62 lines
1.8 KiB
JavaScript
62 lines
1.8 KiB
JavaScript
/*******************************************************************************
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* KindEditor - WYSIWYG HTML Editor for Internet
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* Copyright (C) 2006-2011 kindsoft.net
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*
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* @author Roddy <luolonghao@gmail.com>
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* @site http://www.kindsoft.net/
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* @licence http://www.kindsoft.net/license.php
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*******************************************************************************/
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KindEditor.plugin('autoheight', function(K) {
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var self = this;
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if (!self.autoHeightMode) {
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return;
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}
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var minHeight;
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function hideScroll() {
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var edit = self.edit;
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var body = edit.doc.body;
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edit.iframe[0].scroll = 'no';
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body.style.overflowY = 'hidden';
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}
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function resetHeight() {
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var edit = self.edit;
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var body = edit.doc.body;
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edit.iframe.height(minHeight);
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self.resize(null, Math.max(
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(K.IE ? body.scrollHeight : body.offsetHeight)
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+ 33, minHeight));
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}
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function init() {
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minHeight = K.removeUnit(self.height);
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self.edit.afterChange(resetHeight);
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hideScroll();
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var edit = self.edit;
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var body = edit.doc.body;
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edit.iframe.height(minHeight);
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self.resize(null, Math.max(
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((K.IE ? body.scrollHeight : body.offsetHeight) > 500 ? 500 : (K.IE ? body.scrollHeight : body.offsetHeight)) //限制初始化太高的情况
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+ 33, minHeight));
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}
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if (self.isCreated) {
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init();
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} else {
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self.afterCreate(init);
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}
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});
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/*
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* 如何实现真正的自动高度？
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* 修改编辑器高度之后，再次获取body内容高度时，最小值只会是当前iframe的设置高度，这样就导致高度只增不减。
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* 所以每次获取body内容高度之前，先将iframe的高度重置为最小高度，这样就能获取body的实际高度。
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* 由此就实现了真正的自动高度
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* 测试：chrome、firefox、IE9、IE8
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* */
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