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TiddlyWiki5/editions/tw2/source/tiddlywiki/js/Popup.js
2012-11-16 21:20:27 +00:00

105 lines
2.8 KiB
JavaScript
Executable File

//--
//-- Popup menu
//--
var Popup = {
stack: [] // Array of objects with members root: and popup:
};
Popup.create = function(root,elem,className)
{
var stackPosition = this.find(root,"popup");
Popup.remove(stackPosition+1);
var popup = createTiddlyElement(document.body,elem || "ol","popup",className || "popup");
popup.stackPosition = stackPosition;
Popup.stack.push({root: root, popup: popup});
return popup;
};
Popup.onDocumentClick = function(ev)
{
var e = ev || window.event;
if(e.eventPhase == undefined)
Popup.remove();
else if(e.eventPhase == Event.BUBBLING_PHASE || e.eventPhase == Event.AT_TARGET)
Popup.remove();
return true;
};
//# valign : "top" or "bottom" (optional)
//# defaults to "bottom" for regular popups, "top" for nested popups
//# halign : "left" or "right" (optional)
//# defaults to "left" for regular popups, "right" for nested popups
//# offset : {x: number, y: number} (optional)
//# defaults to {x:0,y:0}
Popup.show = function(valign,halign,offset)
{
var curr = Popup.stack[Popup.stack.length-1];
this.place(curr.root,curr.popup,valign,halign,offset);
jQuery(curr.root).addClass("highlight");
if(config.options.chkAnimate && anim && typeof Scroller == "function")
anim.startAnimating(new Scroller(curr.popup));
else
window.scrollTo(0,ensureVisible(curr.popup));
};
Popup.place = function(root,popup,valign,halign,offset)
{
if(!offset)
offset = {x:0,y:0};
if(popup.stackPosition >= 0 && !valign && !halign) {
offset.x = offset.x + root.offsetWidth;
} else {
offset.x = (halign == "right") ? offset.x + root.offsetWidth : offset.x;
offset.y = (valign == "top") ? offset.y : offset.y + root.offsetHeight;
}
var rootLeft = findPosX(root);
var rootTop = findPosY(root);
var popupLeft = rootLeft + offset.x;
var popupTop = rootTop + offset.y;
var winWidth = findWindowWidth();
if(popup.offsetWidth > winWidth*0.75)
popup.style.width = winWidth*0.75 + "px";
var popupWidth = popup.offsetWidth;
var scrollWidth = winWidth - document.body.offsetWidth;
if(popupLeft + popupWidth > winWidth - scrollWidth - 1) {
if(halign == "right")
popupLeft = popupLeft - root.offsetWidth - popupWidth;
else
popupLeft = winWidth - popupWidth - scrollWidth - 1;
}
popup.style.left = popupLeft + "px";
popup.style.top = popupTop + "px";
popup.style.display = "block";
};
Popup.find = function(e)
{
var t,pos = -1;
for(t=this.stack.length-1; t>=0; t--) {
if(isDescendant(e,this.stack[t].popup))
pos = t;
}
return pos;
};
Popup.remove = function(pos)
{
if(!pos) pos = 0;
if(Popup.stack.length > pos) {
Popup.removeFrom(pos);
}
};
Popup.removeFrom = function(from)
{
var t;
for(t=Popup.stack.length-1; t>=from; t--) {
var p = Popup.stack[t];
jQuery(p.root).removeClass("highlight");
jQuery(p.popup).remove();
}
Popup.stack = Popup.stack.slice(0,from);
};