,
bool is_new_navigation) {
content::DocumentState* document_state =
content::DocumentState::FromDataSource(frame->dataSource());
if (document_state->can_load_local_resources()) {
WebKit::WebSecurityOrigin origin = frame->document().securityOrigin();
origin.grantLoadLocalResources();
}
}
void AwRenderViewExt::FocusedNodeChanged(const WebKit::WebNode& node) {
if (!node.isNull()) {
if (node.isTextNode() && node.isContentEditable()) {
AwHitTestData data;
data.type = AwHitTestData::EDIT_TEXT_TYPE;
Send(new AwViewHostMsg_UpdateHitTestData(
routing_id(), data));
} else {
// TODO(boliu): Implement this path.
NOTIMPLEMENTED() << "Tab focused links not implemented";
}
}
}
void AwRenderViewExt::OnDoHitTest(int view_x, int view_y) {
if (!render_view() || !render_view()->GetWebView())
return;
const WebKit::WebHitTestResult result =
render_view()->GetWebView()->hitTestResultAt(
WebKit::WebPoint(view_x, view_y));
AwHitTestData data;
// Populate fixed AwHitTestData fields.
if (result.absoluteImageURL().isValid())
data.img_src = result.absoluteImageURL();
if (!result.urlElement().isNull()) {
data.anchor_text = result.urlElement().innerText();
// href is the actual 'href' attribute, which might relative if valid or can
// possibly contain garbage otherwise, so not using absoluteLinkURL here.
data.href = result.urlElement().getAttribute("href");
}
GURL url(result.absoluteLinkURL());
bool is_javascript_scheme = url.SchemeIs(chrome::kJavaScriptScheme);
// Set AwHitTestData type and extra_data_for_type.
if (result.absoluteLinkURL().isValid() &&
!result.absoluteImageURL().isValid() &&
!is_javascript_scheme) {
if (RemovePrefixAndAssignIfMatches(
content::kAddressPrefix,
url,
&data.extra_data_for_type)) {
data.type = AwHitTestData::GEO_TYPE;
} else if (RemovePrefixAndAssignIfMatches(
content::kPhoneNumberPrefix,
url,
&data.extra_data_for_type)) {
data.type = AwHitTestData::PHONE_TYPE;
} else if (RemovePrefixAndAssignIfMatches(
content::kEmailPrefix,
url,
&data.extra_data_for_type)) {
data.type = AwHitTestData::EMAIL_TYPE;
} else {
data.type = AwHitTestData::SRC_LINK_TYPE;
data.extra_data_for_type = url.spec();
}
} else if (result.absoluteLinkURL().isValid() &&
result.absoluteImageURL().isValid() &&
!is_javascript_scheme) {
data.type = AwHitTestData::SRC_IMAGE_LINK_TYPE;
data.extra_data_for_type = data.img_src.spec();
} else if (!result.absoluteLinkURL().isValid() &&
result.absoluteImageURL().isValid()) {
data.type = AwHitTestData::IMAGE_TYPE;
data.extra_data_for_type = data.img_src.spec();
} else if (result.isContentEditable()) {
data.type = AwHitTestData::EDIT_TEXT_TYPE;
DCHECK(data.extra_data_for_type.length() == 0);
}
Send(new AwViewHostMsg_UpdateHitTestData(routing_id(), data));
}
void AwRenderViewExt::OnEnableCapturePictureCallback(bool enable) {
// TODO(leandrogracia): enable once the feature is available in RenderView.
//render_view()->SetCapturePictureCallback(enable ?
// base::Bind(&AwRenderViewExt::OnPictureUpdate, AsWeakPtr()) :
// content::RenderView::CapturePictureCallback());
}
void AwRenderViewExt::OnPictureUpdate(
scoped_refptr<cc::PicturePileImpl> picture) {
RendererPictureMap::GetInstance()->SetRendererPicture(routing_id(), picture);
Send(new AwViewHostMsg_PictureUpdated(routing_id()));
}
} // namespace android_webview
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