在此页

• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

警告 : Removed in Firefox 65.

zoom() 方法在 HTMLIFrameElement interface changes the zoom factor of the browser <iframe> 's content. This is particularly useful for zooming in/out on non-touch-enabled devices.

句法

var instanceOfDOMRequest = instanceOfHTMLIframeElement.zoom(zoomFactor);
					

返回

Void.

参数

zoomFactor

A unitless number value representing the amount to zoom in or out. It acts like a percentage, so for example 1.1 would zoom in by 10%, whereas 0.9 would zoom out by 10%.

范例

var browser = document.querySelector('iframe');
var zoomFactor = 1;
zoomIn.addEventListener('touchend',function() {
  zoomFactor += 0.1;
  browser.zoom(zoomFactor);
});
zoomOut.addEventListener('touchend',function() {
  zoomFactor -= 0.1;
  browser.zoom(zoomFactor);
});
					

规范

Not part of any specification.

浏览器兼容性

Supported since Firefox 47, in chrome code only. Removed completely in Firefox 65.

Unlikely ever to be supported in other browsers.

另请参阅

• Using the Browser API

元数据

• 最后修改： Apr 30, 2019

相关话题

1. 方法

   1. HTMLIFrameElement.addNextPaintListener()
   2. HTMLIFrameElement.clearMatch()
   3. HTMLIFrameElement.download()
   4. HTMLIFrameElement.executeScript()
   5. HTMLIFrameElement.findAll()
   6. HTMLIFrameElement.findNext()
   7. HTMLIFrameElement.getActive()
   8. HTMLIFrameElement.getCanGoBack()
   9. HTMLIFrameElement.getCanGoForward()
   10. HTMLIFrameElement.getContentDimensions()
   11. HTMLIFrameElement.getMainfest()
   12. HTMLIFrameElement.getMuted()
   13. HTMLIFrameElement.getScreenshot()
   14. HTMLIFrameElement.getStructuredData()
   15. HTMLIFrameElement.goBack()
   16. HTMLIFrameElement.goForward()
   17. HTMLIFrameElement.getVisible()
   18. HTMLIFrameElement.getVolume()
   19. HTMLIFrameElement.mute()
   20. HTMLIFrameElement.purgeHistory()
   21. HTMLIFrameElement.reload()
   22. HTMLIFrameElement.removeNextPaintListener()
   23. HTMLIFrameElement.sendMouseEvent()
   24. HTMLIFrameElement.sendTouchEvent()
   25. HTMLIFrameElement.setActive()
   26. HTMLIFrameElement.setInputMethodActive()
   27. HTMLIFrameElement.setNFCFocus()
   28. HTMLIFrameElement.setVisible()
   29. HTMLIFrameElement.setVolume()
   30. HTMLIFrameElement.stop()
   31. HTMLIFrameElement.unmute()
   32. HTMLIFrameElement.zoom()
2. 事件

   1. mozbrowseractivitydone
   2. mozbrowserasyncscroll
   3. mozbrowseraudioplaybackchange
   4. mozbrowsercaretstatechanged
   5. mozbrowserclose
   6. mozbrowsercontextmenu
   7. mozbrowserdocumentfirstpaint
   8. mozbrowsererror
   9. mozbrowserfindchange
   10. mozbrowserfirstpaint
   11. mozbrowsericonchange
   12. mozbrowserloadend
   13. mozbrowserloadstart
   14. mozbrowserlocationchange
   15. mozbrowsermanifestchange
   16. mozbrowsermetachange
   17. mozbrowseropensearch
   18. mozbrowseropentab
   19. mozbrowseropenwindow
   20. mozbrowserresize
   21. mozbrowserscroll
   22. mozbrowserscrollareachanged
   23. mozbrowserscrollviewchange
   24. mozbrowsersecuritychange
   25. mozbrowserselectionstatechanged
   26. mozbrowsershowmodalprompt
   27. mozbrowsertitlechange
   28. mozbrowserusernameandpasswordrequired
   29. mozbrowservisibilitychange