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73 lines
2.1 KiB
Java
73 lines
2.1 KiB
Java
package org.gcube.portlets.user.newsfeed.client.ui;
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import java.util.HashMap;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.uibinder.client.UiBinder;
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import com.google.gwt.uibinder.client.UiField;
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import com.google.gwt.user.client.Random;
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import com.google.gwt.user.client.ui.Composite;
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import com.google.gwt.user.client.ui.HTML;
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import com.google.gwt.user.client.ui.Widget;
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public class AvatarReplacement extends Composite {
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private static NoAvatarUiBinder uiBinder = GWT.create(NoAvatarUiBinder.class);
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/**
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* to maintain the color assigned to an avatar replacement, for each page load
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* this hashmap maintain the assigned users color, chosen reandomly at the beginning
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*/
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public static final HashMap<String, String> avatarReplacementAssignedColors = new HashMap<String, String>();
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interface NoAvatarUiBinder extends UiBinder<Widget, AvatarReplacement> {
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}
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@UiField HTML avatarBox;
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/**
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* the random colors
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*/
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private String[] randomColors = {
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"#8e8e93",
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"#ff2d55",
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"#ff3b30",
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"#ff9500",
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"#ffcc00",
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"#4cd964",
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"#5ac8fa",
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"#34aadc",
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"#007aff",
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"#5856d6"
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};
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public AvatarReplacement() {
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initWidget(uiBinder.createAndBindUi(this));
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}
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public void setInitials(String username, String firstName, String lastName) {
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pickRandomColor(username);
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String first = "A";
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if (firstName != null && firstName.trim().length() > 0)
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first = firstName.trim().substring(0, 1);
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String second = "Z";
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if (lastName != null && lastName.trim().length() > 0)
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second = lastName.trim().substring(0, 1);
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avatarBox.setText(first+second);
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}
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/**
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* randomize of does not find it, else color is maintained through all the session
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* @param username
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*/
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private void pickRandomColor(String username) {
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if (! avatarReplacementAssignedColors.containsKey(username)) {
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String randomColor = randomColors[Random.nextInt(randomColors.length)];
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avatarBox.getElement().getStyle().setBackgroundColor(randomColor);
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avatarReplacementAssignedColors.put(username, randomColor);
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} else
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avatarBox.getElement().getStyle().setBackgroundColor(avatarReplacementAssignedColors.get(username));
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}
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}
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