手机java浏览器源码

/* * Copyright � 2008 Telenor R&I, iLabs. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * For questions regarding the source code, please visit the project's * website at https://ilabsmobiletoolbox.dev.java.net, use the web forum at * https://ilabsmobiletoolbox.dev.java.net/servlets/ForumMessageList?forumID=2884 * or consider joining one of the mailing lists (see project's website * for details). You may also get the latest releases and report issues * at our sourceforge website http://sourceforge.net/projects/ilabsmobiletool. * * For questions regarding this license, please contact iLabs Telenor R&I, * license@ilabs.mobi, Snar�yveien 30, 1331 Fornebu, Norway or visit * http://www.iLabs.no for additional information regarding licensing. */ package mobi.ilabs.gui.html.parser; import java.io.InputStream; import javax.microedition.lcdui.Graphics; import javax.microedition.lcdui.Image; import mobi.ilabs.errlog.IMTErrorCodes; import mobi.ilabs.gui.html.items.HtmlItem; import mobi.ilabs.gui.html.items.ImageItem; import mobi.ilabs.gui.html.items.InputItem; import mobi.ilabs.gui.html.items.LineItem; import mobi.ilabs.gui.html.items.LinkItem; import mobi.ilabs.gui.html.items.SelectItem; import mobi.ilabs.gui.Style; import mobi.ilabs.html.URLParsing; import mobi.ilabs.gui.utils.Color; import mobi.ilabs.gui.utils.GetImage; import mobi.ilabs.errlog.IMTException; import mobi.ilabs.gui.html.Credentials; import mobi.ilabs.gui.html.FontAdjuster; import mobi.ilabs.gui.html.HtmlForm; import mobi.ilabs.gui.html.HtmlDocument; import mobi.ilabs.gui.html.HtmlTags; import mobi.ilabs.gui.html.HtmlViewListener; import mobi.ilabs.gui.html.IItemListener; import mobi.ilabs.gui.html.PasswordManager; import mobi.ilabs.gui.html.css.CssManager; import mobi.ilabs.gui.html.css.CssClass; import mobi.ilabs.gui.html.css.CssTags; import mobi.ilabs.gui.html.css.HtmlTagWithCss; import mobi.ilabs.gui.html.items.IFormItem; import mobi.ilabs.gui.html.plugin.HtmlPluginItem; import mobi.ilabs.gui.html.items.LinkStyle; import mobi.ilabs.gui.html.items.HtmlStringItem; import mobi.ilabs.gui.html.items.TextArea; import mobi.ilabs.gui.html.plugin.PluginFactory; import mobi.ilabs.gui.html.plugin.PluginFactoryProvider; import mobi.ilabs.util.StringUtil; import mobi.ilabs.util.Tokenizer; public class HtmlRenderer implements ITagListener { private HtmlTagWithCss mCurrentTagStyle; //private LinkStyle mLinkStyle; private HtmlViewListener mViewListener; /**The listener who will receive events generated by the HtmlItems*/ private IItemListener mItemListener; /** * The document we are rendering. */ private HtmlDocument mDocument; /** * The css styles defined for the htmlpage we are rendering.. */ private CssManager mCssStyles; /** * The parser we are using for parsing HTML. */ HtmlParser mHtmlParser; /** * The canvas width in pixels. */ private int mCanvasWidth; /** * The canvas height in pixels. */ private int mCanvasHeight; /** * XXX */ //private int mCurrentLine; private int mScreenNr; /** * Link information */ private String mCurrentLink; private String mCurrentLinkName; private String mCurrentLinkId; private String mCurrentLinkOnClick; private String mCurrentId; //used for assigning id to text between tags... /** * if true, center content. */ //private boolean mCenter; /** * The x position (in pixels) where a new html item will be placed. */ //private int mXpos; /** * The y position (in pixels) where a new html item will be placed. */ //private int mYpos; /** * The current style used to render text. */ //private Style mCurrentStyle; /** * XXX Used for some hairy color juggling inside onFontTag. */ private int mPrevColor; private HtmlForm mCurrentForm; private SelectItem mCurrentSelectItem; private HtmlTag mCurrentOptionTag; private TextArea mCurrentTextAreaTag; private HtmlItem mCurrentDivItem; private HtmlItem mCurrentSpanItem; private RenderContext mRc; /** * maximum height of item on current line. */ private int mMaxItemHeight; /** * An object that will help us get fonts for various * headings, and togglable italics and boldface. */ private FontAdjuster mFonts; /** * Creates a new instance of HtmlRenderer. * * * @param view the view to render into. SBFIXME * @param width the width we are allowed to render into * @param height the height we are allowed to render into. */ public HtmlRenderer(final HtmlViewListener htmlViewListener, final IItemListener itemListener, final int width, final int height) { mViewListener = htmlViewListener; mItemListener = itemListener; mCanvasWidth = width; mCanvasHeight = height; mFonts = new FontAdjuster(); } /** * stops the rendering as soon as possible. */ public void abort() { if(mHtmlParser != null) { mHtmlParser.abort(); } } /** * Main public method that converts an inputStream with HTML to a vector of * HtmlItem objects. * * @param inputStream * The stream with HTML code. * @param inPageURL * The URL where the HTML code comes from. * @param inListener * The object that wants status change messages. * @return A vector of Html Items that holds rendering data to be used when * painting the page. * @throws IMTException * Thrown if there's a problem reading the inputStream */ public void renderHTML(final HtmlDocument document, final InputStream inputStream) throws IMTException { if(mCanvasHeight <=0 || mCanvasWidth <=0) { throw new IMTException(IMTErrorCodes.INVALID_VIEW_SIZE, "", this, "renderHTML", "Invalid view size"); } mHtmlParser = new HtmlParser(this); mDocument = document; mCssStyles = null; mRc = new RenderContext(); mRc.setMaxWidth(mCanvasWidth); Style initialStyle = new Style(Color.black, Color.white, mFonts.getCurrentFont()); LinkStyle linkStyle = new LinkStyle(Color.linkColor, Color.white, Color.linkColor, mFonts.getCurrentFont()); initialStyle.mTransparent = true; //most html elements should be transparent.. mRc.setStyle(initialStyle); mRc.setLinkStyle(linkStyle); //set up default css style mCurrentTagStyle = new HtmlTagWithCss(HtmlTags.BODY); mCurrentTagStyle.addAttribute(CssTags.background_color, Color.white); mCurrentTagStyle.addAttribute(CssTags.color, Color.black); mPrevColor = Color.black; mMaxItemHeight = 0; mScreenNr = 0; mFonts.reset(); mHtmlParser.