/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores
* CA 94065 USA or visit www.oracle.com if you need additional information or
* have any questions.
*/
package com.sun.lwuit.html;
import com.sun.lwuit.Button;
import com.sun.lwuit.CheckBox;
import com.sun.lwuit.ComboBox;
import com.sun.lwuit.Command;
import com.sun.lwuit.Component;
import com.sun.lwuit.Container;
import com.sun.lwuit.Display;
import com.sun.lwuit.Font;
import com.sun.lwuit.Form;
import com.sun.lwuit.Graphics;
import com.sun.lwuit.Label;
import com.sun.lwuit.List;
import com.sun.lwuit.RadioButton;
import com.sun.lwuit.TextArea;
import com.sun.lwuit.TextField;
import com.sun.lwuit.animations.Motion;
import com.sun.lwuit.events.ActionEvent;
import com.sun.lwuit.events.ActionListener;
import com.sun.lwuit.geom.Dimension;
import com.sun.lwuit.geom.Rectangle;
import com.sun.lwuit.layouts.BorderLayout;
import com.sun.lwuit.layouts.BoxLayout;
import com.sun.lwuit.layouts.FlowLayout;
import com.sun.lwuit.plaf.Border;
import com.sun.lwuit.plaf.Style;
import com.sun.lwuit.plaf.UIManager;
import com.sun.lwuit.table.Table;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Vector;
/**
* HTMLComponent is a LWUIT Component that renders HTML documents that conform to the XHTML Mobile Profile 1.0
*
* @author Ofir Leitner
*/
public class HTMLComponent extends Container implements ActionListener,AsyncDocumentRequestHandler.IOCallback {
// long startTime;
// String msg="";
// long textTime;
// Internal "tweakable" constants
/**
* If true a full screen width will be assumed, this helps to make less internal components as text is aggregated to long labels
* If false, then the width is flexible, but every word will be rendered as a separate label.
* Note that if false, RTL texts will display in
*/
static final boolean FIXED_WIDTH = false;
/**
* A constant that can be used to obfuscate out HTMLInputFormat if unnecessary
*/
static final boolean SUPPORT_INPUT_FORMAT = true;
/**
* A constant that can be used to obfuscate out all CSS related code if unnecessary
*/
static final boolean SUPPORT_CSS = true;
/**
* If true, when a page is requested, the previous page is immediately removed, thus helping conserve memory (Since only 1 page is held in memory simultanously)
* In next releases a better and external control over this will be provided.
*/
private static final boolean CLEAN_ON_PAGE_REQUEST = true; //false;
/**
* If true, checks will be made on each character in the text to see if it is CJK (Chinese, Japanese, Korean)
* If so each character will be considered as an entire word (for line wrapping puposes) as required in CJK.
* Since the tests require multiple unicode ranges check, this can be set to false avoiding these tests if the app doesn't use CJK
*/
private static final boolean CJK_SUPPORT = true;
/**
* A constant denoting whether to process only XHTML-MP1 (and WCSS), or some other tags/properties from HTML4/CSS2
*/
static final boolean PROCESS_HTML_MP1_ONLY = false;
/**
* If true, then table cells will be preset with a size according to their preferred size, before the table begins calculating needed sizes
* This also requires loading all images in table cells prior to page display (Unlike the normal way in which they can be completed afterwards)
* This is needed due to some complexity when calculating sizes of tables with complex containers as cells, and especially with nested tables
*/
//static final boolean TABLES_LOCK_SIZE = true; // The issue that required this patch was solved in the table package
// Indentation for various tags
private static final int INDENT_BLOCKQUOTE = 20;
private static final int INDENT_DD = 20;
private static final int INDENT_OL = Font.getDefaultFont().stringWidth("8888. "); //Ordered list
private static final int INDENT_UL = Font.getDefaultFont().charWidth('W'); //Unordered list
// The minimum number of visible items of a multiple combobox (Unless it has less)
private static final int MIN_MULTI_COMBOBOX_ITEMS = 4;
private static final int MAX_MULTI_COMBOBOX_ITEMS = 6;
/**
* The default size (in characters) of an input textfield
*/
private static final int DEFAULT_TEXTFIELD_SIZE = 12;
/**
* The default oolumns (in characters) of an textarea
*/
private static final int DEFAULT_TEXTAREA_COLS = 20;
/**
* The default rows (in characters) of an textarea
*/
private static final int DEFAULT_TEXTAREA_ROWS = 2;
/**
* Indicates a Justify alignment. Text justification is enabled only in FIXED_WIDTH mode
*/
static final int JUSTIFY = 5;
/**
* The thickness of a line drawn by the HR tag
*/
private static final int HR_THICKNESS = 3;
/**
* The time it takes a marquee to move across the screen (See -wap-marquee in CSS)
*/
private static final int MARQUEE_DELAY = 6000;
/**
* When this is set to true, only exact fonts will be matched, i.e. if the font matching algorithm needs an arial.12.bold.italic - it will not "settle" for just bold or italic or a different size
* Default is false
*/
private static final boolean MATCH_EXACT_FONTS_ONLY = false;
/**
* When this is set to true only bitmap fonts will be used for matching (and not system fonts)
* Default is true, and false has not been tested thoroughly
*/
private static final boolean MATCH_BITMAP_FONTS_ONLY = true;
/**
* When this is set to true, only fonts of the same family will be matched. i.e. if we're looking for a bigger font than arial.10, and we have timesnewroman.12 it will not be taken as a matching font
* Default is true
*/
private static final boolean MATCH_SAME_FONT_FAMILY_ONLY = true;
/**
* The default font to use
*/
private static HTMLFont DEFAULT_FONT = new HTMLFont(null,Font.createSystemFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN, Font.SIZE_MEDIUM));
/**
* The color given to visited links
*/
private static final int COLOR_VISITED_LINKS = 0x990099;
/**
* A hashtable containing all defined HTMLFont objects
*/
static Hashtable fonts = new Hashtable();
// Constants for the various possible input types (i.e. allowed values of the INPUT tag)
private static final int INPUT_CHECKBOX = 0;
private static final int INPUT_HIDDEN = 1;
private static final int INPUT_PASSWORD = 2;
private static final int INPUT_RADIO = 3;
private static final int INPUT_RESET = 4;
private static final int INPUT_SUBMIT = 5;
private static final int INPUT_TEXT = 6;
private static final int INPUT_IMAGE = 7; // image is not officially supported in XHTML-MP 1.0 but we support it
//private static final int INPUT_BUTTON = 8; //button is not supported in XHTML-MP 1.0
//private static final int INPUT_FILE = 9; //file upload is not supported in XHTML-MP 1.0
/**
* Defines the possible values for the type attribute in the input tag, ordered according to the INPUT_* constants
*/
private static String[] INPUT_TYPE_STRINGS = {
"checkbox","hidden","password","radio","reset",
"submit","text","image"
};
/**
* Vector holding the possible input type strings.
*/
private static Vector INPUT_TYPES = new Vector();
static final String CLIENT_PROPERTY_QUOTE = "quote"; // Client property added to quote elements to enable changing them later on with CSS
static final String CLIENT_PROPERTY_IMG_BORDER = "imgBorder";
// Ordered list types
/**
* Ordered list type legal identifiers as can be defined in the ATTR_TYPE of the OL_TAG
*/
private static final char[] ORDERED_LIST_TYPE_IDENTIFIERS = {'1','A','a','I','i'};
/**
* Inidcates whether this component should load CSS files and consider STYLE tag and attributes when available..
* Note that CSS requires to create significantlly more containers, as almost every tag needs to be in its own container
* in order to manipulate style attributes like bgcolor, border etc. This is why the developer can disable CSS.
* Currently this is a private variable, once CSS is actually available this will be exposed via public getter/setter.
* Also there's no point setting this to true in this release as it will not lead to actual CSS, but just prepare containers for it.
*/
boolean loadCSS = SUPPORT_CSS;
/**
* If true than all active controls will be added event listeners and dispatch them via HTMLCallback
* Default is false in order not to add overhead when this feature is not needed
*/
boolean eventsEnabled = false;
HTMLParser parser;
int contCount=0; // debug for CSS
/**
* Style sheets embedded directly into the style tag (not the style attribute)
*/
private Vector embeddedCSS;
/**
* External style sheets referenced from LINK tags
*/
private Vector externalCSS;
/**
* The default background color of an HTML document, can be changed with the BGCOLOR attribute in the BODY tag or via CSS
*/
static final int DEFAULT_BGCOLOR = 0xffffff;
/**
* The default color of text in HTML documents, can be changed with the TEXT attribute in the BODY tag or via CSS
*/
static final int DEFAULT_TEXT_COLOR = 0;
/**
* The default color of links in HTML documents, can be changed with the LINK attribute in the BODY tag or via CSS
*/
static private final int DEFAULT_LINK_COLOR = 0x0000ff;
// Document colors
private int bgColor=DEFAULT_BGCOLOR;
private int textColor=DEFAULT_TEXT_COLOR;
private int linkColor=DEFAULT_LINK_COLOR;
// Refrences to helper classes and delegates
private DocumentRequestHandler handler; // The HTMLComponent's request handler
private RedirectThread redirectThread; // A refrence to a redirection thread if exists
private ResourceThreadQueue threadQueue; // A reference to the ResourceThreadQueue that handles asynchronous image download
private HTMLCallback htmlCallback;
private HTMLEventsListener eventsListener;
// Page info and status
private DocumentInfo docInfo; // The DocumentInfo object associated with this document
private HTMLElement document; // The page DOM representation
private String pageURL; // The current page's URL
private int pageStatus=HTMLCallback.STATUS_NONE; // The page's status (See HTMLCallback)
private boolean pageError; // true if there was an error during the page building process
private String title; // The page's title (as obtained from the TITLE tag in the HEAD tag)
private int displayWidth; // Used to store the display width to detect width changes later on.
private boolean cancelled; // true if the page was cancelled (Signals all processing to stop)
private boolean cancelledCaught; //true if the cancel signal was already caught (Used to avoid multiple cancel handling)
boolean showImages=true; //true to download image, false otherwise
private Style pageStyle; // The page's user defined style
private String pageUIID; // The page's user defined UIID
// Links related
private Hashtable accessKeys = new Hashtable();// A hastable containing all the access keys in this document and their respective links
private Hashtable anchors;// A hashtable containing all the anchors of this document
private Hashtable inputFields; // A hashtable containing all the input fields in the page. Used for FOR labels
Component firstFocusable; // The first focusable link on the page
//Font
HTMLFont defaultFont = DEFAULT_FONT; // The default font for all pages
// this variable is only useful with the properties mostly for the purpose of the resource editor GUI builder
private String htmlBody;
// The following variables are used when building the component from the document.
// After the component construction they are not used (Basically they can all be considered as "temporary" variables,
// but due to the recursive nature of the document building operation, they are defined as members)
//Containers
/**
* The main container is the top-level container to which other containers are added when building the page.
* After the page was built the main container is added to the HTMLComponent.
* We do not build directly on the HTMLComponent to allow the building process to be performed not in the EDT thread.
*/
private Container mainContainer;
/**
* curContianer is the current container we are adding components to. AT the start it is the main container.
* Later on it can be a certain table cell or a fieldset.
*/
private Container curContainer;
private boolean autoFocus = true; // Determines whether to auto-focus on the first link after page load
/**
* curLine is the basic container to which components are added in the building process.
* Components are added to it horizontally and when there no more space left (or a newline is needed) - it is added to the curContainer
*/
private Container curLine;
// Layouting - NOTE: In FIXED_WIDTH mode this component assumes the full width of the screen and performs text wrapping due to a bug in the combination of FlowLayout inside BoxLayout. In non fixed width mode the variables x & width are not used.
private int x; // Holds the horizontal position in the curLine container
private int width; // Holds the width available to each line
private int leftIndent; // Holds the current left margin (can be changed by tags)
private boolean lastWasEmpty; // true if the last line was empty, used to prevent unneeded multiple row spacing
// Font
private HTMLFont font; // Holds the current used font (starts with defaultFont and changes according to various tags and attributes)
// Links
private String link; // The current link address (so when a text is processed, we know to attribute it to this link)
private HTMLLink mainLink; // The "main" link. If a link spans over 2 or more lines, the first segment is considered the "main" link and is responsible for highlighting all segments when focused.
private char accesskey='\0'; // The current accesskey for a link
private String anchor; // The current page anchor
private boolean linkVisited; // True if the current link address was visited
// Forms
private HTMLForm curForm; // The current HTMLForm to which input fields should be added
private TextArea curTextArea; // The current TextArea
private List curComboBox; // The current ComboBox
private boolean optionTag; // true if an option tag is open
private boolean optionSelected; //true if the current option is marked as selected (i.e. the default selection)
private String optionValue; // The current option value
private Hashtable textfieldsToForms; // A hashtable that maps all input fields to their corresponding forms
// Lists
private int ulLevel; //Unordered list level (Used to display the right bullet)
private int olIndex; //Index of the current item in the list
private Vector olUpperLevelIndex;// = new Vector(); //Used to save the index when nesting
private int listType; // The type of the current list
private int listIndent; // Holds the current list margin
// Tables
private Vector tables;// A vector used for nesting, when a table contains a table ,the current one is "pushed" into the vector, to be "popped" later when the nested table processing ends.
private Vector tableCells;// A vector used for nesting of table cells
HTMLTableModel curTable; // The model of the currently collected table
// Misc. tags
private Vector fieldsets; // A vector used to support FIELDSET tag nesting
private int preTagCount=0; // A counter used to support PRE tag nesting
private int quoteTagCount=0; // A counter used to support QUOTE tag nesting
private String labelForID; // Collects <label for="id">
//HTML 4
private int underlineCount;
private int strikethruCount;
private int textDecoration;
private Hashtable imageMapComponents;
private Hashtable imageMapData;
private ImageMapData curImageMap;
private int superscript; // keeps track of current superscript level (negative means subscript)
private int maxSuperscript; // keeps track of teh maximal superscript value of the current line
Hashtable counters; // CSS content counters
private Vector containers=new Vector();
//private Vector elementsWithStyleAttr=new Vector();
Vector marqueeComponents = new Vector();
private Motion marqueeMotion;
/**
* This static segment sets up the INPUT_TYPES vector with values from INPUT_TYPE_STRINGS.
* This is used later on for lookup.
*/
static {
for(int i=0;i<INPUT_TYPE_STRINGS.length;i++) {
INPUT_TYPES.addElement(INPUT_TYPE_STRINGS[i]);
}
}
/**
* Sets the given LWUIT font for use with HTMLComponents.
*
* The font key can contain information about the following attributes:
*
* * The font family - i.e. Arial, Times New Roman etc.
* * The font size - in pixels (i.e. 12, 14 etc.)
* * The font style - bold, italic or both (no need to specify plain)
* * The font tag assignments - if this font should be used for any HTML specific tags they should be specified - i.e. h1, kbd etc.
*
* The key is just a concatenation of all attributes seperated with a dot.
* Examples for valid keys:
* arial.12 - Describes a plain font from the arial family in size 12
* arial.16.bold - A bold arial font in size 16
* courier.italic.bold.20 - A bold and italic courier font in size 20
* arial.20.h1 - A plain arial font, size 20, that should be used for contents of the H1 tag
* code.kbd.samp - A font that should be used for the CODE, KBD and SAMP tags
*
* Note that the order of the attributes is not important and also that the case is ignored.
* This means that arial.12.bold.italic.h3 is equivalent to itALIc.H3.arial.BOLD.12
*
* Also note that while you do not have to provide all the info for the font, but the info helps the rendering engine to reuse fonts when suitable.
* For example, if you have a 16px arial bold font which you want to use for H2, you can simply add it as "h2", but if you add it as "arial.16.bold.h2"
* then if the current font is arial.16 and the renderer encounters a B tag, it will know it can use the font you added as the bold counterpart of the current font.
*
* When adding system fonts there is no need to describe the font, the usage of setFont with system fonts is usually just to assign them for tags.
* The rendering engine knows to derive bold/italic/bigger/smaller fonts from other system fonts (default or tag fonts) even if not added.
*
* @param fontKey The font key in the format described above
* @param font The actual LWUIT font object
*/
public static void addFont(String fontKey, Font font) {
if (fontKey!=null) {
fontKey=fontKey.toLowerCase();
} else {
if (font.getCharset()!=null) {
throw new IllegalArgumentException("Font key must be non-null for bitmap fonts");
}
}
fonts.put(fontKey,new HTMLFont(fontKey,font));
}
/**
* Sets a custom HTMLParser for this HTMLComponent
* By default, a new HTMLParser instance is created for each HTMLComponent, use this method if you have a custom parser.
*
* @param parser The HTMLParser to use
*/
public void setParser(HTMLParser parser) {
this.parser.setParserCallback(null); //remove the callback
this.parser.setHTMLComponent(null); // remove the HTMLComponent
this.parser=parser;
parser.setHTMLComponent(this);
parser.setParserCallback(htmlCallback);
}
/**
* Adds the given symbol and code to the user defined char entities table.
* Symbols do not need to include leading & and trailing ; - these will be trimmed if given as the symbol
*
* @param symbol The symbol to add
* @param code The symbol's code
*/
public void addCharEntity(String symbol,int code) {
parser.addCharEntity(symbol, code);
}
/**
* Adds support for a special key to be used as an accesskey.
* The CSS property -wap-accesskey supports special keys, for example "phone-send" that may have different key codes per device.
* This method allows pairing between such keys to their respective key codes.
* Note that these keys are valid only for -wap-aceesskey in CSS files, and not for the XHTML accesskey attribute.
*
* @param specialKeyName The name of the special key as denoted in CSS files
* @param specialKeyCode The special key code
*/
public static void addSpecialKey(String specialKeyName,int specialKeyCode) {
if (SUPPORT_CSS) {
CSSEngine.addSpecialKey(specialKeyName, specialKeyCode);
} else {
System.out.println("HTMLComponent.addSpecialKey: LWUIT was compiled with HTMLComponent.SUPPORT_CSS false, this method has no effect");
}
}
/**
* Adds the given symbols array to the user defined char entities table with the startcode provided as the code of the first string, startcode+1 for the second etc.
* Some strings in the symbols array may be null thus skipping code numbers.
