/// <summary>
/// Helper function to build up the list of text nodes containing the desired text
/// </summary>
private void verifyLabelElements(IHTMLDocument2 document)
{
if (labelElements == null)
{
labelElements = new ArrayList();
IHTMLBodyElement bodyElement = document.body as IHTMLBodyElement;
if (bodyElement == null)
{
return;
}
IHTMLTxtRange textRange = bodyElement.createTextRange();
if (textRange == null)
{
return;
}
// Use the findText feature to search for text in the body
// Add all matching ranges to the collection
// See http://msdn2.microsoft.com/en-us/library/aa741525.aspx for details on the flags
// Note that this is not multi-lingual
while (textRange.findText(labelText, 0, 0))
{
labelElements.Add(textRange.duplicate());
// Move the pointer to just past the current range and search the balance of the doc
textRange.moveStart("Character", textRange.htmlText.Length);
// Not sure why, but MS find dialog uses this to get the range to the end
textRange.moveEnd("Textedit", 1);
}
}
}
/// <summary>
/// Search the document from the current selection, and reset the
/// the selection to the text found, if successful.
/// </summary>
/// <param name="text">the text for which to search</param>
/// <param name="forward">true for forward search, false for backward</param>
/// <param name="matchWholeWord">true to match whole word, false otherwise</param>
/// <param name="matchCase">true to match case, false otherwise</param>
/// <returns></returns>
public bool Search(string text, bool forward, bool matchWholeWord, bool matchCase)
{
bool success = false;
if (webBrowser1.Document != null)
{
IHTMLDocument2 doc =
webBrowser1.Document.DomDocument as IHTMLDocument2;
IHTMLBodyElement body = doc.body as IHTMLBodyElement;
if (body != null)
{
IHTMLTxtRange range;
if (doc.selection != null)
{
range = doc.selection.createRange() as IHTMLTxtRange;
IHTMLTxtRange dup = range.duplicate();
dup.collapse(true);
// if selection is degenerate, then search whole body
if (range.isEqual(dup))
{
range = body.createTextRange();
}
else
{
if (forward)
{
range.moveStart("character", 1);
}
else
{
range.moveEnd("character", -1);
}
}
}
else
{
range = body.createTextRange();
}
int flags = 0;
if (matchWholeWord)
{
flags += 2;
}
if (matchCase)
{
flags += 4;
}
success =
range.findText(text, forward ? 999999 : -999999, flags);
if (success)
{
range.select();
range.scrollIntoView(!forward);
}
}
}
return(success);
}
public void FindText(String sText)
{
#if !__MonoCS__
IHTMLDocument2 doc = (IHTMLDocument2)axWebBrowser1.Document;
IHTMLBodyElement bod = (IHTMLBodyElement)doc.body;
IHTMLTxtRange txt = bod.createTextRange();
txt.findText(sText, 0x7fffffff, 0);
#endif
}
private void DisableScrollbars(IHTMLDocument2 document2)
{
try {
setAttribute("scroll", "no");
IHTMLBodyElement body = (IHTMLBodyElement)document2.body;
body.scroll = "no";
document2.body.style.borderStyle = "none";
} catch (Exception ex) {
LOG.Warn("Can't disable scroll", ex);
}
}
private void _browserControl_DocumentComplete(object sender, BrowserDocumentEventArgs e)
{
Timer timer = null;
try
{
// unsubscribe from the event
_browserControl.DocumentComplete -= new BrowserDocumentEventHandler(_browserControl_DocumentComplete);
// get the document
IHTMLDocument2 document = _browserControl.Document as IHTMLDocument2;
// eliminate borders, scroll bars, and margins
IHTMLElement element = document.body;
element.style.borderStyle = "none";
IHTMLBodyElement body = element as IHTMLBodyElement;
body.scroll = "no";
body.leftMargin = 0;
body.rightMargin = 0;
body.topMargin = 0;
body.bottomMargin = 0;
// set the width and height of the browser control to the correct
// values for the snapshot
// width specified by the caller
_browserControl.Width = _htmlScreenCaptureCore.ContentWidth;
if (_htmlScreenCaptureCore.MaximumHeight > 0)
{
_browserControl.Height = _htmlScreenCaptureCore.MaximumHeight;
}
else
{
// height of the content calculated based on this width
IHTMLElement2 element2 = element as IHTMLElement2;
