/// <summary>
/// Handle mouse up to handle selection and link click.
/// </summary>
/// <param name="parent">the control hosting the html to invalidate</param>
/// <param name="e">the mouse event args</param>
public void HandleMouseUp(Control parent, MouseEventArgs e)
{
ArgChecker.AssertArgNotNull(parent, "parent");
ArgChecker.AssertArgNotNull(e, "e");
try
{
if (_selectionHandler != null && IsMouseInContainer(e.Location))
{
bool ignore = _selectionHandler.HandleMouseUp(parent, e.Button);
if (!ignore && (e.Button & MouseButtons.Left) != 0)
{
Point loc = OffsetByScroll(e.Location);
CssBox link = DomUtils.GetLinkBox(_root, loc);
if (link != null)
{
HandleLinkClicked(parent, e, link);
}
}
}
}
catch (HtmlLinkClickedException)
{
throw;
}
catch (Exception ex)
{
ReportError(HtmlRenderErrorType.KeyboardMouse, "Failed mouse up handle", ex);
}
}
/// <summary>
/// Handle mouse up to handle selection and link click.
/// </summary>
/// <param name="parent">the control hosting the html to invalidate</param>
/// <param name="location">the location of the mouse</param>
/// <param name="e">the mouse event data</param>
public void HandleMouseUp(RControl parent, RPoint location, RMouseEvent e)
{
ArgChecker.AssertArgNotNull(parent, "parent");
try
{
if (this._selectionHandler != null && this.IsMouseInContainer(location))
{
var ignore = this._selectionHandler.HandleMouseUp(parent, e.LeftButton);
if (!ignore && e.LeftButton)
{
var loc = this.OffsetByScroll(location);
var link = DomUtils.GetLinkBox(this._root, loc);
if (link != null)
{
this.HandleLinkClicked(parent, location, link);
}
}
}
}
catch (HtmlLinkClickedException)
{
throw;
}
catch (Exception ex)
{
this.ReportError(HtmlRenderErrorType.KeyboardMouse, "Failed mouse up handle", ex);
}
}
/// <summary>
/// Handle mouse up to handle selection and link click.
/// </summary>
/// <param name="parent">the control hosting the html to invalidate</param>
/// <param name="e">the mouse event args</param>
public void HandleMouseUp(Control parent, MouseEventArgs e)
{
ArgChecker.AssertArgNotNull(parent, "parent");
ArgChecker.AssertArgNotNull(e, "e");
if (_selectionHandler != null)
{
var inSelection = _selectionHandler.HandleMouseUp(parent, e.Button);
if (!inSelection && (e.Button & MouseButtons.Left) != 0)
{
var loc = OffsetByScroll(e.Location);
var link = DomUtils.GetLinkBox(_root, loc);
if (link != null)
{
if (LinkClicked != null)
{
var args = new HtmlLinkClickedEventArgs(link.GetAttribute("href"));
LinkClicked(this, args);
if (args.Handled)
{
return;
}
}
CssValueParser.GoLink(link.GetAttribute("href", string.Empty), Bridge);
}
}
}
}
/// <summary>
/// Handle mouse move to handle hover cursor and text selection.
/// </summary>
/// <param name="parent">the control hosting the html to set cursor and invalidate</param>
/// <param name="loc">the location of the mouse on the html</param>
public void HandleMouseMove(RControl parent, RPoint loc)
{
if (_root.HtmlContainer.IsSelectionEnabled && _mouseDownInControl && parent.LeftMouseButton)
{
if (_mouseDownOnSelectedWord)
{
// make sure not to start drag-drop on click but when it actually moves as it f***s mouse-up
if ((DateTime.Now - _lastMouseDown).TotalMilliseconds > 200)
{
StartDragDrop(parent);
}
}
else
{
HandleSelection(parent, loc, !_isDoubleClickSelect);
_inSelection = _selectionStart != null && _selectionEnd != null && (_selectionStart != _selectionEnd || _selectionStartIndex != _selectionEndIndex);
}
}
else
{
// Handle mouse hover over the html to change the cursor depending if hovering word, link of other.
var link = DomUtils.GetLinkBox(_root, loc);
if (link != null)
{
_cursorChanged = true;
parent.SetCursorHand();
if (link != _lastLink)
{
_root.HtmlContainer.HandleLinkHover(parent, loc, link);
_lastLink = link;
}
}
else if (_root.HtmlContainer.IsSelectionEnabled)
{
var word = DomUtils.GetCssBoxWord(_root, loc);
_cursorChanged = word != null && !word.IsImage && !(word.Selected && (word.SelectedStartIndex < 0 || word.Left + word.SelectedStartOffset <= loc.X) && (word.SelectedEndOffset < 0 || word.Left + word.SelectedEndOffset >= loc.X));
if (_cursorChanged)
{
parent.SetCursorIBeam();
}
else
{
parent.SetCursorDefault();
}
_lastLink = null;
}
else if (_cursorChanged)
{
parent.SetCursorDefault();
_lastLink = null;
}
}
}
/// <summary>
/// Handle mouse down to handle selection.
/// </summary>
/// <param name="parent">the control hosting the html to invalidate</param>
/// <param name="loc">the location of the mouse on the html</param>
/// <param name="isMouseInContainer"> </param>
public void HandleMouseDown(RControl parent, RPoint loc, bool isMouseInContainer)
{
bool clear = !isMouseInContainer;
if (isMouseInContainer)
{
_mouseDownInControl = true;
_isDoubleClickSelect = (DateTime.Now - _lastMouseDown).TotalMilliseconds < 400;
_lastMouseDown = DateTime.Now;
_mouseDownOnSelectedWord = false;
if (_root.HtmlContainer.IsSelectionEnabled && parent.LeftMouseButton)
{
var word = DomUtils.GetCssBoxWord(_root, loc);
if (word != null && word.Selected)
{
_mouseDownOnSelectedWord = true;
}
else
{
clear = true;
}
}
else if (parent.RightMouseButton)
{
var rect = DomUtils.GetCssBoxWord(_root, loc);
var link = DomUtils.GetLinkBox(_root, loc);
if (_root.HtmlContainer.IsContextMenuEnabled)
{
_contextMenuHandler.ShowContextMenu(parent, rect, link);
}
clear = rect == null || !rect.Selected;
}
}
if (clear)
{
ClearSelection();
parent.Invalidate();
}
}
/// <summary>
/// Get css link href at the given x,y location.
/// </summary>
/// <param name="location">the location to find the link at</param>
/// <returns>css link href if exists or null</returns>
public string GetLinkAt(RPoint location)
{
var link = DomUtils.GetLinkBox(this._root, this.OffsetByScroll(location));
return(link != null ? link.HrefLink : null);
}
/// <summary>
/// Get css link href at the given x,y location.
/// </summary>
/// <param name="location">the location to find the link at</param>
/// <returns>css link href if exists or null</returns>
public string GetLinkAt(Point location)
{
CssBox link = DomUtils.GetLinkBox(_root, OffsetByScroll(location));
return(link != null ? link.HrefLink : null);
}