chao
/
mini_cocopi


			
				
					
						
						
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							<!DOCTYPE html>
<html>
<!--
Copyright 2010 The Closure Library Authors. All Rights Reserved.

Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<head>
  <title>goog.ui.Control Demo</title>
  <script src="../base.js"></script>
  <script>
    goog.require('goog.array');
    goog.require('goog.debug.DivConsole');
    goog.require('goog.debug.LogManager');
    goog.require('goog.events');
    goog.require('goog.events.EventType');
    goog.require('goog.log');
    goog.require('goog.object');
    goog.require('goog.ui.Control');
    goog.require('goog.ui.ControlRenderer');
    goog.require('goog.ui.decorate');
    goog.require('goog.ui.registry');
    goog.require('goog.dom.TagName');
  </script>
  <link rel="stylesheet" href="css/demo.css">
  <style>
    /* Demo styles for goog.ui.Control. */
    .goog-control {
      position: relative;
      width: 20ex;
      margin: 2px;
      border: 2px solid #036;
      padding: 2px;
      font: normal 9pt "Trebuchet MS", Tahoma, Arial, sans-serif;
      color: #036;
      background-color:#69c;
      cursor: pointer;
      outline: none;
      -moz-outline: none;
    }

    .goog-control-disabled {
      border-color: #888;
      color: #888;
      background-color: #ccc;
    }

    .goog-control-hover {
      border-color: #369;
      color: #369;
      background-color: #9cf;
    }

    .goog-control-active,
    .goog-control-selected,
    .goog-control-checked {
      border-color: #9cf;
      color: #9cf;
      background-color: #369;
    }

    .goog-control-focused {
      border-color: orange;
    }

    /* Custom control styles. */
    .goog-custom-control {
      position: relative;
      width: 25ex;
      margin: 4px 0;
      border: 2px solid #eee;
      padding: 0;
      cursor: pointer;
      vertical-align: middle;
      outline: none;
      -moz-outline: none;
    }

    .goog-custom-control-outer-box {
      position: relative;
      margin: 0;
      border: 2px solid #ddd;
      padding: 0;
      vertical-align: middle;
    }

    .goog-custom-control-inner-box {
      position: relative;
      margin: 0;
      border: 2px solid #ccc;
      padding: 0;
      vertical-align: middle;
    }

    .goog-custom-control-content {
      position: relative;
      margin: 0;
      border: 2px solid #bbb;
      padding: 4px;
      font-family: Georgia, Times, serif;
      color: #ddd;
      background-color: #aaa;
    }

    .goog-custom-control-hover {
      border-color: #eef;
    }

    .goog-custom-control-hover .goog-custom-control-outer-box {
      border-color: #ddf;
    }

    .goog-custom-control-hover .goog-custom-control-inner-box {
      border-color: #ccf;
    }

    .goog-custom-control-hover .goog-custom-control-content {
      border-color: #bbf;
      background-color: #aaf;
    }

    .goog-custom-control-active .goog-custom-control-content {
      color: #fff;
    }

    .goog-custom-control-focused {
      border-style: dashed;
      border-color: orange;
    }

    /* "Insert" button styles. */
    .goog-edit-insert-icon {
      height: 16px;
      width: 16px;
      margin: 0;
      border: 0;
      padding: 0;
      background: url(../images/toolbar_icons.gif) no-repeat -80px;
      vertical-align: middle;
    }

    .goog-edit-insert-caption {
      margin: 0;
      border: 0;
      padding: 0 2px;
      vertical-align: middle;
      font-weight: bold;
    }

    /* Extra CSS styles. */
    .extra-red {
      border: 1px solid red;
      background-color: #fcc;
    }