*
* @param symbols The symbols to add
* @param startcode The symbol's code
*/
public void addCharEntitiesRange(String[] symbols,int startcode) {
parser.addCharEntitiesRange(symbols, startcode);
}
/**
* Sets the maximum number of threads to use for image download
*
* @param threadsNum the maximum number of threads to use for image download
*/
public static void setMaxThreads(int threadsNum) {
ResourceThreadQueue.setMaxThreads(threadsNum);
}
/**
* Sets the supported CSS media types to the given strings.
* Usually the default media types ("all","handheld") should be suitable, but in case this runs on a device that matches another profile, the developer can specify it here.
*
* @param supportedMediaTypes A string array containing the media types that should be supported
*/
public static void setCSSSupportedMediaTypes(String[] supportedMediaTypes) {
if (SUPPORT_CSS) {
CSSParser.setCSSSupportedMediaTypes(supportedMediaTypes);
} else {
System.out.println("HTMLComponent.setCSSSupportedMediaTypes: LWUIT was compiled with HTMLComponent.SUPPORT_CSS false, this method has no effect");
}
}
/**
* Constructs HTMLComponent
*/
public HTMLComponent() {
this(new DefaultDocumentRequestHandler());
}
/**
* Constructs HTMLComponent
*
* @param handler The HttpRequestHandler to which all requests for links will be sent
*/
public HTMLComponent(DocumentRequestHandler handler) {
setLayout(new BorderLayout());
this.handler=handler;
threadQueue=new ResourceThreadQueue(this);
if (eventsEnabled) {
eventsListener=new HTMLEventsListener(this);
}
setHandlesInput(true);
setScrollableY(true);
setScrollableX(false);
setSmoothScrolling(true);
//Create some default fonts
HTMLFont italic=new HTMLFont(null,Font.createSystemFont(Font.FACE_SYSTEM, Font.STYLE_ITALIC, Font.SIZE_MEDIUM));
HTMLFont monospace=new HTMLFont(null, Font.createSystemFont(Font.FACE_MONOSPACE, Font.STYLE_PLAIN, Font.SIZE_MEDIUM));
//Assign default fonts to some tags
fonts.put(HTMLElement.TAG_NAMES[HTMLElement.TAG_EM], italic);
fonts.put(HTMLElement.TAG_NAMES[HTMLElement.TAG_STRONG], new HTMLFont(null,Font.createSystemFont(Font.FACE_SYSTEM, Font.STYLE_BOLD, Font.SIZE_MEDIUM)));
fonts.put(HTMLElement.TAG_NAMES[HTMLElement.TAG_DFN], italic);
fonts.put(HTMLElement.TAG_NAMES[HTMLElement.TAG_CODE], monospace);
fonts.put(HTMLElement.TAG_NAMES[HTMLElement.TAG_SAMP], monospace);
fonts.put(HTMLElement.TAG_NAMES[HTMLElement.TAG_KBD], monospace);
fonts.put(HTMLElement.TAG_NAMES[HTMLElement.TAG_VAR], italic);
fonts.put(HTMLElement.TAG_NAMES[HTMLElement.TAG_CITE], italic);
fonts.put(HTMLElement.TAG_NAMES[HTMLElement.TAG_PRE], monospace);
fonts.put(HTMLElement.TAG_NAMES[HTMLElement.TAG_H1], new HTMLFont(null, Font.createSystemFont(Font.FACE_SYSTEM, Font.STYLE_BOLD, Font.SIZE_LARGE)));
fonts.put(HTMLElement.TAG_NAMES[HTMLElement.TAG_H2], new HTMLFont(null, Font.createSystemFont(Font.FACE_SYSTEM, Font.STYLE_ITALIC, Font.SIZE_LARGE)));
fonts.put(HTMLElement.TAG_NAMES[HTMLElement.TAG_H3], new HTMLFont(null, Font.createSystemFont(Font.FACE_SYSTEM, Font.STYLE_BOLD, Font.SIZE_MEDIUM)));
// The TT (Teletype) tag is not part of XHTML-MP 1.0 but is supported anyway
fonts.put(HTMLElement.TAG_NAMES[HTMLElement.TAG_TT], monospace);
parser=new HTMLParser(); //HTMLParser.getHTMLParserInstance();
parser.setHTMLComponent(this);
}
/**
* Returns the document request handler
*
* @return the document request handler
*/
public DocumentRequestHandler getRequestHandler() {
return handler;
}
/**
* Returns the DocumentInfo that currently represents the document loaded/shown
*
* @return the DocumentInfo that currently represents the document loaded/shown
*/
public DocumentInfo getDocumentInfo() {
return docInfo;
}
/**
* Sets an HTMLCallback to listen to this HTMLCOmponent
*
* @param callback The HTMLCallback that will receive events
*/
public void setHTMLCallback(HTMLCallback callback) {
htmlCallback=callback;
parser.setParserCallback(htmlCallback);
if (SUPPORT_CSS) {
CSSParser.getInstance().setCSSParserCallback(htmlCallback);
}
}
/**
* Returns the HTMLCallback that is set on this HTMLComponent
*
* @return the HTMLCallback that is set on this HTMLComponent or null if none
*/
public HTMLCallback getHTMLCallback() {
return htmlCallback;
}
/**
* Sets the default font for this HTMLComponent
*
* @param fontKey The font key in the format described in setFont (Can be null for default font, but it is recommended to add a descriptive key if this is a bitmap font to enable the font engine to use it in other cases as well)
* @param font The actual LWUIT font object
*/
public void setDefaultFont(String fontKey, Font font) {
if (fontKey!=null) {
fontKey=fontKey.toLowerCase();
}
defaultFont=new HTMLFont(fontKey, font);
if (fontKey!=null) {
fonts.put(fontKey,defaultFont);
}
}
/**
* Sets whether this HTMLComponent will download and show linked images or not
*
* @param show true to show images, false otherwise
*/
public void setShowImages(boolean show) {
showImages=show;
}
/**
* Sets whether this HTMLComponent will ignore all CSS.directives.
* This includes external CSS files (which won't be downloaded), embedded CSS segmentsand style tags and attributes.
* By default this is false.
*
* @param ignore true to ignore CSS directives, false otherwise
*/
public void setIgnoreCSS(boolean ignore) {
if (SUPPORT_CSS) { // If not supporting CSS, the loadCSS flag is locked on false
loadCSS=!ignore;
}
}
/**
* Scrolls the HTMLComponent several pixels forward/backward.
*
* @param pixels The number of pixels to scroll (positive for forward and negative for backward)
* @param animate true to animate the scrolling, false otherwise
*/
public void scrollPixels(int pixels,boolean animate) {
int scrollToY=getScrollY()+pixels;
scrollTo(scrollToY,animate);
}
/**
* Scrolls the HTMLComponent several pages forward/backward.
* TO scroll to the start or end of the document, one can provide a very big number.
*
* @param pages The number of pages to scroll (positive for forward and negative for backward)
* @param animate true to animate the scrolling, false otherwise
*/
public void scrollPages(int pages,boolean animate) {
int scrollToY=getScrollY()+getHeight()*pages;
scrollTo(scrollToY,animate);
}
/**
* Scrolls the HTMLComponent to the specified element
*
* @param element The element to scroll to (must be contained in the document)
* @param animate true to animate the scrolling, false otherwise
* @throws IllegalArgumentException if the element is not contained in the current document.
*/
public void scrollToElement(HTMLElement element,boolean animate) {
if (!pageLoading()) {
if (!document.contains(element)) {
throw new IllegalArgumentException("The specified element is not contained in the current document.");
}
Vector v=element.getUi();
if ((v!=null) && (v.size()>0)) {
Component cmp=((Component)v.firstElement());
if (cmp!=null) {
Container parent=cmp.getParent();
int y=cmp.getY();
while ((parent!=null) && (parent!=this)) {
y+=parent.getY();
parent=parent.getParent();
}
scrollTo(y , animate);
}
}
} else {
throw new IllegalStateException("Page is still loading");
}
}
/**
* Scrolls the HTMLComponent to the denoted Y position
*
* @param y The Y-coordinate to scroll to
* @param animate true to animate the scrolling, false otherwise
*/
private void scrollTo(int y,boolean animate) {
if (y<0) {
y=0;
} else if (y>getPreferredH()-getHeight()) {
y=getPreferredH()-getHeight();
}
if (animate) {
scrollRectToVisible(getX(), y, getWidth(), getHeight(), this);
} else {
setScrollY(y);
}
}
/**
* Sets the given string containing HTML code as this HTMLComponent's body
*
* @param htmlText The HTML body to set
*/
public void setBodyText(String htmlText) {
setBodyText(htmlText, null);
}
/**
* Sets the given string containing HTML code as this HTMLComponent's body.
* The string is read using the specified encoding. If the encoding is not supported it will be read without encoding
*
* @param htmlText The HTML body to set
* @param encoding The encoding to use when reading the HTML i.e. UTF8, ISO-8859-1 etc.
* @return true if the encoding succeeded, false otherwise
*/
public boolean setBodyText(String htmlText,String encoding) {
return setHTML(htmlText, encoding, null,false);
}
/**
* Sets the given string containing HTML code either as this HTMLComponent's body or as the full HTML.
* The string is read using the specified encoding. If the encoding is not supported it will be read without encoding
*
* @param htmlText The HTML to set
* @param encoding The encoding to use when reading the HTML i.e. UTF8, ISO-8859-1 etc.
* @param title The HTML title, or null if none (Used only when isFullHTML is false)
* @param isFullHTML true if this is a full HTML document (with html/body tags), false if this HTML should be used as the HTMLComponent's body
* @return true if the encoding succeeded, false otherwise
*/
public boolean setHTML(String htmlText,String encoding,String title,boolean isFullHTML) {
boolean success=true;
InputStreamReader isr = getStream(htmlText, encoding, title ,isFullHTML);
if (isr==null) {
isr=getStream("Encoding error loading string", null, title, isFullHTML); //TODO - dynamic error messages
success=false;
}
final InputStreamReader isReader=isr;
new Thread() {
public void run() {
HTMLElement doc = parser.parseHTML(isReader);
documentReady(null, doc);
}
}.start();
return success;
}
/**
* Convenience method that calls getStream(String,String,String,boolean)
*
* @param htmlText The HTML to set
* @param encoding The encoding to use when reading the HTML i.e. UTF8, ISO-8859-1 etc.
* @return A stream representing the HTML
*/
private InputStreamReader getStream(String htmlText,String encoding) {
return getStream(htmlText, encoding, null, false);
}
/**
* Obtains a stream of the given HTML with the given encoding
*
* @param htmlText The HTML to set
* @param encoding The encoding to use when reading the HTML i.e. UTF8, ISO-8859-1 etc.
* @param title The HTML title, or null if none
* @param isFullHTML true if this is a full HTML document (with html/body tags), false otherwise
* @return A stream representing the HTML
*/
private InputStreamReader getStream(String htmlText,String encoding,String title,boolean isFullHTML) {
if (!isFullHTML) {
String titleStr="";
if (title!=null) {
titleStr="<head><title>"+title+"</title></head>";
}
htmlText="<html>"+titleStr+"<body>"+htmlText+"</body></html>";
}
ByteArrayInputStream bais = null;
if (encoding!=null) {
try {
bais = new ByteArrayInputStream(htmlText.getBytes(encoding));
} catch (UnsupportedEncodingException ex) {
ex.printStackTrace();
}
}
if (bais==null) { //encoding wasn't specified or failed
bais=new ByteArrayInputStream(htmlText.getBytes());
}
InputStreamReader isr=null;
if (encoding!=null) {
try {
isr = new InputStreamReader(bais,encoding);
} catch (UnsupportedEncodingException uee) {
uee.printStackTrace();
}
}
if (isr==null) { //encoding wasn't specified or failed
isr = new InputStreamReader(bais);
}
return isr;
}
/**
* Cancels the loading of the current page
*/
public void cancel() {
cancelled=true;
setPageStatus(HTMLCallback.STATUS_CANCELLED);
cancelRedirectsAndImages();
}
/**
* Adds the specified cssElement which represents an external CSS file to the external CSS vector
*
* @param cssElement The element to add
*/
void addToExternalCSS(CSSElement cssElement) {
if (externalCSS==null) {
externalCSS=new Vector();
}
externalCSS.addElement(cssElement);
}
/**
* Adds the specified cssElement which represents an embedded CSS segment to the embedded CSS vector
*
* @param cssElement The element to add
*/
void addToEmebeddedCSS(CSSElement cssElement) {
if (embeddedCSS==null) {
embeddedCSS=new Vector();
}
embeddedCSS.addElement(cssElement);
}
/**
* Sets this HTMLComponent to render the document in the specified URL
*
* @param pageURL The URL containing the HTML document
*/
public void setPage(final String pageURL) {
setPage(new DocumentInfo(pageURL));
}
/**
* Sets the style of the page, allowing for example to set transparency to the main page.
* This applies not only to the current page, but rather to all pages created with this HTMLComponent instance.
* If both a UIID and a pageStyle were set, the style overrides the UIID.
*
* @param pageStyle The style to set to the page
*/
public void setPageStyle(Style pageStyle) {
this.pageStyle=pageStyle;
if ((mainContainer!=null) && (pageStyle!=null)) {
applyPageStyle();
}
}
/**
* Sets the UIID of the page (the internal container)
* This applies not only to the current page, but rather to all pages created with this HTMLComponent instance.
* If both a UIID and a pageStyle were set, the style overrides the UIID.
*
* @param pageUIID The UIID that should be applied to the page
*/
public void setPageUIID(String pageUIID) {
this.pageUIID=pageUIID;
if ((mainContainer!=null) && (pageUIID!=null)) {
mainContainer.setUIID(pageUIID);
}
}
/**
* Applies the user defined page style to the main container. This clones the page style and sets the clone to the page, as various CSS directives may change the style of the main container.
*/
private void applyPageStyle() {
Style pageStyleCopy=new Style(pageStyle);
mainContainer.setUnselectedStyle(pageStyleCopy);
mainContainer.setSelectedStyle(pageStyleCopy);
}
private void cancelCurrent() {
cancelRedirectsAndImages();
if ((pageStatus==HTMLCallback.STATUS_REQUESTED) ||
(pageStatus==HTMLCallback.STATUS_CONNECTED) ||
(pageStatus==HTMLCallback.STATUS_PARSED)) { //previous page still loading
cancel();
// TODO - This mechanism is far from ideal - handle better page life cycle
int waitTime=0;
while ((pageStatus!=htmlCallback.STATUS_CANCELLED) && (waitTime<2500)) {
System.out.println("Waiting for previous page to cancel "+System.currentTimeMillis());
try { Thread.sleep(50); } catch (Exception e) { }
waitTime+=50;
}
}
cancelled=false;
cancelledCaught=false;
if (CLEAN_ON_PAGE_REQUEST) {
cleanup();
removeAll();
revalidate();
}
}
// debug method for performance measurement
/*void clickTimer(String str) {
if (str==null) {
startTime=System.currentTimeMillis();
textTime=0;
msg="";
} else {
msg+=str+":"+(System.currentTimeMillis()-startTime)+"\n";
}
}*/
/**
* Sets this HTMLComponent to render the document specified in the DocumentInfo object
*
* @param docInfo Containing info about the document (url, encoding etc)
*/
void setPage(final DocumentInfo docInfo) {
cancelCurrent();
//clickTimer(null);
this.docInfo=docInfo; // Moved here since when getting CSS imports in embedded style segments, we need to know the relative URL
if (handler instanceof AsyncDocumentRequestHandler) {
setPageStatus(HTMLCallback.STATUS_REQUESTED);
((AsyncDocumentRequestHandler)handler).resourceRequestedAsync(docInfo,HTMLComponent.this);
} else {
new Thread() {
public void run() {
setPageStatus(HTMLCallback.STATUS_REQUESTED);
InputStream is=handler.resourceRequested(docInfo);
streamReady(is,docInfo);
}
}.start();
}
}
/**
* This method should be called only by AsyncDocumentRequestHandler implementations after an async fetch of a document
*
* @param is The InputStream of the document
* @param docInfo The document info
*/
public void streamReady(InputStream is,DocumentInfo docInfo) {
InputStreamReader isr=null;
try {
if (is!=null) {
isr = new InputStreamReader(is,docInfo.getEncoding());
}
} catch (Exception uee) {
boolean cont=true;
if (htmlCallback!=null) {
cont=htmlCallback.parsingError(HTMLCallback.ERROR_ENCODING,null ,null,null,"Page encoding "+docInfo.getEncoding()+" failed: "+uee.getMessage());
}
if (cont) { //retry without the encoding
try {
isr = new InputStreamReader(is);
} catch (Exception e) {
htmlCallback.parsingError(HTMLCallback.ERROR_ENCODING,null ,null,null,"Page loading failed, probably due to wrong encoding. "+e.getMessage());
isr = getStream("Page loading failed, probably due to encoding mismatch.", null);
setPageStatus(HTMLCallback.STATUS_ERROR);
}
} else {
isr = getStream("Page encoding not supported", null);
setPageStatus(HTMLCallback.STATUS_ERROR);
}
}
if (cancelled) {
isr=getStream("Page loading cancelled by user",null);
}
if (isr==null) {
if (htmlCallback!=null) {
htmlCallback.parsingError(HTMLCallback.ERROR_CONNECTING, null, null, null, "Error connecting to stream");
}
setPageStatus(HTMLCallback.STATUS_ERROR);
isr = getStream("Error connecting to stream", null); //TODO - dynamic error messages
} else {
setPageStatus(HTMLCallback.STATUS_CONNECTED);
}
HTMLElement newDoc=null;
try {
newDoc=parser.parseHTML(isr);
} catch (IllegalArgumentException iae) {
iae.printStackTrace();
setPageStatus(HTMLCallback.STATUS_ERROR);
isr = getStream("Parsing error "+iae.getMessage(), null);
newDoc=parser.parseHTML(isr);
}
if (cancelled) {
isr=getStream("Page loading cancelled by user",null);
newDoc=parser.parseHTML(isr);
}
setPageStatus(HTMLCallback.STATUS_PARSED);
documentReady(docInfo, newDoc);
}
/**
* Sets this HTMLComponent to render the document in the specified DOM.
