Import Qt5x2 branch of QtWebkit for Qt 5.2

Importing a new snapshot of webkit.

Change-Id: I2d01ad12cdc8af8cb015387641120a9d7ea5f10c
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@digia.com>

1 files changed, 515 insertions, 0 deletions

diff --git a/Source/WebInspectorUI/UserInterface/JavaScriptLogViewController.js b/Source/WebInspectorUI/UserInterface/JavaScriptLogViewController.js
new file mode 100644
index 000000000..edc4cf2dc
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/JavaScriptLogViewController.js
@@ -0,0 +1,515 @@
+/*
+ * Copyright (C) 2013 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.JavaScriptLogViewController = function(element, scrollElement, textPrompt, delegate, historySettingIdentifier)
+{
+    WebInspector.Object.call(this);
+
+    console.assert(textPrompt instanceof WebInspector.ConsolePrompt);
+    console.assert(historySettingIdentifier);
+
+    this._element = element;
+    this._scrollElement = scrollElement;
+
+    this._promptHistorySetting = new WebInspector.Setting(historySettingIdentifier, null);
+
+    this._prompt = textPrompt;
+    this._prompt.delegate = this;
+    this._prompt.history = this._promptHistorySetting.value;
+
+    this.delegate = delegate;
+
+    this._cleared = true;
+    this._previousMessage = null;
+    this._repeatCountWasInterrupted = false;
+
+    this._topConsoleGroups = [];
+
+    this.messagesClearKeyboardShortcut = new WebInspector.KeyboardShortcut(WebInspector.KeyboardShortcut.Modifier.Command, "K", this._handleClearShortcut.bind(this));
+    this.messagesAlternateClearKeyboardShortcut = new WebInspector.KeyboardShortcut(WebInspector.KeyboardShortcut.Modifier.Control, "L", this._handleClearShortcut.bind(this), this._element);
+
+    this._messagesFindKeyboardShortcut = new WebInspector.KeyboardShortcut(WebInspector.KeyboardShortcut.Modifier.Command, "F", this._handleFindShortcut.bind(this), this._element);
+    this._messagesFindNextKeyboardShortcut = new WebInspector.KeyboardShortcut(WebInspector.KeyboardShortcut.Modifier.Command, "G", this._handleFindNextShortcut.bind(this), this._element);
+    this._messagesFindPreviousKeyboardShortcut = new WebInspector.KeyboardShortcut(WebInspector.KeyboardShortcut.Modifier.Command | WebInspector.KeyboardShortcut.Modifier.Shift, "G", this._handleFindPreviousShortcut.bind(this), this._element);
+
+    this._promptAlternateClearKeyboardShortcut = new WebInspector.KeyboardShortcut(WebInspector.KeyboardShortcut.Modifier.Control, "L", this._handleClearShortcut.bind(this), this._prompt.element);
+    this._promptFindKeyboardShortcut = new WebInspector.KeyboardShortcut(WebInspector.KeyboardShortcut.Modifier.Command, "F", this._handleFindShortcut.bind(this), this._prompt.element);
+    this._promptFindNextKeyboardShortcut = new WebInspector.KeyboardShortcut(WebInspector.KeyboardShortcut.Modifier.Command, "G", this._handleFindNextShortcut.bind(this), this._prompt.element);
+    this._promptFindPreviousKeyboardShortcut = new WebInspector.KeyboardShortcut(WebInspector.KeyboardShortcut.Modifier.Command | WebInspector.KeyboardShortcut.Modifier.Shift, "G", this._handleFindPreviousShortcut.bind(this), this._prompt.element);
+
+    WebInspector.debuggerManager.addEventListener(WebInspector.DebuggerManager.Event.ActiveCallFrameDidChange, this._clearLastProperties, this);
+
+    this.startNewSession();
+};
+
+WebInspector.JavaScriptLogViewController.CachedPropertiesDuration = 30000;
+
+WebInspector.JavaScriptLogViewController.prototype = {
+    constructor: WebInspector.JavaScriptLogViewController,
+
+    // Public
+
+    get prompt()
+    {
+        return this._prompt;
+    },
+
+    get topConsoleGroup()
+    {
+        return this._topConsoleGroup;
+    },
+
+    get currentConsoleGroup()
+    {
+        return this._currentConsoleGroup;
+    },
+
+    clear: function()
+    {
+        this._cleared = true;
+
+        this.startNewSession(true);
+
+        this.prompt.focus();
+
+        if (this.delegate && typeof this.delegate.didClearMessages === "function")
+            this.delegate.didClearMessages();
+    },
+
+    startNewSession: function(clearPreviousSessions)
+    {
+        if (this._topConsoleGroups.length && clearPreviousSessions) {
+            for (var i = 0; i < this._topConsoleGroups.length; ++i)
+                this._element.removeChild(this._topConsoleGroups[i].element);
+
+            this._topConsoleGroups = [];
+            this._topConsoleGroup = null;
+            this._currentConsoleGroup = null;
+        }
+
+        // Reuse the top group if it has no messages.
