// Dropdown menu control function Dropdown(activatorId, dropdownId) { // store activator and dropdown elements this.activator = document.getElementById(activatorId); this.dropdown = document.getElementById(dropdownId); this.activatorImage = document.getElementById(activatorId + "Image"); // wire up show/hide events registerEventHandler(this.activator,'mouseover', getInstanceDelegate(this, "show")); registerEventHandler(this.activator,'mouseout', getInstanceDelegate(this, "requestHide")); registerEventHandler(this.dropdown,'mouseover', getInstanceDelegate(this, "show")); registerEventHandler(this.dropdown,'mouseout', getInstanceDelegate(this, "requestHide")); // fix visibility and position this.dropdown.style.visibility = 'hidden'; this.dropdown.style.position = 'absolute'; this.reposition(null); // wire up repositioning event registerEventHandler(window, 'resize', getInstanceDelegate(this, "reposition")); } Dropdown.prototype.show = function(e) { clearTimeout(this.timer); this.dropdown.style.visibility = 'visible'; if (this.activatorImage != null) this.activatorImage.src = dropDownHoverImage.src; if (this.activator != null) this.activator.className = "filterOnHover"; } Dropdown.prototype.hide = function(e) { this.dropdown.style.visibility = 'hidden'; if (this.activatorImage != null) this.activatorImage.src = dropDownImage.src; if (this.activator != null) this.activator.className = "filter"; } Dropdown.prototype.requestHide = function(e) { this.timer = setTimeout( getInstanceDelegate(this, "hide"), 250); } Dropdown.prototype.reposition = function(e) { // get position of activator var offsetLeft = 0; var offsetTop = 0; var offsetElement = this.activator; while (offsetElement) { offsetLeft += offsetElement.offsetLeft; offsetTop += offsetElement.offsetTop; offsetElement = offsetElement.offsetParent; } // set position of dropdown relative to it this.dropdown.style.left = offsetLeft; this.dropdown.style.top = offsetTop + this.activator.offsetHeight; } Dropdown.prototype.SetActivatorLabel = function(labelId) { // get the children of the activator node, which includes the label nodes var labelNodes = this.activator.childNodes; for(var labelCount=0; labelCount < labelNodes.length; labelCount++) { if(labelNodes[labelCount].tagName == 'LABEL') { var labelNodeId = labelNodes[labelCount].getAttribute('id'); if (labelNodeId == labelId) { labelNodes[labelCount].style.display = "inline"; } else { labelNodes[labelCount].style.display = "none"; } } } }
# | Change | User | Description | Committed | |
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#1 | 7341 | Erik Purins |
p4.net --- pull p4.net#head |
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//guest/shawn_hladky/P4.Net/release/1.0/doc/html/scripts/Dropdown.js | |||||
#1 | 6106 | Shawn Hladky | P4.Net: Branching release 1.0 | ||
//guest/shawn_hladky/P4.Net/main/doc/html/scripts/Dropdown.js | |||||
#1 | 6105 | Shawn Hladky | P4.Net: Updating documentation output to sandcastle. |