* Note that relative links if any will be disabled. To allow relative links with DOM use setDOM(HTMLElement dom,String baseURL)
*
* @param dom An HTMLElement representing the root of the HTML document
* @throws IllegalArgumentException if the HTMLElement supplied is not an 'html' tag
*/
public void setDOM(HTMLElement dom) {
setDOM(dom, null);
}
/**
* Sets this HTMLComponent to render the document in the specified DOM
*
* @param dom An HTMLElement representing the root of the HTML document
* @param baseURL The base URL for this DOM (Necessary if document references relative links)
* @throws IllegalArgumentException if the HTMLElement supplied is not an 'html' tag
*/
public void setDOM(HTMLElement dom,String baseURL) {
if (dom.getTagId()!=HTMLElement.TAG_HTML) {
throw new IllegalArgumentException("HTML root element must be 'html'");
}
cancelCurrent();
if (baseURL!=null) {
docInfo=new DocumentInfo(baseURL);
} else {
docInfo=null;
}
documentReady(docInfo, dom);
}
private boolean pageLoading() {
return ((pageStatus==HTMLCallback.STATUS_REQUESTED) ||
(pageStatus==HTMLCallback.STATUS_CONNECTED) ||
(pageStatus==HTMLCallback.STATUS_PARSED));
}
/**
* Returns the DOM representing this document
*
* @return An HTMLElement representing the entire current HTML document
* @throws IllegalStateException if the page is still loading
*/
public HTMLElement getDOM() {
if (pageLoading()) {
throw new IllegalStateException("Page is still loading");
}
return document;
}
/**
* Refreshes the current DOM so it any changes done after loading will be rendered.
*/
public void refreshDOM() {
documentReady(docInfo, document);
}
/**
* Called internally after both reading and parsing of the HTML document has completed
*
* @param pageURL The URL of the page
* @param newDocument An element which is the root of the document
*/
void documentReady(DocumentInfo docInfo,HTMLElement newDocument) {
//clickTimer("docReady");
this.pageURL=null;
if (docInfo!=null) {
this.pageURL=docInfo.getUrl();
}
cleanup();
document=newDocument;
rebuildPage();
//clickTimer("rebuilt");
if ((!cancelled) || (cancelledCaught)) {
Display.getInstance().callSerially(new Runnable() {
public void run() {
if (threadQueue.getCSSCount()==-1) {
displayPage();
}
//if ( ((!showImages) || (threadQueue.getQueueSize()==0)) {
if (threadQueue.getQueueSize()==0) {
setPageStatus(HTMLCallback.STATUS_COMPLETED);
} else {
threadQueue.startRunning();
}
if (pageURL!=null) { // pageURL can be null if the page was set using setBodyText and not setPage
int hash=pageURL.indexOf('#');
if ((hash!=-1) && (pageURL.length()>hash+1)) { // URL contains an anchor
String anchorName=pageURL.substring(hash+1);
goToAnchor(anchorName);
}
}
}
});
} else { // Page was cancelled
InputStreamReader isr=getStream("Page loading cancelled by user",null);
HTMLElement newDoc=parser.parseHTML(isr);
documentReady(docInfo, newDoc);
}
}
void cssCompleted() {
Display.getInstance().callSerially(new Runnable() {
public void run() {
displayPage();
}
});
}
/**
* Sets whether the active controls in the HTML will trigger events, and whether the DOM will change dynamically due to user input.
* If so the events are dispatched via HTMLCallback methods actionPerformed, focusGained/Lost, selectionChanged and dataChanged
* The default is false in order not to add more overhead if these are not needed.
*
* @param enabled true to enable event dispatching, false otherwise
*/
public void setEventsEnabled(boolean enabled) {
if (eventsEnabled!=enabled) {
eventsEnabled=enabled;
if (!enabled) {
eventsListener.deregisterAll();
eventsListener=null;
} else {
eventsListener=new HTMLEventsListener(this);
}
}
}
/**
* Returns the current status of the events enabled flag
*
* @return true if events are enabled, false if not
*/
public boolean isEventsEnabled() {
return isEventsEnabled();
}
/**
* Determines whether to auto-focus on the first link after page load
* Note that focusing will happen only if the link is within a visible range (no scrolling is performed since this is rarely a wanted behaviour in this case)
*
* @param autoFocus true to auto-focus, false otherwise
*/
public void setAutoFocusOnFirstLink(boolean autoFocus) {
this.autoFocus=autoFocus;
}
/**
* Actually displays the HTML page - this should be run on EDT
*/
void displayPage() {
removeAll();
addComponent(BorderLayout.CENTER,mainContainer);
setScrollY(0);
revalidate();
repaint();
//Places the focus on the first link in the page, as long as it is within the visible area of the first page
if (getComponentForm()!=null) {
getComponentForm().revalidate(); // a revalidate on the component itself does not always result in correct size calculation, thus leaving unreachable elements in the HTML (Note that the first revalidate on the component is also necessary)
if (firstFocusable!=null) {
if (autoFocus) {
if (firstFocusable.getY()<getHeight()) {
getComponentForm().setFocused(firstFocusable);
} else {
getComponentForm().setFocused(mainContainer);
}
}
} else {
mainContainer.setFocusable(true); // If there are no focused components, the main container will become focusable, thus enabling it to be pixel-scrolled
getComponentForm().setFocused(mainContainer);
}
if (marqueeComponents.size()>0) {
getComponentForm().registerAnimated(HTMLComponent.this);
int dir=UIManager.getInstance().getLookAndFeel().isRTL()?1:-1;
marqueeMotion=Motion.createLinearMotion(0, dir*HTMLComponent.this.getWidth(), MARQUEE_DELAY/2);
marqueeMotion.start();
}
}
setPageStatus(HTMLCallback.STATUS_DISPLAYED);
if (getComponentForm()!=null) {
getComponentForm().revalidate();
}
}
public boolean animate() {
boolean result=super.animate();
if (marqueeMotion==null) {
return result;
}
for (Enumeration e=marqueeComponents.elements();e.hasMoreElements();) {
Component cmp=(Component)e.nextElement();
cmp.setX(marqueeMotion.getValue());
}
if (marqueeMotion.isFinished()) {
int dir=UIManager.getInstance().getLookAndFeel().isRTL()?1:-1;
marqueeMotion=Motion.createLinearMotion(dir*-HTMLComponent.this.getWidth(), dir*HTMLComponent.this.getWidth(), MARQUEE_DELAY);
marqueeMotion.start();
}
return true;
}
/**
* Returns the HTML page's title as described in its TITLE tag
*
* @return the HTML page's title as described in its TITLE tag
*/
public String getTitle() {
return title;
}
/**
* Returns the page's URL
*
* @return the current page's URL
*/
public String getPageURL() {
return pageURL;
}
/**
* Returns the page status
*
* @return the page status (One of the STATUS_* constants in HTMLCallback)
*/
public int getPageStatus() {
return pageStatus;
}
/**
* Sets the page status to the given one
*
* @param status The new page status
*/
void setPageStatus(final int status) {
if ((!pageError) || (status==HTMLCallback.STATUS_REQUESTED)) { //Once the page error flag has been raised the page status doesn't change until a new page is requested
pageStatus=status;
// Performance measurement debug code
/*if (status==HTMLCallback.STATUS_COMPLETED) {
System.out.println("Completed: "+(System.currentTimeMillis()-startTime));
if (!pageURL.startsWith("file:///")) {
clickTimer("Comp");
msg+="Text:"+textTime+"\n";
Dialog.show("Time", msg, "OK", "Cancel");
}
} else if (status==HTMLCallback.STATUS_DISPLAYED) {
System.out.println("Displayed: "+(System.currentTimeMillis()-startTime));
clickTimer("Disp");
}*/
if (htmlCallback!=null) {
if (Display.getInstance().isEdt()) {
htmlCallback.pageStatusChanged(this, status, pageURL);
} else {
Display.getInstance().callSerially(new Runnable() {
public void run() {
htmlCallback.pageStatusChanged(HTMLComponent.this, status, pageURL);
}
});
}
}
pageError=((status==HTMLCallback.STATUS_ERROR) || (status==HTMLCallback.STATUS_CANCELLED));
cancelledCaught=(status==HTMLCallback.STATUS_CANCELLED);
}
}
/**
* Returns the closest font by the given parameters
*
* @param family The font family
* @param size The font size
* @param style The font style (Font.STYLE_PLAIN or Font.STYLE_ITALIC)
* @param weight The font weight (Font.STYLE_PLAIN or Font.STYLE_BOLD)
* @return the closest font the HTMLComponent could find or null if none found.
*/
HTMLFont getClosestHTMLFont(String family, int size, int style, int weight) {
final int FACTOR_FONT_FAMILY = 30;
final int FACTOR_FONT_SIZE = 5;
final int FACTOR_FONT_STYLE = 10;
HTMLFont bestFit=null;
int bestFitDistance=10000;
Enumeration e=fonts.elements();
while (e.hasMoreElements()) {
int curFontDistance=0;
HTMLFont hFont=(HTMLFont)e.nextElement();
if ((MATCH_BITMAP_FONTS_ONLY) && (hFont.isSystemFont())) {
continue;
}
if (family!=null) {
if ((hFont.getFamily()==null) || (!hFont.getFamily().equalsIgnoreCase(family))) {
if (MATCH_SAME_FONT_FAMILY_ONLY) {
continue;
}
curFontDistance+=FACTOR_FONT_FAMILY;
}
}
if (size>0) {
curFontDistance+=Math.abs(size-hFont.getSizeInPixels())*FACTOR_FONT_SIZE;
}
if (weight>=0) {
if ((weight & Font.STYLE_BOLD)!=(hFont.getStyle() & Font.STYLE_BOLD)) {
curFontDistance+=FACTOR_FONT_STYLE;
}
}
if (style>=0) {
if ((style & Font.STYLE_ITALIC)!=(hFont.getStyle() & Font.STYLE_ITALIC)) {
curFontDistance+=FACTOR_FONT_STYLE;
}
}
if (curFontDistance<bestFitDistance) {
bestFitDistance=curFontDistance;
bestFit=hFont;
if (curFontDistance==0) { //exact match
break;
}
}
}
if ((bestFit==null) || ((MATCH_EXACT_FONTS_ONLY) && (bestFitDistance!=0))) {
return null;
} else {
return bestFit;
}
}
Font getClosestFont(String family, int size, int style, int weight) {
HTMLFont f=getClosestHTMLFont(family, size, style, weight);
if (f!=null) {
return f.getFont();
}
return null;
}
/**
* Returns the HTMLFont that holds the given font.
* This is in fact a "reverse lookup" for HTMLFonts
*
* @param font The font to search
* @return the HTMLFont that holds the given font.
*/
HTMLFont getHTMLFont(Font font) {
for (Enumeration e=fonts.elements();e.hasMoreElements();) {
HTMLFont hFont=(HTMLFont)e.nextElement();
if (hFont.getFont()==font) {
return hFont;
}
}
return null;
}
/**
* Returns true if there's at least one smallcaps font in the fonts repository, or false otherwise
*
* @return true if there's at least one smallcaps font in the fonts repository, or false otherwise
*/
boolean isSmallCapsFontAvailable() {
for (Enumeration e=fonts.elements();e.hasMoreElements();) {
HTMLFont hFont=(HTMLFont)e.nextElement();
if ((hFont.getFamily()!=null) && (hFont.getFamily().equals(CSSElement.SMALL_CAPS_STRING))) {
return true;
}
}
return false;
}
/**
* A utility method to convert between Element TAG_* constants and HTMLFont font attribute constants.
*
* @param tag The tag that describes the font attribute
* @param font The font for which we want a counterpart font
* @return the counterpart font for the given font in the specified tag sense.
*/
private HTMLFont getCounterpartFont(int tag,HTMLFont font) {
int attribute=-1;
switch(tag) {
case HTMLElement.TAG_B:
attribute=HTMLFont.BOLD;
break;
case HTMLElement.TAG_I:
attribute=HTMLFont.ITALIC;
break;
case HTMLElement.TAG_BIG:
attribute=HTMLFont.BIG;
break;
case HTMLElement.TAG_SMALL:
attribute=HTMLFont.SMALL;
break;
}
if (attribute==-1) {
return font;
}
return getCounterpartFontByAttribute(attribute, font);
}
/**
* Returns the counterpart font according to the given attribute and font
*
* @param attribute The requested attribute, one of HTMLFont.BOLD/ITALIC/BIG/SMALL
* @param font The source font
* @return the counterpart font according to the given attribute and font
*/
HTMLFont getCounterpartFontByAttribute(int attribute,HTMLFont font) {
HTMLFont cFont=font.getCounterpartFont(attribute);
if (cFont!=null) {
return cFont;
}
HTMLFont bestFit=null;
Enumeration e=fonts.elements();
while (e.hasMoreElements()) {
HTMLFont hFont=(HTMLFont)e.nextElement();
if (hFont.isCounterpart(attribute,font)) {
if (attribute==HTMLFont.BIG) { //takes the closests font (i.e. big but not biggest)
if ((bestFit==null) || (bestFit.getSize()>hFont.getSize())) {
bestFit=hFont;
}
} else if (attribute==HTMLFont.SMALL) {
if ((bestFit==null) || (bestFit.getSize()<hFont.getSize())) {
bestFit=hFont;
}
} else { // BOLD, ITALIC
font.setCounterpartFont(attribute,hFont);
return hFont;
}
}
}
if (bestFit==null) {
bestFit=font;
}
font.setCounterpartFont(attribute,bestFit);
return bestFit;
}
/**
* Cleans this element and its children of any associated UI components
*
* @param element The element to clean
*/
private void cleanElementUI(HTMLElement element) {
element.clearAssociatedComponents();
int children=element.getNumChildren();
for(int i=0;i<children;i++) {
HTMLElement child=(HTMLElement)element.getChildAt(i);
cleanElementUI(child);
}
}
/**
* Rebuilds the HTMLComponent, this is called usually after a new page was loaded.
*/
private void cleanup() {
if (document!=null) {
cleanElementUI(document);
}
if (eventsListener!=null) {
eventsListener.deregisterAll();
}
displayWidth=Display.getInstance().getDisplayWidth();
//reset all building process values
leftIndent=0;
x=0;
containers=new Vector();
//embeddedCSS=null; // Shouldn't nullify as embedded style tag is collected in the head phase which is before..
marqueeComponents = new Vector();
marqueeMotion=null;
anchors=new Hashtable();
anchor=null;
accesskey='\0';
for (Enumeration e=accessKeys.keys();e.hasMoreElements();) {
int keyCode=((Integer)e.nextElement()).intValue();
getComponentForm().removeKeyListener(keyCode,this);
}
accessKeys.clear(); //=new Hashtable();
fieldsets=new Vector();
curTable=null;
tables=new Vector();
tableCells=new Vector();
ulLevel=0;
olIndex=Integer.MIN_VALUE;
olUpperLevelIndex=new Vector();
listType=HTMLListIndex.LIST_NUMERIC;
underlineCount=0;
strikethruCount=0;
textDecoration=0;
imageMapComponents=null;
imageMapData=null;
curImageMap=null;
superscript=0;
maxSuperscript=0;
counters=null;
font=defaultFont;
labelForID=null;
inputFields=new Hashtable();
link=null;
linkVisited=false;
mainLink=null;
firstFocusable=null;
curForm=null;
curTextArea=null;
curComboBox=null;
textfieldsToForms=new Hashtable();
optionTag=false;
optionSelected=false;
preTagCount=0;
quoteTagCount=0;
mainContainer=new Container();
if (pageUIID!=null) {
mainContainer.setUIID(pageUIID);
}
if (pageStyle!=null) {
applyPageStyle();
}
mainContainer.setScrollableX(false);
mainContainer.setLayout(new BoxLayout(BoxLayout.Y_AXIS));
curContainer=mainContainer;
curLine=new Container();
lastWasEmpty=false;
width=Display.getInstance().getDisplayWidth()-getStyle().getMargin(Component.LEFT)-getStyle().getPadding(Component.LEFT)-
getStyle().getMargin(Component.RIGHT)-getStyle().getPadding(Component.RIGHT)-10; // The -10 is arbitrary to avoid edge cases
textColor=DEFAULT_TEXT_COLOR;
}
/**
* Handles a LINK tag and extracts any linked CSS file
*
* @param linkTag AN element containing the LINK tag
*/
private void handleLinkTag(HTMLElement linkTag) {
String linkType=linkTag.getAttributeById(HTMLElement.ATTR_TYPE);
String media=linkTag.getAttributeById(HTMLElement.ATTR_MEDIA);
String href=linkTag.getAttributeById(HTMLElement.ATTR_HREF);
String charset=linkTag.getAttributeById(HTMLElement.ATTR_CHARSET);
if ((linkType!=null) && (linkType.equalsIgnoreCase("text/css")) && (href!=null) && (CSSParser.getInstance().mediaTypeMatches(media))) {
if (docInfo!=null) {
threadQueue.addCSS(docInfo.convertURL(href),charset);
} else {
if (DocumentInfo.isAbsoluteURL(href)) {
threadQueue.addCSS(href,charset);
} else {
if (htmlCallback!=null) {
htmlCallback.parsingError(HTMLCallback.ERROR_NO_BASE_URL, linkTag.getTagName(),linkTag.getAttributeName(new Integer(HTMLElement.ATTR_HREF)),href,"Ignoring CSS file referred in a LINK tag ("+href+"), since page was set by setBody/setHTML/setDOM so there's no way to access relative URLs");
}
}
}
}
}
private void rebuildPage() {
// Scan for LINK tags directly under the ROOT element, these are in fact converted <?xml-stylesheet ... ?> processing instructions
// NOTE: Since only single root XML are supported, no converted tags can exist before the HTML tag
/*if ((SUPPORT_CSS) && (loadCSS)) {
for(int i=0;i<document.getNumChildren();i++) {
HTMLElement child=(HTMLElement)document.getChildAt(i);
if (child.getId()==HTMLElement.TAG_LINK) {
handleLinkTag(child);
}
}
}*/
// Get the HTML root tag and extract the HEAD and BODY (Note that the document tag is ROOT which contains HTML and so on.
