mmarquee.uiautomation.IUIAutomationWindowPatternConverter Maven / Gradle / Ivy

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A Java library that wraps the MS UIAutomation library.
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package mmarquee.uiautomation;

import com.sun.jna.Function;
import com.sun.jna.Pointer;
import com.sun.jna.platform.win32.Guid;
import com.sun.jna.platform.win32.WinNT;
import com.sun.jna.ptr.IntByReference;
import com.sun.jna.ptr.PointerByReference;

/**
 * @author Mark Humphreys
 * Date 05/06/2017.
 */
public class IUIAutomationWindowPatternConverter {
    // TODO: Check this
    private static int METHODS = 18; // 0-2 IUnknown,
                                     // 3-17 IUIAutomationWindowPattern

    private static final int CLOSE = 3;
    private static final int WAIT_FOR_INPUT_IDLE = 4;
    private static final int SET_WINDOW_VISUAL_STATE = 5;
    private static final int GET_CURRENT_CAN_MAXIMIZE = 6;
    private static final int GET_CURRENT_CAN_MINIMIZE = 7;
    private static final int GET_CURRENT_IS_MODAL = 8;
    private static final int GET_CURRENT_IS_TOPMOST = 9;

    public static IUIAutomationWindowPattern pointerToInterface(
            final PointerByReference ptr) {
        final Pointer interfacePointer = ptr.getValue();
        final Pointer vTablePointer = interfacePointer.getPointer(0);
        final Pointer[] vTable = new Pointer[METHODS];
        vTablePointer.read(0, vTable, 0, vTable.length);
        return new IUIAutomationWindowPattern() {
            // IUnknown
            @Override
            public WinNT.HRESULT QueryInterface(Guid.REFIID byValue,
                                                PointerByReference pbr) {
                Function f = Function.getFunction(vTable[0],
                        Function.ALT_CONVENTION);
                return new WinNT.HRESULT(
                        f.invokeInt(
                                new Object[]{interfacePointer,
                                        byValue,
                                        pbr}));
            }

            @Override
            public int AddRef() {
                Function f = Function.getFunction(vTable[1],
                        Function.ALT_CONVENTION);
                return f.invokeInt(new Object[]{interfacePointer});
            }

            public int Release() {
                Function f = Function.getFunction(vTable[2],
                        Function.ALT_CONVENTION);
                return f.invokeInt(new Object[]{interfacePointer});
            }

            public int close() {
                Function f = Function.getFunction(vTable[CLOSE],
                        Function.ALT_CONVENTION);
                return f.invokeInt(new Object[]{interfacePointer});
            }

            public int waitForInputIdle(Integer milliseconds,
                                        IntByReference success) {
                Function f =
                        Function.getFunction(vTable[WAIT_FOR_INPUT_IDLE],
                            Function.ALT_CONVENTION);
                return f.invokeInt(
                        new Object[]{interfacePointer, milliseconds, success});
            }

            public int setWindowVisualState(Integer state){
                Function f =
                        Function.getFunction(vTable[SET_WINDOW_VISUAL_STATE],
                            Function.ALT_CONVENTION);
                return f.invokeInt(
                        new Object[]{interfacePointer, state});
            }

            public int getCurrentCanMaximize(IntByReference retVal){
                Function f =
                        Function.getFunction(vTable[GET_CURRENT_CAN_MAXIMIZE],
                            Function.ALT_CONVENTION);
                return f.invokeInt(new Object[]{interfacePointer, retVal});
            }

            public int getCurrentCanMinimize(IntByReference retVal){
                Function f =
                        Function.getFunction(vTable[GET_CURRENT_CAN_MINIMIZE],
                            Function.ALT_CONVENTION);
                return f.invokeInt(new Object[]{interfacePointer, retVal});
            }

            public int getCurrentIsModal(IntByReference retVal) {
                Function f =
                        Function.getFunction(vTable[GET_CURRENT_IS_MODAL],
                            Function.ALT_CONVENTION);
                return f.invokeInt(new Object[]{interfacePointer, retVal});
            }

            public int getCurrentIsTopmost(IntByReference retVal) {
                Function f =
                        Function.getFunction(vTable[GET_CURRENT_IS_TOPMOST],
                            Function.ALT_CONVENTION);
                return f.invokeInt(new Object[]{interfacePointer, retVal});
            }
        };
    }
}