mirror of
https://bitbucket.org/chromiumembedded/cef
synced 2024-12-13 18:16:20 +01:00
66648c2343
- Remove CefRequestContextHandler::OnBeforePluginLoad and CefRequestContext::PurgePluginListCache (fixes issue #3047). These methods stopped being relevant after the removal of Flash support in January 2021. The last remaining PPAPI plugin (PDF viewer) will switch to a non-plugin implementation in the near future (see https://crbug.com/702993#c58) and functionality related to plugin filtering has already been removed in https://crrev.com/343ae351c9.
620 lines
20 KiB
C++
620 lines
20 KiB
C++
// Copyright 2020 The Chromium Embedded Framework 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/browser/browser_contents_delegate.h"
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#include "libcef/browser/browser_host_base.h"
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#include "libcef/browser/browser_platform_delegate.h"
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#include "libcef/browser/browser_util.h"
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#include "libcef/common/frame_util.h"
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#include "content/public/browser/focused_node_details.h"
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#include "content/public/browser/keyboard_event_processing_result.h"
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#include "content/public/browser/native_web_keyboard_event.h"
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#include "content/public/browser/navigation_entry.h"
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#include "content/public/browser/navigation_handle.h"
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#include "content/public/browser/notification_details.h"
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#include "content/public/browser/notification_source.h"
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#include "content/public/browser/notification_types.h"
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#include "content/public/browser/render_view_host.h"
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#include "content/public/browser/render_widget_host.h"
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#include "content/public/browser/render_widget_host_view.h"
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#include "third_party/blink/public/mojom/favicon/favicon_url.mojom.h"
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#include "third_party/blink/public/mojom/input/focus_type.mojom-blink.h"
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using content::KeyboardEventProcessingResult;
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CefBrowserContentsDelegate::CefBrowserContentsDelegate(
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scoped_refptr<CefBrowserInfo> browser_info)
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: browser_info_(browser_info) {
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DCHECK(browser_info_->browser());
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}
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void CefBrowserContentsDelegate::ObserveWebContents(
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content::WebContents* new_contents) {
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WebContentsObserver::Observe(new_contents);
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if (new_contents) {
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registrar_.reset(new content::NotificationRegistrar);
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// When navigating through the history, the restored NavigationEntry's title
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// will be used. If the entry ends up having the same title after we return
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// to it, as will usually be the case, the
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// NOTIFICATION_WEB_CONTENTS_TITLE_UPDATED will then be suppressed, since
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// the NavigationEntry's title hasn't changed.
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registrar_->Add(this, content::NOTIFICATION_LOAD_STOP,
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content::Source<content::NavigationController>(
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&new_contents->GetController()));
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// Make sure MaybeCreateFrame is called at least one time.
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// Create the frame representation before OnAfterCreated is called for a new
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// browser.
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browser_info_->MaybeCreateFrame(new_contents->GetMainFrame(),
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false /* is_guest_view */);
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} else {
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registrar_.reset();
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}
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}
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void CefBrowserContentsDelegate::AddObserver(Observer* observer) {
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observers_.AddObserver(observer);
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}
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void CefBrowserContentsDelegate::RemoveObserver(Observer* observer) {
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observers_.RemoveObserver(observer);
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}
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// |source| may be NULL for navigations in the current tab, or if the
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// navigation originates from a guest view via MaybeAllowNavigation.
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content::WebContents* CefBrowserContentsDelegate::OpenURLFromTab(
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content::WebContents* source,
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const content::OpenURLParams& params) {
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bool cancel = false;
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if (auto c = client()) {
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if (auto handler = c->GetRequestHandler()) {
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// May return nullptr for omnibox navigations.
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auto frame = browser()->GetFrame(params.frame_tree_node_id);
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if (!frame)
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frame = browser()->GetMainFrame();
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cancel = handler->OnOpenURLFromTab(
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browser(), frame, params.url.spec(),
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static_cast<cef_window_open_disposition_t>(params.disposition),
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params.user_gesture);
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}
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}
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// Returning nullptr will cancel the navigation.
