com.google.gwt.core.client.impl.SourceMapProperty Maven / Gradle / Ivy
/*
* Copyright 2011 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.core.client.impl;
import com.google.gwt.core.client.GWT;
/**
* Helper class to query if SourceMaps are enabled and capable of working on the current user
* agent.
*/
public class SourceMapProperty {
static class SourceMapEnabled extends SourceMapImpl {
public native boolean doesBrowserSupportSourceMaps() /*-{
// Chrome only for now, future Firefoxes have promised support
return navigator.userAgent.indexOf('Chrome') > -1;
}-*/;
public boolean isSourceMapGenerationOn() {
return true;
}
}
static class SourceMapEmulated extends SourceMapEnabled {
public boolean shouldUseSourceMaps() {
// pretend emulated stack is a sourcemap
return true;
}
}
/**
* Interface to provide both the compile time and runtime user.agent selection
* property value.
*/
static class SourceMapImpl {
public boolean doesBrowserSupportSourceMaps() {
return false;
}
public boolean isSourceMapGenerationOn() {
return false;
}
public boolean shouldUseSourceMaps() {
return isSourceMapGenerationOn() && doesBrowserSupportSourceMaps();
}
}
private static final SourceMapImpl IMPL = GWT.create(SourceMapImpl.class);
public static boolean doesBrowserSupportSourceMaps() {
return IMPL.doesBrowserSupportSourceMaps();
}
/**
* True if fully accurate stack traces are possible. True for DevMode, emulated stack traces, and
* cases where sourceMaps can work with detailed browser stack trace support.
*/
public static boolean isDetailedDeobfuscatedStackTraceSupported() {
return !GWT.isScript() || shouldUseSourceMaps();
}
public static boolean isSourceMapGenerationOn() {
return IMPL.isSourceMapGenerationOn();
}
public static boolean shouldUseSourceMaps() {
return IMPL.shouldUseSourceMaps();
}
}