1 files changed, 155 insertions, 0 deletions
diff --git a/Source/WebInspectorUI/UserInterface/Models/DebuggerData.js b/Source/WebInspectorUI/UserInterface/Models/DebuggerData.js
new file mode 100644
index 000000000..394b8ed45
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/Models/DebuggerData.js
@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 2016 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+WebInspector.DebuggerData = class DebuggerData extends WebInspector.Object
+{
+    constructor(target)
+    {
+        super();
+
+        console.assert(target instanceof WebInspector.Target);
+
+        this._target = target;
+
+        this._paused = false;
+        this._pausing = false;
+        this._pauseReason = null;
+        this._pauseData = null;
+        this._callFrames = [];
+        this._asyncStackTrace = null;
+
+        this._scriptIdMap = new Map;
+        this._scriptContentIdentifierMap = new Map;
+
+        this._makePausingAfterNextResume = false;
+    }
+
+    // Public
+
+    get target() { return this._target; }
+    get paused() { return this._paused; }
+    get pausing() { return this._pausing; }
+    get pauseReason() { return this._pauseReason; }
+    get pauseData() { return this._pauseData; }
+    get callFrames() { return this._callFrames; }
+    get asyncStackTrace() { return this._asyncStackTrace; }
+
+    get scripts()
+    {
+        return Array.from(this._scriptIdMap.values());
+    }
+
+    scriptForIdentifier(id)
+    {
+        return this._scriptIdMap.get(id);
+    }
+
+    scriptsForURL(url)
+    {
+        return this._scriptContentIdentifierMap.get(url) || [];
+    }
+
+    // Protected (Called by DebuggerManager)
+
+    reset()
+    {
+        this._scriptIdMap.clear();
+    }
+
+    addScript(script)
+    {
+        this._scriptIdMap.set(script.id, script);
+
+        if (script.contentIdentifier) {
+            let scripts = this._scriptContentIdentifierMap.get(script.contentIdentifier);
+            if (!scripts) {
+                scripts = [];
+                this._scriptContentIdentifierMap.set(script.contentIdentifier, scripts);
+            }
+            scripts.push(script);
+        }
+    }
+
+    pauseIfNeeded()
+    {
+        if (this._paused || this._pausing)
+            return Promise.resolve();
+
+        this._pausing = true;
+
+        return this._target.DebuggerAgent.pause();
+    }
+
+    resumeIfNeeded()
+    {
+        if (!this._paused && !this._pausing)
+            return Promise.resolve();
+
+        this._pausing = false;
+
+        return this._target.DebuggerAgent.resume();
+    }
+
+    continueUntilNextRunLoop()
+    {
+        if (!this._paused || this._pausing)
+            return Promise.resolve();
+
+        // The backend will automatically start pausing
+        // after resuming, so we need to match that here.
+        this._makePausingAfterNextResume = true;
+
+        return this._target.DebuggerAgent.continueUntilNextRunLoop();
+    }
+
+    updateForPause(callFrames, pauseReason, pauseData, asyncStackTrace)
+    {
+        this._paused = true;
+        this._pausing = false;
+        this._pauseReason = pauseReason;
+        this._pauseData = pauseData;
+        this._callFrames = callFrames;
+        this._asyncStackTrace = asyncStackTrace;
+
+        // We paused, no need for auto-pausing.
+        this._makePausingAfterNextResume = false;
+    }
+
+    updateForResume()
+    {
+        this._paused = false;
+        this._pausing = false;
+        this._pauseReason = null;
+        this._pauseData = null;
+        this._callFrames = [];
+        this._asyncStackTrace = null;
+
+        // We resumed, but may be auto-pausing.
+        if (this._makePausingAfterNextResume) {
+            this._makePausingAfterNextResume = false;
+            this._pausing = true;
+        }
+    }
+};