Merge pull request #204 from couchbaselabs/depfix

backports HTMLPanel

src/main/java/com/couchbase/intellij/tree/iq/ui/HtmlPanel.java

@@ -0,0 +1,111 @@
+// Copyright 2000-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+package com.couchbase.intellij.tree.iq.ui;
+
+import com.intellij.openapi.util.NlsSafe;
+import com.intellij.openapi.util.text.HtmlBuilder;
+import com.intellij.openapi.util.text.HtmlChunk;
+import com.intellij.openapi.util.text.StringUtil;
+import com.intellij.openapi.vcs.ui.FontUtil;
+import com.intellij.ui.BrowserHyperlinkListener;
+import com.intellij.ui.ColorUtil;
+import com.intellij.util.ui.HTMLEditorKitBuilder;
+import com.intellij.util.ui.JBUI;
+import com.intellij.util.ui.UIUtil;
+import org.jetbrains.annotations.Nls;
+import org.jetbrains.annotations.NotNull;
+
+import javax.swing.*;
+import javax.swing.event.HyperlinkEvent;
+import javax.swing.event.HyperlinkListener;
+import javax.swing.text.BadLocationException;
+import javax.swing.text.DefaultCaret;
+import javax.swing.text.Document;
+import javax.swing.text.Position;
+import javax.swing.text.html.HTMLDocument;
+import javax.swing.text.html.StyleSheet;
+import java.awt.*;
+import java.io.IOException;
+import java.io.StringWriter;
+
+public abstract class HtmlPanel extends JEditorPane implements HyperlinkListener {
+    public HtmlPanel() {
+        super(UIUtil.HTML_MIME, "");
+        setEditable(false);
+        setOpaque(false);
+        putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, Boolean.TRUE);
+        addHyperlinkListener(this);
+        setEditorKit(new HTMLEditorKitBuilder().withWordWrapViewFactory().build());
+    }
+
+    @Override
+    public void hyperlinkUpdate(HyperlinkEvent e) {
+        BrowserHyperlinkListener.INSTANCE.hyperlinkUpdate(e);
+    }
+
+    @Override
+    public String getSelectedText() {
+        Document doc = getDocument();
+        int start = getSelectionStart();
+        int end = getSelectionEnd();
+
+        try {
+            Position p0 = doc.createPosition(start);
+            Position p1 = doc.createPosition(end);
+            StringWriter sw = new StringWriter(p1.getOffset() - p0.getOffset());
+            getEditorKit().write(sw, doc, p0.getOffset(), p1.getOffset() - p0.getOffset());
+
+            return StringUtil.removeHtmlTags(sw.toString());
+        }
+        catch (BadLocationException | IOException ignored) {
+        }
+        return super.getSelectedText();
+    }
+
+    public void setBody(@NotNull @Nls String text) {
+        if (text.isEmpty()) {
+            setText("");
+        }
+        else {
+            @NlsSafe String cssFontDeclaration = UIUtil.getCssFontDeclaration(getBodyFont());
+            setText(new HtmlBuilder()
+                    .append(HtmlChunk.raw(cssFontDeclaration).wrapWith("head"))
+                    .append(HtmlChunk.raw(text).wrapWith(HtmlChunk.body()))
+                    .wrapWith(HtmlChunk.html()).toString());
+        }
+    }
+
+    @NotNull
+    protected Font getBodyFont() {
+        return FontUtil.getCommitMessageFont();
+    }
+
+    @NotNull
+    @Nls
+    protected abstract String getBody();
+
+    @Override
+    public void updateUI() {
+        super.updateUI();
+
+        DefaultCaret caret = (DefaultCaret)getCaret();
+        caret.setUpdatePolicy(DefaultCaret.NEVER_UPDATE);
+
+        update();
+    }
+
+    public void update() {
+        setBody(getBody());
+        customizeLinksStyle();
+        revalidate();
+        repaint();
+    }
+
+    private void customizeLinksStyle() {
+        Document document = getDocument();
+        if (document instanceof HTMLDocument) {
+            StyleSheet styleSheet = ((HTMLDocument)document).getStyleSheet();
+            String linkColor = "#" + ColorUtil.toHex(JBUI.CurrentTheme.Link.Foreground.ENABLED); // NON-NLS
+            styleSheet.addRule("a { color: " + linkColor + "; text-decoration: none;}"); // NON-NLS
+        }
+    }
+}

src/main/java/com/couchbase/intellij/tree/iq/ui/MessagePanel.java

@@ -1,18 +1,24 @@
 package com.couchbase.intellij.tree.iq.ui;
 
 import com.couchbase.intellij.tree.iq.text.TextFragment;
-import com.couchbase.intellij.tree.iq.ui.view.*;
+import com.couchbase.intellij.tree.iq.ui.view.CollapsiblePanelFactory;
+import com.couchbase.intellij.tree.iq.ui.view.HyperlinkHandler;
+import com.couchbase.intellij.tree.iq.ui.view.LanguageDetector;
+import com.couchbase.intellij.tree.iq.ui.view.RSyntaxTextAreaView;
 import com.couchbase.intellij.tree.iq.util.StandardLanguage;
 import com.intellij.openapi.project.Project;
-import com.intellij.util.ui.*;
+import com.intellij.util.ui.ExtendableHTMLViewFactory;
+import com.intellij.util.ui.HTMLEditorKitBuilder;
+import com.intellij.util.ui.UIUtil;
 import org.jetbrains.annotations.Nls;
 import org.jetbrains.annotations.NotNull;
 
 import javax.swing.event.HyperlinkEvent;
-import javax.swing.text.*;
+import javax.swing.text.AttributeSet;
+import javax.swing.text.Element;
+import javax.swing.text.StyleConstants;
+import javax.swing.text.View;
 import javax.swing.text.html.HTML;
-import javax.swing.text.html.HTMLDocument;
-import javax.swing.text.html.StyleSheet;
 import java.awt.*;
 
 public class MessagePanel extends HtmlPanel implements MessageRenderer {