Event logging example : Event « SmartClient « JavaScript DHTML






Event logging example

 
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  Event logging example

</TD><TD CLASS=pageHeader ALIGN=RIGHT BGCOLOR=WHITE>

  Isomorphic SmartClient

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<!--------------------------
  Example code starts here
---------------------------->

<!-- HTML form containing event log fields and controls -->
<DIV STYLE='padding:0px 0px 0px 20px' CLASS='normal'>
<form action="" method="POST" name="f">
<table><tr>
<td CLASS="normal"><textarea name="eventlog" cols="25" rows="20"></textarea></td>
<td valign=bottom CLASS="normal"><input type="Button" name="clearlog" value="Clear Log" onClick="clearEventLog()"> </td>
<td valign=bottom CLASS="normal"><A HREF="javascript:void alert('click -> anchor')" ONMOUSEOVER='if (isc.Page.isLoaded()) logEvent("mouseover -> anchor");'>An anchor</A></td>
</tr></table>
<br><br>
<input name="mousemovelog" size="40">&nbsp;&nbsp;Last mouseMove/dragMove event<br><br>
<input name="mousestilldownlog" size="40">&nbsp;&nbsp;Last mouseStillDown event<br><br>
<input type="Checkbox" name="logPageEvents">Log page events&nbsp;&nbsp;
<input type="Checkbox" name="disableDragWidget" onclick="this.checked ? green.disable() : green.enable()">Disable green widget&nbsp;&nbsp;
<input type="Checkbox" name="disableDropWidget" onclick="this.checked ? blue.disable() : blue.enable()">Disable blue widget<br><br>
<input name="pageeventlog" size="40">&nbsp;&nbsp;Last page level mouse event
</form>
</DIV>

<SCRIPT>

// --------------------------------------------------
//    drag & drop widgets with event handlers
// --------------------------------------------------

//    pink widget -- normal widget, no dragging properties
Canvas.create({
    ID:"pink",

    // visual properties
    left: 340,
    top:50,
    width:80,
    height:80,
    contents:"normal widget",
    backgroundColor:"pink",

    // event handlers
    mouseDown:"logEvent('mouseDown -> pink')",
    mouseStillDown:"mouseStillDownField.value='mouseStillDown -> pink ('+timeStamp()+')'",
    mouseUp:"logEvent('mouseUp -> pink')",
    click:"logEvent('click -> pink')",
    doubleClick:"logEvent('doubleClick -> pink')",
    mouseOver:"logEvent('mouseOver -> pink')",
    mouseMove:"mouseMoveField.value='mouseMove -> pink '+this.getOffsetX()+','+this.getOffsetY()",
    mouseOut:"logEvent('mouseOut -> pink')",
    dragStart:"logEvent('dragStart -> pink')",
    dragStop:"logEvent('dragStop -> pink')"
});


//    green widget: draggable with 'drag target' drag style
Canvas.create({
    ID:"green",
    // visual properties
    left: 440,
    top:50,
    width:80,
    height:80,
    contents:"drag me (canDrag)",
    backgroundColor:"lightgreen",

    // drag & drop properties
    canDrag:true,
    canDrop:true,
    dragAppearance:"tracker",
    setDragTracker:function(){EventHandler.setDragTracker(this.imgHTML('yinyang_icon.gif',20,20),20,20)},

    // event handlers
    mouseDown:"logEvent('mouseDown -> green')",
    mouseStillDown:"mouseStillDownField.value='mouseStillDown -> green ('+timeStamp()+')'",
    mouseUp:"logEvent('mouseUp -> green')",
    click:"logEvent('click -> green')",
    doubleClick:"logEvent('doubleClick -> green')",
    mouseOver:"logEvent('mouseOver -> green')",
    mouseMove:"mouseMoveField.value='mouseMove -> green '+this.getOffsetX()+','+this.getOffsetY()",
    mouseOut:"logEvent('mouseOut -> green')",
    dragStart:"logEvent('dragStart -> green')",
    dragMove:"mouseMoveField.value='dragMove -> green '+this.getOffsetX()+','+this.getOffsetY()",
    dragStop:"logEvent('dragStop -> green')"
});




//    blue widget: accepts drop of other widgets
Canvas.create({
    ID:"blue",
    // visual properties
    left: 340,
    top:150,
    width:80,
    height:80,
    contents:"drop on me (canAcceptDrop)",
    backgroundColor:"skyblue",

