commit de658ff7e3f779e49cd0675171c366babec80a49
author yurys@chromium.org <yurys@chromium.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Wed Oct 23 20:16:00 2019 +0000
committer yurys@chromium.org <yurys@chromium.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Wed Oct 23 20:16:00 2019 +0000
tree 367312d0379441704900bc15499eb8e2ce280c5f
parent 81a0d964f248170ecfa16a9223365571e8b30d1b

Web Inspector: notify inspector when provisional page is created, committed and destroyed
https://bugs.webkit.org/show_bug.cgi?id=202704

Reviewed by Devin Rousso.

Source/JavaScriptCore:

* inspector/InspectorTarget.h: changed InspectorTarget to not require FrontendChannel as
all messages are routed by means of the owning InspectorTargetAgent.
* inspector/agents/InspectorTargetAgent.cpp:
(Inspector::InspectorTargetAgent::InspectorTargetAgent):
(Inspector::buildTargetInfoObject):
(Inspector::InspectorTargetAgent::targetCreated):
(Inspector::InspectorTargetAgent::targetDestroyed):
(Inspector::InspectorTargetAgent::didCommitProvisionalTarget): this method is used to
notify frontend that corresponding provisional target has committed and replaced previous
target.
(Inspector::InspectorTargetAgent::connectionType const):
(Inspector::InspectorTargetAgent::connectToTargets):
(Inspector::InspectorTargetAgent::disconnectFromTargets):
* inspector/agents/InspectorTargetAgent.h:
* inspector/protocol/Target.json: extended TargetInfo with provisional page details and
added event which is fired when provisional page gets committed. If provisional
load fails there will be targetDestroyed event without corresponding commit.

Source/WebCore:

Test: http/tests/inspector/target/target-events-for-proisional-page.html

* inspector/InspectorController.cpp:
(WebCore::InspectorController::setIsUnderTest): This method may be called several times
when reloading inspected page with opened frontend so the assumption that there are no
connected frontends when this method is called from tests doesn't hold anymore.

Source/WebInspectorUI:

Updated frontend code to understand provisional targets. For now there are
no changes frontend behavior, it will wait for the provisional target to commit
and will not send any commands to it before that.

* UserInterface/Base/Main.js: Moved a bunch of methods shared between Main.js and Test.js
to TargetManager.js to keep them in sync.
* UserInterface/Controllers/TargetManager.js:
(WI.TargetManager):
(WI.TargetManager.prototype.removeTarget):
(WI.TargetManager.prototype.createMultiplexingBackendTarget):
(WI.TargetManager.prototype.createDirectBackendTarget):
(WI.TargetManager.prototype.targetCreated):
(WI.TargetManager.prototype.didCommitProvisionalTarget):
(WI.TargetManager.prototype.targetDestroyed):
(WI.TargetManager.prototype.dispatchMessageFromTarget):
(WI.TargetManager.prototype._checkAndHandlePageTargetTransition):
(WI.TargetManager.prototype._checkAndHandlePageTargetTermination):
(WI.TargetManager.prototype._initializeBackendTarget):
(WI.TargetManager.prototype._initializePageTarget):
(WI.TargetManager.prototype._transitionPageTarget):
(WI.TargetManager.prototype._terminatePageTarget):
(WI.TargetManager.prototype._resetMainExecutionContext):
(WI.TargetManager.prototype._redirectGlobalAgentsToConnection):
* UserInterface/Protocol/Connection.js:
(InspectorBackend.WorkerConnection.sendMessageToBackend):
(InspectorBackend.WorkerConnection):
(InspectorBackend.TargetConnection.sendMessageToBackend):
(InspectorBackend.TargetConnection):
* UserInterface/Protocol/Target.js:
(WI.Target.prototype.destroy): Mark target as destroyed to distinguish expected command errors from
genuine failures.

(WI.Target.prototype.isDestroyed):
* UserInterface/Protocol/TargetObserver.js: Since the front-end doesn't
send commands to the provisional targets yet, it has to ignore all activities
related to provisional pages. For that reason we need two sets to keep track of
- provisional pages that were destroyed and never committed
- old pages which were replaced by committed page and for which following targetDestroyed
event should be ignored
Better support for provisional targets will be added to frontend in a separate change.
(WI.TargetObserver):
(WI.TargetObserver.prototype.targetCreated):
(WI.TargetObserver.prototype.didCommitProvisionalTarget): For now convert the event into a subsequence
of targetDestroyed/targetCreated events which matches previous behavior.

(WI.TargetObserver.prototype.targetDestroyed):
(WI.TargetObserver.prototype.dispatchMessageFromTarget):
* UserInterface/Test/Test.js:
(WI.transitionPageTarget):
(WI.terminatePageTarget):

Source/WebKit:

Target.targetCreated event is now generated for provisional pages as well as for regular
ones. This is the first step toward reattaching inspector earlier during PSON. In the future
if debugging is in progress the provisional target (page) will be paused until a signal from
inspector frontend. This will enable the frontend configure all agents before navigation starts.

