非标
此特征是非标准的，且不在标准轨道中。不要在面向 Web 的生产站点中使用它：它不适用于每个用户。实现之间可能存在大的不兼容性，且行为将来可能改变。
MSCandidateWindowShow
fires immediately after the Input Method Editor (IME) candidate window is set to appear, but before it renders.
This proprietary method is specific to Internet Explorer.
Windows 8.1 and Windows 7 IMEs for certain languages on Internet Explorer for the desktop might not support this event. On Internet Explorer in the new Windows UI, this event is supported in Windows 8.1 IMEs of all languages.
| Event Property | object.oncandidatewindowshow = handler; |
|---|---|
| addEventListener Method | object.addEventListener("MSCandidateWindowShow", handler, useCapture) |
pEvtObj [in]
类型： IHTMLEventObj
Pointer to an
IHTMLEventObj
interface for the current event.
This event fires after the positioning information of the IME candidate window has been determined. You can obtain the positioning information using the getCandidateWindowClientRect method, and adjust your layout as needed to avoid any occlusions with the IME candidate window.
Web applications need only register for this event once per element (the handler will remain valid for the lifetime of the element).
in IE11, developers can detect the opening of the IME candidate window by listening to
MSCandidateWindowShow
event, then call
getCandidateWindowClientRect()
function to find out where the candidate window is and position the suggestion UI away from it:
var context = document.getElementById("mySearchBox").msGetInputContext();
context.addEventListener("MSCandidateWindowShow", candidateWindowShowHandler);
function candidateWindowShowHandler(e) {
var imeRect = context.getCandidateWindowClientRect();
var suggestionRect = document.getElementById("mySuggestionList").getBoundingClientRect();
// Check if the two rects intersect, and position them away from each other.
}
When the IME candidate window changes position or closes, it fires
MSCandidateWindowUpdate
or
MSCandidateWindowHide
events. Developers could listen to them and shift the suggestion UI accordingly.