mirror of
https://bitbucket.org/chromiumembedded/cef
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73 lines
2.5 KiB
C++
73 lines
2.5 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_render_frame_helper_delegate.h"
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#include <vector>
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#include "libcef/common/extensions/extensions_util.h"
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#include "base/command_line.h"
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#include "base/strings/string_util.h"
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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 "chrome/common/pdf_util.h"
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#include "chrome/common/url_constants.h"
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#include "content/public/renderer/render_frame.h"
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#include "extensions/common/constants.h"
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#include "extensions/renderer/guest_view/mime_handler_view/post_message_support.h"
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#include "services/service_manager/public/cpp/interface_provider.h"
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#include "third_party/blink/public/web/web_document.h"
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#include "third_party/blink/public/web/web_element.h"
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#include "third_party/blink/public/web/web_local_frame.h"
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namespace extensions {
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CefPrintRenderFrameHelperDelegate::CefPrintRenderFrameHelperDelegate(
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bool is_windowless)
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: is_windowless_(is_windowless) {}
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CefPrintRenderFrameHelperDelegate::~CefPrintRenderFrameHelperDelegate() =
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default;
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// Return the PDF object element if |frame| is the out of process PDF extension.
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blink::WebElement CefPrintRenderFrameHelperDelegate::GetPdfElement(
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blink::WebLocalFrame* frame) {
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if (frame->Parent() &&
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IsPdfInternalPluginAllowedOrigin(frame->Parent()->GetSecurityOrigin())) {
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auto plugin_element = frame->GetDocument().QuerySelector("embed");
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DCHECK(!plugin_element.IsNull());
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return plugin_element;
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}
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return blink::WebElement();
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}
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bool CefPrintRenderFrameHelperDelegate::IsPrintPreviewEnabled() {
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return !is_windowless_ && PrintPreviewEnabled();
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}
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bool CefPrintRenderFrameHelperDelegate::ShouldGenerateTaggedPDF() {
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return true;
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}
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bool CefPrintRenderFrameHelperDelegate::OverridePrint(
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blink::WebLocalFrame* frame) {
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auto* post_message_support =
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extensions::PostMessageSupport::FromWebLocalFrame(frame);
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if (post_message_support) {
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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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post_message_support->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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