//HTMLElement html=document.getChildById(HTMLElement.TAG_HTML);
HTMLElement html=null;
if (document.getTagId()==HTMLElement.TAG_HTML) {
html=document;
}
HTMLElement body=null;
HTMLElement head=null;
String dir=null;
if (html!=null) {
dir=html.getAttributeById(HTMLElement.ATTR_DIR);
body=html.getFirstChildByTagId(HTMLElement.TAG_BODY);
if ((!PROCESS_HTML_MP1_ONLY) && (body==null)) { // frames html does not contain body - but may contain a 'noframes' tag to display
Vector noFrames=html.getDescendantsByTagId(HTMLElement.TAG_NOFRAMES);
if ((noFrames!=null) && (noFrames.size()>0)) {
body=(HTMLElement)noFrames.elementAt(0);
}
}
head=html.getFirstChildByTagId(HTMLElement.TAG_HEAD);
}
// Fetch the document's title
title=null;
if (head!=null) {
HTMLElement baseTag=head.getFirstChildByTagId(HTMLElement.TAG_BASE);
if (baseTag!=null) {
String baseURL=baseTag.getAttributeById(HTMLElement.ATTR_HREF);
if ((baseURL!=null) && (docInfo!=null)) {
docInfo.setBaseURL(baseURL);
}
}
HTMLElement titleTag=head.getFirstChildByTagId(HTMLElement.TAG_TITLE);
if ((titleTag!=null) && (titleTag.getNumChildren()>0)) {
HTMLElement titleText=(HTMLElement)titleTag.getChildAt(0);
if (titleText!=null) {
title=titleText.getText();
}
}
HTMLElement basefontTag=head.getFirstChildByTagId(HTMLElement.TAG_BASEFONT);
if (basefontTag!=null) {
textColor=HTMLElement.getColor(basefontTag.getAttributeById(HTMLElement.ATTR_COLOR), textColor);
String family=basefontTag.getAttributeById(HTMLElement.ATTR_FACE);
int size=getInt(basefontTag.getAttributeById(HTMLElement.ATTR_SIZE));
if ((family!=null) || (size!=0)) {
HTMLFont f=getClosestHTMLFont(family, size, 0, 0);
if (f!=null) {
font=f;
}
}
}
if ((SUPPORT_CSS) && (loadCSS)) { // Scan for LINK tags under the HEAD tag
for(int i=0;i<head.getNumChildren();i++) {
HTMLElement child=(HTMLElement)head.getChildAt(i);
if (child.getTagId()==HTMLElement.TAG_LINK) {
handleLinkTag(child);
}
}
}
}
if (htmlCallback!=null) {
Display.getInstance().callSerially(new Runnable() {
public void run() {
htmlCallback.titleUpdated(HTMLComponent.this, title);
}
});
}
if (body!=null) {
bgColor=HTMLElement.getColor(body.getAttributeById(HTMLElement.ATTR_BGCOLOR),-1);
textColor=HTMLElement.getColor(body.getAttributeById(HTMLElement.ATTR_TEXT),textColor);
linkColor=HTMLElement.getColor(body.getAttributeById(HTMLElement.ATTR_LINK),DEFAULT_LINK_COLOR);
if (bgColor!=-1) {
mainContainer.getUnselectedStyle().setBgColor(bgColor);
mainContainer.getUnselectedStyle().setBgTransparency(255);
mainContainer.getSelectedStyle().setBgColor(bgColor);
mainContainer.getSelectedStyle().setBgTransparency(255);
} else if ((pageStyle==null) && (pageUIID==null)) {
mainContainer.getUnselectedStyle().setBgColor(DEFAULT_BGCOLOR);
mainContainer.getUnselectedStyle().setBgTransparency(255);
mainContainer.getSelectedStyle().setBgColor(DEFAULT_BGCOLOR);
mainContainer.getSelectedStyle().setBgTransparency(255);
}
processTag(body,Component.LEFT);
newLineIfNotEmpty(Component.LEFT);
//newLine(Component.LEFT); //flush buffer
mainContainer.applyRTL((dir!=null) && (dir.equalsIgnoreCase("rtl")));
if ((SUPPORT_CSS) && (loadCSS)) {
body.setAssociatedComponents(mainContainer);
if (threadQueue.getCSSCount()==-1) { // If there are no pending external CSS, we can already process the CSS
applyAllCSS(); // Note that this doesn't have to be on EDT as the main container is still not displayed
}
}
} else {
System.out.println("no BODY tag was found in page.");
}
if (!cancelled) {
checkRedirect(head);
}
}
/**
* Applies the CSS according to the following order (As the spec determines):
* - External CSS (CSS files linked with the LINK tag)
* - Embedded CSS (STYLE tag)
* - Inline CSS (STYLE attribute)
*/
void applyAllCSS() {
HTMLElement html=null;
if (document.getTagId()==HTMLElement.TAG_HTML) {
html=document;
}
HTMLElement body=null;
if (html!=null) {
body=html.getFirstChildByTagId(HTMLElement.TAG_BODY);
}
//clickTimer("B4CSS");
if (body!=null) {
CSSEngine.getInstance().applyCSS(body, this, externalCSS, embeddedCSS);
}
}
/**
* Checks if there's a refresh or redirect directive in the META tag and if so executes accordfingly.
*
* @param head The HEAD element of the document
*/
private void checkRedirect(HTMLElement head) {
if (head!=null) {
HTMLElement meta=head.getFirstChildByTagId(HTMLElement.TAG_META);
if (meta!=null) {
String httpequiv=meta.getAttributeById(HTMLElement.ATTR_HTTPEQUIV);
if ((httpequiv!=null) && (httpequiv.equalsIgnoreCase("refresh"))) {
String content=meta.getAttributeById(HTMLElement.ATTR_CONTENT);
if (content!=null) {
int seperator=content.indexOf(';');
String redirectURL=null;
if (seperator!=-1) {
String tempUrl=content.substring(seperator+1);
redirectURL="";
for(int i=0;i<tempUrl.length();i++) {
char ch=tempUrl.charAt(i);
if (!CSSParser.isWhiteSpace(ch)) {
redirectURL+=ch;
}
}
if (redirectURL.startsWith("url=")) { // i.e. 10;url=http://....
redirectURL=redirectURL.substring(4);
}
content=content.substring(0, seperator);
}
int redirectTime=-1;
try {
redirectTime=Integer.parseInt(content);
redirectThread=new RedirectThread(this, redirectTime, redirectURL);
new Thread(redirectThread).start();
} catch (NumberFormatException nfe) {
//Wasn't a number - ignore tag
}
}
}
}
}
}
/**
* Cancels redirects if exists. This is useful when the page has a meta tag with redirection/refresh in X seconds, and in that time the user clicked a link
*/
void cancelRedirectsAndImages() {
if (redirectThread!=null) {
redirectThread.cancel();
redirectThread=null;
}
threadQueue.discardQueue();
embeddedCSS=null;
externalCSS=null;
if (getComponentForm()!=null) {
marqueeMotion=null;
getComponentForm().deregisterAnimated(this);
}
}
/**
* Adds the container representing the current line to the current container and creates a new one
*/
private void newLine(int align) {
if (curLine.getComponentCount()==0) { // If no components are present, create a vertical spacing in the size of the font height
curLine.setPreferredH(font.getHeight());
} else if (maxSuperscript!=0) {
// The following handles superscript. Bottom margin is added in addString to superscript-ed texts
// but it doesn't create the effect of superscript, still the components are still drawn at the top.
// Here we basically transfer the padding to the top, so that superscripted text will have less
// top margin than non-superscripted text, which will render it as it should.
// NOTE: handling this is the line level is not an ideal implementation, but other approaches will make it too complicated
for(int i=0;i<curLine.getComponentCount();i++) {
Component cmp=curLine.getComponentAt(i);
Style style=cmp.getStyle();
style.setMargin(Component.TOP, style.getMargin(Component.TOP)+maxSuperscript-style.getMargin(Component.BOTTOM));
style.setMargin(Component.BOTTOM, 0);
if (cmp instanceof HTMLLink) {
style=cmp.getSelectedStyle();
style.setMargin(Component.TOP, style.getMargin(Component.TOP)+maxSuperscript-style.getMargin(Component.BOTTOM));
style.setMargin(Component.BOTTOM, 0);
style=((HTMLLink)cmp).getPressedStyle();
style.setMargin(Component.TOP, style.getMargin(Component.TOP)+maxSuperscript-style.getMargin(Component.BOTTOM));
style.setMargin(Component.BOTTOM, 0);
}
}
maxSuperscript=0;
}
lastWasEmpty=(curLine.getComponentCount()==0);
curContainer.addComponent(curLine);
curLine=new Container();
curLine.getStyle().setBgTransparency(0);
if (!FIXED_WIDTH) {
FlowLayout fl=new FlowLayout(align);
fl.setValign(Component.BOTTOM);
fl.setValignByRow(true);
curLine.setLayout(fl);
} else {
FlowLayout fl=(FlowLayout)curLine.getLayout();
fl.setValign(Component.BOTTOM);
}
curLine.setScrollableX(false);
curLine.getStyle().setMargin(Component.LEFT,leftIndent);
x=leftIndent;
}
/**
* Same as newLine, but only if the current line container is not empty
*/
private void newLineIfNotEmpty(int align) {
if (curLine.getComponentCount()>0) {
newLine(align);
}
}
/**
* Same as newLine, but only if the last line container was not empty
*/
private void newLineIfLastWasNotEmpty(int align) {
if (!lastWasEmpty) {
newLine(align);
}
}
/**
* Shows a text that has been marked with the html PRE tag which means the text will be displayed as is
* without truncation of white spaces and new lines when reaching the end of the screen.
*
* @param text The text to display
* @param align The current horizontal alignment
* @return a vector containing components each representing a sentence fragment
*/
Vector showPreTagText(String text,int align) {
Vector comps=new Vector();
if ((text==null) || (text.equals(""))) {
return comps; //no text to show
}
String line="";
for(int c=0;c<text.length();c++) {
char ch=text.charAt(c);
if ((ch==10) || (ch==13)) {
if (!line.equals("")) {
comps.addElement(addString(line, align));
newLine(align);
line="";
}
} else {
line+=ch;
}
}
if (!line.equals("")) {
comps.addElement(addString(line, align));
newLine(align);
}
return comps;
}
Vector getWords(String text,int align,boolean returnComps) {
Vector words=new Vector();
String word="";
String leadSpace="";
for(int c=0;c<text.length();c++) {
char ch=text.charAt(c);
if ((CJK_SUPPORT) &&
(((ch>=0x3400) && (ch<=0x9fff)) || //4E00-9FFF: CJK Unified Ideographs (Common), 3400-4DFF: CJK Unified Ideographs Extension A (Rare)
((ch>=0xf900) && (ch<=0xfaff)) //|| //CJK Compatibility Ideographs (Duplicates, unifiable variants, corporate characters)
// Since char can get a max value of 0xffff, the following are not applicable
//((ch>=0x20000) && (ch<=0x2a6df)) || //CJK Unified Ideographs Extension B (Rare, historic)
//((ch>=0x2f800) && (ch<=0x2fa1f)) //CJK Compatibility Ideographs Supplement (Unifiable variants)
)) { // CJK (Chinese, Japanese, Korean)
word+=ch;
if (returnComps) {
words.addElement(addString(word, align));
} else {
words.addElement(word);
}
word="";
} else {
if ((ch==' ') || (ch==10) || (ch==13) || (ch=='\t') || (ch=='\n')) {
if (word.length()!=0) {
if (returnComps) {
words.addElement(addString(leadSpace+word+' ', align));
leadSpace="";
} else {
words.addElement(word);
}
word="";
} else if ((words.isEmpty()) && (text.length()>1)) { // The first word can have a leading space (only one, all whitespaces are aggregated to one space) - Unless this is just a space with no text
leadSpace=" ";
}
} else if ((!returnComps) && (font.stringWidth(word+ch)>width-leftIndent)) { //break words that are longer than the component's width
words.addElement(word);
word=""+ch;
} else {
word+=ch;
}
}
}
if ((word.length()!=0) || (leadSpace.length()!=0)) {
if (returnComps) {
words.addElement(addString(leadSpace+word, align));
} else {
if (word.length()!=0) {
words.addElement(word);
}
}
}
return words;
}
/*
* This method is used in non FIXED_WIDTH mode
*/
private Vector showText(String text,int align) {
return getWords(text, align, true);
}
/**
* Shows the given text. This method breaks lines as necessary and adds the text either as regular labels or links.
*
* @param text The text to display
* @param align The current horizontal alignment
*/
private Vector showTextFixedWidth(String text,int align) {
Vector comps = new Vector();
if ((text==null) || (text.equals(""))) {
return comps; //no text to show
}
int spaceW=width-x;
Vector words=getWords(text,align,false);
if (words.size()>0) {
int w=0;
String wordStr="";
if ((CSSParser.isWhiteSpace(text.charAt(0))) && (curLine.getComponentCount()!=0)) { //leading space is trimmed if it is in the first component of the line
wordStr=" "; //leading space
}
while (w<words.size()) {
String nextWord=(String)words.elementAt(w);
String space="";
if ((!wordStr.equals("")) && (!wordStr.equals(" "))) {
space=" ";
}
if (font.stringWidth(wordStr+space+nextWord)>spaceW-2) {
comps.addElement(addString(wordStr,align));
newLineIfNotEmpty(align);
spaceW=width-x;
wordStr=nextWord;
} else {
wordStr+=space+nextWord;
}
w++;
}
if (CSSParser.isWhiteSpace(text.charAt(text.length()-1))) {
wordStr+=" "; //trailing space
}
comps.addElement(addString(wordStr,align));
}
return comps;
}
/**
* Adds the given text to the container as a label or a link.
* The string given here does not need line breaking as this was calculated before in the calling method.
*
* @param str The text to display
* @param align The current horizontal alignment
*/
private Label addString(String str,int align) {
Label lbl=null;
int color=textColor;
if ((curLine.getComponentCount()==0) && (str.startsWith(" "))) { // First word in paragraph ignores all spaces
str=str.substring(1);
if (str.length()==0) {
return null;
}
}
if (link!=null) {
lbl=new HTMLLink(str,link,this,mainLink,linkVisited);
color=linkColor;
if (linkVisited) {
color=COLOR_VISITED_LINKS;
}
lbl.getSelectedStyle().setFont(font.getFont());
((HTMLLink)lbl).getPressedStyle().setFont(font.getFont());
if (mainLink==null) {
mainLink=(HTMLLink)lbl;
}
if (accesskey!='\0') {
addAccessKey(accesskey, lbl, false);//accessKeys.put(new Integer(accesskey), lbl);
accesskey='\0'; // To prevent the access key from adding again to all words of the link
}
lbl.getSelectedStyle().setMargin(0,0,0,0);
lbl.getSelectedStyle().setPadding(0,0,0,0);
((HTMLLink)lbl).getPressedStyle().setMargin(0,0,0,0);
((HTMLLink)lbl).getPressedStyle().setPadding(0,0,0,0);
lbl.getSelectedStyle().setTextDecoration(textDecoration);
((HTMLLink)lbl).getPressedStyle().setTextDecoration(textDecoration);
} else {
if (labelForID!=null) {
lbl=new ForLabel(str, this, labelForID);
if (accesskey!='\0') {
addAccessKey(accesskey, lbl, false);//accessKeys.put(new Integer(accesskey), lbl);
accesskey='\0'; // To prevent the access key from adding again to all words of the link
}
labelForID=null;
} else {
lbl=new Label(str);
}
}
lbl.getStyle().setMargin(0,0,0,0);
lbl.getStyle().setPadding(0,0,0,0);
if (superscript>0) {
int margin=font.getHeight()*superscript/2;
lbl.getStyle().setMargin(Component.BOTTOM,margin);
if (link!=null) {
lbl.getSelectedStyle().setMargin(Component.BOTTOM,margin);
((HTMLLink)lbl).getPressedStyle().setMargin(Component.BOTTOM,margin);
}
if (margin>maxSuperscript) {
maxSuperscript=margin; // The height superscript margin is saved for a later adjustment at newLine
}
} else if (superscript<0) {
int margin=-font.getHeight()*superscript/2;
lbl.getStyle().setMargin(Component.TOP,margin);
if (link!=null) {
lbl.getSelectedStyle().setMargin(Component.TOP,margin);
((HTMLLink)lbl).getPressedStyle().setMargin(Component.TOP,margin);
}
}
lbl.getUnselectedStyle().setFgColor(color);
lbl.getSelectedStyle().setFgColor(color);
//lbl.setVerticalAlignment(Component.BOTTOM); //TODO - This still doesn't align as label alignment in LWUIT refers to the text alignment in relation to its icon (if exists)
lbl.getUnselectedStyle().setFont(font.getFont());
lbl.getUnselectedStyle().setBgTransparency(0);
lbl.setGap(0);
lbl.setTickerEnabled(false);
lbl.setEndsWith3Points(false);
lbl.getUnselectedStyle().setTextDecoration(textDecoration);
if (align!=JUSTIFY) { // Regular LWUIT labels do not support justify. We acheive justification in fixed width mode below
lbl.setAlignment(align);
}
curLine.addComponent(lbl);
if (anchor!=null) {
anchors.put(anchor,lbl);
}
if (FIXED_WIDTH) {
if (align!=Component.LEFT) {
if (align==JUSTIFY) { // Text justification algorithm
Vector words=getWords(str,align,false);
if (words.size()>1) {
int spaceW=font.getFont().stringWidth(" ");
int spacesToAdd=(width-lbl.getPreferredW())/spaceW;
int spacesPerWord=spacesToAdd/(words.size()-1);
int addtlSpaces=spacesToAdd%(words.size()-1);
String newStr=(String)words.elementAt(0);
for(int i=1;i<words.size();i++) {
for(int j=0;j<spacesPerWord;j++) {
newStr+=' ';
}
if (i<=addtlSpaces) {
newStr+=' ';
}
newStr+=' '+(String)words.elementAt(i);
}
lbl.setText(newStr);
}
} else {
lbl.setPreferredW(width);
}
x=width;
newLine(align);
} else {
x+=lbl.getPreferredW();
}
}
return lbl;
}
/**
* Adds the given access key to make it focus on the given component
*
* @param accessKey The accesskey key code
* @param cmp The component that should be focused when the access key is pressed
* @param override If true, cancel any previous accesskey associated with this component (Relevant for CSS -wap-accesskey)
*/
void addAccessKey(int accessKey,Component cmp,boolean override) {
if ((override) && (accessKeys.contains(cmp))) {
Hashtable newAccessKeys=new Hashtable();
for (Enumeration e=accessKeys.keys();e.hasMoreElements();) {
Object key=e.nextElement();
Component c=(Component)accessKeys.get(key);
if (c!=cmp) {
newAccessKeys.put(key, c);
}
}
accessKeys=newAccessKeys;
}
accessKeys.put(new Integer(accessKey),cmp);
Form form=getComponentForm();
if (form!=null) {
form.addKeyListener(accessKey,this);
}
}
/**
* Overrides initComponent to add the key listeners to the access keys when the component is first added to the form/displayed
* This is useful when the component is added only after the page was read
*/
protected void initComponent() {
super.initComponent();
for (Enumeration e=accessKeys.keys();e.hasMoreElements();) {
int keyCode=((Integer)e.nextElement()).intValue();
getComponentForm().addKeyListener(keyCode,this);
}
}
/**
* If the component is taken off for any reason, makes sure access keys are not active
*/
protected void deinitialize() {
super.deinitialize();
for (Enumeration e=accessKeys.keys();e.hasMoreElements();) {
int keyCode=((Integer)e.nextElement()).intValue();
getComponentForm().removeKeyListener(keyCode,this);
}
// TODO - clean DOM's UI references on deinit? Then what happens on init???
