ブラウザの位置を取得するために作成したこの素敵な小さなスニペットがあります。
if (!window.position) {
window.position = function() {
return navigator.appName.toLowerCase().indexOf("explorer") >= 0 ? { x: window.screenLeft, y: window.screenTop } : { x: window.screenX, y: window.screenY };
};
};
関数を永続的にアタッチできるように「_prototype」のようなものがあれば、誰でも知っています (存在するかどうかを見つけたり覚えていないようです)。これは、次のような場合に役立ちます。
var bob = window.open(...);
だから私は言うことができます:
var bobSposisition = bob.position(); // and of course get the same thing on bob that i'm getting on my current parent window.
回答後に更新[楽しいスニペットを追加!]
この質問は古いもので、少し思いもよらなかったものですが、役に立てば、次のスニペットにも興味があるかもしれません!
;;(function() {
"use strict";
/** window.position
* Add `position` method to windows object that allows for detection of the current browser window position.
*
* @returns Object Object of x and y points of current position. Also updates window.position properties, as neccesary.
*
* @property INT window.position.originX Original X point upon page load. Never updates, unless page is reloaded.
* @property INT window.position.originY Original Y point upon page load. Never updates, unless page is reloaded.
* @property INT window.position.lastX Last X Point at time of last call to window.position() method. Only updates if current position has changed since last call.
* @property INT window.position.lastY Last Y Point at time of last call to window.position() method. Only updates if current position has changed since last call.
* @property INT window.position.x Current X Point at time of last call to window.position() method. Updates everytime window.position() method is called.
* @property INT window.position.y Current Y Point at time of last call to window.position() method. Updates everytime window.position() method is called.
*/
window['position'] = function() { var position = function() { var a = 0 <= navigator.appName.toLowerCase().indexOf("explorer") ? { x: window.screenLeft, y: window.screenTop } : { x: window.screenX, y: window.screenY }; void 0 == window.position && (window.position = {}); void 0 == window.position.history && (window.position.history = []); if (void 0 == window.position.lastX || a.x != window.position.x) window.position.lastX = window.position.x; if (void 0 == window.position.lastY || a.y != window.position.y) window.position.lastY = window.position.y; window.position.x = a.x; window.position.y = a.y; window.position.history.push({ x: a.x, y: a.y, last: { x: window.position.lastX, y: window.position.lastY } }); return a; }, pos = position(); position.originX = position.x = pos.x; position.originY = position.y = pos.y; position.history = [{ x: pos.x, y: pos.y, last: { x: pos.x, y: pos.y } }]; return position; }();
})();
/* To Add To jQuery, simply insert the following after above code and after jQuery is added to page */
if (jQuery) {
(function($) {
/** jQuery(window).position()
*
* @description As is, jQuery's `.position` method errors out when applied to '$(window)'.
* The following extends the `.position` method to account for `window` if `window.position` exist.
*
* @example $(window).position();
* Will output an Object like:
* { x: 2643, y: 0, top: 0, left: 2643, lastX: 1920, lastY: 0, originX: 1920, originY: 0 }
*/
if (window.position && $.fn.position) {
$.fn.originalPosition = $.fn.position;
$.fn.position = function() {
return this && "object" == typeof this && this[0] == window ? $.extend(!0, window.position(), {
top: window.position.y,
left: window.position.x,
lastX: window.position.lastX,
lastY: window.position.lastY,
originX: window.position.originX,
originY: window.position.originY
}) : $.fn.originalPosition.apply(this, arguments)
}
}
})(jQuery);
}