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authorMark Wielaard <mark@klomp.org>2006-12-08 11:19:22 +0000
committerMark Wielaard <mark@klomp.org>2006-12-08 11:19:22 +0000
commitb77f88df258fa3ee1833555426a75a612b4fa9b4 (patch)
treebfe98f4fa2f33220577b9c4201629869c84a7398 /examples/gnu/classpath/examples/swing/HtmlDemo.java
parent9ebb135b531c52db2ef1c254372a506b12e22a04 (diff)
downloadclasspath-b77f88df258fa3ee1833555426a75a612b4fa9b4.tar.gz
2006-12-05 Roman Kennke <kennke@aicas.com>
* javax/swing/text/html/ImageView.java (imageUpdate): Use spans field to determine if the CSS width/height are set. Call safePreferenceChanged to protect view structure from threading issues. (spans): Made package private. (ImageView): Initialize loadOnDemand with false. (loadImage): Call Toolkit.prepareImage() to make sure we have our Observer registered. (safePreferenceChanged): New helper method. Calls preferenceChanged in a thread safe environment. 2006-12-05 Roman Kennke <kennke@aicas.com> * NEWS: Add entry about improved HTML support. 2006-12-05 Roman Kennke <kennke@aicas.com> * javax/swing/text/html/ImageView.java (ImageView): Initialize spans array here. (setPropertiesFromAttributes): Moved init of spans array to constructor. 2006-12-05 Roman Kennke <kennke@aicas.com> * javax/swing/text/html/BlockView.java (painter): Made package visible. * javax/swing/text/html/StyleSheet.java (translateBorder): New helper method. (translateHTMLToCSS): Add mappings for border attributes. * javax/swing/text/html/TableView.java Made class subclass of BlockView to get CSS goodness. (CellView.rowSpan): New field. (CellView.setPropertiesFromAttributes): Fetch rowspan. (RowView.overlap): New field. (RowView.rowIndex): New field. (RowView.layoutMajorAxis): Skip overlapping cells. (RowView.layoutMinorAxis): Layout cells that span more than 1 row. (numColumns): New field. (tmpRect): New field. (TableView): Initialize tmpRect. (calculateColumnRequirements): Adjusted and fixed for multirows. (getAlignment): Overridden to center tables. (paint): Overridden to fix clipping. (getStyleSheet): Made protected. (layoutMajorAxis): Invalidate rows. (setPropertiesFromAttributes): Made protected and call super. (updateGrid): Update the overlapping information for multirows. 2006-12-05 Roman Kennke <kennke@aicas.com> * javax/swing/text/html/HTMLEditorKit.java (HTMLFactory.create): Removed debug output. * javax/swing/text/html/InlineView.java (getBreakWeight): Likewise. * javax/swing/text/html/StyleSheet.java (addRule): Likewise. (ListPainter.paint): Removed debug output. 2006-12-06 Roman Kennke <kennke@aicas.com> * javax/swing/text/html/BlockView.java (getAlignment): Align blocks horizontally by the superclass. * javax/swing/text/html/HTMLEditorKit.java (HTMLFactory.create): Replace equals comparison by == for efficiency. Add mapping for misplaced tr, td and th tags. Include object mapping. * javax/swing/text/html/TableView.java (RowView.replace): Invalidate grid early. (gridValid): Initialize with false. (create): Only create RowView and CellView for correctly placed tags. Avoid unnecessary casts. (getAlignment): Removed. (replace): Invalidate grid early. 2006-12-06 Roman Kennke <kennke@aicas.com> * javax/swing/text/html/TableView.java (RowView.layoutMajorAxis): Check column index for invalid value. (updateGrid): Check column index for invalid value. 2006-12-06 Roman Kennke <kennke@aicas.com> * javax/swing/JEditorPane.java (getStream): Buffer the stream for efficiency. (setPage): Don't scroll the view at this point. * javax/swing/plaf/basic/BasicTextUI.java (RootView.paint): Call RootView's setSize to get synchronization. (RootView.setSize): Synchronize to prevent race in layout code. * javax/swing/text/AbstractDocument.java (notifyListeners): New field. (fireChangedUpdate): Track notifyListener field. (fireRemoveUpdate): Track notifyListener field. (fireIndertUpdate): Track notifyListener field. (writeLock): Check notifyListener and throw IllegalStateException. * javax/swing/text/View.java (preferenceChanged): Create local var for better thread safety and more efficiency. 