split keyboard input logic into platform specific code

2018-11-09 00:07:31 +01:00
parent ac0df69c9b
commit 0c6a7ff498
8 changed files with 274 additions and 155 deletions
@@ -0,0 +1,20 @@
+#include "KeyboardInputDummy.h"
+
+namespace advsettings {
+
+void KeyboardInputDummy::sendKeyboardInput(QString input)
+{
+    // noop
+}
+
+void KeyboardInputDummy::sendKeyboardEnter()
+{
+    // noop
+}
+
+void KeyboardInputDummy::sendKeyboardBackspace(int count)
+{
+    // noop
+}
+
+}
@@ -0,0 +1,19 @@
+#ifndef KEYBOARDINPUTDUMMY_H
+#define KEYBOARDINPUTDUMMY_H
+
+#include "../KeyboardInput.h"
+
+// application namespace
+namespace advsettings {
+
+class KeyboardInputDummy : public KeyboardInput
+{
+public:
+    virtual void sendKeyboardInput(QString input) override;
+    virtual void sendKeyboardEnter() override;
+    virtual void sendKeyboardBackspace(int count) override;
+};
+
+}
+
+#endif // KEYBOARDINPUTDUMMY_H
@@ -0,0 +1,140 @@
+#include "KeyboardInputWindows.h"
+#include <Windows.h>
+
+namespace advsettings {
+
+void fillKiStruct(INPUT& ip, WORD scanCode, bool keyup) {
+    ip.type = INPUT_KEYBOARD;
+    ip.ki.wVk = scanCode;
+    if (keyup) {
+        ip.ki.dwFlags = KEYEVENTF_KEYUP;
+    } else {
+        ip.ki.dwFlags = 0;
+    }
+    ip.ki.wScan = 0;
+    ip.ki.dwExtraInfo = 0;
+    ip.ki.time = 0;
+};
+
+void KeyboardInputWindows::sendKeyboardInput(QString input)
+{
+    int len = input.length();
+    if (len > 0) {
+        LPINPUT ips = new INPUT[len * 5 + 3];
+        unsigned ii = 0;
+        bool shiftPressed = false;
+        bool ctrlPressed = false;
+        bool altPressed = false;
+        for (int i = 0; i < len; i++) {
+            short tmp = VkKeyScan(input.at(i).toLatin1());
+            WORD c = tmp & 0xFF;
+            short shiftState = tmp >> 8;
+            bool isShift = shiftState & 1;
+            bool isCtrl = shiftState & 2;
+            bool isAlt = shiftState & 4;
+            if (isShift && !shiftPressed) {
+                fillKiStruct(ips[ii++], VK_SHIFT, false);
+                shiftPressed = true;
+            } else if (!isShift && shiftPressed) {
+                fillKiStruct(ips[ii++], VK_SHIFT, true);
+                shiftPressed = false;
+            }
+            if (isCtrl && !ctrlPressed) {
+                fillKiStruct(ips[ii++], VK_CONTROL, false);
+                ctrlPressed = true;
+            } else if (!isCtrl && ctrlPressed) {
+                fillKiStruct(ips[ii++], VK_CONTROL, true);
+                ctrlPressed = false;
+            }
+            if (isAlt && !altPressed) {
+                fillKiStruct(ips[ii++], VK_MENU, false);
+                altPressed = true;
+            } else if (!isAlt && altPressed) {
+                fillKiStruct(ips[ii++], VK_MENU, true);
+                altPressed = false;
+            }
+            fillKiStruct(ips[ii++], c, false);
+            fillKiStruct(ips[ii++], c, true);
+        }
+        if (shiftPressed) {
+            fillKiStruct(ips[ii++], VK_SHIFT, true);
+            shiftPressed = false;
+        }
+        if (ctrlPressed) {
+            fillKiStruct(ips[ii++], VK_CONTROL, true);
+            ctrlPressed = false;
+        }
+        if (altPressed) {
+            fillKiStruct(ips[ii++], VK_MENU, true);
+            altPressed = false;
+        }
+        if (!SendInput(ii, ips, sizeof(INPUT))) {
+            char *err;
+            auto errCode = GetLastError();
+            if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
+                    NULL,
+                    errCode,
+                    MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // default language
+                    (LPTSTR)&err,
+                    0,
+                    NULL)){
+                LOG(ERROR) << "Error calling SendInput(): Could not get error message (" << errCode << ")";
+            } else {
+                LOG(ERROR) << "Error calling SendInput(): " << err;
+            }
+        }
+        delete ips;
+    }
+}
+
+void KeyboardInputWindows::sendKeyboardEnter()
+{
+    LPINPUT ips = new INPUT[2];
+    fillKiStruct(ips[0], VK_RETURN, false);
+    fillKiStruct(ips[1], VK_RETURN, true);
+    if (!SendInput(2, ips, sizeof(INPUT))) {
+        char *err;
+        auto errCode = GetLastError();
+        if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
+            NULL,
+            errCode,
+            MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // default language
+            (LPTSTR)&err,
+            0,
+            NULL)) {
+            LOG(ERROR) << "Error calling SendInput(): Could not get error message (" << errCode << ")";
+        } else {
+            LOG(ERROR) << "Error calling SendInput(): " << err;
+        }
+    }
+    delete ips;
+}
+
+void KeyboardInputWindows::sendKeyboardBackspace(int count)
+{
+    if (count > 0) {
+        LPINPUT ips = new INPUT[count * 2];
+        for (int i = 0; i < count; i++) {
+            fillKiStruct(ips[2 * i], VK_BACK, false);
+            fillKiStruct(ips[2 * i + 1], VK_BACK, true);
+        }
+        if (!SendInput(2 * count, ips, sizeof(INPUT))) {
+            char *err;
+            auto errCode = GetLastError();
+            if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
+                NULL,
+                errCode,
+                MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // default language
+                (LPTSTR)&err,
+                0,
+                NULL)) {
+                LOG(ERROR) << "Error calling SendInput(): Could not get error message (" << errCode << ")";
+            } else {
+                LOG(ERROR) << "Error calling SendInput(): " << err;
+            }
+        }
+        delete ips;
+    }
+}
+
+}
@@ -0,0 +1,19 @@
+#ifndef KEYBOARDINPUTWINDOWS_H
+#define KEYBOARDINPUTWINDOWS_H
+
+#include "../KeyboardInput.h"
+
+// application namespace
+namespace advsettings {
+
+class KeyboardInputWindows : public KeyboardInput
+{
+public:
+    virtual void sendKeyboardInput(QString input) override;
+    virtual void sendKeyboardEnter() override;
+    virtual void sendKeyboardBackspace(int count) override;
+};
+
+}
+
+#endif // KEYBOARDINPUTWINDOWS_H