    // drag & drop properties
    canAcceptDrop:true,

    // event handlers
    mouseDown:"logEvent('mouseDown -> blue')",
    mouseStillDown:"mouseStillDownField.value='mouseStillDown -> blue ('+timeStamp()+')'",
    mouseUp:"logEvent('mouseUp -> blue')",
    click:"logEvent('click -> blue')",
    doubleClick:"logEvent('doubleClick -> blue')",
    mouseOver:"logEvent('mouseOver -> blue')",
    mouseMove:"mouseMoveField.value='mouseMove -> blue '+this.getOffsetX()+','+this.getOffsetY()",
    mouseOut:"logEvent('mouseOut -> blue')",
    dropOver:"logEvent('dropOver -> blue')",
    dropMove:"mouseMoveField.value='dropMove -> blue '+this.getOffsetX()+','+this.getOffsetY()",
    dropOut:"logEvent('dropOut -> blue')",
    drop:"logEvent('drop -> blue')"
});


//    yellow widget: can drag reposition, can drop
Canvas.create({
    ID:"yellow",
    // visual properties
    left: 540,
    top:50,
    width:80,
    height:80,
    contents:"drag reposition me (canDragReposition, canDrop)",
    backgroundColor:"yellow",

    // drag & drop properties
    canDragReposition:true,
    canDrop:true,
    dragAppearance:"target",


    // event handlers
    mouseDown:"logEvent('mouseDown -> yellow')",
    mouseStillDown:"mouseStillDownField.value='mouseStillDown -> yellow ('+timeStamp()+')'",
    mouseUp:"logEvent('mouseUp -> yellow')",
    click:"logEvent('click -> yellow')",
    doubleClick:"logEvent('doubleClick -> yellow')",
    mouseOver:"logEvent('mouseOver -> yellow')",
    mouseMove:"mouseMoveField.value='mouseMove -> yellow '+this.getOffsetX()+','+this.getOffsetY()",
    mouseOut:"logEvent('mouseOut -> yellow')",
    dragRepositionStart:"logEvent('dragRepositionStart -> yellow');",
    dragRepositionMove:"mouseMoveField.value='dragRepositionMove -> yellow '+this.getOffsetX()+','+this.getOffsetY()",
    dragRepositionStop:"logEvent('dragRepositionStop -> yellow')"
});


//    purple widget: can resize and move, can't drop
Canvas.create({
    ID:"purple",
    // visual properties
    left: 540,
    top:150,
    width:150,
    height:100,
    contents:"resize and move me (canDragResize, canDragReposition)",
    backgroundColor:"orchid",
    overflow:"hidden",

    // drag & drop properties
    canDragResize:true,
    canDragReposition:true,

    // event handlers
    mouseDown:"logEvent('mouseDown -> purple')",
    mouseStillDown:"mouseStillDownField.value='mouseStillDown -> purple ('+timeStamp()+')'",
    mouseUp:"logEvent('mouseUp -> purple')",
    click:"logEvent('click -> purple')",
    doubleClick:"logEvent('doubleClick -> purple')",
    mouseOver:"logEvent('mouseOver -> purple')",
    mouseMove:"mouseMoveField.value='mouseMove -> purple '+this.getOffsetX()+','+this.getOffsetY()",
    mouseOut:"logEvent('mouseOut -> purple')",
    dragResizeStart:"logEvent('dragResizeStart -> purple')",
    dragResizeMove:"mouseMoveField.value='dragResizeMove -> purple '+this.getOffsetX()+','+this.getOffsetY()",
    dragResizeStop:"logEvent('dragResizeStop -> purple')",
    dragRepositionStart:"logEvent('dragRepositionStart -> purple')",
    dragRepositionMove:"mouseMoveField.value='dragRepositionMove -> purple '+this.getOffsetX()+','+this.getOffsetY()",
    dragRepositionStop:"logEvent('dragRepositionStop -> purple')"
});



//    button
Button.create({
    ID:"button",
    // visual properties
    left: 340,
    top:250,
    width:150,
    title:"A Button",
    overflow:"hidden",
    showDown:true,