2006-12-06 Roman Kennke <kennke@aicas.com> * examples/gnu/classpath/examples/icons/back.png, * examples/gnu/classpath/examples/icons/reload.png: New icons for the HTML browser. * examples/gnu/classpath/examples/swing/HtmlDemo.java (history): New field. Manages the browsing history. (HtmlDemo): Initialize history. (createContent): Set location and add history. Add toolbar. (createToolBar): New helper method. (main): Make default size bigger. * examples/gnu/classpath/examples/swing/frame1.html, * examples/gnu/classpath/examples/swing/frame2.html, * examples/gnu/classpath/examples/swing/frame3.html, * examples/gnu/classpath/examples/swing/frame4.html, * examples/gnu/classpath/examples/swing/frames.html, * examples/gnu/classpath/examples/swing/tables.html: New example pages. * examples/gnu/classpath/examples/swing/welcome.html Add a couple of links and new test pages. 2006-12-06 Roman Kennke <kennke@aicas.com> * examples/gnu/classpath/examples/swing/Demo.java (getIcon): Made package private. * examples/gnu/classpath/examples/swing/HtmlDemo.java (hyperlinkUpdate): Convert URL to string. 2006-12-06 Roman Kennke <kennke@aicas.com> * javax/swing/text/DefaultCaret.java (appear): Adjust visibility here. (setDotImpl): Don't adjust visibility here. (moveDotImpl): Don't adjust visibility here. 2006-12-06 Roman Kennke <kennke@aicas.com> * javax/swing/text/html/FormView.java (SubmitThread.postData): Implemented. (SubmitThread.run): Pass data to postData(). (actionPerformed): Reset form when reset button is activated. (createComponent): Add support for select lists and comboboxes. Don't set value of text and password fields here, this is done now in HTMLDocument for consistency. (getElementFormData): Add support for fetching form data from select lists and comboboxes as well as textareas. (getSelectData): New helper method. Fetches form data from select boxes. (getTextAreaData): New helper method. Fetches form data from textareas. (resetForm): New helper method. Resets the entire form. * javax/swing/text/html/HTMLDocument.java (HTMLReader.FormAction.end): Handle SELECT and OPTION tags. (HTMLReader.FormAction.start): Handle SELECT and OPTION tags. (HTMLReader.FormAction.setModel): Initialize text and password values here. Also, use the resetable special models. Group radio buttons into ButtonGroup for exclusive selection. (HTMLReader.FormTagAction): New class. Handles FORM tags. (HTMLReader.buttonGroups): New field. (HTMLReader.numOptions): New field. (HTMLReader.option): New field. (HTMLReader.selectModel): New field. (HTMLReader.textAreaDocument): Make ResetablePlainDocument. (HTMLReader.handleText): Handle OPTION text. (HTMLReader.initTags): Map FORM tags to FormTagAction. (HTMLReader.textAreaContent): Set initial content. * javax/swing/text/html/Option.java (Option): Make copy of attribute set. Initialize selected state. (getValue): Fetch value from attribute set. * javax/swing/text/html/ResetableModel.java: New interface. * javax/swing/text/html/ResetablePlainDocument.java: New class. Supports resetting the state. * javax/swing/text/html/ResetableToggleButtonModel.java: Likewise. * javax/swing/text/html/SelectComboBoxModel.java: Likewise. * javax/swing/text/html/SelectListModel.java: Likewise. 2006-12-06 Roman Kennke <kennke@aicas.com> * examples/gnu/classpath/examples/swing/BrowserEditorKit.java: New class. * examples/gnu/classpath/examples/swing/HtmlDemo.java (LoadActionListener): Call setPage() helper method. (createContent): Register tweaked editor kit. For FormSubmitEvents call submitForm(), otherwise setPage(). (postData): Helper method for posting form data. (setPage): Helper method for navigating to a new URL. (submitForm): Helper method for submitting a form. * examples/gnu/classpath/examples/swing/forms.html: Added text/password fields and select boxes. * examples/gnu/classpath/examples/swing/welcome.html: Fixed typo. 2006-12-07 Mark Wielaard <mark@klomp.org> * java/net/URL.java (URL(URL,String,URLStreamHandler,boolean)): New private constructor. (URL(URL,String,URLStreamHandler)): Call new constructor. (URL(URL,String)): Likewise. (URL(String)): Likewise. 2006-12-07 Mark Wielaard <mark@klomp.org> * javax/swing/JEditorPane.java (createEditorKitForContentType): Always load from system class loader.
