WebInspector.FontView = function(resource)
{
WebInspector.ResourceView.call(this, resource);
this.element.addStyleClass("font");
}
WebInspector.FontView.prototype = {
hasContentTab: function()
{
return true;
},
contentTabSelected: 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.contentElement.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.updateFontPreviewSize();
},
resize: function()
{
this.updateFontPreviewSize();
},
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;
const containerWidth = this.contentElement.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;