private void on_ime_composition_range_changed(cef_render_handler_t *self, cef_browser_t *browser, cef_range_t *selected_range, UIntPtr character_boundsCount, cef_rect_t *character_bounds)
{
CheckSelf(self);
// TODO: reuse array/special list for rectange - this method called only from one thread and can be reused
var m_browser = CefBrowser.FromNative(browser);
var m_selectedRange = new CefRange(selected_range->from, selected_range->to);
CefRectangle[] m_characterBounds;
if (character_boundsCount == UIntPtr.Zero)
{
m_characterBounds = s_emptyRectangleArray;
}
else
{
var m_characterBoundsCount = checked ((int)character_boundsCount);
m_characterBounds = new CefRectangle[m_characterBoundsCount];
for (var i = 0; i < m_characterBoundsCount; i++)
{
m_characterBounds[i] = new CefRectangle(
character_bounds[i].x,
character_bounds[i].y,
character_bounds[i].width,
character_bounds[i].height
);
}
}
OnImeCompositionRangeChanged(m_browser, m_selectedRange, m_characterBounds);
}
/// <summary>
/// Retrieve the page ranges.
/// </summary>
public CefRange[] GetPageRanges()
{
var count = GetPageRangesCount();
if (count == 0)
{
return(new CefRange[0]);
}
var n_ranges = new cef_range_t[count];
UIntPtr n_count = (UIntPtr)count;
fixed(cef_range_t *n_ranges_ptr = n_ranges)
{
cef_print_settings_t.get_page_ranges(_self, &n_count, n_ranges_ptr);
}
count = (int)n_count;
if (count == 0)
{
return(new CefRange[0]);
}
var ranges = new CefRange[count];
for (var i = 0; i < count; i++)
{
ranges[i].From = n_ranges[i].from;
ranges[i].To = n_ranges[i].to;
}
return(ranges);
}
private void on_text_selection_changed(cef_render_handler_t *self, cef_browser_t *browser, cef_string_t *selected_text, cef_range_t *selected_range)
{
CheckSelf(self);
var m_browser = CefBrowser.FromNative(browser);
var m_selected_text = cef_string_t.ToString(selected_text);
var m_selected_range = new CefRange(selected_range->from, selected_range->to);
OnTextSelectionChanged(m_browser, m_selected_text, m_selected_range);
}
/// <summary>
/// Called when text selection has changed for the specified |browser|.
/// |selected_text| is the currently selected text and |selected_range| is
/// the character range.
/// </summary>
protected virtual void OnTextSelectionChanged(CefBrowser browser, string selectedText, CefRange selectedRange)
{
}
/// <summary> /// Called when the IME composition range has changed. |selected_range| is the /// range of characters that have been selected. |character_bounds| is the /// bounds of each character in view coordinates. /// </summary> protected abstract void OnImeCompositionRangeChanged(CefBrowser browser, CefRange selectedRange, CefRectangle[] characterBounds);