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/*
* 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.FontResourceContentView = function(resource)
{
WebInspector.ResourceContentView.call(this, resource, WebInspector.FontResourceContentView.StyleClassName);
this._styleElement = null;
this._previewElement = null;
};
WebInspector.FontResourceContentView._uniqueFontIdentifier = 0;
WebInspector.FontResourceContentView.StyleClassName = "font";
WebInspector.FontResourceContentView.PreviewElementStyleClassName = "preview";
WebInspector.FontResourceContentView.LineElementStyleClassName = "line";
WebInspector.FontResourceContentView.ContentElementStyleClassName = "content";
WebInspector.FontResourceContentView.MetricElementStyleClassName = "metric";
WebInspector.FontResourceContentView.TopMetricElementStyleClassName = "top";
WebInspector.FontResourceContentView.XHeightMetricElementStyleClassName = "xheight";
WebInspector.FontResourceContentView.MiddleMetricElementStyleClassName = "middle";
WebInspector.FontResourceContentView.BaselineMetricElementStyleClassName = "baseline";
WebInspector.FontResourceContentView.BottomMetricElementStyleClassName = "bottom";
WebInspector.FontResourceContentView.PreviewLines = ["ABCDEFGHIJKLM", "NOPQRSTUVWXYZ", "abcdefghijklm", "nopqrstuvwxyz", "1234567890"];
WebInspector.FontResourceContentView.MaximumFontSize = 72;
WebInspector.FontResourceContentView.MinimumFontSize = 12;
WebInspector.FontResourceContentView.prototype = {
constructor: WebInspector.FontResourceContentView,
// Public
get previewElement()
{
return this._previewElement;
},
sizeToFit: function()
{
if (!this._previewElement)
return;
// Start at the maximum size and try progressively smaller font sizes until minimum is reached or the preview element is not as wide as the main element.
for (var fontSize = WebInspector.FontResourceContentView.MaximumFontSize; fontSize >= WebInspector.FontResourceContentView.MinimumFontSize; fontSize -= 5) {
this._previewElement.style.fontSize = fontSize + "px";
if (this._previewElement.offsetWidth <= this.element.offsetWidth)
break;
}
},
contentAvailable: function(content, base64Encoded)
{
this.element.removeChildren();
const uniqueFontName = "WebInspectorFontPreview" + (++WebInspector.FontResourceContentView._uniqueFontIdentifier);
var format = "";
// We need to specify a format when loading SVG fonts to make them work.
if (this.resource.mimeType === "image/svg+xml")
format = " format(\"svg\")";
if (this._styleElement && this._styleElement.parentNode)
this._styleElement.parentNode.removeChild(this._styleElement);
this._styleElement = document.createElement("style");
this._styleElement.textContent = "@font-face { font-family: \"" + uniqueFontName + "\"; src: url(" + this.resource.contentURL + ")" + format + "; }";
// The style element will be added when shown later if we are not visible now.
if (this.visible)
document.head.appendChild(this._styleElement);
this._previewElement = document.createElement("div");
this._previewElement.className = WebInspector.FontResourceContentView.PreviewElementStyleClassName;
this._previewElement.style.fontFamily = uniqueFontName;
function createMetricElement(className)
{
var metricElement = document.createElement("div");
metricElement.className = WebInspector.FontResourceContentView.MetricElementStyleClassName + " " + className;
return metricElement;
}
var lines = WebInspector.FontResourceContentView.PreviewLines;
for (var i = 0; i < lines.length; ++i) {
var lineElement = document.createElement("div");
lineElement.className = WebInspector.FontResourceContentView.LineElementStyleClassName;
lineElement.appendChild(createMetricElement(WebInspector.FontResourceContentView.TopMetricElementStyleClassName));
lineElement.appendChild(createMetricElement(WebInspector.FontResourceContentView.XHeightMetricElementStyleClassName));
lineElement.appendChild(createMetricElement(WebInspector.FontResourceContentView.MiddleMetricElementStyleClassName));
lineElement.appendChild(createMetricElement(WebInspector.FontResourceContentView.BaselineMetricElementStyleClassName));
lineElement.appendChild(createMetricElement(WebInspector.FontResourceContentView.BottomMetricElementStyleClassName));
var contentElement = document.createElement("div");
contentElement.className = WebInspector.FontResourceContentView.ContentElementStyleClassName;
contentElement.textContent = lines[i];
lineElement.appendChild(contentElement);
this._previewElement.appendChild(lineElement);
}
this.element.appendChild(this._previewElement);
this.sizeToFit();
},
updateLayout: function()
{
this.sizeToFit();
},
shown: function()
{
// Add the style element since it is removed when hidden.
if (this._styleElement)
document.head.appendChild(this._styleElement);
},
hidden: function()
{
// Remove the style element so it will not stick around when this content view is destroyed.
if (this._styleElement && this._styleElement.parentNode)
this._styleElement.parentNode.removeChild(this._styleElement);
}
};
WebInspector.FontResourceContentView.prototype.__proto__ = WebInspector.ResourceContentView.prototype;
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