* Sources.txt:
* UIProcess/API/APIWebAuthenticationPanel.cpp:
(API::WebAuthenticationPanel::WebAuthenticationPanel): Added explicit namespace specifier
to the constructor's argument as otherwise compilation fails due to conflict between API::String
and WTF::String.

* UIProcess/InspectorTargetProxy.cpp:
(WebKit::InspectorTargetProxy::create):
(WebKit::InspectorTargetProxy::connect):
(WebKit::InspectorTargetProxy::disconnect):
(WebKit::InspectorTargetProxy::sendMessageToTargetBackend):
(WebKit::InspectorTargetProxy::didCommitProvisionalTarget):
(WebKit::InspectorTargetProxy::isProvisional const):
(WebKit::InspectorTargetProxy::previousTargetID const):
* UIProcess/InspectorTargetProxy.h: Target proxy can start as a provisional target (with a pointer to
ProvisionalPageProxy) and later either be committed or destroyed.

* UIProcess/ProvisionalPageProxy.cpp:
(WebKit::ProvisionalPageProxy::ProvisionalPageProxy):
(WebKit::ProvisionalPageProxy::~ProvisionalPageProxy):
(WebKit::ProvisionalPageProxy::didReceiveMessage): Forward inspector messages to parent page's WebPageInspectorController.
Since each WebPage has a unique identifier the target ids will be globally unique and there is no risk of collisions.

* UIProcess/ProvisionalPageProxy.h:
(WebKit::ProvisionalPageProxy::page const):
* UIProcess/WebPageInspectorController.cpp:
(WebKit::getTargetID):
(WebKit::WebPageInspectorController::WebPageInspectorController):
(WebKit::WebPageInspectorController::clearTargets):
(WebKit::WebPageInspectorController::createInspectorTarget):
(WebKit::WebPageInspectorController::destroyInspectorTarget):
(WebKit::WebPageInspectorController::didCreateProvisionalPage):
(WebKit::WebPageInspectorController::didDestroyProvisionalPage):
(WebKit::WebPageInspectorController::didCommitProvisionalPage):
(WebKit::WebPageInspectorController::addTarget):
* UIProcess/WebPageInspectorController.h:
* UIProcess/WebPageInspectorTargetAgent.cpp: Removed. Merged this agent into InspectorTargetAgent.
* UIProcess/WebPageInspectorTargetAgent.h: Removed.
* UIProcess/WebPageProxy.cpp:
(WebKit::m_resetRecentCrashCountTimer):
(WebKit::WebPageProxy::finishAttachingToWebProcess):
(WebKit::WebPageProxy::commitProvisionalPage):
* UIProcess/WebPageProxy.h: Moved the target management logic into WebPageInspectorController.
WebPageProxy/ProvisionalPageProxy are expected to notifiy it about key lifecycle events and also
forward to it messages from inspector in the inspected WebProcess. How it translates to Target
events is inspector's business.

* WebKit.xcodeproj/project.pbxproj:
* WebProcess/WebPage/WebPageInspectorTarget.cpp:
(WebKit::WebPageInspectorTarget::identifier const):
(WebKit::WebPageInspectorTarget::connect):
(WebKit::WebPageInspectorTarget::disconnect):
(WebKit::WebPageInspectorTarget::toTargetID):
* WebProcess/WebPage/WebPageInspectorTarget.h: Made the target own frontend channel instance as it's the
only place where the page specific channel is used.

* WebProcess/WebPage/WebPageInspectorTargetController.cpp:
(WebKit::WebPageInspectorTargetController::removeTarget):
(WebKit::WebPageInspectorTargetController::connectInspector):
(WebKit::WebPageInspectorTargetController::disconnectInspector):
* WebProcess/WebPage/WebPageInspectorTargetController.h:
* WebProcess/WebPage/WebPageInspectorTargetFrontendChannel.cpp:
(WebKit::WebPageInspectorTargetFrontendChannel::WebPageInspectorTargetFrontendChannel):
(WebKit::WebPageInspectorTargetFrontendChannel::sendMessageToFrontend):
* WebProcess/WebPage/WebPageInspectorTargetFrontendChannel.h: The channel's lifetime is managed by owning
target. No need to reference count it.

LayoutTests:

Added new test for Target events during PSON. It is only enabled on WebKit2 as there is
no Target agent in WebKit1.

* TestExpectations:
* http/tests/inspector/target/target-events-for-provisional-page-expected.txt: Added.
* http/tests/inspector/target/target-events-for-provisional-page.html: Added.
* platform/wk2/TestExpectations:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@251494 268f45cc-cd09-0410-ab3c-d52691b4dbfc