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webContents: defer url load when there is a pending navigation entry

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This commit is contained in:
deepak1556 2017-02-20 02:13:17 +05:30
parent e315116336
commit dead1ae1ba
3 changed files with 125 additions and 16 deletions
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99
atom/browser/api/atom_api_web_contents.cc
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@ -46,6 +46,7 @@
#include "chrome/browser/printing/print_preview_message_handler.h"
#include "chrome/browser/printing/print_view_manager_basic.h"
#include "chrome/browser/ssl/security_state_tab_helper.h"
#include "content/browser/frame_host/navigation_entry_impl.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/common/view_messages.h"
@ -54,6 +55,9 @@
#include "content/public/browser/navigation_details.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/navigation_handle.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/plugin_service.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
@ -242,6 +246,22 @@ void OnCapturePageDone(base::Callback<void(const gfx::Image&)> callback,
callback.Run(gfx::Image::CreateFrom1xBitmap(bitmap));
}
// Set the background color of RenderWidgetHostView.
void SetBackgroundColor(content::WebContents* web_contents) {
const auto view = web_contents->GetRenderWidgetHostView();
if (view) {
WebContentsPreferences* web_preferences =
WebContentsPreferences::FromWebContents(web_contents);
std::string color_name;
if (web_preferences->web_preferences()->GetString(options::kBackgroundColor,
&color_name)) {
view->SetBackgroundColor(ParseHexColor(color_name));
} else {
view->SetBackgroundColor(SK_ColorTRANSPARENT);
}
}
}
} // namespace
WebContents::WebContents(v8::Isolate* isolate,
@ -338,7 +358,7 @@ void WebContents::InitWithSessionAndOptions(v8::Isolate* isolate,
content::WebContents *web_contents,
mate::Handle<api::Session> session,
const mate::Dictionary& options) {
Observe(web_contents);
content::WebContentsObserver::Observe(web_contents);
InitWithWebContents(web_contents, session->browser_context());
managed_web_contents()->GetView()->SetDelegate(this);
@ -374,6 +394,11 @@ void WebContents::InitWithSessionAndOptions(v8::Isolate* isolate,
SetOwnerWindow(owner_window);
}
const content::NavigationController* controller =
&web_contents->GetController();
registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
content::Source<content::NavigationController>(controller));
Init(isolate);
AttachAsUserData(web_contents);
}
@ -733,6 +758,30 @@ void WebContents::DidGetRedirectForResourceRequest(
details.headers.get());
}
void WebContents::DidStartNavigation(
content::NavigationHandle* navigation_handle) {
if (!navigation_handle->IsInMainFrame() || navigation_handle->IsSamePage())
return;
if (deferred_load_url_.id) {
auto web_contents = navigation_handle->GetWebContents();
auto& controller = web_contents->GetController();
int id = controller.GetPendingEntry()->GetUniqueID();
if (id == deferred_load_url_.id) {
if (!deferred_load_url_.params.url.is_empty()) {
auto params = deferred_load_url_.params;
deferred_load_url_.id = 0;
deferred_load_url_.params =
content::NavigationController::LoadURLParams(GURL());
controller.LoadURLWithParams(params);
SetBackgroundColor(web_contents);
} else {
deferred_load_url_.id = 0;
}
}
}
}
void WebContents::DidFinishNavigation(
content::NavigationHandle* navigation_handle) {
bool is_main_frame = navigation_handle->IsInMainFrame();
@ -777,6 +826,33 @@ void WebContents::DidUpdateFaviconURL(
Emit("page-favicon-updated", unique_urls);
}
void WebContents::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
switch (type) {
case content::NOTIFICATION_NAV_ENTRY_PENDING: {
content::NavigationEntry* entry =
content::Details<content::NavigationEntry>(details).ptr();
content::NavigationEntryImpl* entry_impl =
static_cast<content::NavigationEntryImpl*>(entry);
// In NavigatorImpl::DidStartMainFrameNavigation when there is no
// browser side pending entry available it creates a new one based
// on existing pending entry, hence we track the unique id here
// instead in WebContents::LoadURL with controller.GetPendingEntry()
// TODO(deepak1556): Remove once we have
// https://codereview.chromium.org/2661743002.
if (entry_impl->is_renderer_initiated() &&
entry_impl->frame_tree_node_id() == -1) {
deferred_load_url_.id = entry->GetUniqueID();
}
break;
}
default:
NOTREACHED();
break;
}
}
void WebContents::DevToolsReloadPage() {
Emit("devtools-reload-page");
}
@ -921,23 +997,16 @@ void WebContents::LoadURL(const GURL& url, const mate::Dictionary& options) {
params.transition_type = ui::PAGE_TRANSITION_TYPED;
params.should_clear_history_list = true;
params.override_user_agent = content::NavigationController::UA_OVERRIDE_TRUE;
web_contents()->GetController().LoadURLWithParams(params);
// Set the background color of RenderWidgetHostView.
if (deferred_load_url_.id) {
deferred_load_url_.params = params;
return;
}
web_contents()->GetController().LoadURLWithParams(params);
// We have to call it right after LoadURL because the RenderViewHost is only
// created after loading a page.
const auto view = web_contents()->GetRenderWidgetHostView();
if (view) {
WebContentsPreferences* web_preferences =
WebContentsPreferences::FromWebContents(web_contents());
std::string color_name;
if (web_preferences->web_preferences()->GetString(options::kBackgroundColor,
&color_name)) {
view->SetBackgroundColor(ParseHexColor(color_name));
} else {
view->SetBackgroundColor(SK_ColorTRANSPARENT);
}
}
SetBackgroundColor(web_contents());
}
void WebContents::DownloadURL(const GURL& url) {