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return cancel ? nullptr : web_contents();
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}
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void CefBrowserContentsDelegate::LoadingStateChanged(
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content::WebContents* source,
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bool to_different_document) {
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const int current_index =
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source->GetController().GetLastCommittedEntryIndex();
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const int max_index = source->GetController().GetEntryCount() - 1;
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const bool is_loading = source->IsLoading();
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const bool can_go_back = (current_index > 0);
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const bool can_go_forward = (current_index < max_index);
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// This method may be called multiple times in a row with |is_loading|
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// true as a result of https://crrev.com/5e750ad0. Ignore the 2nd+ times.
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if (is_loading_ == is_loading && can_go_back_ == can_go_back &&
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can_go_forward_ == can_go_forward) {
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return;
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}
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is_loading_ = is_loading;
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can_go_back_ = can_go_back;
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can_go_forward_ = can_go_forward;
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OnStateChanged(State::kNavigation);
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if (auto c = client()) {
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if (auto handler = c->GetLoadHandler()) {
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auto navigation_lock = browser_info_->CreateNavigationLock();
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handler->OnLoadingStateChange(browser(), is_loading, can_go_back,
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can_go_forward);
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}
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}
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}
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void CefBrowserContentsDelegate::UpdateTargetURL(content::WebContents* source,
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const GURL& url) {
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if (auto c = client()) {
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if (auto handler = c->GetDisplayHandler()) {
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handler->OnStatusMessage(browser(), url.spec());
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}
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}
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}
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bool CefBrowserContentsDelegate::DidAddMessageToConsole(
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content::WebContents* source,
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blink::mojom::ConsoleMessageLevel log_level,
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const std::u16string& message,
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int32_t line_no,
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const std::u16string& source_id) {
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if (auto c = client()) {
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if (auto handler = c->GetDisplayHandler()) {
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// Use LOGSEVERITY_DEBUG for unrecognized |level| values.
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cef_log_severity_t cef_level = LOGSEVERITY_DEBUG;
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switch (log_level) {
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case blink::mojom::ConsoleMessageLevel::kVerbose:
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cef_level = LOGSEVERITY_DEBUG;
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break;
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case blink::mojom::ConsoleMessageLevel::kInfo:
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cef_level = LOGSEVERITY_INFO;
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break;
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case blink::mojom::ConsoleMessageLevel::kWarning:
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cef_level = LOGSEVERITY_WARNING;
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break;
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case blink::mojom::ConsoleMessageLevel::kError:
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cef_level = LOGSEVERITY_ERROR;
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break;
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}
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return handler->OnConsoleMessage(browser(), cef_level, message, source_id,
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line_no);
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}
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}
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return false;
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}
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void CefBrowserContentsDelegate::DidNavigatePrimaryMainFramePostCommit(
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content::WebContents* web_contents) {
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has_document_ = false;
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OnStateChanged(State::kDocument);
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}
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void CefBrowserContentsDelegate::EnterFullscreenModeForTab(
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content::RenderFrameHost* requesting_frame,
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const blink::mojom::FullscreenOptions& options) {
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OnFullscreenModeChange(/*fullscreen=*/true);
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}
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void CefBrowserContentsDelegate::ExitFullscreenModeForTab(
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content::WebContents* web_contents) {
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OnFullscreenModeChange(/*fullscreen=*/false);
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}
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KeyboardEventProcessingResult
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CefBrowserContentsDelegate::PreHandleKeyboardEvent(
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content::WebContents* source,
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const content::NativeWebKeyboardEvent& event) {
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if (auto delegate = platform_delegate()) {
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if (auto c = client()) {
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if (auto handler = c->GetKeyboardHandler()) {
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CefKeyEvent cef_event;
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if (browser_util::GetCefKeyEvent(event, cef_event)) {
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cef_event.focus_on_editable_field = focus_on_editable_field_;
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auto event_handle = delegate->GetEventHandle(event);
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bool is_keyboard_shortcut = false;
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bool result = handler->OnPreKeyEvent(
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browser(), cef_event, event_handle, &is_keyboard_shortcut);
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if (result) {
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return KeyboardEventProcessingResult::HANDLED;
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} else if (is_keyboard_shortcut) {
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return KeyboardEventProcessingResult::NOT_HANDLED_IS_SHORTCUT;
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}
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}
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}
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}
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}
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return KeyboardEventProcessingResult::NOT_HANDLED;
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}
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bool CefBrowserContentsDelegate::HandleKeyboardEvent(
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content::WebContents* source,
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const content::NativeWebKeyboardEvent& event) {
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// Check to see if event should be ignored.
