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Diffstat (limited to 'src/com/itmill/toolkit/terminal/web/CollectionThemeSource.java')
| -rw-r--r-- | src/com/itmill/toolkit/terminal/web/CollectionThemeSource.java | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/src/com/itmill/toolkit/terminal/web/CollectionThemeSource.java b/src/com/itmill/toolkit/terminal/web/CollectionThemeSource.java new file mode 100644 index 0000000000..5f0de2e54d --- /dev/null +++ b/src/com/itmill/toolkit/terminal/web/CollectionThemeSource.java @@ -0,0 +1,200 @@ +/* ************************************************************************* + + IT Mill Toolkit + + Development of Browser User Intarfaces Made Easy + + Copyright (C) 2000-2006 IT Mill Ltd + + ************************************************************************* + + This product is distributed under commercial license that can be found + from the product package on license/license.txt. Use of this product might + require purchasing a commercial license from IT Mill Ltd. For guidelines + on usage, see license/licensing-guidelines.html + + ************************************************************************* + + For more information, contact: + + IT Mill Ltd phone: +358 2 4802 7180 + Ruukinkatu 2-4 fax: +358 2 4802 7181 + 20540, Turku email: info@itmill.com + Finland company www: www.itmill.com + + Primary source for information and releases: www.itmill.com + + ********************************************************************** */ + +package com.itmill.toolkit.terminal.web; + +import java.io.InputStream; +import java.util.Collection; +import java.util.Iterator; +import java.util.LinkedList; +import java.util.List; + +/** Theme source for consisting of collection of other theme sources. + * This class is used to implement the retrieval of themes + * from multiple sources. Also this class implements the inheritance + * of themes by first retrieving the relevant parent theme information. + * @author IT Mill Ltd. + * @version @VERSION@ + * @since 3.0 + */ +public class CollectionThemeSource implements ThemeSource { + + private List sources = new LinkedList(); + + /** + * @see com.itmill.toolkit.terminal.web.ThemeSource#getName() + */ + public String getName() { + return "THEMES"; + } + + /** + * @see com.itmill.toolkit.terminal.web.ThemeSource#getXSLStreams(Theme, WebBrowser) + */ + public Collection getXSLStreams(Theme theme, WebBrowser type) + throws ThemeException { + Collection xslFiles = new LinkedList(); + + // Add parent theme XSL + xslFiles.addAll(this.getParentXSLStreams(theme, type)); + + // Add theme XSL, Handle subdirectories: return the first match + for (Iterator i = this.sources.iterator(); i.hasNext();) { + ThemeSource source = (ThemeSource) i.next(); + if (source.getThemes().contains(theme)) + xslFiles.addAll(source.getXSLStreams(theme, type)); + } + + return xslFiles; + } + + private Collection getParentXSLStreams(Theme theme, WebBrowser type) + throws ThemeException { + Collection xslFiles = new LinkedList(); + Collection parents = theme.getParentThemes(); + for (Iterator i = parents.iterator(); i.hasNext();) { + String name = (String) i.next(); + Theme parent = this.getThemeByName(name); + if (parent != null) { + xslFiles.addAll(this.getXSLStreams(parent, type)); + } else { + throw new ThemeSource.ThemeException( + "Parent theme not found for name: " + name); + } + } + return xslFiles; + } + + /** + * @see com.itmill.toolkit.terminal.web.ThemeSource#getModificationTime() + */ + public long getModificationTime() { + long modTime = 0; + for (Iterator i = this.sources.iterator(); i.hasNext();) { + long t = ((ThemeSource) i.next()).getModificationTime(); + if (t > modTime) + modTime = t; + } + return modTime; + } + + /** + * @see com.itmill.toolkit.terminal.web.ThemeSource#getResource(String) + */ + public InputStream getResource(String resourceId) throws ThemeException { + + // Resolve theme name and resource name + int delim = resourceId.indexOf("/"); + String subResourceId = ""; + String themeName = ""; + if (delim >=0 && delim < resourceId.length() - 1) { + subResourceId = resourceId.substring(delim + 1); + themeName = resourceId.substring(0, delim); + } + + // Get list of themes to look for the resource + List themes = new LinkedList(); + if (themeName.length() > 0) { + Theme t = this.getThemeByName(themeName); + if (t != null) { + themes.add(t.getName()); + addAllParents(themes, t); + } + } + + // Iterate all themes in list + for (Iterator ti = themes.iterator(); ti.hasNext();) { + String name = (String) ti.next(); + String resource = name + "/" + subResourceId; + // Search all sources + for (Iterator i = this.sources.iterator(); i.hasNext();) { + try { + InputStream in = + ((ThemeSource) i.next()).getResource(resource); + if (in != null) + return in; + } catch (ThemeException e) { + // Ignore and continue to next source + } + } + } + + throw new ThemeException( + "Theme resource not found:" + + subResourceId + + " in themes " + + themes); + } + /** Recusrivelu get list of parent themes in inheritace order. + * + * @param t Theme which parents should be listed + * @return Collection of themes in inheritance order. + */ + private void addAllParents(List list, Theme t) { + if (t == null) + return; + + List parents = t.getParentThemes(); + list.addAll(parents); + for (Iterator i = parents.iterator(); i.hasNext();) { + addAllParents(list, this.getThemeByName((String) i.next())); + } + } + + /** + * @see com.itmill.toolkit.terminal.web.ThemeSource#getThemes() + */ + public Collection getThemes() { + Collection themes = new LinkedList(); + for (Iterator i = this.sources.iterator(); i.hasNext();) { + Collection c = ((ThemeSource) i.next()).getThemes(); + themes.addAll(c); + } + return themes; + } + + /** + * @see com.itmill.toolkit.terminal.web.ThemeSource#getThemeByName(String) + */ + public Theme getThemeByName(String name) { + for (Iterator i = this.sources.iterator(); i.hasNext();) { + Theme t = ((ThemeSource) i.next()).getThemeByName(name); + if (t != null) + return t; + } + return null; + } + + /**Add new theme source to this collection. + * @param source Theme source to be added. + */ + public void add(ThemeSource source) { + this.sources.add(source); + } + +} |