+        if (this._topConsoleGroup && !this._topConsoleGroup.hasMessages()) {
+            // Make sure the session is visible.
+            this._topConsoleGroup.element.scrollIntoView();
+            return;
+        }
+
+        var hasPreviousSession = !!this._topConsoleGroup;
+        var consoleGroup = new WebInspector.ConsoleGroup(null, hasPreviousSession);
+
+        this._previousMessage = null;
+        this._repeatCountWasInterrupted = false;
+
+        this._topConsoleGroups.push(consoleGroup);
+        this._topConsoleGroup = consoleGroup;
+        this._currentConsoleGroup = consoleGroup;
+
+        this._element.appendChild(consoleGroup.element);
+
+        // Make sure the new session is visible.
+        consoleGroup.element.scrollIntoView();
+    },
+
+    appendConsoleMessage: function(consoleMessage)
+    {
+        // Clone the message since there might be multiple clients using the message,
+        // and since the message has a DOM element it can't be two places at once.
+        var messageClone = consoleMessage.clone();
+
+        this._appendConsoleMessage(messageClone);
+
+        return messageClone;
+    },
+
+    updatePreviousMessageRepeatCount: function(count)
+    {
+        console.assert(this._previousMessage);
+        if (!this._previousMessage)
+            return;
+
+        if (!this._repeatCountWasInterrupted) {
+            this._previousMessage.repeatCount = count - (this._previousMessage.ignoredCount || 0);
+            this._previousMessage.updateRepeatCount();
+        } else {
+            var newMessage = this._previousMessage.clone();
+
+            // If this message is repeated after being cloned, messageRepeatCountUpdated will be called with a
+            // count that includes the count of this message before cloning. We should ignore instances of this
+            // log that occurred before we cloned, so set a property on the message with the number of previous
+            // instances of this log that we should ignore.
+            newMessage.ignoredCount = newMessage.repeatCount + (this._previousMessage.ignoredCount || 0);
+            newMessage.repeatCount = 1;
+
+            this._appendConsoleMessage(newMessage);
+        }
+    },
+
+    isScrolledToBottom: function()
+    {
+        // Lie about being scrolled to the bottom if we have a pending request to scroll to the bottom soon.
+        return this._scrollToBottomTimeout || this._scrollElement.isScrolledToBottom();
+    },
+
+    scrollToBottom: function()
+    {
+        if (this._scrollToBottomTimeout)
+            return;
+
+        function delayedWork()
+        {
+            this._scrollToBottomTimeout = null;
+            this._scrollElement.scrollTop = this._scrollElement.scrollHeight;
+        }
+
+        // Don't scroll immediately so we are not causing excessive layouts when there
+        // are many messages being added at once.
+        this._scrollToBottomTimeout = setTimeout(delayedWork.bind(this), 0);
+    },
+
+    // Protected
+
+    consolePromptHistoryDidChange: function(prompt)
+    {
+        this._promptHistorySetting.value = this.prompt.history;
+    },
+
+    consolePromptShouldCommitText: function(prompt, text, cursorIsAtLastPosition, handler)
+    {
+        // Always commit the text if we are not at the last position.