_browserControl.Height = element2.scrollHeight;
}
// release UI thread to load the video thumbnail on screen
// (the Tick may need to fire more than once to allow enough
// time and message processing for an embedded object to
// be fully initialized)
timer = new Timer();
timer.Interval = WAIT_INTERVAL;
timer.Tick += new EventHandler(timer_Tick);
timer.Start();
}
catch (Exception ex)
{
_htmlScreenCaptureCore.SetException(ex);
CleanupAndExit(timer);
}
}
private void Browser_LoadCompleted(NavigationEventArgs e)
{
IHTMLDocument2 doc = (IHTMLDocument2)Browser.Document;
IHTMLBodyElement body = (IHTMLBodyElement)doc.body;
doc.charset = "utf-8";
((IHTMLElement3)body).contentEditable = "true";
_body = (HTMLBody)doc.body;
dynamic d = doc;
d.attachEvent("onkeyup", _listener);
d.attachEvent("onblur", _listener);
d.attachEvent("onchange", _listener);
d.attachEvent("oninput", _listener);
d.attachEvent("onpaste", _listener);
d.attachEvent("oncut", _listener);
}
private void searchWord(string keyword, int findIndex, bool fromBeging = false)
{
IHTMLTxtRange searchRange = null;
IHTMLDocument2 document = (IHTMLDocument2)wb.Document.DomDocument;
if (keyword == "")
{
return;
}
if (fromBeging)
{
IHTMLBodyElement body = (IHTMLBodyElement)document.body;
searchRange = (IHTMLTxtRange)body.createTextRange();
}
else if (document.selection.type.ToLower() != "none")
{
searchRange = (IHTMLTxtRange)document.selection.createRange();
if (findIndex > 0)
{
searchRange.moveStart("character", 1);
searchRange.collapse(true);
}
else
{
searchRange.moveStart("character", -1);
searchRange.moveEnd("character", -100000);
searchRange.collapse(true);
}
}
else
{
IHTMLBodyElement body = (IHTMLBodyElement)document.body;
searchRange = (IHTMLTxtRange)body.createTextRange();
}
Trace.WriteLine(searchRange.text);
if (searchRange.findText(keyword, findIndex, 0))// 如果找到了，就选取（高亮显示）该关键字；否则弹出消息。
{
searchRange.select();
}
else
{
MessageBox.Show("已搜索到文档结尾。");
}
}
private bool FindString(HtmlElement elem, string str)
{
bool strFound = false;
IHTMLTxtRange rng = null;
try
{
if (rng != null)
{
rng.collapse(false);
strFound = rng.findText(str, 1000000000, 0);
if (strFound)
{
rng.select();
rng.scrollIntoView(true);
}
}
if (rng == null)
{
IHTMLDocument2 doc =
elem.Document.DomDocument as IHTMLDocument2;
IHTMLBodyElement body = doc.body as IHTMLBodyElement;
rng = body.createTextRange();
rng.moveToElementText(elem.DomElement as IHTMLElement);
strFound = rng.findText(str, 1000000000, 0);
if (strFound)
{
rng.select();
rng.scrollIntoView(true);
}
}
}
catch
{
}
return(strFound);
}
private int HighlightKeyword()
{
int matches = -1;
if (!string.IsNullOrEmpty(messageProvider.Keyword))
{
const string strbg = "BackColor";
const string strf = "ForeColor";
const string sword = "Character";
const string stextedit = "Textedit";
//You may be tempted to use Color.Yellow.ToArgb(). But,
//the value returned includes the A value which
//causes confusion for MSHTML. i.e. Color.Cyan is interpreted as yellow
int background = MakeRGB(Color.FromName("Yellow"));
//int foreground = MakeRGB(Color.FromName("Yellow"));
IHTMLDocument2 document = webBrowser.Document.DomDocument as IHTMLDocument2;
if (document != null)
{
IHTMLElement pElem = document.body;
IHTMLBodyElement pBodyelem = pElem as IHTMLBodyElement;
if (pBodyelem == null)
{
return(matches);
}
IHTMLTxtRange range = pBodyelem.createTextRange();
if (range == null)
{
return(matches);
}
//IHTMLSelectionObject currentSelection = document.selection;
//IHTMLTxtRange range = currentSelection.createRange() as IHTMLTxtRange;
IHTMLTxtRange firstRange = null;
while (range.findText(messageProvider.Keyword, messageProvider.Keyword.Length, 0))
{
if (matches == -1)
{
matches = 0;
firstRange = range.duplicate();
}
if (background != 0)
{
range.execCommand(strbg, false, background);
}
//if (foreground != 0)
//range.execCommand(strf, false, foreground);
range.moveStart(sword, 1);
range.moveEnd(stextedit, 1);
matches += 1;
}
if (firstRange != null)
{
firstRange.scrollIntoView(true);
}
}
}
return(matches);
}