Diffstat (limited to 'examples/gnu/classpath/examples/swing/HtmlDemo.java')
-rw-r--r--examples/gnu/classpath/examples/swing/HtmlDemo.java215
1 files changed, 194 insertions, 21 deletions
diff --git a/examples/gnu/classpath/examples/swing/HtmlDemo.java b/examples/gnu/classpath/examples/swing/HtmlDemo.java
index 4cbf3ce47..35a9df290 100644
--- a/examples/gnu/classpath/examples/swing/HtmlDemo.java
+++ b/examples/gnu/classpath/examples/swing/HtmlDemo.java
@@ -43,19 +43,28 @@ import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+import java.net.MalformedURLException;
import java.net.URL;
+import java.net.URLConnection;
+import java.util.LinkedList;
import javax.swing.BoxLayout;
+import javax.swing.Icon;
import javax.swing.JButton;
import javax.swing.JComponent;
+import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JTextPane;
+import javax.swing.JToolBar;
import javax.swing.SwingUtilities;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
+import javax.swing.text.html.FormSubmitEvent;
/**
* Parses and displays HTML content.
@@ -74,11 +83,11 @@ public class HtmlDemo extends JPanel
String urlStr = url.getText();
try
{
- html.setPage(url.getText());
+ setPage(new URL(url.getText()));
}
- catch (IOException ex)
+ catch (MalformedURLException ex)
{
- System.err.println("exception while loading: " + ex);
+ // Do something more useful here.
ex.printStackTrace();
}
}
@@ -98,10 +107,17 @@ public class HtmlDemo extends JPanel
int n;
+ /**
+ * The browsing history.
+ *
+ * Package private to avoid accessor method.
+ */
+ LinkedList history;
+
public HtmlDemo()
{
super();
- html.setContentType("text/html"); // not now.
+ history = new LinkedList();
createContent();
}
@@ -115,23 +131,24 @@ public class HtmlDemo extends JPanel
{
setLayout(new BorderLayout());
+ JEditorPane.registerEditorKitForContentType("text/html",
+ BrowserEditorKit.class.getName());
html.setEditable(false);
html.addHyperlinkListener(new HyperlinkListener()
{
public void hyperlinkUpdate(HyperlinkEvent event)
{
- URL u = event.getURL();
- if (u != null)
+ if (event instanceof FormSubmitEvent)
{
- url.setText(u.toString());
- try
- {
- html.setPage(u);
- }
- catch (IOException ex)
+ submitForm((FormSubmitEvent) event);
+ }
+ else
+ {
+ URL u = event.getURL();
+ if (u != null)
{
- ex.printStackTrace();
+ setPage(u);
}
}
}
@@ -148,24 +165,93 @@ public class HtmlDemo extends JPanel
JButton loadButton = new JButton("go");
urlPanel.add(loadButton);
loadButton.addActionListener(action);
- add(urlPanel, BorderLayout.NORTH);
- add(scroller, BorderLayout.CENTER);
+
+ // Setup control panel.
+ JToolBar controlPanel = createToolBar();
+ JPanel browserPanel = new JPanel();
+ browserPanel.setLayout(new BorderLayout());
+ browserPanel.add(urlPanel, BorderLayout.NORTH);
+ browserPanel.add(scroller, BorderLayout.CENTER);
+ add(controlPanel, BorderLayout.NORTH);
+ add(browserPanel, BorderLayout.CENTER);
// Load start page.
- URL startpage = getClass().getResource("welcome.html");
try
{
+ URL startpage = getClass().getResource("welcome.html");
html.setPage(startpage);
url.setText(startpage.toString());
+ history.addLast(startpage);
}
- catch (IOException ex)
+ catch (Exception ex)
{
- System.err.println("couldn't load page: " + startpage);
+ System.err.println("couldn't load page: "/* + startpage*/);
+ ex.printStackTrace();
}
-
- setPreferredSize(new Dimension(600, 400));
+ setPreferredSize(new Dimension(800, 600));
}
+
+ /**
+ * Creates the toolbar with the control buttons.
