Francisco Jesús Martínez Mimbrera
190 lines
3.7 KiB
Java
190 lines
3.7 KiB
Java
package flintstones.helper.html;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.Map.Entry;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.browser.Browser;
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import org.eclipse.swt.layout.FillLayout;
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import org.eclipse.swt.widgets.Composite;
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import org.osgi.framework.FrameworkUtil;
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import flintstones.helper.FileHelper;
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import flintstones.helper.html.tags.Body;
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import flintstones.helper.html.tags.Div;
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import flintstones.helper.html.tags.HtmlTag;
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/**
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* The Class HtmlWidget.
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*/
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public abstract class HtmlWidget {
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/** The base. */
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Composite base;
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/** The browser. */
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protected Browser browser;
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protected HtmlTag disabled = new Div();
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protected HtmlTag body = new Body();
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boolean debug = false;
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boolean isDisabled = false;
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private HashMap<String, HashMap<String, String>> userCss = new HashMap<>();
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/**
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* Instantiates a new html widget.
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*
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* @param base the base
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*/
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public HtmlWidget(Composite base) {
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this.base = base;
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// If the composite to draw had an HtmlWidget, it just delete it so this new
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// widget will replace it.
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// It the composite have any other item, exception.
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if (base.getChildren().length > 0) {
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Arrays.stream(base.getChildren()).forEach(k -> {
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if (k instanceof Browser) {
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k.dispose();
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} else {
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throw new RuntimeException("Composite must have a HTMLWidget or be empty");
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}
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});
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}
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base.setLayout(new FillLayout());
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browser = new Browser(base, SWT.NONE);
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browser.setText("");
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base.layout();
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body.add(disabled);
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}
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/**
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* Render.
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*/
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public void render() {
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StringBuilder sb = new StringBuilder();
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sb.append("<html><!DOCTYPE html>");
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sb.append(getResult());
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// Style
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sb.append("<style>");
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sb.append(getBaseStyle());
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sb.append(getStyle());
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sb.append(getUserStyle());
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sb.append("</style>");
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// Script
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sb.append("<script>");
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sb.append(getBaseScript());
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sb.append(getScript());
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sb.append("</script>");
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sb.append("</html>");
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browser.setText(sb.toString());
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}
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/**
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* Gets the result.
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*
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* @return the result
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*/
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protected abstract String getResult();
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/**
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* Gets the style.
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*
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* @return the style
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*/
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protected String getStyle() {
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return "";
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};
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/**
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* Gets the script.
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*
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* @return the script
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*/
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String getScript() {
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return "";
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};
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/**
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* Gets the base style.
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*
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* @return the base style
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*/
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private String getBaseStyle() {
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return FileHelper.readFile("./assets/css/widget.css", FrameworkUtil.getBundle(getClass()));
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}
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private String getBaseScript() {
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if (!debug)
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return "";
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return FileHelper.readFile("./assets/js/debug.js", FrameworkUtil.getBundle(getClass()));
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}
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/**
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* Gets the parent.
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*
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* @return the parent
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*/
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public Composite getParent() {
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return base;
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}
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public void setCss(String selector, String key, String value) {
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HashMap<String, String> selectorMap = userCss.get(selector);
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if (selectorMap == null)
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selectorMap = new HashMap<>();
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selectorMap.put(key, value);
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userCss.put(selector, selectorMap);
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}
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private String getUserStyle() {
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StringBuilder sb = new StringBuilder();
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for (Entry<String, HashMap<String, String>> selectorEntry : userCss.entrySet()) {
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String selector = selectorEntry.getKey();
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sb.append(selector);
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sb.append("{ ");
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for (Entry<String, String> propertyEntry : selectorEntry.getValue().entrySet()) {
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String key = propertyEntry.getKey();
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String val = propertyEntry.getValue();
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sb.append(key);
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sb.append(":");
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sb.append(val);
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sb.append(";");
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}
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sb.append("}");
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}
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return sb.toString();
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}
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public Browser getBrowser() {
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return browser;
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}
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public void setEnabled(boolean isEnabled) {
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if (isEnabled)
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disabled.deleteClass("disabled");
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else
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disabled.addClass("disabled");
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render();
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}
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}
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