}
/**
* Handles the IMG tag. This includes calculating its size (if available), applying any links/accesskeys and adding it to the download queue
*
* @param imgElement the IMG element
* @param align th current alignment
* @param cmd The submit command of a form, used only for INPUT type="image"
*/
private void handleImage(HTMLElement imgElement,int align,Command cmd) {
String imageUrl = imgElement.getAttributeById(HTMLElement.ATTR_SRC);
Label imgLabel=null;
if (imageUrl!=null) {
String alignStr=imgElement.getAttributeById(HTMLElement.ATTR_ALIGN);
// Image width and height
int iWidth=calcSize(getWidth(), imgElement.getAttributeById(HTMLElement.ATTR_WIDTH),0,false);
int iHeight=calcSize(getHeight(), imgElement.getAttributeById(HTMLElement.ATTR_HEIGHT),0,false);
// Whitespace on the image sides (i.e. Margins)
int hspace=getInt(imgElement.getAttributeById(HTMLElement.ATTR_HSPACE));
int vspace=getInt(imgElement.getAttributeById(HTMLElement.ATTR_VSPACE));
int totalWidth=iWidth+hspace*2;
if ((FIXED_WIDTH) && (x+totalWidth>=width)) {
newLine(align);
}
// Alternative image text, shown until image is loaded.
String altText=imgElement.getAttributeById(HTMLElement.ATTR_ALT);
String imageMap=imgElement.getAttributeById(HTMLElement.ATTR_USEMAP);
if (link!=null) { // This image is inside an A tag with HREF attribute
imgLabel=new HTMLLink(altText,link,this,mainLink,false);
if (mainLink==null) {
mainLink=(HTMLLink)imgLabel;
}
if (accesskey!='\0') {
addAccessKey(accesskey, imgLabel, false);//accessKeys.put(new Integer(accesskey), imgLabel);
}
if (!PROCESS_HTML_MP1_ONLY) {
((HTMLLink)imgLabel).isMap=(imgElement.getAttributeById(HTMLElement.ATTR_ISMAP)!=null);
}
} else if (cmd!=null) { //Special case of an image submit button
imgLabel=new Button(cmd);
if ((altText!=null) && (!altText.equals(""))) {
imgLabel.setText(altText);
}
if (firstFocusable==null) {
firstFocusable=imgLabel;
}
} else if (imageMap!=null) { // Image Map
imgLabel=new HTMLImageMap(this);
if (imageMapComponents==null) {
imageMapComponents=new Hashtable();
}
if (imageMap.startsWith("#")) { // Image map are denoted by # and then the map name (But we also tolerate if map is specified without #)
imageMap=imageMap.substring(1);
}
imageMapComponents.put(imageMap, imgLabel);
if ((imageMapData!=null) && (imageMapData.containsKey(imageMap))) {
ImageMapData data=(ImageMapData)imageMapData.get(imageMap);
((HTMLImageMap)imgLabel).mapData=data;
}
} else {
imgLabel=new Label(altText);
}
if ((iWidth!=0) || (iHeight!=0)) { // reserve space while loading image if either width or height are specified, otherwise we don't know how much to reserve
iWidth+=imgLabel.getStyle().getPadding(Component.LEFT)+imgLabel.getStyle().getPadding(Component.RIGHT);
iHeight+=imgLabel.getStyle().getPadding(Component.TOP)+imgLabel.getStyle().getPadding(Component.BOTTOM);
imgLabel.setPreferredSize(new Dimension(iWidth,iHeight));
} else { // If no space is reserved, make a minimal text, otherwise LWUIT won't calculate the size right after the image loads
if ((imgLabel.getText()==null) || (imgLabel.getText().equals(""))) {
imgLabel.setText(" ");
}
}
// It is important that the padding of the image component itself will be all 0
// This is because when the image is loaded, its preferred size is checked to see if its width/height were preset by the width/height attribute
imgLabel.getSelectedStyle().setPadding(0,0,0,0);
imgLabel.getUnselectedStyle().setPadding(0,0,0,0);
imgLabel.getSelectedStyle().setFont(font.getFont());
imgLabel.getUnselectedStyle().setFont(font.getFont());
int borderSize=getInt(imgElement.getAttributeById(HTMLElement.ATTR_BORDER));
if (borderSize!=0) {
imgLabel.putClientProperty(CLIENT_PROPERTY_IMG_BORDER, new Integer(borderSize));
} else {
borderSize=1;
}
imgLabel.getUnselectedStyle().setBorder(Border.createLineBorder(borderSize));
imgLabel.getSelectedStyle().setBorder(Border.createLineBorder(borderSize));
imgLabel.getUnselectedStyle().setBgTransparency(0);
imgLabel.getSelectedStyle().setBgTransparency(0);
Container imgCont=new Container(new BorderLayout());
imgCont.addComponent(BorderLayout.CENTER,imgLabel);
imgCont.getSelectedStyle().setMargin(vspace, vspace, hspace, hspace);
imgCont.getUnselectedStyle().setMargin(vspace, vspace, hspace, hspace);
curLine.addComponent(imgCont);
x+=totalWidth;
//Alignment
imgLabel.setAlignment(getHorizAlign(alignStr,align,false));
imgLabel.setVerticalAlignment(getVertAlign(alignStr,Component.CENTER));
if (showImages) {
if (docInfo!=null) {
imageUrl=docInfo.convertURL(imageUrl);
threadQueue.add(imgLabel, imageUrl);
} else {
if (DocumentInfo.isAbsoluteURL(imageUrl)) {
threadQueue.add(imgLabel, imageUrl);
} else {
if (htmlCallback!=null) {
htmlCallback.parsingError(HTMLCallback.ERROR_NO_BASE_URL, imgElement.getTagName(),imgElement.getAttributeName(new Integer(HTMLElement.ATTR_SRC)),imageUrl,"Ignoring Image file referred in an IMG tag ("+imageUrl+"), since page was set by setBody/setHTML/setDOM so there's no way to access relative URLs");
}
}
}
}
if (loadCSS) {
imgElement.setAssociatedComponents(imgCont);
}
}
}
/**
* Handles an area definition for an image map
*
* @param areaTag The AREA tag
*/
private void handleImageMapArea(HTMLElement areaTag) {
if (curImageMap!=null) {
String shape=areaTag.getAttributeById(HTMLElement.ATTR_SHAPE);
boolean supportedShape=false;
if (shape!=null) {
String hrefStr=areaTag.getAttributeById(HTMLElement.ATTR_HREF);
if (shape.equalsIgnoreCase("default")) {
supportedShape=true;
curImageMap.setDefaultLink(hrefStr);
} else if ((shape.equalsIgnoreCase("rect")) || (shape.equalsIgnoreCase("circle"))) {
supportedShape=true;
String coordsStr=areaTag.getAttributeById(HTMLElement.ATTR_COORDS);
if ((coordsStr!=null) && (hrefStr!=null)) {
String curValStr="";
int coords[] = new int[4];
int curCoord=0;
boolean error=true;
try {
for(int c=0;c<coordsStr.length();c++) {
char ch=coordsStr.charAt(c);
if (ch!=',') {
curValStr+=ch;
} else {
coords[curCoord]=Integer.parseInt(curValStr);
curCoord++;
curValStr="";
}
}
if (curValStr.length()>0) {
coords[curCoord]=Integer.parseInt(curValStr);
curCoord++;
}
if (shape.equalsIgnoreCase("rect")) {
if (curCoord==4) {
curImageMap.addRectArea(new Rectangle(coords[0],coords[1],coords[2]-coords[0],coords[3]-coords[1]), hrefStr);
error=false;
}
} else if (curCoord==3) { //circle
// coords[2] is the radius, and 0,1 are the center x,y
curImageMap.addRectArea(new Rectangle(coords[0]-coords[2],coords[1]-coords[2],coords[2]*2+1,coords[2]*2+1), hrefStr);
// Note: The 'circle' SHAPE in AREA tag is implemented as a rectangle to avoid complication of circle pixel collision
error=false;
}
} catch (Exception e) { // Can be number format exception or index out of bounds
// do nothing - error will stay true
}
if (error) {
notifyImageMapError("AREA tag 'coords' property value is invalid (should be exactly 3 comma seperated numbers for circle, 4 for rectangle): "+coordsStr,HTMLCallback.ERROR_ATTIBUTE_VALUE_INVALID,HTMLElement.ATTR_COORDS,coordsStr);
}
}
}
}
if (!supportedShape) {
notifyImageMapError("Unsupported or missing AREA tag 'shape' property: "+shape,HTMLCallback.ERROR_ATTIBUTE_VALUE_INVALID,HTMLElement.ATTR_SHAPE,shape);
}
} else {
notifyImageMapError("AREA tag is defined without a parent MAP tag - ignoring",HTMLCallback.ERROR_INVALID_TAG_HIERARCHY,-1,null);
}
}
private void notifyImageMapError(String msg,int errorCode,int attrId,String value) {
if (htmlCallback!=null) {
String attr=null;
if (attrId!=-1) {
attr=HTMLElement.ATTRIBUTE_NAMES[attrId];
}
htmlCallback.parsingError(errorCode, HTMLElement.TAG_NAMES[HTMLElement.TAG_AREA], attr, value, msg);
}
}
/**
* Handles the INPUT tag
*
* @param element The input element
* @param align The current aligment
*/
private void handleInput(HTMLElement element,int align) {
String type=element.getAttributeById(HTMLElement.ATTR_TYPE);
if (type==null) {
return;
}
int typeID=INPUT_TYPES.indexOf(type.toLowerCase());
if (typeID==-1) {
if (htmlCallback!=null) {
if (!htmlCallback.parsingError(HTMLCallback.ERROR_ATTIBUTE_VALUE_INVALID, element.getTagName(), element.getAttributeName(new Integer(HTMLElement.ATTR_TYPE)), type, "Unsupported input type '"+type+"'. Supported types: text, password, checkbox, radio, submit, reset, hidden, image")) {
cancel();
}
}
return;
}
String name=element.getAttributeById(HTMLElement.ATTR_NAME);
String id=element.getAttributeById(HTMLElement.ATTR_ID);
String value=element.getAttributeById(HTMLElement.ATTR_VALUE);
if (value==null) {
value="";
}
Component cmp=null;
switch(typeID) {
case INPUT_CHECKBOX:
CheckBox cb=new CheckBox();
if (element.getAttributeById(HTMLElement.ATTR_CHECKED)!=null) {
cb.setSelected(true);
}
cmp=cb;
if (curForm!=null) {
curForm.addCheckBox(name, cb,value);
}
break;
case INPUT_HIDDEN:
if (curForm!=null) {
curForm.addInput(name, value,null);
}
break;
case INPUT_TEXT:
case INPUT_PASSWORD:
TextField tf = new TextField(value);
tf.setLeftAndRightEditingTrigger(false);
if (typeID==INPUT_PASSWORD) {
tf.setConstraint(TextField.PASSWORD);
}
if (SUPPORT_INPUT_FORMAT) {
HTMLInputFormat inputFormat=HTMLInputFormat.getInputFormat(element.getAttributeById(HTMLElement.ATTR_FORMAT));
if (inputFormat!=null) {
tf=(TextField)inputFormat.applyConstraints(tf);
if (curForm!=null) {
curForm.setInputFormat(tf, inputFormat);
}
}
String emptyOk=element.getAttributeById(HTMLElement.ATTR_EMPTYOK);
if ((emptyOk!=null) && (curForm!=null)) {
if (emptyOk.equalsIgnoreCase("true")) {
curForm.setEmptyOK(tf, true);
} else if (emptyOk.equalsIgnoreCase("false")) {
curForm.setEmptyOK(tf, false);
}
}
}
int size=getInt(element.getAttributeById(HTMLElement.ATTR_SIZE));
int maxlen=getInt(element.getAttributeById(HTMLElement.ATTR_MAXLENGTH));
if (size==0) {
size=DEFAULT_TEXTFIELD_SIZE;
}
if (maxlen!=0) {
tf.setMaxSize(maxlen);
if (size>maxlen) {
size=maxlen;
}
}
tf.setPreferredW(tf.getStyle().getFont().stringWidth("W")*size);
tf.getSelectedStyle().setFont(font.getFont());
tf.getUnselectedStyle().setFont(font.getFont());
if ((!PROCESS_HTML_MP1_ONLY) && (element.getAttributeById(HTMLElement.ATTR_READONLY)!=null)) {
tf.setEditable(false);
}
cmp=tf;
if (curForm!=null) {
curForm.addInput(name, cmp,value);
textfieldsToForms.put(tf, curForm);
}
break;
case INPUT_RADIO:
RadioButton rb=new RadioButton(" ");
if (element.getAttributeById(HTMLElement.ATTR_CHECKED)!=null) {
rb.setSelected(true);
}
cmp=rb;
if (curForm!=null) {
curForm.addRadioButton(name, rb,value);
}
break;
case INPUT_RESET:
Command resetCmd=null;
if (curForm!=null) {
resetCmd=curForm.createResetCommand(value);
}
if (resetCmd==null) {
resetCmd=new Command(HTMLForm.getDefaultResetText()); //dummy command - no form so it won't do anything
}
Button resetButton=new Button(resetCmd);
cmp=resetButton;
break;
case INPUT_SUBMIT:
Command submitCmd=null;
if (curForm!=null) {
submitCmd = curForm.createSubmitCommand(name, value);
}
if (submitCmd==null) {
submitCmd=new Command(value.equals("")?HTMLForm.getDefaultSubmitText():value); //dummy command - no form so it won't do anything
}
Button submitButton=new Button(submitCmd);
cmp=submitButton;
break;
case INPUT_IMAGE: // Image submit is not officially supported in XHTML-MP 1.0 but was added anyway, but pixel data submission is not supported (i.e. name.x=xx&name.y=yy)
submitCmd=null;
if (curForm!=null) {
submitCmd = curForm.createSubmitCommand(name, value);
}
handleImage(element, align,submitCmd);
break;
}
if (cmp!=null) {
if ((!PROCESS_HTML_MP1_ONLY) && (element.getAttributeById(HTMLElement.ATTR_DISABLED)!=null)) {
cmp.setEnabled(false);
}
String aKey=element.getAttributeById(HTMLElement.ATTR_ACCESSKEY);
if ((aKey!=null) && (aKey.length()==1)) {
addAccessKey(aKey.charAt(0), cmp, false);//accessKeys.put(new Integer(aKey.charAt(0)), cmp);
}
if (eventsListener!=null) {
eventsListener.registerComponent(cmp, element);
}
element.setAssociatedComponents(cmp); //Even if CSS is off, we need to associate it for HTMLElement.getCurentValue
if ((curForm!=null) && (curForm.action==null)) { //Form that submits to a forbidden link
cmp.setEnabled(false);
} else if (firstFocusable==null) {
firstFocusable=cmp;
}
if (id!=null) {
inputFields.put(id,cmp);
}
}
addCmp(cmp,align);
}
/**
* Sets input format validation for a TextArea or TextField
* This is called from the CSSEngine, and since it is done after the TextArea has been added it is a bit more complicated
*
* @param inputField The TextArea to place the input format validation on
* @param inputFormat The string representing the input format
* @return The same TextArea or a new instance representing the element
*/
TextArea setInputFormat(final TextArea inputField,String inputFormat) {
TextArea returnInputField=inputField;
if (SUPPORT_INPUT_FORMAT) {
HTMLForm form=(HTMLForm)textfieldsToForms.get(inputField);
if (form!=null) {
HTMLInputFormat format=HTMLInputFormat.getInputFormat(inputFormat);
if (format!=null) {
form.setInputFormat(inputField, format);
final TextArea newInputField=format.applyConstraints(inputField);
returnInputField=newInputField;
// Replace operation must be done on the EDT if the form is visible
if (Display.getInstance().getCurrent()!=inputField.getComponentForm()) { // ((inputField.getComponentForm()==null) ||
inputField.getParent().replace(inputField, newInputField, null); // Applying the constraints may return a new instance that has to be replaced in the form
} else {
Display.getInstance().callSerially(new Runnable() {
public void run() {
inputField.getParent().replace(inputField, newInputField, null); // Applying the constraints may return a new instance that has to be replaced in the form
}
});
}
if (firstFocusable==inputField) {
firstFocusable=newInputField;
}
}
}
}
return returnInputField;
}
/**
* Sets an input-required restriction on the given input field
*
* @param inputField The TextArea to place the input required restriction on
* @param inputRequired true if input is required (i.e. emptyok=false), false if input is not required (i.e. emptyok=true)
*/
void setInputRequired(TextArea inputField,boolean inputRequired) {
if (SUPPORT_INPUT_FORMAT) {
HTMLForm form=(HTMLForm)textfieldsToForms.get(inputField);
if (form!=null) {
if (inputRequired) { // Note that input-required is the reverse from emptyok...
form.setEmptyOK(inputField, false);
} else {
form.setEmptyOK(inputField, true);
}
}
}
}
/**
* Adds the given component to the curLine container after performing size checks
*
* @param cmp The component to add
*/
private void addCmp(Component cmp,int align) {
if (cmp!=null) {
if ((FIXED_WIDTH) && (x+cmp.getPreferredW()>width)) {
newLine(align);
}
curLine.addComponent(cmp);
x+=cmp.getPreferredW();
}
}
/**
* Updates the current margin with the given delta
*
* @param delta The pixels to increment (positive value) or decrement (negative value) from the current margin
*/
private void updateMargin(int delta) {
leftIndent+=delta;
x+=delta;
curLine.getStyle().setMargin(Component.LEFT, leftIndent);
}
/**
* Handles a single table cell (a TD tag)
*
* @param tdTag The TD tag element
* @param align The current alignment
*/
private void handleTableCell(HTMLElement tdTag,int align) {
newLineIfNotEmpty(align);
tableCells.addElement(curContainer);
Container cell=new Container();
cell.getStyle().setBgTransparency(0);
cell.setLayout(new BoxLayout(BoxLayout.Y_AXIS));
//int border=0;
HTMLElement trTag=(HTMLElement)tdTag.getParent();
while ((trTag!=null) && (trTag.getTagId()!=HTMLElement.TAG_TR)) { // Though in strict XHTML TR can only contain TD/TH - in some HTMLs TR doesn't have to be the direct parent of the tdTag, i.e.: <tr><b><td>...</td>... </b></tr>
trTag=(HTMLElement)trTag.getParent();
}
// Commented since the table border should not affect cell border
/*if (trTag!=null) { // Null checks to prevent exceptions for a TD tag without table etc.
