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https://bitbucket.org/chromiumembedded/cef
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72 lines
2.4 KiB
C++
72 lines
2.4 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "libcef/renderer/extensions/print_web_view_helper_delegate.h"
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#include <vector>
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#include "chrome/common/chrome_switches.h"
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#include "chrome/common/extensions/extension_constants.h"
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#include "content/public/renderer/render_frame.h"
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#include "content/public/renderer/render_view.h"
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#include "extensions/common/constants.h"
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#include "extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.h"
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#include "third_party/WebKit/public/web/WebDocument.h"
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#include "third_party/WebKit/public/web/WebElement.h"
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#include "third_party/WebKit/public/web/WebLocalFrame.h"
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namespace extensions {
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CefPrintWebViewHelperDelegate::~CefPrintWebViewHelperDelegate(){
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}
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bool CefPrintWebViewHelperDelegate::CancelPrerender(
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content::RenderView* render_view, int routing_id) {
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return false;
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}
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// Return the PDF object element if |frame| is the out of process PDF extension.
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blink::WebElement CefPrintWebViewHelperDelegate::GetPdfElement(
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blink::WebLocalFrame* frame) {
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GURL url = frame->document().url();
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if (url.SchemeIs(extensions::kExtensionScheme) &&
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url.host() == extension_misc::kPdfExtensionId) {
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// <object> with id="plugin" is created in
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// chrome/browser/resources/pdf/pdf.js.
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auto plugin_element = frame->document().getElementById("plugin");
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if (!plugin_element.isNull()) {
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return plugin_element;
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}
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NOTREACHED();
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}
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return blink::WebElement();
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}
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bool CefPrintWebViewHelperDelegate::IsPrintPreviewEnabled() {
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return false;
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}
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bool CefPrintWebViewHelperDelegate::OverridePrint(
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blink::WebLocalFrame* frame) {
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if (!frame->document().isPluginDocument())
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return false;
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std::vector<extensions::MimeHandlerViewContainer*> mime_handlers =
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extensions::MimeHandlerViewContainer::FromRenderFrame(
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content::RenderFrame::FromWebFrame(frame));
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if (!mime_handlers.empty()) {
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// This message is handled in chrome/browser/resources/pdf/pdf.js and
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// instructs the PDF plugin to print. This is to make window.print() on a
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// PDF plugin document correctly print the PDF. See
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// https://crbug.com/448720.
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base::DictionaryValue message;
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message.SetString("type", "print");
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mime_handlers.front()->PostMessageFromValue(message);
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return true;
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}
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return false;
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}
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} // namespace extensions
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