    .extra-blue {
      border: 1px solid blue;
      background-color: #ccf;
    }

    .extra-thick-border {
      border-width: 4px;
    }
  </style>
</head>
<body>
  <h1>goog.ui.Control</h1>
  <table border="0" cellpadding="0" cellspacing="4" width="100%">
    <tbody>
      <tr valign="top">
        <td width="67%">
          <!-- Left pane -->
          <fieldset>
            <legend>This control was created programmatically:&nbsp;</legend>
            <div id="c1"></div>
            <br/>
            This control dispatches ENTER, LEAVE, and ACTION events on
            mouseover, mouseout, and mouseup, respectively.  It supports
            keyboard focus.
          </fieldset>
          <br/>
          <fieldset>
            <legend>This was created by decorating a SPAN:&nbsp;</legend>
            <span id="c2"
                class="goog-inline-block goog-control goog-control-disabled"
                style="vertical-align:middle;">
              Decorated Example
            </span>
            <br/>
            <span id="hint" class="hint">
              You need to enable this component first.
            </span>
            <br/>
            <br/>
            This control is configured to dispatch state transition events in
            addition to ENTER, LEAVE, and ACTION.  It also supports keyboard
            focus.  Watch the event log as you interact with this component.
            <br/>
            <br/>
            <label>
              Click here to toggle the component's enabled status:&nbsp;
              <input type="checkbox" id="enable"/>
            </label>
            <br/>
            <label>
              Click here to toggle the component's visiblity:&nbsp;
              <input type="checkbox" id="visible" checked/>
            </label>
          </fieldset>
          <br/>
          <h3>Custom Renderers</h3>
          <fieldset>
            <legend>
              This control was created using a custom renderer:&nbsp;
            </legend>
            <div id="c3"></div>
          </fieldset>
          <br/>
          <fieldset>
            <legend>
              This was created by decorating a DIV via a custom renderer:&nbsp;
            </legend>
            <div id="c4" class="goog-custom-control">
              <span class="goog-inline-block goog-edit-insert-icon">
                &nbsp;
              </span>
              <span class="goog-inline-block goog-edit-insert-caption">
                Insert Picture
              </span>
            </div>
          </fieldset>
          <br/>
          <h3>Extra CSS Styling</h3>
          <fieldset>
            <legend>
              These controls have extra CSS classes applied:&nbsp;
            </legend>
            <div id="c5"></div>
            <div id="c6"></div>
            <br/>
            Use the <b>addClassName</b> API to add additional CSS class names
            to controls, before or after they're rendered or decorated.
          </fieldset>
          <br/>
          <h3>Right-to-Left Rendering</h3>
          <fieldset>
            <legend>
              These controls are rendered right-to-left:&nbsp;
            </legend>
            <p>These right-to-left controls were progammatically created:</p>
            <div id="bidi" style="position:relative;background-color:#ccc;"
                dir="rtl"></div>
            <p>These right-to-left controls were decorated:</p>
            <div style="position:relative;background-color:#ccc;" dir="rtl">
              <div id="c9" class="goog-inline-block goog-control">
                Hello, world
              </div><div id="c10" class="goog-inline-block goog-control">
                Sample control
              </div>
            </div>
            <p class="hint">
              On pre-FF3 Gecko, <b>margin-left</b> and <b>margin-right</b> are
              ignored, so controls render right next to each other.
              A workaround is to include some <b>&amp;nbsp;</b>s in between
              controls.
            </p>
          </fieldset>
        </td>
        <td width="33%">
          <!-- Event log. -->
          <fieldset class="goog-debug-panel">
            <legend>Event Log</legend>
            <div id="log"></div>
          </fieldset>
          <br/>
          <span class="hint">
            The control with the
            <span style="font-weight:bold;color:orange;">orange outline</span>
            has keyboard focus.
          </span>
        </td>
      </tr>
    </tbody>
  </table>
  <div id="perf"></div>
  <script>
    var timer = goog.now();

    // Set up a logger.
    goog.debug.LogManager.getRoot().setLevel(goog.log.Level.ALL);
    var logger = goog.log.getLogger('demo');
    var logconsole = new goog.debug.DivConsole(goog.dom.getElement('log'));
    logconsole.setCapturing(true);

    var EVENTS = goog.object.getValues(goog.ui.Component.EventType);
    goog.log.fine(logger, 'Listening for: ' + EVENTS.join(', ') + '.');

    function logEvent(e) {
      goog.log.info(logger, '"' + e.target.getCaption() + '" dispatched: ' + e.type);
    }

    // Create the first control programmatically, and make it focusable.
    var c1 = new goog.ui.Control(
        goog.dom.createDom(goog.dom.TagName.SPAN, null, 'Hello, ',
            goog.dom.createDom(goog.dom.TagName.B, null, 'world'),
            '!'));
    c1.render(goog.dom.getElement('c1'));
    goog.events.listen(c1, EVENTS, logEvent);

    // Create the second control by decorating an existing element.  We can
    // use goog.ui.decorate to get a Control instance and have it
    // decorate the element, since the element to be decorated has the
    // appropriate "marker" class name.
    var c2 = goog.ui.decorate(goog.dom.getElement('c2'));
    c2.setDispatchTransitionEvents(goog.ui.Component.State.ALL, true);
    goog.events.listen(c2, EVENTS, logEvent);

    // Define a simple custom renderer for the third control.
    function SampleCustomRenderer() {
      goog.ui.ControlRenderer.call(this);
    }
    goog.inherits(SampleCustomRenderer, goog.ui.ControlRenderer);

    // See goog.ui.ControlRenderer#createDom for documentation.
    SampleCustomRenderer.prototype.createDom = function(control) {
      var baseClass = this.getCssClass();
      var classNames = this.getClassNamesForState(control.getState());
      var dom = control.dom_;
      return dom.createDom(goog.dom.TagName.DIV, classNames.join(' '),
          dom.createDom(goog.dom.TagName.DIV, baseClass + '-outer-box',
              dom.createDom(goog.dom.TagName.DIV, baseClass + '-inner-box',
                  dom.createDom(goog.dom.TagName.DIV, baseClass + '-content',
                      control.getContent()))));
    };

    // See goog.ui.ControlRenderer#decorate for documentation.
    SampleCustomRenderer.prototype.decorate = function(control, element) {
      var baseClass = this.getCssClass();
      var dom = control.dom_;
      element.appendChild(
          dom.createDom(goog.dom.TagName.DIV, baseClass + '-outer-box',
              dom.createDom(goog.dom.TagName.DIV, baseClass + '-inner-box',
                  dom.createDom(goog.dom.TagName.DIV, baseClass + '-content',
                      element.childNodes))));
      return SampleCustomRenderer.superClass_.decorate.call(this, control,
          element);
    };