HTMLElement tableTag=(HTMLElement)trTag.getParent();
while ((tableTag!=null) && (tableTag.getTagId()!=HTMLElement.TAG_TABLE)) { // Though in strict XHTML TABLE can only contain TR - in some HTMLs it might be different
tableTag=(HTMLElement)tableTag.getParent();
}
if (tableTag!=null) {
border=getInt(tableTag.getAttributeById(HTMLElement.ATTR_BORDER));
}
}
cell.getUnselectedStyle().setPadding(border, border, border, border);
cell.getSelectedStyle().setPadding(border, border, border, border);*/
//Constraint constraint = new Constraint();
CellConstraint constraint = new CellConstraint();
int halign=align;
int valign=Component.CENTER;
if (trTag!=null) {
HTMLElement tGroupTag=(HTMLElement)trTag.getParent();
int tagId=tGroupTag.getTagId();
if ((tagId==HTMLElement.TAG_TBODY) || (tagId==HTMLElement.TAG_THEAD) || (tagId==HTMLElement.TAG_TFOOT)) {
halign=getHorizAlign(tGroupTag.getAttributeById(HTMLElement.ATTR_ALIGN),halign,false); // Get the default TR alignment
valign=getVertAlign(tGroupTag.getAttributeById(HTMLElement.ATTR_VALIGN),valign); // Get the default TR valignment
}
halign=getHorizAlign(trTag.getAttributeById(HTMLElement.ATTR_ALIGN),halign,false); // Get the default TR alignment
valign=getVertAlign(trTag.getAttributeById(HTMLElement.ATTR_VALIGN),valign); // Get the default TR valignment
}
halign=getHorizAlign(tdTag.getAttributeById(HTMLElement.ATTR_ALIGN),halign,false);
valign=getVertAlign(tdTag.getAttributeById(HTMLElement.ATTR_VALIGN),valign);
int colspan=getInt(tdTag.getAttributeById(HTMLElement.ATTR_COLSPAN));
int rowspan=getInt(tdTag.getAttributeById(HTMLElement.ATTR_ROWSPAN));
String cWidth=tdTag.getAttributeById(HTMLElement.ATTR_WIDTH);
int pW=getPercentage(cWidth);
if ((pW>0) && (pW<100)) {
//constraint.setWidthPercentage(pW); //TODO - Setting a width constraint currently makes the field width 0 - needs to be fixed in TableLayout
} else {
pW=getInt(cWidth);
if (pW!=0) {
cell.setPreferredW(pW);
}
}
String cHeight=tdTag.getAttributeById(HTMLElement.ATTR_HEIGHT);
int pH=getPercentage(cHeight);
if ((pH>0) && (pH<100)) {
//constraint.setHeightPercentage(pH); //TODO - Setting a height constraint currently makes the field height 0 - needs to be fixed in TableLayout
} else {
pH=getInt(cHeight);
if (pH!=0) {
cell.setPreferredH(pH);
}
}
constraint.setHorizontalAlign(halign);
constraint.setVerticalAlign(valign);
if (colspan>1) {
constraint.setHorizontalSpan(colspan);
}
if (rowspan>1) {
constraint.setVerticalSpan(rowspan);
}
curContainer=cell;
if (curTable!=null) {
curTable.addCell(cell,(tdTag.getTagId()==HTMLElement.TAG_TH),constraint);
}
if (loadCSS) {
tdTag.setAssociatedComponents(cell);
if (trTag!=null) {
trTag.addAssociatedComponent(cell);
}
}
}
/**
* Processes the given tag. This is the main processing method that calls all others and uses itself in a recursive manner.
*
* @param element The element to process
* @param align The current alignment
*/
private void processTag(HTMLElement element,int align) {
if ((cancelled) && (!cancelledCaught)) {
return;
}
int curAlign=align;
HTMLFont oldFont=font;
int oldFontColor=textColor;
for(int i=0;i<element.getNumChildren();i++) {
if ((cancelled) && (!cancelledCaught)) {
break;
}
HTMLElement child=(HTMLElement)element.getChildAt(i);
// Process Tag Open
switch (child.getTagId()) {
case HTMLElement.TAG_TEXT:
//String text=child.getAttributeById(HTMLElement.ATTR_TITLE);
String text=child.getText();
if ((curComboBox!=null) && (optionTag)) { // Text is inside an OPTION tag, i.e. belongs to a ComboBox
OptionItem oi = new OptionItem(text, optionValue);
curComboBox.addItem(oi);
if (optionSelected) {
curComboBox.setSelectedItem(oi);
if (curForm!=null) {
curForm.setDefaultValue(curComboBox, oi);
}
}
} else if (curTextArea!=null) { // Text is inside of a TEXTAREA tag
curTextArea.setText(text);
if (curForm!=null) {
curForm.setDefaultValue(curTextArea,text);
}
} else if (element.getTagId()==HTMLElement.TAG_LEGEND) { // Note: this is element, i.e. the child's parent (child is TAG_TEXT, and if parent is TAG_LEGEND then we process this block)
if (fieldsets.size()>0) {
Container fset=(Container)fieldsets.lastElement();
fset.getStyle().setBorder(Border.createLineBorder(1, text));
fset.getStyle().setPadding(Component.TOP, fset.getStyle().getFont().getHeight()+1);
}
} else if ((curTable!=null) && (element.getTagId()==HTMLElement.TAG_CAPTION)) { // Note: this is element, i.e. the child's parent (child is TAG_TEXT, and if parent is TAG_LEGEND then we process this block)
curTable.captionTextTag=child;
} else {
//long startTextTime=System.currentTimeMillis(); //debug code for performance measurement
Vector comps=null;
if (preTagCount!=0) {
comps=showPreTagText(text, curAlign);
} else {
if (FIXED_WIDTH) {
comps=showTextFixedWidth(text, curAlign);
} else {
comps=showText(text, curAlign);
}
}
if (loadCSS) {
child.setAssociatedComponents(comps);
}
//textTime+=(System.currentTimeMillis()-startTextTime); //debug code for performance measurement
}
break;
case HTMLElement.TAG_A:
link=child.getAttributeById(HTMLElement.ATTR_HREF);
if ((link!=null) && (docInfo==null) && (!DocumentInfo.isAbsoluteURL(link))) {
if (htmlCallback!=null) {
htmlCallback.parsingError(HTMLCallback.ERROR_NO_BASE_URL, child.getTagName(),child.getAttributeName(new Integer(HTMLElement.ATTR_HREF)),link,"Disabling relative link ("+link+"), since page was set by setBody/setHTML/setDOM so there's no way to access relative URLs");
}
link=null;
}
if ((link!=null) && (htmlCallback!=null)) {
int linkProps=htmlCallback.getLinkProperties(this, convertURL(link));
if ((linkProps & HTMLCallback.LINK_FORBIDDEN)!=0) {
link=null;
} else if ((linkProps & HTMLCallback.LINK_VISTED)!=0) {
linkVisited=true;
}
}
anchor=child.getAttributeById(HTMLElement.ATTR_NAME);
if (link!=null) {
String aKey=child.getAttributeById(HTMLElement.ATTR_ACCESSKEY);
if ((aKey!=null) && (aKey.length()==1)) {
accesskey=aKey.charAt(0);
}
}
break;
case HTMLElement.TAG_H1:
case HTMLElement.TAG_H2:
case HTMLElement.TAG_H3:
case HTMLElement.TAG_H4:
case HTMLElement.TAG_H5:
case HTMLElement.TAG_H6:
font=(HTMLFont)fonts.get(child.getTagName());
if (font==null) {
font=oldFont;
}
// No break here intentionally
case HTMLElement.TAG_P:
curAlign=getHorizAlign(child.getAttributeById(HTMLElement.ATTR_ALIGN),align,true);
adjustAlignment(align, curAlign);
newLineIfNotEmpty(curAlign);
newLineIfLastWasNotEmpty(curAlign);
pushContainer(child);
break;
case HTMLElement.TAG_DIV:
case HTMLElement.TAG_CENTER: // CENTER is practically DIV align=CENTER
curAlign=child.getTagId()==HTMLElement.TAG_DIV?getHorizAlign(child.getAttributeById(HTMLElement.ATTR_ALIGN),align,true):Component.CENTER;
adjustAlignment(align, curAlign);
newLineIfNotEmpty(curAlign);
pushContainer(child);
break;
case HTMLElement.TAG_FIELDSET:
newLineIfNotEmpty(curAlign);
Container newCont=new Container();
newCont.setUIID("HTMLFieldset");
if (fieldsets.size()==0) { // First fieldset shouldn't have margin
newCont.getStyle().setMargin(Component.LEFT,0);
}
newCont.setLayout(new BoxLayout(BoxLayout.Y_AXIS));
curContainer.addComponent(newCont);
fieldsets.addElement(newCont);
curContainer=newCont;
if (loadCSS) {
child.setAssociatedComponents(newCont);
}
break;
case HTMLElement.TAG_BR:
if (loadCSS) {
child.setAssociatedComponents(curLine);
}
newLine(curAlign);
break;
case HTMLElement.TAG_DL:
newLineIfNotEmpty(curAlign);
newLine(curAlign);
pushContainer(child);
break;
case HTMLElement.TAG_DT:
newLineIfNotEmpty(curAlign);
pushContainer(child);
break;
case HTMLElement.TAG_UL:
case HTMLElement.TAG_DIR:
case HTMLElement.TAG_MENU:
newLineIfNotEmpty(curAlign);
ulLevel++;
listIndent+=INDENT_UL;
if ((ulLevel==1) && (olIndex==Integer.MIN_VALUE)) { //newline only if it's the first list
newLine(curAlign);
} else {
listIndent+=INDENT_UL; //extra indentation for level 2 and beyond
}
pushContainer(child);
break;
case HTMLElement.TAG_OL:
newLineIfNotEmpty(curAlign);
if (olIndex!=Integer.MIN_VALUE) {
String indexStr=ORDERED_LIST_TYPE_IDENTIFIERS[listType]+""+olIndex;
olUpperLevelIndex.addElement(indexStr); //new Integer(olIndex));
}
olIndex=getInt(child.getAttributeById(HTMLElement.ATTR_START),1); //olIndex=1;
listType=getOrderedListType(child);
if ((olUpperLevelIndex.size()==0) && (ulLevel==0)) { //newline only if it's the first list
newLine(curAlign);
} else {
listIndent+=INDENT_OL; // add indent only for second level - first one already gets it from the numbers alignment to a 4-digit number
}
pushContainer(child);
break;
case HTMLElement.TAG_LI:
Container listItemCont = new Container(new BorderLayout());
listItemCont.getStyle().setMargin(Component.LEFT,leftIndent+listIndent);
curContainer.addComponent(listItemCont);
containers.addElement(curContainer);
HTMLListItem bullet=null;
if (((HTMLElement)child.getParent()).getTagId()==HTMLElement.TAG_OL) {
olIndex=getInt(child.getAttributeById(HTMLElement.ATTR_VALUE),olIndex);
int itemListType=getOrderedListType(child,listType);
HTMLListIndex listIndex=new HTMLListIndex(olIndex, itemListType);
listIndex.getUnselectedStyle().setFgColor(textColor);
listIndex.getSelectedStyle().setFgColor(textColor);
listIndex.getUnselectedStyle().setFont(font.getFont());
bullet=listIndex;
// following aligns short and long numbers (assuming a 4-digit number as the maximum, as other browsers do)
bullet.getUnselectedStyle().setAlignment(Component.RIGHT);
bullet.setPreferredW(font.getFont().stringWidth("8888. "));
} else {
bullet=new HTMLBullet(getUnorderedListType(child,ulLevel), font.getFont().getHeight(),textColor,this);
}
Container bulletCont=new Container(new BorderLayout());
bulletCont.addComponent(BorderLayout.NORTH,bullet);
listItemCont.addComponent(BorderLayout.WEST, bulletCont);
Container listItemText=new Container(new BoxLayout(BoxLayout.Y_AXIS));
listItemCont.addComponent(BorderLayout.CENTER, listItemText);
curContainer=listItemText;
if (loadCSS) {
child.setAssociatedComponents(listItemText);
}
break;
case HTMLElement.TAG_BLOCKQUOTE:
newLineIfNotEmpty(curAlign);
updateMargin(INDENT_BLOCKQUOTE);
newLine(curAlign);
pushContainer(child);
break;
case HTMLElement.TAG_DD:
newLineIfNotEmpty(curAlign);
updateMargin(INDENT_DD);
pushContainer(child);
break;
case HTMLElement.TAG_HR:
newLineIfNotEmpty(curAlign);
Label hr=new Label();
hr.setUIID("HTMLHR");
//hr.getStyle().setBorder(Border.createBevelRaised());
int hrWidth=calcSize(width, child.getAttributeById(HTMLElement.ATTR_WIDTH), width,false);
int hrHeight=getInt(child.getAttributeById(HTMLElement.ATTR_SIZE), HR_THICKNESS);
hr.setPreferredW(hrWidth);
hr.setPreferredH(hrHeight);
curLine.addComponent(hr);
newLine(curAlign);
if (loadCSS) {
child.setAssociatedComponents(hr);
}
break;
case HTMLElement.TAG_STYLE:
break;
case HTMLElement.TAG_IMG:
handleImage(child,curAlign,null);
break;
case HTMLElement.TAG_PRE:
preTagCount++;
pushContainer(child);
case HTMLElement.TAG_EM:
case HTMLElement.TAG_STRONG:
case HTMLElement.TAG_DFN:
case HTMLElement.TAG_CODE:
case HTMLElement.TAG_SAMP:
case HTMLElement.TAG_KBD:
case HTMLElement.TAG_VAR:
case HTMLElement.TAG_CITE:
case HTMLElement.TAG_TT:
font=(HTMLFont)fonts.get(child.getTagName());
if (font==null) {
font=oldFont;
}
break;
case HTMLElement.TAG_B:
case HTMLElement.TAG_I:
case HTMLElement.TAG_BIG:
case HTMLElement.TAG_SMALL:
font=getCounterpartFont(child.getTagId(), font);
break;
case HTMLElement.TAG_FORM:
curForm=new HTMLForm(this,child.getAttributeById(HTMLElement.ATTR_ACTION),child.getAttributeById(HTMLElement.ATTR_METHOD),child.getAttributeById(HTMLElement.ATTR_ENCTYPE));
pushContainer(child);
break;
case HTMLElement.TAG_INPUT:
handleInput(child,curAlign);
break;
case HTMLElement.TAG_SELECT:
String multi = child.getAttributeById(HTMLElement.ATTR_MULTIPLE);
// If a select tag has size specified, it will be shown as an open list, and not as LWUIT combo, even if there's no multiple seection allowed
if ((multi!=null) || (child.getAttributeById(HTMLElement.ATTR_SIZE)!=null)) {
curComboBox=new MultiComboBox(multi!=null);
Container comboCont=new Container(new BorderLayout());
curComboBox.setItemGap(0);
comboCont.setUIID("ComboBox");
curComboBox.setUIID("List");
comboCont.addComponent(BorderLayout.CENTER,curComboBox);
} else {
curComboBox=new HTMLComboBox();
}
String name = child.getAttributeById(HTMLElement.ATTR_NAME);
if (curForm!=null) {
curForm.addInput(name,curComboBox,null);
}
child.setAssociatedComponents(curComboBox); //Even if CSS is off, we need to associate it for HTMLElement.getCurentValue
if (eventsListener!=null) {
eventsListener.registerComponent(curComboBox, child);
}
if ((!PROCESS_HTML_MP1_ONLY) && (child.getAttributeById(HTMLElement.ATTR_DISABLED)!=null)) {
curComboBox.setEnabled(false);
}
break;
case HTMLElement.TAG_OPTGROUP:
if (curComboBox!=null) {
String label=child.getAttributeById(HTMLElement.ATTR_LABEL);
if (label!=null) {
curComboBox.addItem(label);
}
}
break;
case HTMLElement.TAG_OPTION:
optionTag=true;
optionValue = child.getAttributeById(HTMLElement.ATTR_VALUE);
if ((curComboBox!=null) && (child.getAttributeById(HTMLElement.ATTR_SELECTED)!=null)) {
optionSelected=true;
}
break;
case HTMLElement.TAG_TEXTAREA:
curTextArea = new TextArea(getInt(child.getAttributeById(HTMLElement.ATTR_ROWS),DEFAULT_TEXTAREA_ROWS),
getInt(child.getAttributeById(HTMLElement.ATTR_COLS),DEFAULT_TEXTAREA_COLS));
if (!PROCESS_HTML_MP1_ONLY) {
if (child.getAttributeById(HTMLElement.ATTR_DISABLED)!=null) {
curTextArea.setEnabled(false);
}
if (child.getAttributeById(HTMLElement.ATTR_READONLY)!=null) {
curTextArea.setEditable(false);
}
}
addCmp(curTextArea,curAlign);
if (eventsListener!=null) {
eventsListener.registerComponent(curTextArea, child);
}
child.setAssociatedComponents(curTextArea); //Even if CSS is off, we need to associate it for HTMLElement.getCurentValue
String aKey=element.getAttributeById(HTMLElement.ATTR_ACCESSKEY);
if ((aKey!=null) && (aKey.length()==1)) {
addAccessKey(aKey.charAt(0), curTextArea, false);//accessKeys.put(new Integer(aKey.charAt(0)), curTextArea);
}
break;
case HTMLElement.TAG_Q:
addQuote(child,curAlign,true);
quoteTagCount++;
break;
case HTMLElement.TAG_TABLE:
newLineIfNotEmpty(curAlign);
if (curTable!=null) {
tables.addElement(curTable);
HTMLTableModel newTable = new HTMLTableModel();
curTable=newTable;
} else {
curTable=new HTMLTableModel();
}
width=width/2; // In fixed width mode we arbitrarily divide the size by a factor knowing that probably there are several cells (If we don't do it, labels inside the cell will be built up to the full width size, leaving no space for others)
break;
case HTMLElement.TAG_TR:
break;
case HTMLElement.TAG_TH:
case HTMLElement.TAG_TD:
if (curTable!=null) {
handleTableCell(child,curAlign);
}
break;
case HTMLElement.TAG_LABEL:
labelForID=child.getAttributeById(HTMLElement.ATTR_FOR);
aKey=child.getAttributeById(HTMLElement.ATTR_ACCESSKEY);
if ((aKey!=null) && (aKey.length()==1)) {
accesskey=aKey.charAt(0);
}
break;
// HTML 4 tags
case HTMLElement.TAG_FONT:
textColor=HTMLElement.getColor(child.getAttributeById(HTMLElement.ATTR_COLOR), textColor); // TODO - This will not work for nested font tags, need to either define color as a local parameter or create a vector stack
String family=child.getAttributeById(HTMLElement.ATTR_FACE);
int size=getInt(child.getAttributeById(HTMLElement.ATTR_SIZE));
if ((family!=null) || (size!=0)) {
