webkitgtk-2.4.11webkitgtk-2.4.11

1 files changed, 229 insertions, 0 deletions

diff --git a/Source/WebInspectorUI/UserInterface/FormatterContentBuilder.js b/Source/WebInspectorUI/UserInterface/FormatterContentBuilder.js
new file mode 100644
index 000000000..72d9a1572
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/FormatterContentBuilder.js
@@ -0,0 +1,229 @@
+/*
+ * 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.
+ */
+
+function FormatterContentBuilder(mapping, originalLineEndings, formattedLineEndings, originalOffset, formattedOffset, indentString)
+{
+    this._originalContent = null;
+    this._formattedContent = [];
+    this._formattedContentLength = 0;
+
+    this._startOfLine = true;
+    this.lastTokenWasNewline = false;
+    this.lastTokenWasWhitespace = false;
+    this.lastNewlineAppendWasMultiple = false;
+
+    this._indent = 0;
+    this._indentString = indentString;
+    this._indentCache = ["", this._indentString];
+
+    this._mapping = mapping;
+    this._originalLineEndings = originalLineEndings || [];
+    this._formattedLineEndings = formattedLineEndings || [];
+    this._originalOffset = originalOffset || 0;
+    this._formattedOffset = formattedOffset || 0;
+
+    this._lastOriginalPosition = 0;
+    this._lastFormattedPosition = 0;
+}
+
+FormatterContentBuilder.prototype = {
+    constructor: FormatterContentBuilder,
+
+    // Public
+
+    get originalContent()
+    {
+        return this._originalContent;
+    },
+
+    get formattedContent()
+    {
+        var formatted = this._formattedContent.join("");
+        console.assert(formatted.length === this._formattedContentLength);
+        return formatted;
+    },
+
+    get mapping()
+    {
+        return this._mapping;
+    },
+
+    get originalLineEndings()
+    {
+        return this._originalLineEndings;
+    },
+
+    get formattedLineEndings()
+    {
+        return this._formattedLineEndings;
+    },
+
+    setOriginalContent: function(originalContent)
+    {
+        console.assert(!this._originalContent);
+        this._originalContent = originalContent;
+    },
+
+    appendToken: function(string, originalPosition)
+    {
+        if (this._startOfLine)
+            this._appendIndent();
+
+        this._addMappingIfNeeded(originalPosition);
+
+        this._append(string);
+        this._startOfLine = false;
+        this.lastTokenWasNewline = false;
+        this.lastTokenWasWhitespace = false;
+    },
+
+    appendSpace: function()
+    {
+        if (!this._startOfLine) {
+            this._append(" ");
+            this.lastTokenWasNewline = false;
+            this.lastTokenWasWhitespace = true;
+        }
+    },
+
+    appendNewline: function(force)
+    {
+        if ((!this.lastTokenWasNewline && !this._startOfLine) || force) {
+            this._append("\n");
+            this._addFormattedLineEnding();
+            this._startOfLine = true;
+            this.lastTokenWasNewline = true;
+            this.lastTokenWasWhitespace = false;
+            this.lastNewlineAppendWasMultiple = false;
+        }
+    },
+
+    appendMultipleNewlines: function(newlines)
+    {
+        console.assert(newlines > 0);
+
+        var wasMultiple = newlines > 1;
+
+        while (newlines-- > 0)
+            this.appendNewline(true);
+
+        if (wasMultiple)
+            this.lastNewlineAppendWasMultiple = true;
+    },
+
+    removeLastNewline: function()
+    {
+        console.assert(this.lastTokenWasNewline);
+        console.assert(this._formattedContent.lastValue === "\n");
+        if (this.lastTokenWasNewline) {
+            this._popNewLine();
+            this._startOfLine = false;
+            this.lastTokenWasNewline = false;
+            this.lastTokenWasWhitespace = false;
+        }
+    },
+
+    indent: function()
+    {
+        ++this._indent;
+    },
+
+    dedent: function()
+    {
+        --this._indent;
+
+        console.assert(this._indent >= 0);
+        if (this._indent < 0)
+            this._indent = 0;
+    },
+
+    addOriginalLineEnding: function(originalPosition)
+    {
+        this._originalLineEndings.push(originalPosition);
+    },
+
+    finish: function()
+    {
+        this.appendNewline();
+    },
+
+    // Private
+
+    _popNewLine: function()
+    {
+        var removed = this._formattedContent.pop();
+        this._formattedContentLength -= removed.length;
+        this._formattedLineEndings.pop();
+    },
+
+    _append: function(str)
+    {
+        this._formattedContent.push(str);
+        this._formattedContentLength += str.length;
+    },
+
+    _appendIndent: function()
+    {
+        // Indent is already in the cache.
+        if (this._indent < this._indentCache.length) {
+            this._append(this._indentCache[this._indent]);
+            return;
+        }
+
+        // Indent was not in the cache, fill up the cache up with what was needed.
+        const maxCacheIndent = 20;
+        var max = Math.min(this._indent, maxCacheIndent);
+        for (var i = this._indentCache.length; i <= max; ++i)
+            this._indentCache[i] = this._indentCache[i-1] + this._indentString;
+
+        // Append indents as needed.
+        var indent = this._indent;
+        do {
+            if (indent >= maxCacheIndent)
+                this._append(this._indentCache[maxCacheIndent]);
+            else
+                this._append(this._indentCache[indent]);
+            indent -= maxCacheIndent;
+        } while (indent > 0);
+    },
+
+    _addMappingIfNeeded: function(originalPosition)
+    {
+        if (originalPosition - this._lastOriginalPosition === this._formattedContentLength - this._lastFormattedPosition)
+            return;
+
+        this._mapping.original.push(this._originalOffset + originalPosition);
+        this._mapping.formatted.push(this._formattedOffset + this._formattedContentLength);
+
+        this._lastOriginalPosition = originalPosition;
+        this._lastFormattedPosition = this._formattedContentLength;
+    },
+
+    _addFormattedLineEnding: function()
+    {
+        console.assert(this._formattedContent.lastValue === "\n");
+        this._formattedLineEndings.push(this._formattedContentLength - 1);
+    }
+}