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1
16 package com.google.gwt.sample.kitchensink.client;
17
18 import com.google.gwt.user.client.DOM;
19 import com.google.gwt.user.client.ui.ClickListener;
20 import com.google.gwt.user.client.ui.HTML;
21 import com.google.gwt.user.client.ui.HorizontalPanel;
22 import com.google.gwt.user.client.ui.KeyboardListenerAdapter;
23 import com.google.gwt.user.client.ui.PasswordTextBox;
24 import com.google.gwt.user.client.ui.RichTextArea;
25 import com.google.gwt.user.client.ui.TextArea;
26 import com.google.gwt.user.client.ui.TextBox;
27 import com.google.gwt.user.client.ui.TextBoxBase;
28 import com.google.gwt.user.client.ui.VerticalPanel;
29 import com.google.gwt.user.client.ui.Widget;
30
31
34 public class Text extends Sink {
35
36 public static SinkInfo init() {
37 return new SinkInfo(
38 "Text",
39 "<h2>Basic and Rich Text</h2>"
40 + "<p>GWT includes the standard complement of text-entry widgets, each of which "
41 + "supports keyboard and selection events you can use to control text entry. "
42 + "In particular, notice that the selection range for each widget is "
43 + "updated whenever you press a key.</p>"
44 + "<p>Also notice the rich-text area to the right. This is supported on "
45 + "all major browsers, and will fall back gracefully to the level of "
46 + "functionality supported on each.</p>") {
47
48 public Sink createInstance() {
49 return new Text();
50 }
51
52 public String  getColor() {
53 return "#2fba10";
54 }
55 };
56 }
57
58 private PasswordTextBox passwordText = new PasswordTextBox();
59 private TextArea textArea = new TextArea();
60 private TextBox textBox = new TextBox();
61
62 public Text() {
63 TextBox readOnlyTextBox = new TextBox();
64 readOnlyTextBox.setReadOnly(true);
65 readOnlyTextBox.setText("read only");
66
67 VerticalPanel vp = new VerticalPanel();
68 vp.setSpacing(8);
69 vp.add(new HTML("Normal text box:"));
70 vp.add(createTextThing(textBox, true));
71 vp.add(createTextThing(readOnlyTextBox, false));
72 vp.add(new HTML("Password text box:"));
73 vp.add(createTextThing(passwordText, true));
74 vp.add(new HTML("Text area:"));
75 vp.add(createTextThing(textArea, true));
76
77 textArea.setVisibleLines(5);
78
79 Widget richText = createRichText();
80 richText.setWidth("32em");
81
82 HorizontalPanel hp = new HorizontalPanel();
83 hp.add(vp);
84 hp.add(richText);
85 hp.setCellHorizontalAlignment(vp, HorizontalPanel.ALIGN_LEFT);
86 hp.setCellHorizontalAlignment(richText, HorizontalPanel.ALIGN_RIGHT);
87
88 initWidget(hp);
89 hp.setWidth("100%");
90 }
91
92 public void onShow() {
93 }
94
95 private Widget createRichText() {
96 RichTextArea area = new RichTextArea();
97 RichTextToolbar tb = new RichTextToolbar(area);
98
99 VerticalPanel p = new VerticalPanel();
100 p.add(tb);
101 p.add(area);
102
103 area.setHeight("14em");
104 area.setWidth("100%");
105 tb.setWidth("100%");
106 p.setWidth("100%");
107 DOM.setStyleAttribute(p.getElement(), "margin-right", "4px");
108 return p;
109 }
110
111 private Widget createTextThing(final TextBoxBase textBox,
112 boolean addSelection) {
113 HorizontalPanel p = new HorizontalPanel();
114 p.setSpacing(4);
115
116 textBox.setWidth("20em");
117 p.add(textBox);
118
119 if (addSelection) {
120 final HTML echo = new HTML();
121
122 p.add(echo);
123 textBox.addKeyboardListener(new KeyboardListenerAdapter() {
124 public void onKeyUp(Widget sender, char keyCode, int modifiers) {
125 updateText(textBox, echo);
126 }
127 });
128
129 textBox.addClickListener(new ClickListener() {
130 public void onClick(Widget sender) {
131 updateText(textBox, echo);
132 }
133 });
134
135 updateText(textBox, echo);
136 }
137 return p;
138 }
139
140 private void updateText(TextBoxBase text, HTML echo) {
141 echo.setHTML("Selection: " + text.getCursorPos() + ", "
142 + text.getSelectionLength());
143 }
144 }
145 |
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