ab8c8cd365
Added SkipBar, which handles collapsing and expanding of common text that is longer than the preferred context. Added supporting CodeMirror wrappers. Removed unused addon foldcode.js. Fixed to not create publishedMap if published is null. Change-Id: Iabb3481f72529d2dec412de53416235af220d6d8
98 lines
3.0 KiB
Java
98 lines
3.0 KiB
Java
// Copyright (C) 2013 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package net.codemirror.lib;
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import com.google.gerrit.client.rpc.CallbackGroup;
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import com.google.gwt.core.client.Callback;
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import com.google.gwt.core.client.ScriptInjector;
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import com.google.gwt.dom.client.ScriptElement;
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import com.google.gwt.dom.client.StyleInjector;
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import com.google.gwt.resources.client.ExternalTextResource;
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import com.google.gwt.resources.client.ResourceCallback;
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import com.google.gwt.resources.client.ResourceException;
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import com.google.gwt.resources.client.TextResource;
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import com.google.gwt.safehtml.shared.SafeUri;
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import com.google.gwt.user.client.rpc.AsyncCallback;
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import net.codemirror.addon.Addons;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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class Loader {
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private static native boolean isLibLoaded()
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/*-{ return $wnd.hasOwnProperty('CodeMirror'); }-*/;
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static void initLibrary(AsyncCallback<Void> cb) {
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if (isLibLoaded()) {
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cb.onSuccess(null);
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} else {
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CallbackGroup group = new CallbackGroup();
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injectCss(Lib.I.css());
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injectScript(Lib.I.js().getSafeUri(),
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group.add(CallbackGroup.<Void>emptyCallback()));
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injectScript(Addons.I.mark_selection().getSafeUri(),
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group.addFinal(cb));
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}
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}
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private static void injectCss(ExternalTextResource css) {
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try {
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css.getText(new ResourceCallback<TextResource>() {
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@Override
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public void onSuccess(TextResource resource) {
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StyleInjector.inject(resource.getText());
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}
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@Override
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public void onError(ResourceException e) {
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error(e);
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}
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});
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} catch (ResourceException e) {
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error(e);
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}
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}
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static void injectScript(SafeUri js, final AsyncCallback<Void> callback) {
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final ScriptElement[] script = new ScriptElement[1];
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script[0] = ScriptInjector.fromUrl(js.asString())
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.setWindow(ScriptInjector.TOP_WINDOW)
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.setCallback(new Callback<Void, Exception>() {
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@Override
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public void onSuccess(Void result) {
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script[0].removeFromParent();
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callback.onSuccess(result);
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}
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@Override
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public void onFailure(Exception reason) {
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error(reason);
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callback.onFailure(reason);
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}
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})
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.inject()
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.cast();
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}
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private static void error(Exception e) {
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Logger log = Logger.getLogger("net.codemirror");
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log.log(Level.SEVERE, "Cannot load portions of CodeMirror", e);
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}
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private Loader() {
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}
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}
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