+        if (!cursorIsAtLastPosition) {
+            handler(true);
+            return;
+        }
+
+        // COMPATIBILITY (iOS 6): RuntimeAgent.parse did not exist in iOS 6. Always commit.
+        if (!RuntimeAgent.parse) {
+            handler(true);
+            return;
+        }
+
+        function parseFinished(error, result, message, range)
+        {
+            handler(result !== RuntimeAgent.SyntaxErrorType.Recoverable);
+        }
+
+        RuntimeAgent.parse(text, parseFinished.bind(this));
+    },
+
+    consolePromptTextCommitted: function(prompt, text)
+    {
+        console.assert(text);
+
+        var commandMessage = new WebInspector.ConsoleCommand(text);
+        this._appendConsoleMessage(commandMessage, true);
+
+        function printResult(result, wasThrown)
+        {
+            if (!result || this._cleared)
+                return;
+
+            this._appendConsoleMessage(new WebInspector.ConsoleCommandResult(result, wasThrown, commandMessage), true);
+        }
+
+        this._evaluateInInspectedWindow(text, "console", true, true, false, printResult.bind(this));
+    },
+
+    consolePromptCompletionsNeeded: function(prompt, defaultCompletions, base, prefix, suffix, forced)
+    {
+        // Don't allow non-forced empty prefix completions unless the base is that start of property access.
+        if (!forced && !prefix && !/[.[]$/.test(base)) {
+            prompt.updateCompletions(null);
+            return;
+        }
+
+        // If the base ends with an open parentheses or open curly bracket then treat it like there is
+        // no base so we get global object completions.
+        if (/[({]$/.test(base))
+            base = "";
+
+        var lastBaseIndex = base.length - 1;
+        var dotNotation = base[lastBaseIndex] === ".";
+        var bracketNotation = base[lastBaseIndex] === "[";
+
+        if (dotNotation || bracketNotation) {
+            base = base.substring(0, lastBaseIndex);
+
+            // Don't suggest anything for an empty base that is using dot notation.
+            // Bracket notation with an empty base will be treated as an array.
+            if (!base && dotNotation) {
+                prompt.updateCompletions(defaultCompletions);
+                return;
+            }
+
+            // Don't allow non-forced empty prefix completions if the user is entering a number, since it might be a float.
+            // But allow number completions if the base already has a decimal, so "10.0." will suggest Number properties.
+            if (!forced && !prefix && dotNotation && base.indexOf(".") === -1 && parseInt(base, 10) == base) {
+                prompt.updateCompletions(null);
+                return;
+            }
+
+            // An empty base with bracket notation is not property access, it is an array.
+            // Clear the bracketNotation flag so completions are not quoted.
+            if (!base && bracketNotation)
+                bracketNotation = false;
+        }
+
+        // If the base is the same as the last time, we can reuse the property names we have already gathered.
+        // Doing this eliminates delay caused by the async nature of the code below and it only calls getters
+        // and functions once instead of repetitively. Sure, there can be difference each time the base is evaluated,
+        // but this optimization gives us more of a win. We clear the cache after 30 seconds or when stepping in the
+        // debugger to make sure we don't use stale properties in most cases.
