UserAgentSupport.js [plain text]
WebInspector.UserAgentSupport = function()
{
if (WebInspector.settings.deviceMetrics.get())
this._deviceMetricsChanged();
WebInspector.settings.deviceMetrics.addChangeListener(this._deviceMetricsChanged, this);
WebInspector.settings.deviceFitWindow.addChangeListener(this._deviceMetricsChanged, this);
}
WebInspector.UserAgentSupport.DeviceMetrics = function(width, height, fontScaleFactor)
{
this.width = width;
this.height = height;
this.fontScaleFactor = fontScaleFactor;
}
WebInspector.UserAgentSupport.DeviceMetrics.parseSetting = function(value)
{
if (value) {
var splitMetrics = value.split("x");
if (splitMetrics.length === 3)
return new WebInspector.UserAgentSupport.DeviceMetrics(parseInt(splitMetrics[0], 10), parseInt(splitMetrics[1], 10), parseFloat(splitMetrics[2]));
}
return new WebInspector.UserAgentSupport.DeviceMetrics(0, 0, 1);
}
WebInspector.UserAgentSupport.DeviceMetrics.parseUserInput = function(widthString, heightString, fontScaleFactorString)
{
function isUserInputValid(value, isInteger)
{
if (!value)
return true;
return isInteger ? /^[0]*[1-9][\d]*$/.test(value) : /^[0]*([1-9][\d]*(\.\d+)?|\.\d+)$/.test(value);
}
if (!widthString ^ !heightString)
return null;
var isWidthValid = isUserInputValid(widthString, true);
var isHeightValid = isUserInputValid(heightString, true);
var isFontScaleFactorValid = isUserInputValid(fontScaleFactorString, false);
if (!isWidthValid && !isHeightValid && !isFontScaleFactorValid)
return null;
var width = isWidthValid ? parseInt(widthString || "0", 10) : -1;
var height = isHeightValid ? parseInt(heightString || "0", 10) : -1;
var fontScaleFactor = isFontScaleFactorValid ? parseFloat(fontScaleFactorString) : -1;
return new WebInspector.UserAgentSupport.DeviceMetrics(width, height, fontScaleFactor);
}
WebInspector.UserAgentSupport.DeviceMetrics.prototype = {
isValid: function()
{
return this.isWidthValid() && this.isHeightValid() && this.isFontScaleFactorValid();
},
isWidthValid: function()
{
return this.width >= 0;
},
isHeightValid: function()
{
return this.height >= 0;
},
isFontScaleFactorValid: function()
{
return this.fontScaleFactor > 0;
},
toSetting: function()
{
if (!this.isValid())
return "";
return this.width && this.height ? this.width + "x" + this.height + "x" + this.fontScaleFactor : "";
},
widthToInput: function()
{
return this.isWidthValid() && this.width ? String(this.width) : "";
},
heightToInput: function()
{
return this.isHeightValid() && this.height ? String(this.height) : "";
},
fontScaleFactorToInput: function()
{
return this.isFontScaleFactorValid() && this.fontScaleFactor ? String(this.fontScaleFactor) : "";
}
}
WebInspector.UserAgentSupport.prototype = {
_deviceMetricsChanged: function()
{
var metrics = WebInspector.UserAgentSupport.DeviceMetrics.parseSetting(WebInspector.settings.deviceMetrics.get());
if (metrics.isValid())
PageAgent.setDeviceMetricsOverride(metrics.width, metrics.height, metrics.fontScaleFactor, WebInspector.settings.deviceFitWindow.get());
}
}