Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 109 insertions, 0 deletions

diff --git a/Source/WebCore/inspector/front-end/FontView.js b/Source/WebCore/inspector/front-end/FontView.js
new file mode 100644
index 0000000..82559ef
--- /dev/null
+++ b/Source/WebCore/inspector/front-end/FontView.js
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2007, 2008 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.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE 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 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.FontView = function(resource)
+{
+    WebInspector.ResourceView.call(this, resource);
+
+    this.element.addStyleClass("font");
+}
+
+WebInspector.FontView.prototype = {
+    hasContent: function()
+    {
+        return true;
+    },
+
+    _createContentIfNeeded: function()
+    {
+        if (this.fontPreviewElement)
+            return;
+
+        var uniqueFontName = "WebInspectorFontPreview" + this.resource.identifier;
+
+        this.fontStyleElement = document.createElement("style");
+        this.fontStyleElement.textContent = "@font-face { font-family: \"" + uniqueFontName + "\"; src: url(" + this.resource.url + "); }";
+        document.head.appendChild(this.fontStyleElement);
+
+        this.fontPreviewElement = document.createElement("div");
+        this.element.appendChild(this.fontPreviewElement);
+
+        this.fontPreviewElement.style.setProperty("font-family", uniqueFontName, null);
+        this.fontPreviewElement.innerHTML = "ABCDEFGHIJKLM<br>NOPQRSTUVWXYZ<br>abcdefghijklm<br>nopqrstuvwxyz<br>1234567890";
+        this._lineCount = this.fontPreviewElement.getElementsByTagName("br").length + 1;
+
+        this.updateFontPreviewSize();
+    },
+
+    show: function(parentElement)
+    {
+        WebInspector.ResourceView.prototype.show.call(this, parentElement);
+        this._createContentIfNeeded();
+        this.updateFontPreviewSize();
+    },
+
+    resize: function()
+    {
+        this.updateFontPreviewSize();
+        WebInspector.ResourceView.prototype.resize.call(this);
+    },
+
+    updateFontPreviewSize: function()
+    {
+        if (!this.fontPreviewElement || !this.visible)
+            return;
+
+        const measureFontSize = 50;
+        this.fontPreviewElement.style.setProperty("font-size", measureFontSize + "px", null);
+        this.fontPreviewElement.style.setProperty("position", "absolute", null);
+        this.fontPreviewElement.style.removeProperty("height");
+
+        const height = this.fontPreviewElement.offsetHeight;
+        const width = this.fontPreviewElement.offsetWidth;
+
+        // Subtract some padding. This should match the padding in the CSS plus room for the scrollbar.
+        const containerWidth = this.element.offsetWidth - 50;
+
+        if (!height || !width || !containerWidth) {
+            this.fontPreviewElement.style.removeProperty("font-size");
+            this.fontPreviewElement.style.removeProperty("position");
+            return;
+        }
+
+        var realLineHeight = Math.floor(height / this._lineCount);
+        var fontSizeLineRatio = measureFontSize / realLineHeight;
+        var widthRatio = containerWidth / width;
+        var finalFontSize = Math.floor(realLineHeight * widthRatio * fontSizeLineRatio) - 2;
+
+        this.fontPreviewElement.style.setProperty("font-size", finalFontSize + "px", null);
+        this.fontPreviewElement.style.setProperty("height", this.fontPreviewElement.offsetHeight + "px", null);
+        this.fontPreviewElement.style.removeProperty("position");
+    }
+}
+
+WebInspector.FontView.prototype.__proto__ = WebInspector.ResourceView.prototype;