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if (event.skip_in_browser)
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return false;
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if (auto delegate = platform_delegate()) {
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if (auto c = client()) {
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if (auto handler = c->GetKeyboardHandler()) {
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CefKeyEvent cef_event;
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if (browser_util::GetCefKeyEvent(event, cef_event)) {
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cef_event.focus_on_editable_field = focus_on_editable_field_;
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auto event_handle = delegate->GetEventHandle(event);
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if (handler->OnKeyEvent(browser(), cef_event, event_handle)) {
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return true;
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}
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}
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}
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}
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}
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return false;
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}
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void CefBrowserContentsDelegate::RenderFrameCreated(
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content::RenderFrameHost* render_frame_host) {
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browser_info_->MaybeCreateFrame(render_frame_host, false /* is_guest_view */);
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if (render_frame_host->GetParent() == nullptr) {
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auto render_view_host = render_frame_host->GetRenderViewHost();
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auto base_background_color = platform_delegate()->GetBackgroundColor();
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if (browser_info_ && browser_info_->is_popup()) {
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// force reset page base background color because popup window won't get
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// the page base background from web_contents at the creation time
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web_contents()->SetPageBaseBackgroundColor(SkColor());
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web_contents()->SetPageBaseBackgroundColor(base_background_color);
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}
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render_view_host->GetWidget()->GetView()->SetBackgroundColor(
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base_background_color);
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}
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}
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void CefBrowserContentsDelegate::RenderFrameHostChanged(
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content::RenderFrameHost* old_host,
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content::RenderFrameHost* new_host) {
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// Just in case RenderFrameCreated wasn't called for some reason.
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RenderFrameCreated(new_host);
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}
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void CefBrowserContentsDelegate::RenderFrameHostStateChanged(
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content::RenderFrameHost* host,
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content::RenderFrameHost::LifecycleState old_state,
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content::RenderFrameHost::LifecycleState new_state) {
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browser_info_->FrameHostStateChanged(host, old_state, new_state);
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}
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void CefBrowserContentsDelegate::RenderFrameDeleted(
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content::RenderFrameHost* render_frame_host) {
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const auto frame_id =
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frame_util::MakeFrameId(render_frame_host->GetGlobalId());
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browser_info_->RemoveFrame(render_frame_host);
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if (focused_frame_ && focused_frame_->GetIdentifier() == frame_id) {
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focused_frame_ = nullptr;
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OnStateChanged(State::kFocusedFrame);
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}
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}
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void CefBrowserContentsDelegate::RenderViewReady() {
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if (auto c = client()) {
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if (auto handler = c->GetRequestHandler()) {
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handler->OnRenderViewReady(browser());
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}
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}
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}
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void CefBrowserContentsDelegate::PrimaryMainFrameRenderProcessGone(
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base::TerminationStatus status) {
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cef_termination_status_t ts = TS_ABNORMAL_TERMINATION;
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if (status == base::TERMINATION_STATUS_PROCESS_WAS_KILLED)
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ts = TS_PROCESS_WAS_KILLED;
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else if (status == base::TERMINATION_STATUS_PROCESS_CRASHED)
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ts = TS_PROCESS_CRASHED;
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else if (status == base::TERMINATION_STATUS_OOM)
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ts = TS_PROCESS_OOM;
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else if (status != base::TERMINATION_STATUS_ABNORMAL_TERMINATION)
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return;
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if (auto c = client()) {
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if (auto handler = c->GetRequestHandler()) {
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auto navigation_lock = browser_info_->CreateNavigationLock();
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handler->OnRenderProcessTerminated(browser(), ts);
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}
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}
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}
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void CefBrowserContentsDelegate::OnFrameFocused(
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content::RenderFrameHost* render_frame_host) {
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CefRefPtr<CefFrameHostImpl> frame = static_cast<CefFrameHostImpl*>(
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browser_info_->GetFrameForHost(render_frame_host).get());
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if (!frame || frame->IsFocused())
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return;
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CefRefPtr<CefFrameHostImpl> previous_frame = focused_frame_;
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if (frame->IsMain())
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focused_frame_ = nullptr;
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else
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focused_frame_ = frame;
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if (!previous_frame) {
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// The main frame is focused by default.