    // drag & drop properties

    // event handlers
    mouseDown:"this.Super('mouseDown');logEvent('mouseDown -> button')",
    mouseStillDown:"this.Super('mouseStillDown');mouseStillDownField.value='mouseStillDown -> button ('+timeStamp()+')'",
    mouseUp:"this.Super('mouseUp');logEvent('mouseUp -> button')",
    click:"this.Super('click');logEvent('click -> button')",
    doubleClick:"this.Super('doubleClick');logEvent('doubleClick -> button')",
    mouseOver:"this.Super('mouseOver');logEvent('mouseOver -> button')",
    mouseMove:"this.Super('mouseMove');mouseMoveField.value='mouseMove -> button '+this.getOffsetX()+','+this.getOffsetY()",
    mouseOut:"this.Super('mouseOut');logEvent('mouseOut -> button')"
});


// --------------------------------------------------
//    global event handlers
// --------------------------------------------------

Page.setEvent("load", "initializeForm()");

// set global handlers to log page events
Page.setEvent("load", "logPageEvent('load')");
Page.setEvent("unload", "if (pageEvents.checked) alert('unload')");
Page.setEvent("resize", "logPageEvent('resize')");
Page.setEvent("showContextMenu", "logPageEvent('showContextMenu')");

// set global handlers to log mouse events
Page.setEvent("mouseOver", "logPageEvent('mouseOver')");
Page.setEvent("mouseMove", "if (pageEvents.checked) pageEventField.value = 'mouseMove -> Page '+EventHandler.getX()+','+EventHandler.getY()");
Page.setEvent("mouseOut", "logPageEvent('mouseOut')");
Page.setEvent("mouseDown", "logPageEvent('mouseDown')");
Page.setEvent("mouseUp", "logPageEvent('mouseUp')");
Page.setEvent("click", "logPageEvent('click')");
Page.setEvent("doubleClick", "logPageEvent('doubleClick')");

// set global handlers to log drag-and-drop events
Page.setEvent("dragStart", "logPageEvent('dragStart')");
Page.setEvent("dragOver", "logPageEvent('dragOver')");
Page.setEvent("dragMove", "if (pageEvents.checked) pageEventField.value = 'dragMove -> Page '+EventHandler.getX()+','+EventHandler.getY()");
Page.setEvent("dragOut", "logPageEvent('dragOut')");
Page.setEvent("dragStop", "logPageEvent('dragStop')");

// set global handlers to log drag-and-drop events
Page.setEvent("dragRepositionStart", "logPageEvent('dragRepositionStart')");
Page.setEvent("dragRepositionMove", "if (pageEvents.checked) pageEventField.value = 'dragRepositionMove -> Page '+EventHandler.getX()+','+EventHandler.getY()");
Page.setEvent("dragRepositionStop", "logPageEvent('dragRepositionStop')");

// set global handlers to log drag-and-drop events
Page.setEvent("dragResizeStart", "logPageEvent('dragResizeStart')");
Page.setEvent("dragResizeMove", "if (pageEvents.checked) pageEventField.value = 'dragResizeMove -> Page '+EventHandler.getX()+','+EventHandler.getY()");
Page.setEvent("dragResizeStop", "logPageEvent('dragResizeStop')");

// set global handlers to log drag-and-drop events
Page.setEvent("dropOver", "logPageEvent('dropOver')");
Page.setEvent("dropMove", "if (pageEvents.checked) pageEventField.value = 'dropMove -> Page '+EventHandler.getX()+','+EventHandler.getY()");
Page.setEvent("dropOut", "logPageEvent('dropOut')");
Page.setEvent("drop", "logPageEvent('drop')");


// --------------------------------------------------
//    scripts for working with the HTML form
// --------------------------------------------------

// shortcut references to form elements
var eventLog = document.f.eventlog;
var mouseMoveField = document.f.mousemovelog;
var pageEventField = document.f.pageeventlog;
var mouseStillDownField = document.f.mousestilldownlog;
var pageEvents = document.f.logPageEvents;

// add a new line to the event log
function logEvent(msg) {
    eventLog.value += msg+(Browser.isMac ? '\r' : '\n');
}

// log a page event if the logPageEvents checkbox is ticked
function logPageEvent(msg) {
    if (pageEvents.checked) logEvent(msg+" -> Page");
}

// clear the event log
function clearEventLog() {
    eventLog.value = "--- Event Log ---\n";
    mouseMoveField.value = "";
    mouseStillDownField.value = "";
    pageEventField.value = "";
}

// initialize the form
function initializeForm() {
    clearEventLog();
    pageEvents.checked = false;
    document.f.disableDragWidget.checked = false;
    document.f.disableDropWidget.checked = false;
}

</SCRIPT>
</BODY>
</HTML>

   
  








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