Is there a way to disable the zoom feature on input fields in webview?

Question

When a user clicks in an input field or textarea, the application zooms in. Is there a simple way to disable it?

Currently have the meta tag:

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Answer 1

In WebViewClassic.java, displaySoftKeyboard zooms in and pans if the actual scale is less than the default scale. There is a field in the WebWiew.class mDefaultScale float the source code shows that when you display softkeyboard the mActualScale will change.

So making sure that mActualScale is >= mDefaultScale should prevent the panning and rescaling. (Below is source code for WebView.java from the grepcode site -- which is no longer running.)

private void  displaySoftKeyboard(boolean isTextView) {
     InputMethodManager imm = (InputMethodManager)
     getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
        if (isTextView) {
            if (mWebTextView == null) return;
            imm.showSoftInput(mWebTextView, 0);

            if (mActualScale < mDefaultScale) {

                // bring it back to the default scale so that user can enter

                // text.
                mInZoomOverview = false;
                mZoomCenterX = mLastTouchX;
                mZoomCenterY = mLastTouchY;
                // do not change text wrap scale so that there is no reflow
                setNewZoomScale(mDefaultScale, false, false);
                adjustTextView(false);
            }
        }

        else { // used by plugins
            imm.showSoftInput(this, 0);
        }

    }

Code from googleSource--WebViewClassic.java in frameworks/base/core/java/android/webkit/WebViewClassic.java (for JellyBean api 17) shows similar functionality:

/**
 * Called in response to a message from webkit telling us that the soft
 * keyboard should be launched.
 */
private void displaySoftKeyboard(boolean isTextView) {
    InputMethodManager imm = (InputMethodManager)
            mContext.getSystemService(Context.INPUT_METHOD_SERVICE);
    // bring it back to the default level scale so that user can enter text
    boolean zoom = mZoomManager.getScale() < mZoomManager.getDefaultScale();
    if (zoom) {
        mZoomManager.setZoomCenter(mLastTouchX, mLastTouchY);
        mZoomManager.setZoomScale(mZoomManager.getDefaultScale(), false);
    }
    // Used by plugins and contentEditable.
    // Also used if the navigation cache is out of date, and
    // does not recognize that a textfield is in focus.  In that
    // case, use WebView as the targeted view.
    // see http://b/issue?id=2457459
    imm.showSoftInput(mWebView, 0);
}