    // See goog.ui.ControlRenderer#getContent for documentation.
    SampleCustomRenderer.prototype.getContent = function(element) {
      if (element) {
        return SampleCustomRenderer.superClass_.getContent.call(this,
            goog.dom.getElementsByTagNameAndClass('div',
                this.getCssClass() + '-content', element)[0]);
      }
      return null;
    };

    // See goog.ui.ControlRenderer#setContent for documentation.
    SampleCustomRenderer.prototype.setContent = function(element, content) {
      if (element) {
        return SampleCustomRenderer.superClass_.setContent.call(this,
            goog.dom.getElementsByTagNameAndClass('div',
                this.getCssClass() + '-content', element)[0],
            content);
      }
    };

    // See goog.ui.ControlRenderer#getCssClass for documentation.
    SampleCustomRenderer.prototype.getCssClass = function() {
      return 'goog-custom-control';
    };

    // Create the singleton instance of our custom renderer.
    var customRenderer = new SampleCustomRenderer();

    // Create the third control using the custom renderer.
    var c3 = new goog.ui.Control('Custom Renderer', customRenderer);
    c3.render(goog.dom.getElement('c3'));
    goog.events.listen(c3, EVENTS, logEvent);

    // Register a decorator factory function for controls to be decorated using
    // our custom renderer.
    goog.ui.registry.setDecoratorByClassName('goog-custom-control', function() {
      // Elements that have the 'goog-custom-control' marker class will be
      // decorated by instances of goog.ui.Control using our custom renderer.
      return new goog.ui.Control(null, customRenderer);
    });

    // Create the fourth control by decorating a DIV.
    var customElem = goog.dom.getElement('c4');
    // getDecorator will use the decorator factory function registered above to
    // create a control to decorate our element.
    var c4 = goog.ui.registry.getDecorator(customElem);
    c4.addClassName('extra-red');
    c4.addClassName('extra-thick-border');
    c4.decorate(customElem);
    goog.events.listen(c4, EVENTS, logEvent);

    var c5 = new goog.ui.Control('Custom Red');
    c5.addClassName('extra-red');
    c5.render(goog.dom.getElement('c5'));
    goog.events.listen(c5, EVENTS, logEvent);

    var c6 = new goog.ui.Control('Custom Blue');
    c6.addClassName('extra-blue');
    c6.render(goog.dom.getElement('c6'));
    c6.addClassName('extra-thick-border');
    goog.events.listen(c6, EVENTS, logEvent);

    // BiDi examples:
    var c7 = new goog.ui.Control('Hello, world');
    c7.addClassName('goog-inline-block');
    c7.render(goog.dom.getElement('bidi'));
    goog.events.listen(c7, EVENTS, logEvent);

    var c8 = new goog.ui.Control('Sample control');
    c8.addClassName('goog-inline-block');
    c8.render(goog.dom.getElement('bidi'));
    goog.events.listen(c8, EVENTS, logEvent);

    var c9 = goog.ui.decorate(goog.dom.getElement('c9'));
    goog.events.listen(c9, EVENTS, logEvent);

    var c10 = goog.ui.decorate(goog.dom.getElement('c10'));
    goog.events.listen(c10, EVENTS, logEvent);

    // Add some event handling to the second control, which dispatches state
    // transition events.

    goog.events.listen(c2, goog.ui.Component.EventType.HIGHLIGHT,
        function(e) {
          goog.dom.setTextContent(goog.dom.getElement('hint'),
              'Click to activate.');
        });

    goog.events.listen(c2, [goog.ui.Component.EventType.ENABLE,
      goog.ui.Component.EventType.UNHIGHLIGHT],
        function(e) {
          goog.dom.setTextContent(goog.dom.getElement('hint'),
              'Mouse over for instructions.');
        });

    goog.events.listen(c2, goog.ui.Component.EventType.DISABLE,
        function(e) {
          goog.dom.setTextContent(goog.dom.getElement('hint'),
              'You need to enable this component first.');
        });

    goog.events.listen(c2, goog.ui.Component.EventType.ACTIVATE,
        function(e) {
          goog.dom.setTextContent(goog.dom.getElement('hint'),
              'Release the mouse button to deactivate.');
        });

    goog.events.listen(c2, goog.ui.Component.EventType.DEACTIVATE,
        function(e) {
          goog.dom.setTextContent(goog.dom.getElement('hint'), 'You got it!');
        });

    goog.events.listen(goog.dom.getElement('enable'),
        goog.events.EventType.CLICK,
        function(e) {
          c2.setEnabled(e.target.checked);
        });

    goog.events.listen(goog.dom.getElement('visible'),
        goog.events.EventType.CLICK,
        function(e) {
          c2.setVisible(e.target.checked);
        });

    goog.dom.setTextContent(goog.dom.getElement('perf'),
        (goog.now() - timer) + 'ms');
  </script>
</body>
</html>