Symbian.org/WRTKit/UI/ImageLabel.js
author ivanl
Tue, 16 Jun 2009 10:23:34 +0100
changeset 5 3a3bac500145
parent 0 54498df70f5d
child 6 5e0dece09f96
permissions -rw-r--r--
Added public domain license notification NOTE - not all files in the package are public domain. Refer to in source comments for details.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
5
3a3bac500145 Added public domain license notification
ivanl
parents: 0
diff changeset
     1
// ////////////////////////////////////////////////////////////////////////////
3a3bac500145 Added public domain license notification
ivanl
parents: 0
diff changeset
     2
// Symbian Foundation Example Code
3a3bac500145 Added public domain license notification
ivanl
parents: 0
diff changeset
     3
//
3a3bac500145 Added public domain license notification
ivanl
parents: 0
diff changeset
     4
// This software is in the public domain. No copyright is claimed, and you 
3a3bac500145 Added public domain license notification
ivanl
parents: 0
diff changeset
     5
// may use it for any purpose without license from the Symbian Foundation.
3a3bac500145 Added public domain license notification
ivanl
parents: 0
diff changeset
     6
// No warranty for any purpose is expressed or implied by the authors or
3a3bac500145 Added public domain license notification
ivanl
parents: 0
diff changeset
     7
// the Symbian Foundation. 
3a3bac500145 Added public domain license notification
ivanl
parents: 0
diff changeset
     8
// ////////////////////////////////////////////////////////////////////////////
3a3bac500145 Added public domain license notification
ivanl
parents: 0
diff changeset
     9
0
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    10
///////////////////////////////////////////////////////////////////////////////
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    11
// The ImageLabel class implements a control that displays an image
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    12
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    13
// Constructor.
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    14
function ImageLabel(id, caption, image) {
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    15
    if (id != UI_NO_INIT_ID) {
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    16
        this.init(id, caption, image);
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    17
    }
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    18
}
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    19
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    20
// Label inherits from Control.
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    21
ImageLabel.prototype = new Control(UI_NO_INIT_ID);
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    22
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    23
// Content element for label text.
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    24
ImageLabel.prototype.contentElement = null;
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    25
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    26
// Content element for label text.
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    27
ImageLabel.prototype.image = null;
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    28
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    29
// Initializer - called from constructor.
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    30
ImageLabel.prototype.init = function(id, caption, image) {
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    31
    uiLogger.debug("ImageLabel.init(" + id + ", " + caption + ", " + image + ")");
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    32
    
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    33
    // call superclass initializer
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    34
    Control.prototype.init.call(this, id, caption);
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    35
    
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    36
	this.image = image;
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    37
	
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    38
    // create content element
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    39
    this.contentElement = document.createElement("div");
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    40
    this.controlElement.appendChild(this.contentElement);
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    41
    
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    42
    // set the image
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    43
    this.setImage(image);
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    44
}
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    45
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    46
// Returns the enabled state for the control.
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    47
ImageLabel.prototype.isEnabled = function() {
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    48
    return true;
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    49
}
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    50
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    51
// Returns the focusable state for the control.
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    52
ImageLabel.prototype.isFocusable = function() {
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    53
    return false;
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    54
}
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    55
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    56
// Returns the control text.
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    57
ImageLabel.prototype.getImage = function() {
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    58
    return this.contentElement.innerHTML;
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    59
}
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    60
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    61
// Sets the text for the control.
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    62
ImageLabel.prototype.setText = function(text) {
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    63
    uiLogger.debug("Label.setText(" + text + ")");
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    64
    this.contentElement.innerHTML = (text == null) ? "" : text;
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    65
    this.updateStyleFromState();
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    66
}
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    67
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    68
// Updates the style of the control to reflects the state of the control.
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    69
ImageLabel.prototype.updateStyleFromState = function() {
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    70
    uiLogger.debug("Label.updateStyleFromState()");
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    71
    
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    72
    // set element class names
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    73
    this.setClassName(this.rootElement, "Control");
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    74
    this.setClassName(this.assemblyElement, "ControlAssembly ControlAssemblyNormal");
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    75
    this.setClassName(this.captionElement, "ControlCaption ControlCaptionNormal");
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    76
    this.setClassName(this.controlElement, "ControlElement");
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    77
    this.setClassName(this.contentElement, "LabelText");
54498df70f5d Adding Symbian.org Widget 1.0rc3 source
ivanl
parents:
diff changeset
    78
}