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Alchemy
2011-02-16 16:09:48 +01:00
parent 399a584b6f
commit 339d23c06d
5539 changed files with 2028637 additions and 1 deletions
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www/include/jslibs/yui2.8/examples/treeview/assets/js/TaskNode.js Normal file
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/**
* The check box marks a task complete. It is a simulated form field
* with three states ...
* 0=unchecked, 1=some children checked, 2=all children checked
* When a task is clicked, the state of the nodes and parent and children
* are updated, and this behavior cascades.
*
* @extends YAHOO.widget.TextNode
* @constructor
* @param oData {object} A string or object containing the data that will
* be used to render this node.
* @param oParent {Node} This node's parent node
* @param expanded {boolean} The initial expanded/collapsed state
* @param checked {boolean} The initial checked/unchecked state
*/
YAHOO.widget.TaskNode = function(oData, oParent, expanded, checked) {
if (YAHOO.widget.LogWriter) {
this.logger = new YAHOO.widget.LogWriter(this.toString());
} else {
this.logger = YAHOO;
}
if (oData) {
this.init(oData, oParent, expanded);
this.setUpLabel(oData);
this.setUpCheck(checked);
}
};
YAHOO.extend(YAHOO.widget.TaskNode, YAHOO.widget.TextNode, {
/**
* True if checkstate is 1 (some children checked) or 2 (all children checked),
* false if 0.
* @type boolean
*/
checked: false,
/**
* checkState
* 0=unchecked, 1=some children checked, 2=all children checked
* @type int
*/
checkState: 0,
taskNodeParentChange: function() {
//this.updateParent();
},
setUpCheck: function(checked) {
// if this node is checked by default, run the check code to update
// the parent's display state
if (checked && checked === true) {
this.check();
// otherwise the parent needs to be updated only if its checkstate
// needs to change from fully selected to partially selected
} else if (this.parent && 2 === this.parent.checkState) {
this.updateParent();
}
// set up the custom event on the tree for checkClick
/**
* Custom event that is fired when the check box is clicked. The
* custom event is defined on the tree instance, so there is a single
* event that handles all nodes in the tree. The node clicked is
* provided as an argument. Note, your custom node implentation can
* implement its own node specific events this way.
*
* @event checkClick
* @for YAHOO.widget.TreeView
* @param {YAHOO.widget.Node} node the node clicked
*/
if (this.tree && !this.tree.hasEvent("checkClick")) {
this.tree.createEvent("checkClick", this.tree);
}
this.subscribe("parentChange", this.taskNodeParentChange);
},
/**
* The id of the check element
* @for YAHOO.widget.TaskNode
* @type string
*/
getCheckElId: function() {
return "ygtvcheck" + this.index;
},
/**
* Returns the check box element
* @return the check html element (img)
*/
getCheckEl: function() {
return document.getElementById(this.getCheckElId());
},
/**
* The style of the check element, derived from its current state
* @return {string} the css style for the current check state
*/
getCheckStyle: function() {
return "ygtvcheck" + this.checkState;
},
/**
* Returns the link that will invoke this node's check toggle
* @return {string} returns the link required to adjust the checkbox state
*/
getCheckLink: function() {
return "YAHOO.widget.TreeView.getNode(\'" + this.tree.id + "\'," +
this.index + ").checkClick()";
},
/**
* Invoked when the user clicks the check box
*/
checkClick: function() {
this.logger.log("previous checkstate: " + this.checkState);
if (this.checkState === 0) {
this.check();
} else {
this.uncheck();
}
this.onCheckClick(this);
this.tree.fireEvent("checkClick", this);
},
/**
* Override to get the check click event
*/
onCheckClick: function() {
this.logger.log("onCheckClick: " + this);
},
/**
* Refresh the state of this node's parent, and cascade up.
*/
updateParent: function() {
var p = this.parent;
if (!p || !p.updateParent) {
this.logger.log("Abort udpate parent: " + this.index);
return;
}
var somethingChecked = false;
var somethingNotChecked = false;
for (var i=0, l=p.children.length;i<l;i=i+1) {
var n = p.children[i];
if ("checked" in n) {
if (n.checked) {
somethingChecked = true;
// checkState will be 1 if the child node has unchecked children
if (n.checkState === 1) {
somethingNotChecked = true;
}
} else {
somethingNotChecked = true;
}
}
}
if (somethingChecked) {
p.setCheckState( (somethingNotChecked) ? 1 : 2 );
} else {
p.setCheckState(0);
}
p.updateCheckHtml();
p.updateParent();
},
/**
* If the node has been rendered, update the html to reflect the current
* state of the node.
