devtools: introduce ability to subscribe/unsubscribe debugger events

binaryage · Sep 1, 2016 · 1cb0a0c · 1cb0a0c
1 parent 75065e3
commit 1cb0a0c
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Showing 3 changed files with 52 additions and 0 deletions.
diff --git a/resources/unpacked/devtools/front_end/dirac/dirac.js b/resources/unpacked/devtools/front_end/dirac/dirac.js
@@ -158,6 +158,14 @@ Object.assign(window.dirac, (function() {
         return loadLazyDirac().then(() => window.dirac.hasDefaultContext(...args));
     }
 
+    function subscribeDebuggerEvents(...args) {
+        return loadLazyDirac().then(() => window.dirac.subscribeDebuggerEvents(...args));
+    }
+
+    function unsubscribeDebuggerEvents(...args) {
+        return loadLazyDirac().then(() => window.dirac.unsubscribeDebuggerEvents(...args));
+    }
+
     function addConsoleMessageToMainTarget(...args) {
         return loadLazyDirac().then(() => window.dirac.addConsoleMessageToMainTarget(...args));
     }
@@ -199,6 +207,8 @@ Object.assign(window.dirac, (function() {
         hasCurrentContext: hasCurrentContext,
         evalInDefaultContext: evalInDefaultContext,
         hasDefaultContext: hasDefaultContext,
+        subscribeDebuggerEvents: subscribeDebuggerEvents,
+        unsubscribeDebuggerEvents: unsubscribeDebuggerEvents,
         addConsoleMessageToMainTarget: addConsoleMessageToMainTarget,
         startListeningForWorkspaceChanges: startListeningForWorkspaceChanges,
         stopListeningForWorkspaceChanges: stopListeningForWorkspaceChanges,

diff --git a/resources/unpacked/devtools/front_end/dirac_lazy/dirac_lazy.js b/resources/unpacked/devtools/front_end/dirac_lazy/dirac_lazy.js
@@ -100,6 +100,36 @@ Object.assign(window.dirac, (function() {
         evalInContext(lookupDefaultContext(), code, callback);
     }
 
+    let debuggerEventsUnsubscriber = null;
+
+    function subscribeDebuggerEvents(callback) {
+        if (debuggerEventsUnsubscriber) {
+            return false;
+        }
+        const globalObjectClearedHandler = (...args) => {
+            callback("GlobalObjectCleared", ...args);
+        };
+
+        WebInspector.targetManager.addModelListener(WebInspector.DebuggerModel, WebInspector.DebuggerModel.Events.GlobalObjectCleared, globalObjectClearedHandler, this);
+
+        debuggerEventsUnsubscriber = () => {
+            WebInspector.targetManager.removeModelListener(WebInspector.DebuggerModel, WebInspector.DebuggerModel.Events.GlobalObjectCleared, globalObjectClearedHandler, this);
+            return true;
+        };
+
+        return true;
+    }
+
+    function unsubscribeDebuggerEvents() {
+        if (!debuggerEventsUnsubscriber) {
+            return false;
+        }
+
+        const res = debuggerEventsUnsubscriber();
+        debuggerEventsUnsubscriber = null;
+        return res;
+    }
+
     // --- console ----------------------------------------------------------------------------------------------------------
 
     function addConsoleMessageToMainTarget(level, text, parameters) {
@@ -771,6 +801,8 @@ Object.assign(window.dirac, (function() {
         hasCurrentContext: hasCurrentContext,
         evalInDefaultContext: evalInDefaultContext,
         hasDefaultContext: hasDefaultContext,
+        subscribeDebuggerEvents: subscribeDebuggerEvents,
+        unsubscribeDebuggerEvents: unsubscribeDebuggerEvents,
         addConsoleMessageToMainTarget: addConsoleMessageToMainTarget,
         startListeningForWorkspaceChanges: startListeningForWorkspaceChanges,
         stopListeningForWorkspaceChanges: stopListeningForWorkspaceChanges,

diff --git a/resources/unpacked/devtools/front_end/externs.js b/resources/unpacked/devtools/front_end/externs.js
@@ -401,6 +401,16 @@ var dirac = {
     */
     hasDefaultContext: function() {},
 
+    /**
+     * @param {?} callback
+     * @return {boolean}
+     */
+    subscribeDebuggerEvents: function(callback) {},
+    /**
+     * @return {boolean}
+     */
+    unsubscribeDebuggerEvents: function() {},
+
     /**
     * @param {?} callFrame
     * @return {!Promise<!dirac.ScopeInfo>}