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previous_frame = browser_info_->GetMainFrame();
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}
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if (previous_frame->GetIdentifier() != frame->GetIdentifier()) {
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previous_frame->SetFocused(false);
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frame->SetFocused(true);
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}
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OnStateChanged(State::kFocusedFrame);
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}
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void CefBrowserContentsDelegate::DocumentAvailableInMainFrame(
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content::RenderFrameHost* render_frame_host) {
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has_document_ = true;
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OnStateChanged(State::kDocument);
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if (auto c = client()) {
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if (auto handler = c->GetRequestHandler()) {
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handler->OnDocumentAvailableInMainFrame(browser());
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}
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}
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}
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void CefBrowserContentsDelegate::LoadProgressChanged(double progress) {
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if (auto c = client()) {
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if (auto handler = c->GetDisplayHandler()) {
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handler->OnLoadingProgressChange(browser(), progress);
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}
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}
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}
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void CefBrowserContentsDelegate::DidStopLoading() {
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// Notify all renderers that loading has stopped. We used to use
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// RenderFrameObserver::DidStopLoading in the renderer process but that was
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// removed in https://crrev.com/3e37dd0ead. However, that callback wasn't
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// necessarily accurate because it wasn't called in all of the cases where
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// RenderFrameImpl sends the FrameHostMsg_DidStopLoading message. This adds
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// an additional round trip but should provide the same or improved
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// functionality.
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for (const auto& frame : browser_info_->GetAllFrames()) {
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frame->MaybeSendDidStopLoading();
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}
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}
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void CefBrowserContentsDelegate::DidFinishNavigation(
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content::NavigationHandle* navigation_handle) {
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const net::Error error_code = navigation_handle->GetNetErrorCode();
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// Skip calls where the navigation has not yet committed and there is no
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// error code. For example, when creating a browser without loading a URL.
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if (!navigation_handle->HasCommitted() && error_code == net::OK)
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return;
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const bool is_main_frame = navigation_handle->IsInMainFrame();
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const auto global_id = frame_util::GetGlobalId(navigation_handle);
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const GURL& url =
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(error_code == net::OK ? navigation_handle->GetURL() : GURL());
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auto browser_info = browser_info_;
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if (!browser_info->browser()) {
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// Ignore notifications when the browser is closing.
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return;
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}
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// May return NULL when starting a new navigation if the previous navigation
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// caused the renderer process to crash during load.
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CefRefPtr<CefFrameHostImpl> frame =
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browser_info->GetFrameForGlobalId(global_id);
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if (!frame) {
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if (is_main_frame) {
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frame = browser_info->GetMainFrame();
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} else {
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frame = browser_info->CreateTempSubFrame(frame_util::InvalidGlobalId());
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}
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}
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frame->RefreshAttributes();
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if (error_code == net::OK) {
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// The navigation has been committed and there is no error.
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DCHECK(navigation_handle->HasCommitted());
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// Don't call OnLoadStart for same page navigations (fragments,
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// history state).