+        if (this._lastBase === base && this._lastPropertyNames) {
+            receivedPropertyNames.call(this, this._lastPropertyNames);
+            return;
+        }
+
+        this._lastBase = base;
+        this._lastPropertyNames = null;
+
+        var activeCallFrame = WebInspector.debuggerManager.activeCallFrame;
+        if (!base && activeCallFrame)
+            activeCallFrame.collectScopeChainVariableNames(receivedPropertyNames.bind(this));
+        else
+            this._evaluateInInspectedWindow(base, "completion", true, true, false, evaluated.bind(this));
+
+        function updateLastPropertyNames(propertyNames)
+        {
+            if (this._clearLastPropertiesTimeout)
+                clearTimeout(this._clearLastPropertiesTimeout);
+            this._clearLastPropertiesTimeout = setTimeout(this._clearLastProperties.bind(this), WebInspector.JavaScriptLogViewController.CachedPropertiesDuration);
+
+            this._lastPropertyNames = propertyNames || {};
+        }
+
+        function evaluated(result, wasThrown)
+        {
+            if (wasThrown || !result || result.type === "undefined" || (result.type === "object" && result.subtype === "null")) {
+                RuntimeAgent.releaseObjectGroup("completion");
+
+                updateLastPropertyNames.call(this, {});
+                prompt.updateCompletions(defaultCompletions);
+
+                return;
+            }
+
+            function getCompletions(primitiveType)
+            {
+                var object;
+                if (primitiveType === "string")
+                    object = new String("");
+                else if (primitiveType === "number")
+                    object = new Number(0);
+                else if (primitiveType === "boolean")
+                    object = new Boolean(false);
+                else
+                    object = this;
+
+                var resultSet = {};
+                for (var o = object; o; o = o.__proto__) {
+                    try {
+                        var names = Object.getOwnPropertyNames(o);
+                        for (var i = 0; i < names.length; ++i)
+                            resultSet[names[i]] = true;
+                    } catch (e) {
+                        // Ignore
+                    }
+                }
+
+                return resultSet;
+            }
+
+            if (result.type === "object" || result.type === "function")
+                result.callFunctionJSON(getCompletions, undefined, receivedPropertyNames.bind(this));
+            else if (result.type === "string" || result.type === "number" || result.type === "boolean")
+                this._evaluateInInspectedWindow("(" + getCompletions + ")(\"" + result.type + "\")", "completion", false, true, true, receivedPropertyNamesFromEvaluate.bind(this));
+            else
+                console.error("Unknown result type: " + result.type);
+        }
+
+        function receivedPropertyNamesFromEvaluate(object, wasThrown, result)
+        {
+            receivedPropertyNames.call(this, result && !wasThrown ? result.value : null);
+        }
+
+        function receivedPropertyNames(propertyNames)
+        {
+            propertyNames = propertyNames || {};
+
+            updateLastPropertyNames.call(this, propertyNames);
+
+            RuntimeAgent.releaseObjectGroup("completion");
+
+            if (!base) {
+                const commandLineAPI = ["$", "$$", "$x", "dir", "dirxml", "keys", "values", "profile", "profileEnd", "monitorEvents", "unmonitorEvents", "inspect", "copy", "clear", "getEventListeners", "$0", "$1", "$2", "$3", "$4", "$_"];
+                for (var i = 0; i < commandLineAPI.length; ++i)
+                    propertyNames[commandLineAPI[i]] = true;
+            }
+
+            propertyNames = Object.keys(propertyNames);
+
+            var implicitSuffix = "";
+            if (bracketNotation) {
+                var quoteUsed = prefix[0] === "'" ? "'" : "\"";
+                if (suffix !== "]" && suffix !== quoteUsed)
+                    implicitSuffix = "]";
+            }
+
+            var completions = defaultCompletions;
+            var knownCompletions = completions.keySet();
+
+            for (var i = 0; i < propertyNames.length; ++i) {
+                var property = propertyNames[i];
+
+                if (dotNotation && !/^[a-zA-Z_$][a-zA-Z0-9_$]*$/.test(property))
+                    continue;
+
+                if (bracketNotation) {
+                    if (parseInt(property) != property)
+                        property = quoteUsed + property.escapeCharacters(quoteUsed + "\\") + (suffix !== quoteUsed ? quoteUsed : "");
+                }
+
+                if (!property.startsWith(prefix) || property in knownCompletions)
+                    continue;
+
+                completions.push(property);
+                knownCompletions[property] = true;
+            }
+
+            function compare(a, b)
+            {
+                // Try to sort in numerical order first.
+                var numericCompareResult = a - b;
+                if (!isNaN(numericCompareResult))
+                    return numericCompareResult;
+
+                // Not numbers, sort as strings.