HTMLFont f=getClosestHTMLFont(family, size, 0, 0);
if (f!=null) {
font=f;
}
}
break;
case HTMLElement.TAG_U:
case HTMLElement.TAG_INS: // INS (Inserted text) is rendered exactly like U (underline) in most browsers
if (underlineCount==0) {
textDecoration|=Style.TEXT_DECORATION_UNDERLINE;
}
underlineCount++;
break;
case HTMLElement.TAG_S:
case HTMLElement.TAG_STRIKE:
case HTMLElement.TAG_DEL:// DEL (Deleted text) is rendered exactly like S (strikethru) in most browsers
if (strikethruCount==0) {
textDecoration|=Style.TEXT_DECORATION_STRIKETHRU;
}
strikethruCount++;
break;
case HTMLElement.TAG_MAP:
String mapName=child.getAttributeById(HTMLElement.ATTR_NAME);
curImageMap=new ImageMapData(mapName);
break;
case HTMLElement.TAG_AREA:
handleImageMapArea(child);
break;
case HTMLElement.TAG_SUP:
superscript++;
break;
case HTMLElement.TAG_SUB:
superscript--;
break;
case HTMLElement.TAG_TBODY:
if (curTable!=null) {
curTable.startSegment(HTMLTableModel.SEGMENT_TBODY);
}
break;
case HTMLElement.TAG_THEAD:
if (curTable!=null) {
curTable.startSegment(HTMLTableModel.SEGMENT_THEAD);
}
break;
case HTMLElement.TAG_TFOOT:
if (curTable!=null) {
curTable.startSegment(HTMLTableModel.SEGMENT_TFOOT);
}
break;
}
if (child.getNumChildren()>0) {
processTag(child,curAlign);
}
// Process close tag
switch(child.getTagId()) {
case HTMLElement.TAG_H1:
case HTMLElement.TAG_H2:
case HTMLElement.TAG_H3:
case HTMLElement.TAG_H4:
case HTMLElement.TAG_H5:
case HTMLElement.TAG_H6:
font=oldFont;
case HTMLElement.TAG_P:
curAlign=align; //Restore previous alignment
newLineIfNotEmpty(curAlign);
popContainer();
newLine(curAlign);
break;
case HTMLElement.TAG_DIV:
case HTMLElement.TAG_CENTER:
curAlign=align; //Restore previous alignment
newLineIfNotEmpty(curAlign);
popContainer();
break;
case HTMLElement.TAG_FIELDSET:
newLineIfNotEmpty(curAlign);
Container fieldsetContainer=(Container)fieldsets.lastElement();
curContainer=fieldsetContainer.getParent();
fieldsets.removeElement(fieldsetContainer);
break;
case HTMLElement.TAG_BLOCKQUOTE:
newLineIfNotEmpty(curAlign);
newLine(curAlign);
updateMargin(-INDENT_BLOCKQUOTE);
popContainer();
break;
case HTMLElement.TAG_DT:
popContainer();
break;
case HTMLElement.TAG_DD:
newLineIfNotEmpty(curAlign);
updateMargin(-INDENT_DD);
popContainer();
break;
case HTMLElement.TAG_DL:
newLine(curAlign);
popContainer();
break;
case HTMLElement.TAG_A:
link=null;
linkVisited=false;
mainLink=null;
anchor=null;
accesskey='\0';
break;
case HTMLElement.TAG_UL:
case HTMLElement.TAG_DIR:
case HTMLElement.TAG_MENU:
ulLevel--;
if ((ulLevel==0) && (olIndex==Integer.MIN_VALUE)) {
newLine(curAlign);
} else {
listIndent-=INDENT_UL; // level 2 and beyond got extra indentation, so we remove it here
}
listIndent-=INDENT_UL;
popContainer();
break;
case HTMLElement.TAG_OL:
if (olUpperLevelIndex.size()!=0) {
String indexStr=(String)olUpperLevelIndex.lastElement();
olUpperLevelIndex.removeElementAt(olUpperLevelIndex.size()-1);
listType=getOrderedListType(indexStr.charAt(0),HTMLListIndex.LIST_NUMERIC);
olIndex=getInt(indexStr.substring(1));
listIndent-=INDENT_OL; // First level of ordered list doesn't get indentation, so we substract only if it's nested
} else {
olIndex=Integer.MIN_VALUE;
}
if ((olIndex==Integer.MIN_VALUE) && (ulLevel==0)) {
newLine(curAlign); //new line only if it is the last nested list
}
popContainer();
break;
case HTMLElement.TAG_LI:
if (olIndex!=Integer.MIN_VALUE) {
olIndex++;
}
newLineIfNotEmpty(curAlign);
// We can't use popContainer, since with LI the container is pushed even when CSS is ignored, to provide the spacing between the list item bullet/number and the text (in a nested way if needed)
Container prevContainer=(Container)containers.lastElement();
curContainer=prevContainer;
containers.removeElement(curContainer);
//popContainer();
//curContainer=listItemParentContainer;
break;
case HTMLElement.TAG_PRE:
preTagCount--;
popContainer();
case HTMLElement.TAG_FONT:
textColor=oldFontColor;
case HTMLElement.TAG_EM:
case HTMLElement.TAG_STRONG:
case HTMLElement.TAG_DFN:
case HTMLElement.TAG_CODE:
case HTMLElement.TAG_SAMP:
case HTMLElement.TAG_KBD:
case HTMLElement.TAG_VAR:
case HTMLElement.TAG_CITE:
case HTMLElement.TAG_B:
case HTMLElement.TAG_I:
case HTMLElement.TAG_BIG:
case HTMLElement.TAG_SMALL:
case HTMLElement.TAG_TT:
font=oldFont;
break;
case HTMLElement.TAG_FORM:
if ((curForm!=null) && (!curForm.hasSubmitButton) && (curForm.getNumFields()>0)) { // This is a fix for forms with no submit buttons which can be resulted due to the fact XHTML-MP doesn't support the BUTTON tag and also input type button with javascript
Button submitButton=new Button(curForm.createSubmitCommand(null,null));
addCmp(submitButton,curAlign);
}
curForm=null;
popContainer();
break;
case HTMLElement.TAG_TEXTAREA:
String name = child.getAttributeById(HTMLElement.ATTR_NAME);
if (curForm!=null) { // This was moved to the end tag to enable auto complete support (i.e. if there's an autocomplete it overrides the default value)
curForm.addInput(name,curTextArea,null);
}
curTextArea=null;
break;
case HTMLElement.TAG_SELECT:
if (curComboBox instanceof MultiComboBox) {
Container comboCont=curComboBox.getParent();
int minSize=Math.min(MIN_MULTI_COMBOBOX_ITEMS, curComboBox.size());
int maxSize=Math.min(curComboBox.size(),MAX_MULTI_COMBOBOX_ITEMS);
int size=Math.min(maxSize,Math.max(getInt(child.getAttributeById(HTMLElement.ATTR_SIZE)),minSize));
Component renderCmp=curComboBox.getRenderer().getListCellRendererComponent(curComboBox, "X", 0, false);
comboCont.setPreferredH((renderCmp.getPreferredH()+renderCmp.getStyle().getMargin(Component.TOP)+renderCmp.getStyle().getMargin(Component.BOTTOM)+curComboBox.getItemGap())*size
+curComboBox.getStyle().getPadding(Component.TOP)+curComboBox.getStyle().getPadding(Component.BOTTOM));
addCmp(comboCont, curAlign);
} else {
addCmp(curComboBox, curAlign);
}
curComboBox=null;
break;
case HTMLElement.TAG_OPTION:
optionTag=false;
optionSelected=false;
optionValue=null;
break;
case HTMLElement.TAG_Q:
quoteTagCount--;
addQuote(child,curAlign,false);
break;
case HTMLElement.TAG_TABLE:
newLineIfNotEmpty(curAlign);
curTable.commitRowIfNotEmpty(); // For a case that TR was not closed properly
if (curTable.getRowCount()!=0) { //Don't add an empty table (Creates an exception in TableLayout and useless)
/*if (TABLES_LOCK_SIZE) {
for(int r=0;r<curTable.getRowCount();r++) {
for(int c=0;c<curTable.getColumnCount();c++) {
Component cmp=(Component)curTable.getValueAt(r, c);
if (cmp!=null) { // Can be null for cells that are "spanned over"
cmp.setPreferredSize(cmp.getPreferredSize());
}
}
}
}*/
HTMLTable table=new HTMLTable(curTable);
table.getStyle().setBgTransparency(0);
if (loadCSS) {
child.setAssociatedComponents(table);
}
int borderSize=getInt(child.getAttributeById(HTMLElement.ATTR_BORDER));
int[] borderPad = new int[4];
if (borderSize>0) {
int frame = PROCESS_HTML_MP1_ONLY?-1:HTMLUtils.getStringVal(child.getAttributeById(HTMLElement.ATTR_FRAME),HTMLElement.ALLOWED_TABLE_FRAME_STRINGS);
Border border=Border.createLineBorder(borderSize);
if (frame==-1) {
for(int s=0;s<borderPad.length;s++) {
borderPad[s]=borderSize;
}
} else {
Border[] borders = new Border[4];
for(int j=0;j<HTMLElement.ALLOWED_TABLE_FRAME_VALS[frame].length;j++) {
int side=HTMLElement.ALLOWED_TABLE_FRAME_VALS[frame][j];
borders[side]=border;
borderPad[side]=borderSize;
}
border=Border.createCompoundBorder(borders[Component.TOP], borders[Component.BOTTOM], borders[Component.LEFT], borders[Component.RIGHT]);
}
table.getUnselectedStyle().setBorder(border);
table.getSelectedStyle().setBorder(border);
table.getUnselectedStyle().setPadding(borderPad[Component.TOP], borderPad[Component.BOTTOM], borderPad[Component.LEFT], borderPad[Component.RIGHT]);
table.getSelectedStyle().setPadding(borderPad[Component.TOP], borderPad[Component.BOTTOM], borderPad[Component.LEFT], borderPad[Component.RIGHT]);
} else {
table.getUnselectedStyle().setBorder(null);
table.getSelectedStyle().setBorder(null);
table.setDrawBorder(false);
}
if (!PROCESS_HTML_MP1_ONLY) {
int rules=HTMLUtils.getStringVal(child.getAttributeById(HTMLElement.ATTR_RULES),HTMLElement.ALLOWED_TABLE_RULES_STRINGS,Table.INNER_BORDERS_ALL);
table.setInnerBorderMode(rules);
int spacing=getInt(child.getAttributeById(HTMLElement.ATTR_CELLSPACING),-1);
if (spacing!=-1) {
table.setBorderSpacing(spacing, spacing);
}
int padding=getInt(child.getAttributeById(HTMLElement.ATTR_CELLPADDING),-1);
if (padding!=-1) {
for(int r=0;r<curTable.getRowCount();r++) {
for(int c=0;c<curTable.getColumnCount();c++) {
Component cmp=(Component)curTable.getValueAt(r, c);
if (cmp!=null) { // Can be null for cells that are "spanned over"
cmp.getUnselectedStyle().setPadding(padding,padding,padding,padding);
cmp.getSelectedStyle().setPadding(padding,padding,padding,padding);
}
}
}
}
}
if (curTable.captionTextTag!=null) {
Container captionedTable = new Container(new BoxLayout(BoxLayout.Y_AXIS));
TextArea caption=new TextArea(curTable.captionTextTag.getText());
curTable.captionTextTag.setAssociatedComponents(caption);
caption.setUIID("HTMLTableCaption");
caption.setEditable(false);
caption.setFocusable(false);
caption.getStyle().setBorder(null);
caption.getStyle().setAlignment(Component.CENTER);
captionedTable.addComponent(caption);
captionedTable.addComponent(table);
addCmp(captionedTable,curAlign);
} else {
addCmp(table,curAlign);
}
newLineIfNotEmpty(curAlign);
}
if (tables.size()==0) {
curTable=null;
} else {
curTable=(HTMLTableModel)tables.lastElement();
tables.removeElement(curTable);
}
width=width*2; // In fixed width mode we arbitrarily divide the size by a factor knowing that probably there are several cells - here we restore the size back
if (width>displayWidth) {
width=displayWidth;
}
break;
case HTMLElement.TAG_TR:
if (curTable!=null) {
curTable.commitRow();
}
break;
case HTMLElement.TAG_TH:
case HTMLElement.TAG_TD:
if (curTable!=null) {
newLineIfNotEmpty(curAlign);
curContainer=(Container)tableCells.lastElement();
tableCells.removeElement(curContainer);
}
break;
case HTMLElement.TAG_LABEL:
labelForID=null;
accesskey='\0';
break;
// HTML 4 tags
case HTMLElement.TAG_U:
case HTMLElement.TAG_INS:
underlineCount--;
if (underlineCount==0) {
textDecoration-=Style.TEXT_DECORATION_UNDERLINE;
}
break;
case HTMLElement.TAG_S:
case HTMLElement.TAG_STRIKE:
case HTMLElement.TAG_DEL:
strikethruCount--;
if (strikethruCount==0) {
textDecoration-=Style.TEXT_DECORATION_STRIKETHRU;
}
break;
case HTMLElement.TAG_MAP:
if (curImageMap!=null) {
if (imageMapData==null) {
imageMapData=new Hashtable();
}
imageMapData.put(curImageMap.name, curImageMap);
if ((imageMapComponents!=null) && (imageMapComponents.containsKey(curImageMap.name))) {
HTMLImageMap imageMap=(HTMLImageMap)imageMapComponents.get(curImageMap.name);
imageMap.mapData=curImageMap;
}
curImageMap=null;
}
break;
case HTMLElement.TAG_SUP:
superscript--;
break;
case HTMLElement.TAG_SUB:
superscript++;
break;
case HTMLElement.TAG_TBODY:
case HTMLElement.TAG_THEAD:
case HTMLElement.TAG_TFOOT:
if (curTable!=null) {
curTable.endSegment();
}
break;
}
}
}
/**
* The following replaces the layout of the curLine container with the correct alignment, in non fixed width alignment is done by flowlayout's orientation.
* In case the line is not empty, a new line will be opened by newLineIfNotEmpty below
*
* @param align The general alignment of the element
* @param curAlign The alignment of the specific component we want to
*/
private void adjustAlignment(int align,int curAlign) {
if ((!FIXED_WIDTH) && (align!=curAlign)) {
if (curLine.getComponentCount()==0) {
curLine.setLayout(new FlowLayout(curAlign));
}
}
}
/**
* Figures out what is the appropriate list type (i.e. which bullet types) for the unordered list in question
*
* @param element The element containing the UL tag
* @param defaultType The default list type
* @return The UL list type
*/
private int getUnorderedListType(HTMLElement element,int defaultType) {
String listTypeStr=element.getAttributeById(HTMLElement.ATTR_TYPE);
int type=convertULString(listTypeStr);
if (type==-1) {
type=defaultType;
}
return type;
}
/**
* Figures out the appropriate list type for the given Ordered List element according to its attributes
* This calls the getOrderedListType(Element,int) with LIST_NUMERIC as the default type
*
* @param element The OL element
* @return The OL list type
*/
private int getOrderedListType(HTMLElement element) {
return getOrderedListType(element, HTMLListIndex.LIST_NUMERIC);
}
/**
* Figures out the appropriate list type for the given Ordered List element according to its attributes
*
* @param element The OL element
* @param defaultListType The default list type
* @return The OL list type
*/
private int getOrderedListType(HTMLElement element,int defaultListType) {
String listTypeStr=element.getAttributeById(HTMLElement.ATTR_TYPE);
if ((listTypeStr!=null) &&(listTypeStr.length()>0)) {
char c=listTypeStr.charAt(0);
return getOrderedListType(c, defaultListType);
}
return defaultListType;
}
/**
* Figures out the appropriate list type for the given list type identifier
*
* @param c The list identifier (one of ORDERED_LIST_TYPE_IDENTIFIERS)
* @param defaultListType The default list type
* @return The OL list type
*/
private int getOrderedListType(char c,int defaultListType) {
for(int j=0;j<ORDERED_LIST_TYPE_IDENTIFIERS.length;j++) {
if (c==ORDERED_LIST_TYPE_IDENTIFIERS[j]) {
return j;
}
}
return defaultListType;
}
private void pushContainer(HTMLElement element) {
if (loadCSS) {
Container cont=new Container(new BoxLayout(BoxLayout.Y_AXIS));
cont.setScrollableX(false);
//cont.getStyle().setBgColor(Element.COLOR_VALS[contCount]);
//contCount=(contCount+1)%Element.COLOR_VALS.length; // debug for CSS
//cont.getStyle().setBgTransparency(128);
cont.getStyle().setBgTransparency(0);
element.setAssociatedComponents(cont);
curContainer.addComponent(cont);
containers.addElement(curContainer);
curContainer=cont;
}
}
private void popContainer() {
if (loadCSS) {
Container prevContainer=(Container)containers.lastElement();
curContainer=prevContainer;
containers.removeElement(curContainer);
}
}
/**
* Adds a quote according to the current quote count
*
* @param quoteElement The quote element (TAG_Q)
* @param curAlign The current horizontal alignment
*/
private void addQuote(HTMLElement quoteElement, int curAlign,boolean isStartTag) {
String quote=null;
int quoteNum=isStartTag?0:1; // 0 is the start tag of primary tag and 1 its closing tag. 2 is the start of secondary tag and 3 the closing tag (Used for CSS_QUOTES)
if (quoteTagCount==0) {
quote="\"";
} else {
quote="'";
quoteNum+=2;
}
if ((FIXED_WIDTH) && (width-x<font.stringWidth(quote))) {
newLine(curAlign);
}
Label quoteLabel=addString(quote, curAlign);
quoteLabel.putClientProperty(CLIENT_PROPERTY_QUOTE, new Integer(quoteNum));
if (loadCSS) {
quoteElement.addAssociatedComponent(quoteLabel);
}
}
/**
* Converts a textual horizontal alignment description to a LWUIT alignment constant
*
* @param alignment The string describing the alignment
* @param defaultAlign The default alignment if the string cannot be converted
* @param allowJustify true to allow justify alignment, false to return center if justify is mentioned
* @return Component.LEFT, RIGHT or CENTER or the defaultAlign in case no match was found.
