mirror of
https://github.com/greenshot/greenshot.git
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287 lines
7.9 KiB
C#
287 lines
7.9 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2016 Thomas Braun, Jens Klingen, Robin Krom
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*
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* For more information see: http://getgreenshot.org/
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* The Greenshot project is hosted on GitHub https://github.com/greenshot/greenshot
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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using Accessibility;
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using log4net;
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namespace GreenshotPlugin.Core {
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/// <summary>
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/// See: http://social.msdn.microsoft.com/Forums/en-US/ieextensiondevelopment/thread/03a8c835-e9e4-405b-8345-6c3d36bc8941
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/// This should really be cleaned up, there is little OO behind this class!
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/// Maybe move the basic Accessible functions to WindowDetails!?
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/// </summary>
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public class Accessible {
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private static readonly ILog Log = LogManager.GetLogger(typeof(Accessible));
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#region Interop
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private static int AccessibleObjectFromWindow(IntPtr hWnd, OBJID idObject, ref IAccessible acc) {
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var guid = new Guid("{618736e0-3c3d-11cf-810c-00aa00389b71}"); // IAccessible
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object obj = null;
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int num = AccessibleObjectFromWindow(hWnd, (uint)idObject, ref guid, ref obj);
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acc = (IAccessible)obj;
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return num;
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}
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[DllImport("oleacc.dll")]
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private static extern int AccessibleObjectFromWindow(IntPtr hwnd, uint id, ref Guid iid, [In, Out, MarshalAs(UnmanagedType.IUnknown)] ref object ppvObject);
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[DllImport("oleacc.dll")]
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private static extern int AccessibleChildren(IAccessible paccContainer, int iChildStart, int cChildren, [In, Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)] object[] rgvarChildren, out int pcObtained);
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[DllImport("oleacc.dll", PreserveSig=false)]
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[return: MarshalAs(UnmanagedType.Interface)]
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public static extern object ObjectFromLresult(UIntPtr lResult, [MarshalAs(UnmanagedType.LPStruct)] Guid refiid, IntPtr wParam);
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#endregion
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private enum OBJID : uint {
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OBJID_WINDOW = 0x00000000,
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}
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private const int IE_ACTIVE_TAB = 2097154;
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private const int CHILDID_SELF = 0;
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private readonly IAccessible accessible;
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private Accessible[] Children {
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get {
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int num;
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object[] res = GetAccessibleChildren(accessible, out num);
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if (res == null) {
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return new Accessible[0];
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}
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List<Accessible> list = new List<Accessible>(res.Length);
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foreach (object obj in res) {
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IAccessible acc = obj as IAccessible;
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if (acc != null) {
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list.Add(new Accessible(acc));
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}
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}
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return list.ToArray();
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}
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}
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private string Name {
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get {
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return accessible.get_accName(CHILDID_SELF);
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}
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}
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private int ChildCount {
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get {
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return accessible.accChildCount;
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}
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}
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public Accessible(IntPtr hWnd) {
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AccessibleObjectFromWindow(hWnd, OBJID.OBJID_WINDOW, ref accessible);
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if (accessible == null) {
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throw new Exception();
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}
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}
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public void ActivateIETab(string tabCaptionToActivate) {
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foreach (Accessible accessor in Children) {
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foreach (var child in accessor.Children) {
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foreach (var tab in child.Children) {
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if (tab.Name == tabCaptionToActivate) {
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tab.Activate();
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return;
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}
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}
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}
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}
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}
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public void CloseIETab(string tabCaptionToClose) {
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foreach (Accessible accessor in Children) {
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foreach (var child in accessor.Children) {
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foreach (var tab in child.Children) {
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if (tab.Name == tabCaptionToClose) {
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foreach (var CloseTab in tab.Children) {
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CloseTab.Activate();
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}
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return;
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}
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}
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}
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}
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}
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public void ActivateIETab(int tabIndexToActivate) {
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var index = 0;
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foreach (Accessible accessor in Children) {
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foreach (var child in accessor.Children) {
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foreach (var tab in child.Children) {
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if (tabIndexToActivate >= child.ChildCount -1) {
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return;
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}
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if (index == tabIndexToActivate) {
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tab.Activate();
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return;
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}
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index++;
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}
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}
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}
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}
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public string IEActiveTabUrl {
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get {
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foreach (Accessible accessor in Children) {
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foreach (var child in accessor.Children) {
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foreach (var tab in child.Children) {
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object tabIndex = tab.accessible.get_accState(CHILDID_SELF);
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if ((int)tabIndex == IE_ACTIVE_TAB) {
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var description = tab.accessible.get_accDescription(CHILDID_SELF);
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if (!string.IsNullOrEmpty(description)) {
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if (description.Contains(Environment.NewLine)) {
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var url = description.Substring(description.IndexOf(Environment.NewLine)).Trim();
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return url;
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}
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}
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}
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}
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}
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}
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return string.Empty;
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}
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}
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public int IEActiveTabIndex {
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get {
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var index = 0;
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foreach (Accessible accessor in Children) {
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foreach (var child in accessor.Children) {
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foreach (var tab in child.Children) {
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object tabIndex = tab.accessible.get_accState(0);
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if ((int)tabIndex == IE_ACTIVE_TAB) {
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return index;
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}
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index++;
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}
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}
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}
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return -1;
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}
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}
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public string IEActiveTabCaption {
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get {
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foreach (Accessible accessor in Children) {
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foreach (var child in accessor.Children) {
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foreach (var tab in child.Children) {
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object tabIndex = tab.accessible.get_accState(0);
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if ((int)tabIndex == IE_ACTIVE_TAB) {
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return tab.Name;
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}
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}
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}
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}
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return string.Empty;
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}
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}
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public List<string> IETabCaptions {
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get {
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var captionList = new List<string>();
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foreach (Accessible accessor in Children) {
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foreach (var child in accessor.Children) {
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foreach (var tab in child.Children) {
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captionList.Add(tab.Name);
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}
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}
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}
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// TODO: Why again?
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if (captionList.Count > 0) {
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captionList.RemoveAt(captionList.Count - 1);
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}
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return captionList;
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}
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}
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public IEnumerable<string> IETabUrls {
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get {
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foreach (Accessible accessor in Children) {
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foreach (var child in accessor.Children) {
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foreach (var tab in child.Children) {
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object tabIndex = tab.accessible.get_accState(CHILDID_SELF);
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var description = tab.accessible.get_accDescription(CHILDID_SELF);
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if (!string.IsNullOrEmpty(description)) {
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if (description.Contains(Environment.NewLine)) {
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var url = description.Substring(description.IndexOf(Environment.NewLine)).Trim();
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yield return url;
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}
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}
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}
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}
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}
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}
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}
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public int IETabCount {
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get {
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foreach (Accessible accessor in Children) {
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foreach (var child in accessor.Children) {
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foreach (var tab in child.Children) {
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return child.ChildCount - 1;
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}
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}
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}
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return 0;
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}
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}
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private Accessible(IAccessible acc) {
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if (acc == null) {
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throw new Exception();
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}
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accessible = acc;
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}
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private void Activate() {
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accessible.accDoDefaultAction(CHILDID_SELF);
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}
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private static object[] GetAccessibleChildren(IAccessible ao, out int childs) {
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childs = 0;
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object[] ret = null;
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int count = ao.accChildCount;
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if (count > 0) {
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ret = new object[count];
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AccessibleChildren(ao, 0, count, ret, out childs);
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}
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return ret;
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}
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}
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}
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