+ *
+ * @return the toolbar with the control buttons
+ */
+ JToolBar createToolBar()
+ {
+ JToolBar tb = new JToolBar();
+ Icon backIcon = Demo.getIcon("/gnu/classpath/examples/icons/back.png",
+ "back");
+ JButton back = new JButton(backIcon);
+ back.addActionListener(new ActionListener()
+ {
+ public void actionPerformed(ActionEvent ev)
+ {
+ if (history.size() > 1)
+ {
+ URL last = (URL) history.removeLast();
+ last = (URL) history.getLast();
+ url.setText(last.toString());
+ try
+ {
+ html.setPage(last);
+ }
+ catch (IOException ex)
+ {
+ // Do something more useful.
+ ex.printStackTrace();
+ }
+ }
+ }
+ });
+ tb.add(back);
+ Icon reloadIcon = Demo.getIcon("/gnu/classpath/examples/icons/reload.png",
+ "reload");
+ JButton reload = new JButton(reloadIcon);
+ reload.addActionListener(new ActionListener()
+ {
+ public void actionPerformed(ActionEvent ev)
+ {
+ if (history.size() > 0)
+ {
+ URL last = (URL) history.getLast();
+ url.setText(last.toString());
+ try
+ {
+ html.setPage(last);
+ }
+ catch (IOException ex)
+ {
+ // Do something more useful.
+ ex.printStackTrace();
+ }
+ }
+ }
+ });
+ tb.add(reload);
+ return tb;
+ }
+
/**
* The executable method to display the editable table.
*
@@ -182,13 +268,100 @@ public class HtmlDemo extends JPanel
HtmlDemo demo = new HtmlDemo();
JFrame frame = new JFrame();
frame.getContentPane().add(demo);
- frame.setSize(new Dimension(700, 480));
+ frame.setSize(new Dimension(750, 480));
frame.setVisible(true);
}
});
}
/**
+ * Helper method to navigate to a new URL.
+ *
+ * @param u the new URL to navigate to
+ */
+ void setPage(URL u)
+ {
+ try
+ {
+ url.setText(u.toString());
+ html.setPage(u.toString());
+ history.addLast(u);
+ }
+ catch (IOException ex)
+ {
+ // Do something more useful here.
+ ex.printStackTrace();
+ }
+ }
+
+ /**
+ * Submits a form when a FormSubmitEvent is received. The HTML API
+ * provides automatic form submit but when this is enabled we don't
+ * receive any notification and can't update our location field.
+ *
+ * @param ev the form submit event
+ */
+ void submitForm(FormSubmitEvent ev)
+ {
+ URL url = ev.getURL();
+ String data = ev.getData();
+ FormSubmitEvent.MethodType method = ev.getMethod();
+ if (method == FormSubmitEvent.MethodType.POST)
+ {
+ try
+ {
+ URLConnection conn = url.openConnection();
+ postData(conn, data);
+ }
+ catch (IOException ex)
+ {
+ // Deal with this.
+ ex.printStackTrace();
+ }
+ }
+ else
+ {
+ try
+ {
+ url = new URL(url.toString() + "?" + data);
+ }
+ catch (MalformedURLException ex)
+ {
+ ex.printStackTrace();
+ }
+ }
+ setPage(url);
+ }
+
+ /**
+ * Posts the form data for forms with HTTP POST method.
+ *
+ * @param conn the connection
+ * @param data the form data
+ */
+ private void postData(URLConnection conn, String data)
+ {
+ conn.setDoOutput(true);
+ PrintWriter out = null;
+ try
+ {
+ out = new PrintWriter(new OutputStreamWriter(conn.getOutputStream()));
+ out.print(data);
+ out.flush();
+ }
+ catch (IOException ex)
+ {
+ // Deal with this!
+ ex.printStackTrace();
+ }
+ finally
+ {
+ if (out != null)
+ out.close();
+ }
+ }
+
+ /**
* Returns a DemoFactory that creates a HtmlDemo.
*
* @return a DemoFactory that creates a HtmlDemo