*/
private int getHorizAlign(String alignment,int defaultAlign,boolean allowJustify) {
if (alignment!=null) {
if (alignment.equals("left")) {
return Component.LEFT;
} else if (alignment.equals("right")) {
return Component.RIGHT;
} else if ((alignment.equals("center")) || (alignment.equals("middle"))) {
return Component.CENTER;
} else if (alignment.equals("justify")) {
return ((allowJustify) && (FIXED_WIDTH))?JUSTIFY:Component.CENTER;
}
}
return defaultAlign; //unknown alignment
}
/**
* Converts a textual vertical alignment description to a LWUIT alignment constant
*
* @param alignment The string describing the alignment
* @param defaultAlign The default alignment if the string cannot be converted
* @return Component.TOP, BOTTOM or CENTER or the defaultAlign in case no match was found.
*/
private int getVertAlign(String alignment,int defaultAlign) {
if (alignment!=null) {
if (alignment.equals("top")) {
return Component.TOP;
} else if (alignment.equals("bottom")) {
return Component.BOTTOM;
} else if ((alignment.equals("center")) || (alignment.equals("middle"))) {
return Component.CENTER;
}
}
return defaultAlign;
}
/**
* A convenience method to convert a string to an int.
* This is mainly intended to save the try-catch for NumericFormatExceptions
*
* @param intStr The string describing the integer
* @param defaultValue The value to return if the string is not numeric
* @return the integer value of the string, or defaultValue if the string is not numeric
*/
static int getInt(String intStr,int defaultValue) {
try {
int num=Integer.parseInt(intStr);
return num;
} catch (NumberFormatException nfe) {
return defaultValue;
}
}
/**
* A convenience method to convert a string to an int.
* This is mainly intended to save the try-catch for NumericFormatExceptions
*
* @param intStr The string describing the integer
* @return the integer value of the string, or 0 if the string is not numeric
*/
static int getInt(String intStr) {
return getInt(intStr,0);
}
/**
* A convenience method to convert a string describing a percentage to an int.
*
* @param percent The string representing the percentage
* @return The percentage integer value (i.e. 80% will return 80) or 0 if the string is not a percentage
*/
private int getPercentage(String percent) {
if ((percent==null) || (!percent.endsWith("%"))) {
return 0;
}
return getInt(percent.substring(0, percent.length()-1));
}
/**
* Calculates width or height of an element according to its original size, requested size and default size
*
* @param origDim The original width/height
* @param requestedDim The string describing the requested width/height either in pixels or in percentage
* @param defaultDim The default width/height to return in case the calculation fails
* @return The new width/height according to the parameters
*/
static int calcSize(int origDim,String requestedDim,int defaultDim,boolean negativeAllowed) {
if (requestedDim==null) {
return defaultDim;
}
boolean percent=false;
if (requestedDim.endsWith("%")) {
percent=true;
requestedDim=requestedDim.substring(0, requestedDim.length()-1);
} else if (requestedDim.endsWith("px")) { // Pixels can be described either simply as '20' or as '20px'
requestedDim=requestedDim.substring(0, requestedDim.length()-2);
}
int dim=0;
try {
dim=Integer.parseInt(requestedDim);
} catch (Exception e) {
//dim=-1;
return origDim;
}
if ((dim<0) && (!negativeAllowed)) { //Dimension was negative
return origDim;
}
if (percent) {
return origDim*dim/100;
} else {
return dim;
}
}
/**
* Returns the input fields of this HTMLComponent, used by the FOR label mecahnism.
*
* @return the input fields of this HTMLComponent
*/
Hashtable getInputFields() {
return inputFields;
}
/**
* Focuses on the given component and if it's a checkbox/radiobutton selects it
* This is used both for ForLabels and for access keys
*
* @param cmp The component to focus and select
*/
void selectComponent(Component cmp) {
getComponentForm().setFocused(cmp);
getComponentForm().scrollComponentToVisible(cmp);
if (cmp instanceof RadioButton) {
((RadioButton)cmp).setSelected(true);
} else if (cmp instanceof CheckBox) {
CheckBox cb=((CheckBox)cmp);
cb.setSelected(!cb.isSelected());
}
}
/**
* Converts the given URL to an absolute URL based on the current page's URL
*
* @param url The url to convert (Can be relative)
* @return The absolute URL representing the given URL in relation to the current one.
*/
String convertURL(String url) {
if (docInfo!=null) {
return docInfo.convertURL(url);
} else {
return url; // No conversion is possible if we don't have a DocumentInfo object (in cases of setBody from a string and not from a document address), absolute URLs should have no problem, and as for relative the RequestHandler will have to handle these cases
}
}
/**
* Jumps to the given anchor
*
* @param anchorName The anchor to jump to
*/
void goToAnchor(String anchorName) {
Label anchorCmp=(Label)anchors.get(anchorName);
if (anchorCmp!=null) {
int cx=anchorCmp.getX();
int cy=anchorCmp.getY();
int h= getHeight();
if (anchorCmp.getAbsoluteY()-getY()+h>getPreferredH()) {
h=getPreferredH()-(anchorCmp.getAbsoluteY()-getY());
}
scrollRectToVisible(cx, cy, getWidth(), h, anchorCmp);
}
}
/**
* {@inheritDoc}
*/
public void layoutContainer() {
if ((FIXED_WIDTH) && (displayWidth!=0) && (Display.getInstance().getDisplayWidth()!=displayWidth)) {
new Thread() {
public void run() {
cleanup();
rebuildPage(); //screen form factor changed - landscape/portrait
}
}.start();
}
super.layoutContainer();
}
/**
* {@inheritDoc}
*/
public void actionPerformed(ActionEvent evt) {
if (getComponentForm().getFocused() instanceof TextField) {
return;
}
int keyCode=evt.getKeyEvent();
Object obj = accessKeys.get(new Integer(keyCode));
if (obj!=null) {
if (obj instanceof HTMLLink) {
HTMLLink htmlLink = (HTMLLink)obj;
htmlLink.actionPerformed(null);
} else if (obj instanceof ForLabel) {
((ForLabel)obj).triggerAction();
} else if (obj instanceof Component) {
selectComponent((Component)obj);
}
}
}
ResourceThreadQueue getThreadQueue() {
return threadQueue;
}
/**
* @inheritDoc
*/
public String[] getPropertyNames() {
return new String[] {"url", "body","pageUIID"};
}
/**
* @inheritDoc
*/
public Class[] getPropertyTypes() {
return new Class[] {String.class, String.class,String.class};
}
/**
* @inheritDoc
*/
public Object getPropertyValue(String name) {
if(name.equals("url")) {
return pageURL;
}
if(name.equals("body")) {
return htmlBody;
}
if (name.equals("pageUIID")) {
return pageUIID;
}
return null;
}
/**
* @inheritDoc
*/
public String setPropertyValue(String name, Object value) {
if(name.equals("url")) {
setPage((String)value);
return null;
}
if(name.equals("body")) {
htmlBody = (String)value;
if(htmlBody != null && htmlBody.length() > 0) {
setHTML(htmlBody, "UTF-8", null, true);
}
return null;
}
if (name.equals("pageUIID")) {
pageUIID=(String)value;
if ((mainContainer!=null) && (pageUIID!=null)) {
mainContainer.setUIID(pageUIID);
}
return null;
}
return super.setPropertyValue(name, value);
}
///////////////////
// Methods relevant to CSS2 only (not WCSS)
///////////////////
/**
* Increments or resets the specified counter (This is CSS related, but since CSSEngine has no class members for storage, we keep control of it here)
*
* @param counterStr The counter-increment/reset property value which is the string counter name followed optionally by the factor by which to increment or the value to reset to
* @param reset true to reset, false to increment
*/
void incCounter(String counterStr,boolean reset) {
counterStr=counterStr.trim();
int value=reset?0:1; // 0 is the default value to reset to, while 1 is the default increment step
Vector v=getWords(counterStr, Component.LEFT, false); // align is LEFT but just as a place holder, it doesn't really have any effect
if (v.size()==0) {
return;
}
counterStr=(String)v.elementAt(0);
if (v.size()>1) {
try {
value=Integer.parseInt((String)v.elementAt(1));
} catch (NumberFormatException nfe) {
// ignore - use default values
}
}
if (counters==null) {
counters=new Hashtable();
}
if (reset) {
counters.put(counterStr, new Integer(value));
} else {
int curValue=0;
Object obj=counters.get(counterStr);
if (obj!=null) {
curValue=((Integer)obj).intValue();
}
counters.put(counterStr, new Integer(value+curValue));
}
}
/**
* Return the value of the sperecified counter
*
* @param counterName The counter name
* @return the value of this counter (or 0 if it does not exist)
*/
int getCounterValue(String counterName) {
if (counters==null) {
return 0;
}
Object obj=counters.get(counterName);
return obj==null?0:((Integer)obj).intValue();
}
/*********
* HTMLComponent inner classes
*********/
/**
* A thread used to refresh or redirect to another page in X seconds
*
* @author Ofir Leitner
*/
class RedirectThread implements Runnable {
int seconds;
String url;
HTMLComponent htmlC;
boolean cancelled;
public RedirectThread(HTMLComponent htmlC,int seconds,String url) {
this.seconds=seconds;
this.url=url;
this.htmlC=htmlC;
}
public void run() {
try {
Thread.sleep(seconds*1000);
} catch (InterruptedException ie) {
System.out.println("Warning: Redirect/Refresh thread sleep interrupted, page may refresh sooner than expected.");
}
if (!cancelled) {
boolean redirect=(url!=null);
url=htmlC.convertURL(url);
if (redirect) {
htmlC.setPageStatus(HTMLCallback.STATUS_REDIRECTED);
}
htmlC.setPage(url);
}
}
public void cancel() {
cancelled=true;
}
}
/**
* A label that when clicked focuses (and toggels when applicable) a certain input field.
* This implements the LABEL html tag
*
* @author Ofir Leitner
*/
class ForLabel extends Label {
String id;
HTMLComponent htmlC;
ForLabel(String labelText,HTMLComponent htmlC,String id) {
super(labelText);
this.id=id;
this.htmlC=htmlC;
}
/**
* {@inheritDoc}
*/
public void pointerReleased(int x, int y) {
triggerAction();
super.pointerReleased(x, y);
}
/**
* Triggers the needed action for this ForLabel
*/
void triggerAction() {
Component cmp = (Component)htmlC.getInputFields().get(id);
if (cmp!=null) {
htmlC.selectComponent(cmp);
}
}
}
/**
* Static variables for HTMLListIndex
*/
static final String[] CSS_OL_TYPES = {"decimal","upper-alpha","lower-alpha","upper-roman","lower-roman","none"};
/**
* Strings representing roman numerals 0-9
*/
private static final String[] ROMAN_NUMERALS_ONES={"","I","II","III","IV","V","VI","VII","VIII","IX"};
/**
* Strings representing roman numeral tens (10,20,30 etc.)
*/
private static final String[] ROMAN_NUMERALS_TENS={"","X","XX","XXX","XL","L","LX","LXX","LXXX","XC"};
class HTMLListIndex extends HTMLListItem {
int index;
int listType;
/**
* Numeric ordered list type (1 ,2, 3)
*/
static final int LIST_NUMERIC = 0;
/**
* Uppercase ordered list type (A, B, C)
*/
private static final int LIST_UPPERCASE = 1;
/**
* Lowercase ordered list type (a, b, c)
*/
private static final int LIST_LOWERCASE = 2;
/**
* Roman numerals uppercase ordered list type (I,II,III,IV,V ......)
*/
private static final int LIST_ROMAN_UPPER = 3;
/**
* Roman numerals lowercase ordered list type (i, ii, iii, iv, v ...)
*/
private static final int LIST_ROMAN_LOWER = 4;
/**
* A list with no numbers at all - can be triggered with CSS
*/
private static final int LIST_NONE = 5;
/**
* Returns a list index text according to the list type
*
* @param index The list index
* @param type The list type
* @return The index converted according to the list style
*/
private String getListIndexString(int index,int type) {
if (index<=0) {
return index+". ";
}
switch(type) {
case LIST_NUMERIC:
return index+". ";
case LIST_UPPERCASE:
return getLiteral(index,'A');
case LIST_LOWERCASE:
return getLiteral(index,'a');
case LIST_ROMAN_UPPER:
return getRomanIndexString(index);
case LIST_ROMAN_LOWER:
return getRomanIndexString(index).toLowerCase();
}
return " "; //In case of "none" - To keep indentation
}
String getLiteral(int index,char baseChar) {
String literal="";
while (index>0) {
literal=(char)((index%26)+baseChar-1)+literal;
index=index/26;
}
return literal+". ";
}
/**
* Converts a number to a roman numeral (Up to 99, should suffice for HTML lists...)
*
* @param index The list index to convert
* @return A roman numeral representing the given index
*/
private String getRomanIndexString(int index) {
index=index%100;
return ROMAN_NUMERALS_TENS[index/10]+ROMAN_NUMERALS_ONES[index%10]+". ";
}
public HTMLListIndex(int index,int listType) {
this.index=index;
this.listType=listType;
setText(getListIndexString(index, listType));
getStyle().setMargin(0,0,0,0);
getStyle().setPadding(0,0,0,0);
getUnselectedStyle().setBgTransparency(0);
}
public void setStyleType(int type) {
if (type!=-1) {
listType=type-4;
if (listType<0) {
listType=5; //LIST_NONE
}
setText(getListIndexString(index, listType));
repaint();
}
}
public void setImage(String imageUrl) {
// do nothing, has no meaning for ordered lists
}
}
/**
* Static variables and methods for HTMLBullet
*/
static final String[] CSS_UL_TYPES = {"none","disc","circle","square"};
static int convertULString(String listTypeStr) {
if (listTypeStr==null) {
return -1;
}
for(int j=0;j<CSS_UL_TYPES.length;j++) {
if (listTypeStr.equalsIgnoreCase(CSS_UL_TYPES[j])) {
return j;
}
}
return -1;
}
/**
* A simple class drawing a bullet in various styles
*
* @author Ofir Leitner
*/
class HTMLBullet extends HTMLListItem {
// Unordered list types
/**
* Indicates no bullet should be displayed
*/
private static final int BULLET_NONE = 0;
/**
* Indicates the disc style (full circle) for an unordered list
*/
private static final int BULLET_DISC = 1;
/**
* Indicates the circle (empty circle) style for an unordered list
*/
private static final int BULLET_CIRCLE = 2;
/**
* Indicates the square (full square) style for an unordered list
*/
private static final int BULLET_SQUARE = 3;
int level;
int fontHeight;
int color;
HTMLComponent htmlC;
public HTMLBullet(int level,int fontHeight,int color,HTMLComponent htmlC) {
this.level=level;
this.fontHeight=fontHeight;
this.color=color;
this.htmlC=htmlC;
getStyle().setBgTransparency(0);
setFocusable(false);
}
public void setStyleType(int type) {
if (type!=-1) {
level=type;
setShouldCalcPreferredSize(true);
repaint();
}
}
public void setImage(String imageUrl) {
if (imageUrl!=null) {
//setText(" "); // Due to a LWUIT bug Labels with an icon only and no text can be cut
htmlC.getThreadQueue().add(this, htmlC.convertURL(imageUrl));
}
}
/**
* {@inheritDoc}
*/
public void paint(Graphics g) {
if (getIcon()!=null) {
super.paint(g);
return;
}
int size=fontHeight/3;
g.setColor(color);
if (level==BULLET_DISC) { // Filled circle
size+=2;
g.fillArc(getX()+(getWidth()-size)/2, getY()+(getHeight()-size)/2, size,size,0,360);
} else if (level==BULLET_CIRCLE) { // Empty circle
g.drawArc(getX()+(getWidth()-size)/2, getY()+(getHeight()-size)/2, size,size,0,360);
} else if (level==BULLET_SQUARE) { // Filled square
g.fillRect(getX()+(getWidth()-size)/2, getY()+(getHeight()-size)/2, size,size);
}
}
/**
* {@inheritDoc}
*/
protected Dimension calcPreferredSize() {
if (getIcon()!=null) {
return super.calcPreferredSize();
}
if (level==BULLET_NONE) {
return new Dimension(0,fontHeight);
} else {
return new Dimension(fontHeight,fontHeight);
}
}
}
/**
* HTMLComboBox overrides ComboBox to allow usage of MultiComboBox as its list.
* This is done for OPTGROUP labels support (Note that multiple features of MultiComboBox will be switched off)
*
* @author Ofir Leitner
*/
class HTMLComboBox extends ComboBox {
/**
* {@inheritDoc}
*/
protected List createPopupList() {
List l = new MultiComboBox(getModel(),false);
l.setSmoothScrolling(isSmoothScrolling());
l.setFixedSelection(getFixedSelection());
l.setItemGap(getItemGap());
l.setUIID("ComboBoxList");
return l;
}
}
}