*/
updateCheckHtml: function() {
if (this.parent && this.parent.childrenRendered) {
this.getCheckEl().className = this.getCheckStyle();
}
},
/**
* Updates the state. The checked property is true if the state is 1 or 2
*
* @param the new check state
*/
setCheckState: function(state) {
this.checkState = state;
this.checked = (state > 0);
},
/**
* Check this node
*/
check: function() {
this.logger.log("check");
this.setCheckState(2);
for (var i=0, l=this.children.length; i<l; i=i+1) {
var c = this.children[i];
if (c.check) {
c.check();
}
}
this.updateCheckHtml();
this.updateParent();
},
/**
* Uncheck this node
*/
uncheck: function() {
this.setCheckState(0);
for (var i=0, l=this.children.length; i<l; i=i+1) {
var c = this.children[i];
if (c.uncheck) {
c.uncheck();
}
}
this.updateCheckHtml();
this.updateParent();
},
// Overrides YAHOO.widget.TextNode
getNodeHtml: function() {
this.logger.log("Generating html");
var sb = [];
var getNode = 'YAHOO.widget.TreeView.getNode(\'' +
this.tree.id + '\',' + this.index + ')';
sb[sb.length] = '<table border="0" cellpadding="0" cellspacing="0">';
sb[sb.length] = '<tr>';
for (var i=0;i<this.depth;++i) {
//sb[sb.length] = '<td class="' + this.getDepthStyle(i) + '">&#160;</td>';
sb[sb.length] = '<td class="' + this.getDepthStyle(i) + '"><div class="ygtvspacer"></div></td>';
}
sb[sb.length] = '<td';
sb[sb.length] = ' id="' + this.getToggleElId() + '"';
sb[sb.length] = ' class="' + this.getStyle() + '"';
if (this.hasChildren(true)) {
sb[sb.length] = ' onmouseover="this.className=';
sb[sb.length] = 'YAHOO.widget.TreeView.getNode(\'';
sb[sb.length] = this.tree.id + '\',' + this.index + ').getHoverStyle()"';
sb[sb.length] = ' onmouseout="this.className=';
sb[sb.length] = 'YAHOO.widget.TreeView.getNode(\'';
sb[sb.length] = this.tree.id + '\',' + this.index + ').getStyle()"';
}
//sb[sb.length] = ' onclick="javascript:' + this.getToggleLink() + '">&#160;';
sb[sb.length] = ' onclick="javascript:' + this.getToggleLink() + '">';
//sb[sb.length] = '</td>';
sb[sb.length] = '<div class="ygtvspacer"></div></td>';
// check box
sb[sb.length] = '<td';
sb[sb.length] = ' id="' + this.getCheckElId() + '"';
sb[sb.length] = ' class="' + this.getCheckStyle() + '"';
sb[sb.length] = ' onclick="javascript:' + this.getCheckLink() + '">';
//sb[sb.length] = '&#160;</td>';
sb[sb.length] = '<div class="ygtvspacer"></div></td>';
sb[sb.length] = '<td>';
sb[sb.length] = '<a';
sb[sb.length] = ' id="' + this.labelElId + '"';
if (this.title) {
sb[sb.length] = ' title="' + this.title + '"';
}
sb[sb.length] = ' class="' + this.labelStyle + '"';
sb[sb.length] = ' href="' + this.href + '"';
sb[sb.length] = ' target="' + this.target + '"';
sb[sb.length] = ' onclick="return ' + getNode + '.onLabelClick(' + getNode +')"';
if (this.hasChildren(true)) {
sb[sb.length] = ' onmouseover="document.getElementById(\'';
sb[sb.length] = this.getToggleElId() + '\').className=';
sb[sb.length] = 'YAHOO.widget.TreeView.getNode(\'';
sb[sb.length] = this.tree.id + '\',' + this.index + ').getHoverStyle()"';
sb[sb.length] = ' onmouseout="document.getElementById(\'';
sb[sb.length] = this.getToggleElId() + '\').className=';
sb[sb.length] = 'YAHOO.widget.TreeView.getNode(\'';
sb[sb.length] = this.tree.id + '\',' + this.index + ').getStyle()"';
}
sb[sb.length] = (this.nowrap) ? ' nowrap="nowrap" ' : '';
sb[sb.length] = ' >';
sb[sb.length] = this.label;
sb[sb.length] = '</a>';
sb[sb.length] = '</td>';
sb[sb.length] = '</tr>';
sb[sb.length] = '</table>';
return sb.join("");
},
toString: function() {
return "TaskNode (" + this.index + ") " + this.label;
}
});