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if (!navigation_handle->IsSameDocument()) {
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OnLoadStart(frame.get(), navigation_handle->GetPageTransition());
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}
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if (is_main_frame) {
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OnAddressChange(url);
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}
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} else {
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// The navigation failed with an error. This may happen before commit
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// (e.g. network error) or after commit (e.g. response filter error).
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// If the error happened before commit then this call will originate from
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// RenderFrameHostImpl::OnDidFailProvisionalLoadWithError.
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// OnLoadStart/OnLoadEnd will not be called.
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OnLoadError(frame.get(), navigation_handle->GetURL(), error_code);
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}
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}
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void CefBrowserContentsDelegate::DidFailLoad(
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content::RenderFrameHost* render_frame_host,
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const GURL& validated_url,
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int error_code) {
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// The navigation failed after commit. OnLoadStart was called so we also
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// call OnLoadEnd.
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auto frame = browser_info_->GetFrameForHost(render_frame_host);
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frame->RefreshAttributes();
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OnLoadError(frame, validated_url, error_code);
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OnLoadEnd(frame, validated_url, error_code);
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}
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void CefBrowserContentsDelegate::TitleWasSet(content::NavigationEntry* entry) {
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// |entry| may be NULL if a popup is created via window.open and never
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// navigated.
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if (entry)
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OnTitleChange(entry->GetTitle());
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else if (web_contents())
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OnTitleChange(web_contents()->GetTitle());
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}
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void CefBrowserContentsDelegate::PluginCrashed(
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const base::FilePath& plugin_path,
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base::ProcessId plugin_pid) {
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if (auto c = client()) {
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if (auto handler = c->GetRequestHandler()) {
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handler->OnPluginCrashed(browser(), plugin_path.value());
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}
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}
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}
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void CefBrowserContentsDelegate::DidUpdateFaviconURL(
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content::RenderFrameHost* render_frame_host,
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const std::vector<blink::mojom::FaviconURLPtr>& candidates) {
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if (auto c = client()) {
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if (auto handler = c->GetDisplayHandler()) {
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std::vector<CefString> icon_urls;
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for (const auto& icon : candidates) {
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if (icon->icon_type == blink::mojom::FaviconIconType::kFavicon) {
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icon_urls.push_back(icon->icon_url.spec());
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}
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}
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if (!icon_urls.empty()) {
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handler->OnFaviconURLChange(browser(), icon_urls);
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}
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}
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}
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}
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void CefBrowserContentsDelegate::OnWebContentsFocused(
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content::RenderWidgetHost* render_widget_host) {
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if (auto c = client()) {
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if (auto handler = c->GetFocusHandler()) {
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handler->OnGotFocus(browser());
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}
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}
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}
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void CefBrowserContentsDelegate::OnFocusChangedInPage(
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content::FocusedNodeDetails* details) {
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focus_on_editable_field_ =
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details->focus_type != blink::mojom::blink::FocusType::kNone &&
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details->is_editable_node;
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}
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void CefBrowserContentsDelegate::WebContentsDestroyed() {
|
|
auto wc = web_contents();
|
|
ObserveWebContents(nullptr);
|
|
for (auto& observer : observers_) {
|
|
observer.OnWebContentsDestroyed(wc);
|
|
}
|
|
}
|
|
|
|
void CefBrowserContentsDelegate::Observe(
|
|
int type,
|
|
const content::NotificationSource& source,
|
|
const content::NotificationDetails& details) {
|
|
DCHECK_EQ(type, content::NOTIFICATION_LOAD_STOP);
|
|
|
|
if (type == content::NOTIFICATION_LOAD_STOP) {
|
|
OnTitleChange(web_contents()->GetTitle());
|
|
}
|
|
}
|
|
|
|
void CefBrowserContentsDelegate::OnLoadEnd(CefRefPtr<CefFrame> frame,
|
|
const GURL& url,
|
|
int http_status_code) {
|
|
if (auto c = client()) {
|
|
if (auto handler = c->GetLoadHandler()) {
|
|
auto navigation_lock = browser_info_->CreateNavigationLock();
|
|
handler->OnLoadEnd(browser(), frame, http_status_code);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool CefBrowserContentsDelegate::OnSetFocus(cef_focus_source_t source) {
|
|
// SetFocus() might be called while inside the OnSetFocus() callback. If
|
|
// so, don't re-enter the callback.