+                return a.localeCompare(b);
+            }
+
+            completions.sort(compare);
+
+            prompt.updateCompletions(completions, implicitSuffix);
+        }
+    },
+
+    // Private
+
+    _clearLastProperties: function()
+    {
+        if (this._clearLastPropertiesTimeout) {
+            clearTimeout(this._clearLastPropertiesTimeout);
+            delete this._clearLastPropertiesTimeout;
+        }
+
+        // Clear the cache of property names so any changes while stepping or sitting idle get picked up if the same
+        // expression is evaluated again.
+        this._lastPropertyNames = null;
+    },
+
+    _evaluateInInspectedWindow: function(expression, objectGroup, includeCommandLineAPI, doNotPauseOnExceptionsAndMuteConsole, returnByValue, callback)
+    {
+        if (!expression) {
+            // There is no expression, so the completion should happen against global properties.
+            expression = "this";
+        }
+
+        function evalCallback(error, result, wasThrown)
+        {
+            if (error) {
+                console.error(error);
+                callback(null, false);
+                return;
+            }
+
+            if (returnByValue)
+                callback(null, wasThrown, wasThrown ? null : result);
+            else
+                callback(WebInspector.RemoteObject.fromPayload(result), wasThrown);
+        }
+
+        if (WebInspector.debuggerManager.activeCallFrame) {
+            DebuggerAgent.evaluateOnCallFrame(WebInspector.debuggerManager.activeCallFrame.id, expression, objectGroup, includeCommandLineAPI, doNotPauseOnExceptionsAndMuteConsole, returnByValue, evalCallback);
+            return;
+        }
+
+        // COMPATIBILITY (iOS 6): Execution context identifiers (contextId) did not exist
+        // in iOS 6. Fallback to including the frame identifier (frameId).
+        var contextId = WebInspector.quickConsole.executionContextIdentifier;
+        RuntimeAgent.evaluate.invoke({expression: expression, objectGroup: objectGroup, includeCommandLineAPI: includeCommandLineAPI, doNotPauseOnExceptionsAndMuteConsole: doNotPauseOnExceptionsAndMuteConsole, contextId: contextId, frameId: contextId, returnByValue: returnByValue}, evalCallback);
+    },
+
+    _handleClearShortcut: function()
+    {
+        this.clear();
+    },
+
+    _handleFindShortcut: function()
+    {
+        this.delegate.focusSearchBar();
+    },
+
+    _handleFindNextShortcut: function()
+    {
+        this.delegate.highlightNextSearchMatch();
+    },
+
+    _handleFindPreviousShortcut: function()
+    {
+        this.delegate.highlightPreviousSearchMatch();
+    },
+
+    _appendConsoleMessage: function(msg, repeatCountWasInterrupted)
+    {
+        var wasScrolledToBottom = this.isScrolledToBottom();
+
+        this._cleared = false;
+        this._repeatCountWasInterrupted = repeatCountWasInterrupted || false;
+
+        if (!repeatCountWasInterrupted)
+            this._previousMessage = msg;
+
+        if (msg.type === WebInspector.ConsoleMessage.MessageType.EndGroup) {
+            var parentGroup = this._currentConsoleGroup.parentGroup;
+            if (parentGroup)
+                this._currentConsoleGroup = parentGroup;
+        } else {
+            if (msg.type === WebInspector.ConsoleMessage.MessageType.StartGroup || msg.type === WebInspector.ConsoleMessage.MessageType.StartGroupCollapsed) {
+                var group = new WebInspector.ConsoleGroup(this._currentConsoleGroup);
+                this._currentConsoleGroup.messagesElement.appendChild(group.element);
+                this._currentConsoleGroup = group;
+            }
+
+            this._currentConsoleGroup.addMessage(msg);
+        }
+
+        if (msg.type === WebInspector.ConsoleMessage.MessageType.Result || wasScrolledToBottom)
+            this.scrollToBottom();
+
+        if (this.delegate && typeof this.delegate.didAppendConsoleMessage === "function")
+            this.delegate.didAppendConsoleMessage(msg);
+    }
+};
+
+WebInspector.JavaScriptLogViewController.prototype.__proto__ = WebInspector.Object.prototype;