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fix: fetching PDF element from WebLocalFrame (#34176)

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fix: fetching PDF element from WebLocalFrame
This commit is contained in:
Shelley Vohr 2022-05-13 02:20:45 +02:00 committed by GitHub
parent a8103691ac
commit 8b5613efcb
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1 changed files with 6 additions and 16 deletions
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22
shell/renderer/printing/print_render_frame_helper_delegate.cc
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@ -10,6 +10,7 @@
#include "third_party/blink/public/web/web_local_frame.h"
#if BUILDFLAG(ENABLE_EXTENSIONS)
#include "chrome/common/pdf_util.h"
#include "extensions/common/constants.h"
#include "extensions/renderer/guest_view/mime_handler_view/post_message_support.h"
#endif // BUILDFLAG(ENABLE_EXTENSIONS)
@ -24,22 +25,11 @@ PrintRenderFrameHelperDelegate::~PrintRenderFrameHelperDelegate() = default;
blink::WebElement PrintRenderFrameHelperDelegate::GetPdfElement(
blink::WebLocalFrame* frame) {
#if BUILDFLAG(ENABLE_EXTENSIONS)
GURL url = frame->GetDocument().Url();
bool inside_pdf_extension =
url.SchemeIs(extensions::kExtensionScheme) &&
url.host_piece() == extension_misc::kPdfExtensionId;
if (inside_pdf_extension) {
// <object> with id="plugin" is created in
// chrome/browser/resources/pdf/pdf_viewer_base.js.
auto viewer_element = frame->GetDocument().GetElementById("viewer");
if (!viewer_element.IsNull() && !viewer_element.ShadowRoot().IsNull()) {
auto plugin_element =
viewer_element.ShadowRoot().QuerySelector("#plugin");
if (!plugin_element.IsNull()) {
return plugin_element;
}
}
NOTREACHED();
if (frame->Parent() &&
IsPdfInternalPluginAllowedOrigin(frame->Parent()->GetSecurityOrigin())) {
auto plugin_element = frame->GetDocument().QuerySelector("embed");
DCHECK(!plugin_element.IsNull());
return plugin_element;
}
#endif // BUILDFLAG(ENABLE_EXTENSIONS)
return blink::WebElement();