+++ /dev/null
-define("dojo/window", ["./_base/lang", "./sniff", "./_base/window", "./dom", "./dom-geometry", "./dom-style"],
- function(lang, has, baseWindow, dom, geom, style){
-
- // module:
- // dojo/window
-
- var window = {
- // summary:
- // TODOC
-
- getBox: function(/*Document?*/ doc){
- // summary:
- // Returns the dimensions and scroll position of the viewable area of a browser window
-
- doc = doc || baseWindow.doc;
-
- var
- scrollRoot = (doc.compatMode == 'BackCompat') ? baseWindow.body(doc) : doc.documentElement,
- // get scroll position
- scroll = geom.docScroll(doc), // scrollRoot.scrollTop/Left should work
- w, h;
-
- if(has("touch")){ // if(scrollbars not supported)
- var uiWindow = window.get(doc); // use UI window, not dojo.global window
- // on mobile, scrollRoot.clientHeight <= uiWindow.innerHeight <= scrollRoot.offsetHeight, return uiWindow.innerHeight
- w = uiWindow.innerWidth || scrollRoot.clientWidth; // || scrollRoot.clientXXX probably never evaluated
- h = uiWindow.innerHeight || scrollRoot.clientHeight;
- }else{
- // on desktops, scrollRoot.clientHeight <= scrollRoot.offsetHeight <= uiWindow.innerHeight, return scrollRoot.clientHeight
- // uiWindow.innerWidth/Height includes the scrollbar and cannot be used
- w = scrollRoot.clientWidth;
- h = scrollRoot.clientHeight;
- }
- return {
- l: scroll.x,
- t: scroll.y,
- w: w,
- h: h
- };
- },
-
- get: function(/*Document*/ doc){
- // summary:
- // Get window object associated with document doc.
- // doc:
- // The document to get the associated window for.
-
- // In some IE versions (at least 6.0), document.parentWindow does not return a
- // reference to the real window object (maybe a copy), so we must fix it as well
- // We use IE specific execScript to attach the real window reference to
- // document._parentWindow for later use
- if(has("ie") && window !== document.parentWindow){
- /*
- In IE 6, only the variable "window" can be used to connect events (others
- may be only copies).
- */
- doc.parentWindow.execScript("document._parentWindow = window;", "Javascript");
- //to prevent memory leak, unset it after use
- //another possibility is to add an onUnload handler which seems overkill to me (liucougar)
- var win = doc._parentWindow;
- doc._parentWindow = null;
- return win; // Window
- }
-
- return doc.parentWindow || doc.defaultView; // Window
- },
-
- scrollIntoView: function(/*DomNode*/ node, /*Object?*/ pos){
- // summary:
- // Scroll the passed node into view, if it is not already.
-
- // don't rely on node.scrollIntoView working just because the function is there
-
- try{ // catch unexpected/unrecreatable errors (#7808) since we can recover using a semi-acceptable native method
- node = dom.byId(node);
- var doc = node.ownerDocument || baseWindow.doc, // TODO: why baseWindow.doc? Isn't node.ownerDocument always defined?
- body = baseWindow.body(doc),
- html = doc.documentElement || body.parentNode,
- isIE = has("ie"), isWK = has("webkit");
- // if an untested browser, then use the native method
- if((!(has("mozilla") || isIE || isWK || has("opera")) || node == body || node == html) && (typeof node.scrollIntoView != "undefined")){
- node.scrollIntoView(false); // short-circuit to native if possible
- return;
- }
- var backCompat = doc.compatMode == 'BackCompat',
- clientAreaRoot = (isIE >= 9 && "frameElement" in node.ownerDocument.parentWindow)
- ? ((html.clientHeight > 0 && html.clientWidth > 0 && (body.clientHeight == 0 || body.clientWidth == 0 || body.clientHeight > html.clientHeight || body.clientWidth > html.clientWidth)) ? html : body)
- : (backCompat ? body : html),
- scrollRoot = isWK ? body : clientAreaRoot,
- rootWidth = clientAreaRoot.clientWidth,
- rootHeight = clientAreaRoot.clientHeight,
- rtl = !geom.isBodyLtr(doc),
- nodePos = pos || geom.position(node),
- el = node.parentNode,
- isFixed = function(el){
- return ((isIE <= 6 || (isIE && backCompat))? false : (style.get(el, 'position').toLowerCase() == "fixed"));
- };
- if(isFixed(node)){ return; } // nothing to do
-
- while(el){
- if(el == body){ el = scrollRoot; }
- var elPos = geom.position(el),
- fixedPos = isFixed(el);
-
- if(el == scrollRoot){
- elPos.w = rootWidth; elPos.h = rootHeight;
- if(scrollRoot == html && isIE && rtl){ elPos.x += scrollRoot.offsetWidth-elPos.w; } // IE workaround where scrollbar causes negative x
- if(elPos.x < 0 || !isIE){ elPos.x = 0; } // IE can have values > 0
- if(elPos.y < 0 || !isIE){ elPos.y = 0; }
- }else{
- var pb = geom.getPadBorderExtents(el);
- elPos.w -= pb.w; elPos.h -= pb.h; elPos.x += pb.l; elPos.y += pb.t;
- var clientSize = el.clientWidth,
- scrollBarSize = elPos.w - clientSize;
- if(clientSize > 0 && scrollBarSize > 0){
- elPos.w = clientSize;
- elPos.x += (rtl && (isIE || el.clientLeft > pb.l/*Chrome*/)) ? scrollBarSize : 0;
- }
- clientSize = el.clientHeight;
- scrollBarSize = elPos.h - clientSize;
- if(clientSize > 0 && scrollBarSize > 0){
- elPos.h = clientSize;
- }
- }
- if(fixedPos){ // bounded by viewport, not parents
- if(elPos.y < 0){
- elPos.h += elPos.y; elPos.y = 0;
- }
- if(elPos.x < 0){
- elPos.w += elPos.x; elPos.x = 0;
- }
- if(elPos.y + elPos.h > rootHeight){
- elPos.h = rootHeight - elPos.y;
- }
- if(elPos.x + elPos.w > rootWidth){
- elPos.w = rootWidth - elPos.x;
- }
- }
- // calculate overflow in all 4 directions
- var l = nodePos.x - elPos.x, // beyond left: < 0
- t = nodePos.y - Math.max(elPos.y, 0), // beyond top: < 0
- r = l + nodePos.w - elPos.w, // beyond right: > 0
- bot = t + nodePos.h - elPos.h; // beyond bottom: > 0
- if(r * l > 0){
- var s = Math[l < 0? "max" : "min"](l, r);
- if(rtl && ((isIE == 8 && !backCompat) || isIE >= 9)){ s = -s; }
- nodePos.x += el.scrollLeft;
- el.scrollLeft += s;
- nodePos.x -= el.scrollLeft;
- }
- if(bot * t > 0){
- nodePos.y += el.scrollTop;
- el.scrollTop += Math[t < 0? "max" : "min"](t, bot);
- nodePos.y -= el.scrollTop;
- }
- el = (el != scrollRoot) && !fixedPos && el.parentNode;
- }
- }catch(error){
- console.error('scrollIntoView: ' + error);
- node.scrollIntoView(false);
- }
- }
- };
-
- 1 && lang.setObject("dojo.window", window);
-
- return window;
-});
git.wh0rd.org / tt-rss.git / blobdiff