Tear out or duplicate what's unique for WindowServer from Widgets.

This turned into a huge refactoring that somehow also includes
making locks recursive/reentrant.

1 files changed, 117 insertions, 0 deletions

diff --git a/WindowServer/WSScreen.cpp b/WindowServer/WSScreen.cpp
new file mode 100644
index 0000000000..2276ff6f5d
--- /dev/null
+++ b/WindowServer/WSScreen.cpp
@@ -0,0 +1,117 @@
+#include "WSScreen.h"
+#include "WSEventLoop.h"
+#include "WSEvent.h"
+#include "WSWindowManager.h"
+#include <AK/Assertions.h>
+
+static WSScreen* s_the;
+
+void WSScreen::initialize()
+{
+    s_the = nullptr;
+}
+
+WSScreen& WSScreen::the()
+{
+    ASSERT(s_the);
+    return *s_the;
+}
+
+WSScreen::WSScreen(unsigned width, unsigned height)
+    : m_width(width)
+    , m_height(height)
+{
+    ASSERT(!s_the);
+    s_the = this;
+
+    m_cursor_location = rect().center();
+
+    Keyboard::the().set_client(this);
+}
+
+WSScreen::~WSScreen()
+{
+}
+
+void WSScreen::on_receive_mouse_data(int dx, int dy, bool left_button, bool right_button)
+{
+    auto prev_location = m_cursor_location;
+    m_cursor_location.moveBy(dx, dy);
+    m_cursor_location.constrain(rect());
+    if (m_cursor_location.x() >= width())
+        m_cursor_location.setX(width() - 1);
+    if (m_cursor_location.y() >= height())
+        m_cursor_location.setY(height() - 1);
+    if (m_cursor_location != prev_location) {
+        auto event = make<MouseEvent>(WSEvent::MouseMove, m_cursor_location.x(), m_cursor_location.y());
+        WSEventLoop::the().post_event(&WSWindowManager::the(), move(event));
+    }
+    bool prev_left_button = m_left_mouse_button_pressed;
+    bool prev_right_button = m_right_mouse_button_pressed;
+    m_left_mouse_button_pressed = left_button;
+    m_right_mouse_button_pressed = right_button;
+    if (prev_left_button != left_button) {
+        auto event = make<MouseEvent>(left_button ? WSEvent::MouseDown : WSEvent::MouseUp, m_cursor_location.x(), m_cursor_location.y(), MouseButton::Left);
+        WSEventLoop::the().post_event(&WSWindowManager::the(), move(event));
+    }
+    if (prev_right_button != right_button) {
+        auto event = make<MouseEvent>(right_button ? WSEvent::MouseDown : WSEvent::MouseUp, m_cursor_location.x(), m_cursor_location.y(), MouseButton::Right);
+        WSEventLoop::the().post_event(&WSWindowManager::the(), move(event));
+    }
+    if (m_cursor_location != prev_location || prev_left_button != left_button)
+        WSWindowManager::the().draw_cursor();
+}
+
+void WSScreen::on_key_pressed(Keyboard::Key key)
+{
+    auto event = make<KeyEvent>(WSEvent::KeyDown, 0);
+    int key_code = 0;
+
+    switch (key.character) {
+    case 8: key_code = KeyboardKey::Backspace; break;
+    case 10: key_code = KeyboardKey::Return; break;
+    }
+    event->m_key = key_code;
+
+    if (key.character) {
+        char buf[] = { 0, 0 };
+        char& ch = buf[0];
+        ch = key.character;
+        if (key.shift()) {
+            if (ch >= 'a' && ch <= 'z') {
+                ch &= ~0x20;
+            } else {
+                switch (ch) {
+                case '1': ch = '!'; break;
+                case '2': ch = '@'; break;
+                case '3': ch = '#'; break;
+                case '4': ch = '$'; break;
+                case '5': ch = '%'; break;
+                case '6': ch = '^'; break;
+                case '7': ch = '&'; break;
+                case '8': ch = '*'; break;
+                case '9': ch = '('; break;
+                case '0': ch = ')'; break;
+                case '-': ch = '_'; break;
+                case '=': ch = '+'; break;
+                case '`': ch = '~'; break;
+                case ',': ch = '<'; break;
+                case '.': ch = '>'; break;
+                case '/': ch = '?'; break;
+                case '[': ch = '{'; break;
+                case ']': ch = '}'; break;
+                case '\\': ch = '|'; break;
+                case '\'': ch = '"'; break;
+                case ';': ch = ':'; break;
+                }
+            }
+        }
+        event->m_text = buf;
+    }
+
+    event->m_shift = key.shift();
+    event->m_ctrl = key.ctrl();
+    event->m_alt = key.alt();
+
+    WSEventLoop::the().post_event(&WSWindowManager::the(), move(event));
+}