How to drag page 1/2 using javascript

Source: Internet
Author: User

Translated from:Http://www.webreference.com/programming/javascript/mk/column2/index.html
All Copyrights belong to the original

Javascript is characterized by dom processing and web page effects. In most cases, we only use the simplest functions of this language, such as making image carousel/Webpage tabs, this article will show you how to drag and drop your webpage.

There are many reasons to add the drag-and-drop function to your website. The simplest one is data restructuring. for example, if you have a sequence of content for user sorting, You need to input each entry or select it using select. Instead of dragging the preceding method. maybe your website also needs a navigation window that users can drag! These effects are simple: you can easily implement them!

Dragging on a webpage is not very complicated. First, you need to know the mouse coordinates. Second, you need to know that the user clicks a webpage element and implements dragging. Finally, we need to move this element.


<STYLE type = text/css> LI {MARGIN-BOTTOM: 10px} OL {MARGIN-TOP: 5px }. dragContainer {BORDER-RIGHT: #669999 2px solid; PADDING-RIGHT: 5px; BORDER-TOP: #669999 2px solid; PADDING-LEFT: 5px; FLOAT: left; PADDING-BOTTOM: 0px; MARGIN: 3px; BORDER-LEFT: #669999 2px solid; WIDTH: 100px; PADDING-TOP: 5px; BORDER-BOTTOM: #669999 2px solid }. overDragContainer {BORDER-RIGHT: #669999 2px solid; PADDING-RIGHT: 5px; BORDER-TOP: #669999 2px solid; PADDING-LEFT: 5px; FLOAT: left; PADDING-BOTTOM: 0px; MARGIN: 3px; BORDER-LEFT: #669999 2px solid; WIDTH: 100px; PADDING-TOP: 5px; BORDER-BOTTOM: #669999 2px solid }. overDragContainer {BACKGROUND-COLOR: # eee }. dragBox {BORDER-RIGHT: #000 1px solid; PADDING-RIGHT: 2px; BORDER-TOP: #000 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 10px; MARGIN-BOTTOM: 5px; PADDING-BOTTOM: 2px; BORDER-LEFT: #000 1px solid; WIDTH: 94px; CURSOR: pointer; PADDING-TOP: 2px; BORDER-BOTTOM: #000 1px solid; FONT-FAMILY: verdana, tahoma, arial; BACKGROUND-COLOR: # eee }. overDragBox {BORDER-RIGHT: #000 1px solid; PADDING-RIGHT: 2px; BORDER-TOP: #000 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 10px; MARGIN-BOTTOM: 5px; PADDING-BOTTOM: 2px; BORDER-LEFT: #000 1px solid; WIDTH: 94px; CURSOR: pointer; PADDING-TOP: 2px; BORDER-BOTTOM: #000 1px solid; FONT-FAMILY: verdana, tahoma, arial; BACKGROUND-COLOR: # eee }. dragDragBox {BORDER-RIGHT: #000 1px solid; PADDING-RIGHT: 2px; BORDER-TOP: #000 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 10px; MARGIN-BOTTOM: 5px; PADDING-BOTTOM: 2px; BORDER-LEFT: #000 1px solid; WIDTH: 94px; CURSOR: pointer; PADDING-TOP: 2px; BORDER-BOTTOM: #000 1px solid; FONT-FAMILY: verdana, tahoma, arial; BACKGROUND-COLOR: # eee }. miniDragBox {BORDER-RIGHT: #000 1px solid; PADDING-RIGHT: 2px; BORDER-TOP: #000 1px solid; PADDING-LEFT: 2px; FONT-SIZE: 10px; MARGIN-BOTTOM: 5px; PADDING-BOTTOM: 2px; BORDER-LEFT: #000 1px solid; WIDTH: 94px; CURSOR: pointer; PADDING-TOP: 2px; BORDER-BOTTOM: #000 1px solid; FONT-FAMILY: verdana, tahoma, arial; BACKGROUND-COLOR: # eee }. overDragBox {BACKGROUND-COLOR: # ffff99 }. dragDragBox {BACKGROUND-COLOR: # ffff99 }. dragDragBox {FILTER: alpha (opacity = 50); BACKGROUND-COLOR: # ff99cc} LEGEND {FONT-WEIGHT: bold; FONT-SIZE: 12px; COLOR: #666699; FONT-FAMILY: verdana, tahoma, arial} FIELDSET {PADDING-RIGHT: 3px; PADDING-LEFT: 3px; PADDING-BOTTOM: 3px; PADDING-TOP: 3px }. history {FONT-SIZE: 10px; OVERFLOW: auto; WIDTH: 100%; FONT-FAMILY: verdana, tahoma, arial; HEIGHT: 82px} # DragContainer8 {BORDER-RIGHT: #669999 1px solid; PADDING-RIGHT: 0px; BORDER-TOP: #669999 1px solid; PADDING-LEFT: 5px; PADDING-BOTTOM: 0px; BORDER-LEFT: #669999 1px solid; WIDTH: 110px; PADDING-TOP: 5px; BORDER-BOTTOM: #669999 1px solid; HEIGHT: 110px }. miniDragBox {FLOAT: left; MARGIN: 0px 5px 5px 0px; WIDTH: 20px; HEIGHT: 20px} PRE {BORDER-RIGHT: # ccc 1px solid; PADDING-RIGHT: 10px; BORDER-TOP: # ccc 1px solid; PADDING-LEFT: 10px; PADDING-BOTTOM: 10px; BORDER-LEFT: # ccc 1px solid; PADDING-TOP: 10px; BORDER-BOTTOM: # ccc 1px solid; BACKGROUND-COLOR: # f8f8f0 }</STYLE> <body> <FIELDSET id = Demo4> <LEGEND> example-drag a page element </LEGEND> Item #1 Item #2 Item #3 Item #4 Item #5 Item #6 Item #7 Item #8 Item #9 Item #10 Item #11 Item #12 </FIELDSET> </body> </ptml>
[Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]

Get mouse movement information

First, we need to get the coordinates of the mouse. we can add a User Function to document. onmousemove:

Copy codeThe Code is as follows: document. onmousemove = mouseMove;

Function mouseMove (ev ){
Ev = ev | window. event;
Var mousePos = mouseCoords (ev );
}

Function mouseCoords (ev ){
If (ev. pageX | ev. pageY ){
Return {x: ev. pageX, y: ev. pageY };
}
Return {
X: ev. clientX + document. body. scrollLeft-document. body. clientLeft,
Y: ev. clientY + document. body. scrollTop-document. body. clientTop
};
}
Mouse X Position: <input id = xxx type = text> Mouse Y Position: <input id = yyy type = text> </body> </ptml>
[Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]

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