|
|
if (is_in_onsetfocus_)
|
|
return true;
|
|
|
|
if (auto c = client()) {
|
|
if (auto handler = c->GetFocusHandler()) {
|
|
is_in_onsetfocus_ = true;
|
|
bool handled = handler->OnSetFocus(browser(), source);
|
|
is_in_onsetfocus_ = false;
|
|
|
|
return handled;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
CefRefPtr<CefClient> CefBrowserContentsDelegate::client() const {
|
|
if (auto b = browser()) {
|
|
return b->GetHost()->GetClient();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
CefRefPtr<CefBrowser> CefBrowserContentsDelegate::browser() const {
|
|
return browser_info_->browser();
|
|
}
|
|
|
|
CefBrowserPlatformDelegate* CefBrowserContentsDelegate::platform_delegate()
|
|
const {
|
|
auto browser = browser_info_->browser();
|
|
if (browser)
|
|
return browser->platform_delegate();
|
|
return nullptr;
|
|
}
|
|
|
|
void CefBrowserContentsDelegate::OnAddressChange(const GURL& url) {
|
|
if (auto c = client()) {
|
|
if (auto handler = c->GetDisplayHandler()) {
|
|
// On the handler of an address change.
|
|
handler->OnAddressChange(browser(), browser_info_->GetMainFrame(),
|
|
url.spec());
|
|
}
|
|
}
|
|
}
|
|
|
|
void CefBrowserContentsDelegate::OnLoadStart(
|
|
CefRefPtr<CefFrame> frame,
|
|
ui::PageTransition transition_type) {
|
|
if (auto c = client()) {
|
|
if (auto handler = c->GetLoadHandler()) {
|
|
auto navigation_lock = browser_info_->CreateNavigationLock();
|
|
// On the handler that loading has started.
|
|
handler->OnLoadStart(browser(), frame,
|
|
static_cast<cef_transition_type_t>(transition_type));
|
|
}
|
|
}
|
|
}
|
|
|
|
void CefBrowserContentsDelegate::OnLoadError(CefRefPtr<CefFrame> frame,
|
|
const GURL& url,
|
|
int error_code) {
|
|
if (auto c = client()) {
|
|
if (auto handler = c->GetLoadHandler()) {
|
|
auto navigation_lock = browser_info_->CreateNavigationLock();
|
|
// On the handler that loading has failed.
|
|
handler->OnLoadError(browser(), frame,
|
|
static_cast<cef_errorcode_t>(error_code),
|
|
net::ErrorToShortString(error_code), url.spec());
|
|
}
|
|
}
|
|
}
|
|
|
|
void CefBrowserContentsDelegate::OnTitleChange(const std::u16string& title) {
|
|
if (auto c = client()) {
|
|
if (auto handler = c->GetDisplayHandler()) {
|
|
handler->OnTitleChange(browser(), title);
|
|
}
|
|
}
|
|
}
|
|
|
|
void CefBrowserContentsDelegate::OnFullscreenModeChange(bool fullscreen) {
|
|
if (fullscreen == is_fullscreen_)
|
|
return;
|
|
|
|
is_fullscreen_ = fullscreen;
|
|
OnStateChanged(State::kFullscreen);
|
|
|
|
if (auto c = client()) {
|
|
if (auto handler = c->GetDisplayHandler()) {
|
|
handler->OnFullscreenModeChange(browser(), fullscreen);
|
|
}
|
|
}
|
|
}
|
|
|
|
void CefBrowserContentsDelegate::OnStateChanged(State state_changed) {
|
|
for (auto& observer : observers_) {
|
|
observer.OnStateChanged(state_changed);
|
|
}
|
|
}
|